CN216604630U - Quenching deacidification equipment for hazardous waste incineration tail gas treatment - Google Patents
Quenching deacidification equipment for hazardous waste incineration tail gas treatment Download PDFInfo
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- CN216604630U CN216604630U CN202123168239.4U CN202123168239U CN216604630U CN 216604630 U CN216604630 U CN 216604630U CN 202123168239 U CN202123168239 U CN 202123168239U CN 216604630 U CN216604630 U CN 216604630U
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Abstract
The utility model discloses a quenching deacidification device for hazardous waste incineration tail gas treatment, which comprises a quenching deacidification tower and a dry reactor, wherein the quenching deacidification tower comprises a quenching tower body, a plurality of lime slurry spray guns are uniformly distributed on the upper part of the quenching tower body, an air inlet flow distribution fence is arranged on the upper part of the quenching tower body, an ash falling port is arranged at the lower end of the quenching tower body, a knife gate valve is arranged at the ash falling port, a venturi tube is arranged at the lower part of the dry reactor, the lower part of the quenching tower body is communicated with the venturi tube through a bent tube, a baking soda nozzle and an active carbon nozzle are arranged at the venturi tube, and a flue gas outlet pipe is arranged at the upper part of the dry reactor. The utility model can perform deacidification and cooling treatment on the flue gas.
Description
Technical Field
The utility model relates to the technical field of polluted tail gas treatment equipment, in particular to quenching deacidification equipment for treating hazardous waste incineration tail gas.
Background
In a medical system and some chemical plants, a large amount of harmful garbage is generated everyday, if the garbage is not treated, the garbage is directly discharged, serious environmental pollution is caused, even for medical waste, some germs are possibly diffused to cause serious harm, and therefore high-temperature incineration needs to be carried out on the garbage, but high-temperature gas easily causes damage to equipment, a large amount of acid substances exist in incineration tail gas, the direct discharge can cause acid rain harm, and the tail gas needs to be subjected to deacidification treatment to meet the discharge requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a quenching deacidification device for treating the incineration tail gas of the hazardous wastes.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a rapid cooling deacidification equipment that hazardous waste burns tail gas treatment usefulness, remove sour tower and dry-type reactor including the rapid cooling, the rapid cooling deacidification tower includes the quench tower body, the upper portion equipartition of quench tower body has a plurality of lime slurry spray guns, the upper portion of quench tower body is equipped with the reposition of redundant personnel fence that admits air, the lower extreme of quench tower body is the ash falling port, the ash falling port department is equipped with the knife gate valve, the lower part of dry-type reactor is venturi, the lower part of quench tower body passes through the return bend intercommunication with venturi, venturi department is equipped with baking soda spout and active carbon spout, the upper portion of dry-type reactor is equipped with the flue gas contact tube.
The number of the lime slurry spray guns is four, and the angle between two lime slurry spray guns is 90 degrees.
The air inlet flow dividing fence comprises a first air inlet flow dividing fence and a second air inlet flow dividing fence, the second air inlet flow dividing fence is located above the first air inlet flow dividing fence, the first air inlet flow dividing fence and the second air inlet flow dividing fence are formed by a plurality of iron rods which are arranged in parallel, and the iron rods of the first air inlet flow dividing fence and the iron rods of the second air inlet flow dividing fence are arranged in a 90-degree crossed mode.
A spray gun washing tank is arranged in the quench tower body and is arranged below the lime slurry spray gun.
The knife gate valve comprises a first knife gate valve and a second knife gate valve which are arranged up and down.
The joint of the elbow and the Venturi tank is provided with a dry reactor nonmetal expansion joint.
The flue gas eduction tube comprises a straight-through tube, an upper bent tube arranged above the straight-through tube and a lower bent tube arranged below the straight-through tube, wherein the upper bent tube is communicated with the upper part of the dry-type reactor.
The utility model has the beneficial effects that:
1, leading incineration tail gas into a quench tower body through a flue gas inlet elbow, firstly shunting the entering flue gas by an air inlet shunting fence to fully disperse the flue gas, spraying lime by a lime slurry spray gun, fully mixing the lime slurry with the flue gas after the lime slurry is dispersed in a vaporific manner, desulfurizing acid substances in the flue gas, and simultaneously performing a certain cooling effect on the flue gas to reduce the damage of the flue gas to a dry reactor;
2. and the carbon powder and the baking soda are blown into the dry reactor through a baking soda nozzle and an active carbon nozzle, are fully mixed with the tail gas, and are subjected to acid removal again, so that acidic substances in the tail gas are removed more thoroughly.
