A high pressure filter press extrusion device

Abstract

This utility model relates to the field of solid-liquid separation technology, and in particular to a high-pressure filter press extrusion device, comprising a main body, a solid-liquid discharge assembly fixedly connected to the side of the main body, and a piston assembly disposed inside the solid-liquid discharge assembly; this utility model utilizes a hydraulic pump to provide a power source, generating high-pressure oil to drive the piston movement, selecting a hydraulic pump with appropriate displacement and pressure to ensure it can withstand working pressure and operate smoothly, the hydraulic valve group including a solenoid directional valve, a relief valve, and a pressure reducing valve, can precisely control the oil flow direction, pressure, and flow rate, ensuring the stability and safety of the extrusion process, using well-known brand hydraulic valves to reduce the risk of leakage and failure, using a high-strength alloy steel piston with a specially treated surface to improve wear resistance and corrosion resistance, and firmly connected to the piston rod to ensure stable pushing of the filter plate for pressing operation under high pressure, the piston rod is machined with high precision to ensure coaxiality and straightness.

Description

Technical Field

[0001] This utility model relates to the field of solid-liquid separation technology, specifically a high-pressure filter press extrusion device. Background Technology

[0002] A high-pressure filter press is a device used for solid-liquid separation. Its main function is to separate the liquid from the solid particles in a material by applying high pressure to filter plates. It utilizes a high-pressure hydraulic system to drive pistons or cylinders to apply pressure to the filter plates, thus achieving solid-liquid separation. By increasing pressure, it forces the filtrate to drain quickly while simultaneously compressing solid particles into a filter cake, achieving a highly efficient filtration effect. It has significant application value in wastewater treatment, chemical industry, and mining. When selecting a high-pressure filter press, it is necessary to consider factors such as processing capacity, pressure range, and ease of operation based on specific application requirements, and to cooperate with reliable manufacturers to obtain the best results. The widespread application of high-pressure filter presses will help improve industrial production efficiency, reduce resource waste, and also contribute to environmental protection.

[0003] Traditional filter presses suffer from low efficiency, high filter cake moisture content, and complex operation during solid-liquid separation. Existing filter press extrusion devices mostly employ simple mechanical or hydraulic systems, but these have the following drawbacks: uneven extrusion pressure leads to uneven stress on the filter plates, affecting filter cake quality; hydraulic systems are complex, have high maintenance costs, and are prone to leakage under high pressure; and they cannot flexibly adjust extrusion pressure and time according to material characteristics. Therefore, a high-pressure filter press extrusion device is needed to improve upon these problems. Utility Model Content

[0004] To address the problems of low efficiency, high filter cake moisture content, and complex operation in traditional filter presses during solid-liquid separation, existing filter press extrusion devices mostly employ simple mechanical or hydraulic systems. However, these systems suffer from the following drawbacks: uneven extrusion pressure leads to uneven stress on the filter plates, affecting filter cake quality; hydraulic systems are complex, have high maintenance costs, and are prone to leakage under high pressure; and they cannot flexibly adjust the extrusion pressure and time according to material characteristics. The purpose of this invention is to provide a high-pressure filter press extrusion device to solve the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-pressure filter press extrusion device includes a main body, a solid-liquid discharge assembly fixedly connected to the side of the main body, and a piston assembly disposed inside the solid-liquid discharge assembly;

[0007] The main body includes an oil tank, a hydraulic pump is fixedly connected to the side of the oil tank, and an electromagnetic reversing valve, an overflow valve and a pressure reducing valve are installed on the top of the hydraulic pump.

[0008] The piston assembly includes a piston rod, a piston body is fixedly connected to the side of the piston rod, and a pressure plate is fixedly connected to the side of the piston body.

[0009] As a preferred embodiment of this utility model, the piston body is made of high-strength alloy steel and its surface is specially treated, and the pressure plate is made of high-quality steel.

[0010] As a preferred embodiment of this utility model, the solid-liquid discharge assembly includes a processing chamber, and a filter plate is installed inside the processing chamber.

[0011] As a preferred embodiment of this utility model, the filter plate has a filtrate flow channel inside, and the filtrate flow channel has a plurality of channels.

[0012] As a preferred embodiment of this utility model, a liquid drain pipe is fixedly connected to the bottom of the treatment chamber, and a filter chamber is fixedly connected to the side of the treatment chamber.

