Slurry filter

Abstract

The invention relates to the technical field of semiconductor equipment, and discloses a slurry filter, which is characterized in that a plurality of filtering pieces are arranged in parallel, an inlet pipeline is respectively communicated with the bottom of each filtering piece, an outlet pipeline is respectively communicated with the top of each filtering piece, and a plurality of detection assemblies are respectively arranged in each filtering piece. The controller is suitable for acquiring a first parameter and / or a second parameter of slurry flowing through the filtering pieces in real time, the communication state between the inlet pipeline and any filtering piece and the communication state between the outlet pipeline and any filtering piece are regulated and controlled through the controller on the basis of the acquired first parameter and / or second parameter, and intelligent switching and control can be carried out according to the running states of the different filtering pieces; therefore, reduction of filtering efficiency caused by blockage of a single filtering piece is avoided, and continuity and stability of a slurry filtering process are ensured; and the uniformity and the reliability of slurry filtering are improved.

Description

Technical Field

[0001] This invention relates to the field of semiconductor equipment technology, and more specifically to a slurry filter. Background Technology

[0002] With the continuous development of electronic packaging technology, monolithic ceramic materials such as low-temperature co-fired ceramics (LTCC) and high-temperature co-fired ceramics (HTCC) are increasingly widely used in semiconductors, communications, and automotive electronics. In the preparation of these ceramic substrate materials, tape casting, as a core process for achieving thinner and more uniform ceramic substrates, has been widely adopted.

[0003] The tape casting process typically includes the following steps: First, ceramic powder is uniformly mixed with organic components such as dispersants, binders, and solvents to form a slurry with specific rheological properties. Then, this slurry is continuously injected into a tape casting apparatus and spread onto a substrate at a set thickness using a precisely controlled scraper. During the process, it is dried to ultimately form a sheet-like ceramic green body. To ensure slurry quality, filters are often installed in the slurry transport path to remove any foreign matter, large particles, or other impurities, thereby improving the consistency and reliability of the final product.

[0004] However, the slurry filters used in existing technologies are mostly simple mesh or porous media, which have many shortcomings in practical use. On the one hand, due to the continuous slurry supply characteristic of the casting process, if the slurry contains a large amount of foreign matter, has a high viscosity, or the filter has been used for a long time, it is very easy to cause filter clogging. On the other hand, once clogging occurs, the slurry cannot flow smoothly, and the system must take measures such as emergency shutdown, manual replacement of the filter, or switching to a large-pore filter screen to restore the supply. This not only leads to a large waste of slurry and equipment downtime, but may also cause adverse problems such as uneven slurry thickness and fluctuations in physical properties during the casting process, seriously affecting production efficiency and product quality. Summary of the Invention

[0005] In view of this, the present invention provides a slurry filter to solve the problems of low slurry filtration efficiency and poor filtration effect in the prior art, which leads to uneven slurry thickness and fluctuations in physical properties during the casting process.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0007] This invention provides a slurry filter, comprising: a filter element, an inlet pipe, an outlet pipe, a detection component, and a controller; multiple filter elements are provided and arranged in parallel; the inlet pipe is connected to the bottom of each of the multiple filter elements to facilitate the introduction of slurry into the filter elements; the outlet pipe is connected to the top of each of the multiple filter elements to facilitate the discharge of slurry flowing through the filter elements; multiple detection components are provided and are located within the filter elements to facilitate the acquisition of a first parameter and / or a second parameter of the slurry after it has flowed through the filter elements; the controller controls the connection of the inlet pipe and the outlet pipe to any of the filter elements based on the first parameter and / or the second parameter.

