An intelligent emulsion pumping station for coal mines

Abstract

The present invention relates to the technical field of emulsion pumping stations, and in particular to an intelligent emulsion pumping station for coal mines. A front pipe and a rear pipe are connected between two adjacent liquid outlet pipes, a first concentration detector is arranged on the front pipe, a fixed block is arranged in the rear pipe, a sliding core is penetrated in the fixed block, a fine flow channel is arranged in the sliding core, the middle part of the fine flow channel is connected to an overflow pipe, and a second concentration detector is arranged on the overflow pipe. With the fluctuation of the liquid outlet pressure in the adjacent liquid outlet pipe, the sliding core is driven to slide and vibrate. When the first concentration detector detects that the emulsion concentration exceeds a preset range, and the second concentration detector detects that the emulsion concentration is within the preset range, an agitator is triggered to stir, and when the second concentration detector detects that the emulsion concentration exceeds the preset range, a liquid distributor is triggered to distribute liquid, so as to achieve the purpose of efficient, sufficient and comprehensive monitoring of the emulsion, and accurate and intelligent liquid distribution and supply.

Description

Technical Field

[0001] The invention relates to the technical field of emulsion pumping stations, and in particular to an intelligent emulsion pumping station for coal mines. Background Art

[0002] The emulsion pump station is the power device of the hydraulic support of the key supporting equipment in the mechanization of coal mine comprehensive mining. It is also an important hydraulic equipment component to ensure the safety of coal mine production and improve the production efficiency. In the prior art, such as the centralized liquid supply emulsion pump station disclosed in the Chinese patent document CN204344397U, an emulsion pump station disclosed in CN106894979B, an emulsion pump station disclosed in CN102588244B and its control system, as well as the existing conventional emulsion pump station, generally include a liquid distributor, which is connected to the liquid distributor through a water pump and a liquid distributor. The basic settings include a water tank connected to the liquid inlet end of the distributor, an oil storage tank connected to the liquid inlet end of the distributor through an oil supply pump, an emulsion tank connected to the liquid outlet end of the distributor, an emulsion pump connected to the emulsion tank, etc. Among them, because the quality and pressure of the emulsion are crucial to the normal use and service life of the hydraulic system, the emulsion tank is generally equipped with a liquid level sensor, concentration sensor, temperature sensor, etc., which are used to monitor the state of the emulsion and can automatically trigger the control of the distributor to achieve the purpose of accurate and intelligent liquid distribution and supply.

[0003] However, if the conventional means is to monitor the static emulsion in the emulsion tank, the sensor is easily covered by the colloid precipitated from the emulsion, affecting the detection accuracy. If the emulsion in the liquid outlet pipe is directly monitored, the sensitivity of the sensor will be reduced due to the excessively fast liquid outlet flow rate, affecting the detection accuracy. In this regard, the prior art can also adopt a circulation pipeline outside the emulsion tank and equip it with a circulation pump to circulate and monitor the emulsion externally and then flow it into the tank. However, this will obviously increase the additional equipment cost and energy consumption. Even if this method is adopted, the circulation monitoring of only a single point still cannot achieve a good comprehensive monitoring effect, which is not conducive to further accurate and intelligent emulsion liquid preparation and supply requirements. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose an intelligent emulsion pumping station for coal mines to solve the problem that the existing emulsion pumping stations are still not efficient, sufficient and comprehensive enough to monitor the emulsion and trigger and control the liquid distributor to accurately and intelligently distribute and supply the liquid.

