CN117123004A - Normal-temperature condensation method for VOCs waste gas recovery industry - Google Patents
Normal-temperature condensation method for VOCs waste gas recovery industry Download PDFInfo
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- CN117123004A CN117123004A CN202311399224.XA CN202311399224A CN117123004A CN 117123004 A CN117123004 A CN 117123004A CN 202311399224 A CN202311399224 A CN 202311399224A CN 117123004 A CN117123004 A CN 117123004A
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- filter screen
- pipeline
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- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 52
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 239000002912 waste gas Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009833 condensation Methods 0.000 title claims abstract description 13
- 230000005494 condensation Effects 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 73
- 239000007788 liquid Substances 0.000 claims abstract description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 10
- 230000001502 supplementing effect Effects 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 description 19
- 239000012459 cleaning agent Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 9
- 229910021536 Zeolite Inorganic materials 0.000 description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 5
- 239000010457 zeolite Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003795 desorption Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
- B01D46/76—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/79—Regeneration of the filtering material or filter elements inside the filter by liquid process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
- B01D51/10—Conditioning the gas to be cleaned
-
- 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
- B01D53/02—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
-
- 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
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40084—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by exchanging used adsorbents with fresh adsorbents
Landscapes
- 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)
Abstract
The invention relates to the technical field of waste gas treatment, and discloses a normal-temperature condensation method for VOCs waste gas recovery industry, which comprises the steps that S1, after high-concentration VOCs tail gas produced and discharged by enterprises passes through a pretreatment system, components which cannot be recovered, such as oil films, particles and the like in the interior are removed, so that the VOCs gas entering the system does not contain impurities to influence the recovery effect; s2, enabling the tail gas after pretreatment to enter a steam humidifier, opening a corresponding valve at the moment, and introducing supersaturated steam into the steam humidifier to enable the supersaturated steam and the VOCs tail gas to be fully mixed. The invention has good treatment effect on VOCs waste gas, can stably lead the tail gas to be in a standard state, can condense the VOCs into a liquid state without reducing the concentrated tail gas to below 0 ℃ and then carry out subsequent treatment, saves cost, can facilitate the replacement of active carbon and the cleaning of a filter screen, and ensures that the waste gas can be treated normally.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment, and particularly relates to a normal-temperature condensation method for VOCs waste gas recovery industry.
Background
Volatile Organic Compounds (VOCs) are important precursors for forming secondary pollutants such as fine particulate matters (PM 2.5) and ozone (O3), and further cause the atmospheric environmental problems such as dust haze and photochemical smog.
The existing zeolite rotating wheel and RTO technology is suitable for small air quantity and high-concentration VOCs waste gas, the treatment effect is general, tail gas can not be stably kept in a standard state all the time, the fluctuation of the treatment effect is large, the cost for later maintenance and replacement of parts is high, if the zeolite rotating wheel and RTO technology are used in large air quantity and low concentration, the cost is higher, the effect is poorer, and in addition, by taking the zeolite rotating wheel as an example, the concentrated tail gas can recover the VOCs by using a condensation method, the concentrated tail gas can be condensed into a liquid state until the concentrated tail gas is below 0 ℃, the subsequent treatment is carried out, the tail gas is reduced to 0 ℃ and the cost is very high, and the conditions are too severe.
Therefore, it is necessary to invent a normal temperature condensing method for the VOCs waste gas recovery industry to solve the above problems.
Disclosure of Invention
The invention provides a normal temperature condensation method for VOCs waste gas recovery industry to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: a normal temperature condensation method for VOCs waste gas recovery industry comprises the following steps:
s1, removing components which cannot be recovered, such as oil films, particles and the like, in the high-concentration VOCs tail gas produced and discharged by enterprises after passing through a pretreatment system, so that the VOCs gas entering the system does not contain impurities to influence the recovery effect;
s2, enabling the tail gas after pretreatment to enter a steam humidifier, opening a corresponding valve at the moment, and introducing supersaturated steam into the steam humidifier to fully mix the supersaturated steam with VOCs tail gas to form high-temperature mixed gas with the temperature of 100-110 ℃;
s3, enabling the high-temperature mixed gas to enter a condenser, performing heat exchange condensation by using cooling water at 15-30 ℃ to obtain mixed liquid of water and solvent, enabling part of mixed gas which is not fully condensed to enter a secondary treatment system, removing VOCs components in the gas after secondary treatment by the secondary treatment system, discharging the removed gas after reaching standards, and enabling the mixed liquid in the secondary treatment system and the mixed liquid discharged by the condenser to enter a mixed liquid separation system for separation.