[0008] It has the following advantages:

[0009] This invention provides a slurry filter that uses multiple filter elements connected in parallel, with inlet pipes connected to the bottom of each filter element and outlet pipes connected to the top of each filter element. Multiple detection components are installed within each filter element to acquire first and / or second parameters of the slurry after it has passed through the filter elements in real time. A controller adjusts the connection between the inlet and outlet pipes and any filter element based on the acquired first and / or second parameters. This allows for intelligent switching and control based on the operating status of different filter elements, preventing filtration efficiency loss due to blockage of a single filter element and ensuring the continuity and stability of the slurry filtration process. Furthermore, it improves the uniformity and reliability of slurry filtration, preventing quality problems such as uneven thickness and physical property fluctuations in the slurry sheet during casting, effectively improving product consistency and process yield. It is suitable for high-requirement slurry film-forming processes and has good application prospects and industrial value.

[0010] According to some embodiments of the present invention, the filter element includes a first filter element and a second filter element arranged in parallel. The inlet pipe includes a first main pipe, a first inlet branch pipe, a second inlet branch pipe, and a first valve body. One end of the first inlet branch pipe and one end of the second inlet branch pipe are both connected to the first main pipe through the first valve body. The first valve body controls the first inlet branch pipe to communicate with the first main pipe or controls the second inlet branch pipe to communicate with the first main pipe. The other end of the first inlet branch pipe is connected to the first filter element, and the other end of the second inlet branch pipe is connected to the second filter element. The outlet pipe includes a second main pipe, a first outlet branch pipe, a second outlet branch pipe, and a second valve body. One end of the first outlet branch pipe and one end of the second outlet branch pipe are both connected to the second main pipe through the second valve body. The second valve body controls the first outlet branch pipe to communicate with the second main pipe or controls the second outlet branch pipe to communicate with the second main pipe. The other end of the first outlet branch pipe is connected to the first filter element, and the other end of the second outlet branch pipe is connected to the second filter element.

[0011] According to some embodiments of the present invention, the detection component includes a first detection component and a second detection component, wherein the first detection component is adapted to acquire the first parameter and / or the second parameter of the slurry after it flows through the first filter element; and the second detection component is adapted to acquire the first parameter and / or the second parameter of the slurry after it flows through the second filter element.

[0012] According to some embodiments of the present invention, the first valve body and the second valve body are both electromagnetic directional valves, and the controller is adapted to receive the first parameter and the second parameter to control the first valve body and the second valve body to turn so that the first inlet branch pipe is connected to the first main pipe, the first outlet branch pipe is connected to the second main pipe, and the slurry flows through the first filter element;

[0013] Alternatively, the second inlet branch pipe may be connected to the main flow pipe, and the second outlet branch pipe may be connected to the second main flow pipe, allowing the slurry to flow through the second filter element.

[0014] According to some embodiments of the present invention, the first parameter is a flow rate difference parameter, and the second parameter is a pressure difference parameter.

[0015] According to some embodiments of the present invention, the first detection component includes a first pressure detection element and a second pressure detection element. The first pressure detection element is disposed in the first inlet branch pipe, and the second pressure detection element is disposed in the first outlet branch pipe. The first pressure detection element is adapted to detect a first inlet pressure parameter of the slurry in the first inlet branch pipe, and the second pressure detection element is adapted to detect a first outlet pressure parameter of the slurry in the first outlet branch pipe. The difference between the first inlet pressure parameter and the first outlet pressure parameter is a first pressure difference parameter of the slurry flowing through the first filter element.

[0016] The second detection component includes a third pressure detection element and a fourth pressure detection element. The third pressure detection element is disposed in the second inlet branch pipe, and the fourth pressure detection element is disposed in the second outlet branch pipe. The third pressure detection element is adapted to detect the second inlet pressure parameter of the slurry in the second inlet branch pipe, and the fourth pressure detection element is adapted to detect the second outlet pressure parameter of the slurry in the second outlet branch pipe. The difference between the second inlet pressure parameter and the second outlet pressure parameter is the second pressure difference parameter of the slurry flowing through the second filter element.

