Discuss industry trends crusher

China Jaw Crusher history of the development section, after a long practice requires appeared jaw crusher, hammer crusher, impact crusher, impact-type third-generation Sand and Sand.
Eighties of last century's machinery industry is still in the low period, when economic development is at a relatively steady state, are catching up with the development of China's economy flat, in general machinery industry has a cyclical development, generally Ten years is a cycle, the compliance with the order is from the early development of the industry gradually to the peak periods of peak period is over, and gradually the low period of the machinery industry. This development cycle is always the same, and it is not change.

Jaw Crusher and economic development of the industry is closely related to the chain. China's economic development since the eighties from the beginning to the momentum of rapid development of open, no matter which industry, including highway construction in China's railway construction, and real estate development, mining, water industry in the rapid development, with their promote the development of an economic industrial chain, repair to highway use of cement, gravel, sand, etc., which ushered in the mining, sand and gravel industry, the rapid development of the peak, while the production of sand and gravel mining and use to broken equipment, broken machinery so that the gradual development of the industry into the peak.

PE compound pendulum jaw crusher series dealing with the compressive strength of not more than 250Mpa function of the ore or rock, with a broken ratio, product size uniformity, low power consumption and easy maintenance. Metallurgy, mining, building materials, transportation, machinery and other industries ideal crushing equipment.
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Jaw Crusher development of the industry and to promote the development of steel industry accelerated the development of each industry are closely related with the industrial chain. In the crushing machinery industry entered its peak, crusher market is also very, very hot, because at the time, local government departments on the supervision of mining is not large, some private individuals to see the huge profits of mining mining industry. So at that time almost overnight, the local small-scale mining plant are to take out, so the sale of mining equipment at the time the form is very hot, resulting in a situation of short supply of mining equipment industry, situation, or even customers to the plant inside, as long as I saw a device, immediately to buy back the production, do not care about the quality of work product. So that is the crusher peak of development of the industry, but also the peak mining industry. However, the peak period in the machinery industry, the problems are caused by many, not just the enterprise itself, as well as government departments at all levels of management in a loose state. So whether the development is low during the peak period, we still have to look long-term release.

Jaw crusher maintenance

(A), the preparatory work before moving over
1, small check is good lubrication of bearings, bearing plates and elbow joints have enough grease.
2, should carefully check all fasteners are securely fastened.
3, check the drive belt is good, found a broken belt shall be updated with the phenomenon.
4, check whether the ore crushing cavity or other debris, if debris should be removed to ensure that the machine no-load start.
5, check whether the bolts from the top to return, gasket compression, T-bolts are tightened, should be noted that non-crushing machine at work from the top bolt and adjust the seat contact.
(B), the start crusher
1, the checks to prove that part of the machine and drive the situation properly, before they can start.
2, the series crusher can only start with no load.
3, the start, we must use a bell or other signal prior notice.
4 starts, if found to have abnormal situation, should immediately stop operation, to identify and eliminate abnormal situation, only to restart the crusher.
(C), use and maintenance of crusher
1, crusher normal operation only after the feeding began.
2, the crushing of materials should be uniform to join the crushing chamber, the side feeding should be avoided or filled with feeding, to prevent overloading or under unilateral overload.
3, under normal circumstances grinding mill, the bearing temperature rise of not more than 35, the maximum temperature does not exceed 70, as more than 70 should be immediately shut down, find out the cause to be removed.
4, stop, you should first stop feeding the work material to be broken completely discharge chamber was broken only after the turn off the motor.
5, in broken when, if the issues caused by broken cavity stop blocking material should be immediately shut down the motor, the material must be removed only after the restart.
6, tooth wear plate at one end, you can turn around to use.
(D), crusher lubrication
1, the constant attention and lubrication wear a timely manner, can guarantee the normal operation of the machine and extend the service life.
2, the grease used crusher, according to the use of the machine temperature, location and other conditions to decide. General use of calcium-based, sodium or calcium sodium based grease.
3, add bearing grease to 50-70% of volume, stone crusher must be replaced once every three months, for grease application of clean gasoline or kerosene, carefully cleaning the roller bearings.
4, elbow pads touch plate and bracket, the machine must be filled in the grease before starting.

