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General

World Industry Economy

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It is expected that in the second half of 2012 the global industry growth is going to decline, but still remains to slow recovery tendency. The traditional industrial growth will slow down, while the emerging industry maintains a rapid growth momentum. The trade deficit in some developed countries continues to increase, whereas the trade growth is about to expand among the emerging nations. Along with the quickening backflow trend of the developed countries, the emerging ones have accelerating the industrial transformation and upgrading, which is bound to lead to fiercer competition among the global manufacturing. Affected by the constant upgrading from European sovereign debt crisis, the world economy growth in the second half of 2012 will slow down obviously. Moreover, some new circumstances may emerge in the world industry development as well.

The recovery momentum in American manufacturing (ore beneficiation) turns out to be evident, but it shrinks in European manufacturing industry obviously. It appears a quick decline in industrial growth in emerging countries. On July, 20th, the industry trend forecasting group of CCID think-tank world published to report about Analysis and Forecast of the World Industry Trend in the Second Half of 2012. It is pointed out that there exist a lot of profound problems in the global industrial development. It is estimated that in the second half of 2012, the industrial growth is prone to a slight decline, but still maintains a slow recovery.

The traditional industry growth will slow down, and the emerging industry will keep a rapid increasing tendency, the trade deficit is about to augment while the trade growth is going to expand continuously among these new countries. Along with the quickening backflow trend of the developed countries, the emerging ones have accelerating the industrial transformation and upgrading, which is bound to lead to fiercer competition among the global manufacturing. Our country is still at the critical stage of industrial transformation and upgrading, therefore taking active actions will do a great help to reinforce the sustainable development capacity of our industry and mean a lot for the overall industrial development.

General

Material Suspension

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Material of the ball mill (stick) live is filled in the cylinder body which equipped with a grinding rotation body, tube live the rotation through the grinding medium and fall the material down after upgrading them to a prescribed height, the grinding medium have a greater impact to the grinding materials, which resulted the material to be crushed. The ball mill material is forced into the mill by the riser material raised to the prescribed height, and then free-fall, impact on the role of mutual friction between the material of grinding stripping. due to the grain, block size to bulk materials and wedge Lee pull impact, due to the wedge and pull the counter-attack role, to prevent the material to produce the axial size segregation, and thus the bulk material can be uniformly distributed. Return to the crude material from the discharge end along with the new feed mill feed plots, evenly off the bottom of the tube center, and then spread to both sides. Bulk and fine materials to live in the cylinder at the bottom of the opposite direction along the axial movement, so producing the grinding effects, the crushed material are Picado grounding. Not average mill, which is also known from the mill.

In addition, there are also plate mill. The milling machine milling machine, which is also known as plate mill, the structure can be divided into fixed disc type and disc rotation these two major categories. Material joined evenly by the charging port, due to the centrifugal force, the material live at the edge of the lap, living the spring pressure or centrifugal force and gravity mill itself, the material extrusion and grinding, the material crushed Picado ground. Vibrating mill living the vibration of the cylinder body, which equipped with grinding media and materials, rapid vibration on the vibration of the cylinder to live in an approximate elliptical trajectory. The vibration of the cylinder so that the grinding medium and material in suspension, and a small role in the projectile impact, abrasive grinding points with the material, the material crushed Picado ground. Jet mill using the steam, air or other gas to inject the set pressure into the body, and then produces high speed rotation of the vortex. The body of material particles with the flow of high speed rotation, and live in the collision between particles and particles in the rotation process, ing and grinding the material impact, finally the materials are crushed Picado. Mobile crushing station: Ore beneficiation: