CN106268232B - A kind of processing unit and processing method of waste gas containing fluoride - Google Patents
A kind of processing unit and processing method of waste gas containing fluoride Download PDFInfo
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- CN106268232B CN106268232B CN201610797021.XA CN201610797021A CN106268232B CN 106268232 B CN106268232 B CN 106268232B CN 201610797021 A CN201610797021 A CN 201610797021A CN 106268232 B CN106268232 B CN 106268232B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- 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
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1406—Multiple stage absorption
-
- 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
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
Abstract
The present invention provides the processing unit and processing method of a kind of waste gas containing fluoride, is related to technical field of waste gas treatment.The present invention includes major trough body and the blast pipe that is mounted at the top of major trough body, the major trough body exterior side wall is equipped with the through-hole for connecting reservoir, major trough body includes separating the multiple separate slots formed by least two partitions, packing layer is equipped in each separate slot, and each separate slot is divided into top spray cleaning layer and lower part solution absorbed layer by packing layer, the partition is equipped with the ventilation hole that exhaust gas is passed through to another separate slot, utilize apparatus of the present invention, waste gas containing fluoride absorbs through multiple processes, purified treatment, waste gas containing fluoride purification efficiency is high, high treating effect.
Description
Technical field
The present invention relates to technical field of waste gas treatment, and in particular to a kind of processing unit and processing method of waste gas containing fluoride.
Background technique
Phosphoric acid and phosphate fertilizer plant, glass production, aluminium alloy production, the production of lithium hexafluoro phosphate, waste and old lithium ion battery at present
A large amount of waste gas containing fluoride can be generated when the productions such as electrolyte recycling, waste and old lithium ion battery recycling cracking and lithium ion battery,
And exhaust gas concentration is high.Waste gas containing fluoride is very harmful to human body, animals and plants, it is necessary to which purified processing reaches National Environmental Protection Agency's regulation
Discharge standard after could high altitude discharge.
In the prior art, waste gas containing fluoride is generally absorbed frequently with second level, is divided into one device of a Room, one tower of a Room, a Room one rotation
Deng " room " is water repellent wheel and other forms absorption chamber, is typically used as first order absorption, but defluorinate, goes fluorine inefficient.After and
Reason is difficult, though exhaust gas absorptivity high to fluorinated volume after water or Alkali absorption processing can reach 98%, not up to national ring
Protect the discharge standard of agencies dictate；Waste gas containing fluoride is using two Room, one tower, second level spray column, the processing of three-level spray column, equipment land occupation
Area is big, and primary investment, maintenance, repair are at high cost, and exhaust gas discharge can only also meet national 1996 table 2 of GB16297-after processing
Fluoride emission standard.
Exhaust gas discharge will meet the 4.2nd " atmosphere of GB21900-2008 " discharge standard for electroplating pollutants " after existing exhaust-gas treatment
Pollutant emission control requirement " fluoride emission amount is lower than 7mg/m3。
It is increasingly severe in face of waste gas containing fluoride pollution, there are many waste gas treatment equipment producers to water repellent wheel and other shapes in the past
Formula absorbs cell structure and improves, and waste gas containing fluoride treatment effect is still undesirable, and waste gas containing fluoride is handled through absorption chamber absorption cleaning,
Exhaust gas discharge still cannot reach GB21900-2008 discharge standard after entering back into subsequent spray process tower purified treatment.
Summary of the invention
(1) the technical issues of solving
In view of the shortcomings of the prior art, the present invention provides the processing unit and processing method of a kind of waste gas containing fluoride, solve existing
There are water repellent wheel and other forms absorption chamber to waste gas containing fluoride poor processing effect, undesirable technical problem.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of processing unit of waste gas containing fluoride, including major trough body and the blast pipe being mounted at the top of major trough body, the master
Groove body exterior side wall is equipped with through-hole for connecting reservoir, major trough body include separated by least two partitions formed it is multiple every
Slot is equipped with packing layer in each separate slot, and each separate slot is divided into top spray cleaning layer to packing layer and lower part solution is inhaled
Layer is received, the partition is equipped with the ventilation hole for exhaust gas to be passed through to another separate slot.
