Ultralow-dust emission bag type dust remover

Abstract

The invention discloses an ultralow-dust emission bag type dust remover. The ultralow-dust emission bag type dust remover comprises a box, a gas flue inlet, a gas flue outlet, air inlet flues, air outlet flues, a plurality of filter bag filtering units, an ash bucket, a gas purifying chamber, an ash cleaning system and a PLC (programmable logic controller) industrial computer, wherein the gas flue inlet and the gas flue outlet are formed in the box; the air inlet flue, the air outlet flue, the filter bag filtering units, the ash bucket and the gas purifying chamber are arranged inside the box through separating plates; the inside of every air inlet flue between the corresponding filter bag filtering unit and the ash bucket is provided with an air distributing stopping baffle, which is inclined towards an air inlet and is identical in width to the air inlet flue, for redistributing dusty gas flow entering the box, so that the dusty gas flow entering every filter bag filtering unit can be uniformly distributed to balance filtering load, and meanwhile, the dusty gas flow born by the circumferential surface of the filter bag of every filter bag filtering unit can be uniformly distributed, and further the filtering load of the filter bag can be balanced. Therefore, the service life of the filter bags can be effectively prolonged, and the dust removing efficiency and the purification efficiency of the ultralow-dust emission bag type dust remover can be improved.

Description

technical field [0001] The invention relates to a dust remover, in particular to a bag type dust remover with ultra-low emission of dust. Background technique [0002] At present, the bag filter used for dust collection and dust collection of dusty gas in cement plants, steel mills and other industrial production processes is an important environmental protection equipment to achieve industrial smoke and dust control emission standards. Its working principle is: under the gravitational force of the induced draft fan, the dust-laden gas enters the box from the air inlet of the dust collector, and the large particles of dust fall into the ash hopper first due to gravity and inertial collision, which plays the role of pre-collecting dust. The rest of the finer dust is filtered through the filter bags of each filter unit with the airflow, and the dust is blocked on the outer surface of the filter bag. The purified gas flows through the filter bag to the bag mouth and then to the...

AI Technical Summary

Problems solved by technology

However, due to the dusty gas entering the box under the gravitational force of the induced draft fan, on the one hand, the dusty gas flow that the filter bag of the filter unit far away from the air inlet of the flue is subjected to is greater than that of the filter bag of the filter unit near the air inlet of the flue. , resulting in an unbalanced dust load on the filter bags of each filter unit; on the other hand, the dust-laden gas flow borne by the filter bag near the flue is greater than the dust-laden gas flow borne by the filter bag far away from the flue, resulting in dust in the filter bag The load is unbalanced, which directly affects the service life of the filter bag and the dust removal efficiency and purification efficiency of the dust collector.

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