Special hydraulic station for feed pump of filter press

Abstract

The utility model relates to the technical field of hydraulic pressure, and discloses a special hydraulic station for a feed pump of a filter press, which comprises a hydraulic oil tank, a first motor is fixedly mounted at the top of the hydraulic oil tank, and a valve group is fixedly mounted at the top of the hydraulic oil tank. The annular sleeve block slides leftwards on the surface of the first conveying pipe through external force, at the moment, the L-shaped annular block extrudes the spring leftwards, and meanwhile the L-shaped annular block is far away from the limiting clamping ball, so that extrusion force on the top of the limiting clamping ball disappears; due to the elastic force recovery effect of a flexible film fixedly installed on the inner side of a circular groove, a limiting clamping ball originally clamped into the inner side of a trapezoidal sleeve block restores to the original position in the direction away from the trapezoidal sleeve block, compared with a traditional device, the filter screen can be taken out in time to be cleaned, then excessive damage to the filter screen is effectively prevented, and the service life of the filter screen is prolonged; meanwhile, the oil conveying pressure can be kept normal, and the situation that the filter screen is blocked to affect insufficient oil pressure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic technology, and more specifically, to a dedicated hydraulic station for a filter press feed pump. Background Technology

[0002] With the continuous development of industrial production, the importance of solid-liquid separation technology in many fields is becoming increasingly prominent. As a high-efficiency solid-liquid separation equipment, the performance of filter press directly affects production efficiency and product quality. As a key power system of filter press, the dedicated hydraulic station for filter press feed pump provides stable and precise pressure support for operations such as pressing, holding, and releasing filter plates. In industries such as mining, chemical, environmental protection, and food, the requirements for automation, efficiency, and safety of filter presses are constantly increasing, prompting continuous improvement and innovation in dedicated hydraulic station technology for filter presses to meet the growing industrial demands.

[0003] The existing hydraulic station for the feed pump of the filter press used for mud produces excessive wear and debris due to the continuous high-load operation of the machinery. This debris leads to impurities in the oil, which, over time, clogs the filter screen in the hydraulic station's oil delivery pipes. Failure to replace or maintain the filter screen for an extended period will result in excessive damage, reduced service life, and inability to maintain normal oil delivery pressure. Furthermore, the clogged filter screen can cause insufficient oil pressure. Therefore, improvements and optimizations are needed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a special hydraulic station for the feed pump of a filter press, which has the advantage of facilitating the cleaning of the filter screen.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dedicated hydraulic station for a filter press feed pump, comprising a hydraulic oil tank, a first motor fixedly mounted on the top of the hydraulic oil tank, a valve assembly fixedly mounted on the top of the hydraulic oil tank, an oil pump device fixedly mounted on the right side of the first motor and extending into the hydraulic oil tank, the oil pump device and the valve assembly being connected via a connecting pipe, a first conveying pipe fixedly connected to the right side of the oil pump device, an annular sleeve block movably fitted onto the outer surface of the first conveying pipe, a limiting ring fixedly fitted onto the outer surface of the first conveying pipe and located inside the annular sleeve block, and an L-shaped annular block fixedly fitted onto the inner wall of the annular sleeve block and located to the right of the limiting ring. A spring connects the limiting ring and the L-shaped annular block. A circular groove is formed on the outer surface of the first conveying pipe, located on the right side of the L-shaped annular block, and the circular grooves are evenly spaced in a circumferential array. A limiting ball is placed inside each of the circular grooves. A second conveying pipe is movably installed inside the first conveying pipe. A trapezoidal sleeve is fixedly fitted onto the outer surface of the second conveying pipe, and the trapezoidal sleeve is located inside the circular groove and the limiting ball. A flexible film is fixedly installed inside the circular groove, and the flexible film is located between the limiting ball and the trapezoidal sleeve. Limiting blocks are fixedly installed on the upper and lower sides inside the second conveying pipe. A filter screen is placed on the left side of the limiting block inside the second conveying pipe.

