Cement ball mill is important grinding equipment with a high application rate in the cement industry, and its output directly affects the production efficiency of the whole production line. The following are 6 factors affecting the output of cement ball mill and 6 methods to improve the output of cement mill.
6 factors affecting the output of cement ball mill
1. Particle size of the feeding material
The size of the feeding material has a great influence on the output of the high-performance cement mill. If the material size is small, the output of the cement mill is high and the power consumption is low. If the particle size of the material is large, the output of the ball cement milling machine is low and the power consumption is high.
2. Grindability of materials
The grindability of materials refers to the difficulty of material being ground. The easier the material is to grind, the higher the output of the cement finish milling machine is, otherwise, the lower the output is.
3. Moisture of the grinding material
The moisture content of the material in the mill has a great influence on the output of the most reliable and efficient cement ball mill. The higher the moisture content of the feeding material is, the more likely it is to cause full grinding or paste grinding, which will reduce the grinding efficiency and the output of the cement mill system. Therefore, the materials with high moisture content should be dried before entering the ball mill.
4. The temperature of the feeding material
The too high temperature of the material to be ground, coupled with the impact friction of the grinding medium, will cause the temperature inside the ball mill to be too high, causing ball sticking, reducing the grinding efficiency, and affecting the output of the cement mill equipment. At the same time, the thermal expansion of the cement mill barrel will affect the long-term safe operation of the mill. Therefore, it is necessary to strictly control the temperature of the material entering the cement ball mill in the cement plant.
5. Grinding process
For the optimizing cement ball mill of the same specification, the output of the closed-circuit process is 15-20% higher than that of the open-circuit process. In closed circuit operation, the formation of appropriate powder separation efficiency and circulation load rate is an important factor to improve the output of energy-efficient cement ball mills.
6. The influence of grinding aids
Most of the commonly used grinding aids are organic substances with strong surface activity. During the grinding process, they can be adsorbed on the surface of the material, accelerate the crack propagation in material grinding, reduce the mutual adhesion between fine powders, and improve the grinding efficiency, which is conducive to the energy-saving and high yield of ball mill for cement grinding process.
6 ways to increase production
1. Control the moisture and temperature of the grinding materials
The temperature of the material entering the ball mill for cement grinding should be strictly controlled within the range of process requirements. In order to ensure the stable output of the cement mill, the comprehensive moisture content of grinding materials should be less than or equal to 1%.
2. Control the grindability of the materials into the cement ball mill grinder
In order to ensure the grindability of raw materials, one is to produce clinker with good grindability as much as possible, and the other is to select mixed materials with good activity and grindability.
3. Use cement grinding aids
Adding a small amount of cement grinding aids in the grinding process can improve the grinding efficiency, which is conducive to the cement ball mill grinding system with high quality, energy-saving and high yield.
4. Control the internal ventilation of cement ball mill
In order to ensure the good circulation of ventilation in the cement ball mill grinding process, all ventilation pipes should be cleaned regularly under normal production conditions. For the ventilation of the powder separator, it is necessary to adjust the efficiency of powder selection reasonably to ensure the stable improvement of the output and quality of the mill. The practice has proved that the wind speed in the open flow ball mill should be controlled at 1.0 ~ 1.2m/s, and the loop-flow ball mill should be controlled within 0.8~1.0m/s. The empirical formula is Q=400G. Q is the ventilation capacity of the ball mill (m3 / h), G is the output of the ball mill (T / h), and 400 is the empirical coefficient.
5. Strictly control the particle size of the feeding material
The method of "more crushing and less grinding" is adopted to keep the particle size of the material fed into the cement ball mill below the internal control standard. To control and track the particle size of the mixed material, so as to realize the reasonable particle size of various materials.
6. Timely adjust the gradation of the grinding medium
If the equipment configuration allows, increase the ball loading capacity appropriately. The supplement of the size and quantity of grinding medium mainly depends on the material of the grinding body, the output, and quality of cement ball mill, and the operation time. Determine the quantity of supplementary grinding medium based on the actual measurement of grinding medium consumption per ton of product, the change of mill current, grinding sound level, mill output, and quality in daily production. Regularly check the damage of the grinding medium in the warehouse of the cement mill. When the steel balls are damaged more, the warehouse should be cleared and graded again. In general, 3 ~ 4 grading balls can be used for one bin, and 2 ~ 3 grade for the fine grinding bin. The clearance of the warehouse is particularly important, and the clearance period should be determined by the quality of the grinding mill, which should not exceed 6 months in the longest time.
The above are the factors affecting the output of a powerful cement ball mill and the related introduction of improving the output of cement mill grinding ball mill. Customers in need can contact us online to obtain more latest information about cement ball mill, so as to help enterprises produce greater economic benefits.
