CN107198924B - A kind of self-loopa flue gas ash removal cooling tower and method - Google Patents

A kind of self-loopa flue gas ash removal cooling tower and method Download PDF

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Publication number
CN107198924B
CN107198924B CN201710482375.XA CN201710482375A CN107198924B CN 107198924 B CN107198924 B CN 107198924B CN 201710482375 A CN201710482375 A CN 201710482375A CN 107198924 B CN107198924 B CN 107198924B
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cooling tower
flue gas
filler
dedusting
water
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CN107198924A (en
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李印实
王睿
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Xian Jiaotong University
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Xian Jiaotong University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D49/00Separating dispersed particles from gases, air or vapours by other methods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00Direct-contact trickle coolers, e.g. cooling towers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Abstract

Porous blade wheel structure is applied in dust-extraction unit cavity by a kind of self-loopa flue gas ash removal cooling tower and method, makes full use of the from top to bottom flowing of doing work of the potential energy of water in cooling tower that dedusting impeller is driven to rotate clockwise, is not necessarily to extra work, realizes self-loopa function;The souring for taking full advantage of water in cooling tower simultaneously can function well as dustproof function, and guarantee that recirculated water can be recycled by strainer filtering;Certain facilitation is also played to the inflow of flue gas during wheel rotation;The absorption of contaminant particle in flue gas can be separated progress with washing away by porous blade wheel structure, be obviously improved efficiency of dust collection;Rotating clockwise for dedusting impeller is driven using flue gas and water reverse flow, it avoids flue gas and is directly contacted with water, the loss of the fume afterheat in dust removal process is avoided, while avoiding dust removal process and hindering flow of flue gas, greatly reduces the power consumption in dust removal process.

Description

A kind of self-loopa flue gas ash removal cooling tower and method
Technical field
The invention belongs to power plant for energy conservation technical fields, and in particular to a kind of self-loopa flue gas ash removal cooling tower and method.
Background technique
With the rapid industrial development in our country, the demand of electric power is also more and more, and China's generation current still relies on mostly Using raw coal as the boiler of fuel, and the pollutant that raw coal combustion is discharged in boiler brings very big harm to atmospheric environment, China's environmental improvement is set to face very big challenge, therefore recycling for particulate matter in flue gas and processing technique are also increasingly heavier It wants.And ingredient is very complicated in flue gas, and ash content, coal grain, oil droplet and high-temperature split product of fuel etc. are usually contained in flue dust, it is right The pollution of environment is the combined pollution of a variety of poisonous substances, is that harm is very big to human body.
Dust-extraction unit can separate dust from flue gas, therefore obtain more and more answering in flue gas ash removal With.Dust removal with machine, electric precipitation, dust removal by filtration and cleaning dust etc. can be divided by trapping mechanism dust removal method.Wherein machinery removes Dirt is removed dust using mechanical force from air-flow, and at low cost but efficiency of dust collection is lower;Electric precipitation using electrostatic force be dust with Air-flow separation, high dust collection efficiency but higher cost;Dust removal by filtration separates dust with gas by filtrate, not for high-temperature flue gas It is applicable in;Cleaning dust separates dust with gas with the collision of drop or liquid film by dust, and operating cost is higher.
It generally will use natural ventilation counterflow cooling tower in power industry at present.Its working principle is that: hot water flows into tower Water distribution system, hot water spray on filler top surface, falls by filler with the air intake space under filler and catchmented by water distribution system In packing area and hot water heat exchange, air heat absorption occur for pond, further air, and temperature increases, and density becomes smaller, with the air outside tower Density forms density contrast, and draft is generated in tower, enters atmosphere to tower upper direction to tower outlet, new air is from air inlet Packing area is finally covered by rain belt by herringbone column.This kind of cooling towers according to power industry cooling water flow it is big this Demand has the characteristics that processing capacity is big, operating cost is low.The wherein natural ventilation counterflow cooling tower of reinforced concrete shell The smallest drenching area is 600m2, maximum to have reached 13000m2More than, the few a few kiloton per hour of processing water, more reaches To 100,000 t or more per hour, such huge water flow potential energy generated from top to down can generate very strong power.
Therefore, a kind of self-loopa flue gas ash removal cooling tower using cooling tower water flow and potential energy urgently occurs.
