CN201380038Y - Grid-type wet desulphurization device - Google Patents

Grid-type wet desulphurization device Download PDF

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Publication number
CN201380038Y
CN201380038Y CN200920038131U CN200920038131U CN201380038Y CN 201380038 Y CN201380038 Y CN 201380038Y CN 200920038131 U CN200920038131 U CN 200920038131U CN 200920038131 U CN200920038131 U CN 200920038131U CN 201380038 Y CN201380038 Y CN 201380038Y
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CN
China
Prior art keywords
tower
absorption liquid
grid
grid layer
liquid distributor
Prior art date
Application number
CN200920038131U
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Chinese (zh)
Inventor
徐长香
罗静
傅国光
徐涛
张学辉
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江苏新世纪江南环保有限公司
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Priority to CN200920038131U priority Critical patent/CN201380038Y/en
Application granted granted Critical
Publication of CN201380038Y publication Critical patent/CN201380038Y/en

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Abstract

The utility model relates to a grid-type wet desulphurization device used for flue gas desulphurization. The device comprises an absorption tower, inside which a defogger, a water sprayer, a primary absorption liquid distributor and a secondary absorption liquid distributor are arranged from the top down; a crystallizing pond is arranged at the bottom of the tower; the two absorption liquid distributors are connected with the crystallizing pond at the bottom of the tower through out tower circulating pipes; a discharge port is formed at the bottom of the crystallizing pond; a primary grid layer is arranged between the primary absorption liquid distributor and the secondary absorption liquid distributor; a secondary grid layer is arranged below the secondary absorption liquid distributor; the primary grid layer adopts a grid packing made of plastic thin sheets which are arranged perpendicular to the flat surface of the tower; and the secondary grid layer consists of a ring rack and grid pieces in vertical and horizontal cross arrangement. The device has the advantages that the resistance is small, clogging is prevented, fully contact of gas and liquid is ensured, and the crystallization quality of the desulphurization byproduct is improved.

Description

The grating type wet desulphurization device

The utility model relates to a kind of desulfurization purifier of coal-fired flue-gas, particularly a kind of grating type wet desulphurization device.

China is containing profuse coal resources, also be maximum in the world coal production state and country of consumption, and the coal about 84% of China is directly burnt.Sulfur content height in the coal, the flue gas of its generation particularly industrial coal flue gas also contain SO except that producing a large amount of flue dust 2Etc. harmful components, environment is polluted.In the last few years, flue gas desulfurization purification techniques development was very fast, and wherein using more is to adopt the absorbent spray to absorb to remove SO in the flue gas 2The wet desulphurization technology.

Wet type desulfurizing can remove in the flue gas solvable composition and in and the corrosion composition in the gas, gas pollutant can be absorbed simultaneously with grit, safety relatively, cost is lower.But there is the problem of several respects at present in wet desulphurization: the one, and, absorbent often adopts atomizer to strengthen and the contacting of flue gas, but is unfavorable for growing up of solute nucleus like this, and the further processing of desulfurizing byproduct is brought difficulty; The 2nd,, flue gas concentration height, when dustiness is big easily causes filler or device to stop up; The 3rd,, use filler gas-liquid is fully contacted, but cause the device running resistance bigger.

Summary of the invention

The purpose of this invention is to provide a kind of grating type desulfurizer, this device running resistance is little, is difficult for stopping up, and can guarantee that gas-liquid fully contacts, and can improve the crystalline quality of desulfurization by-product.

The utility model grating type wet desulphurization device comprises the absorption tower, contain gas approach and clean exhanst gas outlet, be provided with demister, water spray thrower, firsts and seconds absorption liquid distributor in the tower from top to bottom, tower bottom is a crystallizing pond, two absorption liquid distributors link to each other with the tower bottom crystallizing pond with the tower outer circulating tube respectively, and discharging opening is arranged at the crystallizing pond bottom; Said one-level absorption liquid distributor and secondary absorb between the distributor and are provided with the one-level grid layer, and the below that secondary absorbs distributor is provided with the secondary grid layer; The grid packing that said one-level grid layer is made up of plastics book sheet, plastics book sheet are perpendicular to the tower planar alignment, and said secondary grid layer is made up of the grid sheet that encloses frame and intersect in length and breadth.

The one-level grid layer is a grid packing, adopts height 200-800mm, and voidage is greater than 95%, and specific area is greater than 400m 2/ m 3The regular plastic filler.

The grid sheet width 2-10mm of secondary grid layer, the high 10-100mm of sheet, sheet spacing 10-60mm.

Said one-level or secondary absorption liquid distributor are formed by being responsible for a plurality of ring pipes that link to each other jointly with the person in charge and communicate, and each is responsible for and ring pipe is evenly distributed with spray apertures.

