As we all know, the vertical mill and the feldspar ball mill can be used for grinding feldspar. What is there some difference between them?
1. Feldspar ball mill energy utilization rate is low, there is vertical mill, roller press and other equipment to replace the trend, but the ball there "the particles are approximately spherical, conducive to raw material calcination and hydration of cement hardening" unique advantages, which is the main reason for the selection of most still clinker grinding mill.
2. Because of the vertical milling method is reasonable, the grinding work is fully utilized by the material, and the classification in time, to avoid the phenomenon of over grinding material, so it's high grinding efficiency, low power consumption.
3. Vertical mill allows the adoption of a large amount of air, it is a large capacity of drying; grinding material in suspension, increasing the contact area of the material and air flow, heat exchange conditions are good, so high drying efficiency.
4. Vertical mill accounted for only 50%~70% of the ball mill, the occupation of physical space is relatively small.
5. Lower initial cost. The initial construction cost, operation cost and maintenance cost are only 70%~80%.
6. The size of the grinding material is large, generally up to 3% of the diameter of the grinding roller, the size of the large size of the grinding material is allowed, therefore, large and medium-sized vertical mill can be omitted from the two level of grinding. The feldspar ball mill is limited to the maximum diameter of the steel ball and can only be fed into smaller materials.
7. Product fineness adjustment is convenient, uniform particle size, stable chemical composition. The proportion of fine particle powder produced by ball mill is low.
8. Small noise, less dust, is conducive to environmental protection. There is no impact between the grinding body and the grinding body and the lining plate in the vertical grinding operation, so the noise is low, the grinding of the vertical mill and the pipeline system are relatively simple, the sealing is good, and the operation of the negative pressure is little.
9. Shorter conversion time, vertical mill in a very short period of time in the same mill on the conversion of different raw materials to produce different products. Ball mill requires a longer time to clear the material.
10. Wear low. There is no direct contact between the metals in the operation, so the metal consumption is less. So parts wear less, long life, the product of metal wear in general 5~10g / tons. The ball mill using the impact of friction, so wear high.
11.The process flow of vertical mill is simple, the equipment is installed vertically, and the grinding machine is used for grinding, drying and grading materials at the same time.