Summary of the invention
In view of the above-mentioned problems of the prior art, the purpose of the present invention is to provide one kind to make full use of cooling tower water flow Potential energy and scouring force, combine with flue gas ash removal, under the premise of guaranteeing that cooling tower operates normally, realize idle dedusting, together When guarantee that flue gas heat is not suffered a loss and the not contaminated self-loopa flue gas ash removal cooling tower of recirculated water and flue gas ash removal method.
In order to achieve the above objectives, cooling tower of the invention includes cooling tower ontology and the tower that is arranged on cooling tower ontology Cylinder, is from top to bottom sequentially arranged water collection device, sparge pipe, spray head and filler, filler lower end is provided with cooling tower in tower Air inlet and herringbone column are provided with collecting-tank in the bottom of cooling tower ontology, arrange in cooling tower along cooling tower circumference array Several groups upper end be connected with herringbone column, the dust removing units that lower end is connected with collecting-tank, the dust removing units include shell Body and the exhanst gas outlet branch with exhanst gas outlet bypass valve of shell side upper and lower end is set and with gas inlet branch The gas inlet branch of road valve, in the shell other side, upper and lower end is respectively arranged with the fluid being connected with herringbone column and collecting-tank Enter, export, the gas inlet branches of each dust removing units and exhanst gas outlet branch pass through respectively gas inlet distribution circuit, Exhanst gas outlet distribution circuit is connected with gas inlet, the exhanst gas outlet with exhanst gas outlet valve with gas inlet valve, and Heart position is provided with central axis in the housing, and dedusting impeller is distributed in shell by center of circle circumference array of central axis, dedusting leaf The blade end and inner walls of wheel are in close contact, and the lower end slant setting in shell positioned at dedusting impeller has strainer, are being filtered The solidifying dirt outlet with solidifying dirt outlet valve is offered in the upper end housing of sieve bottom.
The cooling tower body central position is vertically installed with Central Shaft, is evenly distributed with around Central Shaft Perpendicular on the downside of cooling tower and with the bottom of pond portion link support column that catchments.
The filler using S wave filler, oblique mistake filler, step Trapezium oblique wave filler, poor position formula sine wave filler, Point wave filler, hexagon cellular filler, two-way wave filler or bias wave filler.
The shell include be provided with fluid entry and exit interior survey shell and be provided with exhanst gas outlet branch and flue gas into Shell on the outside of mouthful branch, interior side body are tapered divergent structure, tapered in central axis horizontal direction and and dedusting from top to bottom Impeller fitting, is from top to bottom divergent structure along central axis horizontal direction.
The exhanst gas outlet branch is tapered configuration, along flow of flue gas direction Stepwize Shrink.
The gas inlet branch is divergent structure, is gradually expanded along flow of flue gas direction.
The dedusting impeller uses the ceramic thermal insulation material of the porous structure with solid particle adsorption function to be made;
The strainer uses fabric or filter paper with the effect of particle supplementary set to be made.
Exhanst gas outlet bypass valve, gas inlet bypass valve, solidifying dirt outlet valve, gas inlet valve and the exhanst gas outlet valve Using automatic valve, power drive valve or hand-operated valve.
A kind of self-loopa flue gas ash removal method using above-mentioned cooling tower, it is characterised in that:
Step S100: hot water distribution: hot water flows into the sparge pipe of cooling tower, and sparge pipe is being filled out hot water spray by spray head Expect on top surface, flows to dedusting area by the air intake space under filler and filler, in packing area and hot water heat occurs for further air Exchange, air heat absorption, temperature increase, and density becomes smaller, and form density contrast with the atmospheric density outside tower, draft is generated in tower, to Tower upper direction to tower outlet enters atmosphere, and new air is finally covered and filled out by rain belt by herringbone column from air inlet Expect area;
Step S200: impeller rotation: the water of packing area from top to bottom flows through side body in dedusting area and collects by strainer flow direction Pond drives dedusting impeller to rotate clockwise during water flowing by potential energy;
Step S300: gas inlet valve, gas inlet bypass valve, exhanst gas outlet valve and exhanst gas outlet flue gas ash removal: are opened Bypass valve, flue gas flow through gas inlet valve and are assigned to each dust removing units by gas inlet distribution circuit, further from bottom to top Shell on the outside of dedusting area is flowed by gas inlet bypass line, wherein the rotation of dedusting impeller will drive flue gas and flow up, cigarette Contaminant particle by dedusting impeller adsorbs to obtain clean gas to gas in flow process in the outer shell body of dedusting area, clean gas by Shell outflow collects essential oil exhanst gas outlet distribution circuit through exhanst gas outlet branch on the outside of dedusting area and exhanst gas outlet pipeline is discharged, by Heat-barrier material is used in dedusting impeller, heat exchange does not occur in dust removal process;
Step S400: the dedusting impeller of contaminant particle dust processing: is adsorbed with clockwise by fume side into water inlet side, water Potential energy acting is from top to bottom flowed, and is washed away and taken away contaminant particle, band to the dedusting impeller for being adsorbed with contaminant particle There is the water of contaminant particle to flow through strainer filtering and flow out clean water and further flow into collecting-tank and participates in steam turbine water circulation, and mistake It filters the solidifying dirt left and then passes through the inclined solidifying dirt outlet valve of strainer flow direction, the solidifying dirt outlet valve of opening is discharged solidifying via the outlet of solidifying dirt Dirt, while the flowing of water continues to drive the rotation acting of dedusting impeller, is achieved in the lasting dustproof function of dust-extraction unit.
