CN214973063U

CN214973063U - Tail gas filtering system of multilayer co-extrusion heavy-duty film production line

Info

Publication number: CN214973063U
Application number: CN202121074907.4U
Authority: CN
Inventors: 杨顺鹏; 李茜茜
Original assignee: Dalian Shihua Welfare Factory
Current assignee: Dalian Shihua Welfare Factory
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-12-03
Anticipated expiration: 2031-05-19

Abstract

The utility model discloses a multilayer is crowded heavily and is carried membrane production line tail gas filtration system altogether belongs to tail gas recovery technical field. Comprises a printing machine (1), a filter box (2), a photocatalytic treatment device (3), an exhaust pipe (4), a fan (5), a corona machine (6) and a gas collecting tank (7); the printing machine (1) is connected with a filter box (2), the filter box (2) is connected with a photocatalytic treatment device (3), the photocatalytic treatment device (3) is connected with an exhaust pipe (4), and the exhaust pipe (4) is connected with a fan (5); one end of the photocatalytic treatment equipment (3) is connected with an exhaust port of the gas collecting tank (7); the gas collecting groove (7) is connected with a corona machine (6). The utility model has the advantages that: harmful gas of the printing machine is discharged out of a workshop after harmless treatment, and the requirement of environmental protection is met; ozone generated by the corona machine is recycled, and corrosion to surrounding structures is avoided.

Description

Tail gas filtering system of multilayer co-extrusion heavy-duty film production line

Technical Field

The utility model relates to a multilayer is crowded heavily loaded membrane production line tail gas filtration system altogether belongs to tail gas recovery technical field.

Background

When the printing machine is used, the printing machine can print products by using the printing ink with various colors, and because the printing ink belongs to a volatile medium, a large amount of volatile organic compounds are volatilized, belong to toxic and harmful gases, pollute the air and cause harm to the health of a human body;

in the actual production process, in order to increase the surface adhesion tension of the film, a corona machine is used, the raw material undergoes physical and chemical changes through corona treatment, and by-product ozone is generated to corrode surrounding steel members or adjacent equipment shells.

SUMMERY OF THE UTILITY MODEL

For the above-mentioned problem that solves prior art and exists, the application provides a multilayer is crowded heavy load membrane production line tail gas filtration system altogether, when the ozone that the recycle corona machine produced, guarantees the nontoxic emission of printing machine tail gas.

In order to achieve the purpose, the technical scheme of the application is that the tail gas filtering system of the multilayer co-extrusion heavy-duty film production line comprises a printing machine, a filter box, photocatalytic treatment equipment, an exhaust pipe, a fan, a corona machine and a gas collecting tank; the printing machine is connected with a filter box, the filter box is connected with a photocatalytic treatment device, the photocatalytic treatment device is connected with an exhaust pipe, and the exhaust pipe is connected with a fan; one end of the photocatalytic treatment equipment is connected with an exhaust port of the gas collecting tank; the gas collecting groove is connected with a corona machine.

Furthermore, the filter box comprises a box body, a straight cylinder section, a filter layer, a flange cover and active carbon; the flange cover is connected with the flange; the flange is connected with the straight cylinder section, the straight cylinder section is connected with the outer side of the box body, and the inner side of the box body is connected with the periphery of the filter layer; the filter layer is arranged in the filter box body in parallel, and the periphery of the filter layer is connected with the box body.

Furthermore, the flange cover and the flange are in bolt connection.

Furthermore, the periphery of the filter layer is connected with the box body in a welding mode.

Furthermore, the number of the filter layers in the filter box can be multiple.

Further, the filter layer is coplanar with the lowest point of the straight cylinder section.

Furthermore, the filter box and the filter layer are made of stainless steel.

Further, a plurality of the active carbon is arranged on the filter layer.

Further, the gas collecting groove is arranged at the bottom of the corona machine.

The utility model discloses owing to adopt above technical scheme, can gain following technological effect: harmful gas of the printing machine is discharged out of a workshop after harmless treatment, and the requirement of environmental protection is met; ozone generated by the corona machine is recycled, and corrosion to surrounding structures is avoided.

