CN204637887U - Multistage many cyclones demist dust arrester - Google Patents

Multistage many cyclones demist dust arrester Download PDF

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Publication number
CN204637887U
CN204637887U CN201520320208.1U CN201520320208U CN204637887U CN 204637887 U CN204637887 U CN 204637887U CN 201520320208 U CN201520320208 U CN 201520320208U CN 204637887 U CN204637887 U CN 204637887U
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demist
absorption tower
cyclone cylinder
interior
dust arrester
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CN201520320208.1U
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赵云才
王亮
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BEIJING NOROMO ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.
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田鹏程
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Abstract

The utility model relates to multistage many cyclones demist dust arrester, comprise absorption tower, the outside top on absorption tower is provided with exhanst gas outlet, the outer middle side part on absorption tower is provided with gas approach, the inside bottom on absorption tower is provided with stock tank, and being arranged at the spraying layer of inwall on absorption tower, the top of spraying layer is provided with some demist dedusters and the lattice support body for fixing described demist deduster.Superior effect of the present utility model is: the SR of multistage many cyclones demist dust arrester is little, and demist udst separation effect is high.When equal purifying rate, the not power consumption of the utility model multistage many cyclones demist dust arrester, energy consumption is low, avoids traditional wet cleaner and stops when cleaning electric discharge to cause the defect of dust emission peak value.Meanwhile, also solve the problem that space requirement is high, difficulty large, transformation cycle length, initial cost and operating cost are high of electric precipitation transformation, only need to utilize original absorption tower to transform, do not change the external structure on absorption tower.

