Device for sampling and recycling NMP waste liquid

Abstract

The utility model discloses a device for sampling and recycling NMP (N-Methyl Pyrrolidone) waste liquid, which belongs to the technical field of waste liquid sampling and comprises rectification equipment, a sampling component is arranged on the inner side wall of a sampling frame, a first rotating disc is fixedly connected to the output end of a motor, teeth are fixedly connected to the outer side wall of the first rotating disc, and a conveying component is arranged at the bottom of a connecting column. According to the device for sampling and recycling the NMP waste liquid, a motor drives a first rotating disc to rotate, teeth are fixedly mounted on the outer side wall of the first rotating disc, and the teeth are arrayed on an arc-shaped surface of the first rotating disc and occupy half of the arc-shaped surface, so that when the first rotating disc rotates, a moving frame is driven by the teeth to reciprocate; the speed of the first rotating disc is kept unchanged, so that the round-trip period of the moving frame can be consistent, the sampling interval time can be further consistent, the sampling of the waste liquid can be more uniform, the sampling accuracy can be improved, and errors caused by manual work can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of waste liquid sampling technology, specifically, it relates to a device for sampling and recycling NMP waste liquid. Background Technology

[0002] In today's industrial production field, NMP (N-methylpyrrolidone) is a high-performance organic solvent. With its good solubility, low volatility and chemical stability, it is widely used in many key industries such as lithium battery manufacturing, electronic component cleaning and chemical synthesis. However, with the vigorous development of these industries, a large amount of NMP waste liquid is generated.

[0003] NMP waste liquid is not only complex in composition, usually containing unreacted raw materials, reaction byproducts and other impurities, but also has a certain degree of toxicity and corrosiveness. If it is not disposed of properly, it will not only cause serious environmental pollution and pose a long-term threat to soil, water bodies and ecosystems, but also lead to a great waste of resources and increase the production costs of enterprises.

[0004] Existing waste liquid sampling devices typically rely on manual sampling. This can lead to errors in the amount of waste liquid sampled each time, and the inconsistent sampling time intervals can also affect the accuracy of the sampling.

[0005] To address the aforementioned issues, this application proposes an apparatus for sampling and recovering NMP waste liquid. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a device for sampling and recycling NMP waste liquid, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An apparatus for sampling and recovering NMP waste liquid includes a distillation unit. A conveying frame is fixedly connected to the outer wall of the distillation unit. A sampling frame is fixedly connected to the end of the conveying frame away from the distillation unit. A conveying pipe is fixedly connected to the bottom of the sampling frame. A sampling assembly is provided on the inner wall of the sampling frame. The sampling assembly includes a motor fixed inside the sampling frame. A first rotating disk is fixedly connected to the output end of the motor. Teeth are fixedly connected to the outer wall of the first rotating disk. A movable frame is slidably connected inside the sampling frame. A first toothed groove is formed on the side of the movable frame near the first rotating disk. A connecting column is fixedly connected to the bottom of the movable frame. A conveying assembly is provided at the bottom of the connecting column.

[0009] Preferably, the conveying assembly includes a connecting seat fixed to the bottom of the connecting column, the outer side wall of the connecting seat has a rotating hole, the connecting seat is rotatably connected to a rotating shaft through the rotating hole, and the inner side wall of the rotating shaft is fixedly connected to a sampling groove.

[0010] Preferably, a second rotating disk is fixedly connected to the end of the rotating shaft away from the sampling groove, a second toothed groove is provided on the outer side wall of the second rotating disk, and a toothed rack is provided on the inner wall of the sampling frame near the conveying frame.

[0011] Preferably, the top of the sampling groove is provided with a sampling port, and the outer side wall of the rack is adapted to the inner side wall of the second tooth groove.

[0012] Preferably, a fitting seat is fixedly connected to the inner side wall of the sampling frame near the conveying frame, and the fitting seat is adapted to the sampling port opened at the top of the sampling groove.

[0013] Preferably, the bottom of the distillation apparatus is fixedly connected with a support leg.

[0014] In summary, the technical effects and advantages of this utility model are as follows: This device for sampling and recycling NMP waste liquid, by having a motor drive a first rotating disk to rotate, and because teeth are fixedly installed on the outer wall of the first rotating disk, the teeth are arrayed on the arc-shaped surface of the first rotating disk and occupy half of the arc-shaped surface, so that when the first rotating disk rotates, the moving frame is driven to move back and forth through the teeth. The speed of the first rotating disk remains constant, so that the reciprocating cycle of the moving frame is consistent, thereby keeping the sampling interval consistent, making the waste liquid sampling more uniform and improving the sampling accuracy, and reducing errors caused by human error. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the movable frame and related structures of this utility model;

[0017] Figure 3 This is a schematic diagram of the first rotating disk and its related structures according to the present invention;

[0018] Figure 4 This is a schematic diagram of the rack and related structures of this utility model;

[0019] Figure 5 This is a schematic diagram of the sampling groove and related structures of this utility model.

