Generally crushing, hammer crusher is the primary choice
Crushing/Broken, there are jaw
crusher, cone crusher, VSI
crusher, roll crusher,
generally choose the hammer crusher, but the traditional hammer crusher, there
are certain shortcomings, Hongxing's mechanical technology for pc1000 mountain x
800 hammer crusher, combined with the disadvantages of the use of it in the
actual production condition, puts forward several opinions for the reform:
1) article screen frame and sieve reinforcement article. Article screen
frame, the article sieve used after installation location wear-resistant
overlaying welding electrode welding screen frame, strengthening article wear
easily work face up to 5 mm height surfacing about screen, and will be fixed in
the article on screen welding article, can prevent screen frame deformation, the
article screen, have fixed protection scattered. This improvement can be greatly
extended article screen frame and the use time of article sieve, reduce the
material cost.
2) hammer crusher rotor static and dynamic balance test, install blow, this
improved balance hammer hammer crusher is to solve the vibration of important
ways. Will the hammer crusher base and its drive motor backed the basis of a
whole, the concrete lining, in order to enhance its ant-vibration performance
and avoid vibration damage, so as to ensure the hammer party based crusher
performance.
3) 160 mm frame screen extended, can decorate 4 screen, increase root article
hammer crusher work area, qualified products from the grain size in time, reduce
a crushing cavity smash the produce, reduce the load of the hammer, facilitate
production capacity.
4) the upper frame integral structure to structure, the structure profile
fraction to overhaul the rotor is very convenient, will only part of the
division of hoisted out can be left to move out of the rotor.
Transformation, must pay attention to cut the upper frame, add a pair of
flange, welding stress, guarantee the machine remove requirements of assembly
performance. Article R520 to screen a radian R510, make the screen and hammer
the clearance between the article is reduced, facilitate at the same time frame,
the adjustment of the article screen when hammer, screen after wearing a frame
can be enough adjust position.
Various conveyor belt provided by HXJQ meet your different demands
Rubber conveyor belt as an important configuration, a direct impact on the
production of conveyor performance, the current conveyors used more widely,
different manufacturers may require different capacity, and different lengths,
where the rubber conveyor from a crucial role. We also provide leather belt conveyor, waste material
conveyor.
The use of rubber conveyor belt:
Rubber conveyor belt with elastic good, high strength, impact resistance,
flex resistance is good, into a good groove, the use of elongation, suitable for
long-distance, high load, high-speed conveying materials under the conditions.
Rubber conveyor belts are widely used in coal, mining, port, metallurgy,
electric power, chemical industry transportation of materials. Sought after by
the majority of manufacturers
Rubber conveyor belt should pay attention to what we use it?
1, Once a conveyor belt deviation occurs, should take immediate measures to
correct;
2, conveyor belt that local damage, the application of rayon and timely
repair, so as not to expand;
3, to avoid the conveyor belt being rack, post or block material block to
prevent the misfortune to scratch the rip;
4, to avoid the roller covered by material, resulting in rotation not
working, to prevent leakage of material between the cards in the drum and the
tape, pay attention to the lubrication of conveyor belt moving parts, but not
oil belt;
As the professional manufacturer of complete sets of mining machinery,
such as ball mill,dryer,dryer,flotation machine, Henan Hongxing
is always doing the best in products and service.
Attention on the power project for first Medupi unit
State-owned power utility Eskoms current worst-case scenario for
delivering initial power to the grid from the first Medupi power station unit,
or Unit 6, was currently September 2013, Engineering News Online has
learned.
The unit would be the first of six to begin producing at the R100-billion
(R125-billion when interest during construction was included), 4 800 MW
coal-fired plant, which was currently under construction near Lephalale, in the
Limpopo province.
The scenario was premised on there being no material improvement in the
delivery of the key boiler contract, which was being built and installed by
Hitachi in association with local and international subcontractors. Together,
the boilers for Medupi, as well as the Kusile power station, which is being
built almost simultaneously in Mpumalanga, were valued at R38.5-billion and
represent the largest single contract ever awarded by Eskom.
There had been a range of problems with the project, which moved ahead in
2006 despite the absence of a finalised design and a funding plan, as well as a
serious dearth of internal project management capacity, which was augmented by
PB Power.
Initial site preparation was delayed, which had a knock-on effect to the
laying of the civil foundations by a joint venture led by Murray & Roberts
(M&R). Progress has since been made in agreeing the precise scope of the
works and additional advances had been paid to M&R in line with that new
scope.
But the boiler portion remained a concern and Eskom currently had serious
doubts about the ability of Hitachi and its subcontractors to deliver on the
contracted 48-month delivery schedule for the first unit. We manufacture
complete sets of mining equipment, jaw crusher, compact crusher, ball mill.
A source close to the development said that, in other parts of the world,
Hitachi generally delivered such units in 62 months and that it was also
currently about ten-and-a-half months behind on the Medupi delivery
schedule.
