CN104888594B - Closed multilevel water curtains desulphurization system - Google Patents

Closed multilevel water curtains desulphurization system Download PDF

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Publication number
CN104888594B
CN104888594B CN201510056096.8A CN201510056096A CN104888594B CN 104888594 B CN104888594 B CN 104888594B CN 201510056096 A CN201510056096 A CN 201510056096A CN 104888594 B CN104888594 B CN 104888594B
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water
tower
disk
tube
polywater
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CN104888594A (en
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李新光
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Liangshan Xuyang Smoke-free Energy Conservation and Environmental Protection Equipment Co., Ltd.
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李新光
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Abstract

The invention discloses a kind of closed multilevel water curtains desulphurization systems, including boiler, tower, holder, the boiler is connect with the tower by pipeline, the tower lower part is equipped with smoke inlet, top in the tower is equipped with recirculated water sparge pipe, discharge flue is arranged in the tower side, and smoke outlet is arranged on the discharge flue;The tower internal upper part is provided with demister, water diversion disk is set below the demister, tower bosom position is provided with column, the column is equipped with the water curtain cap that two-stage or more is intervally arranged from top to bottom, it is equipped in the both sides of the tower inner tube wall and is alternatively arranged two layers or more polywater disk from top to bottom, the bottom of the tower is equipped with sewage draining exit, and the sewage draining exit is connected to treatment tank.Ensure that the flue gas of boiler can reach discharge standard and desulfuration efficiency is high, while realizing the decontamination of sewage by desulfurization and recycling for water resource, saves water resource.

