The process of mining from discovery of an ore body through extraction of
minerals and finally to returning the land to its natural state consists of
several distinct steps. The first is discovery of the ore body, which is carried
out through prospecting or exploration to find and then define the extent,
location and value of the ore body. This leads to a mathematical resource
estimation to estimate the size and grade of the deposit.
This estimation is used to conduct a pre-feasibility study to determine the
theoretical economics of the ore deposit. This identifies, early on, whether
further investment in estimation and engineering studies is warranted and
identifies key risks and areas for further work. The next step is to conduct a
feasibility study to evaluate the financial viability, technical and financial
risks and robustness of the project.
This is when the mining company makes the decision to develop the mine or to
walk away from the project. This includes mine planning to evaluate the
economically recoverable portion of the deposit, the metallurgy and ore
recoverability, marketability and payability of the ore concentrates,
engineering concerns, milling and infrastructure costs, finance and equity
requirements and an analysis of the proposed mine from the initial excavation
all the way through to reclamation. The proportion of a deposit that is
economically recoverable is dependent on the enrichment factor of the ore in the
area.
Of course, in the process of mining, mining machinery such as jaw crusher, impact crusher, crane, belt conveyor are necessary. Once
the analysis determines a given ore body is worth recovering, development begins
to create access to the ore body. The mine buildings and processing plants are
built and any necessary equipment is obtained. The operation of the mine to
recover the ore begins and continues as long as the company operating the mine
finds it economical to do so. Once all the ore that the mine can produce
profitably is recovered, reclamation begins to make the land used by the mine
suitable for future use.
As professional mining machinery manufacturer learning the mining well
Mining is the extraction of valuable minerals or other geological materials
from the earth, from an ore body, vein or (coal) seam. The term also includes
the removal of soil. Materials recovered by mining include base metals, precious
metals, iron, uranium, coal, diamonds, limestone, oil shale, rock salt and
potash. Any material that cannot be grown through agricultural processes, or
created artificially in a laboratory or factory, is usually mined. Mining in a
wider sense comprises extraction of any non-renewable resource (e.g., petroleum,
natural gas, or even water).
Mining of stone and metal has been done since pre-historic times. Modern
mining processes involve prospecting for ore bodies, analysis of the profit
potential of a proposed mine, extraction of the desired materials and finally
reclamation of the land to prepare it for other uses once the mine is
closed.
The nature of mining processes creates a potential negative impact on the
environment both during the mining operations and for years after the mine is
closed. This impact has led to most of the world's nations adopting regulations
to moderate the negative effects of mining operations. Safety has long been a
concern as well, though modern practices have improved safety in mines
significantly.
Since the beginning of civilization, people have used stone, ceramics and,
later, metals found on or close to the Earth's surface. These were used to
manufacture early tools and weapons, for example, high quality flint found in
northern France and southern England was used to create flint tools. Flint mines
have been found in chalk areas where seams of the stone were followed
underground by shafts and galleries. The mines at Grimes Graves are especially
famous, and like most other flint mines, are Neolithic in origin (ca 4000 BC-ca
3000 BC). Other hard rocks mined or collected for axes included the greenstone
of the Langdale axe industry based in the English Lake District.
The oldest known mine on archaeological record is the 'Lion Cave' in
Swaziland, which radiocarbon dating shows to be about 43,000 years old. At this
site paleolithic humans mined hematite to make the red pigment ochre. Mines of a
similar age in Hungary are believed to be sites where Neanderthals may have
mined flint for weapons and tools.
Any Battlefield can't exist and stand without Soldiers and Weapons
In the field of mining machinery industry, workers and mining equipment are
the Soldiers and Weapons. The business field is just like a genteel
battlefield.
There are certain widely used crushing machineries in mining sector; they may
be jaw crushercone crusher, vertical
roller milland influence crusher and the like.
The cone crusher shares the exact same work principle with gyratory crusher;
nevertheless, it could only be applied to medium broken or finely damaged
crushing machinery which enjoys a greater uniformity with the basic operational
requirement than coarse crushing, therefore, the bottom of the crushing cavity
must be established on the parallel place, meanwhile, the cycle fee ought to
also be speeded around make certain a over the moment extrusion of the materials
in that parallel region.
