CN110052137A - A kind of phosphine gas method for innocent treatment and its device - Google Patents
A kind of phosphine gas method for innocent treatment and its device Download PDFInfo
- Publication number
- CN110052137A CN110052137A CN201910382567.2A CN201910382567A CN110052137A CN 110052137 A CN110052137 A CN 110052137A CN 201910382567 A CN201910382567 A CN 201910382567A CN 110052137 A CN110052137 A CN 110052137A
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- Prior art keywords
- gas
- filter
- stifling
- phosphoric acid
- phosphine
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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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/55—Compounds of silicon, phosphorus, germanium or arsenic
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The present invention provides a kind of phosphine gas method for innocent treatment, comprising the following steps: S1, primary filtration: the phosphine-containing gas generated to stifling stack position is filtered, and removes the impurity such as particulate matter, the dust in gas；S2, photooxidation catalysis: the filtered gas of step S1 is irradiated through the VUV lightsSources that wavelength is 185nm, and hydrogen phosphide is oxidized to phosphoric acid；S3, it neutralizes purification: the phosphoric acid fog generated in step S2 being passed through bicarbonate and/or carbonate solution, phosphoric acid and bicarbonate and/or carbonate solution occur neutralization reaction, generates phosphate, carbon dioxide and water；S4, circulating ventilation: the purified gas that step S3 is obtained is passed through again in stifling stack position, then repeatedly step S1.The present invention also provides a kind of processing units, realize the harmless treatment of phosphine gas.
Description
Technical field
The invention belongs to technical field of air purification more particularly to a kind of phosphine gas method for innocent treatment.
Background technique
Various insect pests easy to breed in the storage process of the agricultural product such as grain, tobacco, medicinal material and dry fruit, current main worm
Evil control measure is stifling for phosphine gas, and good disinsection effect is easy to use.But since hydrogen phosphide is a kind of hypertoxic gas,
If being handled not to the air containing hydrogen phosphide with regard to direct emission after stifling operation, it is possible to can be made to the human or animal on periphery
At injury.
Existing spray column purifying hydrogen phosphide method has the following disadvantages:
(1) use potassium permanganate as neutralization reaction agent, potassium permanganate belongs to dangerous material, has certain risk, control
It is relatively high with the requirement of safety operation；
(2) use calcium hypochlorite as neutralization reaction agent, chlorine can be generated, harmless treatment can not be fully achieved；
(3), using the product after activated carbon adsorption neutralization reaction, need by multiple circular response, working efficiency is low, simultaneously
Generate big carbon content active waste.
Therefore, the operating procedure of existing hydrogen phosphide processing method is complicated, and product processing is difficult, and can not fully achieve
The safety and environmental protection of phosphine fumigation exhaust gas discharges.
Summary of the invention
In view of the foregoing drawbacks, it is high, safety non-pollution that the technical problem to be solved in the present invention is to provide a kind of purification efficiencies
Phosphine gas method for innocent treatment.
The present invention provides a kind of phosphine gas method for innocent treatment, comprising the following steps:
S1, primary filtration: to stifling stack position generate phosphine-containing gas be filtered, remove gas in particulate matter,
The impurity such as dust；
S2, photooxidation catalysis: the filtered gas of step S1 is irradiated through the VUV lightsSources that wavelength is 185nm, phosphatization
Hydrogen-oxygen turns to phosphoric acid；
S3, it neutralizes purification: the phosphoric acid fog generated in step S2 is passed through bicarbonate and/or carbonate solution, phosphoric acid
Neutralization reaction occurs with bicarbonate and/or carbonate solution, generates phosphate, carbon dioxide and water；
S4, circulating ventilation: the purified gas that step S3 is obtained is passed through again in stifling stack position, then repeatedly step
S1。
Preferably, the stifling stack position in the step S1 is set in sealing bagging, and the sealing bagging is equipped with ventilation
Mouthful, the vents seal is connected with air pipeline.
Preferably, the air pipeline is equipped with multiple ball valves.
Preferably, the air pipeline is equipped with gas concentration detector.
Preferably, in step s3, phosphoric acid fog is passed through sodium bicarbonate solution.
The present invention also provides processing units used by a kind of aforementioned processing methods, comprising: leading portion filter was used for
The impurity such as particulate matter, dust in air filtration body, one end are connected with air inlet；Photooxidation catalytic reactor, being provided with wavelength is
The VUV lightsSources of 185nm；Back segment filter, wherein being contained with bicarbonate and/or carbonate solution；Circulating fan,
One end is connected with gas outlet；Carrier loader, bottom are equipped with multiple idler wheels；The leading portion filter, photooxidation catalytic reactor, back segment
Filter and circulating fan are sequentially communicated, and are arranged on the carrier loader；The air inlet, gas outlet and stifling stack position
It is connected.
