CN217220842U

CN217220842U - Waste gas recovery treatment system for containing methyl pyrrolidone (NMP)

Info

Publication number: CN217220842U
Application number: CN202220926851.9U
Authority: CN
Inventors: 李鑫
Original assignee: Hope Equipment Engineering Nanjing Co Ltd
Current assignee: Hope Equipment Engineering Nanjing Co Ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-08-19
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a waste gas recovery processing system for containing methyl pyrrolidone (NMP), including front end processing mechanism, front end processing mechanism includes the heat exchange tube, the one end and the outside exhaust emission pipe intercommunication of heat exchange tube, other end fixedly connected with front meter are cold, and front meter is cold to have a filter through the pipe connection, and the filter even has the back meter through the pipeline to be cold, and back meter is cold to be connected with zeolite adsorption mechanism through the pipeline, zeolite adsorption mechanism includes the box, and the inside of box and back meter are cold to pass through the pipeline intercommunication, and the zeolite ring is installed in the inside rotation of box, and the inside of box is equipped with actuating mechanism, drives the zeolite ring through actuating mechanism and rotates. This waste gas recovery processing system, through setting up the zeolite ring, whole recovery process does not need the participation of distilled water completely, consequently, can practice thrift the consumption to the distilled water greatly, and it is more convenient to use, dispels NMP's gas simultaneously and can directly get into the workshop, does not need dehumidification once more, has simplified the recovery process greatly, further facilitates the use.

Description

Waste gas recovery treatment system for containing methyl pyrrolidone (NMP)

Technical Field

The utility model relates to a waste gas recovery technical field specifically is a waste gas recovery processing system for containing methyl pyrrolidone (NMP).

Background

NMP is an important auxiliary material for producing lithium ion battery electrodes, is mainly used in a positive electrode coating process in a lithium battery preparation process, and waste gas generated after the NMP is used needs to be recovered by a corresponding waste gas recovery system and purified to meet the emission requirements of Volatile Organic Compounds (VOCs) required by the state before being discharged into the atmosphere.

At present, the conventional waste gas recovery processing system mainly utilizes distilled water to spray the waste gas containing the NMP, so as to dissolve the NMP in the waste gas in the spray water, and then the distilled water containing the NMP is recovered in a centralized manner, so that the NMP is recovered.

However, this system recovers NMP at a low concentration and consumes a large amount of distilled water, and the airflow from which NMP is removed cannot enter a room again, and therefore, it is necessary to perform dehumidification again.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste gas recovery processing system for containing methyl pyrrolidone (NMP) to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a waste gas recovery processing system for containing methyl pyrrolidone, includes front end processing mechanism, front end processing mechanism includes the heat exchange tube, the one end and the outside exhaust emission pipe intercommunication of heat exchange tube, the cold table of other end fixedly connected with front meter, the cold pipe connection of front meter has the filter, and the filter even has the cold table of back through the pipeline, and the cold table of back is connected with zeolite adsorption mechanism through the pipeline, zeolite adsorption mechanism includes the box, and the inside of box and the cold pipe connection of passing through of back table, the internal rotation of box install the zeolite ring, and the inside of box is equipped with actuating mechanism, drives the zeolite ring rotation through actuating mechanism.

Preferably, the driving mechanism comprises a fluted disc which is rotatably arranged on the inner bottom wall of the box body, and the zeolite ring is fixedly arranged on the surface of the fluted disc.

Preferably, the inside of box rotates and installs drive gear, and drive gear and fluted disc meshing, and fixed mounting has driven bevel gear in drive gear's the pivot, and the inside of box rotates and installs the drive bevel gear, and drive bevel gear and driven bevel gear meshing.

Preferably, a motor is fixedly installed inside the box body, and a rotating shaft of the motor is fixedly connected with a rotating shaft of the driving bevel gear.

Preferably, the surface of the box body is respectively inserted with an exhaust pipe and a high-temperature air inlet pipe, the surface of the box body is fixedly provided with a concentrated air pipe, and the concentrated air pipe is communicated with the air inlet of the heat exchange pipe.

Preferably, the heat exchange tube, the front surface cooler and the rear surface cooler are connected with a suction tube, the suction tube is communicated with an external suction pump, and the separated liquid phase NMP is pumped out through the suction tube.

