CN112957894A - High-efficient integration landfill leachate sewage station exhaust treatment device - Google Patents
High-efficient integration landfill leachate sewage station exhaust treatment device Download PDFInfo
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- CN112957894A CN112957894A CN202110158124.2A CN202110158124A CN112957894A CN 112957894 A CN112957894 A CN 112957894A CN 202110158124 A CN202110158124 A CN 202110158124A CN 112957894 A CN112957894 A CN 112957894A
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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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
- B01D53/007—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 irradiation
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
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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
- B01D53/34—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
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention provides a high-efficiency integrated waste leachate sewage station waste gas treatment device which comprises a silk screen defoaming device, an acid washing spray tower, a sodium hypochlorite advanced oxidation tower, a high-efficiency integrated demister, a UV photolysis treatment device, a discharge chimney and a centrifugal fan, wherein the silk screen defoaming device, the acid washing spray tower, the sodium hypochlorite advanced oxidation tower, the high-efficiency integrated demister, the UV photolysis treatment device, the centrifugal fan and the discharge chimney are communicated in sequence. The invention has the beneficial effects that: 1. the waste gas treatment device for the high-efficiency integrated landfill leachate sewage station adopts the high-efficiency integrated demister, so that the demisting effect is better; 2. the efficient integrated waste leachate sewage station waste gas treatment device can automatically clean the efficient integrated demister through the backwashing device so as to prevent solid pollutants from blocking the filler defogging layer and the folded plate defogging layer and prevent the pollutants from covering and blocking the cooling defogging layer, thereby influencing the heat exchange and defogging effects and saving time and labor; 3. the waste gas treatment device of the high-efficiency integrated landfill leachate sewage station is provided with the cooling device, so that the automatic defogging efficiency is higher.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a high-efficiency integrated waste leachate sewage station waste gas treatment device.
Background
In recent years, with the rapid development of socioeconomic performance in China and the improvement of the living standard of residents, the clothes, eating and housing of people are greatly improved, and the society and people put forward higher requirements on the quality of atmospheric environment.
The waste gas of the landfill leachate sewage station refers to the waste gas generated by each sewage tank in the treatment process of the landfill leachate, and the components of the waste gas mainly comprise benzene, toluene, xylene, xylenol, acrylonitrile, acrolein, methanol and the like. The organic substances are dissipated into the atmosphere and cause various damages to human bodies, for example, benzene organic substances damage the central nerves of people and cause the disorder of nervous systems, when the concentration of benzene vapor is too high (the content in the air reaches 2 percent), lethal acute poisoning can be caused, when nitrile organic substances are poisoned, dyspnea, severe asphyxia and even loss of consciousness until death can be caused, acrolein has strong irritation to mucous membranes, and the like. Threatens the physical health of people, has great harm to the economic development and the social development, and seriously restricts the sustainable development of the social and economic aspects.
Disclosure of Invention
The invention provides a high-efficiency integrated waste leachate sewage station waste gas treatment device which comprises a silk screen defoaming device, an acid washing spray tower, a sodium hypochlorite advanced oxidation tower, a high-efficiency integrated demister, a UV photolysis treatment device, a discharge chimney and a centrifugal fan, wherein the silk screen defoaming device, the acid washing spray tower, the sodium hypochlorite advanced oxidation tower, the high-efficiency integrated demister, the UV photolysis treatment device, the centrifugal fan and the discharge chimney are communicated in sequence.
As a further improvement of the invention, a plurality of silk screens are arranged in the silk screen defoaming device, the silk screen defoaming device is provided with a silk screen defoaming device air inlet and a silk screen defoaming device air outlet, and the silk screen defoaming device air outlet is communicated with the pickling spray tower.