[0017] The controller adjusts the direction of the first valve body and the second valve body according to the first pressure difference parameter or the second pressure difference parameter.

[0018] According to some embodiments of the present invention, the first detection component includes a first flow detection element and a second flow detection element. The first flow detection element is disposed in the first inlet branch pipe, and the second flow detection element is disposed in the first outlet branch pipe. The first flow detection element is adapted to detect a first inlet flow parameter of the slurry in the first inlet branch pipe, and the second flow detection element is adapted to detect a first outlet flow parameter of the slurry in the first outlet branch pipe. The difference between the first inlet flow parameter and the first outlet flow parameter is a first flow difference parameter of the slurry after flowing through the first filter element.

[0019] The second detection component includes a third flow detection element and a fourth flow detection element. The third flow detection element is disposed in the second inlet branch pipe, and the fourth flow detection element is disposed in the second outlet branch pipe. The third flow detection element is adapted to detect the second inlet flow parameter of the slurry in the second inlet branch pipe, and the fourth flow detection element is adapted to detect the second outlet flow parameter of the slurry in the second outlet branch pipe. The difference between the second inlet flow parameter and the second outlet flow parameter is the second flow difference parameter of the slurry after flowing through the second filter element.

[0020] The controller adjusts the direction of the first valve body and the second valve body according to the first flow difference parameter or the second flow difference parameter.

[0021] According to some embodiments of the present invention, the filter element includes a mounting housing and a filter element disposed within the mounting housing. The top of the mounting housing is connected to the outlet pipe, and the bottom of the mounting housing is connected to the inlet pipe. A cleaning nozzle is provided on the top of the mounting housing, and the cleaning nozzle is adapted to spray cleaning fluid onto the filter element.

[0022] According to some embodiments of the present invention, the bottom of the mounting housing is further provided with a drain outlet, which can be used to drain cleaning fluid.

[0023] According to some embodiments of the present invention, the mounting housing is provided with a drying structure, which is adapted to dry the filter element. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a slurry filter provided in some embodiments of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. First filter element; 2. Second filter element; 3. Inlet pipe; 4. Outlet pipe. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Reference Figure 1 As shown, in some embodiments of the present invention, a slurry filter is provided, including: a filter element, an inlet pipe 3, an outlet pipe 4, a detection component, and a controller; multiple filter elements are provided and are arranged in parallel; the inlet pipe 3 is respectively connected to the bottom of the multiple filter elements to facilitate the introduction of slurry into the filter elements; the outlet pipe 4 is respectively connected to the top of the multiple filter elements to facilitate the discharge of slurry flowing through the filter elements; multiple detection components are provided and are located within the filter elements to facilitate the acquisition of a first parameter and / or a second parameter of the slurry after it has flowed through the filter elements; the controller controls the inlet pipe 3 and the outlet pipe 4 to connect with any filter element according to the first parameter and / or the second parameter.

[0033] Specifically, the present invention provides a slurry filter by arranging multiple filter elements in parallel, with an inlet pipe 3 connected to the bottom of each filter element and an outlet pipe 4 connected to the top of each filter element. Multiple detection components are installed within each filter element to acquire first and / or second parameters of the slurry after it flows through the filter elements in real time. A controller adjusts the connection state between the inlet pipe 3 and outlet pipe 4 and any filter element based on the acquired first and / or second parameters. This allows for intelligent switching and control based on the operating state of different filter elements, thus avoiding filtration efficiency reduction caused by blockage of a single filter element and ensuring the continuity and stability of the slurry filtration process. Furthermore, it improves the uniformity and reliability of slurry filtration, preventing quality problems such as uneven thickness and physical property fluctuations in the slurry sheet during casting, effectively improving product consistency and process yield. It is suitable for high-requirement slurry film-forming processes and has good application prospects and industrial value.