S4, the separated liquid VOCs solvent enters a treatment system in the factory for treatment and then is recycled, and the separated water enters a sewage treatment station of the factory for treatment.
Further, the pretreatment system includes the pipeline, the inside rotation of pipeline installs the circle shell, the equal fixedly connected with baffle in both sides of circle shell, the inside symmetry of circle shell is equipped with the filter screen frame, the inside of filter screen frame all is equipped with the filter screen, the both sides of circle shell all are through many connecting rod fixedly connected with annular plate, the annular plate rotates and sets up in the pipeline, one side fixedly connected with barrel that the annular plate is close to the filter screen, the inside slidable mounting of barrel has the slide bar, the one end and the filter screen frame fixed connection of slide bar, the one end fixedly connected with clamp plate that the filter screen frame was kept away from to the slide bar, the outside of slide bar just is located the cover between clamp plate and the barrel and is equipped with first spring, is located the top one side fixedly connected with push rod that the clamp plate is close to the annular plate, the one end that the clamp plate was kept away from to the push rod passes the annular plate, the inside of pipeline is equipped with the promotion subassembly that is used for driving the annular plate pivoted rotating assembly, the opening has all been seted up at the top of circle shell and the top of pipeline, the top fixedly connected with of pipeline has the slide bar, the opening with the top of pipeline and the opening, the bottom of the pipeline is equipped with the corresponding to open-ended, the bottom of the interior of the circulation box has, the container opening and the container is equipped with, the opening and the inside the container is filled with, the opening.
Further, the pushing assembly comprises a vertical plate fixedly connected to one side of the inner wall of the pipeline at equal intervals, and a cambered surface block is fixedly connected to one side of the vertical plate, which is close to the push rod.
Further, the rotating assembly comprises a mounting plate fixedly connected to the inner wall of the pipeline, a motor is fixedly connected to one side, close to the filter screen, of the mounting plate, a gear is fixedly connected to an output shaft of the motor, and teeth meshed with the gear are arranged on the inner side of the annular plate.
Further, the bottom fixedly connected with carrier plate of mounting panel, the one end fixedly connected with standpipe that the carrier plate is close to the filter screen, one side equidistance that the standpipe is close to the filter screen is equipped with the orifice, the top of carrier plate is equipped with the clean subassembly that is used for pouring into the detergent into the standpipe.
Further, clean subassembly includes the cylinder body of fixed connection at the support plate top, the cylinder body passes through notes liquid pipe and standpipe intercommunication, one side fixedly connected with box that the filter screen was kept away from to the mounting panel, the bottom half passes through fluid infusion pipe and cylinder body intercommunication, orifice and fluid infusion pipe's inside all is equipped with the check valve, the top of box is equipped with the liquid feeding pipe that passes the pipeline, the inside of cylinder body is equipped with the stripper plate, the top fixedly connected with depression bar of stripper plate, the bottom of stripper plate is equipped with the second spring, the top of depression bar extends to outside the cylinder body, the output shaft fixedly connected with a plurality of arc panels of motor.
Further, the filter screen is arranged in a round shape, and the length of the vertical pipe is the same as the diameter of the filter screen.
Further, the storage box is made of transparent glass.
The invention has the technical effects and advantages that:
1. the invention has good treatment effect on the VOCs waste gas, can stably lead the tail gas to be in a standard state, can condense the VOCs into a liquid state without reducing the concentrated tail gas to below 0 ℃ and then carry out subsequent treatment, and saves the cost;
2. the invention can facilitate the replacement of the activated carbon and the cleaning of the filter screen, and ensure that the waste gas can be treated normally in the follow-up process.