[0020] In the diagram: 1. Distillation equipment; 2. Conveying frame; 3. Sampling frame; 4. Conveying pipe; 5. Sampling assembly; 501. Motor; 502. First rotating disk; 503. Tooth; 504. Moving frame; 505. First tooth groove; 506. Connecting column; 6. Conveying assembly; 601. Connecting seat; 602. Rotating hole; 603. Rotating shaft; 604. Sampling groove; 605. Second rotating disk; 606. Second tooth groove; 607. Rack; 608. Fitting seat; 7. Support leg. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-3 An apparatus for sampling and recovering NMP waste liquid includes a distillation unit 1. A conveying frame 2 is fixedly connected to the outer wall of the distillation unit 1. A sampling frame 3 is fixedly connected to the end of the conveying frame 2 away from the distillation unit 1. A conveying pipe 4 is fixedly connected to the bottom of the sampling frame 3. A sampling component 5 is provided on the inner wall of the sampling frame 3. The sampling component 5 includes a motor 501 fixed inside the sampling frame 3. A first rotating disk 502 is fixedly connected to the output end of the motor 501. Teeth 503 are fixedly connected to the outer wall of the first rotating disk 502. A movable frame 504 is slidably connected inside the sampling frame 3. A first toothed groove 505 is opened on the side of the movable frame 504 near the first rotating disk 502. A connecting column 506 is fixedly connected to the bottom of the movable frame 504. A conveying component 6 is provided at the bottom of the connecting column 506. The sampling component 5 installed inside the sampling frame 3 is used to guide the conveying pipe... 4. The waste liquid inside is sampled, and the motor 501 drives the first rotating disk 502 to rotate. Half of the arc-shaped surface of the first rotating disk 502 is arrayed with teeth 503, so that the first rotating disk 502 drives the moving frame 504 to move through the teeth 503. When the teeth 503 disengage from the inside of the first tooth groove 505, the moving frame 504 moves downward under the action of gravity, so that the first rotating disk 502 drives the teeth 503 to rotate one revolution and then enters the inside of the first tooth groove 505 to drive the moving frame 504 to move. So that the moving frame 504 moves up and down reciprocally inside the sampling frame 3, so that the moving frame 504 drives the conveying component 6 to move reciprocally, thereby indirectly sampling the waste liquid inside the conveying pipe 4, making the obtained sample more uniform. The collected waste liquid is transported to the inside of the distillation equipment 1 for distillation through the conveying frame 2.

[0023] Reference Figure 4-5The conveying assembly 6 includes a connecting seat 601 fixed to the bottom of the connecting column 506. A rotating hole 602 is provided on the outer side wall of the connecting seat 601. A rotating shaft 603 is rotatably connected to the connecting seat 601 through the rotating hole 602. A sampling groove 604 is fixedly connected to the inner side wall of the rotating shaft 603. The rotating hole 602 on the outer side wall of the connecting seat 601 is adapted to the rotating shaft 603, so that the rotating shaft 603 drives the sampling groove 604 to rotate inside the rotating hole 602. The waste liquid can be sampled by entering the conveying pipe 4 through the sampling groove 604.

[0024] Reference Figure 5 A second rotating disk 605 is fixedly connected to the end of the rotating shaft 603 away from the sampling groove 604. The outer side wall of the second rotating disk 605 is provided with a second toothed groove 606. A rack 607 is provided on the inner wall of the sampling frame 3 near the conveying frame 2. By installing the second rotating disk 605 at the end of the rotating shaft 603 away from the sampling groove 604, and with the rotating shaft 603, the sampling groove 604 and the second rotating disk 605 coaxial, when the connecting seat 601 drives the sampling groove 604 to move upward, the second toothed groove 606 on the outer side wall of the second rotating disk 605 is adapted to the rack 607, so that the second rotating disk 605 rotates under the drive of the rack 607, thereby allowing the sampling groove 604 to be flipped, and the waste liquid sampled inside the sampling groove 604 to be poured out. The top of the sampling groove 604 rotates towards the conveying frame 2.

[0025] Reference Figure 5 The top of the sampling tank 604 is provided with a sampling port. The outer side wall of the rack 607 is adapted to the inner side wall of the second tooth groove 606. When the sampling tank 604 enters the interior of the conveying pipe 4 through the sampling port, the waste liquid can be sampled through the sampling port. Since the sampling port is provided at the top of the sampling tank 604 and the rotating shaft 603 is located at the center of both sides of the sampling tank 604, the side of the sampling tank 604 with the sampling port is lighter. Under the action of gravity, the sampling port is always upward, which facilitates the sampling of waste liquid. The sampling tank 604 is rotated by the cooperation of the rack 607 and the second tooth groove 606, so that the sampled waste liquid can be discharged.