Preferably, the major trough body is separated by first partition and second partition forms the first separate slot, the second separate slot and third
Separate slot, the first partition top is equipped with ventilation hole, and is located above packing layer, and the second partition lower part is equipped with ventilation hole,
And it is located in the solution layer below packing layer.
Preferably, two sides are equipped with the first nozzle at the top of the partition, and the top inside major trough body side plate is equally set
There is the first nozzle.
Preferably, the major trough body and partition are integral solder.
Preferably, the blast pipe is arranged at the top of first separate slot, and air inlet bottom of the tube is equipped with elbow.
Preferably, air-exhausting duct is equipped at the top of the third separate slot.
Preferably, it is equipped with the second spray tube outside the major trough body, second spray tube and the first spray tube pass through tune
Section header connection.
Preferably, the reservoir is equipped with self water feeding pipeline and discharge of wastewater pipeline.
A method of waste gas containing fluoride is handled using the processing unit, comprising the following steps:
S1, waste gas containing fluoride are entered in the first separate slot bottom liquid level by blast pipe, molten after lye water-bath cooling, gas-liquid contact
Liquid absorbed layer carries out solution absorption processing, enters back into upper packing layers by contact absorption cleaning processing, enters upper layer afterwards and spray
Purifying layer processing；
S2, after the absorption of step S1, purified treatment, exhaust gas enters the spray of next separate slot by the venthole of partition
Purifying layer enters packing layer after purified treatment and contacts absorption cleaning process layer, enters back into separate slot bottom solution absorbed layer；
S3, step S2 separate slot bottom solution absorbed layer treated exhaust gas enter the solution absorbed layer of next separate slot bottom,
After gas-liquid contact solution absorption processing, a part of exhaust gas ascends into packing layer contact absorption cleaning process layer, returns again to
Into separate slot bottom solution absorbed layer, the venthole that another part gas directly passes through partition enters the solution of next separate slot bottom
Absorbed layer processing；
S4, step S3 is repeated, after exhaust gas enters the processing of the last one separate slot bottom solution absorbed layer, enters back into filler
Layer contacts absorption cleaning processing and the processing of spray cleaning layer, and treated, and exhaust gas is net into subsequent spray process tower by air-exhausting duct
Change processing carries out high altitude discharge after exhaust-gas treatment is up to standard.
(3) beneficial effect
The present invention provides the processing unit and processing method of a kind of waste gas containing fluoride, and advantage is compared with prior art:
Apparatus of the present invention include that major trough body is divided into multiple separate slots by least two partitions, then by being located at different separate slots
Partition top or lower part be equipped with venthole, it is ensured that exhaust gas can pass through multiple process purified treatments, and filler with every
The mating reaction of plate fully absorbs processing so that waste gas containing fluoride is sufficiently contacted with lye, being capable of efficient, stable, reliable purification
Waste gas containing fluoride improves purification efficiency and exhaust-gas treatment as a result, mitigating subsequent processing burden, and exhaust gas discharges after handling waste gas containing fluoride
Lower than 7mg/m3, reach GB21900-2008 discharge standard, the processing unit of waste gas containing fluoride of the present invention simple, performance with structure
Stable feature；
Processing method of the present invention is reliable, after waste gas containing fluoride enters processing unit, carries out lye water-bath cooling first, again through gas
Liquid contact lye absorption is handled, again through packing layer contact absorption cleaning processing and spray cleaning processing, and repeated multiple times progress is above-mentioned
Processing absorbs the abundant lye of waste gas containing fluoride, improves waste gas containing fluoride purification efficiency, waste gas containing fluoride high treating effect, ideal；And
Water can also recycle after wastewater treatment is up to standard, energy saving；Liquid level and solution pH value in processing unit are certainly
Dynamic control, guarantees the concentration of lye and the stabilization of pH value, improves exhaust purification efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is main view of the present invention；
Fig. 2 is left view of the present invention；
Fig. 3 is top view of the present invention；
In figure: 1, blast pipe；2, major trough body；3, slot cover；4, first partition；5, second partition；6, packing layer；7, the first spray
Shower pipe；8, nozzle；9, head, 10, feed opening blind flange are adjusted；11, gasket；12, filler feed opening；13, bolt；14, washer；
15, nut；16, liquid storage tank cover plate；17, reservoir；18, it pumps；19, the second spray tube；20, air-exhausting duct；21, self water feeding pipe
Road；22, discharge of wastewater pipeline；23, the first separate slot；24, the second separate slot；25, third separate slot.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the embodiment of the present invention, automatic water supplement, pH value supplement NaOH solution when low, are controlled by different controllers, and control
Device processed is the common controller of the prior art, and controller used thereby of the present invention is bought in the market.
