CN117504566A - Waste gas treatment device and treatment method - Google Patents
Waste gas treatment device and treatment method Download PDFInfo
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- CN117504566A CN117504566A CN202311657115.3A CN202311657115A CN117504566A CN 117504566 A CN117504566 A CN 117504566A CN 202311657115 A CN202311657115 A CN 202311657115A CN 117504566 A CN117504566 A CN 117504566A
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- 239000002912 waste gas Substances 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 72
- 239000007921 spray Substances 0.000 claims abstract description 55
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 238000004140 cleaning Methods 0.000 claims description 32
- 238000003860 storage Methods 0.000 claims description 16
- 239000003344 environmental pollutant Substances 0.000 claims description 12
- 231100000719 pollutant Toxicity 0.000 claims description 12
- 230000000007 visual effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 29
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000008676 import Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 31
- 238000005507 spraying Methods 0.000 description 24
- 238000005381 potential energy Methods 0.000 description 8
- 238000012216 screening Methods 0.000 description 7
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 150000003568 thioethers Chemical class 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/014—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements with curved filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
- B01D29/72—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to the technical field of waste gas treatment, in particular to a waste gas treatment device and a treatment method, comprising the following steps: a tower body; the bottom of the tower body is provided with an exhaust gas inlet, and the top of the tower body is fixedly connected with a clean gas pipeline through a flange; a filter assembly; the filtering component is arranged in the tower body and is used for filtering waste gas; through setting up vertical scroll and fan blade, utilize the great principle of waste gas import department wind speed, make the fan blade produce the rotation to drive the vertical scroll and rotate, the bent arm can be driven to slide with supporting the axle on the tower body inner wall when the vertical scroll rotates, and when contacting the elastic filter plate, exert pressure to the elastic filter plate, make elastic filter plate deformation, because waste gas is continuously discharged, the fan blade can continuously rotate, then it can repeatedly extrude the elastic filter plate to support the axle drive knocking hammer, the elastic filter plate receives the in-process that extrudes the reset to produce slight vibration, be favorable to the rejection to impurity on the elastic filter plate, extension spray column normal operating cycle, reduce the clear frequency of shut down.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment, and particularly relates to a waste gas treatment device and a waste gas treatment method.
Background
The waste gas is passively generated in industrial production, contains various SOx/NOx and other pollution components, and needs to be purified when the waste gas is exhausted by industry so as to reach the emission standard; the common equipment for treating the waste gas is generally a spray tower, SOx/NOx components in the waste gas can be effectively removed, and pollutants in the waste gas are adsorbed and dissolved by utilizing spray liquid in the spray tower, so that the purpose of purifying the waste gas is achieved, and the exhaust gas meets the emission standard.
The waste gas treatment equipment of the spray tower consists of a spray tower body, an air inlet pipe, an air outlet pipe, a spray system, a packing layer, a liquid level control system and the like. The waste gas enters the spray tower through the waste gas inlet, after passing through the packing layer, the spray system uniformly sprays the spray liquid on the packing layer, the waste gas contacts with the spray liquid in the packing layer, pollutants are adsorbed and dissolved in the spray liquid, and purified gas is discharged from the gas outlet pipe; the spray liquid of the spray tower exhaust gas treatment device is usually water or chemical liquid, and different chemical liquids such as acid-base neutralization liquid, oxidant, reducing agent and the like are selected according to different pollutants. The spray liquid is recycled in the spray tower, and the supplement and the discharge of the spray liquid are controlled through the liquid level control system, so that the stability and the purification effect of the spray liquid are ensured.
In the prior art, through setting up the multilayer packing, carry out the layering and adsorb waste gas for waste gas can fully get rid of SOx/NOx composition that contains in the waste gas through the removal in-process that sprays the tower bottom to spray the top of the tower, the solid sulfide that produces flows to the tower bottom along with spraying liquid, can separate solid sulfide through the filter screen, and make spraying liquid reuse, but the filter screen is in the tower body inside, when sieving the processing, easily be blocked the filtration pore by solid sulfide, lead to circulation system to be blocked, reduce the utilization ratio of spraying liquid, and after long-time operation, the rate of passage of filter screen reduces gradually, need stop to clear up, in order to prevent thoroughly blocking up and cause the accident.
Therefore, the invention provides an exhaust gas treatment device and a treatment method.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to an exhaust gas treatment device, which comprises:
a tower body; the bottom of the tower body is provided with an exhaust gas inlet, and the top of the tower body is fixedly connected with a clean gas pipeline through a flange;
a filter assembly; the filtering component is arranged in the tower body and is used for filtering waste gas;
a circulation assembly; the circulating assembly comprises a water storage bin; the water storage bin is communicated with the bottom of the tower body; the circulating assembly further comprises a circulating pipeline; one end of the circulating pipeline is communicated with the water storage bin, and the other end of the circulating pipeline penetrates through the tower body; an elastic filter plate is fixedly connected between the water storage bin and the tower body;
the filter assembly further comprises a vertical shaft; the vertical shaft is rotationally connected to the bottom surface of the tower body; the middle part of the vertical shaft is fixedly connected with a fan blade corresponding to the exhaust gas inlet; a bent shaft is fixedly connected to the bottom side of the vertical shaft; the bottom of the bent shaft is parallel to the bottom surface of the tower body and is connected with a supporting shaft in a penetrating way; the knocking hammer is fixedly connected to one end of the supporting shaft, which faces the inner wall of the tower body; the supporting shaft is fixedly connected with the vertical shaft through a second spring.
