Automatic mold opening and mud unloading filter press

Abstract

The utility model discloses an automatic mold opening and mud unloading filter press which comprises a filter press main body, an electric track is arranged on one side of the filter press main body, a plate pulling trolley is arranged on the electric track in a sliding manner, a plurality of filter plates are arranged on the filter press main body in a sliding manner, liquid outlet pipes are fixedly arranged on one sides of the filter plates, and the liquid outlet pipes are communicated with inner cavities of the filter plates; an oil cylinder is fixedly installed on one side of the filter press body, a pressing plate is fixedly installed on an output piston rod of the oil cylinder and installed on one side of the filter plate on the outermost edge, a collecting tank is fixedly installed on one side of the filter press body and installed under a liquid outlet pipe communicated with the collecting tank, and a flow meter is fixedly installed on one side of the collecting tank. A liquid inlet pipe is fixedly mounted on one side, far away from the oil cylinder, of the filter press main body; a pressure gauge is fixedly mounted on the liquid inlet pipe; according to the automatic filter plate attaching and slag discharging process, manual operation is greatly reduced, the labor intensity is reduced, the plate pulling trolley pulls the filter plates open in order, the slag discharging is more thorough in cooperation with triple acting force of sludge falling, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, specifically an automatic mold opening and mud unloading filter press. Background Technology

[0002] As a key piece of equipment for solid-liquid separation, filter presses are widely used in mud treatment, chemical production, and other scenarios. However, traditional filter presses have many drawbacks: insufficient precision in controlling the pressure of the filter plates, which can easily lead to leakage or low filtration efficiency during filtration; lack of real-time monitoring of the filtration process, requiring manual judgment of the filter membrane clogging status, which can easily result in over-filtration or insufficient filtration, affecting the treatment effect; and reliance on manual or semi-automatic operation for unloading the sludge, resulting in low efficiency in opening the filter plates, high labor intensity, and incomplete sludge removal, which can affect the filtration effect of the next round. Therefore, an automatic mold opening and unloading filter press is needed to meet these needs. Summary of the Invention

[0003] The purpose of this utility model is to provide an automatic mold opening and unloading sludge filter press to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An automatic mold-opening and unloading sludge filter press includes a filter press body, an electric track on one side of the filter press body, a trolley for pulling plates slidably mounted on the electric track, a plurality of filter plates slidably mounted on the filter press body, a hydraulic cylinder fixedly mounted on one side of the filter press body, a pressure plate fixedly mounted on the output piston rod of the hydraulic cylinder, and the pressure plate mounted on one side of the outermost filter plate. The filter press body is characterized by having a collection tank fixedly mounted on one side of the filter press body, a flow meter fixedly mounted on one side of the collection tank, and an inlet pipe fixedly mounted on the side of the filter press body away from the hydraulic cylinder, with a pressure gauge fixedly mounted on the inlet pipe.

[0006] The filter plate includes a filter frame, a filter membrane is fixedly installed inside the filter membrane, frame ears are fixedly installed on both sides of the filter frame, and an outlet pipe is fixedly installed on one side of the filter frame.

[0007] The filter frame is slidably mounted on the filter press body via frame lugs, and the liquid outlet pipe communicates with the internal cavity of the filter frame;

[0008] The collection tank is installed directly below the outlet pipe. A connecting pipe is fixedly installed on one side of the collection tank. The connecting pipe is used to connect the collection tank and the flow meter. The two ends of the connecting pipe are connected to the collection tank and the flow meter, respectively.

[0009] Preferably, the end of the inlet pipe away from the filter press body is connected to an external slurry pump, and the pressure gauge is fixedly installed on the inlet pipe connecting the filter press body and the slurry pump, with the pressure gauge's detection end communicating with the inside of the inlet pipe.

[0010] Preferably, limit switches are fixedly installed at both ends of the electric track, and the pull plate trolley is slidably installed on the electric track. The electric track is used to drive the pull plate trolley to move on the electric track. A pair of pull lugs are rotatably installed on the pull plate trolley, and a torsion spring is fixedly installed on the rotating shaft connected to the pull lugs and the pull plate trolley. The pull plate trolley pulls the frame lugs to drive the filter plate to move.

[0011] Preferably, the inlet pipe is installed through and fixedly mounted on the inner wall of the filter press body, and the inlet pipe is connected to the filter plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The automated filter plate bonding and unloading process greatly reduces manual operation and labor intensity. The plate pulling trolley pulls the filter plate in an orderly manner. With the triple force of mud and sludge falling off, the unloading is more thorough, improving work efficiency and the accuracy of the next round of filtration.

