CN212548858U - Film coating drying tail gas absorption device - Google Patents
Film coating drying tail gas absorption device Download PDFInfo
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- CN212548858U CN212548858U CN202021110933.3U CN202021110933U CN212548858U CN 212548858 U CN212548858 U CN 212548858U CN 202021110933 U CN202021110933 U CN 202021110933U CN 212548858 U CN212548858 U CN 212548858U
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- tail gas
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- photodissociation
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Abstract
The utility model discloses a film coating drying tail gas absorption device, which comprises a large-particle solid filtering device, a condensing device, a water washing device, a UV photolysis device and an active carbon adsorption device which are connected in sequence; the utility model discloses a set up condensation recovery, washing in succession, UV photodissociation and active carbon absorption technology, carry out recovery processing to the waste gas that produces in the production, specifically, in the washing process, tail gas moves from bottom to top in the washing tank body after through the dispersion impeller dispersion, the circulating water moves from top to bottom in the washing tank body after through the dispersion impeller dispersion, the circulating water can be with the liquid drop of condensation and water-soluble organic waste gas in the tail gas retrieve, the waste gas after the processing gets into UV photodissociation device after removing the circulating water liquid drop through the treatment of vapour and liquid separator; UV photodissociation device is through the mobile time of extension pending tail gas in UV photodissociation device, and extension photodissociation time promotes the photodissociation effect, and whole process does not produce secondary hazard, has carried out abundant absorption to tail gas and has handled.
Description
Technical Field
The utility model belongs to the technical field of the membrane material processing equipment, it is specific, relate to a dry tail gas absorbing device coats with film.
Background
In the processing process of the membrane material, according to the production requirement, a layer of modified material or adhesive material needs to be coated on the surface of the membrane material, after the coating is finished, the modified material or adhesive on the surface of the membrane material needs to be dried by a drying device, and as the coating material mostly takes an organic solvent as a dispersion liquid, a large amount of organic waste gas is generated in the drying process, and in order to reduce the harm of the production process to the environment, the organic gas generated in the drying process needs to be collected;
in the prior art, when tail gas is recycled, a one-stage or multi-stage recycling device is used for recycling the tail gas, but because components in the tail gas are complex, the tail gas is poor in treatment effect when a single collection treatment mode is adopted for treating the tail gas, so that the discharged tail gas still contains a large amount of impurities.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dry tail gas absorbing device coats a film.
The utility model discloses the technical problem who needs to solve does:
when carrying out recovery processing to tail gas among the prior art, adopt one-level or multistage recovery unit to retrieve tail gas, but because the composition is complicated in the tail gas, the treatment effect when adopting single collection processing mode to handle tail gas is relatively poor, still contains a large amount of impurity in the tail gas that leads to discharging.
The purpose of the utility model can be realized by the following technical scheme:
a tail gas absorption device for film coating drying comprises a large-particle solid filtering device, a condensing device, a water washing device, a UV photolysis device and an active carbon adsorption device which are connected in sequence;
the large-particle solid filtering device is a bag-type dust collector;
the condensing device is a condenser;
the water washing device comprises a water washing tank body, the bottom of the water washing tank body is communicated with a first circulating pipe, the first circulating pipe is connected with a second circulating pipe through a centrifugal pump, and the water at the bottom of the water washing tank body is pumped to the second circulating pipe through the centrifugal pump;
the inner wall of the washing tank body is fixedly provided with two dispersion discs, each dispersion disc comprises an adapter tube and a plurality of concentrically arranged annular tube bodies with different diameters, the adapter tubes are communicated with the annular tube bodies through a plurality of connecting straight tubes, and the side wall of each annular tube body is provided with a plurality of through holes penetrating through the side wall of the annular tube body;
one end of the second circulating pipe is connected with a switching pipe of one dispersion disc, the switching pipe of the other dispersion disc is connected with one end of a first gas transmission pipeline, and the other end of the first gas transmission pipeline is connected with the gas outlet end of a condensing device;
the UV photolysis device comprises a photolysis box, a plurality of interlayer regions are formed in the photolysis box through division of a first partition plate, a plurality of second partition plates are fixedly arranged in the interlayer regions, the interlayer regions are divided into a plurality of air passing grooves by the second partition plates, a distance is reserved between the end part of each second partition plate and the inner wall of the photolysis box to form an air passing hole, and two adjacent air passing holes are respectively arranged at two ends of the photolysis box;
one end of the gas trough positioned on one side of the uppermost interlayer region is connected with a first gas inlet pipe, one end of the bottom of the gas trough positioned on one side of the uppermost interlayer region is provided with a gas guide through hole communicated with the next interlayer region, and tail gas to be treated flows in an S shape in the interlayer regions;
a UV strong ultraviolet lamp tube is arranged above each air-passing groove;
one end of the air trough positioned on one side of the interlayer region of the lowest layer is connected with a first air outlet pipe, and the first air outlet pipe is connected with a second air inlet end of the activated carbon adsorption device through a pipeline.