[0005] Based on the above purpose, the present invention provides an intelligent emulsion pump station for coal mines, including a liquid distributor, a water tank connected to the liquid inlet end of the liquid distributor through a water pump, an oil storage tank connected to the liquid inlet end of the liquid distributor through an oil supply pump, an emulsion tank connected to the liquid outlet end of the liquid distributor, and an emulsion pump connected to the emulsion tank:

[0006] An agitator is provided in the emulsion tank, and a pair of liquid outlet pipes are provided at the liquid outlet end of the emulsion tank, which are respectively connected to each emulsion pump through the liquid outlet pipes. A liquid pump is connected to one end of the liquid outlet pipe close to the emulsion tank, which is used to pressurize the liquid out toward the emulsion pump;

[0007] A front pipe and a rear pipe are connected between two adjacent liquid outlet pipes. The front pipe is located on the side of the liquid pump close to the emulsion tank, and the rear pipe is located on the other side of the liquid pump away from the emulsion tank. A first concentration detector is provided on the front pipe, and an overflow pipe is externally connected to the middle side end of the rear pipe. A fixed block is provided in the rear pipe, and a sliding core is passed through the fixed block along its length direction. Both ends of the sliding core pass through the fixed block and extend into the liquid outlet pipe. As the liquid outlet pressure in the adjacent liquid outlet pipe fluctuates, the sliding core is driven to slide and vibrate along the length direction in the fixed block.

[0008] A trickle channel is provided in the sliding core, and both ends of the trickle channel are designed to be open and lead to the liquid outlet pipe. A through opening is provided in the middle of the trickle channel and is connected to the overflow pipe. A second concentration detector is provided on the overflow pipe. When the first concentration detector detects that the emulsion concentration exceeds a preset range and the second concentration detector detects that the emulsion concentration is within the preset range, the agitator is triggered to stir. When the second concentration detector detects that the emulsion concentration exceeds the preset range, the liquid dispenser is triggered to dispense liquid.

[0009] Preferably, the liquid outlet pipes are arranged in parallel and at intervals at the same height.

[0010] Preferably, the front pipe is designed to be U-shaped, with the opening of the U-shaped pipe facing upward and respectively connected to adjacent liquid outlet pipes.

[0011] Preferably, the rear pipe is designed to be in a straight line perpendicular to the length direction of the liquid outlet pipe, and the two ends of the straight line are respectively connected to the side ends of the adjacent liquid outlet pipe.

[0012] Preferably, a curved recess is provided on one side of the liquid outlet pipe leading to the rear pipe, and both ends of the sliding core extend into the curved recess.

[0013] Preferably, a through groove is provided on one side of the fixed block, a liquid storage box is connected to the middle side of the sliding core, the liquid storage box slides in the through groove, the trickle channel includes an axial channel along the length direction of the sliding core, and a radial channel vertically connected to the two ends of the axial channel, one end of the radial channel passes through the outside of the sliding core and is used to connect to the liquid outlet pipe, the through port is provided in the middle of the axial channel and is connected to the bottom of the liquid storage box, an overflow port is provided on the upper side of the liquid storage box and is connected to the overflow pipe.

[0014] Preferably, the overflow port and the overflow pipe are connected via a flexible pipe.

[0015] Preferably, a switch valve is provided on the overflow pipe, a limit pin is elastically inserted into the bottom end of the liquid storage box, and a limit opening is opened at the bottom end of the through groove. When the switch valve is closed, the limit pin is pressed against by the emulsion filled in the liquid storage box, so that the limit pin pops up downward until it is inserted into the limit opening, and the sliding core stops sliding and vibrating.

[0016] Preferably, the bottom end of the liquid storage box is rotatably connected to a pressure plate, and one end of the pressure plate is rotatably connected to a push rod, and the bottom end of the push rod abuts against the inner bottom end of the liquid storage box to prevent the pressure plate from rotating downward, and the top end of the limit pin abuts against the bottom end surface of the pressure plate, and a floating part is provided in the liquid storage box, and the floating part is connected to the bottom end of the push rod through a pull rope. When the switch valve is closed, the emulsion filled in the liquid storage box drives the floating part to float up, so that the pull rope pulls the push rod to rotate outward, and at the same time, the emulsion presses the pressure plate downward to push the limit pin to pop out downward.

[0017] Preferably, distance sensors are provided on both sides of the through groove, and the distance sensors are electrically connected to the liquid pump. The position of the liquid storage box is detected by the distance sensor, which is used to fine-tune the liquid outlet pressure in the adjacent liquid outlet pipe so that the sliding core maintains a sliding vibration state. When the distance sensor detects that the distance between the liquid storage box and the inner wall of the through groove is less than a preset value, an alarm is triggered.

