Distillation retort for separating and recycling waste solvent in coating industry

Abstract

The utility model discloses a distillation retort for separating and recovering a waste solvent in the coating industry, which relates to the technical field of coating waste solvent recovery equipment and comprises a heat preservation shell, an outer shell is arranged in the heat preservation shell, an inner container is arranged in the outer shell, and an annular plate connected with the heat preservation shell is arranged at the top of the outer shell. Through the use of the high-temperature-resistant solvent bag, the high-temperature-resistant solvent bag can be used for treating residues generated after the waste solvent is separated and recycled, so that the situation that the residues are adhered to the inner wall of the inner container and are not easy to clean is avoided, and manual cleaning, harm to human health and use of a fixing mechanism are avoided; the high-temperature-resistant solvent bag can be conveniently mounted and dismounted, cannot be blocked by one end of the feeding opening, can be quickly dismounted and mounted, is convenient to remove and clean, and is convenient to use and higher in practicability; and through the arrangement of the baffle plates, a roundabout channel can be formed, so that the smoke residence time is prolonged, and the heating effect on the inner container is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating waste solvent recovery equipment, in particular to a distillation tank used for separating and recovering waste solvents in the coating industry. Background Art

[0002] Waste solvents usually refer to those solvents that have been used and have lost their effectiveness, or some solvents that have not reacted completely during chemical reactions. Waste solvents are generally mixed solvents; in human production and life, because the amount of waste solvents generated is very large, it is often necessary to use different physical and chemical methods to recycle and treat waste solvents to achieve waste utilization. Waste solvents are generated in the coating industry. In the coating process, the solvent-based coating agents used contain a large amount of organic solvents, such as ethyl acetate, dimethylformamide (DMF), butanone (MEK), toluene (Tol), etc. These solvents will produce waste gas during the volatilization process, which poses a threat to the environment and human health. Therefore, they need to be separated and recycled using recycling equipment.

[0003] At present, the waste solvents generated by the coating industry are usually treated by finding a manufacturer specializing in the treatment of waste solvents for centralized treatment, but this method is expensive; another method is to use a distillation tank to heat the waste solution to evaporate it, and then condense the evaporated waste solution vapor and collect it for treatment; and the equipment for the above-mentioned treatment methods such as heating, evaporation and condensation is relatively large in size, and the residue generated by distillation in the distillation tank after distillation will adhere to the bottom of the tank, making it difficult to clean, and the residue has a lot of odor, and manual cleaning will cause great harm to the human body, and its practicality is relatively poor. Utility Model Content

[0004] The purpose of the utility model is to provide a distillation tank for separating and recovering waste solvents in the coating industry, so as to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a distillation tank for separating and recovering waste solvents in the coating industry, comprising an insulation shell, an outer shell provided in the insulation shell, an inner liner provided in the outer shell, a ring plate connected to the insulation shell provided on the top of the outer shell, and an opening adapted to the ring plate provided on the top of the insulation shell, a tank cover provided on the top of the insulation shell, a steam outlet and a pressure relief port penetrating the top of the insulation shell are respectively provided at symmetrical positions on the left side of the insulation shell, and one end of the steam outlet and the pressure relief port both penetrate the ring plate, a feeding port penetrating the top of the insulation shell is provided on the right side of the insulation shell, and one end of the feeding port penetrates the ring plate, a high-temperature resistant solvent bag is provided on the inner side of the inner liner, and the open end of the high-temperature resistant solvent bag is connected to a fixing mechanism, and a smoke outlet and a smoke inlet connected to the outer shell are respectively provided on the upper and lower sides of one side of the insulation shell.

[0006] The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip, and the bottom end face of said toothed connecting strip is connected with said toothed connecting strip respectively.

[0007] Furthermore, the connecting assembly includes a fixed block, a second slide groove is provided on one side of the interior of the fixed block, a second spring is provided in the second slide groove, a rail groove connected to the second slide groove is provided on one side of the top of the fixed block, a slider second is provided for sliding in the second slide groove and the rail groove, and the slider second is fixedly connected to one end of the second spring, the second slider and the first slider are both convex, the second slider is connected to the side away from the second spring, and one end of the slider is inserted into the socket provided on the inner wall of the ring plate, the plug block has an inclined surface on the ground at one end, and a handle is provided on the top of the fixed block to connect, fix or split the mounting frame and the ring plate.

[0008] Furthermore, a plurality of baffles are provided on the upper and lower sides of the outer wall of the inner liner on the inner side of the outer shell, and the plurality of baffles are located above the smoke inlet, and the smoke outlet is located between the two uppermost adjacent baffles. A notch is provided at one end of each baffle, and the notches of the two adjacent baffles are staggered left and right to guide the smoke and extend the time that the smoke flows between the inner liner and the outer shell, thereby better heating the inner liner.

