Circulating filtration device for glue mixing preparation

Abstract

The utility model discloses a circulating filtering device for glue mixing preparation, which comprises a glue mixing tank, a filtering box is mounted on one side of the glue mixing tank, a first glue conveying pipe and a first backflow pipe are respectively mounted between two ends of the glue mixing tank and the filtering box, the first backflow pipe is positioned above the first glue conveying pipe, and the first glue conveying pipe is communicated with the filtering box. A sealing cover is fixedly mounted at the upper end of the filter box, mounting boxes are fixedly mounted on the inner sides of the two ends of the filter box, positioning clamping plates are mounted on the inner sides of the two ends of one of the mounting boxes, and a plurality of filter screen mounting plates are mounted between the two positioning clamping plates; and a third glue conveying pipe is installed between the two installation boxes, a third backflow pipe is installed in the middle of the third glue conveying pipe, and a liquid conveying pump is installed on one side of the third backflow pipe. According to the utility model, the backflow position of the glue solution is controlled according to the filtering residual quantity after the glue solution is prepared, so that the secondary circulating filtering operation of the glue solution can be met, and the purity of the glue solution is effectively kept.

Description

Technical Field

[0001] This utility model relates to the field of adhesive preparation technology, specifically a circulating filtration device for adhesive preparation. Background Technology

[0002] As a crucial additive in the papermaking process, the purity and uniformity of the adhesive directly affect paper quality. Filtering to remove impurities and particulate matter from the adhesive can significantly reduce spots and defects on the paper surface, improving whiteness, smoothness, and overall quality, thus meeting market demands for high-quality paper. The presence of impurities and particulate matter in the adhesive can cause clogging or wear on papermaking equipment, affecting the smoothness of the production process. Filtering to remove these impurities can effectively prevent equipment malfunctions.

[0003] Existing methods for preparing adhesives by stirring resins, monomers, oligomers, solids, and solvents often result in residual suspended particulate matter in the adhesive solution. Single filtration cannot guarantee the purity of the adhesive solution and is not convenient for multiple stable filtrations. Therefore, these methods do not meet current requirements. To address this, we propose a circulating filtration device for adhesive preparation. Utility Model Content

[0004] The purpose of this invention is to provide a circulating filtration device for preparing adhesive, in order to solve the problems mentioned in the background art, where in the existing preparation of adhesive by stirring resin, monomer, oligomer, solid material and solvent, particulate matter is easily left in the adhesive, and a single filtration cannot guarantee the purity of the adhesive, and it is not convenient to perform multiple stable filtrations of the adhesive.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circulating filtration device for preparing adhesive, comprising an adhesive mixing tank, a filter box installed on one side of the adhesive mixing tank, a first adhesive delivery pipe and a first return pipe respectively installed between the two ends of the adhesive mixing tank and the filter box, the first return pipe being located above the first adhesive delivery pipe, a sealing cover fixedly installed at the upper end of the filter box, and mounting boxes fixedly installed on the inner sides of both ends of the filter box, wherein a positioning plate is installed on the inner sides of both ends of one of the mounting boxes, and multiple filter screen mounting plates are installed between the two positioning plates;

[0006] A third glue delivery tube is installed between the two installation boxes. A third return tube is installed in the middle of the third glue delivery tube. An infusion pump is installed on one side of the third return tube. A second glue delivery tube is installed at one end of the filter box. A second return tube is installed between the second glue delivery tube and the first return tube. A cooling tank is installed on the outer side of one end of the second glue delivery tube. Multiple mother-daughter bags are installed inside the other installation box.

[0007] Preferably, a stirring motor is fixedly installed at the upper end of the mixing tank, a feed pipe is installed on one side of the stirring motor, a stirring frame is rotatably connected to the inner side of the mixing tank, and the output end of the stirring motor passes through the mixing tank and is connected to the upper end of the stirring frame through a coupling.

