CN212262821U - Slaughterhouse stink processing system - Google Patents
Slaughterhouse stink processing system Download PDFInfo
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- CN212262821U CN212262821U CN202020867492.5U CN202020867492U CN212262821U CN 212262821 U CN212262821 U CN 212262821U CN 202020867492 U CN202020867492 U CN 202020867492U CN 212262821 U CN212262821 U CN 212262821U
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Abstract
The utility model relates to a slaughterhouse odor treatment system, belonging to the technical field of environmental protection treatment; comprises an atomized alkali liquor absorption tower, a dehydrator, a plasma device, a fan, an exhaust funnel and a control system, which are sequentially communicated; the atomized alkali liquor absorption tower comprises a packing layer and a spraying layer, wherein a spiral nozzle is arranged on the spraying layer, the spiral nozzle is circular, the spiral nozzle comprises a main spraying pipe and branch spraying pipes symmetrically arranged on two sides of the main spraying pipe, one end of the main spraying pipe is provided with a liquid inlet, one end of each branch spraying pipe is communicated with the main spraying pipe, spraying ports are uniformly arranged on the main spraying pipe and the branch spraying pipes, and a gas outlet is arranged at the top end of the atomized alkali liquor absorption tower; the purification efficiency is high, no secondary pollution is generated, the impact load is resisted, the occupied area is small, the operation cost is low, the equipment power is changed along with the pollutant concentration, and the equipment maintenance is convenient.
Description
Technical Field
The utility model relates to a slaughterhouse stench processing system belongs to environmental protection and administers technical field.
Background
The malodorous pollutant components generated in slaughtering places mainly comprise methyl mercaptan and methyl sulfide gas generated by decomposing organic components in slaughtering wastewater by microorganisms, and malodorous gas such as hydrogen sulfide, ammonia gas and the like generated by anaerobic bacteria in the process of treating the slaughtering wastewater. The existing slaughterhouse waste gas treatment system mainly comprises a reagent oxidation method and a biological method.
Reagent oxidation method: oxidizing pollutant molecules (methyl mercaptan and methyl sulfide) into tasteless and harmless substances by using oxidizing agents such as hypochlorous acid, hydrogen peroxide, sulfuric acid and the like, and absorbing hydrogen sulfide and ammonia gas by using alkali liquor to achieve the purpose of eliminating malodorous gases. The method has the disadvantages that a large amount of chemical reagent wastewater is generated, and a pollution source is transferred from a gas phase to a liquid phase, so that the wastewater treatment difficulty is increased. Easy to produce secondary pollution, not saving energy, high cost, not solving the essential problem, pollution transfer and the like.
The biological method comprises the following steps: the special strains are selected, so that pollutant components can be ingested and converted into carbon dioxide, nitrate and other substances without malodor through the physiological metabolism of the flora, and the purpose of eliminating the malodor pollutants is achieved. The disadvantages of this method are: the biological method has poor capability of resisting the change of the concentration of pollutants, and can inhibit the treatment efficiency of flora and even cause the death of the flora when the environment of the flora is mutated. And because the physiological reaction of the flora is a long process, the treatment efficiency of the biological method is low, and the occupied area of the biological method equipment is large. Maintenance is difficult. Has the defects of low efficiency, large occupied area, difficult maintenance and difficult control of reaction environment.
Therefore, it is necessary to provide a slaughterhouse malodor treatment system which has high purification efficiency, no secondary pollution, impact load resistance, small floor area, low operation cost, equipment power variation with pollutant concentration and convenient equipment maintenance.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the slaughterhouse odor treatment system overcomes the defects of the prior art, is high in purification efficiency, free of secondary pollution, impact-resistant in load, small in occupied area, low in operation cost, capable of changing the power of equipment along with the concentration of pollutants and convenient to maintain.