Preferably, the bottom of the bent shaft is parallel to the bottom surface of the tower body, and a through groove is formed in the bottom of the bent shaft; the supporting shaft is in sliding fit with the penetrating groove; the side wall of the vertical shaft is fixedly connected with a fixed shaft corresponding to the through groove; one end of the second spring is sleeved on the fixed shaft.
Preferably, a cleaning plate is fixedly connected to one end of the elastic filter plate, which faces the water storage bin, and a plurality of cleaning teeth are fixedly connected to one side of the cleaning plate, which faces the elastic filter plate; the cleaning teeth are used for cleaning the elastic filter plate.
Preferably, the filter assembly further comprises a carrier plate, a first screen plate and a second screen plate; the bearing plate, the first sieve plate and the second sieve plate are filled with a plurality of filter balls; the bearing plate, the first sieve plate and the second sieve plate are sequentially arranged at intervals from the top of the tower body to the bottom of the tower body; the vertical shaft is arranged adjacent to the second sieve plate, and a plurality of top blocks are arranged at the bottom of the second sieve plate and are arranged in an annular array; a second swing rod is fixedly connected to the top of the vertical shaft in a lateral direction; the second swing rod is in sliding fit with the top block.
Preferably, the side wall of the bottom of the tower body is fixedly connected with a plurality of connecting lugs corresponding to the second sieve plate; a connecting rod is fixedly connected to the bottom of the second sieve plate and penetrates through the connecting lug; the connecting rod is sleeved with a first spring, and the first spring is fixedly connected between the second sieve plate and the connecting lug.
Preferably, the circulating pipeline comprises a first water pipe, a second water pipe and a nozzle; the parts of the first water pipe and the second water pipe, which are positioned in the tower body, are communicated with a plurality of nozzles; the first water pipe is positioned between the bearing plate and the first sieve plate; the second water pipe is positioned between the first sieve plate and the second sieve plate; the nozzles on the first water pipe are arranged adjacent to the bottom of the bearing plate, and the nozzles on the second water pipe are positioned between the first sieve plate and the second sieve plate.
Preferably, the first sieve plate comprises an outer ring and a cyclone plate; the cyclone plate is rotationally connected in the outer ring, and the outer ring is fixedly connected in the middle of the tower body through screws; the inner side of the outer ring is fixedly connected with a plurality of thin rods which are arranged in a conical annular array; the filter balls are uniformly distributed on the surfaces of the thin rods.
Preferably, the top of the cyclone plate is fixedly connected with a first swing rod, and the first swing rod is arranged adjacent to the thin rod; the edge of the cyclone plate is provided with a plurality of overflow grooves.
Preferably, a plurality of visual windows are arranged on the outer surface of the tower body at intervals, and the plurality of visual windows respectively correspond to the bearing plate, the first sieve plate and the second sieve plate; the outer ring is internally provided with a ring groove, and a plurality of balls are connected in the ring groove in a rolling way; the edge of the swirl plate is rotationally connected with the inner side of the outer ring through a ball.
A method for treating waste gas is characterized in that: the method comprises the following steps:
s1: firstly, starting fans at the outlet ends of a spray tower circulating pipeline and a clean gas pipeline, and running an air conditioner for a period of time;
s2: after the air conditioner of the spray tower stably operates for a period of time, introducing waste gas into the spray tower;
s3: the waste gas is controlled to enter the spray tower at a high speed and pass through the filter assembly at a retarded speed;
s4: observing the waste gas treatment condition in the spray tower through an observation window until purified gas is discharged through a gas purifying pipeline;
s5: detecting the content of purified gas pollutants at the outlet end of the purified gas pipeline, and quantitatively filling the spray liquid according to the yield of the pollutants in the purified gas.
The beneficial effects of the invention are as follows:
1. according to the exhaust gas treatment device and the exhaust gas treatment method, the vertical shaft and the fan blades are arranged, the fan blades are rotated by utilizing the principle that the wind speed at the exhaust gas inlet is high, the vertical shaft is driven to rotate, the bent arm and the supporting shaft can be driven to slide on the inner wall of the tower body while the vertical shaft rotates, and when the elastic filter plate is contacted, the elastic filter plate is pressed, the elastic filter plate is deformed, the fan blades can continuously rotate, the supporting shaft drives the knocking hammer to repeatedly squeeze the elastic filter plate, slight vibration is generated in the process that the elastic filter plate is reset by the extrusion, the removal of impurities on the elastic filter plate is facilitated, the normal working period of the spray tower is prolonged, and the shutdown cleaning frequency is reduced.
