CN108392910A - A kind of filter case phosphatization tail gas comprehensive recovery system - Google Patents
A kind of filter case phosphatization tail gas comprehensive recovery system Download PDFInfo
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- CN108392910A CN108392910A CN201810103072.7A CN201810103072A CN108392910A CN 108392910 A CN108392910 A CN 108392910A CN 201810103072 A CN201810103072 A CN 201810103072A CN 108392910 A CN108392910 A CN 108392910A
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- absorption tower
- tower
- tail gas
- phosphatization
- dust
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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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
- B01D53/002—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 condensation
-
- 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
-
- 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
- B01D53/1456—Removing acid components
-
- 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
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/402—Dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
Abstract
The invention discloses a kind of filter case phosphatization tail gas comprehensive recovery systems, it is related to filter production technical field, is mainly made of dust-extraction unit, recovery tower, first grade absorption tower, two-level absorption tower, first jet, second nozzle, the first pinhole plate, packing layer and lye tank (vat) etc..The present invention removes the dust in phosphatization tail gas by dust-extraction unit first, prevents exhaust pipe road from being blocked because long-time uses, while additionally aiding subsequent vent gas treatment；Then phosphatization tail gas is carried out by recovery tower spraying sour processing, since using the acid mist in acid solution recycling phosphatization tail gas, the solution after recycling is circularly used for the phosphatization of filter case, saves production cost and resource；Phosphatization tail gas by recovery processing removes remaining acid mist and nitrogen dioxide in tail gas by first grade absorption tower；The nitric oxide in tail gas is removed finally by two-level absorption tower；Tail gas clean-up is thorough, and the discharge standard of national regulation is met after purification.
Description
Technical field
The present invention relates to filter production technical field more particularly to a kind of filter case phosphatization tail gas synthetical recovery systems
System.
Background technology
Filter needs to carry out phosphatization to the surface of shell in process of production, to form phosphating coat, protects metal shell,
Metal is prevented to be corroded.It in filter case phosphatization, needs shell immersing phosphating solution, since phosphating solution is acid dilute water
Solution will produce a large amount of acid mist during phosphatization.In addition, also will produce nitrogen oxides during phosphatization, no
Only there is certain toxicity, be unfavorable for producers' health, also very big to the detrimental effect of environment, it is both the master to form acid rain
One of substance is wanted, and forms an important factor of the important substance of photochemical fog and consumption O3 in air.Therefore it needs
To being discharged again after phosphatization vent gas treatment, existing phosphatization exhaust gas cleaner is sprayed to tail gas, cannot be right
The sour gas of volatilization is recycled, and causes the wasting of resources, and tail gas clean-up effect is poor, is unfavorable for environmental protection.How one is designed
Kind good purification can be that the present invention to be solved to the filter case phosphatization tail gas comprehensive recovery system that acid mist is recycled
The technical issues of.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of good purification, can be to filter that acid mist is recycled
Shell phosphatization tail gas comprehensive recovery system.
The present invention is realized by following technological means solves above-mentioned technical problem：
A kind of filter case phosphatization tail gas comprehensive recovery system, including dust-extraction unit, recovery tower, first grade absorption tower and two level are inhaled
Tower is received, the dust-extraction unit includes dust-removing box, and the lower part of the dust-removing box is provided with ash bucket, and the side wall of the ash bucket is set
It is equipped with dust-extraction unit air inlet, the dust-removing box is internally provided with a partition board being laterally arranged, and the partition board is by dedusting
Babinet is divided into upper chamber and lower chambers, and several filter bags are equipped on the lower surface of the partition board, and the upper end of the dust-removing box is set
It is equipped with dust-extraction unit gas outlet, the dust-extraction unit gas outlet is connected to upper chamber, and the dust-extraction unit gas outlet passes through
Pipeline is connected with air-introduced machine, and recovery tower air inlet is provided on the recovery tower, and the air-introduced machine passes through pipeline and recycling
Tower air inlet is connected to, and is provided with condenser coil on the recovery tower, acid solution nozzle, institute are provided in the recovery tower
The acid solution nozzle stated is connected to external liquid supply pipe, and several first pin holes setting up and down are provided in the recovery tower
Plate, the recovery tower air inlet are located at the lower part of the first pinhole plate of the lowermost, and the bottom of the recovery tower is connected with collection
Device is provided with recovery tower gas outlet at the top of the recovery tower, first grade absorption tower air inlet is provided on the first grade absorption tower,
The recovery tower gas outlet is connected by pipeline with first grade absorption tower air inlet, and the first grade absorption tower is internally provided with clear water
Nozzle, the clear water nozzle are connected to external water system, and the inside of the first grade absorption tower is additionally provided with packing layer, described
Packing layer is located at the lower part of clear water nozzle, and the bottom of the first grade absorption tower is equipped with the first collecting tank, the first order absorption
For tower air inlet between packing layer and the first collecting tank, the inside of the first grade absorption tower is also equipped with fixed plate, described solid
The upper end of fixed board is equipped with lye tank (vat), the both ends of the fixed plate be all arranged it is several cross tracheaes, described one end for crossing tracheae and solid
The lower surface of fixed board is connected to, and the other end for crossing tracheae sinks to lye trench bottom, and the top of the first grade absorption tower is provided with
First grade absorption tower gas outlet is provided with two-level absorption tower air inlet, the first grade absorption tower gas outlet on the two-level absorption tower
Connected with two-level absorption tower air inlet by pipeline, be provided with urea nozzle in the two-level absorption tower, the urea nozzle and
The connection of external urea liquid supply pipe, the two-level absorption tower are provided with several setting up and down the in urea nozzle lower position
The bottom of two pinhole plates, the two-level absorption tower is provided with the second collecting tank, and the two-level absorption tower air inlet is located at most lower
Between second pinhole plate and the second collecting tank at end, exhaust outlet is provided at the top of the two-level absorption tower.