Description

Closed multilevel water curtains desulphurization system
Technical field
The present invention relates to a kind of coal-burning boiler desulphurization system more particularly to a kind of closed multilevel water curtains desulphurization systems.
Background technology
The flue dust that coal-burning boiler, stove discharge every year is up to more than 400,000,000 tons, and environment for the survival of mankind is made drastically to deteriorate, The technology that desulfurization and dedusting is carried out to flue dust increasingly attracts attention.Currently, the method for flue gas desulfurization have dry type flue gas desulfurizing technique, Spraying dry type flue gas desulfurizing technique, flyash dry type flue gas desulfurizing technology, wet fuel gas desulfurizing technology etc., wet process of FGD work Skill flow, form and mechanism are similar, mainly use lime stone (CaCO3), quick lime (CaO) or sodium carbonate (Na2CO3) Equal slurries make detergent, are washed to flue gas in reaction tower, to remove the SO2 in flue gas.This technique has 50 years History, after continuously improving and improving, Technical comparing is ripe, has desulfuration efficiency high (90%~98%), unit holds The advantages that amount is big, and coal adaptability is strong, and operating cost is relatively low and byproduct easily recycles.
In wet method mode, water curtain method desulfurization is a kind of widely used method, China Patent No. ZL200820078306.9 discloses a kind of tower type water-curtain desulfurizing dust-removal device, in the water curtain cylinder and dehydration tube of this device up and down It has been alternatively arranged multilevel water curtains cap and dehydration cap, sulfur-containing smoke gas and shower water containing desulfurizing agent can be made along water curtain cap and dehydration The diffusion of cap is multi-level during pouring out to be come into full contact with, fuses, colliding, and greatly improves shower water to harmful in flue gas Substance removes dynamics, can get ideal desulfurization and dedusting effect, but the water curtain cap of the present apparatus and dehydration cap are all concentrated and be laid in tower The center of intracoelomic cavity, flue gas is not stopped effectively when being flowed along tower body internal chamber wall, therefore is reduced to this part cigarette The molten water of dirt and the effect of dehydration, it is not too ideal that harmful substance, which still has the possibility of escape, desulfurization effect,.
China Patent No. CN201454328 U disclose a kind of tower type energy-saving high-efficiency desulfurizer, and the device is in water curtain cylinder Barrel on be alternatively arranged multilayer polywater disk from top to bottom, be alternatively arranged from top to bottom on the barrel of dehydration tube multilayer dehydration Plate, polywater disk and dewatering plate are annular, and outer edge closely connect with the barrel of water curtain cylinder, dehydration tube respectively, centre be flue gas and Flow by circular hole, per strata water pond, the installation site of dewatering plate respectively in every layer of water curtain cap, be dehydrated the lower section of cap, the dress It sets and increases polywater disk and dewatering plate in water curtain cylinder and dehydration tube, polywater disk and dewatering plate are laid along cylinder inboard wall, to along cylinder The flue dust of wall flowing is effectively stopped, increases the contact area of flue dust molten water and dehydration, raising desulfurization effect, but water The water curtain that curtain cap is formed directly is beaten on polywater disk, will directly be left, cannot be formed closely knit water curtain, and flue gas can still pass through, Desulfurization is caused to be not thorough.
Equally, China Patent No. CN201454329 U disclose a kind of multilevel water curtains desulfurized dust collection column, although the device exists Polywater disk is increased in tower, the flue dust flowed along barrel is effectively stopped, is increased the molten water of flue dust and is connect with what is be dehydrated Contacting surface is accumulated, but the water curtain that water curtain cap is formed directly is beaten on polywater disk, will directly be left, cannot be formed closely knit water curtain, Flue gas can still pass through, and desulfurization is caused to be not thorough.
Moreover, recently as the enhancing of environmental consciousness, China's environmental standard is continuously improved, industrial furnace and boiler air The discharge of pollution performs stringenter standard, and existing desulfurizer is unable to reach new discharge standard, and desulfurization effect has It waits further increasing.The discharge of sewage after desulfurization recycles and needs the major issue solved.
Invention content
In order to solve the deficiencies in the prior art, the present invention provides a kind of closed multilevel water curtains desulphurization system, the programs Using water curtain desulfurization, it is ensured that the flue gas of boiler can reach discharge standard and desulfuration efficiency is high, while realize the dirt by desulfurization The decontamination of water and recycling for water resource save water resource, meet environmental requirement.