The utility model discloses a slaughterhouse malodor treatment system, which comprises an atomized alkali liquor absorption tower, a dehydrator, a plasma device, a fan, an exhaust funnel and a control system, wherein the atomized alkali liquor absorption tower, the dehydrator, the plasma device, the fan and the exhaust funnel are sequentially communicated; the atomizing alkali liquor absorption tower comprises a packing layer and a spraying layer, wherein the spraying layer is provided with a spiral nozzle, the spiral nozzle is circular, the spiral nozzle comprises a spraying main pipe and a spraying branch pipe, the spraying branch pipe is symmetrically arranged on two sides of the main pipe, one end of the spraying main pipe is provided with an inlet, one end of the spraying branch pipe is communicated with the spraying main pipe, the spraying main pipe and the spraying branch pipe are uniformly provided with a spraying port, and the top end of the atomizing alkali liquor absorption tower is provided with a gas outlet.
The collected peculiar smell gas passes through an atomized alkali liquor absorption tower, the waste gas flows from bottom to top, and the sprayed absorption liquid is absorbed and dissolved with chemical reactions of hydrogen sulfide, ammonia gas and the like in the waste gas on the surface of the filler layer from top to bottom; thereby achieving the purpose of primary purification. After alkali washing, the waste gas enters a plasma device after being dewatered by a dehydrator, the plasma in the plasma device reacts with the odor components in the waste gas, the odor molecules are decomposed to generate odorless substances through atomic-level collision bombardment, finally the odor components are treated, and the tail gas reaching the standard is driven by a fan to be discharged through an exhaust funnel. The purification efficiency is high, no secondary pollution is generated, the impact load is resisted, the occupied area is small, the operation cost is low, the equipment power is changed along with the pollutant concentration, and the equipment maintenance is convenient.
Preferably, the atomized alkali liquor absorption tower sequentially comprises a first packing layer, a first spraying layer, a second packing layer, a second spraying layer, a third packing layer, a third spraying layer, a fourth packing layer and a tower bottom liquid phase layer from top to bottom, the first packing layer is filled with a PP wire mesh dewatering packing, and the second packing layer, the third packing layer and the fourth packing layer are filled with multi-surface hollow spheres; the first layer, the second sprays the layer, the third sprays and is provided with spiral nozzle on the layer, and spiral nozzle's inlet is through spraying pump intercommunication tower bottom liquid phase layer, and tower bottom liquid phase layer is provided with air inlet, water inlet and dosing mouth, and atomizing alkali lye absorption tower bottom is provided with the drain-off mouth.
Compared with the conventional filler, the polyhedral hollow sphere filler has the advantages of large specific surface area, high porosity, small resistance, good wettability and the like, can provide a sufficient interface for the gas-liquid mass transfer process, and improves the mass transfer efficiency. The spray layer in the atomized alkali liquor absorption tower is provided with the spiral nozzle, so that the atomization effect is good, and the liquid phase is uniformly dispersed. The liquid phase atomized by the spiral nozzle is uniformly sprayed on the polyhedral hollow sphere filler, flows through gaps of the filler from top to bottom, and wets the surface of the filler to form a flowing liquid film. Waste gas passes through the packing layer from bottom to top under the action of the fan and contacts with the liquid film in a reverse direction to generate a mass transfer process, and pollutants in the waste gas are absorbed, wrapped and entrained into the liquid phase, so that the aim of purifying the waste gas is fulfilled. The purified waste gas is discharged from a gas outlet at the top of the tower, and the liquid phase absorbing the pollutants is collected at the bottom of the tower and recycled by a spray pump to reach a certain concentration and then is discharged in a replacement way.
Specifically, the polyhedral hollow sphere filler can be a hollow sphere filler with 5-15 surfaces.
Preferably, a liquid level sensor is arranged on the tower bottom liquid phase layer, the water inlet is communicated with factory tap water through a first electromagnetic valve, the drain port is communicated with a factory sewage pipe through a second electromagnetic valve, a pressure sensor and a temperature sensor are installed on a communication pipeline of the dehydrator and the plasma equipment, and the liquid level sensor, the first electromagnetic valve, the second electromagnetic valve, the pressure sensor, the temperature sensor, the spray pump, the plasma equipment and the fan are connected with the control system.
