CN115253646A - Waste gas treatment production line for aquatic product processing - Google Patents
Waste gas treatment production line for aquatic product processing Download PDFInfo
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- CN115253646A CN115253646A CN202211032080.XA CN202211032080A CN115253646A CN 115253646 A CN115253646 A CN 115253646A CN 202211032080 A CN202211032080 A CN 202211032080A CN 115253646 A CN115253646 A CN 115253646A
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- 239000002912 waste gas Substances 0.000 title claims abstract description 95
- 238000012545 processing Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 16
- 230000001699 photocatalysis Effects 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 238000007146 photocatalysis Methods 0.000 claims abstract description 9
- 239000003929 acidic solution Substances 0.000 claims abstract description 3
- 239000012670 alkaline solution Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 298
- 238000011084 recovery Methods 0.000 claims description 52
- 238000001802 infusion Methods 0.000 claims description 45
- 238000007667 floating Methods 0.000 claims description 43
- 238000001179 sorption measurement Methods 0.000 claims description 31
- 239000003814 drug Substances 0.000 claims description 28
- 238000012856 packing Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 235000014102 seafood Nutrition 0.000 claims 3
- 230000032683 aging Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract 1
- 239000011550 stock solution Substances 0.000 description 16
- 229940079593 drug Drugs 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 239000003513 alkali Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000004064 recycling Methods 0.000 description 8
- 150000001412 amines Chemical class 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 150000004665 fatty acids Chemical class 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 239000012295 chemical reaction liquid Substances 0.000 description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 241000238366 Cephalopoda Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000238424 Crustacea Species 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 235000019733 Fish meal Nutrition 0.000 description 1
- 241000238371 Sepiidae Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004467 fishmeal Substances 0.000 description 1
- 239000010795 gaseous waste Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
Abstract
The application discloses an aquatic product processing waste gas treatment production line, which relates to the technical field of waste treatment devices and comprises a waste gas cooling device, a waste gas reaction device, a UV (ultraviolet) photocatalytic device and a discharge device which are sequentially connected; the waste gas cooling device is used for cooling waste gas discharged by the processing production line; the waste gas reaction device comprises a first spray tower and a second spray tower which are sequentially arranged, wherein the first spray tower and the second spray tower are respectively used for introducing an acidic solution and an alkaline solution for waste gas reaction; the UV photocatalysis device is used for decomposing organic substances in the waste gas; the discharging device is used for discharging the treated waste gas. Through exhaust gas cooling device, exhaust gas reaction unit, UV photocatalysis unit to handle waste gas, whole journey need not to consume higher energy, also need not higher treatment cost, and handles the ageing fast, secondary pollution is few.
Description
Technical Field
The application relates to the technical field of waste gas treatment devices, in particular to a waste gas treatment device for aquatic product processing.
Background
When the existing feed raw materials, such as fish meal, cuttlefish paste, shrimp paste, squid paste and the like, are developed in the processing industry of aquatic products, such as fishes, cephalopods, crustaceans and the like, a large amount of waste gas with fishy smell is generated, and the waste gas contains low-molecular fatty acid, amines, aldehydes, ketones, aliphatic, aromatic and other substances, is directly discharged without treatment, and can cause serious pollution to the environment.
The main treatment methods of the waste gas generated by the processing of the aquatic products comprise: combustion method, absorption method, low-temperature plasma method, and the like. The combustion method has high energy consumption and is easy to generate secondary pollution. The absorption method has low efficiency and is easy to generate secondary pollution. The low temperature plasma method has high investment cost, high maintenance cost and low treatment efficiency. Therefore, it is desirable to provide a treatment device capable of efficiently treating exhaust gas.
Disclosure of Invention
The invention aims to provide an aquatic product processing waste gas treatment production line which can efficiently treat tail gas and does not cause secondary pollution to the environment.
The application provides a pair of aquatic products processing exhaust-gas treatment produces line adopts following technical scheme:
a waste gas treatment production line for aquatic product processing comprises a waste gas cooling device, a waste gas reaction device, a UV (ultraviolet) photocatalytic device and a discharge device which are sequentially connected;
the waste gas cooling device is used for cooling waste gas discharged by the processing production line;
the waste gas reaction device comprises a first spray tower and a second spray tower which are sequentially arranged, wherein the first spray tower and the second spray tower are respectively used for introducing an acidic solution and an alkaline solution for waste gas reaction;
the UV photocatalysis device is used for decomposing organic substances in the waste gas;
the exhaust device is used for exhausting the treated waste gas.
Through the technical scheme, waste gas cooling device can cool down the cooling to the waste gas that processing produced, acidizing fluid and alkali lye can be let in respectively to first spray column and second spray column, ammonia with in the waste gas, amines, material such as fatty acids and hydrogen sulfide take place irreversible chemical reaction, get rid of most of the foul smell material in the waste gas, organic substance in the rethread UV photocatalysis device decomposes the waste gas, carry out deodorization purification to waste gas, discharge through discharging equipment with waste gas at last again, whole journey need not to consume higher energy, also need not higher treatment cost, and the treatment ageing is fast, secondary pollution is few.
Optionally, the exhaust gas cooling device comprises an air cooler and a shell and tube condenser which are connected in sequence.
Through above-mentioned technical scheme, set up air cooling machine and shell and tube condenser, the air cooling machine can carry out preliminary cooling to waste gas, and the cooling runner of rethread shell and tube condenser extension waste gas to this prolongs the cool time of waste gas, improves the cooling effect of waste gas, and the treatment of the follow-up waste gas of being convenient for improves the exhaust-gas treatment effect.
Optionally, the shell and tube condenser is connected with a first cooling tower, and a first circulating pump is connected between the first cooling tower and the shell and tube condenser.
Through above-mentioned technical scheme, set up first cooling tower and first circulating pump, drive the cooling water circulation through first circulating pump and flow between first cooling tower and shell and tube condenser, constantly take out the inside heat of shell and tube condenser, improve shell and tube condenser and to the cooling effect of waste gas, the treatment of the follow-up waste gas of being convenient for improves the treatment effect of waste gas.