The technical solution adopted in the present invention is as follows:A kind of closed multilevel water curtains desulphurization system, including boiler, tower, Holder, the boiler are connect with tower by pipeline, and on the bracket, tower lower part is equipped with smoke inlet for the tower installation, Top in tower is equipped with recirculated water sparge pipe, and the tower side is arranged discharge flue, smoke evacuation is arranged on the discharge flue Mouthful;The tower internal upper part is provided with demister, and the demister is fixed on tower inner tube wall;Setting below the demister Water diversion disk, the water diversion disk are cone, and vertical cross-section is trapezoidal;Tower bosom position is provided with column, described vertical Column is equipped with the water curtain cap that two-stage or more is intervally arranged from top to bottom, and the water curtain cap is cone, and vertical cross-section is trapezoidal;Institute The both sides for stating tower inner tube wall are equipped with and are alternatively arranged two layers or more polywater disk from top to bottom, are formed between polywater disk described in both sides For flue gas and flow by circle hole shape, polywater disk one end closely connect with the tower inner tube wall, and other end setting is kept off Water plate, for the installation site of every grade of water curtain cap in the lower section of every strata water pond, the bottom of the tower is equipped with sewage draining exit, the blowdown Mouth connection treatment tank.
Sewage inlet and water outlet are provided in the treatment tank, the sewage inlet is connected to the blowdown Mouthful, the water outlet is connected to the recirculated water sparge pipe, is arranged along the direction interval of drainage flow in the treatment tank Raised water-stop sheet successively, the water-stop sheet setting are more than two.
The sewage outfalls setting has blowdown valve.
Clear water sparge pipe is set below the water diversion disk, and the recirculated water sparge pipe and the clear water sparge pipe are spray tube Or nozzle.
Setting supports the crossbeam of water diversion disk, water curtain cap in the tower, and supporting beam, the supporting beam is arranged on the column It is fixedly connected with the water curtain cap.
Sunpender is set on the tower inner wall, and the water diversion disk, the water curtain cap are fixed on the tower by the sunpender On cylinder inner tube wall.
The polywater disk vertical cross-section is trapezoidal, and the barrel of tower is trapezoidal one side, and in addition three sides make for stainless steel, The corrosion resistant poromerics of filling in trapezoidal cavity.
In a diameter of tower of the intermediate circular hole formed between the polywater disk being arranged on the inner tube wall of the tower both sides The distance of the 30-50% of barrel diameter, bottom to the bottom of the water curtain cap of the polywater disk are tower inner tube wall diameter 60-70%.
The polywater disk and water fender are fiber crops work made of stones.
The tower barrel is sandwich, and inner tube wall is made of corrosion resistant stainless steel material, and outer tube wall is ordinary steel Plate makes, and intermediate course fills corrosion resistant cementitious material.
The advantageous effect that technical solution provided by the invention is brought is:It is arranged on multilayer polywater disk and polywater disk in tower Water fender is set, it is ensured that spread from water curtain cap tilt and the lower water containing desulfurizing agent by the good water fender formation of polywater disk more Airproof water curtain, it is ensured that the flue gas entered from below to up comes into full contact with the water containing desulfurizing agent, fuses, and improves to flue gas Desulfurization effect;The sewage after haptoreaction will be carried out with flue gas and is discharged into treatment tank, and desulfurizing agent can be added in the water after decontamination Desulfurization is carried out again, realizes recycling for sewage, meets environmental requirement, while having saved water resource;Tower barrel, polywater Disk, water fender etc. all use resistant material, extend the service life of desulphurization system.It can be seen that the present invention and existing skill Art is compared, and has substantive distinguishing features outstanding and significant progress, beneficial effects of its implementation are also obvious.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the structural schematic diagram for the treatment of tank 9 of the present invention;
Fig. 3 is the schematic diagram of water diversion disk 14 in Fig. 1;
Fig. 4 is the scheme of installation of polywater disk 6 in Fig. 1;
Fig. 5 is the scheme of installation of water curtain cap 5 in Fig. 1;
In figure, 1 is tower, and 2 be smoke inlet, and 3 be smoke outlet, and 4 be recirculated water sparge pipe, and 5 be water curtain cap, and 6 be polywater disk, 7 be water fender, and 8 be sewage draining exit, and 9 be treatment tank, and 10 be sewage inlet, and 11 be water outlet, and 12 be water-stop sheet, and 13 be to hang Bar, 14 be water diversion disk, and 15 be crossbeam, and 16 be column, and 17 be demister, and 18 be holder, and 19 be clear water recirculated water sparge pipe, and 20 are Supporting beam.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.
Embodiment one
