Mining hydraulic pump station

Abstract

The invention discloses a mining hydraulic pump station, and relates to the technical field of hydraulic pump stations, the mining hydraulic pump station comprises pump station equipment, the top of the pump station equipment is fixedly connected with a hydraulic pump main body, the hydraulic pump main body is internally communicated with an oil suction pipe and an oil return pipe, and the oil suction pipe and the oil return pipe are communicated with an inner cavity of the pump station equipment; through the arrangement of the overflow holes, oil return fluid slowly enters the liquid level of hydraulic oil in the inner cavity of the pump station equipment, the overflow holes are annularly formed in the cavity body, so that the oil return fluid flows out through the overflow holes after forming a certain depth in the cavity body, and slowly flows down along the outer surface of the cavity body; when entering the liquid level, the hydraulic oil is in contact with the surface of the liquid level of the hydraulic oil in a stable state, so that the problems that the liquid level of the hydraulic oil is severely disturbed and a large amount of foam is formed due to the fact that the liquid level of the hydraulic oil is impacted by return oil fluid in a direct discharge or high-speed impact type oil return mode in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic pump stations, and more particularly, to a mine hydraulic pump station. Background Art

[0002] A mine hydraulic pump station is a device specifically designed for the mining industry and mine operations. It consists of high-pressure and high-flow hydraulic components and a hydraulic system, and is mainly used to provide hydraulic power and hydraulic medium for hydraulic equipment to drive various hydraulic equipment and machinery. The mine hydraulic pump station can be used to lift and transport oil and gas resources collected from the seabed to ensure efficient and safe operations, and thus also belongs to underwater oil and gas production equipment;

[0003] Existing mine hydraulic pumps usually install a fixed filtering device in the return oil pipe. In this way, impurities and particulate matter in the return oil will accumulate on the filter screen under high-speed impact, clogging the mesh holes and gradually reducing the filtering efficiency. Once clogged, it is difficult for the fluid to flow through the mesh holes, and the return oil flow will be severely restricted. Moreover, the high-speed return oil directly impacts the filter screen, causing a large impact stress on the filter screen. After long-term operation, the wear of the filter screen will be aggravated, resulting in a decrease in the filtering efficiency;

[0004] Existing mine hydraulic pumps usually adopt the method of directly discharging into the fuel tank below the liquid level and injecting at high speed. When directly discharged into the fuel tank through the pipeline, due to the change in flow rate and direct impact, the contact area between the return oil fluid and air will increase, so that air can be quickly entrained into the return oil fluid, generating a large number of bubbles. And when the high-speed jet acts on the liquid surface, it will form violent fluctuations, further promoting the rupture of surface bubbles and triggering a foaming reaction, resulting in a large amount of foam accumulation. When a large amount of foam is generated in the hydraulic oil in the fuel tank, when the hydraulic oil is sucked to drive the hydraulic equipment, it will damage the hydraulic equipment and reduce its service life;

[0005] To solve the above problems, the inventor has proposed a mine hydraulic pump station. Summary of the Invention

[0006] To solve the above technical problems, a mine hydraulic pump station is provided. This technical solution solves the problems raised in the above background art;

[0007] To achieve the above object, the present invention may adopt the following technical solutions:

[0008] The present invention provides a mine hydraulic pump station, including a pump station device. A hydraulic pump main body is fixedly connected to the top of the pump station device. An oil suction pipe and a return oil pipe are communicated inside the hydraulic pump main body, and the oil suction pipe and the return oil pipe are communicated with the inner cavity of the pump station device;

[0009] A filter assembly is provided below the return oil pipe. The filter assembly includes a limit plate fixedly connected to the outer surface of the return oil pipe. A chute is formed on the inner ring surface of the limit plate, and three chutes are arranged annularly and equidistantly. A fixing plate is fixedly connected to the inner ring surface of the limit plate. A slider is slidably connected in each chute, and the three sliders are commonly fixedly connected to a ring plate. A filter plate is fixedly connected to the bottom of the ring plate. Square holes are formed in the filter plate. A conical diversion block is fixedly connected to the upper surface of the filter plate. A frame is fixedly connected to the bottom of the filter plate. A filter frame is slidably connected in the frame. A splash-proof ring plate and a spring telescopic rod are fixedly connected to the bottom of the filter plate. Four spring telescopic rods are arranged annularly and equidistantly, and the four spring telescopic rods are commonly fixedly connected to a turntable. A gear ring is fixedly connected to the outer side of the turntable.

[0010] Preferably, an oil delivery pipe and an oil outlet pipe are formed on the outer wall of the pumping station equipment. The filter assembly further includes a bracket fixedly connected to the inner cavity of the pumping station equipment. A limit hole is formed in the bracket, and the limit hole is in a stepped shape. A small gear is rotatably connected to the upper surface of the bracket. A connecting rod is fixedly connected to the upper surface of the small gear. A motor is fixedly connected to the top of the pumping station equipment.

[0011] Preferably, several first filter holes are formed on the filter plate at equal intervals and annularly. The surface of the conical diversion block is made of an oil-repellent material. Several round holes are formed in the conical diversion block. Several second filter holes are formed at the bottom of the inner cavity of the filter frame, and the diameters of the second filter holes are equal to those of the first filter holes.

[0012] Preferably, the turntable is slidably connected to the splash-proof ring plate, the turntable is adapted to the limit hole, and the turntable is rotatably connected to the limit hole.

[0013] Preferably, the small gear is meshed with the gear ring, the connecting rod is rotatably connected to the pumping station equipment, and the connecting rod is fixedly connected to the output shaft of the motor.

[0014] Preferably, a foam removal assembly is provided below the connecting rod. The foam removal assembly includes a reciprocating lead screw fixedly connected to the connecting rod. A guide rod is fixedly connected to the bracket. A moving plate is slidably connected to the guide rod. A fixing rod is fixedly connected to the outer wall of the moving plate. Two fixing rods are symmetrically arranged, and the two fixing rods are commonly fixedly connected to a porous disturbance ring plate.

[0015] Preferably, the foam removal assembly further includes a cavity body fixedly connected to the inner cavity of the pumping station equipment. An overflow hole is formed on the outer surface of the cavity body, and a plurality of overflow holes are arranged annularly and equidistantly. A buffer frustum is fixedly connected to the inner cavity of the cavity body. An annular groove is formed in the buffer frustum, and a plurality of annular grooves are arranged at equal intervals.

[0016] Preferably, the guide rod is fixedly connected to the inner cavity of the pumping station equipment, and the moving plate is threadedly connected to the reciprocating lead screw.

[0017] As described above, the advantages of the present invention are:

[0018] By opening the overflow holes, the return oil fluid slowly enters the liquid level of the hydraulic oil in the inner cavity of the pumping station equipment. Compared with the existing technology that uses direct discharge or high-speed impact return oil methods, this device uses the annular opening of overflow holes on the cavity body, so that after the return oil fluid forms a certain depth in the cavity body, it flows out through the overflow holes and slowly flows down along the outer surface of the cavity body, and finally flows to the surface of the hydraulic oil liquid level in the inner cavity of the pumping station equipment. The design of small-hole overflow has a throttling effect on the return oil flow rate, and the return oil speed is greatly slowed down. When it enters the liquid level, it contacts the surface of the hydraulic oil liquid level in a stable state, solving the problem in the existing technology that in the direct discharge or high-speed impact return oil methods, the return oil fluid impacts the hydraulic oil liquid level, resulting in violent disturbance of the hydraulic oil liquid level, so that a large amount of air enters the interior of the hydraulic oil and a large amount of foam is formed.

[0019] By the slow up and down movement of the porous disturbance ring plate, the efficiency of bubble separation is improved, and the foam is prevented from accumulating on the liquid surface. Compared with the existing technology that uses stirring deep in the liquid surface to remove foam, this device uses the return oil fluid to gradually accumulate in the cavity body to form a certain depth, and cooperates with the hole design of the porous disturbance ring plate and the local micro-turbulence and pressure gradient brought by the up and down reciprocating movement of the porous disturbance ring plate, so that small bubbles converge into large bubbles and accelerate floating. After floating, the bubbles break, solving the problem in the existing technology that the method of using a paddle to stir to remove bubbles generates turbulence and strong flow. If there are many bubbles in the return oil fluid, the bubbles in the return oil fluid will be repeatedly decomposed into smaller bubbles, forming foam.

