Ball mill is the application of the highest rates of China cement industry important grinding equipment. There are many influence factors on the yield and quality of ball grinder, the practice proved: various cement enterprise according to actual production condition, after certain measures of technical renovation, production capacity is much higher than that of ball mills.
1, the grain size of grinding material. As a result of the shaft kiln cement ball grinding mill small specification, so that the grinding material particle size and the size of the output and quality of mill is very large, small particle size, ball grinder production, high quality, low power consumption; Particle size of ball grinding mill is large, the ball grinder production, low quality, and high power consumption.
2, material of grinding in ball grinder. Material of grinding, it is to point to the material being grinding, to the difficulty of the use of national standard Wi crushing function indices (KWH/t) said.The smaller the value, the better grinding materials, whereas the more difficult to grind. Cement plant habit use relatively easy grinding coefficient, to indicate to the difficulty of the material being grinding.It is refined using experiment, to the material being measured, compared with that of standard sand fineness regulation value, calculate the grinding time, the same as the standard sand grinding time is 1, greater than 1 hard grinding;Less than 1 easy to grind; The bigger the ratio of the more difficult it is to grinding, grinding as small as possible.
3, water into the grinding material.For dry grinding, the grinding material of great influence on water quality of mill production, and the grinding material moisture content is higher, easy to cause full or paste grinding, reduce grinding efficiency, the lower the mill production. Therefore, the water cut of the larger material, into the ground before drying is very necessary.
4, the temperature of material into the ground. Into the grinding materials of high temperature plus the impact of the grinding medium friction, can make the grinding temperature, glue ball occur, reduce grinding efficiency, impact mill production. At the same time mill cylinder heated inflation impact mill long-term safe operation.So we must strictly control the final temperature.
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