The delays had arisen partly as a result of serious deviations, against the
original design, on the steel fabrication portion of the contract, which had
been let to M&Rs Genrec between January and March more than 6 000
modifications had to be made.
But also, insufficient human resources had reportedly been mobilised for
actual erection, which led to the appointment, in August, of Shanahan
Engineering.
Site logistics were also described as appalling, which had further delayed
erection, as had serious welding errors, which were currently being remedied by
the appointment of yet more foreign welders, mainly from Thailand, as well as
the introduction of an orbital welding machine.
The critical hydro-pressure test, which was scheduled for December 2011,
would not take place this year. In fact, under the worst-case scenario, which
was premised on the delivery performance to date, the pressure test would only
take place in September 2012, which would result in first power in September
2013 and a ramp-up to full capacity over several months. Recent years, the
machinery industry develops fastly, there are cone crusher, energy saving cone ball mill.
Eskom was meeting weekly with Hitachi and there were various scenarios under
discussion to improve delivery by between 10% and 50%. Should a 10% improvement
be achieved, first power would arise in June 2012. Should it improve by 20%, the
date would be brought forward to May 2013 and a 50% improvement would result in
first power by March 2013.
Hitachi Power Africa CEO Johannes Musel indicated recently that the first
Medupi unit should be producing during the first half of 2013.
Talking about and reading the valuation opinion for Woulfe Mining
Glanville is of the opinion that the after-tax value of Sangdong, after
paying the 2% net smelter return royalty, is approximately US$300 million,
within a reasonable range from US$200 million to US$400 million. This Valuation
Opinion takes into account a 50% reduction from the calculated net present
value, as the project Prefeasibility and Feasibility Studies are yet to be
completed. Woulfe is on target to publish the Prefeasibility Study and the full
Feasibility Study later this year.
In the method used for this valuation, annual cash flows are projected over
the expected life of the project, and these cash flows are then discounted at an
appropriate rate to arrive at a Net Present Value. A comprehensive in-house cash
flow model has been prepared and reviewed by Glanville. That comprehensive model
has been utilized by Glanville to generate cash flow projections based on a
number of different input parameters and assumptions, some of which are
different from those utilized by Woulfe (including a higher estimated capital
cost). Some of the key input assumptions include a sales price of US$375 per
metric tonne unit of WO3 (in ammonium paratungstate), a twenty-one year mine
life at an annual mill-feed production rate of 1.2 million tonnes, an average
grade of 0.41% WO3, and an after-tax constant-dollar discount rate of 8%.
Brian Wesson, CEO and President of Woulfe, commented, 'The Valuation Opinion
is within the range we were expecting. We undertook this valuation to assist the
Woulfe Board in evaluating potential transactions that may eventuate. With this
document in hand, the Board will be in a better position to make decisions in
the best interest of Woulfe shareholders.'
As the information provided in the Valuation Opinion does not contain an
economic analysis which conforms with National Instrument 43-101, the economic
viability of Sangdong will remain uncertain until completion of at least the
Prefeasibility Study, which is expected in a couple of months.
As previously announced, the Company commissioned PricewaterhouseCoopers
('PwC') to undertake a valuation of Sangdong, and this valuation has been
completed. However, due to the confidential nature of some of the information
contained in the report by PwC, it will not be submitted to SEDAR. The
conclusions of the PwC report are consistent with this Valuation Opinion.
Woulfe Mining Corp. is a TSX-V listed company with a diversified portfolio of
mining licenses for tungsten, molybdenum, gold, base metals and uranium-vanadium
in South Korea. In China, Henan Hongxing is titled as 'China Famous Machinery
Brand', there are series of machines, jaw crusher, impact crusher, ball press, ball mill, Raymond mill, limestone jaw
crusher.
The company is focused on the development of the Sangdong tungsten mine (one
of the World's largest and most renowned tungsten mine's for 40 years) a
property that we believe has substantial value for our shareholders. The outcome
of the scoping study in March 2010 determined that the project NPV was US$467
million at a commodity price of $25,000 per tonne Ammonium Paratungstate (APT).
Today, the APT price is over US$45,000 per tonne. Woulfe has accelerated the
project due to the robust project and market. The company's target is to move to
production at the end of 2012. In the last 18 months the company has focused on
building the Sangdong tungsten mine team and reopening the mine. The project is
well staffed with professionals and is moving forward rapidly.
Neither TSX Venture Exchange nor its Regulation Services Provider (as that
term is defined in the policies of the TSX Venture Exchange) accepts
responsibility for the adequacy or accuracy of this release.
Recent news and reports on iron ore of Vale shipments to China
World No. 2 iron ore producer Rio Tinto cited a strategy by bigger rival Vale
to divert European shipments to China for a dramatic softening in market prices.
Because of the iron ore prices, it affects the jaw crusher markets.
Rio's iron ore division head and Australian chief executive Sam Walsh said a
move by Vale to ship more to China had not caused Rio to curb its own iron ore
production runs, which are running at full capacity.