[0020] The return oil fluid is diffused by the conical guide block, thereby slowing down the kinetic energy of the impurity particles impacting the first filter hole. Compared with the existing technology that directly installs a fixed filtering device inside the return oil pipe, this device sets a conical guide block directly below the return oil pipe, and uses the geometric shape of the conical guide block to diffuse the return oil fluid, so that the return oil fluid is dispersed into a larger cross-sectional area and the impact speed of the return oil fluid is reduced, reducing the impact on the first filter hole on the surface of the filter plate during the filtering process of the return oil fluid, solving the problem in the existing technology that due to the too fast flow rate of the return oil fluid in the return oil pipe, it impacts the filtering device, causing damage to the filter screen in the filtering device, and at the same time avoiding the damage of the hydraulic pumping station used in underwater oil production equipment due to filtering problems, and also avoiding the damage of high-pressure large-flow hydraulic components and hydraulic systems.

[0021] By means of the slow rotation of the filter plate and the self-vibration of the filter plate, the probability of clogging of the filter holes is reduced. Compared with the prior art in which a fixed filtering device is directly installed inside the oil return pipe, the slow rotation of the filter plate in this device can prevent impurity particles from accumulating concentratedly at a single position of the first filter hole, and disperse the impurity particles to different parts of the first filter hole. At the same time, while the filter plate filters the oil return fluid, it will reciprocate up and down due to the impact, so as to further peel off the impurity particles with strong adhesion, and cooperate with the fixed plate, so that the impurity particles peeled off from the first filter hole can fall into the filter frame. The combination of the slow rotation and the up-and-down vibration of the filter plate solves the problem in the prior art that the filter screen in the fixed filtering device remains stationary under the impact of the oil return fluid, resulting in clogging of the filter screen and the need for timely replacement. In this way, the pumping station equipment can operate under high-flow and large-impurity-load conditions, further increasing the service life of high-pressure and large-flow hydraulic components and hydraulic systems. Brief Description of the Drawings

[0022] Figure 1 It is a front three-dimensional schematic diagram of the overall structure shown in the present invention;

[0023] Figure 2 It is an internal sectional three-dimensional schematic diagram of the pumping station equipment shown in the present invention;

[0024] Figure 3 It is a three-dimensional schematic diagram of related components such as the limit plate and the annular plate shown in the present invention;

[0025] Figure 4 It is a three-dimensional schematic diagram of related components such as the splash-proof ring plate and the turntable shown in the present invention;

[0026] Figure 5 It is an exploded three-dimensional schematic diagram of the frame and the filter frame shown in the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of related components such as the gear ring and the pinion shown in the present invention;

[0028] Figure 7 It is an exploded three-dimensional schematic diagram of the limit plate and the bracket shown in the present invention;

[0029] Figure 8 It is a three-dimensional schematic diagram of related components such as the turntable and the limit hole shown in the present invention;

[0030] Figure 9 It is a partial three-dimensional schematic diagram of the foam removal assembly shown in the present invention;

[0031] Figure 10 It is a three-dimensional schematic diagram of related components such as the buffer frustum and the annular groove shown in the present invention;

[0032] Figure 11Schematic three-dimensional diagram of the fixing rod and porous disturbance ring plate related components shown in the present invention.