Preferably, the leading portion filter is filter screen or filter plate.
Preferably, first gas uniform device, the photooxidation are equipped between the leading portion filter and photooxidation catalytic reactor
Second gas uniform device is equipped between catalytic reactor and back segment filter.
Preferably, the leading portion filter, first gas uniform device, photooxidation catalytic reactor, second gas uniform device and
Back segment filter is to be sequentially communicated from bottom to top, is connected between the circulating fan and back segment filter by connecting tube.
Preferably, power control is additionally provided on the carrier loader.
The invention has the beneficial effects that:
(1) complete phosphine gas it is stifling after, by toxic hydrogen phosphide tail gas decomposition and inversion be nontoxic carbon dioxide,
The nontoxic neutral substance such as phosphate and water, and purified gas recycled back is fumigated into stack position, phosphine gas concentration is continuous
It reduces, realizes the safety and environmental protection discharge of phosphine fumigation exhaust gas, it is ensured that the gas componant safety of environment in warehouse；
(2) using miniaturization processing unit, it can be flexibly applied to each warehouse, and in-situ FTIR spectroelectrochemitry is quick after processing, no
Influence warehouse normal operation；
(3) purification efficiency is high, and treatment process is simple.
Detailed description of the invention
Fig. 1 is the schematic diagram of phosphine gas method for innocent treatment of the present invention；
Fig. 2 is the structural schematic diagram of phosphine gas harmless treatment device of the present invention；
Fig. 3 is the use state diagram of phosphine gas harmless treatment device of the present invention；
Fig. 4 is the structural schematic diagram of even gas distribution device.
Component label instructions:
1 stifling stack position
2 leading portion filters
3 photooxidation catalytic reactors
4 back segment filters
5 circulating fans
6 ball valves
7 gas concentration detectors
81 first gas uniform devices
82 second gas uniform devices
9 power controls
10 carrier loaders
11 connecting tubes
12 idler wheels
13 brackets
14 processing units
15 air pipelines
A air inlet
The gas outlet B
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.These embodiments are only used for
Illustrate the present invention, and not limitation of the present invention.
In the description of the present invention, it should be noted that term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance.In the description of the present invention, it should be noted that unless otherwise specific regulation and
It limits, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachable
Connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, centre can also be passed through
Medium is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be according to tool
Body situation understands the concrete meaning of above-mentioned term in the present invention.
In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
As shown in Figure 1, the present invention provides a kind of phosphine gas method for innocent treatment, comprising the following steps:
S1, primary filtration: to stifling stack position 1 generate phosphine-containing gas be filtered, remove gas in particulate matter,
The impurity such as dust；
S2, photooxidation catalysis: the filtered gas of step S1 is irradiated through the VUV lightsSources that wavelength is 185nm, wherein
Partial oxidation molecule in air generates free oxygen through the ultraviolet light degradation of 185nm, and free oxygen is further in conjunction with oxygen molecule
Generate ozone.Under the irradiation of ultraviolet light source, hydrogen phosphide and ozone reaction generate phosphoric acid and in air in the form of fog
In the presence of.Specifically, VUV lightsSources are cold light lamp.
S3, it neutralizes purification: the phosphoric acid fog generated in step S2 is passed through bicarbonate and/or carbonate solution, phosphoric acid
It reacts with bicarbonate and/or carbonate solution, nontoxic phosphate, carbon dioxide and water are stablized in generation.Preferably adopt
It is reacted with sodium bicarbonate solution with hydrogen phosphide, because the cost of material of sodium bicarbonate is low, easy acquisition, reaction effect is good.
S4, circulating ventilation: the purified gas that step S3 is obtained is passed through again in stifling stack position 1, then repeats to walk
Rapid S1, so that the phosphine concentration in stifling stack position 1 constantly reduces, the final innoxious place for realizing hydrogen phosphide in stifling stack position 1
Reason.
Stifling stack position 1 in step S1 is located in closed environment, is preferably set in the close of PAPE plastic sheeting making
In big envelope bag, sealing bagging is equipped with blow vent, and vents seal is connected with air pipeline 15.Air pipeline 15 is equipped with multiple
Ball valve 6 is additionally provided with gas concentration detector on air pipeline 15 for the gas in air pipeline 15 to be adjusted and controlled
7, so as to detect the phosphine concentration in air pipeline 15.
