Why is the ball mill not full of sand and less?

The reason why the ball mill is not full of food but has less sand may be caused by one of his resistances, or the strength of that friction, or it may also be caused by their lack of pressure, which is caused by many reasons.

After touching it, it still shows that there is some sand, and then this situation is that there is a problem with one of her mixers, and it is not sharpened clearly, so you can only grind it again.

If the ball mill is not full of food and has less counter-killing, it is because its filter is clogged.

Here we summarize the reasons for the abnormal operation of the four ball mills and the corresponding solutions, users can refer to whether the problems they encounter are among the following four problems, so that the reference can be solved. 1. Wrapping grinding or stuffy grinding phenomenon: ball mill.

Why can't the ball mill eat enough and kill less? Because of it, the greater the portion, the higher its capacity.

Why is the ball mill not full of sand and less? I don't know what this is going on, you can take a look at the instruction manual.

If we are stupid, then we feel that this situation is very bad, so in this case, we should confirm that everything should be done seriously and treat our lives as if we were doing it.

Why can't the ball mill eat enough and kill less? Because that's how it works.

Why is there less payment method for the sander machine This robot should be information in this regard, pay attention to some reviews on the Internet, and then learn more.

"Full grinding", also known as "full grinding" or "stuffy grinding", is a common sign of abnormal phenomenon "full grinding" in the operation of ball mills: the grinding sound of light degree changes from clear to low, the amount of grinding tail discharge decreases, and the inlet and outlet air pressure of the unloading and drying mill increases; When the degree comes, the grinding sound disappears, the current of the main motor drops to about 70% of the normal value, and the amount of grinding tail discharge is greatly reduced; The degree of extreme weight is the grinding head and the material is returned, the grinding tail is not discharged, and there is not even a little gas at the outlet of the air pulling cylinder. If you open the grinding door to check, you can find:

1. The sticky material on the plate is very thick (some are about 50mm), and the steel ball is wrapped with a very thick material layer; 2. The grate joint of the compartment plate is seriously blocked; 3. About 90% of the effective space in the warehouse is occupied by grinding bodies and materials; "Full grinding" is also accompanied by the thickening of the fineness of the grinding product and the significant change of chemistry. The law of chemical changes: in the early stage of "saturation", the composition of refractory components decreases significantly, and when "saturation" is gradually eliminated, the content of refractory components is significantly more.

"Full grinding" is caused by the imbalance of the inlet and outlet of the tube mill and the excessive amount of material in the grinding in a short period of time, which is caused by: 1. The feeding amount is too much, and the grinding capacity of the grinding body can not be adapted. 2. The particle size of the grinding material becomes larger or the grindability becomes worse, and the feeding amount is not reduced in time.

3. The moisture of the grinding material is too high, and the ventilation is poor, and the wind cannot bring the water vapor and fine materials generated in the grinding process out of the grinding in time, causing the material to adhere to the surface of the steel ball and the lining plate due to high humidity, increasing the buffering effect and reducing the grinding efficiency; At the same time, the wet material also blocks the gap between the partition plate and the discharge grate plate, causing difficulties in discharging. "Satiety" caused by this reason is more common. 4. The grate seam of the compartment plate is blocked by broken iron filings and sundries.

5. In the closed-circuit system, the powder separation efficiency of the separator decreases, the amount of material returned is too much, the feeding amount is not reduced, and the grinding capacity of the ball mill cannot be adapted. 6. The average ball diameter of the first bin steel ball is too small, or the filling rate is too low, or the filling rate of the grinding body in the first bin is too low compared with the second bin. 7. One or two compartment plates between the first and second warehouses are partially broken or perforated, resulting in the grinding body channeling and the grinding capacity decreasing.

Once there is a "satiety", the cause should be carefully identified and eliminated. The method of elimination is generally to reduce or stop feeding, and strengthen the ventilation in the mill, so that the ball mill runs under less or no material to generate more heat. The drying mill should increase the heat of the grinding to promote the rapid evaporation of water and be carried away by the hot air flow; At the same time, the materials adhered to the steel ball, the lining plate and the gap between the grates of the bulkhead plate will crack under the thermal expansion of the adherent and peel off under the repeated impact of the abrasive body.

If it is ineffective, under the condition of stopping feeding, add grinding materials (raw meal mill plus dry coal or quicklime, cement mill plus dry slag or dry slag) to the mill, and feed a small amount of material after the grinding sound is close to normal; After the grinding sound is normal, gradually increase the feeding amount until the feeding is normal. When the "satiety grinding" is very serious, it is sometimes necessary to use the method of reverse grinding: pour out the balls and materials in the bin, thoroughly chisel the crust on the lining plate and steel balls, remove the blockage in the grate seam of the bulkhead plate, and then rematch the ball or load the poured ball.

When the ball mill needs to be cleared, it is appropriate to use the method of reverse grinding.

1.If the grinding phenomenon is light: the grinding sound changes from clear to low, the amount of grinding tail discharge decreases, and the inlet and outlet air pressure of the mill increases; 2. The phenomenon of satiety is serious

The grinding sound disappears, the current of the main motor is greatly reduced, and the amount of grinding tail discharge is greatly reduced. Causes of satiety grinding of ball mill: 3. It may be due to excessive feeding, resulting in the grinding capacity of the grinding body cannot be adapted, resulting in satiety; 4. The particle size of the grinding material becomes larger or the grindability becomes worse, and the feeding amount is not reduced in time when these two situations occur; 5. The moisture of the grinding material is too high, and the ventilation is poor, and the wind cannot bring the water vapor and fine materials generated in the grinding process out of the grinding in time, causing the material to adhere to the surface of the steel ball and the lining plate due to high humidity, increasing the buffering effect and reducing the grinding efficiency; At the same time, the wet material also blocks the gap between the partition plate and the discharge grate plate, causing difficulties in discharging.

This reason causes "satiety grinding" to be more common. 6. The grate seam of the compartment plate is blocked by broken iron filings and sundries. 7. In the closed-circuit system, the powder separation efficiency of the separator decreases, the amount of recycled material is too much, the feeding amount is not reduced, and the grinding capacity of the ball mill cannot be adapted.