Inert gas circulating device of dry quenching system

Abstract

The invention discloses an inert gas circulating device of a dry quenching system. The inert gas circulating device comprises a dry quenching furnace, a primary dust remover, a dry quenching waste heat boiler, a secondary dust remover, a primary cooling device, a fan and a secondary cooling device; the dry quenching system inert gas circulating device is composed of the dry quenching furnace, the primary dust remover, the dry quenching waste heat boiler, the secondary dust remover, the primary cooling device, the fan and the secondary cooling device, and the primary cooling device is composed of the heat exchanger body, the outer shell and the heat exchange pipeline, the heat exchanger body and the outer shell are provided with the first mounting groove and the second mounting groove correspondingly, so that the air cavity is formed between the first mounting groove and the second mounting groove, and workers can conveniently and regularly clean the side walls of the first mounting groove and the second mounting groove through detachable mounting between the heat exchanger body and the outer shell; therefore, the heat conduction effect of the device is prevented from being influenced by soot accumulation, and the heat exchange efficiency is further prevented from being influenced.

Description

technical field [0001] The invention relates to the related technical field of coke dry quenching system, in particular to an inert gas circulation device of coke dry quenching system. Background technique [0002] The so-called dry coke quenching is relative to wet coke quenching, and refers to a coke quenching method that uses inert gas to cool red coke. Usually CDQ is the abbreviation of coke dry quenching. In the process of dry quenching, red coke at 1000°C is loaded from the top of the CDQ furnace, and low-temperature inert circulating gas at 130°C is blown into the red coke in the cooling section of the CDQ furnace by a circulating fan. In the layer, the sensible heat of red coke is absorbed, and the cooled coke (less than 200°C) is discharged from the bottom of the CDQ furnace, and the high-temperature inert gas from the annular flue of the CDQ furnace flows through the CDQ boiler for heat exchange, and the boiler produces The steam and the cooled inert gas are reblo...

AI Technical Summary

Problems solved by technology

Usually CDQ is the abbreviation of coke dry quenching. In the process of dry quenching, red coke at 1000°C is loaded from the top of the CDQ furnace, and low-temperature inert circulating gas at 130°C is blown into the red coke in the cooling section of the CDQ furnace by a circulating fan. In the layer, the sensible heat of red coke is absorbed, and the cooled coke (less than 200°C) is discharged from the bottom of the CDQ furnace, and the high-temperature inert gas from the annular flue of the CDQ furnace flows through the CDQ boiler for heat exchange, and the boiler produces The steam and the cooled inert gas are reblown into the CDQ furnace by the circulating fan, and the inert gas is recycled in the closed system, but the structure used for cooling the inert gas in the traditional CDQ system is relatively simple, which leads to its inertness. Gas cooling efficiency is slow, which affects the overall production and processing efficiency of the system

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