CN109482041B - Environment-friendly device and process for reducing smoke plume in smoke - Google Patents
Environment-friendly device and process for reducing smoke plume in smoke Download PDFInfo
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- CN109482041B CN109482041B CN201811510165.8A CN201811510165A CN109482041B CN 109482041 B CN109482041 B CN 109482041B CN 201811510165 A CN201811510165 A CN 201811510165A CN 109482041 B CN109482041 B CN 109482041B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1425—Regeneration of liquid absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Abstract
The invention discloses an environment-friendly device and a process for reducing smoke plume in flue gas, and the environment-friendly device comprises a flue gas desulfurization device, wherein an absorption tower, a sedimentation tank, a clean water tank, a centrifugal pump, an electric catcher and a chimney are sequentially arranged behind the flue gas desulfurization device; the rear part of the sedimentation tank is connected with a clean water tank, and the clean water tank is connected with a liquid inlet on the side surface of the absorption tower through a centrifugal pump; an air outlet at the upper part of the absorption tower is connected with an electric catcher for electric catching and dust removal, and an outlet at the upper part of the electric catcher is connected with a chimney. The invention uses normal temperature clean water as absorbent, which can remove the impurity in the smoke and reduce the temperature of the smoke, and then the absorbent returns to the clean water tank for recycling through the subsequent precipitation treatment, thereby reducing the emission of water vapor and reducing the greenhouse effect.
Description
Technical Field
The invention relates to an environment-friendly device and process for reducing smoke plume in smoke, and belongs to the technical field of chemical equipment.
Background
In recent years, haze is more and more serious, and great influence is brought to production and life of people. People generally consider that the haze sources mainly comprise industrial emission pollution, urban construction decoration, road dust, life heating and smoke exhaust, automobile exhaust and the like. The haze contains fine dust, volatile acid mist such as nitric acid and sulfuric acid mist, organic hydrocarbons, heavy metals and the like, which are main components of industrial exhaust gas, heating boilers and automobile exhaust gas. In particular to thermal power generation, metallurgy, chemical industry and building material industry which mainly use fire coal, and is one of main sources of air suspended particles and sulfide. The automobile exhaust is mostly sulfide, nitrogen oxide and carbon oxide, and especially the micro-particle content in the diesel automobile emission is higher. Therefore, it is widely believed that industrial emissions and automobile exhaust constitute the most significant hazards in haze pollution. At present, the bulk of haze treatment is as follows: the method is characterized in that population is controlled, environment-friendly capital investment is increased, formulation of environment-friendly laws and enforcement of law enforcement are enhanced, and innovation and development of science and technology are accelerated. Control populations are among the difficult goals that can be achieved non-once-for-a-day; as for the capital investment for increasing the environmental protection and the establishment of the law for strengthening the environmental protection, a large amount of capital is already invested in the state during the twelve five-year governing period of atmospheric pollution, the latest environmental protection law is implemented from 1 month and 1 day in 2015, the emission reduction amount of dust, sulfur and nitre is huge along with the increasing execution of the state on haze governing, continuous blue-sky white cloud is still not brought to people despite the emission reduction, the haze in most regions in China is more and more serious, and as for the reason, the mode and the method for haze governing have many defects, and the development of a new haze-treating technology needs to be really put to the real place.
Chinese patent CN 105805768A discloses energy-saving and environment-friendly equipment and process for reducing smoke white smoke, which realize temperature reduction and heat exchange through two fans and a glass plate heat exchanger, but do not explain the structure of the glass plate heat exchanger in detail; chinese patent CN 105964087 a discloses a system and method for reducing PM2.5 produced by flue gas, wherein demisting is performed twice by using multiple demisters, but the flow is complex, multiple devices are required, and this also increases the cost.
