Ethyl acetate solvent recycling device

Abstract

The utility model discloses an ethyl acetate solvent recycling device, which relates to the technical field of ethyl acetate solvents and comprises a treatment tank, the top of an inner cavity of the treatment tank is in bolted connection with a filtering mechanism, the top of the treatment tank is fixedly connected with an acid-base adjusting mechanism, and the acid-base adjusting mechanism comprises a motor. The bottom of the motor rotating shaft is fixedly connected with a screw rod, the surface of the screw rod is in threaded connection with a mounting piece, and the two sides of the mounting piece are in lap joint with limiting nuts. Through the arrangement of the acid-base adjusting mechanism, after an ethyl acetate solution is filtered to remove impurities, when the pH value sensor detects that the pH value in a solvent deviates from a neutral range, the corresponding electromagnetic valve is opened, a proper amount of acid-base adjusting agent is automatically added into the solvent, and the pH value of the solvent is adjusted to be close to neutral; compared with a conventional treatment mode, the method has the advantages that the quality of the recovered ethyl acetate solution can be effectively improved, and the effect is better when the ethyl acetate solution is recycled.

Description

Technical Field

[0001] This utility model relates to the field of ethyl acetate solvent technology, and specifically to an ethyl acetate solvent recycling device. Background Technology

[0002] Ethyl acetate can be used as both a fragrance and a solvent. When used as a solvent, it refers to the dissolving medium of ethyl acetate as a solute to dissolve other substances. It can dissolve a variety of organic compounds, such as resins in coatings, polymers in adhesives, pigments and binders in inks, etc. It also has good solubility for nitrocellulose, ethylcellulose, chlorinated rubber, ethylene resin, etc., making it widely used in the manufacturing process of these products in chemical production.

[0003] Currently, when recycling ethyl acetate solvent, a simple distillation method is often used to separate it from other liquids by taking advantage of the difference in boiling points. However, this separation method lacks effective pretreatment and purification methods for ethyl acetate solvent containing trace amounts of acidic or alkaline impurities, which can easily lead to side reactions during the recycling process and cause certain inconveniences. Utility Model Content

[0004] This invention provides an ethyl acetate solvent recycling device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An ethyl acetate solvent recycling device includes a processing tank. A filter mechanism is bolted to the top of the inner cavity of the processing tank. An acid-base adjustment mechanism is fixedly connected to the top of the processing tank. The acid-base adjustment mechanism includes a motor. A screw is fixedly connected to the bottom of the motor shaft. An installation component is threaded to the surface of the screw. Limiting nuts overlap on both sides of the installation component. A main mixing blade is fixedly connected to the surface of the installation component. An auxiliary mixing blade is provided inside the installation component.

[0007] A further improvement of the present invention is that the acid-base regulating mechanism further includes an acid-base regulating agent storage tank, and a guide pipe is provided on the surface of the acid-base regulating agent storage tank.

[0008] A further improvement of this utility model is that: an electromagnetic valve is installed inside the guide tube, one end of the guide tube is connected to a material distribution tube, and the bottom of the material distribution tube is connected to an addition tube.

[0009] A further improvement of the present invention is that the processing tank includes a tank body, and a control terminal is provided on the surface of the tank body, and the control terminal is electrically connected to a solenoid valve.

[0010] A further improvement of this utility model is that a pH sensor is provided on the inner wall of the tank, and the pH sensor is electrically connected to the control terminal.

[0011] A further improvement of the present invention is that: a lid is provided on the top of the tank, a feed pipe is provided on the surface of the lid, and a discharge pipe is provided at the bottom of the inner cavity of the tank.

[0012] A further improvement of the present invention is that the filtration mechanism includes a primary filter tank, and a secondary filter tank is sleeved on the surface of the primary filter tank.

[0013] A further improvement of this utility model is that: a high-efficiency filter tank is sleeved on the surface of the medium-efficiency filter tank, and a screw is inserted into the inside of the high-efficiency filter tank. One end of the screw passes through the medium-efficiency filter tank and the primary filter tank and is threadedly connected to the top of the inner cavity of the can lid.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This invention provides an ethyl acetate solvent recycling device. Through the establishment of an acid-base adjustment mechanism, after the ethyl acetate solution has been filtered to remove impurities, when a pH sensor detects that the acidity or alkalinity of the solvent deviates from the neutral range, the corresponding solenoid valve opens, automatically adding an appropriate amount of acid-base adjuster to bring the solvent's pH value close to neutral. This prevents side reactions during subsequent recycling, promotes energy conservation and emission reduction, and compared with conventional treatment methods, effectively improves the quality of the recovered ethyl acetate solution, resulting in better recycling performance and increased economic benefits. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the present invention;

[0018] Figure 3 This is a bottom view schematic diagram of the acid-base adjustment mechanism of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the acid-base adjustment mechanism of this utility model;

[0020] Figure 5 This is an exploded structural diagram of the filtration mechanism of this utility model.