[0018] The beneficial effects of the present invention are as follows: a front pipe and a rear pipe are connected between two adjacent liquid outlet pipes, the front pipe is located on the side of the liquid pump close to the emulsion tank, the rear pipe is located on the other side of the liquid pump away from the emulsion tank, a first concentration detector is arranged on the front pipe, a fixed block is arranged in the rear pipe, a sliding core is penetrated in the fixed block along its length direction, a thin flow channel is arranged in the sliding core, both ends of the thin flow channel are designed to be open and used to lead to the liquid outlet pipe, a through port is arranged in the middle of the thin flow channel for connecting to the overflow pipe, a second concentration detector is arranged on the overflow pipe, and the second concentration detector is arranged on the overflow pipe, which is detected by the pressure fluctuation of the liquid outlet in the adjacent liquid outlet pipe. When the first concentration detector detects that the emulsion concentration exceeds the preset range, and the second concentration detector detects that the emulsion concentration is within the preset range, it means that the emulsion in the box may not meet the preset concentration requirement due to uneven mixing or long-term storage, then the agitator is triggered to stir. When the second concentration detector detects that the emulsion concentration exceeds the preset range, it means that the configuration ratio of pure water and emulsified oil in the box may deviate, then the liquid distributor is triggered to distribute the liquid, so as to achieve efficient, sufficient and comprehensive monitoring of the emulsion, and accurate and intelligent liquid distribution and supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a side structural schematic diagram of the emulsion tank of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the rear pipeline of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the sliding core of the present invention when it is sliding and vibrating;

[0024] Figure 5 It is a schematic diagram of the internal structure of the liquid storage box when the switch valve of the present invention is opened;

[0025] Figure 6 It is a structural schematic diagram of the sealing cloth of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of the liquid storage box when the switch valve of the present invention is closed;

[0027] Figure 8 A schematic diagram of the top view structure of the slide groove and the limit opening of the present invention.

[0028] The markings in the figure are:

[0029] 1. Emulsion tank; 2. Liquid outlet pipe; 21. Arc notch; 3. Liquid pump; 4. Front pipe; 41. First concentration detector; 5. Rear pipe; 51. Fixed block; 52. Sliding core; 53. Through groove; 54. Liquid storage box; 55. Overflow port; 56. Sealing cloth; 6. Overflow pipe; 61. Second concentration detector; 7. Trickle channel; 71. Through port; 72. Axial channel; 73. Radial channel; 8. Flexible pipe; 9. Switch valve; 10. Limit pin; 11. Slide groove; 12. Limit port; 13. Pressure plate; 14. Push rod; 15. Floating part; 16. Pull rope; 17. Floating rod; 18. Distance sensor. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0031] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an intelligent emulsion pump station for coal mines comprises a liquid distributor, a water tank connected to the liquid inlet end of the liquid distributor through a water pump, an oil storage tank connected to the liquid inlet end of the liquid distributor through an oil supply pump, an emulsion tank 1 connected to the liquid outlet end of the liquid distributor, an emulsion pump connected to the emulsion tank 1, an agitator is arranged in the emulsion tank 1, and the liquid outlet end of the emulsion tank 1 is provided with liquid outlet pipes 2 in pairs, which are respectively connected to each emulsion pump through the liquid outlet pipes 2, a liquid pump 3 is connected to one end of the liquid outlet pipe 2 close to the emulsion tank 1 for pressurizing the liquid out toward the emulsion pump, a front pipe 4 and a rear pipe 5 are connected between two adjacent liquid outlet pipes 2, the front pipe 4 is located on a side of the liquid pump 3 close to the emulsion tank 1, and the rear pipe 5 is located on the other side of the liquid pump 3 away from the emulsion tank 1, a first concentration detector 41 is arranged on the front pipe 4, and an overflow pipe is externally connected to the middle side end of the rear pipe 5 6, a fixed block 51 is provided in the rear pipe 5, and a sliding core 52 is penetrated in the fixed block 51 along its length direction, and both ends of the sliding core 52 pass through the fixed block 51 and extend into the liquid outlet pipe 2. As the outlet pressure in the adjacent liquid outlet pipe 2 fluctuates, the sliding core 52 is driven to slide and vibrate along the length direction in the fixed block 51. A trickle channel 7 is provided in the sliding core 52, and both ends of the trickle channel 7 are open for leading to the liquid outlet pipe 2. A through opening 71 is provided in the middle of the trickle channel 7 for connecting to the overflow pipe 6. A second concentration detector 61 is provided on the overflow pipe 6. When the first concentration detector 41 detects that the concentration of the emulsion exceeds the preset range, and the second concentration detector 61 detects that the concentration of the emulsion is within the preset range, the agitator is triggered to stir, and when the second concentration detector 61 detects that the concentration of the emulsion exceeds the preset range, the liquid dispenser is triggered to dispense liquid.

