Filter disc cleaning apparatus simulating melt flow

Abstract

This invention provides a filter disc cleaning device that simulates the flow direction of melt, enabling efficient and thorough cleaning of impurities while maintaining a simple structure, reliable sealing, and energy efficiency. It includes: a container with an inner cavity for holding cleaning water, the container being connected to a drain valve, and the cross-sectional area of ​​the container's inner cavity being larger than the area of ​​the filter disc to be cleaned; a disc support for supporting and placing the filter disc to be cleaned; a sealing disc assembly including a disc body, a sealing gasket, and a driving mechanism connected to the disc body for driving the disc body to move up and down, achieving compression sealing and release of the filter disc's central ring; a self-priming pump; and a control system.

Description

Technical Field

[0001] This invention relates to the technical field of filter maintenance equipment, specifically a filter disc cleaning device that simulates the flow direction of melt. Background Technology

[0002] Filter discs are core filtration components commonly used in melt filtration and liquid filtration. They trap impurities through their microporous structure, thereby purifying the medium. During long-term use, impurities in the melt or liquid gradually accumulate inside and on the surface of the filter disc's micropores, especially in the flow area near the central ring. This accumulation of impurities increases filtration resistance, reduces filtration efficiency, and can even clog the filter disc, affecting the normal operation of the entire filtration system. Therefore, regular cleaning of the filter discs is crucial for ensuring the stable operation of the filtration system.

[0003] Currently, the main cleaning methods for filter discs include manual cleaning, high-pressure spray cleaning, and chemical immersion cleaning. Manual cleaning is inefficient, labor-intensive, and struggles to remove stubborn impurities from the micropores of the filter discs, resulting in poor cleaning effectiveness. High-pressure spray cleaning often uses a top-down or random spraying method, which fails to align with the actual melt flow direction during filter disc operation. This makes it difficult to effectively flush out impurities trapped inside the filter discs, leading to incomplete cleaning, and the high-pressure water flow can easily damage the surface of the filter discs. While chemical immersion cleaning can dissolve some stubborn impurities, the chemical reagents can corrode the filter disc material, shortening the filter disc's lifespan. Furthermore, the cost of treating chemical waste is high, and it can easily cause environmental pollution.

[0004] In addition, most existing cleaning equipment adopts an open or semi-open structure, which makes water leakage easy during the cleaning process, resulting in water waste and difficulty in forming a stable cleaning flow field. At the same time, the filter discs lack a stable fixing and sealing structure during the cleaning process, making them prone to displacement, which leads to turbulence in the cleaning flow field and further affects the cleaning effect.

[0005] Therefore, there is an urgent need to develop a filter disc cleaning device that can simulate the melt flow direction during actual operation of filter discs, achieve efficient and thorough cleaning of impurities, and is simple in structure, reliable in sealing, energy-saving and environmentally friendly. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a filter disc cleaning device that simulates the melt flow direction. It can simulate the melt flow direction during actual operation of the filter disc, achieving efficient and thorough cleaning of impurities. At the same time, it has a simple structure, reliable sealing, and is energy-saving and environmentally friendly.

[0007] A filter disc cleaning device that simulates melt flow direction, characterized in that it comprises: A container, the inner cavity of which contains cleaning water, the container is connected to a drain valve, and the cross-sectional area of ​​the inner cavity of the container is larger than the area of ​​the filter disc to be cleaned. Disc holder, used to support and hold the filter discs to be cleaned; A sealing disc assembly includes a disc body, a sealing gasket, and a drive mechanism. The sealing gasket is provided at the bottom of the disc body. The disc body is adapted to the aperture arrangement of the central ring of the filter disc. In the cleaning state, the outer circumference of the sealing gasket is closely attached to the bottom circumference of the central ring of the filter disc. The lower part of the thickness region of the disc body has at least one layer of water inlet channels extending radially from the side to the center. A central confluence cavity is opened in the central region of the disc body. The central regions of all water inlet channels are connected to the lower part of the central confluence cavity. The drive mechanism is connected to the disc body and is used to drive the disc body to move up and down to realize the pressing and sealing of the central ring of the filter disc and the loosening and removal. Self-priming pump; and control systems; The disc support is located in the lower part of the inner cavity of the container and is fixedly installed. The sealing disc assembly is located directly above the disc support. The upper part of the central manifold of the disc body is connected to the self-priming pump through the water inlet pipe. The control system is connected to the drive mechanism and the self-priming pump respectively. The outer side of the filter disc in the cleaning state is connected to the inner side of the filter channel and the water inlet channel.

