Methanol waste liquid recycling device

Abstract

The utility model discloses a methanol waste liquid recycling device which comprises a frame body and a support frame, the top of the frame body is fixedly connected with a tank body, the inner wall of the tank body is provided with a plurality of heating wires, the top of the tank body is fixedly connected with a top cover, and one side of the top cover is fixedly communicated with a filter box through a pipeline. A detachable filtering assembly is arranged in the filtering box, an L-shaped pipe is fixedly connected to the other side of the top cover in a communicating mode, a round pipe is fixedly connected to the circumferential outer wall of the L-shaped pipe, a spiral pipe is arranged in the round pipe, the two ends of the spiral pipe penetrate through the L-shaped pipe respectively and are provided with a cold source outlet and a cold source inlet, and a collecting box is fixedly connected to the upper surface of the supporting frame. According to the methanol waste liquid recycling device, methanol in the methanol waste liquid can be conveniently recycled, resources are saved, and residual methanol steam can be adsorbed through the replaceable activated carbon filter element.

Description

Technical Field

[0001] This utility model relates to the field of waste liquid recycling technology, and in particular to a methanol waste liquid recycling device. Background Technology

[0002] In industrial production, after a chemical reaction using methanol solution, methanol remains in the reaction liquid. In order to save costs and resources, the waste liquid needs to be recycled. The purpose of treating methanol waste liquid is often not only to filter out solid impurities, but more importantly, to extract the reusable methanol components to achieve the dual effect of resource recovery and cost reduction.

[0003] A search revealed that CN222239142U discloses a closed-loop methanol waste liquid recovery device. This device filters methanol waste liquid by rotating a screen, but it cannot extract methanol, resulting in poor applicability of the device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a methanol waste liquid recycling device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A methanol waste liquid recycling device includes a frame and a support frame. A tank is fixedly connected to the top of the frame. Multiple heating wires are installed on the inner wall of the tank. A top cover is fixedly connected to the top of the tank. A filter box is fixedly connected to one side of the top cover via a pipe. The filter box contains a detachable filter assembly. An L-shaped pipe is fixedly connected to the other side of the top cover. A circular pipe is fixedly connected to the outer circumference of the L-shaped pipe. A spiral pipe is provided inside the circular pipe. The two ends of the spiral pipe pass through the L-shaped pipe and are respectively provided with a cold source outlet and a cold source inlet. A collection box is fixedly connected to the upper surface of the support frame. A conduit is sealed to the top of the collection box by bolts, and the bottom end of the L-shaped pipe is connected and fixed to the conduit.

[0007] As a further embodiment of this utility model, a circular shell is fixedly connected to the top end of the conduit, and a detachable activated carbon filter element is provided inside the circular shell.

[0008] As a further embodiment of this utility model, the filter assembly includes two U-shaped frames, which are respectively fixed to the inner walls of the two sides of the filter box by bolts. A filter screen is movably connected between the two U-shaped frames, and a cover is fixedly connected to the top of the filter box.

[0009] As a further embodiment of this utility model, a stirring rack is movably connected to the top of the tank, and the stirring rack is in contact with the inner circumference of the tank. The top of the tank is provided with a power component that drives the stirring rack to rotate.

[0010] As a further embodiment of this utility model, the power component is a motor, which is fixed to the top outer wall of the tank by bolts, and one end of the motor output shaft is fixed to the top of the stirring rack.

[0011] As a further embodiment of this invention, the vertical rod of the stirring frame is fixedly connected to two stirring blades.

[0012] As a further embodiment of this utility model, the L-shaped tube is located within the space enclosed by the spiral tube and is in contact with the spiral tube.

[0013] As a further improvement of this utility model, an observation port is provided on one side of the collection box, and an observation window is installed inside the observation port.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, the combined use of a spiral tube and an L-shaped tube enables the recovery and reuse of methanol in methanol waste liquid, saving resources and improving the recovery efficiency of the device.

[0016] 2. In this invention, the waste liquid is stirred by rotating the stirring rack and stirring blades, which further heats the waste liquid evenly and improves the evaporation effect of the device.