As a further proposal of the utility model, the washing tank body is connected with vapour and liquid separator through second gas transmission pipeline, and vapour and liquid separator is connected with the first intake pipe of UV photodissociation device through third gas transmission pipeline.
As a further scheme of the utility model, activated carbon adsorption device is including adsorbing the case and setting up a plurality of activated carbon adsorption boards in the adsorption case, and the both ends of adsorbing the case are provided with the second inlet end respectively and give vent to anger the end with the second, and the top of adsorbing the case is provided with the socket that runs through the adsorption tank roof, and the bottom of adsorbing the case corresponds the socket and is provided with the bottom seal groove.
As a further scheme of the utility model, the activated carbon adsorption board includes top fixed plate and bottom fixed plate, and the fixed metal mesh frame that is provided with between top fixed plate and the bottom fixed plate, the fixed non-woven fabrics layer that is provided with on the inner wall of metal mesh frame, the intussuseption of metal mesh frame are filled with the activated carbon layer, the top fixed plate of activated carbon adsorption board passes through bolt fixed mounting at the top of adsorption tank, bottom fixed plate and the sealed butt joint of bottom seal groove.
The utility model has the advantages that:
the utility model discloses a set up condensation recovery in succession, washing, UV photodissociation and active carbon absorption technology, carry out recovery processing to the waste gas that produces in the production, it is specific, in the washing process, through first gas transmission pipeline to washing tank internal input condensation recovery processing's tail gas, tail gas passes through dispersion panel dispersion back and moves from bottom to top in washing tank internal, and first circulating pipe passes through the centrifugal pump with the circulating water pump in washing tank to in the second circulating pipe, and through dispersion panel dispersion back in washing tank internal top-down motion, the circulating water that sprays down can be retrieved the liquid drop of condensation and water-soluble organic waste gas in the tail gas, the waste gas after the processing gets into UV photodissociation device after handling through the vapour and liquid separator and removing the circulating water liquid drop; the working method of the UV photolysis device comprises the following steps: form a plurality of S-shaped flow areas that are linked together through first baffle and the interior space segmentation of second baffle with the photodissociation case to prolonged the mobile time of pending tail gas in UV photodissociation device, extension photodissociation time promotes the photodissociation effect, and whole process does not produce the secondary harm, has carried out abundant absorption to tail gas and has handled, has guaranteed the feature of environmental protection of production.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of a simple structure of a film coating drying tail gas absorption device according to the present invention;
FIG. 2 is a schematic view of the structure of the water washing apparatus;
FIG. 3 is a schematic structural view of a dispersion tray;
FIG. 4 is a schematic diagram of the structure of the UV photolysis apparatus;
FIG. 5 is a top view of the UV photolysis apparatus;
fig. 6 is a schematic structural diagram of an activated carbon adsorption device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
A coating film drying tail gas absorption device, as shown in fig. 1 to 6, comprising a large-particle solid filtering device, a condensing device, a water washing device, a UV photolysis device and an activated carbon adsorption device which are connected in sequence;
the large-particle solid filtering device is a bag-type dust collector and is used for filtering solid-phase particles in the film coating drying tail gas;
the condensing device is a condenser and is used for condensing and recovering part of organic matters in the film coating drying tail gas;
the water washing device comprises a water washing tank body 11, the bottom of the water washing tank body 11 is communicated with a first circulating pipe 18, the first circulating pipe 18 is connected with a second circulating pipe 12 through a centrifugal pump, and the water at the bottom of the water washing tank body 11 is pumped to the second circulating pipe 12 through the centrifugal pump;
the inner wall of the water washing tank body 11 is fixedly provided with two dispersion discs 13, each dispersion disc 13 comprises an adapter tube 131 and a plurality of concentrically arranged annular tube bodies 133 with different diameters, the adapter tube 131 is communicated with the annular tube bodies 133 through a plurality of connecting straight tubes 132, and the side wall of each annular tube body 133 is provided with a plurality of through holes penetrating through the annular tube bodies 133;