'The softening in iron ore prices relates to Vale shipping material that was
destined for Europe into China,' Walsh told a business forum in Perth on
Tuesday.
Spot iron ore prices have shed 19 percent so far this month in a sell-off
largely fueled by slower construction steel demand in China.
China is the world's biggest customer of imported iron ore, accounting for
around 400 million tonnes annually.
In Europe, a more important market for Vale than Rio, steel markets have
fallen under a cloud of doubt given its debt crisis.
Growth of Europe's steel production will slow in 2012 along with activity in
the steel-using sectors, Eurofer, the European steel producers association has
forecast.
Spot iron ore prices on Tuesday fell nearly 4 percent. It was the biggest
single-day drop since August 2009 as thin demand from China forced some traders
to sell at a loss.
'Traders who can't hold positions because they don't have sufficient funding
are selling at a loss of $40-$45 a tonne,' said a Singapore-based iron ore
trader.
'My business is shipping flat out,' Walsh said. 'We are producing at record
rates.'
Walsh downplayed the lasting effect of Vale's strategy.
'There's a limit to what they can physically ship,' Walsh later told Reuters
on the side of the forum. 'We're not overly concerned about that.'
He said Rio remains confident in the long-term drivers of economic growth and
iron ore demand in China.
In the short term, the market was worried about the European crisis, but it
was not having a direct impact on Rio's operations, he said.
'The issue is contagion. It's perception, it's fears,' he said. 'When you
look at the fundamentals of China, India, South Asia, North Asia, we find it's
very robust.'
Vale, the largest of the three top producers, reluctantly discarded the
once-a-year-price system in 2010 only after BHP Billiton and Rio bowed out,
cognisant it would upset customers. In the end it had no choice but to follow
suit.
Now, with spot prices trailing the last quarter's average price mark and lead
times on Brazilian cargoes to China much longer than the Australian miners, Vale
has announced it is open to alternative pricing systems.
Some analysts have interpreted this as paramount to Vale offering discounted
iron ore to boost sales.
As the professional manufacturer of complete sets of
mining machinery, such as impact
crusher,dryer,rod mill,rotary kiln, Henan Hongxing is
always doing the best in products and service.
How is Japan's iron ore market now and in the future
Affected by the earthquake, Japan heavy industry market meet the great
losses, which brings the challenge and chance for China machinery market.
Japanese steelmakers JFE Holdings and Sumitomo Metal Industries said on Tuesday
they would not cancel their currently more expensive long-term iron ore
purchasing contracts for October-December despite a plunge in prices on the spot
market. We are the professional manufacturer of mining machinery, crushing
equipment, sand making equipment, sand washer, roll crusher, rod mill.
The comments came a week after Vale's chief executive said the Brazilian
miner was open to discussing different iron ore pricing systems with clients, as
a tumble in the price of ore has led to pressure from steel mills for more
flexibility.
Weaker demand for steel in China, the world's biggest consumer and producer,
has dragged down steel prices and slashed the appetite for iron ore, the key
steelmaking raw material.
Some Asian steel giants have been pressuring suppliers as spot iron prices
have slid to their lowest in a year and are set to post their biggest weekly
decline in 15 months as demand from top importer China remains thin, fuelling
expectations prices could drop further.
Asian mills, with margins cut by lower steel prices, are not that keen on
paying around $170 a tonne for iron ore -- the fourth-quarter contract rate
based on June-August average spot prices -- when the current rate is around
$145.
Vale has told Chinese steelmakers it will give them options to buy the raw
material cheaper, sources told Reuters this month, as spot prices for iron ore
have dropped below the quarterly contract system created last year.
But Sumitomo Metal Industries, which is set to complete a merger with Nippon
Steel, the world's No.4 steelmaker, in October 2012, has not yet received offers
from miners to change iron ore contract prices for the October-December quarter,
a company official told Reuters.
Grasp the chance to develop our mining machinery industry, expand our jaw crusher market, ball mill market and
others.
Cast iron in casting process is very common in the process of cast iron
products. For its quality problem is be worthy of attention, so we must learn
about the effects of several factors of cast iron pieces of ball mill. Of course, not for
ball mill, we also provide the accessories of crushing plant, cement mill, impact crusher, jaw crusher etc.
The first is the process operation.Control and check the quality of the
casting in the manufacturing production.
The second is to possess a reasonable casting process.
The third is the quality of raw materials in the casting. If the quality of
the raw materials dose not match the standard, it will make the iron casting
generate defects, which effects of appearing quality and internal quality or
even make the cast iron scrap.
In recent years, wear-resistant casting industry has developed continuously
with the development of our national economy. And it now has become an
independent industry.