At present, equipment such as a flue gas-flue gas reheater (GGH) and the like are additionally arranged at the tail part of a flue gas pipeline, and the diffusion degree of pollutants is improved by adopting a method of improving the flue gas exhaust temperature of desulfurized flue gas, so that the phenomena of chimney corrosion and white smoke are reduced. However, GGH is mostly made of metal materials, and often fails and stops working due to acid dew point corrosion, blockage and the like in the use process, so that a new device and a new process method are urgently needed to be developed to treat PM 2.5.
Disclosure of Invention
The invention aims to provide an environment-friendly device and a process for reducing smoke plume in smoke.
The invention provides an environment-friendly device for reducing smoke plume in smoke, which comprises a smoke desulfurizing device, wherein an absorption tower, a sedimentation tank, a clean water tank, a centrifugal pump, an electric catcher and a chimney are sequentially arranged behind the smoke desulfurizing device; the rear part of the sedimentation tank is connected with a clean water tank, and the clean water tank is connected with a liquid inlet on the side surface of the absorption tower through a centrifugal pump; an air outlet at the upper part of the absorption tower is connected with an electric catcher for electric catching and dust removal, and an outlet at the upper part of the electric catcher is connected with a chimney.
In the device, the bottom of the absorption tower is provided with a gas inlet and a liquid outlet, and the end part of a gas inlet pipeline is provided with a gas distributor; the top of the absorption tower is provided with an air outlet and a liquid inlet, the liquid inlet is connected with a six-direction circular sprayer through a pipeline, trapezoidal flow guide floating valve tower plates which are arranged in a staggered mode are arranged inside the absorption tower, and the end portions of the trapezoidal flow guide floating valve tower plates are provided with overflow weirs.
Furthermore, in the trapezoidal flow guide floating valve tower plate, the upper part of a valve hole is provided with a trapezoidal valve plate which can change the liquid flow and the flow direction, the length of the trapezoidal valve plate is 20-100mm, the width of the trapezoidal valve plate is 15-35mm, and the height of a valve leg is 10-30 mm.
Furthermore, the center distance L between two adjacent trapezoidal wave crests in the trapezoidal flow guide float valve tower plate is 2-10 mm.
Further, the trapezoid bottom angle alpha in the trapezoid diversion float valve tower plate is 45 degrees.
Furthermore, 20-40 guide holes are arranged on the trapezoidal inclined plane in the tower plate of the trapezoidal guide float valve, 10-20 guide holes are arranged on the trapezoidal plane, and the diameters of the guide holes are all 1-5 mm.
Furthermore, a liquid distribution cavity is arranged in the center of the six-direction circular sprayer and is a cylindrical hollow cavity, six spraying main pipes are radially distributed outside the liquid distribution cavity, the two adjacent spraying main pipe ends are connected through arc-shaped spraying branch pipes, and the six spraying branch pipes are connected to form a circular ring. Namely: the spraying branch pipes in the six-direction circular sprayer are arranged at the positions, farthest from the liquid distribution cavity, on the spraying main pipe.
Furthermore, six spraying holes with the same size are formed in the liquid distribution cavity of the six-direction circular sprayer; each spraying main pipe is provided with seven spraying holes, the pore size of each spraying hole is larger along with the distance from the liquid distribution cavity, and the pore size of the smallest hole is the same as that of the spraying hole on the liquid distribution cavity; each spray branch pipe is provided with five spray holes, the aperture of each spray hole is equal to the aperture of the spray hole at the position farthest away from the liquid distribution cavity on the spray main pipe, and the circle center distance between every two adjacent spray holes on the spray branch pipes is 10 degrees.
In the device, the stirring device in the sedimentation tank is a triangular stirring paddle, the left side and the right side of the stirring shaft are respectively provided with the triangular stirring paddles with different sizes, the left stirring paddle and the right stirring paddle are both triangular, the two triangles are similar, and the similarity ratio is 2: 1; triangular anti-drag holes are formed in the two stirring paddles, the anti-drag holes are similar to the stirring paddles and are triangular, and the anti-drag holes are similar to the triangular stirring paddles in which the anti-drag holes are formed, and the similarity ratio of the anti-drag holes to the triangular stirring paddles is 1: 5.