[0033] The present invention is based on the existing emulsion pump station configuration, including a liquid distributor, a water tank connected to the liquid inlet end of the liquid distributor through a water pump, an oil storage tank connected to the liquid inlet end of the liquid distributor through an oil supply pump, an emulsion tank 1 connected to the liquid outlet end of the liquid distributor, and an emulsion pump connected to the emulsion tank 1. The liquid distributor controls the water pump and the oil supply pump to distribute pure water and emulsified oil into an emulsion of preset concentration, and stores the emulsion in the emulsion tank 1. An agitator is provided in the emulsion tank 1. The agitator can use a conventional reduction drive device to drive the stirring blades in the emulsion tank 1 to rotate, so as to stir the emulsion in the tank to avoid the outlet concentration failing to meet the preset concentration requirement due to uneven mixing or long-term storage. The outlet end of the emulsion tank 1 is provided with a pair of outlet pipes 2, through which the outlet pipes 2 are connected. The pipeline 2 is connected to each emulsion pump respectively, and each emulsion pump is used to supply hydraulic power to the support equipment hydraulic support and other hydraulic power in the coal mine comprehensive mining machinery. A liquid pump 3 is connected to the end of the liquid outlet pipeline 2 close to the emulsion tank 1, which is used to pressurize the liquid out toward the emulsion pump. In particular, a front pipeline 4 and a rear pipeline 5 are connected between two adjacent liquid outlet pipelines 2. The front pipeline 4 is located on the side of the liquid pump 3 close to the emulsion tank 1, and the rear pipeline 5 is located on the other side of the liquid pump 3 away from the emulsion tank 1. A first concentration detector 41 is provided on the front pipeline 4, and an overflow pipeline 6 is externally connected to the middle side end of the rear pipeline 5. A fixed block 51 is provided in the rear pipeline 5, and a sliding core 52 is passed through the fixed block 51 along its length direction. Both ends of the sliding core 52 pass through the fixed The fixed block 51 is outside and extends into the liquid outlet pipe 2. A trickle channel 7 is provided in the sliding core 52. Both ends of the trickle channel 7 are designed to be open and lead to the liquid outlet pipe 2. A through port 71 is provided in the middle of the trickle channel 7 for connecting to the overflow pipe 6. A second concentration detector 61 is provided on the overflow pipe 6. The first concentration detector 41 and the second concentration detector 61 can both adopt existing conventional concentration sensors and other devices for real-time monitoring of the emulsion in the pipe. Due to the influence of various factors such as the beating of the pumping pressure of the pump 3 within the controllable range, the outlet pressure of the emulsion in the pipe will inevitably fluctuate slightly irregularly. With the fluctuation of the outlet pressure in the adjacent liquid outlet pipe 2, the sliding core 52 is driven to move along the inner length of the fixed block 51. When the end of the sliding core 52 vibrates and extends into the liquid outlet pipe 2, a small amount of emulsion of the liquid flows into the trickle channel 7, and then flows into the overflow pipe 6 through the port 71. During the inflow process, the sliding core 52 continues to slide and vibrate, which is equivalent to driving a small amount of emulsion to be further fully mixed, that is, the state concentration of the emulsion after being fully mixed is monitored by the second concentration detector 61. Similarly, when the liquid is discharged from the liquid outlet pipe 2, part of the emulsion will remain in the front pipe 4, and due to the irregular fluctuation of the outlet pressure, a reasonable length and diameter of the front pipe 4 can be set to make part of the emulsion in the front pipe 4 slowly reciprocate to change the liquid, and the state of the emulsion in the front pipe 4 is monitored by the first concentration detector 41.It is equivalent to monitoring the state concentration of the emulsion in the emulsion tank 1 closer to the static state;