2. According to the waste gas treatment device and the waste gas treatment method, the cyclone plate is arranged, the upward-spraying liquid column is utilized to impact the cyclone plate, the cyclone plate rotates, spraying liquid can be fully dispersed and contacts with the upward-spraying liquid column, a large gas-liquid contact surface is formed, the waste gas can be adsorbed, meanwhile, the cyclone plate rotates to extrude the filter balls carried on the thin rods through the first swing rods, the filter balls can move, and therefore solid impurities remained on the filter balls can conveniently move along with the spraying liquid and are collected at the bottom of the tower body.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a partial cross-sectional view of the present invention;
FIG. 4 is a perspective view of a filter assembly and a recycling assembly of the present invention;
fig. 5 is a perspective view of a first screening deck and a second screening deck according to the present invention;
FIG. 6 is a first perspective view of the annular plate and swirl plate of the present invention;
FIG. 7 is a second perspective view of the annular plate and swirl plate of the present invention;
figure 8 is a perspective view of a second screen panel and vertical shaft of the present invention;
FIG. 9 is a first perspective view of the vertical shaft, fan blade of the present invention;
FIG. 10 is a second perspective view of the vertical shaft, fan blade of the present invention;
in the figure: 1. a tower body; 11. a visual window; 12. a water storage bin; 13. an exhaust gas inlet; 2. a clean gas line; 31. a first water pipe; 32. a second water pipe; 33. a nozzle; 4. a carrying plate; 5. a first screen plate; 51. an outer ring; 52. a thin rod; 53. a swirl plate; 54. a first swing rod; 55. an overflow trough; 6. a second screen plate; 61. a connecting rod; 62. a first spring; 63. a top block; 7. a vertical shaft; 71. a fan blade; 72. a second spring; 73. bending the shaft; 74. a shaft is abutted; 75. the second swing rod; 76. knocking a hammer; 8. an elastic filter plate; 81. a cleaning plate; 9. and (5) a filter ball.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 and 2 and fig. 8 to 10, an exhaust gas treatment device according to an embodiment of the present invention includes:
a tower 1; the bottom of the tower body 1 is provided with an exhaust gas inlet 13, and the top of the tower body 1 is fixedly connected with a clean gas pipeline 2 through a flange;
a filter assembly; the filtering component is arranged in the tower body 1 and is used for filtering waste gas;
a circulation assembly; the circulation assembly includes a water reservoir 12; the water storage bin 12 is communicated with the bottom of the tower body 1; the circulating assembly further comprises a circulating pipeline; one end of the circulating pipeline is communicated with the water storage bin 12, and the other end of the circulating pipeline penetrates through the tower body 1; an elastic filter plate 8 is fixedly connected between the water storage bin 12 and the tower body 1;
the filter assembly further comprises a vertical shaft 7; the vertical shaft 7 is rotatably connected to the bottom surface of the tower body 1; the middle part of the vertical shaft 7 is fixedly connected with a fan blade 71 corresponding to the waste gas inlet 13; a bent shaft 73 is fixedly connected to the bottom side of the vertical shaft 7; the bottom of the bent shaft 73 is parallel to the bottom surface of the tower body 1 and is connected with a supporting shaft 74 in a penetrating way; a knocking hammer 76 is fixedly connected to one end of the supporting shaft 74 facing the inner wall of the tower body 1; the support shaft 74 is fixedly connected with the vertical shaft 7 through a second spring 72. When the waste gas is treated, a fan communicated with a gas purifying pipeline 2 is started, spraying spray liquid into the tower body 1 through a circulating assembly, after the air tower runs for a period of time, opening a valve at a waste gas inlet 13, enabling the waste gas to enter the tower body 1 at a high speed through the waste gas inlet 13, enabling the waste gas in the tower body 1 to move from the tower bottom to the tower top, enabling the waste gas to pass through a filtering assembly in the moving process, adsorbing SOx/NOx and other pollution components contained in the waste gas, forming solid sulfides, flowing to the tower bottom along with the spray liquid, and enabling the waste gas after multi-level purification and filtration to no longer contain SOx/NOx and other pollution components, or enabling the residual content of SOx/NOx and other pollution components to reach the emission standard, and discharging purified gas to the atmosphere through a purifying pipeline;
it is noted that the exhaust gas enters the tower bottom through the exhaust gas inlet 13, and the wind speed is high before passing through the filtering component, and the flow speed of the exhaust gas in the filtering process in the tower body 1 is controlled to be about 2m/s so as to ensure the exhaust gas purifying efficiency;
when the waste gas enters the bottom of the tower body 1 at a high speed, the waste gas vertically blows on the fan blades 71 and promotes the fan blades 71 to drive the vertical shaft 7 to rotate, after the vertical shaft 7 rotates, the bent shaft 73 and the supporting shaft 74 can be driven to rotate circumferentially, in the circumferential rotation process of the supporting shaft 74, the supporting shaft 74 slides relatively radially along the bottom of the bent shaft 73 due to extrusion of the inner wall of the tower body 1, the second spring 72 is in a compressed state, when the supporting shaft 74 slides onto the elastic filter plate 8, the supporting shaft 74 can carry out elastic deformation due to the elastic filter plate 8, so that under the action of elastic potential energy of the second spring 72, the supporting shaft 74 can drive the knocking hammer 76 to extrude the elastic filter plate 8 rapidly, impurities such as blocked solid sulfides on the elastic filter plate 8 can be separated from the elastic filter plate 8 under the influence of acceleration, and the supporting shaft 74 drives the knocking hammer 76 to extrude the elastic filter plate 8 repeatedly along with the continuous entering the bottom of the tower body 1, so as to complete cleaning of the blocked impurities on the elastic filter plate 8, the normal working cycle of the tower is prolonged, and the shutdown frequency is reduced.