[0006] As a preferred embodiment of this utility model, a rectangular hollow frame is fixedly installed inside the hydraulic oil tank and extends into the hydraulic oil tank. A flow divider block is fixedly installed on the inner side of the rectangular hollow frame and the flow divider block is arranged in a linear array. A second guide groove is opened on the outer surface of the flow divider block. A support block is fixedly installed on the top of the rectangular hollow frame. A fixing plate is fixedly installed on the top of the support block. A second motor is fixedly installed on the inner side of the fixing plate. A spiral fan is fixedly installed at the end of the output shaft of the second motor and is located directly above the flow divider block.

[0007] As a preferred embodiment of the present invention, a limiting ring located inside the annular sleeve is fixedly sleeved on the outer surface of the first conveying pipe, and the limiting ring is circular and tightly attached to the inner wall of the annular sleeve.

[0008] As a preferred technical solution of this utility model, a first guide groove is provided on the inner side of the fixing plate, and the first guide groove is presented on the inner periphery of the fixing plate.

[0009] As a preferred embodiment of this utility model, limit blocks are fixedly installed on the upper and lower sides inside the second conveying pipe, and the limit blocks are rectangular protrusions.

[0010] As a preferred technical solution of this utility model, the top of the hydraulic oil tank is provided with an oil collection groove, and the oil collection groove is presented around the top of the hydraulic oil tank.

[0011] As a preferred embodiment of this utility model, a base is fixedly installed at the bottom of the hydraulic oil tank, and the base is located around the bottom of the hydraulic oil tank.

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

[0013] 1. This utility model uses external force to make the annular sleeve slide to the left on the surface of the first conveying pipe. At this time, the L-shaped annular block will squeeze the spring to the left, and at the same time, the L-shaped annular block moves away from the limiting ball, so the squeezing force on the top of the limiting ball will disappear. Due to the elastic recovery effect of the flexible film fixedly installed inside the circular groove, the limiting ball that was originally stuck inside the trapezoidal sleeve returns to its original position away from the trapezoidal sleeve, releasing the restriction on the trapezoidal sleeve, so as to separate the second conveying pipe from the first conveying pipe. Thus, the filter screen in the second conveying pipe can be replaced smoothly. When the second conveying pipe needs to be reinstalled, the external force on the annular sleeve disappears. Due to the elastic recovery effect of the spring, the L-shaped annular block moves to the right, thereby squeezing the limiting ball to re-clamp into the trapezoidal sleeve, realizing the fixation between the first and second conveying pipes. Compared with the traditional device, this device can remove the filter screen for cleaning in time, effectively preventing excessive damage to the filter screen and extending its service life. At the same time, it can maintain the normal operation of the oil conveying pressure, avoid the filter screen clogging affecting the oil pressure, and improve the efficiency of maintenance and replacement.

[0014] 2. This utility model uses the output shaft of a second motor to drive a spiral fan to rotate. When the spiral fan rotates, the spiral suction force generated will concentrate the hot air generated by the oil inside the hydraulic oil tank into the rectangular hollow frame. Then the hot air will pass through a linear array of diverting blocks, and the second guide groove opened on the outer surface of the diverting blocks will effectively accelerate the flow rate of the hot air, reduce obstruction, and increase the heat dissipation rate. Compared with traditional devices, this device can effectively discharge to the outside through the guide groove, thereby reducing the heat inside the oil tank, solving the problem of excessive oil temperature reducing oil viscosity, and enhancing the oil pumping efficiency. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the limiting ball structure of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the fixing plate structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the rectangular hollow frame structure of this utility model.