The control system controls the first electromagnetic valve to automatically replenish water according to the level of the liquid level sensor, the time relay can control the second electromagnetic valve to automatically drain water, and the wind pressure of the pressure sensor is smaller than a set value or the temperature of the temperature sensor is larger than the set value to control the plasma equipment to automatically shut down. Utilize control system automatic control slaughterhouse stench processing system operation, equipment power changes along with pollutant concentration, and the running cost is low. Specifically, the control system is a PLC control system.
Preferably, the medicine adding port is inclined downwards by 40-50 degrees, so that the medicine and the base liquid phase layer are accelerated to be uniformly mixed.
Preferably, the top end of the exhaust funnel is provided with a lightning rod, so that the safety is improved.
Preferably, the plasma equipment is communicated with a flushing water tank through a flushing pump, the flushing water tank is communicated with factory tap water, and the flushing pump is connected with a control system.
Here, the plasma equipment needs to output plasma outwards through the quartz tube to achieve the purpose of waste gas treatment, and the impurities in the waste gas can cover the surface of the quartz tube after long-time operation, so that the effect of the plasma equipment on the waste gas is hindered, and local overhigh temperature can be caused to damage the generating element of the plasma equipment. Therefore, a flushing water tank is arranged, and the surface of the plasma element in the plasma equipment is periodically flushed by clean water.
Preferably, a cutoff steam trap is connected between the plasma equipment and the fan, and the cutoff steam trap is communicated with a sewage pipe of a plant area.
The arrangement of the cutoff steam trap and the dehydrator can improve the treatment applicability of the whole system to high-humidity waste gas. The cutoff steam trap can play a role in preventing condensed water in the pipeline from flowing into the fan to influence the operation of the fan in the normal operation stage, and can play a role in collecting flushing wastewater in the flushing stage. The dehydrator can effectively block water vapor and impurities carried in the waste gas, and the treatment efficiency of the plasma equipment is improved.
Preferably, the exhaust funnel is provided with a sampling point, so that the tail gas reaching the standard can be conveniently sampled and detected.
Preferably, the first packing layer, the second packing layer, the third packing layer and the fourth packing layer are respectively communicated with a packing unloading hole, the first spraying layer, the second spraying layer and the third spraying layer are respectively communicated with a manhole, and a viewing mirror is arranged on the manhole; the internal condition of the atomized alkali liquor absorption tower can be observed at any time, and the maintenance is convenient.
Compared with the prior art, the utility model discloses following beneficial effect has:
slaughterhouse foul smell processing system, purification efficiency is high, does not produce secondary pollution, and shock-resistant load, area is little, and the running cost is low, and equipment power changes along with pollutant concentration, and equipment maintenance is convenient.
Drawings
FIG. 1 is a schematic structural diagram of a slaughterhouse malodor treatment system according to the present invention;
FIG. 2 is a schematic structural view of the atomized alkali liquor absorption tower of the present invention;
fig. 3 is a schematic plan view of the spiral nozzle of the present invention.
In the figure: 1. an atomized alkali liquor absorption tower; 2. a dehydrator; 3. a plasma device; 4. a fan; 5. an exhaust funnel; 6. a control system; 7. a first filler layer; 8. a first spray layer; 9. a second packing layer; 10. a second spray layer; 11. a third packing layer; 12. a third spray layer; 13. a fourth packing layer; 14. a liquid phase layer at the bottom of the tower; 15. spraying a main pipe; 16. spraying branch pipes; 17. a liquid inlet; 18. a spray port; 19. an air outlet; 20 an air inlet; 21. a water inlet; 22. a medicine adding port; 23. a discharge port; 24. a liquid level sensor; 25. a first solenoid valve; 26. a second solenoid valve; 27. a pressure sensor; 28. a temperature sensor; 29 a lightning rod; 30. a flush pump; 31. a flush tank; 32. a cutoff trap; 33. unloading the filling hole; 34 a manhole; 35. a sight glass; 36. a spray pump; 37. sampling points.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
example 1
As shown in fig. 1-3, the slaughterhouse malodor treatment system of the present invention comprises an atomized alkali liquor absorption tower 1, a dehydrator 2, a plasma device 3, a fan 4, an exhaust funnel 5, and a control system 6, which are sequentially connected; including the packing layer and spray the layer in the atomizing alkali lye absorption tower 1, it is provided with the spiral nozzle on the layer to spray, the spiral nozzle is circular, the spiral nozzle is including spraying 15 and spraying the branch pipe 16 that is responsible for 15 bilateral symmetry settings, sprays 15 one ends of being responsible for and is provided with inlet 17, and 16 one ends of branch pipe intercommunication that spray sprays is responsible for 15, sprays to be responsible for 15 and spray and evenly arranged on the branch pipe 16 and spray mouth 18, and 1 tops of atomizing alkali lye absorption tower are provided with gas outlet 19.