The present invention drives dedusting impeller to rotate clockwise and drives on flue gas by the potential energy acting of downlink water in cooling tower Row adsorbs the particulate pollutant in flue gas by porous structure in impeller, and the impeller with particulate pollutant rotates logical to water side It crosses fluid scouring and realizes dedusting function, this method, which circuits sequentially, realizes device self-loopa deashing function.
The present invention compared with the existing technology, has the following advantages that and effect:
(1) present invention makes full use of the potential energy of water in cooling tower to do work and from top to bottom flows, and has been further driven to dedusting leaf Wheel rotates clockwise, and is not necessarily to extra work, realizes present apparatus self-loopa function;
(2) present invention makes full use of the souring of water in cooling tower, can play dustproof function well;
(3) pressure difference caused by the rotary course of dedusting impeller of the present invention flows flue gas from bottom to top certain drive Effect, reduces the pump work of flow of flue gas;
(4) absorption of contaminant particle separates progress with washing away in flue gas of the present invention, greatly improves efficiency of dust collection;
(5) dedusting impeller of the present invention uses heat-barrier material, while impeller tip is closely coupled with shell, utilizes flue gas and water Reverse flow drives rotating clockwise for dedusting impeller, avoids flue gas and directly contacts with cleaning fluid, avoids in dedusting The loss of fume afterheat in journey, while avoiding dust removal process and hindering flow of flue gas, greatly reduce in dust removal process Power consumption.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
Fig. 2 is top view of the invention.
In figure, 1- tower, 2- water collection device, 3- sparge pipe, 4- spray head, 5- filler, 6- support column, 7- exhanst gas outlet branch Valve, surveys shell in the dedusting area 8-, shell on the outside of the dedusting area 9-, 10- dedusting impeller, 11- central axis, 12- gas inlet bypass valve, 13- strainer, 14- coagulate dirt outlet, and 15- coagulates dirt outlet valve, 16- gas inlet, 17- gas inlet valve, 18- collecting-tank, the center 19- Vertical shaft, 20- exhanst gas outlet distribution circuit, 21- exhanst gas outlet valve, 22- exhanst gas outlet, 23- exhanst gas outlet branch, 24- cooling tower Air inlet, 25- herringbone column, 26- gas inlet branch, 27- gas inlet distribution circuit.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1,2, the present invention includes the tower of cooling tower ontology and the hyperbola shape being arranged on cooling tower ontology Cylinder 1, is from top to bottom sequentially arranged water collection device 2, sparge pipe 3, spray head 4 and filler 5 in tower 1, and filler 5 should have increase to radiate Amount, increases heat exchange area, increases the functions such as heat exchange amount, water distribution uniformity the cooling water retention time of extension, should include S wave filler, oblique Staggeredly filler, step Trapezium oblique wave filler, poor position formula sine wave filler, point wave filler, hexagon cellular filler, two-way wave are filled out Material, bias wave filler.5 lower end of filler is provided with cooling tower air inlet 24 and herringbone column 25, in the bottom of cooling tower ontology It is provided with collecting-tank 18, cooling tower body central position is vertically installed with Central Shaft 19, around Central Shaft 19 uniformly Be distributed with perpendicular on the downside of cooling tower and with 18 bottom link support column 6 of collecting-tank, along cooling tower circumference array in cooling tower The several groups upper end of arrangement is connected with herringbone column 25, the dust removing units that lower end is connected with collecting-tank 18, the dedusting list Member includes shell and the exhanst gas outlet branch 23 and band with exhanst gas outlet bypass valve 7 that shell side upper and lower end is arranged in Have the gas inlet branch 26 of gas inlet bypass valve 12, in the shell other side upper and lower end be respectively arranged with herringbone column 25 and The fluid that collecting-tank 18 is connected enters, exports, the gas inlet branch 26 and exhanst gas outlet branch 23 of each dust removing units Respectively by gas inlet distribution circuit 27, exhanst gas outlet distribution circuit 20 with gas inlet valve 17 gas inlet 16, Exhanst gas outlet 22 with exhanst gas outlet valve 21 is connected, and heart position is provided with central axis 11 in the housing, solid using having Dedusting impeller 10 made of the ceramic thermal insulation material of the porous structure of body granular absorption function is with central axis 11 for center of circle Circle-Array In in shell, the blade end and inner walls of dedusting impeller 10 are in close contact column distribution, and dedusting impeller 10 is located in shell Lower end slant setting have strainer 13 made of fabric or filter paper with particle supplementary set effect, in the upper of 13 bottom of strainer The solidifying dirt outlet 14 with solidifying dirt outlet valve 15 is offered in end housing.