The invention provides an environment-friendly process for reducing smoke plume in smoke, which comprises the following steps:
(1) high-temperature flue gas from a flue gas desulfurization device enters an absorption tower, the high-temperature flue gas enters from a gas inlet at the bottom of the absorption tower, is fully diffused into the absorption tower through a gas distributor, and is fully contacted with an absorbent on a tower plate of a trapezoidal diversion float valve, so that impurity removal and flue gas cooling are realized, the flue gas after impurity removal and cooling is discharged from the top of the absorption tower, and is led to an electric catcher, and is electrically caught and dedusted through the electric catcher, so that pure gas is obtained and is discharged into the atmosphere through a chimney;
the absorbent in the absorption tower is normal temperature clear water;
(2) meanwhile, an absorbent is pumped into the absorption tower from a clean water tank through a centrifugal pump, is fully dispersed into the tower through a six-direction circular sprayer, is contacted with the flue gas on a tower plate of a trapezoidal diversion floating valve to remove impurities in the flue gas, enters a sedimentation tank from a liquid outlet at the bottom of the absorption tower, forms sludge and other impurities under the action of a stirring device by adding a flocculating agent, and enters an impurity storage place from the lower part of the sedimentation tank; and introducing the absorbent with impurities removed into a clean water tank for recycling.
In the process, the flocculating agent is cheap lime, limestone or alkaline solution prepared by lime stone medicament.
The absorption tower is provided with the trapezoidal flow guide floating valve tower plate and the six-way circular sprayer, when in operation, airflow blown out from two sides of the trapezoidal flow guide floating valve is contacted with liquid flow on the tower plate, and on the other hand, airflow blown out from the flow guide holes formed in the trapezoidal floating plate can be more fully and uniformly contacted with the liquid flow, so that the vertical upward gas component velocity is reduced, the sectional area of gas channels on two sides of the floating valve is large, the opposite impact of gas phase and liquid phase is obviously reduced, the hydromechanical property of the tower plate is improved, and the processing capacity and efficiency of the tower plate are obviously improved; the six-direction circular sprayer improves the dispersion degree of liquid materials, thereby improving effective surfaces of mass transfer and heat transfer, improving interphase contact, and having simple structure, small occupied space, convenient manufacture and installation, low production cost and wide applicability.
The invention has the beneficial effects that:
(1) according to the process method for reducing the smoke plume in the smoke, normal-temperature clean water is used as an absorbent, so that impurities in the smoke can be removed, the temperature of the smoke can be reduced, the absorbent returns to a clean water tank for recycling after subsequent precipitation treatment, the emission of water vapor is reduced, and the greenhouse effect is reduced;
(2) the trapezoidal flow guide float valve tower plate designed in the absorption tower can be in more sufficient and uniform contact with liquid flow, the opposite impact of gas phase and liquid phase is obviously reduced, the hydromechanical property of the tower plate is improved, and the treatment capacity and efficiency of the tower plate are obviously improved;
(3) the six-way circular sprayer designed in the absorption tower improves the interphase contact, has simple structure, small occupied space, convenient manufacture and installation, low production cost and wide applicability;
(4) the left and right paddles of the stirring paddle adopted in the invention are both triangular, the two triangles are similar, the similarity ratio is 2:1, and the absorbents in different layers can be fully stirred; the drag reduction holes arranged on the stirring paddle can reduce stirring resistance, reduce the consumption of electric energy and save cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the environment-friendly equipment for reducing smoke plume in flue gas and a process flow chart of the invention;
FIG. 2 is a schematic view of the structure of an absorption column in the present invention;
FIG. 3 is a schematic structural view of a trapezoidal flow guide float valve tray according to the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 taken from the direction A-A above the tray and the valve opening;
FIG. 5 is a schematic structural view of a six-way circular sprayer according to the present invention;
FIG. 6 is a schematic view of the construction of a stirring paddle according to the present invention;
in the figure: 1-a flue gas desulfurization device, 2-an absorption tower, 3-a sedimentation tank, 4-a clean water tank, 5-a centrifugal pump, 6-an electric catcher, 7-a chimney, 8-an air outlet, 9-a liquid inlet, 10-a six-way round sprayer, 11-an overflow weir, 12-a trapezoidal diversion floating valve tray, 13-a gas distributor, 14-an air inlet, 15-a liquid outlet, 16-a valve sheet, 17-a valve leg, 18-a valve foot, 19-a valve hole, 20-a folded edge, 21-a tray section, 22-a trapezoidal inclined plane, 23-a trapezoidal plane, 24-a diversion hole, 25-a feeding main pipe, 26-a liquid distribution cavity, 27-a spray main pipe, 28-a spray branch pipe, 29-a spray hole and 30-a stirring device, 31-stirring paddle, 32-drag reduction hole.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following examples.