At present, due to the inevitable and objective wear problem in the
development of the industry exists in reality. Therefore, as long as the basic
raw material industry develops, the needs of casting wear-resistant parts will
be also continuous in supply. What's more, as the ceaseless progress of industry
and the requirements of energy saving and environmental protecting, the quantity
and variety of the wear-resistant parts in demand will continue to expand. The
wear-resistant castings industry will be more prosperous and have a stronger
vitality. Therefore, we call the wear-resistant casting industry an' immortal
industry'. Welding power source should be able to guarantee the long time
continuous and stable work. The operation machine can realize automatic welding
gun moving vertical and horizontal direction. The positioner can flip horizontal
rotation and vertical. Dust removal system is capable purify the welding fume
releasing by automatic welding gun.
Hongxing develops the double chamber for fine grinding
In the past practice of grinding technology, in the equipment making, people
often only consider whether the basic working state o the equipment can meet the
standard and output problem. With the requirement of energy saving and
environmental production becomes more and more strict, the extensive production
mode of original ball mill is
not suitable for the high precision production need of present stage. Therefore,
to achieve double bin classified grinding is necessary in the reforming of a
ball mill, rod mill and other
grinding mills.
Then, how does this kind of ball mill achieve energy saving? From the view of
the discharge and the feeding of raw materials, raw materials does not directly
enter the inside medium of cylinder through the hollow shaft neck of double
chamber ball mill, so the ball mill will not begin the selecting work until the
cylinder rotates at a speed around a horizontal axis.
The separation effects are mainly reflected in that bulk material fall into
crushing chamber while smaller pieces of material fall into the grinding chamber
through the conveying device. In this way, when their own gravity is larger than
the centrifugal force, the materials will be disengaged from the inner wall of
cylinder.
By the further optimizing the feedback device of the ball mill grinding
chamber we can see that we can easily capture the necessary feedback information
through the feedback device without further transformation of the situation,
which play a supplementary role in the separating warehouse of the ball mill.
After the separating warehouse, the ball mill can be saving ball mill
consumable, such as steel ball and lining board consumption.In addition, after
the classified chamber the ball mill can play two different effect, one is
crushing, the other is the grinding effect. It uses the inertial force of large
equipment for crushing, which is the unique property of the classified chamber
ball mill.
Comprehensive comparison, the classified chamber type ball mill can save
power consumption than traditional ball mill about 40%-50%. Through the power
distribution circuit of supercharging effect, the start consumption decrease 3-5
minutes than beforce. While the entire production and the grinding efficiency
increased 35%-45%. There are also ultra-fine Raymond ball mill, energy saving
ball mill.
Pay attention to the factors affecting the liner wear of a ball mill
Ball mill is one of the
essential part of mineral processing equipment. Many users of ball mill
complains that the liner plate of a ball mill is with short service life and a
high production costs. Henan Hongxing Mining Machinery summed up key factors
influencing the liner wear of a ball mil based on years of production
experience, which as a reference for the users of ball mill. Hope it can help
the users avoid a similar situation in production and prolong the service life
of ball mill liner plate. The key factors influencing the liner wear of a ball
mill generally include the following several points:
1, The impact of media material
The generally used crushing media mateial include: various mine materials
(manganese, copper, tungsten ore, chrome ore, etc.), various types of stone
(limestone, granite, gneiss, basalt, gray rock, etc.) and industry coal used in
power. The hardness of the media is the main basis that determines the liner
plate wear, the higher hardness of the media, the shorter service life of the
liner, on the contrary, if the media is with a lower hardness, the service life
of the liner will be prolonged.
2, The impact of operating conditions
1) Eliminate defects not timely.
2) Adjusting undeservedly makes the ball mill running at a short
positions.
3, The impact of liner material
The main parameters affecting the anti-wear effect is matching of the two
index of hardness and impacting toughness of liner material. If the liner plate
has a higher hardness, which means it has a good wear resistance, and the two
factor basically is a proportional relationship. The impacting energy depends on
the size of the diameter of steel ball and grinding tube.
4, the impact of the ball mill's designing and manufacturing and the
installing quality.
The performance of the lining plate generally include the following two: one
is to protect the cylinder; another is that the liner plate rotates at a
specific speed to raise the ball to the required height to achieve the desired
effect.
The quality of the liner plate is also direct factor affecting the normal
operation of the mill.
Those above are the main factors affecting ball mill liners, we recommend
that you should firstly consult the expert before you buy a ball mill. And you'd
better go to the manufacturers with strength production and reputable brand
purchase. You can contact us at any time for jaw crusher, ball press machine,
untra fine jaw crusher.
For fine coal, it's important to choose the coal crusher
At present, there are various crushers: jaw crusher, cone crusher, hammer crusher, roll crusher, and the crushers can
be classified into extrusion type, impact type, shear type according to the main
crushing force.
Extrusion type crushing machine mainly comprises jaw crusher, rotary crusher,
cone crusher, roll crusher and so on. Its working principle is: materials
crushed by the extrusion, splitting and bending force between the crushing
mechanism fixed tooth plate and the movable tooth plate. This kind of crusher
mixedly crush materials in the crushing cavity, which is vulnerable to the
formation of pulverization and easy to form the big shape product, which can't
ensure product particle size and with a large power consumption. This kind of
crusher is mainly used for crushing hard materials in metal, mining, gravel
field and other industries.