As a further improvement of the invention, a first atomization bin and a first packing layer are arranged in the pickling spray tower, a pickling spray tower air inlet and a pickling spray tower air outlet are arranged on the pickling spray tower, the pickling spray tower air inlet is communicated with the wire mesh defoaming device air outlet, and the pickling spray tower air outlet is communicated with the sodium hypochlorite advanced oxidation tower; the waste gas treatment device for the landfill leachate sewage station comprises a first spray circulation system, wherein the first spray circulation system is communicated with the pickling spray tower; the first spray circulation system comprises a first spray header, a first circulation spray pipe, a first circulation water pump and a first circulation water tank, the first circulation water tank is communicated with the first circulation water pump, the first circulation water pump is communicated with the first circulation spray pipe, and the first spray header is mounted on the first circulation spray pipe; and a first inspection window is arranged on the first atomization bin.
As a further improvement of the invention, a second atomization bin and a second packing layer are arranged in the sodium hypochlorite advanced oxidation tower, an advanced oxidation tower air inlet and an advanced oxidation tower air outlet are arranged on the sodium hypochlorite advanced oxidation tower, the advanced oxidation tower air inlet is communicated with the pickling spray tower air outlet, and the advanced oxidation tower air outlet is communicated with the high-efficiency integrated demister; the waste gas treatment device of the landfill leachate sewage station comprises a second spraying circulating system, wherein the second spraying circulating system is communicated with the sodium hypochlorite advanced oxidation tower; the second spray circulation system comprises a second spray header, a second circulation spray pipe, a second circulation water pump and a second circulation water tank, the second circulation water tank is communicated with the second circulation water pump, the second circulation water pump is communicated with the second circulation spray pipe, and the second spray header is installed on the second circulation spray pipe; and a second inspection window is arranged on the second atomization bin.
As a further improvement of the invention, the high-efficiency integrated demister comprises a high-efficiency integrated demister box body, a cooling device, a backwashing device, a cooling demisting layer, a filler demisting layer and a folded plate demisting layer, wherein the cooling demisting layer, the filler demisting layer and the folded plate demisting layer are installed in the high-efficiency integrated demister box body, the cooling device and the backwashing device are respectively communicated with the high-efficiency integrated demister box body, a waste gas inlet and a clean gas outlet are formed in the high-efficiency integrated demister box body, the waste gas inlet is communicated with the sodium hypochlorite advanced oxidation tower, and the clean gas outlet is communicated with the UV photolysis treatment device. The filler demisting layer and the folded plate demisting layer are separated by the filler demisting layer and fall down under the action of liquid buoyancy and surface tension through liquid foam in gas, or water drops in the gas impact on the baffle plate under the action of inertia through changing the flow direction of the gas, so that the aim of demisting is fulfilled.
As a further improvement of the invention, the cooling device comprises a cooling water inlet pipe, a cooling water outlet pipe, a cooling water circulating water pump and a cooling water tank, wherein the cooling defogging layer is provided with a water inlet and a water outlet, one end of the cooling water inlet pipe is communicated with the water inlet end, the other end of the cooling water inlet pipe is communicated with the cooling water circulating water pump, and the cooling water circulating water pump is communicated with the cooling water tank; one end of the cooling water outlet pipe is communicated with the water outlet, and the other end of the cooling water outlet pipe is communicated with the cooling water tank. Because the cooling water temperature is lower, and the exhaust gas temperature generally all is normal atmospheric temperature and above, the cooling water in the cooling defogging layer carries out the heat transfer with the exhaust gas that enters into in the high-efficient integration defroster, gets off the moisture condensation in the exhaust gas, reaches the effect of defogging.
As a further improvement of the invention, the backwashing device comprises a backwashing water tank, a backwashing water pump, a backwashing liquid inlet pipe and a high-pressure spray head, wherein the high-pressure spray head is installed at one end of the backwashing liquid inlet pipe, the other end of the backwashing liquid inlet pipe is communicated with the backwashing water pump, and the backwashing water pump is communicated with the backwashing water tank. Due to the complex composition of the exhaust gas, many pollutant components are contained in the exhaust gas, such as: granule solid pollutant, oily pollutant etc, after high-efficient integration defroster operation a period, granule solid pollutant, or oily pollutant etc. can block up or cover the cooling and remove the fog layer, the filler removes the fog layer, the folded plate removes the fog layer, lead to the defogging effect worsen, back flush unit can be opened this moment, remove the fog layer to the cooling, the filler removes the fog layer, the folded plate removes the fog layer and washes, with granule solid pollutant, or oily pollutant etc. is got rid of, so that its defogging effect resumes to the optimum, guarantee the defogging effect.
