A filter device

Abstract

The application discloses a filtering device, which comprises a water storage tank and a pressure filter tank, the pressure filter tank is arranged at the bottom of the water storage tank, a switch valve is arranged between the pressure filter tank and the water storage tank, the switch valve is used for controlling the connection and disconnection between the inner cavity of the water storage tank and the inner cavity of the pressure filter tank, a feeding port and a water pumping port are arranged on the water storage tank, a water pumping port filtering device is arranged on the water pumping port, the pressure filter tank is provided with a pressure filter tank water outlet, and a pressure filter tank filter core is arranged on the pressure filter tank water outlet. The filtering device has the advantages of simple structure, low implementation difficulty and low implementation cost, and can improve the filtering efficiency, is not prone to blockage in the filtering process, has high filtering continuity and high separation precision in actual application.

Description

Technical Field

[0001] This invention relates to the field of solid-liquid separation, and in particular to a filtration device. Background Technology

[0002] In modern industrial production, low-solids slurries (solid content usually ≤5%) are widely used in industries such as new energy materials, mine tailings, chemical refining, and environmental water treatment. Low-solids slurries are characterized by fine solid particles, low content, large viscosity fluctuations, easy filtration, and easy membrane clogging, making solid-liquid separation difficult. Moreover, these slurries are easily oxidized, and their oxygen content increases when exposed to air, leading to a decline in some of the slurry's properties. Therefore, they can only be filtered and collected in a vacuum environment.

[0003] Existing equipment for processing low-solids slurries generally suffers from problems such as low filtration efficiency, easy clogging, poor continuity, insufficient separation accuracy, and high operation and maintenance costs, making it difficult to meet the demands of modern industry for high throughput, high precision, low energy consumption, continuous operation, and easy maintenance. Therefore, developing a high-efficiency filtration device for low-solids slurries that is compact, has good anti-clogging performance, high filtration efficiency, can operate continuously, and has low operation and maintenance costs has significant engineering application value and market demand.

[0004] In view of this, the purpose of this technical solution is to provide a new technical solution to solve the existing technical problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a filtration device that effectively solves the technical problems of low filtration efficiency, easy clogging, poor continuity, insufficient separation accuracy, and high operation and maintenance costs in the prior art.

[0006] The technical solution adopted by this invention to solve its technical problem is: A filtration device, comprising: A water storage tank with an inlet and an outlet; A water inlet filter device is installed at the water inlet; A filter press tank is located at the bottom of the water storage tank. The filter press tank has a filter press tank outlet. A switch valve is provided between the filter press tank and the water storage tank. The switch valve is used to control the connection between the water storage tank and the filter press tank. The water inlet filtration device includes a filter element that extends into the water storage tank, and the outlet of the filter press is provided with a filter press filter element.

[0007] As a further improvement to the above technical solution, the water inlet filtration device includes a detachable water inlet filter element bracket and a water inlet filter element disposed on the water inlet filter element bracket. The water inlet filter element bracket is detachably disposed on the water inlet, and the water inlet filter element extends into the inner cavity of the water storage tank.

[0008] As a further improvement to the above technical solution, the water inlet filter element includes a first filter section and a second filter section.

[0009] As a further improvement to the above technical solution, the outlet of the filter press is located at the bottom of the filter press, and the filter element of the filter press includes the outlet filter paper.

[0010] As a further improvement to the above technical solution, the water inlet is connected to a water pumping device via a pipe.

[0011] As a further improvement to the above technical solution, a feed pump is provided at the feed inlet.

[0012] As a further improvement to the above technical solution, the water storage tank includes a main tank body, the bottom of which is connected to the filter press tank.

[0013] As a further improvement to the above technical solution, the main tank is provided with a vent and an observation window.

[0014] As a further improvement to the above technical solution, the main tank includes a tank cylindrical section, a tank conical section disposed at the bottom of the tank cylindrical section, and a tank upper section disposed at the top of the tank cylindrical section, wherein a cover plate is disposed on the tank upper section.

