CN114367123A

CN114367123A - NMP steam condensate recovery system for lithium battery production

Info

Publication number: CN114367123A
Application number: CN202111607691.8A
Authority: CN
Inventors: 宋超
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-19

Abstract

The invention discloses a NMP steam condensate recovery system for lithium battery production, which comprises a shell placed above a horizontal ground, wherein a first partition plate and a second partition plate are arranged on the inner side of the shell, and the first partition plate and the second partition plate divide the interior of the shell into a steam inlet layer, a collection layer and a condensation layer from bottom to top in sequence; further comprising: the first gear is connected to the inner side of the first partition plate in a shaft connection mode, the outer side of the first gear is connected with a second gear in a meshing mode, and a cam is fixed to the outer side of the shaft end of the second gear; and the movable plate is connected with the outer wall of the heat exchange tube through a shaft. This NMP steam condensate recovery system is used in lithium cell production, it can utilize steam drive condenser pipe to carry out multidirectional vibrations to effectively improve the condensation effect of steam, can carry out recycle to the heat in the steam simultaneously, realize the secondary heating to the condensate, the subsequent secondary rectification of being convenient for, the practicality is strong.

Description

NMP steam condensate recovery system for lithium battery production

Technical Field

The invention relates to the technical field of lithium battery processing, in particular to a system for recovering NMP steam condensate for lithium battery production.

Background

The coating machine is indispensable important equipment in the lithium cell production process, in the coating machine use, can produce a large amount of NMP steam, in order to avoid environmental pollution and reduction in production cost, needs to use NMP steam condensate recovery unit to carry out the condensation recovery to NMP steam, but present NMP steam condensate recovery unit for lithium cell production still has some inadequacies.

For example, the device with the publication number of CN212854693U for recovering the NMP steam condensate in the production of the lithium battery, it can enlarge the area of the operation of cooling the condensate, improve the efficiency of the operation of cooling the condensate, facilitate the drainage of the condensate, improve the speed of collecting the condensate, meanwhile, the cooling working area can be increased, the cooling efficiency of the device is improved, the use efficiency is improved, the device is safe and reliable … …, after residual gas is filtered completely through the action of the active carbon filter layer and the purification discharge port, the heat in the NMP steam is inconvenient to recycle in the using process, therefore, the pressure of heat exchange in the subsequent condensation process is increased, and meanwhile, the condensation system has a single structure and limited condensation time and effect of steam, so that the recovery efficiency of NMP steam condensate is reduced, and certain use defects exist.

Therefore, a system for recovering the NMP steam condensate for lithium battery production is provided so as to solve the problems mentioned above.

Disclosure of Invention

The invention aims to provide a system for recovering NMP steam condensate for lithium battery production, which aims to solve the problems that the prior NMP steam condensate recovery device for lithium battery production in the market proposed by the background technology is inconvenient for recovering and utilizing heat in NMP steam, so that the pressure of heat exchange in the subsequent condensation process is increased, and meanwhile, the condensation system has a single structure, and the condensation time and effect of the steam are limited, so that the efficiency of recovering the NMP steam condensate is reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a NMP steam condensate recovery system for lithium battery production comprises a shell placed above a horizontal ground, wherein a first partition plate and a second partition plate are arranged on the inner side of the shell, and the interior of the shell is sequentially divided into a steam inlet layer, a collection layer and a condensation layer from bottom to top by the first partition plate and the second partition plate;

further comprising:

the heat exchange tube is fixedly arranged in the middle of the first partition plate and the second partition plate, a steam collecting plate is arranged on the inner side of the heat exchange tube, and an impeller is connected to the inner side of the heat exchange tube through a shaft;

the first magnetic seat is fixedly arranged on the upper surface of the first partition plate, a second magnetic seat is arranged above the first partition plate, a condensing pipe is fixedly connected to the inner side of the second magnetic seat, a steam conveying hose is connected between the condensing pipe and the heat exchange pipe, and a liquid dropping hose is connected to the lower end of the condensing pipe;