one end of the second circulating pipe 12 is connected with an adapter pipe 131 of one dispersion disc 13, the adapter pipe 131 of the other dispersion disc 13 is connected with one end of a first gas transmission pipeline 14, and the other end of the first gas transmission pipeline 14 is connected with the gas outlet end of a condensing device;
the water washing tank body 11 is connected with a gas-liquid separator 16 through a second gas pipeline 15, and the gas-liquid separator 16 is connected with a first gas inlet pipe 22 of the UV photolysis device through a third gas pipeline 17;
the working method of the washing device of the utility model is that tail gas after condensation recovery treatment is input into the washing tank body 11 through the first gas transmission pipeline 14, the tail gas moves from bottom to top in the washing tank body 11 after being dispersed by the dispersion disc 13, the first circulating pipe 18 pumps circulating water in the washing tank body 11 into the second circulating pipe 12 through a centrifugal pump, and moves from top to bottom in the washing tank body 11 after being dispersed by the dispersion disc 13, the sprayed circulating water can recover condensed liquid drops and water-soluble organic waste gas in the tail gas, and the treated waste gas enters the UV photolysis device after being treated by the gas-liquid separator 16 to remove the circulating water liquid drops;
the UV photolysis device comprises a photolysis box 21, a plurality of interlayer regions 25 are formed in the photolysis box 21 through the division of a first partition plate 24, a plurality of second partition plates 26 are fixedly arranged in the interlayer regions 25, the interlayer regions are divided into a plurality of air passing grooves 29 by the plurality of second partition plates 26, a certain distance is reserved between the end part of each second partition plate 26 and the inner wall of the photolysis box 21 to form an air passing hole 27, and two adjacent air passing holes 27 are respectively positioned at two ends of the photolysis box 21;
one end of the air trough 29 at one side of the uppermost interlayer region 25 is connected with a first air inlet pipe 22, one end of the bottom of the air trough 29 at one side of the uppermost interlayer region 25 is provided with an air guide through hole communicated with the next interlayer region 25, and tail gas to be treated flows in an S shape in the interlayer region 25;
a UV strong ultraviolet lamp tube is arranged above each air-passing groove 29;
one end of the air trough 29 positioned at one side of the interlayer region 25 at the lowest layer is connected with a first air outlet pipe 23, and the first air outlet pipe 23 is connected with a second air inlet end 32 of an activated carbon adsorption device through a pipeline;
the working method of the UV photolysis device is as follows: the inside space of the photolysis tank 21 is divided into a plurality of S-shaped flow areas communicated with each other by the first partition plate 24 and the second partition plate 26, so that the flow time of the tail gas to be treated in the UV photolysis device is prolonged, the photolysis time is prolonged, and the photolysis effect is improved.
The activated carbon adsorption device comprises an adsorption tank 31 and a plurality of activated carbon adsorption plates 4 arranged in the adsorption tank 31, wherein a second air inlet end 32 and a second air outlet end 33 are respectively arranged at two ends of the adsorption tank 31, a socket 34 penetrating through the top wall of the adsorption tank 31 is arranged at the top of the adsorption tank 31, and a bottom sealing groove 35 is arranged at the bottom of the adsorption tank 31 corresponding to the socket 34;
the activated carbon adsorption plate 4 comprises a top fixing plate 41 and a bottom fixing plate 42, a metal mesh outer frame 43 is fixedly arranged between the top fixing plate 41 and the bottom fixing plate 42, a non-woven fabric layer 44 is fixedly arranged on the inner wall of the metal mesh outer frame 43, an activated carbon layer 45 is filled in the metal mesh outer frame 43, the top fixing plate 41 of the activated carbon adsorption plate 4 is fixedly arranged at the top of the adsorption box 31 through bolts, and the bottom fixing plate 42 is in sealed butt joint with the bottom sealing groove 35;
activated carbon adsorption device is provided with a plurality of layers of activated carbon adsorption plate 4 through the activity in adsorption tank 31 to activated carbon adsorption plate 4's change convenience has been promoted.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (4)
1. A tail gas absorption device for film coating drying is characterized by comprising a large-particle solid filtering device, a condensing device, a water washing device, a UV photolysis device and an active carbon adsorption device which are sequentially connected;
the large-particle solid filtering device is a bag-type dust collector;
the condensing device is a condenser;
