Crushed material consumption and many other factors. With hammer, for example, it's life with the following four factors: First, the physical properties of minerals and concomitant nature (the metal abrasive, including the amount of soil, water, sticky plastic, compressive strength, etc.); second the internal structure of the machine is reasonable; third hammer selection is correct and manufacturing quality; four methods of operation. The first is an objective existence, is a congenital need to have a correct understanding in advance. The second is to adapt to deal with is the nature of the process material and process requirements, need to be inside the machine, and prevent abnormal excessive wear. The third issue is the selection of the crusher, the current hammer efficient crusher, single-stage hammer crusher has a high manganese steel classes (including alloy high manganese steel, super high manganese steel alloying elements, combat plane alloy high manganese steel surfacing wear layer); carbon steel classes (including combating segment hardness HRC55-58, the mother 39, impact toughness> 240j dual hardness hammer); bimetallic composite class (head of high chromium cast iron, HRC> 61, the shank is chrome molybdenum alloy steel, HB225 ~ 310); high manganese steel carbide insert class. Brittle limestone medium hardness, abrasion resistance is not high when the main use of high manganese steel hammer class, when abrasive higher or more compound mixed with sandy soil, the high manganese steel hammer class work hardening layer is difficult to form and to maintain, the effect is not good, should not be used. Coal, gypsum using carbon steel hammer effect is better than the high manganese steel hammer. The fourth is the use and operation of the crusher. Regulation and hammer cuffs grate timely and untimely, the effect different. Currently crusher liner, not even individual plants flanging, not regulation, allowed the grate with the rotor excessive accumulation of space material layer friction, wear-resistant materials and then not long life expectancy. Therefore, to establish a system, careful use, in order to extend the life of mechanical parts, cement mining to achieve energy saving and emission reduction. People if long-term inactivity will lead to decline in physical function, muscle contraction, feel powerless again when you want to be active. The same is also true crusher. Crusher is a lot of our work indispensable, hammer crusher crushing machine is a high-speed rotation. Some work without it there is no way to work, so we use the time we should know know it's maintenance, hammer crusher is how to operate and maintain it? (1) To start a professional Empty crusher, pay attention to the crushing chamber should be emptied before the material down. (2) to be associated with the machine on, the next step before the open parking made contact, according to the order open parking for proper operation. (3) maintaining uniform feeding, and care not to feed the metal debris. (4) regularly examine the use of hammer, liner, and so easy to wear and easy wearing parts, if they are found promptly. (5) pay attention to check the height of the expected size meets the quality requirements, such as not, should be replaced or adjusted grate grate bracket. (6) regular checks of all equipment anchor bolts, liner bolts, loose, if loose, should be tightened. (7) should always look at lubrication, lubrication system in good condition. Rotor bearing temperature should be kept below 60 ℃, the maximum does not exceed 70 ℃, if found overtemperature reasons should be identified, to take timely measures to eliminate. Sand crusher _ North Mine Zhongcheng (certified) _ crusher from Shenyang North Mine Zhongcheng machinery Limited. Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) Liaoning Shenyang, machining leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In North mine public into leadership with the staff warmly welcome all inquiries negotiations to create the North mine public into a better future.