CN219804453U - Tail gas treatment device for ammonium polyphosphate production line - Google Patents
Tail gas treatment device for ammonium polyphosphate production line Download PDFInfo
- Publication number
- CN219804453U CN219804453U CN202321263192.6U CN202321263192U CN219804453U CN 219804453 U CN219804453 U CN 219804453U CN 202321263192 U CN202321263192 U CN 202321263192U CN 219804453 U CN219804453 U CN 219804453U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- pipeline
- dust
- acid
- production line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004114 Ammonium polyphosphate Substances 0.000 title claims abstract description 27
- 235000019826 ammonium polyphosphate Nutrition 0.000 title claims abstract description 27
- 229920001276 ammonium polyphosphate Polymers 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000005406 washing Methods 0.000 claims abstract description 62
- 239000002253 acid Substances 0.000 claims abstract description 61
- 239000000428 dust Substances 0.000 claims abstract description 43
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 35
- 238000003860 storage Methods 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000007921 spray Substances 0.000 claims description 44
- 230000001502 supplementing effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000009469 supplementation Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 63
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000005554 pickling Methods 0.000 description 4
- 101000793686 Homo sapiens Azurocidin Proteins 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a tail gas treatment device for an ammonium polyphosphate production line, which comprises the following components: the collecting unit comprises a settling chamber, a collecting bin and a storage bin which are sequentially connected from top to bottom, wherein the settling chamber is used for collecting dust-containing tail gas from an ammonium polyphosphate production line, and the collecting bin and the storage bin are respectively used for collecting and storing dust in the dust-containing tail gas; a washing unit comprising a first washing column, a second washing column and an acid storage tank; the connecting unit comprises an exhaust pipeline, a first connecting pipeline, a second connecting pipeline and a third connecting pipeline. The utility model firstly carries out dust removal and collection treatment on dust-containing tail gas, carries out secondary acid washing on the tail gas after dust removal through a washing unit, removes ammonia in the tail gas, and discharges the tail gas after detection meets the discharge standard. The separation of dust in the dust-containing tail gas is realized, ammonia is only removed from the tail gas part, the dust-containing tail gas is prevented from contacting water to produce ammonia viscous liquid and causing dust to block a pipeline, and the ammonia removal efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of tail gas treatment, in particular to a tail gas treatment device of an ammonium polyphosphate production line.
Background
In the production process of ammonium polyphosphate, in order to ensure that ammonium polyphosphate is not decomposed under high temperature conditions, especially in the production of an ammonium polyphosphate type II flame retardant product, in order to ensure that the polymerization degree reaches more than 1000 and ideal type II crystallization, stable ammonia pressure and flow in a reaction kettle are required to be maintained, and ammonia is toxic and harmful and flammable and explosive gas, so that at the end of the reaction, yu An in the reaction kettle is required to be replaced by nitrogen, and during the replacement, the treatment of tail gas consisting of nitrogen, ammonia and ammonium polyphosphate powder is involved. The common treatment is carried out by arranging one or more water seals, but a large amount of viscous liquid of ammonium polyphosphate materials and ammonia is produced, the viscous liquid is not easy to treat, ammonium polyphosphate powder is easy to be carried to a pipeline for deposition, the pipeline is blocked, and the treatment efficiency is lower.
Disclosure of Invention
The utility model aims to provide a tail gas treatment device for an ammonium polyphosphate production line, which is characterized in that dust in dust-containing tail gas is collected to form dust-free tail gas through arranging a collecting unit and a washing unit, and the dust-free tail gas is transmitted into the washing unit to be subjected to acid washing to remove ammonia gas and then is discharged in a qualified mode, so that the problems of pipeline blockage and lower treatment efficiency caused by the fact that a viscous liquid is generated to carry ammonium polyphosphate powder to pipeline deposition by using a water seal for treatment in the prior art are solved.