Example 1:
as shown in fig. 1 to 6, an environment-friendly device for reducing smoke plume in flue gas comprises a flue gas desulfurization device 1, wherein an absorption tower 2, a sedimentation tank 3, a clean water tank 4, a centrifugal pump 5, an electric catcher 6 and a chimney 7 are sequentially arranged behind the flue gas desulfurization device 1, a flue gas outlet of the flue gas desulfurization device 1 is connected with a gas inlet 14 on the side surface of the absorption tower 2, a liquid outlet 15 at the lower part of the absorption tower 2 is connected with the sedimentation tank 3, and a stirring device 30 is arranged in the sedimentation tank 3 and used for treating impurities in an absorbent; the rear part of the sedimentation tank 3 is connected with a clean water tank 4, and the clean water tank 4 is connected with a liquid inlet 9 on the side surface of the absorption tower 2 through a centrifugal pump 5; an air outlet 8 at the upper part of the absorption tower 2 is connected with an electric catcher 6 for electric catching and dust removal, and an outlet at the upper part of the electric catcher 6 is connected with a chimney 7.
In the device, the bottom of the absorption tower 2 is provided with a gas inlet 14 and a liquid outlet 15, and the end part of a pipeline of the gas inlet 14 is provided with a gas distributor 13; the top of the absorption tower 2 is provided with an air outlet 8 and a liquid inlet 9, the liquid inlet 9 is connected with a six-direction circular sprayer 10 through a pipeline, trapezoidal flow guide float valve tower plates 12 which are arranged in a staggered mode are arranged inside the absorption tower 2, and the end parts of the trapezoidal flow guide float valve tower plates 12 are provided with overflow weirs 11.
Furthermore, in the trapezoidal flow guide floating valve tray 12, the upper part of the valve hole 19 is a trapezoidal valve plate 16, the floating valve comprises the valve plate 16, a valve leg 17, a valve foot 18 and a folding edge 20, the liquid flow and the flowing direction can be changed, the length of the trapezoidal valve plate is 20-100mm, the width of the trapezoidal valve plate is 15-35mm, and the height of the valve leg is 10-30 mm. Further, the center distance L between two adjacent trapezoidal wave crests in the trapezoidal flow guide float valve tower plate 12 is 2-10 mm.
Further, the trapezoid bottom angle alpha of the trapezoid diversion float valve tower plate 12 is 45 degrees.
Furthermore, 20-40 diversion holes 24 are arranged on the trapezoidal inclined plane in the trapezoidal diversion floating valve tower plate 12, 10-20 diversion holes are arranged on the trapezoidal plane, and the aperture of each diversion hole is 1-5 mm.
Further, a liquid distribution cavity 26 is arranged in the center of the six-way circular sprayer 10 and is a cylindrical hollow cavity, six main spray pipes 27 are radially distributed outside the liquid distribution cavity 26, the end parts of two adjacent main spray pipes 27 are connected through arc-shaped branch spray pipes 28, and the six branch spray pipes 28 are connected to form a circular ring. Namely: the spray branch pipes 28 of the six-way round sprayer 10 are arranged on the spray main pipe 27 at the farthest positions from the liquid distribution cavity 26.