[0015] As a further improvement to the above technical solution, the water storage tank is provided with a water storage tank outlet at the bottom, the filter press tank is provided with a filter press tank inlet at the top, and the switch valve is connected between the water storage tank outlet and the filter press tank inlet.

[0016] As a further improvement to the above technical solution, the filter press has an upper inlet, and the switch valve is located at the upper inlet of the filter press.

[0017] As a further improvement to the above technical solution, a support base is provided on the side of the water tank, and the support base is fixedly mounted on the mounting plate.

[0018] As a further improvement to the above technical solution, a rinsing nozzle is provided inside the water tank.

[0019] The present invention also provides: A production line comprising the aforementioned filtration device.

[0020] The beneficial effects of this invention are as follows: This invention provides a filtration device comprising a water storage tank and a filter press tank. The water storage tank is equipped with a water inlet and a water inlet filtration device, while the filter press tank is equipped with a filter cartridge. This effectively improves filtration efficiency, prevents clogging during the filtration process, ensures high filtration continuity, and achieves high separation accuracy. This filtration device has a simple overall structure, low implementation cost, and helps improve production efficiency.

[0021] In summary, this type of filtration device effectively solves the technical problems of low filtration efficiency, easy clogging, poor continuity, insufficient separation accuracy, and high operation and maintenance costs existing in the prior art. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is an assembly diagram of a filtration device according to an embodiment of the present invention; Figure 2 This is another assembly schematic diagram of a filtration device according to an embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of a filtering device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the water inlet filter device in an embodiment of the present invention; Figure 5 This is a schematic diagram of the application state of a filtration device in an embodiment of the present invention.

[0024] In the picture: 1. Water storage tank; 100. Main tank body; 101. Tank body cylindrical section; 102. Tank body conical section; 1021. First arc-shaped connection area; 1022. Water storage tank outlet; 103. Upper part of tank body; 1031. Second arc-shaped connection area; 104. Upper connecting sleeve; 11. Vent; 12. Feed inlet; 13. Drainage outlet; 131. Drainage outlet mounting base; 14. Observation window; 15. Cover plate; 16. Support base; 2. Filter press tank; 21. Filter press tank outlet; 22. Filter press tank inlet; 3. Switch valve; 4. Drainage outlet filtration device; 41. Drainage outlet filter element bracket; 411. Bracket main board; 412. Bracket handle; 413. Filter element mounting sleeve; 42. Drainage outlet filter element; 5. Feed pump; 6. Flushing nozzle; 7. Mounting plate. Detailed Implementation

[0025] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other, as described above. Figure 1-2 .

[0026] Specific reference Figure 1-4 The present invention provides: A filtration device includes a water storage tank 1 and a filter press 2. The water storage tank 1 is located at the top, and the filter press 2 is located at the bottom. The filter press 2 is located at the bottom of the water storage tank 1, and a switch valve 3 is provided between the filter press 2 and the water storage tank 1. In this embodiment, the switch valve 3 is located between the bottom of the water storage tank 1 and the top of the filter press 2. Sealing devices are provided between the switch valve 3 and the water storage tank 1, and between the switch valve 3 and the filter press 2. These sealing devices are used to achieve a seal between the switch valve 3 and the water storage tank 1 and the filter press 2. In specific implementations, existing sealing devices, such as sealing rings, can be used to achieve the above-mentioned sealing performance. The switch valve 3 is used to control the communication between the inner cavity of the water storage tank 1 and the inner cavity of the filter press 2. For example, when the switch valve 3 is open, the inner cavity of the water storage tank 1 is connected to the inner cavity of the filter press 2; when the switch valve 3 is closed, the inner cavity of the water storage tank 1 and the inner cavity of the filter press 2 are isolated from each other. In this embodiment, the filter press 2 has an upper inlet, and the switch valve 3 is located at the upper inlet of the filter press 2. In some specific embodiments, the switch valve 3 is a butterfly valve. In other embodiments, provided that performance requirements are met, the switch valve 3 may also be of other types, and a suitable selection can be made according to the actual implementation needs of the implementer.

