A device for purifying waste propylene glycol methyl ether acetate

Abstract

The utility model discloses a kind of waste propylene glycol methyl ether acetate purification devices, it is related to propylene glycol methyl ether acetate purification technical field, including base frame, the inside rotation of base frame is provided with purification tank, the top of purification tank is provided with sealing cover, the inside of purification tank is erected with the mixed tank for storing activated carbon, by the mixed tank of being arranged in the inside of purification tank, the independent storage of waste propylene glycol methyl ether acetate and activated carbon is realized, when carrying out purification, the outer surface of mixed tank is provided with several groups of flow-through hole, so that waste propylene glycol methyl ether acetate can pass through flow-through hole and enter mixed tank and contact with activated carbon, while the liquid after purification can also flow out from mixed tank, the inner wall of mixed tank is attached with dust cloth, prevent activated carbon particle from leaking out of flow-through hole, ensure the smooth progress of purification process, when draining, propylene glycol methyl ether acetate can be discharged alone, greatly simplify subsequent process, improve purification efficiency.

Description

Technical Field

[0001] This utility model relates to the field of propylene glycol methyl ether acetate purification technology, specifically to a device for purifying waste propylene glycol methyl ether acetate. Background Technology

[0002] Propylene glycol methyl ether acetate is an important industrial solvent, widely used in semiconductor photoresists, coatings, inks, cleaning agents and other fields. After cleaning some circuit boards or related components with propylene glycol methyl ether acetate, workers often recycle the propylene glycol methyl ether acetate, filtering and refining the propylene glycol methyl ether acetate containing impurities before reuse, thereby reducing production costs.

[0003] Most existing equipment for refining propylene glycol methyl ether acetate typically involves mixing impurities in the propylene glycol methyl ether acetate with activated carbon and then heating it to remove trace organic impurities or metal ions from the waste propylene glycol methyl ether acetate. However, during purification, the waste propylene glycol methyl ether acetate is discharged along with the activated carbon and then filtered for separation. This operation significantly reduces filtration efficiency and increases the workload for operators.

[0004] In summary, existing equipment for purifying waste propylene glycol methyl ether acetate suffers from several drawbacks. Firstly, the adsorbed propylene glycol methyl ether acetate is discharged along with the activated carbon, requiring secondary filtration. This process is time-consuming and labor-intensive, significantly reducing purification efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a device for purifying waste propylene glycol methyl ether acetate, in order to solve the technical problem that most existing waste propylene glycol methyl ether acetate purification devices discharge the adsorbed propylene glycol methyl ether acetate together with activated carbon during use, requiring secondary filtration, which is time-consuming and labor-intensive, greatly reducing purification efficiency.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] An apparatus for purifying waste propylene glycol methyl ether acetate includes a base frame.

[0008] The base frame has a rotatable purification tank inside, the top of the purification tank is equipped with a sealing cover, the purification tank has a mixing tank for storing activated carbon inside, the outer surface of the mixing tank has several sets of flow holes, and the inner wall of the mixing tank is covered with a dustproof lining.

[0009] The purification tank has a toothed ring on its top outer surface. Two sets of racks are symmetrically arranged on the outer side of the toothed ring and can slide along the outer surface of the base frame. A vertical plate is arranged at the center of the bottom of one set of racks. A vertical groove is opened inside the vertical plate. A limit slider is slidably arranged inside the vertical groove. A connecting rod is movably arranged on one side of the limit slider.

[0010] Preferably, the purification tank is equipped with a temperature control sensor inside, and the bottom of the mixing tank is funnel-shaped.

[0011] Preferably, the top wall of the base frame is symmetrically provided with a bottom bracket for supporting the purification tank, and the bottom wall of the bottom bracket is provided with a limiting seat for limiting the rotation of the purification tank.

[0012] Preferably, the purification tank is provided with several sets of fixing brackets for fixing and supporting the mixing tank, and the top of the sealing cover is symmetrically provided with material pipe one and material pipe two, with material pipe one connected to the mixing tank and material pipe two connected to the purification tank.

[0013] Preferably, a stirring motor is provided at the top center of the sealing cover, and the stirring motor is located between material pipe one and material pipe two. The output end of the stirring motor is provided with a stirring shaft, and the stirring shaft passes through the top of the mixing tank.

[0014] Preferably, the bottom of the purification tank is symmetrically provided with three sets of columns, and the bottom end of each column is provided with casters that move along the outer wall contour of the limiting seat.