Description

Multistage many cyclones demist dust arrester
Technical field
The utility model relates to flue gas advanced purification technology field, is specifically related to a kind of multistage many cyclones demist dust arrester.
Background technology
At present, Chinese industrial tail gas, gas pollution control technology are more, wherein comparative maturity, representative technology have: the Wet Flue Gas Desulfurization Technique such as limestone-gypsum method, ammonia process, Dual alkali administering sulfur dioxide pollution, all need to install demister and remove the fine droplet produced in spray process after the spray washing purification of Wet Flue Gas Desulfurization Technique; With regard to current actual conditions, no matter be that Flat defroster or ridge type demister are difficult to reach efficiency meet the requirement of environmental protection to the removal efficiency being less than in 5um drop and flue gas the finely ground particles such as aerocolloidal sulfate radical, inferior sulfate radical, nitrate anion, nitrite anions being less than 5um dust and forming PM2.5.For meeting more and more strict environmental requirement, wet desulphurization device rear end all needs to install Wet type electric dust-removing device additional and carries out appropriateness purification.Although wet-esp effectively can remove finely ground particles, wet-esp also exists process equipment both bulk, and take up room large, initial cost is high, and operation energy consumption is high, and constructed item transforms the problems such as difficulty is large.
Publication number is that the China of CN104226073A discloses a kind of demist dust arrester for fume treatment and flue gas demist dust pelletizing system, comprises cooling device, wherein: the heat absorbing part of described cooling device is positioned on the path of flow of flue gas; Described flue gas can be cooled to below water dew point by the heat absorbing part of described cooling device; The heat absorbing part of described cooling device comprises at least one heat exchanger tube, wherein: the cooling medium output port of the radiator portion of described cooling device is connected with the cooling medium inlet of described heat exchanger tube, the cooling medium input port of the radiator portion of described cooling device exports with the cooling medium of described heat exchanger tube and is connected.The heat absorbing part of described cooling device comprises the described heat exchanger tube of at least two rows, wherein: described heat exchanger tube is fluoroplastics material, and often arranges described heat exchanger tube and comprises at least two described heat exchanger tubes; Described in every root, the axial direction of heat exchanger tube is all perpendicular with the flow direction of described flue gas; The axial line of the described heat exchanger tube in same row is in the same plane, and the extension direction of described plane parallels with the flow direction of described flue gas; Spacing dimension between the described heat exchanger tube of adjacent row is 2 ~ 3 times of described heat exchanger tube diameter dimension.This demist dust arrester is traditional dedusting defogging equipment, and complex structure power consumption is large, improvement cost is high, poor practicability.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of multistage many cyclones demist dust arrester for high-effective dust-removing demist after wet desulphurization device spray.
The utility model is achieved through the following technical solutions:
Multistage many cyclones demist dust arrester, comprise absorption tower, the outside top on absorption tower is provided with exhanst gas outlet, the outer middle side part on absorption tower is provided with gas approach, the inside bottom on absorption tower is provided with stock tank, and being arranged at the spraying layer of inwall on absorption tower, the top of spraying layer is provided with some demist dedusters and the lattice support body for fixing described demist deduster; Described demist deduster adopts upper and lower tandem to arrange; Described demist deduster comprises interior cyclone cylinder and is arranged at the interior cyclone blade of interior cyclone cylinder inside, described interior cyclone blade is extended out to the inwall of interior cyclone cylinder by the center of interior cyclone cylinder, the center of interior cyclone cylinder is provided with wash tub pipe, flooding nozzle in described wash tub pipe is provided with and is communicated with it; The outside of interior cyclone cylinder is provided with some with its coaxial outer cyclone cylinder arranged, described wash tub pipe extends to outer cyclone cylinder up or down by interior cyclone cylinder, between described interior cyclone cylinder and outer cyclone cylinder, is equipped with outer cyclone blade between outer cyclone cylinder and outer cyclone cylinder.
Described technical scheme is preferably, and the wash tub pipe be arranged between interior cyclone cylinder with outer cyclone cylinder is provided with the outer flooding nozzle be communicated with it.
Described technical scheme is preferably, the angle of inclination of described interior cyclone blade and outer cyclone blade all at 20 °-60 ° and its projection Duplication-20%-+50%.
Described technical scheme is preferably, and described wash tub pipe is provided with coaxial blind cylinder arranged with it.
Described technical scheme is preferably, and the distance between described spraying layer and demist deduster is 1-3m.
Described technical scheme is preferably, and all adopts blind plate shutoff between described demist deduster and between demist deduster and the inwall on absorption tower.
Described technical scheme is preferably, and the material of described interior cyclone blade, outer cyclone blade all adopts acid-resistant stainless steel, the one added in the carbon steel of painting glass flake anticorrosive coat, fiberglass, PP and PVC.
Multistage many cyclones demist dust arrester described in the utility model is used for desulfurizer, is specially adapted to the demist dedusting aerosol particle thing after the spraying layer of wet desulphurization device.The operation principle of multistage many cyclones demist dust arrester described in the utility model is: the kinetic energy utilizing flue gas in absorption tower, when flue gas cyclone blade, outer cyclone blade in demist dust arrester, the finely ground particles such as fine drop, fine solid particle particle, aerosol produced between interior cyclone blade and the barrel of interior cyclone cylinder, between described outer cyclone blade and the barrel of outer cyclone cylinder in the gas-liquid impingement flue gas reunion that collides with each other is condensed into larger drop.Spray atomized water in order by the flooding nozzle be arranged in interior cyclone cylinder and outer cyclone cylinder, afterwards the inner surface of interior cyclone cylinder and outer cyclone cylinder set up liquid film catch cohesion after drop, and then reach the object removing particulate burning purifying flue gas.Flue gas is after flowing through interior cyclone blade and outer cyclone blade, become by original flowing vertically upward and rotate flowing of rising, dust granules in flue gas and drop under the influence of centrifugal force inwardly the inwall of cyclone cylinder and outer cyclone cylinder move, thus more efficiently remove drop, dust granules in flue gas.