the first gear is connected to the inner side of the first partition plate in a shaft connection mode, the outer side of the first gear is connected with a second gear in a meshing mode, and a cam is fixed to the outer side of the shaft end of the second gear;

the movable plate is connected to the outer wall of the heat exchange tube through a shaft;

the refrigerator and the rectifier are fixedly arranged on two sides of the shell, a circulating liquid pipe is connected between the refrigerator and the condensation layer and used for circularly conveying cooling liquid, the rectifier is communicated with the collection layer, and a steam pipe is connected between the rectifier and the condensation layer, so that the recycling of water vapor in air is realized.

Preferably, the steam collecting plate and the heat exchange tube are arranged in an integrated structure, the steam collecting plate is arranged in a funnel-shaped structure, and the aperture of one end, facing the impeller, of the steam collecting plate is smaller than the inner diameter of the heat exchange tube.

Through adopting above-mentioned technical scheme for the vapour board can be collected, assemble steam, thereby makes steam can blow to the impeller through the vapour board fast, and then drives the impeller and carry out the autogiration.

Preferably, the two condensation pipes are symmetrically arranged around the heat exchange pipe, are arranged in a spiral structure, and are communicated with the steam hose.

Through adopting above-mentioned technical scheme for two steam transmission hoses can shunt the steam in the steam transmission hose, thereby slow down the flow velocity of steam in the condenser pipe, make heat transfer, the condensation that the steam of condenser pipe inside can be abundant.

Preferably, the shaft end of the first gear is connected with the shaft end of the impeller through a pulley, and three second gears are arranged on the outer side of the first gear at equal angles around the central axis of the first gear.

Through adopting above-mentioned technical scheme for the impeller can drive first gear and carry out synchronous revolution under the steam drive effect, and then makes first gear drive three second gear through the meshing effect and carry out synchronous revolution.

Preferably, the cams are distributed at equal angles in the circumferential direction with respect to the central axis of the second magnetic seat, the initial rotation angles of the cams are different, and the cams correspond to the side wall of the upper end of the second magnetic seat in position.

Through adopting above-mentioned technical scheme for can drive each cam and promote the upper end of second magnetic support in proper order when first gear is rotatory, thereby realize the regulation to second magnetic support position.

Preferably, the magnetic poles of the first magnetic seat and the second magnetic seat are the same, and the upper end position of the first magnetic seat is lower than the upper end position of the second magnetic seat.

Through adopting above-mentioned technical scheme, make the second magnetic support under the promotion of cam, can utilize its and the first magnetic support between magnetic force carry out the elasticity vibrations, thereby drive the condenser pipe and shake in step, make the drop of water vibration formation water smoke of condenser pipe inner wall condensation float in the condenser pipe, thereby further promoted the condensation of intraductal steam of geminate transistors, the vibrations liquid of condenser pipe has realized the vortex of intraductal steam flow of geminate transistors and the disturbance of coolant liquid in the condensate layer simultaneously, the temperature that steam flowed time in the intraductal and has promoted the coolant liquid is balanced, and then promote steam condensation efficiency.

Preferably, the dropping liquid hose runs through in first baffle, just be connected with the haulage rope between the lower extreme of dropping liquid hose and the axle head of fly leaf, and be connected with torque spring between the axle head of fly leaf and the outer wall of heat exchange tube.

Through adopting above-mentioned technical scheme for can drive the dropping liquid hose and remove when the condenser pipe shakes, make the dropping liquid hose pass through the haulage rope and can stimulate the fly leaf and carry out reciprocating swing, thereby realize the stirring to steam condensate in the collection layer, make the steam condensate of each part in the collection layer can the temperature equilibrium, make the steam condensate can carry out abundant heat transfer with former steam.

Preferably, the movable plate is arranged in a circular arc structure and attached to the side wall of the heat exchange tube.

