Efficient movable graphene filter pressing device

Abstract

The utility model relates to an efficient movable graphene filter pressing device. The filter pressing device comprises a frame, a pneumatic control unit, a filtering assembly and a moving assembly, the frame comprises a bottom panel, a middle supporting plate and an outer frame; the pneumatic control unit comprises a supporting pneumatic triple piece, a reversing valve, an air cylinder, a floating connector, an ejector block and a push disc. The ejector block is fixed to the bottom of the air cylinder, the ejector block pushes the push disc, the pneumatic triple piece, the reversing valve and the air cylinder are installed on the outer frame, and the filtering assembly comprises a filtering barrel, a filtering plate, a guide cover and a waste liquid collecting barrel; the filter plate is installed at the bottom of the filter barrel, the guide cover is located between the filter plate and the waste liquid collecting barrel, the filter barrel is detachably installed on the middle supporting plate, and the waste acid collecting barrel is placed on the bottom panel. The structure is more optimized, the floating joint compensates installation errors, and the system stability is improved; the safety is good; the filter plate is matched with the guide cover, so that the filter plate is quickly disassembled and assembled, and the maintenance cost is reduced; and the equipment can move and is good in stability.

Description

A high-efficiency, portable graphene filter press device Technical Field

[0001] This utility model relates to a graphene pressure filter device, specifically a high-efficiency mobile graphene pressure filter device that is compact in structure, easy to operate, has high filtration efficiency, and is easy to move. Background Technology

[0002] Traditional filter presses are bulky, have fixed installation locations, and are inconvenient to move. While some improved filter presses in existing technology have made structural optimizations, they still suffer from drawbacks such as unstable pneumatic control and low waste liquid collection efficiency. The materials extruded by existing filter presses are typically neutral or weakly acidic. For strongly acidic substances, long-term use of the filter press leads to increased corrosion of the filter plates and accelerated aging of the cylinder piston rod, potentially causing cylinder jamming. This reduces both acid extrusion and filtration efficiency and increases equipment maintenance costs. Furthermore, insufficient sealing can lead to waste liquid leakage, endangering operator safety. Therefore, there is an urgent need for a high-efficiency, safe, stable, and easy-to-maintain filter press to extend equipment lifespan and reduce maintenance costs. Summary of the Invention

[0003] To address the aforementioned problems, the main objective of this invention is to provide a highly efficient and portable graphene pressure filter device that is compact in structure, easy to operate, has high filtration efficiency, and is convenient to move.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution: a high-efficiency mobile graphene pressure filter device, the high-efficiency mobile graphene pressure filter device comprising: a frame, a pneumatic control unit, a filter assembly, and a moving assembly.

[0005] The frame includes a bottom panel, a middle support plate, and an outer frame.

[0006] The pneumatic control unit includes a supporting pneumatic triplet, a reversing valve, a cylinder, a floating joint, a top block, and a push plate; the top block is fixed to the bottom of the cylinder, and the top block pushes the push plate; the pneumatic triplet, the reversing valve, and the cylinder are mounted on the outer frame.

[0007] The filtration assembly includes a filter barrel, a filter plate, a guide cover, and a waste liquid collection tank. The filter plate is installed at the bottom of the filter barrel, the guide cover is located between the filter plate and the waste liquid collection tank, the filter barrel is detachably installed on the middle support plate, and the waste acid collection tank is placed on the bottom panel.

[0008] The moving components are multiple casters mounted on the bottom of the bottom panel.

[0009] In a specific embodiment of this utility model, the pneumatic triplet is installed in the following order according to the air intake direction: air filter, pressure reducing valve and oil mist lubricator. A polytetrafluoroethylene hose is connected to the oil mist lubricator outlet, passes through a reversing valve, and then connects to the cylinder.

[0010] In a specific embodiment of this utility model, the push plate and the top block are fixed by screw connection, and the floating joint has its own external thread that mates with the threaded hole on the top block.

[0011] In a specific embodiment of this utility model, the filter plate is wrapped with filter cloth, and an O-ring is fitted on the pusher plate.

[0012] In a specific embodiment of this utility model, a protective cover is provided outside the floating joint.

