Category Archive: Industry News

Saudi Arabia Dolomite Grinding Mill

Saudi Arabia Dolomite Grinding Mill plant

Material: Dolomite
Output size: 400 Mesh
Capacity: 6-10TPH
Used in: Saudi Arabia

The client used MTW138?for Dolomiteprocessing. He bought our grinding mill 2 years ago, the machines are used very nice, the production capacity is totally reached his needs, and the communication with our sales man and engineer is very smoothly.

Category: Industry News

2016 global mining industry news 2

Rwanda and Oman signed an agreement 39 million dollars in minerals

“New Age” February 10 Journal article said that Oman Lu Tri Metals Mining Corporation and Lu Lu Department of Natural Resources and the Investment and Development Agency signed three large-scale mineral agreement, worth 39 million dollars, mainly in the western province of Bisesero concession tin, tantalum, niobium and tungsten ore. Allegedly, in 2015 Lu mining industry output value of 140 million US dollars, the last four years will receive each year about 50 parts mineral concession license application.

Congo (DRC) National Mining Corporation 2016 turnover of $ 1 billion growth plan

It is just news agency reported that the Congo (DRC) National Mining Corporation (GECAMINES) plans to achieve a turnover of $ 1 billion increase production targets in 2016.
Executive Director Ahmed pointed out that the company has formulated a series of revitalization plan contains multiple items, including the implementation of the Development Bank of South Africa (DBSA) and the signing of the financing agreement and Deziwa deposit mining project Ecaille copper company signed with SOMIDEC implementation. And the company has invested $ 72 million newly discovered deposit Prospecting, the deposit area of about 7,000 square kilometers, copper reserves of 400 million tons.

Zambia 2016, 2017 copper production is expected to be flat at 700,000 tons

A senior government official said on Monday that the next two years, Zambian copper production will be about 70 million tons by 2018 will rise to 1 million tons.
The second-largest copper producer in Africa – Zambia 2015 copper production of 708,000 tons from the previous year, rose slightly to 711,515 tons, mainly due to the new Canada’s First Quantum Minerals (Canada’sFirstQuantumMinerals) ‘s out.
Permanent Secretary of the Ministry of Mines of Zambia PaulChanda told reporters: “the same level of production is expected to last as copper prices continued to slump, partially frozen mine production.”
Chanda said Zambia’s copper production is expected in 2018 jumped to about 100 million tons, then the price of copper is expected to begin to rebound.

2016 global mining industry news 1

Indian government intends to auction 100 mining concessions

According to Indian media, “Economic Times” reported on February 24, by the Geological Survey of India Inquiry Commission, the Indian Ministry of Mines proposed auction of mining rights 100, including 19 gold mines, three diamond mines and eight iron ore. It reported that the mine located in 22 states, each with an area of 100 square kilometers are.
Currently Indian mineral resources exploitation rate is only 10%, the Indian government intends as soon as possible to provide more effective policy support to the mining industry through the exploitation of mineral resources bill. It is reported that the auction will not be limited Indian companies to participate.

For the Government of Indonesia undo ore export ban

According to the February 25 “Indonesia International Daily” news, a few days ago the Indonesian government and the Congress is brewing amend Decree No. 4 of 2009 concerning Mineral and Coal, want to revoke the ban on ore exports. Indonesia’s Energy and Mineral Resources Ministry of Public Communication Director Suchanek Te Mike said that given the current market situation minerals, energy and desire to reopen the Ministry of Mines ore export channels. Currently, in the global market, almost all of the general decline in commodity prices, resulting in the company’s financial difficulties many mining occurs, resulting in not enough money to build the processing and smelter. Meanwhile, the Indonesian government must save the domestic mining companies from collapse. If for ore export ban caused by mining enterprises have ceased production, the number of unemployed will increase. In addition, the government also needs to earn income from the mining sector, therefore, ore export ban to be relaxed. Su also said that the current government is also research which mineral ore can be exported and which can not. Indonesian Some MPs also agreed to revoke the ban on ore exports.

Cuba will increase investment in the energy mining sector

According to the Latin American News Agency March 3, 2016 in Havana reported that the Cuban Deputy Minister of Energy and Mines Ministry Reuben ? Sid revealed today that the 2016 Cuban investment in the energy mining sector will be higher than last year.

Sid said that in 2015 the total investment in Cuba in the energy and mining sector was 16 billion pesos (according to the official exchange rate of $ 1 peso equal to 1), completed 94.9% of the plan, the main production tasks have achieved a higher completion percentage, only oil refining and gold and salt mining unrealized goals. Improve resource imports, scheduled maintenance and investment in different sectors, it is the key to success. Despite financial pressures and organizational issues, but imports still amounted to 900 million pesos.

In addition, Sid said that the international prices of raw materials have an impact on Cuban nickel, which affects export earnings. 2015 average nickel price of US $ 11,800 per tonne. Affected by this, nickel ore export earnings scheduled to be completed only 55%.

2016 investment in the field of energy and mineral will focus on the development of renewable energy, oil, nickel ore efficiency, national energy structure optimization and household electrification.

Kenya stone crushing machine

Kefid-gold-ore-crushing-plantKenya?stone crushing industry has been growing rapidly in these years. ?The important reason is the ?increasing demand from the Kenya building and?construction industry and the present emphasis on developing the country’s infrastructure (such as house building, rail way building, ?road building). Though reliable statistics are lacking for this industrial sector due to its informal nature, it is estimated that there are more than 10,000 stone crushing units in?Kenya.

Kefid Machinery are leading?stone crusher machines?supplier in the China, by now, its crusher machines have been exported to global market, and have the world-level manufacturing technology in the stone crusher. Kefid stone crusher have many types, such as mobile crusher, jaw crusher, impact crusher, cone crusher, hammer crusher etc. All of these machines are suitable for Kenya market’s demand.