Preferably, a kind of filter case phosphatization tail gas comprehensive recovery system, if being provided on the partition board
Dry venthole, it is corresponding on each venthole that a snorkel being vertically arranged, the lower end of the snorkel are installed
It is connected to filter bag, the upper end of the snorkel is connected to upper chamber.
Preferably, a kind of filter case phosphatization tail gas comprehensive recovery system, the packing layer are PP multi-panels
The upper and lower surface of hollow ball packing layer, packing layer is fitted with third pinhole plate.
Preferably, a kind of filter case phosphatization tail gas comprehensive recovery system, the first grade absorption tower and two level
The tower body on absorption tower be all from the bottom to top by the sequentially connected several sections of compositions of flange, and the tower body be polyvinyl chloride, it is poly-
It is all covered with polyurea anti-corrosion layer on the inner wall of propylene or glass steel material, first collecting tank and the second collecting tank.
Preferably, a kind of filter case phosphatization tail gas comprehensive recovery system is the acid solution nozzle, clear
Sprinkler head and urea nozzle are all spiral nozzle.
The advantage of the invention is that：The filter case phosphatization tail gas comprehensive recovery system of the present invention is filled by dedusting first
The dust removed in phosphatization tail gas is set, prevents exhaust pipe road from being blocked because long-time uses, while additionally aiding subsequent
Vent gas treatment；Then phosphatization tail gas is carried out by recovery tower spraying sour processing, due to using in acid solution recycling phosphatization tail gas
Acid mist, the solution after recycling is circularly used for the phosphatization of filter case, saves production cost and resource；By recovery processing
Phosphatization tail gas pass through first grade absorption tower remove tail gas in remaining acid mist and nitrogen dioxide；It is removed finally by two-level absorption tower
Nitric oxide in tail gas；Tail gas clean-up is thorough, and the discharge standard of national regulation is met after purification
Further, packing layer is PP polyhedron empty ball packing layers, improves the contact area of liquid and tail gas in packing layer, makes tail
Gas and liquid come into full contact in packing layer, improve the assimilation effect of liquid, and the upper and lower surface of packing layer all installs the second pin hole
Plate, lower part pinhole plate have gas distribution effect, top pinhole plate to play the role of water distribution in tail gas, and tail gas and liquid is made to divide in filled layer
Cloth is uniform, enhances the absorbability of liquid.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram at lye tank (vat) of the present invention.