As shown in fig. 8 to 10, the bottom of the bent axle 73 is parallel to the bottom surface of the tower body 1, and a through groove is formed at the bottom of the bent axle 73; the supporting shaft 74 is in sliding fit with the through groove; the side wall of the vertical shaft 7 is fixedly connected with a fixed shaft corresponding to the through groove; one end of the second spring 72 is sleeved on the fixed shaft. When waste gas enters the bottom of the tower body 1 at a high speed, the fan blades 71 and the vertical shaft 7 are driven to rotate, when the vertical shaft 7 rotates, the supporting shaft 74, the second spring 72 and the knocking hammer 76 are synchronously driven to radially slide until the knocking hammer 76 moves onto the elastic filter plate 8 from the inner wall of the tower body 1, the supporting shaft 74 is extruded to move in the penetrating groove under the elastic potential energy of the second spring 72, the knocking hammer 76 can extrude the elastic filter plate 8 to deform, and after repeated times, the cleaning effect of blocking impurities on the elastic filter plate 8 can be achieved, so that the working period of the spray tower is prolonged, and the cleaning frequency is reduced.
As shown in fig. 8 to 9, a cleaning plate 81 is fixedly connected to one end of the elastic filter plate 8 facing the water storage bin 12, and a plurality of cleaning teeth are fixedly connected to one side of the cleaning plate 81 facing the elastic filter plate 8; the cleaning teeth are used for cleaning the elastic filter plate 8. When the elastic filter plate 8 is deformed by the extrusion of the knocking hammer 76 and the supporting shaft 74, the elastic filter plate 8 deforms and bends towards one side of the water storage bin 12 and contacts with cleaning teeth on the cleaning plate 81, and the cleaning teeth are inserted into filter holes of the elastic filter plate 8 to achieve the aim of cleaning the elastic filter plate 8;
it should be noted that the plurality of cleaning teeth are arranged in an arc structure, that is, the length of the cleaning teeth on two sides is longer than that of the cleaning teeth on the middle part, so as to adapt to the deformed arc surface of the elastic filter plate 8.
As shown in fig. 4, the filter assembly further comprises a carrier plate 4, a first screening plate 5 and a second screening plate 6; the bearing plate 4, the first sieve plate 5 and the second sieve plate 6 are filled with a plurality of filter balls 9; the bearing plate 4, the first sieve plate 5 and the second sieve plate 6 are sequentially arranged from the top of the tower body 1 to the bottom of the tower body 1; the vertical shaft 7 is arranged adjacent to the second sieve plate 6, and a plurality of top blocks 63 are arranged at the bottom of the second sieve plate 6 and are arranged in an annular array; a second swing rod 75 is fixedly connected to the top of the vertical shaft 7 in a lateral direction; the second swing rod 75 is in sliding fit with the top block 63. When the waste gas is treated, the waste gas enters the bottom of the tower body 1 at a high speed, moves from bottom to top and sequentially passes through the second sieve plate 6, the first sieve plate 5 and the bearing plate 4; meanwhile, spraying liquid is continuously discharged into the tower body 1 through a circulating pipeline, the spraying liquid flows on the filter balls 9, waste gas contacts with the spraying liquid on the filter balls 9 when passing through the filter balls 9 and reacts, so that SOx/NOx and other pollution components in the waste gas generate solid impurities, the solid impurities further flow to the bottom of the tower body 1 along with the spraying liquid and are collected at the bottom of the tower bottom, and mixed liquid containing the spraying liquid and the solid impurities is filtered by the elastic filter plates 8 and then recycled;
it is noted that when the vertical shaft 7 rotates, the second swing rod 75 is driven to swing smoothly, the second swing rod 75 contacts the top block 63 in the circumferential swinging process, the top block 63 is driven to move upwards by extrusion, the second screen plate 6 moves upwards synchronously when the top block 63 moves upwards, and the top block 63 is arranged in an annular array, so that when the swing rod is separated from the top block 63, the second screen plate 6 and the top block 63 fall down quickly, the filter balls 9 on the second screen plate 6 can move fully, solid impurities on the surfaces of the filter balls 9 or in gaps between adjacent filter balls 9 can be shaken off conveniently, the rapid collection of the solid impurities is realized, and the influence on the subsequent waste gas treatment is avoided;
the bearing plate 4 is used for bearing the demister, and the absorbed waste gas is discharged out of the tower body 1 after water drops are removed by the demister;
as shown in fig. 3 to 4, a plurality of connecting lugs are fixedly connected to the side wall of the bottom of the tower body 1 corresponding to the second sieve plate 6; a connecting rod 61 is fixedly connected to the bottom of the second sieve plate 6, and the connecting rod 61 penetrates through the connecting lug; the connecting rod 61 is sleeved with a first spring 62, and the first spring 62 is fixedly connected between the second sieve plate 6 and the connecting lug. In order to enable the second sieve plate 6 to quickly recover after being extruded and moved upwards, the first spring 62 is fixedly connected with the connecting rod 61 and the connecting lug, when the second sieve plate 6 moves upwards, the first spring 62 is passively stretched, so that elastic potential energy is generated, when the top block 63 or the bottom of the second sieve plate 6 is not stressed, the second sieve plate 6 is driven to quickly reset through gravity and the elastic potential energy of the first spring 62, the purpose of vibration is achieved, the purpose of driving the filter ball 9 to move is achieved, and the collection of solid impurities is facilitated.