Drawings
FIG. 1 is a schematic diagram of a quench acid removal tower and a dry reactor;
FIG. 2 is a top view of a quench acid tower and a dry reactor;
FIG. 3 is a schematic structural view of an intake manifold;
FIG. 4 is a flow chart of a hazardous waste incineration disposal system;
FIG. 5 is a schematic structural view of a heater;
FIG. 6 is a top view of a lower tube and heat exchange tube;
in the figure: a garbage can 1, a feed hopper 2, a flashboard 3, a push rod 4, a rotary kiln 5, a secondary combustion chamber 6, a rapid cooling deacidification tower 7, a rapid cooling tower body 71, a lime slurry spray gun 72, a spray gun flushing pool 73, a steel bracket 74, a second air inlet flow dividing fence 75, a flue gas inlet elbow 76, a flue gas outlet pipe 77, an upper elbow 771, a straight pipe 772, a lower elbow 773, a first knife gate valve 78, a second knife gate valve 79, an elbow 710, a dry reactor nonmetal expansion joint 711, a Venturi tube 712, an ash cleaning port 713, a first air inlet flow dividing fence 714, a boiler 8, a baking soda can 9, a slag dragging machine 10, a urea solution tank 11, a urea stirring tank 12, a lime tank 13, a lime stirring tank 14, a lime solution tank 15, a flue gas tower 16, a heater 17, a washing tower 18, a waste liquid tank 19, an alkali liquid tank 20, a precooler 21, a cloth bag dust remover 22, a dry reactor 23, a diesel oil tank 24, an active carbon tank 25, a plate feeding machine 26, a quenching tower 24, a quenching tower heater 17, a steel bracket, a blast furnace, the main combustion fan 27, the combustion fan 28, the heat exchanger 29, the bottom pipe 291, the heat exchange pipe 292 and the top pipe 293.
Detailed Description
The utility model is further described with reference to the accompanying drawings and the detailed description below:
1-6, a hazardous waste incineration treatment system comprises a feed incineration system and a tail gas treatment system;
the feeding incineration system comprises a garbage feeding device, a rotary kiln 5 and a secondary combustion chamber 6 which are connected in sequence;
the garbage feeding device comprises a garbage can 1 and a feed hopper 2, a plate feeding machine 26 is arranged at an outlet at the lower part of the garbage can 1, the other end of the plate feeding machine 26, which is far away from the garbage can 1, extends to the upper part of the feed hopper 2, two gate plates 3 are arranged at the lower part of the feed hopper 2, a push rod 4 is arranged below the feed hopper 2, one end of the push rod 4 extends to a rotary kiln 5, a diesel tank 24 is also communicated with the left side of the rotary kiln 5, the garbage is required to pass through the following steps before entering the rotary kiln, after being poured into the garbage can 1, the garbage is conveyed to the feed hopper 2 through the plate feeding machine 26, after the first gate plate 3 is opened, part of the garbage falls into the second gate plate 3, the first gate plate 3 is closed, the second gate plate 3 is opened, the garbage falls into the push rod 4, the second gate plate 3 is closed, the push rod 4 conveys the garbage into the rotary kiln 5, the steps are repeated, and the control of the two gate plates 3 can avoid excessive garbage falling into the garbage push rod 4, a certain burden is imposed on the push rod 4;
the rotary kiln 5 is also connected with a main combustion fan 27 and a combustion fan 28 for blowing air into the rotary kiln 5 so that wastes can be fully combusted;
a slag conveyor 10 is arranged below the secondary combustion chamber 6, the burned solid residues fall into the secondary combustion chamber 6, the solid residues are led out through the slag conveyor 10 and then are subjected to subsequent treatment, waste gas enters the secondary combustion chamber to be burned again, and tail gas enters a tail gas treatment system;
the tail gas treatment system comprises a boiler 8, a rapid cooling acid removal tower 7, a dry reactor 23, a bag-type dust remover 22, a heater 17 and a flue gas tower 16 which are sequentially connected through a pipeline, denitration treatment equipment is communicated with the boiler 8 and comprises a urea solution tank 11 and a urea stirring tank 12 which are connected through pipelines, the liquid outlet end of the urea solution tank 11 is connected with the upper part of the boiler 8 through a pipeline, urea is introduced into the boiler 8, atomized and then falls down, and is mixed with tail gas to react, nitrogen-containing waste in the tail gas is removed, the nitrogen-containing waste is continuously introduced into the rapid cooling acid removal tower 7 in a gaseous state, and dust contained in the flue gas partially falls into the bottom of the boiler 8 to be periodically cleaned;
