How to improve the grinding efficiency of industrial milling process

Cement enterprise is slag drying moisture reduction, in order to improve the grinding efficiency, so as to achieve the purpose of saving energy and reducing consumption. While the vast majority of slag material such as water, because of the weather and the length of storage time, the constantly changing. Quality control and how to control the drying of materials such as slag activity, become a key problem generally ignored in cement enterprise. The drying process is very important in the process of grinding slag, drying temperature should not exceed 450 degrees, if more than 450 will reduce the degree of the activity of slag, and the potential damage the interests of customers. The temperature is too low will lead to lower the evaporation intensity, if required to maintain the same yield, it is necessary to increase the heat exchange area, it means that the specifications of the equipment, will lead to rising cost of customers to purchase equipment. How to choose the suitable drying system to improve the drying efficiency of enterprises, reduce the cost of enterprise, must carry on the comprehensive understanding of the advantages and disadvantages of various grinding equipment. At present, there are dry grinding and wet grinding of two kinds of main grinding technology of China's cement industry. Horizontal drying machine is single the dryer of traditional and new three cylinder dryer; vertical dryer is mainly vertical dryer traditional and new automatic vertical dryer. The traditional single cylinder horizontal drying machine by using the heat drying rate is low and the cost is too high, and gradually be eliminated by the market. Vertical dryer because of the problem of the traditional material easy to plug has been gradually withdraw from the stage of history.

All kinds of materials, dry, wet grinding classification process and technology of material grinding classification is the key technology in the preparation process and system, building materials, chemical industry, electronic processing, thermal energy engineering, food, pharmaceutical and other industries of mechanical powder. Process and technology of grinding grading materials will not only determines the quality of products, but also affects the energy consumption of the system. The process and technology advantage is can not change the structure of the original equipment, by adjusting the operating parameters to achieve the grinding classification. Grinding classification operation of ordinary materials, can significantly reduce energy consumption, improve the morphology and particle size distribution, improve the quality of products; grinding grading operation of special material, can change the morphology and particle size distribution, to improve the product quality and meet the specific requirements of the project. Technical indicators: grinding grading operation of ordinary material can be based on the original energy 10 ~ 30%. Results: the scope of application: building materials (such as cement factory), ore dressing, chemical, food processing, environmental protection (such as all kinds of solid waste treatment plants), food, pharmaceutical and other industries the mechanical preparation of powder system. Benefit analysis: the process of many application areas, leading technology, market prospects. The main equipment of this technology is the grinding equipment, grading equipment, production scale is 10 ~ 1000000 tons / year. Due to the different processing of raw materials, equipment investment, plant area, personnel arrangements are also different, the product cost and profit are different, specific negotiable. The technology has a good economic benefit. A new automatic vertical drying machine compared with the traditional vertical dryer, the drying principle is completely different, a new automatic vertical drying machine is using the principle of edge cutting, and compared the traditional feeding principle, is more reasonable and scientific. The traditional vertical drying machine has the material easy to plug, high energy consumption and drying, the drying quality can not be guaranteed and other shortcomings. A new automatic vertical dryer not only completely solve the traditional vertical dryer easy plugging problems, and the whole drying process automation control, using the most advanced corresponding double frequency conversion technology, according to the requirements of the user to adjust and ensure the drying quality, rate of about 92% by using the energy theory. According to the cement plant waste heat resources, material drying using remaining heat, to achieve zero consumption of energy drying materials, greatly reduce the cost of enterprise. On the premise of waste heat temperature, air and moisture content changing, both to ensure the normal operation of the kiln system, but also to ensure the quality of drying materials, we can see that the residual heat drying is a systems engineering with technical content higher.