[0033] Among them, the reference numerals in the present invention are as follows:

[0034] 1. Pump station equipment; 2. Hydraulic pump main body; 21. Suction oil pipe; 22. Return oil pipe;

[0035] Filter assembly: 31. Limit plate; 32. Chute; 33. Fixed plate; 34. Slide block; 35. Annular plate; 36. Filter plate; 37. Square hole; 38. Conical diversion block; 39. Frame; 310. Filter frame; 311. Splash-proof ring plate; 312. Spring telescopic rod; 313. Turntable; 314. Gear ring; 315. Bracket; 316. Limit hole; 317. Small gear; 318. Connecting rod; 319. Motor;

[0036] Foam removal assembly: 41. Reciprocating lead screw; 42. Guide rod; 43. Moving plate; 44. Fixing rod; 45. Porous disturbance ring plate; 46. Cavity body; 47. Overflow hole; 48. Buffer frustum; 49. Annular groove. Specific implementation manner

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Refer to Figures 1 to 11 As shown, an embodiment provided by the present invention, a mine hydraulic pump station to be provided will be elaborated in detail below:

[0039] A mine hydraulic pump station, as Figure 1 shown, includes a pump station equipment 1. The upper surface of the pump station equipment 1 is fixedly connected with a hydraulic pump main body 2. The hydraulic pump main body 2 is internally communicated with a suction oil pipe 21 and a return oil pipe 22. The suction oil pipe 21 and the return oil pipe 22 are communicated with the inner cavity of the pump station equipment 1;

[0040] As Figures 2 to 8As shown in the figure, a filtering component is provided below the oil return pipe 22. The filtering component includes a limiting plate 31 fixedly connected to the outer surface of the oil return pipe 22. A part of the oil return pipe 22 is located inside the limiting plate 31. A sliding groove 32 is formed on the inner ring surface of the limiting plate 31. There are three sliding grooves 32 arranged equidistantly in a ring shape. One side of the limiting plate 31 close to one of the sliding grooves 32 is fixedly connected with a fixing plate 33. Each sliding groove 32 is slidably connected with a slider 34. The three sliders 34 are commonly fixedly connected with an annular plate 35, and the annular plate 35 is located inside the limiting plate 31. The bottom surface of the annular plate 35 is fixedly connected with a filter plate 36. Square holes 37 are formed on the upper surface of the filter plate 36. The square holes 37 are located at the eccentric position of the filter plate 36. One side of the filter plate 36 close to the oil return pipe 22 is fixedly connected with a conical diversion block 38. The conical diversion block 38 is located directly below the oil return pipe 22. The conical diversion block 38 can diffuse the oil return fluid flowing out of the oil return pipe 22 and weaken its kinetic energy. One side of the filter plate 36 far from the conical diversion block 38 is fixedly connected with a frame 39, and the filter plate 36 corresponds to the square holes 37. A filter frame 310 is slidably connected inside the frame 39. Both the frame 39 and the filter frame 310 are located directly below the square holes 37. One side of the filter plate 36 close to the frame 39 is fixedly connected with a splash-proof ring plate 311 and a spring telescopic rod 312. The spring telescopic rod 312 is composed of a telescopic rod and a spring sleeved outside the telescopic rod. There are four spring telescopic rods 312 arranged equidistantly in a ring shape. The spring telescopic rods 312 are located outside the splash-proof ring plate 311. The ends of the four spring telescopic rods 312 far from the filter plate 36 are commonly fixedly connected with a turntable 313. The turntable 313 is located outside the splash-proof ring plate 311. One side of the turntable 313 far from the splash-proof ring plate 311 is fixedly connected with a gear ring 314, and the gear ring 314 is located on the outer ring surface of the turntable 313.

[0041] Further, as Figure 6 shown, an oil delivery pipe and an oil outlet pipe are formed on the outer wall of the pumping station device 1. The oil delivery pipe and the oil outlet pipe are located on the same side of the pumping station device 1 and are arranged in parallel. The staff conveys hydraulic oil into the inner cavity of the pumping station device 1 through the oil delivery pipe and discharges the hydraulic oil in the inner cavity of the pumping station device 1 through the oil outlet pipe. The filtering component further includes a bracket 315 fixedly connected to the side wall of the inner cavity of the pumping station device 1. A limiting hole 316 is formed on the bracket 315. A small gear 317 is rotatably connected to one side of the bracket 315 close to the oil return pipe 22. A connecting rod 318 is fixedly connected to the side of the small gear 317 far from the bracket 315. The connecting rod 318 is arranged side by side with the oil return pipe 22. A motor 319 is fixedly connected to one side of the pumping station device 1 close to the hydraulic pump main body 2.