As shown in Figure 1, Figure 2 and Figure 3, in the embodiment of the present invention, a kind of processing unit of waste gas containing fluoride, including major trough are disclosed
Body 2 and the blast pipe 1 for being mounted on 2 top of major trough body, 2 exterior side wall of major trough body are equipped with the through-hole for connecting reservoir 17,
Major trough body 2 includes separating the multiple separate slots formed by least two partitions, and packing layer 6, and packing layer 6 are equipped in each separate slot
Each separate slot is divided into top spray cleaning layer and lower part solution absorbed layer, partition be equipped with for by exhaust gas be passed through it is another every
The ventilation hole of slot.
Major trough body 2 is separated by first partition 4 and second partition 5 forms the first separate slot 23, the second separate slot 24 and third separate slot
25,4 top of first partition is equipped with ventilation hole, and is located at 6 top of packing layer, and 24 lower part of second partition is equipped with ventilation hole, and is located at
In solution layer below packing layer.
Two sides are equipped with the first nozzle 7 at the top of partition, and the top inside 2 side plate of major trough body is again provided with the first spray woods
Pipe 7, the first nozzle 7 are equipped with nozzle 8.Major trough body 2 and partition are integral solder.
For the setting of blast pipe 1 at 23 top of the first separate slot, 1 bottom of blast pipe is equipped with elbow.The row of being equipped at the top of third separate slot 25
Air hose 20.The second spray tube 19, the second spray tube 19 and the first spray tube 7 is equipped with outside major trough body 2 to connect by adjusting head 9,
The hydrojet angle of replacement and adjusting the second spray tube 19 and the first spray tube 7 easy to repair.Reservoir 17 is equipped with self water feeding
Pipeline 21 and discharge of wastewater pipeline 22.
A method of waste gas containing fluoride is handled using above-mentioned processing unit, comprising the following steps:
S1, waste gas containing fluoride are entered in 23 bottom liquid level of the first separate slot by blast pipe 1, through lye water-bath cooling, gas-liquid contact
Solution absorbed layer carries out solution absorption processing afterwards, enters back into upper packing layers 6 by contact absorption cleaning processing, enters upper layer afterwards
The processing of spray cleaning layer；
S2, after the absorption of step S1, purified treatment, exhaust gas enters the spray of next separate slot by the venthole of partition
Purifying layer enters packing layer after purified treatment and contacts absorption cleaning process layer, enters back into separate slot bottom solution absorbed layer；
S3, step S2 separate slot bottom solution absorbed layer treated exhaust gas enter the solution absorbed layer of next separate slot bottom,
After gas-liquid contact solution absorption processing, a part of exhaust gas ascends into packing layer contact absorption cleaning process layer, returns again to
Into separate slot bottom solution absorbed layer, the venthole that another part gas directly passes through partition enters the solution of next separate slot bottom
Absorbed layer processing；
S4, step S3 is repeated, after exhaust gas enters the processing of the last one separate slot bottom solution absorbed layer, enters back into filler
Layer contacts absorption cleaning processing and the processing of spray cleaning layer, and treated, and exhaust gas is net into subsequent spray process tower by air-exhausting duct
Change processing carries out high altitude discharge after exhaust-gas treatment is up to standard.