[0021] In the diagram: 1. Hydraulic oil tank; 2. First motor; 3. Oil pump device; 4. Valve group; 5. Connecting pipe; 6. First delivery pipe; 7. Annular sleeve; 8. Limiting ring; 9. L-shaped annular block; 10. Spring; 11. Limiting ball; 12. Flexible membrane; 13. Circular groove; 14. Second delivery pipe; 15. Trapezoidal sleeve; 16. Limiting block; 17. Filter screen; 18. Rectangular hollow frame; 19. Support block; 20. Fixing plate; 21. First guide channel; 22. Diverter block; 23. Second guide channel; 24. Second motor; 25. Spiral fan; 26. Oil collection tank; 27. Base. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 6As shown, this utility model provides a dedicated hydraulic station for a filter press feed pump, including a hydraulic oil tank 1. A first motor 2 is fixedly installed on the top of the hydraulic oil tank 1, and a valve assembly 4 is fixedly installed on the top of the hydraulic oil tank 1. An oil pump device 3 is fixedly installed on the right side of the first motor 2, and the oil pump device 3 extends into the hydraulic oil tank 1. The oil pump device 3 and the valve assembly 4 are connected through a connecting pipe 5. A first conveying pipe 6 is fixedly connected to the right side of the oil pump device 3. An annular sleeve 7 is movably sleeved on the outer surface of the first conveying pipe 6. A limiting ring 8 located inside the annular sleeve 7 is fixedly sleeved on the outer surface of the first conveying pipe 6. An L-shaped annular block 9 located to the right of the limiting ring 8 is fixedly sleeved on the inner wall of the annular sleeve 7. A spring connects the limiting ring 8 and the L-shaped annular block 9. 10. A circular groove 13 is provided on the outer surface of the first conveying pipe 6, located to the right of the L-shaped annular block 9. The circular grooves 13 are evenly spaced in a circumferential array. A limiting ball 11 is placed on the inner side of each circular groove 13. A second conveying pipe 14 is movably installed inside the first conveying pipe 6. A trapezoidal sleeve 15 is fixedly sleeved on the outer surface of the second conveying pipe 14, and the trapezoidal sleeve 15 is located inside the circular groove 13 and the limiting ball 11. A flexible film 12 is fixedly installed inside the circular groove 13, and the flexible film 12 is located between the limiting ball 11 and the trapezoidal sleeve 15. Limiting blocks 16 are fixedly installed on the upper and lower sides inside the second conveying pipe 14. A filter screen 17 is placed on the left side of the limiting block 16 inside the second conveying pipe 14.

[0024] When the first motor 2 is started, the oil pump device 3 will draw oil from the hydraulic oil tank 1 and pressurize it. Then, the valve group 4, through the connecting pipe 5, allows the high-pressure oil in the oil pump device 3 to be transported through the first delivery pipe 6 and the annular sleeve 7 to the hydraulic cylinder in the filter press. Because the oil contains impurities, it is easy to become clogged after long-term oil transportation, affecting the oil transportation effect. When it is necessary to replace the inner filter screen 17, the annular sleeve 7 can be slid to the left on the surface of the first delivery pipe 6 by external force. At this time, the L-shaped annular block 9 will squeeze the spring 10 to the left, causing the spring 10 to undergo elastic deformation, and the elasticity of the spring 10 is within the bearing range. At the same time, the L-shaped annular block 9 moves away from the limiting ball 11, so that the squeezing force on the top of the limiting ball 11 will disappear. Due to the elastic recovery effect of the flexible film 12 fixedly installed inside the circular groove 13, the limiting ball 11, which was originally stuck inside the trapezoidal sleeve 15, returns to its original position away from the trapezoidal sleeve 15, releasing the restriction on the trapezoidal sleeve 15, so as to separate the second conveying pipe 14 from the first conveying pipe 6. Thus, the filter screen 17 inside the second conveying pipe 14 can be replaced smoothly. When the second conveying pipe 14 needs to be reinstalled, the external force exerted by the worker on the annular sleeve 7 disappears. Due to the elastic recovery effect of the spring 10, the L-shaped annular block 9 is pushed to the right, thereby squeezing the limiting ball 11 to be stuck back inside the trapezoidal sleeve 15, realizing the fixation between the first conveying pipe 6 and the second conveying pipe 14.