Drawings
FIG. 1 shows a schematic flow diagram of a normal temperature condensing method for the VOCs waste gas recovery industry in accordance with an embodiment of the present invention;
FIG. 2 shows a schematic diagram of the architecture of a pretreatment system in accordance with an embodiment of the present invention;
FIG. 3 shows a schematic cross-sectional view of a pretreatment system in accordance with an embodiment of the present invention;
FIG. 4 shows an enlarged schematic view of the structure of FIG. 3A in accordance with an embodiment of the present invention;
FIG. 5 shows an enlarged schematic view of the structure of FIG. 3 at B in accordance with an embodiment of the invention;
FIG. 6 is a schematic structural view showing a part of the structure of an embodiment of the present invention;
FIG. 7 shows a schematic diagram of a cross-sectional configuration of a pretreatment system in accordance with an embodiment of the present invention;
FIG. 8 is an enlarged schematic view of FIG. 7 showing an embodiment of the present invention;
in the figure: 1. a pipe; 2. a round shell; 3. a baffle; 4. a connecting rod; 5. a ring plate; 6. a cylinder; 7. a slide bar; 8. a pressing plate; 9. a first spring; 10. a push rod; 11. a riser; 12. a cambered surface block; 13. a mounting plate; 14. a motor; 15. a gear; 16. teeth; 17. an opening; 18. a drop port; 19. a plug plate; 20. a carrier plate; 21. a standpipe; 22. a cylinder; 23. a liquid injection pipe; 24. a case; 25. a fluid supplementing pipe; 26. a liquid adding tube; 27. an extrusion plate; 28. a compression bar; 29. an arc panel; 30. a storage box; 31. a filter screen frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
The invention provides a normal temperature condensation method for VOCs waste gas recovery industry, as shown in figure 1, comprising the following steps:
s1, removing components which cannot be recovered, such as oil films, particles and the like, in the high-concentration VOCs tail gas produced and discharged by enterprises after passing through a pretreatment system, so that the VOCs gas entering the system does not contain impurities to influence the recovery effect;
s2, enabling the tail gas after pretreatment to enter a steam humidifier, opening a corresponding valve at the moment, and introducing supersaturated steam into the steam humidifier to fully mix the supersaturated steam with VOCs tail gas to form high-temperature mixed gas with the temperature of 100-110 ℃;
s3, enabling the high-temperature mixed gas to enter a condenser, performing heat exchange condensation by using cooling water at 15-30 ℃ to obtain mixed liquid of water and solvent, enabling part of mixed gas which is not fully condensed to enter a secondary treatment system, removing VOCs components in the gas after secondary treatment by the secondary treatment system, discharging the removed gas after reaching standards, and enabling the mixed liquid in the secondary treatment system and the mixed liquid discharged by the condenser to enter a mixed liquid separation system for separation.
S4, the separated liquid VOCs solvent enters a treatment system in the factory for treatment and then is recycled, and the separated water enters a sewage treatment station of the factory for treatment.
The removal rate of VOCs in the tail gas treated by the steps reaches more than 95%, the treatment effect is good, the concentrated tail gas does not need to be reduced to below 0 ℃, the VOCs can be condensed into a liquid state and then subjected to subsequent treatment, the cost is saved, and the tail gas can be stably in a standard state.
When the tail gas generated by the zeolite rotating wheel, the fluidized bed, the nitrogen desorption system and the like is treated, the step S1 can be skipped, the tail gas generated by the zeolite rotating wheel, the fluidized bed, the nitrogen desorption system and the like is directly introduced into the steam humidifier, and then the subsequent operation is carried out.
As shown in fig. 2 to 8, the pretreatment system comprises a pipeline 1, a round shell 2 is rotatably arranged in the pipeline 1, baffle plates 3 are fixedly connected to two sides of the round shell 2, a filter screen frame 31 is symmetrically arranged in the round shell 2, filter screens are arranged in the filter screen frame 31, ring plates 5 are fixedly connected to two sides of the round shell 2 through a plurality of connecting rods 4, the ring plates 5 are rotatably arranged in the pipeline 1, a cylinder body 6 is fixedly connected to one side of the ring plates 5 close to the filter screens, a sliding rod 7 is slidably arranged in the cylinder body 6, one end of the sliding rod 7 is fixedly connected with the filter screen frame 31, one end of the sliding rod 7, which is far away from the filter screen frame 31, is fixedly connected with a pressing plate 8, a first spring 9 is sleeved outside the sliding rod 7 and between the pressing plate 8 and the cylinder body 6, a push rod 10 is fixedly connected to one side of the uppermost pressing plate 8, which is close to the ring plates 5, the push rod 10 is kept away from the one end of clamp plate 8 and is passed annular plate 5, the inside of pipeline 1 is equipped with the promotion subassembly that is used for driving push rod 10 to the direction motion that is close to the filter screen, be equipped with in pipeline 1 and be used for driving annular plate 5 pivoted rotating assembly, opening 17 has all been seted up at the top of circle shell 2 and the top of pipeline 1, the storage box 30 of opening 17 intercommunication is fixedly connected with at the top of pipeline 1, the mouth 18 that drops that corresponds with opening 17 has been seted up to the bottom of pipeline 1, circle shell 2 and the laminating of the inner wall of pipeline 1, the slag notch has been seted up to the bottom symmetry of pipeline 1, it is located between annular plate 5 and the circle shell 2 to fall the slag notch, be equipped with cock plate 19 in the slag notch, the inside of circle shell 2 and the inside of storage box 30 all are filled with the active carbon.