[0015] Preferably, the inner walls on both sides of the top of the base frame are symmetrically provided with limiting grooves for guiding the movement of the rack.

[0016] Preferably, the bottom end of the connecting rod is provided with a servo motor for driving the limit slider to rotate, and the connecting rod is fixedly mounted on one side of the base frame.

[0017] Preferably, the bottom center of the purification tank is provided with a discharge pipe that communicates with the mixing tank, the bottom end of the discharge pipe is movably provided with a sealing plug, and the bottom of the purification tank is provided with a liquid guide pipe.

[0018] Preferably, the purification tank has a water bath jacket inside, and the water bath jacket is distributed on the outside of the mixing tank. The bottom of the outer surface of the purification tank is provided with a liquid inlet pipe, and the top of the outer surface of the purification tank is provided with a liquid outlet pipe.

[0019] The beneficial effects of this utility model are:

[0020] 1. In this utility model, the waste propylene glycol methyl ether acetate and activated carbon are stored independently by means of a mixing tank set inside the purification tank. During purification, several sets of flow holes are opened on the outer surface of the mixing tank, allowing the waste propylene glycol methyl ether acetate to enter the mixing tank through the flow holes and come into contact with the activated carbon. At the same time, the purified liquid can also flow out from the mixing tank. The inner wall of the mixing tank is lined with a dustproof cloth to prevent activated carbon particles from leaking out from the flow holes, ensuring the smooth progress of the purification process. During the discharge, the propylene glycol methyl ether acetate can be discharged separately, which greatly simplifies the subsequent process and improves the purification efficiency; 2. In this utility model. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is one of the overall three-dimensional schematic diagrams of the device in this utility model;

[0023] Figure 2 This is the second overall three-dimensional schematic diagram of the device in this utility model;

[0024] Figure 3 This is the third overall three-dimensional schematic diagram of the device in this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the device in this utility model.

[0026] In the diagram: 1. Base frame; 2. Base bracket; 3. Limiting seat; 4. Purification tank; 5. Sealing cover; 6. Mixing tank; 7. Flow hole; 8. Fixing frame; 9. Dustproof lining; 10. Material pipe one; 11. Material pipe two; 12. Stirring motor; 13. Stirring shaft; 14. Column; 15. Caster wheel; 16. Gear ring; 17. Gear rack; 18. Limiting groove; 19. Vertical plate; 20. Vertical groove; 21. Limiting slider; 22. Connecting rod; 23. Servo motor; 24. Discharge pipe; 25. Sealing plug; 26. Liquid guide pipe; 27. Water bath jacket; 28. Liquid inlet pipe; 29. ​​Liquid outlet pipe. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0028] like Figures 1-4 As shown, an apparatus for purifying waste propylene glycol methyl ether acetate includes a base frame 1.

