CN215428116U

CN215428116U - Energy-conserving NMP gas recovery device

Info

Publication number: CN215428116U
Application number: CN202022569206.XU
Authority: CN
Inventors: 方步思
Original assignee: Fujian Weishimei Technology Co Ltd
Current assignee: Fujian Weishimei Technology Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2022-01-07
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses an energy-saving NMP gas recovery device, which belongs to the technical field of waste gas treatment devices and comprises a first filter tank and a second filter tank arranged on one side of the first filter tank, wherein the second filter tank and the first filter tank are distributed in a staggered manner, the first filter tank is sequentially provided with a first exhaust port, a spray dissolution layer, a first air inlet and a first liquid storage layer from top to bottom, the first air inlet is used for receiving NMP gas, the second filter tank is sequentially provided with a second exhaust port, a spray adsorption layer, a second air inlet and a second liquid storage layer from top to bottom, the first exhaust port is connected with the second air inlet through an exhaust pipeline, the spray dissolution layer is provided with a first spray pipe, the first liquid storage layer is connected with the first spray pipe through a first pipeline, the first pipeline is provided with a section of S-shaped bent pipe, and the outer side of the S-shaped bent pipe is provided with a condenser, the utility model has the advantage of efficiently recovering NMP gas.

Description

Energy-conserving NMP gas recovery device

Technical Field

The utility model relates to the technical field of waste gas treatment devices, in particular to an energy-saving NMP gas recovery device.

Background

In recent years, with global popularization of new energy policy, the lithium battery industry has well-spraying growth, NMP is an irreplaceable organic solvent in the lithium battery industry and other industries, is widely and massively applied and is high in price, and direct emission of NMP waste gas has certain harm to the environment, so that emission must be limited.

Therefore, the technical personnel in the related art improves the technology, for example, the Chinese patent with the authorization number of CN207694553U proposes "an energy-saving NMP gas recovery device", which comprises an air inlet chamber, a water dissolving layer, a gas-liquid separation layer and a heating chamber, although the utility model can meet the requirements of recovering NMP by the heat energy of NMP waste gas, saving energy and protecting environment.

However, the technical solution in this document still has the disadvantage that when dissolving the NMP gas through the water-soluble layer, a part of NMP gas which is not dissolved in water is discharged to the outside along with the exhaust pipe.

Based on the above, the utility model designs an energy-saving NMP gas recovery device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an energy-saving NMP gas recovery device to solve the technical problem.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an energy-conserving NMP gas recovery unit, includes first filtration jar and locates first filtration jar of second of one side, just the second filter the jar with first filtration jar dislocation height distributes, first filtration jar from the top down is equipped with first gas vent in proper order, sprays dissolving layer, first air inlet, first stock solution layer, first air inlet is used for receiving NMP gas, the second filters jar from the top down and is equipped with the second gas vent in proper order, sprays adsorbed layer, second air inlet and second stock solution layer, first gas vent with the second air inlet passes through exhaust duct and connects, it is equipped with first spray tube on the dissolving layer to spray, first stock solution layer with through first pipe connection between the first spray tube, one section S type return bend has on the first pipeline, the outside of S type return bend is equipped with the condenser.

Preferably, the spraying and dissolving layer is provided with partition plates in a staggered manner, the partition plates are positioned below the first spray pipe, and the partition plates are provided with a plurality of through holes at intervals.

Preferably, it is equipped with the second spray tube to spray the adsorbed layer top, it is equipped with a plurality of isolating device along its direction of height interval to spray the adsorbed layer, just isolating device is located the below of second spray tube, isolating device includes the L template that two intervals set up, one of them arbitrary the one end of L template with the second filters the interior wall connection of jar, another the L template is close to the second filters the one end of jar inner wall and is equipped with the guide plate, two it overflows the passageway to have between the L template, it is equipped with the cell type apron to overflow the top of passageway.

Preferably, the second filtering tank is further provided with a filtering and adsorbing layer, and the filtering and adsorbing layer is located between the second exhaust port and the sprayed adsorbing layer.

Preferably, a second pipeline is arranged between the second liquid storage layer and the first liquid storage layer, one end of the second pipeline is communicated with the second liquid storage layer, and the other end of the second pipeline is communicated with the first liquid storage layer.