When in use, one end of the pipeline 1 is connected with a discharge pipe for discharging tail gas, the tail gas can be led into the pipeline 1, the tail gas is filtered by a filter screen to remove an oil film through active carbon after being filtered by the filter screen, then is discharged outside the pipeline 1 after being filtered again by the filter screen at the rear, then enters a steam humidifier, the impurities on the filter screen are excessive along with the treatment of the waste gas, the active carbon is adsorbed and saturated, the filter screen needs to be cleaned, the active carbon is replaced, the rotating assembly is matched to drive the ring plate 5 to drive the connecting rod 4 and the round shell 2 to rotate, at the moment, an opening 17 on the round shell 2 is staggered with an opening 17 on the pipeline 1, then the active carbon in the storage box 30 is contacted with the outer side of the round shell 2 and cannot fall, the opening 17 is aligned with a falling opening 18 below along with the rotation of the round shell 2, the rotating assembly stops driving the ring plate 5, then the activated carbon in the round shell 2 falls to the outside through the falling opening 18, so that the activated carbon in the round shell 2 is emptied, then the rotating component continuously drives the annular plate 5 to rotate to realize the rotation of the round shell 2, then the pushing component is matched to drive the push rod 10 to move towards the direction close to the filter screen, so as to drive the pressing plate 8, the slide rod 7 and the filter screen frame 31 to move along with the push rod, so that the two filter screen frames 31 move towards each other, meanwhile, the pressing plate 8 compresses the first spring 9 to deform to generate an acting force, then the pushing component cancels the pushing of the push rod 10, the acting force is released by the first spring 9 to drive the pressing plate 8 to reset, otherwise, the resetting of the filter screen frame 31 can be realized, the filter screen frame 31 collides with the baffle plate 3 to generate vibration, so that the particles on the surface of the filter screen are shaken off, the pushing component continuously pushes the push rod 10 and then cancels the pushing of the filter screen frame 31 along with the continuous movement of the round shell 2, so that the continuous vibration of the filter screen frame 31 can be realized, thereby shake the particulate matter on its surface off, realize its clearance, finally circle shell 2 rotates to opening 17 again and aligns with pipeline 1's opening 17, and then the drive to annular plate 5 is stopped to the rotating assembly, and the active carbon in the storage box 30 enters into inside circle shell 2 this moment, realizes the change to the active carbon, has realized so far being convenient for change to the active carbon and to the clearance of filter screen, guarantees that follow-up can normally handle waste gas.
As shown in fig. 3, the pushing assembly comprises a vertical plate 11 fixedly connected to one side of the inner wall of the pipeline 1 at equal intervals, and a cambered surface block 12 is fixedly connected to one side of the vertical plate 11, which is close to the push rod 10.
When push rod 10 contradicts with the cambered surface of cambered surface piece 12, make push rod 10 receive the extrusion along the cambered surface motion of cambered surface piece 12 along with the motion of push rod 10 to be close to the direction motion of filter screen, thereby drive clamp plate 8, slide bar 7, filter screen frame 31 motion thereupon, make the motion that two filter screen frames 31 are close to each other, simultaneously clamp plate 8 compresses first spring 9 and makes its deformation produce the effort, after push rod 10 leaves cambered surface piece 12, first spring 9 release effort drives clamp plate 8 and resets, can realize the reset of filter screen frame 31 and push rod 10 on the contrary, then push rod 10 and follow-up cambered surface piece 12 contact separation, thereby can realize the continuous vibrations of filter screen frame 31.
As shown in fig. 5, the rotating assembly comprises a mounting plate 13 fixedly connected to the inner wall of the pipeline 1, one side, close to the filter screen, of the mounting plate 13 is fixedly connected with a motor 14, an output shaft of the motor 14 is fixedly connected with a gear 15, and the inner side of the annular plate 5 is provided with teeth 16 meshed with the gear 15.
The motor 14 is started to drive the gear 15 to rotate by the output shaft thereof, so that the ring plate 5 is driven to rotate by the cooperation of the teeth 16, and the ring plate 5 is driven.
As shown in fig. 3 to 8, the bottom end of the mounting plate 13 is fixedly connected with a carrier plate 20, one end of the carrier plate 20, which is close to the filter screen, is fixedly connected with a vertical pipe 21, one side of the vertical pipe 21, which is close to the filter screen, is provided with spray holes at equal intervals, and the top of the carrier plate 20 is provided with a cleaning component for injecting cleaning agent into the vertical pipe 21.