[0034] When the first concentration detector 41 detects that the emulsion concentration exceeds the preset range, and the second concentration detector 61 detects that the emulsion concentration is within the preset range, it means that the emulsion in the box may not meet the preset concentration requirement due to uneven mixing or long-term storage, and the agitator is triggered to stir. When the second concentration detector 61 detects that the emulsion concentration exceeds the preset range, it means that the configuration ratio of pure water and emulsified oil in the box may deviate, and the liquid dispenser is triggered to dispense liquid, so as to achieve efficient, sufficient and comprehensive monitoring of the emulsion, and accurate and intelligent liquid preparation and supply.

[0035] Compared with the existing purely static monitoring method in which the detection element is directly immersed in the emulsion in the box, the emulsions in the front pipe 4 and the overflow pipe 6 are in a flowing state, and the detection accuracy will not be affected by the colloid covered by the precipitated colloidal matter in the emulsion, and the liquid phase flow rate in the front pipe 4 and the overflow pipe 6 will not be too fast to affect the detection accuracy. There is no need to set up additional circulation pipes and circulation pumps outside the box to increase additional equipment costs and energy consumption. Moreover, by monitoring the state concentration of the emulsion under multiple states, a more comprehensive monitoring effect can be achieved, and the operation of the agitator and the liquid distributor can be fed back by the detector to achieve further accurate and intelligent liquid distribution and supply effects.

[0036] More preferably, other detection elements such as temperature sensors may be provided on the front pipe 4 and the overflow pipe 6 for more comprehensive monitoring of the emulsion. The front pipe 4 circulates in the box and will not cause waste of the emulsion. Moreover, since the flow rate of the trickle channel 7 is not large, the amount of emulsion flowing out of the overflow pipe 6 is also not large. A recovery box may be connected to the outer end of the overflow pipe 6 to recover the emulsion.

[0037] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, each liquid outlet pipe 2 is arranged in parallel and at intervals at the same height.

[0038] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the front pipe 4 is designed to be U-shaped, and the opening of the U-shape faces upward and is respectively connected to the adjacent liquid outlet pipes 2.

[0039] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the rear pipe 5 is designed to be in a straight line perpendicular to the length direction of the liquid outlet pipe 2, and the two ends of the straight line are respectively connected to the side ends of the adjacent liquid outlet pipe 2.

[0040] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a curved recess 21 is provided on one side of the liquid outlet pipe 2 leading to the rear pipe 5 , and both ends of the sliding core 52 extend into the curved recess 21 .

[0041] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the fixed block 51 can be integrally prepared and connected with the rear pipeline 5, that is, there is no gap between the outer side of the fixed block 51 and the rear pipeline 5, only a through hole for the sliding core 52 to slide back and forth is opened in the fixed block 51, wherein a through groove 53 is opened on one side of the fixed block 51, and a liquid storage box 54 is connected to the middle side of the sliding core 52, and the liquid storage box 54 slides in the through groove 53, and the trickle channel 7 includes an axial channel 72 along the length direction of the sliding core 52, and a radial channel 73 vertically connected to the two ends of the axial channel 72, one end of the radial channel 73 passes through the outside of the sliding core 52 for connecting to the liquid outlet pipeline 2, the through hole 71 is arranged in the middle of the axial channel 72, and is connected to the bottom of the liquid storage box 54, and an overflow port 55 is opened on the upper side of the liquid storage box 54, and is connected to the overflow pipeline 6, optionally, a plurality of radial channels 73 can be arranged along different radial directions, and the sliding core 52 slides in the center position of the fixed block 51 When the piston rod 52 is in the closed position, the piston rod 52 is in the closed position, the piston rod 52 is in the open ...