Specific implementation mode
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
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
A kind of filter case phosphatization tail gas comprehensive recovery system, including dust-extraction unit, recovery tower 1,2 and of first grade absorption tower
Two-level absorption tower 3, the dust-extraction unit include dust-removing box 4, and the lower part of the dust-removing box 4 is provided with ash bucket 5, the ash
The side wall of bucket 5 is provided with dust-extraction unit air inlet 6, and the dust-removing box 4 is internally provided with a partition board 7 being laterally arranged, institute
Dust-removing box is divided into upper chamber 8 and lower chambers 9 by the partition board 7 stated, and several filter bags 10 are equipped on the lower surface of the partition board 7,
The upper end of the dust-removing box 4 is provided with dust-extraction unit gas outlet 11, and the dust-extraction unit gas outlet 11 and upper chamber 8 connect
Logical, the dust-extraction unit gas outlet 11 is connected by pipeline and air-introduced machine 12, be provided on the recovery tower 1 recovery tower into
Gas port 13, the air-introduced machine 12 are connected to by pipeline with recovery tower air inlet 13, and condensate pans are provided on the recovery tower 1
Pipe 14, acid solution nozzle 15 is provided in the recovery tower 1, and the acid solution nozzle 15 and external liquid supply pipe connect
It is logical, several first pinhole plates 16 setting up and down are provided in the recovery tower 1, the recovery tower air inlet 13 is located at most
The bottom of the lower part of first pinhole plate 16 of lower end, the recovery tower 1 is connected with collector 17, and the top of the recovery tower 1 is set
It is equipped with recovery tower gas outlet 18, first grade absorption tower air inlet 19, the recovery tower gas outlet are provided on the first grade absorption tower 2
18 are connected by pipeline and first grade absorption tower air inlet 19, and the first grade absorption tower 2 is internally provided with clear water nozzle 20, described
Clear water nozzle 20 is connected to external water system, and the inside of the first grade absorption tower 2 is additionally provided with packing layer 21, the filler
Layer 21 is located at the lower part of clear water nozzle 20, and the bottom of the first grade absorption tower 2 is equipped with the first collecting tank 22, and the level-one is inhaled
Tower air inlet 19 is received between packing layer 21 and the first collecting tank 22, the inside of the first grade absorption tower 2 is also equipped with fixation
The upper end of plate 23, the fixed plate 23 is equipped with lye tank (vat) 24, and several tracheaes 25 excessively, institute is all arranged in the both ends of the fixed plate 23
The one end for stating tracheae 25 is connected to the lower surface of fixed plate 23, and the other end for crossing tracheae 25 sinks to 24 bottom of lye tank (vat),
The top of the first grade absorption tower 2 is provided with first grade absorption tower gas outlet 26, and two level absorption is provided on the two-level absorption tower 3
Tower air inlet 27, the first grade absorption tower gas outlet 26 are connected by pipeline and two-level absorption tower air inlet 27, and the two level is inhaled
It receives and is provided with urea nozzle 28 in tower 3, the urea nozzle 28 is connected to external urea liquid supply pipe, the two-level absorption tower
3 are provided with several second pinhole plates 29 setting up and down in 28 lower position of urea nozzle, and the bottom of the two-level absorption tower 3 is set
It is equipped with the second collecting tank 30, the two-level absorption tower air inlet 27 is located at the lowermost the second pinhole plate 29 and the second collecting tank
Between 30, the top of the two-level absorption tower 3 is provided with exhaust outlet 31.
Filter phosphatization tail gas enters the lower chambers of dust-extraction unit from dust-extraction unit air inlet, laggard by sock filtration
Enter upper chamber, then sent to recovery tower by air-introduced machine, in recovery tower, by acid solution nozzle to phosphatization tail gas spray acid
Property solution, absorb the acid mist in phosphatization tail gas, condenser pipe be set outside recovery tower, contribute to the recycling of acid mist, then to spray
Solution afterwards is collected using collector, and the phosphatization tail gas handled by recovery tower enters first grade absorption tower, in first order absorption
In tower, phosphatization tail gas first passes around three-level absorption, and the first order is that the water of filled layer lower part pinhole plate outflow inhales the spray of tail gas
It receives, the second level is absorption of the water in filled layer to phosphatization tail gas, and the third level is spray-absorption of the clear water nozzle to tail gas, is passed through
After water absorbs the three-level of phosphatization tail gas, the content of acid mist and nitrogen dioxide substantially reduces in phosphatization tail gas, is absorbed by three-level
Phosphatization tail gas afterwards is passed through in lye tank (vat), thoroughly removes acid mist and nitrogen dioxide in phosphatization tail gas, net by first grade absorption tower
Tail gas after change is passed through two-level absorption tower, and the urea liquid sprayed by second nozzle carries out the nitric oxide in phosphatization tail gas
It absorbs, thoroughly removes the nitrogen oxides in phosphatization tail gas, keep phosphatization tail gas clean-up thorough；The filter case phosphatization tail of the present invention
Gas processing system removes the dust in phosphatization tail gas by dust-extraction unit first, prevents exhaust pipe road due to long-time uses
It blocks, while additionally aiding subsequent vent gas treatment；Then the acid mist and nitrogen dioxide in tail gas are removed by first grade absorption tower；
The nitric oxide in tail gas is removed finally by two-level absorption tower；Tail gas clean-up is thorough, and the discharge of national regulation is met after purification
Standard.