As shown in fig. 1 to 2 and 4, the circulation pipeline includes a first water pipe 31, a second water pipe 32 and a nozzle 33; the parts of the first water pipe 31 and the second water pipe 32 which are positioned in the tower body 1 are communicated with a plurality of nozzles 33; the first water pipe 31 extends between the bearing plate 4 and the first sieve plate 5; the second water pipe 32 extends between the first sieve plate 5 and the second sieve plate 6; the nozzles 33 on the first water pipe 31 are arranged adjacent to the bottom of the carrier plate 4, and the nozzles 33 on the second water pipe 32 are located between the first screening deck 5 and the second screening deck 6. Spraying and discharging the spray liquid into the tower body 1 by utilizing the first water pipe 31, the second water pipe 32 and the nozzle 33, so as to adsorb and react the SOx/NOx and other pollution components in the waste gas;
it should be noted that the nozzles 33 located between the first screen plate 5 and the second screen plate 6 spray the liquid column upwards, entrain the exhaust gas into the liquid column and contact the first screen plate 5 to generate droplets, and then the droplets falling downward collide with the liquid column sprayed upwards, so that the gas-liquid contact surface can be effectively increased, the exhaust gas is fully contacted with the spray liquid, meanwhile, the falling droplets can be contacted with the rising exhaust gas to complete adsorption, the exhaust gas passing through the second screen plate 6 is further contacted with the spray liquid between the first screen plate 5 and the second screen plate 6 to form solid impurities, and finally the purified exhaust gas passes through the bearing plate 4 to remove the water droplets through the demister and then is discharged out of the tower body 1.
As shown in fig. 6 to 7, the first screening deck 5 includes an outer ring 51 and a swirl plate 53; the cyclone plate 53 is rotatably connected in the outer ring 51, and the outer ring 51 is fixedly connected in the middle of the tower body 1 through screws; a plurality of thin rods 52 are fixedly connected to the inner side of the outer ring 51, and the thin rods 52 are arranged in a conical annular array; the filter balls 9 are uniformly distributed on the surfaces of the thin rods 52. When the liquid column impacts the first screen plate 5, the liquid column applies pressure to the bottom of the cyclone plate 53, when the bottom of the cyclone plate 53 is pressed, the cyclone plate 53 rotates, and the rotating cyclone plate 53 can scatter the liquid column sprayed upwards, so that the liquid column is uniformly dispersed around, and the air-liquid contact surface is further increased; the outer ring 51 is used for supporting the cyclone plate 53, the filter balls 9 are uniformly distributed on the surfaces of the thin rods 52, and when the waste gas passes through the first sieve plate 5, the waste gas passes through the cyclone plate 53 and contacts with a large number of filter balls 9 distributed on the surfaces of the thin rods 52, so that the passing time of the waste gas is slowed down, and the full adsorption of SOx/NOx and other pollution components in the waste gas is realized;
it should be noted that the cyclone plate 53 includes a fixed ring and a baffle plate, and the baffle plate is fixedly connected at an inclined angle to the inner side of the fixed ring and is arranged in an annular array, and when the bottom liquid column impacts on the baffle plate, pressure is applied to the bottom surface of the cyclone plate, so that the baffle plate generates acceleration tangential to the fixed ring, and the cyclone plate 53 rotates.
As shown in fig. 6 to 7, a first swing rod 54 is fixedly connected to the top of the cyclone plate 53, and the first swing rod 54 is arranged adjacent to the thin rod 52; the edge of the cyclone plate 53 is provided with a plurality of overflow grooves 55. Because a large number of filter balls 9 are piled up on the surface of the thin rod 52, and a large number of filter balls 9 keep an inverted cone-shaped structure, solid impurities can remain in gaps among the filter balls 9 and cannot smoothly move to the bottom of the tower body 1, and in order to conveniently collect the solid impurities, the first swing rod 54 is driven to rotate by the rotation of the cyclone plate 53, and when the first swing rod 54 rotates, the filter balls 9 on the surface of the thin rod 52 are intermittently extruded, so that the filter balls 9 move to generate gaps for the solid impurities to move downwards;
it should be noted that the first swing rod 54 rotates in the thin rod 52 and contacts with the inner side of the filter ball 9 carried between the adjacent thin rods 52, so as to squeeze the filter ball 9 and enable the filter ball 9 to move; overflow trough 55 allows the downward flow of spray liquid to pass.
As shown in fig. 1 to 2, a plurality of visual windows 11 are arranged on the outer surface of the tower body 1 at intervals, and the plurality of visual windows 11 respectively correspond to the bearing plate 4, the first screen plate 5 and the second screen plate 6. The visual window 11 is arranged, so that operators can conveniently observe the treatment condition of the waste gas in the tower body 1 at any time.