[0026] Reference Figure 4 A fitting seat 608 is fixedly connected to the inner side wall of the sampling frame 3 near the side of the conveying frame 2. The fitting seat 608 is adapted to the sampling port opened at the top of the sampling tank 604. The fitting seat 608 is provided on the lower edge of the side of the sampling frame 3 near the side of the conveying frame 2, so that when the sampling tank 604 rotates, the sampling port of the sampling tank 604 fits with the fitting seat 608. Thus, the waste liquid can enter the interior of the conveying frame 2 under the conveying of the fitting seat 608, and then be transported to the interior of the distillation equipment 1 for distillation through the conveying frame 2.

[0027] Reference Figure 1 The bottom of the distillation apparatus 1 is fixedly connected to a support leg 7. The four support legs 7 arranged in a circumferential array at the bottom of the distillation apparatus 1 support the distillation apparatus 1, so that the distillation apparatus 1 remains stable during operation, preventing the distillation apparatus 1 from shaking or collapsing during use, and reducing the impact of vibration on the distillation apparatus 1.

[0028] Working principle: The motor 501 drives the first rotating disk 502 to rotate, which in turn drives the toothed gear 503 to rotate. Since the toothed gear 503 is located on one side of the first rotating disk 502, the first rotating disk 502 drives the toothed gear 503 to move the moving frame 504 up and down. When the toothed gear 503 disengages from the first tooth groove 505, the moving frame 504 moves downward under the action of gravity, thus allowing the moving frame 504 to move up and down reciprocally. The moving frame 504 drives... The connecting column 506 and the connecting seat 601 move up and down, causing the connecting seat 601 to drive the sampling tank 604 to move up and down reciprocally. This allows the sampling tank 604 to indirectly sample the waste liquid inside the conveying pipe 4. When the sampling tank 604 moves upward, the second toothed groove 606 rotates under the drive of the rack 607, causing the waste liquid sampled inside the sampling tank 604 to enter the interior of the conveying frame 2 through the fitting seat 608. Then, the waste liquid is conveyed into the interior of the distillation equipment 1 through the conveying frame 2 for distillation operation.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for sampling and recovering NMP waste liquid, comprising a distillation unit (1), characterized in that, A conveying frame (2) is fixedly connected to the outer wall of the distillation apparatus (1). A sampling frame (3) is fixedly connected to the end of the conveying frame (2) away from the distillation apparatus (1). A conveying pipe (4) is fixedly connected to the bottom of the sampling frame (3). A sampling component (5) is provided on the inner wall of the sampling frame (3). The sampling component (5) includes a motor (501) fixed inside the sampling frame (3). A first rotating disk (502) is fixedly connected to the output end of the motor (501). Teeth (503) are fixedly connected to the outer wall of the first rotating disk (502). A moving frame (504) is slidably connected inside the sampling frame (3). A first tooth groove (505) is opened on the side of the moving frame (504) close to the first rotating disk (502). A connecting column (506) is fixedly connected to the bottom of the moving frame (504). A conveying component (6) is provided at the bottom of the connecting column (506).

2. The apparatus for sampling and recovering NMP waste liquid according to claim 1, characterized in that, The conveying assembly (6) includes a connecting seat (601) fixed at the bottom of the connecting column (506). The outer side wall of the connecting seat (601) is provided with a rotating hole (602). The connecting seat (601) is rotatably connected to a rotating shaft (603) through the rotating hole (602). The inner side wall of the rotating shaft (603) is fixedly connected to a sampling groove (604).

3. The apparatus for sampling and recovering NMP waste liquid according to claim 2, characterized in that, The rotating shaft (603) is fixedly connected to a second rotating disk (605) at one end away from the sampling groove (604). The outer side wall of the second rotating disk (605) is provided with a second toothed groove (606). The inner wall of the sampling frame (3) near the conveying frame (2) is provided with a rack (607).

4. The apparatus for sampling and recovering NMP waste liquid according to claim 3, characterized in that, The top of the sampling groove (604) is provided with a sampling port, and the outer side wall of the rack (607) is adapted to the inner side wall of the second tooth groove (606).

5. The apparatus for sampling and recovering NMP waste liquid according to claim 2, characterized in that, The inner side wall of the sampling frame (3) is fixedly connected to the side of the conveying frame (2) with a fitting seat (608), and the fitting seat (608) is adapted to the sampling port opened at the top of the sampling groove (604).

6. The apparatus for sampling and recovering NMP waste liquid according to claim 1, characterized in that, The bottom of the distillation equipment (1) is fixedly connected to a support leg (7).

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