In order to solve the technical problems, the utility model adopts the following scheme:
an ammonium polyphosphate production line tail gas treatment device, comprising:
the collecting unit comprises a settling chamber, a collecting bin and a storage bin which are sequentially connected from top to bottom, wherein the settling chamber is used for collecting dust-containing tail gas from an ammonium polyphosphate production line, and the collecting bin and the storage bin are respectively used for collecting and storing dust in the dust-containing tail gas;
a washing unit comprising a first washing column, a second washing column and an acid storage tank;
the connecting unit comprises an exhaust pipeline, a first connecting pipeline, a second connecting pipeline and a third connecting pipeline;
the first connecting pipeline, the second connecting pipeline and the third connecting pipeline are respectively communicated with the settling chamber, the first washing tower, the second washing tower and the exhaust pipeline in sequence, the tail gas which is dedusted in the settling chamber is sequentially transmitted to the first washing tower and the second washing tower, the acid storage tank is respectively used for providing acid liquor for the dedusting tail gas in the first washing tower and the second washing tower for washing, and the washed tail gas is transmitted to the exhaust pipeline for exhaust through the third connecting pipeline.
Preferably, a plurality of upper baffle plates and lower baffle plates are sequentially arranged at the top and the bottom of the settling chamber, so that an S-shaped flow direction is formed inside the settling chamber.
Preferably, a pneumatic jar is arranged on the outer peripheral surface of the collecting bin, a pneumatic butterfly valve is arranged at the bottom of the collecting bin and the bottom of the storing bin, and the pneumatic butterfly valve at the bottom of the collecting bin is communicated with the top of the storing bin.
Preferably, the connection unit further comprises a first spray pipeline and a first spray pump, the demister and the atomizing nozzle are arranged in the first washing tower from top to bottom, two ends of the first spray pipeline are respectively communicated with the atomizing nozzle and the acid liquid in the acid storage tank, and the first spray pump drives the acid liquid to be transmitted into the first spray pipeline to enter the atomizing nozzle.
Preferably, the connection unit further comprises a second spray pipeline and a second spray pump, the demister and the atomizing nozzle are arranged in the second washing tower from top to bottom, two ends of the second spray pipeline are respectively communicated with the atomizing nozzle and the acid liquid in the acid storage tank, and the second spray pump drives the acid liquid to be transmitted into the second spray pipeline to enter the atomizing nozzle.
Preferably, a pneumatic three-way valve is provided in the second spray pipe adjacent to the atomizer head, two of the ports of the pneumatic three-way valve being in communication with the second spray pipe.
Preferably, an induced draft fan is arranged at the joint of the third connecting pipeline and the exhaust pipeline, an ammonia sensor is arranged on the exhaust pipeline, the induced draft fan is used for guiding tail gas in the third connecting pipeline to be discharged to the exhaust pipeline, and the ammonia sensor is used for detecting ammonia content in tail gas of the exhaust pipeline.
Preferably, the washing unit further comprises a magnetic flap level gauge for detecting the liquid level of the acid storage tank and an acid supplementing pneumatic valve for controlling acid liquor supplementation of the acid storage tank.
The utility model has the beneficial effects that: in the tail gas treatment device for the polyphosphoric acid production line, the collection unit and the washing unit are arranged, dust-containing tail gas is firstly subjected to dust removal and collection treatment, the dust-removed tail gas is subjected to secondary acid washing by the washing unit, ammonia in the tail gas is removed, and the tail gas is discharged after being detected to meet the discharge standard. The separation of dust in the dust-containing tail gas is realized, ammonia is only removed from the tail gas part, the dust-containing tail gas is prevented from contacting water to produce ammonia viscous liquid and causing dust to block a pipeline, and the ammonia removal efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Reference numerals: 1-collecting unit, 10-settling chamber, 101-upper baffle, 102-lower baffle, 11-collecting bin, 111-pneumatic jar, 112-pneumatic butterfly valve, 12-storing bin, 2-washing unit, 20-first washing tower, 21-second washing tower, 22-acid storage tank, 221-on-line densitometer, 222-first spray pump, 223-second spray pump, 224-liquid seal baffle, 225-pneumatic three-way valve, 226-magnetic flap level gauge, 227-acid supplementing pneumatic valve, 23-atomizer, 24-foam remover, 3-connecting unit, 30-exhaust pipeline, 301-ammonia sensor, 31-first connecting pipeline, 32-second connecting pipeline, 33-third connecting pipeline, 34-first spray pipeline, 35-second spray pipeline, 36-induced draft fan, 37-tail gas diffusion cap, 4-acousto-optic alarm.
