Papermaking white water filtering device

Abstract

The utility model relates to the technical field of papermaking white water filtering, in particular to a papermaking white water filtering device. According to the technical scheme, the device comprises a tank body, a liquid inlet pipe, a water storage tank, a sealing gasket, a white water filter, a mounting base and supporting legs, the supporting legs are fixedly connected to the four corners of the bottom of the tank body, the water storage tank is formed in the tank body, the mounting base is fixedly connected to the position, below the water storage tank, of the tank body, and the white water filter is movably connected to the mounting base; a sealing gasket is arranged between the white water filter and the mounting seat, the sealing gasket is made of a rubber material, and a liquid inlet pipe is embedded in one side of the tank body; the side, close to the branch pipe, of the center shaft of the device is provided with the sprayer, the sprayer is obliquely arranged and obliquely sprays water to the filter screen, the filter screen rotates under the impact of white water, the rotating filter screen can more effectively capture and separate solid particles and other pollutants generated in the papermaking process, and the backwash sprayer is annularly arranged below the center shaft, so that the backwash effect is better. The reverse cleaning device is used for reversely cleaning the filter screen and keeping the filtering efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking white water filtration, in particular to a papermaking white water filtration device. Background Art

[0002] The reuse of papermaking white water is an important process in the papermaking process, which will have a significant impact on the conservation of clean water in the system. The concentration of white water removed from the paper machine wire section is relatively high. In addition to the direct reuse of pulp, it is not suitable to be directly sent to the paper machine for use as spray water and high-pressure water. In actual projects, the white water removed from the wire pressing section is first collected and then passes through a multi-disc thickener to recover the fibers and fillers in the white water, and then to the white water tower and sent to various water use points. Therefore, the reasonable design of the white water process is closely related to saving water, improving output and quality, and reducing production costs. It is of great significance in energy conservation and emission reduction in the papermaking industry.

[0003] However, the existing filtering devices are not convenient for providing sufficient water pressure and cannot effectively push white water through the filter screen and filter, which leads to a decrease in production efficiency in the papermaking process and may even affect the stability and consistency of paper quality. In addition, blockage or wastewater treatment problems occur during the filtration process, resulting in equipment downtime, which affects the production capacity and increases production costs. In view of this, we propose a papermaking white water filtration device to solve the existing problems. Utility Model Content

[0004] The purpose of the utility model is to provide a papermaking white water filtering device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a papermaking white water filtering device, comprising a tank body, a liquid inlet pipe, a water storage tank, a sealing gasket, a white water filter, a mounting seat and support legs, wherein the four corners of the bottom of the tank body are fixedly connected to the support legs, and a water storage tank is provided in the tank body, the tank body is fixedly connected to the mounting seat below the water storage tank, the mounting seat is movably connected to the white water filter, a sealing gasket is arranged between the white water filter and the mounting seat, the sealing gasket is made of rubber material, and a liquid inlet pipe is embedded in one side of the tank body.

[0006] Preferably, the mounting seat is fixedly connected to a central axis in the middle of the white water filter, a sleeve is provided in the central axis, a branch pipe is provided in a ring shape on the surface of the central axis away from the mounting seat, and a sprayer is provided on the side of the branch pipe away from the central axis, and the sprayer is arranged at an angle.

[0007] Preferably, a filter is movably connected to one side of the central shaft close to the branch pipe, the filter and the sprayer cooperate with each other, and a backwash sprayer is annularly arranged on the central shaft below the filter.

[0008] Preferably, a low-pressure water pump and a high-pressure water pump are respectively provided in the mounting seat, and the input ends of the low-pressure water pump and the high-pressure water pump are both located in the water storage tank, and the output ends of the low-pressure water pump and the high-pressure water pump are respectively located in the central axis and the sleeve.

[0009] Preferably, a high-pressure nozzle is provided on the surface of the sleeve away from the mounting seat, and a CPVC distribution pipe is symmetrically provided on the central axis in the white water filter, and a distributor is provided on the side of the central axis close to the filter.

[0010] Preferably, a return pipe is fixedly connected to the mounting seat below the sleeve, and a single-barrel filter is provided inside the side of the sleeve close to the high-pressure nozzle.

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

[0012] 1. The papermaking white water to be filtered is introduced into the device through the liquid inlet pipe at the bottom of the tank and enters the water storage tank. The setting of the water storage tank helps to stabilize the water flow and provide sufficient white water. The white water filter is installed on the mounting seat at the bottom of the tank. The sealing performance is ensured by a sealing gasket between the mounting seat and the tank body. The sealing gasket is usually made of rubber material and can effectively prevent white water leakage.

