With the improvement of cement labels in my country and the continuous deepening of technical transformation of various cement enterprises, the technical transformation of the grinding system has become an important process of cement plants. To increase the output of the mill and the fineness of the discharge, it is necessary to transform the crushing system , Using high-fine crushers and pulverizers, the particle size of the materials crushed by this type of equipment is generally below 10 mm. Such fine materials will be crushed once they are mixed with iron debris such as chains, wrenches, bolts, and discarded iron parts. The machine can cause serious damages, ranging from damage to hammers, liners, and screen bars, and serious damage to the central shaft and bearings of the crusher. Therefore, choosing a good-performance and reassuring iron remover can truly avoid accidents of similar problems. However, if you use inferior iron separators produced by non-standard manufacturers, the iron absorption may not be clean, and the crusher may also be broken by iron. Because inferior electromagnetic or permanent magnet iron removers generally cut corners and have unstable performance, use Short life and other defects, these defects are generally not easy for users to find at the beginning of use, so that they will cause hidden dangers for future use. At present, electromagnetic separators and permanent magnet separators respectively implement the standards of JB/T7689-95 "suspension electromagnetic separator" and JB/T8711-1998 "suspension permanent magnet separator". The national standard has detailed regulations on the excitation power, insulation level, iron absorption range, rated lifting height, magnetic field strength, and heat dissipation mode of the iron separator. At present, due to the rapid development of the building materials industry, the market demand for iron separators is large. Some inferior iron separators that do not implement the national standard can take advantage of them. Fish and fish will flow into the building materials industry, causing hidden dangers to the crushing system of the building materials industry.

Iron separators are divided into electromagnetic separators and permanent magnetic separators according to different sources of magnetic force. They are a kind of iron removal device used to remove iron impurities in lump or powder materials. The electromagnetic separator is essentially a direct current electromagnet whose excitation coil generates a strong magnetic field during the energization process to attract iron parts in non-magnetic materials. Permanent magnet iron remover is a magnetic source composed of high coercivity, high remanence rare earth magnetic material neodymium iron boron and ferrite to form a strong magnetic field, used to absorb ferromagnetic impurities, the whole machine is not energized, and no energy consumption .

Iron separators are mostly used to protect raw meal and clinker grinding systems, such as crushers, roller presses, vertical mills, packaging machines and ball mills. It is used to remove iron impurities in raw materials, protect the safe operation of grinding equipment, and reduce failure rate. In glass and ceramic factories, it is mostly used to remove iron impurities and iron powder in raw materials to protect crushing equipment and improve the quality of glass. In brick and tile factories, it is mostly used for iron removal protection of crushers, roller machines and brick making machines.

Various forms of electromagnetic and permanent magnet iron removers, as a kind of special crushing machinery protection god and special equipment for improving product quality, have attracted more and more attention.

　　 After purchasing a satisfactory crusher or vertical mill or fine crusher, how can I choose a suitable iron remover? According to the current application of iron separators in the building materials industry, the product selection of several large cement companies is worth recommending. Large modern enterprises such as Beijing Cement Plant, Conch Cement Group Company, Jidong Cement Group Company, Emei Jinding Building Material Group, Yaohua Glass Group, Shenzhen CSG Group and other large modern enterprises now all adopt the RCY series suspension type that does not consume electricity and has a long service life. Permanent magnet iron remover. Large enterprise groups such as Mudanjiang Cement Co., Ltd., Xinjiang Tianshan Cement Co., Ltd., Nanjing Shuanglong Cement Group, Shaanxi Hanjiang Building Materials Group Co., Jiangxi Wannianqing Cement Co., Ltd., Guangdong Tower Cement Group Co., Ltd. all adopt a fully-sealed, self-cooling structure to prevent dust , Moisture-proof, rain-proof RCDB, RCDD series of dry electromagnetic separators. Shandong Liuyuan Cement Company, Chongqing Fuhuang Cement Plant, Ningxia Saima Cement Group, Mengxi High-tech Materials Co., Ltd. have selected a fully sealed structure, dustproof, heat dissipation, and effective RCDE, RCDF series of oil-cooled electromagnetic separators.

The RCDA series of air-cooled electromagnetic separators popular in the 1970s and 1980s were basically eliminated because they could not meet the requirements of large dust, poor environmental conditions, and continuous work in cement plants. However, there are still some small iron separator manufacturers because of their simple manufacturing process, low technical content, and low production costs. They are still in production, selling them to some less-skilled consumers and unscrupulously seeking profits.