CN219579881U - NMP recovery and purification device - Google Patents

Abstract

The utility model relates to the technical field of NMP recovery, and discloses an NMP recovery and purification device, which comprises an outer box body and an inner box body arranged in the outer box body, wherein a scraping mechanism and a water collecting cover are arranged at the top end of the inner part of the outer box body, a stirring mechanism is arranged in the inner box body, the scraping mechanism comprises a first motor, a power output end of the first motor penetrates through the outer box body and is fixedly connected with a rotating rod, a cleaning plate is arranged outside the rotating rod, and a scraping plate is arranged on the surface of one end of the cleaning plate; the utility model has simple structure, when purification is finished, the first motor drives the cleaning plate to rotate through the rotating rod, the scraping plate can be driven to rotate against the inner wall of the water collecting cover, condensed water vapor can be scraped off, the water vapor which is not converged into small liquid drops can be collected, meanwhile, the water vapor can be prevented from staying on the water collecting cover, and the water collecting cover can be cleaned.

Description

NMP recovery and purification device

Technical Field

The utility model relates to the technical field of NMP recovery, in particular to an NMP recovery and purification device.

Background

The lithium battery is widely applied in our life, in the process of processing the lithium battery, NMP is required to be used, NMP is an important auxiliary material for producing electrodes of the lithium battery, and the NMP is the most commonly used solvent in the front-stage batching process of the lithium battery, and because NMP is extremely easy to melt in water, more water is contained in common NMP, so that the purity of the NMP is influenced.

Through searching, in Chinese patent application No. 202121846298.X, an evaporation and purification circulating device applied to NMP recovery is disclosed, and is mainly used for evaporating moisture contained in NMP solution, so that the NMP solution is purified; the device comprises a device shell, wherein the lower end of the device shell is symmetrically provided with a supporting base, and the lower end of the supporting base is provided with a backing plate made of rubber; comprising the following steps: a motor disposed on the device housing; and the rotating shaft is connected with the output end of the motor, and the rotating shaft and the device shell form a rotating mechanism through a bearing arranged on the device shell. This be applied to evaporation purification circulating device that NMP retrieved, through the rotation of axis of rotation and puddler, realize stirring NMP solution to it is more even to make NMP solution be heated, accelerate the evaporation of water in the NMP solution, and condense vapor through the catchment cover, thereby make vapor just become the droplet, fall into in the lower extreme space of device shell, realize collecting the water after the evaporation, be convenient for follow-up cyclic utilization.

The water collecting plate in the patent can condense water vapor, but when purification is finished, the water vapor is less, so that the water vapor is difficult to be condensed into small liquid drops on the water collecting cover, and the water vapor stays on the water collecting cover, so that the water collecting cover is inconvenient to clean by people.

Disclosure of Invention

The utility model aims to provide an NMP recovery and purification device, which solves the problems that water vapor is less and is difficult to be condensed into small liquid drops on a water collecting cover due to the fact that the water vapor is condensed on the water collecting cover when purification is finished in the patent, and the water vapor stays on the water collecting cover, so that people cannot conveniently clean the water collecting cover.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a NMP retrieves purification device, includes the outer box with set up in the inside interior box of outer box, the inside top of outer box is provided with scrapes mechanism and catchment cover, the inside rabbling mechanism that is provided with of interior box, it includes first motor to scrape the mechanism, first motor power take off runs through outer box and fixedly connected with dwang, the dwang outside is provided with the cleaning plate, cleaning plate one end surface is provided with the scraper blade.

Preferably, the stirring mechanism comprises a second motor, the power output end of the second motor extends to the inside of the inner box body and is fixedly connected with a stirring rod, and a plurality of stirring paddles are fixedly arranged outside the stirring rod.

Preferably, a water collecting ring plate is fixedly arranged between the inner wall of the outer box body and the outer wall of the inner box body, a water guide groove is formed in the surface of the top end of the water collecting ring plate, and a filter screen is fixedly arranged at the top end of the water collecting ring plate.

Preferably, the two sides of the inner wall of the inner box body are fixedly provided with heat conducting plates through fixing plates, and heating wires are arranged between the heat conducting plates and the inner wall of the inner box body.

Preferably, a feeding pipe is fixedly connected to one side of the outer wall of the inner box body, and a discharging pipe is fixedly connected to one side of the bottom end of the inner box body.