Ten year trends in the development of mineral processing equipment

Through the combination of mechanical plant on-site observation of dynamics grinding mill, ball mill found in the actual production of coarse there is a reasonable position phenomenon, is now thrown down on the ball mill grinding body type and material movement trajectories and between force analysis, and explore the causes of this phenomenon. Found that the feed mill at the feed point selection device exists unreasonable. Thereby reducing the ball mill grinding efficiency and increased consumption. So in order to optimize the feeding device, to improve the irrational, the need for improvement of the feed point.
Improved mill feed inlet design
In recent years, as new technologies, new technology continues to improve, when the output of Taiwan ball great changes have taken place, with the specifications of the raw material open and closed-circuit grinding mill table and more than double the yield difference. Into the grinding particle size reduction, increased mill ventilation, to improve the mill's output, quality played a key role. To improve the mill ventilation, many factories have been made in this great effort and exploration. Set in the grinding mill to increase the blast and the combination of the end of ventilation, received a good effect, but correspondingly increases the energy consumption of the fan tail mill dust collection system with treatment difficult. Therefore the most effective way is to improve the feed inlet.

First, the device integration trend. As the number of modern dressing products and product objectives increasingly demanding taste. Therefore, when the selection of equipment manufacturers of crusher, prefer complete production line, due to the production line equipment for other equipment is optimized, can improve production efficiency and ease of manipulation.
Second, the process of localization trends. With the domestic research level, the recent patent application processing equipment significantly more emphasis on the support of their research results. Well, this will also encourage excessive scientists, mineral processing equipment for China to catch up with the world interested in the contribution to the advanced level.
Third, the device intelligence trends. As more research institutes, new thinking and new methods developed, and a variety of intelligent control theory applied successfully in other industries, with more advanced intelligent processing equipment manufacturers in the laboratory for debugging. I believe in the near future, a large number of new products will be filled with the intelligent processing equipment market.
Fourth, the production process of the trend. For a modern mineral processing nearly 40 years of experience, the major equipment manufacturers have begun to consider custom expert system for the entire production process customized for different geographical environments the most reasonable solution.
Five semi-automatic welding trend. This technique mainly for mineral processing equipment in contact with highly corrosive materials in the machine. This can reduce the oxygen by the application of welding, the use of new solder can improve the durability of the equipment 50% -75%.
At the control simple trend. In recent years, manufacturers of equipment to facilitate rapid application in the production line has been gradually integrated one-touch control, even if the manufacturers do not have professional machine control temporary staff can be achieved by simple control production. This is an expert on technology of enrichment.
VII, green energy trend. Since early this year after the Copenhagen conference, jaw crusher world leaders at the summit has made commitments. The industry is now the state will take measures to reveal excessive production of electricity industry to adopt more stringent environmental control. Then, using advanced technology applications of green energy-saving products selected will give a better chance of survival plants.
VIII, manufacturing orders trend. In the past, device model, performance, and more fixed, firms tend to have a certain stock. The specific customer needs at this stage because the increasing refinement of compounds, a direct result of manufacturing companies have to pursue the theory of the nominal zero inventory efforts.
September, equipment form the trend in Europe and America. In the experience of other countries, advanced manufacturing technology, shape of the device technology, the shape of the design of mineral processing equipment will gradually move closer to Europe. The new shape design can often make the customers more choice and want to try, long-term view, conducive to the overall development of the field of mineral processing equipment.
Ten, the device large-scale trend. Mainly for ball mill, the state has explicitly introduced the policy to terminate the 3.5m diameter of the end of the year following the production of small ball. This will inevitably lead to the manufacturers in order to seek development and survival, and have a higher technical difficulty of the new trial and a large mill.

Sandfire seeks $102M for DeGrussa

SANDFIRE Resources has come back to the market to raise $A102 million to accelerate development at its DeGrussa copper-gold project in Western Australia after its share purchase and offtake deal with Korean smelting giant LS-Nikko officially keeled over last month.