[0027] In some specific embodiments, the water storage tank 1 is provided with an inlet 12 and an outlet 13. An outlet filter 4 is provided on the outlet 13, wherein the outlet filter 4 includes a filter element extending into the interior of the water storage tank 1. Specifically, the filter press 2 has a filter press outlet 21, on which a filter press filter element is provided. The filter press filter element extends into the inner cavity of the water storage tank 1. A rinsing nozzle 6 is provided inside the water storage tank 1, and the rinsing nozzle 6 is used to rinse solid particles in the slurry mixture on the inner wall of the water storage tank 1. In this embodiment, the inlet 12 is located on the upper side wall of the water storage tank 1, and the outlet 13 is located on the middle side wall of the water storage tank 1.

[0028] In the specific implementation of this invention, in the initial state, the switch valve 3 is in the open state, and the inner cavity of the water storage tank 1 is interconnected with the inner cavity of the filter press tank 2. Then, the mixture of slurry and water to be filtered is fed into the water storage tank 1 through the feed port 12, and the valve of the feed port is closed after feeding is completed. An external water pumping device continuously pumps water out of the slurry mixture inside the water storage tank 1 through the water pumping port 12. The water pumping port 12 is externally connected to a water pumping device, such as a water pump. During the process of the water pumping device pumping water through the water pumping port 12, the solid particles in the slurry mixture are filtered out by the water pumping port filter device 4 set at the water pumping port 13 and retained in the water storage tank 1, preventing the solid particles in the slurry mixture from being pumped away. During the above process, the solid slurry particles inside the water storage tank 1 gradually settle to the bottom of the water storage tank 1. During the water pumping process, the high-pressure flushing nozzle 6 continuously washes the slurry solid particles adhering to the side wall of the water storage tank 1, flushing them to the bottom of the tank. The slurry accumulated at the bottom of the tank flows into the filter press 2. Once all the slurry in the water storage tank 1 has flowed into the filter press 2, the switch valve 3 closes. The filter cartridge in the filter press 2 then filters the slurry. The water filtered from the filter press 2 flows out through the filter press outlet 21, and the solid slurry undergoes secondary filtration within the filter press 2. After filtration, the solid slurry powder is removed from the bottom of the filter press 2, completing the filtration process. This filtration device effectively improves filtration efficiency through dual filtration of the pumping port filter device 4 and the filter cartridge in the filter press. It is simple to operate, has low implementation costs, and features a compact structure, good anti-clogging performance, high filtration efficiency, continuous operation, and low maintenance costs.

[0029] In some specific embodiments, the water inlet filtration device 4 includes a detachable water inlet filter element support 41 and a water inlet filter element 42 disposed on the water inlet filter element support 41. The water inlet filter element support 41 is detachably disposed on the water inlet 13, and the water inlet filter element 42 extends into the inner cavity of the water storage tank 1. The detachable water inlet filter element support 41 facilitates the installation and replacement of the water inlet filter element 42, improving operational convenience. In this embodiment, the water inlet filter element 42 includes a first filtration section and a second filtration section. Specifically, the first filtration section includes a metal powder pressed filter element, and the second filtration section includes PP filter paper. Dual filtration is achieved through the first and second filtration sections, improving filtration performance, preventing solid particles in the slurry mixture from being drawn away, preventing material waste and material contamination, and improving economic efficiency. In this embodiment, the water inlet filter element 42 is a 5µm-class filter element, providing sufficient filtration performance. In some other embodiments, provided that performance requirements are met, implementers may also use other forms of filtration devices as the water inlet filter element in this technical solution.