Optionally, the first spray tower comprises a first tower body, a first water pump, a first liquid storage cavity, a first air inlet section, a plurality of first packing layers, a first demisting layer and a first air outlet section, which are sequentially arranged in the first tower body from bottom to top;
the liquid inlet end of the first water pump is communicated with the first liquid storage cavity through a pipeline;
a first spraying assembly is arranged between every two adjacent first packing layers, and each first spraying assembly comprises a first main spray pipe communicated with the liquid outlet end of the first water pump and a plurality of first nozzles arranged on the first main spray pipes;
the second spray tower comprises a second tower body, a second water pump, a second liquid storage cavity, a second air inlet section, a plurality of second packing layers, a second demisting layer and a second air outlet section, wherein the second liquid storage cavity, the second air inlet section, the plurality of second packing layers, the second demisting layer and the second air outlet section are sequentially arranged in the second tower body from bottom to top;
the liquid inlet end of the second water pump is communicated with the second liquid storage cavity through a pipeline;
and a second spraying assembly is arranged between every two adjacent second packing layers, and each group of second spraying assemblies comprises a second main spray pipe communicated with the liquid outlet end of the second water pump and a plurality of second nozzles arranged on the second main spray pipes.
Through above-mentioned technical scheme, practical waste gas gets into the back from first section or the second section of admitting air, waste gas can be full of the inner space of first section or the second section of admitting air rapidly, then rise gradually, then on the surface of first packing layer or second packing layer, gaseous waste gas and acidizing fluid or alkali lye take place neutralization reaction, handle the material of part stinking in the waste gas, along with waste gas in the inside continuous rising of first body or second body, waste gas can fully mix with acidizing fluid or alkali lye, the contact, constantly take place neutralization reaction, can the high-efficient stinking material in the processing waste gas.
Optionally, the first liquid storage cavity is connected with a first liquid discharge pipeline, and a first liquid discharge valve is arranged on the first liquid discharge pipeline;
the second liquid storage cavity is connected with a second liquid discharge pipeline, and a second liquid discharge valve is arranged on the second liquid discharge pipeline;
the waste gas reaction device also comprises a first medicine storage barrel and a second medicine storage barrel;
a first infusion tube is communicated between the first medicine storage barrel and the first liquid storage cavity, a first on-off component is arranged on the first infusion tube and is used for controlling the first infusion tube to be closed and conducted;
and a second infusion tube is communicated between the second medicine storage barrel and the second liquid storage cavity, a second on-off component is arranged on the second infusion tube and is used for controlling the second infusion tube to be closed and conducted.
Through the technical scheme, the first liquid discharge pipeline, the second liquid discharge pipeline, the first medicine storage barrel, the first liquid conveying pipe, the second medicine storage barrel and the second liquid conveying pipe are arranged, and liquid in the first liquid storage cavity and liquid in the second liquid storage cavity can be discharged through the first liquid discharge pipeline and the second liquid discharge pipeline respectively, so that the overhaul is facilitated; the first liquid conveying pipe can guide acid liquor or alkali liquor in the first medicine storage barrel into the first liquid storage cavity, and the second liquid conveying pipe can guide acid liquor or alkali liquor in the second medicine storage barrel into the second liquid storage cavity for medicine supplement, so that the treatment quality of waste gas is ensured.
Optionally, the first drainage pipeline includes a first main drainage pipe, a first upper drainage branch pipe and a first lower drainage branch pipe, the first upper drainage branch pipe and the first lower drainage branch pipe are communicated with the first liquid storage cavity, a communication port between the first upper drainage branch pipe and the first liquid storage cavity is a first upper branch port, a communication port between the first lower drainage branch pipe and the first liquid storage cavity is a first lower branch port, the first lower branch port is close to the bottom of the first liquid storage cavity, the first upper branch port is located above the first lower branch port, the first drainage valve is arranged on the first lower drainage branch pipe, and the first main drainage pipe is provided with a first drainage pump;
the second liquid discharge pipeline comprises a second main liquid discharge pipe, a second liquid discharge upper branch pipe and a second liquid discharge lower branch pipe, wherein the second liquid discharge upper branch pipe and the second liquid discharge lower branch pipe are communicated with the second main liquid discharge pipe, the second liquid discharge upper branch pipe and the second liquid discharge lower branch pipe are communicated with the second liquid storage cavity respectively, a communication port of the second liquid discharge upper branch pipe and the second liquid storage cavity is a second upper branch port, the second liquid discharge lower branch pipe and a communication port of the second liquid storage cavity are second lower branch ports, the second lower branch ports are close to the cavity bottom of the second liquid storage cavity, the second upper branch ports are located above the second lower branch ports, the second liquid discharge valve is arranged on the second liquid discharge lower branch pipe, and a second liquid discharge pump is arranged on the second main liquid discharge pipe.
Through above-mentioned technical scheme, realize derivation of first stock solution chamber and second stock solution intracavity liquid, make things convenient for later stage maintenance.
Optionally, a first flow guide plate is arranged in the first liquid storage cavity, a first flow guide groove is formed in the upper end of the first flow guide plate, the first flow guide groove is communicated with the first upper branch port, and the bottom of the first flow guide groove is arranged obliquely downwards towards a direction close to the first upper branch port;
the second liquid storage cavity is internally provided with a second guide plate, the upper end of the second guide plate is provided with a second guide groove, the second guide groove is communicated with the second upper support opening, and the groove bottom of the second guide groove is inclined downwards towards the direction close to the second upper support opening.
Through above-mentioned technical scheme, set up first guide plate and second guide plate, first guiding gutter on the first guide plate can be with the reaction liquid of first air inlet section top backward flow derive to first branch mouth on, the second guiding gutter on the second guide plate can be with the reaction liquid of second air inlet section top backward flow derive to the second on branch mouth, the recovery of the reaction liquid of being convenient for.
Optionally, a section of the first infusion tube located in the first liquid storage cavity is vertically arranged;
the first on-off assembly is positioned in the first liquid storage cavity and comprises a first sliding rod, a first upper floating ring and a first lower floating ring, wherein the first upper floating ring and the first lower floating ring are coaxially arranged on the first sliding rod;
when the liquid level in the first liquid storage cavity is higher than the first lower floating ring, the first magnetic adsorption part and the first magnetic part are mutually adsorbed, and the first upper floating ring is blocked at the lower end of the first infusion tube;
when the liquid level in the first liquid storage cavity is lower than the first lower floating ring, the first magnetic adsorption part and the first magnetic part are separated from each other, and the lower end of the first infusion tube is communicated.