The Jaw crusher, as one of many most frequently used crushing machinery, is
utilized to crush or breake all sorts of difficult supplies by two jaw slabs
with extruding and bending supplies. It is made up of the fixed jaw plate as
well as the movable jaw plate, once they are shut to one another, the material
will probably be damaged along with the pieces which are more compact compared
to substance discharge mouth will be discharged from the bottom when the two
plates are portion. This crushing movement is intermittent. Due to the benefits,
this sort of as basic development, reliable to crush challenging content, jaw
crusher has been far and widely utilised in mineral processing, development
resources and silicate and ceramic industries etcetera.
The vertical impact crusher
is apparently an excellent choice to crush and plastic soft or hard and very
tough materials. It has been extensively used within a variety of ores, cement,
refractories, alumina bauxite clinker, emery, glass uncooked components,
mechanism developing sand, stone and a variety of metallurgical slag, in
particular it's a better output successful in managing silicon carbide, emery,
sintered bauxite, etc. of all these particular tough and super difficult and
abrasive resistant materials than other forms of crusher.
By and large, the selected crushing machinery really should be the a single
which may very best accommodate the doing work situations, only in that way, it
could be manufactured full utilization of to accomplish an entire good
results.
Make clear the Stabs pierced the growth of mining machinery
The mining machinery refers for the gear that's utilised directly in this
sort of operations as the mineral mining and beneficiation. It addresses a wide
array which includes mining device, beneficiation machinery, crusher, dimension
reduction machinery, grinding machine, washing machinery, screening machine,
heading assembly utilized in mining, loading machine and some supporting
devices. Generally talking, the exploratory machinery may be integrated to the
genre of mining machinery. Additionally, a large number of crushers, ball mill, high
efficiency dryerand conveyors are all applied into the whole process of the
mining operations.
Such machines which are designed to execute the activity of crushing as
crusher, crusher station, scissor-shaped crushing device and quartering hammer
are all typically witnessed by us. The crushing devices can be used to refer to
a lot of crushers like jaw crusher, hammer crusher,
reaction crusher, influence crusher, cone crusher, roller
crusher, plastic cracking device, double-roll crusher, gyratory crusher and
compound crusher.
However, the acquainted dimensions reduction machinery involves the devices
which can be applied in mining procedure. There are lots of these kinds of
machines as mining-purpose grinder, ultrafine mill, the selective crusher, the
wood-oriented crusher, mechanical crusher, jet mill and low-temperature
mill.
With the further deepening of global economic construction, the manufacture
market in mining machinery is viewing alterations in the modes of production and
administration styles. However you'll find qualitative enhancements while in the
creation scale, the financial capabilities, the product technological innovation
and the amount of conduite, several problems such as the low independent
innovation capacity, high reliance upon foreign fundamental components, backward
technologies in high-end products and weak marketing advancement all stay to be
solved. Now the competition is shifting through the region of price tag to that
with the research in mining machinery. The trend inside the advancement of
crusher and pulverizer for your industry of mining machinery is toward the
orientation of large-scale advancement, digital intelligence and
ecology-friendly surroundings and energy conservation.
Another new business tendency Decentralization led by the financial market
More and more businesses tend to decentralization at the lower influence on
the financial market. In China, for example, predicted this phenomenon by
initiating market-oriented reforms in the financial sector. It starts up a large
number of banks and financial institutions in China to the financial sector
expected to stimulate even an industrial sustainable growth.
It is obvious from a historical perspective to the economic functioning of
markets is that the domestic market is functioning optimally and that the
collaborative development areas are given the opportunity to exchange thoughts
and ideas. We believe it crucial for a successful business concept is always
primarily the responsibility of the owners of designated operations management
to overcome these challenges as constraints of the budget for project funds or
generally lower growth in economic activity. But we must also be aware of the
underlying effects that government forces applied to instruments of national
economies around the world.By successfully orients us right in the markets with
the most optimal growth, we will succeed highlighted developments in subsequent
periods, and we maintain a balanced growth in manufacturing and developing, thus
competitive advantage, and the basic conditions for production and
distributition in the future. The trade in the form of export that require our
expertise and our competitiveness will thus always be available as a measure of
economic growth. We have before us a great mission of establishing new
production facilities for industrial designs in industrial metal
construction.