The motor 14 output shaft rotates and cooperates the continuous injection cleaner to standpipe 21 in clean subassembly for the continuous through orifice spray to the filter screen of detergent, dissolve its surface impurity, make follow-up impurity more easily drop.
As shown in fig. 3 to 8, the cleaning assembly comprises a cylinder 22 fixedly connected to the top of the carrier plate 20, the cylinder 22 is communicated with the standpipe 21 through a liquid injection pipe 23, one side of the mounting plate 13 away from the filter screen is fixedly connected with a box 24, the bottom of the box 24 is communicated with the cylinder 22 through a liquid supplementing pipe 25, check valves are arranged in spray holes and the liquid supplementing pipe 25, a liquid adding pipe 26 penetrating through the pipeline 1 is arranged at the top of the box 24, cleaning agent can be added into the box 24 through the liquid adding pipe 26, an extrusion plate 27 is arranged in the cylinder 22, a compression rod 28 is fixedly connected to the top of the extrusion plate 27, a second spring is arranged at the bottom of the extrusion plate 27, the top of the compression rod 28 extends out of the cylinder 22, a plurality of arc panels 29 are fixedly connected to an output shaft of the motor 14, and the arc panels 29 are mutually connected.
The output shaft of the motor 14 rotates and drives the arc panel 29 to rotate, the arc panel 29 extrudes the pressure bar 28 through the arc surface to drive the extrusion plate 27 to descend and compress the second spring to enable the second spring to deform to generate acting force, the pressure bar 28 is gradually separated along with the rotation of the arc panel 29, the deformed second spring releases acting force to drive the extrusion plate 27 and the pressure bar 28 to reset, the follow-up arc panel 29 is continuously in collision with the pressure bar 28 to separate, continuous up-and-down movement of the extrusion plate 27 can be achieved, when the extrusion plate 27 descends, the cleaning agent in the cylinder 22 is extruded outwards, the one-way valve in the fluid supplementing pipe 25 is closed, the cleaning agent enters the fluid injection pipe 23, then the one-way valve in the ejection orifice is pushed into the standpipe 21 to be ejected to the surface of the filter screen, when the extrusion plate 27 ascends, the one-way valve in the ejection orifice is closed, the one-way valve in the fluid supplementing pipe 25 is opened along with the ascent of the extrusion plate 27 to enable the cleaning agent in the box 24 to be pumped into the cylinder 22 to be replenished, and the follow-up reciprocating movement of the extrusion plate 27 is enabled to continuously reciprocate, and impurities can be better dissolved on the surface of the filter screen.
As shown in fig. 7, the screen is circular in shape and the length of the standpipe 21 is the same as the diameter of the screen.
So that the sprayed cleaning agent can cover the whole surface of the filter screen.
As shown in fig. 2, the material of the storage box 30 is transparent glass.
So that knowledge of the amount of activated carbon stored in storage tank 30 can be aided.
Working principle:
s1, removing components which cannot be recovered, such as oil films, particles and the like, in the high-concentration VOCs tail gas produced and discharged by enterprises after passing through a pretreatment system, so that the VOCs gas entering the system does not contain impurities to influence the recovery effect;
s2, enabling the tail gas after pretreatment to enter a steam humidifier, opening a corresponding valve at the moment, and introducing supersaturated steam into the steam humidifier to fully mix the supersaturated steam with VOCs tail gas to form high-temperature mixed gas with the temperature of 100-110 ℃;
s3, enabling the high-temperature mixed gas to enter a condenser, performing heat exchange condensation by using cooling water at 15-30 ℃ to obtain mixed liquid of water and solvent, enabling part of mixed gas which is not fully condensed to enter a secondary treatment system, removing VOCs components in the gas after secondary treatment by the secondary treatment system, discharging the removed gas after reaching standards, and enabling the mixed liquid in the secondary treatment system and the mixed liquid discharged by the condenser to enter a mixed liquid separation system for separation.
S4, the separated liquid VOCs solvent enters a treatment system in the factory for treatment and then is recycled, and the separated water enters a sewage treatment station of the factory for treatment.
The removal rate of VOCs in the tail gas treated by the steps reaches more than 95%, the treatment effect is good, the concentrated tail gas can be condensed into a liquid state without reducing the temperature of the concentrated tail gas to below 0 ℃, and then the subsequent treatment is performed, so that the cost is saved.
