Method for controlling pressure in coke oven carbonization chamber through dividing into 14 segments

Abstract

The invention belongs to the field of control of coal gas in a coke oven carbonization chamber, and particularly relates to a method for controlling pressure in a coke oven carbonization chamber through dividing into 14 segments. According to the method, according to a coking time, coke oven carbonization is divided into 14 segments, a ram rod in a ram rod gas cylinder is positioned in different positions in different coking time segments so as to ensure achievement of micro positive pressure of the top and the bottom of the carbonization chamber, and meet negative pressure setting in control of pressure in the coke oven carbonization chamber. The method has the following beneficial effects that: pressure of the coke oven carbonization chamber is reasonable, such that suction fluctuation impact during coal loading is reduced, a smoking rate of the oven with no coal loading during suction fluctuation is reduced by 80%; and the appropriate pressure setting is adjusted, such that pressure in the carbonization chamber is stable so as to easily prolong a service life of the oven.

Description

technical field [0001] The invention belongs to the field of gas control in a coke oven carbonization chamber, in particular to a method for controlling the pressure in a coke oven carbonization chamber in 14 stages. Background technique [0002] PROVEN control system (pressure control in coke oven carbonization chamber) is one of the key equipment of coke oven. PROVEN system includes rising pipe, gas collecting pipe, mound rod cylinder, mound rod, ammonia water pipe, riser pipe, and the lower part is connected to the carbonization chamber. The air collecting pipe, the rear end is connected with the blower through the suction pipe. The mound rod cylinder is 0% when it is fully put down, 100% when it is fully lifted, and 64% is fully sealed. The mound rod is used to control the liquid level of ammonia water in the fixed cup, that is, to control the degree of sealing. The ammonia water pipe is used for injecting sealed ammonia water into the mound. Responsible for the expor...

AI Technical Summary

Problems solved by technology

In practical application, it is found that this process division and control method cannot make the pressure at the bottom and top of the carbonization chamber the most reasonable during coal carbonization, that is, it cannot achieve the simultaneous change of the pressure at the top and bottom of the carbonization chamber as the amount of water vapor evaporates and the amount of gas generated changes. Slightly positive pressure, the impact of volatiles on the furnace door cannot be minimized, and the control of smoke cannot be minimized

Moreover, due to technological and procedural reasons, the PROVEN negative pressure setting cannot be applied while ensuring positive pressure at the top and bottom of the carbonization chamber, which increases the burden on the site environment

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