Collector for reducing VOC emission and collecting and treating tail gas

Abstract

The utility model discloses a collector for reducing VOC emission and collecting and treating tail gas, and relates to the technical field of VOC collectors, the collector comprises a spraying box, the upper part of the outer side wall of the spraying box is in threaded connection with an adsorption box, the upper part of the inner side wall of the adsorption box is fixedly provided with a box cover, and the lower part of the inner side wall of the adsorption box is fixedly provided with a disc; a VOC combustion assembly is fixedly installed on the left side of the spraying box, and a third liquid outlet pipe is fixedly installed on the lower surface of the spraying box. According to the VOC adsorption device, the sealing cover and the filter frame are moved out of the adsorption box through the handle, the sealing cover is rotated, the sealing cover is separated from the filter frame under the action of the stud and the thread of the filter frame, activated carbon in the filter frame is poured out, and new activated carbon is loaded into the filter frame, so that VOC can be adsorbed for a long time, the adsorption effect of the activated carbon on the VOC is improved, and the adsorption effect of the activated carbon on the VOC is improved by rotating the sealing cover. And the sealing cover filter frame is inserted into the slot II, so that the activated carbon is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of VOC collectors, and particularly relates to a collector for reducing VOC emissions and collecting and treating tail gas. Background Technique

[0002] Epoxy resin generally refers to organic high-molecular compounds containing two or more epoxy groups in the molecule, and the relative molecular masses of general common products are not high. The molecular structure of epoxy resin is characterized by active epoxy groups in the molecular chain, and the epoxy groups can be located at the end, in the middle or in a cyclic structure of the molecular chain. Due to the active epoxy groups in the molecular structure, they can undergo cross-linking reactions with various types of curing agents to form insoluble and infusible high polymers with a three-dimensional network structure. The cured epoxy resin has good physical and chemical properties. It has excellent adhesion strength to the surfaces of metal and non-metal materials, good dielectric properties, small shrinkage rate, good dimensional stability of products, high hardness, good flexibility, and is stable to alkalis and most solvents. Therefore, it is widely used in various departments of national defense and the national economy for uses such as casting, impregnation, laminating materials, adhesives, coatings, etc. However, during the production process of epoxy resin, there are always a large amount of tail gas containing organic substances discharged, and these organic substance tail gases are harmful gases. Therefore, a collector is needed to collect and reduce the VOC emissions.

[0003] Chinese patent document CN216023992U discloses a collector for reducing VOC emissions and collecting and treating tail gas. This collector for reducing VOC emissions and collecting and treating tail gas is provided with a cooling device, an organic solvent spraying device, an activated carbon layer and a swirl plate. The device has an improved structure and can perform combined treatment on the tail gas containing organic substances through various methods to collect as much organic substance tail gas as possible, thereby improving the effect of tail gas purification.

[0004] The following problems exist in the prior art:

[0005] At present, the treatment of VOC mostly adopts the technologies of multi-stage condensation and activated carbon adsorption to reduce VOC. The former is to cool the tail gas to liquefy the condensable organic substances in the tail gas, and the latter is to adsorb VOC, so as to reduce the emission of organic gases. However, the tail gas after multi-stage condensation still contains a relatively high concentration of VOC, and the purification effect is not good. When using activated carbon to adsorb VOC, with the increase of the number of uses, the adsorption effect of the activated carbon will also decrease accordingly, and it is not convenient to replace the activated carbon, and it is not convenient to use. Content of the Utility Model

[0006] The utility model provides a collector for reducing VOC emissions and collecting and treating tail gas to solve the problems put forward in the above background technique.

[0007] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0008] A collector for reducing VOC emissions and collecting and treating tail gas, comprising a spray box. The upper part of the outer side wall of the spray box is threadedly connected with an adsorption box. The upper part of the inner side wall of the adsorption box is fixedly installed with a box cover. The lower part of the inner side wall of the adsorption box is fixedly installed with a disc. The left side of the spray box is fixedly installed with a VOC combustion assembly. The lower surface of the spray box is fixedly installed with a third liquid outlet pipe. The upper surface of the box cover is fixedly installed with an exhaust pipe passing through the box cover. The upper surface of the box cover is provided with a plurality of second slots, and the cross section of the second slots is in a T-shaped structure. The inner side walls of the second slots are inserted with adsorption components. The upper part of the inner side wall of the spray box is fixedly installed with a concave baffle. The outer side of the lower surface of the concave baffle is fixedly installed with a distribution pipe. Between the front and rear sides of the inner side wall of the distribution pipe, three vertical pipes are fixedly installed. The lower surfaces of the distribution pipe and the vertical pipes are both fixedly installed with spray heads. The right side of the spray box is fixedly installed with a second pump body, and the output end of the second pump body is fixedly installed with the right side of the distribution pipe.