[0030] In this embodiment, the water inlet filter element bracket 41 includes a bracket main board 411, a bracket handle 412, and a filter element mounting sleeve 413 located in the middle of the bracket main board 411. The water inlet filter element 42 is disposed at the filter element mounting sleeve 413 and extends into the inner cavity of the water storage tank 1. The outer end of the filter element mounting sleeve 413 is connected to an external water pumping device via a water pumping pipe. The water storage tank 1 has a water inlet mounting seat 131 at its water inlet 13, and the water inlet mounting seat 131 has a flat mounting surface. The bracket main board 411 is detachably mounted on the mounting surface of the water inlet mounting seat 131. To ensure sealing performance, a sealing gasket is provided between the bracket main board 411 and the mounting surface. In addition, the bracket main board 411 has mounting holes, and the mounting surface has fixing screw holes. Screws are passed through the mounting holes and threaded onto the fixing screw holes on the mounting surface to complete the installation of the water inlet filter element bracket 41. When it is necessary to disassemble and maintain the water inlet filter device 4, simply unscrew the screws. After removing the screws, the entire water inlet filter device 4 can be easily removed using the bracket handle 412, making the operation convenient.

[0031] In some other embodiments, to facilitate quick installation of the water inlet filter device 4, a quick-release connector adapted to the water inlet filter element bracket 41 can be provided on the side of the water tank 1. The quick-release connector and the water inlet filter element bracket 41 can be quickly connected and quickly disassembled. Since the water inlet filter device 4 is a consumable and its performance needs to be checked frequently, the quick-release connector can greatly improve the installation, maintenance, and testing efficiency of the entire device, effectively saving time and reducing downtime waste caused by the above maintenance process, thereby improving production efficiency. Specifically, the quick-release connector can adopt existing quick-disassembly connection structures such as snap-fit ​​or threaded connection, and the appropriate connection structure can be selected according to the implementation needs. A sealing device is provided at the quick-release connector and / or the water inlet filter element bracket 41 to ensure the sealing performance of the water inlet 13.

[0032] In some specific embodiments, the outlet 21 of the filter press is located at the bottom of the filter press 2. The filter element of the filter press includes outlet filter paper, which is disposed at the outlet 21 for filtration in the filter press 2. In practical applications, the slurry particles entering the filter press 2 are filtered for moisture by the outlet filter paper, causing the slurry remaining inside the filter press 2 to solidify, facilitating subsequent removal, transportation, and reuse. In some specific embodiments, a detachable filter paper mounting plate is provided at the bottom of the filter press 2. The outlet filter paper can be installed and replaced through the mounting plate. The connection between the mounting plate and the filter press 2 is detachable, which facilitates the maintenance and replacement of the outlet filter paper and the removal of the solid slurry filtered from inside the filter press 2.

[0033] In some specific embodiments, a feed pump 5 is provided at the feed inlet 12. The feed pump 5 has an on / off valve function, which controls whether to supply material to the storage tank 1. The inlet of the feed pump 5 is connected to an external slurry supply source via a pipeline, and the outlet of the feed pump 5 is connected to the feed inlet 12 of the storage tank 1. In some specific embodiments, the outlet of the feed pump 5 is directly and sealed to the feed inlet 12. In some gas-based embodiments, a feed inlet connector can also be provided at the feed inlet 12, and the outlet of the feed pump 5 is fixedly connected to the feed inlet connector.

[0034] In some specific embodiments, the water storage tank 1 includes a main tank body 100, the bottom of which is connected to the filter press tank 2. The main tank body 100 is provided with a vent 11 and an observation window 14. The vent 11 is connected to an external air source via a pipe, which may be a positive or negative pressure source. This external air source can provide positive or negative pressure to the internal space of the water storage tank 1 as needed. In this embodiment, the water storage tank can be evacuated using an external negative pressure source to slow down the oxidation rate of the slurry, thereby improving filtration efficiency and filtration quality. The observation window 14 is provided with transparent glass, allowing the operator to observe the real-time condition inside the water storage tank 1. In this embodiment, the vent 11 is located at the upper part of the water storage tank 1, and a vent connector is provided at the vent 11, which is connected to an external positive or negative pressure source. The observation window 14 is located at the upper part of the water tank 1. Specifically, an observation window mounting sleeve is provided at the upper part of the water tank 1. The observation window mounting sleeve has an observation window mounting channel inside, and the observation window 14 is located at the observation window mounting channel. Subject to meeting performance requirements such as hardness and corrosion resistance, the observation window 14 can be made of glass or other transparent materials. To ensure the observation effect of the observation window 14, the observation window mounting channel is approximately positioned directly opposite the center of the inner cavity of the water tank 1, avoiding excessive obstruction of the view and ensuring that the observation window 14 obtains the maximum observation angle, thus improving the user experience.