Preferred scheme, the solution of solution absorbed layer are aqueous slkali
Reservoir 17 and the liquid storage slot cover 16 being mounted on reservoir 17 are provided with pump 18, second above reservoir 17
Spray tube 19.
Further, reservoir 17 is equipped with self water feeding pipeline 21, is controlled in fluid storage tank by floating ball lever meter
Water level；Reservoir 17 is equipped with discharge of wastewater pipeline 22, and discharge in waste water every 12-15 days is primary, is emitted at waste water processing station
Reason is discharged or is returned to processing unit of the present invention and uses after up to standard.
The preferred method of waste gas containing fluoride is handled using above-mentioned processing unit are as follows: waste gas containing fluoride enters in processing unit, fluorine-containing
Exhaust gas is at through lye water-bath cooling, gas-liquid contact lye absorption processing, the processing of packing layer contact absorption cleaning, spray cleaning
Reason, then carry out second of spray cleaning processing, the processing of packing layer contact absorption cleaning, at lye water-bath gas-liquid contact lye absorption
Then reason carries out third time lye water-bath gas-liquid contact lye absorption processing, the processing of packing layer contact absorption cleaning, spray only again
Change processing, waste gas containing fluoride is through three processes, each process three phases purified treatment, the processing method the following steps are included:
(1) to waste gas containing fluoride processing unit be added a part of water or wastewater treatment it is up to standard after recycle-water, then match 5%NaOH
For solution to liquid level away from 2 bottom 600mm of major trough body, adjusting pH value is 12.
(2) restart exhaust fan after delay 10min after starting pump 18, waste gas containing fluoride is sent at waste gas containing fluoride through blast pipe 1
In the 23 bottom liquid level of the first separate slot for managing device, enters back into top through lye water-bath cooling, gas-liquid contact lye absorption processing and fill out
The bed of material enters spray cleaning processing after contacting absorption cleaning processing；Enter filler after entering back into the processing of 24 spray cleaning of the second separate slot
Layer contact absorption cleaning processing enters back into 24 bottom of the second separate slot, the 25 bottom lye water-bath of third separate slot, the suction of gas-liquid contact lye
Receipts processing；Enter spray cleaning processing after entering back into the contact absorption cleaning processing of 25 packing layer 6 of third separate slot, in processing unit
Waste gas containing fluoride enters back into air-exhausting duct 20 after purified treatment, using subsequent spray process tower purified treatment rear high idle discharge up to standard
Wind.
(3) it when waste gas containing fluoride is handled, is automatically replenished when liquid level is low；NaOH solution is supplemented when pH value is low, guarantees that pH value is
12,.
(4) discharge in waste water every 12-15 days is primary after purified treatment in processing unit for waste gas containing fluoride, discharge of wastewater to waste water
Processing unit of the present invention is discharged or returns to after treating stations processing is up to standard to use.
The specific manufacturing process of the processing unit entirety of waste gas containing fluoride of the invention are as follows:
2 blanking of major trough body, bending, welding production first are welded with reinforcing rib outside slot, aperture on slot, while making blast pipe
1, slot cover 3, first partition 4, second partition 5, filler 6, first spray spray tube 7, feed opening blind flange 10, gasket 11, filler
Feed opening 12, reservoir 17, liquid storage tank cover plate 16, the second spray tube 19, air-exhausting duct 20, self water feeding pipeline 21, discharge of wastewater
Pipeline 22, and buying filler 6, nozzle 8, adjusting head 9, bolt 13, washer 14, nut 15, pump 18；Then, by first partition
4, second partition 5, filler feed opening 12, the second spray tube 19, reservoir 17 are welded into one with major trough body 2；Again, blast pipe 1,
Air-exhausting duct 20 is welded into one with slot cover 3；Again, with adjusting head 9 and the second spray tube 19 after nozzle 8, the first spray tube 7 being welded
It is connected and mixes up 8 angle of nozzle；Again, self water feeding pipeline 21, discharge of wastewater pipeline 22, pump 18, liquid storage slot cover are carried out
Plate 16 and reservoir 17 are installed, the second spray tube 19 and 18 installation of pump；Again, carry out feed opening blind flange 10, gasket 11, with
The connection of filler feed opening 12 bolt 13, washer 14, nut 15 are fixed；Last leak test is repaired, after determining that each section is non-leakage,
It is packed into filler 6, slot cover 3 and major trough body 2 are welded, it is non-leakage.
