Dust collector side air inlet device and bag dust collector

Abstract

The invention discloses a dust collector side air inlet device and a bag dust collector. The side air inlet device comprises a first air flow diffusion chamber and a second air flow diffusion chamber.The first air flow diffusion chamber is provided with a first air inlet and a first air outlet. The second air flow diffusion chamber is provided with a second air inlet and a second air outlet. Thefirst air inlet is used for receiving the exhaust gas. The first air outlet is connected to the second air inlet. The second air outlet is connected to a dust collector. A first porous air distribution plate is arranged at the first air outlet. A second porous air distribution plate is arranged at the second air outlet. The area of the first air inlet is less than that of the first air outlet. Thearea of the second air inlet is less than that of the second air outlet. Through the air flow diffusion chambers and the porous air distribution plates, the air speed at the inlet of the dust collector is greatly reduced, the inlet air flow is evenly distributed, the eddy current is reduced, the secondary dust lifting is reduced, the filter bag scouring is reduced and the pressure loss of the dust collector is reduced so that the energy consumption of the dust removal system is reduced and the service life of the filter bag is prolonged.

Description

technical field [0001] The invention relates to an air inlet device of a dust collector and a bag dust collector. Background technique [0002] There are two common air intake methods for bag filter: bottom air intake and side air intake. The structure of the bottom air intake method is relatively simple and the cost is low, so it is a method that is often used. However, when cleaning dust, the direction of dust settlement is opposite to the direction of air intake airflow, which not only hinders the settlement of smoke and dust, but also easily generates eddy currents and "secondary dust". The airflow generated by the side air inlet method has a lower rising speed, and when the dust falls from the top of the dust collector into the ash hopper, the possibility of being taken away again is reduced. Under the premise of the same filtering wind speed, the same dust-containing gas flow rate and the same dust removal efficiency, the resistance loss of the side air inlet is smal...

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Problems solved by technology

[0003] However, the side air intake cannot be directly connected to the air inlet from the side of the dust collector, otherwise it will cause problems such as uneven distribution of the air intake airflow, dust particles washing the filter bag, etc.

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