[0025] External force causes the annular sleeve 7 to slide to the left on the surface of the first conveying pipe 6. At this time, the L-shaped annular block 9 will press the spring 10 to the left, and the L-shaped annular block 9 will move away from the limiting ball 11, causing the pressing force on the top of the limiting ball 11 to disappear. Due to the elastic recovery effect of the flexible film 12 fixedly installed inside the circular groove 13, the limiting ball 11, which was originally stuck inside the trapezoidal sleeve 15, returns to its original position away from the trapezoidal sleeve 15, releasing the restriction on the trapezoidal sleeve 15, so that the second conveying pipe 14 can be separated from the first conveying pipe 6, thereby allowing the filter screen 17 inside the second conveying pipe 14 to be processed smoothly. When the second delivery pipe 14 needs to be reinstalled, the external force exerted on the annular sleeve 7 by the operator is removed. Due to the restoring effect of the elastic force of the spring 10, the L-shaped annular block 9 is pushed to the right, thereby squeezing the limiting ball 11 to re-engage into the inner side of the trapezoidal sleeve 15, thus fixing the first delivery pipe 6 and the second delivery pipe 14. Compared with the traditional device, this device can remove the filter screen for cleaning in time, effectively preventing excessive damage to the filter screen and extending its service life. At the same time, it can maintain the normal operation of the oil delivery pressure, avoid the filter screen clogging affecting the oil pressure, and improve the efficiency of maintenance and replacement.

[0026] The hydraulic oil tank 1 has a rectangular hollow frame 18 fixedly installed inside, and the rectangular hollow frame 18 extends into the hydraulic oil tank 1. The inner side of the rectangular hollow frame 18 has a diverter block 22 fixedly installed, and the diverter block 22 is arranged in a linear array. The outer surface of the diverter block 22 is provided with a second guide groove 23. The top of the rectangular hollow frame 18 has a support block 19 fixedly installed. The top of the support block 19 has a fixed plate 20 fixedly installed. The inner side of the fixed plate 20 has a second motor 24 fixedly installed. The output shaft end of the second motor 24 has a spiral fan 25 fixedly installed and is located directly above the diverter block 22.

[0027] When the operator starts the second motor 24, the output shaft will drive the propeller fan 25 to start rotating. The propeller fan 25 is based on the existing mechanism and the principle of a propeller. When the propeller fan 25 rotates, the spiral suction force generated will cause the hot air generated by the oil inside the hydraulic oil tank 1 to be concentrated and attracted into the rectangular hollow frame 18. Then the hot air will pass through the linear array of diversion blocks 22. The second guide groove 23 opened on the outer surface of the diversion blocks 22 will effectively accelerate the flow rate of the hot air, reduce obstruction, and increase the heat dissipation rate.

[0028] The output shaft of the second motor 24 drives the spiral fan 25 to start rotating. When the spiral fan 25 rotates, the spiral suction force generated will cause the hot air generated by the oil inside the hydraulic oil tank 1 to be concentrated and attracted into the rectangular hollow frame 18. Then the hot air will pass through the linear array of diverting blocks 22, and the second guide groove 23 opened on the outer surface of the diverting block 22 will effectively accelerate the flow rate of the hot air, reduce the obstruction, and increase the heat dissipation rate. Compared with the traditional device, this device can effectively discharge to the outside through the guide groove, thereby reducing the heat inside the oil tank, solving the problem of excessive oil temperature reducing oil viscosity, and enhancing the oil pumping efficiency.

[0029] Among them, the outer surface of the first conveying pipe 6 is fixedly sleeved with a limiting ring 8 located inside the annular sleeve 7, and the limiting ring 8 is in the shape of a ring and tightly attached to the inner wall of the annular sleeve 7.

