Dust collection system and dust collection method for dry type unloading of slag bin

Abstract

The invention provides a dust collection system and a dust collection method for dry-type unloading of a slag bin, and the system comprises a dust collection cover installed at the lower end of an outlet platform of a slag unloading pipe of the slag bin, a plurality of dust collection pipes, a dust collection header pipe, a bag-type dust collector and a dust collection fan; one ends of the dust collection pipes are connected with different positions of the dust collection cover, and the other ends are connected with the dust collection header pipe; one end of the dust collection header pipe is connected with the dust collection pipes, and the other end is connected with the bag-type dust collector; the bag-type dust collector is connected with the dust collection header pipe; the dust collection fan is connected with the bag-type dust collector, and clean air filtered by a filter bag of the bag-type dust collector is exhausted into the atmosphere through an outlet of the dust collection fan after being extracted by the dust collection fan; and the plurality of dust collection pipes, the dust collection header pipe, the bag-type dust collector and the dust collection fan are connected to form a closed reverse dust collection system. In the dry material unloading process, generated flying dust can be completely collected to the bag-type dust collector through the dust collection cover and the dust collection pipes, purified and then discharged to the atmosphere, in practical production application, the dust collecting and suppressing effect is very obvious, and the current environment-friendly requirement of unorganized emission is met.

Description

technical field [0001] The invention relates to the technical field of environmental protection and dust removal in thermal power plants, in particular to a dust collection system and a dust collection method for dry unloading of slag bins. Background technique [0002] With the gradual improvement of environmental protection requirements, the control of fugitive dust emissions has become increasingly stringent. The dry unloading method of the original slag bin adopts a dry bulk machine. The main components include a bag filter and a dry bulk head. The channel of the bag filter generates a certain negative pressure by the dust collection fan of the bag filter to collect the dust generated during the unloading process. Currently used dry bulk dust collection equipment, due to the equipment itself, the area of ​​the dust collection channel between the inner cylinder and the outer cylinder of the bulk head is limited, and the dust collection air volume has certain limitations....

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