Recovery device for cleaning solvents

Abstract

The application provides a recycling device of cleaning solvent, which comprises a filter box, a coaming fixedly connected to the upper end surface of the filter box, a filter plate installed at the bottom of the coaming inner cavity, a support ring fixedly connected to the upper portion of the filter box inner cavity wall, a filter device installed on the upper end surface of the support ring, a separation box fixedly connected to the right side of the filter box, a stirring box fixedly connected to the top end surface of the separation box inner cavity, a liquid delivery pipe fixedly connected to the middle portion of the right end surface of the filter box, the liquid delivery pipe extending through to the inside of the stirring box, a stirring device arranged in the stirring box inner cavity, an air extraction pipe fixedly connected to the upper portion of the right side of the stirring box, an air extraction pump fixedly connected to the upper portion of the right end surface of the separation box, the air extraction pipe being fixedly connected to the air extraction pump at the tail end, a condenser pipe fixedly connected to the tail end of the air extraction pump gas outlet, a recovery box fixedly connected to the lower portion of the right end surface of the separation box, and the condenser pipe being fixedly and continuously connected to the upper portion of the recovery box at the tail end, which has the advantages of simple structure, convenient operation and effective resource saving.

Description

Technical Field

[0001] This disclosure specifically discloses a cleaning solvent technology field, specifically relating to a cleaning solvent recycling device. Background Technology

[0002] Cleaning solvents are a broad category with many types, broadly categorized into inorganic and organic cleaning agents. Simply put, the difference between organic and inorganic cleaning agents is that organic cleaning agents are made from carbon-containing compounds, while inorganic cleaning agents are made from non-carbon-containing compounds; therefore, they belong to the inorganic category. There are many methods for classifying cleaning agents, varying from country to country. We generally classify them into three main categories: aqueous, semi-aqueous, and non-aqueous cleaning agents. According to application number 201020112084.5, a device for recovering organic solvents during PCB screen printing is disclosed, including a cleaning table with a cleaning tank inside. An inclined surface of the cleaning table is located outside the cleaning tank, and a recovery hole is provided on the inclined surface, which communicates with the cleaning tank. This invention utilizes a perimeter welded to a certain height around the cleaning table, with the side of the cleaning table having a certain slope and an organic solvent recovery hole at its lowest point. The organic waste solvent from the cleaning process is introduced into a recovery tank via a pipe connection, and then the organic solvent is recovered from the wastewater through sedimentation and filtration. Existing recycling devices only have filter plates, which cannot be replaced, resulting in the inability to separate cleaning solvents from wastewater. Furthermore, existing recycling devices cannot further filter and clean the cleaning solvents, leading to a large waste of solvents and losses. Therefore, we propose a cleaning solvent recycling device. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a filterable and distillable structure.

[0004] A solvent recovery and recycling device includes a filter box. A surrounding plate is fixedly connected to the upper surface of the filter box. A filter plate is installed at the bottom of the inner cavity of the surrounding plate. A support ring is fixedly connected to the upper part of the inner wall of the filter box. A filter device is installed on the upper surface of the support ring. A separation box is fixedly connected to the right side of the filter box. A stirring box is fixedly connected to the top surface of the inner cavity of the separation box. A liquid infusion pipe is fixedly connected to the middle of the right end face of the filter box. The end of the liquid infusion pipe extends through into the interior of the stirring box. A stirring device is installed in the inner cavity of the stirring box. An air extraction pipe is fixedly connected to the upper right side of the stirring box. An air pump is fixedly connected to the upper right end face of the separation box. An air pump is fixedly connected to the end of the air extraction pipe. A condenser pipe is fixedly connected to the end of the air pump outlet. A recovery box is fixedly connected to the lower right end face of the separation box. The end of the condenser pipe is fixedly connected to the upper part of the recovery box.

[0005] According to the technical solution provided in the embodiments of this application, the filtration device includes a filter screen, a quartz filter layer and an activated carbon filter layer. The filter screen is installed on the upper end face of the support ring, the activated carbon filter layer is installed on the bottom end face of the inner cavity of the filter screen, and the quartz filter layer is installed on the upper end face of the activated carbon filter layer.

[0006] According to the technical solution provided in the embodiments of this application, the stirring device includes a drive motor, a rotating rod and a stirring rod. The drive motor is fixedly connected to the middle of the upper end face of the separation box. The motor shaft of the drive motor extends through to the inner cavity of the stirring box and is fixedly connected to the rotating rod. The stirring rod is uniformly fixedly connected to the outer wall of the rotating rod.

[0007] According to the technical solution provided in the embodiments of this application, a heating wire is fixedly connected to the outer wall of the mixing tank, and the heating wire is spiral in shape.

[0008] According to the technical solution provided in the embodiments of this application, a water inlet pipe is fixedly connected to the front left side of the upper end face of the separation box, and the water inlet pipe is connected to the separation box.

[0009] According to the technical solution provided in the embodiments of this application, the condenser tube has a continuous S-shaped structure.

[0010] In summary, this application discloses a device for recycling cleaning solvents.