According to the technical scheme, the first on-off assembly comprises a first sliding rod, a first upper floating ring, a first lower floating ring, a first magnetic adsorption part and a first magnetic part, the first sliding rod is connected to the lower end of the first infusion tube in a sliding mode, when the liquid level in the first liquid storage cavity is higher than the first lower floating ring, the first lower floating ring floats upwards through buoyancy of liquid, the first magnetic part and the first magnetic adsorption part are adsorbed to each other, and at the moment, the lower end of the first infusion tube is not conducted; when the liquid level height in first stock solution intracavity is less than the height of first ring of floating down, the liquid in first stock solution intracavity no longer provides buoyancy for first ring of floating down, the gravity that relies on first ring of floating down takes away first magnetic part with first magnetic adsorption piece, first transfer line lower extreme switches on this moment, the inside liquid of first storage bucket can carry out the replenishment of liquid through first transfer line in to first stock solution intracavity, and then realize the automatic replenishment of first stock solution intracavity liquid, ensure that first stock solution intracavity has sufficient liquid and supply the waste gas reaction, the treatment quality and the treatment effeciency of improvement waste gas.
Optionally, the exhaust gas reaction device further comprises a controller;
the first main liquid discharge pipe is connected with a first recovery tank, the first recovery tank is connected with a first liquid return pipeline, the first liquid return pipeline is communicated with the first liquid storage cavity, and a first liquid return conduction valve and a first liquid return pump are arranged on the first liquid return pipeline;
the first recovery tank is internally provided with a first PH sensor which is used for detecting the PH value of the liquid in the first recovery tank and converting the detected PH value into a first output signal to be output to the controller,
the controller is preset with a first preset value, and when the first output signal is not greater than the first preset value, the controller controls the first liquid return conduction valve to be conducted and the first liquid return pump to operate, and the first liquid return pump is used for returning liquid in the first recovery tank to the first liquid storage cavity;
when the first output signal is larger than a first preset value, the controller controls the first liquid return conduction valve to be closed and the first liquid return pump to stop.
According to the technical scheme, the first recovery tank is arranged for recovering the liquid discharged by the first main liquid discharge pipe, the first PH sensor is arranged for detecting the PH value of the liquid in the first recovery tank, when the first output signal is not greater than the first preset value, the liquid in the first recovery tank still can meet the reaction of waste gas, and at the moment, the liquid in the first recovery tank is pumped back to the first liquid storage cavity for recovery through the operation of the first liquid recovery pump, so that the utilization rate of the reaction liquid is improved; when first output signal is greater than first default, it is not enough to supply waste gas to fully react to represent the liquid in the first recovery jar, and first liquid guide valve closure and first liquid return pump stop this moment, and the liquid in the first recovery jar can not flow back to first stock solution chamber, and what replaced is that first storage medicine bucket carries out the replenishment of first stock solution intracavity liquid, guarantees the treatment quality and the treatment effeciency of waste gas.
Optionally, a first discharge pipe is arranged on the first recovery tank, and a first discharge valve is arranged on the first discharge pipe;
when the first output signal is larger than a first preset value, the controller controls the first discharge valve to be opened to discharge the liquid in the first recovery tank.
Through above-mentioned technical scheme, set up first exhaust pipe, with the liquid discharge in the first recovery jar, the leading-in of follow-up liquid of being convenient for.
In summary, the present application includes at least one of the following beneficial technical effects:
(1) Through the arrangement of the waste gas cooling device, the waste gas reaction device, the UV photocatalysis device and the discharging device, the waste gas cooling device can cool down the waste gas generated by processing, the first spray tower and the second spray tower can be respectively filled with acid liquor and alkali liquor to carry out irreversible chemical reaction with ammonia gas, amines, fatty acids, hydrogen sulfide and other substances in the waste gas to remove most malodorous substances in the waste gas, the UV photocatalysis device is used for decomposing organic substances in the waste gas to deodorize and purify the waste gas, and finally the waste gas is discharged through the discharging device, so that higher energy consumption and higher treatment cost are not needed in the whole process, the treatment aging is fast, and the secondary pollution is less;
(2) By arranging the first on-off assembly comprising the first sliding rod, the first upper floating ring, the first lower floating ring, the first magnetic adsorption piece and the first magnetic piece, the automatic supplement of liquid in the first liquid storage cavity is realized, sufficient liquid for waste gas reaction in the first liquid storage cavity is ensured, and the treatment quality and the treatment efficiency of waste gas are improved;
(3) Through setting up first recovery tank, retrieve first main exhaust pipe exhaust liquid to set up the PH value that first PH sensor detected first recovery tank interior liquid, when first output signal is not more than first default, represent first recovery tank interior liquid and still can satisfy the reaction of waste gas, the operation through first liquid return pump at this moment is retrieved first stock solution chamber with the liquid pump withdrawal in the first recovery tank, improves reaction liquid's utilization ratio.
Drawings
Fig. 1 is a schematic overall structure diagram of the present embodiment.
Fig. 2 is a schematic structural diagram of the first spray tower in this embodiment.
Fig. 3 is a schematic partial structural view of the first spray tower in this embodiment.
Fig. 4 is an enlarged view of a portion of a structure in fig. 2.
Fig. 5 is a schematic structural diagram of the second spray tower in this embodiment.
Fig. 6 is a schematic partial structural view of the second spray tower in this embodiment.
Fig. 7 is an enlarged view of a portion of the structure at B in fig. 5.