[0009] Furthermore, several fixing seats are symmetrically provided on the top of the insulation shell, a threaded column is hinged on the inner side of the fixing seat, and a nut ring with a threaded connection is matched with the upper end of the threaded column. Several threaded columns that are compatible with the threaded columns are symmetrically provided on the outer wall of the tank cover, and a slot that is compatible with the nut ring is opened on the top of the limit seat to facilitate the installation and fixation of the tank cover.

[0010] Furthermore, the mounting frame has the same shape as the deflector, and the tough strips and the tough sheets are both metal structures, so that the tough strips and the tough sheets can bend and deform when subjected to force, thereby avoiding one end of the feed port when the tough strip is in a bent state.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model uses a high-temperature resistant solvent bag to process the residue generated after the waste solvent is separated and recovered, thereby preventing the residue from adhering to the inner wall of the liner, making it difficult to clean, and avoiding manual cleaning that endangers human health. The use of the fixing mechanism facilitates the installation and removal of the high-temperature resistant solvent bag, and will not be blocked by one end of the feeding port. The high-temperature resistant solvent bag can be quickly disassembled and removed for cleaning, making it easy to use and more practical.

[0013] 2. The utility model can form a circuitous channel by setting the baffle, thereby prolonging the smoke retention time and improving the heating effect on the inner tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0015] Figure 2 It is a schematic diagram of the partial cross-sectional structure between the insulation shell, outer shell and inner liner of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure between the baffle and the inner liner of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure between the mounting frame, the high temperature resistant solvent bag and the toughness strip of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure between the slider 1, the spring 1 and the mounting bracket of the utility model;

[0019] Figure 6 This utility model Figure 5 Schematic diagram of the enlarged structure of A in the figure.

[0020] Numbers in the figure: 1. Insulation shell; 2. Outer shell; 3. Inner liner; 4. Tank cover; 5. Ring plate; 6. Fixed seat; 7. Threaded column; 8. Nut eye; 9. Limit seat; 10. Feeding port; 11. Steam outlet; 12. Pressure relief port; 13. Baffle; 14. High-temperature resistant solvent bag; 15. Mounting frame; 16. Tough strip; 17. Tough sheet; 18. Slider 1; 19. Spring 1; 20. Fixed column; 21. Bolt; 22. Fixed block; 23. Slider 2; 24. Spring 2; 25. Insert block; 26. Slide 1; 27. Slide 2. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example: Figure 1 - Figure 6As shown, the utility model provides a technical solution: a distillation tank for separating and recovering waste solvents in the coating industry, comprising an insulation shell 1, an outer shell 2 is provided in the insulation shell 1, an inner liner 3 is provided in the outer shell 2, a ring plate 5 connected to the insulation shell 1 is provided on the top of the outer shell 2, and an opening adapted to the ring plate 5 is opened on the top of the insulation shell 1, a tank cover 4 is provided on the top of the insulation shell 1, a steam outlet 11 and a pressure relief port 12 penetrating the top of the insulation shell 1 are respectively provided at symmetrical positions on the left side of the insulation shell 1, and one end of the steam outlet 11 and the pressure relief port 12 both penetrate the ring plate 5, a feeding port 10 penetrating the top of the insulation shell 1 is provided on the right side of the insulation shell 1, and one end of the feeding port 10 penetrates the ring plate 5, a high-temperature resistant solvent bag 14 is provided on the inside of the inner liner 3, and the open end of the high-temperature resistant solvent bag 14 is connected to a fixing mechanism, and a smoke outlet and a smoke inlet connected to the outer shell 2 are respectively provided on the upper and lower sides of one side of the insulation shell 1. In this example, the fixing mechanism also includes a mounting frame 15, and a slide groove 26 is symmetrically opened on the top of one side of the mounting frame 15. A slider 18 is slidably installed in the slide groove 26, and a spring 19 is connected to one side of the slider 18. The top of the slider 18 is connected to a fixed column 20 above the mounting frame 15. A toughness bar 16 is provided between the two fixed columns 20, and the two ends of the toughness bar 16 are respectively rotatably sleeved on the outside of the two fixed columns 20. A toughness sheet 17 is connected to the bottom of the toughness bar 16. The outer wall of the upper end of the high-temperature resistant solvent bag 14 is fixedly connected to the inner wall of the mounting frame 15 and one side wall of the toughness bar 16, respectively. The top of the fixed column 20 is threadedly connected with a bolt 21, and the lower end of the bolt 21 passes through the slider 18. Two threaded holes are provided on the inner bottom surface of the slide groove 26. A connecting component is provided on the top of the mounting frame 15. The setting of the fixing mechanism can facilitate the installation of the high-temperature resistant solvent bag 14, and will not be hindered by the part of the pipeline extending from the feeding port 10 to the inside of the inner liner 3. The high-temperature resistant solvent bag 14 can be installed, fixed and disassembled, making it convenient to install the high-temperature resistant solvent bag 14 to the inside of the inner liner 3 or disassemble it to clean the collected residue, and can avoid damage to it caused by manual cleaning, which is more practical. In this example, the connecting component includes a fixed block 22, a second slide groove 27 is opened on one side of the interior of the fixed block 22, a second spring 24 is arranged in the second slide groove 27, a rail groove connected to the second slide groove 27 is opened on one side of the top of the fixed block 22, a slider 23 is slidingly arranged in the second slide groove 27 and the rail groove, and the slider 23 is fixedly connected to one end of the spring 24, the slider 23 and the slider 18 are both convex, and the slider 23 is connected to the side away from the spring 24 with an insert block 25, and one end of the insert block 25 is inserted into the socket opened on the inner wall of the ring plate 5, and an inclined surface is provided on the ground at one end of the insert block 25, and a handle is provided on the top of the fixed block 22 to connect or split the mounting frame 15 and the ring plate 5.In this example, a number of baffles 13 are distributed and sleeved on the upper and lower sides of the outer wall of the inner liner 3 on the inner side of the outer shell 2, and the baffles 13 are located above the smoke inlet, and the smoke outlet is located between the two adjacent baffles 13 at the top. A notch is provided at one end of the baffle 13, and the notches of the two adjacent baffles 13 are staggered left and right to guide the smoke and extend the time that the smoke flows between the inner liner 3 and the outer shell 2, thereby better heating the inner liner 3.