[0009] The VOC combustion assembly includes a ventilation pipe. The right end of the ventilation pipe is fixedly installed with the left side of the spray box. The left end of the ventilation pipe is fixedly installed with a boiler. The lower left side of the boiler is fixedly installed with a first liquid outlet pipe. The upper surface of the boiler is fixedly installed with a first pump body, and the output end of the first pump body extends into the inner cavity of the boiler.

[0010] The adsorption component includes a filter frame and a sealing cover. The outer side walls of the filter frame and the sealing cover are both inserted into the inner side walls of the second slots. The upper surface of the disc is provided with a plurality of cylindrical first slots. The lower surface of the first slots is provided with cylindrical air inlet holes. The upper surface of the sealing cover is fixedly installed with a handle. The lower part of the inner side wall of the adsorption box is fixedly installed with a disc. The inner cavity of the filter frame is filled with a plurality of activated carbons.

[0011] Preferably, the lower surface of the inner cavity of the boiler is inclined, and the lower surface of the inner cavity of the spray box is in a conical structure.

[0012] Preferably, a spiral cold water pipe is arranged in the inner cavity of the ventilation pipe, and both ends of the cold water pipe pass through the ventilation pipe and extend to the outside. The left side in the middle of the inner cavity of the ventilation pipe is higher than the right side. The right part of the lower side of the outer surface of the ventilation pipe is fixedly installed with a second liquid outlet pipe.

[0013] Preferably, the lower surface of the filter frame is fixedly installed with an insertion cylinder, and the inner side wall of the insertion cylinder is inserted with the outer side wall of the first slot.

[0014] Preferably, the lower surface of the sealing cover is fixedly installed with a stud, and the outer side wall of the stud is threadedly connected with the upper part of the inner side wall of the filter frame. The material of the sealing cover is rubber.

[0015] Preferably, a wire mesh is fixedly installed at the lower part of the inner side wall of the filter frame.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is as follows:

[0017] The present utility model provides a collector for collecting and treating tail gas for reducing VOC emissions. The VOC is pumped into a boiler by a first pump for combustion treatment. By using the combustion treatment method to treat VOC, the VOC can be basically converted into CO 2 , H 2 O. The treatment is relatively complete. Then, it is cooled by the cold water pipe in the ventilation pipe and enters the spray box. A second pump pumps an organic solvent into the distribution pipe, and the organic solvent is atomized and sprayed onto the VOC through a spray head to form liquid droplets. The liquid droplets fall into the spray box. A very small part of the VOC that is not atomized enters the filter frame through the through holes and air inlet holes on the concave baffle and is finally absorbed by activated carbon. The liquid flows out through a second liquid outlet pipe, a first liquid outlet pipe, and a third liquid outlet pipe. The cold water pipe is arranged in a spiral shape to increase the cooling time of the VOC, so that the VOC can be liquefied.

[0018] The present utility model provides a collector for collecting and treating tail gas for reducing VOC emissions. The sealing cover and the filter frame are removed from the adsorption box through a handle. The sealing cover is rotated, and under the action of the thread between the stud and the filter frame, the sealing cover is separated from the filter frame. The activated carbon in the filter frame is poured out, and then new activated carbon is loaded into the filter frame, which can adsorb VOC for a long time and improve the adsorption effect of the activated carbon on VOC. The sealing cover is rotated, and the sealing cover and the filter frame are inserted into the second slot, which is convenient for replacing the activated carbon and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a sectional structural diagram of the present utility model;

[0021] Figure 3 is a sectional structural diagram of the spray box of the present utility model;

[0022] Figure 4 is a sectional structural diagram of the ventilation pipe of the present utility model;

[0023] Figure 5 is a sectional structural diagram of the adsorption box of the present utility model;

[0024] Figure 6 is a schematic structural diagram of the adsorption component of the present utility model;

[0025] Figure 7 is a schematic structural diagram of the disc of the present utility model.