Compared with prior art, superior effect of the present utility model is: the SR of described multistage many cyclones demist dust arrester is little, and demist udst separation effect is high.The finely ground particles such as the fine droplet in flue gas, fine solid particle particle, aerosol effectively can be removed by this device.Flue gas through spraying layer purification after through demist deduster; described demist deduster and above form violent rotation and the disturbance of gas-liquid two-phase; the molecules such as the fine drop in flue gas, dust granules, aerosol are collided with each other reunite to be condensed into larger drop and larger drop is caught the purification object reaching and remove finely ground particles again by the liquid film of the inwall of interior cyclone cylinder and outer cyclone cylinder; thus the removal efficiency of finely ground particles in raising flue gas; efficiency of dust collection is high, reaches 5mg/Nm 3below.
Compared with traditional wet-esp realizing effect same, when equal purifying rate, the not power consumption of the utility model multistage many cyclones demist dust arrester, energy consumption is low, avoids traditional wet cleaner and stops when cleaning electric discharge to cause the defect of dust emission peak value.Meanwhile, the utility model also solves the problem that the space requirement of electric precipitation transformation is high, difficulty large, transformation cycle length, initial cost and operating cost are high, only needs to utilize original absorption tower to transform, does not change the external structure on absorption tower.
Accompanying drawing explanation
Fig. 1 is the structural representation of multistage many cyclones demist dust arrester described in the utility model;
Fig. 2 is for the A-A of many cyclones demist dust arrester multistage described in Fig. 1 is to sectional structure schematic diagram;
Fig. 3 is the structural representation of demist dust arrester described described in Fig. 1.
Accompanying drawing mark is as follows:
Flooding nozzle in cyclone blade, 63-wash tub pipe, the blind cylinder of 631-, 64-, the outer cyclone cylinder of 65-, the outer cyclone blade of 66-, 67-outer flooding nozzle, 7-exhanst gas outlet, 8-blind plate in cyclone cylinder, 62-in 1-absorption tower, 2-stock tank, 3-gas approach, 4-spraying layer, 5-lattice support body, 6-demist deduster, 61-.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model detailed description of the invention is described in further detail.
As illustrated in the accompanying drawings from 1 to 3, multistage many cyclones demist dust arrester that the utility model provides, comprise absorption tower 1, the outside top on absorption tower 1 is provided with exhanst gas outlet 7, the outer middle side part on absorption tower 1 is provided with gas approach 3, the inside bottom on absorption tower 1 is provided with stock tank 2, and is arranged at the spraying layer 4 of inwall on absorption tower 1, and the top of spraying layer 4 is provided with some demist dedusters 6 and the lattice support body 5 for fixing described demist deduster 6; Described demist deduster 6 adopts upper and lower tandem to arrange; Described demist deduster 6 comprises interior cyclone cylinder 61 and is arranged at the interior cyclone blade 62 of interior cyclone cylinder 61 inside, described interior cyclone blade 62 is extended out to the inwall of interior cyclone cylinder 61 by the center of interior cyclone cylinder 61, the center of interior cyclone cylinder 61 is provided with wash tub pipe 63, flooding nozzle 64 in described wash tub pipe 63 is provided with and is communicated with it; The outside of interior cyclone cylinder 61 is provided with some with its coaxial outer cyclone cylinder 65 arranged, and described wash tub pipe 63 extends upwardly to outer cyclone cylinder 65 by interior cyclone cylinder 61; The outer cyclone cylinder 65 of arranged outside 3 of interior cyclone cylinder 61, between described interior cyclone cylinder 61 and outer cyclone cylinder 65, is equipped with outer cyclone blade 66 between outer cyclone cylinder 65 and outer cyclone cylinder 65.Described interior cyclone blade 62 and outer cyclone blade 66 concentric circular fashion assembled arrangement all.
In order to improve demist dust removing effects, by being arranged at the outer flooding nozzle 67 wash tub pipe 63 between interior cyclone cylinder 61 with outer cyclone cylinder 65 installed and is communicated with it.The orderly water spray of the interior flooding nozzle 64 that the utility model is arranged, outer flooding nozzle 67 sets up drop and micronic dust is caught moisture film and removed the pollutant on the inwall of interior cyclone cylinder 61, outer cyclone cylinder 66.The angle of inclination of described interior cyclone blade 62 and outer cyclone blade 66 all at 20 °-60 ° and its projection Duplication-20%-+50%.Described angle of inclination is for the cross section of demist deduster, the angle between cyclone blade 62 and its orthographic projection and the angle between outer cyclone blade 66 and its orthographic projection in specifically referring to.Described projection Duplication is the area sum of (interval area between overlapping area-all blade orthographic projections of all blade orthographic projections)/all blade orthographic projections.
Described wash tub pipe 63 is provided with coaxial blind cylinder 631 arranged with it, arranges the blind cylinder 631 coaxial with wash tub pipe 63 and is beneficial to the area of catching molecule, improves the effect of demist dedusting.Distance between described spraying layer 4 and demist deduster 6 is 1-3m.Blind plate 8 shutoff is all adopted between described demist deduster 6 and between the inwall on demist deduster 6 and absorption tower 1.The material of described interior cyclone blade 62, outer cyclone blade 66 all adopts acid-resistant stainless steel, the one added in the carbon steel of painting glass flake anticorrosive coat, fiberglass, PP and PVC.
Described multistage many cyclones demist dust arrester can arrange multiple haplotype demist deduster 6.If the diameter on absorption tower 1 is less, adopt a haplotype demist deduster.In each absorption tower 1, the quantity of haplotype demist deduster is determined by the diameter on absorption tower 1, is as the criterion with the arrangement of maximum quantity.Space between each haplotype demist deduster 6, between demist deduster 6 and absorption tower 1 tower wall adopts blind plate 8 shutoff, and described blind plate 8 plays spacing and fixing effect simultaneously.
Demist deduster 6 described in the utility model is three grades, and concrete progression is determined according to the final demist dust removing effects needed.Described interior cyclone blade 62, outer cyclone blade 66 realize change to the direction of motion of finely ground particles in flue gas and flue gas and acceleration, thus make water droplet and finely ground particles in flue gas form turbulent flow and fully clash into, make the reunion that collides with each other of the finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol be condensed into larger drop.Because flue gas is by interior cyclone blade 62, its type of flow be rotation rising interior cyclone cylinder 61, outer cyclone cylinder 65 in after outer cyclone blade 66, drop in flue gas is separated the inner surface reaching interior cyclone cylinder 61 and outer cyclone cylinder 65 under the influence of centrifugal force from flue gas, is then caught reach the efficient purification object removing finely ground particles by interior cyclone cylinder 61, outer cyclone cylinder 65 inner wall surface liquid film.Multistage many cyclones demist dust arrester described in the utility model is widely used in the gas cleaning of fire coal, fuel oil, combustion gas thermal power plant, metallurgy, chemical industry, solid waste (rubbish) treatment industry.
The utility model is not limited to above-mentioned embodiment, and when not deviating from flesh and blood of the present utility model, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into scope of the present utility model.