Preferably, several ventholes are provided on the partition board 7（It is not drawn into figure）, on each venthole
Corresponding to be equipped with a snorkel 32 being vertically arranged, the lower end of the snorkel 32 is connected to filter bag 10, the snorkel 32
Upper end be connected to upper chamber 8.
Upper chamber is set to be connected to lower chambers by snorkel, filter bag is mounted on snorkel, simple in structure, will not be blocked up
Plug, filtration result are good.
Preferably, the packing layer 21 is PP polyhedron empty ball packing layers, and the upper and lower surface of packing layer 21 is fitted with
Third pinhole plate 33.
Packing layer is PP polyhedron empty ball packing layers, improves the contact area of liquid and tail gas in packing layer, makes tail gas
It being come into full contact in packing layer with liquid, improves the assimilation effect of liquid, the upper and lower surface of packing layer all installs third pinhole plate,
Lower part pinhole plate has gas distribution effect, top pinhole plate to play the role of water distribution in tail gas, and tail gas and liquid is made to be distributed in filled layer
Uniformly, enhance the absorbability of liquid.
Preferably, the tower body of the first grade absorption tower 2 and two-level absorption tower 3 is all to be sequentially connected from the bottom to top by flange
Several sections of compositions, and the tower body is polyvinyl chloride, polypropylene or glass steel material, first collecting tank and the second liquid collecting
Polyurea anti-corrosion layer is all covered on the inner wall of slot.
It is all covered with polyurea anti-corrosion layer on the inner wall of tower body intensity height, good corrosion resistance, the first collecting tank and the second collecting tank,
Reinforce the anticorrosion effect of collecting tank, improves service life of equipment.
Preferably, the acid solution nozzle 15, clear water nozzle 20 and urea nozzle 28 are all spiral nozzle.
Clear water nozzle and urea nozzle are all set as spiral nozzle, and the uniformity and spray area of hydrojet, Jin Erti can be improved
High phosphatization tail gas and the contact area for spraying liquid, strengthen the assimilation effect of liquid.
The filter case phosphatization tail gas comprehensive recovery system of the present invention is removed by dust-extraction unit in phosphatization tail gas first
Dust, prevent exhaust pipe road from being blocked because long-time uses, while additionally aiding subsequent vent gas treatment；Then pass through
Recovery tower carries out phosphatization tail gas to spray sour processing, molten after recycling due to recycling the acid mist in phosphatization tail gas using acid solution
Liquid is circularly used for the phosphatization of filter case, saves production cost and resource；Phosphatization tail gas by recovery processing passes through one
Grade absorption tower removes remaining acid mist and nitrogen dioxide in tail gas；The oxidation in tail gas is removed finally by two-level absorption tower
Nitrogen；Tail gas clean-up is thorough, and the discharge standard of national regulation is met after purification；Further, packing layer is PP polyhedron empty ball fillers
Layer improves the contact area of liquid and tail gas in packing layer, tail gas and liquid is made to be come into full contact in packing layer, improves liquid
Assimilation effect, the upper and lower surface of packing layer all installs the second pinhole plate, and lower part pinhole plate has gas distribution effect, upper needle to tail gas
Orifice plate plays the role of water distribution, and tail gas and liquid is made to be evenly distributed in filled layer, enhances the absorbability of liquid.