[0008] Preferably, one end of the first glue delivery tube passes through the filter box and is inserted into the inside of one of the installation boxes. The glue mixing tank is connected to one of the installation boxes through the first glue delivery tube. The two installation boxes are connected through the third glue delivery tube. The infusion pump is fixedly connected to the third glue delivery tube. The plurality of filter screen mounting plates are fixedly connected to one of the installation boxes through two positioning plates. Each filter screen mounting plate has a filter screen on both sides.

[0009] Preferably, one end of the second glue delivery tube passes through the filter box and is inserted into the inside of the cooling tank, and the other installation box is connected to the cooling tank through the second glue delivery tube, and the upper ends of the multiple mother and daughter bags are fixedly connected to the other installation box.

[0010] Preferably, the bottom end of the first return pipe is connected to the second and third glue delivery pipes through the second and third return pipes, respectively, and the upper end of the first return pipe is inserted into the inside of the glue mixing tank. The glue mixing tank is connected to the second and third return pipes through the first return pipe.

[0011] Preferably, the inner sides of the second return pipe, the second glue delivery pipe, the third glue delivery pipe, and the third return pipe are all equipped with solenoid valves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a stirring motor to drive a stirring frame to stir the mixture and form a glue solution. Each filter screen mounting plate has a filter screen on both sides, and multiple filter screen mounting plates can remove particulate suspended matter in the glue solution. The infusion pump delivers the glue solution to the inside of multiple mother and daughter bags through a third glue delivery pipe, and the glue solution can be further filtered through multiple mother and daughter bags. By opening the solenoid valve switch inside the third return pipe and closing the solenoid valve switches inside the second return pipe and the third glue delivery pipe, the third glue delivery pipe can return the initially filtered glue solution to the inside of the glue mixing tank through the third return pipe and the first return pipe, realizing the re-mixing and stirring operation of the glue solution and improving the mixing quality.

[0014] 2. This utility model opens and closes the solenoid valves inside the third glue delivery pipe and the second return pipe based on the filtration quality of multiple mother and daughter bags. As a result, the glue liquid is filtered twice by the filter screen mounting plate and the mother and daughter bags, and then recirculated through the second return pipe and the first return pipe. Through mixing and stirring, the content of suspended particulate matter in the glue liquid can be effectively reduced, realizing the circulation filtration of the glue liquid and effectively improving the quality of the glue liquid. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the filter box of this utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the third return pipe of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the mounting box of this utility model.

[0019] In the diagram: 1. Mixing tank; 2. Stirring motor; 3. Feed pipe; 4. First glue delivery pipe; 5. Filter box; 6. Sealing cover; 7. First reflux pipe; 8. Second reflux pipe; 9. Second glue delivery pipe; 10. Cooling tank; 11. Mounting box; 12. Positioning plate; 13. Infusion pump; 14. Third glue delivery pipe; 15. Third reflux pipe; 16. Mother and daughter bag; 17. Filter screen mounting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] The infusion pump 13 (model MDZ-20-180) mentioned in this utility model can be obtained from the market or through private customization.

[0022] Please see Figure 1 and Figure 4 An embodiment of this utility model provides a circulating filtration device for preparing adhesive, comprising an adhesive preparation tank 1, a stirring motor 2 fixedly installed at the upper end of the adhesive preparation tank 1, a feed pipe 3 installed on one side of the stirring motor 2, a stirring frame rotatably connected to the inner side of the adhesive preparation tank 1, the output end of the stirring motor 2 passing through the adhesive preparation tank 1 and connected to the upper end of the stirring frame via a coupling, a filter box 5 installed on one side of the adhesive preparation tank 1, a first adhesive delivery pipe 4 and a first return pipe 7 respectively installed between the two ends of the adhesive preparation tank 1 and the filter box 5, the first return pipe 7 being located above the first adhesive delivery pipe 4, and the adhesive liquid can be returned through the first return pipe 7;