As a further improvement of the invention, the high-efficiency integrated demister comprises a liquid discharge pipeline and a liquid discharge valve, the liquid discharge valve is mounted on the liquid discharge pipeline, and the liquid discharge pipeline is mounted at the bottommost part of a box body of the high-efficiency integrated demister.
As a further improvement of the invention, a pre-filter cotton, a high-energy UV lamp tube assembly, an activated carbon filter cotton, a control switch and an electric box are arranged in the UV photolysis processing device, the control switch is connected with the high-energy UV lamp tube assembly, the electric box is responsible for supplying power to the control switch and the high-energy UV lamp tube assembly, the UV photolysis processing device is provided with a photolysis processing device air inlet and a photolysis processing device air outlet, the photolysis processing device air inlet is communicated with the defogging device air outlet, and the photolysis processing device air outlet is communicated with the centrifugal fan; the front filter cotton comprises water absorption filter cotton and primary filter cotton; the high-energy UV lamp tube assembly comprises a high-energy UV lamp tube and a rectifier, and the high-energy UV lamp tube is connected with the rectifier; the high-energy UV lamp tubes are controlled in a grouping mode, and the control switch can adjust the starting number of the high-energy UV lamp tubes according to the change of the waste gas quantity or the pollutant concentration.
As a further improvement of the invention, the waste gas treatment device of the landfill leachate sewage station comprises a fan soft connecting piece, wherein the centrifugal fan is provided with an air inlet and an air outlet, and the air inlet and the air outlet of the centrifugal fan are respectively provided with the fan soft connecting piece; the waste gas treatment device for the garbage leachate sewage station comprises a chimney rain cap, wherein one end of the discharge chimney is communicated with the centrifugal fan through the fan soft connecting piece, and the chimney rain cap is installed at the other end of the discharge chimney; the high-energy UV lamp tube adopts a 185nm +254nm double-waveband quartz lamp tube; the waste gas treatment device for the landfill leachate sewage station comprises a silk screen defoaming device support frame, a UV photolysis treatment device support frame and a fan support frame, wherein the silk screen defoaming device support frame is arranged below the silk screen defoaming device; the waste leachate sewage station waste gas treatment device comprises a waste gas collecting cover plate and a pipeline.
The invention has the beneficial effects that: 1. the waste gas treatment device of the high-efficiency integrated landfill leachate sewage station adopts the high-efficiency integrated demister 4, so that the demisting effect is better; 2. the efficient integrated waste leachate sewage station waste gas treatment device can automatically clean the efficient integrated demister through the backwashing device so as to prevent solid pollutants from blocking the filler defogging layer and the folded plate defogging layer and prevent the pollutants from covering and blocking the cooling defogging layer, thereby influencing the heat exchange and defogging effects and saving time and labor; 3. the waste gas treatment device of the high-efficiency integrated landfill leachate sewage station is provided with the cooling device, so that the automatic defogging efficiency is higher; 4. the liquid discharge pipeline is arranged at the bottommost part of the efficient integrated demister of the efficient integrated landfill leachate sewage station waste gas treatment device, so that the liquid discharge effect is better.
Drawings
FIG. 1 is a structural diagram of a waste gas treatment device of a high-efficiency integrated landfill leachate sewage station of the invention;
FIG. 2 is a block diagram of a wire mesh defoaming device of the present invention;
FIG. 3 is a diagram of the acid wash spray tower of the present invention;
FIG. 4 is a diagram showing the structure of a sodium hypochlorite advanced oxidation tower of the present invention;
FIG. 5 is a schematic diagram of the high efficiency integrated mist eliminator of the present invention;
FIG. 6 is a view showing the structure of a UV photolysis processing apparatus according to the present invention;
fig. 7 is a structural view of the discharge chimney and the centrifugal fan in connection with the present invention.