[0008] Its further features are: The container is a square container with a square cross-section, and the container is an open container with an inner cavity. The inner wall of the square container is made of a corrosion-resistant and smooth material. The size of the square container is adapted to the specifications of the filter disc to be cleaned, ensuring that the filter disc can be completely covered by the water flow. The disc support is fixedly installed at the center of the inner cavity of the square container to hold the filter discs to be cleaned. The disc support is fixedly connected to the bottom of the square container. The height of the disc support is adapted to the thickness of the filter discs to be cleaned, ensuring that the filter discs can remain horizontal after placement, and ensuring that there is a gap between the edge of the filter discs and the inner wall of the square container to facilitate water flow. The disc holder is provided with positioning protrusions to position the filter discs and prevent them from shifting during the cleaning process. The driving mechanism of the sealing disc assembly is a pneumatic driving mechanism; The self-priming pump is arranged around the square container. The inlet of the self-priming pump is connected to the outlet of the sealing plate assembly through an inlet pipe. The outlet of the self-priming pump extends into the interior of the square container through an outlet pipe to form a water circulation. The water outlet pipe is built into the water outlet end of the square container and is equipped with a nozzle. The nozzle is set towards the inner wall of the square container so that the water flow is evenly sprayed inside the container to form a stable water flow environment. The self-priming pump has an adjustable speed structure, which can adjust the water flow speed according to the degree of contamination of the filter disc to adapt to different cleaning needs. The self-priming pump is pneumatically driven and works in conjunction with the pneumatic drive mechanism of the sealing disc assembly to improve the stability of equipment operation and facilitate maintenance. The square container is equipped with an openable cover plate on top. The cover plate is made of transparent material, which makes it easy to observe the cleaning process and prevents water from splashing during the cleaning process, thus reducing water waste. The cover plate is provided with through holes for the connecting pipes and drive mechanism of the sealing disc assembly to pass through. The disc holder is made of corrosion-resistant, high-strength metal material, and its surface is polished to reduce the adhesion of impurities and avoid scratching the surface of the filter disc. There are multiple positioning protrusions, which are evenly distributed on the upper surface of the disc holder and are adapted to the edge of the filter disc to ensure accurate positioning of the filter disc. The sealing gasket includes an upper sealing gasket and a lower sealing gasket. The upper and lower sealing gaskets are respectively fitted into the corresponding concave annular grooves of the disc body. The upper and lower sealing gaskets are spaced apart. Several water inlet channels are arranged around the spaced areas of the disc body corresponding to the upper and lower sealing gaskets. A converging gap is left between the outer periphery of the disc body at the spaced position and the inner annular wall of the central ring of the filter disc to ensure reliable water flow. Preferably, the upper surface of the filter disc holder has a raised center forming a lower sealing gasket, and the lower part of the disc body has an integrated upper sealing gasket. In the cleaning state, the lower part of the center ring of the filter disc is sealed and positioned by the lower sealing gasket in the height direction, and the upper part of the center ring of the filter disc is sealed and positioned by the upper sealing gasket in the height direction. In the cleaning state, the upper sealing gasket and the lower sealing gasket are spaced apart, and the lower end face of the disc body is in close contact with the upper surface of the lower sealing gasket. The spaced areas of the disc body corresponding to the upper sealing gasket and the lower sealing gasket are arranged with several water inlet channels. The sealing gasket is made of high-temperature resistant, corrosion-resistant, and highly elastic silicone material with a thickness of 2-5mm, ensuring sealing performance while avoiding damage to the central ring of the filter disc; The outer circumference of the sealing gasket is provided with an arc-shaped groove, the curvature of which is adapted to the outer arc surface of the corresponding height of the center ring of the filter disc, thereby increasing the sealing contact area and improving the sealing effect. The pneumatic drive mechanism includes a cylinder and a piston rod. The cylinder is fixedly installed above the cover plate, and the lower end of the piston rod passes through the through hole of the cover plate and is fixedly connected to the disc body. The cylinder is connected to an external air source through an air pipe. The extension and retraction of the cylinder is controlled by the control system to realize the up and down movement of the disc body. The cylinder is equipped with a limit switch to control the stroke of the piston rod, ensuring that the sealing gasket can accurately press the center ring of the filter disc; The inlet of the self-priming pump is equipped with a filter to filter out large particulate impurities in the cleaning water, preventing impurities from entering the self-priming pump and causing blockage or damage. The square container is equipped with a liquid level sensor, which is electrically connected to the control system to detect the water level inside the container. When the water level is lower than the set value, the control system issues an alarm signal to remind the operator to add water, ensuring that the filter disc can be completely submerged in water during the cleaning process. The inlet and outlet pipes are made of corrosion-resistant plastic. Sealing joints are provided at the connection points of the inlet and outlet pipes, the sealing disc assembly, and the self-priming pump to prevent water leakage. Valves are installed on the inlet and outlet pipes to control the flow of water, facilitating equipment maintenance and repair.