[0042] Further, as Figure 4 and Figure 5As shown, several first filter holes are annularly and equidistantly formed on the filter plate 36. The surface of the conical diversion block 38 is made of an oil-repellent material, which is a polytetrafluoroethylene coating. By utilizing the good chemical corrosion resistance and anti-sticking performance of the polytetrafluoroethylene coating, the oil-return fluid falling on the surface of the conical diversion block 38 can smoothly slide onto the surface of the filter plate 36. Several round holes are formed on the conical diversion block 38. Several second filter holes are formed on the bottom surface of the inner cavity of the filter frame 310, and the second filter holes are equal in diameter to the first filter holes. Both the first filter holes and the second filter holes are used to block impurities in the oil-return fluid for filtration.

[0043] Further, as Figure 7 and Figure 8 shown, the turntable 313 is slidably connected to the splash-proof ring plate 311, and the splash-proof ring plate 311 is sleeved inside the turntable 313. The limit hole 316 is stepped, and the turntable 313 is adapted to the limit hole 316. The part of the turntable 313 away from the filter plate 36 is located inside the limit hole 316, and the turntable 313 is rotatably connected to the limit hole 316. The limit hole 316 can enable the turntable 313 and the gear ring 314 to rotate stably.

[0044] Further, as Figure 6 shown, the small gear 317 is meshed with the gear ring 314. One end of the connecting rod 318 away from the small gear 317 is rotatably connected to the top surface of the inner cavity of the pumping station device 1, and the connecting rod 318 is fixedly connected to the output shaft of the motor 319.

[0045] Further, as Figures 9 to 11 shown, a foam removal assembly is arranged below the connecting rod 318. The foam removal assembly includes a reciprocating lead screw 41 fixedly connected to the connecting rod 318. The reciprocating lead screw 41 and the connecting rod 318 are on the same axis. A guide rod 42 is fixedly connected to one side of the bracket 315 close to the reciprocating lead screw 41. The guide rod 42 is arranged side by side with the reciprocating lead screw 41. A moving plate 43 is slidably connected to the outer surface of the guide rod 42. A fixed rod 44 is fixedly connected to the outer wall of the moving plate 43. There are two fixed rods 44 symmetrically arranged, and a porous disturbing ring plate 45 is fixedly connected by the two fixed rods 44 together. The porous disturbing ring plate 45 is used to disturb the oil-return fluid to promote the floating of bubbles in the oil-return fluid.

[0046] Further, as Figure 10 and Figure 11As shown, the foam removal component further includes a cavity body 46 fixedly connected to the bottom surface of the inner cavity of the pumping station device 1. The cavity body 46 is located below the splash-proof ring plate 311. An overflow hole 47 is formed on the outer surface of the cavity body 46. A plurality of overflow holes 47 are arranged at equal intervals in a ring shape. The overflow holes 47 are located above the porous disturbance ring plate 45. A buffer frustum 48 is fixedly connected to the bottom surface of the inner cavity of the cavity body 46. The buffer frustum 48 is located at the center of the bottom surface of the inner cavity of the cavity body 46. A plurality of annular grooves 49 are formed on the buffer frustum 48 at equal intervals. The porous disturbance ring plate 45 is located inside the cavity body 46.

[0047] Further, as Figure 11 shown, the guide rod 42 is fixedly connected to the top surface of the inner cavity of the pumping station device 1, and the moving plate 43 is threadedly connected to the reciprocating lead screw 41.

[0048] During operation:

[0049] When the mining hydraulic pumping station needs to be used, the staff transports hydraulic oil to the inner cavity of the pumping station device 1 through an oil delivery pipe, making the height of the hydraulic oil lower than the height of the overflow hole 47, and connecting the driving hydraulic equipment as needed. Then, the motor 319 and the hydraulic pump main body 2 are started successively;

[0050] The hydraulic pump main body 2 sucks the hydraulic oil in the inner cavity of the pumping station device 1 through the suction pipe 21 and transports it to the hydraulic equipment, thereby driving the hydraulic equipment so that the hydraulic equipment can work. When the hydraulic equipment completes one action, the hydraulic oil returns to the inner cavity of the pumping station device 1 through the return pipe 22. Since the hydraulic equipment usually needs to perform multiple actions continuously, these actions require the hydraulic pump main body 2 to continuously provide new hydraulic oil and continuously recover the hydraulic oil to maintain the normal operation of the hydraulic equipment;

