Coke dry quenching novel efficient primary dust collector

Abstract

A coke dry quenching novel efficient primary dust collector includes a primary dust collector housing; one end of the primary dust collector housing is provided with a gas inlet; the bottom of the primary dust collector housing is provided with an ash bucket; a part, at one side of the ash bucket far away from the gas inlet, of the primary dust collector housing is internally provided with a primary dust collector rear wall; a part, at the top end of the primary dust collector rear wall, of the primary dust collector housing is provided with a gas outlet. A flue gas flow direction at the gas outlet of the primary dust collector can be changed, flue gas is prevented from directly scouring a boiler hanging pipe, and at the same time, heat exchange of the flue gas with a secondary superheater furnace pipe is facilitated; the flue gas enters an outlet pipeline of the primary dust collector after the flue gas passes through the primary dust collector rear wall and has the direction changed, the flue gas is in a rising state, and dust in the flue gas can be settled down and directly falls into the ash bucket, so as to conveniently collect the dust and the like.

Description

technical field [0001] The invention relates to a dust collector, in particular to a novel high-efficiency primary dust collector for CDQ. Background technique [0002] In the CDQ engineering design, the temperature of the circulating gas passing through the primary dust collector is between 800 and 980 °C, and contains coke dust. In order to reduce the impact of high-temperature coke dust on the entire CDQ equipment, a primary dust collector and a secondary dust collector are used for dust removal. The primary dust collector is mainly to remove larger particles of coke powder. After the high-temperature circulating gas passes through the gravity dust removal of the primary dust collector, when the high-temperature gas enters the boiler, it will form a strong erosion on the boiler hanging pipe. Since the boiler hanging tube generally does not adopt protective measures, and the material is not high, it is the weak link in the boiler tube. Facing the continuous erosion of h...

AI Technical Summary

Problems solved by technology

Facing the continuous scour of high-temperature air flow, it will cause the explosion of the hanging tube of the boiler, which will affect the entire CDQ production

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