Advantageous effects

The utility model provides a waste gas recovery processing system for containing methyl pyrrolidone (NMP), possess following beneficial effect:

1. this a waste gas recovery processing system for containing methyl pyrrolidone (NMP), through setting up the zeolite ring, adopt novel zeolite ring as adsorbing material, adsorb the filtration separation with NMP from stoving waste gas, adopt hot-blast regeneration again, then with NMP enrichment gas to heat exchange tube, preceding table is cold and the back table is cold, make its liquefaction separate out, retrieve liquid phase NMP, whole recovery process does not need the participation of distilled water completely, therefore, can practice thrift the consumption to the distilled water greatly, it is more convenient to use, dispel the gas of NMP simultaneously and can directly get into the workshop, do not need dehumidification once more, the recovery process has been simplified greatly, further facilitate the use.

2. This a waste gas recovery processing system for containing methyl pyrrolidone (NMP), through setting up actuating mechanism, when the motor rotated, just can drive the drive bevel gear and rotate with driven bevel gear to drive gear and rotate, drive gear just can drive the fluted disc rotation at the uniform velocity simultaneously, so, alright make the zeolite ring rotate at the uniform velocity, thereby let the zeolite ring can be even adsorb the NMP in the waste gas, the effectual stability of guaranteeing whole recovery process.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the zeolite adsorption mechanism of the present invention;

fig. 3 is the schematic diagram of the internal structure of the zeolite adsorption mechanism of the present invention.

In the figure: the device comprises a heat exchange tube 1, a front surface cooler 2, a pipeline 3, a filter 4, a rear surface cooler 5, a box 6, a 7-zeolite ring, an 8-fluted disc, a 9-drive gear, a 10-driven bevel gear, a 11-drive bevel gear, a 12-motor, a 13-exhaust pipe, a 14-high-temperature air inlet pipe, a 15-concentrated air pipe and a 16-suction pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a waste gas recovery processing system for containing methyl pyrrolidone NMP, includes front end processing mechanism, front end processing mechanism includes heat exchange tube 1, the one end and the outside exhaust emission pipe intercommunication of heat exchange tube 1, the cold 2 of table before other end fixedly connected with, the cold 2 of preceding table is connected with filter 4 through pipeline 3, filter 4 even has the cold 5 of back table through pipeline 3, the cold 5 of back table is connected with zeolite adsorption mechanism through pipeline 3, zeolite adsorption mechanism includes box 6, the inside of box 6 and the cold 5 pipeline 3 intercommunications of back table, zeolite ring 7 is installed in the inside rotation of box 6, the inside of box 6 is equipped with actuating mechanism, it rotates to drive zeolite ring 7 through actuating mechanism.

The driving mechanism comprises a fluted disc 8, the fluted disc 8 is rotatably installed on the inner bottom wall of the box body 6, the zeolite ring 7 is fixedly installed on the surface of the fluted disc 8, a driving gear 9 is installed on the internal rotation of the box body 6, the driving gear 9 is meshed with the fluted disc 8, a driven bevel gear 10 is fixedly installed on a rotating shaft of the driving gear 9, a driving bevel gear 11 is installed on the internal rotation of the box body 6, and the driving bevel gear 11 is meshed with the driven bevel gear 10.

The inside fixed mounting of box 6 has motor 12, motor 12's pivot and drive bevel gear 11's pivot fixed connection, the surface of box 6 is inserted respectively and is equipped with blast pipe 13 and high temperature intake pipe 14, the fixed surface of box 6 installs concentrated trachea 15, and concentrated trachea 15 and the air inlet intercommunication of heat exchange tube 1, preceding table cold 2 and back table cold 5 all are connected with straw 16, surely just straw 16 and outside suction pump intercommunication will appear liquid phase NMP and take out through straw 16.

When the motor 12 rotates, the driving bevel gear 11 and the driven bevel gear 10 are driven to rotate, so as to drive the driving gear 9 to rotate, and the driving gear 9 drives the fluted disc 8 to rotate synchronously, so that the zeolite ring 7 can rotate at a constant speed.