[0014] (2) The dual-parameter linkage monitoring of pressure and flow can accurately determine the clogging status of the filter membrane, avoid ineffective filtration, and reduce energy waste while ensuring filtration effect; the sealed filter chamber and centralized filtrate collection structure reduce leakage and filtrate pollution; the flow meter counts the flow in real time, which is convenient for production management. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an automatic mold-opening and mud-discharging filter press proposed in this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A;

[0017] Figure 3 for Figure 1 Enlarged view of point B;

[0018] Figure 4 This is a three-dimensional structural diagram of an automatic mold-opening and mud-discharging filter press proposed in this utility model;

[0019] Figure 5 for Figure 4 Enlarged view of point C.

[0020] In the diagram: 1. Filter press body; 5. Oil cylinder; 6. Pressure plate; 2. Filter plate; 20. Filter membrane; 21. Filter frame; 22. Frame lug; 23. Liquid outlet pipe; 3. Collection tank; 30. Connecting pipe; 7. Flow meter; 8. Liquid inlet pipe; 9. Pressure gauge; 10. Electric track; 4. Plate pulling trolley; 40. Pulling lug; 11. Limit switch. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] Please see Figure 1-5 This utility model provides a technical solution: an automatic mold opening and unloading sludge filter press, including a filter press body 1, an electric track 10 on one side of the filter press body 1, a pull plate trolley 4 slidably installed on the electric track 10, a plurality of filter plates 2 slidably installed on the filter press body 1, an oil cylinder 5 fixedly installed on one side of the filter press body 1, a pressure plate 6 fixedly installed on the output piston rod of the oil cylinder 5, the pressure plate 6 is installed on one side of the outermost filter plate 2, a collection tank 3 fixedly installed on one side of the filter press body 1, a flow meter 7 fixedly installed on one side of the collection tank 3, and an inlet pipe 8 fixedly installed on the side of the filter press body 1 away from the oil cylinder 5, and a pressure gauge 9 fixedly installed on the inlet pipe 8;

[0023] The filter plate 2 includes a filter frame 21, a filter membrane 20 is fixedly installed inside the filter membrane 20, frame ears 22 are fixedly installed on both sides of the filter frame 21, and an outlet pipe 23 is fixedly installed on one side of the filter frame 21.

[0024] The filter frame 21 is slidably mounted on the filter press body 1 via the frame lugs 22, and the liquid outlet pipe 23 communicates with the internal cavity of the filter frame 21;

[0025] The collection tank 3 is installed directly below the outlet pipe 23. A connecting pipe 30 is fixedly installed on one side of the collection tank 3. The connecting pipe 30 is used to connect the collection tank 3 and the flow meter 7. The two ends of the connecting pipe 30 are respectively connected to the collection tank 3 and the flow meter 7.

[0026] The inlet pipe 8 is connected to an external slurry pump at one end away from the filter press body 1. The pressure gauge 9 is fixedly installed on the inlet pipe 8 connecting the filter press body 1 and the slurry pump. The detection end of the pressure gauge 9 is connected to the inside of the inlet pipe 8. Limit switches 11 are fixedly installed at both ends of the electric track 10. The pull plate trolley 4 is slidably installed on the electric track 10. The electric track 10 is used to drive the pull plate trolley 4 to move on the electric track 10. A pair of pull ears 40 are rotatably installed on the pull plate trolley 4. A torsion spring is fixedly installed on the rotating shaft connected to the pull ears 40 and the pull plate trolley 4. The pull plate trolley 4 pulls the frame ear 22 through the pull ears 40 to drive the filter plate 2 to move. The inlet pipe 8 passes through and is fixedly installed on the inner wall of the filter press body 1. The inlet pipe 8 is connected to the filter plate 2.

[0027] The working principle is as follows: When in use, the pull plate trolley 4 is located at the maximum position near the side of the oil cylinder 5, and the liquid inlet pipe 8 is connected to the external slurry pump. The slurry pump can be linked with the main controller. At this time, the slurry pump is in the closed state. The oil cylinder 5 works to push out the piston rod. When the piston rod is pushed out, it drives the pressure plate 6 to move. When the pressure plate 6 moves, it pushes the filter plate 2 to the side of the liquid inlet pipe 8. As the piston rod continues to push out, the filter plate 2 gradually comes into contact with the inner wall of the filter press body 1 on the side of the liquid inlet pipe 8, and several filter plates 2 come closer to each other and come into contact until all filter plates 2 come into contact and the outermost filter plate 2 comes into contact with the inner wall of the filter press body 1. When the piston rod on the oil cylinder 5 continues to push out, it will be subject to a certain resistance. When the resistance reaches a certain threshold, the oil cylinder 5 stops, and the piston rod and pressure plate 6 maintain this pressure state. At this time, the filter plate 2 is pushed tightly and fits together.

[0028] At this time, the main controller turns on the slurry pump switch, and the slurry pump pumps the slurry into the filter plate 2 through the inlet pipe 8. The slurry is filtered in the filter frame formed by the filter plates 2. The sludge is intercepted between the two filter plates 2 by the filter membrane 20. The liquid is discharged through the filter membrane 20 and the filter frame 21 through the outlet pipe 23. The discharged liquid flows into the collection tank 3, and then is transported by the collection tank 3 to the connecting pipe 30. After passing through the flow meter 7, it is discharged into the pipeline subsequently connected to the flow meter 7. When the liquid passes through the flow meter 7, the flow meter 7 can detect the flow rate.

