A dry-process vertical electrostatic precipitator for gas

Abstract

The invention provides a dry method vertical electric dust remover for coal gas. The dry method vertical electric dust remover comprises a dust remover body, the bottom of the dust remover body is provided with an air inlet, the bottom of the dust remover body is provided with a ring of an annular flow guiding tube and a plurality of metal filter screen filters, the annular flow guiding tube is connected with the air inlet, two transverse ports of the metal filter screen filters are connected with the annular flow guiding tube, and gas to be dedusted goes through the air inlet and the annular flow guiding tube, enters the metal filter screen filters, and flows through side surface filter screens of the metal filter screen filters. Most of the gas flows through the side surface filter screens of the metal filter screen filters, and grids of the filter screens are dense, so pressures in the channels of all the filter screens are basically similar to each other, thereby uniform flow-out of airflow and coarse dust removal are realized, uniform distribution of airflow is realized, and the dust removal efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of industrial gas dust removal, in particular to a dry-process vertical electric dust collector for gas. Background technique [0002] The high-voltage electrostatic precipitator is one of the main equipments for the treatment of high-temperature industrial flue gas and dust. Among them, the vertical electrostatic precipitator is recognized by the majority of users because of its small footprint and convenient ash transportation. However, due to the structure of the vertical electrostatic precipitator, the inlet and outlet airflows are not in the same direction, resulting in poor airflow uniformity inside the electrostatic precipitator, which greatly affects the dust removal efficiency. [0003] At present, the common vertical dust collectors on the market are tube-type wet electrostatic precipitators. Because of the low dust concentration at the inlet and the wet dust removal method, there will be no proble...

AI Technical Summary

Problems solved by technology

However, due to the structure of the vertical electrostatic precipitator, its inlet and outlet airflows are not in the same direction, resulting in poor airflow uniformity inside the electrostatic precipitator, which greatly affects the dust removal efficiency

[0003] At present, the common vertical dust collectors on the market are tube-type wet electrostatic precipitators. Because of the low dust concentration at the inlet and the wet dust removal method, there will be no problem of poor ash transportation. Therefore, the bottom of the general vertical wet electrostatic precipitators Air flow uniform distribution boards will be installed, but for dry vertical electrostatic precipitators with high dust inlet concentration, directly installing air distribution boards at the bottom will lead to poor ash discharge and affect normal equipment operation

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