Further preferred scheme:
Firstly, using waste gas containing fluoride, lye water-bath and gas-liquid contact lye absorption processing, packing layer contact absorb three times
Purified treatment, spray cleaning processing, through three processes, each process three phases solution purification absorption is handled waste gas containing fluoride,
Increase the purified treatment time, absorbs waste gas containing fluoride sufficiently by lye.Major trough body 2 is divided into three separate slots, lye is arranged in bottom
Water-bath area, middle part is packing layer 6, top is spraying layer；
Secondly, 1 bottom of blast pipe is equipped with elbow, for minimum point from slot bottom 100mm, major trough body 2 is divided into three separate slots, is equipped with two
Adverse current first partition 4, second partition 5, slot cover 3 is welded with first partition 4, second partition 5, major trough body 2, air tight, first every
It was equipped with ventilation hole in the middle part of 4 top of plate and 5 bottom of second partition, to prevent waste gas containing fluoride from running helter-skelter in processing unit, to guarantee
Waste gas containing fluoride processing through lye water-bath cooling, gas-liquid contact lye absorption processing by entering back into 23 bottom liquid level of the first separate slot
Upper packing layers enter spray cleaning processing after contacting absorption cleaning processing；It is laggard to enter back into the processing of 24 spray cleaning of the second separate slot
Enter packing layer contact absorption cleaning processing and enters back into 24 bottom of the second separate slot, the 25 bottom lye water-bath of third separate slot, gas-liquid contact
Lye absorption processing；Enter spray cleaning processing after entering back into the contact absorption cleaning processing of 25 packing layer of third separate slot, is handling
Waste gas containing fluoride enters subsequent spray process tower purified treatment by air-exhausting duct 20 after being disposed in device；
Thirdly, 4 bottom of first partition is equipped with Φ 50mm and crosses water through-hole, and reservoir 17 is equipped with through-hole with major trough body 2,
And liquid pass hole, to guarantee that three separate slots are consistent with 17 liquid level of reservoir；
Finally, reservoir 17 is equipped with self water feeding pipeline 21, floating ball lever meter controls the water level in fluid storage tank；Equipped with useless
Water discharge spout road 22.
In conclusion apparatus of the present invention include major trough body being divided into multiple separate slots by least two partitions, then pass through in place
Venthole is equipped in the top of the partition of different separate slots or lower part, it is ensured that exhaust gas can pass through multiple process purified treatments, and
And the mating reaction of filler and partition fully absorbs processing so that waste gas containing fluoride is sufficiently contacted with lye, can efficiently, stablize,
Reliable purifying waste gas containing fluorine improves purification efficiency and exhaust-gas treatment as a result, mitigating subsequent processing burden, handles waste gas containing fluoride
Exhaust gas discharge afterwards is lower than 7mg/m3, reach GB21900-2008 discharge standard, the processing unit of waste gas containing fluoride of the present invention has knot
The feature that structure is simple, performance is stable；
Processing method of the present invention is reliable, after waste gas containing fluoride enters processing unit, carries out lye water-bath cooling first, again through gas
Liquid contact lye absorption is handled, again through packing layer contact absorption cleaning processing and spray cleaning processing, and repeated multiple times progress is above-mentioned
Processing absorbs the abundant lye of waste gas containing fluoride, improves waste gas containing fluoride purification efficiency, waste gas containing fluoride high treating effect, ideal；And
Water can also recycle after wastewater treatment is up to standard, energy saving；Liquid level and solution pH value in processing unit are certainly
Dynamic control, guarantees the concentration of lye and the stabilization of pH value, improves exhaust purification efficiency.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of processing unit of waste gas containing fluoride, exists including major trough body and the blast pipe being mounted at the top of major trough body, feature
In: the major trough body exterior side wall is equipped with the through-hole for connecting reservoir, and major trough body includes separating shape by least two partitions
At multiple separate slots, be equipped with packing layer in each separate slot, and packing layer by each separate slot be divided into top spray cleaning layer and
Lower part solution absorbed layer；First partition top positioned at the air inlet pipe end is equipped with the ventilation hole being located above packing layer, at it
The lower part of remaining partition is equipped with the ventilation hole being located in solution absorbed layer, and the ventilation hole is used to exhaust gas being passed through another separate slot.