[0023] In this example, a plurality of fixing seats 6 are symmetrically provided on the top of the insulation shell 1. A threaded column 7 is hinged on the inner side of the fixing seat 6. A nut hanging ring 8 is provided on the upper end of the threaded column 7. A plurality of threaded columns 7 that match the threaded columns 7 are symmetrically provided on the outer wall of the tank cover 4. A slot that matches the nut hanging ring 8 is provided on the top of the limiting seat 9 to facilitate the installation and fixation of the tank cover 4. In this example, the mounting frame 15 is the same shape as the baffle 13. The toughness bar 16 and the toughness sheet 17 are both metal structures so that the toughness bar 16 and the toughness sheet 17 can bend and deform when subjected to force, so that when the toughness bar 16 is in a bent state, it avoids one end of the feeding port 10.

[0024] The working principle of the present invention is as follows: before the equipment is put into operation, the tank cover 4 is opened, and the high-temperature resistant solvent bag 14 is installed in the inner tank 3. Then, the waste solvent is poured into the high-temperature resistant solvent bag 14 or pumped in from the feeding port 10, and the tank cover 4 is closed; the waste heat flue gas of the boiler enters the bottom of the distillation tank from the flue gas inlet, so that it enters the space between the outer shell 2 and the inner tank 3, passes through the baffle 13 and surrounds the inner tank 3 and is discharged upward from the flue gas outlet. The waste heat flue gas heats the inner tank 3, and the waste solvent evaporates after being heated, is discharged from the steam outlet 11 and transported to the rear-end collection equipment; and after the solvent evaporates, the inlet waste heat flue gas is cut off, and after cooling, the tank cover 4 is opened, and the high-temperature resistant solvent bag 1 is taken out. 4, replace it with a new one; and when installing the high-temperature resistant solvent bag 14 through the mounting bracket 15, the position of the toughness strip 16 can be aligned with the feeding port 10, and then the mounting bracket 15 is placed on the top of the liner 3, and while placing it, the top surface of the ring plate 5 will squeeze the inclined surface on the push plug 25, pushing it to move, and the plug 25 drives the slider 23 to slide and squeeze the spring 24 until the plug 25 moves to the inside of the ring plate 5, until the mounting bracket 15 is placed on the top of the liner 3, at this time, the slider 23 will drive the plug 25 to reset under the elastic force of the spring 24, so that one end of the plug 25 is inserted into the jacking hole opened on the inner wall of the ring plate 5, thereby completing the limiting of the mounting bracket 15 The screw thread of the mounting bracket 15 is fixed by the screw thread of the mounting bracket 15, and then the ... 0, and then use the bolt 21 to connect with the threaded groove opened in the slide 1 26, so as to restrict and fix the slider 18, and the installation and fixation of the high-temperature resistant solvent bag 14 can be completed, making it convenient to install. When disassembling and removing the high-temperature resistant solvent bag 14, the above operation can be repeated in reverse to restore the toughness strip 16 to its initial state when installed. Then, hold the handle and use the middle finger to pull the upper end of the slider 2 23 on one side to drive the insert block 25 out of the socket, so that the handle can be pulled up to drive the mounting frame 15 and then the high-temperature resistant solvent bag 14 can be taken out, which is convenient for the treatment of the residue after the waste solution is treated and avoids the occurrence of manual cleaning that is harmful to human health. It is easy to use and more practical.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A distillation tank for separating and recovering waste solvents in the coating industry, comprising an insulating shell (1), characterized in that: The heat-insulating shell (1) is provided with an outer shell (2), an inner liner (3) is provided in the outer shell (2), a ring plate (5) connected to the heat-insulating shell (1) is provided on the top of the outer shell (2), and an opening adapted to the ring plate (5) is opened on the top of the heat-insulating shell (1), a tank cover (4) is provided on the top of the heat-insulating shell (1), and a steam outlet (11) and a pressure relief port (12) penetrating the top of the heat-insulating shell (1) are provided at symmetrical positions on the left side of the heat-insulating shell (1), and the steam outlet (11) and the pressure relief port (12) are provided at the top of the heat-insulating shell (1). One end of the opening (11) and the pressure relief opening (12) both pass through the ring plate (5); a feeding opening (10) passing through the top of the insulation shell (1) is provided on the right side of the insulation shell (1), and one end of the feeding opening (10) passes through the ring plate (5); a high-temperature resistant solvent bag (14) is provided on the inner side of the liner (3), and the open end of the high-temperature resistant solvent bag (14) is connected to a fixing mechanism; a smoke outlet and a smoke inlet connected to the outer shell (2) are respectively provided on the upper and lower sides of one side of the insulation shell (1).

