Solid pump lift valve for filling and mining in mining area

Abstract

The solid pump lift valve is characterized in that two groups of material suction assemblies arranged in parallel comprise material suction ports and material passing pipes which are integrally formed, lifting assemblies are fixedly arranged at the upper ends of the material passing pipes, the material suction ports are obliquely formed in one sides of the material passing pipes, and the output ends of the lifting assemblies extend into the material passing pipes and can hermetically cover the lower ends of the material suction ports; the lifting assembly comprises a first lifting cylinder assembly and a second lifting cylinder assembly which are parallel and perpendicularly arranged, the first lifting cylinder assembly and the second lifting cylinder assembly are of the same structure, the lower ends of the first lifting cylinder assembly and the second lifting cylinder assembly communicate with the middle of the high-pressure assembly, and the front end of the high-pressure assembly communicates with the conveying assembly. And the rear end of the high-pressure assembly is hermetically coated with a discharging assembly. The whole structure is simple, abrasion of the lifting assembly is reduced, the whole working noise is lowered, slurry is pumped to the discharging assembly by the conveying assembly in the high-pressure assembly, the slurry is continuously pumped back and forth by the conveying assembly, and long-distance high-pressure conveying of the slurry is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of mining equipment, in particular to a solid pump lifting valve used in mining filling. Background Art

[0002] The existing HSP solid pump is very popular in the field of fine-particle fluid transportation because of its advanced design concept, reliable quality, stable performance and other characteristics. When conveying low-pressure, fine-particle materials, the HSP solid pump has the advantages of good sealing performance, long service life of wearing parts, and low pumping noise. However, in the working conditions where the conveying materials contain large-particle coarse aggregates, large flow and high pressure, it is easy to cause valve stem bending and deformation, valve disc falling off, oil leakage and other situations that affect the normal production of HSP solids.

[0003] The HSP lifting valve pump adopts a hydraulically driven lifting valve to realize the switching of feeding and discharging of the conveying pipe, and requires that the conveying interruption time caused by the switching of feeding and discharging is very short, so as to ensure that there is no material return under high-pressure conveying conditions. During the operation, the lifting valve in the prior art needs to rise and fall frequently, and the piston rod of the hydraulic cylinder needs to be in direct contact with the high-pressure conveying slurry. If this design is used in the working condition of conveying fine-grained materials, it has the advantages of good sealing and small reversing impact. However, if this design is used for long-distance and high-pressure conveying of materials containing coarse aggregates, it has the following defects: 1. The piston rod is in direct contact with the high-pressure conveying slurry, which increases the wear and tear, and the sealing of the hydraulic cylinder is 1. Reduced performance, reduced life, and high noise; 2. The piston rod is impacted by the high-pressure conveying slurry, and the valve seat and the valve base are not concentric after plastic deformation, which reduces the sealing performance and is prone to high-speed jet damage, reducing the service life of the valve disc and the valve base; 3. The coarse aggregate particles cause the valve stem to deform during the high-pressure and high-speed conveying process, which will cause damage to the valve cylinder and abnormal shutdown of the equipment; 4. The valve disc is easily disturbed by the coarse aggregate, resulting in sealing failure, leading to abnormal pumping conditions such as slurry reflux; 5. Long-term, high-frequency and strong impacts will cause fatigue effects on the valve disc fastening bolts, which can easily cause the valve disc to loosen or even fall off. Loosening or falling off of the valve disc will cause frequent blockages in the conveying pipeline. Summary of the invention

[0004] The purpose of the present invention is to provide a solid pump lift valve with a simple structure, which can avoid slurry backflow during operation and can efficiently and stably complete the transportation of slurry, thereby effectively solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions.

[0006] A solid pump lifting valve for filling and opening in a mine area is characterized in that it includes a suction component, a lifting component, a high-pressure component, a conveying component and a discharge component, two groups of parallel suction components include an integrally formed suction port and a feeding pipe, a lifting component is fixedly provided at the upper end of the feeding pipe, a suction port is obliquely provided on one side of the feeding pipe, the output end of the lifting component extends into the feeding pipe and can sealably cover the lower end of the suction port; the lifting component includes two parallel and vertically arranged first lifting cylinder components and a second lifting cylinder component, the first lifting cylinder component and the second lifting cylinder component have the same structure, the lower ends of the first lifting cylinder component and the second lifting cylinder component are both connected to the middle of the high-pressure component, the front end of the high-pressure component is connected to the conveying component, and the rear end of the high-pressure component is sealed and covered with a discharge component.

[0007] Preferably, the first lifting cylinder assembly and the second lifting cylinder assembly each include a lifting cylinder body, a clamp, a piston rod and a sealing valve disc. The upper end of the feeding pipe is fixedly provided with a lifting cylinder body, and the lifting cylinder body is transmission-connected to the piston rod via a clamp. The lower end of the piston rod is fixedly connected to the sealing valve disc, and the sealing valve disc can slide and seal along the inner side of the feeding pipe.