[0030] By using the limiting ring 8, which is in a circular shape and tightly attached to the inner wall of the annular sleeve 7, the spring 10 can be effectively limited, thus preventing the spring 10 from having no pressure point.

[0031] The fixing plate 20 has a first guide groove 21 on its inner side, and the first guide groove 21 is located around the inner side of the fixing plate 20.

[0032] The first guide channel 21 is located on the inner periphery of the fixed plate 20, which can effectively disperse the exhaust heat evenly to the surrounding area, thereby achieving rapid heat exhaust and preventing accumulation.

[0033] Among them, limit blocks 16 are fixedly installed on the upper and lower sides inside the second conveying pipe 14, and the limit blocks 16 are rectangular protrusions.

[0034] The rectangular protrusion of the limiting block 16 can limit the filter screen 17, and the filter screen 17 will not tilt to the left due to the inertia of the oil passing through the filter screen 17.

[0035] The hydraulic oil tank 1 has an oil collection groove 26 on its top, and the oil collection groove 26 is located around the top of the hydraulic oil tank 1.

[0036] The oil collection trough 26 is located around the top of the hydraulic oil tank 1, which effectively prevents hydraulic oil from overflowing and polluting the working environment, and facilitates the recovery of hydraulic oil.

[0037] The hydraulic oil tank 1 has a base 27 fixedly installed at its bottom, and the base 27 is located around the bottom of the hydraulic oil tank 1.

[0038] The base 27, positioned around the bottom of the hydraulic tank 1, effectively maintains the stability of the entire device and prevents it from being easily affected by external physical influences.

[0039] Working principle and usage process of this utility model:

[0040] When the first motor 2 is started, the oil pump device 3 will draw oil from the hydraulic oil tank 1 and pressurize it. Then, the valve group 4, through the connecting pipe 5, allows the high-pressure oil in the oil pump device 3 to be transported through the first delivery pipe 6 and the annular sleeve 7 to the hydraulic cylinder in the filter press. Because the oil contains impurities, it is easy to become clogged after long-term oil transportation, affecting the oil transportation effect. When it is necessary to replace the inner filter screen 17, the annular sleeve 7 can be slid to the left on the surface of the first delivery pipe 6 by external force. At this time, the L-shaped annular block 9 will squeeze the spring 10 to the left, causing the spring 10 to undergo elastic deformation, and the elasticity of the spring 10 is within the bearing range. At the same time, the L-shaped annular block 9 moves away from the limiting ball 11, so that the squeezing force on the top of the limiting ball 11 will disappear. Due to the elastic recovery effect of the flexible film 12 fixedly installed inside the circular groove 13, the limiting ball 11, which was originally stuck inside the trapezoidal sleeve 15, returns to its original position away from the trapezoidal sleeve 15, releasing the restriction on the trapezoidal sleeve 15, so as to separate the second conveying pipe 14 from the first conveying pipe 6. Thus, the filter screen 17 inside the second conveying pipe 14 can be replaced smoothly. When the second conveying pipe 14 needs to be reinstalled, the external force exerted by the worker on the annular sleeve 7 disappears. Due to the elastic recovery effect of the spring 10, the L-shaped annular block 9 is pushed to the right, thereby squeezing the limiting ball 11 to be stuck back inside the trapezoidal sleeve 15, realizing the fixation between the first conveying pipe 6 and the second conveying pipe 14.

