Cloth bag dust collector anti-condensation automatic control apparatus

Abstract

The invention relates to the field of dust removal equipment, particularly to a cloth bag dust collector anti-condensation automatic control apparatus. According to the structure of the cloth bag dustcollector anti-condensation automatic control apparatus, the wind outlet of a dust collector is provided with a first temperature sensor; a flue temperature adjustment device is arranged in the fluedischarge total pipeline of a boiler, and is communicated to the wind inlet of the dust collector; a temperature adjustment flue gas pipeline is communicated to the combustion chamber of the boiler, and is sequentially connected to a flue gas heat exchanger, an air heat exchanger, a fan and the flue temperature adjustment device; and a blowing gas storage tank is connected to the air heat exchanger and an air heater respectively through a pipeline, and the air heat exchanger and the air heater are respectively connected to the blowing pipeline of the dust collector. According to the present invention, the heat of the flue gas of the boiler combustion chamber is utilized, the two cooling are performed through the flue gas heat exchanger and the air heat exchanger, the mixing with the flue gas entering the flue discharge total pipeline of the boiler in the flue temperature adjustment device is performed, and the obtained material enters the dust collector; the first temperature sensor sets the preset temperature, and the control cabinet automatically controls the temperature of the flue gas entering the dust collector, such that the condensation of the cloth bag dust collector is effectively prevented, and the service life of the filtration bag is prolonged; and the blowing air is heated by the air heat exchanger or the air heater, such that the filtration bag condensation causedby the temperature of the blowing air being lower than the pressure dew point can be prevented.

Description

technical field [0001] The invention relates to the field of dust removal equipment, in particular to an automatic anti-condensation control device for a bag filter. Background technique [0002] The bag filter has the technical characteristics of high dust removal efficiency (up to 99.9%), and the dust content of the discharge meets the national environmental protection requirements. It is widely used in the flue gas dust removal of boilers and hot blast stoves. However, in actual operation, there are often factors such as air leakage from the dust collector, poor heat preservation, and the temperature of the injected air being lower than the pressure dew point. As a result, the temperature entering the flue gas chamber of the dust collector is lower than the dew point of the flue gas, resulting in dew condensation on the filter bag and occurrence of filter bag failure. Corrosion, bag sticking and other failures seriously shorten the service life of the filter bag and affec...

AI Technical Summary

Problems solved by technology

However, in actual operation, there are often factors such as air leakage from the dust collector, poor heat preservation, and the temperature of the injected air being lower than the pressure dew point. As a result, the temperature entering the flue gas chamber of the dust collector is lower than the dew point of the flue gas, resulting in dew condensation on the filter bag and occurrence of filter bag failure. Corrosion, bag sticking and other faults seriously shorten the service life of the filter bag and affect the normal operation of the dust collector

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