[0035] In some specific embodiments, the main tank 100 includes a cylindrical tank portion 101, a conical tank portion 102 disposed at the bottom of the cylindrical tank portion 101, and an upper tank portion 103 disposed at the top of the cylindrical tank portion 101. A cover plate 15 is disposed on the upper tank portion 103. In actual implementation of the present invention, the rinsing nozzle 6 is connected to the bottom of the cover plate 15. When the rinsing nozzle 6 is working, the solid slurry inside the water storage tank 1 can be introduced into the filter press tank 2 through the conical tank portion 102 at the bottom of the water storage tank 1. In this embodiment, the conical tank portion 102 is a cone with a 60° inclination, and the cylindrical tank portion 101 is cylindrical. In some specific embodiments, the main tank 100 can be a metal tank or a non-metal tank. The cover plate 15 can be fixedly connected to or detachably connected to the upper tank portion 103. The cover plate 15 is provided with a nozzle connector for supplying water to the flushing nozzle 6. The nozzle connector is connected to an external water source via a pipe, and extends internally into the main tank 100 and communicates with the flushing nozzle 6. The flushing nozzle 6 includes a main nozzle rod with an inner cavity and a secondary nozzle rod. The main nozzle rod is connected to the nozzle connector, and multiple secondary nozzle rods are located at the bottom of the main nozzle rod. The inner cavity of the secondary nozzle rod communicates with the inner cavity of the main nozzle rod, and multiple spray holes are evenly distributed on the secondary nozzle rod. When the flushing nozzle 6 is working, external water is supplied to the inner cavity of the main nozzle rod through the nozzle connector. The water entering the inner cavity of the main nozzle rod then flows into the inner cavity of the secondary nozzle rod, and finally, the water in the inner cavity of the secondary nozzle rod is sprayed outward through the spray holes to flush the inner wall of the water storage tank 1, preventing slurry particles from adhering to the inner wall of the water storage tank 1 and avoiding slurry waste. In addition, in order to improve the spraying effect of the rinsing nozzle 6, the rinsing nozzle 6 is a rotatable nozzle. When the rinsing nozzle 6 is working, the rinsing nozzle 6 will rotate synchronously to avoid incomplete rinsing and improve the rinsing effect.

[0036] In some specific embodiments, the water storage tank 1 has a water storage tank outlet 1022 at its bottom, and the filter press tank 2 has a filter press tank inlet 22 at its upper part. The switch valve 3 is connected between the water storage tank outlet 1022 and the filter press tank inlet 22. In this embodiment, the water storage tank outlet 1022 is located at the bottom of the conical portion 102 of the tank body. Sealing rings are provided between the upper inlet of the switch valve 3 and the water storage tank outlet 1022, and between the lower outlet of the switch valve 3 and the filter press tank inlet 22, to ensure sealing performance. Furthermore, the switch valve 3 can be connected to the water storage tank outlet 1022 and the filter press tank inlet 22 by bolts or quick-release clamps.

[0037] In some specific embodiments, an upper connecting sleeve 104 is provided at the middle position of the upper part 103 of the tank body. The inner cavity of the upper connecting sleeve 104 communicates with the inner cavity of the water storage tank 1. The cover plate 15 is provided on the upper part of the upper connecting sleeve 104. The flushing nozzle 6 is disposed in the inner cavity of the upper connecting sleeve 104, and the internal space of the upper connecting sleeve 104 forms an installation space to accommodate the flushing nozzle 6.

[0038] In one embodiment, the can 100 is a metal can. When manufacturing the metal can, the cylindrical part 101, the conical part 102, and the upper part 103 can be manufactured separately first, and then the cylindrical part 101, the conical part 102, and the upper part 103 can be welded together to form a whole, thereby forming the can 100.