[0051] When the device recovers the hydraulic oil, it can filter the hydraulic oil. The following are the detailed steps:

[0052] The return oil fluid falling from the return pipe 22 first impacts the conical diversion block 38. Due to the shape of the conical diversion block 38 and the fact that the bottom area of the conical diversion block 38 is larger than the cross-sectional area of the return pipe 22, the flow velocity of the return oil fluid falling from the return pipe 22 will be weakened by the conical diversion block 38, and the return oil fluid will be dispersed over a larger cross-sectional area. When the flow velocity of the return oil decreases, the impact force on the first filter holes on the subsequent filter plate 36 and the second filter holes on the filter frame 310 is weakened, avoiding damage or deformation of the first filter holes and the second filter holes due to high-intensity fluid impact;

[0053] When the oil return fluid impacts the conical deflector 38, the oil return fluid will flow through the conical surface of the conical deflector 38 and the round holes formed on the surface of the conical deflector 38, and thus fall onto the upper surface of the filter plate 36. Since the oil return fluid falling onto the surface of the filter plate 36 still has a velocity in the vertical direction, it will reciprocally impact the upper surface of the filter plate 36, causing the spring telescopic rod 312 to continuously expand and contract, thereby causing the filter plate 36 to vibrate reciprocally up and down. Through the reciprocal up and down vibration of the filter plate 36, a periodic mechanical vibration effect is generated, preventing the impurity particles in the oil return fluid from clogging the first filter hole and the second filter hole, and ensuring the filtering effect of the first filter hole and the second filter hole;

[0054] When the staff starts the motor 319, the output shaft of the motor 319 rotates. The output shaft of the motor 319 drives the connecting rod 318 and the small gear 317 to rotate together. The rotation of the small gear 317 drives the gear ring 314 meshed with the small gear 317 to rotate. The gear ring 314 drives the turntable 313 and the filter plate 36 to rotate together;

[0055] Since the filter plate 36 rotates slowly, the surface of the first filter hole on the filter plate 36 will not directly contact the impurity particles in the oil return fluid. Further, during the slow rotation of the filter plate 36, the fixed plate 33 pushes the impurity particles in the oil return fluid into the interior of the filter frame 310. In this way, the impurity particles in the oil return fluid are concentrated in the interior of the filter frame 310, facilitating the subsequent extraction of the filter frame 310 by the staff to process the impurity particles;

[0056] In the above process, the oil return fluid is diffused by the conical deflector 38, thereby reducing the kinetic energy of the impurity particles impacting the first filter hole. Compared with the prior art in which a fixed filtering device is directly installed inside the oil return pipe 22, in this device, the conical deflector 38 is provided directly below the oil return pipe 22. The geometric shape of the conical deflector 38 is used to diffuse the oil return fluid, so that the oil return fluid is dispersed over a larger cross-sectional area and the impact velocity of the oil return fluid is reduced, minimizing the impact on the first filter hole on the surface of the filter plate 36 during the filtering process of the oil return fluid, and solving the problem in the prior art that due to the too fast flow rate of the oil return fluid in the oil return pipe 22, the filtering device is impacted, causing damage to the filter screen in the filtering device.

[0057] In the above process, by the slow rotation of the filter plate 36 and the self-vibration of the filter plate 36, the probability of the filter holes being blocked is reduced. Compared with the prior art where a fixed filtering device is directly installed inside the oil return pipe 22, the slow rotation of the filter plate 36 in this device can prevent impurity particles from concentrating and accumulating at a single position of the first filter hole, dispersing the impurity particles to different parts of the first filter hole. At the same time, while the filter plate 36 filters the oil return fluid, it will vibrate reciprocally up and down due to the impact, so as to further peel off the impurity particles with strong adhesion and cooperate with the fixed plate 33, enabling the impurity particles peeled off from the first filter hole to fall into the filter frame 310. The combination of the slow rotation and the up-and-down vibration of the filter plate 36 solves the problem in the prior art that the filter screen in the fixed filtering device remains stationary under the impact of the oil return fluid, resulting in the blockage of the filter screen and the need for timely replacement. In this way, the pumping station equipment 1 can operate under high-flow and high-impurity-load conditions.

