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Dust-removing and demisting device and application method thereof

A technology for demisting devices and mechanical dust removal, which is applied in the direction of combined devices, separation methods, chemical instruments and methods, etc., can solve the problems of difficult transformation, large space occupation, and high energy consumption in operation, and achieve the goal of saving initial investment and operating costs Effect

Active Publication Date: 2016-07-06
BEIJING ZHONGNENG NUOTAI ENERGY SAVING & ENVIRONMENTAL PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although wet electrostatic precipitator can effectively remove tiny particles, there are many problems in wet electrostatic precipitator, such as large and bulky process equipment, large space occupation, high initial investment, high energy consumption in operation, and difficulty in retrofitting existing projects.

Method used

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  • Dust-removing and demisting device and application method thereof
  • Dust-removing and demisting device and application method thereof
  • Dust-removing and demisting device and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] see figure 1 A specific embodiment of the present application provides a dust and mist removal device 2, which is installed above the top spray layer 3 inside the wet desulfurization absorption tower 1, and the dust and mist removal device 2 includes at least one dust and mist removal device. The mist unit 21 , the sprayed and purified wet flue gas flows through the at least one dedusting and mist removal unit 21 for high-speed flow, and the flue gas from which dust and mist droplets have been removed is discharged through the flue gas outlet 4 of the wet desulfurization absorption tower 1 .

[0043] The number of dust and mist removal units 21 in the wet desulfurization absorption tower 1 is determined by the diameter of the wet desulfurization absorption tower 1, and the arrangement of the largest number shall prevail.

[0044] Specifically, the dust and mist removal device 2 is installed 1 to 3 meters above the top spray layer 3 inside the wet desulfurization absorpt...

Embodiment 2

[0048] see figure 2 The dust and mist removal unit 21 described in this application includes: a swirl cylinder 211 and a swirl plate type mechanical dust and mist removal device 212 placed inside the swirl cylinder 211 .

[0049]The swirl plate type mechanical dedusting and mist removal device 212 moves the dust and mist in the sprayed and purified wet flue gas to the wall of the swirl tube 211 .

[0050] Specifically, the swirl plate type mechanical dust and mist removal device 212 includes: a water pipe 212a, at least one flange 212b, at least one swirl plate 212c and at least one nozzle 212d.

[0051] The water pipe 212a is located in the middle of the cyclone cylinder 211 , for example, the water pipe 212a is located at the central axis of the cyclone cylinder 211 .

[0052] The at least one flange 212b is arranged at intervals on the outer wall of the water pipe 212a, a swirl plate 212c is arranged between the flange 212b and the inner wall of the swirl cylinder 211, an...

Embodiment 3

[0065] see figure 2 The dust and mist removal unit 21 further includes: a wet electrostatic precipitator 213 placed inside the cyclone cylinder 211 , and the wet electrostatic precipitator 213 is arranged on the upper part of the swirl plate type mechanical dust and mist removal device 212 .

[0066] The wet electrostatic precipitator 213 accelerates the dust and mist to move toward the wall of the cyclone cylinder 211 .

[0067] Specifically, the wet electrostatic precipitator 213 includes: a discharge electrode tube 213a opposite to the electrode of the cyclone cylinder 211 . For example, the electrode of the swirl cylinder 211 is an anode, and the discharge electrode tube 213a is a cathode discharge electrode tube. The cyclone cylinder 211 is made of materials such as stainless steel and conductive glass fiber reinforced plastic, and the discharge electrode tube 213a is made of materials such as lead or stainless steel.

[0068] The discharge electrode tube 213a is locat...

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Abstract

The invention provides a dust-removing and demisting device and an application method thereof. The dust-removing and demisting device is mounted above a spraying layer on a top layer in a wet-process desulfurization absorption tower; the dust-removing and demisting device comprises at least one dust-removing and demisting unit; sprayed and purified wet flue gas flows at a high speed through the at least one dust-removing and demisting unit; and flue gas without dust and mist drops is discharged through a flue gas outlet of the wet-process desulfurization absorption tower. According to the dust-removing and demisting device, only an inner space of the wet-process desulfurization absorption tower needs to be modified, and an external structure of the wet-process desulfurization absorption tower does not need to be changed, so that the initial investment and operation cost are saved.

Description

[0001] This application claims the priority of the invention patent application "mechatronic dust and mist remover" with application date of May 12, 2015 and application number 201510239376.2. The entire content of this application is included within the scope of this application by reference. technical field [0002] The present application relates to the technical field of wet desulfurization, in particular to a dust and mist removal device and an application method thereof. Background technique [0003] Desulfurization refers to fixing the sulfur element in coal into a solid by calcium base and other methods to prevent the formation of SO2 during combustion. At present, desulfurization methods can be divided into wet method, dry method and semi-dry (semi-wet) method according to the dry and wet state of absorbent and desulfurized product in the desulfurization process. Wet desulfurization technology is to desulfurize and treat desulfurized products in a wet state with a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00
CPCB01D50/00B01D50/40
Inventor 不公告发明人
Owner BEIJING ZHONGNENG NUOTAI ENERGY SAVING & ENVIRONMENTAL PROTECTION CO LTD