[0013] 2. The mounting base is fixedly connected to the central shaft, and a sleeve is provided in the central shaft. A low-pressure water pump and a high-pressure water pump are installed in the mounting base. Their input ends are located in the water storage tank, and their output ends are connected to the central shaft and the inside of the sleeve respectively. These water pumps are responsible for providing sufficient water pressure to push the white water through the sleeve and the central shaft. The setting of the sleeve helps to control and distribute the flow of white water during the filtration process. A sprayer is provided on the side of the central shaft close to the branch pipe. The sprayer is tilted and sprays obliquely onto the filter screen. The filter screen rotates under the impact of the white water. The rotating filter screen can more effectively capture and separate solid particles and other pollutants generated in the papermaking process.

[0014] 3. A backwash sprinkler is arranged in a ring below the central axis to regularly reverse clean the filter screen and maintain filtration efficiency. A return pipe is fixedly connected below the casing to handle the backflow of filtered wastewater. CPVC distribution pipes are symmetrically arranged within the central axis to more effectively distribute the flow direction and pressure of white water, ensuring stable operation and optimal performance of the entire filtration system. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the top view of the tank body in the utility model;

[0017] Figure 3 Based Figure 2Schematic diagram of the cross-sectional structure along the AA direction;

[0018] Figure 4 This is a schematic diagram of the cooperation between the center shaft and the sleeve in the utility model.

[0019] In the figure: 1. Tank body; 2. Liquid inlet pipe; 3. Water storage tank; 4. Sealing gasket; 5. White water filter; 6. CPVC distribution pipe; 7. Distributor; 8. Branch pipe; 9. Sprinkler; 10. Center axis; 11. Casing; 12. Mounting base; 13. Return pipe; 14. Filter; 15. Support leg; 16. High-pressure water pump; 17. Low-pressure water pump; 18. High-pressure nozzle; 19. Backwash sprinkler; 20. Single-barrel filter. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0021] like Figure 1-Figure 4 As shown, the utility model proposes a papermaking white water filtering device, including a tank body 1, a liquid inlet pipe 2, a water storage tank 3, a sealing gasket 4, a white water filter 5, a mounting seat 12 and a support leg 15. The four corners of the bottom of the tank body 1 are fixedly connected to the support legs 15, and a water storage tank 3 is opened in the tank body 1. The tank body 1 is fixedly connected to the mounting seat 12 below the water storage tank 3. The white water filter 5 is movably connected to the mounting seat 12. A sealing gasket 4 is arranged between the white water filter 5 and the mounting seat 12. The sealing gasket 4 is made of rubber material, and a liquid inlet pipe 2 is embedded in one side of the tank body 1.

[0022] In an optional embodiment, the mounting seat 12 is fixedly connected to the central shaft 10 in the middle of the white water filter 5, a sleeve 11 is arranged in the central shaft 10, and a branch pipe 8 is arranged in a ring on the surface of the central shaft 10 away from the mounting seat 12. The branch pipe 8 is provided with a sprayer 9 on the side away from the central shaft 10, and the sprayer 9 is arranged at an angle; the spray is sprayed obliquely onto the filter screen 14, and the filter screen 14 rotates under the impact of the white water. The rotating filter screen 14 can more effectively capture and separate solid particles and other pollutants generated in the papermaking process.

[0023] In an optional embodiment, a filter screen 14 is movably connected to one side of the central shaft 10 close to the branch pipe 8, the filter screen 14 and the sprayer 9 cooperate with each other, and a backwash sprayer 19 is annularly arranged on the central shaft 10 below the filter screen 14; it is used to regularly reverse clean the filter screen 14 to maintain the filtration efficiency.

[0024] In an optional embodiment, a low-pressure water pump 17 and a high-pressure water pump 16 are respectively provided in the mounting seat 12, and the input ends of the low-pressure water pump 17 and the high-pressure water pump 16 are both located in the water storage tank 3, and the output ends of the low-pressure water pump 17 and the high-pressure water pump 16 are respectively located in the central shaft 10 and the sleeve.

[0025] In an optional embodiment, a high-pressure nozzle 18 is provided on the surface of the sleeve 11 on the side away from the mounting seat 12, and a CPVC distribution pipe 6 is symmetrically provided on the central axis 10 in the white water filter 5, and a distributor 7 is provided on the side of the central axis 10 close to the filter 14.

[0026] In an optional embodiment, a return pipe 13 is fixedly connected to the mounting seat 12 below the sleeve 11 , and a single-barrel filter 20 is provided inside the side of the sleeve 11 close to the high-pressure nozzle 18 .