the upper end of the rapid cooling deacidification tower 7 is communicated with a first deacidification device, the first deacidification device comprises a lime stirring tank 14 and a lime solution tank 15 which are connected through a pipeline, lime in the lime stirring tank 14 is led in through a lime tank 13, the rapid cooling deacidification tower 7 comprises a rapid cooling tower body 71, a plurality of lime slurry spray guns 72 are uniformly distributed at the upper part of the rapid cooling tower body 71, the liquid outlet end of the lime solution tank 15 is connected with the lime slurry spray guns 72, the lime slurry spray guns 72 emulsify the lime slurry and fall down in a spray shape, an air inlet flow distribution fence is arranged at the upper part of the rapid cooling tower body 71 and distributes the smoke to fully mix the lime slurry and the smoke and desulfurize the acid substances in the smoke, the lower end of the rapid cooling tower body 71 is a dust falling port, partial smoke dust of tail gas can fall into the dust falling port, a knife gate valve is arranged at the dust falling port, the knife gate valve comprises a first knife gate valve 78 and a second knife gate valve 79 which are arranged up and down, the arrangement of the two knife gate valves can prevent the smoke dust from falling too much and is inconvenient for ash removal, the lower part of the dry reactor 23 is a Venturi tube 712, the lower part of the quenching tower body 71 is communicated with the Venturi tube 712 through a bent tube 710, a baking soda nozzle and an active carbon nozzle are arranged at the Venturi tube 712, the waste gas after primary deacidification is introduced into the dry reactor through the bent tube 710, the Venturi tube 712 is communicated with a second deacidification device, the second deacidification device comprises a baking soda tank 9 and an active carbon tank 25, the baking soda tank 9 and the active carbon tank 25 are communicated with the baking soda nozzle and the active carbon nozzle, the active carbon and the baking soda are blown into the dry reactor 23 through a fan and are mixed with the waste gas to remove heavy metal substances and acidic substances, so that secondary deacidification is carried out;
the quantity of lime thick liquid spray gun 72 is four, and the angle between two lime thick liquid spray guns 72 is 90, guarantees that the lime thick liquid that lime spray gun 72 jetted can fully cover quench tower body 71, makes tail gas and lime thick liquid can the intensive mixing.
The reposition of redundant personnel fence 714 admits air includes that the first reposition of redundant personnel fence 714 admits air and the second reposition of redundant personnel fence 75 admits air, the second reposition of redundant personnel fence 75 admits air is located the first top of admitting air reposition of redundant personnel fence 714, first reposition of redundant personnel fence 714 admits air and the second reposition of redundant personnel fence 75 admits air by a plurality of parallel arrangement's iron set and constitutes, the iron set of first reposition of redundant personnel fence 714 that admits air and the iron set of second reposition of redundant personnel fence 75 admit air are 90 cross arrangement, tail gas is earlier tentatively broken up behind first reposition of redundant personnel fence 714 admits air, again through the second reposition of redundant personnel fence 75 admits air and is broken up twice, make tail gas fully expand and scatter, mix with lime thick liquid.
Be equipped with spray gun flushing tank 73 in quench tower body 1, spray gun flushing tank 73 locates the below of lime thick liquid spray gun 72, uses the back for a long time, needs wash the spray gun, and leading-in clear water in the spray gun pipe during washing fills with the clear water in spray gun flushing tank 73, need dismantle the spray gun when necessary, washs in the spray gun flushing tank, makes its washing more thoroughly clean.
The dry reactor nonmetal expansion joint 711 is arranged at the joint of the elbow 710 and the venturi tank 712, so that the elbow 710 and the venturi tank 712 are more reliably connected and are not easy to corrode, and the service life of the elbow is longer.
The upper part of the dry reactor 23 is provided with a flue gas outlet pipe 77, the flue gas outlet pipe 77 comprises a straight-through pipe 772, an upper bent pipe 771 arranged above the straight-through pipe 772 and a lower bent pipe 773 arranged below the straight-through pipe 772, the upper bent pipe 771 is communicated with the upper part of the dry reactor 23, and the lower bent pipe 773 is communicated with the bag-type dust collector 22, so that the mixing time of the tail gas, the baking soda and the active carbon is prolonged, and the acidic substances in the tail gas can be fully reacted.