Shell of the invention includes being provided with the interior survey shell 8 of fluid entry and exit and being provided with 23 He of exhanst gas outlet branch 26 outside shell 9 of gas inlet branch, interior side body 8 are tapered divergent structure, tapered horizontal in central axis 11 from top to bottom Direction is simultaneously bonded with dedusting impeller 10, is from top to bottom divergent structure along 11 horizontal direction of central axis.
Exhanst gas outlet branch 23 is tapered configuration, and along flow of flue gas direction Stepwize Shrink, gas inlet branch 26 is gradually Expand structure, is gradually expanded along flow of flue gas direction.
The present invention can make flue gas preferably be full of dedusting impeller side using divergent structure, to increase flue gas and impeller Contact area, on the one hand promote efficiency of dust collection, on the other hand can be preferably using cleaning fluid potential energy to driving dedusting Impeller rotation;Decrement structure can preferably will be filled with fume collection and the discharge of impeller side.
Exhanst gas outlet bypass valve 7 of the invention, gas inlet bypass valve 12, solidifying dirt outlet valve 15,17 and of gas inlet valve Exhanst gas outlet valve 21 is using automatic valve, power drive valve or hand-operated valve.
Such as Fig. 1-2, self-loopa flue gas ash removal cooling tower working method of the invention the following steps are included:
Step S100: hot water distribution: hot water flows into the sparge pipe 3 of cooling tower, and sparge pipe 3 passes through spray head 4 for hot water spray On 5 top surface of filler, dedusting area is flowed to by the air intake space under filler 5 and filler 5, further air is in 5 Qu Yure of filler Heat exchange, air heat absorption occur for water, and temperature increases, and density becomes smaller, and form density contrast with the atmospheric density outside tower, generate in tower Draft enters atmosphere to tower upper direction to tower outlet, and new air passes through herringbone column 25 from air inlet, by rain belt, Finally cover 5th area of filler;
Step S200: impeller rotation: the water in 5th area of filler from top to bottom flows through side body 8 in dedusting area and flows through filter screen 13 To collecting-tank 18, during water flowing, dedusting impeller 10 is driven to rotate clockwise by potential energy;
Step S300: gas inlet valve 17, gas inlet bypass valve 12, exhanst gas outlet valve 21 and cigarette flue gas ash removal: are opened Gas export branch road valve 7, flue gas flows through gas inlet valve 17 and is assigned to each dust removing units by gas inlet distribution circuit 27, into one Step from bottom to top flows into shell 9 on the outside of dedusting area by 26 pipeline of gas inlet branch, and wherein the rotation of dedusting impeller 10 will drive Flue gas flows up, and contaminant particle is obtained flue gas by the absorption of dedusting impeller 10 in flow process in shell 9 on the outside of the dedusting area Clean gas, clean gas collect essential oil exhanst gas outlet distribution pipe through exhanst gas outlet branch 23 by the outflow of shell 9 on the outside of dedusting area Road 20 and 22 pipeline of exhanst gas outlet are discharged, and since dedusting impeller 10 uses heat-barrier material, heat exchange does not occur in dust removal process;
Step S400: dust processing: being adsorbed with the dedusting impeller 10 of contaminant particle clockwise by fume side into water inlet side, Water potential energy acting is from top to bottom flowed, and is washed away to the dedusting impeller 10 for being adsorbed with contaminant particle and takes away pollutant Grain, the water with contaminant particle flow through the clean water of the filtering outflow of strainer 13 and further flow into the participation steam turbine water of collecting-tank 18 Circulation, and filter the solidifying dirt that leaves and then pass through inclined strainer 13 and flow to solidifying dirt outlet valve 15, open solidifying dirt outlet valve 15 via Solidifying dirt is discharged in solidifying dirt outlet 14, while the flowing of water continues to drive the rotation acting of dedusting impeller 10, is achieved in dust-extraction unit Continue dustproof function.