[0034] In some embodiments of the present invention, the filter element includes a first filter element 1 and a second filter element 2 arranged in parallel. The inlet pipe 3 includes a first main pipe, a first inlet branch pipe, a second inlet branch pipe, and a first valve body. One end of the first inlet branch pipe and one end of the second inlet branch pipe are both connected to the first main pipe through the first valve body. The first valve body controls the first inlet branch pipe to communicate with the first main pipe or controls the second inlet branch pipe to communicate with the first main pipe. The other end of the first inlet branch pipe is connected to the first filter element 1, and the other end of the second inlet branch pipe is connected to the second filter element 2. The outlet pipe 4 includes a second main pipe, a first outlet branch pipe, a second outlet branch pipe, and a second valve body. One end of the first and second outlet branches of the first outlet branch pipe are both connected to the second main pipe through the second valve body. The second valve body controls the first outlet branch pipe to communicate with the second main pipe or controls the second outlet branch pipe to communicate with the second main pipe. The other end of the first outlet branch pipe is connected to the first filter element 1, and the other end of the second outlet branch pipe is connected to the second filter element 2.

[0035] Specifically, by setting up a first main pipe, a first inlet branch pipe, a second inlet branch pipe, and a first valve body, and a second main pipe, a first outlet branch pipe, a second outlet branch pipe, and a second valve body, the first filter element 1 and the second filter element 2 can achieve independent or switchable fluid pathway control through the valve body. The first valve body and the second valve body respectively control the connection relationship between the first / second inlet branch pipe and the main pipe, and the connection relationship between the first / second outlet branch pipe and the main pipe, thereby achieving independent slurry supply and discharge for the first filter element 1 or the second filter element 2. When a filter element needs cleaning, replacement, or maintenance, it can be isolated from the system through the valve body, while the other filter element can still work normally, thus avoiding the downtime of the entire machine and ensuring the continuity and stability of the filtration process. The controller can determine the filtration status based on the first or second parameters fed back by the detection components, dynamically switch the working filter element, improve the system's intelligence level, and effectively deal with abnormal situations such as filter element clogging or performance degradation.

[0036] In some embodiments of the present invention, the detection component includes a first detection component and a second detection component. The first detection component is adapted to acquire a first parameter and / or a second parameter of the slurry after it flows through the first filter element 1; the second detection component is adapted to acquire a first parameter and / or a second parameter of the slurry after it flows through the second filter element 2.

[0037] Specifically, each filter element is equipped with an independent detection component, which can accurately acquire the slurry flow status under the corresponding filtration path, enabling refined monitoring of the working status of different filtration channels. This helps the system identify performance changes or abnormalities in individual filter elements. The controller can compare and analyze the parameters collected from different filtration channels to make reasonable channel switching, valve control, and operation optimization decisions, thereby improving overall filtration efficiency and system responsiveness. Alternatively, when a filter element becomes clogged, leaks, or its filtration efficiency decreases, its corresponding detection component will provide abnormal data, facilitating timely location of the fault source, reducing manual troubleshooting time, and improving maintenance efficiency. By detecting the slurry status parameters of multiple channels, the system can maintain load balance among channels in parallel operation mode, avoiding the impact of a single channel's abnormality on the slurry stability of the entire production line, and further improving the consistency and physical performance reliability of the cast film products.

[0038] In some embodiments of the present invention, the first valve body and the second valve body are both electromagnetic directional valves. The controller is adapted to receive the first parameter and the second parameter to control the first valve body and the second valve body to turn so that the first inlet branch pipe is connected to the first main pipe, the first outlet branch pipe is connected to the second main pipe, and the slurry flows through the first filter element 1.

[0039] Alternatively, the second inlet branch pipe may be connected to the main pipe, and the second outlet branch pipe may be connected to the second main pipe, allowing the slurry to flow through the second filter element 2.