[0013] In a specific embodiment of this utility model, a positioning block for positioning the waste liquid collection tank is provided on the bottom panel, and the positioning block is fixed to the bottom panel with screws.

[0014] In a specific embodiment of this utility model, at least one of the casters is provided with a brake pad to fix the entire filter press device to a stop.

[0015] In a specific embodiment of this utility model, the reversing valve is equipped with a mini silencer.

[0016] In a specific embodiment of this utility model, the upper and lower parts of the filter bucket are fixed by internal hexagonal head screws.

[0017] In a specific embodiment of this utility model, the bottom panel, the middle support plate, and the outer frame are fixed by welding.

[0018] The positive and progressive effects of this utility model are as follows: Compared with common technologies, the high-efficiency mobile graphene filter press provided by this utility model has the following advantages: 1. Strong corrosion resistance: Key contact components (such as filter plates, push plates, and top blocks) are made of 316L stainless steel, and non-critical support components are made of 304 stainless steel, which significantly improves corrosion resistance and adapts to the continuous processing of highly corrosive slurries. 2. Optimized structure: The pneumatic triple unit and the reversing valve work together to control the pressure precisely, reduce the risk of jamming, and ensure smooth up and down movement of the cylinder; the floating joint compensates for installation errors and improves system stability; the double seal of the O-ring and the floating joint prevents acidic waste liquid from splashing and improves safety; the filter plate and the guide cover cooperate to realize quick disassembly and assembly of the filter plate and reduce maintenance costs; the caster and frame combination design improves the stability of equipment movement. Attached Figure Description

[0019] Figure 1 is a perspective view of the overall structure of this utility model.

[0020] Figure 2 is a schematic diagram of the main structure of this utility model.

[0021] Figure 3 is a cross-sectional view AA of Figure 2.

[0022] Figure 4 is a magnified view of a portion of Figure 3.

[0023] The following are the names corresponding to the reference numerals in this utility model:

[0024] Frame 1, Reversing valve 2, Cylinder 3, Protective cover 4, Filter barrel 5, Waste liquid collection barrel 6, Casters 7, Pneumatic triplet 8, Push plate 9, Floating joint 10, Top block 11, O-ring 12, Filter plate 13, Guide cover 14, Positioning block 15, Mini muffler 16, Bottom panel 101, Middle support plate 102, Outer frame 103. Detailed Implementation

[0025] The preferred embodiments of this utility model are given below with reference to the accompanying drawings to illustrate the technical solution of this utility model in detail.

[0026] Figure 1 is a schematic diagram of the overall structure of this utility model, Figure 2 is a front view of this utility model, Figure 3 is a cross-sectional view AA of Figure 2. As shown in Figures 1-3, this utility model proposes a high-efficiency movable graphene pressure filter device. Figure 4 is a partial enlarged view of Figure 3. As shown in Figure 4, this utility model provides a high-efficiency movable graphene pressure filter device, which includes: a frame 1, a pneumatic control unit, a filter assembly, and a moving assembly; the frame 1 includes a bottom panel 101, a middle support plate 102, and an outer frame 103; the pneumatic control unit includes a supporting pneumatic triplet 8, a reversing valve 2, a cylinder 3, a floating joint 10, a top block 11, and a push plate 9; the top block 11 is fixed to the bottom of the cylinder 3, and the top block 11 pushes the push plate 9; the pneumatic triplet 8, the reversing valve 2, and the cylinder 3 are mounted on the outer frame 103.

[0027] The filtration assembly includes a filter barrel 5, a filter plate 13, a guide cover 14, and a waste liquid collection tank 6; the filter plate 13 is installed at the bottom of the filter barrel 5, the guide cover 14 is located between the filter plate 13 and the waste liquid collection tank 6, the filter barrel 5 is detachably installed on the middle support plate 102, and the waste acid collection tank 6 is placed on the bottom panel 101; the moving components are multiple casters 7 installed at the bottom of the bottom panel 101.