[0013] As a preferred embodiment of this utility model, a support is provided on the side of the processing chamber, the processing chamber is disposed inside the support, and there are two supports.

[0014] As a preferred embodiment of this utility model, an oil level gauge and an oil temperature gauge are installed on the side of the oil tank.

[0015] As a preferred embodiment of this utility model, the bottom of the oil tank is fixedly connected to a support rod, and four support rods are provided.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, a hydraulic pump is used to provide a power source to generate high-pressure oil, which drives the piston to move. A hydraulic pump with appropriate displacement and pressure is selected to ensure that it can withstand the working pressure and operate smoothly. The hydraulic valve group includes a solenoid directional valve, a relief valve, and a pressure reducing valve, which can accurately control the oil flow direction, pressure and flow rate to ensure the stability and safety of the extrusion process. Well-known brand hydraulic valves are used to reduce the risk of leakage and failure.

[0018] 2. In this utility model, a high-strength alloy steel piston is used, with a specially treated surface to improve wear resistance and corrosion resistance. It is firmly connected to the piston rod, ensuring stable pressure on the filter plate for pressing. The piston rod is precision machined to ensure coaxiality and straightness, bearing the pressure of the filter plate. The contact surface with the piston is flat and smooth, uniformly transmitting pressure to the filter plate. The material is high-quality steel with sufficient strength and rigidity to prevent deformation. Different filter plates are selected according to the properties and requirements of the filtered material. The surface has filtrate channels for easy collection and discharge of filtrate. The filter plate has good flexibility and compressive strength, maintaining stable performance during repeated pressing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the hydraulic system structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the piston assembly structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the solid-liquid discharge assembly of this utility model.

[0023] In the diagram: 1. Main body; 101. Oil tank; 102. Oil level gauge; 103. Oil thermometer; 104. Support rod; 105. Hydraulic pump; 106. Solenoid directional valve; 107. Overflow valve; 108. Pressure reducing valve; 2. Piston assembly; 201. Piston rod; 202. Piston body; 203. Pressing plate; 204. Filter plate; 205. Filtrate flow channel; 3. Solid-liquid discharge assembly; 301. Processing chamber; 302. Support; 303. Liquid drain pipe; 304. Filter chamber. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] For examples, please refer to Figures 1-4 This utility model provides a technical solution:

[0026] A high-pressure filter press extrusion device includes a main body 1, a solid-liquid discharge assembly 3 fixedly connected to the side of the main body 1, and a piston assembly 2 disposed inside the solid-liquid discharge assembly 3.

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the main body 1 includes an oil tank 101, a hydraulic pump 105 is fixedly connected to the side of the oil tank 101, and an electromagnetic directional valve 106, an overflow valve 107, and a pressure reducing valve 108 are installed on the top of the hydraulic pump 105. The piston assembly 2 includes a piston rod 201, a piston body 202 is fixedly connected to the side of the piston rod 201, and a pressure plate 203 is fixedly connected to the side of the piston body 202. The hydraulic pump 105 provides the power source to generate high-pressure oil, which drives the piston body 202 to move. The hydraulic pump 105 with appropriate displacement and pressure is selected to ensure that it can withstand the working pressure and operate smoothly. The hydraulic valve group includes an electromagnetic directional valve 106, an overflow valve 107, and a pressure reducing valve 108, which can accurately control the oil flow direction, pressure, and flow rate to ensure the stability and safety of the extrusion process. Well-known brand hydraulic valves are used to reduce the risk of leakage and failure.

[0028] The piston body 202 is made of high-strength alloy steel with a special surface treatment. The clamping plate 203 is made of high-quality steel. The solid-liquid discharge assembly 3 includes a processing chamber 301. A filter plate 204 is installed inside the processing chamber 301. Several filtrate channels 205 are provided inside the filter plate 204. A liquid discharge pipe 303 is fixedly connected to the bottom of the processing chamber 301. A filter chamber 304 is fixedly connected to the side of the processing chamber 301. A support 302 is provided on the side of the processing chamber 301. The processing chamber 301 is located inside the support 302. There are two supports 302. The assembly utilizes a high-strength alloy steel piston with a surface... Through special treatment, the wear resistance and corrosion resistance are improved. It is firmly connected to the piston rod 201 to ensure stable pushing of the filter plate 204 for pressing under high pressure. The piston rod 201 is machined with high precision to ensure coaxiality and straightness, bears the pressure of the filter plate 204, and has a smooth and flat contact surface with the piston to evenly transmit pressure to the filter plate 204. It is made of high-quality steel with sufficient strength and rigidity to prevent deformation. Different filter plates 204 are selected according to the properties and requirements of the filtered material. The surface has filtrate channels 205 to facilitate filtrate collection and discharge. The filter plate 204 has good flexibility and compressive strength and can maintain stable performance during repeated compression.

