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Tube bundle type dedusting and demisting device with liquid collection function

A technology for demisting device and liquid collection, which is applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of inability to meet the discharge index, multi-processing stages, affecting the processing effect, etc., and achieves high reliability, The effect of high efficiency and low resistance

Inactive Publication Date: 2017-04-26
南京宇行环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design form is not a big problem when there is only one-stage swirl flow assembly, but when the number of stages exceeds two, a considerable number of liquid droplets collected by the wall surface will be dispersed and entrained into the airflow for the second time, which will affect the treatment effect. In other words, to achieve the same effect, more treatment stages are required, and in severe cases, it cannot meet the requirements of emission indicators.

Method used

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  • Tube bundle type dedusting and demisting device with liquid collection function
  • Tube bundle type dedusting and demisting device with liquid collection function
  • Tube bundle type dedusting and demisting device with liquid collection function

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Embodiment 1

[0029] like Figure 1~3 , a tube-bundle type dedusting and mist removal device with liquid collection, the device includes n tube-bundle type dust-removal and mist-removal units, n≥1; the tube-bundle type dust-removal and mist-removal unit includes a demisting unit cylinder (6), There are 2 swirl components and 2 cylindrical outer cylinders (9) (i takes the value of 1) inside the demisting unit cylinder (6), and the one above the demisting unit cylinder (6) is the first Secondary swirl assembly (5), in the annular area between the cylinder body (6) of the demister unit (6) and the cylindrical outer cylinder (9) of the second-stage swirl assembly (5), a first-stage holding Liquid ring (4), the first-stage liquid-holding ring (4) is provided with a number of drain pipes; the first-stage swirl component (15) is located under the demisting unit cylinder (6). A first-stage liquid holding ring (15) is provided in the annular area between the cylinder body (6) of the demister unit (...

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Abstract

The invention discloses a tube bundle type dedusting and demisting device with a liquid collection function and belongs to the field of waste gas treatment. The device comprises n tube bundle type dedusting and demisting units, and n is greater than or equal to 1. Each tube bundle type dedusting and demisting unit comprises a demisting unit barrel, m rotational flow assemblies and m cylindrical outer barrels are arranged in the demisting unit barrel; each rotational flow assembly comprises a plurality of rotational flow blades and a central cylinder; liquid holding rings are arranged in annular zones between the demisting unit barrels and the cylindrical outer barrels; and a plurality of liquid discharge pipes are arranged on the liquid holding rings. According to the device, the problems that secondary entrainment is severe and the efficiency is low during multi-stage design in the prior art are solved, and the device has the advantages of high efficiency, low resistance, high practicability and reliability and the like.

Description

technical field [0001] The invention belongs to the field of waste gas treatment, and in particular relates to a tube-bundle type dedusting and demisting device with liquid collection for further removing dust in flue gas after wet desulfurization. Background technique [0002] At present, the existing coal-fired units in my country generally adopt the limestone-gypsum wet flue gas desulfurization process. Limestone, gypsum slurry, etc. in the state of fog droplets. With the increasing national environmental protection emission standards, it is necessary to perform deep dust removal on the clean flue gas after desulfurization. According to the newly promulgated "Emission Standards of Air Pollutants for Thermal Power Plants", the dust concentration emitted by the chimney is proposed to be 5mg / m 3 requirements. [0003] Dust and fog removal of flue gas is the most common process in the flue gas purification process. There are various types, but it is difficult to deal with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D45/16B01D45/18
CPCB01D45/16B01D45/18
Inventor 徐海涛周长城沈凯
Owner 南京宇行环保科技有限公司
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