Detailed Description
As shown in fig. 1, the invention discloses a high-efficiency integrated landfill leachate sewage station waste gas treatment device, which comprises a wire mesh defoaming device 25, an acid washing spray tower 26, a sodium hypochlorite advanced oxidation tower 27, a high-efficiency integrated demister 4, a UV photolysis treatment device 28, a discharge chimney 21 and a centrifugal fan 23, wherein the wire mesh defoaming device 25, the acid washing spray tower 26, the sodium hypochlorite advanced oxidation tower 27, the high-efficiency integrated demister 4, the UV photolysis treatment device 28, the centrifugal fan 23 and the discharge chimney 21 are communicated in sequence.
As shown in fig. 2, a plurality of wire meshes 1 are arranged inside the wire mesh defoaming device 25, a wire mesh defoaming device air inlet 60 and a wire mesh defoaming device air outlet 61 are arranged on the wire mesh defoaming device 25, and the wire mesh defoaming device air outlet 61 is communicated with the pickling spray tower 26.
As shown in fig. 3, a first atomization bin 7 and a first packing layer 8 are arranged in the pickling spray tower 26, a pickling spray tower air inlet 3 and a pickling spray tower air outlet 29 are arranged on the pickling spray tower 26, the pickling spray tower air inlet 3 is communicated with the wire mesh defoaming device air outlet 61, and the pickling spray tower air outlet 29 is communicated with the sodium hypochlorite advanced oxidation tower 27; the waste gas treatment device of the landfill leachate sewage station comprises a first spray circulation system, wherein the first spray circulation system is communicated with the acid washing spray tower 26; the first spray circulation system comprises a first spray header 5, a first circulation spray pipe 6, a first circulation water pump 10 and a first circulation water tank 11, wherein the first circulation water tank 11 is communicated with the first circulation water pump 10, the first circulation water pump 10 is communicated with the first circulation spray pipe 6, and the first spray header 5 is arranged on the first circulation spray pipe 6; and a first inspection window 9 is arranged on the first atomization bin 7.
As shown in fig. 4, a second atomization bin 30 and a second packing layer 31 are arranged in the sodium hypochlorite advanced oxidation tower 27, an advanced oxidation tower air inlet 32 and an advanced oxidation tower air outlet 33 are arranged on the sodium hypochlorite advanced oxidation tower 27, the advanced oxidation tower air inlet 32 is communicated with the pickling spray tower air outlet 29, and the advanced oxidation tower air outlet 33 is communicated with the high-efficiency integrated demister 4; the waste gas treatment device of the landfill leachate sewage station comprises a second spraying circulating system, wherein the second spraying circulating system is communicated with the sodium hypochlorite advanced oxidation tower 27; the second spray circulation system comprises a second spray header 36, a second circulation spray pipe 37, a second circulation water pump 38 and a second circulation water tank 62, the second circulation water tank 62 is communicated with the second circulation water pump 38, the second circulation water pump 38 is communicated with the second circulation spray pipe 37, and the second spray header 36 is installed on the second circulation spray pipe 37; and a second inspection window 39 is arranged on the second atomization bin 30.
As shown in fig. 5, the high-efficiency integrated demister 4 includes a high-efficiency integrated demister box 56, a cooling device, a backwashing device, a cooling demisting layer 57, a filler demisting layer 42, and a folded plate demisting layer 43, the cooling demisting layer 57, the filler demisting layer 42, and the folded plate demisting layer 43 are installed in the high-efficiency integrated demister box 56, the cooling device and the backwashing device are respectively communicated with the high-efficiency integrated demister box 56, a waste gas inlet 44 and a clean gas outlet 45 are provided on the high-efficiency integrated demister box 56, the waste gas inlet 44 is communicated with the advanced oxidation tower 27, and the clean gas outlet 45 is communicated with the UV photolysis treatment device 28.
The cooling device comprises a cooling water inlet pipe 46, a cooling water outlet pipe 47, a cooling water circulating water pump 48 and a cooling water tank 49, the cooling defogging layer 57 is provided with a water inlet and a water outlet, one end of the cooling water inlet pipe 46 is communicated with the water inlet, the other end of the cooling water inlet pipe 46 is communicated with the cooling water circulating water pump 48, and the cooling water circulating water pump 48 is communicated with the cooling water tank 49; one end of the cooling water outlet pipe 47 is communicated with the water outlet, and the other end of the cooling water outlet pipe 47 is communicated with the cooling water tank 49. The cooling water tank 49 is filled with cooling water 59.
