Plate washing solvent recovery device

Abstract

The utility model provides a plate washing solvent recovery device which comprises a vacuum pump, a distillation still, a connecting pipe, a condensation pipe and a liquid discharge pipe, the vacuum pump is connected with the distillation still through a vacuum pipe, the condensation pipe is connected with the top of the distillation still through the connecting pipe, the liquid discharge pipe is connected with a liquid discharge port of the condensation pipe, and the distillation still comprises an upper still body, a lower still body and a heating base. The bottom of the upper kettle body is open, an upper annular connecting plate is arranged on the outer wall of the upper kettle body, the top of the lower kettle body is open, and an annular mounting groove corresponding to the kettle wall of the upper kettle body is formed in the kettle wall of the lower kettle body; the distillation kettle adopts a combined structure of the upper kettle body and the lower kettle body, so that impurity solids formed by concentration are retained in the lower kettle body, the impurity solids can be treated after the lower kettle body is detached, and a new lower kettle body is replaced, so that the subsequent recovery of the distillation kettle is not influenced, and the recovery efficiency of the plate washing solvent is improved.

Description

Technical Field

[0001] The utility model relates to the field of plate-washing solvent recovery, in particular to a plate-washing solvent recovery device. Background Art

[0002] In the printing industry, a large amount of solvent waste liquid is generated during the plate washing process. If these waste liquids are not properly handled, they will not only cause waste of resources but also pollute the environment.

[0003] Existing solvent recovery methods generally use distillation technology to separate the volatile components in the solvent from the solution, and condense and recover them. However, the plate washing solvent contains flexographic residues or other foreign matter. During the distillation and heating process, the solvent will evaporate for recovery, and the flexographic residues or other foreign matter will gradually condense during the heating process to form impurity solids, which will remain at the bottom of the distillation kettle and are difficult to clean, affecting the subsequent plate washing solvent recovery. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] In order to solve the above problems in the prior art, the utility model provides a plate washing solvent recovery device.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0008] A plate-washing solvent recovery device comprises a vacuum pump, a distillation kettle, a connecting pipe, a condenser pipe and a drain pipe;

[0009] The vacuum pump is connected to the distillation kettle via a vacuum tube;

[0010] The condenser is connected to the top of the distillation kettle through the connecting pipe;

[0011] The drain pipe is connected to the drain port of the condenser pipe;

[0012] The distillation kettle comprises an upper kettle body, a lower kettle body and a heating base;

[0013] The bottom of the upper kettle body is open, and the outer wall of the upper kettle body is provided with an upper annular connecting plate;

[0014] The top of the lower kettle body is open, and the kettle wall of the lower kettle body is provided with an annular mounting groove corresponding to the kettle wall of the upper kettle body, and the outer wall of the top opening of the lower kettle body is provided with a lower annular connecting plate, and a sealing groove is provided on the lower annular connecting plate. After the upper kettle body is installed in the annular mounting groove of the lower kettle body, the upper annular connecting plate and the lower annular connecting plate are butted and fixedly connected by bolts;

[0015] The heating base is arranged at the bottom of the lower kettle body.

[0016] Preferably, annular grooves are provided on both sides of the inner wall of the annular mounting groove, and sealing rings are installed in the annular grooves.

[0017] Preferably, the heating base includes an electric heating plate, an L-shaped limiting plate and a support leg. The L-shaped limiting plate is provided in multiple groups and is arranged around the electric heating plate. The vertical part of the L-shaped limiting plate is fixedly connected to the electric heating plate, and the support leg is installed at the bottom of the horizontal part of the L-shaped limiting plate.

[0018] Preferably, the condensation temperature of the condenser is 25-40°.

[0019] Preferably, a throttle valve is installed on the vacuum tube.

[0020] Preferably, it further comprises a fixing bracket, wherein the fixing bracket comprises a vertical pole, a first limiting ring and a second limiting ring;

[0021] The vertical pole is vertically arranged on the top of the distillation kettle, the first limiting ring and the second limiting ring are respectively arranged on both sides of the vertical pole, the connecting pipe is installed in the first limiting ring, the condensing pipe is installed in the second limiting ring, and the connecting pipe and the condensing pipe are connected by a bend pipe.

[0022] Preferably, a feed port is provided on the top of the distillation kettle.