[0029] A purification tank 4 is rotatably mounted inside the base frame 1. A sealing cover 5 is installed on the top of the purification tank 4. A mixing tank 6 for storing activated carbon is mounted inside the purification tank 4. Several sets of flow holes 7 are opened on the outer surface of the mixing tank 6. A dustproof lining 9 is fitted to the inner wall of the mixing tank 6. A toothed ring 16 is installed on the outer surface of the top of the purification tank 4. Two sets of toothed racks 17, which can slide along the outer surface of the base frame 1, are symmetrically arranged on the outer side of the toothed ring 16. A vertical plate 19 is installed at the center of the bottom of one set of toothed racks 17. A vertical groove 20 is opened inside the vertical plate 19. A limiting slider 21 is slidably mounted inside the vertical groove 20. A connecting rod 22 is movably mounted on one side of the limiting slider 21. A base bracket 2 for supporting the purification tank 4 is symmetrically arranged on the top wall of the base frame 1. The bottom wall of the base bracket 2 is provided with a limiting seat 3 for limiting the rotation of the purification tank 4. Specifically, the interior of the purification tank 4 is provided with several sets of fixing frames 8 for fixing and supporting the mixing tank 6. The top of the sealing cover 5 is symmetrically provided with a first material pipe 10 and a second material pipe 11, with the first material pipe 10 connected to the mixing tank 6 and the second material pipe 11 connected to the purification tank 4. A stirring motor 12 is provided in the center of the top of the sealing cover 5, and the stirring motor 12 is located between the first material pipe 10 and the second material pipe 11. The output end of the stirring motor 12 is provided with a stirring shaft 13, which passes through the top of the mixing tank 6. The bottom of the purification tank 4 is symmetrically provided with three sets of columns 14, and the bottom end of the columns 14 is provided with casters 15 that move along the outer contour of the limiting seat 3. The top of the base frame 1... Symmetrical limiting grooves 18 are provided on both inner walls to limit and guide the movement of the rack 17. A discharge pipe 24 communicating with the mixing tank 6 is provided at the center of the bottom of the purification tank 4. A sealing plug 25 is movably provided at the bottom end of the discharge pipe 24. A liquid guide pipe 26 is provided at the bottom of the purification tank 4. A water bath jacket 27 is provided inside the purification tank 4 and is distributed on the outside of the mixing tank 6. A liquid inlet pipe 28 is provided at the bottom of the outer surface of the purification tank 4, and a liquid outlet pipe 29 is provided at the top of the outer surface of the purification tank 4. A servo motor 23 for driving the limiting slider 21 to rotate is provided at the bottom end of the connecting rod 22. The connecting rod 22 is fixedly provided on one side of the base frame 1. The base frame 1 serves as the supporting structure of the entire device, ensuring the overall stability of the device during operation. During operation, activated carbon and other adsorbents are added to the mixing tank 6 through feed pipe 10, and waste propylene glycol methyl ether acetate to be purified is added to the purification tank 4 through feed pipe 11. Heating or cooling media is injected into the water bath jacket 27 through the liquid inlet pipe 28 to regulate the temperature of the material in the purification tank 4, stabilizing the internal temperature at 50-60 degrees Celsius. Then, the stirring motor 12 is started, driving the stirring shaft 13 to rotate and stir the material in the mixing tank 6, promoting full contact between the activated carbon and the waste propylene glycol methyl ether acetate, thus improving the purification effect. The stirring time is 1-2 hours. Because the outer surface of the mixing tank 6 has several sets of flow holes 7, the waste propylene glycol methyl ether acetate can enter the mixing tank 6 through the flow holes 7 and contact the activated carbon.Simultaneously, the purified liquid can also flow out from the mixing tank 6. The inner wall of the mixing tank 6 is lined with a dustproof lining 9 to prevent activated carbon particles from leaking out from the flow hole 7, ensuring the smooth progress of the purification process. After the adsorption and extraction are completed, the drain pipe 29 is used to discharge the medium in the water bath jacket 27, the discharge pipe 24 is used to control the discharge of activated carbon in the mixing tank 6, and the liquid guide pipe 26 is used to discharge the purified propylene glycol methyl ether acetate. When the propylene glycol methyl ether acetate is discharged to a certain amount, the operator can start the servo motor 23. The servo motor 23 drives the connecting rod 22 to rotate. The limiting slider 21 at the end of rod 22 can slide along the vertical groove 20. During the sliding process, the limiting slider 21 can pull the rack 17 to reciprocate left and right, thereby driving the purification tank 4 and the mixing tank 6 to rotate as a whole. The centrifugal force generated by the reciprocating rotation can further facilitate the removal of propylene glycol methyl ether acetate adsorbed by activated carbon, further improving the purification and recovery rate of the device. The universal wheel 15 moves along the outer contour of the limiting seat 3, assisting the purification tank 4 in rotating and limiting the rotation of the purification tank 4, ensuring the stability of the purification tank 4 during rotation.

[0030] In this embodiment, specifically, the purification tank 4 is equipped with a temperature control sensor inside, which can monitor the temperature inside the purification tank 4 in real time so as to accurately control the temperature during the purification process. The bottom of the mixing tank 6 is funnel-shaped to facilitate the discharge of the activated carbon stored in the mixing tank 6.

[0031] The content not described in detail in this document is prior art known to those skilled in the art.

[0032] The working principle of this invention is as follows: During use, activated carbon and other adsorbents are added to the mixing tank 6 through feed pipe 10, and waste propylene glycol methyl ether acetate to be purified is added to the purification tank 4 through feed pipe 11. Heating medium is injected into the water bath jacket 27 through the inlet pipe 28 to stabilize the internal temperature at 50-60 degrees Celsius. Then, the stirring motor 12 is started, driving the stirring shaft 13 to rotate and stir the material in the mixing tank 6 for 1-2 hours. After adsorption and extraction are completed, the discharge pipe 24 is used to control the amount of activated carbon in the mixing tank 6. The discharge tube 26 is used to discharge the purified propylene glycol methyl ether acetate. When a certain amount of propylene glycol methyl ether acetate is discharged, the operator can start the servo motor 23. The servo motor 23 drives the connecting rod 22 to rotate. The limiting slider 21 set at the end of the connecting rod 22 can slide along the vertical slide groove 20. The limiting slider 21 can pull the rack 17 to move back and forth, thereby driving the purification tank 4 and the mixing tank 6 to rotate as a whole. The centrifugal force generated by the reciprocating rotation can further facilitate the removal of the propylene glycol methyl ether acetate adsorbed by the activated carbon.