Through adopting above-mentioned technical scheme for when the fly leaf was laminated in the lateral wall of heat exchange tube, can carry out abundant heat transfer with the inside steam of heat exchange tube, and when the fly leaf rotated, can carry out abundant contact with the steam condensate, thereby in leading-in condensate of heat again, and realize the recycle to steam used heat, and then reduce the required heat energy of follow-up rectification.

Preferably, the inner wall of the heat exchange tube is symmetrically provided with two groups of elastic sheets, the elastic sheets and the inner wall of the heat exchange tube are arranged in an integrated structure, the elastic sheets and the outer wall of the movable plate are respectively embedded with a magnetic block, and the magnetic poles of the two groups of elastic sheets are the same.

Through adopting above-mentioned technical scheme for evenly distributed's flexure strip can increase the heat exchange efficiency of heat exchange tube and steam, and when the rotatory expansion of fly leaf, the flexure strip can lose magnetic force and then take place elastic deformation, makes it can strike the inner wall of heat exchange tube, makes the heat exchange tube send the vibration, thereby shakes the bubble on the liquid surface of condensing in the collection layer and breaks, thereby improves follow-up rectification effect.

Compared with the prior art, the invention has the beneficial effects that: according to the NMP steam condensate recovery system for lithium battery production, steam can be used for driving the condensing pipe to vibrate in multiple directions, so that the condensing effect of the steam is effectively improved, meanwhile, heat in the steam can be recycled, secondary heating of condensate is realized, the subsequent secondary rectification is facilitated, the practicability is high, and the specific content is as follows;

1. the steam collecting plate can collect steam when the steam is introduced into the heat exchange tube, so that the steam is quickly blown to the impeller, the impeller drives the first gear and the second gear to be meshed, the plurality of cams are driven to synchronously rotate, a driving device is not needed to be used independently, and energy loss when the device is used is reduced;

2. the condenser pipe can suspend in a condensation layer under the magnetic force action of the first magnetic seat and the second magnetic seat, the condenser pipe can vibrate along with the push of the cam subsequently, water drops condensed on the inner wall of the condenser pipe can vibrate to form water mist, meanwhile, steam in the pipe can flow in a turbulent manner, and then steam condensation is promoted, and meanwhile, the condenser pipe can stir cooling liquid in the condensation layer, so that the heat dissipation of the cooling liquid is promoted, and the condensation effect of the device is further improved;

3. be provided with heat exchange tube and fly leaf, the heat exchange tube can advance high-efficient heat transfer to the steam that its inboard was carried to carry out the heat transfer once more through fly leaf and steam condensate, realize the reutilization of steam used heat, the steam condensate after being convenient for preheat carries out secondary rectification, purification, can carry out recycle make up the coolant liquid with the steam that secondary rectification in-process produced simultaneously, realizes the high-efficient recycle to the resource, has improved the energy-concerving and environment-protective nature of device.

Drawings

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

FIG. 2 is a schematic main sectional view of a first separator according to the present invention;

FIG. 3 is a schematic top view of the impeller of the present invention;

FIG. 4 is a schematic perspective view of a first magnetic base and a second magnetic base according to the present invention;

FIG. 5 is a schematic top cross-sectional view of a collection layer according to the present invention;

FIG. 6 is a perspective view of the heat exchange tube and the movable plate of the present invention;

FIG. 7 is a schematic view of a torsion spring mounting structure according to the present invention;

FIG. 8 is a schematic view of the main cross-sectional structure of the heat exchange tube of the present invention.

