Circulation ammonia water pipeline and coke oven non-stop production circulation ammonia water valve replacement method

Abstract

The present invention relates to a circulation ammonia water pipeline and a coke oven non-stop production circulation ammonia water valve replacement method. The circulation ammonia water pipeline comprises valves A-D, wherein the other end of a valve 10# is connected to the other end of a valve 8#, the other end of a valve 16#, one end of the valve D and one end of the valve A, and then is communicated to circulation ammonia water pipelines communicated to a furnace 1# and a furnace 2#, the other end of a valve 9# is connected to one end of the valve 16#, one end of a valve 11#, one end of the valve C and one end of the valve B, and then is communicated to circulation ammonia water pipelines communicated to a furnace 3# and a furnace 4#, the other end of a valve 13# is connected to the other end of the valve A and the other end of the valve B, and the other end of the valve D is connected to the other end of the valve C, and is communicated to a high pressure ammonia water pump inletpipeline so as to ensure the stable supply of high pressure ammonia water, wherein the valve replacement is achieved through the pump switching operation. According to the present invention, with themethod, the existing pipeline is transformed, the valves and the corresponding pipelines are additionally arranged, the valves are easy to replace, the influence of the ammonia water valve replacementon the coke shutdown can be avoided, and the problem that the absence of the ammonia water supply causes the shutdown of the two coke ovens can be solved.

Description

technical field [0001] The invention relates to the technical field of coking, in particular to a circulating ammonia water pipeline and a method for realizing the non-stop production of a coke oven to replace a circulating ammonia water valve. Background technique [0002] There are four 52-hole coke ovens in the coking department. There are three circulating ammonia water pumps in the gas purification operation area, 2 open and 1 standby. The circulating ammonia water provided by them is supplied to 1#, 2# ovens and 3#, 4# coke ovens for production respectively. Each ammonia water pump needs to be reversed every 6 months. The large ammonia water valve is prone to jamming and falling during the frequent opening and closing process. At this time, the large ammonia water valve needs to be replaced. Only one of the pumps can be operated during the replacement of the ammonia water valve, and the following problems will exist at this time: [0003] 1. The operation of a single ...

AI Technical Summary

Problems solved by technology

[0003] 1. A single circulating ammonia water pump can only supply two coke ovens for normal production

[0004] 2. The two coke ovens without ammonia water supply can only stop production, and can only replenish the water for a short time to keep the equipment from burning out, and the rising pipe, gas collecting pipe and other equipment will burn out after a long time

[0005] 3. The raw water finally enters the remaining ammonia water for ammonia distillation, and the ammonia distillation tower tray is prone to fouling and affects the tower efficiency

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