[0026] In the figure: 1. Spray box; 2. Adsorption box; 3. VOC combustion component; 31. Vent pipe; 32. Second liquid outlet pipe; 33. Cold water pipe; 34. Boiler; 35. First pump body; 4. Box cover; 5. First liquid outlet pipe; 6. Disc; 7. Air inlet hole; 8. Third liquid outlet pipe; 9. Adsorption component; 91. Sealing cover; 92. Filter frame; 93. Handle; 94. Insert cylinder; 95. Stud; 96. Wire mesh; 10. Second pump body; 11. Distribution pipe; 12. Vertical pipe; 13. Sprinkler head; 14. Concave baffle; 15. First slot; 16. Exhaust pipe; 17. Second slot. Specific implementation mode

[0027] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0028] As Figures 1-7 shown, a collector for reducing VOC emissions and collecting and treating tail gas includes a spray box 1. The upper part of the outer side wall of the spray box 1 is threadedly connected with an adsorption box 2. The upper part of the inner side wall of the adsorption box 2 is fixedly installed with a box cover 4. The lower part of the inner side wall of the adsorption box 2 is fixedly installed with a disc 6. The left side of the spray box 1 is fixedly installed with a VOC combustion component 3 to burn VOC, and basically VOC can be converted into CO 2 , H 2O, the treatment is relatively complete. The lower surface of the spray box 1 is fixedly installed with a third liquid outlet pipe 8. The upper surface of the box cover 4 is fixedly installed with an exhaust pipe 16 passing through the box cover 4. The upper surface of the box cover 4 is provided with a number of second slots 17, and the cross-section of the second slots 17 is in a T-shaped structure. The inner side wall of the second slots 17 is inserted with an adsorption component 9 to adsorb the VOCs treated by combustion, condensation and spraying, further reducing the VOCs. The upper part of the inner side wall of the spray box 1 is fixedly installed with a concave baffle 14. The outer side of the lower surface of the concave baffle 14 is fixedly installed with a distribution pipe 11. Between the front and rear sides of the inner side wall of the distribution pipe 11, three vertical pipes 12 are fixedly installed. The lower surfaces of the distribution pipe 11 and the vertical pipes 12 are both fixedly installed with spray heads 13. The right side of the spray box 1 is fixedly installed with a second pump body 10, and the output end of the second pump body 10 is fixedly installed with the right side of the distribution pipe 11. The VOC combustion component 3 includes a ventilation pipe 31. The right end of the ventilation pipe 31 is fixedly installed with the left side of the spray box 1. The left end of the ventilation pipe 31 is fixedly installed with a boiler 34. The lower left side of the boiler 34 is fixedly installed with a first liquid outlet pipe 5. The upper surface of the boiler 34 is fixedly installed with a first pump body 35, and the output end of the first pump body 35 extends into the inner cavity of the boiler 34. The adsorption component 9 includes a filter frame 92 and a sealing cover 91. The outer side walls of the filter frame 92 and the sealing cover 91 are both inserted into the inner side wall of the second slots 17. The upper surface of the disc 6 is provided with a number of first cylindrical slots 15. The lower surface of the first slots 15 is provided with a cylindrical air inlet hole 7. The upper surface of the sealing cover 91 is fixedly installed with a handle 93. The lower part of the inner side wall of the adsorption box 2 is fixedly installed with a disc 6. The inner cavity of the filter frame 92 is filled with a number of activated carbons.

[0029] The VOC is pumped into the boiler 34 by the first pump body 35 for combustion treatment, and the VOC is converted into CO 2 , H 2 O, and then enters the spray box 1 through the ventilation pipe 31. The second pump body 10 pumps the organic solvent into the distribution pipe 11, and atomizes and sprays it onto the VOC through the spray heads 13 to form liquid droplets. The liquid droplets fall into the spray box 1. The concave surface of the concave baffle 14 resists the mixed liquid. A very small part of the VOC that is not atomized can enter the adsorption box 2 through the through holes on the concave baffle 14, and enter the filter frame 92 through the air inlet hole 7 and the first slots 15, and is finally absorbed by the activated carbon. The liquid flows out through the second liquid outlet pipe 32, the first liquid outlet pipe 5, and the third liquid outlet pipe 8. The gas flows out from the filter holes on the filter frame 92, enters the adsorption box 2, and is discharged through the exhaust pipe 16. When it is necessary to replace the activated carbon, the sealing cover 91 and the filter frame 92 are removed from the adsorption box 2 through the handle 93, the sealing cover 91 is separated from the filter frame 92, the activated carbon in the filter frame 92 is poured out, and then new activated carbon is loaded into the filter frame 92. The sealing cover 91 is rotated, and the sealing cover 91 and the filter frame 92 are inserted into the second slots 17, which is convenient for replacing the activated carbon, improving the adsorption effect of the activated carbon on the VOC, and is easy to use.