The backwashing device comprises a backwashing water tank 50, a backwashing water pump 51, a backwashing liquid inlet pipe 52 and a high-pressure spray nozzle 53, wherein the high-pressure spray nozzle 53 is installed at one end of the backwashing liquid inlet pipe 52, the other end of the backwashing liquid inlet pipe 52 is communicated with the backwashing water pump 51, and the backwashing water pump 51 is communicated with the backwashing water tank 50. The backwash water tank 50 is filled with a backwash liquid 58.
The high-efficiency integrated demister 4 comprises a liquid discharge pipeline 54 and a liquid discharge valve 55, the liquid discharge valve 55 is mounted on the liquid discharge pipeline 54, and the liquid discharge pipeline 54 is mounted at the bottommost part of the high-efficiency integrated demister box 56.
As shown in fig. 6, a pre-filter cotton, a high-energy UV lamp tube assembly, an activated carbon filter cotton 17, a control switch and an electric box are arranged in the UV photolysis processing device 28, the control switch is connected with the high-energy UV lamp tube assembly, the electric box is responsible for supplying power to the control switch and the high-energy UV lamp tube assembly, a photolysis processing device air inlet 40 and a photolysis processing device air outlet 41 are arranged on the UV photolysis processing device 28, the photolysis processing device air inlet 40 is communicated with the clean gas air outlet 45, and the photolysis processing device air outlet 41 is communicated with the centrifugal fan 23; the front filter cotton comprises water absorption filter cotton 15 and primary filter cotton 16; the high-energy UV lamp tube assembly comprises a high-energy UV lamp tube 18 and a rectifier, wherein the high-energy UV lamp tube 18 is connected with the rectifier; the high-energy UV lamps 18 are controlled in groups, and the control switch can adjust the opening number of the high-energy UV lamps 18 according to the change of the waste gas amount or the pollutant concentration.
As shown in fig. 7, the waste gas treatment device of the landfill leachate sewage station comprises a fan soft connecting piece 22, wherein the centrifugal fan 23 is provided with a gas inlet and a gas outlet, and the fan soft connecting piece 22 is respectively installed at the gas inlet and the gas outlet of the centrifugal fan 23; the waste gas treatment device for the landfill leachate sewage station comprises a chimney rain cap 20, wherein one end of a discharge chimney 21 is communicated with a centrifugal fan through a fan soft connector 22, and the chimney rain cap 20 is installed at the other end of the discharge chimney 21; the high-energy UV lamp tube 18 adopts a 185nm +254nm double-waveband quartz lamp tube; the waste leachate sewage station waste gas treatment device comprises a silk screen defoaming device support frame 2, a UV photolysis treatment device support frame 19 and a fan support frame 24, wherein the silk screen defoaming device support frame 2 is installed below a silk screen defoaming device 25, the UV photolysis treatment device support frame 19 is installed below a UV photolysis treatment device 28, and the fan support frame 24 is installed below a centrifugal fan 23; the waste leachate sewage station waste gas treatment device comprises a waste gas collecting cover plate and a pipeline.
The invention discloses a high-efficiency integrated waste leachate sewage station waste gas treatment device which has the following working principle:
because the general top in landfill leachate sewage treatment pond is uncovered, and waste gas is difficult to collect or collection efficiency is low, and this neotype landfill leachate sewage station exhaust treatment device is showing improvement collection efficiency through adding the lid earlier to it and handling.
