Bypass of deduster

Abstract

The invention discloses a bypass of a deduster. The bypass which is arranged on the outside of the deduster is arranged on the air outlet of the deduster is characterized in that: the bypass comprises, mutually connected, an upper casing and a lower casing, the upper casing is provided with bypass valves, a separation plate is arranged between the upper casing and the lower casing, the separation plate is provided with bypass ports, and valve covers of the bypass valves are used for opening or closing the bypass ports through cooperating with the bypass ports; one side of the lower casing is provided with an opening which is communicated with the air outlet of the deduster through an air out flue; and the lower casing has a bucket structure, and the lower end of the lower casing is communicated with ash buckets of the deduster. Compared with present inner bypasses, the bypass with above structure can guarantee that there is strictly clean in the upper casing whether a smoke goes through the bypass, so making precision requirements of an offline system of the upper casing can be reduced; and the bypass of the invention has the characteristics of simple structure, convenient installation, convenient maintenance, low cost and the like.

Description

technical field [0001] The invention relates to flue gas dedusting equipment, in particular to a bypass of a deduster. Background technique [0002] The pulse bag filter used in modern industry is composed of upper box, middle box, ash hopper, ash unloading system, injection system and control system, etc. The air inlet enters the ash hopper through the lower part of the middle box, and some of the larger dust particles fall directly into the ash hopper due to inertial collision, natural settlement, etc. Other dust particles rise with the air flow and enter each bag room. After being filtered by the filter bag, The dust particles are trapped outside the filter bag, and the purified gas enters the upper box from the inside of the filter bag, and then is discharged into the atmosphere through the off-line valve and the air outlet. The dust deposited in the ash hopper is regularly or continuously discharged by the screw conveyor and the rigid impeller unloader. As the filteri...

AI Technical Summary

Problems solved by technology

However, many existing bypass devices are installed inside the dust collector. The existing problems are that the production accuracy of the offline system in the upper box is high, the production is difficult, the cost is high, and it is not easy to repair and maintain. , once the off-line valve plate of the upper box is not tightly sealed, dust will enter the upper box chamber and cause pollution, and it is not easy to be cleaned out

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