[0030] Such asFigure 2 , Figure 3 As shown in Figure 3 , the lower surface of the inner cavity of the boiler 34 is inclined, and the lower surface of the inner cavity of the spray box 1 is in a conical structure.

[0031] Due to the special shapes of the inner cavities of the boiler 34 and the spray box 1, the liquid can flow along the inner wall into the bottoms of the boiler 34 and the spray box 1, and flow out through the first liquid outlet pipe 5 and the third liquid outlet pipe 8.

[0032] As Figure 4 shown in Figure 4 , a spiral cold water pipe 33 is arranged in the inner cavity of the ventilation pipe 31, and both ends of the cold water pipe 33 pass through the ventilation pipe 31 and extend to the outside. The left side in the middle of the inner cavity of the ventilation pipe 31 is higher than the right side, and a second liquid outlet pipe 32 is fixedly installed on the right part of the lower side of the outer surface of the ventilation pipe 31.

[0033] The cold water pipe 33 is arranged in a spiral shape to increase the cooling time of the VOC, so that the VOC can be liquefied. The left side in the middle of the inner cavity of the ventilation pipe 31 is higher than the right side, so that the liquefied liquid can be discharged from the ventilation pipe 31 through the second liquid outlet pipe 32.

[0034] As Figures 5-7 shown in Figures 5-7 , a socket cylinder 94 is fixedly installed on the lower surface of the filter frame 92. The inner side wall of the socket cylinder 94 is inserted and connected with the outer side wall of the first slot 15. A stud 95 is fixedly installed on the lower surface of the sealing cover 91. The outer side wall of the stud 95 is threadedly connected with the upper part of the inner side wall of the filter frame 92. The sealing cover 91 is made of rubber, and a wire mesh 96 is fixedly installed on the lower part of the inner side wall of the filter frame 92.

[0035] The sealing cover 91 and the filter frame 92 are removed from the adsorption box 2 through the handle 93. The sealing cover 91 is rotated. Under the threaded action of the stud 95 and the filter frame 92, the sealing cover 91 is separated from the filter frame 92. The activated carbon in the filter frame 92 is poured out, and then new activated carbon is loaded into the filter frame 92. The VOC can be adsorbed for a long time, and the adsorption effect of the activated carbon on the VOC is improved. The sealing cover 91 is rotated, and the sealing cover 91 and the filter frame 92 are inserted into the second slot 17, which is convenient for replacing the activated carbon and is easy to use. The second slot 17 is sealed by the sealing cover 91 to prevent gas from being discharged from the second slot 17. The wire mesh 96 is arranged to intercept the activated carbon in the filter frame 92.

[0036] The working principle of the present invention: The VOC is pumped into the boiler 34 by the first pump body 35 for combustion treatment, and the VOC is converted into CO 2 , H 2O, and then it is cooled by the cold water pipe 33 in the vent pipe 31 and enters the spray box 1. The second pump body 10 pumps the organic solvent into the distribution pipe 11, and atomizes and sprays it onto the VOC through the nozzle 13 to form liquid droplets. The liquid droplets fall into the spray box 1, and the concave surface of the concave baffle 14 is used to resist the mixed liquid. A very small part of the VOC that is not atomized can enter the adsorption box 2 through the through holes on the concave baffle 14, and enter the filter frame 92 through the air inlet hole 7, the first slot 15, the insertion cylinder 94, and the wire mesh 96, and is finally absorbed by the activated carbon. The liquid flows out through the second liquid outlet pipe 32, the first liquid outlet pipe 5, and the third liquid outlet pipe 8. The gas flows out from the filter holes on the filter frame 92 and enters the adsorption box 2, and is discharged through the exhaust pipe 16. The cold water pipe 33 is set in a spiral shape to increase the cooling time of the VOC, so that the VOC can be liquefied. When the activated carbon needs to be replaced, the sealing cover 91 and the filter frame 92 are removed from the adsorption box 2 through the handle 93, and the sealing cover 91 is rotated. Under the thread action of the stud 95 and the filter frame 92, the sealing cover 91 is separated from the filter frame 92. The activated carbon in the filter frame 92 is poured out, and then new activated carbon is loaded into the filter frame 92, which can adsorb the VOC for a long time and improve the adsorption effect of the activated carbon on the VOC. Rotate the sealing cover 91 and insert the sealing cover 91 and the filter frame 92 into the second slot 17, which is convenient for replacing the activated carbon and is easy to use.