[0009] By adopting this invention, the melt flow direction during actual operation of the filter disc can be simulated, achieving efficient and thorough cleaning of impurities. At the same time, it has a simple structure, reliable sealing, and is energy-saving and environmentally friendly. Attached Figure Description

[0010] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram illustrating the working principle of the present invention (the arrows in the diagram indicate the direction of water flow). Figure 3 This is a specific embodiment of the sealing disc assembly and filter disc of the present invention after sealing; Figure 4 This is a second specific embodiment of the sealing disc assembly and filter disc of the present invention after sealing; Figure 5 This is a specific embodiment three of the sealing disc assembly and filter disc of the present invention after sealing; The names corresponding to the serial numbers in the diagram are as follows: Container 10, drain valve 11, disc support 20, sealing disc assembly 30, disc body 31, water inlet channel 311, central manifold 312, sealing gasket 32, upper sealing gasket 321, lower sealing gasket 322, drive mechanism 33, cylinder 331, piston rod 332, self-priming pump 40, water inlet pipe 50; Filter disc 100, center ring 101, filter channel 102; Through hole 1, manifold gap 2. Detailed Implementation

[0011] A filter disc cleaning device that simulates melt flow direction, see Figures 1-5 It includes a container 10, a disc support 20, a sealing disc assembly 30, a self-priming pump 40, and a control system (not shown in the figure, but can be arranged according to actual needs). The inner cavity of container 10 contains cleaning water, and container 10 is connected to a drain valve 11. The cross-sectional area of ​​the inner cavity of container 10 is larger than the area of ​​the filter disc 100 to be cleaned. The disc holder 20 is used to support and hold the filter disc 100 to be cleaned; The sealing disc assembly 30 includes a disc body 31, a sealing gasket 32, and a drive mechanism 33. The sealing gasket 32 ​​is provided at the bottom of the disc body 31. The disc body 31 is adapted to the aperture arrangement of the central ring 101 of the filter disc 100. In the cleaning state, the outer circumference of the sealing gasket 32 ​​is closely attached to the circumference of the central ring 101 of the filter disc 100. The lower part of the thickness area of ​​the disc body 31 has at least one layer of water inlet channels 311 extending from the radial side to the center. A central confluence cavity 312 is opened in the central area of ​​the disc body 31. The central areas of all water inlet channels 311 are connected to the lower part of the central confluence cavity 312. The drive mechanism 33 is connected to the disc body 31 and is used to drive the disc body 31 to move up and down to realize the pressing and sealing and loosening of the central ring 101 of the filter disc 100. The disc support 20 is located in the lower part of the inner cavity of the container 10 and is fixedly installed. The sealing disc assembly 30 is located directly above the disc support 20. The upper part of the central manifold 312 of the disc body 31 is connected to the self-priming pump 40 through the water inlet pipe 50. The control system is connected to the drive mechanism 33 and the self-priming pump 40 respectively. The outer side of the filter disc 100 in the cleaning state is connected to the inner side filter channel 102 and the water inlet channel 311.