As shown in fig. 7, the outer ring 51 is provided with a ring groove, and a plurality of balls are connected in the ring groove in a rolling manner; the edge of the swirl plate 53 is rotatably connected to the inner side of the outer ring 51 via balls. The balls in the outer ring 51 facilitate the rotation of the whirl plate 53 in the outer ring 51 when the bottom of the whirl plate 53 is impacted.
A method for treating waste gas is characterized in that: the method comprises the following steps:
s1: firstly, starting fans at the outlet ends of a spray tower circulating pipeline and a clean gas pipeline, and running an air conditioner for a period of time;
s2: after the air conditioner of the spray tower stably operates for a period of time, introducing waste gas into the spray tower;
s3: the waste gas is controlled to enter the spray tower at a high speed and pass through the filter assembly at a retarded speed;
s4: observing the waste gas treatment condition in the spray tower through an observation window until purified gas is discharged through a gas purifying pipeline;
s5: detecting the content of purified gas pollutants at the outlet end of the purified gas pipeline, and quantitatively filling the spray liquid according to the yield of the pollutants in the purified gas.
Working principle: in the prior art, the waste gas is adsorbed in a layering manner by arranging a plurality of layers of fillers, so that SOx/NOx components contained in the waste gas can be removed fully in the moving process from the bottom of the spraying tower to the top of the spraying tower, the generated solid sulfide flows to the bottom of the tower along with the spraying liquid, the solid sulfide can be blocked by a filter screen, the spraying liquid can be recycled, but the filter screen is positioned in the tower body 1, when the filter screen is screened, the filter screen is blocked by the solid sulfide, the circulatory system is blocked, the utilization rate of the spraying liquid is reduced, the passing rate of the filter screen is gradually reduced after long-time operation, and the filter screen is required to be stopped for cleaning so as to prevent accidents caused by thorough blocking;
the device is used in the stage, firstly, a fan communicated with a gas purifying pipeline 2 is started, then spray liquid is sprayed into a tower body 1 through a circulating assembly, after the air tower runs for a period of time, a valve at an exhaust gas inlet 13 is opened, exhaust gas enters the tower body 1 at a high speed through the exhaust gas inlet 13, the exhaust gas in the tower body 1 moves from the bottom to the top of the tower, the exhaust gas passes through a filtering assembly in the moving process, pollutants such as SOx/NOx and the like contained in the exhaust gas are adsorbed, solid sulfides are formed and flow to the bottom of the tower along with the spray liquid, the exhaust gas after multi-level purification and filtration does not contain pollutants such as SOx/NOx and the like any more, or the residual content of pollutants such as SOx/NOx and the like reaches the emission standard, and then the purified gas is discharged into the atmosphere through a purifying pipeline;
it is noted that the exhaust gas enters the tower bottom through the exhaust gas inlet 13, and the wind speed is high before passing through the filtering component, and the flow speed of the exhaust gas in the filtering process in the tower body 1 is controlled to be about 2m/s so as to ensure the exhaust gas purifying efficiency;
when the waste gas enters the bottom of the tower body 1 at a high speed, the waste gas vertically blows on the fan blades 71 and promotes the fan blades 71 to drive the vertical shaft 7 to rotate, after the vertical shaft 7 rotates, the bent shaft 73 and the abutting shaft 74 can be driven to rotate circumferentially, in the circumferential rotation process of the abutting shaft 74, the abutting shaft 74 only can slide on the inner wall of the tower body 1 due to the extrusion of the inner wall of the tower body 1, and the second spring 72 is in a compressed state, when the abutting shaft 74 slides onto the elastic filter plate 8, the abutting shaft 74 can drive the knocking hammer 76 to extrude the elastic filter plate 8 rapidly under the action of elastic potential energy of the second spring 72, so that impurities such as blocked solid sulfides on the elastic filter plate 8 can be separated from the elastic filter plate 8 under the influence of acceleration, and the abutting shaft 74 drives the knocking hammer 76 to extrude the elastic filter plate 8 repeatedly as the waste gas continuously enters the bottom of the tower body 1, so as to complete the cleaning of blocked filter plate impurities on the elastic filter plate 8, the normal working period of the tower is prolonged, and the shutdown cleaning frequency of the knocking hammer is reduced; specifically, when the waste gas enters the bottom of the tower body 1 at a high speed, the fan blade 71 and the vertical shaft 7 are driven to rotate, when the vertical shaft 7 rotates, the supporting shaft 74, the second spring 72 and the knocking hammer 76 are synchronously driven to smoothly move on the inner wall of the tower body 1 until the knocking hammer 76 moves from the inner wall of the tower body 1 to the elastic filter plate 8, the supporting shaft 74 is extruded to move in the penetrating groove under the elastic potential energy of the second spring 72, the knocking hammer 76 can extrude the elastic filter plate 8 to deform, and after repeated times, the cleaning effect of blocking impurities on the elastic filter plate 8 can be achieved, so that the working period of the spray tower is prolonged, and the cleaning frequency is reduced.