As shown in Figure 1, a kind of closed multilevel water curtains desulphurization system, including boiler, tower 1, holder 18, boiler and tower 1 is connected by pipeline, and tower 1 is installed on mount 18, and holder 18 is fixed on ground.1 lower part of tower is equipped with smoke inlet 2, Top in tower 1 is equipped with recirculated water sparge pipe 4, and 1 side of tower is arranged discharge flue, smoke outlet 3 is arranged on discharge flue, into Mouth 2 and smoke outlet 3 avoid flue gas from mixing in the same side and spaced-apart, or without the flue gas by desulfurization and dedusting from Smoke outlet 3 is discharged, and causes atmosphere pollution;1 internal upper part of tower is provided with demister 17, and demister 17 is fixed on 1 inner tube wall of tower On, demister 17 can fully absorb the moisture in the flue gas by water curtain desulfurization;Water diversion disk 14 is arranged in 17 lower section of demister, divides water 14 top of disk is equipped with recirculated water sparge pipe 4, and recirculated water sparge pipe 4 will rush the full water containing desulfurizing agent first in water diversion disk 14, and And ensure that water is constantly flowed out from water diversion disk 14;1 bosom position of tower is provided with column 16, column 16 be equipped with two-stage with On the water curtain cap 5 that is intervally arranged from top to bottom, it is ensured that the formation of water curtain;Between the both sides of 1 inner tube wall of tower are equipped with from top to bottom Every arranging two layers or more polywater disk 6, it is ensured that form airproof water curtain, the flue gas entered from bottom to top is made fully to be connect with water Touch, be fused, be formed as between both sides polywater disk 6 flue gas and flow by circle hole shape, 6 one end of polywater disk and 1 inner tube wall of tower Water fender 7 is arranged in close connection, the other end, it is ensured that the water assembled in polywater disk 6, every grade of 5 installation site of water curtain cap is at every layer The lower section of polywater disk 6 sets gradually demister 17, water diversion disk 14, polywater disk 6, water curtain cap 5, polywater disk in tower 1 from top to bottom 6, level-one water curtain cap 5 is arranged in water curtain cap 5, facilitates one strata water pond 6 of setting on water curtain cap 5;The bottom of tower 1 is equipped with sewage draining exit 8, sewage draining exit 8 is connected to treatment tank 9, and after smoke contacts, pouring down flows to the water of 1 bottom of tower and be discharged from sewage draining exit 8, It is handled into treatment tank 9.
Water containing desulfurizing agent is transported to by water pump the recirculated water sparge pipe 4 on 1 top of tower, recirculated water water spray first The flowing water into water diversion disk 14 below of pipe 4, until being full of water in water diversion disk 14, water overflows, along the external edge of water diversion disk 14 Along water curtain is formed, water curtain is got to flowing down on polywater disk 6, and the enough waters of aggregation in polywater disk 6 cross the spilling of water fender 7, Water curtain is formed along 7 outer of water fender, water curtain continues, to flowing down, to get on water curtain cap 5, flow flows down to be formed along water curtain cap 5 A large amount of water mists, the water level-one level-one containing desulfurizing agent toward flow down encounter it is fused convenient for flue gas from the flue gas from bottom to top of smoke inlet 2, Reaction, achievees the effect that desulfurization;Flue gas by desulfurization is discharged by smoke outlet 3;The sewage for reaching 1 bottom of tower passes through blowdown Mouth 8 is discharged in treatment tank 9, and the water handled by treatment tank 9 can recycle, and can so realize the water of flue gas Curtain desulfurization.
As shown in figure 3, preferably, water diversion disk 14 is cone, vertical cross-section is trapezoidal, it is ensured that forms airproof water Curtain, realization water curtain and flue gas come into full contact with.
As shown in figure 5, preferably, water curtain cap 5 is cone, vertical cross-section is trapezoidal, it is ensured that more water mists, it is ensured that sulfur-bearing Flue gas comes into full contact with water mist and chemically reacts.
Preferably, demister 17 is more than one, and the present embodiment is two, and demister 17 is avoided to be occupied in tower excessively More stages water curtain cap 5 and polywater disk 6 can be arranged in space, it is ensured that desulfurization is more thoroughly abundant;Two groups of demisters 17 of setting are true simultaneously The fog protected in the flue gas Jing Guo water curtain desulfurization can be fully absorbed by two layers of demister 17.
As shown in Fig. 2, preferably, sewage inlet 10 and water outlet 11, sewage inlet are provided in treatment tank 9 10 connection sewage draining exits 8, water outlet 11 are connected to recirculated water sparge pipe 4, are set along the direction interval of drainage flow in treatment tank 9 Raised water-stop sheet 12 successively is set, sewage enters treatment tank 9 from sewage inlet 10, water proof is arranged in treatment tank 9 Plate 12, sewage precipitation can carry out certain in each water-stop sheet 12 until being more than water-stop sheet 12 to height of the sewage in pond The sewage of precipitation could enter next water-stop sheet 12.
Preferably, water-stop sheet 12 is arranged more than two, it is ensured that sewage can be precipitated fully, realize processing and the cycle of sewage It utilizes.
Preferably, sewage draining exit 8 is provided with blowdown valve, facilitates the discharge of control sewage, can be according to the storage of sewage in tower 1 With the situation in treatment tank 9, the discharge of sewage is adjusted by blowdown valve.