Impact type crushing machine mainly comprises impact crusher, hammer crusher
etc. This kind of crusher crush the coal by impacting with the hammer, after
every impacting, the materials accelerating, then flying to the impact plate,
shock, anti - shock, repeated by the same process, at the same time the
materials after being hit mutually impact in the crushing cavity. This kind of
crusher is difficult to control and which finally will lead to a mount of powder
coal. It is worse to use this kind of method to crush the coal with higher
fragility and lower hardness and it is strict with the size of the feeding. This
kind of crusher is suitable for coarse and medium crushing materials.
The crushing process of the key process in the coal dressing process and is
also the important means to improve the technical and economic index of the coal
dressing plant. Various forms of broken equipment, because of their different
crushing mechanism, has different applicable scope and use. Choose a suitable
crushing equipment you should according to the material properties and
operational requirements. Accordingly, it is that different forms of crushing
machine, because of its crushing principle is different, have different scope of
application.
As with different production condition, Henan Hongji provides different
crusher. You can select the crusher according to different needs. We sincerely
hope new and old customers come to visit our mill. If you have any requirements,
don't hesitate to contact us.
Hongxing's crushers are the helper to fight for tailings
Steel slag, slag and fly ash are collectively referred to the three major
industrial wastes. However, the utilization of steel slag is much lower than
that of slag and fly ash. Steel slag is usually used for packing or for firing
cement, overall the utilization is not high. Steel slag contains a certain
number of major mineral in cement clinker, which after being crushed and milled
by crusher or grinding machinery can be used for cement mixing materials and
concrete admixtures. There are still most of the slag heap abandoned in China,
which result in the waste of metal and slag resources. Therefore, the crushing
and grinding of the steel slag is the vital link, the development technology of
the crushing and grinding equipment will directly promote the recycling of slag
resources.
As a professional manufacturer of mining machinery, Henan Hongxing constantly
make efforts to develop and update crusher, grinding and screening equipment as
well as the gradual replacement of tailings processing equipment. The mechanical
equipment of Hongxing Group fully meet the environmental requirements,
especially jaw crusher, impact crusher, cone crusher and other crushing
equipment, which play a good role in recycling and re-utilization of tailings.
In addition, the cone crusher use a hydraulic chamber clearing system which
reduce the downtime. Various specifications of crusher have multi-crusher
chamber type, so the customers can select the cavity depending on their
requirements. Cone crusher take use of grease sealing system to avoid water
supply and drainage system from blocking and also avoid blocking the
oil-miscible and water deficiencies. The spring safety system is overload
protecting device, which can protect the crushing chamber from damaging.
Crusher effectively help remove the contaminated coat of the tailings in a
green way. Henan Hongxing Mining Machinery CO., LTD. is a high-tech R&D
enterprise, which engages in manufacturing and selling mining mechanical
equipments such as crushing machinery,grinding machinery,washing&drying
machinery,screening&dressing machinery,etc. The production of our company
have passed the authentication of of the international quality certification
system ISO9001:2000.We always believe the spirit of developing as absolute
principle, forge our brand with quality and promote the brand with
service.
The mutual benefits for combination crusher and road construction
In the process of the high speed road construction, the vast dinas raw
materials are essentially required. That only relying on outsourcing can not
fundamentally solve the problem of the need, so it is necessary to seek the
self-made manner. Thus, the need for compound crusher to provide sufficient
dinas raw materials for the high speed road construction. So compound crusher is
essential, compound crusher is widely used for medium and fine crushing of the
hard and high hard materials in many kinds of ores, cement and other industries.
And the compound crusher has been widely used for crushing the mechanism
construction sands and stones, and it has the higher efficiency and yeild.
Compound crusher has a greater crushing ratio, the size of the discharging
materials can be adjusted arbitrarily without the effect of the plate hammer,
liner wear, and without screen settings. It is not easy blocking when crushing
materials with high water content, large amount of mud. The compound crusher
uses the elastic regulating mechanism, entering unbroken material can be
automatically discharged, which protect the crusher from damaging. The structure
of the compound crusher rotor is unique, the rotor body is almost has no wear
when crushing materials. The back chamber body is installed with a screw rod or
a hydraulic opening mechanism, you can easily replace the wearing parts without
using the main equipment.
Materials falls into the high-speed rotation impeller from the upper vertical
combination crusher, at the
function of the centrifugal force, the materials will be crushed by impacting
with the other part materials by forming umbrella shunt. Materials are crushed
after several the process. The process is the process of compound crusher
crushing sand and stones aggregate for high-speed road processing, which proves
that the compound crusher is a fundamental crushing equipment of high-speed
road.
Our purpose is to promote the territory development through the development
of highway using our crushers, ball mills, machines and at the
same time promote local economic development. So the manufacturing high
performance compound crusher is the historical mission of every crushing
machinery manufacturer. And it is the struggling goal of us Hongxing day and
night. Prepared for dedicating to the modernization for China.