It makes full use of the potential energy of water in cooling tower to do work in the present invention from top to bottom to flow, has been further driven to dedusting impeller It rotates clockwise, is not necessarily to extra work, realizes present apparatus self-loopa function;The souring of water in cooling tower is made full use of, Dustproof function well can be played;Pressure difference caused by the rotary course of dedusting impeller flows flue gas from bottom to top to be had centainly Induced effect, reduce the pump work of flow of flue gas;The absorption of contaminant particle separates progress with washing away in flue gas, greatly promotes Efficiency of dust collection;Dedusting impeller uses heat-barrier material, while impeller tip and shell are closely coupled, utilize flue gas and water reverse flow It is dynamic to drive rotating clockwise for dedusting impeller, it avoids flue gas and is directly contacted with cleaning fluid, avoid the cigarette in dust removal process The loss of gas waste heat, while avoiding dust removal process and hindering flow of flue gas, greatly reduce the power consumption in dust removal process.

Claims (10)

1. a kind of self-loopa flue gas ash removal cooling tower, which is characterized in that including cooling tower ontology and be arranged in cooling tower ontology On tower (1), be from top to bottom sequentially arranged water collection device (2), sparge pipe (3), spray head (4) and filler (5) in the tower (1), Filler (5) lower end is provided with cooling tower air inlet (24) and herringbone column (25), and the bottom of cooling tower ontology is provided with collecting-tank (18), in cooling tower along cooling tower circumference array arrangement several groups upper end be connected with herringbone column (25), lower end with catchment The dust removing units that pond (18) is connected, the dust removing units include shell and are arranged in having for shell side upper and lower end The exhanst gas outlet branch (23) of exhanst gas outlet bypass valve (7) and the gas inlet branch for having gas inlet bypass valve (12) (26), in the shell other side upper and lower end be respectively arranged with the fluid being connected with herringbone column (25) and collecting-tank (18) enter, go out Mouthful, the gas inlet branch (26) of each dust removing units and exhanst gas outlet branch (23) pass through gas inlet distribution pipe respectively Road (27), exhanst gas outlet distribution circuit (20) with gas inlet valve (17) gas inlet (16), have exhanst gas outlet valve (21) exhanst gas outlet (22) is connected, and heart position is provided with central axis (11) in the housing, and dedusting impeller (10) is with center Axis (11) is that center of circle circumference array is distributed in shell, and the blade end and inner walls of dedusting impeller (10) are in close contact, Lower end slant setting in shell positioned at dedusting impeller (10) has strainer (13), opens up in the upper end housing of strainer (13) bottom There is the solidifying dirt outlet (14) with solidifying dirt outlet valve (15).
2. self-loopa flue gas ash removal cooling tower according to claim 1, which is characterized in that the cooling tower body central Position is vertically installed with Central Shaft (19), be evenly distributed with around Central Shaft (19) perpendicular on the downside of cooling tower and with The connected support column (6) in collecting-tank (18) bottom.
3. self-loopa flue gas ash removal cooling tower according to claim 1, which is characterized in that the filler (5) uses S wave It is filler, oblique mistake filler, step Trapezium oblique wave filler, poor position formula sine wave filler, point wave filler, hexagon cellular filler, double To wave filler or bias wave filler.
4. self-loopa flue gas ash removal cooling tower according to claim 1, which is characterized in that the shell includes being provided with The interior side body (8) of fluid entry and exit and the outside shell for being provided with exhanst gas outlet branch (23) and gas inlet branch (26) (9), interior side body (8) be tapered divergent structure, from top to bottom it is tapered in central axis (11) horizontal direction and with dedusting impeller (10) it is bonded, along central axis (11), horizontal direction is from top to bottom divergent structure.
5. self-loopa flue gas ash removal cooling tower according to claim 1, which is characterized in that the exhanst gas outlet branch It (23) is tapered configuration, along flow of flue gas direction Stepwize Shrink.
