CN221451755U

CN221451755U - NMP waste gas recovery device

Info

Publication number: CN221451755U
Application number: CN202322932115.1U
Authority: CN
Inventors: 王强
Original assignee: Shandong Dongyue Polymer Material Co Ltd
Current assignee: Shandong Dongyue Polymer Material Co Ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-08-02
Anticipated expiration: 2033-10-31

Abstract

The utility model belongs to the technical field of NMP waste gas recovery, and discloses an NMP waste gas recovery device, which comprises a purifying box component, wherein one side of the purifying box component is fixedly connected with a cooling component, the other side of the purifying box component is fixedly connected with a condensing component, and the front surface of the purifying box component is fixedly connected with a collecting component; according to the utility model, NMP waste gas to be treated is injected into the inner side of the purifying box main body through the air inlet, harmful substances in the NMP waste gas are condensed and adsorbed on the outer side of the second annular plate through the cooling component, the NMP waste gas after preliminary condensation enters into the other side of the purifying box main body through the bottom of the first partition plate, and the NMP waste gas at the other side of the inner part is further condensed through the condensing component and adsorbed on the outer wall of the first annular pipe, so that the NMP waste gas can be effectively purified through two cooling modes, and the conditions of incomplete waste gas treatment and atmosphere pollution are avoided.

Description

NMP waste gas recovery device

Technical Field

The utility model belongs to the technical field of NMP waste gas recovery, and particularly relates to an NMP waste gas recovery device.

Background

NMP is an important chemical raw material, is a polar solvent with strong selectivity and good stability, is also a solvent commonly used in the lithium battery production process, is used as a solvent when manufacturing positive and negative electrode materials of a lithium battery and manufacturing a lithium battery diaphragm, is continuously volatilized along with the production of the positive and negative electrode materials of the lithium battery and the diaphragm in the production process, can be discharged along with waste gas, has certain toxicity, can not be directly discharged to the environment, and can be discharged after being recycled.

The current NMP waste gas recovery device carries out exhaust treatment with the waste gas of retrieving and discharges after the exhaust-gas treatment in the course of the work, but current processing apparatus condenses harmful substance in the NMP waste gas through condensing equipment, collects in order to reach the purpose of purifying NMP waste gas then, but current purifier reduces but can not reach emission standard in the harmful substance in the NMP waste gas after purifying the completion, consequently is inconvenient for guaranteeing the effective evolution of NMP waste gas.

Disclosure of utility model

(One) solving the technical problems

In order to solve the problems in the prior art, the utility model provides the NMP waste gas recovery device, which has the advantages of effectively ensuring NMP waste gas purification, avoiding incomplete waste gas treatment and atmosphere pollution, effectively collecting waste liquid purified by NMP waste gas, and avoiding the condition that the waste gas volatilizes to pollute the air due to contact with the external air.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a NMP waste gas recovery device, includes the purifying box subassembly, one side fixedly connected with cooling module of purifying box subassembly, the opposite side fixedly connected with condensation subassembly of purifying box subassembly, the positive fixedly connected with collection subassembly of purifying box subassembly.

Preferably, the purifying box assembly comprises a purifying box main body, a first partition plate is fixedly connected to the center of the inside of the purifying box main body, a sloping plate is fixedly connected to the bottom of the inside of the purifying box main body, an air inlet is fixedly connected to one side of the top of the purifying box main body, an air outlet is fixedly connected to the other side of the top of the purifying box main body, and three liquid draining ports are formed in the positive bottom of the purifying box main body.

Preferably, the condensing unit includes first liquid reserve tank, one side fixedly connected with refrigerator of first liquid reserve tank, the refrigerator is kept away from one side fixedly connected with transfer line of first liquid reserve tank, the transfer line is kept away from one side fixedly connected with inlet of refrigerator, the outside of inlet has fixedly connected with first buffer tank in a sleeved mode, the inside fixedly connected with baffle of first buffer tank, first connecting hole has been seted up to one side of refrigerator is kept away from to first buffer tank, the inboard fixedly connected with first ring canal of refrigerator connecting hole, first ring canal is kept away from one side fixedly connected with second buffer tank of first buffer tank, one side fixedly connected with of second buffer tank, with first liquid reserve tank fixedly connected with.

Preferably, the cooling assembly comprises a water inlet, a third buffer tank is fixedly sleeved on the outer side of the bottom of the water inlet, a second partition plate is fixedly connected to the inner side of the third buffer tank, a second connecting hole is formed in one side of the third buffer tank, a second annular plate is fixedly connected to the inner side of the third buffer tank connecting hole, a fourth buffer tank is fixedly connected to one side of the second annular plate away from the third buffer tank, and a water outlet is fixedly connected to one side of the fourth buffer tank.