Preferably, 14 lower section setting clear water sparge pipe 19 of water diversion disk, recirculated water sparge pipe 4 and clear water sparge pipe 19 are spray Pipe or nozzle turn recirculated water to the recirculated water sparge pipe 4 of 1 internal upper part of tower, recirculated water spray by water pump and water conveyance conduit The water that water pipe 4 sprays flows into water diversion disk 14, and spray tube or nozzle can better assure that the stability of flow, it is ensured that Continuously water curtain can be formed in tower 1, and desulfurization process fully is carried out to flue gas;After a period of time, it can be sprayed by clear water Water pipe 19 sprays downwards clear water, 1 cohesion water pond 6 of cleaning tower, water curtain cap 5,1 bottom of tower etc., it is ensured that sewage can all flow Go out and not in 1 bottom deposit of tower.
Preferably, the crossbeam 15 of support water diversion disk 14, water curtain cap 5 is set in tower 1, and crossbeam 15 undertakes a part of water diversion disk 14 and water curtain cap 5 weight, strengthen entire tower 1, improve 1 stability of tower and fastness.
Preferably, supporting beam 20 is set on column 16, water curtain cap 5, the weight of support water curtain cap 5 are fixedly connected in supporting beam 20 Amount, it is ensured that it is firm that water curtain cap is stablized.
Preferably, sunpender 13 is set on 1 inner wall of tower, and water diversion disk 14, water curtain cap 5 are fixed on by sunpender 13 in tower 1 On barrel, sunpender 13 undertakes the weight of a part of water diversion disk 14 and water curtain cap 5, increases the fastness of water diversion disk 14, water curtain cap 5 And stability.
As shown in figure 4, preferably, 6 vertical cross-section of polywater disk is trapezoidal, and the barrel of tower 1 is trapezoidal one side, in addition three Side is that stainless steel makes, the problem of avoiding polywater disk 6 from being flush with water, get rusty for a long time, and filling is corrosion-resistant in trapezoidal cavity Poromerics, select corrosion resistant poromerics as the filler of polywater disk, extend the service life of polywater disk, save at This.
Preferably, a diameter of tower 1 of the intermediate circular hole formed between the polywater disk 6 being arranged on 1 both sides inner tube wall of tower The distance of the 30-50% of inner tube wall diameter, bottom to the bottom of water curtain cap 5 of polywater disk 6 are the 60- of 1 inner tube wall diameter of tower 70%, it is ensured that the water curtain of formation and the formation of water curtain is successive and close airtight.
Preferably, polywater disk 6 and water fender 7 are fiber crops work made of stones, and numb stone has a characteristic of interior soda acid, in sweetening process inevitably Some acidic materials are will produce, using the polywater disk 6 and water fender 7 of numb stone material matter, its service life is extended, improves entire tower The service life of cylinder, it is cost-effective.
Preferably, 1 barrel of tower is sandwich, and inner tube wall is made of corrosion resistant stainless steel material, and outer tube wall is general Logical steel plate makes, and intermediate course fills corrosion resistant cementitious material, extends the service life of tower, cost-effective, meets environmental protection Principle.
Specific work process:
Sulfur-containing smoke gas is entered by the smoke inlet 2 of 1 lower part of tower in tower 1, while the recirculated water sparge pipe of 1 internal upper part of tower 4 spray water downwards, contain desulfurizing agent in water.Water diversion disk 14 is full of water by the flow sprayed downwards first, is overflowed from water diversion disk 14 Water forms water curtain in cavity space, and downward flow encounters multilevel water curtains cap 5 and polywater disk 6 forms the water mist of bigger, water curtain Cap 5 and polywater disk 6 considerably increase the contact area of flowing water and flue gas, and the water fender 7 being arranged on polywater disk 6 collects certain water Amount, water overflow the water curtain that water fender 7 forms bigger.The flue gas that flows up and the flow to flow downward, water curtain, water mist meet and Collision, during flowing and collision, water and flue gas are sufficiently mixed, the harmful substances such as sulphur in flue gas and devulcanizer Reaction is learned, while sulphur is also dissolved in water, the impurity such as dust are also mixed with water, are dropped down with flow.By above-mentioned reaction and dissolving, molten 1 congregate of water tower cylinder of conjunction, and be discharged by sewage draining exit 8, the flue gas of desulfurization is encountered 1 internal upper part of tower and is set by 1 uplink of tower The demister 17 set, after the processing of two layers of demister 17, flue gas is discharged by smoke outlet 3, achievees the purpose that desulfurization.Tower After 1 work a period of time, opens clear water sparge pipe 19 and spray clear water, 1 cohesion water pond 6 of cleaning tower, water curtain cap 5,1 bottom of tower Deng, it is ensured that sewage can all flow out and not in 1 bottom deposit of tower.The sewage being discharged by sewage draining exit 8 passes through sewage inlet 10 enter treatment tank 9, and the water-stop sheet 12 being arranged in treatment tank 9 ensures that sewage can be in treatment tank 9 fully Precipitation, after the sewage purification of precipitation, is flowed out by water outlet, realizes recycling for sewage.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (1)