When the waste gas is treated, the waste gas enters the bottom of the tower body 1 at a high speed, moves from bottom to top and sequentially passes through the second sieve plate 6, the first sieve plate 5 and the bearing plate 4; meanwhile, spraying liquid is continuously discharged into the tower body 1 through a circulating pipeline, the spraying liquid flows on the filter balls 9, waste gas contacts with the spraying liquid on the filter balls 9 when passing through the filter balls 9 and reacts, so that SOx/NOx and other pollution components in the waste gas generate solid impurities, the solid impurities further flow to the bottom of the tower body 1 along with the spraying liquid and are collected at the bottom of the tower bottom, and mixed liquid containing the spraying liquid and the solid impurities is filtered by the elastic filter plates 8 and then recycled;
it is noted that when the vertical shaft 7 rotates, the second swing rod 75 is driven to swing smoothly, the second swing rod 75 contacts the top block 63 in the circumferential swinging process, the top block 63 is driven to move upwards by extrusion, the second screen plate 6 moves upwards synchronously when the top block 63 moves upwards, and the top block 63 is arranged in an annular array, so that when the swing rod is separated from the top block 63, the second screen plate 6 and the top block 63 fall down quickly, the filter balls 9 on the second screen plate 6 can move fully, solid impurities on the surfaces of the filter balls 9 or in gaps between adjacent filter balls 9 can be shaken off conveniently, the rapid collection of the solid impurities is realized, and the influence on the subsequent waste gas treatment is avoided; secondly, in order to enable the second sieve plate 6 to quickly recover after being extruded and moved upwards, the first springs 62 are used for fixedly connecting the connecting rods 61 and the connecting lugs, when the second sieve plate 6 moves upwards, the first springs 62 are passively stretched, so that elastic potential energy is generated, when the top block 63 or the bottom of the second sieve plate 6 is not stressed, the second sieve plate 6 is driven to quickly reset through gravity and the elastic potential energy of the first springs 62, the purpose of vibration is achieved, the purpose of driving the filter balls 9 to move is achieved, and the collection of solid impurities is facilitated.
The nozzles 33 positioned between the first screen plate 5 and the second screen plate 6 spray the liquid column upwards, and the waste gas is involved in the liquid column and contacts the first screen plate 5 to generate liquid drops, then the liquid drops falling downwards collide with the liquid column sprayed upwards, so that the gas-liquid contact surface can be effectively increased, the waste gas is fully contacted with spray liquid, meanwhile, the falling liquid drops can be contacted with the rising waste gas to complete adsorption, the waste gas passing through the second screen plate 6 is further contacted with the spray liquid between the first screen plate 5 and the second screen plate 6 to form solid impurities, and finally the purified waste gas passes through the bearing plate 4 to remove the water drops through a demister and then is discharged out of the tower body 1; when the liquid column impacts the first screen plate 5, the liquid column applies pressure to the bottom of the cyclone plate 53, when the bottom of the cyclone plate 53 is pressed, the cyclone plate 53 rotates, and the rotating cyclone plate 53 can scatter the liquid column sprayed upwards, so that the liquid column is uniformly dispersed around, and the air-liquid contact surface is further increased; the outer ring 51 is used for supporting the cyclone plate 53, the filter balls 9 are uniformly distributed on the surfaces of the thin rods 52, and when the waste gas passes through the first sieve plate 5, the waste gas passes through the cyclone plate 53 and contacts with a large number of filter balls 9 distributed on the surfaces of the thin rods 52, so that the passing time of the waste gas is slowed down, and the full adsorption of SOx/NOx and other pollution components in the waste gas is realized;
because a large amount of filter balls 9 are piled up on the surface of the thin rod 52, a large amount of filter balls 9 keep an inverted cone-shaped structure, so that solid impurities can remain in gaps between the filter balls 9 and cannot smoothly move to the bottom of the tower body 1, and in order to conveniently collect the solid impurities, the first swing rod 54 is driven to rotate by rotating the cyclone plate 53, and when the first swing rod 54 rotates, the filter balls 9 on the surface of the thin rod 52 are intermittently extruded, so that the filter balls 9 can move to generate gaps for the solid impurities to move downwards along with the spray liquid.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An exhaust gas treatment device comprising:
a tower body (1); an exhaust gas inlet (13) is formed in the bottom of the tower body (1), and a clean gas pipeline (2) is fixedly connected to the top of the tower body (1) through a flange;
a filter assembly; the filtering component is arranged in the tower body (1) and is used for filtering waste gas;
a circulation assembly; the circulation assembly comprises a water storage bin (12); the water storage bin (12) is communicated with the bottom of the tower body (1); the circulating assembly further comprises a circulating pipeline; one end of the circulating pipeline is communicated with the water storage bin (12), and the other end of the circulating pipeline penetrates through the tower body (1); an elastic filter plate (8) is fixedly connected between the water storage bin (12) and the tower body (1);
the method is characterized in that:
the filter assembly further comprises a vertical shaft (7); the vertical shaft (7) is rotationally connected to the bottom surface of the tower body (1); the middle part of the vertical shaft (7) is fixedly connected with a fan blade (71) corresponding to the waste gas inlet (13); a bent shaft (73) is fixedly connected to the bottom side of the vertical shaft (7) in a lateral direction; the bottom of the bent shaft (73) is parallel to the bottom surface of the tower body (1) and is connected with a supporting shaft (74) in a penetrating way; one end of the supporting shaft (74) facing the inner wall of the tower body (1) is fixedly connected with a knocking hammer (76); the supporting shaft (74) is fixedly connected with the vertical shaft (7) through a second spring (72).