[0039] In this embodiment, the upper part of the conical tank portion 102 has a first arc-shaped connecting area 1021, the inner wall of which has a first arc-shaped connecting surface, and the upper edge of the first arc-shaped connecting area 1021 connects to the lower edge of the cylindrical tank portion 101. This structural design creates a relatively smooth transition inner wall at the connection between the conical tank portion 102 and the cylindrical tank portion 101, minimizing slurry accumulation at the connection. Similarly, a second arc-shaped connecting area 1031 is provided at the lower part of the upper tank portion 103, the inner wall of which has a second arc-shaped connecting surface, and the lower edge of which connects to the upper edge of the cylindrical tank portion 101. This structural design also creates a relatively smooth transition inner wall at the connection between the upper conical tank portion 103 and the cylindrical tank portion 101, minimizing slurry accumulation at the connection.

[0040] Reference Figure 5 In some specific embodiments, a support base 16 is provided on the side of the water tank 1, and the support base 16 is fixedly mounted on the mounting plate 7. In this embodiment, there are four support bases 16, evenly distributed around the water tank 1. The support bases 16 and the water tank 1 can be connected by integral molding or welding. Specifically, in this embodiment, the support base 16 is a cylindrical support base. The four support bases 16 are welded to the upper edge of the side wall of the conical part 102 of the tank body. The four support bases 16 are vertically arranged, and a connecting plate is provided at the bottom of the support base 16. The connecting plate is fixedly connected to the mounting plate 7 by screws, and then fixedly installed in the preset installation position by the mounting plate 7 to complete the installation of the entire filtration device.

[0041] In addition, a clearance groove is provided on the mounting plate 7, through which the conical part 102 of the tank body and the lower part of the filter press 2 pass and extend to the bottom of the mounting plate 7.

[0042] Based on the above-described filtration device, the present invention also provides: A production line including the aforementioned filtration device, wherein one step of the production line involves solid-liquid separation, the solid-liquid separation step being performed using the filtration device.

[0043] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A filtration device, characterized in that: It includes a water storage tank (1) with a feed inlet (12) and a drain outlet (13); A water inlet filter device (4) is installed at the water inlet (13). A filter press (2) is located at the bottom of the water storage tank (1). The filter press (2) has a filter press outlet (21). A switch valve (3) is provided between the filter press (2) and the water storage tank (1). The switch valve (3) is used to control the connection between the water storage tank (1) and the filter press (2). The water inlet filtration device (4) includes a filter element that extends into the water storage tank (1), and the water outlet (21) of the filter press is provided with a filter press filter element.

2. The filtration device according to claim 1, characterized in that: The water inlet filter device (4) includes a detachable water inlet filter element bracket (41) and a water inlet filter element (42) disposed on the water inlet filter element bracket (41). The water inlet filter element bracket (41) is detachably disposed on the water inlet (13), and the water inlet filter element (42) extends into the inner cavity of the water storage tank (1).

3. The filtration device according to claim 2, characterized in that: The water inlet filter element (42) includes a first filter section and a second filter section.

4. The filtration device according to claim 1, characterized in that: The outlet (21) of the filter press is located at the bottom of the filter press (2), and the filter element of the filter press includes the outlet filter paper.

5. The filtration device according to claim 1, characterized in that: The water inlet (13) is connected to a water pumping device via a pipe.

6. The filtration device according to claim 1, characterized in that: The water storage tank (1) includes a main tank body (100), the bottom of which is connected to the filter press (2).

7. The filtration device according to claim 6, characterized in that: The main tank (100) is provided with a vent (11) and an observation window (14).

8. The filtration device according to claim 6, characterized in that: The main tank (100) includes a tank cylindrical part (101), a tank conical part (102) disposed at the bottom of the tank cylindrical part (101), and a tank upper part (103) disposed at the upper part of the tank cylindrical part (101), and a cover plate (15) is provided on the tank upper part (103).

9. The filtration device according to claim 1, characterized in that: The water tank (1) is provided with a support base (16) on its side, and the support base (16) is fixedly mounted on the mounting plate (7).

10. The filtration device according to any one of claims 1-9, characterized in that: The water tank (1) is equipped with a flushing nozzle (6).

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