[Haichuan Coke Oven Production Operation Questions and Answers] 1. How to deal with the furnace door cross iron decoupling or the furnace door falling over?

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The 25th National "Safety Production Month" in 2026. Everyone pays attention to safety and everyone will investigate and rectify potential risks on an emergency basis -------------------------------------------------- 1. How to deal with the furnace door cross iron decoupling or the furnace door falling over? answer: When pushing the coke cart to open and close the furnace door, if the operating procedure is incorrect and the door opening hook does not hook the furnace door, an accident may occur in which the horizontal iron of the furnace door is decoupled or even the furnace door falls over. Corresponding handling should be carried out according to the situation. (1) The furnace door is tilted outward, but the brick groove at the bottom of the furnace door still falls on the grinding plate at the mouth of the carbonization chamber. In this case, the furnace door has been stopped in time when it starts to fall. You only need to operate the sliding door machine to move the door opening mechanism forward to push the furnace door to its original position, and then use the hook. If the coke falls off and hits the furnace door when the furnace door falls over, the coke should be cleaned before processing. (2) The upper hook is unhooked and the lower part of the furnace door slides out of the grinding plate. First, use a steel rope to tie the furnace door to the door remover at the horizontal iron to prevent the furnace door from tipping over. Lift the furnace door upward slightly by the lower hook, place bricks and iron plates under the furnace door, and lower the furnace door. Then move the hook down, add pad iron blocks to the hook, re-hook it, and add pad bricks to the lower part of the furnace door. Repeat the above several times until the furnace door is lifted to the point where the upper hook can be lifted. During the process of gradually lifting the furnace door upwards, attention should be paid to keeping the padded pads stable to avoid accidents in which the pads tip over or collapse and injure people. The upper part of the furnace door must be tied with a steel rope to prevent the furnace door from falling over. During the lifting process, the furnace door will gradually stand upright. The driver should operate the door taker to move forward, and tighten the steel rope if necessary. When the upper hook can be hooked into the oven door lifting hook, the hook is operated to lift the oven door, and then the steel rope and pad are removed to resume coke oven production. (3) The furnace door is leaning against the furnace frame, and the upper and lower hooks are unhooked. During processing, if the lower hook is not far from the lifting hook at the bottom of the furnace door, since there is a connecting spring in the middle of the lifting hook rod, you can use a crowbar to push down the lower hook and try to hook it into the lifting hook before proceeding to the next step. If the lower hook is too far away from the lower lifting hook and cannot be hooked in, a steel rope can be used to fasten the upper part of the furnace door to the door machine to prevent it from tipping over. Then use another steel rope to wrap the lower horizontal iron of the furnace door, hang it on the hook of the door lifter, gradually lift the furnace door, and re-tighten and replace the steel rope after each lift. Repeat this several times until the lower hook is hooked into the lifting hook, and then proceed to the next step. (4) The furnace door falls on the stove top or falls under the furnace. This is the most serious situation of the furnace door falling over. You should drive a coke push truck to the furnace door repair station to get a spare furnace door, first resume normal production of the coke oven, and then use a crane to lift the overturned furnace door to the furnace door repair station for repair.