With the development of the solid waste slag industry, the special dry vertical mill for the equipment of the slag micro powder industry is a new type of powder mill to increase production and reduce consumption. It has high grinding efficiency, fast powder separation efficiency and fine classification accuracy. It is favored by the industry and is a new type of vertical mill to promote the development of the solid waste slag industry.
The new generation of vertical mills, Raymond mills, ultra-fine mills and other equipment not only have high grinding efficiency, but also have the advantages of green environmental protection, low noise, increasing production efficiency and low civil construction cost. At present, the equipment can be used in more markets such as solid waste residue, coal mine, cement raw meal, clinker, manganese ore, etc.
The micro slag powder does not need to go through the crushing process in production, because the raw material size is small, but because the slag is a by-product in the process of blast furnace ironmaking and the humidity is high, it needs to go through the drying operation. The dried raw materials are added to the pulverizer through the conveying equipment for grinding, and the finished products are transported to the finished product inventory. Therefore, the production process of slag powder mainly includes the following parts: feeding, conveying, drying, grinding, powder collection, storage, etc.
The vertical pulverizer has the advantages of high grinding efficiency, low power consumption, large feeding particle size, easy adjustment of product fineness, simple equipment process flow, small floor area, low noise, small dust, simple operation and maintenance, low operation cost, and low consumption of wear-resistant materials. It can be widely used in electric power, metallurgy, cement, chemical industry, non-metallic ore and other industries. It is mainly used for grinding raw cement, clinker, power plant desulfurization limestone powder, slag micro powder, manganese ore, gypsum, coal, barite, calcite, bauxite and other materials.
The vertical mill system is composed of main machine, feeder, classifier, blower, pipeline device, storage hopper, electric control system, collection system, etc. The pressure device is designed and manufactured in a standardized modular way. With the increase of the capacity of the vertical mill, the number of grinding rollers of the vertical mill is correspondingly increased. The motor-driven reducer can be used to drive the grinding disc to rotate. Under the action of centrifugal force, the materials move around the grinding disc and enter between the grinding roller and the grinding disc. Under the action of the pressure of the grinding roller, the materials are crushed by extrusion, grinding and shear force, The ground powder is blown by the air flow of the blower to the classifier above the main machine for screening. The coarse particles still fall into the main machine for regrinding. The fine particles that meet the specifications flow into the pulse dust collector with the wind. After collection, they are discharged through the powder outlet pipe. The purified air flow flows into the blower through the pipe on the pulse collector and is discharged into the atmosphere.
Whether the model selection of the equipment used in the production of fine slag powder, whether it is a feeder or a pulverizer, is reasonable or not, is related to the income of the production of fine slag powder. Generally, when configuring the preparation process of slag powder, the main reference is the capacity, the quality of finished products and other factors. Only by selecting the appropriate production line can we ensure the smooth progress of production.
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