In the figure: 1. a housing; 2. a first separator; 3. a second separator; 4. a vapor inlet layer; 5. a collection layer; 6. a condensation layer; 7. a heat exchange pipe; 8. a steam collecting plate; 9. an impeller; 10. a first magnetic base; 11. a second magnetic base; 12. a condenser tube; 13. a gas hose; 14. a drip hose; 15. a first gear; 16. a belt pulley; 17. a second gear; 18. a cam; 19. a movable plate; 20. a torsion spring; 21. a hauling rope; 22. an elastic sheet; 23. a magnetic block; 24. a refrigerator; 25. a circulating liquid pipe; 26. a rectifier; 27. and (7) a steam pipe.

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. 1-8, the present invention provides a technical solution: a NMP steam condensate recovery system for lithium battery production comprises a shell 1 placed above a horizontal ground, wherein a first partition plate 2 and a second partition plate 3 are arranged on the inner side of the shell 1, and the first partition plate 2 and the second partition plate 3 divide the interior of the shell 1 into a steam inlet layer 4, a collection layer 5 and a condensation layer 6 from bottom to top in sequence;

further comprising: the heat exchange tube 7 is fixedly arranged in the middle of the first partition plate 2 and the second partition plate 3, a steam collecting plate 8 is arranged on the inner side of the heat exchange tube 7, and an impeller 9 is connected to the inner side shaft of the heat exchange tube 7; the first magnetic seat 10 is fixedly arranged on the upper surface of the first partition plate 2, a second magnetic seat 11 is arranged above the first partition plate 2, a condensing pipe 12 is fixedly connected to the inner side of the second magnetic seat 11, a steam conveying hose 13 is connected between the condensing pipe 12 and the heat exchange pipe 7, and a liquid dropping hose 14 is connected to the lower end of the condensing pipe 12; first gear 15, the axle is connected in the inboard of first baffle 2, and the outside meshing of first gear 15 is connected with second gear 17, and the axle head outside of second gear 17 is fixed with cam 18, and vapour board 8 and heat exchange tube 7 structure as an organic whole set up, and vapour board 8 is the structure setting of leaking hopper-shaped to the aperture of vapour board 8 towards the one end of impeller 9 is less than the internal diameter of heat exchange tube 7. The two condensation pipes 12 are symmetrically arranged about the heat exchange pipe 7, the condensation pipes 12 are arranged in a spiral structure, and the two condensation pipes 12 are communicated with the steam hose 13. The shaft end of the first gear 15 is connected with the shaft end of the impeller 9 through a pulley 16, and three second gears 17 are arranged on the outer side of the first gear 15 at equal angles around the central axis thereof. The cams 18 are distributed at equal angles in the circumferential direction with respect to the central axis of the second magnetic seat 11, the initial rotation angles of the cams 18 are different, and the cams 18 correspond to the upper end side wall of the second magnetic seat 11. The magnetic poles of the first magnetic base 10 and the second magnetic base 11 are the same, and the upper end position of the first magnetic base 10 is lower than the upper end position of the second magnetic base 11, as shown in fig. 1-4, NMP steam with treatment is introduced into the steam inlet layer 4, so that the steam enters the heat exchange tube 7, at this time, the steam collecting plate 8 can collect the steam, so that the steam can blow the impeller 9 to synchronously rotate, at this time, the impeller 9 can drive the first gear 15 to rotate through the transmission action of the belt pulley 16, the first gear 15 can drive the second gear 17 and the cam 18 to synchronously rotate through the meshing action, so that the cam 18 can multi-directionally push the second magnetic base 11, at this time, the second magnetic base 11 can drive the condensation tube 12 to vibrate under the action of magnetic force, so that condensed water droplets on the inner wall of the condensation tube 12 generate water mist due to vibration, thereby effectively improving the heat exchange efficiency of the steam in the tube, realize the efficient condensation, the condenser pipe 12 shakes the water that the in-process can stir in the condensation layer 6 simultaneously, and then further improves the heat exchange efficiency of condenser pipe 12 and coolant liquid.

