Industrial grinding machine, a type of grinder, is a cylindrical device used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints. It is a key piece of equipment for grinding crushed materials and widely used in the production lines for powders such as cement, silicates, refractory material, fertilizer, glass ceramics, etc. There are two ways for the industrial grinding machine to grind materials —- the dry way and the wet way. And according to the different mine expelling ways, this grinding miller can be devided into tabular type and flowing type.According to news reports: “At present, there are 38 new projects and old lines reconstruction project in China’s railway construction plan in this year, with the amount of investment of 420 billion Yuan, accounting for 80% of the annual investment plan; while other projects also exist uncertainties.” From the current communications of several items of task, China’s railway infrastructure will continue to “warm” in 2013, and new projects are expected to exceed last year. According to the plan, Shanghai Railway, Chengdu-Guiyang Railway (Leshan to Guiyang segment), Chengdu-Kunming Railway (Chengdu to E’mei segment), Chengdu-Kunming Railway, Chengdu-Guiyang (Yunnan paragraph) and other new projects will start in this year.
Kaolin has become a widely used mineral raw material in dozens of industries including defense, pharmaceutical, chemical, paper, paints, ceramics and rubber. The pure white kaolin with high quality, good plasticity, excellent electrical insulating properties and high adhesive properties is soft, and it’s easily dispersed suspended in water. Kaolin has good acid-soluble, very low exchange capacity, preferably refractory and other physicochemical properties, so it’s widely used in various industrial fields of technology filler. The choice of the grinder mill must be careful for processing of high-quality micronized kaolin.
2. Working principle of the industrial grinding machineThe grinding miller is a horizontal cylindrical rotation device with two chambers and grids, which is driven by the brim gearwheel. Through the feeding inlet and the hollow shaft, the material goes into the first chamber uniformly. In the first chamber, there are stage liners and ripple lines as well as the steel balls with various specifications. The centrifugal produced by the rotation of barrel takes the steel ball to a certain height, and then under gravity the ball drops down , thumps and grinds the materials. After the coarse grinding in the first chamber, the materials go into the second chamber through segregate screen. In the second chamber, there are flat liners and steel balls. The materials will get further grinding in the second chamber. At last, the materials will be discharged through the discharging screen.
3. Structural characteristics of the industrial grinding machineThis grinding miller is mainly composed of the feeding part, discharging part, rotation part and driving part (including gear box, small transmission gearwheel, motor and electric control device, etc). The hollow shaft is made of the cast steel, whose inner liner can be changed. The big rotation gearwheel is made by the processing of cast hobbling, which has the wearable liners in the drum, so it has the good wear resistance.
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