Preferably, a water pump is arranged on the first pipeline.

Compared with the prior art, the utility model has the beneficial effects that: set up first filtration jar, the jar is filtered to the second, NMP is gaseous through first air inlet entering first filtration jar, NMP is gaseous in first filtration jar after spraying the solution layer and absorbing, partial unabsorbed NMP is gaseous through exhaust duct entering second filtration jar in, NMP is gaseous in the second filtration jar through spraying the adsorbed layer and filtering the adsorbed layer back discharge, NMP is gaseous through first filtration jar and second filtration jar and dissolves the recovery, has improved the gaseous recovery efficiency of NMP.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic structural view of a first canister in the present embodiment;

fig. 3 is a schematic structural view of a second canister in this embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a first filtration tank; 11. a first exhaust port; 12. spraying a dissolving layer; 121. a first nozzle; 122. a partition plate; 123. a through hole; 13. a first air inlet; 14. a first liquid storage layer; 2. a second filtration tank; 21. a second exhaust port; 22. spraying an adsorption layer; 221. a second nozzle; 23. a second air inlet; 24. a second liquid storage layer; 3. an exhaust duct; 4. a first conduit; 41. an S-shaped bent pipe; 6. a condenser; 7. an isolation device; 71. an L-shaped plate; 72. a baffle; 73. a trough-shaped cover plate; 8. an adsorption layer; 9. a water pump; 10. a second conduit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an energy-saving NMP gas recovery device comprises a first filter tank 1 and a second filter tank 2 arranged on one side of the first filter tank 1, wherein the second filter tank 2 and the first filter tank 1 are staggered and distributed in height, the first filter tank 1 is sequentially provided with a first exhaust port 11, a spray dissolution layer 12, a first air inlet 13 and a first liquid storage layer 14 from top to bottom, the first air inlet 13 is used for receiving NMP gas, the second filter tank 2 is sequentially provided with a second exhaust port 21, a spray adsorption layer 22, a second air inlet 23 and a second liquid storage layer 24 from top to bottom, the first exhaust port 11 is connected with the second air inlet 23 through an exhaust pipeline 3, the spray dissolution layer 12 is provided with a first spray pipe 121, the first liquid storage layer 14 is connected with the first spray pipe 121 through a first pipeline 4, the first pipeline 4 is provided with a section of S-shaped elbow 41, and a condenser 6 is arranged on the outer side of the S-shaped bent pipe 41.

Preferably, the partition plates 122 are alternately arranged on the spray dissolution layer 12, the partition plates 122 are located below the first spray pipes 121, the partition plates 122 are provided with a plurality of through holes 123 at intervals, and the through holes 123 are arranged, so that on one hand, water sprayed from the first spray pipes 121 flows to the first liquid storage layer 14 through the through holes 123, on the other hand, NMP gas flows through the through holes 123, and when the NMP gas meets water, the NMP gas is dissolved in the water.

Preferably, it is equipped with second spray tube 221 to spray adsorption layer 22 top, it is equipped with a plurality of isolating device 7 along its direction of height interval to spray adsorption layer 22, just isolating device 7 is located the below of second spray tube 221, isolating device 7 includes the L template 71 that two intervals set up, wherein arbitrary one the one end of L template 71 with the second filters the interior wall connection of jar 2, another L template 71 is close to the one end that jar 2 inner wall was filtered to the second is equipped with guide plate 72, two overflow the passageway has between the L template 71, overflow the top of passageway and be equipped with cell type apron 73, set up guide plate 73, NMP gas passes through on guide plate 73 reachs isolating device 7, intersects and dissolves in water with the water on the isolating device, flows to second liquid storage layer 24 through overflow the passageway when water is full.

Preferably, the second filter tank 2 is further provided with a filtering and adsorbing layer 8, the filtering and adsorbing layer 8 is located between the second exhaust port 21 and the sprayed adsorbing layer 22, and the filtering and adsorbing layer 8 is arranged, so that the exhausted gas is ensured to be free of NMP gas.