[0012] In a specific embodiment, container 10 is a square container with a square cross-section, and container 10 is a container with an open top and forming an inner cavity; The inner wall of the square container is made of a corrosion-resistant and smooth material. The size of the square container is compatible with the specifications of the filter disc 100 to be cleaned, ensuring that the filter disc 100 can be completely covered by the water flow. The disc holder 20 is fixedly installed in the center of the inner cavity of the square container to hold the filter disc 100 to be cleaned. The disc holder 20 is fixedly connected to the bottom of the square container. The height of the disc holder 20 is adapted to the thickness of the filter disc 100 to be cleaned, ensuring that the filter disc 100 can remain horizontal after being placed, and ensuring that there is a gap between the edge of the filter disc 100 and the inner wall of the square container to facilitate water flow. The disc holder 20 is provided with positioning protrusions to position the filter disc 100 and prevent the filter disc from shifting during the cleaning process. The drive mechanism 33 of the sealing disc assembly 30 is a pneumatic drive mechanism; The self-priming pump 40 is arranged around the square container. The inlet of the self-priming pump 40 is connected to the outlet of the sealing plate assembly 30 through the inlet pipe 50. The outlet of the self-priming pump 40 extends into the inside of the square container through the outlet pipe to form a water circulation. The water outlet pipe is built into the water outlet end of the square container and is equipped with a nozzle. The nozzle is set towards the inner wall of the square container so that the water is sprayed evenly inside the container to form a stable water flow environment. The self-priming pump 40 adopts an adjustable speed structure, which can adjust the water flow speed according to the degree of contamination of the filter disc 100 to adapt to different cleaning needs. The self-priming pump 40 is pneumatically driven and works in conjunction with the pneumatic drive mechanism of the sealing disc assembly 30 to improve the stability of equipment operation and facilitate maintenance. The top of the square container is equipped with an openable cover made of transparent material, which makes it easy to observe the cleaning process and prevents water from splashing during the cleaning process, thus reducing water waste. The cover is provided with through holes for the connecting pipes and pneumatic drive mechanism of the sealing disc assembly 30 to pass through. The disc holder 20 is made of corrosion-resistant, high-strength metal material, and its surface is polished to reduce the adhesion of impurities and avoid scratching the surface of the filter disc. There are multiple positioning protrusions, which are evenly distributed on the upper surface of the disc holder and are adapted to the edge of the filter disc 100 to ensure accurate positioning of the filter disc.

[0013] In the first specific embodiment, the thickness of the sealing gasket 32 ​​covers the thickness of the filter disc 100, and a through hole 1 communicating with the water inlet channel is opened in the central area of ​​the sealing gasket in the thickness direction.

[0014] In the second specific embodiment, the sealing gasket 32 ​​includes an upper sealing gasket 321 and a lower sealing gasket 322. The upper sealing gasket 321 and the lower sealing gasket 322 are respectively fitted into the corresponding concave annular grooves of the disc body 31. The upper sealing gasket 321 and the lower sealing gasket 322 are spaced apart. Several water inlet channels 311 are arranged around the spaced areas of the disc body 31 corresponding to the upper sealing gasket 321 and the lower sealing gasket 322. A converging gap 2 is left between the outer periphery of the disc body 31 located at the spaced position and the inner ring wall of the central ring of the filter disc to ensure reliable water flow.

[0015] In the third specific embodiment, the upper surface of the filter disc holder 20 has a raised center forming a lower sealing gasket 321, and the lower part of the disc body 31 is integrated with an upper sealing gasket 322. In the cleaning state, the lower part of the center ring 101 of the filter disc 100 is sealed and positioned by the lower sealing gasket 321 in the height direction, and the upper part of the center ring 101 of the filter disc 100 is sealed and positioned by the upper sealing gasket 322 in the height direction. In the cleaning state, the upper sealing gasket 322 and the lower sealing gasket 321 are spaced apart, and the lower end face of the disc body 31 is in close contact with the upper surface of the lower sealing gasket 321. Several water inlet channels 311 are arranged around the spaced area of ​​the disc body 31 corresponding to the upper sealing gasket 322 and the lower sealing gasket 321.

[0016] In specific embodiments one to three, the sealing gasket 32 ​​is made of high-temperature resistant, corrosion resistant and elastic silicone material with a thickness of 2-5mm, which ensures sealing performance while avoiding damage to the central ring of the filter disc 100.

[0017] In a specific embodiment, an arc-shaped groove is provided around the outer circumference of the sealing gasket 32. The curvature of the arc-shaped groove is adapted to the outer arc surface of the corresponding height of the center ring 101 of the filter disc 100, thereby increasing the sealing contact area and improving the sealing effect.

[0018] The pneumatic drive mechanism includes a cylinder 331 and a piston rod 332. The cylinder 331 is fixedly installed on the top of the cover plate. The lower end of the piston rod 332 passes through the through hole of the cover plate and is fixedly connected to the disc body 31. The cylinder 331 is connected to an external air source through an air pipe. The extension and retraction of the cylinder is controlled by the control system to realize the up and down movement of the disc body 31. A limit switch is provided on the cylinder 331 to control the stroke of the piston rod 332, ensuring that the sealing gasket 32 ​​can accurately press the center ring 101 of the filter disc 100; The inlet of the self-priming pump 40 is equipped with a filter to filter out large particles of impurities in the cleaning water, preventing impurities from entering the self-priming pump 40 and causing blockage or damage to the self-priming pump 40. The square container is equipped with a liquid level sensor, which is electrically connected to the control system to detect the water level inside the container 10. When the water level is lower than the set value, the control system issues an alarm signal to remind the operator to add water to ensure that the filter disc can be completely submerged in water during the cleaning process. The inlet pipe 50 and outlet pipe are made of corrosion-resistant plastic. Sealing joints are provided at the connection between the inlet pipe 50, outlet pipe, sealing disc assembly 30, and self-priming pump 40 to prevent water leakage. Valves are installed on the inlet pipe and outlet pipe to control the flow of water, which facilitates equipment maintenance and repair.