The tail gas after the secondary deacidification enters a bag-type dust remover 22, solid particles are removed after the tail gas is filtered by the bag-type dust remover 22, and the tail gas is led out to a heater, wherein the temperature of the tail gas is higher;
the lower end of the heater 17 is connected with a third acid removing device, the third acid removing device comprises a washing tower 18, a waste liquid tank 19 and an alkali liquid tank 20, the waste liquid tank 19 and the alkali liquid tank 20 are connected with the washing tower 18 through pipelines, the upper part of the washing tower 18 is connected with a heat exchanger 29, a precooler 21 is connected between the heater 17 and the washing tower 18, high-temperature gas is cooled after passing through the precooler 21, the temperature of the gas entering the washing tower 18 is not too high, so that the washing tower 18 is damaged, the heat exchanger 29 is arranged in the heater 17, and the gas outlet end of the third acid removing device is connected with the inlet end of the heat exchanger 29. The low-temperature tail gas washed by the washing tower 18 enters the heat exchanger 29, exchanges heat with the high-temperature tail gas outside the heat exchanger 29 to increase the temperature of the tail gas, the outlet end of the heat exchanger 29 is connected with the flue gas tower 16, the temperature of the discharged tail gas is higher, and the phenomenon of white smoke can not be formed in dissipation;
the heat exchanger 29 comprises annular bottom pipes 291 and top pipes 293, the bottom pipes 291 are communicated with the top pipes 293 through a plurality of heat exchange pipes 292, the bottom pipes 291 are communicated with a pipeline at the top of the washing tower 18, the top pipes 293 are communicated with the flue gas tower 16, low-temperature tail gas flows into the bottom pipes 291 and then is guided out to the top pipes 293 through the heat exchange pipes 292, and the low-temperature tail gas can be fully contacted with high-temperature tail gas due to the fact that the number of the heat exchange pipes 292 is large and the cross section is small, and the temperature of the low-temperature tail gas is increased.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a rapid cooling deacidification equipment that hazardous waste burns tail gas treatment usefulness which characterized in that: remove acid tower (7) and dry-type reactor (23) including the quenching, the quenching removes acid tower (7) and includes quench tower body (71), the upper portion equipartition of quench tower body (71) has a plurality of lime slurry spray guns (72), the upper portion of quench tower body (71) is equipped with the reposition of redundant personnel fence that admits air, the lower extreme of quench tower body (71) is the ash falling mouth, ash falling mouth department is equipped with knife gate valve, the lower part of dry-type reactor (23) is venturi tube (712), the lower part of quench tower body (71) and venturi tube (712) are through return bend (710) intercommunication, venturi tube (712) department is equipped with baking soda spout and active carbon spout, the upper portion of dry-type reactor (23) is equipped with flue gas eduction tube (77).
2. The quenching deacidification equipment for hazardous waste incineration tail gas treatment as claimed in claim 1, characterized in that: the number of the lime slurry spray guns (72) is four, and the angle between the two lime slurry spray guns (72) is 90 degrees.
3. The quenching deacidification equipment for hazardous waste incineration tail gas treatment as claimed in claim 1, characterized in that: the reposition of redundant personnel fence of admitting air (714) admits air and divides fence (75) including first reposition of redundant personnel fence of admitting air (714) and second, the second is admitted air and is divided fence (75) and be located the first top of admitting air reposition of redundant personnel fence (714), first reposition of redundant personnel fence of admitting air (714) and second admit air reposition of redundant personnel fence (75) and constitute by a plurality of parallel arrangement's iron set, the iron set of first reposition of redundant personnel fence of admitting air (714) and the iron set of second reposition of redundant personnel fence of admitting air (75) are 90 cross arrangement.
4. The quenching deacidification equipment for the hazardous waste incineration tail gas treatment as set forth in claim 1, characterized in that: a spray gun washing tank (73) is arranged in the quenching tower body (71), and the spray gun washing tank (73) is arranged below the lime slurry spray gun (72).
5. The quenching deacidification equipment for hazardous waste incineration tail gas treatment as claimed in claim 1, characterized in that: the knife gate valve comprises a first knife gate valve (78) and a second knife gate valve (79) which are arranged up and down.
6. The quenching deacidification equipment for the hazardous waste incineration tail gas treatment as set forth in claim 1, characterized in that: and a dry-type reactor non-metal expansion joint (711) is arranged at the joint of the elbow (710) and the Venturi tube (712).
7. The quenching deacidification equipment for hazardous waste incineration tail gas treatment as claimed in claim 1, characterized in that: the flue gas outlet pipe (77) comprises a straight-through pipe (772), an upper bent pipe (771) arranged above the straight-through pipe (772) and a lower bent pipe (773) arranged below the straight-through pipe (772), wherein the upper bent pipe (771) is communicated with the upper part of the dry reactor (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123168239.4U CN216604630U (en) | 2021-12-16 | 2021-12-16 | Quenching deacidification equipment for hazardous waste incineration tail gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123168239.4U CN216604630U (en) | 2021-12-16 | 2021-12-16 | Quenching deacidification equipment for hazardous waste incineration tail gas treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216604630U true CN216604630U (en) | 2022-05-27 |
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ID=81702604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123168239.4U Active CN216604630U (en) | 2021-12-16 | 2021-12-16 | Quenching deacidification equipment for hazardous waste incineration tail gas treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216604630U (en) |
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2021
- 2021-12-16 CN CN202123168239.4U patent/CN216604630U/en active Active
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