The funds will be raised via a 1 for 12 accelerated non-renounceable pro-rata entitlement offer at an offer price of $6.60 to raise around $72 million and will consist of an institutional component and a retail component.
The entitlement offer price represents a 15.2% discount to Sandfire’s closing price on Monday.
Sandfire will also launch an underwritten institutional placement to raise a minimum of $30 million.
The proceeds of the raising, as well as Sandfire’s existing $35 million in cash resources, will go towards completing the current pre-feasibility study, scheduled for this quarter, and the definitive feasibility study, scheduled for the end of the first quarter of calendar 2011.
Funding will also go towards other predevelopment and infrastructure activities required for DeGrussa as well as completing the approvals process.
Funds raised will also be spent on pre-stripping of the initial open pit which is targeted to begin in the second quarter of calendar 2011, as well as for deposits on key long-lead items required for the proposed 1.5Mtpa concentrator and for working capital.
Sandfire managing director Karl Simich said after considering funding alternatives with corporate advisor Goldman Sachs, the entitlement offer and placement was considered the best option for shareholders.
“Firstly, it facilitates the introduction of new Australian and international institutional investors to the company’s register while allowing existing shareholders to participate on attractive terms,” he said.
“Secondly, it enables the company to complete a DFS and enter into project funding discussions in a strong financial position and with the ability to commence development of the high-grade open pit resources at DeGrussa while construction of the plant and underground development commences. This will ensure that we are able to commence copper-gold production in a timely manner.
“Finally, it ensures that we can maintain our robust exploration activities at DeGrussa, both within the 6-kilometre long near-mine corridor and, more broadly, within our 400 square kilometre tenement position, where we consider there is potential for additional new discoveries.”
Recently, the company announced plans to increase the targeted design throughput rate for DeGrussa processing facility to 1.5Mtpa following a phase 3 resource upgrade to 10.67 million tonnes grading at 5.6% copper, 1.9 grams per tonne gold, 15gpt silver containing 600,000t copper, 660,000 ounces gold and 5.1Moz silver.
Sandfire expects to announce a further update to the resource inventory later this month after completing infill drilling and a revised resource estimate for the dispersion zone of the near-surface oxide copper.
Today’s capital raising news comes after Sandfire announced last month its share purchase and offtake deal with Korean smelting giant LS-Nikko was effectively over.
Shares in Sandfire are in a trading halt that is expected to last until the release of an announcement or the start of trading on November 18.
Prior to entering the trading halt, Sandfire was trading at $7.78.

China Mining equipment CO.,Ltd is a professional manufacturer of mining crusher equipment and industrial grinding mill in China.
Mian Site: http://www.ucrushers.com
product list:

mobile crushing plant,raymond mill manufacturer,vertical roller mill

All aboard Brockman 4

AN on-location look at Rio Tinto’s billion dollar modern mine, set to centralise its existing and future Pilbara operations and double iron ore output as it continues to expand. By Brooke Showers