[0058] This device can make the oil return fluid in the oil return pipe 22 slowly fall into the hydraulic oil in the inner cavity of the pumping station equipment 1. The following are the detailed steps:

[0059] When the oil return fluid is filtered, it will fall onto the surface of the buffer frustum 48, causing the oil return fluid to generate radial diversion on the outer surface of the buffer frustum 48. Since the buffer frustum 48 is annularly provided with an annular groove 49, when the liquid slides down from the outer surface of the buffer frustum 48, the annular groove 49 will capture the oil return fluid and disperse it into smaller streams to further reduce the flow rate and divert the flow.

[0060] Subsequently, the oil return fluid accumulates to a certain depth in the cavity body 46. At this time, the motor 319 is in the working state, and the output shaft of the motor 319 drives the connecting rod 318 and the reciprocating lead screw 41 to rotate together. During the rotation of the reciprocating lead screw 41, the moving plate 43 reciprocates up and down along the outer surface of the guide rod 42, causing the fixed rod 44 and the porous disturbance ring plate 45 to reciprocate up and down together with the moving plate 43, so that the bubbles in the oil return fluid slowly float up under the action of the porous plate. When reaching the liquid surface, larger bubble particles have been formed, and these bubbles are not likely to form foam after bursting.

[0061] When the oil return fluid in the inner cavity of the cavity body 46 rises to the height of the overflow hole 47, the oil return fluid will overflow from the overflow hole 47 and slowly fall onto the liquid surface of the hydraulic oil outside the cavity body 46 along the outer surface of the cavity body 46.

[0062] In the above process, by slowly moving the porous perturbation ring plate 45 up and down, the efficiency of bubble separation is improved, and the accumulation of foam on the liquid surface is avoided. Compared with the prior art method of removing foam by stirring deep in the liquid surface, the device of the present invention utilizes the gradually accumulated backflow fluid in the cavity 46 to form a certain depth, and cooperates with the hole design of the porous perturbation ring plate 45 and the reciprocating movement of the porous perturbation ring plate 45 up and down to bring local micro-turbulence and pressure gradient, so that small bubbles converge into large bubbles and accelerate floating. After floating, the bubbles break, solving the problem that in the prior art, the method of using a paddle to stir to remove bubbles generates turbulence and strong flow. If there are many bubbles in the backflow fluid, the bubbles in the backflow fluid will be repeatedly decomposed into smaller bubbles, forming foam.

[0063] In the above process, by opening the overflow hole 47, the backflow fluid slowly enters the liquid surface of the hydraulic oil in the inner cavity of the pumping station device 1. Compared with the prior art method of directly discharging or high-speed impacting backflow, the device of the present invention utilizes the annular opening of the overflow hole 47 on the cavity 46, so that after the backflow fluid forms a certain depth in the cavity 46, it flows out through the overflow hole 47 and slowly flows down along the outer surface of the cavity 46, and finally flows to the liquid surface of the hydraulic oil in the inner cavity of the pumping station device 1. The design of small-hole overflow has a throttling effect on the backflow velocity, and the backflow speed is greatly slowed down. When entering the liquid surface, it contacts the liquid surface of the hydraulic oil in a stable state, solving the problem that in the prior art, in the method of directly discharging or high-speed impacting backflow, the backflow fluid impacts the liquid surface of the hydraulic oil, resulting in violent disturbance of the liquid surface of the hydraulic oil, so that a large amount of air enters the interior of the hydraulic oil, forming a large amount of foam.