[0040] Specifically, by responding to controller commands, the electromagnetic diverting valve can precisely control the selection of the slurry path through the first filter element 1 or the second filter element 2 without manual intervention, achieving fully automatic operation of the system and improving operating efficiency. The electromagnetic diverting valve has the characteristics of rapid response and high control precision, and can quickly complete the channel switching when the detection component feedback parameters are abnormal, ensuring that the slurry is filtered under the optimal path, enhancing the adaptability and dynamic response capability of the filter.

[0041] In some embodiments of the present invention, the first parameter is a flow rate difference parameter, and the second parameter is a pressure difference parameter.

[0042] Specifically, based on the acquired flow difference and pressure difference parameters, the controller can analyze the operating status of the filter elements in real time, such as whether they are clogged or whether the filtration efficiency has decreased, and make optimized valve position adjustments to achieve data-driven logic decision control, thereby improving the overall intelligence level of the machine. Through solenoid valves, it can quickly isolate or connect filter branches. When a filter element malfunctions, it can quickly switch to a backup channel to avoid damage to the equipment caused by slurry blockage or pressure rise, ensuring production continuity. The solenoid diverting valve is small in size and flexible in control, making it easy to form a compact electrical control system with the controller. This is beneficial for the miniaturization and modular design of the equipment, and also simplifies later maintenance and upgrades.

[0043] In some embodiments of the present invention, the first detection component includes a first pressure detection element and a second pressure detection element. The first pressure detection element is disposed in the first inlet branch pipe, and the second pressure detection element is disposed in the first outlet branch pipe. The first pressure detection element is adapted to detect the first inlet pressure parameter of the slurry in the first inlet branch pipe, and the second pressure detection element is adapted to detect the first outlet pressure parameter of the slurry in the first outlet branch pipe. The difference between the first inlet pressure parameter and the first outlet pressure parameter is the first pressure difference parameter of the slurry flowing through the first filter element 1.

[0044] The second detection component includes a third pressure detection element and a fourth pressure detection element. The third pressure detection element is located inside the second inlet branch pipe, and the fourth pressure detection element is located inside the second outlet branch pipe. The third pressure detection element is suitable for detecting the second inlet pressure parameter of the slurry inside the second inlet branch pipe, and the fourth pressure detection element is suitable for detecting the second outlet pressure parameter of the slurry inside the second outlet branch pipe. The difference between the second inlet pressure parameter and the second outlet pressure parameter is the second pressure difference parameter of the slurry flowing through the second filter element 2.

[0045] The controller adjusts the direction of the first valve body and the second valve body according to the first pressure difference parameter or the second pressure difference parameter.

[0046] Specifically, by detecting the inlet and outlet pressures at the front and rear ends of the first filter element 1 and the second filter element 2 respectively, and calculating their difference as a pressure difference parameter, the unobstructed flow and filtration resistance of the filter elements can be directly reflected, facilitating the quantification of filtration performance. When the resistance of a filter element increases due to filter cake accumulation, the pressure difference parameter before and after it will increase significantly. The controller can identify this change in real time and promptly switch channels or issue maintenance prompts to prevent system failures or abnormal slurry flow caused by filter blockage. Using the pressure difference as a criterion to control the on / off direction of the electromagnetic diverting valve can avoid judgment errors caused by relying on a single pressure point, improving the accuracy and stability of channel switching. The system can estimate the filter life or adjust the switching frequency based on the real-time pressure difference trend, avoiding premature switching that wastes filter element life and avoiding delayed switching that causes abnormal system pressure, thus achieving more intelligent filtration efficiency management.

[0047] Understandably, placing the detection components separately on the inlet and outlet branch pipes facilitates clear wiring and reasonable layout, while also making it easier to send the detection signals to the controller for processing independently, which helps improve the maintainability and reliability of the system.