[0011] Beneficial effects: 1. Through the filter plate, support ring, filter device and filter box, the filter plate can block larger impurities and prevent them from entering the solvent. The quartz filter layer can filter out fine impurities in the solvent. The activated carbon filter layer adsorbs harmful substances in the solvent. The sedimentation in the filter box ensures that the solvent reaches a relatively clear state, reducing the pressure of subsequent heating and improving efficiency.

[0012] 2. The solvent is rapidly heated by the rotation of the stirring rod and the heating wire via the water inlet pipe, stirring tank, heating wire, vacuum pipe, extraction pump, and condenser. This accelerates the evaporation rate of the solvent. The vacuum pump is then activated, and the vapor from the solvent evaporation inside the stirring tank is drawn through the vacuum pipe. The vapor enters the condenser through the exhaust port, where it is pre-cooled and condensed. The condensed solvent then enters the recovery tank through the other end of the condenser for storage, ensuring that the condensed solvent is clear and thus completing the solvent recovery and saving resources. Attached Figure Description

[0013] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the solvent recovery and recycling device in this application; Figure 2This is a cross-sectional schematic diagram of the cleaning solvent recovery and utilization device in this application; Figure 3 This is a schematic diagram of the filter device structure in this application.

[0014] In the diagram: 1. Filter box; 2. Enclosure; 3. Filter plate; 4. Separation box; 5. Infusion pipe; 6. Water inlet pipe; 7. Stirring device; 71. Drive motor; 72. Rotating rod; 73. Stirring rod; 8. Air pump; 9. Filtering device; 91. Filter screen; 92. Quartz filter layer; 93. Activated carbon filter layer; 10. Condenser; 11. Recovery box; 12. Support ring; 13. Stirring box; 14. Heating wire; 15. Air extraction pipe. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] As mentioned in the background section, existing recovery devices only have filter plates, which cannot be replaced, resulting in the inability to separate the cleaning solvent from the wastewater. Furthermore, existing recovery devices cannot further filter and clean the cleaning solvent, leading to a large waste of solvent and losses. This disclosure proposes a filterable and distillable structure.

[0018] Example 1 Please see Figure 1 The solvent recovery and recycling device includes a filter box 1, which is a rectangular empty box. A baffle plate 2 is fixedly connected to the upper end face of the filter box 1, and the baffle plate 2 is funnel-shaped to facilitate cleaning of the workpiece. A filter plate 3 is installed at the bottom of the inner cavity of the baffle plate 2. In order to further filter the cleaning solvent, a support ring 12 is fixedly connected to the upper part of the inner wall of the inner cavity of the filter box 1. A filter device 9 is installed on the upper end face of the support ring 12. When the solvent falls to the bottom of the inner cavity of the filter box 1 after passing through the filter device 9, the solvent precipitates.

[0019] Please see Figure 1To agitate the solvent, a separation box 4 is fixedly connected to the rear side of the filter box 1. A stirring box 13 is fixedly connected to the top surface of the inner cavity of the separation box 4. To allow the solvent to enter the stirring box 13, a delivery pipe 5 is fixedly connected to the middle of the right end face of the filter box 1, and the end of the delivery pipe 5 extends through into the interior of the stirring box 13. To accelerate the heat dissipation and evaporation of the solvent, a stirring device 7 is provided in the inner cavity of the stirring box 13. To allow the water vapor from the solvent evaporation to be discharged, a suction pipe 15 is fixedly connected to the upper right side of the stirring box 13, and a suction pump 8 is fixedly connected to the upper right end face of the separation box 4. The suction pipe 15 is fixedly connected to the suction pump 8, and the outlet of the suction pump 8 is fixedly connected to a condenser pipe 10. A recovery box 11 is fixedly connected to the lower right end face of the separation box 4, and the end of the condenser pipe 10 is fixedly connected to the upper part of the recovery box 11.

[0020] Please see Figure 3 To further filter and adsorb impurities in the solvent, a filtration device 9 is formed by a filter screen 91, a quartz filter layer 92, and an activated carbon filter layer 93. The filter screen 91 is installed on the upper end face of the support ring 12 and is rectangular and hollow. The activated carbon filter layer 93 is installed on the bottom end face of the inner cavity of the filter screen 91, and the quartz filter layer 92 is installed on the upper end face of the activated carbon filter layer 93. This ensures that the solvent with stains is first filtered through the quartz filter layer 92 and then adsorbed through the activated carbon filter layer 93.

[0021] Please see Figure 2 In order to accelerate the evaporation of the solvent and ensure that the solvent is heated evenly, a stirring device 7 is formed by a drive motor 71, a rotating rod 72 and a stirring rod 73. The drive motor 71 is fixedly connected to the middle of the upper end face of the separation box 4, and the motor shaft of the drive motor 71 extends through to the inner cavity of the stirring box 13 and is fixedly connected to the rotating rod 72. The stirring rod 73 is evenly fixedly connected to the outer wall of the rotating rod 72.

[0022] Please see Figure 2 In order to ensure that the solvent can be heated quickly, the outer wall of the mixing tank 13 needs to be heated. A heating wire 14 is fixedly connected to the outer wall of the mixing tank 13, and the heating wire 14 is spiral-shaped, which can ensure that the solvent in the mixing tank 13 is heated evenly and improve the heating efficiency.