[0028] The push plate 9 and the top block 11 are fixed together with screws. The floating joint 10 has its own external thread that mates with the threaded hole on the top block 11. The filter plate 13 is wrapped with filter cloth, and an O-ring 12 is fitted on the push plate 9. A protective cover 4 is provided on the outside of the floating joint 10. The bottom panel may also be provided with a positioning block 15 for positioning the waste liquid collection tank 6, and the positioning block 15 is fixed to the bottom panel 101 with screws. At least one of the casters is provided with a brake pad to fix the entire filter press device to a stop; a mini muffler 16 may also be provided with the reversing valve; the upper and lower parts of the filter tank 6 can be fixed with hexagonal head screws. In this utility model, the bottom panel, the middle support plate, and the outer frame are fixed by welding.

[0029] Below is a specific example:

[0030] This utility model includes a frame 1, a pneumatic control unit, a filter assembly, and a moving assembly. The frame 1 consists of a bottom panel, a middle support plate, and an outer frame. The bottom panel holds a waste liquid collection tank 6 and has casters 7 installed below it. The middle support plate supports the filter tank 5. The outer frame supports the pneumatic triplet 8, the reversing valve 2, and the cylinder 3. The pneumatic control unit includes the pneumatic triplet 8, the reversing valve 2, the cylinder 3, the floating connector 10, the top block 11, and the push plate 9. According to the air intake direction, the pneumatic triplet 8 is installed in the following order: air filter, pressure reducing valve, and oil mist lubricator. A polytetrafluoroethylene hose is connected to the outlet of the oil mist lubricator, passes through the reversing valve 2, and then connects to the cylinder. The bottom plate of the cylinder 3 is connected to the floating connector 10 to help guide the cylinder 3 to coincide with the center position of the push plate 9. The top block 11 is placed above the push plate 9 to press it tightly. The outer surface of the push plate 9 is equipped with an O-ring 12 to enhance its sealing with the inner wall of the filter tank 5. The filtration assembly includes a filter barrel 5, a filter plate 13, a guide cover 14, and a waste liquid collection tank 6. The waste liquid collection tank 6 is placed below the filter plate 13 to hold the pressed product. The guide cover 14 separates the product from the waste liquid, reducing the risk of acidic substances splashing during the filtration process. The moving component consists of casters 7 installed at the bottom of the frame, which have a braking function to enable the movement and fixation of the filtration device.

[0031] The specific working process of this utility model is as follows:

[0032] 1. Feeding and Pre-compression Stage. First, the material to be compressed is wrapped in filter cloth, sealed, and smoothed out. It is then placed inside the filter barrel 5, forming a filter chamber between the bottom plate of cylinder 3 and the filter plate. The pneumatic triplet 8 connects to a PTFE hose to conduct air. Air enters from the front port of the air filter and exits from the rear port of the oil mist lubricator, then enters the cavity of cylinder 3 through the PTFE hose. By changing the air intake, pressure control is achieved, thereby driving the top block 11 and the pusher plate 9 to apply initial pressure to the bottom plate of cylinder 3, so that the mixture is initially evenly distributed.

[0033] 2. High-pressure compression and solid-liquid separation. The reversing valve 2 controls the cylinder 3 to continuously apply pressure, compressing the mixture and filter plate 13. Concentrated sulfuric acid (liquid) in the mixture penetrates the filter cloth under pressure and flows into the waste liquid collection tank 6 through the guide cover 14. The O-ring 12 ensures the filter chamber is sealed, preventing acid splashing; the guide cover 14 stabilizes the movement trajectory of the filter plate, preventing displacement during the filtration process.

[0034] 3. Unloading and recycling. After the filter press is completed, the pressure is released. Adjust the reversing valve 2 to switch the direction. The push plate 9 drives the cylinder 3 to retract, forming a discharge space for the filter cake (graphite solid). Then, the filter cloth is removed, and the trapped graphite filter cake is hung up. The waste liquid (concentrated sulfuric acid) is collected and treated in the collection tank 6.

[0035] In the actual implementation process, this filter press device is fixed. If it needs to be moved, it needs to be moved with casters 7.