The utility model adopts the two-stage grid layer of different structure to realize the dedusting and the desulfurization of flue gas respectively.One-level absorption liquid distributor makes spray liquid be membranaceous flowing downward on plastic tab, because the very thin broken liquid of plastic tab is very capable, drop is very thin, and gas fully contacts with liquid film, small droplet, and the gas-liquid mass transfer effect is improved greatly, can make SO 2Fully absorbed; Be the distribution of striated, voidage is quite high, and resistance drop is little, and the running resistance of whole device is also lower, also can eliminate the wall flow phenomenon.And the secondary grid layer is arranged orderly many grid sheets and the rising flue gas bumps against, and grit is separated from flue gas, thereby plays the effect of dedusting.In addition, the flase floor structure of secondary grid layer can play equally distributed effect to the slurries that descend, and therefore helps growing up of nucleus when the absorption liquid condensing crystallizing, can form bigger crystal grain.

In sum, this device adopts grid, can reduce device resistance, prevents to stop up, and can guarantee the abundant contact of gas-liquid, also can improve the crystalline quality of desulfurizing byproduct.

Description of drawings

Fig. 1 is the structural representation of grating type wet desulphurization device.

Fig. 2 is the structural representation of secondary grid layer.

Fig. 3 is the structural representation of absorption liquid distributor.

Among the figure, 1-demister, 2-one-level absorption liquid distributor, 3-one-level grid layer, 4-secondary absorption liquid distributor, the person in charge of 4-1-absorption liquid distributor, the ring pipe of 4-2-absorption liquid distributor, the 4-3-spray apertures, 5-secondary grid layer, 5-1-encloses frame, the 5-2-grid sheet, 6-water spray thrower, 7-agitator, the 8-circulating pump, 9-discharging pump, 10-absorption tower, crystallizing pond at the bottom of the 10-1-tower, 11-smoke inlet, the clean exhanst gas outlet of 12-.

The specific embodiment

As Fig. 1, gas approach 11 and clean exhanst gas outlet 12 are contained in absorption tower 10, are provided with demister 1, water spray thrower 6, one-level absorption liquid distributor 2, one-level grid layer 3, secondary absorption liquid distributor 4 and secondary grid layer 5 in the tower from top to bottom; The tower inner bottom part is crystallizing pond 10-1, the slurries outlet on the top of crystallizing pond 10-1 is connected with secondary absorption liquid distributor 4 by the tower external circulation line, the slurries outlet at the middle part of crystallizing pond 10-1 is connected with one-level absorption liquid distributor 3 by the tower external circulation line, and two circulation lines are equipped with circulating pump 8,8 ' respectively; The bottom slurries outlet of crystallizing pond is connected with after-treatment system by discharging pump 9; Crystallizing pond 10-1 is provided with side direction agitator 7.

Fig. 2 represents the structure of secondary grid layer 5, and it is made up of the grid sheet 5-2 that encloses frame 5-1 and intersect in length and breadth, forms equally distributed grate opening between the grid sheet 5-2.

One-level absorption liquid distributor 2 is identical with the structure of secondary absorption liquid distributor 4, as shown in Figure 3, the absorption liquid distributor is responsible for the pipe network that the 4-1 ring pipe 4-2 different with a plurality of diameters forms interconnection and intercommunication by two of cross, and each is responsible for and ring pipe is evenly distributed with spray apertures 4-3.

The one-level grid layer is a plastic grill packing.Packing sheet is vertical with the tower plane, can eliminate the deposition on surface under the washing away of air-flow and current substantially.

Claims (4)

1. grating type wet desulphurization device, comprise the absorption tower, contain gas approach and clean exhanst gas outlet, be provided with demister, water spray thrower, one-level absorption liquid distributor and secondary absorption liquid distributor in the tower from top to bottom, tower bottom is a crystallizing pond, discharging opening is arranged at the crystallizing pond bottom, and two absorption liquid distributors link to each other with crystallizing pond with the tower outer circulating tube respectively; Said one-level absorption liquid distributor and secondary absorb between the distributor and are provided with the one-level grid layer, and the below that secondary absorbs distributor is provided with the secondary grid layer; The grid packing that said one-level grid layer is made up of plastics book sheet, plastics book sheet are perpendicular to the tower planar alignment, and said secondary grid layer is made up of the grid sheet that encloses frame and intersect in length and breadth.
2. want 1 described grating type wet desulphurization device to comprise the absorption tower according to right, its feature one-level grid layer is a grid packing, adopts height 200-800mm, and voidage is greater than 95%, and specific area is greater than 400m 2/ m 3The regular plastic filler.
3. want 1 or 2 described grating type wet desulphurization devices to comprise the absorption tower according to right, the grid sheet width 2-10mm of its feature secondary grid layer, the high 10-100mm of sheet, sheet spacing 10-60mm.
4. want 3 described grating type wet desulphurization devices to comprise the absorption tower according to right, it is characterized in that said absorption liquid distributor by being responsible for and forming with a plurality of ring pipes that link to each other with the person in charge and communicate, each is responsible for and ring pipe is evenly distributed with spray apertures.
CN200920038131U 2009-01-23 2009-01-23 Grid-type wet desulphurization device CN201380038Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920038131U CN201380038Y (en) 2009-01-23 2009-01-23 Grid-type wet desulphurization device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920038131U CN201380038Y (en) 2009-01-23 2009-01-23 Grid-type wet desulphurization device

Publications (1)

Publication Number Publication Date
CN201380038Y true CN201380038Y (en) 2010-01-13