Preferably, the collecting assembly comprises a collecting box, a first pipeline is fixedly connected to the top of the collecting box, a water pump is fixedly arranged on one side, close to the collecting box, of the first pipeline, and a second pipeline is fixedly connected to one side, away from the collecting box, of the first pipeline.

Preferably, the size of the liquid outlet is mutually matched with the size of the second pipeline, and the bottom of the first baffle plate is positioned at the top of the inclined plate.

Preferably, the second annular plate is positioned at one side of the interior of the purifying box assembly, the first annular pipe is positioned at the other side of the interior of the purifying box assembly, and the side surface of the collecting assembly is fixedly connected with the side surface of the purifying box assembly through the second pipeline

(III) beneficial effects

Compared with the prior art, the utility model has the following beneficial effects:

According to the utility model, NMP waste gas to be treated is injected into the inner side of the purification box main body through the air inlet, meanwhile, clear water is injected through the water inlet and then flows into the third buffer box through the holes at the top of the second partition plate, harmful substances in the NMP waste gas are condensed and adsorbed on the outer side of the second ring plate through the inner side of the purification box main body, NMP waste gas after preliminary condensation enters the other side of the purification box main body through the bottom of the first partition plate, meanwhile, the refrigerating machine extracts condensate in the first liquid storage box and cools the condensate through the refrigerating machine, the condensate is conveyed to the liquid inlet through the infusion tube and then is injected into the first buffer box, then the condensate is uniformly distributed in the first buffer box through the partition plate and then is conveyed into the second buffer box through the first ring pipe, and further condensed by NMP waste gas passing through the other side of the purification box main body is adsorbed on the outer wall of the first ring pipe, and further purification of the waste gas can be effectively ensured through two cooling modes, and the condition that the waste gas is incompletely polluted by NMP waste gas is effectively prevented.

According to the utility model, under the condition of long-time adsorption of the first annular pipe and the second annular plate, harmful substances in NMP waste gas fall down to the top of the bottom inclined plate of the purifying box main body, then are conveyed into the second pipeline through the liquid discharge port, and then waste liquid in the second pipeline is pumped by the water pump and is injected into the collecting box for collection, so that the waste liquid purified by NMP waste gas can be effectively collected, and the condition that the waste gas volatilizes to pollute the air due to contact with external air is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the purifying box assembly of the present utility model;

FIG. 3 is a schematic view of a condensing unit according to the present utility model;

FIG. 4 is a schematic view of a cooling module according to the present utility model;

FIG. 5 is a schematic view of the structure of the collecting assembly of the present utility model;

fig. 6 is a schematic structural diagram of a second embodiment of the present utility model.

In the figure: 1. a purge bin assembly; 101. a purifying box main body; 102. a first separator; 103. a sloping plate; 104. an air outlet; 105. an air inlet; 106. a liquid outlet; 2. a condensing assembly; 201. a first reservoir; 202. a refrigerating machine; 203. an infusion tube; 204. a liquid inlet; 205. a partition plate; 206. a first buffer tank; 207. a first collar; 208. a second buffer tank; 3. a cooling assembly; 301. a water inlet; 302. a third buffer tank; 303. a second separator; 304. a second annular plate; 305. a fourth buffer tank; 306. a water outlet; 4. a collection assembly; 401. a collection box; 402. a water pump; 403. a first pipe; 404. a second pipe; 5. a conical bowl opening.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1, the utility model provides an NMP waste gas recovery device, which comprises a purifying box assembly 1, wherein one side of the purifying box assembly 1 is fixedly connected with a cooling assembly 3, the other side of the purifying box assembly 1 is fixedly connected with a condensing assembly 2, and the front surface of the purifying box assembly 1 is fixedly connected with a collecting assembly 4.

As shown in fig. 2, the purifying box assembly 1 includes a purifying box main body 101, a first partition plate 102 is fixedly connected to the center of the inside of the purifying box main body 101, a sloping plate 103 is fixedly connected to the bottom of the inside of the purifying box main body 101, an air inlet 105 is fixedly connected to one side of the top of the purifying box main body 101, an air outlet 104 is fixedly connected to the other side of the top of the purifying box main body 101, and three liquid discharge ports 106 are provided at the front bottom of the purifying box main body 101.

The scheme is adopted: the harmful substances in the NMP waste gas fall down to the top of the bottom sloping plate 103 of the purifying box main body 101, and then are conveyed into the collecting assembly 4 through the liquid outlet 106 for collection.