The working principle is as follows: when the system is used, after waste gas containing NMP enters the heat exchange tube 1, the waste gas can exchange heat through the heat exchange tube 1, so that the gas is cooled for the first time, a small amount of NMP is separated out and flows to the bottom of the heat exchange tube 1, then the waste gas can enter the front surface cooling tube 2 to be cooled for the second time, part of NMP can be separated out again, the NMP at the position can flow to the bottom of the front surface cooling tube 2, then the waste gas can enter the filter 4, the filter 4 contains a large amount of activated carbon, therefore, dust in the waste gas can be filtered by the filter 4, then the waste gas can enter the rear surface cooling tube 5 to be cooled for the last time, most of NMP is separated out at the moment, then the waste gas can enter the box body 6, then the NMP in the waste gas can be adsorbed and concentrated by the zeolite ring 7, at the moment, clean air in the box body 6 can flow into a production workshop again from the exhaust pipe 13, meanwhile, high-temperature air is injected into the box body 6 from the high-temperature air inlet pipe 14, so that NMP in the zeolite ring 7 is desorbed and discharged from the concentrated air pipe 15 and enters the heat exchange pipe 1 again for recycling, and then only the suction pump needs to be opened, and the separated liquid phase NMP is pumped away by the suction pump through the suction pipe 16.

Whole recovery process does not need the participation of distilled water completely, consequently, can practice thrift the consumption to distilled water greatly, and it is more convenient to use, dispels the gaseous workshop that can directly get into of NMP simultaneously, does not need dehumidification once more, has simplified recovery process greatly, further facilitates the use.

Through setting up actuating mechanism, when motor 12 pivoted, just can drive bevel gear 11 and driven bevel gear 10 and rotate to drive gear 9 and rotate, drive gear 9 just can drive fluted disc 8 simultaneously and rotate, so, alright make zeolite ring 7 rotate at the uniform velocity, thereby let zeolite ring 7 can be even adsorb the NMP in the waste gas, the effectual stability of guaranteeing whole recovery process.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An exhaust gas recovery processing system for use with methyl pyrrolidone (NMP), comprising a front end processing mechanism, wherein: front end processing mechanism includes heat exchange tube (1), the one end and the outside exhaust emission pipe intercommunication of heat exchange tube (1), the cold (2) of other end fixedly connected with front table, and the cold (2) of front table is connected with filter (4) through pipeline (3), and filter (4) even have back table cold (5) through pipeline (3), and back table cold (5) are connected with zeolite adsorption mechanism through pipeline (3), zeolite adsorption mechanism includes box (6), and the inside of box (6) and back table cold (5) are through pipeline (3) intercommunication, and zeolite ring (7) are installed in the internal rotation of box (6), and the inside of box (6) is equipped with actuating mechanism, drives zeolite ring (7) through actuating mechanism and rotates.

2. A system for recycling and treating methyl pyrrolidone (NMP) -containing waste gas according to claim 1, wherein: the driving mechanism comprises a fluted disc (8), the fluted disc (8) is rotatably installed on the inner bottom wall of the box body (6), and the zeolite ring (7) is fixedly installed on the surface of the fluted disc (8).

3. A system for recycling and treating methyl pyrrolidone (NMP) -containing waste gas according to claim 2, wherein: drive gear (9) are installed in the internal rotation of box (6), and drive gear (9) and fluted disc (8) meshing, and fixed mounting has driven bevel gear (10) in the pivot of drive gear (9), and the internal rotation of box (6) installs drive bevel gear (11), and drive bevel gear (11) and driven bevel gear (10) meshing.

4. A system according to claim 3 for the recovery and treatment of methyl pyrrolidone (NMP) -containing waste gas, wherein: a motor (12) is fixedly arranged in the box body (6), and a rotating shaft of the motor (12) is fixedly connected with a rotating shaft of the driving bevel gear (11).

5. A system for recycling and treating methyl pyrrolidone (NMP) containing waste gas according to claim 4, wherein: an exhaust pipe (13) and a high-temperature air inlet pipe (14) are respectively inserted into the surface of the box body (6), a concentrated air pipe (15) is fixedly mounted on the surface of the box body (6), and the concentrated air pipe (15) is communicated with an air inlet of the heat exchange pipe (1).

6. A system according to claim 5 for the recovery and treatment of methyl pyrrolidone (NMP) -containing waste gas, wherein: the heat exchange tube (1), the front surface cooler (2) and the rear surface cooler (5) are all connected with a suction tube (16), the suction tube (16) is communicated with an external suction pump, and the precipitated liquid phase NMP is pumped out through the suction tube (16).