2. An exhaust gas treatment device according to claim 1, wherein: the bottom of the bent shaft (73) is parallel to the bottom surface of the tower body (1), and a through groove is formed in the bottom of the bent shaft (73); the supporting shaft (74) is in sliding fit with the through groove; the side wall of the vertical shaft (7) is fixedly connected with a fixed shaft corresponding to the through groove; one end of the second spring (72) is sleeved on the fixed shaft.
3. An exhaust gas treatment device according to claim 2, wherein: one end of the elastic filter plate (8) facing the water storage bin (12) is fixedly connected with a cleaning plate (81), and one side of the cleaning plate (81) facing the elastic filter plate (8) is fixedly connected with a plurality of cleaning teeth; the cleaning teeth are used for cleaning the elastic filter plate (8).
4. An exhaust gas treatment device according to claim 3, wherein: the filter assembly further comprises a bearing plate (4), a first sieve plate (5) and a second sieve plate (6); the bearing plate (4), the first sieve plate (5) and the second sieve plate (6) are filled with a plurality of filter balls (9); the bearing plate (4), the first sieve plate (5) and the second sieve plate (6) are sequentially arranged at intervals from the top of the tower body (1) to the bottom of the tower body (1); the vertical shaft (7) is arranged adjacent to the second sieve plate (6), and a plurality of top blocks (63) are arranged at the bottom of the second sieve plate (6) and are arranged in an annular array; a second swing rod (75) is fixedly connected to the top side of the vertical shaft (7) in a lateral direction; the second swing rod (75) is in sliding fit with the top block (63).
5. An exhaust gas treatment device according to claim 4, wherein: a plurality of connecting lugs are fixedly connected on the side wall of the bottom of the tower body (1) corresponding to the second sieve plate (6); a connecting rod (61) is fixedly connected to the bottom of the second sieve plate (6), and the connecting rod (61) penetrates through the connecting lug; the connecting rod (61) is sleeved with a first spring (62), and the first spring (62) is fixedly connected between the second sieve plate (6) and the connecting lug.
6. An exhaust gas treatment device according to claim 5, wherein: the circulating pipeline comprises a first water pipe (31), a second water pipe (32) and a nozzle (33); the parts of the first water pipe (31) and the second water pipe (32) which are positioned in the tower body (1) are communicated with a plurality of nozzles (33); the first water pipe (31) is positioned between the bearing plate (4) and the first sieve plate (5); the second water pipe (32) is positioned between the first sieve plate (5) and the second sieve plate (6); the nozzles (33) on the first water pipe (31) are arranged adjacent to the bottom of the bearing plate (4), and the nozzles (33) on the second water pipe (32) are positioned between the first sieve plate (5) and the second sieve plate (6).
7. An exhaust gas treatment device according to claim 6, wherein: the first sieve plate (5) comprises an outer ring (51) and a cyclone plate (53); the cyclone plate (53) is rotationally connected in the outer ring (51), and the outer ring (51) is fixedly connected in the middle of the tower body (1) through screws; a plurality of thin rods (52) are fixedly connected to the inner side of the outer ring (51), and the thin rods (52) are arranged in a conical annular array; the filter balls (9) are uniformly distributed on the surfaces of the thin rods (52).
8. An exhaust gas treatment device according to claim 7, wherein: a first swing rod (54) is fixedly connected to the top of the cyclone plate (53), and the first swing rod (54) is arranged adjacent to the thin rod (52); a plurality of overflow grooves (55) are formed in the edge of the cyclone plate (53).
9. An exhaust gas treatment device according to claim 8, wherein: a plurality of visual windows (11) are formed in the outer surface of the tower body (1) at intervals, and the plurality of visual windows (11) respectively correspond to the bearing plate (4), the first sieve plate (5) and the second sieve plate (6); a ring groove is formed in the outer ring (51), and a plurality of balls are connected in the ring groove in a rolling manner; the edge of the swirl plate (53) is rotationally connected to the inner side of the outer ring (51) through balls.
10. A method for treating waste gas is characterized in that: the method comprises the following steps:
s1: firstly, starting fans at the outlet ends of a spray tower circulating pipeline and a clean gas pipeline, and running an air conditioner for a period of time;
s2: after the air conditioner of the spray tower stably operates for a period of time, introducing waste gas into the spray tower;
s3: the waste gas is controlled to enter the spray tower at a high speed and pass through the filter assembly at a retarded speed;
s4: observing the waste gas treatment condition in the spray tower through an observation window until purified gas is discharged through a gas purifying pipeline;
s5: detecting the content of purified gas pollutants at the outlet end of the purified gas pipeline, and quantitatively filling the spray liquid according to the yield of the pollutants in the purified gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311657115.3A CN117504566A (en) | 2023-12-05 | 2023-12-05 | Waste gas treatment device and treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311657115.3A CN117504566A (en) | 2023-12-05 | 2023-12-05 | Waste gas treatment device and treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117504566A true CN117504566A (en) | 2024-02-06 |
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ID=89758717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311657115.3A Pending CN117504566A (en) | 2023-12-05 | 2023-12-05 | Waste gas treatment device and treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117504566A (en) |
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2023
- 2023-12-05 CN CN202311657115.3A patent/CN117504566A/en active Pending
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