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Poly-metallic sulfide ore flotation process has made significant progress; the new technology of high basicity flotation and mixed concentrate asynchronous priority flotation has been successfully applied in production; more than 40 percent of lead and zinc ore dressing use no-cyanide process; oxidation lead-zinc ore dressing maks new progress to find a process which is suitable for complex mineral composition and large amount of lead-zinc ore. The successful development of new aniline black drug pharmaceutical processing has such advantages as good selectivity and low toxicity.

At the commercial conference of china electro-mechanical division in 2008, Minister of Department of commerce, Jiang Yaoping, said that we shall actively expand the import volume of advanced technology equipments, strengthen the ability of technology introduction, absorption and innovation, speed up the pace of upgrading industrial structure.

This conference was held on May, 12-13 2008, in Xian city. At the conference, Jiang Yaoping said that: together the related department, department of commerce will take various measures to expand import of advanced technical equipments. These measures include: take advantage of 5 billion of subsidized capital, import more from key countries, bridge the difference between imports and exports, urge the developed countries to relax the regulations of export, perfect the international bidding institutions and import regulations about electro-mechanical imports.

Hongxing ore dressing process include magnetic separation process, flotation process, lead and zinc mineral process, etc. Each process has different operating processes depending on the raw materials. The main technical and economic indicators of Hongxing lead and zinc ore dressing process have reached the world advanced level. The key grinding and delivery medicine process realize microcomputer control. The whole Hongxing magnetic dressing production line is made up of jaw crusher, magnetic separator, feeder, elevator, conveyor and other equipments. This production line has high efficiency, low energy consumption, high processing capacity and economical rationality.Cone crusher is widely applied in metallurgical, construction, road building, chemical and phosphatic industry. Cone crusher is suitable for hard and mid-hard rocks and ores, such as iron ores, copper ores, limestone, quartz, granite, gritstone, etc. The advantages are: reliable structure, high efficiency, easy-to-adjust and economical. The crushing chamber of Rock cone crusher is decided by the purpose of ore, the standard model is suitable for medium crushing; the medium model is suitable for fine crushing and the short head model is suitable for fine crushing.

Cone crusher usually is used in mining ore beneficiation, medium crushing and tertairy crushing. The moving cone liner, fixed cone liner and ore minerials form a three-dimensional abrasivation, so that the liner surface is in a state of complex stress and force. The broken stone gives liner surface a great compressive stress. At the same time, high speed moving cone liner generates huge shear stress. These two kinds of stresses do chisel cut, cutting, and impact extrusion pit on liner board, which is the main force method. Therefore, as for liner material, we requires not only high surface hardness against chisel edge, but also high strength and toughness. As the different working site condition, especially the ore hardness value is different, 3 kinds of stresses systems are also different from each other. At present, we usually choose high-manganese steel as cone crusher liner board.

The nature of the materials, including the hardness, the composition, the viscosity and the moisture content of the raw materials, the particle size and fineness the products require, and so on. The higher the hardness of the raw materials, the more difficult of the crushing work. The crushing ability lowers and the crushing work progress slows down. The longer the raw materials stay inside the machine, the higher the wear and tear of equipment. Therefore, relatively speaking, the crushing efficiency of materials with low hardness is higher than the materials with great hardness, with the yield of the former is also higher. In the crushing production line, if the production materials are uncertain, the workers should try to choose those raw materials with middle hardness, which can improve the crushing progress and product yield in an easier way.

While the crusher employs a laying-type installation, the balancing mass is located at the bottom of the dynamic cone. The prominent features are: main shaft of the dynamic cone is able to bear greater crushing power, the cone body is easy to extract, and it is convenient to change the quick-wear part—the dynamic cone liner, which improves the working environment of the lubrication system as well as promotes the reliability. Compared with these traditional ones, there’s a fundamental change from the MVP cone crusher that it adopts crossing axis rotation, and it has surmounted the problem that the stroke of the feed port of traditional cone crushers is short, ensuring both a sufficient compression stroke for the materials after entering the crushing chamber and uniform distribution of the materials. Therefore, enough crushing force as well as better crushing effect can be obtained.

As a professional and the best mining machinery manufacturer in China, Hongxing Machinery is always ready to provide the superior shaking table separation, cement making plant, and these machines have the most competitive price and the most reliable quality so that they are the top choices for the high performance crushing equipment.

Cone crusher: http://www.hxjq-crusher.com/8.html
shaking table separation: http://www.hx-crusher.com/n234.html
cement making plant: http://www.hxjq-mill.com/products/cement_production_line.html

Henan Hongxing Mining Machinery Co., Ltd is a large-sized convery belt, stone flour mill manufacturer, and the mining equipment we researched and developed with great concentration plays an active role in the mining and ore beneficiation industry and is one of the indispensable mining crushing equipment in the mining industry.