[0048] In some embodiments of the present invention, the first detection component includes a first flow detection element and a second flow detection element. The first flow detection element is disposed in the first inlet branch pipe, and the second flow detection element is disposed in the first outlet branch pipe. The first flow detection element is adapted to detect the first inlet flow parameter of the slurry in the first inlet branch pipe, and the second flow detection element is adapted to detect the first outlet flow parameter of the slurry in the first outlet branch pipe. The difference between the first inlet flow parameter and the first outlet flow parameter is the first flow difference parameter of the slurry after flowing through the first filter element 1.

[0049] The second detection component includes a third flow detection element and a fourth flow detection element. The third flow detection element is located in the second inlet branch pipe, and the fourth flow detection element is located in the second outlet branch pipe. The third flow detection element is suitable for detecting the second inlet flow parameter of the slurry in the second inlet branch pipe, and the fourth flow detection element is suitable for detecting the second outlet flow parameter of the slurry in the second outlet branch pipe. The difference between the second inlet flow parameter and the second outlet flow parameter is the second flow difference parameter of the slurry after flowing through the second filter element 2.

[0050] The controller adjusts the direction of the first valve body and the second valve body according to the first flow difference parameter or the second flow difference parameter.

[0051] Specifically, the flow difference can be used as a supplementary detection indicator to the pressure difference, enabling the judgment of filtration resistance changes from the perspective of slurry flow rate changes, making the filtration status judgment more comprehensive and reliable. When the filter element is partially blocked or the filter layer is compacted but has not yet caused a significant change in pressure difference, the flow difference can reflect the decrease in channel flow in advance, assisting the controller to respond in advance and improving the timeliness of anomaly identification. By controlling the on / off direction of the electromagnetic diverting valve based on the flow difference parameter calculated in real time by the controller, the system can more reasonably judge whether the filtration path needs to be switched, avoiding system fluctuations caused by frequent switching due to misjudgment.

[0052] Understandably, the controller can automatically determine whether to prioritize pressure difference or flow difference as the basis for regulation based on different operating conditions, construct a multi-parameter joint judgment logic, and improve the adaptability of the slurry filter under changing operating conditions. By recording and analyzing the trend of flow difference changes, the controller can predict the service life of the filter element and assess the decline in filtration efficiency, providing a quantitative basis for filter element replacement and improving operation and maintenance efficiency. In addition, by reasonably allocating the filtration path and maintaining flow balance, the controller helps to prevent single-channel overload or no-load operation, reduce energy consumption and improve filtration efficiency.

[0053] In some embodiments of the present invention, the filter element includes a mounting housing and a filter element disposed within the mounting housing. The top of the mounting housing is connected to an outlet pipe 4, and the bottom of the mounting housing is connected to an inlet pipe 3. A cleaning nozzle is provided on the top of the mounting housing, and the cleaning nozzle is adapted to spray cleaning liquid onto the filter element.

[0054] Specifically, by connecting the top of the housing to the outlet pipe 4 and the bottom to the inlet pipe 3, the slurry flows through the filter element from bottom to top. This facilitates the deposition and collection of solid particles on the filter element surface, and also facilitates subsequent cleaning operations. The cleaning nozzle located at the top can directly spray the filter element surface in a directional manner, eliminating the need for frequent disassembly and cleaning operations, improving system maintenance efficiency and operational continuity. Through periodic or real-time triggered cleaning operations, impurities accumulated on the filter element surface are effectively removed, reducing the risk of filter element clogging, slowing down the filtration efficiency decay process, and thus extending the service life of the filter element. The cleaning nozzle can be used in conjunction with the cleaning fluid circulation system to avoid the risk of contamination from external disassembly, making it suitable for slurry processing applications with high cleanliness requirements.

[0055] Understandably, by combining the detection components and the controller, the controller can trigger the cleaning program based on the detected pressure difference or flow difference parameters, thereby achieving on-demand cleaning and avoiding waste of cleaning fluid and system fluctuations caused by over-cleaning. By keeping the filter element clean, the system can continuously operate under conditions of low resistance and stable flow rate, thereby improving the consistency of slurry filtration and the reliability of the final product quality.

