Paper pulp filtering device for paper pulp molding

Abstract

The utility model discloses a paper pulp filtering device for paper pulp molding, and belongs to the technical field of paper pulp molding. Comprising a filter box; a filter plate is fixedly arranged in the filter box, a filter groove is formed in the filter plate, and a filter screen is arranged at the bottom of the filter groove; a filter pressing plate is arranged in the filter box in an up-down sliding manner; a fixed cylinder is fixedly arranged in the filter box, and a sliding cylinder fixedly connected with the filter pressing plate is arranged in the fixed cylinder in a sliding manner; a communicating groove is formed in the filter pressing plate, and a water spraying hole communicated with the communicating groove is formed in the bottom of the filter pressing plate; a high-pressure water pipe capable of providing high-pressure water is arranged outside the filter box, and the high-pressure water pipe is communicated with the communicating groove; a sliding groove is formed in the communicating groove, a sliding plate is arranged in the sliding groove in a sliding mode, and a communicating hole is formed in the sliding plate. When the filter screen needs to be cleaned, high-pressure and high-speed water flow can be directly sprayed to the filter screen through the high-pressure water pipe and the water spraying holes, impurities clamped in the net holes are washed out, the filter structure does not need to be disassembled, and rapidness and convenience are achieved.

Description

Technical Field

[0001] The utility model provides a pulp filtering device for pulp molding, belonging to the technical field of pulp molding. Background Art

[0002] Pulp molding is a processing method that uses pulp materials to make various products through a molding process. This processing method usually includes process steps such as preparing pulp, mold design, molding, drying and curing.

[0003] Pulp is the basis of molding, and the quality of pulp will directly affect the quality of molded products. When preparing pulp, wood fiber, waste paper, bamboo, etc. are usually used. These raw materials usually need to be processed by beating, crushing, bleaching, etc., and finally form pulp suitable for processing. In the process of preparing pulp, pulp filtration is usually required. This is because pulp often contains impurities and water-insoluble substances. If these substances are not filtered, they may affect the quality of the final product.

[0004] The existing technology can filter the viscous pulp by means of filter pressing, applying mechanical pressure to the pulp to make it pass through the filter screen, thereby achieving the filtering effect; however, the filter screen will inevitably become clogged after long-term use, and impurities of similar size to the mesh will get stuck in the mesh holes, affecting the filtering effect. It should be cleared and cleaned regularly. The mesh holes of the filter screen located inside the filter device are very inconvenient to clean, and the filter structure often needs to be disassembled. Utility Model Content

[0005] The technical problem to be solved by the utility model is that impurities are easily stuck in and blocked the mesh of the filter when filtering pulp, and it is inconvenient to clean the mesh of the filter, and the filter structure often needs to be disassembled, which is very troublesome.

[0006] In order to solve the above problems, the utility model proposes the following technical solutions: a pulp filtering device for pulp molding, comprising a supporting leg, which is fixedly connected to a filter box upward; a filter plate is fixedly arranged in the filter box, a filter groove is provided on the filter plate, and a filter screen is provided at the bottom of the filter groove; a filter press plate corresponding to the position of the filter plate is slidably arranged up and down in the filter box; a fixed cylinder is fixedly arranged in the filter box, and a sliding cylinder fixedly connected to the filter press plate is slidably arranged in the fixed cylinder; a connecting groove is provided in the filter press plate, and a water spray hole connected to the connecting groove is provided at the bottom of the filter press plate; a high-pressure water pipe capable of providing high-pressure water is provided outside the filter box, and the high-pressure water pipe is connected to the connecting groove; a slide groove is provided in the connecting groove, a sliding plate is slidably provided in the slide groove, and a connecting hole is provided on the sliding plate.

[0007] As an improvement, the communicating holes and the water spray holes are the same in number and have corresponding positions.

[0008] As an improvement, the filter tank and its corresponding structure are provided in two groups; a bidirectional electric telescopic rod is provided in the filter press plate, and the working end of the bidirectional electric telescopic rod is fixedly connected to the sliding plate.

[0009] As an improvement, the filter box is provided with a motor, and a screw rod is fixedly connected to the output shaft of the motor; a moving block is threadedly connected to the screw rod, and the moving block is fixedly connected to the sliding cylinder.

[0010] As an improvement, the inner wall of the fixed cylinder is a square, the moving block is a square corresponding to the inner wall of the fixed cylinder, and the moving block fits with the inner wall of the fixed cylinder.

[0011] As an improvement, the feed pipe is located between the filter press plate and the filter plate, and a valve is provided on the feed pipe; a screw plug is threadedly connected to the bottom of the filter box, and a drain pipe is provided at the bottom of the filter box, and a valve is provided on the drain pipe.

[0012] As an improvement, the high-pressure water pipe is a soft water pipe; a protrusion corresponding to the filter tank is fixedly connected below the filter press plate, and the water spray hole passes through the protrusion.