[0008] Preferably, the high-pressure component includes a high-pressure main valve, a first high-pressure oil cylinder, a second high-pressure oil cylinder, a first high-pressure valve disc, a second high-pressure valve disc, a first sealing ring and a second sealing ring. The lower end of the feed pipe is sealed and connected to the upper end of the high-pressure main valve through a high-pressure flange. A communicating cavity is provided in the high-pressure main valve. The front end of the high-pressure main valve is connected to the conveying component. The rear end of the high-pressure main valve is fixedly sealed and connected to the discharge component. The first high-pressure oil cylinder and the second high-pressure oil cylinder are penetrated in the discharge component. The output end of the first high-pressure oil cylinder is drivingly connected to the first high-pressure valve disc. The front end of the first high-pressure valve disc is circumferentially provided with a first sealing ring, and the first sealing ring can be adapted to be inserted into the connection between the high-pressure main valve and the discharge component; the output end of the second high-pressure oil cylinder is drivingly connected to the second high-pressure valve disc. The front end of the second high-pressure valve disc is circumferentially provided with a second sealing ring, and the second sealing ring can be adapted to be inserted into the connection between the high-pressure main valve and the discharge component.

[0009] Preferably, the conveying assembly includes a first concrete cylinder assembly, a second concrete cylinder assembly, a first conveying oil cylinder and a second conveying oil cylinder. The front end of the high-pressure main valve is sealed and fixedly connected to one end of the first concrete cylinder assembly and the second concrete cylinder assembly. The first concrete cylinder assembly is arranged in parallel with the second concrete cylinder assembly. The other end of the first concrete cylinder assembly is fixedly connected to the output end of the first conveying oil cylinder; the other end of the second concrete cylinder assembly is fixedly connected to the output end of the second conveying oil cylinder.

[0010] Preferably, the discharging assembly includes a discharging box, a discharging sealing ring and a discharging port, the rear end of the high-pressure main valve is sealed and fixed to the front end of the discharging box, two installation grooves are provided at the connection between the discharging box and the high-pressure main valve, a discharging sealing ring is provided in the installation groove, and the outer diameter of the discharging sealing ring is larger than the opening diameter of the rear end of the high-pressure main valve; the rear end of the discharging box is respectively parallelly and fixedly penetrated with the first high-pressure oil cylinder and the second high-pressure oil cylinder, and the first sealing ring and the second second sealing ring can be contacted and sealed with the two discharging sealing rings respectively; a discharging port is provided in the middle of the upper end of the discharging box.

[0011] Preferably, the first concrete cylinder assembly and the second concrete cylinder assembly have the same structure, and the first concrete cylinder assembly and the second concrete cylinder assembly both include a mounting plate, a concrete cylinder body, a connecting rod, a piston body, a transition ring and a concrete cylinder piston. The front end of the high-pressure main valve is fixedly connected to one end of the concrete cylinder body through the mounting plate, a connecting rod is provided in the concrete cylinder body, and one end of the connecting rod is fixedly connected to the output end of the first delivery oil cylinder or the second delivery oil cylinder; the other end of the connecting rod is adaptably connected to the piston body, and a transition ring is provided in the piston body, and the transition ring adaptably connects the piston body to the concrete cylinder piston.

[0012] Preferably, the first conveying oil cylinder and the second conveying oil cylinder have the same structure, and the output ends of the first conveying oil cylinder and the second conveying oil cylinder are respectively fixedly connected to one end of the middle connecting rod through the cylinder flange, and the other end of the middle connecting rod is fixedly connected to one end of the connecting rod through the concrete cylinder flange.

[0013] Preferably, the height of the sealing valve disc is greater than the height of the connection between the material passing pipe and the material suction port.

[0014] Preferably, a water tank is sealed at the connection between the first concrete cylinder assembly, the second concrete cylinder assembly, the first delivery oil cylinder and the second delivery oil cylinder, and a water outlet is provided at the bottom of the water tank.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention includes two sets of parallel suction components, including an integrally formed suction port and a feeding pipe, a lifting component is fixedly provided at the upper end of the feeding pipe, a suction port is obliquely provided on one side of the feeding pipe, and the output end of the lifting component extends into the feeding pipe and can seal and cover the lower end of the suction port; the lifting component includes two parallel and vertically arranged first lifting cylinder components and second lifting cylinder components, the first lifting cylinder components and the second lifting cylinder components are of the same structure, the lower ends of the first lifting cylinder components and the second lifting cylinder components are both connected to the middle of the high-pressure component, the front end of the high-pressure component is connected to the conveying component, and the rear end of the high-pressure component is sealed and covered with a discharge component. The overall structure of the present invention is simple. During operation, the slurry is sucked in from the measured direction of the suction port, the piston rod and the slurry conveyed under high pressure will not directly contact, the wear of the lifting component is reduced, the sealing performance and service life of the first lifting cylinder component and the second lifting cylinder component are improved, and the overall working noise is reduced. The slurry is pumped to the discharge component by the conveying component in the high-pressure component, and the conveying component continuously reciprocates the slurry to achieve long-distance and high-pressure conveying of the slurry. The piston rod drives the sealing valve disc to reciprocate up and down to achieve the function of opening and closing the suction port. The sealing valve disc is in direct contact with the steel structure of the feed pipe to achieve a sealing effect, preventing high-pressure fluid from entering the suction port.