2. processing unit according to claim 1, it is characterised in that: the major trough body by first partition and second partition every
Open form is at the first separate slot, the second separate slot and third separate slot.
3. processing unit according to claim 1, it is characterised in that: two sides are equipped with the first spray tube at the top of the partition,
Top inside major trough body side plate is again provided with the first spray tube.
4. processing unit according to claim 1 or 2, it is characterised in that: the major trough body is integral solder with partition.
5. processing unit according to claim 2, it is characterised in that: the blast pipe is arranged on first separate slot top
Portion, air inlet bottom of the tube are equipped with elbow.
6. processing unit according to claim 2, it is characterised in that: be equipped with air-exhausting duct at the top of the third separate slot.
7. processing unit according to claim 3, it is characterised in that: be equipped with the second spray tube, institute outside the major trough body
The second spray tube and the first spray tube are stated by adjusting head connection.
8. processing unit according to claim 1, it is characterised in that: the reservoir is equipped with self water feeding pipeline and gives up
Water discharge spout road.
9. a kind of method using any processing unit processing waste gas containing fluoride of claim 1-8, which is characterized in that including
Following steps:
S1, waste gas containing fluoride are entered in the first separate slot bottom liquid level by blast pipe, and solution is inhaled after lye water-bath cooling, gas-liquid contact
It receives layer and carries out solution absorption processing, enter back into upper packing layers by contact absorption cleaning processing, enter upper layer spray cleaning afterwards
Layer processing；
S2, after the absorption of step S1, purified treatment, exhaust gas enters the spray cleaning of next separate slot by the venthole of partition
Layer, packing layer is entered after purified treatment and contacts absorption cleaning process layer, enters back into separate slot bottom solution absorbed layer；
S3, step S2 separate slot bottom solution absorbed layer treated exhaust gas enter the solution absorbed layer of next separate slot bottom, pass through
After gas-liquid contact solution absorption processing, a part of exhaust gas ascends into packing layer contact absorption cleaning process layer, returns again to entrance
Separate slot bottom solution absorbed layer, the solution that the venthole that another part gas directly passes through partition enters next separate slot bottom absorb
Layer processing；
S4, step S3 is repeated, after exhaust gas enters the processing of the last one separate slot bottom solution absorbed layer, enters back into packing layer and connect
Absorption cleaning processing and the processing of spray cleaning layer are touched, treated, and exhaust gas is entered at subsequent spray process tower purification by air-exhausting duct
Reason carries out high altitude discharge after exhaust-gas treatment is up to standard.
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| CN108854487B (en) * | 2018-09-06 | 2024-03-22 | 常州纺织服装职业技术学院 | Arsine/phosphane waste gas treatment device and arsine/phosphane waste gas treatment method |
| CN111744347A (en) * | 2020-07-02 | 2020-10-09 | 天津市英格环保科技有限公司 | Waste gas treatment process for threonine production |
| CN112495138A (en) * | 2020-12-03 | 2021-03-16 | 天长市富信电子有限公司 | Waste gas purification device for screen line production |
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| CN104740985A (en) * | 2013-12-26 | 2015-07-01 | 新地能源工程技术有限公司 | Fluorine-containing exhaust gas treatment device and method |
| CN204684930U (en) * | 2015-04-22 | 2015-10-07 | 陈丕显 | A kind of alkali lye spray acid-fume absorber |
| CN205216538U (en) * | 2015-12-18 | 2016-05-11 | 广州巨邦环保工程设备有限公司 | Spray and adsorb integrated device |
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| CN106268232A (en) | 2017-01-04 |
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