The collected peculiar smell gas passes through the atomized alkali liquor absorption tower 1, the waste gas from bottom to top, and the spray absorption liquid from top to bottom passes through the spray opening 18 to be absorbed and dissolved on the surface of the filler of the packing layer through chemical reactions of hydrogen sulfide, ammonia gas and the like in the waste gas; thereby achieving the purpose of primary purification. After alkaline washing, the waste gas enters a plasma device 3 after being dewatered by a dehydrator 2, peculiar smell components are treated, and tail gas reaching the standard is driven by a fan 4 to be discharged through an exhaust funnel 5. The purification efficiency is high, no secondary pollution is generated, the impact load is resisted, the occupied area is small, the operation cost is low, the equipment power is changed along with the pollutant concentration, and the equipment maintenance is convenient.
The atomized alkali liquor absorption tower 1 sequentially comprises a first packing layer 7, a first spraying layer 8, a second packing layer 9, a second spraying layer 10, a third packing layer 11, a third spraying layer 12, a fourth packing layer 13 and a tower bottom liquid phase layer 14 from top to bottom, the first packing layer 7 is filled with a PP wire mesh dewatering packing, and the second packing layer 9, the third packing layer 11 and the fourth packing layer 13 are filled with multi-surface hollow spheres; the first spraying layer 8, the second spraying layer 10 and the third spraying layer 12 are provided with spiral nozzles, liquid inlets 17 of the spiral nozzles are communicated with the tower bottom liquid phase layer 14 through a spraying pump 36, the tower bottom liquid phase layer 14 is provided with air inlets 20, water inlets 21 and a chemical feeding port 22, and the bottom of the atomized alkali liquor absorption tower 1 is provided with a drain port 23.
Compared with the conventional filler, the polyhedral hollow sphere filler has the advantages of large specific surface area, high porosity, small resistance, good wettability and the like, can provide a sufficient interface for the gas-liquid mass transfer process, and improves the mass transfer efficiency. The spray layer in the atomized alkali liquor absorption tower 1 is provided with a spiral nozzle, so that the atomization effect is good, and the liquid phase is uniformly dispersed. The liquid phase atomized by the spiral nozzle is uniformly sprayed on the polyhedral hollow sphere filler, flows through gaps of the filler from top to bottom, and wets the surface of the filler to form a flowing liquid film. Waste gas passes through the packing layer from bottom to top under the action of the fan 4 and contacts with the liquid film in a reverse direction to generate a mass transfer process, and pollutants in the waste gas are absorbed, wrapped and entrained into the liquid phase, so that the aim of purifying the waste gas is fulfilled. The purified waste gas is discharged from a gas outlet 19 at the top of the tower, and the liquid phase absorbing the pollutants is collected at the bottom of the tower and recycled by a spray pump 36 to reach a certain concentration and then is discharged in a replacement way.
Specifically, the polyhedral hollow sphere filler can be a hollow sphere filler with 5-15 surfaces.
Wherein, the tower bottom liquid phase layer 14 is provided with a liquid level sensor 24, the water inlet 21 is communicated with factory tap water through a first electromagnetic valve 25, the drain outlet 23 is communicated with a factory sewage pipe through a second electromagnetic valve 26, a communicating pipeline of the dehydrator 2 and the plasma equipment 3 is provided with a pressure sensor 27 and a temperature sensor 28, and the liquid level sensor 24, the first electromagnetic valve 25, the second electromagnetic valve 26, the pressure sensor 27, the temperature sensor 28, the spray pump 36, the plasma equipment 3 and the fan 4 are connected with the control system 6.
