Multistage tube bundle type dust removal and frog removal device

A technology of a mist removal device and a multi-stage tube, which is applied in the directions of combination devices, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of poor separation efficiency, rising investment and operating costs, and difficulty in meeting emission requirements for mist eliminators. Achieve the effect of reducing investment and operating costs, reducing the number of swirl components, and improving collectability

Pending Publication Date: 2017-06-13
南京宇行环保科技有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] This type of mist eliminator realizes the separation of droplets or particles by centrifugal force. When the load is low or the particle size is too small, the separation efficiency is poor because the centrifugal force is small or the centrifugal force is not enough to separat

Method used

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  • Multistage tube bundle type dust removal and frog removal device
  • Multistage tube bundle type dust removal and frog removal device
  • Multistage tube bundle type dust removal and frog removal device

Examples

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Embodiment 1

[0032] Such as Figure 1~3 And 7, a kind of multi-stage tube-bundle type dedusting and mist removal device, this device is positioned at the top of the spray layer in the absorption tower, described device comprises n-stage tube-bundle type dedusting and mist eliminators from bottom to top, connected in at least two stages A condensation device (3) is provided between the tube bundle type dedusting and mist removal devices; the tube bundle type dedusting and demisting device comprises m tube bundle type dedusting and demisting units (13), and the described tube bundle type dedusting and demisting units (13 ) comprises a cylindrical outer cylinder (8) and z swirl components located in the cylindrical outer cylinder (8), and the swirl components include several swirl vanes (9) and a center cylinder (7), The swirl blades (9) are evenly distributed in the annular area between the outer wall of the central cylinder (7) and the inner wall of the cylindrical outer cylinder (8) at an ...

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Abstract

The invention discloses a multistage tube bundle type dust removal and frog removal device and belongs to the field of waste gas treatment. The device is arranged above a spraying layer in an absorption tower and comprises n stages of tube bundle type dust removal and frog removal devices from bottom to top, and a coagulation device is arranged between at least one group of the tube bundle type dust removal and frog removal devices which are connected; the coagulation device comprises an atomization pipeline, and a plurality of atomization nozzles are formed in the atomization pipeline. The multistage tube bundle type dust removal and frog removal device disclosed by the invention, by adding the coagulation device between different rotational flow component layers, improves the probability that inertial collision, interception and coagulation occur between small granular dust and sprayed-in coagulation liquid drops, the property of being collected of dust is improved, removal efficiency is improved at the same number of stages of rotational flow components, or the number of stages of the rotational flow components required for achieving the same efficiency is reduced, and investment and operation costs are reduced.

Description

technical field [0001] The invention belongs to the field of waste gas treatment, and in particular relates to a multi-stage tube bundle type dust and mist removal device. 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 the saturated wet flue gas containing a large number of mist droplets. In orde...

Claims

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Application Information

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IPC IPC(8): B01D50/00
CPCB01D50/40
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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