Single carbonization chamber pressure automatic control device and control method thereof

Abstract

The invention relates to a single carbonization chamber pressure automatic control device and a control method thereof. The device comprises a straight bent pipe, an air cylinder actuator, an air pressure measurer, a high-low pressure ammonia water nozzle, a rapid flushing nozzle, a connecting rod, a piston, a sleeve pipe, a straight rod, a fixed cup and a conical head rod. The invention providesa single carbonization chamber pressure automatic control device and a control method thereof. During coal charging, negative pressure can be formed in the pipe to prevent smoking, wherein the pressure in the pipe can be controlled to be kept within a set value range in the coking process; when the ascending pipe cover is opened at the final stage of coking, a water seal is formed in the pipe to prevent air from entering the gas collecting pipe and prevent raw coke oven gas in the gas collecting pipe from overflowing. The device is high in control precision, simple in structure, easy to realize, sensitive to adjustment and long in service life.

Description

technical field [0001] The invention belongs to the technical field of coking gas control devices, and in particular relates to a single carbonization chamber pressure automatic control device and a control method thereof. Background technique [0002] The pressure of the coke oven carbonization chamber is one of the most important process control parameters in the coking process. High pressure will cause a large amount of harmful raw gas to leak out, which will not only cause serious pollution to the surrounding environment, but also damage the coke oven equipment due to combustion; It will cause coke combustion due to air entering the carbonization chamber, reduce the quality of coke, and burn the furnace body in severe cases, directly affecting the life of the coke oven. Therefore, stabilizing the pressure in the coking chamber of the coke oven has always been a difficult problem in the design and production operation of the coke oven. [0003] Domestic coke ovens genera...

AI Technical Summary

Problems solved by technology

During coking, the coking period of each carbonization chamber is different, resulting in unbalanced pressure in the carbonization chamber, which affects the quality of coke; and at the end of coking, the pressure in the carbonization chamber is too low and air enters the furnace body, which promotes the combustion of raw gas, increases the temperature of the gas system, and aggravates the problem. Cooling System Burden

[0004] Since the coke oven single carbonization chamber in most coking plants is still an old-fashioned flap structure, the pressure of the single carbonization chamber cannot be matched and controlled according to the coking process

Moreover, the automation transformation is inconvenient. At present, each furnace needs to manually operate the opening and closing of the rising pipe and the switching of high and low pressure ammonia water according to the time point for charging coal and pushing coke. The manual labor intensity is high, the number of operations is frequent, and it is easy to misuse

It is not conducive to the overall automation technology upgrade of the coking process

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