[0042] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the overflow port 55 is connected to the overflow pipe 6 through a flexible pipe 8. Specifically, the flexible pipe 8 can adopt existing conventional components such as corrugated hoses, elastic hoses, etc. The connection port of the rear pipe 5 leading to the overflow pipe 6 is a flared design, that is, as the liquid storage box 54 vibrates back and forth, the sealed connection between the overflow port 55 and the overflow pipe 6 is still maintained.

[0043] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, a switch valve 9 is provided on the overflow pipe 6 for controlling the on and off of the overflow pipe 6. A limit pin 10 is elastically inserted at the bottom end of the liquid storage box 54. Specifically, the limit pin 10 can be vertically inserted at the bottom end of the liquid storage box 54, and an elastic component such as a spring is connected between the bottom end of the liquid storage box 54 to drive the limit pin 10 to bounce upward. A slide groove 11 can be provided at the bottom end of the through groove 53. As the liquid storage box 54 slides and vibrates, the part of the limit pin 10 that passes through the bottom end of the liquid storage box 54 can slide back and forth along the slide groove 11. A limit pin 10 is provided at the bottom end of the through groove 53 at the middle position of the slide groove 11. When there is no need to monitor the fully mixed state of the emulsion, it is only necessary to directly close the switch valve 9. On the one hand, the outer end of the overflow pipe 6 is controlled to be closed, and on the other hand, as the outer end is closed, the liquid storage box 54 is gradually filled with emulsion and presses against the limit pin 10, so that the limit pin 10 has a tendency to pop up downward. At this time, since the liquid outlet pressure fluctuation in the adjacent liquid outlet pipe 2 still exists, the liquid storage box 54 is still sliding and vibrating until the limit pin 10 slides to the limit port 12 position, pops up downward, and is inserted into the limit port 12. At this time, the sliding core 52 stops sliding and vibrating.

[0044] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, optionally, the bottom end of the liquid storage box 54 is rotatably connected to a pressure plate 13, one end of the pressure plate 13 is rotatably connected to a push rod 14, and an elastic component such as a torsion spring may be provided at the rotational connection to drive the bottom end of the push rod 14 to rotate and push against the inner bottom end of the liquid storage box 54. More preferably, as Figure 5As shown, at this time, one side of the bottom end of the push rod 14 can directly abut against the limit pin 10, so that the pressure plate 13 cannot rotate downward. A blocking block can also be provided on the pressure plate 13 at one side of the top end of the push rod 14 to limit the push rod 14 from continuing to rotate inward, so that the pressure plate 13 cannot rotate downward. The top of the limit pin 10 abuts against the bottom end surface of the pressure plate 13. At the same time, a floating member 15 is provided in the liquid storage box 54, and the floating member 15 is connected to the bottom end of the push rod 14 through a pull rope 16. Specifically, a fixing ring is connected to the bottom end of the liquid storage box 54, and one end of the pull rope 16 passes through the fixing ring and is connected to the bottom end of the push rod 14. The floating member 15 can adopt an existing conventional hollow floating ball or other device. More preferably, a floating rod member 17 can also be connected to the outside of the floating member 15. When the liquid storage box 54 slides and vibrates, it drives the floating member 15 and the floating rod member 17 to swing, which plays a role in further vibrating the mixed emulsion. When the switch valve 9 is closed, as shown in FIG. Figure 7 As shown, the emulsion filled in the liquid storage box 54 drives the floating member 15 to float up, so that the pull rope 16 pulls the push rod 14 to rotate outward, and at the same time, the emulsion presses the pressure plate 13 to rotate downward, which is used to push the limit pin 10 to pop out downward. When the switch valve 9 is reopened, the emulsion in the liquid storage box 54 is discharged to the overflow pipe 6, and the limit pin 10 pops up, so that the pressure plate 13 and the push rod 14 return to their initial state.