It is a streamlined marketing that a commitment has a significant impact on
sales and the sales volume ranks within the business. With a sales concept based
in trading machinery, machine equipments and tools to the construction
industries in very large markets. It is here we will establish the increase
required for the optimal income level, and it is as well on these coordinational
thoughts i would like to offer these opportunities for your cooperation to. Our
board work in close interplay of the market communication to that make the
desired impact possible and contributing to a larger sales volume. With the
industry trend analytical instruments, we can focus sales efforts directly to
the demand. The industrial demand, which has been mentioned by target-market
product offerings may include mining, maintenance activities in infrastructure,
forestry, agriculture, construction and real estate areas, etc.
Situation of full-year guidance in Australian mining production
SYDNEY Australia's Newcrest Mining , the world's third-largest gold
producer, on Monday cut its full-year output guidance by around 6 percent,
citing disruptions and lower grade ore at mines in Papua New Guinea and
Australia.
Newcrest said it now expects to produce 2.43-million to 2.55-million ounces
of gold in the 2011/12 financial year versus higher guidance in August.
Output in the quarter to Dec. 31 was likely to be between 575 000 and 585 000
oz, it also said.
The yield from the company's flagship Lihir Island mine in Papua New Guinea
would fall 100 000 oz under budget in part because of heavy rains at the mine
site, it said in a statement.
'It is unlikely this production will be recovered during the remainder of
this financial year,' Newcrest said.
Production at its Telfer mine -- one of the biggest in Australia -- would
fall short by about 50 000 t because the ore contained less gold than originally
believed, according to the company
Another Australian mine, Cadia Valley, will lose 30,000 ounces because of
ground slippage at the mine, made worse by rains, it said.
Full-year guidance for production of copper, mined as a by-product of gold,
remained unchanged at 75 000 to 85 000 t, according to the company.
Overseas news on The Launch of Joy Smart Services in Year 2009
US mining services company Joy Mining Machinery last week unveiled a smart
services centre the first on the African continent in Witbank, Mpumalanga,
South Africas coal-mining hub.
The facility monitors Joy mining machinery working on mines and provides the
necessary feedback to customers.
At the centre, it is possible to monitor the workload of the vehicles and
their maintenance history. It is also possible to plan maintenance work on the
machines as well as to plot the machines work route for the day.
The facility also serves as a centre of excellence, where mining companies
can send students or potential workers on training courses on operating Joy
machinery.
Joy Mining Machinery president Edward Doheny says that the centre will allow
Joy to feed critical operational data on its equipment and the mining operation
back to its engineering design centres around the world so that the company can
continue to provide maintenance infor-mation for customers.
Joy Smart Services will help the company increase its service performance to
the mines as it extends equipment life and provides predictive tools, so that it
has the right parts and services available when needed, says Doheny.
Joy Mining Machinery South Africa MD Jason Savage says: Many South African
mines are keen adopters of technology and have deployed it effectively to
increase productivity against a background of other mining constraints.As a
result, these South African coal mines are among the most productive and
lowest-cost room-and-pillar producers in the world.
He adds that although Joys machines are among the most expensive in the
world, there is still an opportunity to increase production. The deployment of
Joy Smart Services in partnership with customers will facilitate a strong
underground-to-surface interface by extending cutting time and improving process
availability.
The centre features techno-logical advance in predictive maintenance,
integration of mining processes, remote machine health monitoring, condition
monitoring, training and round-the-clock support.
At the hub of Joys Smart Services is the monitoring centre, which provides
real-time information and support on life cycle management packages. The control
room features a 6-m-wide video wall, which displays information dash-boards for
various machines at different customer sites, as well as comprehensive
underground machine and network status information.
The launch of Joy Smart Services marks the new begin-ning of an ongoing
journey, and is core to the companys global strategy.The services centre is
the culmination of Joys vision in partnership with its customers in applying
technology to improve safety and productivity and lower the cost of coal mined,
says Doheny.
Mining industry is far perkier, mine labor is far tighter
In recent decades, the demand for mining machinery and related parts is
derived from the demand for 'mine-able' natural resources. Mining is the
extraction of valuable geological materials from the surface of the earth or
from underground. In today's complex world, mined materials are widely used and
seen as strategic in many sectors. By affording access to such materials, mining
machinery occupies a central role in the value chain between mined natural
resources and intermediate or final goods.
Top North American miners of gold, copper and iron ore all said this week
that a sudden ramp-up of mining projects has begun to squeeze labor and mining
equipment and before long will slow or delay projects.