Brockman 4 is the latest addition to Rio Tinto’s iron ore mining operations in Western Australia’s Pilbara region.
The $US1.5 billion mine was opened by Parliamentary Secretary to the Premier, Treasurer and State Development Minister Helen Morton MLC and Rio Tinto chief executive iron ore and Australia Sam Walsh.
Located 60 kilometres northwest of Tom Price, the mine is expected to have an initial output of 22 million tonnes per annum of high-grade iron ore with the potential to expand to 40Mtpa.
With a 30-year mine life, Brockman 4 is also ideally positioned to serve as an infrastructure service hub for the future development of nearby deposits.
“As we have made clear recently, growth in our Pilbara iron ore operations is back on the agenda and Brockman 4 features significantly in our future plans,” Walsh said.
“The mine has been planned very much for future expansion to double the initial capacity in mind, and we would expect that additional tonnage to form an important component of our planned expansion of Pilbara capacity to 330 million tonnes per annum.”
The mine workforce has 530 full-time employees, of which 16% are female and 8% are indigenous – both figures that Walsh intends to increase. He said Brockman 4 had attractive working conditions, including an 8 and 6 roster.
The camp facilities are first rate, a growing trend at many remote minesites. Brockman 4 has a swimming pool, fitness centre, tennis courts, wet and dry mess, and a netted enclosure to polish up the golf swing.
It has 1000 dongas, all including a phone, plasma television, fridge, air conditioning, spacious shower and vanity unit.
There are two different locks on the drawers and wardrobes, so employees can secure their personal items onsite while at home on a break. This allows each donga to be shared by two workers on opposing rosters.
Utilising the latest equipment, Brockman 4’s open cut mining operation hosts three 500t Hitachi shovels, a 350t Hitachi excavator and 15 Komatsu 830E 220t dump trucks.
Supporting infrastructure onsite includes a fixed plant maintenance workshop, tyre and light vehicle maintenance facility, and integrated process and potable water systems.
It has a two-stage dry processing plant, including primary and secondary crushing, sample stations and train load-out system.
The anticipated daily movement of materials is 160,000t and Rio Tinto expects to load 20 trains per week, linked by the 50km rail network.
The hub model has the potential to align all the Rio Tinto mine operations into one central train system for ship loading.
“Mesa A/Warramboo and Brockman 4 demonstrate our strategy of substantial investment in high-quality, long-life, low-cost assets,” Walsh said.
“They are outstanding deposits, close to existing infrastructure, and each promises excellent commercial returns.”
Brockman 4’s pit designs are expected to yield about 600Mt of high-grade ore of more than 60% iron and 450Mt of a lower 50-60% iron grade, which will be stockpiled for future processing.
Rio Tinto also has studies underway to take its Cape Lambert port from 80Mtpa to 180Mtpa to help bring its Pilbara total to 330Mtpa.
The company also will have five new mines or mine expansions to meet capacity.
Walsh expects the free on board price for iron to drop 13.3% in the December quarter of this year to $US127 per tonne.
Brockman 4 has land-use agreements in place with traditional owners, the Puutu Kunti Kurrana Pinikura and Eastern Guruma people.
Rio Tinto is committed to having all employees in WA complete cultural awareness courses with Aboriginal leaders to strengthen the company’s understanding of Aboriginal people.
The company has created better ways to support its Aboriginal neighbours in the workplace through this knowledge.
The strategy for Rio Tinto to focus donations into four key areas – education, health, the environment and culture – has helped the company address issues facing the community. In 2009 the company contributed $27.8 million in community investment activities in WA.
Brockman 4 has a swimming pool, fitness centre, tennis courts, wet and dry mess, and a netted enclosure to polish up the golf swing.

China Mining equipment CO.,Ltd is a professional manufacturer of mining crusher equipment and industrial grinding mill in China.
Mian Site: http://www.ucrushers.com
product list:

mobile crushing plant,raymond mill manufacturer,vertical roller mill

Iron ore chauffeurs

YOU know iron ore is hot when a limousine company tries to roll over a couple of Pilbara wannabes. But what is the latest Chinese interloper driving at? The Metal Detective by Stephen Bell