[0029] When sludge accumulates on the filter membrane 20, the filtration effect of the filter membrane 20 deteriorates, and the liquid has difficulty passing through the filter membrane 20. At this time, the water output of the outlet pipe 23 will gradually decrease. Since the slurry cannot be discharged from the inlet pipe 8, the pressure inside the inlet pipe 8 increases. When the pressure gauge 9 detects that the pressure inside the inlet pipe 8 has increased and the flow meter 7 cannot detect the liquid flow, the sludge discharge operation can be carried out directly.

[0030] During slag unloading, the main controller shuts off the slurry pump again, and the oil cylinder 5 begins to unload oil, driving the piston rod to retract. When the piston rod retracts, it drives the pressure plate 6 to move, and the pressure plate 6 separates from the filter plate 2. When the piston rod on the oil cylinder 5 is fully retracted, the plate pulling trolley 4 starts to work. The plate pulling trolley 4 moves repeatedly, sequentially pulling apart two adjacent filter plates 2 through the pull lug 40 and the frame lug 22. The structure and working principle of the plate pulling trolley 4, as well as the electrical control system and electrical control logic, are the same as existing technologies, and its detailed structure and principle will not be described in detail in this article.

[0031] When two adjacent filter plates 2 separate, the slurry will fall off due to the combined effects of the shaking caused by the movement of the filter frame 21, the elastic tension generated when the filter membrane 20 recovers, and the weight of the slurry itself. The limit switches 11 at both ends of the electric track 10 are used to limit the maximum position of the filter press body 1 during movement.

[0032] After all the filter plates 2 are pulled apart, the slag unloading operation is completed. Then the main controller will repeat the above steps to make the piston rod on the oil cylinder 5 push the filter plates 2 to fit together through the pressure plate 6, and carry out the next round of slag filtering operation.

[0033] 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. An automatic mold-opening and unloading sludge filter press, comprising a filter press body (1), an electric track (10) provided on one side of the filter press body (1), a pull plate trolley (4) slidably mounted on the electric track (10), a plurality of filter plates (2) slidably mounted on the filter press body (1), a hydraulic cylinder (5) fixedly mounted on one side of the filter press body (1), a pressure plate (6) fixedly mounted on the output piston rod of the hydraulic cylinder (5), the pressure plate (6) being mounted on one side of the outermost filter plate (2), characterized in that: A collection tank (3) is fixedly installed on one side of the filter press body (1), a flow meter (7) is fixedly installed on one side of the collection tank (3), and an inlet pipe (8) is fixedly installed on the side of the filter press body (1) away from the oil cylinder (5), and a pressure gauge (9) is fixedly installed on the inlet pipe (8). The filter plate (2) includes a filter frame (21), a filter membrane (20) is fixedly installed inside the filter membrane (20), frame ears (22) are fixedly installed on both sides of the filter frame (21), and an outlet pipe (23) is fixedly installed on one side of the filter frame (21). The filter frame (21) is slidably mounted on the filter press body (1) via the frame lug (22), and the liquid outlet pipe (23) is connected to the internal cavity of the filter frame (21); The collection tank (3) is installed directly below the outlet pipe (23). A connecting pipe (30) is fixedly installed on one side of the collection tank (3). The connecting pipe (30) is used to connect the collection tank (3) and the flow meter (7). The two ends of the connecting pipe (30) are connected to the collection tank (3) and the flow meter (7) respectively.

2. The automatic mold-opening and mud-discharging filter press according to claim 1, characterized in that: The inlet pipe (8) is connected to an external slurry pump at one end away from the filter press body (1). The pressure gauge (9) is fixedly installed on the inlet pipe (8) connecting the filter press body (1) and the slurry pump. The detection end of the pressure gauge (9) is connected to the inside of the inlet pipe (8).

3. The automatic mold-opening and mud-discharging filter press according to claim 2, characterized in that: Limit switches (11) are fixedly installed at both ends of the electric track (10). The pull plate trolley (4) is slidably installed on the electric track (10). The electric track (10) is used to drive the pull plate trolley (4) to move on the electric track (10). A pair of pull ears (40) are rotatably installed on the pull plate trolley (4). A torsion spring is fixedly installed on the rotating shaft connected to the pull ears (40) and the pull plate trolley (4). The pull plate trolley (4) pulls the frame ear (22) through the pull ears (40) to drive the filter plate (2) to move.

4. An automatic mold-opening and mud-discharging filter press according to claim 3, characterized in that: The liquid inlet pipe (8) is installed through and fixedly mounted on the inner wall of the filter press body (1), and the liquid inlet pipe (8) is connected to the filter plate (2).

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