As shown in Figure 1-Figure 3, the present invention also provides processing units 14 used by a kind of aforementioned processing methods, comprising:
Sequentially connected leading portion filter 2, photooxidation catalytic reactor 3, back segment filter 4 and circulating fan 5.Leading portion filter 2 is corresponding
Step S1, for filtering the impurity such as the particulate matter in gas, dust, leading portion filter 2 specifically can be filter screen or filtering
Plate, and one end is connected with air inlet A.Photooxidation catalytic reactor 3 corresponds to step S2, and it is purple to be provided with the vacuum that wavelength is 185nm
Outer linear light source finally converts phosphoric acid for hydrogen phosphide for photooxidation catalysis reaction to occur.Back segment filter 4 corresponds to step S3,
In be contained with bicarbonate and/or carbonate solution, convert phosphate, carbon dioxide and water for phosphoric acid fog.Circulating fan 5
Corresponding step S4, one end is connected with gas outlet B, sends the gas that step S3 is exported back to stifling stack position 1 again.Wherein air inlet A, go out
Port B is connected with stifling stack position 1, under the action of circulating fan 5, fumigates stack position 1 and the gas unidirectional in processing unit 14
It circulates.
In order to realize the miniaturization of processing unit 14, processing unit 14 further includes that delivery of the bottom equipped with multiple idler wheels 12 is small
Vehicle 10, leading portion filter 2, photooxidation catalytic reactor 3, back segment filter 4 and circulating fan 5 are sequentially communicated, and are arranged at fortune
It carries on trolley 10.It, can easily will be in processing unit 14 when needing to handle the phosphatization gas in stifling stack position 1
Air inlet A, gas outlet B be connected with the air pipeline 15 of stifling stack position 1, with stop with, it is easy to use flexibly.
In one particular embodiment of the present invention, the first gas is equipped between leading portion filter 2 and photooxidation catalytic reactor 3
Body uniform device 81 is equipped with second gas uniform device 82 between photooxidation catalytic reactor 3 and back segment filter 4.First gas is uniformly distributed
The structure of device 81 and second gas uniform device 82 is as shown in figure 4, the plate for being uniformly provided with multiple stomatas for one.In this way by leading portion mistake
The filtered gas of filter 2 can evenly distributedly enter photooxidation catalytic reactor 3, and the phosphoric acid fog of generation equally can be uniform
Distribution ground enters back segment filter 4 and reacts with bicarbonate and/or carbonate solution, the gas being further ensured that in each step
It can sufficiently react.
In order to keep the structure of processing unit 14 more compact, leading portion filter 2, first gas uniform device 81, photooxidation catalysis
Reactor 3, second gas uniform device 82 and back segment filter 4 are to be sequentially communicated from bottom to top, circulating fan 5 and back segment filter
It is connected between 4 by connecting tube 11.Power control 9 is also preferably provided on carrier loader 10, power control 9 is installed
On bracket 13, staff can be according to VUV lightsSources in operating conditions circulating fan 5, photooxidation catalytic reactor 3
Opening and closing, and other control functions are added as needed.
In conclusion the invention has the beneficial effects that:
(1) complete phosphine gas it is stifling after, by toxic hydrogen phosphide tail gas decomposition and inversion be nontoxic carbon dioxide,
The nontoxic neutral substance such as phosphate and water, and purified gas recycled back is fumigated into stack position, phosphine gas concentration is continuous
It reduces, realizes the safety and environmental protection discharge of phosphine fumigation exhaust gas, it is ensured that the gas componant safety of environment in warehouse；
(2) using miniaturization processing unit, it can be flexibly applied to each warehouse, and in-situ FTIR spectroelectrochemitry is quick after processing, no
Influence warehouse normal operation；
(3) purification efficiency is high, and treatment process is simple.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of phosphine gas method for innocent treatment, which comprises the following steps:
S1, primary filtration: the phosphine-containing gas generated to stifling stack position (1) is filtered, and removes particulate matter, ash in gas
The impurity such as dirt；
S2, photooxidation catalysis: the filtered gas of step S1 is irradiated through the VUV lightsSources that wavelength is 185nm, phosphatization hydrogen-oxygen
Turn to phosphoric acid；
S3, it neutralizes purification: the phosphoric acid fog generated in step S2 is passed through bicarbonate and/or carbonate solution, phosphoric acid and carbon
Neutralization reaction occurs for sour hydrogen salt and/or carbonate solution, generates phosphate, carbon dioxide and water；
S4, circulating ventilation: the purified gas that step S3 is obtained is passed through again in stifling stack position (1), then repeatedly step
S1。
2. processing method according to claim 1, which is characterized in that the stifling stack position (1) in the step S1 is set in
It seals in bagging, the sealing bagging is equipped with blow vent, and the vents seal is connected with air pipeline (15).
