CN115400435A - Waste salt evaporation recovery processing system - Google Patents
Waste salt evaporation recovery processing system Download PDFInfo
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- CN115400435A CN115400435A CN202211120762.6A CN202211120762A CN115400435A CN 115400435 A CN115400435 A CN 115400435A CN 202211120762 A CN202211120762 A CN 202211120762A CN 115400435 A CN115400435 A CN 115400435A
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- waste salt
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- evaporator
- carbon filter
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- 150000003839 salts Chemical class 0.000 title claims abstract description 101
- 239000002699 waste material Substances 0.000 title claims abstract description 95
- 238000011084 recovery Methods 0.000 title claims abstract description 49
- 238000001704 evaporation Methods 0.000 title claims abstract description 43
- 230000008020 evaporation Effects 0.000 title claims abstract description 41
- 238000012545 processing Methods 0.000 title claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 124
- 229910052799 carbon Inorganic materials 0.000 claims description 54
- 239000002912 waste gas Substances 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 239000007789 gas Substances 0.000 claims description 41
- 238000003756 stirring Methods 0.000 claims description 38
- 238000007599 discharging Methods 0.000 claims description 30
- 238000007493 shaping process Methods 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 16
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 230000003472 neutralizing effect Effects 0.000 claims description 10
- 210000000078 claw Anatomy 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 239000000126 substance Substances 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 7
- 238000006386 neutralization reaction Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 18
- 238000000465 moulding Methods 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 230000008901 benefit Effects 0.000 description 9
- 238000012546 transfer Methods 0.000 description 9
- 150000003222 pyridines Chemical class 0.000 description 8
- 238000001914 filtration Methods 0.000 description 6
- MAKFMOSBBNKPMS-UHFFFAOYSA-N 2,3-dichloropyridine Chemical compound ClC1=CC=CN=C1Cl MAKFMOSBBNKPMS-UHFFFAOYSA-N 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000002917 insecticide Substances 0.000 description 4
- XVMSFILGAMDHEY-UHFFFAOYSA-N 6-(4-aminophenyl)sulfonylpyridin-3-amine Chemical class C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=N1 XVMSFILGAMDHEY-UHFFFAOYSA-N 0.000 description 3
- 239000005886 Chlorantraniliprole Substances 0.000 description 3
- PSOVNZZNOMJUBI-UHFFFAOYSA-N chlorantraniliprole Chemical compound CNC(=O)C1=CC(Cl)=CC(C)=C1NC(=O)C1=CC(Br)=NN1C1=NC=CC=C1Cl PSOVNZZNOMJUBI-UHFFFAOYSA-N 0.000 description 3
- 229940087646 methanolamine Drugs 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- PVMNPAUTCMBOMO-UHFFFAOYSA-N 4-chloropyridine Chemical compound ClC1=CC=NC=C1 PVMNPAUTCMBOMO-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009288 screen filtration Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- PXMNMQRDXWABCY-UHFFFAOYSA-N 1-(4-chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol Chemical compound C1=NC=NN1CC(O)(C(C)(C)C)CCC1=CC=C(Cl)C=C1 PXMNMQRDXWABCY-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000005889 Cyantraniliprole Substances 0.000 description 1
- 239000005758 Cyprodinil Substances 0.000 description 1
- 239000005839 Tebuconazole Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- -1 chloropyridine (polychlorinated pyridine Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- DVBUIBGJRQBEDP-UHFFFAOYSA-N cyantraniliprole Chemical compound CNC(=O)C1=CC(C#N)=CC(C)=C1NC(=O)C1=CC(Br)=NN1C1=NC=CC=C1Cl DVBUIBGJRQBEDP-UHFFFAOYSA-N 0.000 description 1
- HAORKNGNJCEJBX-UHFFFAOYSA-N cyprodinil Chemical compound N=1C(C)=CC(C2CC2)=NC=1NC1=CC=CC=C1 HAORKNGNJCEJBX-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- FTQWRYSLUYAIRQ-UHFFFAOYSA-N n-[(octadecanoylamino)methyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCNC(=O)CCCCCCCCCCCCCCCCC FTQWRYSLUYAIRQ-UHFFFAOYSA-N 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
- B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
- B01D1/225—In rotating vessels; vessels with movable parts containing a rotor with blades or scrapers
- B01D1/226—In rotating vessels; vessels with movable parts containing a rotor with blades or scrapers in the form of a screw or with helical blade members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0041—Use of fluids
- B01D1/0052—Use of a liquid transfer medium or intermediate fluid, e.g. bain-marie
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/06—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to the technical field of chemical equipment, in particular to a waste salt evaporation recovery treatment system, which comprises: one-level vertical evaporator, second grade horizontal evaporator, waste salt cooling system, the inside fixed mounting of one-level vertical evaporator has first conduction oil pipe, the outside both sides fixed mounting in top of one-level vertical evaporator has neutralization liquid feed liquor pipe, and the inside fixed mounting in top has first demister, the inside fixed mounting of second grade horizontal evaporator has second conduction oil pipe, one side top of second conduction oil pipe is provided with first feeder hopper, and the opposite side top is provided with the steam outlet duct. This waste salt evaporation recovery processing system, functional variety collects evaporation, cooling, adsorbs etc. as an organic whole to each stage processing and treatment step is clear, and waste salt treatment process environmental protection is harmless, and recovery processing efficiency is high.
Description
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a waste salt evaporation recovery treatment system.