1. a kind of closed multilevel water curtains desulphurization system, including boiler, tower, holder, the boiler are connected with tower by pipeline It connecing, on the bracket, tower lower part is equipped with smoke inlet for the tower installation, and the top in tower is equipped with recirculated water sparge pipe, It is characterized in that:Discharge flue is arranged in the tower side, and smoke outlet is arranged on the discharge flue;The tower internal upper part is set It is equipped with demister, the demister is fixed on tower inner tube wall;Water diversion disk is set below the demister, and the water diversion disk is Cone, vertical cross-section are trapezoidal;Tower bosom position is provided with column, and the column is equipped with two-stage or more from upper The water curtain cap being intervally arranged under and, the water curtain cap are cone, and vertical cross-section is trapezoidal;In the both sides of the tower inner tube wall Equipped with two layers or more polywater disk is alternatively arranged from top to bottom, be formed as between polywater disk described in both sides flue gas and flow by Circle hole shape, polywater disk one end are closely connect with the tower inner tube wall, and water fender, the peace of every grade of water curtain cap is arranged in the other end Holding position is equipped with sewage draining exit in the lower section of every strata water pond, the bottom of the tower, and the sewage draining exit is connected to treatment tank;Institute It states and is provided with sewage inlet and water outlet in treatment tank, the sewage inlet is connected to the sewage draining exit, the water outlet Mouthful be connected to the recirculated water sparge pipe, in the treatment tank along the direction interval setting of drainage flow successively it is raised every Water plate, the water-stop sheet setting are more than two;The sewage outfalls setting has blowdown valve;Setting clear water is sprayed water below the water diversion disk Pipe, the recirculated water sparge pipe and the clear water sparge pipe are spray tube or nozzle;Setting support water diversion disk, water in the tower The crossbeam of curtain cap, is arranged supporting beam on the column, the supporting beam is fixedly connected with the water curtain cap;It is set on the tower inner wall Sunpender is set, the water diversion disk, the water curtain cap are fixed on by the sunpender on the tower inner tube wall;The polywater disk is vertical Section is trapezoidal, and the barrel of tower is trapezoidal one side, and in addition three sides make for stainless steel, and filling is corrosion-resistant in trapezoidal cavity Poromerics;A diameter of tower of the intermediate circular hole formed between the polywater disk being arranged on the inner tube wall of the tower both sides The distance of the 30-5% of inner tube wall diameter, bottom to the bottom of the water curtain cap of the polywater disk are tower inner tube wall diameter 60-70%;The polywater disk and water fender are fiber crops work made of stones;The tower barrel is sandwich, and inner tube wall is corrosion resistant Stainless steel material is made, and outer tube wall makes for general steel plate, and intermediate course fills corrosion resistant cementitious material.
CN201510056096.8A 2015-02-03 2015-02-03 Closed multilevel water curtains desulphurization system Active CN104888594B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109045927A (en) * 2018-08-20 2018-12-21 宁波卓成化纤有限公司 A kind of high temp glass steel desulfurizing tower
CN109316905A (en) * 2018-10-19 2019-02-12 曹红卫 A kind of flue gas desulfurization technique
CN109012046A (en) * 2018-10-19 2018-12-18 曹红卫 A kind of desulfurizing tower water distribution method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0949627A (en) * 1995-08-10 1997-02-18 Toyo Gijutsu Kogyo Kk Dust/toxic gas removing device for smoke
CN201249098Y (en) * 2008-08-15 2009-06-03 李昌福 Tower type water-curtain desulfurizing dust-removal device
CN201454329U (en) * 2009-07-14 2010-05-12 李新光 Desulfuration and dust removal tower with multilevel water curtains

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0949627A (en) * 1995-08-10 1997-02-18 Toyo Gijutsu Kogyo Kk Dust/toxic gas removing device for smoke
CN201249098Y (en) * 2008-08-15 2009-06-03 李昌福 Tower type water-curtain desulfurizing dust-removal device
CN201454329U (en) * 2009-07-14 2010-05-12 李新光 Desulfuration and dust removal tower with multilevel water curtains

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Effective date of registration: 20190221

Address after: 272600 Shuipo Building Material Market No.6, Liangshan County, Jining City, Shandong Province

Patentee after: Liangshan Xuyang Smoke-free Energy Conservation and Environmental Protection Equipment Co., Ltd.

Address before: 221700 Li Tun East Team 289, Shizhai Town, Fengxian County, Xuzhou City, Jiangsu Province

Patentee before: Li Xinguang