[0021] In the diagram: 11. Tank body; 12. Control terminal; 13. pH sensor; 14. Tank lid; 15. Feed pipe; 16. Discharge pipe; 21. Primary filter tank; 22. Medium-efficiency filter tank; 23. High-efficiency filter tank; 31. Motor; 32. Screw; 33. Mounting component; 34. Limit nut; 35. Main mixing blade; 36. Auxiliary mixing blade; 37. Acid-base regulator storage tank; 38. Guide pipe; 39. Solenoid valve; 310. Distributor pipe; 311. Addition pipe. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to embodiments:

[0023] Example 1

[0024] like Figure 1-5 As shown, this utility model provides an ethyl acetate solvent recycling device, including a processing tank. A filter mechanism is bolted to the top of the inner cavity of the processing tank. An acid-base adjustment mechanism is fixedly connected to the top of the processing tank. The acid-base adjustment mechanism includes a motor 31. A screw 32 is fixedly connected to the bottom of the shaft of the motor 31. An installation part 33 is threadedly connected to the surface of the screw 32. Limiting nuts 34 overlap on both sides of the installation part 33. A main mixing blade 35 is fixedly connected to the surface of the installation part 33. An auxiliary mixing blade 36 is provided inside the installation part 33. The acid-base adjustment mechanism also includes an acid-base regulator storage tank 37. A guide pipe 38 is provided on the surface of the acid-base regulator storage tank 37. A solenoid valve 39 is provided inside the guide pipe 38. One end of the guide pipe 38 is connected to a distribution pipe 310. The bottom of the distribution pipe 310 is connected to an addition pipe 311.

[0025] In this embodiment, when the solvent is acidic, the solenoid valve 39 corresponding to the acid-base regulator storage tank 37 is opened, allowing the alkaline regulator to enter the distribution pipe 310 along the guide pipe 38, and then enter the tank 11 through multiple addition pipes 311 to add to the solvent and adjust its pH. Similarly, when the solvent is alkaline, the solenoid valve 39 corresponding to the acid-base regulator storage tank 37 is opened to add the acid regulator. During the addition process, the motor 31 drives the screw 32 to rotate, causing the mounting component 33 to drive the main mixing blade 35 and the auxiliary mixing blade 36 to rotate, mixing the regulator and the solution evenly, making the data detected by the pH sensor 13 more accurate.

[0026] Example 2

[0027] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the processing tank includes a tank body 11, a control terminal 12 is provided on the surface of the tank body 11, the control terminal 12 is electrically connected to the solenoid valve 39, a pH sensor 13 is provided on the inner wall of the tank body 11, the pH sensor 13 is electrically connected to the control terminal, a tank cover 14 is provided on the top of the tank body 11, a feed pipe 15 is provided on the surface of the tank cover 14, and a discharge pipe 16 is provided at the bottom of the inner cavity of the tank body 11.

[0028] In this embodiment, after the solvent enters the tank 11, the pH value sensor 13 detects the acidity or alkalinity of the solvent and transmits the data to the control terminal 12. After comparing the data, the control terminal 12 opens the solenoid valve 39 corresponding to the acid-base regulator storage tank 37, adds the acid-base regulator, and after adjustment, the solution can be discharged from the discharge pipe 16. After distillation, it can be reused, making the solvent recyclable. At the same time, the setting of the limiting nut 34 allows the mixing blade to be flexibly disassembled, making it easier to clean. At the same time, it will not hinder the disassembly and cleaning of the filter mechanism after disassembly, making it more convenient to use.

[0029] Example 3

[0030] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, the filtration mechanism includes a primary filter tank 21, a secondary filter tank 22 is sleeved on the surface of the primary filter tank 21, a high-efficiency filter tank 23 is sleeved on the surface of the secondary filter tank 22, a screw is inserted into the interior of the high-efficiency filter tank 23, one end of the screw passes through the secondary filter tank 22 and the primary filter tank 21 and is threadedly connected to the top of the inner cavity of the can cover 14.

[0031] In this embodiment, when processing ethyl acetate solvent, ethyl acetate solvent is injected into the device through the feed pipe 15. Under the guidance of the feed pipe 15, the ethyl acetate solvent enters the primary filter tank 21. The primary filter tank 21 filters out larger impurities in the solvent. Then, it passes through the medium-efficiency filter tank 22 and the high-efficiency filter tank 23 to remove small impurities in the solvent.

[0032] The working principle of this ethyl acetate solvent recycling device will be explained in detail below.

[0033] like Figure 1-5As shown, when processing ethyl acetate solvent, ethyl acetate solvent is injected into the device through the feed pipe 15. Under the guidance of the feed pipe 15, the ethyl acetate solvent enters the primary filter tank 21. Through the primary filter tank 21, larger impurities in the solvent are filtered out. Then, it passes through the medium-efficiency filter tank 22 and the high-efficiency filter tank 23 to remove small impurities in the solvent. After impurity removal, the solvent enters the tank 11. The pH value sensor 13 detects the acidity or alkalinity of the solvent and transmits the data to the control terminal 12. After comparing the data, the control terminal 12 opens the solenoid valve 39 corresponding to the acid-base regulator storage tank 37 when the solvent is acidic, so that the alkalinity regulator enters the distribution pipe 310 along the guide pipe 38. Subsequently, it is added from multiple... Pipe 311 enters tank 11 and is added to the solvent to adjust its pH. When the solvent is alkaline, the solenoid valve 39 corresponding to the acid-base regulator storage tank 37 is opened to add the acid regulator. During the addition process, motor 31 drives screw 32 to rotate, causing mounting part 33 to drive main mixing blade 35 and auxiliary mixing blade 36 to rotate, mixing the regulator with the solution evenly, making the data detected by pH sensor 13 more accurate. After adjustment, the solution can be discharged from discharge pipe 16 and reused after distillation, allowing the solvent to be recycled. At the same time, the setting of limit nut 34 allows the mixing blade to be flexibly disassembled, making it easier to clean. At the same time, it will not hinder the disassembly and cleaning of the filter mechanism after disassembly, making it more convenient to use.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An ethyl acetate solvent recycling device, comprising a processing tank, characterized in that: A filter mechanism is bolted to the top of the inner cavity of the treatment tank. An acid-base adjustment mechanism is fixedly connected to the top of the treatment tank. The acid-base adjustment mechanism includes a motor (31). A screw (32) is fixedly connected to the bottom of the shaft of the motor (31). An installation part (33) is threadedly connected to the surface of the screw (32). Limit nuts (34) overlap on both sides of the installation part (33). A main mixing blade (35) is fixedly connected to the surface of the installation part (33). An auxiliary mixing blade (36) is provided inside the installation part (33).

2. The ethyl acetate solvent recycling device according to claim 1, characterized in that: The acid-base adjustment mechanism also includes an acid-base regulator storage tank (37), and the surface of the acid-base regulator storage tank (37) is provided with a guide pipe (38).

3. The ethyl acetate solvent recycling device according to claim 2, characterized in that: The guide pipe (38) is equipped with a solenoid valve (39) inside. One end of the guide pipe (38) is connected to a material distribution pipe (310), and the bottom of the material distribution pipe (310) is connected to an addition pipe (311).

4. The ethyl acetate solvent recycling device according to claim 1, characterized in that: The processing tank includes a tank body (11), and a control terminal (12) is provided on the surface of the tank body (11). The control terminal (12) is electrically connected to a solenoid valve (39).

5. The ethyl acetate solvent recycling device according to claim 4, characterized in that: A pH sensor (13) is provided on the inner wall of the tank (11), and the pH sensor (13) is electrically connected to the control terminal.

6. The ethyl acetate solvent recycling device according to claim 4, characterized in that: The top of the tank (11) is provided with a tank cover (14), the surface of the tank cover (14) is provided with a feed pipe (15), and the bottom of the inner cavity of the tank (11) is provided with a discharge pipe (16).

7. The ethyl acetate solvent recycling device according to claim 1, characterized in that: The filtration mechanism includes a primary filter tank (21), and a secondary filter tank (22) is fitted onto the surface of the primary filter tank (21).

8. The ethyl acetate solvent recycling device according to claim 7, characterized in that: The surface of the medium-efficiency filter tank (22) is fitted with a high-efficiency filter tank (23). A screw is inserted into the inside of the high-efficiency filter tank (23). One end of the screw passes through the medium-efficiency filter tank (22) and the primary filter tank (21) and is threaded to the top of the inner cavity of the can cover (14).

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