Drawings

FIG. 1 is a schematic structural diagram of a tail gas filtering system of a multilayer co-extrusion heavy-duty film production line;

FIG. 2 is a schematic view of a filter box;

the sequence numbers in the figures illustrate: 1. printing machine, 2, rose box, 3, photocatalysis treatment facility, 4, blast pipe, 5, fan, 6, corona treatment facility, 7, gas collecting tank, 8, filter layer, 9, active carbon, 10, flange lid, 11, flange, 12, straight section of thick bamboo, 13, box.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings 1-2 and the following detailed description: the present application is further described by taking this as an example.

Example 1

As shown in fig. 1-2, the embodiment provides a tail gas filtering system for a multilayer co-extrusion heavy-duty film production line, which includes a printing machine 1, a filter box 2, a photocatalytic treatment device 3, an exhaust pipe 4, a fan 5, a corona machine 6, and a gas collecting tank 7; the printing machine 1 is connected with a filter box 2, the filter box 2 is connected with a photocatalytic treatment device 3, the photocatalytic treatment device 3 is connected with an exhaust pipe 4, and the exhaust pipe 4 is connected with a fan 5; one end of the photocatalytic treatment equipment 3 is connected with an exhaust port of the gas collecting tank 7; the gas collecting groove 7 is connected with a corona machine 6.

The filter box 2 comprises a box body 13, a straight cylinder section 12, a filter layer 8, a flange 11, a flange cover 10 and active carbon 9; the flange cover 10 is connected with a flange 11; the flange 11 is connected with the straight cylinder section 12, the straight cylinder section is connected with the outer side of the box body 13, and the inner side of the box body 13 is connected with the periphery of the filter layer 8; the filter layer 8 is arranged in the filter box 2 in parallel, and the periphery of the filter layer 8 is connected with the box body 13.

The flange cover 10 is connected with the flange 11 through bolts.

The periphery of the filter layer 8 is connected with the box body 13 in a welding mode.

The number of the filter layers 8 in the filter box 2 can be multiple.

The filter layer 8 is coplanar with the lowest point of the straight cylinder section 12.

The filter box 2 and the filter layer 8 are made of stainless steel.

A number of said activated carbons 9 are placed on the filter layer 8.

The gas collecting groove 7 is arranged at the bottom of the corona machine 6.

Printing machine 1 is in the course of the work, use various colour printing ink to print the product, because printing ink belongs to volatile medium, it can produce a large amount of tail gas to volatilize, the tail gas adsorbs the back with the vaporific particulate matter that volatilizees in the printing ink through active carbon 9 in the rose box 2, again through photocatalytic treatment equipment 3, 185nm that the ultraviolet tube in photocatalytic treatment equipment 3 sent shines the light irradiation tail gas, organic compound class in the schizolysis tail gas, make organic or inorganic macromolecular pollutant molecular chain, the schizolysis under the ultraviolet ray beam irradiation, the oxidation is little molecular compound, the free oxygen that utilizes the oxygen molecule production in the UV ultraviolet ray beam decomposition air, because the portable positive and negative electron of free oxygen is unbalanced, so need to combine with the oxygen molecule, and then produce ozone. The reaction formula is as follows: UV + O2 → O + O (free oxygen), O or O + O2 → O3 (ozone), the UV ultraviolet beam, ozone and ozone recovered from the gas collecting tank 7 from the corona treatment device 6 are used to carry out the synergistic decomposition and oxidation reaction on the tail gas, so that the tail gas is degraded and converted into low molecular compounds, water and carbon dioxide, and the degraded tail gas is discharged through the exhaust pipe 4 by the negative pressure generated by the fan 5.

