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According to experts, LGMS4624 slag vertical mill is a comprehensive large-scale grinding equipment integrating crushing, grinding, powder selection, drying and material conveying. It has centralized process, good machine performance and advanced grinding mechanism. It has multiple properties such as small area, stable operation, energy saving and environmental protection. Since the production of this equipment in Jiangsu Leida, the production capacity of Taiwan has remained above 90 tons. It is estimated that the annual output of mineral powder will be 800,000 tons, which will increase the existing cement production capacity of Jiangsu Leida by 10%. At the same time, the current slag vertical mill can save 24 million kWh of electricity throughout the year compared to the traditional ball mill system. The production of 800,000 tons of slag powder cement can consume more than 400,000 tons of clinker, saving 30,000 tons of standard coal, saving more than 1 million tons of ore raw materials, reducing carbon dioxide emissions by 70,000 tons, and increasing profits and taxes of 50 million yuan. Above, it has good economic and social benefits.
Qi Tianming, dean of the Technology Research Institute of CITIC Heavy Machinery Co., said that in the production system of modern cement industry, the grinding operation includes raw material grinding, cement grinding, slag grinding and coal powder preparation. It is generally believed that the power consumption per unit of cement grinding material accounts for 60% to 70% of the total power consumption. Therefore, improving efficiency and reducing grinding power consumption have always been the research focus of grinding technology. The vertical roller mill adopts the principle of limited material bed grinding, so the grinding effect and energy utilization rate are greatly improved. According to statistics, vertical grinding powder materials can save 20% to 30% of electricity compared with ball milling, and grinding slag can save 30% to 40% of electricity, which has been widely used in foreign countries. In China, the newly-built new dry-process cement production line with a daily output of more than 5,000 tons and the slag grinding line with an annual output of more than 500,000 tons have all adopted vertical grinding. The energy-saving effect is remarkable, the environmental protection advantage is obvious, and both have achieved good economy. benefit.
The first large-scale slag vertical mill (LGMS4624 cement slag vertical mill) with independent intellectual property rights in China was successfully put into production and operation in Jiangsu Leida Co., Ltd., and the technical indicators of this product meet the design requirements, and the performance has reached the advanced level of similar foreign products.