[0023] (3) Beneficial effects

[0024] The beneficial effects of the present invention are:

[0025] The distillation kettle adopts a combined structure of an upper kettle body and a lower kettle body, so that the impurity solids formed by concentration are retained in the lower kettle body. The lower kettle body can be disassembled to process the impurity solids and replaced with a new lower kettle body without affecting the subsequent recovery of the distillation kettle, thereby improving the recovery efficiency of the plate washing solvent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a plate-washing solvent recovery device;

[0027] Figure 2 It is a structural schematic diagram of a distillation kettle;

[0028] Figure 3 Schematic diagram of the explosion structure of the distillation kettle.

[0029] Description of reference numerals:

[0030] 1. Distillation kettle;

[0031] 11. Upper kettle body; 12. Lower kettle body; 13. Heating base; 14. Upper annular connecting plate; 15. Lower annular connecting plate; 16. Sealing ring; 17. Annular mounting groove; 131. L-shaped limit plate; 132. Electric heating plate; 133. Support foot;

[0032] 2. Vacuum pump;

[0033] 3. Throttle valve;

[0034] 4. Connecting pipe;

[0035] 5. Condensation tube;

[0036] 6. Drain pipe. DETAILED DESCRIPTION

[0037] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0038] Please refer to Figures 1 to 3 The utility model provides a plate washing solvent recovery device, comprising a vacuum pump 2, a distillation kettle 1, a connecting pipe 4, a condenser pipe 5 and a drain pipe 6;

[0039] The vacuum pump 2 is connected to the distillation kettle 1 through a vacuum tube;

[0040] The condenser 5 is connected to the top of the distillation kettle 1 through the connecting pipe 4;

[0041] The drain pipe 6 is connected to the drain port of the condenser pipe 5;

[0042] The distillation kettle 1 includes an upper kettle body 11, a lower kettle body 12 and a heating base 13;

[0043] The bottom of the upper kettle body 11 is open, and an upper annular connecting plate 14 is provided on the outer wall of the upper kettle body 11;

[0044] The top of the lower kettle body 12 is open, and the kettle wall of the lower kettle body 12 is provided with an annular mounting groove 17 corresponding to the kettle wall of the upper kettle body 11, and a lower annular connecting plate 15 is provided on the outer wall of the top opening of the lower kettle body 12. A sealing groove begins on the lower annular connecting plate 15. After the upper kettle body 11 is installed in the annular mounting groove 17 of the lower kettle body 12, the upper annular connecting plate 14 and the lower annular connecting plate 15 are docked and fixedly connected by bolts;

[0045] The heating base 13 is arranged at the bottom of the lower kettle body 12;

[0046] During use, the plate washing solvent to be recovered is injected into the distillation kettle 1, and then the interior of the distillation kettle 1 is evacuated by the vacuum pump 2, and the heating base 13 heats the distillation kettle 1. The volatile components of the plate washing solvent are separated from the solution and enter the condenser 5 through the connecting pipe 4. After being re-condensed into liquid through the condenser 5, it is discharged from the drain pipe 6 to achieve recovery. The distillation kettle 1 adopts a combined structure of an upper kettle body 11 and a lower kettle body 12, so that the impurity solids formed by concentration are retained in the lower kettle body 12. The lower kettle body 12 can be disassembled to process the impurity solids, and a new lower kettle body 12 can be replaced without affecting the subsequent recovery of the distillation kettle 1, thereby improving the recovery efficiency of the plate washing solvent.

[0047] In this embodiment, annular grooves are provided on both sides of the inner wall of the annular mounting groove 17. A sealing ring 16 is installed in the annular groove. The design of the annular groove and the sealing ring 16 can improve the sealing performance of the upper kettle body 11 and the lower kettle body 12 after they are combined.

[0048] In this embodiment, the heating base 13 includes an electric heating plate 132, an L-shaped limiting plate 131 and a support leg 133. The L-shaped limiting plate 131 is provided in multiple groups and is arranged around the electric heating plate 132. The vertical part of the L-shaped limiting plate 131 is fixedly connected to the electric heating plate 132. The support leg 133 is installed at the bottom of the horizontal part of the L-shaped limiting plate 131. The vertical part extending upward from the L-shaped limiting plate 131 is conducive to limiting the lower kettle body 12, so that the lower kettle body 12 can be in the effective heating position of the electric heating plate 132, while preventing the lower kettle body 12 from separating from the electric heating plate 132.

