CN220386208U - Phosphine gas recovery device - Google Patents
Phosphine gas recovery device Download PDFInfo
- Publication number
- CN220386208U CN220386208U CN202321924958.0U CN202321924958U CN220386208U CN 220386208 U CN220386208 U CN 220386208U CN 202321924958 U CN202321924958 U CN 202321924958U CN 220386208 U CN220386208 U CN 220386208U
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- China
- Prior art keywords
- phosphine
- gas
- casing
- baffle
- ozone
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- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 title claims abstract description 146
- 229910000073 phosphorus hydride Inorganic materials 0.000 title claims abstract description 73
- 238000011084 recovery Methods 0.000 title claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 24
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract description 40
- 239000012535 impurity Substances 0.000 abstract description 31
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract description 20
- 239000000428 dust Substances 0.000 abstract description 11
- 239000003595 mist Substances 0.000 abstract description 8
- 238000006479 redox reaction Methods 0.000 abstract description 4
- 238000004887 air purification Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 58
- 238000001179 sorption measurement Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003640 drug residue Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000010891 toxic waste Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of air purification and recovery, in particular to a phosphine gas recovery device. The device comprises a gas conveying pipeline, a fan, a impurity removing mechanism, a phosphine absorption tank and an ozone machine, wherein one end of the gas conveying pipeline is connected with a gas outlet of a grain depot, and the other end of the gas conveying pipeline is connected with the impurity removing mechanism through the fan; the utility model firstly removes impurities from the mixture of phosphine, dust impurities and the like in the granary, can ensure that the phosphoric acid at the later stage does not contain impurities, the phosphine gas after the impurity removal has certain humidity, enters a phosphine absorption tank to perform oxidation-reduction reaction with ozone, the generated phosphoric acid mist is condensed into small water drops through a demister to fall into the bottom of the phosphine absorption tank to be collected, the phosphoric acid can be recycled after being collected, the active carbon absorption layer can absorb the residual phosphoric acid mist in the phosphine absorption tank, decompose ozone, and the purified gas is discharged into the atmosphere.
Description
Technical Field
The utility model relates to the technical field of air purification and recovery, in particular to a phosphine gas recovery device.
Background
In the grain storage process, various pests are easy to breed, phosphine is utilized to fumigate the granary, the insecticidal effect is good, the use is convenient, the cost is low, the drug residue is less, the residue is nontoxic, the fumigating agent is the safest fumigating agent, and the phosphine is used as the displacement fumigating agent in a plurality of countries. Phosphine is a toxic waste gas, and after fumigating and disinfesting the granary, a method of windowing and diffusing air is generally adopted to discharge the residual phosphine gas in the granary cleanly, and the operation mode is likely to cause damage to surrounding plants or animals due to the strong toxicity of the phosphine; because the windowing and air dispersing are required to be operated manually, custodians directly enter into the environment of highly toxic gases to perform windowing, huge harm is caused to the bodies of the custodians, poisoning death is caused seriously, and the method is particularly important for treating the phosphine gas, otherwise, air pollution is caused, and life and health of people are endangered.
Disclosure of Invention
Aiming at the problems that personnel injury is easily caused by artificial windowing and air dispersion in the background technology and environmental pollution is easily caused by direct discharge, the utility model provides a phosphine gas recovery device by utilizing stronger reducibility of phosphine.
In order to solve the technical problems, the utility model provides a phosphine gas recovery device, which comprises a gas conveying pipeline, a fan, a impurity removing mechanism, a phosphine absorption tank and an ozone machine, wherein one end of the gas conveying pipeline is connected with a gas outlet of a grain depot, the other end of the gas conveying pipeline is connected with the impurity removing mechanism through the fan, the impurity removing mechanism is connected with the phosphine absorption tank through the conveying pipeline, a demister and an active carbon adsorption layer are sequentially arranged in the phosphine absorption tank from top to bottom, an exhaust port is formed in the top of the phosphine absorption tank, and the ozone machine is connected with the phosphine absorption tank through an ozone conveying pipe.