Executives talking to Reuters at this year's Mining and Steel Summit said,
skilled labor, especially geologists and mining engineers, were hard to come by
and lead times on heavy equipment has been stretched out for weeks or
months.
While none said their current plans were being stalled by shortages--the
largest miners have lengthy planning processes and lucrative compensation
packages to keep top talent--but, the day was not long off when projects would
feel the crunch.
At the Prospectors and Developers Conference in early March in Toronto,
junior miners and developers also said tight labor was rapidly worsening, and
likely to accelerate costs, squeeze margins, and threaten some projects.
Cliffs got a taste of the crunch when it began to develop a new body of
chrome ore.
'We asked five engineering houses to bid on our project. Three of them said,
We have no resources. We can't,' she said.
Major Drilling (MDI.TO: Quote, Profile, Research), a mine driller
specializing in difficult locations, was surprised by the rapid ramp-up of
demand for its services so far this year, comparing it with the swift slowdown
of late 2008.
Though Barrick Gold (ABX.TO: Quote, Profile, Research) Chief Executive Aaron
Regent did not think the recent pick up in mining projects was en par with the
breakneck pace of 2008's boom, he said, 'It's obvious that things are heading
up.'
Right equipment options help a company economic ups and downs
In these economically challenging times, it's more important than ever to buy
equipment wisely. The right equipment can help your company weather economic ups
and downs, but a bad purchase can hurt your ability to compete. It's crucial to
analyze the pros and cons of each purchase, including the potential return on
investment. In fact, buying new equipment may not be the best option; it may be
wiser to buy used equipment, lease or rent, or to avoid acquiring machinery
entirely.
Making the right equipment purchase
Be sure you have answers to these questions before you buy. Avoid being
influenced by aggressive marketing campaigns that make unrealistic claims about
technology or equipment. Every business reality is different.
Be innovative
In today's competitive business world, being innovative in everything you do
is a key to success. Innovation is really about responding to change in a
creative way; one way to do so is by acquiring equipment or technology that
helps you improve your efficiency. For instance, your new equipment might help
you streamline your operations and create better products and services that
appeal to a niche market. New technology might also be useful in your research
and development efforts or in improving customer service. Above all, you want
your customers to know that you're investing in innovation; it's a clear message
that you have their evolving needs in mind.
Know your financing options
Every method of financing has advantages and disadvantages, so carefully
evaluate each option. The factors to be considered vary from one company to the
other, depending on your company's credit record or line of business.
Think safety first
A healthy and safe work environment means your employees and your company can
be more productive, and this rule applies to your equipment and technology
purchases as well. Your suppliers are responsible for selling you equipment that
can be used safely, but you are responsible for ensuring that your employees
follow safety rules. For more information, visit Workplace Health and Safety, a
site run by Human Resources and Skills Development Canada.
Keep it green
When purchasing equipment or technology, be sure that it's energy efficient.
Not only will you be saving money, but you'll also be contributing to the health
of the planet. Research the environmental impact of your new equipment. Find out
how to dispose of your existing equipment in a way that minimizes its negative
impact on the environment.
In flourishing used market how to select used mining machinery
Interested in saving money on a backhoe, loader, jaw crusher, sand maker or belt conveyor?
Sometimes, buying used mining, construction or heavy equipment is a smart way to
go and makes sense. Other times, you'd be better off going home empty handed.
Here are a few ways you can make sure you get a good deal on used construction
equipment.
Look carefully...
Go over the used equipment you're investigating slowly and carefully. New
paint jobs are relatively cheap and can cover up a lot of problems. Look for
evidence of rust patching or cover-up poke suspect areas with a tool to be
sure. Check underneath the vehicle for evidence of leaks. Inspect hoses and
valves before and after the test drive, so you easily spot fresh leaks.
... but use all your senses
When you're testing out used construction equipment, don't go by your eyes
alone. Listen to the engine and the hydraulics as you're testing it out is the
machine straining more than it should? After it's been running for a while, are
there any smells of burning oil or electrical problems? Do the controls feel as
responsive as they should?
Review Maintenance Records
Most users keep a history of all the maintenance repairs performed to the
equipment. Many log hours against the actual components and requesting these
would be very prudent and helpful for your assessment. Engine hours may differ
from hours on hoist cylinders or tracks for example so understanding the life of
components will help you determine fair market value.