the water washing device comprises a water washing tank body (11), the bottom of the water washing tank body (11) is communicated with a first circulating pipe (18), the first circulating pipe (18) is connected with a second circulating pipe (12) through a centrifugal pump, and the water at the bottom of the water washing tank body (11) is pumped to the second circulating pipe (12) through the centrifugal pump;
the inner wall of the water washing tank body (11) is fixedly provided with two dispersion discs (13), each dispersion disc (13) comprises an adapter tube (131) and a plurality of concentrically arranged annular tube bodies (133) with different diameters, the adapter tubes (131) are communicated with the annular tube bodies (133) through a plurality of connecting straight tubes (132), and the side wall of each annular tube body (133) is provided with a plurality of through holes penetrating through the side wall of the annular tube body (133);
one end of the second circulating pipe (12) is connected with a switching pipe (131) of one dispersion disc (13), the switching pipe (131) of the other dispersion disc (13) is connected with one end of a first gas transmission pipeline (14), and the other end of the first gas transmission pipeline (14) is connected with the gas outlet end of a condensing device;
the UV photolysis device comprises a photolysis box (21), a plurality of interlayer regions (25) are formed in the photolysis box (21) through the division of a first partition plate (24), a plurality of second partition plates (26) are fixedly arranged in the interlayer regions (25), the interlayer regions are divided into a plurality of air passing grooves (29) by the plurality of second partition plates (26), a distance is reserved between the end part of each second partition plate (26) and the inner wall of the photolysis box (21) to form an air passing port (27), and two adjacent air passing ports (27) are respectively arranged at two ends of the photolysis box (21);
one end of the air channel (29) at one side of the uppermost interlayer region (25) is connected with a first air inlet pipe (22), one end of the bottom of the air channel (29) at one side of the uppermost interlayer region (25) is provided with an air guide through hole communicated with the next interlayer region (25), and tail gas to be treated flows in an S shape in the interlayer region (25);
a UV strong ultraviolet lamp tube is arranged above each air-passing groove (29);
one end of the air-passing groove (29) positioned at one side of the interlayer region (25) of the lowest layer is connected with a first air outlet pipe (23), and the first air outlet pipe (23) is connected with a second air inlet end (32) of the activated carbon adsorption device through a pipeline.
2. The tail gas absorption device for drying the coated film according to claim 1, wherein the water washing tank (11) is connected with a gas-liquid separator (16) through a second gas pipeline (15), and the gas-liquid separator (16) is connected with a first gas inlet pipe (22) of a UV photolysis device through a third gas pipeline (17).
3. The tail gas absorption device for film coating drying according to claim 1, wherein the activated carbon adsorption device comprises an adsorption tank (31) and a plurality of activated carbon adsorption plates (4) arranged in the adsorption tank (31), a second gas inlet end (32) and a second gas outlet end (33) are respectively arranged at two ends of the adsorption tank (31), a socket (34) penetrating through the top wall of the adsorption tank (31) is arranged at the top of the adsorption tank (31), and a bottom sealing groove (35) is arranged at the bottom of the adsorption tank (31) corresponding to the socket (34).
4. The tail gas absorption device for the coating film drying according to claim 3, wherein the activated carbon adsorption plate (4) comprises a top fixing plate (41) and a bottom fixing plate (42), a metal mesh outer frame (43) is fixedly arranged between the top fixing plate (41) and the bottom fixing plate (42), a non-woven fabric layer (44) is fixedly arranged on the inner wall of the metal mesh outer frame (43), an activated carbon layer (45) is filled in the metal mesh outer frame (43), the top fixing plate (41) of the activated carbon adsorption plate (4) is fixedly arranged at the top of the adsorption tank (31) through bolts, and the bottom fixing plate (42) is in sealing butt joint with the bottom sealing groove (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021110933.3U CN212548858U (en) | 2020-06-16 | 2020-06-16 | Film coating drying tail gas absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021110933.3U CN212548858U (en) | 2020-06-16 | 2020-06-16 | Film coating drying tail gas absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212548858U true CN212548858U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021110933.3U Active CN212548858U (en) | 2020-06-16 | 2020-06-16 | Film coating drying tail gas absorption device |
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|---|---|
| CN (1) | CN212548858U (en) |
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- 2020-06-16 CN CN202021110933.3U patent/CN212548858U/en active Active
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