[0023] A sealing cover 6 is fixedly installed on the upper end of the filter box 5. An installation box 11 is fixedly installed on the inner side of both ends of the filter box 5. One end of the first glue delivery pipe 4 passes through the filter box 5 and is inserted into the inner side of one of the installation boxes 11. The glue mixing tank 1 is connected to one of the installation boxes 11 through the first glue delivery pipe 4. Positioning plates 12 are installed on the inner side of both ends of one of the installation boxes 11. Multiple filter screen installation plates 17 are installed between the two positioning plates 12. The multiple filter screen installation plates 17 are fixedly connected to one of the installation boxes 11 through the two positioning plates 12. Each filter screen installation plate 17 has a filter screen on both sides. Multiple mother-daughter bags 16 are installed on the inner side of the other installation box 11. The upper ends of the multiple mother-daughter bags 16 are fixedly connected to the other installation box 11. The glue liquid can be filtered in two stages through the mother-daughter bags 16 and the filter screen installation plates 17.

[0024] Please see Figure 2 and Figure 3 A third glue delivery pipe 14 is installed between the two installation boxes 11. The two installation boxes 11 are connected through the third glue delivery pipe 14. A third return pipe 15 is installed in the middle of the third glue delivery pipe 14. The bottom end of the first return pipe 7 is connected to the second glue delivery pipe 9 and the third glue delivery pipe 14 through the second return pipe 8 and the third return pipe 15, respectively. The upper end of the first return pipe 7 is inserted into the inside of the glue mixing tank 1. The glue mixing tank 1 is connected to the second return pipe 8 and the third return pipe 15 through the first return pipe 7. The inside of the second return pipe 8, the second glue delivery pipe 9, the third glue delivery pipe 14 and the third return pipe 15 are all equipped with solenoid valves. The glue return position can be adjusted by controlling the opening and closing of the solenoid valves.

[0025] A liquid pump 13 is installed on one side of the third return pipe 15. The liquid pump 13 is fixedly connected to the third glue delivery pipe 14. A second glue delivery pipe 9 is installed at one end of the filter box 5. A second return pipe 8 is installed between the second glue delivery pipe 9 and the first return pipe 7. A cooling tank 10 is installed on the outside of one end of the second glue delivery pipe 9. One end of the second glue delivery pipe 9 passes through the filter box 5 and is inserted into the inside of the cooling tank 10. Another mounting box 11 is connected to the cooling tank 10 through the second glue delivery pipe 9. The glue can be refluxed at different filtration positions through the second return pipe 8 and the third return pipe 15, which facilitates the circulation and filtration of the glue.

[0026] In use, the resin, monomer, oligomer, solid material and solvent for preparing the adhesive solution are injected into the inner side of the mixing tank 1 through the feed pipe 3. The power is turned on and the stirring motor 2 is started. Under the support of the mixing tank 1, the stirring motor 2 drives the stirring frame to stir the mixture and form the adhesive solution. Then the mixing tank 1 transports the adhesive solution to the inner side of one of the installation boxes 11 through the first adhesive delivery pipe 4. Multiple filter screen mounting plates 17 are fixedly installed on the inner side of one of the installation boxes 11 by two positioning plates 12. Each filter screen mounting plate 17 has a filter screen on both sides. Thus, the multiple filter screen mounting plates 17 can remove particulate suspended matter in the adhesive solution.

[0027] Start the infusion pump 13 so that the infusion pump 13 delivers the glue to the inside of multiple mother and daughter bags 16 through the third glue delivery pipe 14. The glue can then be further filtered through the multiple mother and daughter bags 16. After that, the glue is delivered to the inside of the cooling tank 10 for cooling through the second glue delivery pipe 9.

[0028] Solenoid valves are provided inside the second reflux pipe 8, the second glue delivery pipe 9, the third glue delivery pipe 14, and the third reflux pipe 15. During the glue delivery process of the third glue delivery pipe 14, by opening the solenoid valve switch inside the third reflux pipe 15 and closing the solenoid valve switches inside the second reflux pipe 8 and the third glue delivery pipe 14, the third glue delivery pipe 14 can return the pre-filtered glue to the inside of the glue mixing tank 1 through the third reflux pipe 15 and the first reflux pipe 7, thereby realizing the re-mixing and stirring operation of the glue and improving the mixing quality.