[0017] 3. In this invention, the replaceable activated carbon filter element can adsorb residual methanol vapor, preventing the direct discharge of residual methanol, reducing pollution, and improving the effectiveness of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the front side of a methanol waste liquid recycling device proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of the tank structure of a methanol waste liquid recycling device proposed in this utility model;

[0020] Figure 3 This is an enlarged structural diagram of part A of a methanol waste liquid recycling device proposed in this utility model.

[0021] In the diagram: 1. Frame; 2. Tank; 3. Filter box; 4. Cover; 5. Top cover; 6. L-shaped pipe; 7. Cold source outlet; 8. Round pipe; 9. Cold source inlet; 10. Round shell; 11. Conduit; 12. Collection box; 13. Support frame; 14. Heating wire; 15. Stirring rack; 16. Spiral tube; 17. Activated carbon filter element; 18. U-shaped frame; 19. Filter screen. Detailed Implementation

[0022] 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. The described embodiments are only some embodiments of the present utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are all within the protection scope of the present utility model.

[0023] Reference Figures 1-3 A methanol waste liquid recycling device includes a frame 1 and a support frame 13. A tank 2 is bolted to the top of the frame 1. Multiple heating wires 14 are installed on the inner wall of the tank 2. When the heating wires 14 are activated, the waste liquid in the tank 2 is heated to the required temperature according to the methanol evaporation temperature. A top cover 5 is bolted to the top of the tank 2. A filter box 3 is connected to one side of the top cover 5 via a pipe. The filter box 3 is equipped with a removable filter assembly. External methanol waste liquid is added into the filter box 3, and solid impurities in the waste liquid are filtered through the filter assembly. The filtered waste liquid is then discharged through a pipe. Inside the tank 2, the filter assembly includes two U-shaped frames 18, which are bolted to the inner walls of both sides of the filter box 3. A filter screen 19 is slidably connected between the two U-shaped frames 18. A cover 4 is bolted to the top of the filter box 3. By removing the screws, the cover 4 is removed from the filter box 3. Then, the filter screen 19 is pulled upwards along the U-shaped frames 18 until it is completely separated, making it easier for workers to clean the filter screen 19 and the fixed impurities inside the filter box 3. An L-shaped tube 6 is connected and fixed to the other side of the top cover 5. A round tube is welded to the outer circumference of the L-shaped tube 6. 8. A spiral tube 16 is provided inside the circular tube 8. An L-shaped tube 6 is located within the space enclosed by the spiral tube 16 and is in contact with the spiral tube 16. The spiral structure of the spiral tube 16 increases the contact area of ​​the tube wall, accelerates the phase change condensation of methanol vapor, and the fluid forms radial mixing under the action of spiral centrifugal force, reducing the temperature gradient and avoiding methanol decomposition caused by local overheating. The two ends of the spiral tube 16 pass through the L-shaped tube 6 respectively and are provided with a cold source outlet 7 and a cold source inlet 9. The methanol vapor generated by heating enters into the L-shaped tube 6. At the same time, a cold source is added into the spiral tube 16 through an external cold source device, which works in conjunction with the cold source inlet 9 and the cold source outlet 7. The cold source is circulated through port 7, so that the cold source in the spiral tube 16 condenses the vapor in the L-shaped tube 6. The upper surface of the support frame 13 is fixed with a collection box 12 by bolts. The top of the collection box 12 is sealed with a conduit 11 by bolts, and the bottom end of the L-shaped tube 6 is connected and fixed to the conduit 11. The liquid generated after condensation enters the collection box 12 through the conduit 11 for collection. The top end of the conduit 11 is fixed with a round shell 10 by bolts. The round shell 10 is equipped with a replaceable activated carbon filter element 17. A small amount of vapor rises into the round shell 10 and is discharged after the methanol vapor is adsorbed by the activated carbon filter element 17.

