Dedusting technology of coke oven dedusting system

Abstract

The invention relates to the technical field of coke oven dedusting system, and especially relates to a dedusting technology of a coke oven dedusting system. The coke oven dedusting system comprises a main dedusting pipeline, a dedusting pipeline, a pulse bag type collector, an ash bin, a dedusting blower fan, a flue dust pipeline and a dedusting chimney. During operation in winter, flue dust enters into the newly added dedusting pipeline through the main dedusting pipeline; The newly added dedusting pipeline is provided with a dedusting pipeline valve, which is closed; a flame arrester is omitted; a dedusting branch pipeline is equipped with a draining water seal and added with a condensate water seal to discharge condensate water in the branch pipeline; the dedusting pipeline is newly added with an emergency valve; an emergency valve moving backwards technology is employed to satisfy blower fan need during low speed running and thoroughly solve a problem of condensation caused by excessive low temperature of the deduster in winter.

Description

technical field [0001] The invention relates to a coke oven dedusting system technology, which belongs to the technical field of coke oven dedusting system, in particular to a coke oven dedusting system dedusting process. technical background [0002] During the winter operation of the coke oven floor dust removal system of the North Coking Plant, the temperature of the flue gas drops significantly after passing through a long dust removal pipeline, especially after passing through the flame arrester. Water condensation occurs in the front branch pipe of the dust collector and cannot be discharged in time, and finally enters the dust collector Inside. At the same time, when the fan is running at low speed, a large amount of cold air drawn in from the extraordinary valve enters the dust collector through the dust removal pipe, which reduces the temperature in the dust collector, and further condenses the water vapor in the flue gas in the pipe, dripping to the extraordinary v...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a dedusting process of a coke oven dedusting system, the purpose of which is to effectively solve the problem that the flue gas temperature in front of the deduster is too low during winter operation, and adopts the method of throwing off the flame arrester so that the flue gas directly enters the deduster through the branch pipe; The condensed water seal is added to discharge the condensed water in the branch pipe; the extraordinary valve back movement process is adopted during winter operation, which not only meets the needs of the low-speed operation of the fan, but also completely solves the problem that the temperature of the dust collector is too low when the dust collector is running in winter And condensation problem

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