[0023] Please see Figure 1 In order to heat the mixing tank 13 as quickly as possible and ensure that the mixing tank 13 remains at a high temperature, a water inlet pipe 6 is fixedly connected to the front left side of the upper end face of the separation tank 4, and the water inlet pipe 6 is connected to the separation tank 4 to ensure that water is added between the separation tank 4 and the mixing tank 13. By heating the water, the mixing tank 13 is effectively and continuously heated to ensure that the solvent evaporates.

[0024] Example 2 Please see Figure 2To accelerate the evaporation of cleaning solvent into clean solvent, the condenser tube 10 has a continuous S-shaped structure. The continuous bending design of the S-shaped structure greatly increases the inner surface area of ​​the condenser tube 10, prolongs the flow path and residence time of the steam in the tube. When hot steam enters from below the condenser tube 10, it will come into full contact with the tube wall, the heat will be carried away quickly, and the steam will be more easily liquefied into liquid, thereby improving the solvent recovery rate.

[0025] Working principle: During use, the workpiece to be cleaned can be placed on the upper surface of the filter plate 3. The workpiece is cleaned with the cleaning solvent. The cleaning solvent and the stains enter the filter box 1 through the filter plate 3. The cleaning solvent is first filtered through the quartz filter layer 92, and then the substances in the solvent are adsorbed through the activated carbon filter layer 93. The solvent enters the filter box 1, and the impurities in the solvent are precipitated to ensure that the solvent in the upper part of the filter box 1 is clean. It enters the mixing tank 13 through the infusion pipe 5. Using an external power supply, the drive motor 71 and the heating wire 13 are started. The drive motor 71 drives the rotating rod 72 to rotate, and the rotating rod 72 drives the stirring rod 73 to rotate. The solvent is quickly heated by the heating wire 14 to accelerate the evaporation rate of the solvent. The vacuum pump 8 is started, and the vapor of the solvent evaporated in the mixing tank 13 is evaporated through the vacuum pipe 15. The vapor enters the condenser pipe 10 through the exhaust port. The vapor is pre-cooled and condensed. The condensed solvent enters the recovery tank 11 through the other end of the condenser pipe 10 for storage to ensure that the solvent after condensation is clear.

[0026] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A device for recycling cleaning solvents, comprising a filter box (1), characterized in that: A surrounding plate (2) is fixedly connected to the upper end face of the filter box (1). A filter plate (3) is installed at the bottom of the inner cavity of the surrounding plate (2). A support ring (12) is fixedly connected to the upper part of the inner wall of the filter box (1). A filter device (9) is installed on the upper end face of the support ring (12). A separation box (4) is fixedly connected to the right side of the filter box (1). A stirring box (13) is fixedly connected to the top surface of the inner cavity of the separation box (4). An infusion tube (5) is fixedly connected to the middle of the right end face of the filter box (1). The end of the infusion tube (5) extends through to... Inside the mixing tank (13), a stirring device (7) is provided in the inner cavity of the mixing tank (13). A suction pipe (15) is fixedly connected to the upper right side of the mixing tank (13). A suction pump (8) is fixedly connected to the upper right end face of the separation tank (4). The suction pump (8) is fixedly connected to the end of the suction pipe (15). A condenser pipe (10) is fixedly connected to the end of the air outlet of the suction pump (8). A recovery tank (11) is fixedly connected to the lower right end face of the separation tank (4). The end of the condenser pipe (10) is fixedly connected to the upper part of the recovery tank (11).

2. The cleaning solvent recovery and utilization device according to claim 1, characterized in that: The filtration device (9) includes a filter screen (91), a quartz filter layer (92) and an activated carbon filter layer (93). The filter screen (91) is installed on the upper end face of the support ring (12), the activated carbon filter layer (93) is installed on the bottom end face of the inner cavity of the filter screen (91), and the quartz filter layer (92) is installed on the upper end face of the activated carbon filter layer (93).

3. The solvent recovery and recycling device according to claim 1, characterized in that: The stirring device (7) includes a drive motor (71), a rotating rod (72) and a stirring rod (73). The drive motor (71) is fixedly connected to the middle of the upper end face of the separation box (4). The motor shaft of the drive motor (71) extends through to the inner cavity of the stirring box (13) and is fixedly connected to the rotating rod (72). The stirring rod (73) is evenly fixedly connected to the outer wall of the rotating rod (72).

4. The cleaning solvent recovery and utilization device according to claim 1, characterized in that: A heating wire (14) is fixedly connected to the outer wall of the mixing tank (13), and the heating wire (14) is spiral in shape.

5. The apparatus for recycling cleaning solvent according to claim 1, characterized in that: A water inlet pipe (6) is fixedly connected to the front left side of the upper end face of the separation box (4), and the water inlet pipe (6) is connected to the separation box (4).

6. The apparatus for recycling cleaning solvent according to claim 1, characterized in that: The condenser tube (10) has a continuous S-shaped structure.

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