Compact technological arrangement method of heat recovery coke oven high-temperature smoke system

Abstract

The invention relates to a compact technological arrangement method of a heat recovery coke oven high-temperature smoke system. An afterheat boiler is arranged between every two adjacent heat recoverycoke ovens; high-temperature smoke collecting pipes of all the heat recovery coke ovens are connected with inlets of the afterheat boilers; high-temperature smoke generated by every two adjacent heatrecovery coke ovens directly enters the afterheat boilers without passing through gas guide pipes for heat exchange by the afterheat boilers; low-temperature smoke pipes are arranged at the tops of the afterheat boilers, and are connected with fans and desulfurization and dedusting units in sequence; low-temperature smoke is discharged outside after desulfurization and dedusting; high-temperaturesmoke collecting gas communicating pipes are arranged between the heat recovery coke ovens arranged in parallel; low-temperature smoke collecting gas communicating pipes are arranged between the afterheat boilers arranged in parallel; and the high-temperature smoke of two heat recovery coke ovens arranged in parallel can be mutually introduced, and is exhausted after synchronously entering the corresponding boilers for treatment. The heat dissipation of the system is reduced; the temperature drop of the high-temperature smoke caused by leakage of the system is reduced; and the utilization rate of heat energy is high.

Description

technical field [0001] The invention relates to a compact technology for heat recovery coke ovens, and is mainly applied to the arrangement of high-temperature flue gas systems of various heat recovery coke ovens newly built, rebuilt and expanded. Background technique [0002] During the production and use of the heat recovery coke oven, the temperature of the high-temperature flue gas generated is between 850°C and 1200°C, and it reaches the waste heat boiler and subsequent sections through the high-temperature flue gas pipeline or is released into the atmosphere through the emergency chimney. During normal production, the entire system operates under negative pressure, and the suction of the system is realized by the fan behind the boiler. The high-temperature flue gas exchanges heat with the boiler, and the heat energy in the flue gas is absorbed by the boiler to generate steam, which can be used to generate electricity. The flue gas after heat exchange is introduced into...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a compact process layout method for heat recovery coke oven high-temperature flue gas system, shorten the pipeline system, reduce heat dissipation and leakage, improve heat energy utilization efficiency, and solve the problem of high-temperature flue gas during boiler maintenance. There is no problem of dealing with the release of pollution to the environment

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