According to the size of the printing machine, a filtering box body is manufactured, and a cubic box body manufactured by welding stainless steel plates is integrally adopted, wherein the cubic box body is about 1m by 1 m. Two layers of filter screens are arranged in the box body, two sides of the box body are respectively provided with a round hole with the diameter of about 400mm, and the round holes respectively correspond to 1 layer of filter screen and are used for placing or replacing the activated carbon bag. The activated carbon is used for adsorbing harmful particles volatilized from the printing ink, and the activated carbon bags are uniformly placed and are fully paved on each layer of filter screen without gaps. The bottom of the uniform filtering box body is connected with the upper part of the printing machine, and the box body is connected with the printing machine through a flange.

The photocatalytic treatment equipment 3 is arranged at the top of the filter box 2 and is connected with the filter box 2 in a flange mode. The recycling of corona machine tail gas (ozone), the bottom of preparation gas-collecting tank 7 and installation corona treatment equipment 6, introduce the ozone that the corona machine produced in the photocatalysis treatment equipment 3 through the pipeline.

The exhaust pipe 4 is a spiral weld steel pipe with the diameter of about 400mm, the bottom of the exhaust pipe is connected with the filtering box body, and the upper part of the exhaust pipe extends out of the roof and is connected with an exhaust fan.

The blower fan 5 buys about 2KW and is connected with the exhaust pipeline, so that negative pressure is formed in the filter box body and the pipeline, and the internal air is pumped out.

The above, only for the utility model discloses create the concrete implementation way of preferred, nevertheless the utility model discloses the protection scope of creation is not limited to this, and any person skilled in this technical field is in the utility model discloses create the technical scope of disclosure, according to the utility model discloses the technical scheme of creation and utility model design equivalence replacement or change all should be covered in the protection scope of creation of the utility model.

Claims

1. The tail gas filtering system of the multilayer co-extrusion heavy-duty film production line is characterized by comprising a printing machine (1), a filter box (2), a photocatalytic treatment device (3), an exhaust pipe (4), a fan (5), a corona machine (6) and a gas collecting tank (7); the printing machine (1) is connected with a filter box (2), the filter box (2) is connected with a photocatalytic treatment device (3), the photocatalytic treatment device (3) is connected with an exhaust pipe (4), and the exhaust pipe (4) is connected with a fan (5); one end of the photocatalytic treatment equipment (3) is connected with an exhaust port of the gas collecting tank (7); the gas collecting groove (7) is connected with a corona machine (6).

2. The tail gas filtering system of a multilayer co-extrusion heavy-duty film production line according to claim 1, wherein the filtering box (2) comprises a box body (13), a straight cylinder section (12), a filtering layer (8), a flange (11), a flange cover (10) and activated carbon (9); the flange cover (10) is connected with a flange (11); the flange (11) is connected with the straight cylinder section (12), the straight cylinder section is connected with the outer side of the box body (13), and the inner side of the box body (13) is connected with the periphery of the filter layer (8); the filter layer (8) is arranged in the filter box (2) in parallel, and the periphery of the filter layer (8) is connected with the box body (13).

3. The tail gas filtering system of a multilayer co-extrusion heavy-duty film production line according to claim 2, characterized in that the flange cover (10) and the flange (11) are in bolted connection.

4. The tail gas filtering system of a multilayer co-extrusion heavy-duty film production line as claimed in claim 2, wherein the periphery of the filtering layer (8) is connected with the box body (13) by welding.

5. The tail gas filtering system of a multilayer co-extrusion heavy-duty film production line as claimed in claim 4, wherein the number of the filter layers (8) in the filter box (2) can be multiple.

6. The tail gas filtering system of a multi-layer co-extrusion heavy-duty film production line according to claim 5, characterized in that the filter layer (8) is coplanar with the lowest point of the straight cylinder section (12).

7. The tail gas filtering system of a multilayer co-extrusion heavy-duty membrane production line as claimed in claim 5, wherein the filtering tank (2) and the filtering layer (8) are made of stainless steel.

8. A multi-layer co-extrusion heavy load film production line tail gas filtering system as claimed in claim 2, wherein a plurality of the activated carbons (9) are placed on the filtering layer (8).

9. The tail gas filtering system of the multilayer co-extrusion heavy-duty film production line as claimed in claim 1, wherein the gas collecting tank (7) is arranged at the bottom of the corona machine (6).