It should be noted that herein, if there are first and second or the like relational terms to be used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby 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 the process, method, article or apparatus that includes 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, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. a kind of filter case phosphatization tail gas comprehensive recovery system, it is characterised in that：Including dust-extraction unit, recovery tower, level-one
Absorption tower and two-level absorption tower, the dust-extraction unit include dust-removing box, and the lower part of the dust-removing box is provided with ash bucket, institute
The side wall for stating ash bucket is provided with dust-extraction unit air inlet, and the dust-removing box is internally provided with a partition board being laterally arranged, institute
Dust-removing box is divided into upper chamber and lower chambers by the partition board stated, and several filter bags are equipped on the lower surface of the partition board, described to remove
The upper end of dirt babinet is provided with dust-extraction unit gas outlet, and the dust-extraction unit gas outlet is connected to upper chamber, the dedusting
Device gas outlet is connected by pipeline with air-introduced machine, and recovery tower air inlet, the air-introduced machine are provided on the recovery tower
It is connected to recovery tower air inlet by pipeline, condenser coil is provided on the recovery tower, is provided in the recovery tower
Acid solution nozzle, the acid solution nozzle are connected to external liquid supply pipe, are provided in the recovery tower above and below several
The first pinhole plate being arranged, the recovery tower air inlet are located at the lower part of the first pinhole plate of the lowermost, the recovery tower
Bottom is connected with collector, and recovery tower gas outlet is provided at the top of the recovery tower, one is provided on the first grade absorption tower
Grade absorption tower air inlet, the recovery tower gas outlet are connected by pipeline with first grade absorption tower air inlet, the first grade absorption tower
Be internally provided with clear water nozzle, the clear water nozzle is connected to external water system, and the inside of the first grade absorption tower is also set
It is equipped with packing layer, the packing layer is located at the lower part of clear water nozzle, and the bottom of the first grade absorption tower is equipped with the first liquid collecting
Slot, the first grade absorption tower air inlet between packing layer and the first collecting tank, also pacify by the inside of the first grade absorption tower
Equipped with fixed plate, the upper end of the fixed plate is equipped with lye tank (vat), and several tracheaes excessively are all arranged in the both ends of the fixed plate, described
The one end for crossing tracheae is connected to the lower surface of fixed plate, and the other end for crossing tracheae sinks to lye trench bottom, and the level-one is inhaled
The top for receiving tower is provided with first grade absorption tower gas outlet, and two-level absorption tower air inlet is provided on the two-level absorption tower, described
First grade absorption tower gas outlet is connected by pipeline with two-level absorption tower air inlet, and urea spray is provided in the two-level absorption tower
Head, the urea nozzle are connected to external urea liquid supply pipe, and the two-level absorption tower is arranged in urea nozzle lower position
There are several second pinhole plates setting up and down, the bottom of the two-level absorption tower to be provided with the second collecting tank, the two level is inhaled
It receives tower air inlet to be located between the second pinhole plate of the lowermost and the second collecting tank, the row of being provided at the top of the two-level absorption tower
Gas port.
2. a kind of filter case phosphatization tail gas comprehensive recovery system according to claim 1, it is characterised in that：Described
It is provided with several ventholes on partition board, it is corresponding on each venthole that a snorkel being vertically arranged, institute are installed
The lower end for stating snorkel is connected to filter bag, and the upper end of the snorkel is connected to upper chamber.
3. a kind of filter case phosphatization tail gas comprehensive recovery system according to claim 1, it is characterised in that：Described
Packing layer is PP polyhedron empty ball packing layers, and the upper and lower surface of packing layer is fitted with third pinhole plate.
4. a kind of filter case phosphatization tail gas comprehensive recovery system according to claim 1, it is characterised in that：Described one
The tower body of grade absorption tower and two-level absorption tower is all from the bottom to top by the sequentially connected several sections of compositions of flange, and the tower body
For polyvinyl chloride, polypropylene or glass steel material, it is anti-that polyureas is all covered on the inner wall of first collecting tank and the second collecting tank
Rotten layer.
5. a kind of filter case phosphatization tail gas comprehensive recovery system according to claim 1, it is characterised in that：Described
Acid solution nozzle, clear water nozzle and urea nozzle are all spiral nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810103072.7A CN108392910B (en) | 2018-02-01 | 2018-02-01 | Comprehensive recovery system for phosphorization tail gas of filter shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810103072.7A CN108392910B (en) | 2018-02-01 | 2018-02-01 | Comprehensive recovery system for phosphorization tail gas of filter shell |
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| Publication Number | Publication Date |
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| CN108392910A true CN108392910A (en) | 2018-08-14 |
| CN108392910B CN108392910B (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810103072.7A Active CN108392910B (en) | 2018-02-01 | 2018-02-01 | Comprehensive recovery system for phosphorization tail gas of filter shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230801A (en) * | 2021-05-14 | 2021-08-10 | 吕存英 | Dust clearance system based on artificial intelligence |
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| CN203564953U (en) * | 2013-09-07 | 2014-04-30 | 天津万广科技有限公司 | Acid mist purification tower |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5512072A (en) * | 1994-12-05 | 1996-04-30 | General Electric Environmental Services, Inc. | Flue gas scrubbing apparatus |
| KR20030088226A (en) * | 2002-05-13 | 2003-11-19 | (주)대성그린테크 | Biofilter system for offensive odor and volatile oraganic compounds treatment |
| CN203155025U (en) * | 2013-03-19 | 2013-08-28 | 彭兰娟 | Smoke dust removal device |
| CN203564953U (en) * | 2013-09-07 | 2014-04-30 | 天津万广科技有限公司 | Acid mist purification tower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230801A (en) * | 2021-05-14 | 2021-08-10 | 吕存英 | Dust clearance system based on artificial intelligence |
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| CN108392910B (en) | 2020-04-14 |
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