If possible, buy from established companies or dealers
You are much more likely to have problems if you buy used construction
equipment from individuals or a business that does not focus on construction or
mining. Mining Machinery companies have several advantages when it comes to used
equipment:
a.They have a reputation in the industry;
b.They know that if you're buying used equipment now, you're likely to need
more equipment in the future and making sure you are a return client is
important to them;
c.They have regular P.M. schedules and equipment is likely to be better
maintained then if purchased from a small unknown company;
d.They're better able to inspect and repair any potential problems with the
equipment as they have the staff on hand to maintain the equipment;
With these tips in mind, you should be able to find a used piece of
construction equipment that can still get the job done.
New trading way for used mining equipment - Online equipment portal
Nowadays, IT industry is getting stronger and stronger which stimulates the
innovation on trading models. Online business is more and more popular. Even
heavy industry such as mining machinery (jaw crusher, sand washer, flotation machine,
concentrate table) can be sold through the internet especially for used mining
equipment.
Use a reputable online equipment portal that ranks high with all major search
engines. For example, Google 'used mining equipment' and find a high ranking
portal.
Take digital pictures highlighting areas of the asset you would want to see
if you were the buyer.
If applicable, collect the maintenance history and the equipment/component
hours.
Record the make, model, serial number and any other equipment
specifications
Determine a selling price. If you are unsure of the market value of your
asset you can pay for an appraisal, request a free one from the OEM dealer, and
surf various internet portals reviewing sales history or asking prices of like
or similar assets. Reviewing the original purchase price documentation will also
help you ascertain a bench mark.
Post your assets using content rich relative keywords. In real estate it is
location, location, location, with mining equipment it is details, details,
details which will ensure you generate quality leads which will result in a
sale.
Mining machinery on peak and transition to Mechanization
In the current environment, economic development demand for energy is more
urgent than ever before, and the needs of a mine construction and crusher mining
equipment market climax of 'hot' particularly noticeable.
In the national stimulating domestic demand policy, under the support of most
of the enterprise take the structure adjustment, strengthen the competitive
power of characteristic advantage industry at home and abroad, and constantly
open up the market, prompting juki industry is still maintained a fast and
steady growth.
Since always, coal-based China's energy structure decides the construction of
large coal mine, and now the government thought in an unprecedented attention
high efficiency and energy saving of the environment, construction of large
open-air coal mine will be China's energy construction point one of the
development direction. As countries to strengthen the construction of the mine
resource efforts, the boom of the mining construction is to mining equipment all
big manufacturers to provide a good market opportunities. China's mining
equipment production enterprise, such as crusher enterprise, but also are taking
measures for the mining construction cake to share more share.
The current our country in the south in coal mine enterprises mechanization
level relative low some, but on the whole, mining machinery large compound
mining equipment will be even more widely used. Mining machinery technology
equipment level of ascension, will promote the modernization of the coal mine
enterprises, improving continuously, m&a continuously strengthen production
safety. Mining machinery is on peak, China coal resources integration, not more
of the marketing of the like confined in the provinces within. It is more
advantageous to the coal enterprise m&a gain greater development.
Year 2012 Hongxing people inherit the past and usher in the future
Year 2011 is at the tail, followed by 2012. Here we look back into the past
and forward the future.
Aiming at the international advanced level, creating famous brand product, mobile crusher is the
Henan Hongxing mining machinery Co., LTD conflict of the ascension of new and
high technology products for construction waste to deal with mobile crushing
stand market share in the important means.
In 2008, Henan Hongxing mining machinery Co., LTD. takes the lead in
developing the construction waste disposal mobile crushing stand, become broken
machinery industry and the focus of rookie. At present, the mobile crushing
stand has been widely used in the metallurgy, chemical industry, building
materials, water and electricity, and so often need to move operations,
especially in processing materials for the highway, railway, water and
electricity engineering, construction waste treatment of homework, users
liquidity stone according to the type of raw material processing, scale and
finished product material requirements of the use different configuration forms.
The advanced technology of construction and convenient work mode is capable
machine movement broken occupy the important power station market.