[0027] The working principle of the present invention is as follows: when using the device, the papermaking white water to be filtered is introduced into the device through the liquid inlet pipe 2 at the bottom of the tank body 1 and enters the water storage tank 3. The setting of the water storage tank 3 helps to stabilize the water flow and provide a sufficient amount of white water. The white water filter 5 is installed on the mounting seat 12 at the bottom of the tank body 1. The mounting seat 12 and the tank body 1 are sealed by a sealing gasket 4 to ensure sealing performance. The sealing gasket 4 is usually made of rubber material and can effectively prevent white water leakage. The mounting seat 12 is fixedly connected to the central shaft 10, and a sleeve 11 is provided in the central shaft 10. A low-pressure water pump 17 and High-pressure water pumps 16 have their input ends located within the water storage tank 3, and their output ends connected to the interior of the central shaft 10 and the casing 11, respectively. These water pumps are responsible for providing sufficient water pressure to push the white water through the casing 11 and central shaft 10. The provision of the casing 11 facilitates flow control and distribution of the white water during the filtration process. A sprayer 9 is provided on one side of the central shaft 10 near the branch pipe 8. The sprayer 9 is arranged at an angle, spraying obliquely onto the filter screen 14. The filter screen 14 rotates under the impact of the white water. The rotating filter screen 14 can more effectively capture and separate solid particles and other pollutants generated during the papermaking process;

[0028] At the same time, a backwash sprinkler 19 is arranged in a ring below the central axis 10 for regularly backwashing the filter screen 14 to maintain the filtration efficiency. A return pipe 13 is fixedly connected below the sleeve 11 to deal with the problem of backflow of filtered wastewater. CPVC distribution pipes 6 are symmetrically arranged inside the central axis 10 to more effectively distribute the flow direction and pressure of white water to ensure stable operation and optimal performance of the entire filtration system.

[0029] It should be understood that the above-described specific embodiments of the present invention are intended to illustrate or explain the principles of the present invention and do not constitute limitations on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents of such scope and metes and bounds.

Claims

1. A papermaking white water filtration device, characterized by: The invention comprises a tank body (1), a liquid inlet pipe (2), a water storage tank (3), a sealing gasket (4), a white water filter (5), a mounting seat (12) and a supporting leg (15). The four corners of the bottom of the tank body (1) are fixedly connected to the supporting legs (15), and the water storage tank (3) is provided in the tank body (1). The tank body (1) is fixedly connected to the mounting seat (12) below the water storage tank (3). The white water filter (5) is movably connected to the mounting seat (12). A sealing gasket (4) is provided between the white water filter (5) and the mounting seat (12). The sealing gasket (4) is made of rubber material. The liquid inlet pipe (2) is embedded in one side of the tank body (1).

2. A papermaking white water filtration device according to claim 1, characterized in that: The mounting seat (12) is fixedly connected to a central shaft (10) in the middle of the white water filter (5), a sleeve (11) is arranged in the central shaft (10), a branch pipe (8) is arranged in an annular shape on the surface of the central shaft (10) away from the mounting seat (12), and a sprayer (9) is arranged on the side of the branch pipe (8) away from the central shaft (10), and the sprayer (9) is arranged in an inclined manner.

3. A papermaking white water filtration device according to claim 2, characterized in that: A filter screen (14) is movably connected to one side of the central shaft (10) close to the branch pipe (8), the filter screen (14) and the sprayer (9) cooperate with each other, and a backwash sprayer (19) is annularly arranged on the central shaft (10) below the filter screen (14).

4. The papermaking white water filtration device according to claim 1, characterized in that: A low-pressure water pump (17) and a high-pressure water pump (16) are respectively arranged in the mounting seat (12), and the input ends of the low-pressure water pump (17) and the high-pressure water pump (16) are both located in the water storage tank (3), and the output ends of the low-pressure water pump (17) and the high-pressure water pump (16) are respectively located in the central shaft (10) and the sleeve.

5. The papermaking white water filtration device according to claim 1, characterized in that: A high-pressure nozzle (18) is provided on the surface of the sleeve (11) on one side away from the mounting seat (12), and a CPVC distribution pipe (6) is symmetrically provided on the central axis (10) in the white water filter (5), and a distributor (7) is provided on the side of the central axis (10) close to the filter screen (14).

6. The papermaking white water filtering device according to claim 5, characterized in that: A return pipe (13) is fixedly connected to the mounting seat (12) below the sleeve (11), and a single-barrel filter (20) is provided inside the sleeve (11) on one side close to the high-pressure nozzle (18).

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