Hong Kong-based Wah Nam International achieved several firsts last week when it unveiled separate scrip bids for Brockman Resources and FerrAus. It wins a prize for corporate diversification.
Wah Nam does own a copper mine in southern China, but its core business seems to be offering limousine and coach services from Hong Kong airport.
So a multi-billion dollar plunge into Western Australian iron ore mining and infrastructure is a bit of a U-turn.
Another first is the volume of paper involved in the bid.
Wah Nam has 3.9 billion shares on issue, valuing the company at $6.7 billion Hong Kong dollars, or $A870 million.
According to its offer document, it may have to issue up to 4.5 billion more shares if all options in Brockman and FerrAus are exercised and the offers succeed.
The notional $1.2 billion bid value is way more than Wah Nam’s current market capitalisation.
Yet the company talks confidently about consolidating Brockman’s and FerrAus’ projects and potentially building a transport corridor to Port Hedland.
It is a much bigger cab ride than the Wah Nam chauffeurs are used to.
A ride in a Mercedes Benz limousine from Hong Kong airport to Kowloon Bay, a distance of roughly 40 kilometres, will set you back $100.
It is around 300km from Brockman’s Marillana deposit to Port Hedland and the tab for a new railway is $3-4 billion – pretty big money for a small conglomerate.
The Metal Detective can only assume Wah Nam is a stalking horse for Chinese steelmakers and infrastructure groups – the most likely funding sources for such a big infrastructure play.
MD also quite likes the theory that the offer may be a clever ploy designed to flush out third-party bids.
Given that Wah Nam already holds 19% of FerrAus and 22.6% of Brockman, that scenario may deliver it a nice trading profit if the likes of Fortescue Metals Group were to enter the fray.
Credit Suisse notes that FMG’s recent refinancing lifted the merger and acquisition restrictions associated with its 2006 senior notes covenants.
“The new notes allow FMG to be more corporately active,” it says.
Although FerrAus and Brockman currently own stranded deposits, the broker says it would be “amazed if FMG has not already had serious discussions with Brockman and perhaps FerrAus too regarding possible BCI-style infrastructure access JVs”.
Longer term, the bank sees a risk that FMG’s Chichester projects will not reach their 90 million tonne per annum target, meaning that the shortfall could be made up with additional ore from projects such as Brockman/FerrAus.
As it stands, MD can’t see many Brockman and FerrAus punters jumping at the chance to swap their investments for wads of limousine-backed Hong Kong paper, even if Wah Nam is promising a listing on the Australian Securities Exchange down the track.
If nothing else, it illustrates China’s keenness (or should that be desperation?) to snaffle independent Aussie iron ore resources, no matter how large the hurdles.
One reason may be that the Asian Dragon sees continued tightness in the market ahead.
Recent work by Macquarie suggests that supply-side iron ore growth is set to underperform relative to stated plans in coming years.
Thus, the long-feared market surplus may still be some way off.
“There is a huge volume of potential supply on paper, but myriad issues commonplace to the industry are likely to cause significant delays,” Macquarie said, citing problems such as infrastructure, environmental permitting, spiralling capital costs and the “disinclination” of equity markets to finance projects.
As a result of delays and the “degradation” of Chinese mines, increased volumes of higher cost Chinese domestic ore are required to balance the market for longer, the bank says.
Cost inflation in the Chinese domestic industry is thus key, and “we think marginal suppliers will keep the average spot price well supported above $US135 per tonne during 2011-13”, it said.
The other interesting angle to Wah Nam’s bid is the effect on the North West Iron Ore Alliance, of which Brockman and FerrAus are members, alongside Atlas Iron.
The obvious question is why didn’t Wah Nam bid for Atlas?
It is not as though Atlas is a lot more expensive – its market cap is $A1.6 billion – and it is already in production.
Perhaps Atlas is part of another yet-to-be-unveiled Chinese gambit, perhaps involving Ridley and/or Balla Balla magnetite.
Apparently it is business as usual at the NWIOA as it seeks to finalise the feasibility study on its $2.1 billion port at South West Creek by early next year.
The ultimate aim is to start shipping from the new port, which is critical to Atlas’ long-term growth ambitions, by 2013.
Even before the bid lobbed, that target was seen as highly ambitious by most in the industry, given the amount of environmental permitting and construction involved.
Industry insiders believe that 2014 is probably a more realistic aim for the alliance’s two berths to start shipments.

Letter to the editor: Dryblower remembers Marengo and the day George Soros broke the bank

Following yesterday’s Dryblower column on George Soros and his investment in Marengo Mining, MiningNews.net has published a reader’s response to the column.

I note that reference was made to Marengo Mining Ltd in today’s edition of Mining News.
In regard to the article by Dryblower on George Soros I would like to clarify a number of points.
In September 2009 Quantum Partners LDC (a member of the Soros Group) acquired a 19.9% stake in Marengo Mining, by subscribing $A10 million to a $A22 million institutional placement, raised in both Australia and Canada.
Marengo Mining is also listed on the Toronto Stock Exchange and has been since April 2008, in addition to its listings on the Australian Securities Exchange and the Port Moresby Stock Exchange (PNG).
Marengo Mining’s Yandera Project is located in the Independent State of PNG and, as such, will not be affected by the federal government’s proposed super profits tax.
Regards
Les Emery
Managing Director
Marengo Mining
Letters to the editor are always welcome. Please keep them short. Some submissions may need to be edited.

China Mining equipment CO.,Ltd is a professional manufacturer of mining crusher equipment and industrial grinding mill in China.
Mian Site: http://www.ucrushers.com

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