[0013] Beneficial effects of the utility model:

[0014] A connecting groove is provided in the filter press plate, and a water spray hole connected to the connecting groove is provided at the bottom of the filter press plate; a high-pressure water pipe capable of providing high-pressure water is provided outside the filter box, and the high-pressure water pipe is connected to the connecting groove. By providing a water spray hole at the bottom of the filter press plate and setting a high-pressure water pipe, when the filter screen needs to be cleaned, high-pressure and high-speed water flow can be directly sprayed toward the filter screen through the high-pressure water pipe and the water spray hole to flush out impurities stuck in the mesh, without disassembling the filter structure, which is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a three-dimensional diagram of a pulp filtering device for pulp molding.

[0016] Figure 2 The utility model is a diagram showing the internal structure of a filter box of a pulp filtering device for pulp molding.

[0017] Figure 3 It is a partial cross-sectional view of a pulp filtering device for pulp molding according to the utility model.

[0018] Figure 4 The utility model is a cross-sectional view of a filter press plate of a pulp filtering device for pulp molding.

[0019] 1. Legs; 2. Filter box; 3. High-pressure water pipe; 4. Feed pipe; 5. Drain pipe; 6. Screw plug; 7. Fixed cylinder; 8. Sliding cylinder; 9. Filter press plate; 10. Filter tank; 11. Filter plate; 12. Sliding plate; 13. Moving block; 14. Motor; 15. Screw rod; 16. Connecting groove; 17. Slide groove; 18. Filter net; 19. Water spray hole; 20. Bump; 21. Connecting hole; 22. Two-way electric telescopic rod. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] according to Figure 1-4 As shown: The utility model provides a pulp filtering device for pulp molding: comprising a leg 1, the leg 1 is fixedly connected with a filter box 2 upward; a filter plate 11 is fixedly arranged in the filter box 2, a filter slot 10 is provided on the filter plate 11, and a filter screen 18 is provided at the bottom of the filter slot 10; a filter press plate 9 corresponding to the position of the filter plate 11 is slidably arranged in the filter box 2; a fixed cylinder 7 is fixedly arranged in the filter box 2, and a sliding cylinder 8 fixedly connected to the filter press plate 9 is slidably arranged in the fixed cylinder 7; a connecting slot 16 is provided in the filter press plate 9, and a water spray hole 19 connected with the connecting slot 16 is provided at the bottom of the filter press plate 9; a high-pressure water pipe 3 capable of providing high-pressure water is provided outside the filter box 2, and the high-pressure water pipe 3 is connected with the connecting slot 16; a slide slot 17 is provided in the connecting slot 16, a sliding plate 12 is slidably provided in the slide slot 17, and a connecting hole 21 is provided on the sliding plate 12. The number of the connecting holes 21 is the same as that of the water spray holes 19 and the positions are corresponding. Two groups of filter tanks 10 and corresponding structures are provided; a bidirectional electric telescopic rod 22 is provided in the filter press plate 9 , and the working end of the bidirectional electric telescopic rod 22 is fixedly connected to the sliding plate 12 .

[0022] By opening a water spray hole 19 at the bottom of the filter plate 9 and providing a high-pressure water pipe 3, when the filter screen 18 needs to be cleaned, a high-pressure and high-speed water flow can be directly sprayed toward the filter screen 18 through the high-pressure water pipe 3 and the water spray hole 19 to flush out impurities stuck in the mesh, without disassembling the filter structure, which is quick and convenient.

[0023] The filter box 2 is provided with a motor 14, and a screw rod 15 is fixedly connected to the output shaft of the motor 14; a moving block 13 is threadedly connected to the screw rod 15, and the moving block 13 is fixedly connected to the sliding cylinder 8. The inner wall of the fixed cylinder 7 is square, and the moving block 13 is a square corresponding to the inner wall of the fixed cylinder 7, and the moving block 13 fits the inner wall of the fixed cylinder 7.

[0024] The arrangement of the inner wall of the square fixed cylinder 7 and the square moving block 13 can limit the rotation of the moving block 13, thereby converting the rotation of the screw rod 15 into the movement of the moving block 13, and driving the filter press plate 9 to move through the sliding cylinder 8.

[0025] The feed pipe 4 is located between the filter plate 9 and the filter plate 11, and a valve is arranged on the feed pipe 4; a screw plug 6 is screwed on the bottom of the filter box 2, and a drain pipe 5 is arranged at the bottom of the filter box 2, and a valve is arranged on the drain pipe 5.

[0026] The valve on the feed pipe 4 can prevent the pulp from flowing back into the feed pipe 4 during the filter pressing, and the arrangement of the drain pipe 5 facilitates the outflow of high-pressure waste water and impurities after cleaning.

[0027] The high-pressure water pipe 3 is a soft water pipe; a protrusion 20 corresponding to the filter tank 10 is fixedly connected below the filter press plate 9, and the water spray hole 19 passes through the protrusion 20.

[0028] The setting of the soft high-pressure water pipe 3 can ensure the connection with the filter press plate 9 when the filter press plate 9 slides up and down. The setting of the protrusion 20 can increase the sealing performance between the filter press plate 9 and the filter plate 11, and prevent the high-pressure water flow from flowing out of the filter tank 10.