When in use, one end of the pipeline 1 is connected with a discharge pipe for discharging tail gas, the tail gas is led into the pipeline 1, the tail gas is filtered by a filter screen to remove an oil film through active carbon after being filtered by the filter screen, then the tail gas is filtered again by the filter screen at the rear and discharged outside the pipeline 1, then the tail gas enters a steam humidifier, impurities on the filter screen are excessive along with treatment of the waste gas, the active carbon is adsorbed and saturated, the filter screen is required to be cleaned, the active carbon is replaced, an output shaft of the motor 14 drives a gear 15 to rotate, thereby the ring plate 5 is driven to rotate by matching with teeth 16, driving of the ring plate 5 is realized, the ring plate 5 drives a connecting rod 4 and a round shell 2 to rotate, at the moment, an opening 17 on the round shell 2 is staggered with the opening 17 on the pipeline 1, then the active carbon in a storage box 30 is contacted with the outer side of the round shell 2 and cannot fall, the opening 17 is aligned with a falling opening 18 below along with rotation of the round shell 2, the motor 14 stops driving the ring plate 5, then the activated carbon in the round shell 2 drops to the outside through the dropping opening 18, so that the activated carbon in the round shell 2 is emptied, then the motor 14 is continuously started, the ring plate 5 is driven to rotate to realize the rotation of the round shell 2, the push rod 10 rotates along with the rotation of the round shell, when the push rod 10 is in conflict with the cambered surface of the cambered surface block 12, the push rod 10 moves along the cambered surface of the cambered surface block 12 along with the movement of the push rod 10 to be extruded to move along the cambered surface of the cambered surface block 12, so that the pressing plate 8, the slide rod 7 and the filter screen frame 31 are driven to move along with the movement of the push rod, the two filter screen frames 31 are driven to move close to each other, the pressing plate 8 compresses the first spring 9 to deform to generate acting force, the first spring 9 releases the acting force to drive the pressing plate 8 to reset after the push rod 10 leaves the cambered surface block 12, and the reset of the filter screen frames 31 and the push rod 10 can be realized on the contrary, the filter screen frame 31 is reset to collide with the baffle plate 3 to generate vibration, so that particles on the surface of the filter screen are vibrated, the filter screen frame 31 is continuously vibrated along with the continuous collision and separation of the push rod 10 and the cambered surface block 12, the particles on the surface of the filter screen frame are vibrated, the cleaning of the filter screen frame is realized, the round shell 2 is finally rotated to the opening 17 to be aligned with the opening 17 of the pipeline 1, then the operation of the motor 14 is stopped, at the moment, the activated carbon in the storage box 30 enters the inside of the round shell 2, the replacement of the activated carbon is realized, the replacement of the activated carbon and the cleaning of the filter screen are conveniently realized, and the subsequent normal treatment of waste gas is ensured; the output shaft of the motor 14 rotates and drives the arc panel 29 to rotate, the arc panel 29 extrudes the pressure bar 28 through the arc surface to drive the extrusion plate 27 to descend and compress the second spring to enable the second spring to deform to generate acting force, the pressure bar 28 is gradually separated along with the rotation of the arc panel 29, the deformed second spring releases acting force to drive the extrusion plate 27 and the pressure bar 28 to reset, the follow-up arc panel 29 is continuously in collision with the pressure bar 28 to separate, continuous up-and-down movement of the extrusion plate 27 can be achieved, when the extrusion plate 27 descends, the cleaning agent in the cylinder 22 is extruded outwards, the one-way valve in the fluid supplementing pipe 25 is closed, the cleaning agent enters the fluid injection pipe 23, then the one-way valve in the ejection orifice is pushed into the standpipe 21 to be ejected to the surface of the filter screen, when the extrusion plate 27 ascends, the one-way valve in the ejection orifice is closed, the one-way valve in the fluid supplementing pipe 25 is opened along with the ascent of the extrusion plate 27 to enable the cleaning agent in the box 24 to be pumped into the cylinder 22 to be replenished, and the follow-up reciprocating movement of the extrusion plate 27 is enabled to continuously reciprocate, and impurities can be better dissolved on the surface of the filter screen.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (8)
1. A normal temperature condensation method for VOCs waste gas recovery industry is characterized in that: the method comprises the following steps:
s1, removing components which cannot be recovered in oil films and particles in high-concentration VOCs tail gas produced and discharged by enterprises after the high-concentration VOCs tail gas passes through a pretreatment system, so that the VOCs gas entering the system does not contain impurities to influence the recovery effect;
s2, enabling the tail gas after pretreatment to enter a steam humidifier, opening a corresponding valve at the moment, and introducing supersaturated steam into the steam humidifier to fully mix the supersaturated steam with VOCs tail gas to form high-temperature mixed gas with the temperature of 100-110 ℃;
s3, enabling the high-temperature mixed gas to enter a condenser, performing heat exchange condensation by using cooling water at 15-30 ℃ to obtain mixed liquid of water and solvent, enabling part of the mixed gas which is not fully condensed to enter a secondary treatment system, removing VOCs components in the gas after secondary treatment by the secondary treatment system, discharging the removed gas after reaching standards, and enabling the mixed liquid in the secondary treatment system and the mixed liquid discharged by the condenser to enter a mixed liquid separation system for separation;
s4, the separated liquid VOCs solvent enters a treatment system in the factory for treatment and then is recycled, and the separated water enters a sewage treatment station of the factory for treatment.