[0029] In this embodiment, as Figure 1 and Figure 4As shown, an oil level gauge 102 and an oil temperature gauge 103 are installed on the side of the oil tank 101. Four support rods 104 are fixedly connected to the bottom of the oil tank 101. Through real-time monitoring by the oil level gauge 102 and the oil temperature gauge 103, operators can adjust the working status of the hydraulic system in a timely manner to ensure sufficient hydraulic oil supply and good lubrication, thereby improving operating efficiency. Appropriate oil level and temperature can reduce energy loss in the hydraulic system, improve the overall operating efficiency of the equipment, and reduce energy costs. Because problems such as insufficient oil level or abnormal oil temperature can be detected in time, maintenance and adjustments can be made in advance to avoid unexpected downtime due to equipment failure, thereby improving equipment availability and production efficiency. The real-time monitoring function of the oil level gauge 102 and the oil temperature gauge 103 enables maintenance personnel to detect potential problems in advance, take preventative maintenance measures, and extend the service life of equipment components.

[0030] The working process of this utility model is as follows: When the high-pressure filter press extrusion device designed in this scheme is working, the hydraulic pump 105 is started, and the high-pressure oil pushes the piston to move the pressing plate 203 towards the filter plate 204, pressing the filter plate 204 sequentially until the preset pressing force is reached. At this time, the overflow valve 107 is opened to maintain the system pressure constant and ensure that the filter plate 204 is in a pressed state during the filtration process. After the pressing is completed, the filtrate is discharged under pressure and through the filtrate flow channel 205 of the filter plate 204, while the solid particles are trapped in the filter chamber 304 to form a filter cake. When the filter cake in the filter chamber 304 reaches a certain thickness, the extrusion mechanism can be started again, and the hydraulic system further increases the pressure, so that the filter plate 204 extrudes the filter cake. The filtrate is further discharged under high pressure, improving the dryness and dewatering effect of the filter cake. The extrusion process can be carried out in multiple stages, gradually increasing the pressure to obtain a better dewatering effect.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure filter press extrusion device, comprising a main body (1), characterized in that: The solid-liquid discharge assembly (3) is fixedly connected to the side of the main body (1), and a piston assembly (2) is provided inside the solid-liquid discharge assembly (3). The main body (1) includes an oil tank (101), a hydraulic pump (105) is fixedly connected to the side of the oil tank (101), and an electromagnetic reversing valve (106), an overflow valve (107) and a pressure reducing valve (108) are installed on the top of the hydraulic pump (105). The piston assembly (2) includes a piston rod (201), a piston body (202) is fixedly connected to the side of the piston rod (201), and a pressure plate (203) is fixedly connected to the side of the piston body (202).

2. The high-pressure filter press extrusion device according to claim 1, characterized in that, The piston body (202) is made of high-strength alloy steel and its surface is specially treated. The clamping plate (203) is made of high-quality steel.

3. The high-pressure filter press extrusion device according to claim 1, characterized in that, The solid-liquid discharge assembly (3) includes a processing chamber (301), and a filter plate (204) is installed inside the processing chamber (301).

4. The high-pressure filter press extrusion device according to claim 3, characterized in that, The filter plate (204) has a filtrate flow channel (205) inside, and the filtrate flow channel (205) has a plurality of channels.

5. The high-pressure filter press extrusion device according to claim 3, characterized in that, The bottom of the treatment chamber (301) is fixedly connected to a liquid drain pipe (303), and the side of the treatment chamber (301) is fixedly connected to a filter chamber (304).

6. The high-pressure filter press extrusion device according to claim 3, characterized in that, The processing chamber (301) is provided with a support (302) on its side, and the processing chamber (301) is located inside the support (302). There are two supports (302).

7. The high-pressure filter press extrusion device according to claim 1, characterized in that, An oil level gauge (102) and an oil temperature gauge (103) are installed on the side of the oil tank (101).

8. The high-pressure filter press extrusion device according to claim 1, characterized in that, The bottom of the oil tank (101) is fixedly connected to a support rod (104), and four support rods (104) are provided.

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