Preferably, a second pipeline 10 is arranged between the second liquid storage layer 24 and the first liquid storage layer 14, one end of the second pipeline 10 is communicated with the second liquid storage layer 24, and the other end is communicated with the first liquid storage layer 14.

Preferably, a water pump 9 is arranged on the first pipeline 4, and the water pump 9 is arranged to facilitate the water in the first liquid storage layer 14 to be conveyed to the first spray pipe 121.

One specific application of this embodiment is: the NMP gas-containing gas enters the first filter tank 1 through the first gas inlet 13, firstly the NMP gas is firstly dissolved in water through the spray dissolution layer 12, the undissolved NMP gas reaches the second filter tank 2 through the exhaust pipe, in the second filter tank 2, the NMP gas sequentially passes through the spray adsorption layer 22, after the adsorption layer 8 is filtered, the NMP gas-free gas is discharged through the second exhaust port 21, and the water containing the NMP gas flows to the condenser 6 through the first pipeline 4 for cooling treatment.

In conclusion, set up first filter tank 1, jar 2 is filtered to the second, NMP gas gets into first filter tank 1 through first air inlet 13, NMP gas is after spraying dissolving layer 12 absorption in first filter tank 1, partial unabsorbed NMP gas gets into in jar 2 is filtered to the second through exhaust duct 3, NMP gas is discharged after spraying adsorbed layer 22 and filtering adsorbed layer 8 in jar 2 is filtered to the second, NMP gas is through first filter tank 1 and the second filter tank 2 of filtering and dissolves the recovery, NMP gas's recovery efficiency has been improved.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The energy-saving NMP gas recovery device is characterized by comprising a first filtering tank (1) and a second filtering tank (2) arranged on one side of the first filtering tank (1), wherein the second filtering tank (2) and the first filtering tank (1) are staggered in height, the first filtering tank (1) is sequentially provided with a first exhaust port (11), a spraying dissolving layer (12), a first air inlet (13) and a first liquid storage layer (14) from top to bottom, the first air inlet (13) is used for receiving NMP gas, the second filtering tank (2) is sequentially provided with a second exhaust port (21), a spraying adsorption layer (22), a second air inlet (23) and a second liquid storage layer (24) from top to bottom, the first exhaust port (11) is connected with the second air inlet (23) through an exhaust pipeline (3), and a first spray pipe (121) is arranged on the spraying dissolving layer (12), first stock solution layer (14) with connect through first pipeline (4) between first spray tube (121), first pipeline (4) are gone up and are had one section S type return bend (41), the outside of S type return bend (41) is equipped with condenser (6).

2. An energy-saving NMP gas recovery apparatus according to claim 1, characterized in that: the spraying and dissolving layer (12) is provided with partition plates (122) in a staggered mode, the partition plates (122) are located below the first spray pipe (121), and the partition plates (122) are provided with a plurality of through holes (123) at intervals.

3. An energy-saving NMP gas recovery apparatus according to claim 1, characterized in that: spray adsorbed layer (22) top and be equipped with second spray tube (221), it is equipped with a plurality of isolating device (7) along its direction of height interval to spray adsorbed layer (22), just isolating device (7) are located the below of second spray tube (221), isolating device (7) are including L template (71) that two intervals set up, wherein arbitrary one the one end of L template (71) with the second filters the interior wall connection of jar (2), another L template (71) are close to the one end that jar (2) inner wall was filtered to the second is equipped with guide plate (72), two it overflows the passageway to have between L template (71), it is equipped with cell type apron (73) to overflow the top of passageway.

4. An energy-saving NMP gas recovery apparatus according to claim 1, characterized in that: the second filter tank (2) is further provided with a filter adsorption layer (8), and the filter adsorption layer (8) is located between the second exhaust port (21) and the sprayed adsorption layer (22).

5. An energy-saving NMP gas recovery apparatus according to claim 1, characterized in that: a second pipeline (10) is arranged between the second liquid storage layer (24) and the first liquid storage layer (14), one end of the second pipeline (10) is communicated with the second liquid storage layer (24), and the other end of the second pipeline is communicated with the first liquid storage layer (14).

6. An energy-saving NMP gas recovery apparatus according to claim 1, characterized in that: and a water pump (9) is arranged on the first pipeline (4).