[0029] Principle of the utility model

[0030] When the pulp filtering device provided by the present application is in normal operation, the pulp to be filtered is added into the filter box 2 through the feed pipe 4; the motor 14 is started to make the filter press plate 9 slide downward driven by the moving block 13 and the sliding cylinder 8, and the filter press plate 9 applies mechanical pressure to the pulp on the filter plate 11, so that the pulp flows into the bottom of the filter box 2 through the filter tank 10 and the filter screen 18, while the large impurities remain above the filter screen 18. After a period of time, the filter box 2 is opened, and the large impurities filtered out of the filter screen 18 can be removed, thereby achieving the purpose of filtering the pulp. It should be noted that during the filter press, the valve on the feed pipe 4 must be closed to prevent the pulp from flowing back into the feed pipe 4; at the same time, Figure 4 As shown, it is necessary to ensure that the connecting hole 21 and the water spray hole 19 are arranged in a staggered manner to prevent the pulp from entering the chute 17 and the connecting groove 16 through the connecting hole 21.

[0031] After the filter device has been used for a period of time, the mesh of the filter screen 18 often becomes clogged; at this time, while ensuring that the filter box 2 is not working, open the screw plug 6, take out all the filtered pulp at the bottom of the filter box 2, start the motor 14, make the filter press plate 9 fit with the filter plate 11, and at the same time, the protrusion 20 is located in the filter tank 10. Start the two-way electric telescopic rod 22, make the sliding plate 12 slide in the slide groove 17 until the connecting hole 21 is aligned with the water spray hole 19, and then the high-pressure water flow can be delivered to the connecting groove 16 through the high-pressure water pipe 3, so that the high-pressure water flow is sprayed from the connecting hole 21 and the water spray hole 19, so as to perform high-pressure flushing on the filter screen 18, and the impurities stuck in the filter hole are flushed into the bottom of the filter box 2, and the valve on the drain pipe 5 is opened to discharge the cleaned wastewater, without disassembling the filter structure, which is quick and convenient.

[0032] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A pulp filtering device for pulp molding, comprising a support leg (1), the support leg (1) being fixedly connected upwardly with a filter box (2); a filter plate (11) being fixedly arranged in the filter box (2), a filter groove (10) being provided on the filter plate (11), a filter net (18) being arranged at the bottom of the filter groove (10); a filter press plate (9) being slidably arranged up and down in the filter box (2) and corresponding to the position of the filter plate (11); characterized in that: A fixed cylinder (7) is fixedly arranged in the filter box (2), and a sliding cylinder (8) fixedly connected to the filter press plate (9) is slidably arranged in the fixed cylinder (7); a connecting groove (16) is provided in the filter press plate (9), and a water spray hole (19) connected to the connecting groove (16) is provided at the bottom of the filter press plate (9); a high-pressure water pipe (3) capable of providing high-pressure water is arranged outside the filter box (2), and the high-pressure water pipe (3) is connected to the connecting groove (16); a sliding groove (17) is provided in the connecting groove (16), and a sliding plate (12) is slidably arranged in the sliding groove (17), and a connecting hole (21) is provided on the sliding plate (12).

2. A pulp filtering device for pulp molding according to claim 1, characterized in that: The communicating holes (21) and the water spray holes (19) are the same in number and have corresponding positions.

3. A pulp filtering device for pulp molding according to claim 1, characterized in that: The filter tank (10) and its corresponding structure are provided in two groups; a bidirectional electric telescopic rod (22) is provided in the filter press plate (9), and the working end of the bidirectional electric telescopic rod (22) is fixedly connected to the sliding plate (12).

4. A pulp filtering device for pulp molding according to claim 1, characterized in that: The filter box (2) is provided with a motor (14), and a screw rod (15) is fixedly connected to the output shaft of the motor (14); a moving block (13) is threadedly connected to the screw rod (15), and the moving block (13) is fixedly connected to the sliding cylinder (8).

5. A pulp filtering device for pulp molding according to claim 4, characterized in that: The inner wall of the fixed cylinder (7) is in the shape of a square, the movable block (13) is in the shape of a square corresponding to the inner wall of the fixed cylinder (7), and the movable block (13) fits closely to the inner wall of the fixed cylinder (7).

6. A pulp filtering device for pulp molding according to claim 1, characterized in that: The filter box (2) is provided with a feed pipe (4) located between the filter press plate (9) and the filter plate (11), and a valve is provided on the feed pipe (4); a screw plug (6) is screwed to the bottom of the filter box (2), and a drain pipe (5) is provided at the bottom of the filter box (2), and a valve is provided on the drain pipe (5).

7. A pulp filtering device for pulp molding according to claim 1, characterized in that: The high-pressure water pipe (3) is a soft water pipe; a protrusion (20) corresponding to the filter tank (10) is fixedly connected below the filter press plate (9), and the water spray hole (19) passes through the protrusion (20).

Images