The control system 6 controls the first electromagnetic valve 25 to automatically replenish water according to the height of the liquid level sensor 24, can control the second electromagnetic valve 26 to automatically drain water through a time relay, and controls the plasma equipment 3 to automatically shut down when the wind pressure of the pressure sensor 27 is smaller than a set value or the temperature of the temperature sensor 28 is larger than the set value. Utilize 6 automatic control of control system slaughterhouse stench processing system operation, equipment power changes along with pollutant concentration, and the running cost is low. Specifically, the control system 6 is a PLC control system.
Wherein, the medicine adding opening 22 is inclined downwards by 40 degrees to 50 degrees, which is convenient for accelerating the even mixing of the medicine and the bottom liquid phase layer.
Wherein, the top of the exhaust funnel 5 is provided with a lightning rod 29, so that the safety is improved.
Wherein, the plasma equipment 3 is communicated with a flushing water tank 31 through a flushing pump 30, the flushing water tank 31 is communicated with factory tap water, and the flushing pump 30 is connected with the control system 6.
Here, the plasma device 3 needs to output plasma outwards through the quartz tube to achieve the purpose of waste gas treatment, and the impurities in the waste gas can cover the surface of the quartz tube after long-time operation, so that the effect of the plasma device 3 on the waste gas is hindered, and local overhigh temperature can be caused to damage the generating elements of the plasma device 3. A rinsing water tank 31 is provided to periodically rinse the surface of the plasma element in the plasma equipment 3 with clean water.
Wherein, a cut-off steam trap 32 is connected between the plasma equipment 3 and the fan 4, and the cut-off steam trap 32 is communicated with a factory sewage pipe.
The arrangement of the cutoff steam trap 32 and the dehydrator 2 can improve the treatment applicability of the whole system to the high-humidity exhaust gas. The cutoff steam trap 32 can prevent condensed water in the pipeline from flowing into the fan 4 to affect the operation of the fan 4 in the normal operation stage, and can play a role in collecting washing wastewater in the washing stage. The dehydrator 2 can effectively block water vapor and impurities carried in the waste gas, and the treatment efficiency of the plasma equipment 3 is increased.
Wherein, be provided with sampling point 37 on the aiutage 5, be convenient for sample inspection tail gas up to standard.
The first packing layer 7, the second packing layer 9, the third packing layer 11 and the fourth packing layer 13 are respectively communicated with a packing unloading hole 33, the first spraying layer 8, the second spraying layer 10 and the third spraying layer 12 are respectively communicated with a manhole 34, and a viewing mirror 35 is arranged on the manhole 34; the internal condition of the atomized alkali liquor absorption tower 1 can be observed at any time, and the maintenance is convenient.
Slaughterhouse foul smell processing system, the working process as follows:
the collected peculiar smell gas passes through the atomized alkali liquor absorption tower 1, the waste gas from bottom to top, and the spray absorption liquid from top to bottom passes through the spray opening 18 to be absorbed and dissolved on the surface of the filler of the packing layer through chemical reactions of hydrogen sulfide, ammonia gas and the like in the waste gas; thereby achieving the purpose of primary purification. After alkaline washing, the waste gas enters a plasma device 3 after being dewatered by a dehydrator 2, peculiar smell components are treated, and tail gas reaching the standard is driven by a fan 4 to be discharged through an exhaust funnel 5.
Claims (9)
1. A slaughterhouse malodor processing system is characterized in that: comprises an atomized alkali liquor absorption tower (1), a dehydrator (2), a plasma device (3), a fan (4), an exhaust funnel (5) which are communicated in sequence, and a control system (6); including the packing layer in atomizing alkali lye absorption tower (1) and spray the layer, it is provided with the spiral nozzle on the layer to spray, the spiral nozzle is circular, the spiral nozzle is including spraying main pipe (15) and spraying branch pipe (16) that spray main pipe (15) bilateral symmetry set up, and it is provided with inlet (17) to spray main pipe (15) one end, and spray branch pipe (16) one end intercommunication and spray main pipe (15), spray main pipe (15) and spray branch pipe (16) and go up evenly arranged and spray mouth (18), and atomizing alkali lye absorption tower (1) top is provided with gas outlet (19).