Excellent crushers can raise the production technical level
Crushers: jaw crusher, impact crusher, cone crusher, hammer crusher, roll crusher, mobile crushing
station etc. Small crusher received a variety of energy's role in practice, the
role of this energy include: the surrounding medium on the role of energy small
crusher , the mission operators , repair personnel and the role of environmental
conditions ; with small crusher operation and the agencies working on the
internal energy , such as various loads , vibration, temperature, etc. ; in the
manufacturing and assembly gathered in small crusher materials and components
within the potential energy and so on.
The energy is mainly to small crusher mechanical energy , thermal energy ,
chemical energy in the form of existence. When the energy reaches a certain
value , the process will lead to the emergence of harmful,causing small crusher
parts of the initial performance and status changes. For example when it meet
the negative a certain degree of power and speed of movement, the friction
between the harmful process why results will lead to friction with the vice
appear small crusher wear , so that small crusher with the movement of such
changes.
With the development of harmful process,which make a small crusher parts
injury at first. The specific performance of wear,deformation, cracks,fatigue ,
corrosion , damage to the emergence of small crusher parts of the structure
parameters change,such as tolerance , geometric tolerances ,with the gap and
other changes. Structural changes in the parameters has led to a small crusher
function output parameters change in the parameters, such as small crusher
output power and speed of change .
With the further expansion of the degree of injury , small crusher parts
gradually exceeded the structural parameters of allowable values. If the small
crusher parts exceed the allowed values of structural parameters , output
parameters and functions do not exceed acceptable limits , it appeared that the
small crusher potential failure , the corresponding abnormal state of the state
.At this time,we should be adopted to eliminate maintenance ;If we used the
small crusher a long time , the main components have reached the limits of
structural parameters , output parameters and the system features go into
serious overrun , with the economy decreased , this time the small crusher needs
to overhaul or updated in a state of extreme technology .
Excess capacity into the machinery industry is a major problem
According to the China Construction Machinery Business survey, 26 of the main
manufacturers of excavators in China sold 8868 units in September, 23.86% down.
Excavator cumulative increase since February of this year climbed to the highest
point, it has been declining for several months. China Construction Machinery
Industry Association has predicted the next five years, the construction
machinery industry is expected to be 17% annual growth. But now the growth
target is being challenged. Growth in the second quarter of this year began the
rapid decline in construction machinery industry had still not out of the signs
down, the industry growth is still in the 'bottom.' Affected after construction
machinery enterprises are expanding production capacity is becoming excess
capacity.
Excavator sales decline in a row is typical of China's construction machinery
industry reflected. According to industry experts say, since the second quarter
this year, sales of construction machinery industry continued to decline, this
phenomenon has not been checked in the third quarter. Zoomlion Chairman Zhan
Chun new that the growth rate of decline in construction machinery industry,
there have been signs of late last year, the first quarter of this year,
industry unexpectedly explosive growth has actually overdrawn market demand,
sales of construction machinery starting from the second quarter, a marked
decline in . Railway construction slowdown, real estate is the construction
machinery industry sales for the decline. Data show that the Ministry of
Railways to complete the first nine months of capital construction investment
346.879 billion yuan, down 19.3%. National Railway in the third quarter ended
investment for years the Great Leap Forward.
Data also shows that the first three quarters this year, China's fixed asset
investment up 24.9% nominal growth (after deducting price factors, the actual
increase of 16.9%), down 0.7 percentage points over the first half, shrinking
demand for construction machinery industry downstream. Industry sales is to
continue to decline or rebound in the fourth quarter? At the recent 2011 Global
Construction Machinery Industry 50 Conference and Summit, insiders believe that
the fourth quarter of this year may have tail phenomenon. However, many industry
experts believe that the macroeconomic policies remain unchanged, the
construction machinery industry will be difficult to return to the past growth
rate. Institute of Finance, the State Council Development Research Center, Xia
Bin, director on the warning, do not use the past to simulate the growth rate is
derived future growth, construction machinery industry is facing the future
development of more uncertainty.
In the industry under the background of slowing demand, the domestic
construction machinery industry excess capacity problem increasingly prominent.
And 'excess capacity' has become the focus of engineering machinery industry
conference topics. ZhanChunXin the truth, construction machinery industry excess
capacity are triggering industry malignant competition. Xugong group President
and general manager of the rabbit liugong zeng pins identity construction
machinery has appeared excess capacity. However, they think, industry excess
capacity is the low end products of the excess, in high-end products field still
have space. Four trillion yuan investment by pulling, engineering machinery
industry become fast development, the related businesses expand the capacity to
increase investment. A shares the main engineering machinery listed companies
have or are almost through shares expand the capacity of financing.
International experts will China enterprise overcapacity called it 'assembly
excess capacity'. In order to deal with excess capacity bring industry
competition, some large engineering machinery enterprise is calling on industry
management department to make the industry standard, to regulate the market
competition.