[0056] It should be noted that the cleaning solution is an ethanol solution.

[0057] In some embodiments of the present invention, the bottom of the mounting housing is further provided with a drain outlet, which can be used to drain cleaning fluid.

[0058] Specifically, after the cleaning nozzle sprays the cleaning fluid, the remaining cleaning fluid and filter residue inside the housing can be discharged through the bottom outlet, preventing the cleaning fluid from stagnating inside the housing and ensuring a clean filtration environment. During online cleaning, the independent outlet effectively isolates the cleaning fluid from the slurry, preventing mixing of the cleaning fluid and slurry during the cleaning process and thus avoiding fluctuations in product performance. The controller can link the cleaning nozzle and the outlet to achieve quantitative cleaning and directional discharge, supporting a fully automated cleaning process and improving the level of intelligence. The outlet can be connected to a centralized recycling or treatment system, facilitating the recycling and environmental treatment of the cleaning fluid, which aligns with the industrial development trend of green manufacturing and energy conservation.

[0059] In some embodiments of the present invention, a drying structure is provided inside the mounting housing, which is suitable for drying the filter element.

[0060] Specifically, after cleaning and draining, the drying structure can dry the filter element in a timely manner to prevent moisture or cleaning liquid residue from affecting the next cycle of slurry filtration, thus ensuring the continuity and consistency of the filtration effect. The drying structure can adopt methods such as hot air drying, vacuum drying, and radiation from heating elements, and the controller can set the drying sequence and parameters according to actual needs to achieve intelligent control.

[0061] Understandably, the cleaning, drainage, and drying functions are completed sequentially within the same housing, forming an integrated maintenance process. This facilitates the construction of a highly automated slurry filtration system and reduces the frequency of manual intervention.

[0062] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A slurry filter, characterized in that, include: The filter element is provided in multiple ways, and the multiple filter elements are arranged in parallel. An inlet pipe (3) is connected to the bottom of each of the filter elements to facilitate the introduction of slurry into the filter elements; The outlet pipe (4) is connected to the top of each of the plurality of filter elements to facilitate the discharge of slurry flowing through the filter elements; The detection components are provided in multiple locations, and the multiple detection components are located within the filter element to be adapted to respectively acquire a first parameter and / or a second parameter of the slurry after it flows through the filter element; A controller that controls the inlet pipe (3) and the outlet pipe (4) to be connected to any of the filter elements according to the first parameter and / or the second parameter.

2. The slurry filter according to claim 1, characterized in that, The filter element includes a first filter element (1) and a second filter element (2) arranged in parallel. The inlet pipe (3) includes a first main pipe, a first inlet branch pipe, a second inlet branch pipe and a first valve body. One end of the first inlet branch pipe and one end of the second inlet branch pipe are connected to the first main pipe through the first valve body. The first valve body controls the first inlet branch pipe to communicate with the first main pipe or controls the second inlet branch pipe to communicate with the first main pipe. The other end of the first inlet branch pipe is connected to the first filter element (1) and the other end of the second inlet branch pipe is connected to the second filter element (2). The outlet pipe (4) includes a second main pipe, a first outlet branch pipe, a second outlet branch pipe and a second valve body. One end of the first outlet branch pipe and one end of the second outlet branch pipe are connected to the second main pipe through the second valve body. The second valve body controls the first outlet branch pipe to communicate with the second main pipe or controls the second outlet branch pipe to communicate with the second main pipe. The other end of the first outlet branch pipe is connected to the first filter element (1) and the other end of the second outlet branch pipe is connected to the second filter element (2).

3. The slurry filter according to claim 2, characterized in that, The detection components include a first detection component and a second detection component. The first detection component is adapted to acquire the first parameter and / or the second parameter of the slurry after it flows through the first filter element (1). The second detection component is adapted to acquire the first parameter and / or the second parameter of the slurry after it flows through the second filter element (2).