[0019] The working process of this invention is as follows: S1, Preparation: Open the cover of the square container, place the filter disc to be cleaned on the disc holder, and position the filter disc using the positioning protrusions to ensure that the center ring of the filter disc DE corresponds to the disc body of the sealing disc assembly; close the cover, and set the cleaning parameters through the control system, including the speed of the self-priming pump, cleaning time, etc. S2, Water Sealing: Inject cleaning water into the square container until the level sensor detects that the water level has reached the set value, then stop adding water; the control system starts the pneumatic drive mechanism, the cylinder pushes the piston rod downward, causing the disc to descend, so that the sealing gasket is in close contact with the disc center ring, thus achieving a tight seal on the disc center ring; S3 Simulated Flow Cleaning: Start the self-priming pump. The self-priming pump draws water from the inside of the square container through the water inlet of the disc. Due to the suction of the self-priming pump, the water inside the square container flows from the outside to the inside of the disc, passing through the micropores of the disc, simulating the flow direction of the melt from the outside to the inside when the disc is actually working. As the water flows through the disc, it washes away impurities on the surface of the disc and inside the micropores, peeling the impurities off the disc. Then, the water flows into the self-priming pump through the water inlet channel, the central confluence chamber, and the water inlet pipe, and is sprayed back into the square container through the outlet of the self-priming pump, forming a water circulation. S4 Cleaning Complete: After the set cleaning time is reached, the control system automatically shuts off the self-priming pump and pneumatic drive mechanism. The cylinder drives the piston rod to move upward, and the pneumatic sealing disc separates from the center ring of the filter disc. The drain valve is opened to drain the wastewater inside the container. The cover is opened to remove the cleaned disc, completing the entire cleaning process.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. Thorough cleaning and excellent results: This invention utilizes the suction action of a self-priming pump to make water flow from the outside to the inside of the disc, perfectly simulating the melt flow direction during actual disc operation. The water flow can directly flush away impurities inside the disc's micropores and near the central ring, especially targeting internal trapped impurities that are difficult to remove using traditional cleaning methods. It has a significant cleaning effect, effectively improving the cleanliness of the disc and ensuring subsequent filtration accuracy. At the same time, the speed of the self-priming pump can be adjusted to suit discs with different levels of contamination, avoiding damage to the disc due to over-cleaning.

[0021] 2. Reliable sealing and stable flow field: The pneumatic sealing disc presses and seals the central ring of the disc. The arc-shaped groove design of the sealing gasket increases the sealing contact area, effectively preventing water leakage between the central ring and the disc body. This ensures that the water can flow stably from the outside to the inside of the disc, forming a stable cleaning flow field. At the same time, the positioning protrusion of the disc holder can effectively fix the disc and prevent the disc from shifting during the cleaning process, further ensuring the cleaning effect.

[0022] 3. Energy-saving and environmentally friendly, with a long service life: This invention adopts a water circulation cleaning method, which eliminates the need for chemical reagents, avoiding corrosion of the discs and pollution of the environment, while reducing water waste; all components of the equipment are made of corrosion-resistant and high-strength materials, with a stable structure and convenient maintenance, which can effectively extend the service life of the equipment and discs and reduce maintenance costs.

[0023] 4. Easy to operate and highly efficient: The control system enables automated control of the pneumatic sealing disc and self-priming pump. Operators only need to set parameters, place and remove discs to complete the cleaning process. The operation is convenient and greatly reduces labor intensity. It is suitable for cleaning batches of discs.