Reference numerals are as follows: 1. an exhaust gas cooling device; 11. an air cooler; 12. a shell and tube condenser; 13. a first cooling tower; 14. a first circulation pump; 2. an exhaust gas reaction device; 21. a first spray tower; 211. a first water pump; 212. a first tower body; 213. a first reservoir chamber; 214. a first air intake section; 215. a first packing layer; 216. a first defogging layer; 217. a first air outlet section; 218. a first air inlet; 219. a first air outlet; 220. a first spray assembly; 2201. a first main nozzle; 2202. a first nozzle; 221. a first drain line; 2211. a first main drain pipe; 2212. a first upper drain branch pipe; 2213. a first draining lower branch pipe; 222. a first upper branch port; 223. a first lower branch port; 224. a first drain valve; 225. a first baffle; 226. a first diversion trench; 227. a first recovery tank; 228. a first recovery line; 229. a first fluid return conduction valve; 230. a first liquid return pump; 231. a first discharge pipe; 232. a first discharge valve; 233. a first pH sensor; 234. a first infusion tube; 235. a first on-off assembly; 2351. a first slide bar; 2352. a first upper floating ring; 2353. a first lower floating ring; 2354. a first magnetic member; 2355. a first magnetic adsorption member; 24. a controller; 25. a second spray tower; 251. a second water pump; 252. a second tower body; 253. a second reservoir chamber; 254. a second air intake section; 255. a second packing layer; 256. a second defogging layer; 257. a second air outlet section; 258. a second air inlet; 259. a second air outlet; 260. a second spray assembly; 2601. a second main nozzle; 2602. a second nozzle; 261. a second drain line; 2611. a second main drain pipe; 2612. a second liquid discharge upper branch pipe; 2613. a second drainage lower branch pipe; 262. a second upper branch port; 263. a second lower branch port; 264. a second drain valve; 265. a second baffle; 266. a second guiding gutter; 267. a second recovery tank; 268. a second recovery line; 269. a second liquid return conduction valve; 270. a second liquid return pump; 271. a second discharge pipe; 272. a second discharge valve; 273. a second pH sensor; 274. a second infusion tube; 275. a second disconnect assembly; 2751. a second slide bar; 2752. a second upper floating ring; 2753. a second lower floating ring; 2754. a second magnetic member; 2755. a second magnetic adsorption member; 28. a first drug storage barrel; 29. a second drug storage barrel; 3. a UV photo-catalytic device; 4. a discharge device; 5. a first induced draft fan; 6. and a second induced draft fan.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses aquatic products processing exhaust-gas treatment produces line.
Referring to fig. 1, the exhaust gas cooling device 1, the exhaust gas reaction device 2, the UV photocatalyst device 3, and the exhaust device 4 are included in this order.
Referring to fig. 1, the exhaust gas cooling device 1 includes an air cooler 11 and a shell and tube condenser 12. And the air inlet end of the air cooler 11 is used for being communicated with an air outlet of a processing production line. The air inlet end of the shell and tube condenser 12 is connected with the air outlet end of the air cooler 11 through a pipeline. The outlet end of the shell and tube condenser 12 is connected with the waste gas reaction device 2. Air cooler 11 can carry out the primary cooling to waste gas, and shell and tube condenser 12 can prolong the cooling runner of waste gas, and then the cool time of extension waste gas for the cooling effect of waste gas is better.
Referring to fig. 1, a first cooling tower 13 is connected to the shell and tube condenser 12, and a first circulation pump 14 is provided between the first cooling tower 13 and the shell and tube condenser 12. The cooling water outlet end of the first cooling tower 13 is connected with the water inlet end of the first circulating pump 14 through a pipeline, the water outlet end of the first circulating pump 14 is connected with the cooling water inlet end of the tube array condenser 12 through a pipeline, and the cooling water outlet end of the tube array condenser 12 is communicated with the cooling water inlet end of the first cooling tower 13 through a pipeline. And then the cooling water can realize circulating between first cooling tower 13 and shell and tube condenser 12, constantly takes away the heat in shell and tube condenser 12, improves shell and tube condenser 12 to the cooling effect of waste gas.
Referring to fig. 1, the exhaust gas reaction apparatus 2 includes a first spray tower 21 and a second spray tower 25.
Referring to fig. 1 and 2, the first spray tower 21 includes a first water pump 211, a first tower body 212, a first liquid storage cavity 213, a first air inlet section 214, a plurality of first packing layers 215, a first defogging layer 216, and a first air outlet section 217, which are sequentially disposed from bottom to top in the first tower body 212.
Referring to fig. 1 and fig. 2, a first air inlet 218 is provided on the side wall of the first air inlet section 214, a first induced draft fan 5 is connected between the first air inlet 218 and the air outlet end of the shell and tube condenser 12, the air outlet end of the shell and tube condenser 12 is communicated with the air inlet end of the first induced draft fan 5 through a pipeline, and the air outlet end of the first induced draft fan 5 is communicated with the first air inlet 218 through a pipeline. The upper end of the first air outlet end is provided with a first air outlet 219.
Referring to fig. 2, the first packing layer 215 has three layers from bottom to top, and the bottom of the second first packing layer 215 and the bottom of the third first packing layer 215 are respectively provided with a first spray assembly 220 from bottom to top. The first spray assembly 220 includes a first main nozzle 2201 and a number of first nozzles 2202 disposed on the first main nozzle 2201. Each first main nozzle 2201 is communicated with the liquid outlet end of the first water pump 211 through a pipeline, and the liquid inlet end of the first water pump 211 is communicated with the first liquid storage cavity 213 through a pipeline. A plurality of first nozzles 2202 on each first main nozzle 2201 are respectively arranged vertically downward. The first demisting layer 216 is a cyclone demister, and can effectively remove liquid droplets in the exhaust gas in the actual use process of 0, so that the liquid droplets flow back and fall. During the upward flow of the exhaust gas, the exhaust gas reacts with the liquid discharged from the first nozzle 2202 on the surface of each first filler layer 215 to remove ammonia gas, amines, and the like.
Referring to fig. 2 and 3, a first drain line 221 is connected to the first reservoir chamber 213. The first drain line 221 includes a first main drain tube 2211, a first drain upper branch 2212 communicating with the first main drain tube 2211, and a first drain lower branch 2213. The first upper branch 2212 and the first lower branch 2213 are respectively communicated with the first liquid storage cavity 213, the communication port of the first upper branch 2212 and the first liquid storage cavity 213 is a first upper branch port 222, and the communication port of the first lower branch 2213 and the first liquid storage cavity 213 is a first lower branch port 223. The first upper branch port 222 and the first lower branch port 223 are both located below the first air inlet 218, the first lower branch port 223 is arranged near the bottom of the first liquid storage cavity 213, and the first upper branch port 222 is located above the first lower branch port 223. The first drainage branch 2213 is provided with a first drainage valve 224, the first drainage valve 224 is an electromagnetic valve, and the first drainage valve 224 is used for controlling the on-off of the first drainage branch 2213. A first drain pump is installed on the first main drain pipe 2211.
Referring to fig. 2 and 3, a first guide plate 225 is fixed above the first reservoir 213, a first guide groove 226 is formed in an upper end of the first guide plate 225, the first guide groove 226 is communicated with the first upper branch opening 222, and a bottom of the first guide groove 226 is inclined downward toward a direction close to the first upper branch opening 222. In actual use, the liquid sprayed by the first spraying assembly 220 flows back to the first guiding gutter 226, and flows to the first upper branch port 222 to be guided out through the first guiding gutter 226.