Detailed Description
The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
An embodiment of the utility model is an apparatus for treating tail gas of an ammonium polyphosphate production line, as shown in fig. 1, comprising: the collecting unit 1 comprises a settling chamber 10, a collecting bin 11 and a storage bin 12 which are sequentially connected from top to bottom, wherein the settling chamber 10 is used for collecting dust-containing tail gas (in the direction shown by an arrow A) from an ammonium polyphosphate production line, and the collecting bin 11 and the storage bin 12 are respectively used for collecting and storing dust in the dust-containing tail gas; a washing unit 2 including a first washing tower 20, a second washing tower 21, and an acid storage tank 22; a connection unit 3 including an exhaust duct 30, a first connection duct 31, a second connection duct 32, and a third connection duct 33; the first connecting pipeline 31, the second connecting pipeline 32 and the third connecting pipeline 33 are respectively and sequentially communicated with the settling chamber 10, the first washing tower 20, the second washing tower 21 and the exhaust pipeline 30, the tail gas which is dedusted in the settling chamber 10 is sequentially transmitted to the first washing tower 20 and the second washing tower 21, the acid storage tank 22 is respectively used for providing acid liquor for the dedusting tail gas in the first washing tower 20 and the second washing tower 21 for washing, and the washed tail gas is transmitted to the exhaust pipeline 30 through the third connecting pipeline 33 for discharging.
Specifically, negative pressure is arranged in the settling chamber 10, when dust-containing tail gas enters the settling chamber 10, the tail gas cannot enter the collecting bin 11 under the action of the negative pressure, and dust directly falls into the collecting bin 11 and is further conveyed into the storage bin 12. And the tail gas after dust removal sequentially enters a first washing tower 20 and a second washing tower 21, acid liquor in an acid storage tank 22 washes the dust-removed tail gas so as to remove ammonia in the tail gas, and the tail gas is discharged by an exhaust pipeline 30 after the tail gas is qualified. The acid in the acid tank 22 is phosphoric acid, and the tail gas is scrubbed with phosphoric acid to remove ammonia.
Further, a plurality of upper baffles 101 and lower baffles 102 are sequentially disposed at the top and bottom of the settling chamber 10, so that an S-shaped flow direction is formed inside the settling chamber 10. The plurality of upper baffles 101 and lower baffles 102 drain the tail gas entering the settling chamber 10, so that the tail gas after dust removal enters the first scrubber 20 through the first connecting pipe 31.
Further, a pneumatic jar 111 is disposed on the outer circumferential surface of the collecting bin 11, a pneumatic butterfly valve 112 is disposed at the bottom of the collecting bin 11 and the bottom of the storing bin 12, and the pneumatic butterfly valve 112 at the bottom of the collecting bin 11 is communicated with the top of the storing bin 12. The pneumatic jar 111 is effective to deposit dust located in the interior of the collection bin 11 into the bottom; when the pneumatic butterfly valve 112 in the collection bin 11 is opened, the dust is transferred to the storage bin 12 for storage, and when the dust is stored to a certain amount, the dust is processed and transferred.