[0037] The above has generally described the present invention in detail, but based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements that do not depart from the spirit of the present invention are all within the protection scope of the present invention.

Claims

1. A collector for reducing VOC emissions and collecting and treating tail gas, comprising a spray box (1), characterized in that: The upper portion of the outer wall of the spray box (1) is threadedly connected to an adsorption box (2); a box cover (4) is fixedly mounted on the upper portion of the inner wall of the adsorption box (2); a disc (6) is fixedly mounted on the lower portion of the inner wall of the adsorption box (2); a VOC combustion assembly (3) is fixedly mounted on the left side of the spray box (1); a liquid outlet pipe (3) (8) is fixedly mounted on the lower surface of the spray box (1); an exhaust pipe (16) passing through the box cover (4) is fixedly mounted on the upper surface of the box cover (4); a plurality of slots (17) are provided on the upper surface of the box cover (4); and the cross-section of the slots (17) is T-shaped. The spray box (1) has a structure in which an adsorption component (9) is inserted into the inner wall of the slot 2 (17), a concave baffle (14) is fixedly installed on the upper part of the inner wall of the spray box (1), a distribution pipe (11) is fixedly installed on the outer side of the lower surface of the concave baffle (14), three vertical pipes (12) are fixedly installed between the front and rear sides of the inner wall of the distribution pipe (11), and nozzles (13) are fixedly installed on the lower surfaces of the distribution pipe (11) and the vertical pipes (12), and a pump body 2 (10) is fixedly installed on the right side of the spray box (1), and the output end of the pump body 2 (10) is fixedly installed on the right side of the distribution pipe (11); The VOC combustion assembly (3) comprises a vent pipe (31), the right end of the vent pipe (31) being fixedly mounted on the left side of the spray box (1), a boiler (34) being fixedly mounted on the left end of the vent pipe (31), a liquid outlet pipe (5) being fixedly mounted on the lower left side of the boiler (34), a pump body (35) being fixedly mounted on the upper surface of the boiler (34), and an output end of the pump body (35) extending to the inner cavity of the boiler (34); The adsorption assembly (9) comprises a filter frame (92) and a sealing cover (91); the outer side walls of the filter frame (92) and the sealing cover (91) are plugged into the inner side wall of the second slot (17); the upper surface of the disk (6) is provided with a plurality of cylindrical first slots (15); the lower surface of the first slot (15) is provided with a cylindrical air inlet hole (7); a handle (93) is fixedly mounted on the upper surface of the sealing cover (91); the lower part of the inner side wall of the adsorption box (2) is fixedly mounted with a disk (6); and the inner cavity of the filter frame (92) is filled with a plurality of activated carbons.

2. A collector for reducing VOC emissions and collecting and treating tail gas according to claim 1, characterized in that: The lower surface of the inner cavity of the boiler (34) is inclined, and the lower surface of the inner cavity of the spray box (1) is a conical structure.

3. A collector for reducing VOC emissions and collecting and treating tail gas according to claim 1, characterized in that: The inner cavity of the ventilation pipe (31) is provided with a spiral cold water pipe (33), and both ends of the cold water pipe (33) pass through the ventilation pipe (31) and extend to the outside. The left side of the middle part of the inner cavity of the ventilation pipe (31) is higher than the right side. The lower right part of the outer surface of the ventilation pipe (31) is fixedly mounted with a second liquid outlet pipe (32).

4. The collector for reducing VOC emissions and collecting and treating tail gas according to claim 1, characterized in that: An insert cylinder (94) is fixedly mounted on the lower surface of the filter frame (92), and the inner side wall of the insert cylinder (94) is plugged into the outer side wall of the first slot (15).

5. The collector for reducing VOC emissions and collecting and treating tail gas according to claim 1, characterized in that: A stud (95) is fixedly mounted on the lower surface of the sealing cover (91); the outer wall of the stud (95) is threadedly connected to the upper portion of the inner wall of the filter frame (92); and the sealing cover (91) is made of rubber.

6. The collector for reducing VOC emissions and collecting and treating tail gas according to claim 1, characterized in that: A steel wire mesh (96) is fixedly mounted on the lower portion of the inner side wall of the filter frame (92).

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