Winter production tamping machine hammer bonding coal
Thread Content
Our factory is currently producing in winter, and the 4.3-meter 18-hammer tamping machine has a high moisture content of 14 to 17 tons in the coal blend. The inside of the tamping hammer is seriously stuck with coal during operation, which makes the tamping machine unable to work properly. Have you experienced the above problems with multi-hammer tamping in winter? Is there any good way to deal with it?
Add an electric heating device to the side wall of the coal trough
This post was last posted by Beijiu Sheng at 2009-12-12 08:34. The coal trough is electrically heated and is glued to the hammer rod, mainly from the lower one meter to the hammer head.
What is the appropriate temperature control for electric heating?
This should be a common problem in cold areas. The hammer head is cold, even minus 20℃, while the temperature of coal is relatively high, and there is moisture in the coal. The hammer head conducts heat quickly. The moisture in the coal will freeze when it encounters a hammer head below 0℃, causing the coal to stick to the hammer head. This is not the same thing as electric heating of a coal tank. Our company's tamping coke oven has not been put into production yet. This is also a problem that I am studying and solving. I would like to ask experienced friends to express their opinions. I think the solution is to 1. Control the moisture content of the coal. 2. Protect the hammer head from cold and wind, that is, lengthen the color steel plate protective shed of the tamping machine. Block the hammer head. Of course, this only has a certain mitigating effect.
This can be solved by closing the tinkering area and taking fire insulation measures.
Adding an electric heating device only consumes electricity
The first is to increase the power of the electric heating blower next to the tamping hammer. This method is recommended. The second is to insulate the tamping station well, and add steam pipes to the insulation and wherever the tamping station can be. The third is to control the temperature of the incoming coal, that is, add electric heating to the coal box, and the insulation of the corridor. The fourth is to control the moisture of the incoming coal, and the tamping box. and the storage time of coal in the coal hopper. It is too cold in winter to prevent freezing in the box. Then there will be trouble. Fifth, the frame beams (movable arms and fixed arms) of each tamping box are all covered with high-power electric heat tracing, and then rock wool is used for insulation. This prevents the coal cake from freezing in the tamping box. It is strongly recommended to be used in northern coking plants.
If the coal moisture content is too high, preferably 10-13%, I think your coal collapse rate will also be very high. If the moisture drops, the problem will be solved naturally. If the moisture does not drop for a long time, it will cause more serious problems.
Moisture content in coal blending is the main problem, but it cannot be reduced. It is our own coal, which cannot be solved in the near future. The moisture content is sometimes over 16 o'clock. It's over minus 30 degrees here at night. There was a gas fire at the coal chute, but it could not roast the head of the bell, and the tamping station was so hot that I couldn't breathe. There is also serious coal sticking on the coal receiving plate, and the water content is too high to allow coal to be put down. It’s difficult!