Main advantages of the ?crusher machine:

  • ?innovative design of crushing roller grooves;
  • roller made of manganese steel casting;
  • significantly lower manufacturing costs of the ?machine;
  • over 20 years experience and many sucessful customer case;
  • completely technical support throughout;
  • global service with more discount in future.

Kenya customer can get more crusher information, customer case of using crusher in Kenya, or how to choose crusher according Kenya’s different mineral types, please contact with us for more details and support.

China Best Crusher and Pulverizer Company

Ceramic CrusherKefid machinery company is the suitable one for you, its crusher have won ISO and CE certificate and has high quality, it also supply global service in supply technical support and wear part support, etc. Crusher supplied by Kefid are mining & crushing equipments, metallurgical flotation & beneficiation machinery, sinter & pellet plant,blast, road making & road construction equipments, concrete placing or ?handling, material handling, graders, drill or ?hammer breaker, etc. It is also a professional engineer of mining crushers and Industrial grinding mills. We can Process different kinds of stone and ores, such as coal, marble, granite, river gravels etc.

Our Main Focus & Philosophy to Provide Best Service to Customer as under:

Selection, Well Optimize design Machinery supply, provide to customer

Project Management for Crushing, Screening and Grinding Systems

After sales service for crushing systems. As we visits First then Offer Supply of spares and wears for Crushers. Even Help to provide for there old plants’ parts to which we not supply also then.

Study of non-performing existing crushing, grindings an screening plants.

Cost-Effective and Eco-friendly Mining Solutions

We believe to be honest with clients and their gain confidence,because it is the only current way to bless our business.

Crushing production line for highway construction

For construction of highway, high-speed railway and hydropower, standard of concrete aggregate is very high, such as grain shape, and equipments standard, especially for crushing of basalt (Diabase, limestone). In the traditional two-step crushing, much material of flakiness shape will be generated, which will not be able to meet the very requirements.

To solve this problem, we have got deep cavity vertical shaft impact crusher, JC series jaw crusher, European tech impact crusher and hydraulic cone crusher, which are specially designed to match the requirements with good grain shape and less content of flakiness materials below 5% and have successfully served many highway constructions both at home and abroad.

HCS160 single cylinder cone crushers

HCS160 single cylinder?cone crushers is a new type cone crusher, after about two years, Kefid? experts have successfully developed this innovative stone crusher products.? Kefid company are ready to serve customers with best equipment, new and low cost equipment, easy operate equipment. Kefid always do our best in mining and crushing industry and to be the best one.

HCS160 hydraulic single-cylinder cone crushers combine mechanical, hydraulic, electrical, automatic, intelligent control technology in one, representing the world’s most advanced crusher technology, which have incomparable advantages of traditional crushers.

Based on 25 years experience of design, production, sales, service in the the crushing industry and the combination with modern industrial technology abroad, Kefid’s new cone crusher series for mining crushing industry will provide customers with more efficient, low-cost, more stable, more convenient user experience.

Category: Industry News

Mineral Ore Milling Technology

Ore milling including crushing and grinding, always, beneficiation begins with the milling of extracted ore in preparation for further activities to recover iron values. Milling operations are designed to produce uniform size particles by crushing, grinding, and wet or dry classification.

The capital investment and operation costs of milling equipment are high. For this reason, economics plays a large part in determining the use of comminution equipment and the degree of crushing and grinding performed to prepare ore for further beneficiation. Other factors considered in determining the degree of milling include the value concentration of the ore, its mineralogy, hardness, and moisture content. Milling procedures vary widely both between mills and within individual mills depending on these variables.

Milling is a multistaged process and may use dry or wet ore feed. Typically, primary crushing and screening take place at the mine site. Primary crushing is accomplished by using gyratory and cone crushers. Primary crushing yields chunks of ore ranging in size from 6 to 10 inches.

Oversize material is passed through additional crushers and classifiers to achieve the desired particle size. The ore is then crushed and sized at a secondary milling facility.

Secondary milling further reduces particle size and prepares the ore for beneficiation processes that require finely ground ore feed. The product resulting from this additional crushing is usually less than 1 inch (1/2 to 3/4 inches). Secondary crushing, if necessary and economical, is accomplished by using standard cone crushers followed by short head cone crushers. Gyratory crushers may also be used.Subsequent fine grinding further reduces the ore particles to the consistency of fine powder (325 mesh, 0.0017 inches, 0.44 microns). The choice of grinding circuit is based on the density and hardness of the ore to be ground. Although most taconite operations employ rod and mill grinding, a few facilities use autogenous or semi-autogenous grinding systems. Autogenous grinding uses coarse pieces of the ore itself as the grinding media in the mill. Semi-autogenous operations use metallic balls and/or rods to supplement the grinding action of the ore pieces. Autogenous grinding is best suited to weakly cemented ores containing some hard material. The benefit of autogenous grinding is that it is less labor- and capital-intensive. Semi-autogenous grinding eliminates the need for a secondary crushing circuit. Rod and ball wear, the principal maintenance cost of traditional grinders, is also eliminated with this method.

Between each grinding unit, operation hydrocyclones are used to classify coarse and fine particles. Coarse particles are returned to the mill for further size reduction. Milled ore in the form of a slurry is pumped to the next beneficiation step. If the ore being milled is destined for flotation activities, chemical reagents used during the process may be added to the slurry at this time. To obtain a uniform product, many operations blend ores of several different grades, compositions, and sizes. The mixing of ore materials is typically accomplished through selective mining and hauling of ore.

Ore milling have different configuration and process, know more about mineral ore milling, beneficiation, please contact with us, or send requirement to email: . our sales manager or engineer team can give you full support.