2. A distillation tank for separation and recovery of waste solvents in coating industry according to claim 1, characterized in that: The fixing mechanism also includes a mounting frame (15), a sliding groove (26) is symmetrically provided on the top of one side of the mounting frame (15), a slider (18) is slidably installed in the sliding groove (26), a spring (19) is connected to one side of the slider (18), the top of the slider (18) is connected to a fixing column (20) above the mounting frame (15), a toughness bar (16) is provided between the two fixing columns (20), and the two ends of the toughness bar (16) are respectively rotatably sleeved on the outside of the two fixing columns (20), the bottom of the toughness bar (16) is connected to a tough piece (17), the outer wall of the upper end of the high-temperature resistant solvent bag (14) is fixedly connected to the inner wall of the mounting frame (15) and the side wall of the toughness bar (16), the top of the fixing column (20) is threadedly connected with a bolt (21), and the lower end of the bolt (21) passes through the slider (18), the inner bottom surface of the sliding groove (26) is provided with two threaded holes, and the top of the mounting frame (15) is provided with a connecting component.

3. The distillation tank for separating and recovering waste solvents in the coating industry according to claim 2, characterized in that: The connecting assembly includes a fixed block (22), a second slide groove (27) is provided on one side of the interior of the fixed block (22), a second spring (24) is provided in the second slide groove (27), a rail groove connected to the second slide groove (27) is provided on one side of the top of the fixed block (22), a second slider (23) is provided for sliding in the second slide groove (27) and the rail groove, and the second slider (23) is fixedly connected to one end of the second spring (24), the second slider (23) and the first slider (18) are both convex, the second slider (23) is connected to the side away from the second spring (24) with an insert block (25), and one end of the insert block (25) is inserted into the jacking hole provided on the inner wall of the ring plate (5), one end of the insert block (25) is provided with an inclined surface on the ground, and a handle is provided on the top of the fixed block (22).

4. The distillation tank for separating and recovering waste solvents in the coating industry according to claim 2, characterized in that: The outer wall of the inner liner (3) is provided with a plurality of baffles (13) distributed and sleeved on the inner side of the outer shell (2), and the plurality of baffles (13) are located above the smoke inlet, and the smoke outlet is located between the two uppermost adjacent baffles (13). A notch is provided at one end of each baffle (13), and the notches of two adjacent baffles (13) are arranged in a left-right staggered distribution.

5. The distillation tank for separating and recovering waste solvents in the coating industry according to claim 1, characterized in that: The top of the heat-insulating shell (1) is symmetrically provided with a plurality of fixing seats (6), the inner side of the fixing seats (6) is hinged with a threaded column (7), the upper end of the threaded column (7) is matched with a nut hanging ring (8) connected by thread, the outer wall of the tank cover (4) is symmetrically provided with a plurality of threaded columns (7) adapted to the threaded columns (7), and the top of the limiting seat (9) is provided with a slot adapted to the nut hanging ring (8).

6. The distillation tank for separating and recovering waste solvents in the coating industry according to claim 4, characterized in that: The mounting frame (15) has the same shape as the baffle (13), and the toughness strip (16) and the toughness sheet (17) are both metal structures.

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