A movable plate 19 which is connected with the outer wall of the heat exchange tube 7 through a shaft; the liquid dropping hose 14 penetrates through the first partition plate 2, a traction rope 21 is connected between the lower end of the liquid dropping hose 14 and the shaft end of the movable plate 19, a torsion spring 20 is connected between the shaft end of the movable plate 19 and the outer wall of the heat exchange tube 7, the movable plate 19 is arranged in an arc-shaped structure, and the movable plate 19 is attached to the side wall of the heat exchange tube 7. Two groups of elastic sheets 22 are symmetrically arranged on the inner wall of the heat exchange tube 7, the elastic sheets 22 and the inner wall of the heat exchange tube 7 are arranged in an integrated structure, magnetic blocks 23 are embedded in the elastic sheets 22 and the outer wall of the movable plate 19, and the magnetic poles of the two groups of elastic sheets 22 are the same, as shown in fig. 1 and fig. 6-8, the heat exchange tube 7 can efficiently exchange heat with steam inside the heat exchange tube 7 and conduct heat to the movable plate 19, when the condenser tube 12 vibrates, the condenser tube can drive the liquid dropping hose 14 connected with the lower end to move, so that the liquid dropping hose 14 can pull the movable plate 19 to rotate by using the traction rope 21, the movable plate 19 can swing, thereby realizing sufficient heat exchange with steam condensate, realizing preheating of the steam condensate, and the elastic sheets 22 can reset and knock the inner wall of the heat exchange tube 7 under the loss of magnetic force, thereby enabling the steam condensate to vibrate to remove bubbles on the surface of the steam condensate, facilitating the subsequent purification.

Refrigerator 24 and rectifier 26, fixed mounting is in the both sides of casing 1, be connected with circulating liquid pipe 25 between refrigerator 24 and the condensation layer 6, be used for the endless transport coolant liquid, and be linked together between rectifier 26 and the collection layer 5, and be connected with steam pipe 27 between rectifier 26 and the condensation layer 6, thereby realize the recycle of vapor in the air, as shown in fig. 1 and 5, the steam condensate after preheating can flow into rectifier 26 and carry out the secondary rectification, make the mixed water in the NMP condensate take place the evaporation, thereby realize the purification to NMP, the vapor that evaporates simultaneously can pass through steam pipe 27 and get into condensation layer 6, thereby realize the recycle to vapor, and refrigerator 24 can carry out the refrigeration processing through circulating liquid pipe 25 to the coolant liquid in condensation layer 6, be convenient for the device to carry out the continuous condensation operation.

The working principle is as follows: when using this NMP steam condensate recovery system for lithium cell production, firstly, as shown in fig. 1-8, let in pending NMP steam into steam inlet layer 4, make steam condense in getting into condenser pipe 12 through heat exchange tube 7, impeller 9 can drive a plurality of cams 18 under the steam drive effect simultaneously and carry out autogiration, make cam 18 promote condenser pipe 12 and carry out multidirectional vibrations, thereby effectively promote the condensation effect of condenser pipe 12 inside steam, and heat exchange tube 7 can carry out recycle to the heat of steam, and preheat the steam condensate of condensation, thereby be convenient for subsequent secondary rectification, purification, can recycle the make-up coolant liquid to the vapor after the distillation simultaneously, thereby accomplish a series of work.

Those not described in detail in this specification are prior art well known to those skilled in the art, and in the description of the present invention, "plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The NMP steam condensate recovery system for the production of the lithium battery comprises a shell (1) placed above a horizontal ground, wherein a first partition plate (2) and a second partition plate (3) are arranged on the inner side of the shell (1), and the first partition plate (2) and the second partition plate (3) divide the interior of the shell (1) into a steam inlet layer (4), a collection layer (5) and a condensation layer (6) from bottom to top in sequence;

it is characterized by also comprising:

the heat exchange tube (7) is fixedly arranged in the middle of the first partition plate (2) and the second partition plate (3), a steam collecting plate (8) is arranged on the inner side of the heat exchange tube (7), and an impeller (9) is connected to the inner side of the heat exchange tube (7) in a shaft connection mode;