4. The slurry filter according to claim 3, characterized in that, Both the first valve body and the second valve body are electromagnetic directional valves. The controller is adapted to receive the first parameter and the second parameter to control the first valve body and the second valve body to turn so that the first inlet branch pipe is connected to the first main pipe, the first outlet branch pipe is connected to the second main pipe, and the slurry flows through the first filter element (1). Alternatively, the second inlet branch pipe may be connected to the main stream pipe, and the second outlet branch pipe may be connected to the second main stream pipe, so that the slurry flows through the second filter element (2).

5. The slurry filter according to any one of claims 1 to 4, characterized in that, The first parameter is the flow rate difference parameter, and the second parameter is the pressure difference parameter.

6. The slurry filter according to claim 3, characterized in that, The first detection component includes a first pressure detection element and a second pressure detection element. The first pressure detection element is disposed in the first inlet branch pipe, and the second pressure detection element is disposed in the first outlet branch pipe. The first pressure detection element is adapted to detect the first inlet pressure parameter of the slurry in the first inlet branch pipe, and the second pressure detection element is adapted to detect the first outlet pressure parameter of the slurry in the first outlet branch pipe. The difference between the first inlet pressure parameter and the first outlet pressure parameter is the first pressure difference parameter of the slurry flowing through the first filter element (1). The second detection component includes a third pressure detection element and a fourth pressure detection element. The third pressure detection element is located inside the second inlet branch pipe, and the fourth pressure detection element is located inside the second outlet branch pipe. The third pressure detection element is adapted to detect the second inlet pressure parameter of the slurry in the second inlet branch pipe, and the fourth pressure detection element is adapted to detect the second outlet pressure parameter of the slurry in the second outlet branch pipe. The difference between the second inlet pressure parameter and the second outlet pressure parameter is the second pressure difference parameter of the slurry flowing through the second filter element (2). The controller adjusts the direction of the first valve body and the second valve body according to the first pressure difference parameter or the second pressure difference parameter.

7. The slurry filter according to claim 3, characterized in that, The first detection component includes a first flow detection element and a second flow detection element. The first flow detection element is disposed in the first inlet branch pipe, and the second flow detection element is disposed in the first outlet branch pipe. The first flow detection element is adapted to detect the first inlet flow parameter of the slurry in the first inlet branch pipe, and the second flow detection element is adapted to detect the first outlet flow parameter of the slurry in the first outlet branch pipe. The difference between the first inlet flow parameter and the first outlet flow parameter is the first flow difference parameter of the slurry after flowing through the first filter element (1). The second detection component includes a third flow detection element and a fourth flow detection element. The third flow detection element is disposed in the second inlet branch pipe, and the fourth flow detection element is disposed in the second outlet branch pipe. The third flow detection element is adapted to detect the second inlet flow parameter of the slurry in the second inlet branch pipe, and the fourth flow detection element is adapted to detect the second outlet flow parameter of the slurry in the second outlet branch pipe. The difference between the second inlet flow parameter and the second outlet flow parameter is the second flow difference parameter of the slurry after flowing through the second filter element (2). The controller adjusts the direction of the first valve body and the second valve body according to the first flow difference parameter or the second flow difference parameter.

8. The slurry filter according to claim 1, characterized in that, The filter element includes a mounting housing and a filter element disposed within the mounting housing. The top of the mounting housing is connected to the outlet pipe (4), and the bottom of the mounting housing is connected to the inlet pipe (3). A cleaning nozzle is provided on the top of the mounting housing, and the cleaning nozzle is adapted to spray cleaning liquid onto the filter element.

9. The slurry filter according to claim 8, characterized in that, The bottom of the mounting housing is also provided with a drain outlet, which can be used to drain cleaning fluid.

10. The slurry filter according to claim 8 or 9, characterized in that, The mounting housing is provided with a drying structure, which is adapted to dry the filter element.

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