Ball mill liners are often the cause of damaged equipment is often in front of the PEX series jaw crusher, ball mill and the corresponding classifier connected to do for the next process mill, through the crusher to a few seconds meters below the rock by a conveyor into a ball mill grinding a long time to process, but the liner in the process played a role in the protection of the cylinder, the ball is grinding to reports, nothing other details, see the following: First, the grinding effect of grinding media ball mill grinding of raw materials often include: types of mining raw materials, ball mill price, all kinds of non-metallic minerals, and coal used in the power industry. Hardness index medium is an important reason decided liner wear failure, the higher the hardness of ore, Shanghai mill, the shorter the life of the liner, on the contrary, it will increase the life cycle. Second, the impact of a job runs to avoid the defect is not repaired in time, for example, loose bolts fall, individual liner off, if not timely replacement of the case, the defect will gradually spread, causing other liners and cylinder a lot of damage. 2, the feed is uneven, adjust properly, mill equipment, running short positions appear, resulting in direct friction ball and hit the cylinder and liner, forming a two-body wear, this fragmentation of the liner and the ball wear opportunity to significantly increase, causing great damage to the lining, is a very bad mode of operation. Third, the impact ball mill liner material according to the physical properties of the liner material, the main parameters affecting the wear effect of hardness and toughness of two indicators match the problem, the higher the hardness of the material, then wear the better, may to achieve a proportional relationship, so that the ball mill during operation, the ball falling like a waterfall, to produce a shock lining materials and power, size depends on the size of the impact energy, the size of the ball diameter and the diameter of the mill shell . Fourth, the mill design and manufacture and installation of technology impact liner has two roles, one to protect the cylinder, and the other is the specific speed of the ball raised to the required height, so the ball was falling like a waterfall, to achieve the desired milled effect. How jaw crusher is to achieve security and port of discharge adjustable jaw crusher thrust plate (also called bracket), in addition to transfer power to make swing back and forth movable jaw plate do outside, but also has a security role as insurance, but also to change its length It can play a regulatory role in port of discharge. When the jaw crusher cavity can not break into the matter (such as iron ball, iron, etc.), to protect the equipment after the main components from damage while the use of thrust plate as the crusher assurance member. After the thrust plate is generally made of cast iron cast as a whole, in which the department to open a groove or a plurality of apertures to reduce its cross-section strength; also cast two, then connected by screws (or rivets), consisting of a combination of thrust plate. When not broken material into the crushing chamber, equipment overload, huge crushing force to cause the thrust plate thrust plate fracture or a combination thrust plate screws cut, the machine stopped working, play a role as insurance. With the constant wear and tear tooth plate, port of discharge becomes larger, thicker products constantly, in order to get qualified product size, require periodic adjustment of discharge opening size. Adjustment of discharge ports are the following two ways: (1) shims that support seat in the back of the back pressure plate between the frame rear wall and put a set of gaskets, shims or change the number of its thickness , you can achieve the purpose of adjusting the port of discharge. This method is compact structure, regulate reliable, large and medium-sized jaw crusher and more with this adjustment method. (2) wedge adjustment, is placed between two wedges thrust plate between the rear seat and chassis adjustment, suitable small crusher. Cement mill, ball mill Shanghai, the North Mine Zhongcheng Zhongcheng from Shenyang North mine equipment Limited. Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) strong, credible, in Shenyang, Liaoning province machining industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the public into North mine into the brilliant and you work for a better future!