2. The method for condensing VOCs off-gas recovery industry at ambient temperature of claim 1, wherein: the pretreatment system comprises a pipeline (1), a round shell (2) is rotatably arranged in the pipeline (1), two sides of the round shell (2) are fixedly connected with a baffle plate (3), filter screen frames (31) are symmetrically arranged in the round shell (2), filter screens are arranged in the filter screen frames (31), two sides of the round shell (2) are fixedly connected with a ring plate (5) through a plurality of connecting rods (4), the ring plate (5) is rotatably arranged in the pipeline (1), one side of the ring plate (5) close to the filter screen is fixedly connected with a cylinder body (6), a sliding rod (7) is slidably arranged in the cylinder body (6), one end of the sliding rod (7) is fixedly connected with the filter screen frames (31), one end of the sliding rod (7) away from the filter screen frames (31) is fixedly connected with a pressing plate (8), the outer part of the sliding rod (7) and a first spring (9) is sleeved between the pressing plate (8) and the cylinder body (6), one side of the pressing plate (8) which is positioned at the uppermost is close to the ring plate (5) is fixedly connected with a cylinder body (6), one end of the sliding rod (10) which is close to the push rod (10) and is far away from the inner side of the push rod (10) and is used for driving the push rod (10) to move towards the inner part of the push rod (1), be equipped with in pipeline (1) and be used for driving rotation subassembly of annular plate (5), opening (17) have all been seted up at the top of circular shell (2) and the top of pipeline (1), the storage box (30) of the top fixedly connected with of pipeline (1) and opening (17) intercommunication, drop mouth (18) that correspond with opening (17) have been seted up to the bottom of pipeline (1), the laminating of the inner wall of circular shell (2) and pipeline (1), the slag notch has been seted up to the bottom symmetry of pipeline (1), it is located between annular plate (5) and circular shell (2) to fall the slag notch, be equipped with cock plate (19) in the slag notch, the inside of circular shell (2) and the inside of storage box (30) all are filled with the active carbon.
3. The method for condensing VOCs off-gas recovery industry at ambient temperature of claim 2, wherein: the pushing assembly comprises vertical plates (11) fixedly connected to one side of the inner wall of the pipeline (1) at equal intervals, and cambered surface blocks (12) are fixedly connected to one side, close to the push rod (10), of each vertical plate (11).
4. The method for condensing VOCs off-gas recovery industry at ambient temperature of claim 2, wherein: the rotary assembly comprises a mounting plate (13) fixedly connected to the inner wall of the pipeline (1), a motor (14) is fixedly connected to one side, close to the filter screen, of the mounting plate (13), a gear (15) is fixedly connected to an output shaft of the motor (14), and teeth (16) meshed with the gear (15) are arranged on the inner side of the annular plate (5).
5. The method for condensing VOCs off-gas recovery industry at ambient temperature of claim 4, wherein: the bottom fixedly connected with carrier plate (20) of mounting panel (13), the one end fixedly connected with standpipe (21) that carrier plate (20) are close to the filter screen, one side equidistance that standpipe (21) are close to the filter screen is equipped with the orifice, the top of carrier plate (20) is equipped with the clean subassembly that is used for pouring into the sanitizer into standpipe (21).