Because the garbage leachate sewage treatment generally adopts a biochemical method, when the COD of inlet water is higher or the aeration quantity is increased, a large amount of foam is easily generated in the tank, and the components of waste gas generated by the tank are more complex, according to project experience, the circulating liquid of a primary spray tower of the waste gas treatment process easily generates a large amount of foam, and the foam overflows out of a water tank when the foam is excessive to pollute a surrounding spray tower base and surrounding equipment; after the foam is broken, the waste gas is dissipated to the periphery of the treatment equipment, and the physical health of workers is threatened; and foam spills creating a poor look and feel. To this, add silk screen defoaming device 25 before pickling spray tower 26 and carry out physics interception defoaming to the foam that comes from in landfill leachate sewage treatment pond waste gas, later get into pickling spray tower 26 (pickling sprays + defoaming), the gas-liquid countercurrent motion is made with the absorption liquid in pickling spray tower 26 to the air current, through first packing layer 8, waste gas and absorption liquid carry out the double-phase abundant contact of gas-liquid and handle, wherein first circulating water tank 11 top sets up mechanical runner and carries out physics defoaming, prevent that foam too much and then overflow water tank in first circulating water tank 11. Then passes through a sodium hypochlorite advanced oxidation tower 27, further oxidizes and absorbs pollutants in the waste gas through gas-liquid countercurrent spraying, and simultaneously, alkali liquor is added into the circulating liquid to absorb acid gas generated after the neutralization and acid washing. Pass through high-efficient integration defroster 4 again (this high-efficient integration defroster 4 can adopt vertical or horizontal structure) to carry out the heat transfer condensation to the remaining steam in the waste gas, after the physics interception defogging, reduce the waste gas moisture content, it sets up 28 to get into UV photodissociation processing, UV photodissociation processing sets up 28 inside pollutant of getting rid of through high energy ultraviolet light and ozonolysis, UV photodissociation treatment facility 28 is by two-layer leading filter pulp (the one deck absorbs water filter pulp 15, the one deck is just imitated filter pulp 16), high-energy UV lamp tube subassembly, control switch and electronic box etc. are constituteed. The two layers of pre-filter cotton are mainly used for removing residual water mist and fine dust in waste gas so as to reduce the influence on rear-end equipment (for example, the water mist can cause circuit failure, and the dust is attached to the high-energy UV lamp tube to influence the removal efficiency of pollutants), and prolong the service life. High energy UV ultraviolet ray beam and ozone carry out the concerted decomposition oxidation reaction to waste gas, the waste gas material is through the energy of absorption photon or other particles for the chemical bond fracture, the degradation is changed into low molecular compound, water and carbon dioxide, the molecular bond of bacterium in the high energy UV beam fissile waste gas simultaneously destroys the nucleic acid (DNA) of bacterium, oxidation reaction is carried out to rethread ozone, reach the purpose of getting rid of the pollutant and killing the bacterium, two wave band combined use can be more high-efficient stable reduction exhaust gas concentration. The high-energy UV lamp tubes 18 are controlled in groups, and the opening number of the high-energy UV lamp tubes 18 can be adjusted according to the change of the waste gas amount or the pollutant concentration, so that the energy consumption is reduced. The waste gas after multi-stage purification meets the emission requirement of emission standard, and is guided to the emission chimney 21 through the centrifugal fan 23 to reach the emission standard. Meanwhile, the control system of the whole device is provided with a wind speed measuring instrument, a frequency converter, a PLC and the like, so that the whole odor treatment device can automatically adjust the water quantity of the circulating water pump and the opening quantity of the UV lamp tubes according to the odor air quantity, and the energy consumption can be reduced while the treatment effect is achieved.