Construction waste standing is the world move broken on production stable,
the efficiency higher new environmental protection crusher, has become the
backbone of mining machinery products, and to promote our country mining
machinery industry to international development has a profound meaning. 'Our
main Hongxing machinery company relies on the technique is known, the use of our
equipment users know our equipment factory equipment than our other more long,
more stable, more efficient and more energy, more environmental protection. Our
new product on the market is simpler mobile crushing, have a lot of new and old
customers to buy the phone, now our sales order has been arranged to the second
half of 2012. We enterprise innovation and development is inseparable from the
needs of customers, and the mobile station to produce more of the broken with
the development of The Times and social development', in the face of remember
visit Hongxing, machinery sales system lee director said.
The reporter understands, since 2001, Henan Hongxing mining machinery Co.,
LTD. Does the enterprise development and social development and the market
demand closer together, this almost 'great leap forward' in the market economy,
the conflict of the mechanical company followed era pace Hongxing, practicing
skills but steady development. In order to improve the Hongxing machinery
company production, stable quality as the goal, further optimize enterprise
crusher, the sand machine, mobile crushing stand and construction waste
treatment equipment and so on the new and old products of the production,
process, raw material structure. Wilson, director of sales Hongxing recalled,
technical personnel from strengthening production workshop work patterns,
standard production line process and configuration, eliminate the workshop
manufacturing process fluctuations take measures to promote the production line,
security, stability, long period, full load operation. The output of products
and quality level rising, further improve the product technology. 'Mechanical'
brand Hongxing crusher, the sand machine, mobile crushing stand and construction
waste disposal equipment market share gradually expand, become our country
mining machinery industry within the new benefit growth point.
'We produce 'Hongxing machinery' brand stand and construction waste mobile
crushing equipment, such as processing of quality indexes in general have caught
up with the international advanced level.' Lee director said.
The mobile crushing
station set is expected, broken, delivery of process equipment for one,
through the optimization of process make it has excellent rock broken, aggregate
production, open mining operation properties, and can be broken by different
type of joint, compose a powerful broken line, complete homework more demand
processing work. Its advanced design, good performance, high production
efficiency, convenient operation and maintenance, operation cost, stable,
reliable, economic relative to production line is concerned, mobile crushing a
can move like standing of small and medium-sized broken, its work efficiency and
processing operation cost is better than at the same level or higher level of
the sand production line.
Suposing the pillar of the future mining machinery industry
According to existing information, the gross industrial output value of the
metallurgical mining machinery industry in China has reached 177.993 billion RMB
this 1 ~ 6 month, increased by 24.95% compared with last year.
Automatic,large-scale technology and energy-saving technology of the crushing
screening equipment will be the key topic of research in crushing equipment
manufacturing enterprises in the future. Mining crushing screening equipment is
the important equipment in the industrial raw material and energy production,
and the improving efficiency will be the important part of energy saving and
resource saving.
With the closing of the large number of small metallurgy,coal mine and cement
enterprise, large new concentrator, coal and cement plant were generally
built, which means the higher request of the washing and dressing equipment was
raised. The equipment of great processing capacity, high crushing screening
efficiency and reliable operation is in urgent need.The common used crushing
equipment includes mobile crusher, cone crusher, jaw crusher, impact crusher,
vertical impact crusher, vibrating
screen, sand washing
machine, vibrating
feeder and so on.
The crushing equipment of Henan Hongxing Machinery adopts domestic advanced
technology and the SMH series hydraulic cone crusher has been
developed combined with the actual situation of the developed sand industry
which is also the most desirable.This kind of crusher has the characteristics of
big capacity, low energy consumption, so it is welcomed by domestic and foreign
customers. The structure of cone crusher is composed of main parts of frame
body, adjusting devices, adjusting cover, crushing cone, transmission and
eccentric cover and so on and the auxiliary parts include electric, lubrication
and so on. And it is applicable for the ore and rock of smaller pullman's
hardness in more than 5-16 f. It is also the best choice of the upgrading in
domestic mining machinery industry.
Micro fiction on the relationship between Mining and Human being
Man is a curios animal. Human being has seen thousands of centuries and had
evolved ever since. History is one of the most interesting branches of study. It
tells us how we have come to our present state. But history without any evidence
can very well be nothing but just a piece of fiction. One of the ways that
validates history and its findings is through mining. Mining is not new to
humankind. Since the beginning of civilization, man has used the metals and
stones found closer to the surface of Earth for various purposes. As time and
technology progressed, mining also became wider and more extensive.