Background
2,3-dichloropyridine is an important chemical intermediate raw material which is widely applied to the fields of pesticides, medicine production and the like. 2,3-dichloropyridine is a white to light yellow solid, and 2,3-dichloropyridine is mainly used as intermediate of insecticide chlorantraniliprole, cyantraniliprole, cyprodinil, tebuconazole and other products, especially insecticide chlorantraniliprole, and becomes the most successful bisamide insecticide. Therefore, the 2,3-dichloropyridine serving as the key intermediate of the chlorantraniliprole insecticide has excellent market prospect and great market demand at home and abroad, and becomes a research focus in related fields at home and abroad.
2,3-dichloropyridine produces a large amount of waste organic-containing salts in the process and is mixed with chloropyridine (polychlorinated pyridine, monochloropyridine, etc.) impurities. With the development of important fine chemical and intermediate products, the yield of waste salt is continuously increased. Because the waste salt contains harmful substances, the waste salt cannot be directly used as an industrial raw material, the waste salt is difficult to dispose and high in cost, and a large amount of land is occupied because many enterprises continuously build warehouses for storage. Therefore, how to treat the waste and miscellaneous salts in a harmless way and recycle the waste and miscellaneous salts is a great problem which needs to be solved urgently.
At present, most of chemical waste salt treatment methods adopt methods of extracting organic matters or evaporating: the waste salt is extracted by a solvent to remove toxic and harmful chemical substances in the waste salt as much as possible, however, the extraction of the organic substances or the evaporation method has the following technical problems:
(1) The application range is small, and the extractant can generate secondary pollution;
(2) Some harmful substances still remain in the waste salt after treatment, which is not beneficial to recycling and is harmful to human health;
(3) In the process of treating waste salt, the generated harmful gas can not be treated in time and is directly discharged, thus causing environmental pollution.
(4) Conventional evaporation equipment such as a triple-effect evaporator, a rake dryer, a hollow blade dryer, a scraper film evaporator and the like can cause the problem that the whole device is unstable in operation because salt crystallization pipelines are blocked or plate salts are formed and cannot be discharged.
Disclosure of Invention
The invention mainly aims to overcome the defects in the prior art and provide a waste salt evaporation recovery treatment system. The equipment has the advantages of multiple functions, integration of evaporation, cooling, adsorption and the like, clear processing steps in each stage and high recovery treatment efficiency.
The technical scheme adopted by the invention for realizing the technical purpose is as follows: waste salt evaporation recovery processing system includes:
a primary vertical evaporator, a secondary horizontal evaporator and a waste salt cooling system;
a first heat conduction oil pipe is fixedly installed inside the first-stage vertical evaporator, heat conduction oil enters through the left side of the first heat conduction oil pipe and is discharged from the right side of the first heat conduction oil pipe, neutralizing liquid inlet pipes are fixedly installed on two sides of the outer portion of the top end of the first-stage vertical evaporator, a first demister is fixedly installed inside the top end of the first-stage vertical evaporator, neutralizing liquid directly passes through the first demister through the neutralizing liquid inlet pipes and enters the inside of the first-stage vertical evaporator, light component materials such as methanol and triethylamine in the neutralizing liquid are all evaporated, a solvent recovery tower is arranged at the top of the first-stage vertical evaporator, after evaporation, a gas phase firstly passes through the first demister and enters the solvent recovery tower to be recovered, a second demister is arranged on the inner wall of the solvent recovery tower, a gas phase outlet is formed in one side of the solvent recovery tower, after solvent recovery is carried out through the solvent recovery tower, the gas phase is discharged from the gas phase outlet through the second demister, the first demister and the first demister are wire mesh defoamers and enter a second horizontal type evaporator through a first-phase locked foam-containing waste salt lock hopper; the first lock hopper outlet is communicated with the first feed hopper; the purpose of arranging a wire mesh demister at the gas phase outlet is to prevent sodium chloride from being brought into the downstream tower.
The bottom end part of the primary vertical evaporator is arranged to be a single-spiral discharging structure, the single-spiral discharging structure comprises a single spiral rod and a discharging pipe, one end of the single spiral rod penetrates through the inside of the primary vertical evaporator, the top end of the single spiral rod is provided with a motor for driving the single spiral rod to rotate, and the single spiral rod rotates to drive waste salt in the discharging pipe to be discharged into the first lock hopper; the single screw rod is driven to rotate by the motor, so that waste salt in the primary vertical evaporator is discharged through the discharge pipe;
the two-stage horizontal evaporator is a horizontal double-shaft self-cleaning dryer, two shafts of the two-stage horizontal evaporator are respectively provided with four claws and five claws, a main shaft and a paddle blade plate of the two-stage horizontal evaporator are both of a hollow structure, the horizontal double-shaft self-cleaning dryer has a curing and crushing function and is beneficial to processing treatment such as waste salt evaporation, a second heat-conducting oil pipe is fixedly arranged inside the two-stage horizontal evaporator, heat-conducting oil enters from the lower part of the right side of the second heat-conducting oil pipe and is discharged from the upper part of the left side of the second heat-conducting oil pipe, the two-stage horizontal evaporator is operated under negative pressure, polychlorinated pyridine in waste salt containing polychlorinated pyridine is evaporated, a first feed hopper is arranged at the top of one side of the second heat-conducting oil pipe, a steam outlet pipe is arranged at the top of the other side of the second heat-conducting oil pipe, one end of the steam outlet pipe is connected with a condensing system, the gas phase of the polychlorinated pyridine enters the condensing system, and a second lock hopper is arranged at the bottom of one side of the two-stage horizontal evaporator; waste salt enters the waste salt cooling system after being isolated by the second lock hopper, an outlet of the second lock hopper is communicated with the second feed hopper, and waste salt in the second lock hopper enters the inside of the shell through the second feed hopper.