Further, the connection unit 3 further includes a first spray pipe 34 and a first spray pump 222, the demister 24 and the atomizer 23 are disposed in the first washing tower 20 from top to bottom, two ends of the first spray pipe 34 are respectively communicated with the atomizer 23 and the acid solution in the acid tank 22, and the first spray pump 222 drives the acid solution to be transferred into the first spray pipe 34 to enter the atomizer 23. The first spray pump 222 drives the acid liquor to enter the atomizing nozzle 23 through the first spray pipeline 34 for spray washing so as to remove the ammonia gas in the tail gas for the first time. An exhaust gas diffusion cap 37 is provided at the end of the first connection pipe which enters the first scrubber 20 to uniformly diffuse the exhaust gas. Meanwhile, the demister 24 arranged at the upper part is a gas-liquid separation device, can effectively separate liquid particles in the tail gas after pickling from gas, furthest reduces the liquid particles from flowing out of the tower body, and provides preparation for removing ammonia in the tail gas for the second time. The positions and the number of the atomizing nozzles 23 are set according to the actual processing conditions. The adoption of the atomizing nozzle 23 can enable the acid liquor and the tail gas to be fully mixed, and the ammonia removal is effectively improved.
Further, the connection unit 3 further includes a second spray pipe 35 and a second spray pump 223, a demister 24 and an atomizer 23 are disposed in the second washing tower 21 from top to bottom, two ends of the second spray pipe 35 are respectively communicated with the atomizer 23 and the acid solution in the acid tank 22, and the second spray pump 223 drives the acid solution to be transferred into the second spray pipe 35 to enter the atomizer 23. The second spray pump 223 drives the acid liquor to enter the atomizing nozzle 23 through the second spray pipeline 35 for spray washing so as to remove ammonia gas in the tail gas for the second time. Similarly, an exhaust gas diffusion cap 37 is provided at the end of the second connection pipe 32 into the second scrubber 21 to uniformly diffuse the exhaust gas.
Further, a pneumatic three-way valve 225 is provided in the second shower pipe 35 adjacent to the atomizer head 23, two ports of the pneumatic three-way valve 225 are communicated with the second shower pipe 35, and the remaining one port is communicated with a workshop production line, as indicated by an arrow B in fig. 1. The pneumatic three-way valve 225 is arranged at the position, so that the acid liquid in the acid storage tank 22 can be adjusted to the workshop production line for use, repeated pipeline arrangement is avoided, and the material cost is saved.
Further, an induced draft fan 36 is disposed at the connection between the third connecting pipe 33 and the exhaust pipe 30, an ammonia sensor 301 is disposed on the exhaust pipe 30, the induced draft fan 36 is used for guiding the exhaust gas in the third connecting pipe 33 to be discharged to the exhaust pipe 30, and the ammonia sensor 301 is used for detecting the ammonia content in the exhaust gas of the exhaust pipe 30. The ammonia sensor 301 detects that the ammonia content in the exhaust pipe 30 meets the emission standard, and if the ammonia content is qualified, the ammonia is emitted; when the content does not meet the emission standard and is unqualified, an audible and visual alarm is arranged to give an alarm for reminding that the ammonia removal treatment is needed to be continued, and finally the ammonia removal treatment can be carried out when the emission standard is reached. An exhaust gas diffusion cap 37 may also be provided at the discharge end of the discharge conduit.
Further, the washing unit 2 further comprises a magnetic flap level meter 226 and an acid replenishing pneumatic valve 227, wherein the magnetic flap level meter 226 is used for detecting the liquid level of the acid storage tank 22, and the acid replenishing pneumatic valve 227 is used for controlling acid replenishing of the acid storage tank 22. According to the liquid level of the acid storage tank 22, when the liquid level is low, the acid supplementing pneumatic valve 227 is connected with the phosphoric acid device, and the valve is automatically opened to enable the phosphoric acid liquid to enter the acid storage tank 22 for acid supplementing under the drive of the driving device. And a liquid sealing baffle 224 is arranged inside the acid storage tank 22 for isolating the tail gas from short circuit.