Referring to fig. 1 and 2, the exhaust gas reaction device 2 further includes a first recovery tank 227 and a controller 24. The first recovery tank 227 communicates with the discharge end of the first main liquid discharge pipe 2211.
Referring to fig. 2 and 3, the first recovery tank 227 is connected to a first liquid return line, the other end of the first liquid return line is communicated with the first liquid storage chamber 213, and a first liquid return conduction valve 229 and a first liquid return pump 230 are installed on the first liquid return line. A first drain pipe 231 is connected to the first recovery tank 227, a first drain valve 232 is provided in the first drain pipe 231, and the first drain pipe 231 is used to drain the liquid in the first recovery tank 227.
Referring to fig. 1 and 2, a first PH sensor 233 is installed at an upper end of the first recovery tank 227, and a probe of the first PH sensor 233 extends into the first recovery tank 227. The first PH sensor 233 is used for detecting the PH of the liquid in the first recovery tank 227 and converting the detected PH of the liquid into a first output signal to be output to the controller 24. The controller 24 is preset with a first preset value indicating that the PH of the liquid is acidic, and the liquid PH below the first preset value can fully react with ammonia, amines and other substances in the exhaust gas.
Referring to fig. 2 and 3, in actual use, the liquid sprayed by the first spraying assembly 220 flows back to the first guiding gutter 226, and the liquid is guided by the first guiding gutter 226 and then discharged to the first recovery tank 227 through the first liquid discharge upper branch pipe 2212 and the first main liquid discharge pipe 2211 in sequence. The first PH sensor 233 can detect the PH value of the liquid in the first recycling tank 227 in real time, and when the first output signal output by the first PH sensor 233 is not greater than the first preset value, the controller 24 controls the first recycling valve 229 to be turned on and the first recycling pump 230 to operate, so as to return the liquid in the first recycling tank 227 to the first liquid storage chamber 213 through the first recycling pipeline. When the first output signal output by the first PH sensor 233 is greater than the first preset value, the first backflow conductance valve 229 is closed, the first backflow pump 230 is stopped, the first discharge valve 232 is opened, and the liquid in the first recovery tank 227 is discharged through the first discharge pipe 231, so that the PH value of the liquid is prevented from rising to affect the treatment effect of the ammonia gas, the amines and other substances in the waste gas.
The exhaust gas reaction device further includes a first medicine storage barrel 28 and a second medicine storage barrel 29.
Referring to fig. 2, a first infusion tube 234 is communicated between the first drug storage barrel 28 and the first liquid storage cavity 213, the communication position of the first infusion tube 234 and the first drug storage barrel 28 is located at the bottom of the first drug storage barrel 28, and one end of the first infusion tube 234, which is far away from the first drug storage barrel 28, is in a vertical state and extends into the first liquid storage cavity 213 from the upper end of the first liquid storage cavity 213. A first on-off component 235 is arranged at the lower end of the first infusion tube 234 positioned in the first liquid storage cavity 213.
Referring to fig. 2 and 4, the first on/off assembly 235 includes a first slip bar 2351, a first upper floating ring 2352 and a first lower floating ring 2353 coaxially disposed with the first slip bar 2351. The first slip rod 2351 extends into the lower end of the first infusion tube 234 positioned at one section in the first fluid storage cavity 213, and the first slip rod 2351 is connected to the first infusion tube 234 in a sliding manner along the vertical direction. The first upper float ring 2352 is positioned below the first infusion tube 234 and the first lower float ring 2353 is positioned below the first upper float ring 2352. A first magnetic member 2354 is coaxially fixed at the liquid outlet at the lower end of the first infusion tube 234, and the first magnetic member 2354 is annular. The upper end of the first upper floating ring 2352 is coaxially fixed with a first magnetic adsorption member 2355 for adsorbing with the first magnetic member 2354, and the first magnetic adsorption member 2355 is annular. During the in-service use, when the liquid level height in first stock solution chamber 213 is higher than first float ring 2353, the buoyancy that first float ring 2353 and first pole 2351 produced to floating down of liquid in first stock solution chamber 213 adds the mutual adsorption affinity of first magnetic part 2354 and first magnetic adsorption part 2355, can make first magnetic adsorption part 2355 adsorb in first magnetic part 2354, and then first float ring 2352 can block the lower extreme of first transfer line 234, make the liquid in first explosive storage barrel 28 can't supply to first stock solution chamber 213 through first transfer line 234. When the liquid level height in the first liquid storage cavity 213 is lower than the first lower floating ring 2353, the liquid in the first liquid storage cavity 213 does not provide buoyancy for the first lower floating ring 2353 any more, at this time, the mutual adsorption force of the first magnetic part 2354 and the first magnetic adsorption part 2355 is not enough to support the first magnetic adsorption part 2355 to be adsorbed on the first magnetic part 2354, the first magnetic adsorption part 2355 is separated from the first magnetic part 2354, so as to drive the first upper floating ring 2352 to be separated from the first infusion tube 234, so that the lower end of the first infusion tube 234 is conducted, at this time, the liquid in the first medicine storage barrel 28 can be supplemented to the first liquid storage cavity 213 through the first infusion tube 234, and along with the continuous rising of the liquid level height in the first liquid storage cavity 213, the liquid can generate buoyancy for the first lower floating ring 2353 again, so as to push the first sliding rod 2351 to move upwards until the first magnetic adsorption part 2355 is adsorbed on the first magnetic part 2354 again, and the first upper floating ring 2352 plugs the lower end of the first infusion tube 234 again, thereby realizing automatic liquid supplementation. The surfaces of the first magnetic member 2354, the first magnetic adsorption member 2355 and the first sliding bar 2351 are coated with PTFE coatings, so that corrosion of acid liquor or alkali liquor can be effectively reduced.
Alternatively, the first on/off assembly 235 may also be a solenoid valve.
Referring to fig. 1 and 5, the second spray tower 25 includes a second water pump 251, a second tower body 252, a second liquid storage cavity 253, a second air inlet section 254, a plurality of second packing layers 255, a second defogging layer 256, and a second air outlet section 257, which are sequentially disposed from bottom to top in the second tower body 252.