6. The method for condensing VOCs off-gas recovery industry at ambient temperature of claim 5, wherein: the cleaning assembly comprises a cylinder body (22) fixedly connected to the top of a carrier plate (20), the cylinder body (22) is communicated with a vertical pipe (21) through a liquid injection pipe (23), one side of a mounting plate (13) away from a filter screen is fixedly connected with a box body (24), the bottom of the box body (24) is communicated with the cylinder body (22) through a liquid supplementing pipe (25), check valves are arranged in spray holes and the liquid supplementing pipe (25), a liquid adding pipe (26) penetrating through a pipeline (1) is arranged at the top of the box body (24), a squeezing plate (27) is arranged in the cylinder body (22), a pressing rod (28) is fixedly connected to the top of the squeezing plate (27), a second spring is arranged at the bottom of the squeezing plate (27), and the top of the pressing rod (28) extends out of the cylinder body (22), and a plurality of arc panels (29) are fixedly connected to an output shaft of a motor (14).
7. The method for condensing VOCs off-gas recovery industry at ambient temperature of claim 6, wherein: the filter screen is arranged in a round shape, and the length of the vertical pipe (21) is the same as the diameter of the filter screen.
8. The method for condensing VOCs off-gas recovery industry at ambient temperature of claim 2, wherein: the storage box (30) is made of transparent glass.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117443122A (en) * | 2023-12-18 | 2024-01-26 | 上海沐基环保科技有限公司 | Pretreatment method of high-concentration water-soluble VOCs |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5618333A (en) * | 1995-03-28 | 1997-04-08 | Buchholz, Jr.; Leroy H. | Method for volatile organic compound recycling |
| CN105561725A (en) * | 2016-01-30 | 2016-05-11 | 泉州市天龙环境工程有限公司 | Waste water recycling device and method in VOCs waste gas recovery process |
| CN106693582A (en) * | 2017-01-05 | 2017-05-24 | 南京大学 | Method for separating and recycling organic solvent from dregs evaporation tail gas |
| CN213590091U (en) * | 2020-10-29 | 2021-07-02 | 河南一川环保工程有限公司 | Novel VOCs handles device |
| CN113893648A (en) * | 2021-11-24 | 2022-01-07 | 缪广河 | Organic waste gas treatment device |
| CN216653800U (en) * | 2021-11-18 | 2022-06-03 | 广东钡瑞家具制造有限公司 | Air filtering device for furniture processing |
| CN115155240A (en) * | 2022-06-29 | 2022-10-11 | 湖南宏旺环保科技有限公司 | Waste oil regeneration exhaust treatment device |
| CN218653488U (en) * | 2022-11-04 | 2023-03-21 | 瀚沃环境技术(上海)有限公司 | VOCs exhaust-gas treatment adsorption equipment |
| CN116007360A (en) * | 2022-12-01 | 2023-04-25 | 江西陶瓷工艺美术职业技术学院 | Full-automatic production line and production process of ceramic tunnel kiln |
-
2023
- 2023-10-26 CN CN202311399224.XA patent/CN117123004B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5618333A (en) * | 1995-03-28 | 1997-04-08 | Buchholz, Jr.; Leroy H. | Method for volatile organic compound recycling |
| CN105561725A (en) * | 2016-01-30 | 2016-05-11 | 泉州市天龙环境工程有限公司 | Waste water recycling device and method in VOCs waste gas recovery process |
| CN106693582A (en) * | 2017-01-05 | 2017-05-24 | 南京大学 | Method for separating and recycling organic solvent from dregs evaporation tail gas |
| CN213590091U (en) * | 2020-10-29 | 2021-07-02 | 河南一川环保工程有限公司 | Novel VOCs handles device |
| CN216653800U (en) * | 2021-11-18 | 2022-06-03 | 广东钡瑞家具制造有限公司 | Air filtering device for furniture processing |
| CN113893648A (en) * | 2021-11-24 | 2022-01-07 | 缪广河 | Organic waste gas treatment device |
| CN115155240A (en) * | 2022-06-29 | 2022-10-11 | 湖南宏旺环保科技有限公司 | Waste oil regeneration exhaust treatment device |
| CN218653488U (en) * | 2022-11-04 | 2023-03-21 | 瀚沃环境技术(上海)有限公司 | VOCs exhaust-gas treatment adsorption equipment |
| CN116007360A (en) * | 2022-12-01 | 2023-04-25 | 江西陶瓷工艺美术职业技术学院 | Full-automatic production line and production process of ceramic tunnel kiln |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117443122A (en) * | 2023-12-18 | 2024-01-26 | 上海沐基环保科技有限公司 | Pretreatment method of high-concentration water-soluble VOCs |
| CN117443122B (en) * | 2023-12-18 | 2024-03-15 | 上海沐基环保科技有限公司 | Pretreatment method of high-concentration water-soluble VOCs |
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