[0036] The core components of this invention use excellent materials resistant to concentrated sulfuric acid corrosion (PTFE & 316L stainless steel) to filter strong acidic substances, extending their service life. At the same time, the pneumatic device design is optimized to improve smooth operation. In addition, the addition of casters breaks the limitations of traditional fixed filter presses, making filter pressing feasible in mobile working conditions.

[0037] The graphene pressure filter provided by this utility model achieves safe and efficient solid-liquid separation of concentrated sulfuric acid and graphite mixture through optimized design and the combination of pneumatic pressurization and corrosion-resistant components.

[0038] Compared with the prior art, this utility model has strong corrosion resistance: key contact parts (such as filter plates, push plates, and top blocks) are made of 316L stainless steel, and non-critical support parts are made of 304 stainless steel, which significantly improves corrosion resistance and adapts to the continuous processing of highly corrosive slurries.

[0039] Compared with existing technologies, this utility model has a more optimized structure: the pneumatic triplet and the reversing valve work together to precisely control pressure, reduce the risk of jamming, and ensure smooth cylinder movement; the floating joint compensates for installation errors and improves system stability; the double seal of the O-ring and the floating joint prevents acidic waste liquid from splashing, improving safety; the filter plate and guide cover work together to achieve quick filter plate disassembly and assembly, reducing maintenance costs; the caster and frame combination design improves the stability of equipment movement. Specifically, the pneumatic triplet and the reversing valve work together to control the cylinder. The pneumatic triplet ensures that compressed air undergoes purification, pressure regulation, and lubrication processes before entering the pneumatic equipment, thus significantly improving the overall system integrity and stability. The opening and closing of the reversing valve controls the entry and exit of compressed air inside the cylinder, thereby controlling the cylinder's lifting and lowering.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, portable graphene filter press, characterized in that: The high-efficiency mobile graphene filter press includes: a frame, a pneumatic control unit, a filter assembly, and a moving assembly; the frame includes a bottom panel, a middle support plate, and an outer frame; the pneumatic control unit includes a supporting pneumatic triplet, a reversing valve, a cylinder, a floating joint, a top block, and a push plate; the top block is fixed to the bottom of the cylinder and pushes the push plate; the pneumatic triplet, the reversing valve, and the cylinder are mounted on the outer frame; the filter assembly includes a filter barrel, a filter plate, a guide cover, and a waste liquid collection barrel; the filter plate is mounted at the bottom of the filter barrel, the guide cover is located between the filter plate and the waste liquid collection barrel, the filter barrel is detachably mounted on the middle support plate, and the waste acid collection barrel is placed on the bottom panel; the moving assembly consists of multiple casters mounted on the bottom of the bottom panel.

2. The high-efficiency mobile graphene filter press according to claim 1, characterized in that: According to the air intake direction, the pneumatic triplet is installed in the following order: air filter, pressure reducing valve and oil mist lubricator. A polytetrafluoroethylene hose is connected to the oil mist lubricator outlet, which then passes through the reversing valve and connects to the cylinder.

3. The high-efficiency mobile graphene filter press according to claim 1, characterized in that: The push plate and the top block are fixed by screw connection, and the floating joint has its own external thread that matches the threaded hole on the top block.

4. The high-efficiency mobile graphene filter press according to any one of claims 1-3, characterized in that: The filter plate is wrapped with filter cloth, and an O-ring is fitted on the push plate.

5. The high-efficiency mobile graphene filter press according to claim 1, characterized in that: The floating joint is equipped with a protective cover.

6. The high-efficiency mobile graphene filter press according to claim 1, characterized in that: The bottom panel is equipped with a positioning block to locate the waste liquid collection tank. The positioning block is fixed to the bottom panel with screws.

7. The high-efficiency mobile graphene filter press according to claim 1, characterized in that: At least one of the casters is equipped with a brake pad that keeps the entire filter press station in place.

8. The high-efficiency mobile graphene filter press according to claim 1, characterized in that: The reversing valve is equipped with a mini silencer.

9. The high-efficiency mobile graphene filter press according to claim 1, characterized in that: The upper and lower parts of the filter canister are fixed together with hexagonal head screws.

10. The high-efficiency mobile graphene filter press according to claim 1, characterized in that: The bottom panel, middle support plate, and outer frame are fixed by welding.

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