[0045] Among them, the better ones are Figure 6 As shown, a sealing cloth 56 can be connected between the outer side of the edge of the pressure plate 13 and the inner bottom end of the liquid storage box 54, which is used to seal and cover the pressure plate 13 and the limit pin 10, leaving only the push rod 14 exposed in the liquid storage box 54, to prevent the emulsion from seeping out of the box along the gap between the limit pin 10 and the pressure plate 13. When the pressure plate 13 rotates upward, the sealing cloth 56 is tightened. If a separate limit pin 10 is used, the sealing cloth 56 is covered and sealed on the outside of the limit pin 10.

[0046] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, distance sensors 18 are respectively provided on both sides of the through groove 53, and the distance sensors 18 are electrically connected to the liquid pump 3. The position of the liquid storage box 54 is detected by the distance sensor 18, and is used to fine-tune the liquid outlet pressure in the adjacent liquid outlet pipe 2, so that the sliding core 52 maintains a sliding vibration state. Specifically, when the distance sensor 18 detects that the liquid storage box 54 is close to the side wall of the through groove 53 on one side more frequently or for a longer time, the corresponding liquid pump 3 is triggered to make pressure fine-tuning, for example Figure 4As shown, if the liquid storage box 54 approaches the side wall of the through groove 53 on the upper side of the figure more frequently or for a longer time, the liquid pumping pressure of the upper side can be triggered to increase. If the next time it is monitored that the liquid storage box 54 approaches the side wall of the through groove 53 on the other side more frequently or for a longer time, the liquid pumping pressure of the upper side can be triggered to decrease. By having two adjacent pressure fine-tuning directions in opposite directions, a large deviation in the overall liquid outlet pressure can be avoided. If the distance sensor 18 detects that the distance between the liquid storage box 54 and the inner wall of the through groove 53 is less than a preset value, that is, the liquid storage box 54 is too close to the side wall of the through groove 53 on one side, it means that a large deviation has occurred in the liquid pumping pressure of the liquid pump 3 at this time, and an alarm can be triggered. Specifically, an alarm can be set to promptly remind the staff when the alarm is triggered.

[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

Claims

1. An intelligent emulsion pump station for coal mines, comprising a liquid distributor, a water tank connected to the liquid inlet end of the liquid distributor via a water pump, an oil storage tank connected to the liquid inlet end of the liquid distributor via an oil supply pump, an emulsion tank (1) connected to the liquid outlet end of the liquid distributor, and an emulsion pump connected to the emulsion tank (1), characterized in that: The emulsion tank (1) is provided with a stirrer, and the liquid outlet end of the emulsion tank (1) is provided with liquid outlet pipes (2) in pairs, which are respectively connected to the emulsion pumps through the liquid outlet pipes (2), and the end of the liquid outlet pipe (2) close to the emulsion tank (1) is connected to a liquid pump (3) for pressurizing the liquid out toward the emulsion pump; A front pipe (4) and a rear pipe (5) are connected between two adjacent liquid outlet pipes (2). The front pipe (4) is located on a side of the liquid pump (3) close to the emulsion tank (1), and the rear pipe (5) is located on the other side of the liquid pump (3) away from the emulsion tank (1). A first concentration detector (41) is provided on the front pipe (4). An overflow pipe (6) is externally connected to the middle side end of the rear pipe (5). A fixed block (51) is provided in the rear pipe (5). A sliding core (52) is passed through the fixed block (51) along its length direction. Both ends of the sliding core (52) pass through the fixed block (51) and extend into the liquid outlet pipe (2). As the liquid outlet pressure in the adjacent liquid outlet pipe (2) fluctuates, the sliding core (52) is driven to slide and vibrate along the length direction in the fixed block (51). The sliding core (52) is provided with a fine flow channel (7), both ends of which are designed to be open and connected to the liquid outlet pipe (2), and a through opening (71) is provided in the middle of the fine flow channel (7) for connecting to the overflow pipe (6), and a second concentration detector (61) is provided on the overflow pipe (6). When the first concentration detector (41) detects that the concentration of the emulsion exceeds a preset range, and the second concentration detector (61) detects that the concentration of the emulsion is within the preset range, the stirrer is triggered to stir, and when the second concentration detector (61) detects that the concentration of the emulsion exceeds the preset range, the liquid distributor is triggered to dispense liquid.