The working principle of the utility model is as follows: the front end of the whole device is provided with a collecting device for collecting dust-containing tail gas in an ammonium polyphosphate production line, meanwhile, dust is partially collected and stored, the tail gas after dust removal sequentially enters a first washing tower 20 and a second washing tower 21 in a washing unit 2 for primary and secondary book pickling, phosphoric acid is used for atomization spraying pickling, and the tail gas after pickling reaches a qualified standard and is discharged through an exhaust pipeline 30. The separation of dust in the dust-containing tail gas is realized, ammonia is only removed from the tail gas part, and when the tail gas is washed and ammonia is removed, the dust in the dust-containing tail gas cannot enter the washing unit 2, and meanwhile, the dust cannot be deposited in a pipeline to cause pipeline blockage, so that the ammonia removal efficiency is higher.
The foregoing description of the preferred embodiment of the utility model is not intended to limit the utility model in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. An ammonium polyphosphate production line tail gas treatment device, which is characterized by comprising:
the collecting unit (1) comprises a settling chamber (10), a collecting bin (11) and a storage bin (12) which are sequentially connected from top to bottom, wherein the settling chamber (10) is used for collecting dust-containing tail gas from an ammonium polyphosphate production line, and the collecting bin (11) and the storage bin (12) are respectively used for collecting and storing dust in the dust-containing tail gas;
a washing unit (2) comprising a first washing tower (20), a second washing tower (21) and an acid storage tank (22);
a connection unit (3) comprising an exhaust pipe (30), a first connection pipe (31), a second connection pipe (32) and a third connection pipe (33);
the first connecting pipeline (31), the second connecting pipeline (32) and the third connecting pipeline (33) are respectively and sequentially communicated with the settling chamber (10), the first washing tower (20), the second washing tower (21) and the exhaust pipeline (30), the tail gas which is dedusted in the settling chamber (10) is sequentially transmitted to the first washing tower (20) and the second washing tower (21), the acid storage tank (22) is respectively used for providing acid liquid for the dedusting tail gas in the first washing tower (20) and the second washing tower (21) for washing, and the tail gas after washing is transmitted to the exhaust pipeline (30) through the third connecting pipeline (33) for discharging.
2. The tail gas treatment device of the ammonium polyphosphate production line according to claim 1, wherein a plurality of upper baffle plates (101) and lower baffle plates (102) are sequentially arranged at the top and the bottom of the settling chamber (10) so that an S-shaped flow direction is formed inside the settling chamber (10).
3. The tail gas treatment device of the ammonium polyphosphate production line according to claim 1, wherein a pneumatic jar (111) is arranged on the outer circumferential surface of the collecting bin (11), a pneumatic butterfly valve (112) is arranged at the bottom of the collecting bin (11) and the bottom of the storing bin (12), and the pneumatic butterfly valve (112) at the bottom of the collecting bin (11) is communicated with the top of the storing bin (12).
4. The tail gas treatment device of the ammonium polyphosphate production line according to claim 1, wherein the connecting unit (3) further comprises a first spray pipeline (34) and a first spray pump (222), a demister (24) and an atomizing nozzle (23) are arranged in the first washing tower (20) from top to bottom, two ends of the first spray pipeline (34) are respectively communicated with the atomizing nozzle (23) and the acid liquid in the acid storage tank (22), and the first spray pump (222) drives the acid liquid to be transmitted into the first spray pipeline (34) to enter the atomizing nozzle (23).
5. The tail gas treatment device of the ammonium polyphosphate production line according to claim 1, wherein the connecting unit (3) further comprises a second spray pipeline (35) and a second spray pump (223), a demister (24) and an atomizing nozzle (23) are arranged in the second washing tower (21) from top to bottom, two ends of the second spray pipeline (35) are respectively communicated with the atomizing nozzle (23) and the acid liquid in the acid storage tank (22), and the second spray pump (223) drives the acid liquid to be transmitted into the second spray pipeline (35) to enter the atomizing nozzle (23).