Referring to fig. 2 and 5, a second air inlet 258 is formed in a side wall of the second air inlet section 254, and the second air inlet 258 and the first air outlet 219 are connected by a pipe.
Referring to fig. 1 and 5, a second air outlet 259 is disposed at an upper end of the second air outlet end, and the second air outlet 259 is connected to an air inlet end of the UV photocatalytic device 3 through a pipe.
The second packing layer 255 is provided with three layers from bottom to top, and the bottom of the second packing layer 255 of the second layer and the bottom of the second packing layer 255 of the third layer are provided with a second spraying assembly 260 from bottom to top respectively. The second spray assembly 260 includes a second main nozzle 2601 and several second nozzles 2602 disposed on the second main nozzle 2601. Each second main nozzle 2601 is communicated with the liquid outlet end of the second water pump 251 through a pipeline, and the liquid inlet end of the second water pump 251 is communicated with the second liquid storage cavity 253 through a pipeline. A plurality of second nozzles 2602 of each second main nozzle 2601 are arranged vertically downward, respectively. The second demisting layer 256 is a cyclone demister, and can effectively remove liquid droplets in the exhaust gas in the actual use process, so that the liquid droplets flow back and fall.
Referring to fig. 5 and 6, a second drain line 261 is connected to the second reservoir chamber 253. The second discharging line 261 includes a second main discharging pipe 2611, a second discharging upper branch pipe 2612 and a second discharging lower branch pipe 2613 which are communicated with the second main discharging pipe 2611. The second upper branch liquid draining pipe 2612 and the second lower liquid draining pipe 2613 are respectively communicated with the second liquid storage cavity 253, the communicating port of the second upper branch liquid draining pipe 2612 and the second liquid storage cavity 253 is a second upper branch port 262, and the communicating port of the second lower liquid draining pipe 2613 and the second liquid storage cavity 253 is a second lower branch port 263. The second upper branch port 262 and the second lower branch port 263 are both located below the second air inlet 258, the second lower branch port 263 is disposed near the bottom of the second liquid storage cavity 253, and the second upper branch port 262 is located above the second lower branch port 263. A second drain valve 264 is installed on the second drain lower support pipe 2613, the second drain valve 264 is an electromagnetic valve, and the second drain valve 264 is used for controlling the on-off of the second drain lower support pipe 2613. A second drain pump is installed on the second main drain pipe 2611.
Referring to fig. 5 and 6, a second guide plate 265 is fixed above the second liquid storage cavity 253, a second guide groove 266 is formed in the upper end of the second guide plate 265, the second guide groove 266 is communicated with the second upper branch opening 262, and the bottom of the second guide groove 266 is inclined and arranged downward toward the direction close to the second upper branch opening 262. In actual use, the liquid sprayed by the second spraying assembly 260 flows back to the second guiding gutter 266, and is guided by the second guiding gutter 266 to flow to the second upper branch 262 for being guided out.
Referring to fig. 1 and 5, the offgas reaction apparatus 2 further includes a second recovery tank 267. The second recovery tank 267 communicates with a drain end of a second main drain pipe 2611. The second drain valve 264 drains the liquid drained from the second reservoir chamber 253 into the second recovery tank 267 through the second main drain pipe 2611.
Referring to fig. 5 and 6, a second return line is connected to the second recovery tank 267, the other end of the second return line is communicated with the second liquid storage chamber 253, and a second return conduction valve 269 and a second return pump 270 are installed on the second return line. A second drain pipe 271 is connected to the second recovery tank 267, a second drain valve 272 is provided on the second drain pipe 271, and the second drain pipe 271 is used for draining the liquid in the second recovery tank 267.
Referring to fig. 1 and 5, a second PH sensor 273 is installed at an upper end of the second recovery tank 267, and a probe of the second PH sensor 273 extends into the second recovery tank 267. The second PH sensor 273 is configured to detect a PH of the liquid in the second recycling tank 267, convert the detected PH of the liquid into a second output signal, and output the second output signal to the controller 24. The controller 24 is preset with a second preset value, which indicates that the PH of the liquid is alkaline, and the liquid PH above which can fully react with hydrogen sulfide, lower fatty acids and other substances in the exhaust gas.
Referring to fig. 5 and 6, in actual use, the liquid sprayed by the second spray assembly 260 flows back to the second guiding groove 266, and the liquid is guided by the second guiding groove 266 and then discharged to the second recovery tank 267 through the second liquid discharge upper branch pipe 2612 and the second main liquid discharge pipe 2611 in sequence. The second PH sensor 273 can detect the PH value of the liquid in the second recycling tank 267 in real time, when a second output signal output by the second PH sensor 273 is not less than a second preset value, the second liquid returning conduction valve 269 is conducted and the second liquid returning pump 270 operates, and the liquid in the second recycling tank 267 is returned to the second liquid storage cavity 253 through a second liquid returning pipeline. When the second output signal output by the second PH sensor 273 is smaller than the second preset value, the second fluid returning conduction valve 269 is closed and the second fluid returning pump 270 is stopped, and the second discharge valve 272 is controlled to be opened, so that the liquid in the second recovery tank 267 is discharged through the second discharge pipe 271, and the situation that the substances such as hydrogen sulfide and lower fatty acids in the exhaust gas cannot be treated due to the low PH value of the liquid is avoided.
Referring to fig. 5 and 7, a second infusion tube 274 is communicated between the second drug storage barrel 29 and the second liquid storage cavity 253, the communication position of the second infusion tube 274 and the second drug storage barrel 29 is positioned at the bottom of the second drug storage barrel 29, and one end of the second infusion tube 274, which is far away from the second drug storage barrel 29, is vertically extended into the second liquid storage cavity 253 from the upper end of the second liquid storage cavity 253. A second on-off assembly 275 is disposed in a lower end of a second tubing 274 positioned within the second reservoir 253.