The invention has the beneficial effects that: 1. the waste gas treatment device of the high-efficiency integrated landfill leachate sewage station adopts the high-efficiency integrated demister 4, so that the demisting effect is better; 2. the efficient integrated waste leachate sewage station waste gas treatment device can automatically clean the efficient integrated demister through the backwashing device so as to prevent solid pollutants from blocking the filler defogging layer and the folded plate defogging layer and prevent the pollutants from covering and blocking the cooling defogging layer, thereby influencing the heat exchange and defogging effects and saving time and labor; 3. the waste gas treatment device of the high-efficiency integrated landfill leachate sewage station is provided with the cooling device, so that the automatic defogging efficiency is higher; 4, the liquid discharge pipeline is arranged at the bottommost part of the high-efficiency integrated demister 4 of the high-efficiency integrated landfill leachate sewage station waste gas treatment device, so that the liquid discharge effect is better.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a high-efficient integration landfill leachate sewage station exhaust treatment device which characterized in that: the device comprises a wire mesh defoaming device (25), an acid washing spray tower (26), a sodium hypochlorite advanced oxidation tower (27), a high-efficiency integrated demister (4), a UV photolysis treatment device (28), a discharge chimney (21) and a centrifugal fan (23), wherein the wire mesh defoaming device (25), the acid washing spray tower (26), the sodium hypochlorite advanced oxidation tower (27), the high-efficiency integrated demister (4), the UV photolysis treatment device (28), the centrifugal fan (23) and the discharge chimney (21) are communicated in sequence; high-efficient integration defroster (4) are including high-efficient integration defroster box (56), cooling device, back flush unit, cooling defogging layer (57), filler defogging layer (42), folded plate defogging layer (43), install in high-efficient integration defroster box (56) cooling defogging layer (57) filler defogging layer (42) folded plate defogging layer (43), cooling device back flush unit respectively with high-efficient integration defroster box (56) are linked together, be equipped with on high-efficient integration defroster box (56) waste gas air inlet (44), clean gas outlet (45), waste gas air inlet (44) with sodium hypochlorite advanced oxidation tower (27) are linked together, clean gas outlet (45) with UV photodissociation processing apparatus (28) are linked together.
2. The high-efficiency integrated landfill leachate sewage station exhaust treatment device of claim 1, wherein: the silk screen removes inside a plurality of silk screens (1) that are equipped with of foam device (25), be equipped with silk screen on silk screen removes foam device (25) and remove foam device air inlet (60), silk screen removes foam device gas outlet (61), silk screen remove foam device gas outlet (61) with pickling spray column (26) are linked together.
3. The high-efficiency integrated landfill leachate sewage station exhaust treatment device of claim 2, wherein: a first atomization bin (7) and a first packing layer (8) are arranged in the pickling spray tower (26), a pickling spray tower air inlet (3) and a pickling spray tower air outlet (29) are arranged on the pickling spray tower (26), the pickling spray tower air inlet (3) is communicated with a wire mesh defoaming device air outlet (61), and the pickling spray tower air outlet (29) is communicated with the sodium hypochlorite advanced oxidation tower (27); the waste gas treatment device of the landfill leachate sewage station comprises a first spray circulation system, wherein the first spray circulation system is communicated with the acid washing spray tower (26); the first spray circulation system comprises a first spray header (5), a first circulation spray pipe (6), a first circulation water pump (10) and a first circulation water tank (11), the first circulation water tank (11) is communicated with the first circulation water pump (10), the first circulation water pump (10) is communicated with the first circulation spray pipe (6), and the first spray header (5) is installed on the first circulation spray pipe (6); and a first inspection window (9) is arranged on the first atomization bin (7).
4. The high-efficiency integrated landfill leachate sewage station exhaust treatment device of claim 3, wherein: a second atomization bin (30) and a second packing layer (31) are arranged in the sodium hypochlorite advanced oxidation tower (27), an advanced oxidation tower air inlet (32) and an advanced oxidation tower air outlet (33) are arranged on the sodium hypochlorite advanced oxidation tower (27), the advanced oxidation tower air inlet (32) is communicated with the pickling spray tower air outlet (29), and the advanced oxidation tower air outlet (33) is communicated with the high-efficiency integrated demister (4); the waste gas treatment device of the landfill leachate sewage station comprises a second spraying circulating system, wherein the second spraying circulating system is communicated with the sodium hypochlorite advanced oxidation tower (27); the second spray circulation system comprises a second spray header (36), a second circulation spray pipe (37), a second circulation water pump (38) and a second circulation water tank (62), the second circulation water tank (62) is communicated with the second circulation water pump (38), the second circulation water pump (38) is communicated with the second circulation spray pipe (37), and the second spray header (36) is installed on the second circulation spray pipe (37); and a second inspection window (39) is arranged on the second atomization bin (30).