Now we have top of the line machinery for mining that has made the work quite
easy and much more productive. Now we know about the ancient civilizations more
than ever. In addition, mining is mainly used for extraction of minerals,
stones, rocks of various degrees of importance. From precious metals like gold
and platinum to stones like diamond, rubies, sapphires etc. everything is
obtained from mining. Not only precious stones and metals, mining gives us many
metals and stones that are used in machinery and various industries. We
obviously cannot visualize a world without metals.
Few of the materials that are obtained by mining are base metals, precious
metals, iron, uranium, coal, diamonds, limestone, oil shale, rock salt and
potash. Rather any material that we cannot grow by agriculture or create in a
laboratory or factory is usually mined. With the extensiveness in mining, there
is obviously a whole industry dedicated to mining equipment and mining
supplies.
There is a plethora of geology outfitters and field equipment that is used
during the various mining processes. One of the basic requirements of good
mining gear is the durability. As mining is always outdoor and can be in severe
weather conditions, it is necessary that the mining gear used should be able to
withstand all kinds of weather conditions. The sturdiness of the clothing
material is of great importance and so is the high visibility. Even rest of the
equipment needs to be weather proof and efficient.
Geological Surveying is the perfect destination if you are looking for
geology outfitters and field equipment. They have the highest quality of
products at the best of prices. The mining supplies at CGS Mule are made with
superior quality materials that would never fail you and deliver the best.
Hot sale from Hongxing Complete set of Cement production line
Cement production line is
to build cement clinker production line in mining areas, and build cement
grinding station near large and medium-sized cities (i.e.Ore spiral classifier cement
sales markets). Most cement mixed materials are industrial wastes produced in
cities. A cement grinding station can greatly digest the slag, fly ash, cinder,
coal gangue and other industrial wastes near cities, which is also a green and
environmental industry. The cement grinding station supplied by our company has
the advantages of the simplest process, the most convenient operation,Limestone dryer the fewest
process equipments, less investment, less power consumption and so on.
During the whole cement production line, drying and powder-choosing is the
most important steps!!! Dryer is the main cement mechanical equipment in the
drying step. Here we mainly explain the grinding step. For this step, cement ball mill is the essential
equipment.
A cement ball mill is mainly used in the grinding of finished products and
raw materials, and also used in metallurgy, chemicaConcentrator table
pricel, electric power etc...In addition, open flow grinding and
close-circuit grinding with powder concentrator are available as well. Cement
ball mill has the advantages of strong adaptability to materials, continuous
production, big reduction ratio, simple fineness-adjusting and soCement rotating dryer
on. It is capable of dry production and wet production, also can grind and dry
at the same time. After drying, raw materials processed by cement mill will turn
into raw cement. Then we are going to use an important product in cement machineryCement rotary kiln. As
we all know, the cement processed by cement mill is raw, in other words, after
water&rsCone crushersquo;s
mixing, cement is still cement, and water is still water. Both of them cannot be
mixed together. So here we make raw cement processed by cement rotary kiln, in order
to get the cement of semi-finished products.
Why do we say its semi-finished? Because the cement processed by cement mill
cannot turn 100% raw material into powder, we need to screen these semi-finished
products and make those raw materials which still dont turn into powder return
to the production line for processing.
So far, cement production line is running to the end. Of course, in the whole
production line, the role of conveyor is indispensable. Whether raw materials
enter into the dryer, and then the dryer enters into cement mill, or cement mill
enters into cement rotary kiln, which both use the conveyor.
High pressure micro-powder grinder stretch out Grinder's neck
High Pressure Micro-powder Grinder is suitable for grinding the regular
material, such as feldspar, calcite, talc, barite, marble, limestone, ceramic
and other non-flammable non-explosive materials with Moh's hardness below 4, and
humidity less than 8%. The final products can be adjusted between 500mesh
(25micron)-2500mesn (5micron), the finest size can be 3500mesh (3.55micron).
New type grinding machines are designed and manufactured by Henan Hongxing
Mining Machinery Co., Ltd. Its known to us that there are lots of fields need
to crush and grind materials such as mining, metallurgy, construction and so on.
All the materials should be grinded and crushed from big one into fineness
according to customers' requirements.
As we all know that grinding cost too much both in energy and money. Since
then how to improve efficiency of grinding is one biggest problems.