[0033] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An apparatus for purifying waste propylene glycol methyl ether acetate, comprising a base frame (1), characterized in that: The base frame (1) is rotatably equipped with a purification tank (4), the top of the purification tank (4) is equipped with a sealing cover (5), the purification tank (4) is equipped with a mixing tank (6) for storing activated carbon, the outer surface of the mixing tank (6) is provided with several sets of flow holes (7), and the inner wall of the mixing tank (6) is covered with a dustproof lining cloth (9). The purification tank (4) has a toothed ring (16) on its top outer surface. Two sets of racks (17) are symmetrically arranged on the outer side of the toothed ring (16) and can slide along the outer surface of the base frame (1). A vertical plate (19) is arranged at the bottom center of one set of racks (17). A vertical groove (20) is opened inside the vertical plate (19). A limit slider (21) is slidably arranged inside the vertical groove (20). A connecting rod (22) is movably arranged on one side of the limit slider (21).

2. The apparatus for purifying waste propylene glycol methyl ether acetate according to claim 1, characterized in that, The purification tank (4) is equipped with a temperature control sensor inside, and the bottom of the mixing tank (6) is funnel-shaped.

3. The apparatus for purifying waste propylene glycol methyl ether acetate according to claim 1, characterized in that, The top wall of the base frame (1) is symmetrically provided with a bottom bracket (2) for supporting the purification tank (4), and the bottom wall of the bottom bracket (2) is provided with a limiting seat (3) for limiting the rotation of the purification tank (4).

4. The apparatus for purifying waste propylene glycol methyl ether acetate according to claim 1, characterized in that, The purification tank (4) is equipped with several sets of fixing brackets (8) for fixing and supporting the mixing tank (6). The top of the sealing cover (5) is symmetrically equipped with a material pipe one (10) and a material pipe two (11), and the material pipe one (10) is connected to the mixing tank (6), and the material pipe two (11) is connected to the purification tank (4).

5. The apparatus for purifying waste propylene glycol methyl ether acetate according to claim 4, characterized in that, A stirring motor (12) is provided at the top center of the sealing cover (5), and the stirring motor (12) is located between the first material pipe (10) and the second material pipe (11). The output end of the stirring motor (12) is provided with a stirring shaft (13), and the stirring shaft (13) passes through the top of the mixing tank (6).

6. The apparatus for purifying waste propylene glycol methyl ether acetate according to claim 3, characterized in that, The bottom of the purification tank (4) is symmetrically provided with three sets of columns (14), and the bottom end of the columns (14) is provided with casters (15) that move along the outer wall contour of the limiting seat (3).

7. The apparatus for purifying waste propylene glycol methyl ether acetate according to claim 1, characterized in that, The base frame (1) has symmetrically provided limiting grooves (18) on the inner walls of both sides of the top for limiting and guiding the movement of the rack (17).

8. The apparatus for purifying waste propylene glycol methyl ether acetate according to claim 1, characterized in that, The bottom end of the connecting rod (22) is provided with a servo motor (23) for driving the limit slider (21) to rotate, and the connecting rod (22) is fixedly installed on one side of the base frame (1).

9. The apparatus for purifying waste propylene glycol methyl ether acetate according to claim 1, characterized in that, The bottom center of the purification tank (4) is provided with a discharge pipe (24) that communicates with the mixing tank (6). A sealing plug (25) is movably provided at the bottom end of the discharge pipe (24). A liquid guide pipe (26) is provided at the bottom of the purification tank (4).

10. The apparatus for purifying waste propylene glycol methyl ether acetate according to claim 1, characterized in that, The purification tank (4) is provided with a water bath jacket (27) inside, and the water bath jacket (27) is distributed on the outside of the mixing tank (6). The bottom of the outer surface of the purification tank (4) is provided with an inlet pipe (28), and the top of the outer surface of the purification tank (4) is provided with a drain pipe (29).

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