2. The intelligent emulsion pump station for coal mine according to claim 1, characterized in that: The liquid outlet pipes (2) are arranged in parallel and at intervals at the same height.

3. The intelligent emulsion pump station for coal mine according to claim 2, characterized in that: The front pipe (4) is designed to be U-shaped, with the opening of the U-shaped facing upwards, and is respectively connected to adjacent liquid outlet pipes (2).

4. The intelligent emulsion pump station for coal mine according to claim 2, characterized in that: The rear pipe (5) is designed to be in a straight line perpendicular to the length direction of the liquid outlet pipe (2), and the two ends of the straight line are respectively connected to the side ends of the adjacent liquid outlet pipe (2).

5. The intelligent emulsion pump station for coal mine according to claim 1, characterized in that: A curved surface recess (21) is provided on one side of the liquid outlet pipe (2) leading to the rear pipe (5), and both ends of the sliding core (52) extend into the curved surface recess (21).

6. The intelligent emulsion pump station for coal mine according to claim 1, characterized in that: A through groove (53) is provided on one side of the fixed block (51); a liquid storage box (54) is connected to a middle side of the sliding core (52); the liquid storage box (54) is slidably located in the through groove (53); the thin flow channel (7) includes an axial channel (72) along the length direction of the sliding core (52), and a radial channel (73) vertically connected to both ends of the axial channel (72); one end of the radial channel (73) passes through the sliding core (52) to connect to the liquid outlet pipe (2); the through port (71) is provided in the middle of the axial channel (72) and is connected to the bottom of the liquid storage box (54); an overflow port (55) is provided on an upper side of the liquid storage box (54) and is connected to the overflow pipe (6).

7. The intelligent emulsion pump station for coal mine according to claim 6, characterized in that: The overflow port (55) is connected to the overflow pipe (6) via a flexible pipe (8).

8. The intelligent emulsion pump station for coal mine according to claim 6, characterized in that: The overflow pipe (6) is provided with a switch valve (9), the bottom end of the liquid storage box (54) is elastically plugged with a limit pin (10), and the bottom end of the through groove (53) is provided with a limit opening (12). When the switch valve (9) is closed, the limit pin (10) is pressed by the emulsion filled in the liquid storage box (54), so that the limit pin (10) pops up downward until it is plugged into the limit opening (12), and the sliding core (52) stops sliding and vibrating.

9. The intelligent emulsion pump station for coal mine according to claim 8, characterized in that: The bottom end of the liquid storage box (54) is rotatably connected to a pressure plate (13), and one end of the pressure plate (13) is rotatably connected to a push rod (14). The bottom end of the push rod (14) abuts against the inner bottom end of the liquid storage box (54) to prevent the pressure plate (13) from rotating downward. The top end of the limit pin (10) abuts against the bottom end surface of the pressure plate (13). A floating member (15) is provided in the liquid storage box (54). The floating member (15) is connected to the bottom end of the push rod (14) through a pull rope (16). When the switch valve (9) is closed, the emulsion filled in the liquid storage box (54) drives the floating member (15) to float up, so that the pull rope (16) pulls the push rod (14) to rotate outward, and at the same time, the emulsion presses the pressure plate (13) to rotate downward, so as to push the limit pin (10) to pop out downward.

10. The intelligent emulsion pump station for coal mine according to claim 6, characterized in that: Distance sensors (18) are respectively provided on both sides of the through groove (53). The distance sensors (18) are electrically connected to the liquid pump (3). The position of the liquid storage box (54) is detected by the distance sensor (18) to fine-tune the liquid outlet pressure in the adjacent liquid outlet pipe (2) so that the sliding core (52) maintains a sliding vibration state. When the distance sensor (18) detects that the distance between the liquid storage box (54) and the inner wall of the through groove (53) is less than a preset value, an alarm is triggered.

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