Further, edulcoration mechanism includes the casing, sets up in the gas outlet first on casing upper portion, and casing bottom filling has aqueous solution, and the interior casing horizontal direction of following of casing is equipped with the admission line, has seted up a plurality of ventholes first on the admission line, gas outlet first passes through pipeline connection with phosphine absorption tank, be provided with the spray pipe along the horizontal direction of casing in the casing, be provided with a plurality of shower on the spray pipe, the shower is located the top of admission line, the water inlet end of spray pipe is connected through the conduit with the bottom of the lateral wall of casing, is provided with the water pump on the conduit.
Further, the baffle that the level was provided with in the casing, the shower head is located the bottom of baffle, and one side of baffle is provided with baffle one and baffle two along the vertical direction of casing, and baffle one and baffle two form a passageway of giving vent to anger, and gas outlet two has been seted up on baffle one's upper portion, and the bottom of baffle one is fixed in the bottom of casing, and the bottom of baffle two stretches into in the aqueous solution of casing bottom.
Further, be provided with the gas even distributor in the phosphine absorption jar, the gas even distributor is the tubular structure of plane spiral, and the one end of gas even distributor is sealed, and the other end and the ozone conveyer pipe of gas even distributor are connected, and a plurality of venthole two has been seted up to the bottom of gas even distributor.
Further, the bottom of the phosphine absorption tank is funnel-shaped and is provided with a liquid outlet.
Compared with the prior art, the utility model has the beneficial effects that: 1. according to the utility model, the mixed gas is fully contacted with the mixed gas through the spray header, the gas is uniformly mixed with water, the adsorption effect of water on dust and impurities in the gas is improved, the gas which is not contacted or adsorbed with water enters the water along the air outlet channel, and the water solution at the bottom of the shell is further filtered, so that the dust removing and impurity removing effects on the gas are improved, and the phosphoric acid extracted in the later stage can be ensured to contain no impurities;
2. the phosphine gas after impurity removal has certain humidity, enters a phosphine absorption tank to perform oxidation-reduction reaction with ozone, the generated phosphoric acid mist is condensed into small water drops through a demister and falls into the bottom of the phosphine absorption tank to be collected, phosphoric acid can be recycled after being collected, the residual phosphoric acid mist in the phosphine absorption tank can be absorbed by an activated carbon adsorption layer, ozone is decomposed, and the purified gas is discharged into the atmosphere;
3. ozone passes through the gas uniform distributor to disperse ozone gas into the phosphine absorption tank, so that the ozone and the phosphine react more thoroughly under a certain humidity, and the reaction speed is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
figure 2 is a cross-sectional view of the utility model at A-A.
In the figure, 1, a gas conveying pipeline; 2. a blower; 3. a impurity removing mechanism; 31. a housing; 32. an air intake duct; 33. a water spray pipe; 34. a water pipe; 35. a baffle; 36. a first partition board; 37. a second partition board; 38. an air outlet channel; 39. a second air outlet; 4. an absorption tank; 5. an ozone machine; 6. a delivery conduit; 7. a demister; 8. an activated carbon adsorption layer; 9. an exhaust port; 10. an ozone delivery tube; 11. a gas uniform distributor; 12. a support rod; 13. and a liquid outlet.
Detailed Description
The following are specific embodiments of the present utility model, and the technical solutions of the present utility model are further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1, the utility model provides a phosphine gas recovery device, which comprises a gas conveying pipeline 1, a fan 2, a impurity removing mechanism 3, a phosphine absorption tank 4 and an ozone machine 5, wherein one end of the gas conveying pipeline 1 is connected with a gas outlet of a grain depot, the other end of the gas conveying pipeline 1 is connected with the impurity removing mechanism 3 through the fan 2, the impurity removing mechanism 3 is connected with the phosphine absorption tank 4 through a conveying pipeline 6, a demister 7 and an activated carbon adsorption layer 8 are sequentially arranged in the phosphine absorption tank 4 from top to bottom, an exhaust port 9 is formed in the top of the phosphine absorption tank 4, and the ozone machine 5 is connected with the phosphine absorption tank 4 through an ozone conveying pipe 10.