The waste salt cooling system comprises a first stirring roller, a second stirring roller, a shell, a circulating water inlet, a circulating water outlet, a second feed hopper, an exhaust gas outlet and a circulating water shell;
the waste salt cooling system is characterized in that a first stirring roll and a second stirring roll are arranged inside the shell, the top ends of the first stirring roll and the second stirring roll are driven by a motor, the first stirring roll and the second stirring roll are driven by the motor to rotate to stir waste salt to accelerate heat dissipation, and meanwhile discharging is facilitated, the first stirring roll and the second stirring roll are fixedly installed on two sides inside the shell respectively, the first stirring roll and the second stirring roll are arranged in a staggered mode, waste salt can be stirred more sufficiently and can be dissipated more rapidly, a second feeding hopper is arranged on one side of the top of the shell, a waste gas outlet is formed in the other side of the top of the shell, a closed discharging cover is arranged at the bottom of the shell and prevents generated waste gas from being discharged into the atmosphere, so that pollution is caused, a material containing barrel is placed inside the closed discharging cover and is used for containing waste salt, in addition, the waste salt cooling system is used for a time longer than 1h, the outlet temperature is smaller than 60 ℃, so that barrel replacement operation is facilitated, and operating personnel are prevented from being scalded. The closed discharging cover and the waste gas outlet are both communicated with a waste gas treatment pipeline, and finally generated waste gas is conveyed through the waste gas treatment pipeline and then is treated uniformly.
The outer wall of casing is provided with the circulating water casing, and the circulating water casing is for reducing the outside temperature of shell, bottom one side of circulating water casing is provided with the circulating water inlet, and top one side is provided with the circulating water delivery port for through continuous hydrologic cycle, the circulating water casing is in low temperature state all the time, does benefit to waste salt cooling system's cooling.
Preferably, the first heat transfer oil pipe is arranged in a shape like a Chinese character 'ri' in the first-level vertical evaporator, the second heat transfer oil pipe is spirally arranged in the second-level horizontal evaporator, and the shape like the Chinese character 'ri' is arranged to increase the contact area of the heat transfer oil in the evaporator, so that the evaporation effect of the evaporator is better.
Preferably, the steam outlet pipe is provided with a plurality of branches, the use of the plurality of groups of branches is convenient for gas phase outlet connection with the second-stage horizontal evaporator, the top ends of the plurality of branches of steam outlet pipes are communicated, and the communication is convenient for uniform conveying treatment of steam.
Preferably, the inside of first lock fill and second lock fill all is provided with the air hammer, and first lock fill and second lock fill inner wall should polish, and the suggestion roughness is Ra1.0, measures such as supporting air hammer prevent that the material from bridging.
Preferably, the shell is arranged in a triangular structure, the triangular structure is convenient for discharging waste salt, and two sides of the shell are inclined to facilitate discharging the waste salt into the material containing barrel.
Preferably, one end of the waste gas treatment pipeline is provided with two branches, and the two branches are respectively connected with the closed discharging cover and the waste gas outlet in a sealing manner; the waste gas treatment pipeline is provided with two branches, so that the waste gas can be conveyed uniformly for subsequent treatment.
Preferably, the other end of the waste gas treatment pipeline is provided with an activated carbon adsorption system, waste gas is treated by the activated carbon adsorption system to meet the emission requirement, and the activated carbon adsorption system comprises a diversion pipeline, a gas outlet nozzle, a cylinder, a cover plate, a rotating rod, a shaping shell, a first activated carbon filter screen, a high-pressure air pump, a bearing, a second activated carbon filter screen, a rolling groove, a roller, a first flow guide hole, a second flow guide hole, a third activated carbon filter screen and an air exhaust fan;
the top and the bottom of the cylinder are in threaded connection with cover plates, and the cover plates are in threaded connection with the cylinder, so that the cylinder is convenient to mount and dismount and is also beneficial to maintenance; a rotating rod is rotatably connected between the two groups of cover plates, six groups of first active carbon filter screens are uniformly arranged on the outer wall of the rotating rod, the outer wall of each first active carbon filter screen is fixedly connected with the rotating rod through a shaping shell, the shaping shell is used for maintaining the shape of the first active carbon filter screen and avoiding the problem that the first active carbon filter screen is easy to deform, and one side of the shaping shell is in contact with the inner wall of the cylinder; moulding shell one side and drum inner wall carry out polishing treatment for when moulding shell rotates, moulding shell one side is less with drum inner wall frictional force, is favorable to moulding shell and the rotation of first active carbon filter screen.
The exhaust-gas treatment pipeline other end is provided with high-pressure aspiration pump, and high-pressure aspiration pump increases the flow velocity of waste gas, the one end of high-pressure aspiration pump is provided with the reposition of redundant personnel pipeline, one side fixed mounting of reposition of redundant personnel pipeline has six sets of nozzles, nozzle fixed mounting in the inside of drum, the waste gas that the high-pressure aspiration pump was taken out enters into the inside of drum through reposition of redundant personnel pipeline and six sets of nozzles for waste gas dashes on the surface at first active carbon filter screen, thereby can make first active carbon filter screen and moulding shell rotate.
The inside second water conservancy diversion hole of having seted up of drum, the inside in second water conservancy diversion hole sets up the third active carbon filter screen, and the third active carbon filter screen is in order to carry out secondary filter with first active carbon filter screen filtration back gas and handles, reaches the purpose of high efficiency processing waste gas, the outside of third active carbon filter screen is provided with air exhaust fan, air exhaust fan back is through setting up mounting bracket and third active carbon filter screen fixed connection, and air exhaust fan is in order to change the flow direction of first active carbon filter screen filtration back gas for gas discharges.