6. An ammonium polyphosphate production line tail gas treatment device according to claim 5, characterized in that a pneumatic three-way valve (225) is provided in the second spray pipe (35) adjacent to the atomizer head (23), two of the ports of the pneumatic three-way valve (225) being in communication with the second spray pipe (35).
7. The tail gas treatment device of the ammonium polyphosphate production line according to claim 1, wherein an induced draft fan (36) is arranged at the joint of the third connecting pipeline (33) and the exhaust pipeline (30), an ammonia sensor (301) is arranged at the exhaust pipeline (30), the induced draft fan (36) is used for guiding tail gas in the third connecting pipeline (33) to be discharged to the exhaust pipeline (30), and the ammonia sensor (301) is used for detecting ammonia content in the tail gas of the exhaust pipeline (30).
8. The tail gas treatment device of an ammonium polyphosphate production line according to claim 1, wherein the washing unit (2) further comprises a magnetic flap level meter (226) and an acid supplementing pneumatic valve (227), the magnetic flap level meter (226) is used for detecting the liquid level of the acid storage tank (22), and the acid supplementing pneumatic valve (227) is used for controlling acid liquor supplementation of the acid storage tank (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321263192.6U CN219804453U (en) | 2023-05-24 | 2023-05-24 | Tail gas treatment device for ammonium polyphosphate production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321263192.6U CN219804453U (en) | 2023-05-24 | 2023-05-24 | Tail gas treatment device for ammonium polyphosphate production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219804453U true CN219804453U (en) | 2023-10-10 |
Family
ID=88210649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321263192.6U Active CN219804453U (en) | 2023-05-24 | 2023-05-24 | Tail gas treatment device for ammonium polyphosphate production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219804453U (en) |
-
2023
- 2023-05-24 CN CN202321263192.6U patent/CN219804453U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109821373A (en) | A kind of plasma emission-control equipment and method | |
| CN206566629U (en) | A kind of harmful exhaust treatment and purification device | |
| CN208553653U (en) | A kind of Horizental showering tower for pickling exhaust-gas treatment | |
| CN108355480A (en) | A kind of purifying sulphur-containing waste wet desulphurization device | |
| CN208626933U (en) | A kind of desulfurization spray equipment | |
| CN219804453U (en) | Tail gas treatment device for ammonium polyphosphate production line | |
| CN206897123U (en) | A kind of multi-stage flue gas desulfurization denitration spray-absorption device | |
| CN211246072U (en) | Acid-base tail gas treatment spraying device | |
| CN112657292A (en) | Flue gas treatment system and method | |
| CN216171087U (en) | Waste gas washing device | |
| CN210057753U (en) | Horizontal water curtain dust removal water circulation integrated system | |
| CN213790895U (en) | Industrial waste gas treatment device | |
| CN208493655U (en) | A kind of efficient exhaust gas processing device | |
| CN210410185U (en) | Acid mist-proof waste gas equipment | |
| CN210674767U (en) | Waste gas treatment equipment | |
| CN212818917U (en) | Be used for coke oven flue gas desulphurization unit | |
| US7655200B2 (en) | Method for purifying exhaust of waste gas using atomized fluid droplets combined with turbulent flow | |
| CN217248000U (en) | Industrial furnace flue gas treatment spraying equipment capable of being recycled | |
| CN212632271U (en) | Closed dust removal SOx/NOx control system | |
| CN211025755U (en) | Industrial flue gas desulfurization device | |
| CN214635281U (en) | Waste gas treatment device is used in fertilizer ammonium sulfate production | |
| CN219976767U (en) | Boiler heat recovery device | |
| CN216825625U (en) | Sulfur-containing gas two-stage purification device | |
| CN221333520U (en) | Flue gas dust removal water jet equipment | |
| CN208583116U (en) | A kind of smoke processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A tail gas treatment device for ammonium polyphosphate production line Granted publication date: 20231010 Pledgee: China Co. truction Bank Corp Deyang branch Pledgor: SHIFANG CHANGFENG CHEMICAL Co.,Ltd. Registration number: Y2024980034429 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |