Solvent type waste solvent recovery processing device
By combining the multi-scraper design with the stirring device, the problem of dead spots in the descaling of the waste solvent treatment device is solved, achieving effective dirt cleaning and equipment pollution prevention, and improving distillation efficiency and the purity of the recovered liquid.
Patent Information
- Application Number
- CN202520491427.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing waste solvent treatment devices have insufficient descaling capacity and imperfect scraper mechanism design, which easily creates cleaning dead corners, resulting in dirt residue and contamination of recycling equipment.
It adopts a multi-scraper design, including arc-shaped scrapers and fan-shaped scrapers, in conjunction with stirring blades and stirring arms. The drive motor drives the mounting shaft to rotate, achieving comprehensive cleaning of the inner wall of the treatment tank, and the movable groove prevents the scrapers from carrying steam into the steam collection channel.
It improves the descaling ability of the distillation vessel, prevents dirt from accumulating inside, avoids equipment contamination, and ensures the purity of the recovered liquid.
Smart Images
Figure CN223930711U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of waste solvent recycling and treatment technology, specifically, it relates to a solvent-based waste solvent recycling and treatment device. Background Technology
[0002] The painting line generates a large amount of waste solvent during processes such as robotic gun washing, paint mixing tank washing, and spot repair cleaning of spray guns. Waste solvent accounts for the second largest proportion of all waste in the factory. Treating it as hazardous waste requires high costs. At the same time, the effective components contained in the waste solvent are not recycled and reused, which also leads to resource waste and makes it impossible to reduce the procurement cost of cleaning solvent.
[0003] Currently, waste solvent treatment primarily employs distillation. Waste solvents distilled within the distillation unit are typically viscous and prone to scaling, making descaling crucial. Existing technologies usually utilize agitators and scrapers within the distillation unit to remove scale from its inner walls. However, the scraper mechanism design is generally inadequate, resulting in poor descaling capabilities and the creation of dead zones that are difficult to reach, hindering the effective removal of all scale. Furthermore, the rotating agitator and scraper can easily carry waste residue and other scale into the vapor collection channel of the distillation unit, contaminating the recovered liquid and its processing equipment, such as condensers and recovery pumps.
[0004] In view of the above, this utility model is hereby proposed. Utility Model Content
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] A solvent-based waste solvent recovery and treatment device includes a base frame and a treatment tank. A treatment vessel is installed inside the treatment tank, and an installation shaft is rotatably mounted inside the treatment vessel. Equally spaced, circumferentially arranged stirring blades are mounted on the outer wall of the installation shaft. Movable grooves are formed at the ends of the stirring blades, and stirring arms are slidably mounted on the inner wall of the movable grooves. Three arc-shaped scrapers are fixedly connected to the ends of the stirring arms, and these scrapers are equidistantly arranged in a circumferential pattern, contacting the inner wall of the treatment vessel. The ends of the arc-shaped scrapers contact one side of the outer wall of the arc-shaped scrapers. A drive motor is installed on one side of the treatment tank, and the output shaft of the drive motor is connected to the end of the installation shaft via a coupling.
[0007] In a preferred embodiment of this utility model, the processing tank and the processing box are provided with a movable hole on one side, and the mounting shaft extends through the movable hole to the outside of the processing box.
[0008] In a preferred embodiment of this utility model, the processing box is installed at the top of the base frame, and an L-shaped mounting bracket is fixedly installed on one side of the outer wall of the base frame. The drive motor is fixedly installed on one side of the outer wall of the mounting bracket.
[0009] In a preferred embodiment of the present invention, a feed pipe is installed on one side of the top of the processing tank, the feed pipe extends to the outside of the processing box, a discharge pipe is provided on one side of the bottom of the processing tank, the discharge pipe extends to the outside of the bottom of the processing box, and a valve is provided on the discharge pipe.
[0010] In a preferred embodiment of the present invention, a water collection pipe is installed on the top of the treatment tank, and water spray holes are evenly distributed at the bottom of the water collection pipe. A water supply pipe is connected to the top of the water collection pipe, and the water supply pipe extends to the outside of the treatment tank.
[0011] In a preferred embodiment of this utility model, the top of the treatment tank is provided with an installation port, the water collection pipe is fixedly connected to the inner wall of the installation port, and a through hole is provided on one side of the treatment box, with the water delivery pipe installed on the inner wall of the through hole.
[0012] In a preferred embodiment of this utility model, a condenser is installed on the top of the processing tank, a steam filter is installed on one side of the top of the processing tank, a connecting pipe is connected to the condenser and the connecting pipe is connected to the steam filter, and a steam collection port is provided on the top of the processing tank and the steam collection port is connected to the condenser through a pipe.
[0013] Compared with the prior art, the present invention has the following advantages:
[0014] This invention utilizes a processing tank as a distillation vessel, which is then heated at a low temperature. After the waste solvent is introduced into the tank, a drive motor is activated to rotate the mounting shaft. This shaft, in turn, rotates the stirring blades and arms, agitating the waste solvent and promoting uniform heating. Simultaneously, the stirring arms drive an arc-shaped scraper that slides along the inner wall of the tank, removing dirt and grime. Furthermore, the arc-shaped scraper drives a fan-shaped scraper that slides along the inner wall of the tank's end, removing dirt and grime from that area. Scraping effectively removes dirt from the treatment tank, significantly improving the descaling capacity inside the distillation vessel. It avoids creating cleaning dead zones and prevents dirt from accumulating in any part of the distillation vessel. When the stirring arm drives the arc-shaped scraper to rotate to the upper part of the treatment tank, the moving groove causes the stirring arm to move towards the moving groove. At this time, the stirring arm drives the arc-shaped scraper to move downward, preventing the arc-shaped scraper from contacting the inner wall of the treatment tank. This avoids the arc-shaped scraper from carrying waste residue and other dirt into the steam collection channel of the distillation unit and causing pollution when it rotates.
[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0016] In the attached diagram:
[0017] Figure 1 This is a schematic diagram of the overall structure of the solvent-based waste solvent recovery and treatment device of this utility model;
[0018] Figure 2 This is a side view of the solvent-based waste solvent recovery and treatment device of this utility model;
[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the processing tank of the solvent-based waste solvent recovery and treatment device of this utility model;
[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the treatment tank of the solvent-based waste solvent recovery and treatment device of this utility model;
[0021] Figure 5 This is a side view cross-sectional structural diagram of the treatment tank of the solvent-based waste solvent recovery and treatment device of this utility model;
[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the stirring blade of the solvent-based waste solvent recovery and treatment device of this utility model.
[0023] In the diagram: 1. Base frame; 2. Processing tank; 3. Condenser; 4. Steam filter; 5. Connecting pipe; 6. Feed pipe; 7. Mounting shaft; 8. Mounting bracket; 9. Drive motor; 10. Processing tank; 11. Water collection pipe; 12. Discharge pipe; 13. Valve; 14. Steam collection port; 15. Water supply pipe; 16. Stirring blade; 17. Stirring arm; 18. Arc-shaped scraper; 19. Fan-shaped scraper; 20. Water spray hole; 21. Movable trough. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0025] like Figures 1 to 6 As shown
[0026] A solvent-based waste solvent recovery and treatment device includes a base frame 1 and a treatment tank 2. The treatment tank 2 is installed on top of the base frame 1. A condenser 3 is installed on the top of the treatment tank 2, and a vapor filter 4 is installed on one side of the top of the treatment tank 2. A connecting pipe 5 is connected to the condenser 3 and communicates with the vapor filter 4. A vapor collection port 14 is provided on the top of the treatment tank 10, and the vapor collection port 14 is connected to the condenser 3 through a pipe. The treatment tank 10 is installed inside the treatment tank 2, and a feed pipe 6 is installed on one side of the top of the treatment tank 10, extending to the outside of the treatment tank 2. The treatment tank 10 serves as a distillation vessel. The device heats the treatment tank 10 at low temperature. Waste solvent is introduced into the treatment tank 10 through the feed pipe 6. A mounting shaft 7 is rotatably installed inside the treatment tank 10. Stirring blades 16 are equidistantly arranged around the outer wall of the mounting shaft 7. The ends of the stirring blades 16 have movable grooves 21. Stirring arms 17 are slidably arranged on the inner wall of the movable grooves 21. Three arc-shaped scrapers 18 are fixedly connected to the ends of the stirring arms 17. The arc-shaped scrapers 18 are equidistantly arranged around the inner wall of the treatment tank 10. Three fan-shaped scrapers 19 are rotatably installed around the ends of the mounting shaft 7. The fan-shaped scrapers 19 are equidistantly arranged around the inner wall of the treatment tank 10. The inner wall of the treatment tank 10 is in contact with the end of the arc-shaped scraper 18, and the end of the arc-shaped scraper 18 is in contact with the outer wall of one side of the fan-shaped scraper 19. A drive motor 9 is installed on one side of the treatment box 2. The output shaft of the drive motor 9 is connected to the end of the mounting shaft 7 via a coupling. When the drive motor 9 is started, the mounting shaft 7 rotates, which in turn rotates the stirring blade 16 and the stirring arm 17. This causes the stirring blade 16 and the stirring arm 17 to agitate the waste solvent, which is beneficial for uniform heating of the waste solvent. At the same time, the stirring arm 17 drives the arc-shaped scraper 18 to slide on the inner wall of the treatment tank 10, which can scrape off the dirt on the inner wall of the treatment tank 10. The scraper 18 drives the fan-shaped scraper 19 to slide on the inner wall of the end of the treatment tank 10, which can scrape off the dirt on the inner wall of the end of the treatment tank 10, thus achieving effective treatment of the dirt in the treatment tank 10. When the stirring arm 17 drives the arc-shaped scraper 18 to rotate to the upper part of the treatment tank 10, under the action of the movable groove 21, the stirring arm 17 moves towards the movable groove 21. At this time, the stirring arm 17 drives the arc-shaped scraper 18 to move down, so that the arc-shaped scraper 18 does not contact the inner wall of the treatment tank 10, which can prevent the arc-shaped scraper 18 from bringing waste residue and other dirt into the steam collection channel of the distillation device and causing pollution when it rotates.
[0027] In a specific embodiment, a movable hole is provided on one side of the treatment tank 10 and the treatment box 2, and the mounting shaft 7 extends through the movable hole to the outside of the treatment box 2. An L-shaped mounting bracket 8 is fixedly installed on the outer wall of one side of the base frame 1. The drive motor 9 is fixedly installed on the outer wall of one side of the mounting bracket 8. A discharge pipe 12 is provided on one side of the bottom of the treatment tank 10, and the discharge pipe 12 extends to the outside of the bottom of the treatment box 2. A valve 13 is provided on the discharge pipe 12. After the treatment is completed, the valve 13 is opened so that the treated waste residue is discharged through the discharge pipe 12.
[0028] Furthermore, a water collection pipe 11 is installed on the top of the treatment tank 10. The bottom of the water collection pipe 11 has evenly distributed spray holes 20. A water supply pipe 15 is connected to the top of the water collection pipe 11 and extends to the outside of the treatment box 2. After the treatment is completed, the water supply pipe 15 is connected to an external water source so that water can enter the water collection pipe 11 through the water supply pipe 15 and be sprayed into the treatment tank 10 through the spray holes 20 at the bottom of the water collection pipe 11. This can wash the inner wall of the treatment tank 10 and the mounting shaft 7, stirring blade 16, stirring arm 17, arc scraper 18 and fan scraper 19 set in the treatment tank 10, achieving a cleaning effect on the inner wall of the treatment tank 10 and the stirring device inside the treatment tank 10. An installation port is opened on the top of the treatment tank 10, and the water collection pipe 11 is fixedly connected to the inner wall of the installation port. A through hole is opened on one side of the treatment box 2, and the water supply pipe 15 is installed on the inner wall of the through hole.
[0029] The implementation principle of the solvent-based waste solvent recovery and treatment device in this embodiment is as follows:
[0030] In practical use, the processing tank 10 is used as a distillation vessel. The processing tank 10 is heated at low temperature. Waste solvent is introduced into the processing tank 10 through the feed pipe 6. Then, the drive motor 9 is started to rotate the mounting shaft 7. The mounting shaft 7 drives the stirring blades 16 and stirring arms 17 to rotate, causing the stirring blades 16 and stirring arms 17 to agitate the waste solvent, which is beneficial for uniform heating of the waste solvent. At the same time, the stirring arms 17 drive the arc-shaped scraper 18 to slide on the inner wall of the processing tank 10, which can scrape away the dirt on the inner wall of the processing tank 10. The arc-shaped scraper 18 also drives the fan-shaped scraper 19 to slide on the inner wall of the end of the processing tank 10, which can scrape away the dirt on the inner wall of the end of the processing tank 10, achieving effective treatment of the dirt inside the processing tank 10. When the stirring arms 17 drive the arc-shaped scraper 18 to rotate to the upper part of the processing tank 10, under the action of the movable groove 21, it causes... The stirring arm 17 moves towards the movable tank 21. At this time, the stirring arm 17 drives the arc-shaped scraper 18 to move downward, so that the arc-shaped scraper 18 does not contact the inner wall of the treatment tank 10. This can prevent the arc-shaped scraper 18 from carrying waste residue and other dirt into the steam collection channel of the distillation device and causing pollution when it rotates. After the treatment is completed, the valve 13 is opened so that the treated waste residue is discharged through the discharge pipe 12. Then, the water supply pipe 15 is connected to the external water source so that water can enter the water collection pipe 11 through the water supply pipe 15 and be sprayed into the treatment tank 10 through the water spray hole 20 at the bottom of the water collection pipe 11. This can wash the inner wall of the treatment tank 10 and the mounting shaft 7, stirring blade 16, stirring arm 17, arc-shaped scraper 18 and fan-shaped scraper 19 set in the treatment tank 10, so as to achieve the cleaning effect of the inner wall of the treatment tank 10 and the stirring device inside the treatment tank 10.
Claims
1. A solvent-based waste solvent recovery and treatment device, comprising a base frame (1) and a treatment tank (2), characterized in that, A processing tank (10) is installed inside the processing box (2). An installation shaft (7) is rotatably installed inside the processing tank (10). An equidistantly arranged stirring blade (16) is installed on the outer wall of the installation shaft (7). A movable groove (21) is opened at the end of the stirring blade (16). A stirring arm (17) is slidably arranged on the inner wall of the movable groove (21). An arc-shaped scraper (18) is fixedly connected to the end of the stirring arm (17). Three arc-shaped scrapers (18) are equidistantly arranged around the arc-shaped scraper (18). The arc-shaped scraper (18) contacts the inner wall of the treatment tank (10). Three fan-shaped scrapers (19) are rotatably mounted at the end of the mounting shaft (7). The fan-shaped scrapers (19) contact the inner wall of the end of the treatment tank (10). The end of the arc-shaped scraper (18) contacts the outer wall of one side of the fan-shaped scraper (19). A drive motor (9) is mounted on one side of the treatment box (2). The output shaft of the drive motor (9) is connected to the end of the mounting shaft (7) through a coupling.
2. The solvent-based waste solvent recovery and treatment device according to claim 1, characterized in that, The processing tank (10) and the processing box (2) are provided with a movable hole on one side, and the mounting shaft (7) extends through the movable hole to the outside of the processing box (2).
3. The solvent-based waste solvent recovery and treatment device according to claim 1, characterized in that, The processing box (2) is installed at the top of the base frame (1). An L-shaped mounting bracket (8) is fixedly installed on one side of the outer wall of the base frame (1). The drive motor (9) is fixedly installed on one side of the outer wall of the mounting bracket (8).
4. The solvent-based waste solvent recovery and treatment device according to claim 1, characterized in that, A feed pipe (6) is installed on one side of the top of the processing tank (10), and the feed pipe (6) extends to the outside of the processing box (2). A discharge pipe (12) is provided on one side of the bottom of the processing tank (10), and the discharge pipe (12) extends to the outside of the bottom of the processing box (2). A valve (13) is provided on the discharge pipe (12).
5. The solvent-based waste solvent recovery and treatment device according to claim 1, characterized in that, The top of the treatment tank (10) is equipped with a water collection pipe (11), and the bottom of the water collection pipe (11) is provided with equally spaced water spray holes (20). The top of the water collection pipe (11) is connected to a water supply pipe (15), which extends to the outside of the treatment box (2).
6. The solvent-based waste solvent recovery and treatment device according to claim 5, characterized in that, The treatment tank (10) has an installation port on its top, and the water collection pipe (11) is fixedly connected to the inner wall of the installation port. The treatment box (2) has a through hole on one side, and the water delivery pipe (15) is installed on the inner wall of the through hole.
7. The solvent-based waste solvent recovery and treatment device according to claim 1, characterized in that, A condenser (3) is installed on the top of the processing tank (2), and a steam filter (4) is installed on one side of the top of the processing tank (2). A connecting pipe (5) is connected to the condenser (3), and the connecting pipe (5) is connected to the steam filter (4). A steam collection port (14) is provided on the top of the processing tank (10), and the steam collection port (14) is connected to the condenser (3) through a pipe.