[0064] The above are only the embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mining hydraulic pump station, comprising a pump station device (1), characterized in that: A hydraulic pump body (2) is fixedly connected to the top of the pump station equipment (1), an oil suction pipe (21) and an oil return pipe (22) are connected inside the hydraulic pump body (2), and the oil suction pipe (21) and the oil return pipe (22) are connected to the inner cavity of the pump station equipment (1); A filter assembly is arranged below the oil return pipe (22), and the filter assembly comprises a limit plate (31) fixedly connected to the outer surface of the oil return pipe (22), the inner ring surface of the limit plate (31) is provided with a slide groove (32), three slide grooves (32) are arranged in an annular manner and are equidistantly, the inner ring surface of the limit plate (31) is fixedly connected to a fixed plate (33), each of the slide grooves (32) is slidably connected to a slider (34), the three sliders (34) are commonly fixedly connected to an annular plate (35), the bottom of the annular plate (35) is fixedly connected to a filter plate (36), and the filter plate (36) ) is provided with a square hole (37), a conical guide block (38) is fixedly connected to the upper surface of the filter plate (36), a frame (39) is fixedly connected to the bottom of the filter plate (36), a filter frame (310) is slidably connected inside the frame (39), a splash-proof ring plate (311) and a spring telescopic rod (312) are fixedly connected to the bottom of the filter plate (36), four spring telescopic rods (312) are equidistantly arranged in an annular pattern, the four spring telescopic rods (312) are commonly fixedly connected to a rotating disk (313), and a gear ring (314) is fixedly connected to the outer side of the rotating disk (313).

2. A mining hydraulic pump station according to claim 1, characterized in that: The outer wall of the pump station equipment (1) is provided with an oil delivery pipe and an oil outlet pipe, and the filter assembly also includes a bracket (315) fixedly connected to the inner cavity of the pump station equipment (1), and a limit hole (316) is provided on the bracket (315), and the limit hole (316) is stepped. A pinion gear (317) is rotatably connected to the upper surface of the bracket (315), and a connecting rod (318) is fixedly connected to the upper surface of the pinion gear (317), and a motor (319) is fixedly connected to the top of the pump station equipment (1).

3. A mining hydraulic pump station according to claim 1, characterized in that: The filter plate (36) is provided with a plurality of filter holes one in an equidistant annular shape, the surface of the conical guide block (38) is provided with an oleophobic material, the conical guide block (38) is provided with a plurality of circular holes, and the bottom of the inner cavity of the filter frame (310) is provided with a plurality of filter holes two, and the diameter of the filter holes two is equal to that of the filter holes one.

4. A mining hydraulic pump station according to claim 1, characterized in that: The rotating disk (313) is slidably connected to the splash-proof ring plate (311), the rotating disk (313) is matched with the limiting hole (316), and the rotating disk (313) is rotatably connected to the limiting hole (316).

5. A mining hydraulic pump station according to claim 2, characterized in that: The pinion (317) is meshingly connected to the gear ring (314), the connecting rod (318) is rotationally connected to the pump station equipment (1), and the connecting rod (318) is fixedly connected to the output shaft of the motor (319).

6. A mining hydraulic pump station according to claim 2, characterized in that: A foam removal assembly is arranged below the connecting rod (318), and the foam removal assembly includes a reciprocating screw rod (41) fixedly connected to the connecting rod (318), a guide rod (42) fixedly connected to the bracket (315), a movable plate (43) slidably connected to the guide rod (42), a fixed rod (44) fixedly connected to the outer wall of the movable plate (43), two fixed rods (44) are symmetrically arranged, and the two fixed rods (44) are commonly fixedly connected to a porous disturbance ring plate (45).

7. A mining hydraulic pump station according to claim 6, characterized in that: The foam removal component also includes a hollow body (46) fixedly connected to the inner cavity of the pump station equipment (1), the outer surface of the hollow body (46) is provided with an overflow hole (47), and a plurality of the overflow holes (47) are arranged in an annular manner at equal intervals. The inner cavity of the hollow body (46) is fixedly connected with a buffer cone (48), and the buffer cone (48) is provided with an annular groove (49), and a plurality of the annular grooves (49) are arranged in an equal intervals.

8. A mining hydraulic pump station according to claim 6, characterized in that: The guide rod (42) is fixedly connected to the inner cavity of the pump station equipment (1), and the movable plate (43) is threadedly connected to the reciprocating screw rod (41).

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