[0024] 5. High adaptability and wide application: The disc holder and pneumatic sealing disc of this invention can be adapted and adjusted according to different specifications of filter discs, which can meet the cleaning needs of various models and sizes of discs. It is suitable for disc cleaning in various fields such as melt filtration and liquid filtration, and has a wide range of applications.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A filter disc cleaning device that simulates melt flow direction, characterized in that, It includes: A container, the inner cavity of which contains cleaning water, the container is connected to a drain valve, and the cross-sectional area of ​​the inner cavity of the container is larger than the area of ​​the filter disc to be cleaned. Disc holder, used to support and hold the filter discs to be cleaned; A sealing disc assembly includes a disc body, a sealing gasket, and a drive mechanism. The sealing gasket is provided at the bottom of the disc body. The disc body is adapted to the aperture arrangement of the central ring of the filter disc. In the cleaning state, the outer circumference of the sealing gasket is closely attached to the bottom circumference of the central ring of the filter disc. The lower part of the thickness region of the disc body has at least one layer of water inlet channels extending radially from the side to the center. A central confluence cavity is opened in the central region of the disc body. The central regions of all water inlet channels are connected to the lower part of the central confluence cavity. The drive mechanism is connected to the disc body and is used to drive the disc body to move up and down to realize the pressing and sealing of the central ring of the filter disc and the loosening and removal. Self-priming pump; and control systems; The disc support is located in the lower part of the inner cavity of the container and is fixedly installed. The sealing disc assembly is located directly above the disc support. The upper part of the central manifold of the disc body is connected to the self-priming pump through the water inlet pipe. The control system is connected to the drive mechanism and the self-priming pump respectively. The outer side of the filter disc in the cleaning state is connected to the inner side of the filter channel and the water inlet channel.

2. A filter disc washing apparatus for simulating melt flow according to claim 1, wherein: The container is a square container with a square cross-section, and the container is an open container with an inner cavity. The inner wall of the square container is made of a corrosion-resistant and smooth material, and the size of the square container is adapted to the specifications of the filter disc to be cleaned.

3. The filter disc cleaning device for simulating melt flow direction according to claim 2, characterized in that: The disc holder is fixedly installed at the center of the inner cavity of the square container and is used to place the filter discs to be cleaned. The disc holder is fixedly connected to the bottom of the square container, and the height of the disc holder is adapted to the thickness of the filter discs to be cleaned.

4. The filter disc cleaning device for simulating melt flow direction according to claim 1, characterized in that: The disc holder is provided with positioning protrusions for positioning the filter discs.

5. A filter disc cleaning device for simulating melt flow direction according to claim 2, characterized in that: The self-priming pump is arranged around the square container. The inlet of the self-priming pump is connected to the outlet of the sealing plate assembly through an inlet pipe. The outlet of the self-priming pump extends into the interior of the square container through an outlet pipe, forming a water circulation.

6. A filter disc washing apparatus for simulating melt flow according to claim 1, wherein: The square container is equipped with an openable cover plate on top. The cover plate is made of transparent material, which makes it easy to observe the cleaning process and prevents water from splashing during the cleaning process, thus reducing water waste. The cover plate is provided with through holes for the connecting pipes and drive mechanism of the sealing disc assembly to pass through.

7. A filter disc cleaning device for simulating melt flow direction according to claim 1, characterized in that: The sealing gasket includes an upper sealing gasket and a lower sealing gasket. The upper sealing gasket and the lower sealing gasket are respectively fitted into the corresponding concave annular grooves of the disc body. The upper sealing gasket and the lower sealing gasket are spaced apart. The spaced area of ​​the disc body corresponding to the upper sealing gasket and the lower sealing gasket is surrounded by several water inlet channels.

8. A filter disc washing apparatus for simulating melt flow according to claim 1, wherein: The upper surface of the filter disc holder has a raised center forming a lower sealing gasket, and the lower part of the disc body integrates an upper sealing gasket. In the cleaning state, the lower part of the center ring of the filter disc is sealed and positioned by the lower sealing gasket in the height direction, and the upper part of the center ring of the filter disc is sealed and positioned by the upper sealing gasket in the height direction. In the cleaning state, the upper sealing gasket and the lower sealing gasket are spaced apart, and the lower end face of the disc body is in close contact with the upper surface of the lower sealing gasket. The spaced areas of the disc body corresponding to the upper sealing gasket and the lower sealing gasket are arranged with several water inlet channels.

9. A filter disc cleaning device for simulating melt flow direction according to claim 1, characterized in that: The outer circumference of the sealing gasket is provided with an arc-shaped groove, and the curvature of the arc-shaped groove is adapted to the outer arc surface of the corresponding height of the center ring of the filter disc.

10. A filter disc cleaning device for simulating melt flow direction according to claim 1, characterized in that: The self-priming pump is equipped with a filter at its inlet to filter out large particles of impurities in the cleaning water, preventing impurities from entering the pump and causing blockage or damage.

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