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Demands pulls development of large sale mining machinery
With the development and innovation in towns, regions and cities, and aslo
the stress of buliding, water investment, which brings excellent challenge for
mining machinery in 2012.
Our main mining resources is changed overall. The government finance and
social input both stimulate the business development. Especially in recent
years, many ublic welfare geological work push the exploitation of mine in
western region and it's possible that a series of big iron bases, copper and
gold mine with thousands of tons will shape, which will change our mine
distribution pattern gradually that is important in the demands and development
of mining machinery industry.
Since the publish of Stopbuy Order, the high price of buildings is controlled
gradually. This order reduced the number of building construction, but for every
one has a living space, the government started to strength the building
investment and construction. The trend pushed the the steady rising demand for
construction equipment. Currently, large and green equipment has been the first
choice of the construction industry. Large-scale stone crushers have the
big crushing ratio, high productivity and automation, easy craft process and
simple operation. With those characters, the crushers can meet the demands, such
as expanding manufacturing scale, low cost and low consumption and etc. which
make the production efficiency and benefits rise. So, recent years mining
machinery is going forward to large sale.
Large-scale mining equipment meets for the common demands, and it doesn't
only make sure the efficiency and also the steady productivity and costcutting.
So far, China has been one big country on import, consumption, and manufacturing
for mining machinery. Of course, we aren't strong and powerful enough. For solid
and strong development, our mining machinery industry needs further innovation,
and the structure of the industry and product needs adjustment, and then we
transfer the mode of increasing economy, strengthen capacity of individual
innovation, and speed up the research and market expansion of high-end mining
machinery, beneniciation equipment, crushing equipment and their crucial parts.
Thus our product service will raise, industry competive power will improve. At
the same time, we must keep the green innovation road that can help us keep the
sustainable development and accomplish grant goals.
As the professional
manufacturer of complete sets of mining machinery, such as jaw breaker,stone crusher,Flotation cell, Henan
Hongxing is always doing the best in products and service.
Price always be the main factor no mater what people want to buy, the sand washer price is concerned by
the users before they make a decision to buy it. So what are the main factors
that affect the price of sand
washing machine, and how the price change, here is the brief introduction
about that. The raw material and human resource costs are the main factors which
caused the price change of sand washing machine.
Sand Washing Machine is widely used at quarries, mines, transportation
projects, utilities, and in the building material and chemical industries. The
Sand Washing machine can improve the quality of the sand because the sand washer
can reduce the dust and stone powder which mix with the final sand. The sand
washer ensures cleaning and dewatering through a novel-style sealing structure
and a reliable transmission device.
As we all know, steel is the main raw material of sand washer, the influence
of steel on sand washer price is very big. By the state macro-control effects,
fluctuations in the price of steel always be there, coupled with plenty of
market funds, this directly pushed up steel futures prices. And the steel price
change directly affect the cost of sand washer machine.
The shortage on human resource is another factor that affect sand washer
price. In recent years, Chinese business frequently have employment shortages,
this affected production of manufacturers, a large number of orders can not be
completed. In order to attract more people, companies in wages, benefits and
increase investment to attract the eyes of job seekers. It led to the sand
washing machine production costs. Directly reflected in the sand washing machine
prices.
Sand washing machine is widely used for cleaning materials in the following
industries: quarry, minerals, building materials, transportation, chemical
industry, water conservation and cement mixture station and so on. Our sand
washer has the characteristics of high cleaning,reasonable structure,big process
load, small power loss, low loss of substances in process of washing.
Development status of Mining Machinery Industry is a measure of one country's power
Mining Machinery is a high technological content and integration of
equipment, development of new equipment continued achievements in various fields
of human integration in, as materials science, manufacturing technology,
information technology, computer technology. There are new technologies into
products, parts update cycle is shorter and shorter, faster and faster updating
of new equipment, particularly the development of large mining machinery, no
mature experience to refer to, but does not allow any mistakes in the design
therefore have to rely on the integration of multidisciplinary technologies to
improve design efficiency and design quality, enhance the enterprise Innovation
Capacity and market competitiveness. Mining machinery and computer technology,
network technology formed the basis of comprehensive digital trends.
Mining machinery, plays a very important role in economic construction,
advance of science and technology, and social development. The development of
mining machinery is closely related with the technological advance of human, the
modern science and technology, and the whole industry level, especially with the
development of mechanical engineering and mining engineering. The mining
machinery manufacturing industry,especially crusher, is not only the foundation
for the state to establish an independent industrial system, but also an
important mark to measure the industrial strength of a country, which belongs to
the pillar industry of national economy.
Mining equipment manufacturing sector should accelerate the technology reform
pace of mechanical equipment under the guidance of national policy, optimize
product structure according to market demand, and increase savings in order to
have a more long-term development. Forming a manufacturing and development
capabilities, ability to project into, and innovative capacity of business
entities, the machinery and equipment business into a market competitiveness and
risk-resisting ability of modern mining equipment business groups, efforts to
provide energy saving mining equipment, to reduce mining the user's risk and
investment as a starting point, and make positive contribution to the
development of China's mining equipment industry.
