Boiler chimney dust collection system and dust collection method

Abstract

The invention relates to the technical field of dust collection, and discloses a boiler chimney dust collection system and a dust collection method. The system comprises a water drain device, a spraying device, a water pump, a sampler, a detector and a controller, wherein the water drain device is mounted at the bottom of a chimney and is positioned below an air inlet pipeline; the spraying device is mounted in the chimney and is positioned above the air inlet pipeline; the spraying device is connected with the water pump outside the chimney; the sampler is mounted in the chimney and is positioned above the spraying device; the sampler is connected with the detector mounted outside the chimney; the detector is connected with the controller; the controller is connected with the water pump. The boiler chimney dust collection system is particularly suitable for a boiler chimney of a sugar factory; the spraying device is arranged in the chimney; meanwhile, the sampler and the detector are used for monitoring the concentration of smoke dust discharged from the chimney in real time, and the flow of the spraying device can be adjusted in time according to the concentration of the smoke dust from the chimney, so that the smoke can be in effective contact with spraying water, and the dust collection effect is enhanced; therefore, the concentration of the smoke dust discharged by the boiler chimney meets the national standard.

Description

technical field [0001] The invention relates to the technical field of dust removal, in particular to a boiler chimney dust removal system and a dust removal method. Background technique [0002] Most of the boiler flue gas dust removal in sugar factories uses water film dust collectors. The dust collectors remove dust from the flue gas and then discharge them through the chimney. The efficiency of this kind of dust collectors is low. When the flue gas flow exceeds the dust removal capacity, the dust will exceed the standard, which does not meet the emission requirements. [0003] The national standard for boiler flue gas emission is getting higher and higher, and the concentration of boiler flue dust emission is changed from the original 100mg / m 3 down to 30mg / m 3 , This has brought great pressure to the sugar factory. The inventor found that if a new bag filter is added, the investment is huge. If the original filter is modified, its potential is also very limited and ca...

AI Technical Summary

Problems solved by technology

[0002] Most of the boiler flue gas dust removal in sugar factories uses water film dust collectors. The dust collectors remove dust from the flue gas and then discharge them through the chimney. The efficiency of this kind of dust collectors is low. When the flue gas flow exceeds the dust removal capacity, the dust will exceed the standard, which does not meet the emission requirements

[0003] The national standard for boiler flue gas emission is getting higher and higher, and the concentration of boiler flue dust emission is changed from the original 100mg / m 3 down to 30mg / m 3 , This puts great pressure on the sugar factory. The inventor found that if a new bag filter is added, the investment will be huge. If the original filter is modified, its potential is also very limited and cannot meet the production needs.

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