Pipe and bag combined dust collector

Abstract

The invention relates to a pipe and bag combined dust collector. The combined dust collector comprises a multi-pipe cyclone dust collector and a bag-type dust collector, wherein the multi-pipe cyclone dust collector is arranged at one side of the bag-type dust collector, and connected with an inlet flue; an outlet flue is arranged at the other side of the bag-type dust collector; the bag-type dust collector is connected with a screw conveyer through a plurality of conveying pipelines; a star-type feeder is arranged on each conveying pipeline; a manual gate valve is arranged at the top end of each conveying pipeline and is close to the joint of the conveying pipeline and the bag-type dust collector; a plug board is arranged on the inlet flue. The combined dust collector has the beneficial effects that 80% of dust is removed by the first-stage multi-pipe dust collector, so that impact and abrasion on a cloth bag are reduced, the ash removal frequency is reduced, and the service life of a cloth bag and an electromagnetic pulse valve is prolonged; the combination probability of liquid and dust particles can be effectively increased by a cyclone dust removal mechanism of multi-pipe dust removal, so that the humidity of smoke is reduced, and the possibility of moisture condensation of the cloth bag is also reduced.

Description

technical field [0001] The invention relates to a tube-bag composite dust collector. Background technique [0002] Dust collector is a device that separates dust from flue gas, called dust collector or dust removal equipment. The performance of the dust collector is expressed by the amount of gas that can be handled, the resistance loss when the gas passes through the dust collector, and the dust removal efficiency. At the same time, the price, operation and maintenance costs, service life and difficulty of operation and management of the dust collector are also important factors to consider its performance. Traditional dust collectors mainly include multi-tube dust collector and bag filter. If used alone, multi-tube dust collector can only remove large particles of dust, while bag filter can only remove fine dust, and both have many rights of use. Mainly reflected in: 1. The traditional two-stage dust collector occupies a large area and the flue connection is complicated;...

AI Technical Summary

Problems solved by technology

Mainly reflected in: 1. The traditional two-stage dust collector occupies a large area and the flue connection is complicated; 2. The traditional two-stage dust collector has high operating costs and cannot dynamically adjust the operating load; 3. Existing boiler flue gas is often wrapped in cloth bags As a high-efficiency dust collector, the flue gas temperature of the boiler is extremely high under the condition of abnormal combustion; the "four tubes" of the water wall, superheater, reheater, economizer and other boilers burst during the operation of the boiler After that, the moisture in the flue gas will increase; the oil content in the flue gas will be too high when the boiler is fully fueled for combustion at startup.

If the bag filter is bypassed directly during abnormal operation, it will inevitably cause direct discharge of dust.

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