the first magnetic seat (10) is fixedly arranged on the upper surface of the first partition plate (2), a second magnetic seat (11) is arranged above the first partition plate (2), a condensing pipe (12) is fixedly connected to the inner side of the second magnetic seat (11), a steam conveying hose (13) is connected between the condensing pipe (12) and the heat exchange pipe (7), and meanwhile the lower end of the condensing pipe (12) is connected with a liquid dropping hose (14);

the first gear (15) is connected with the inner side of the first partition plate (2) in a shaft mode, a second gear (17) is connected to the outer side of the first gear (15) in a meshed mode, and a cam (18) is fixed to the outer side of the shaft end of the second gear (17);

the movable plate (19) is connected with the outer wall of the heat exchange tube (7) in a shaft mode;

the refrigerator (24) and the rectifier (26) are fixedly arranged on two sides of the shell (1), a circulating liquid pipe (25) is connected between the refrigerator (24) and the condensation layer (6) and used for circularly conveying cooling liquid, the rectifier (26) is communicated with the collection layer (5), and a steam pipe (27) is connected between the rectifier (26) and the condensation layer (6), so that the water vapor in the air is recycled.

2. The system for recovering the NMP steam condensate for the production of the lithium battery according to claim 1, is characterized in that: the steam collecting plate (8) and the heat exchange tube (7) are arranged in an integrated structure, the steam collecting plate (8) is arranged in a funnel-shaped structure, and the aperture of one end, facing the impeller (9), of the steam collecting plate (8) is smaller than the inner diameter of the heat exchange tube (7).

3. The system for recovering the NMP steam condensate for the production of the lithium battery according to claim 1, is characterized in that: the condensation pipe (12) is symmetrically provided with two about the heat exchange pipe (7), the condensation pipe (12) is in a spiral structure, and the two condensation pipes (12) are communicated with the steam delivery hose (13).

4. The system for recovering the NMP steam condensate for the production of the lithium battery according to claim 1, is characterized in that: the shaft end of the first gear (15) is connected with the shaft end of the impeller (9) through a belt pulley (16), and three second gears (17) are arranged on the outer side of the first gear (15) at equal angles around the central axis of the first gear.

5. The system for recovering the NMP steam condensate for the production of the lithium battery according to claim 1, is characterized in that: the cams (18) are distributed in an equal angle mode in the circumferential direction of the central axis of the second magnetic seat (11), the initial rotating angles of the cams (18) are different, and the cams (18) correspond to the side wall of the upper end of the second magnetic seat (11).

6. The system of claim 5, wherein the system comprises: the magnetic poles of the first magnetic seat (10) and the second magnetic seat (11) are the same, and the upper end position of the first magnetic seat (10) is lower than that of the second magnetic seat (11).

7. The system for recovering the NMP steam condensate for the production of the lithium battery according to claim 1, is characterized in that: the dropping liquid hose (14) runs through in first baffle (2), just be connected with haulage rope (21) between the lower extreme of dropping liquid hose (14) and the axle head of fly leaf (19), and be connected with torsion spring (20) between the axle head of fly leaf (19) and the outer wall of heat exchange tube (7).

8. The system for recovering the NMP steam condensate for the production of the lithium battery according to claim 1, is characterized in that: the movable plate (19) is arranged in a circular arc structure, and the movable plate (19) is attached to the side wall of the heat exchange tube (7).

9. The system for recovering the NMP steam condensate for the production of the lithium battery according to claim 1, is characterized in that: the inner wall symmetry of heat exchange tube (7) is provided with two sets of flexure strips (22), just flexure strip (22) and the inner wall of heat exchange tube (7) set up for integral structure, and the outer wall of flexure strip (22) and fly leaf (19) all imbeds and installs magnetic path (23), and simultaneously two sets of the magnetic pole of flexure strip (22) is the same.