Combined three-stage efficient desulfurization dust-removal system and method thereof

Abstract

The invention provides a combined three-stage efficient desulfurization dust-removal system and a method thereof. The system comprises a dry dust remover internally provided with a turboseparator, a desulfurization purification tower and a centrifugal hydroextractor which are arranged between a flue gas generating device and a chimney in sequence and are communicated by an connecting channel, wherein a venturi is arranged at the front of the tangential inlet of the desulfurization purification tower, and a draught fan is arranged between the centrifugal hydroextractor and the chimney. In the method, firstly about 90% dust particles are removed in the dry dust remover by dry dust removal, then wet desulphurization dust removal is carried out in the venturi and the desulfurization purification tower for many times, and finally dehydration, dehumidify and discharge are carried out in the centrifugal hydroextractor. The wear of flue gas on the device is reduced with high dust removal efficiency and the invention enjoys good desulfurization effect, stable property, long service life and easy operation, thus thoroughly overcoming the disadvantages of easy corrosive wear of other desulfurization dust-removal devices.

Description

technical field [0001] The invention relates to the technical field of desulfurization and dust removal, in particular to a combined three-stage high-efficiency desulfurization and dust removal system and method. Background technique [0002] The flue gas produced by industrial boilers burning coal contains sulfur and dust. If it is directly discharged into the nature, it will seriously pollute the environment. Therefore, desulfurization and dust removal are required. The existing desulfurization and dust removal equipment mostly adopts integrated desulfurization and dust removal equipment. The desulfurization and dust removal equipment is used for desulfurization and dust removal in the same container. When the induced draft fan starts and stops, the wind pressure and flow rate are too low, causing frequent blockage of the equipment, and at the same time, the induced draft fan carries water, and the desulfurization and dust removal performance is unstable due to the frequenc...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of low and unstable desulfurization and dust removal effects and short service life, the present invention provides a combined three-stage high-efficiency desulfurization and dust removal system, which has good dust and desulfurization effects, stable performance, long service life and simple operation

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