Preferably, one side of the outer wall of the outer box body is fixedly connected with a condensed water outlet at the water collecting annular plate.

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

the utility model has simple structure, the water vapor is condensed through the water collecting cover, the water vapor can be converged into small liquid drops just before beginning, then the small liquid drops are dropped into the water collecting ring plate along the edge of the water collecting cover for collection, when the water vapor is difficult to be converged into the small liquid drops on the water collecting cover due to small water vapor quantity when purification is finished, at the moment, the first motor drives the cleaning plate to rotate through the rotating rod, the scraping plate can be driven to rotate against the inner wall of the water collecting cover, the condensed water vapor can be scraped, the water vapor which is not converged into the small liquid drops can be collected, meanwhile, the water vapor can be prevented from staying on the water collecting cover, and the cleaning of the water collecting cover can be realized.

Drawings

FIG. 1 is a schematic diagram showing the overall structure of an NMP recovering and purifying apparatus of the present utility model;

FIG. 2 is a schematic view showing the internal structure of the NMP recovering and purifying apparatus of the present utility model;

FIG. 3 is a schematic view showing the internal structure of the inner casing of the NMP recovering and purifying apparatus of the present utility model.

In the figure: 10-an outer box body; 20-an inner box body; 21-an electric heating wire; 22-a heat-conducting plate; 23-fixing plates; 30-a scraping mechanism; 31-a first motor; 32-rotating a rod; 33-cleaning the plate; 34-scraping plate; 40-stirring mechanism; 41-a second motor; 42-stirring rod; 43-stirring blade; 50-feeding tube; 60-discharging pipe; 70-a water collecting annular plate; 71-a water guide groove; 72-filtering the mixture by a filter screen; 80-a condensate outlet; 90-catchment hood.

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.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a purification device is retrieved to NMP, including outer box 10 and fixed mounting in the inside interior box 20 of outer box 10, be used for holding NMP solution in the interior box 20, the inside top fixed mounting of outer box 10 has scraping mechanism 30 and catchment cover 90, catchment cover 90 is arc structure, adopt stainless steel material, the inside rabbling mechanism 40 that is provided with of interior box 20, rabbling mechanism 40 is arranged in realizing stirring NMP solution in the interior box 20, make NMP solution be heated evenly, scraping mechanism 30 includes first motor 31, first motor 31 fixed mounting is in outer box 10 top, first motor 31 is used for driving dwang 32 and rotates, first motor 31 power take off end runs through outer box 10 and fixedly connected with dwang 32, the dwang 32 outside is through fixed cover fixed mounting cleaning plate 33, cleaning plate 33 is arc structure, cleaning plate 33 one end surface fixed mounting has scraper 34, scraper 34 is arc structure, can closely laminate with catchment cover 90 inner wall, and scraper 34 adopts plastic material to make, can not cause wearing and tearing to catchment cover 90 inner wall.

Further, condensation is performed on the water vapor through the water collecting cover 90, the water vapor just begins to be converged into small droplets, then drops into the water collecting ring plate 70 along the edge of the water collecting cover 90 to be collected, when the purification is finished, due to the fact that the water vapor amount is small, the condensation is difficult to be converged into small droplets on the water collecting cover 90, at the moment, the first motor 31 drives the cleaning plate 33 to rotate through the rotating rod 32, the scraping plate 34 can be driven to rotate against the inner wall of the water collecting cover 90, the condensed water vapor can be scraped, and then the water vapor which is not converged into small droplets can be collected.

In the preferred technical scheme of this embodiment, the stirring mechanism 40 includes a second motor 41, the second motor 41 is fixedly installed at the bottom end of the outer box 10, the power output end of the second motor 41 extends to the inside of the inner box 20 and is fixedly connected with a stirring rod 42, four stirring paddles 43 are fixedly installed outside the stirring rod 42, the second motor 41 works to drive the stirring rod 42 to rotate, and then the stirring paddles 43 can be driven to stir the NMP solution in the inner box 20, so that the NMP solution is heated uniformly.