Preferably, the both ends of dwang all are provided with the bearing, and the cover has the second active carbon filter screen, and the bearing is used for the both ends of fixed dwang, simultaneously makes things convenient for in the rotation of dwang, and waste gas and bearing direct contact are avoided to the second active carbon filter screen to avoid the bearing to corrode easily, the second active carbon filter screen is located bearing one side, and the outer wall is provided with the set casing, and the set casing is used for moulding the parcel with the second active carbon filter screen, the second active carbon filter screen cup joints in the outer wall of dwang through the set casing, also carries out polishing treatment between the dwang set casing, thereby reduces the friction, bearing and second active carbon filter screen all set up in the inside middle-end of apron.
Preferably, the upper end and the lower end of one side of the shaping shell are provided with rollers, rolling grooves are formed in the upper end and the lower end of the cylinder, the rollers and the rolling grooves are correspondingly arranged, the rollers are movably connected in the rolling grooves, and the first active carbon filter screen and the shaping shell are conveniently guided by rotating tracks through the rollers and the rolling grooves.
Preferably, six groups of first flow guide holes are formed in the cylinder, the first flow guide holes are positioned on the left side of the second flow guide holes, and the air outlet nozzle is positioned in the first flow guide holes; first water conservancy diversion hole and the equal slope setting in second water conservancy diversion hole, first water conservancy diversion hole and the slope setting in second water conservancy diversion hole do benefit to the air outlet nozzle and dash the waste gas on first active carbon filter screen surface for the effect that realizes the wind direction to do benefit to and promote first active carbon filter screen and carry out slow rotation, on the other hand second water conservancy diversion hole slope also makes things convenient for the discharge in once filtering back gas.
Compared with the prior art, the invention has the beneficial effects that: according to the waste salt evaporation recovery treatment system, the components such as the primary vertical evaporator, the secondary horizontal evaporator and the like are arranged, the evaporation principle is adopted, the use of other reagents can be effectively avoided, other harmful substances cannot be generated through reaction in the waste salt treatment process, and the system is environment-friendly and harmless;
and, the first-level vertical evaporator (scraper blade film evaporator) sets up to single spiral discharge structure for the bottom part, rotates through motor drive single hob for the inside waste salt of first-level vertical evaporator discharges through the discharging pipe, guarantees that the ejection of compact is smooth and easy, and second grade horizontal evaporator (horizontal biax automatically cleaning desiccator) has solidification crushing function through the biax design of self, can be better assurance salt crystal form, and first-level vertical evaporator and second grade horizontal evaporator can prevent that the barrel from blockking up and appearing the phenomenon of plate salt, make the better stability of overall installation operation.
This waste salt evaporation recovery processing system adopts twice evaporation processing to handle, can get rid of the harmful substance in the waste salt effectively for do not contain harmful substance in the waste salt, and rethread waste salt cooling system's setting can make the waste salt of final processing directly carry out recovery processing after the cooling, and the cooling effect is good, can accelerate the recovery speed of waste salt, and evaporation stage solid, gaseous material are clear, and each stage carries out the independent processing respectively, and recovery processing efficiency is high.
This waste salt evaporation recovery processing system, can adsorb the waste gas that produces in the waste salt processing procedure and handle, the environmental protection is discharged, setting through the activated carbon adsorption system, can be so that waste gas carries out the prefiltration absorption between per two sets of first activated carbon filter screens, make waste gas tentatively adsorb through first activated carbon filter screen and filter, utilize air exhaust fan to take prefilter's gas out fast, cooperate the third activated carbon filter screen to carry out secondary filter, reach emission standard.
In a word, the waste salt evaporation recovery treatment system has multiple functions, integrates evaporation, cooling, adsorption and the like into a whole, has clear processing steps in each stage, is environment-friendly and harmless in the waste salt treatment process, and has high recovery treatment efficiency.
Drawings
FIG. 1 is a schematic view of the connection relationship of the waste salt evaporation recovery processing system.
FIG. 2 is a schematic diagram of a bottom end single-spiral discharging structure of a primary vertical evaporator.
FIG. 3 is a schematic side sectional view of a two-stage horizontal evaporator.
FIG. 4 is an enlarged schematic view of a waste salt cooling system.
Fig. 5 is an enlarged schematic view of the activated carbon adsorption system.
FIG. 6 is a schematic perspective view of a part of the components of the activated carbon adsorption system.
Fig. 7 is a schematic top view of an activated carbon adsorption system.
Fig. 8 is an enlarged schematic view of a portion a in fig. 7.
Fig. 9 is a right-side structural schematic view of the third activated carbon filter screen and the air exhaust fan.