6. self-loopa flue gas ash removal cooling tower according to claim 1, which is characterized in that the gas inlet branch (26) it is divergent structure, is gradually expanded along flow of flue gas direction.
7. self-loopa flue gas ash removal cooling tower according to claim 1, which is characterized in that the dedusting impeller (10) is adopted It is made of the ceramic thermal insulation material of the porous structure with solid particle adsorption function.
8. self-loopa flue gas ash removal cooling tower according to claim 1, which is characterized in that the strainer (13) is using tool The fabric or filter paper for having granule capturing to act on are made.
9. self-loopa flue gas ash removal cooling tower according to claim 1, which is characterized in that the exhanst gas outlet bypass valve (7), gas inlet bypass valve (12), solidifying dirt outlet valve (15), gas inlet valve (17) and exhanst gas outlet valve (21) are using automatic Valve, power drive valve or hand-operated valve.
10. a kind of self-loopa flue gas ash removal method of cooling tower as claimed in claim 4, it is characterised in that:
Step S100: hot water distribution: hot water flows into the sparge pipe (3) of cooling tower, and sparge pipe (3) is sprayed hot water by spray head (4) It is sprinkled upon on filler (5) top surface, flows to dedusting area by the air intake space under filler (5) and filler (5), further air is in filler (5) heat exchange, air heat absorption occur for area and hot water, and temperature increases, and density becomes smaller, and form density contrast with the atmospheric density outside tower, Draft is generated in tower, enters atmosphere to tower upper direction to tower outlet, new air passes through herringbone column (25) from air inlet, By rain belt, filler (5) area is finally being covered;
Step S200: impeller rotation: the water in filler (5) area from top to bottom flows through side body in dedusting area (8) through filter screen (13) Collecting-tank (18) are flowed to, during water flowing, drive dedusting impeller (10) to rotate clockwise by potential energy;
Step S300: flue gas ash removal: open gas inlet valve (17), gas inlet bypass valve (12), exhanst gas outlet valve (21) and Exhanst gas outlet bypass valve (7), flue gas flow through gas inlet valve (17) and are assigned to each dedusting by gas inlet distribution circuit (27) Unit further from bottom to top flows into shell (9) on the outside of dedusting area by gas inlet branch (26) pipeline, wherein dedusting impeller (10) rotation will drive flue gas and flow up, flue gas contaminant particle quilt in shell (9) interior flow process on the outside of the dedusting area Dedusting impeller (10) absorption obtains clean gas, and clean gas is flowed out by shell on the outside of dedusting area (9) through exhanst gas outlet branch (23) collect essential oil exhanst gas outlet distribution circuit (20) and exhanst gas outlet (22) pipeline to be discharged, due to dedusting impeller (10) using every Heat exchange not occurs in dust removal process for hot material;
Step S400: the dedusting impeller (10) of contaminant particle dust processing: is adsorbed with clockwise by fume side into water inlet side, water Potential energy acting is from top to bottom flowed, and is washed away to the dedusting impeller (10) for being adsorbed with contaminant particle and takes away pollutant Grain, the water with contaminant particle flow through the clean water of strainer (13) filtering outflow and further flow into collecting-tank (18) participation steamer Machine water circulation, and the solidifying dirt that filtering leaves then passes through inclined strainer (13) and flows to solidifying dirt outlet valve (15), opens solidifying dirt and exports Solidifying dirt is discharged via solidifying dirt outlet (14) in valve (15), while the flowing of water continues to drive dedusting impeller (10) rotation acting, thus Realize the lasting dustproof function of dust-extraction unit.
CN201710482375.XA 2017-06-22 2017-06-22 A kind of self-loopa flue gas ash removal cooling tower and method Active CN107198924B (en)

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637195A (en) * 1968-07-05 1972-01-25 Blazer Corp Cooling tower apparatus
JPS5725693Y2 (en) * 1979-10-04 1982-06-04
EP0053898B1 (en) * 1980-12-10 1985-05-29 Imperial Chemical Industries Plc Cooling towers
AU2002951017A0 (en) * 2002-08-26 2002-09-12 Jott Australia Pty Ltd Performance augmentation of natural draft cooling towers
CN201339531Y (en) * 2009-01-20 2009-11-04 王晓佩 Hydraulic turbine of double-impeller power cooling tower
JP5168271B2 (en) * 2009-12-08 2013-03-21 株式会社アスビッグ cooling tower
CN103883459A (en) * 2014-02-17 2014-06-25 无锡永信能源科技有限公司 Open type circulating water potential energy recovery system

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