Furthermore, six spraying holes 29 are arranged on the liquid distribution cavity 26 in the six-way circular sprayer 10, and the sizes of the spraying holes are the same; each spraying main pipe 27 is provided with seven spraying holes, the pore size of the spraying holes is larger along with the distance from the liquid distribution cavity, and the pore size of the smallest hole is the same as that of the spraying holes on the liquid distribution cavity; each spray branch pipe 28 is provided with five spray holes, the aperture of each spray hole is equal to the aperture of the spray hole at the position farthest from the liquid distribution cavity on the spray main pipe, and the distance between the circle centers of two adjacent spray holes on the spray branch pipes 28 is 10 degrees.
In the device, the stirring device 30 in the sedimentation tank 3 is a triangular stirring paddle, the left side and the right side of the stirring shaft are respectively provided with triangular stirring paddles 31 with different sizes, the left and the right paddles are triangular, the two triangles are similar, and the similarity ratio is 2: 1; triangular anti-drag holes 32 are formed in the two stirring paddles 31, the anti-drag holes 32 are similar to the stirring paddles 31, the anti-drag holes are also triangular, the anti-drag holes are similar to the triangular stirring paddles, and the similar ratio is 1: 5. (all are similar triangles, so the size is expressed in terms of similarity ratio)
The invention provides an environment-friendly process for reducing smoke plume in smoke, which comprises the following steps:
(1) high-temperature flue gas coming out of the flue gas desulfurization device 1 enters the absorption tower 2, enters from a gas inlet 14 at the bottom of the absorption tower 2, is fully diffused into the absorption tower 2 through a gas distributor 13, and is fully contacted with an absorbent on a trapezoidal flow guide float valve tower plate 12, so that impurity removal and flue gas cooling are realized, the flue gas subjected to impurity removal and cooling is discharged from the top of the absorption tower 2 and is led to an electric catcher 6, electric catching and dust removal are carried out through the electric catcher 6, pure gas is obtained, and the pure gas is discharged into the atmosphere through a chimney 7;
the absorbent in the absorption tower 2 is normal temperature clear water;
(2) meanwhile, the absorbent is pumped into the absorption tower 2 from the clean water tank 4 through the centrifugal pump 5, is fully dispersed into the absorption tower 2 through the six-direction circular sprayer 10, then is contacted with the flue gas on the tower plate 12 of the trapezoidal diversion floating valve to remove impurities in the flue gas, enters the sedimentation tank 3 from the liquid outlet at the bottom of the absorption tower 2, forms sludge and other impurities under the action of the stirring device 30 by adding a flocculating agent, and enters the impurity storage place from the lower part of the sedimentation tank 3; the absorbent with impurities removed is then introduced into the clean water tank 4 for recycling.
In the process, the flocculating agent is cheap lime, limestone or alkaline solution prepared by lime stone medicament.