Referring to fig. 1, the residual phosphine gas in the granary may carry dust and impurities, the gas is firstly purified by the fan 2 through the impurity removing mechanism 3, the purified gas enters the phosphine absorbing tank 4 to undergo oxidation-reduction reaction with ozone, the generated phosphoric acid mist is condensed into small water drops by the demister 7 and falls into the bottom of the phosphine absorbing tank 7 to be collected, the phosphoric acid is collected for recycling, the active carbon absorbing layer can absorb the residual phosphoric acid mist in the phosphine absorbing tank 7 and decompose ozone, and the purified gas is discharged into the atmosphere.
The impurity removing mechanism 3 comprises a shell 31 and a first air outlet arranged on the upper portion of the shell 31, an aqueous solution is filled in the bottom of the shell 31, an air inlet pipeline 32 is arranged in the shell 31 along the horizontal direction of the shell 31, a plurality of first air outlets are formed in the air inlet pipeline 32, the first air outlet is connected with the phosphine absorption tank 4 through a conveying pipeline 6, a spray pipe 33 is arranged in the shell 31 along the horizontal direction of the shell 31, a plurality of spray heads are arranged on the spray pipe 33, the spray heads are located above the air inlet pipeline 32, the water inlet end of the spray pipe 33 is connected with the bottom of the side wall of the shell 31 through a water conveying pipeline 34, and a water pump is arranged on the water conveying pipeline 34.
Referring to fig. 1, the blower 2 pumps phosphine and dust and other impurities into the casing 31, the air outlets on the air inlet pipeline 32 uniformly disperse the air into the casing 31 upwards, meanwhile, the water pump pumps the water solution at the bottom of the casing 31 onto the water spray pipe 33, the spray heads spray downwards, the mixture of phosphine, dust and impurities and the like in the granary fully contacts the mixed air through the spray heads, the air and water are uniformly mixed, and the adsorption effect of the water on the dust and impurities in the air is improved.
The baffle 35 horizontally arranged in the shell 31, the spray header is positioned at the bottom of the baffle 35, one side of the baffle 35 is provided with a first baffle 36 and a second baffle 37 along the vertical direction of the shell 31, the first baffle 36 and the second baffle 37 form an air outlet channel 38, the upper part of the first baffle 36 is provided with a second air outlet 39, the bottom of the first baffle 36 is fixed at the bottom of the shell 31, and the bottom of the second baffle 37 extends into the aqueous solution at the bottom of the shell 31.
As shown in fig. 1, the gas after spraying and dedusting enters water along the air outlet channel 38, wherein the gas which is not contacted with water or is not adsorbed and carries impurities such as dust enters water and is further purified and filtered by the aqueous solution, so that the dedusting and impurity removing effects on the phosphine gas are further improved.
The phosphine absorption tank 4 is internally connected with a gas uniform distributor 11 through a supporting rod 12, the supporting rod 12 is fixedly arranged in the phosphine absorption tank 4, the gas uniform distributor 11 is of a planar spiral tubular structure, one end of the gas uniform distributor 11 is sealed, the other end of the gas uniform distributor 11 is connected with an ozone conveying pipe 10, and a plurality of second air outlets are formed in the bottom of the gas uniform distributor 11 and spray ozone to the direction of phosphine gas.
With reference to fig. 2, the gas uniform distributor 11 uniformly distributes ozone in the phosphine absorption tank 4, so that the contact area of the ozone and the phosphine is sufficiently increased, the ozone and the phosphine can react more thoroughly under a certain humidity, and the reaction speed is improved.
The bottom of the phosphine absorption tank 4 is funnel-shaped and is provided with a liquid outlet 13.
As shown in fig. 1, the bottom of the phosphine absorption tank 4 is funnel-shaped, so that phosphoric acid can be conveniently collected, and the phosphoric acid is periodically recovered through the liquid outlet 12, the recovered phosphoric acid does not contain impurities, and impurities are not required to be removed when the phosphoric acid is recovered for use, so that the phosphoric acid can be conveniently used in a later period.