5. The high-efficiency integrated landfill leachate sewage station exhaust treatment device of claim 1, wherein: the cooling device comprises a cooling water inlet pipe (46), a cooling water outlet pipe (47), a cooling water circulating water pump (48) and a cooling water tank (49), the cooling defogging layer (57) is provided with a water inlet and a water outlet, one end of the cooling water inlet pipe (46) is communicated with the water inlet, the other end of the cooling water inlet pipe (46) is communicated with the cooling water circulating water pump (48), and the cooling water circulating water pump (48) is communicated with the cooling water tank (49); one end of the cooling water outlet pipe (47) is communicated with the water outlet, and the other end of the cooling water outlet pipe (47) is communicated with the cooling water tank (49).
6. The high-efficiency integrated landfill leachate sewage station exhaust treatment device of claim 1, wherein: the backwashing device comprises a backwashing water tank (50), a backwashing water pump (51), a backwashing liquid inlet pipe (52) and a high-pressure spray head (53), wherein the high-pressure spray head (53) is installed at one end of the backwashing liquid inlet pipe (52), the other end of the backwashing liquid inlet pipe (52) is communicated with the backwashing water pump (51), and the backwashing water pump (51) is communicated with the backwashing water tank (50).
7. The high-efficiency integrated landfill leachate sewage station exhaust treatment device of claim 1, wherein: the high-efficiency integrated demister (4) comprises a liquid discharge pipeline (54) and a liquid discharge valve (55), the liquid discharge valve (55) is installed on the liquid discharge pipeline (54), and the liquid discharge pipeline (54) is installed at the bottommost part of the high-efficiency integrated demister box body (56).
8. The high-efficiency integrated landfill leachate sewage station exhaust treatment device of claim 1, wherein: the UV photolysis processing device is characterized in that a preposed filter cotton, a high-energy UV lamp tube assembly, activated carbon filter cotton (17), a control switch and an electric box are arranged in the UV photolysis processing device (28), the control switch is connected with the high-energy UV lamp tube assembly, the electric box is responsible for supplying power to the control switch and the high-energy UV lamp tube assembly, a photolysis processing device air inlet (40) and a photolysis processing device air outlet (41) are arranged on the UV photolysis processing device (28), the photolysis processing device air inlet (40) is communicated with the clean gas air outlet (45), and the photolysis processing device air outlet (41) is communicated with the centrifugal fan (23); the front filter cotton comprises water absorption filter cotton (15) and primary filter cotton (16); the high-energy UV lamp tube assembly comprises a high-energy UV lamp tube (18) and a rectifier, wherein the high-energy UV lamp tube (18) is connected with the rectifier; the high-energy UV lamp tubes (18) are controlled in groups, and the control switch can adjust the opening number of the high-energy UV lamp tubes (18) according to the change of the waste gas quantity or the pollutant concentration.
9. The high-efficiency integrated landfill leachate sewage station exhaust treatment device of claim 8, wherein: the waste gas treatment device for the landfill leachate sewage station comprises a fan soft connecting piece (22), wherein a gas inlet and a gas outlet are formed in the centrifugal fan (23), and the fan soft connecting piece (22) is respectively installed at the gas inlet and the gas outlet of the centrifugal fan (23); the waste gas treatment device for the landfill leachate sewage station comprises a chimney rain cap (20), wherein one end of a discharge chimney (21) is communicated with a centrifugal fan through a fan soft connector (22), and the chimney rain cap (20) is installed at the other end of the discharge chimney (21); the high-energy UV lamp tube (18) adopts a 185nm +254nm dual-band quartz lamp tube; this landfill leachate sewage station exhaust treatment device includes that the silk screen removes foam device support frame (2), UV photodissociation processing apparatus support frame (19), fan support frame (24), the silk screen removes and installs under foam device (25) the silk screen removes foam device support frame (2), install UV photodissociation processing apparatus (28) below UV photodissociation processing apparatus support frame (19), install centrifugal fan (23) below fan support frame (24).
10. The high-efficiency integrated landfill leachate sewage station exhaust treatment device of claim 9, wherein: the waste leachate sewage station waste gas treatment device comprises a waste gas collecting cover plate and a pipeline.
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