Claims (4)
1. The utility model provides a reduce environment-friendly device of plume in flue gas, includes flue gas desulphurization unit, its characterized in that: the device is characterized in that an absorption tower, a sedimentation tank, a clean water tank, a centrifugal pump, an electric catcher and a chimney are sequentially arranged behind the flue gas desulfurization device, a flue gas outlet of the flue gas desulfurization device is connected with a gas inlet on the side surface of the absorption tower, a liquid outlet on the lower part of the absorption tower is connected with the sedimentation tank, and a stirring device is arranged in the sedimentation tank and used for treating impurities in the absorbent; the rear part of the sedimentation tank is connected with a clean water tank, and the clean water tank is connected with a liquid inlet on the side surface of the absorption tower through a centrifugal pump; an air outlet at the upper part of the absorption tower is connected with an electric catcher for electric catching and dust removal, and an outlet at the upper part of the electric catcher is connected with a chimney; the liquid inlet pipeline is connected with a six-direction circular sprayer, a liquid distribution cavity is arranged in the center of the six-direction circular sprayer and is a cylindrical hollow cavity, six spraying main pipes are radially distributed outside the liquid distribution cavity, the end parts of two adjacent spraying main pipes are connected through arc-shaped spraying branch pipes, and the six spraying branch pipes are connected to form a circular ring; six spraying holes with the same size are formed in the liquid distribution cavity in the six-direction circular sprayer; each spraying main pipe is provided with seven spraying holes, the pore size of each spraying hole is larger along with the distance from the liquid distribution cavity, and the pore size of the smallest hole is the same as that of the spraying hole on the liquid distribution cavity; each spray branch pipe is provided with five spray holes, the aperture of each spray branch pipe is equal to the aperture of the spray hole on the spray main pipe which is farthest away from the liquid distribution cavity, and the circle center distance between every two adjacent spray holes on the spray branch pipes is 10 degrees;
the absorbent is pumped into the absorption tower from a clean water tank through a centrifugal pump, then contacts with the flue gas on a tower plate of a trapezoidal diversion floating valve to remove impurities in the flue gas, enters a sedimentation tank from a liquid outlet at the bottom of the absorption tower, forms sludge and other impurities under the action of a stirring device by adding a flocculating agent, and enters an impurity storage place from the lower part of the sedimentation tank; the flocculating agent is an alkaline solution prepared from lime, limestone or a lime stone medicament;
trapezoidal flow guide floating valve tower plates which are arranged in a staggered mode are arranged inside the absorption tower, and overflow weirs are arranged at the end portions of the trapezoidal flow guide floating valve tower plates; in the tower plate of the trapezoidal diversion floating valve, the upper part of a valve hole is provided with a trapezoidal valve plate which can change the flow rate and the flowing direction of liquid; the trapezoid bottom angle alpha in the tower plate of the trapezoid diversion float valve is 45 degrees; 20-40 diversion holes are arranged on a trapezoidal inclined plane in the trapezoidal diversion floating valve tower plate, 10-20 diversion holes are arranged on a trapezoidal plane, and the hole diameters of the diversion holes are all 1-5 mm;
the stirring device in the sedimentation tank is a triangular stirring paddle, the left side and the right side of the stirring shaft are respectively provided with triangular stirring paddles with different sizes, the left stirring paddle and the right stirring paddle are both triangular, the two triangles are similar, and the similarity ratio is 2: 1; triangular anti-drag holes are formed in the two stirring paddles and are triangular, and the anti-drag holes are similar to the triangular stirring paddles in the position, and the similarity ratio is 1: 5.
2. The environmental protection device for reducing smoke plume in smoke according to claim 1, wherein: the bottom of the absorption tower is provided with a gas inlet and a liquid outlet, and the end part of a gas inlet pipeline is provided with a gas distributor; the top of the absorption tower is provided with an air outlet and a liquid inlet.
3. The environmental protection device for reducing smoke plume in smoke according to claim 1, wherein: the length of the trapezoid valve plate is 20-100mm, the width of the trapezoid valve plate is 15-35mm, and the height of the valve leg is 10-30 mm; the center distance L between two adjacent trapezoidal wave crests in the trapezoidal flow guide float valve tower plate is 2-10 mm.