Claims (7)

1. multistage many cyclones demist dust arrester, comprise absorption tower, the outside top on absorption tower is provided with exhanst gas outlet, the outer middle side part on absorption tower is provided with gas approach, the inside bottom on absorption tower is provided with stock tank, and being arranged at the spraying layer of inwall on absorption tower, the top of spraying layer is provided with some demist dedusters and the lattice support body for fixing described demist deduster; It is characterized in that, described demist deduster adopts upper and lower tandem to arrange; Described demist deduster comprises interior cyclone cylinder and is arranged at the interior cyclone blade of interior cyclone cylinder inside, described interior cyclone blade is extended out to the inwall of interior cyclone cylinder by the center of interior cyclone cylinder, the center of interior cyclone cylinder is provided with wash tub pipe, flooding nozzle in described wash tub pipe is provided with and is communicated with it; The outside of interior cyclone cylinder is provided with some with its coaxial outer cyclone cylinder arranged, described wash tub pipe extends to outer cyclone cylinder up or down by interior cyclone cylinder, between described interior cyclone cylinder and outer cyclone cylinder, is equipped with outer cyclone blade between outer cyclone cylinder and outer cyclone cylinder.
2. multistage many cyclones demist dust arrester according to claim 1, it is characterized in that, the wash tub pipe be arranged between interior cyclone cylinder with outer cyclone cylinder is provided with the outer flooding nozzle be communicated with it.
3. multistage many cyclones demist dust arrester according to claim 1, is characterized in that, the angle of inclination of described interior cyclone blade and outer cyclone blade all at 20 °-60 ° and its projection Duplication-20%-+50%.
4. multistage many cyclones demist dust arrester according to claim 1, is characterized in that, described wash tub pipe is provided with coaxial blind cylinder arranged with it.
5. multistage many cyclones demist dust arrester according to claim 1, it is characterized in that, the distance between described spraying layer and demist deduster is 1-3m.
6. multistage many cyclones demist dust arrester according to claim 1, is characterized in that, all adopt blind plate shutoff between described demist deduster and between demist deduster and the inwall on absorption tower.
7. the multistage many cyclones demist dust arrester according to claim 1 or 3, is characterized in that, the material of described interior cyclone blade, outer cyclone blade all adopts acid-resistant stainless steel, the one added in the carbon steel of painting glass flake anticorrosive coat, fiberglass, PP and PVC.
CN201520320208.1U 2015-05-18 2015-05-18 Multistage many cyclones demist dust arrester Active CN204637887U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104874252A (en) * 2015-05-18 2015-09-02 田鹏程 Multistage multi-cyclone demisting and dedusting device
CN104906949A (en) * 2015-06-18 2015-09-16 田鹏程 Device for deep purification of wet desulphurization absorption towersmoke
CN105396409A (en) * 2015-12-08 2016-03-16 田鹏程 Improved multistage dual cyclone dust and mist eliminator
EP3338874A4 (en) * 2016-10-26 2018-10-17 Beijing Zhongneng Nuotai Energy Saving And Environmental Protection Co., Ltd. Desulfurization dust-removal fuel gas purification device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104874252A (en) * 2015-05-18 2015-09-02 田鹏程 Multistage multi-cyclone demisting and dedusting device
CN104906949A (en) * 2015-06-18 2015-09-16 田鹏程 Device for deep purification of wet desulphurization absorption towersmoke
CN104906949B (en) * 2015-06-18 2018-09-18 田鹏程 A kind of device for wet desulphurization absorption tower flue gas deep purifying
CN105396409A (en) * 2015-12-08 2016-03-16 田鹏程 Improved multistage dual cyclone dust and mist eliminator
CN105396409B (en) * 2015-12-08 2018-01-09 田鹏程 A kind of improved multistage double cyclone dedusting demisters
EP3338874A4 (en) * 2016-10-26 2018-10-17 Beijing Zhongneng Nuotai Energy Saving And Environmental Protection Co., Ltd. Desulfurization dust-removal fuel gas purification device

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TR01 Transfer of patent right

Effective date of registration: 20170814

Address after: 100097 Haidian District City, Changhua Road, No. 18, Crown Plaza building, room 321

Patentee after: BEIJING NOROMO ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.

Address before: 4 Hanwei International Plaza No. 186 Beijing 100097 Fengtai District South Fourth Ring Road No. 7 Building 7 layer

Patentee before: Tian Pengcheng

TR01 Transfer of patent right