[0041] When the operator starts the second motor 24, the output shaft will drive the propeller fan 25 to start rotating. The propeller fan 25 is based on the existing mechanism and the principle of a propeller. When the propeller fan 25 rotates, the spiral suction force generated will cause the hot air generated by the oil inside the hydraulic oil tank 1 to be concentrated and attracted into the rectangular hollow frame 18. Then the hot air will pass through the linear array of diversion blocks 22. The second guide groove 23 opened on the outer surface of the diversion blocks 22 will effectively accelerate the flow rate of the hot air, reduce obstruction, and increase the heat dissipation rate.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] 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 dedicated hydraulic station for a filter press feed pump, comprising a hydraulic oil tank (1), characterized in that: A first motor (2) is fixedly installed on the top of the hydraulic oil tank (1), and a valve assembly (4) is fixedly installed on the top of the hydraulic oil tank (1). An oil pump device (3) is fixedly installed on the right side of the first motor (2), and the oil pump device (3) extends into the hydraulic oil tank (1). The oil pump device (3) and the valve assembly (4) are connected through a connecting pipe (5). A first delivery pipe (6) is fixedly connected to the right side of the oil pump device (3). An annular sleeve (7) is movably fitted on the outer surface of the first delivery pipe (6). A limiting ring (8) located inside the annular sleeve (7) is fixedly fitted on the outer surface of the first delivery pipe (6). An L-shaped annular block (9) located to the right of the limiting ring (8) is fixedly fitted on the inner wall of the annular sleeve (7). A spring (10) is connected between the limiting ring (8) and the L-shaped annular block (9). The outer surface of the first conveying pipe (6) has a circular groove (13) located to the right of the L-shaped ring block (9), and the circular grooves (13) are evenly spaced in a circular array. The inner side of each circular groove (13) is equipped with a limiting ball (11). The second conveying pipe (14) is movably installed inside the first conveying pipe (6). The outer surface of the second conveying pipe (14) is fixedly fitted with a trapezoidal sleeve (15), and the trapezoidal sleeve (15) is located inside the circular groove (13) and the limiting ball (11). The inner side of the circular groove (13) is fixedly installed with a flexible film (12), and the flexible film (12) is located between the limiting ball (11) and the trapezoidal sleeve (15). The upper and lower sides of the inside of the second conveying pipe (14) are fixedly installed with limiting blocks (16). The left side of the limiting block (16) inside the second conveying pipe (14) is equipped with a filter screen (17).

2. The hydraulic station for a filter press feed pump according to claim 1, characterized in that: A rectangular hollow frame (18) is fixedly installed inside the hydraulic oil tank (1) and extends into the hydraulic oil tank (1). A diverter block (22) is fixedly installed on the inner side of the rectangular hollow frame (18) and the diverter block (22) is arranged in a linear array. A second guide groove (23) is opened on the outer surface of the diverter block (22). A support block (19) is fixedly installed on the top of the rectangular hollow frame (18). A fixing plate (20) is fixedly installed on the top of the support block (19). A second motor (24) is fixedly installed on the inner side of the fixing plate (20). A spiral fan (25) is fixedly installed at the end of the output shaft of the second motor (24) and is located directly above the diverter block (22).

3. The hydraulic station for a filter press feed pump according to claim 1, characterized in that: The outer surface of the first conveying pipe (6) is fixedly fitted with a limiting ring (8) located inside the annular sleeve (7), and the limiting ring (8) is in the shape of a ring and tightly attached to the inner wall of the annular sleeve (7).

4. A dedicated hydraulic station for a filter press feed pump according to claim 2, characterized in that: The fixing plate (20) has a first guide groove (21) on its inner side, and the first guide groove (21) is located around the inner side of the fixing plate (20).

5. A dedicated hydraulic station for a filter press feed pump according to claim 1, characterized in that: Limiting blocks (16) are fixedly installed on the upper and lower sides inside the second conveying pipe (14), and the limiting blocks (16) are rectangular protrusions.

6. A dedicated hydraulic station for a filter press feed pump according to claim 1, characterized in that: The top of the hydraulic oil tank (1) is provided with an oil collection groove (26), and the oil collection groove (26) is located around the top of the hydraulic oil tank (1).

7. A dedicated hydraulic station for a filter press feed pump according to claim 1, characterized in that: The bottom of the hydraulic oil tank (1) is fixedly installed with a base (27), and the base (27) is located around the bottom of the hydraulic oil tank (1).

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