2. The slaughterhouse malodor treatment system according to claim 1, wherein: the atomized alkali liquor absorption tower (1) sequentially comprises a first packing layer (7), a first spraying layer (8), a second packing layer (9), a second spraying layer (10), a third packing layer (11), a third spraying layer (12), a fourth packing layer (13) and a tower bottom liquid phase layer (14) from top to bottom, and the second packing layer (9), the third packing layer (11) and the fourth packing layer (13) are filled with multi-surface hollow spheres; the first spraying layer (8), the second spraying layer (10) and the third spraying layer (12) are provided with spiral nozzles, liquid inlets (17) of the spiral nozzles are communicated with the tower bottom liquid phase layer (14) through spraying pumps (36), the tower bottom liquid phase layer (14) is provided with air inlets (20), water inlets (21) and a chemical feeding port (22), and the bottom of the atomized alkali liquor absorption tower (1) is provided with a clean discharging port (23).
3. The slaughterhouse malodor treatment system according to claim 2, wherein: the tower bottom liquid phase layer (14) is provided with a liquid level sensor (24), a water inlet (21) is communicated with plant tap water through a first electromagnetic valve (25), a drain port (23) is communicated with a plant sewage pipe through a second electromagnetic valve (26), a communicating pipeline of the dehydrator (2) and the plasma equipment (3) is provided with a pressure sensor (27) and a temperature sensor (28), and the liquid level sensor (24), the first electromagnetic valve (25), the second electromagnetic valve (26), the pressure sensor (27), the temperature sensor (28), a spray pump (36), the plasma equipment (3) and a fan (4) are connected with a control system (6).
4. The slaughterhouse malodor treatment system according to claim 2, wherein: the medicine adding opening (22) is inclined downwards by 40-50 degrees.
5. Slaughterhouse malodor treatment system according to any one of claims 1-4, wherein a lightning conductor (29) is arranged at the top end of the exhaust stack (5).
6. Slaughterhouse malodor treatment system according to any one of claims 1-4, wherein the plasma equipment (3) is connected to a flushing water tank (31) via a flushing pump (30), the flushing water tank (31) being connected to the factory tap water, the flushing pump (30) being connected to the control system (6).
7. The slaughterhouse malodor treatment system according to any one of claims 1-4, wherein: a cut-off steam trap (32) is connected between the plasma equipment (3) and the fan (4), and the cut-off steam trap (32) is communicated with a sewage pipe of a plant area.
8. The slaughterhouse malodor treatment system according to any one of claims 1-4, wherein: the exhaust funnel (5) is provided with a sampling point (37).
9. The slaughterhouse malodor treatment system according to any one of claims 2-4, wherein: the first packing layer (7), the second packing layer (9), the third packing layer (11) and the fourth packing layer (13) are respectively communicated with a packing unloading hole (33), the first spraying layer (8), the second spraying layer (10) and the third spraying layer (12) are respectively communicated with a manhole (34), and a viewing mirror (35) is arranged on the manhole (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020867492.5U CN212262821U (en) | 2020-05-20 | 2020-05-20 | Slaughterhouse stink processing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020867492.5U CN212262821U (en) | 2020-05-20 | 2020-05-20 | Slaughterhouse stink processing system |
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| CN212262821U true CN212262821U (en) | 2021-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618292A (en) * | 2022-04-12 | 2022-06-14 | 同济大学 | Treatment device for removing sulfur-containing stink and greenhouse gas in enhanced mode and operation mode |
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2020
- 2020-05-20 CN CN202020867492.5U patent/CN212262821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618292A (en) * | 2022-04-12 | 2022-06-14 | 同济大学 | Treatment device for removing sulfur-containing stink and greenhouse gas in enhanced mode and operation mode |
| CN114618292B (en) * | 2022-04-12 | 2023-01-20 | 同济大学 | Treatment device for removing sulfur-containing stink and greenhouse gas in enhanced mode and operation mode |
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