[0049] In this embodiment, the condensation temperature of the condenser 5 is 25-40°, ensuring that the recovered medicine is in liquid form.

[0050] In this embodiment, a throttle valve 3 is installed on the vacuum tube. The setting of the throttle valve 3 is beneficial to increasing the vacuum pressure of the distillation kettle 1.

[0051] In this embodiment, a fixing bracket is further included, and the fixing bracket includes a vertical rod, a first limiting ring and a second limiting ring;

[0052] The vertical pole is vertically arranged on the top of the distillation kettle 1, the first limiting ring and the second limiting ring are respectively arranged on both sides of the vertical pole, the connecting pipe 4 is installed in the first limiting ring, and the condensing pipe 5 is installed in the second limiting ring. The connecting pipe 4 and the condensing pipe 5 are connected by a bend pipe.

[0053] In this embodiment, a feed port is provided on the top of the distillation kettle 1.

[0054] The working principle of this utility model is as follows:

[0055] The plate washing solvent to be recovered is injected into the distillation kettle 1, and then the interior of the distillation kettle 1 is evacuated by the vacuum pump 2. The heating base 13 heats the distillation kettle 1, and the volatile components of the plate washing solvent are separated from the solution and enter the condenser 5 through the connecting pipe 4. After being re-condensed into liquid through the condenser 5, it is discharged from the drain pipe 6 to achieve recovery. The distillation kettle 1 adopts a combined structure of an upper kettle body 11 and a lower kettle body 12, so that the concentrated impurity solids are retained in the lower kettle body 12. The lower kettle body 12 can be disassembled to process the impurity solids, and a new lower kettle body 12 can be replaced without affecting the subsequent recovery of the distillation kettle 1, thereby improving the recovery efficiency of the plate washing solvent.

[0056] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0057] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A plate washing solvent recovery device, characterized in that: Including vacuum pump, distillation kettle, connecting pipe, condenser and drain pipe; The vacuum pump is connected to the distillation kettle via a vacuum tube; The condenser is connected to the top of the distillation kettle through the connecting pipe; The drain pipe is connected to the drain port of the condenser pipe; The distillation kettle comprises an upper kettle body, a lower kettle body and a heating base; The bottom of the upper kettle body is open, and the outer wall of the upper kettle body is provided with an upper annular connecting plate; The top of the lower kettle body is open, and the kettle wall of the lower kettle body is provided with an annular mounting groove corresponding to the kettle wall of the upper kettle body, and the outer wall of the top opening of the lower kettle body is provided with a lower annular connecting plate, and a sealing groove is provided on the lower annular connecting plate. After the upper kettle body is installed in the annular mounting groove of the lower kettle body, the upper annular connecting plate and the lower annular connecting plate are butted and fixedly connected by bolts; The heating base is arranged at the bottom of the lower kettle body.

2. A plate-washing solvent recovery device according to claim 1, characterized in that: Annular grooves are arranged oppositely on both sides of the inner wall of the annular installation groove, and sealing rings are installed in the annular grooves.

3. A plate-washing solvent recovery device according to claim 1, characterized in that: The heating base includes an electric heating plate, an L-shaped limiting plate and a supporting leg. The L-shaped limiting plate is provided in multiple groups and is arranged around the electric heating plate. The vertical part of the L-shaped limiting plate is fixedly connected to the electric heating plate, and the supporting leg is installed at the bottom of the horizontal part of the L-shaped limiting plate.

4. A plate-washing solvent recovery device according to claim 1, characterized in that: The condensation temperature of the condenser is 25-40°.

5. A plate-washing solvent recovery device according to claim 1, characterized in that: A throttle valve is installed on the vacuum tube.

6. A plate-washing solvent recovery device according to claim 1, characterized in that: It also includes a fixing bracket, which includes a vertical rod, a first limiting ring and a second limiting ring; The vertical pole is vertically arranged on the top of the distillation kettle, the first limiting ring and the second limiting ring are respectively arranged on both sides of the vertical pole, the connecting pipe is installed in the first limiting ring, the condensing pipe is installed in the second limiting ring, and the connecting pipe and the condensing pipe are connected by a bend pipe.

7. A plate-washing solvent recovery device according to claim 1, characterized in that: A feed port is provided on the top of the distillation kettle.

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