Referring to fig. 5 and 7, the second disconnect assembly 275 includes a second slide bar 2751, a second upper float ring 2752 and a second lower float ring 2753 coaxially disposed with the second slide bar 2751. The second sliding rod 2751 extends into the second infusion tube 274 and is located at the lower end of one section of the second liquid storage cavity 253, and the second sliding rod 2751 is connected to the second infusion tube 274 in a sliding manner along the vertical direction. A second upper buoyant ring 2752 is positioned below the second infusion line 274 and a second lower buoyant ring 2753 is positioned below the second upper buoyant ring 2752. A second magnetic member 2754 is coaxially fixed at a liquid outlet at the lower end of the second infusion tube 274, and the second magnetic member 2754 is annular. A second magnetic adsorbing member 2755 for adsorbing the second magnetic member 2754 to each other is coaxially fixed to the upper end of the second floating ring 2752, and the second magnetic adsorbing member 2755 is annular. During the actual use, when the liquid level height in the second stock solution chamber 253 is higher than the second and floats ring 2753 down, the buoyancy that the interior liquid of second stock solution chamber 253 produced second and floats ring 2753 and second slide bar 2751 adds the mutual adsorption affinity of second magnetic part 2754 and second magnetic adsorption part 2755, make second magnetic adsorption part 2755 adsorb in second magnetic part 2754, and then second float ring 2752 can block the lower extreme of second transfer line 274, make the liquid in the second medicine storage bucket 29 can't supply to second stock solution chamber 253 through second transfer line 274. When the liquid level in the second liquid storage cavity 253 is lower than the second lower floating ring 2753, the liquid in the second liquid storage cavity 253 does not provide buoyancy for the second lower floating ring 2753 any more, at this time, the mutual adsorption force between the second magnetic part 2754 and the second magnetic adsorption part 2755 is not enough to support the second magnetic adsorption part 2755 to be adsorbed on the second magnetic part 2754, the second magnetic adsorption part 2755 is separated from the second magnetic part 2754, the second upper floating ring 2752 is driven to be separated from the second infusion tube 274, so that the lower end of the second infusion tube 274 is conducted, at this time, the liquid in the second liquid storage barrel 29 can be supplemented to the second liquid storage cavity 253 through the second infusion tube 274, and along with the continuous rising of the liquid level in the second liquid storage cavity 253, the liquid can generate buoyancy for the second lower floating ring 2753 again, the second sliding rod 2751 is pushed to move upwards, until the second magnetic part 2755 is adsorbed on the second magnetic part 2754 again, and the second upper floating ring 2752 plugs the lower end of the second infusion tube 274 again, thereby realizing the automatic liquid supplement. The surfaces of the second magnetic member 2754, the second magnetic adsorption member 2755 and the second slide bar 2751 are coated with PTFE coatings, so that corrosion of acid liquor or alkali liquor can be effectively reduced.
Referring to fig. 1, the exhaust device 4 is a chimney, the air inlet end of the exhaust device 4 is communicated with the air outlet end of the UV photocatalytic device 3 through a pipeline, and a second induced draft fan 6 is installed on the pipeline between the exhaust device 4 and the UV photocatalytic device 3. The UV photocatalyst apparatus 3 serves to decompose organic substances in the exhaust gas. The exhaust gas passing through the first spray tower 21, the second spray tower 25, and the UV photocatalyst apparatus 3 is discharged from the exhaust apparatus 4.
Alternatively, the discharge device 4 may also be a discharge conduit.
The working principle of the embodiment is as follows: waste gas discharged from a processing production line is cooled by the waste gas cooling device 1, then introduced into the first spray tower 21 to remove substances such as ammonia gas and amines, and then introduced into the second spray tower 25 to take out hydrogen sulfide and low-grade fatty acid substances, and organic substances in the waste gas are decomposed and decomposed by the UV photocatalysis device 3 to be deodorized and finally discharged by the discharge device 4. Higher energy consumption and higher treatment cost are not needed in the whole process, the treatment aging is fast, and the secondary pollution is less.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides an aquatic products processing exhaust-gas treatment produces line which characterized in that: comprises a waste gas cooling device (1), a waste gas reaction device (2), a UV photocatalysis device (3) and a discharge device (4) which are connected in sequence;
the waste gas cooling device (1) is used for cooling waste gas discharged by a processing production line;
the waste gas reaction device (2) comprises a first spray tower (21) and a second spray tower (25) which are sequentially arranged, wherein the first spray tower (21) and the second spray tower (25) are respectively used for introducing an acidic solution and an alkaline solution for waste gas reaction;
the UV photocatalysis device (3) is used for decomposing organic substances in the exhaust gas;
the discharge device (4) is used for discharging the treated waste gas.
2. The seafood processing waste gas treatment line of claim 1, wherein: the waste gas cooling device (1) comprises an air cooler (11) and a tubular condenser (12) which are sequentially connected.
3. The aquatic product processing waste gas treatment production line of claim 2, characterized in that: shell and tube condenser (12) are connected with first cooling tower (13), be connected with first circulating pump (14) between first cooling tower (13) and shell and tube condenser (12).
4. The aquatic product processing waste gas treatment production line of claim 1, characterized in that: the first spray tower (21) comprises a first tower body (212), a first water pump (211), a first liquid storage cavity (213), a first air inlet section (214), a plurality of first packing layers (215), a first defogging layer (216) and a first air outlet section (217), wherein the first liquid storage cavity (213), the first air inlet section (214), the plurality of first packing layers (215) are sequentially arranged in the first tower body (212) from bottom to top;
the liquid inlet end of the first water pump (211) is communicated with the first liquid storage cavity (213) through a pipeline;
a first spraying assembly (220) is arranged between every two adjacent first packing layers (215), each group of first spraying assemblies (220) comprises a first main spray pipe (2201) communicated with the liquid outlet end of the first water pump (211) and a plurality of first nozzles (2202) arranged on the first main spray pipe (2201);
the second spray tower (25) comprises a second tower body (252), a second water pump (251), a second liquid storage cavity (253), a second air inlet section (254), a plurality of second packing layers (255), a second defogging layer (256) and a second air outlet section (257), wherein the second liquid storage cavity (253), the second air inlet section (254), the second packing layers (255) and the second air outlet section are sequentially arranged in the second tower body (252) from bottom to top;
the liquid inlet end of the second water pump (251) is communicated with the second liquid storage cavity (253) through a pipeline;
and a second spraying assembly (260) is arranged between every two adjacent second packing layers (255), and each group of second spraying assemblies (260) comprises a second main spray pipe (2601) communicated with the liquid outlet end of the second water pump (251) and a plurality of second nozzles (2602) arranged on the second main spray pipe (2601).