Wherein:
1-first-stage vertical evaporator; 101-a first heat transfer oil pipe; 102-a neutralizing liquid inlet pipe; 103-a first demister; 104-a second demister; 105-a solvent recovery column; 106-gas phase outlet; 107-first lock hopper; 2-a two-stage horizontal evaporator; 201-steam outlet pipe; 202-a second heat transfer oil pipe; 203-a first feed hopper; 204-a second lock hopper; 3-a waste salt cooling system; 301-a first stirring roller; 302-a second stirring roller; 303-a housing; 304-a circulating water inlet; 305-a circulating water outlet; 306-a second feed hopper; 307-exhaust gas outlet; 308-a circulating water housing; 4-an activated carbon adsorption system; 401-a shunt line; 402-an air outlet nozzle; 403-cylinder; 404-a cover plate; 405-rotating rods; 406-a shaped housing; 407-a first activated carbon filter screen; 408-a high pressure air pump; 409-a bearing; 410-a second activated carbon filter screen; 411-rolling groove; 412-a roller; 413-first flow guide holes; 414-second flow guiding holes; 415-a third activated carbon filter screen; 416-an air extractor; 5, sealing a discharging cover; 6-containing bucket; 7-waste gas treatment pipeline.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example 1:
referring to fig. 1-3, the waste salt evaporation recovery processing system comprises:
a primary vertical evaporator 1, a secondary horizontal evaporator 2 and a waste salt cooling system 3;
the first-stage vertical evaporator 1 is a scraper film evaporator, a first heat conduction oil pipe 101 is fixedly installed inside the first-stage vertical evaporator 1, heat conduction oil enters from the left side of the first heat conduction oil pipe 101 and is discharged from the right side of the first heat conduction oil pipe 101, a neutralizing liquid inlet pipe 102 is fixedly installed on two sides of the outer portion of the top end of the first-stage vertical evaporator 1, a first demister 103 is fixedly installed inside the top end of the first-stage vertical evaporator 1, neutralizing liquid directly penetrates through the first demister 103 through the neutralizing liquid inlet pipe 102 and enters the inside of the first-stage vertical evaporator 1, all light component materials such as methanol and triethylamine in the neutralizing liquid are evaporated, a solvent recovery tower 105 is arranged at the top of the first-stage vertical evaporator 1, after evaporation, a gas phase firstly enters the solvent recovery tower 105 through the first demister 103 to be recovered, a second demister 104 is arranged on the inner wall of the solvent recovery tower 105, a gas phase outlet 106 is arranged on one side of the solvent recovery tower 105, the gas phase is discharged from the gas phase outlet 106 through the second demister 104 after solvent recovery tower 105, the first demister 103 and the first-stage vertical evaporator 104 and a two-phase chlorine-containing slag removal bucket 107 is formed by a two-phase chlorine-wire mesh evaporator 2205, and a second-free-metal wire mesh evaporator 107 is arranged at the bottom of the first-metal wire evaporator 1; the outlet of the first lock hopper 107 is communicated with the first feed hopper 203; the purpose of arranging a wire mesh demister at the gas phase outlet is to prevent sodium chloride from being brought into the downstream tower.
The specific process of conveying the waste salt by the primary vertical evaporator is as follows: the bottom end part of the primary vertical evaporator is arranged to be a single-spiral discharging structure, the single-spiral discharging structure comprises a single spiral rod and a discharging pipe, one end of the single spiral rod penetrates through the inside of the primary vertical evaporator, a motor is arranged at the top end of the single spiral rod to drive the single spiral rod to rotate, and the single spiral rod rotates to drive waste salt in the discharging pipe to be discharged into the first lock hopper; the single screw rod is driven by the motor to rotate, so that waste salt in the primary vertical evaporator is discharged through the discharge pipe.
The horizontal evaporimeter of second grade is horizontal biax automatically cleaning desiccator, horizontal biax automatically cleaning desiccator is through the biax design of self, be four claws and five claws respectively, the biax is clean broken each other, solidification crushing function has, do benefit to processing such as evaporation of useless salt, also pass through the biax ejection of compact simultaneously when the ejection of compact, discharge speed is fast, high efficiency, and main shaft and the hollow setting of paddle board, can make the conduction oil flow through to the other end discharge from the hollow one end of main shaft and paddle board, can increase heat transfer area and improve evaporation efficiency. The inside fixed mounting of second grade horizontal evaporator 2 has second conduction oil pipe 202, the conduction oil gets into through second conduction oil pipe 202 right side below, discharge through second conduction oil pipe 202 left side top, 2 negative pressure operations of second grade horizontal evaporator, polychlorinated pyridine in the waste salt that contains polychlorinated pyridine is evaporated out, one side top of second conduction oil pipe 202 is provided with first feeder hopper 203, and the opposite side top is provided with steam outlet duct 201, condensing system (not drawn in the figure) is connected to steam outlet duct 201 one end, polychlorinated pyridine gaseous phase gets into condensing system, steam outlet duct 201 is provided with a plurality of branches, use multiunit branch to conveniently carry out gaseous phase exit linkage with second grade horizontal evaporator 2, the top of a plurality of branches steam outlet duct 201 all communicates the setting, the intercommunication setting is conveniently to carry out unified transport processing with steam. A second lock hopper 204 is arranged at the bottom of one side of the second-stage horizontal evaporator 2; the waste salt enters the waste salt cooling system 3 after being isolated by the second locking hopper 204, the outlet of the second locking hopper 204 is communicated with the second feed hopper 306, and the waste salt in the second locking hopper 204 enters the inside of the shell 303 through the second feed hopper 306.
Specifically, the first heat transfer oil pipe 101 is arranged in a shape like a Chinese character 'ri' inside the first-level vertical evaporator 1, the second heat transfer oil pipe 202 is arranged in a spiral manner inside the second-level horizontal evaporator 2, and the arrangement like the Chinese character 'ri' is for increasing the contact area of the heat transfer oil inside the evaporator, so that the evaporation effect of the evaporator is better.
In addition, the insides of the first locking bucket 107 and the second locking bucket 204 are both provided with air hammers, the inner walls of the locking buckets of the first locking bucket 107 and the second locking bucket 204 are polished, the roughness is Ra1.0, and measures such as matched air hammers and the like are suggested to prevent the bridging of materials.