3. processing method according to claim 2, which is characterized in that the air pipeline (15) is equipped with multiple ball valves
(6)。
4. processing method according to claim 2, which is characterized in that the air pipeline (15) is examined equipped with gas concentration
It surveys instrument (7).
5. processing method according to claim 1, which is characterized in that in step s3, phosphoric acid fog is passed through bicarbonate
Sodium solution.
6. processing unit used by a kind of processing method as described in claim 1 characterized by comprising
Leading portion filter (2), for filtering the impurity such as the particulate matter in gas, dust, one end is connected with air inlet；
Photooxidation catalytic reactor (3) is provided with the VUV lightsSources that wavelength is 185nm；
Back segment filter (4), wherein being contained with bicarbonate and/or carbonate solution；
Circulating fan (5), one end is connected with gas outlet；
Carrier loader (10), bottom are equipped with multiple idler wheels (12)；
The leading portion filter (2), photooxidation catalytic reactor (3), back segment filter (4) and circulating fan (5) are sequentially communicated, and
It is arranged on the carrier loader (10)；
The air inlet, gas outlet are connected with stifling stack position (1).
7. processing unit according to claim 6, which is characterized in that the leading portion filter (2) is filter screen or filtering
Plate.
8. processing unit according to claim 6, which is characterized in that the leading portion filter (2) is reacted with photooxidation catalysis
First gas uniform device (81) are equipped between device (3), are equipped between the photooxidation catalytic reactor (3) and back segment filter (4)
Second gas uniform device (82).
9. processing unit according to claim 8, which is characterized in that the leading portion filter (2), first gas uniform device
(81), photooxidation catalytic reactor (3), second gas uniform device (82) and back segment filter (4) are to be sequentially communicated from bottom to top, institute
It states and is connected between circulating fan (5) and back segment filter (4) by connecting tube (11).
10. processing unit according to claim 6, which is characterized in that be additionally provided with power supply control on the carrier loader (10)
Device (9) processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382567.2A CN110052137A (en) | 2019-05-09 | 2019-05-09 | A kind of phosphine gas method for innocent treatment and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382567.2A CN110052137A (en) | 2019-05-09 | 2019-05-09 | A kind of phosphine gas method for innocent treatment and its device |
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| CN110052137A true CN110052137A (en) | 2019-07-26 |
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| CN201910382567.2A Pending CN110052137A (en) | 2019-05-09 | 2019-05-09 | A kind of phosphine gas method for innocent treatment and its device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716653A (en) * | 2011-03-30 | 2012-10-10 | 中国人民解放军63971部队 | Method for purifying phosphine tail gas from fumigation |
| CN206138974U (en) * | 2016-11-08 | 2017-05-03 | 河南金明自动化设备有限公司 | Granary hydrogen phosphate exhaust emissions purifier |
| CN207546227U (en) * | 2017-12-05 | 2018-06-29 | 敏达环保科技（嘉兴）有限公司 | A kind of photocatalytic waste gas treatment device |
-
2019
- 2019-05-09 CN CN201910382567.2A patent/CN110052137A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716653A (en) * | 2011-03-30 | 2012-10-10 | 中国人民解放军63971部队 | Method for purifying phosphine tail gas from fumigation |
| CN206138974U (en) * | 2016-11-08 | 2017-05-03 | 河南金明自动化设备有限公司 | Granary hydrogen phosphate exhaust emissions purifier |
| CN207546227U (en) * | 2017-12-05 | 2018-06-29 | 敏达环保科技（嘉兴）有限公司 | A kind of photocatalytic waste gas treatment device |
Non-Patent Citations (3)
| Title |
|---|
| 梁吉艳等: "《环境工程学》", 31 October 2014, 中国建材工业出版社 * |
| 王驰: "《典型有毒有害气体净化技术》", 31 March 2019, 冶金工业出版社 * |
| 程传秀等: "《储粮新技术教程》", 31 July 2001, 北京：中国商业出版社 * |
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Application publication date: 20190726 |