[0024] In this utility model, it should be noted that a stirring frame 15 is rotatably connected to the top of the tank body 2, and the stirring frame 15 is in contact with the inner circumference of the tank body 2. The top of the tank body 2 is provided with a power component that drives the stirring frame 15 to rotate. The power component is a motor, which is fixed to the outer wall of the top of the tank body 2 by bolts. One end of the motor output shaft is fixed to the top of the stirring frame 15. The vertical rod of the stirring frame 15 is fixed with two stirring blades by bolts. The rotation of the motor causes the stirring frame 15 and the stirring blades to rotate and stir the waste liquid, so that the waste liquid is heated more evenly. An observation port is opened on one side of the collection box 12, and an observation window is installed in the observation port to facilitate the staff to observe the liquid volume in the collection box 12.

[0025] The working principle of this utility model is as follows: First, external methanol waste liquid is added to the filter box 3, allowing solid impurities in the waste liquid to be filtered through the filter assembly. Then, the filtered waste liquid enters the tank 2 through a pipe. The heating wire 14 is activated, and the waste liquid in the tank 2 is heated to the required temperature according to the methanol evaporation temperature. Simultaneously, the motor is started, and the rotation of the motor causes the stirring frame 15 and stirring blades to rotate, further uniformly heating the waste liquid. The methanol vapor generated by heating then enters the L-shaped tube 6. Simultaneously, a cold source is added to the spiral tube 16 through an external cold source device. The cold source circulation is achieved through the cold source inlet 9 and cold source outlet 7, allowing the cold source in the spiral tube 16 to condense the vapor in the L-shaped tube 6. The condensed liquid enters the collection box 12 through the conduit 11 for collection. A small amount of vapor rises into the circular shell 10, is adsorbed by the activated carbon filter element 17, and then discharged.

[0026] Furthermore, the terms "installation," "setup," "connection," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal connections between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

Claims

1. A methanol waste liquid recycling device, comprising a frame (1) and a support frame (13), wherein a tank (2) is fixedly connected to the top of the frame (1), a plurality of heating wires (14) are installed on the inner wall of the tank (2), and a top cover (5) is fixedly connected to the top of the tank (2), characterized in that, A filter box (3) is fixedly connected to one side of the top cover (5) via a pipe. The filter box (3) is equipped with a detachable filter assembly. An L-shaped pipe (6) is fixedly connected to the other side of the top cover (5). A round pipe (8) is fixedly connected to the outer circumference of the L-shaped pipe (6). A spiral pipe (16) is provided inside the round pipe (8). The two ends of the spiral pipe (16) pass through the L-shaped pipe (6) and are provided with a cold source outlet (7) and a cold source inlet (9). A collection box (12) is fixedly connected to the upper surface of the support frame (13). A conduit (11) is sealed to the top of the collection box (12) by bolts. The bottom end of the L-shaped pipe (6) is connected to the conduit (11) and fixedly connected.

2. The methanol waste liquid recycling device according to claim 1, characterized in that, The top end of the conduit (11) is fixedly connected to a round shell (10), and a removable activated carbon filter element (17) is provided inside the round shell (10).

3. The methanol waste liquid recycling device according to claim 1, characterized in that, The filter assembly includes two U-shaped frames (18), which are fixed to the inner walls of the filter box (3) on both sides by bolts. A filter screen (19) is movably connected between the two U-shaped frames (18), and a cover (4) is fixedly connected to the top of the filter box (3).

4. The methanol waste liquid recycling device according to claim 1, characterized in that, A stirring rack (15) is movably connected to the top of the tank (2), and the stirring rack (15) is in contact with the inner circumference of the tank (2). The top of the tank (2) is provided with a power component that drives the stirring rack (15) to rotate.

5. A methanol waste liquid recycling device according to claim 4, characterized in that, The power component is a motor, which is fixed to the top outer wall of the tank (2) by bolts, and one end of the motor output shaft is fixed to the top of the stirring rack (15).

6. The methanol waste liquid recycling device according to claim 4, characterized in that, The vertical rod of the stirring rack (15) is fixedly connected to two stirring blades.

7. The methanol waste liquid recycling device according to claim 1, characterized in that, The L-shaped tube (6) is located within the space enclosed by the spiral tube (16) and is in contact with the spiral tube (16).

8. A methanol waste liquid recycling device according to claim 1, characterized in that, An observation port is provided on one side of the collection box (12), and an observation window is installed inside the observation port.

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