The use principle is as follows: the fan 2 pumps the phosphine and dust and other impurities into the shell 31, a plurality of air outlets on the air inlet pipeline 32 upwards uniformly disperse the gas into the shell 31, meanwhile, the water pump pumps the water solution at the bottom of the shell 31 to the water spray pipe 33, the spray heads spray the water downwards, the mixed gas of phosphine, dust and other impurities in the granary is fully contacted with the mixed gas through the spray heads, the gas is uniformly mixed with water, the sprayed and dedusted gas enters the water along the air outlet channel 38, the gas which is not contacted with the water or is not adsorbed and carries the dust and other impurities enters the water is further dedusted and filtered by the water solution, the purified gas carries water vapor to enter the phosphine absorption tank 4 to be subjected to oxidation reduction reaction with ozone, the generated phosphoric acid mist is condensed into small water drops to the bottom of the phosphine absorption tank 7 through the spray head 7, the phosphoric acid is collected to be recycled, the collected phosphoric acid does not contain the impurities, the active carbon adsorption layer can absorb the residual phosphoric acid mist in the phosphine absorption tank 7, the ozone is decomposed, and the purified gas is discharged into the atmosphere.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (5)
1. A phosphine gas recovery device, characterized in that: including gas delivery pipeline (1), fan (2), edulcoration mechanism (3), phosphine absorption jar (4) and ozone machine (5), the one end of gas delivery pipeline (1) is connected with the gas export of grain depot, and the other end of gas delivery pipeline (1) is connected with edulcoration mechanism (3) through fan (2), edulcoration mechanism (3) are connected through pipeline (6) with phosphine absorption jar (4), have set gradually defroster (7) and active carbon adsorbed layer (8) from top to bottom in phosphine absorption jar (4), and gas vent (9) have been seted up at the top of phosphine absorption jar (4), ozone machine (5) are connected with phosphine absorption jar (4) through ozone conveyer pipe (10).
2. A phosphine gas recovery apparatus as set forth in claim 1, wherein: the utility model provides an edulcoration mechanism (3) include casing (31), set up in the gas outlet first on casing (31) upper portion, casing (31) bottom packing has aqueous solution, and the interior edge casing (31) horizontal direction of casing (31) is equipped with admission line (32), has seted up a plurality of ventholes first on admission line (32), gas outlet first is connected through pipeline (6) with phosphine absorption tank (4), be provided with spray pipe (33) along the horizontal direction of casing (31) in casing (31), be provided with a plurality of shower on spray pipe (33), the shower is located the top of admission line (32), the water inlet end of spray pipe (33) is connected through pipeline (34) with the bottom of the lateral wall of casing (31), is provided with the water pump on pipeline (34).
3. A phosphine gas recovery apparatus as set forth in claim 2, wherein: baffle (35) that the level was provided with in casing (31), the shower head is located the bottom of baffle (35), one side of baffle (35) is provided with baffle one (36) and baffle two (37) along casing (31) vertical direction, baffle one (36) and baffle two (37) form a passageway of giving vent to anger (38), gas outlet two (39) have been seted up on the upper portion of baffle one (36), and the bottom of baffle one (36) is fixed in the bottom of casing (31), the bottom of baffle two (37) stretches into in the aqueous solution of casing (31) bottom.
4. A phosphine gas recovery apparatus as set forth in claim 3, wherein: the phosphine absorption tank (4) is internally provided with a gas uniform distributor (11), the gas uniform distributor (11) is of a planar spiral tubular structure, one end of the gas uniform distributor (11) is sealed, the other end of the gas uniform distributor (11) is connected with an ozone conveying pipe (10), and a plurality of second air outlet holes are formed in the bottom of the gas uniform distributor (11).
5. A phosphine gas recovery apparatus as set forth in claim 4, wherein: the bottom of the phosphine absorption tank (4) is funnel-shaped and is provided with a liquid outlet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321924958.0U CN220386208U (en) | 2023-07-21 | 2023-07-21 | Phosphine gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321924958.0U CN220386208U (en) | 2023-07-21 | 2023-07-21 | Phosphine gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220386208U true CN220386208U (en) | 2024-01-26 |
Family
ID=89600210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321924958.0U Active CN220386208U (en) | 2023-07-21 | 2023-07-21 | Phosphine gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220386208U (en) |
-
2023
- 2023-07-21 CN CN202321924958.0U patent/CN220386208U/en active Active
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