Exchange method of coking furnace basement gas heating system during overhauling of gas exchanger

Abstract

The invention relates to an exchange method of a coking furnace basement gas heating system during overhauling of a gas exchanger. The exchange is carried out by the use of an electric hydraulic cylinder and comprises the following steps: a chain block is hung by a chain block exchange method and a steel wire rope is stretched tightly; the exhaust gas hydraulic cylinder's two ends and exhaust gas stroke connecting parts are dismantled; the exhaust gas hydraulic cylinder and electric hydraulic cylinder pipelines are connected, and power connection is carried out for no-load test; the hydraulic cylinder position is turned to a position consistent with the exhaust gas stroke position after no-load test is normal, and an adapter between the exhaust gas stroke and the electric hydraulic cylinder is connected; the chain block is slowly loosened, and change of stroke is paid attention to during the loosening period; and according to exchange need, the electric hydraulic cylinder is used for exchange. According to the method, the electric hydraulic cylinder is adopted during the overhauling of the exchanger to replace a chain block, and exchange can be operated only by pressing a button. Exchange time is close to exchange time by the use of the exchanger. Thus, operating intensity of people can be greatly reduced, and requirements of coking furnace heating system are met. Heating is not affected, and gas leakage will not be caused.

Description

technical field [0001] The invention relates to a gas heating system in a coke oven basement, in particular to a method for exchanging the gas heating system in a coke oven basement when a gas exchange is overhauled. Background technique [0002] Coke oven, also known as coke oven, refers to a kiln equipment used to isolate coking coal from the air and heat it for a cycle to produce metallurgical coke or foundry coke while generating coke oven gas. There are many ways to classify modern coke ovens. According to the coal charging method, it can be divided into top-loading coke oven and side-loading coke oven; according to the type of heating gas, it can be divided into reheating coke oven and single-heating According to the way of air flow adjustment, it is divided into upper adjustable coke oven and lower adjustable coke oven; according to the way of elongated flame, it is divided into multi-stage heating coke oven, high and low lamp head type Coke oven, waste gas circulati...

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Problems solved by technology

[0009] Aiming at the disadvantages of using chain hoists in the prior art that the normal heating of the coke oven is greatly affected and the chance of gas leakage is increased, the technical problem to be solved by the present invention is to provide a method that can greatly reduce the operating intensity of people. Exchange method of gas heating system in coke oven basement during maintenance of gas exchange that affects heating and does not cause gas leakage

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