In the preferred technical scheme of this embodiment, fixed mounting has catchment ring board 70 between outer box 10 inner wall and the inner box 20 outer wall, catchment ring board 70 can collect the water droplet that drops from catchment cover 90, catchment ring board 70 top surface has seted up guiding gutter 71, catchment ring board 70 top still fixed mounting has filter screen 72, filter screen 72 can intercept the impurity in the water droplet that drops, guaranteed the cleanliness of the comdenstion water of collecting, outer box 10 outer wall one side is located catchment ring board 70 department fixedly connected with comdenstion water export 80, the condensed water in the guiding gutter 71 can follow comdenstion water export 80 and discharge.

In the preferred technical scheme of this embodiment, the heat-conducting plate 22 is fixedly installed on two sides of the inner wall of the inner box 20 through the fixing plate 23, the heat-conducting plate 22 is made of aluminum, the electric heating wire 21 is fixedly installed between the heat-conducting plate 22 and the inner wall of the inner box 20, two ends of the electric heating wire 21 are fixedly connected with the fixing plate 23, heat generated by the electric heating wire 21 is transmitted to the heat-conducting plate 22, heat conduction is realized through the heat-conducting plate 22, and at the moment, NMP solution in the inner box 20 is heated.

In the preferred technical scheme of this embodiment, the feeding pipe 50 is fixedly connected to one side of the outer wall of the inner tank 20, NMP solution can be added into the inner tank 20 through the feeding pipe 50, the discharge pipe 60 is fixedly connected to one side of the bottom end of the inner tank 20, and purified NMP solution can be discharged through the discharge pipe 60.

Working principle: when the device is used, NMP solution can be added into the inner box body 20 through the feeding pipe 50, then heat generated by the operation of the heating wire 21 can be transmitted to the heat conducting plate 22, heat conduction is achieved through the heat conducting plate 22, NMP solution in the inner box body 20 is heated at the moment, water in the NMP solution can be effectively evaporated by matching with stirring of the stirring mechanism 40, water vapor can be condensed through the water collecting cover 90, the water vapor can be converged into small liquid drops just before beginning, then the small liquid drops fall into the water collecting ring plate 70 along the edge of the water collecting cover 90 to be collected, when the small liquid drops are difficult to converge on the water collecting cover 90 due to small vapor quantity after purification is finished, the first motor 31 drives the cleaning plate 33 to rotate through the rotating rod 32, the scraper 34 can be driven to rotate along the inner wall of the water collecting cover 90, and the water vapor which is not converged into the small liquid drops can be collected.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and implement it without limiting the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (4)

1. NMP retrieves purification device, including outer box (10) and set up in inside interior box (20) of outer box (10), the inside top of outer box (10) is provided with scrapes mechanism (30) and catchment cover (90), inside rabbling mechanism (40) that are provided with of interior box (20), its characterized in that: the scraping mechanism (30) comprises a first motor (31), the power output end of the first motor (31) penetrates through the outer box body (10) and is fixedly connected with a rotating rod (32), a cleaning plate (33) is arranged outside the rotating rod (32), and a scraping plate (34) is arranged on the surface of one end of the cleaning plate (33);

a water collecting ring plate (70) is fixedly arranged between the inner wall of the outer box body (10) and the outer wall of the inner box body (20), a water guide groove (71) is formed in the surface of the top end of the water collecting ring plate (70), and a filter screen (72) is fixedly arranged at the top end of the water collecting ring plate (70);

and one side of the outer wall of the outer box body (10) is fixedly connected with a condensed water outlet (80) at the water collecting annular plate (70).

2. The NMP recovery and purification device of claim 1, wherein: the stirring mechanism (40) comprises a second motor (41), the power output end of the second motor (41) extends to the inside of the inner box body (20) and is fixedly connected with a stirring rod (42), and a plurality of stirring paddles (43) are fixedly arranged outside the stirring rod (42).

3. The NMP recovery and purification device of claim 1, wherein: the electric heating device is characterized in that heat conducting plates (22) are fixedly arranged on two sides of the inner wall of the inner box body (20) through fixing plates (23), and electric heating wires (21) are arranged between the heat conducting plates (22) and the inner wall of the inner box body (20).

4. The NMP recovery and purification device of claim 1, wherein: the feeding pipe (50) is fixedly connected to one side of the outer wall of the inner box body (20), and the discharging pipe (60) is fixedly connected to one side of the bottom end of the inner box body (20).