4. An environment-friendly process for reducing smoke plume in smoke gas, which adopts the environment-friendly device for reducing smoke plume in smoke gas as claimed in any one of claims 1 to 3, and is characterized in that: the method comprises the following steps:
(1) high-temperature flue gas from a flue gas desulfurization device enters an absorption tower, the high-temperature flue gas enters from a gas inlet at the bottom of the absorption tower, is fully diffused into the absorption tower through a gas distributor, and is fully contacted with an absorbent on a tower plate of a trapezoidal diversion float valve, so that impurity removal and flue gas cooling are realized, the flue gas after impurity removal and cooling is discharged from the top of the absorption tower, and is led to an electric catcher, and is electrically caught and dedusted through the electric catcher, so that pure gas is obtained and is discharged into the atmosphere through a chimney;
the absorbent in the absorption tower is normal temperature clear water;
(2) meanwhile, an absorbent is pumped into the absorption tower from a clean water tank through a centrifugal pump, is fully dispersed into the tower through a six-direction circular sprayer, is contacted with the flue gas on a tower plate of a trapezoidal diversion floating valve to remove impurities in the flue gas, enters a sedimentation tank from a liquid outlet at the bottom of the absorption tower, forms sludge and other impurities under the action of a stirring device by adding a flocculating agent, and enters an impurity storage place from the lower part of the sedimentation tank; and introducing the absorbent with impurities removed into a clean water tank for recycling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811510165.8A CN109482041B (en) | 2018-12-11 | 2018-12-11 | Environment-friendly device and process for reducing smoke plume in smoke |
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| CN201811510165.8A CN109482041B (en) | 2018-12-11 | 2018-12-11 | Environment-friendly device and process for reducing smoke plume in smoke |
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| CN109482041A CN109482041A (en) | 2019-03-19 |
| CN109482041B true CN109482041B (en) | 2021-11-12 |
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| CN113274835A (en) * | 2021-04-28 | 2021-08-20 | 巴基斯坦卡西姆港发电有限公司 | Be applied to desalination dehydrating unit of pier ship unloader electricity distribution room |
| CN117258525B (en) * | 2023-11-21 | 2024-02-02 | 福建英辉新材料科技有限公司 | Desulfurizing tower with adjustable multilayer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562832Y (en) * | 2002-08-12 | 2003-07-30 | 天津大学北洋化工设备开发中心 | Guide sieve mesh float valve |
| CN2796792Y (en) * | 2005-06-22 | 2006-07-19 | 华东理工大学 | Corrugated guiding float valve tower plate |
| CN104226088A (en) * | 2014-09-12 | 2014-12-24 | 中国华能集团清洁能源技术研究院有限公司 | Ultralow-temperature ultra-clean flue gas exhausting system and method for thermal power plant |
| CN107081114A (en) * | 2017-05-10 | 2017-08-22 | 迈瑞尔实验设备（上海）有限公司 | Liquid distribution trough |
| CN207102431U (en) * | 2017-04-26 | 2018-03-16 | 东莞市凯文化工有限公司 | Carbon fiber releasing agent agitating device |
| CN108554145A (en) * | 2018-06-28 | 2018-09-21 | 广东佳德环保科技有限公司 | A kind of flue gas desulfurization denitration dust-removing takes off white device |
| CN208097718U (en) * | 2018-03-14 | 2018-11-16 | 红河绿地环保科技发展有限公司 | A kind of device for the discharge outlet white haze steam that removes smoke |
-
2018
- 2018-12-11 CN CN201811510165.8A patent/CN109482041B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562832Y (en) * | 2002-08-12 | 2003-07-30 | 天津大学北洋化工设备开发中心 | Guide sieve mesh float valve |
| CN2796792Y (en) * | 2005-06-22 | 2006-07-19 | 华东理工大学 | Corrugated guiding float valve tower plate |
| CN104226088A (en) * | 2014-09-12 | 2014-12-24 | 中国华能集团清洁能源技术研究院有限公司 | Ultralow-temperature ultra-clean flue gas exhausting system and method for thermal power plant |
| CN207102431U (en) * | 2017-04-26 | 2018-03-16 | 东莞市凯文化工有限公司 | Carbon fiber releasing agent agitating device |
| CN107081114A (en) * | 2017-05-10 | 2017-08-22 | 迈瑞尔实验设备（上海）有限公司 | Liquid distribution trough |
| CN208097718U (en) * | 2018-03-14 | 2018-11-16 | 红河绿地环保科技发展有限公司 | A kind of device for the discharge outlet white haze steam that removes smoke |
| CN108554145A (en) * | 2018-06-28 | 2018-09-21 | 广东佳德环保科技有限公司 | A kind of flue gas desulfurization denitration dust-removing takes off white device |
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