As shown in fig. 3, the condensing assembly 2 includes a first liquid storage tank 201, a refrigerator 202 is fixedly connected to one side of the first liquid storage tank 201, a liquid delivery pipe 203 is fixedly connected to one side of the refrigerator 202 away from the first liquid storage tank 201, a liquid inlet 204 is fixedly connected to one side of the liquid delivery pipe 203 away from the refrigerator 202, a first buffer tank 206 is fixedly sleeved on the outer side of the liquid inlet 204, a partition 205 is fixedly connected to the inner side of the first buffer tank 206, a first connecting hole is formed in one side of the first buffer tank 206 away from the refrigerator 202, a first loop pipe 207 is fixedly connected to the inner side of the connecting hole of the refrigerator 202, a second buffer tank 208 is fixedly connected to one side of the first loop pipe 207 away from the first buffer tank 206, and one sides of the second buffer tanks 208 are fixedly connected with 209 and 209 are fixedly connected with the first liquid storage tank 201.

The scheme is adopted: the refrigerator 202 extracts condensate in the first liquid storage tank 201, cools the condensate through the refrigerator 202, conveys the condensate to the liquid inlet 204 through the infusion tube 203, then injects the condensate into the first buffer tank 206, then evenly distributes the condensate in the first buffer tank 206 through the partition 205, then conveys the condensate into the second buffer tank 208 through the first annular pipe 207, and conveys the condensate into the first liquid storage tank 201 through 209, further condenses NMP waste gas passing through the other side in the inside of the purifying tank main body 101, and is adsorbed on the outer wall of the first annular pipe 207.

As shown in fig. 4, the cooling assembly 3 includes a water inlet 301, a third buffer box 302 is fixedly sleeved on the outer side of the bottom of the water inlet 301, a second partition 303 is fixedly connected to the inner side of the third buffer box 302, a second connection hole is formed in one side of the third buffer box 302, a second annular plate 304 is fixedly connected to the inner side of the connection hole of the third buffer box 302, a fourth buffer box 305 is fixedly connected to one side, away from the third buffer box 302, of the second annular plate 304, and a water outlet 306 is fixedly connected to one side of the fourth buffer box 305.

The scheme is adopted: injecting clean water through the water inlet 301 and then allowing water to flow into the third buffer tank 302 through the holes at the top of the second partition plate 303, and then allowing harmful substances in the NMP waste gas to condense and adsorb on the outer side of the second ring plate 304 by entering the inner side of the purification tank main body 101 through the second ring plate 304, wherein the NMP waste gas enters the other side of the purification tank main body 101 through the bottom of the first partition plate 102 after preliminary condensation.

As shown in fig. 5, the collecting assembly 4 includes a collecting box 401, a first pipe 403 is fixedly connected to the top of the collecting box 401, a water pump 402 is fixedly installed on one side of the first pipe 403 close to the collecting box 401, and a second pipe 404 is fixedly connected to one side of the first pipe 403 far from the collecting box 401.

The scheme is adopted: harmful substances in NMP waste gas are conveyed to the second pipeline 404 through the liquid outlet 106 for relay, waste liquid in the second pipeline 404 is pumped by the water pump 402 and is injected into the collecting tank 401 for collection, waste liquid purified by NMP waste gas can be effectively collected, and the condition that the waste gas volatilizes and pollutes air due to contact with external air is avoided

As shown in fig. 1 and 5, the size of the liquid drain port 106 is matched with the size of the second pipe 404, and the bottom of the first partition 102 is located at the top of the sloping plate 103.

The scheme is adopted: ensures that harmful substances in NMP waste gas can be normally transported to the second pipeline 404 through the liquid outlet 106 after falling to the top of the bottom inclined plate 103 of the purifying box main body 101, and then collected in the collecting box 401; the first partition 102 partitions the chambers in which the condensing unit 2 and the cooling unit 3 are located.

As shown in fig. 1, 2, 3 and 4, the second ring plate 304 is located at one side of the inside of the purge bin assembly 1, the first ring pipe 207 is located at the other side of the inside of the purge bin assembly 1, and the side surface of the collecting assembly 4 is fixedly connected with the side surface of the purge bin assembly 1 through the second pipe 404.

The scheme is adopted: NMP waste gas to be treated is injected into the inside of the purification tank main body 101 through the air inlet 105, harmful substances in the NMP waste gas are condensed and adsorbed on the outside of the second annular plate 304, NMP waste gas passing through the other side inside the purification tank main body 101 is further condensed, and adsorbed on the outer wall of the first annular pipe 207, so that the pollution of discharged waste gas is reduced.

Example two

As shown in fig. 6, the conical bowl openings 5 are additionally arranged at the top of the air inlet 105 and the air outlet 104, so that the air inlet and air outlet efficiency of the equipment is improved, and the effective purification of the equipment on the waste gas is ensured.