Example 2:
referring to fig. 1-4, in the waste salt evaporation recovery processing system of the above embodiment, the waste salt cooling system 3 includes a first stirring roller 301, a second stirring roller 302, a housing 303, a circulating water inlet 304, a circulating water outlet 305, a second feed hopper 306, an exhaust gas outlet 307, and a circulating water housing 308;
the first stirring roller 301 and the second stirring roller 302 are arranged in the shell 303, the shell 303 is arranged in a triangular structure, the triangular structure is convenient for discharging waste salt, and two sides of the shell are inclined to facilitate discharging the waste salt into the material containing barrel 6. The top ends of the first stirring roller 301 and the second stirring roller 302 are driven by motors, the first stirring roller 301 and the second stirring roller 302 are driven by the motors to rotate to stir waste salt to accelerate heat dissipation, and meanwhile, discharging is facilitated, the first stirring roller 301 and the second stirring roller 302 are respectively and fixedly installed on two sides of the inside of the shell 303, the first stirring roller 301 and the second stirring roller 302 are arranged in a staggered mode, waste salt can be stirred more sufficiently and can dissipate heat more quickly, a second feeding hopper 306 is arranged on one side of the top of the shell 303, a waste gas outlet 307 is formed in the other side of the top of the shell 303, a closed discharging cover 5 is arranged at the bottom of the shell 303, the closed discharging cover 5 prevents generated waste gas from being discharged into the atmosphere, so that pollution is caused, a material containing barrel 6 is placed inside the closed discharging cover 5, and the material containing barrel 6 is used for containing waste salt. The retention time of the waste salt in the waste salt cooling system 3 is more than 1h, the outlet temperature is less than 60 ℃, the barrel replacement operation is convenient, and the scalding of operators is prevented.
The outer wall of casing 303 is provided with circulating water casing 308, and circulating water casing 308 is for reducing the outside temperature of casing 303, and bottom one side of circulating water casing 308 is provided with circulating water inlet 304, and top one side is provided with circulating water delivery port 305, through continuous hydrologic cycle for circulating water casing 308 is in the low temperature state all the time, does benefit to waste salt cooling system 3's cooling.
The sealed discharge cover 5 and the exhaust gas outlet 307 are both communicated with an exhaust gas treatment pipeline 7, and finally generated exhaust gas is conveyed through the exhaust gas treatment pipeline 7 and then is treated uniformly. One end of the waste gas treatment pipeline 7 is provided with two branches which are respectively connected with the closed discharging cover 5 and the waste gas outlet 307 in a sealing way; the waste gas treatment pipeline 7 is provided with two branches to facilitate the uniform conveying of waste gas for subsequent treatment.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
Example 3:
referring to fig. 1 and fig. 5 to 9, on the basis of the above embodiment, in the waste salt evaporation recovery processing system, the other end of the waste gas processing pipeline 7 is provided with the activated carbon adsorption system 4, the waste gas is processed by the activated carbon adsorption system 4, so as to meet the emission requirement, the activated carbon adsorption system 4 includes a diversion pipeline 401, a gas outlet nozzle 402, a cylinder 403, a cover plate 404, a rotating rod 405, a shaping housing 406, a first activated carbon filter screen 407, a high-pressure air pump 408, a bearing 409, a second activated carbon filter screen 410, a rolling groove 411, a roller 412, a first guide hole 413, a second guide hole 414, a third activated carbon filter screen 415, and an air exhaust fan 416;
the top and the bottom of the cylinder 403 are in threaded connection with a cover plate 404, and the cover plate 404 is in threaded connection with the cylinder 403, so that the installation and the disassembly are convenient, and the maintenance is also facilitated; a rotating rod 405 is rotatably connected between the two groups of cover plates 404, six groups of first activated carbon filter screens 407 are uniformly arranged on the outer wall of the rotating rod 405, the outer wall of each first activated carbon filter screen 407 is fixedly connected with the rotating rod 405 through a shaping shell 406, the shaping shell 406 is used for maintaining the shape of the first activated carbon filter screen 407, the problem that the first activated carbon filter screen 407 is easy to deform is avoided, and one side of the shaping shell 406 is in contact with the inner wall of the cylinder 403; polishing is performed on one side of the shaping shell 406 and the inner wall of the cylinder 403, so that when the shaping shell 406 rotates, the friction force between one side of the shaping shell 406 and the inner wall of the cylinder 403 is small, which is beneficial to the rotation of the shaping shell 406 and the first activated carbon filter screen 407.
Specifically, both ends of dwang 405 all are provided with bearing 409, and the cover has second active carbon filter screen 410, bearing 409 is used for the both ends of fixed dwang 405, simultaneously, conveniently in the rotation of dwang 405, second active carbon filter screen 410 avoids waste gas and bearing 409 direct contact, thereby avoid bearing 409 to corrode easily, second active carbon filter screen 410 is located bearing 409 one side, and the outer wall is provided with the set casing, the set casing is used for carrying out moulding parcel with second active carbon filter screen 410, second active carbon filter screen 410 cup joints in the outer wall of dwang 405 through the set casing, also polish between the dwang 405 set casing and handle, thereby reduce friction, bearing 409 and second active carbon filter screen 410 all set up in the inside middle-end of apron 404.
The other end of the exhaust gas treatment pipeline 7 is provided with a high-pressure air pump 408, the high-pressure air pump 408 increases the flow speed of the exhaust gas, one end of the high-pressure air pump 408 is provided with a shunt pipeline 401, one side of the shunt pipeline 401 is fixedly provided with six groups of air outlet nozzles 402, the air outlet nozzles 402 are fixedly arranged in the cylinder 403, the exhaust gas pumped out by the high-pressure air pump 408 enters the cylinder 403 through the shunt pipeline 401 and the six groups of air outlet nozzles 402, so that the exhaust gas rushes to the surface of the first active carbon filter screen 407, and the first active carbon filter screen 407 and the molding shell 406 can rotate.