Accordance with national priorities to support energy, transportation and raw
materials and other basic industrial development, industrial policy, mining
machinery such basic industries as the backbone of the country should get
priority for key support, should be further developed and improved for the coal,
metal and nonmetal mines development provide more advanced international
standards of quality, efficiency, environmental protection, energy saving
equipment to meet the economic development needs for energy and raw
materials.
We have useful tips to choose proper coarse crusher
Coarse Crusher is applied as supporting equipment, before fine crushing
process in such trade as pharmaceutical, chemical and foodstuff etc., the
crusher has better crushing effect for any material without limitation on its
viscosity, hardness, softness and fiber etc... This crusher is of vertical
crushing structure, and the material is fed into the crushing chamber through a
hopper, crushed by simultaneous cutting of both fixed and movable knives and
rotating impact of rotating knife, and flows to the exit automatically under the
effect of rotating centrifugal force.
Broken equipment must be chosen to give the compound into the largest block
of material, therefore, to the mine mouth crusher maximum width should be 1.2
times the size of the block material.
Design of large and medium-sized concentrator, in determining selection of jaw crusher or a gyratory
crusher before use, generally from the installation of power equipment, weight
equipment, infrastructure investment, production and management, equipment
configuration and process operation of the pros and cons After a technical and
economic aspects of comparison, to select the best.
Design, small concentrator, in order to adapt to the mining site to a large
degree the characteristics of ore blocks, ore block sizes need to adopt and
adapt the coarse crusher.
Located in the mining pit in the choice of coarse crushing machine, crushing
function should be considered a special lifting the disintegration of the
underground crusher(mining crusher for sale). Surface mining site located in the
semi-mobile crusher can be
used or mobile crusher.
Jaw crusher's advantages are: simple structure, light weight, relatively
inexpensive, easy maintenance and transportation, exterior height is small, need
to plant height is small, the workmanship, reliable, easy to adjust the port of
discharge, crushing wet ore and when with clay minerals more easily blocked.
Disadvantages are: lining wear, low treatment than gyratory crusher, crusher
product size uniform. Too large for a long time, request to mine even need to
set up equipment to the mine. In recent years, many domestic manufacturers to
develop and produce a series of new large crushing ratio Jaw Crusher, so
performance is greatly improved. Especially small and medium sized jaw crusher
is more prominent in the selection should be given adequate attention.
Gyratory crusher is a high breaking capacity of the equipment, mainly for
large, medium crushing hardness of the ore concentrator. Compared with jaw
crusher, the advantages are: less power consumption; can continuously broken
ore, processing capacity, to the mine mouth and at the same port of discharge
conditions, the processing capacity of gyratory crusher jaw crusher of 2.5 to 3
times; crushing cavity liner wear uniform distribution; broken product is too
large a small, uniform size; when conditions are right to mine, you can 'packed
to the mine,' do not need to mine equipment(crusher for sale in china).
Disadvantages are: the device structure is complicated; machine height, weight,
requires a solid foundation, increased plant height. It is usually used for
large-scale concentrator, a large cement plant.
The application and working process of a sand mill
Every business organization wants to attain an optimum production at minimum
fixed and operating cost. The quality and efficiency of machineries is entrusted
with the task of realizing this objective. A sand mill is a piece of industrial
equipment designed to grind a given material into very small particles of
roughly equal size. Sand mills are used for processing a wide variety of
products, and can also be used as mixers and dispersants, creating a uniform
mixture of several components during the grinding process. A number of companies
produce sand mills for various applications, including different designs and
sizes to meet the needs of various applications.
Talking about a sand mill, a central bar agitates the sand, causing it to
have a grinding action. Many sand mills produce very small particles on the
first pass, with the particles passing through a mesh screen. Others have
recapture systems, allowing people to pass the mixture through the sand mill
again to make it finer and more even. The design works by agitating the sand,
rather than creating pressure, ensuring that the grinding medium does not break
apart in the device when it is used properly.
As the name implies, sands can be used as grinding media, but other materials
may be used as well. The choice of medium depends on the material being ground.
Some companies maintain several mills dedicated for specific uses, while others
may change media as needed in a single sand mill. Sand mills are used in
cosmetics manufacturing, the production of paints and pigments, and similar
activities.
In the case of mixtures, sand mills can be used to run a mixture of
components through for processing into a uniform paste or powder. This is widely
applied in the production of paints, where pigments need to be ground with
stabilizers and other components before being blended with a base. As the
ingredients pass through the sand mill, they become thoroughly mixed. The very
fine grind offered by this device allows for highly stable mixes without patches
and chunks of various materials.
We follow strict quality management procedures at every level of our process
to ensure flawless production from every stage. The plants and machines
including resin manufacturing plants manufactured by us are based on proven
technologies presently serving successfully to both the domestic and overseas
clients.