Flue gas collection device with multiple rows of staggered diversion tube bundles and triangular expansion cover

Abstract

The invention provides a smoke collecting device with a plurality of rows of staggered flow guide tube bundles and a triangular capacity expanding cover. The smoke collecting device comprises an exhaust hood arranged above a transmission belt, wherein a blanking hole and an air extracting hole are formed in the exhaust hood; a plurality of rows of detachable staggered flow guide tube bundles formed by flow guide tubes are mounted in the exhaust hood between the blanking hole and an air outlet; the flow guide tubes are perpendicular to the material running direction of the transmission belt; section layout of the plurality of rows of staggered flow guide tube bundles is divided into two areas; the area close to one side of the blanking hole is a front stop guide front; the area close to one side of the air outlet is a rear settling and flow-stabilizing area; the triangular capacity expanding cover is also arranged at the end of the exhaust hood. By virtue of the device, the dust can be reduced by horizontally washing the plurality of rows of staggered flow guide tube bundles; the smoke flow can be effectively guided; the capacity is expanded; the change of the dust amount generated instantaneously can be adjusted. Meanwhile, the uniformity of a flow field can be improved by coupling effect of the tube bundles and the capacity expanding cover.

Description

technical field [0001] The invention belongs to the field of dust suppression and dust reduction for transported materials, and relates to a tube bundle structure for dust reduction and dust collection, uniform flow field, and prevention of dust escape, in particular to a multi-row staggered guide tube bundle for preventing dust escape and a transient A flue gas collection device with a triangular expansion cover structure with a flue gas buffer function. Background technique [0002] Material conveying is widely used in conveying processes with different specifications and distances in the industrial and agricultural fields. There are often transfer stations during transportation, and materials usually fall from high-level belt conveyors or other feeding devices to low-level belt conveyors through chutes. The falling materials are easy to generate dust when they fall on the belt. The main reasons for the dust are as follows: 1. The materials falling at high speed induce th...

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Problems solved by technology

2. Due to the high momentum when the material collides with the surface of the belt conveyor, part of the momentum is lost after the collision, but part of the momentum is still not consumed. The small particle material with this momentum will increase with the amount of air entrained in the material during the collision. Released and migrated into the air to generate dust

Their improvement can play the role of dust reduction and dust collection to a certain extent, but the velocity on the section where the air outlet is located is relatively high, the static pressure is small, and the flow of dusty airflow is mainly concentrated on the surface of the belt conveyor. When the airflow velocity Enough to carry small-sized materials off the surface of the conveyor belt, the dust content in the exhaust hood will increase accordingly

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