The inside second water conservancy diversion hole 414 of having seted up of drum 403, the inside of second water conservancy diversion hole 414 sets up third active carbon filter screen 415, third active carbon filter screen 415 is for carrying out secondary filter with first active carbon filter screen 407 filtration back gas and handles, reach the purpose of high efficiency processing waste gas, the outside of third active carbon filter screen 415 is provided with air exhaust fan 416, air exhaust fan 416 back is through setting up mounting bracket and third active carbon filter screen 415 fixed connection, air exhaust fan 416 is for changing the gaseous flow direction after first active carbon filter screen 407 filters, make gas discharge.
Specifically, six groups of first guiding holes 413 are formed in the cylinder 403, the first guiding holes 413 are located on the left side of the second guiding holes 414, and the air outlet nozzle 402 is located inside the first guiding holes 413; first water conservancy diversion hole 413 and second water conservancy diversion hole 414 all incline to set up, and first water conservancy diversion hole 413 and the incline to set up of second water conservancy diversion hole 414 are for realizing the effect of wind direction, do benefit to air outlet nozzle 402 and dash the waste gas on first active carbon filter screen 407 surface to do benefit to and promote first active carbon filter screen 407 and carry out slow rotation, on the other hand second water conservancy diversion hole 414 inclines also to make things convenient for in the discharge of once filtering back gas.
In addition, the upper end and the lower end of one side of the shaping housing 406 are provided with the rollers 412, the rolling grooves 411 are formed in the upper end and the lower end of the cylinder 403, the rollers 412 are arranged corresponding to the rolling grooves 411, and the rollers 412 are located in the rolling grooves 411 and movably connected with each other, so that the first activated carbon filter screen 407 and the shaping housing 406 can be conveniently guided along the rotation track through the arrangement of the rollers 412 and the rolling grooves 411.
Finally, the method particularly provides that monochloropyridine and polychlorinated pyridine have certain pungent odor, a waste salt evaporation recovery treatment system is completely closed, and an end enclosure structure is adopted at an inlet or a joint.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
The working principle and the specific use flow of the waste salt evaporation recovery treatment system are as follows: a neutralization liquid pump of the neutralization tank sends the neutralization liquid to the inside of a primary vertical evaporator 1 in a waste salt evaporation recovery processing system, light-component materials such as methanol and triethylamine in the neutralization liquid are all evaporated, a gas phase enters a solvent recovery tower 105, and waste salt containing polychlorinated pyridine enters a secondary horizontal evaporator 2 after being isolated by a first lock hopper 107. The secondary horizontal evaporator 2 is operated under negative pressure, polychlorinated pyridine in waste salt containing polychlorinated pyridine is evaporated, a polychlorinated pyridine gas phase enters a condensing system through a steam outlet pipe 201, the waste salt enters a waste salt cooling system 3 after being isolated by a second lock hopper 204, and is cooled by the waste salt cooling system 3, and the waste salt is filled into a material containing barrel 6 and is sent out as solid waste for treatment;
in addition, the waste gas of production is through high-pressure aspiration pump 408 suction to first active carbon filter screen 407 on preliminary filtration, simultaneously when waste gas and first active carbon filter screen 407 contact, under the punching press of waste gas, can make first active carbon filter screen 407 and moulding shell 406 move, cooperate gyro wheel 412 and slot rolling 411 to carry out the guide of rotation orbit with first active carbon filter screen 407 and moulding shell 406, thereby make waste gas carry out preliminary filtration absorption between per two sets of first active carbon filter screen 407, treat that first active carbon filter screen 407 rotates second water conservancy diversion hole 414 position and be, take preliminary filterable gas out fast at air exhaust fan 416, carry out secondary filtration at cooperation third active carbon filter screen 415, reach emission standard.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures, equivalent processes, or equivalent functional transformations made in the contents of the present specification and the accompanying drawings, which are included in the scope of the present patent.
Claims (9)
1. Waste salt evaporation recovery processing system, its characterized in that includes:
a primary vertical evaporator (1), a secondary horizontal evaporator (2) and a waste salt cooling system (3);
the device comprises a primary vertical evaporator (1), a first heat conducting oil pipe (101) is fixedly installed inside the primary vertical evaporator (1), a neutralizing liquid inlet pipe (102) is fixedly installed on two sides of the outer portion of the top end of the primary vertical evaporator (1), a first demister (103) is fixedly installed inside the top end of the primary vertical evaporator (1), a solvent recovery tower (105) is arranged at the top of the primary vertical evaporator (1), a second demister (104) is arranged on the inner wall of the solvent recovery tower (105), a gas phase outlet (106) is arranged on one side of the solvent recovery tower (105), and a first locking hopper (107) is arranged at the bottom of the primary vertical evaporator (1);
the bottom end part of the primary vertical evaporator (1) is arranged to be a single-spiral discharging structure, the single-spiral discharging structure comprises a single spiral rod and a discharging pipe, one end of the single spiral rod penetrates through the inside of the primary vertical evaporator (1), the top end of the single spiral rod is provided with a motor for driving the single spiral rod to rotate, and the single spiral rod rotates to drive waste salt in the discharging pipe to be discharged into the first lock hopper (107);
the two-stage horizontal evaporator (2) is a horizontal double-shaft self-cleaning dryer, two shafts of the two-stage horizontal evaporator (2) are respectively provided with four claws and five claws, a main shaft and a paddle blade plate of the two-stage horizontal evaporator (2) are both provided with a hollow structure, a second heat conduction oil pipe (202) is fixedly installed inside the two-stage horizontal evaporator (2), a first feed hopper (203) is arranged at the top of one side of the second heat conduction oil pipe (202), a steam outlet pipe (201) is arranged at the top of the other side of the second heat conduction oil pipe, and a second lock hopper (204) is arranged at the bottom of one side of the two-stage horizontal evaporator (2);
the outlet of the first lock hopper (107) is communicated with the first feed hopper (203);
the waste salt cooling system (3) comprises a first stirring roller (301), a second stirring roller (302), a shell (303), a circulating water inlet (304), a circulating water outlet (305), a second feed hopper (306), an exhaust gas outlet (307) and a circulating water shell (308);
a first stirring roller (301) and a second stirring roller (302) are arranged in the shell (303), the top ends of the first stirring roller (301) and the second stirring roller (302) are driven by motors, the first stirring roller (301) and the second stirring roller (302) are fixedly installed on two sides in the shell (303) respectively, the first stirring roller (301) and the second stirring roller (302) are arranged in a staggered mode, a second feed hopper (306) is arranged on one side of the top of the shell (303), a waste gas outlet (307) is formed in the other side of the top of the shell (303), a sealed discharge cover (5) is arranged at the bottom of the shell (303), a material containing barrel (6) is placed in the sealed discharge cover (5), and the sealed discharge cover (5) and the waste gas outlet (307) are both communicated with a waste gas treatment pipeline (7);
a circulating water shell (308) is arranged on the outer wall of the shell (303), a circulating water inlet (304) is formed in one side of the bottom end of the circulating water shell (308), and a circulating water outlet (305) is formed in one side of the top end of the circulating water shell;
the outlet of the second lock hopper (204) is communicated with the second feed hopper (306).