[0029] Based on the filtration quality of the multiple mother-daughter bags 16, the solenoid valve switches inside the third glue delivery pipe 14 and the second return pipe 8 are opened and closed. The solenoid valve switches inside the third return pipe 15 and the second glue delivery pipe 9 are then closed. After the glue is filtered twice by the filter screen mounting plate 17 and the mother-daughter bags 16, it is refluxed again through the second return pipe 8 and the first return pipe 7. Through mixing and stirring, the content of particulate matter in the glue can be effectively reduced, realizing the circulation filtration of the glue and effectively improving the quality of the glue.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A circulating filter device for glue mixing preparation, comprising a glue mixing tank (1), characterized in that: The side of the glue mixing tank (1) is provided with a filter box (5), and the two ends of the glue mixing tank (1) are respectively provided with a first glue conveying pipe (4) and a first return pipe (7) between the filter box (5), the first return pipe (7) is located above the first glue conveying pipe (4), the upper end of the filter box (5) is fixedly provided with a sealing cover (6), the inner sides of the two ends of the filter box (5) are fixedly provided with mounting boxes (11), and the inner sides of the two ends of one of the mounting boxes (11) are provided with positioning clamping plates (12), a plurality of filter screen mounting plates (17) are arranged between the two positioning clamping plates (12). A third glue conveying pipe (14) is arranged between the two mounting boxes (11), a third return pipe (15) is arranged in the middle of the third glue conveying pipe (14), a transfusion pump (13) is arranged on one side of the third return pipe (15), a second glue conveying pipe (9) is arranged at one end of the filter box (5), a second return pipe (8) is arranged between the second glue conveying pipe (9) and the first return pipe (7), a cooling tank (10) is arranged on the outer side of one end of the second glue conveying pipe (9), and a plurality of sub-mother bags (16) are arranged on the inner side of the other mounting box (11).

2. The circulating filter device for glue adjusting preparation according to claim 1, characterized in that: The upper end of the glue mixing tank (1) is fixedly provided with a stirring motor (2), one side of the stirring motor (2) is provided with a feeding pipe (3), the inner side of the glue mixing tank (1) is rotatably connected with a stirring frame, and the output end of the stirring motor (2) penetrates through the glue mixing tank (1) and is connected with the upper end of the stirring frame through a shaft coupling.

3. The circulating filter device for glue adjusting preparation according to claim 1, characterized in that: One end of the first glue conveying pipe (4) penetrates through the filter box (5) and is inserted into the inner side of one of the mounting boxes (11), the glue mixing tank (1) and one of the mounting boxes (11) are connected through the first glue conveying pipe (4), the two mounting boxes (11) are connected through the third glue conveying pipe (14), the transfusion pump (13) is fixedly connected with the third glue conveying pipe (14), a plurality of filter screen mounting plates (17) are fixedly connected with one of the mounting boxes (11) through two positioning clamping plates (12), and filter screens are arranged on the two sides of each filter screen mounting plate (17).

4. The circulating filter device for glue adjusting preparation according to claim 1, characterized in that: One end of the second glue conveying pipe (9) penetrates through the filter box (5) and is inserted into the inner side of the cooling tank (10), the other mounting box (11) and the cooling tank (10) are connected through the second glue conveying pipe (9), and the upper ends of a plurality of sub-mother bags (16) are fixedly connected with the other mounting box (11).

5. The circulating filter device for glue adjusting preparation according to claim 1, characterized in that: The bottom end of the first return pipe (7) is connected with the second glue conveying pipe (9) and the third glue conveying pipe (14) through the second return pipe (8) and the third return pipe (15) respectively, the upper end of the first return pipe (7) is inserted into the inner side of the glue mixing tank (1), and the glue mixing tank (1) is connected with the second return pipe (8) and the third return pipe (15) through the first return pipe (7).

6. The circulating filter device for glue adjusting preparation according to claim 1, characterized in that: The inner sides of the second return pipe (8), the second glue conveying pipe (9), the third glue conveying pipe (14) and the third return pipe (15) are provided with electromagnetic valves.

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