Crushers are mainly used in many fields such as construction, mining and so
on. However most of such kinds of equipments have various of disadvantages such
as maintenance, capacity and so on. Features of High Pressure Micropowder
Grinding Mill:
a. Energy-saving
b. Wide Application Range
c. Good craftmanship
d. Powder Fineness: <6.5um~<12.5 um
e. Three-dimensional structure
f. Centralized control for the electric system, convenient to operate
Hongxing blaze a new way in sand production technology
Nowadays, it is the information & technology times, and all new products,
new technology, and new things are coming out. The complete sand production
line, quartz sand production line, building sand production and building Stone Production Line are made of
Jaw Crusher, Impact Crusher, vertical Shaft
Impact Crusher (Sand Making
Machine) Vibrating Screen
(Circular Vibrating Screen) , Sand Washing Machine
and Belt Conveyor. After
configuration with suitable equipments according to the different requirements,
it can exert its best performance.
Stone is carried on the preliminary to be broken by machine (jaw crusher,),
the production of it is transported to the impact crusher (or fine jaw crusher)
to further break and transported by belt conveyor. The broken stone then access
the vibrating screen, which then divided into two sizes of stone. The stone that
meet the granularity of Sand Making Machine is delivered into the sand making
machine and other parts returned again to be refined. Parts of the stone in sand
making machine will be made into sand, and produced into end production after
clearance. The other parts will be delivered into sand making machine to be
broken again, and produce each kinds of sand conform to requirements
ultimately.
The Production line has the advantages of high automation, low running costs,
high broken rate and energy saving, large output, less pollution, simple
maintenance. It produces the machine-made sand in line with the national
standards of construction sand, and the granularity is even, the grain shape is
good, the gradation is reasonable.
As we know, if a person is sick he needs to see a doctor in a hospital where
someone will tell you what's wrong with you and make an analysis for you.
Similarly, how to analyse the possible problems when a jaw crusher can not
crush normally? Let's be a doctor.
While using the Jaw Crusher, there might be problems happening, despite we
edged to avoid such kind of suitation. But there are many problems which can be
fixed easily. Here is a solution for the problem: the flywheel rotates but the
jaw crusher can not crush, the toggle plate falls down.
Possible reason 1
The spring at the back botttom of the jaw crusher break. We can solve this
problem simply by replacing the broken spring with a good one.
Possible reason 2
The jaw bar is broken. Maybe while the jaw crusher working, something
extremely hard has fallen into the crushing chamber. And the jaw crusher can not
break it down(we kinly remind our users to avoid such accident in daily
production, for it will do great damage to the machine). In this case, the jaw
bar would very likely to be damaged. We need to put a new jaw bar into the right
position before the crusher can work normally.
Possible reason 3
The jaw bar bolt is loose. Just fasten the bolt on end of the jaw bar would
solve this problem.
Eying on malfunction analysis from mechanical construction of a Jaw crusher
Jaw crushers are
equipments which can coarsely and intermediately crush several hard materials by
the press and bend of the two Jaw plates. It consists of fixed and movable Jaw
plates. When the both plates close to each other, the materials can be crushed,
and when separate each other, the smaller materials than discharging open can be
sent out on the bottom, the action of crushing is intermittent. The equipment is
widely used in industries such as mining-selecting, construction materials,
silicate and pottery, because of the advantages of simple structure, reliable
operation, crushing hard materials.
Main engine suddenly stops.
The output can't reach original factory standard
Reasons:
1) The hardness or endurance of materials go beyond the range of instruction
book
2) Electric motor connects inversely, the main engine works opposite (Jaw crusher rotates clockwise)or
the electric's triangle connection is replaced by star connection by
mistake.
3) Discharging open is smaller than specified limits
4) Jaw plate moved, the tops of the teeth opposite each other.
5) The voltage of working space is too low
6) Movable Jaw plate and bearing are wear off that the break is too large
that the outer ring of bearing comes into relative rotation
Repairing methods
1) Replace crushing material or crush once again.
2) Adjust the motor connection
3) Adjust discharging open to adapt the instruction book and increase the
machines used in tiny crushing
4) Check the distance between dental plate and pitch of gear, if not match
the instruction book, replace the Jaw plate, adjusting the relative places
between fixed and movable Jaw plates make sure that top of the tooth face the
tooth root, then fixed in case the shift
5) Raising the voltage of working space to adapt the demand of main
engine.