The working principle and the using flow of the utility model are as follows:

NMP waste gas to be treated is injected into the inner side of the purifying box main body 101 through the air inlet 105, clean water is injected through the water inlet 301, water is enabled to flow into the inner side of the third buffer box 302 through holes in the top of the second partition 303, harmful substances in the NMP waste gas are enabled to be condensed and adsorbed on the outer side of the second annular plate 304 through the inner side of the second annular plate 304, after preliminary condensation, the NMP waste gas enters the other side of the purifying box main body 101 through the bottom of the first partition 102, simultaneously, the refrigerator 202 extracts condensate in the first liquid storage box 201 and cools the condensate through the refrigerator 202, the condensate is conveyed to the liquid inlet 204 through the infusion tube 203 and then is injected into the inner side of the first buffer box 206, then the condensate is evenly distributed in the inner side of the first buffer box 206 through the partition 205 and then is conveyed into the second buffer box 208 through the first annular pipe 207, and is conveyed into the first liquid storage box 201 through 209, NMP waste gas passing through the other side of the inner side of the purifying box main body 101 is further condensed and adsorbed on the outer wall of the first annular pipe 207, the NMP waste gas in the condition that the NMP waste gas in the first annular plate 207 and the second annular plate 102 is adsorbed in the long time falls down to the bottom of the second buffer box 101 through the second buffer box 206, and then the waste liquid is pumped into the bottom of the second buffer box 206 through the second buffer box 206 and then flows into the water inlet 404 through the second buffer box 101, and is pumped into the drain pipe 404, and then is pumped into the drain tank is purified through the drain pipe 404.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. NMP waste gas recovery unit, including purifying box subassembly (1), its characterized in that: one side fixedly connected with cooling module (3) of purifying box subassembly (1), the opposite side fixedly connected with condensation subassembly (2) of purifying box subassembly (1), positive fixedly connected with collection subassembly (4) of purifying box subassembly (1), purifying box subassembly (1) are including purifying box main part (101), the inside center fixedly connected with first baffle (102) of purifying box main part (101), the inside bottom fixedly connected with swash plate (103) of purifying box main part (101), one side fixedly connected with air inlet (105) at purifying box main part (101) top, opposite side fixedly connected with gas outlet (104) at purifying box main part (101) top, three leakage fluid dram (106) have been seted up to the positive bottom of purifying box main part (101), the bottom of first baffle (102) is located the top of swash plate (103).

2. The NMP off-gas recovery unit according to claim 1, characterized in that: the condensing unit (2) comprises a first liquid storage tank (201), one side fixedly connected with refrigerator (202) of first liquid storage tank (201), refrigerator (202) are kept away from one side fixedly connected with transfer line (203) of first liquid storage tank (201), one side fixedly connected with inlet (204) of refrigerator (202) is kept away from to transfer line (203), first buffer tank (206) has been fixedly cup jointed in the outside of inlet (204), the inside fixedly connected with baffle (205) of first buffer tank (206), first connecting hole has been seted up to one side of refrigerator (202) is kept away from to first buffer tank (206), the inboard fixedly connected with first ring canal (207) of refrigerator (202) connecting hole, one side fixedly connected with second buffer tank (208) of first ring canal (207) is kept away from one side fixedly connected with (209) of second buffer tank (208), one side fixedly connected with (209) of liquid storage tank (201) with first buffer tank (201) is located inside purification unit (1).

3. The NMP off-gas recovery unit according to claim 2, characterized in that: the cooling assembly (3) comprises a water inlet (301), a third buffer box (302) is fixedly sleeved on the outer side of the bottom of the water inlet (301), a second partition plate (303) is fixedly connected to the inner side of the third buffer box (302), a second connecting hole is formed in one side of the third buffer box (302), a second annular plate (304) is fixedly connected to the inner side of the connecting hole of the third buffer box (302), a fourth buffer box (305) is fixedly connected to one side of the second annular plate (304) away from the third buffer box (302), a water outlet (306) is fixedly connected to one side of the fourth buffer box (305), and the second annular plate (304) is located one side of the inner portion of the purifying box assembly (1).

4. A NMP off-gas recovery unit according to claim 3, characterized in that: the collecting assembly (4) comprises a collecting box (401), a first pipeline (403) is fixedly connected to the top of the collecting box (401), a water pump (402) is fixedly arranged on one side, close to the collecting box (401), of the first pipeline (403), a second pipeline (404) is fixedly connected to one side, far away from the collecting box (401), of the first pipeline (403), the size of the liquid outlet (106) is mutually matched with the size of the second pipeline (404), and the side of the collecting assembly (4) is fixedly connected with the side of the purifying box assembly (1) through the second pipeline (404).