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CN (1) CN201380038Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102180529A (en) * 2011-03-30 2011-09-14 东南大学 L-shaped desulphurization wastewater flue gas evaporating plant
CN102974193A (en) * 2012-12-24 2013-03-20 上海建安化工设计有限公司 Tail gas absorbing tower
US10016721B1 (en) 2017-05-25 2018-07-10 Jiangnan Environmental Protection Group Inc. Ammonia-based desufurization process and apparatus
US10092877B1 (en) 2017-05-25 2018-10-09 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10099170B1 (en) 2017-06-14 2018-10-16 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US10112145B1 (en) 2017-09-07 2018-10-30 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization
US20190001267A1 (en) 2017-07-03 2019-01-03 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10207220B2 (en) 2017-03-15 2019-02-19 Jiangnan Environmental Protection Group Inc. Method and apparatus for removing sulfur oxides from gas

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102180529B (en) * 2011-03-30 2012-08-22 东南大学 L-shaped desulphurization wastewater flue gas evaporating plant
CN102180529A (en) * 2011-03-30 2011-09-14 东南大学 L-shaped desulphurization wastewater flue gas evaporating plant
CN102974193A (en) * 2012-12-24 2013-03-20 上海建安化工设计有限公司 Tail gas absorbing tower
US10207220B2 (en) 2017-03-15 2019-02-19 Jiangnan Environmental Protection Group Inc. Method and apparatus for removing sulfur oxides from gas
US10413864B2 (en) 2017-03-15 2019-09-17 Jiangnan Environmental Protection Group Inc. Method and apparatus for removing sulfur oxides from gas
US10406477B2 (en) 2017-03-15 2019-09-10 Jiangnan Environmental Protection Group Inc. Method and apparatus for removing sulfur oxides from gas
US10675584B2 (en) 2017-03-15 2020-06-09 Jiangnan Environmental Protection Group Inc. Method and apparatus for removing sulfur oxides from gas
US10092877B1 (en) 2017-05-25 2018-10-09 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10561982B2 (en) 2017-05-25 2020-02-18 Jiangnan Environmental Protection Group Inc. Ammonia-based desulfurization process and apparatus
US10471383B2 (en) 2017-05-25 2019-11-12 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10213739B2 (en) 2017-05-25 2019-02-26 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10343110B2 (en) 2017-05-25 2019-07-09 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10413865B2 (en) 2017-05-25 2019-09-17 Jiangnan Enviromental Protection Group Inc. Ammonia-based desulfurization process and apparatus
US10016721B1 (en) 2017-05-25 2018-07-10 Jiangnan Environmental Protection Group Inc. Ammonia-based desufurization process and apparatus
US10399033B2 (en) 2017-05-25 2019-09-03 Jiangnan Environmental Protection Group Inc. Ammonia-based desulfurization process and apparatus
US10406478B2 (en) 2017-05-25 2019-09-10 Jiangnan Environmental Protection Group Inc. Ammonia-based desulfurization process and apparatus
US10099170B1 (en) 2017-06-14 2018-10-16 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US10589212B2 (en) 2017-06-14 2020-03-17 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US10583386B2 (en) 2017-06-14 2020-03-10 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US10159929B1 (en) 2017-06-14 2018-12-25 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US10427097B2 (en) 2017-07-03 2019-10-01 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10618001B2 (en) 2017-07-03 2020-04-14 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10421040B2 (en) 2017-07-03 2019-09-24 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US20190001267A1 (en) 2017-07-03 2019-01-03 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10561984B2 (en) 2017-07-03 2020-02-18 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10556205B2 (en) 2017-07-03 2020-02-11 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10449488B2 (en) 2017-09-07 2019-10-22 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization
US10357741B2 (en) 2017-09-07 2019-07-23 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization
US10369517B2 (en) 2017-09-07 2019-08-06 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization
US10112145B1 (en) 2017-09-07 2018-10-30 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization

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CP01 Change in the name or title of a patent holder

Address after: 211100 No. 108, Tianyuan Road, Jiangning national hi tech Development Zone, Nanjing, Jiangsu, China

Patentee after: Jiangsu New Century Jiangnan Environmental Protection Co., Ltd.

Address before: 211100 No. 108, Tianyuan Road, Jiangning national hi tech Development Zone, Nanjing, Jiangsu, China

Patentee before: Jiangsu Jiangnan Environment Protection and Research Academy

C56 Change in the name or address of the patentee

Owner name: JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECT

Free format text: FORMER NAME: JIANGSU XINSHIJI JIANGNAN ENVIRONMENTAL PROTECTION CO., LTD.

CP02 Change in the address of a patent holder

Address after: 211100, No. 29, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing

Patentee after: Jiangsu New Century Jiangnan Environmental Protection Co., Ltd.

Address before: 211100 No. 108, Tianyuan Road, Jiangning national hi tech Development Zone, Nanjing, Jiangsu, China

Patentee before: Jiangsu New Century Jiangnan Environmental Protection Co., Ltd.

C56 Change in the name or address of the patentee
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Granted publication date: 20100113

CX01 Expiry of patent term