2. The waste salt evaporation recovery processing system of claim 1, wherein: the first heat conducting oil pipe (101) is arranged in the first-stage vertical evaporator (1) in a shape like a Chinese character 'ri'.
3. The waste salt evaporation recovery processing system of claim 1, wherein: the steam outlet pipe (201) is provided with a plurality of branches, and the top ends of the plurality of branch steam outlet pipes (201) are communicated.
4. The waste salt evaporation recovery processing system of claim 1, wherein: and air hammers are arranged in the first lock hopper (107) and the second lock hopper (204).
5. The waste salt evaporation recovery processing system of claim 1, wherein: the shell (303) is arranged in a triangular structure.
6. The waste salt evaporation recovery processing system of claim 1, wherein: one end of the waste gas treatment pipeline (7) is provided with two branches which are respectively connected with the closed discharging cover (5) and the waste gas outlet (307) in a sealing way;
the other end of the waste gas treatment pipeline (7) is provided with an active carbon adsorption system (4), and the active carbon adsorption system (4) comprises a diversion pipeline (401), an air outlet nozzle (402), a cylinder (403), a cover plate (404), a rotating rod (405), a shaping shell (406), a first active carbon filter screen (407), a high-pressure air pump (408), a bearing (409), a second active carbon filter screen (410), a rolling groove (411), a roller (412), a first flow guide hole (413), a second flow guide hole (414), a third active carbon filter screen (415) and an air exhaust fan (416);
the top and the bottom of the cylinder (403) are in threaded connection with cover plates (404), a rotating rod (405) is rotatably connected between two groups of cover plates (404), six groups of first activated carbon filter screens (407) are uniformly arranged on the outer wall of the rotating rod (405), the outer wall of each first activated carbon filter screen (407) is fixedly connected with the rotating rod (405) through a shaping shell (406), and one side of the shaping shell (406) is in contact with the inner wall of the cylinder (403);
the other end of the waste gas treatment pipeline (7) is provided with a high-pressure air pump (408), one end of the high-pressure air pump (408) is provided with a shunt pipeline (401), one side of the shunt pipeline (401) is fixedly provided with six groups of air outlet nozzles (402), and the air outlet nozzles (402) are fixedly arranged inside the cylinder (403);
the cylinder (403) is internally provided with a second flow guide hole (414), a third activated carbon filter screen (415) is arranged in the second flow guide hole (414), an air exhaust fan (416) is arranged on the outer side of the third activated carbon filter screen (415), and the back of the air exhaust fan (416) is fixedly connected with the third activated carbon filter screen (415) through a mounting frame.
7. The waste salt evaporation recovery processing system of claim 6, wherein: both ends of dwang (405) all are provided with bearing (409), and the cover has second active carbon filter screen (410), second active carbon filter screen (410) are located bearing (409) one side, and the outer wall is provided with the set casing, second active carbon filter screen (410) cup joints in the outer wall of dwang (405) through the set casing, bearing (409) and second active carbon filter screen (410) all set up in the inside middle-end of apron (404).
8. The waste salt evaporation recovery processing system of claim 6, wherein: the upper end and the lower end of one side of the shaping shell (406) are provided with rollers (412), rolling grooves (411) are formed in the upper end and the lower end of the cylinder (403), the rollers (412) are arranged corresponding to the rolling grooves (411), and the rollers (412) are located in the rolling grooves (411) and movably connected.
9. The waste salt evaporation recovery processing system of claim 6, wherein: six groups of first guide holes (413) are formed in the cylinder (403), the first guide holes (413) are positioned on the left side of the second guide holes (414), and the air outlet nozzle (402) is positioned in the first guide holes (413);
the first guide hole (413) and the second guide hole (414) are obliquely arranged.
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| 康群;龙真明;马会娟;李兆华;娄兆文;赵锦慧;: "二甲基亚砜工业废盐的回收方法和工艺设计", 湖北大学学报(自然科学版), no. 04 * |
| 许颖;: "活性炭吸附脱附工艺在涂料行业的应用", 广州化工, no. 13 * |
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