5. The seafood processing waste gas treatment line of claim 4, wherein: the first liquid storage cavity (213) is connected with a first liquid discharge pipeline (221), and a first liquid discharge valve (224) is arranged on the first liquid discharge pipeline (221);
the second liquid storage cavity (253) is connected with a second liquid discharge pipeline (261), and a second liquid discharge valve (264) is arranged on the second liquid discharge pipeline (261);
the waste gas reaction device (2) further comprises a first medicine storage barrel (28) and a second medicine storage barrel (29);
a first infusion tube (234) is communicated between the first medicine storage barrel (28) and the first liquid storage cavity (213), a first on-off component (235) is arranged on the first infusion tube (234), and the first on-off component (235) is used for controlling the first infusion tube (234) to be closed and conducted;
a second infusion tube (274) is communicated between the second medicine storage barrel (29) and the second liquid storage cavity (253), a second on-off component (275) is arranged on the second infusion tube (274), and the second on-off component (275) is used for controlling the second infusion tube (274) to be closed and on.
6. The aquatic product processing waste gas treatment production line of claim 5, characterized in that: the first liquid discharge pipeline (221) comprises a first main liquid discharge pipe (2211), a first liquid discharge upper branch pipe (2212) and a first liquid discharge lower branch pipe (2213), wherein the first liquid discharge upper branch pipe (2212) and the first liquid discharge lower branch pipe (2213) are mutually communicated with the first main liquid discharge pipe (2211), the first liquid discharge upper branch pipe (2212) and the first liquid discharge lower branch pipe (2213) are respectively communicated with the first liquid storage cavity (213), a communication port of the first liquid discharge upper branch pipe (2212) and the first liquid storage cavity (213) is a first upper branch port (222), a communication port of the first liquid discharge lower branch pipe (2213) and the first liquid storage cavity (213) is a first lower branch port (223), the first lower branch port (223) is close to the bottom of the first liquid storage cavity (213), the first upper branch port (222) is positioned above the first lower branch port (223), the first liquid discharge valve (224) is arranged on the first liquid discharge lower branch pipe (2213), and a first main liquid discharge pump (2211) is arranged on the first main liquid discharge pipe;
the second liquid discharge pipeline (261) comprises a second main liquid discharge pipe (2611), a second liquid discharge upper branch pipe (2612) and a second liquid discharge lower branch pipe (2613), the second liquid discharge upper branch pipe (2612) and the second liquid discharge lower branch pipe (2613) are communicated with the second liquid storage cavity (253) respectively, a communication port of the second liquid discharge upper branch pipe (2612) and the second liquid storage cavity (253) is a second upper branch port (262), a communication port of the second liquid discharge lower branch pipe (2613) and the second liquid storage cavity (253) is a second lower branch port (263), the second lower branch port (263) is arranged close to the bottom of the second liquid storage cavity (253), the second upper branch port (262) is positioned above the second lower branch port (263), the second liquid discharge valve (264) is arranged on the second liquid discharge lower branch pipe (2613), and a second liquid discharge pump is arranged on the second main liquid discharge pipe (2611).
7. The aquatic product processing waste gas treatment production line of claim 6, characterized in that: a first guide plate (225) is arranged in the first liquid storage cavity (213), a first guide groove (226) is formed in the upper end of the first guide plate (225), the first guide groove (226) is communicated with the first upper branch port (222), and the bottom of the first guide groove (226) is obliquely and downwards arranged towards the direction close to the first upper branch port (222);
a second guide plate (265) is arranged in the second liquid storage cavity (253), a second guide groove (266) is formed in the upper end of the second guide plate (265), the second guide groove (266) is communicated with the second upper branch opening (262), and the groove bottom of the second guide groove (266) is inclined downwards towards the direction close to the second upper branch opening (262).
8. The aquatic product processing waste gas treatment production line of claim 7, characterized in that: a section of the first infusion tube (234) positioned in the first liquid storage cavity (213) is vertically arranged;
the first on-off component (235) is located in the first liquid storage cavity (213), the first on-off component (235) comprises a first sliding rod (2351), a first upper floating ring (2352) and a first lower floating ring (2353) which are coaxially arranged on the first sliding rod (2351), the first sliding rod (2351) is vertically arranged and is connected with the first liquid conveying pipe (234) in a sliding manner, the first sliding rod (2351) slides along the vertical direction, the first upper floating ring (2352) is located at the upper end of the first lower floating ring (2353), a first magnetic adsorption part (2355) is arranged on the first upper floating ring (2352), and a first magnetic part (2354) for adsorbing the first magnetic adsorption part (2355) is arranged at the lower end of the first liquid conveying pipe (234);
when the liquid level in the first liquid storage cavity (213) is higher than the first lower floating ring (2353), the first magnetic adsorption piece (2355) and the first magnetic piece (2354) are mutually adsorbed, and the first upper floating ring (2352) is plugged at the lower end of the first infusion tube (234);
when the liquid level in the first liquid storage cavity (213) is lower than the first lower floating ring (2353), the first magnetic adsorption piece (2355) and the first magnetic piece (2354) are separated from each other, and the lower end of the first infusion tube (234) is communicated.
9. The seafood processing waste gas treatment line of claim 7, wherein: the exhaust gas reaction device (2) further comprises a controller (24);
the first main liquid discharge pipe (2211) is connected with a first recovery tank (227), the first recovery tank (227) is connected with a first liquid return pipeline, the first liquid return pipeline is communicated with the first liquid storage cavity (213), and a first liquid return conduction valve (229) and a first liquid return pump (230) are arranged on the first liquid return pipeline;
a first PH sensor (233) is arranged in the first recovery tank (227), the first PH sensor (233) is used for detecting the PH value of the liquid in the first recovery tank (227) and converting the detected PH value into a first output signal to be output to the controller (24),
the controller (24) is preset with a first preset value, when the first output signal is not greater than the first preset value, the controller (24) controls the first liquid-returning conducting valve (229) to be conducted and the first liquid-returning pump (230) to operate, and the first liquid-returning pump (230) is used for sending the liquid in the first recovery tank (227) back to the first liquid storage cavity (213);
when the first output signal is greater than the first preset value, the controller (24) controls the first fluid-return conduction valve (229) to close and the first fluid-return pump (230) to stop.
10. The aquatic product processing waste gas treatment production line of claim 9, wherein: a first discharge pipe (231) is arranged on the first recovery tank (227), and a first discharge valve (232) is arranged on the first discharge pipe (231);
when the first output signal is larger than a first preset value, the controller (24) controls the first discharge valve (232) to be opened to discharge the liquid in the first recovery tank (227).
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