[0017] (2) The first lifting cylinder assembly and the second lifting cylinder assembly of the present invention both include a lifting cylinder body, a clamp, a piston rod and a sealing valve disc. The upper end of the feeding pipe is fixedly provided with a lifting cylinder body, which is connected to the piston rod through a clamp. The lower end of the piston rod is fixedly connected to the sealing valve disc. The sealing valve disc can slide and seal along the inner side of the feeding pipe and can withstand long-term, high-frequency and strong impacts. This avoids the metal fatigue problem caused by the use of fastening bolts to connect the lifting cylinder body and the piston rod under long-term stress in the prior art, and greatly reduces the failure caused by loosening or falling off of the sealing valve disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the present invention cut along the first lifting cylinder assembly during material suction.

[0020] Figure 3 This is a schematic structural diagram of the present invention when punching materials, cut along the second lifting cylinder assembly. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figures 1 to 3As shown, a solid pump lifting valve for filling and opening in a mining area includes a suction port 1, a material passing pipe 2, a first lifting cylinder assembly 3, a second lifting cylinder assembly 4, a lifting cylinder body 5, a clamp 6, a piston rod 7, a sealing valve disc 8, a high-pressure main valve 9, a first high-pressure oil cylinder 10, a second high-pressure oil cylinder 11, a first high-pressure valve disc 12, a second high-pressure valve disc 13, a first sealing ring 14, a second sealing ring 15, a high-pressure flange 16, a first concrete cylinder assembly 17, a second concrete cylinder assembly 18, a first conveying oil cylinder 19, a second conveying oil cylinder 20, a discharge box 21, a discharge sealing ring 22, a discharge port 23, a mounting plate 24, a concrete cylinder body 25, a connecting rod 26, a piston body 27, a transition ring 28, a concrete cylinder piston 29, a cylinder flange 30, an intermediate connecting rod 31, a concrete cylinder flange 32, a water tank 33, and a water outlet 34.

[0023] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figures 1 to 3 As shown, two groups of parallel suction assemblies include an integrally formed suction port 1 and a feeding pipe 2, a lifting assembly is fixedly provided at the upper end of the feeding pipe 2, a suction port 1 is obliquely provided on one side of the feeding pipe 2, and the output end of the lifting assembly extends into the feeding pipe 2 and can seal and cover the lower end of the suction port 1; the lifting assembly includes two parallel and vertically arranged first lifting cylinder assemblies 3 and second lifting cylinder assemblies 4, the first lifting cylinder assembly 3 and the second lifting cylinder assembly 4 have the same structure, the lower ends of the first lifting cylinder assembly 3 and the second lifting cylinder assembly 4 are both connected to the middle of the high-pressure assembly, the front end of the high-pressure assembly is connected to the conveying assembly, and the rear end of the high-pressure assembly is sealed and covered with a discharge assembly.

[0026] The first lifting cylinder assembly 3 and the second lifting cylinder assembly 4 both include a lifting cylinder body 5, a clamp 6, a piston rod 7 and a sealing valve disc 8. The lifting cylinder body 5 is fixedly provided at the upper end of the feeding pipe 2. The lifting cylinder body 5 is connected to the piston rod 7 through the clamp 6. The lower end of the piston rod 7 is fixedly connected to the sealing valve disc 8. The sealing valve disc 8 can slide and seal along the inner side of the feeding pipe 2, and the height of the sealing valve disc 8 is greater than the height of the connection between the feeding pipe 2 and the suction port 1. When the sealing valve disc 8 descends, it can completely block the connection between the suction port 1 and the feeding pipe 2 to achieve a better sealing effect, so that the first lifting cylinder assembly 3 and the second lifting cylinder assembly 4 can withstand long-term, high-frequency and strong impacts, avoiding the metal fatigue problem caused by the use of fastening bolts to connect the lifting cylinder body 5 and the piston rod 7 for a long time under force in the prior art, and greatly reducing the failure caused by the loosening or falling off of the sealing valve disc 8.

[0027] The high-pressure component includes a high-pressure main valve 9, a first high-pressure oil cylinder 10, a second high-pressure oil cylinder 11, a first high-pressure valve disc 12, a second high-pressure valve disc 13, a first sealing ring 14 and a second sealing ring 15. The lower end of the feeding pipe 2 is sealed and connected to the upper end of the high-pressure main valve 9 through a high-pressure flange 16. A communicating cavity is provided in the high-pressure main valve 9. The front end of the high-pressure main valve 9 is connected to the conveying component. The rear end of the high-pressure main valve 9 is fixedly sealed and connected to the discharge component. The first high-pressure oil cylinder 10 and the second high-pressure oil cylinder 11 are penetrated in the discharge component. The output end of the first high-pressure oil cylinder 10 is transmission-connected to the first high-pressure valve disc 12. The front end of the first high-pressure valve disc 12 is circumferentially provided with a first sealing ring 14, and the first sealing ring 14 can be adapted to be inserted into the connection between the high-pressure main valve 9 and the discharge component; the output end of the second high-pressure oil cylinder 11 is transmission-connected to the second high-pressure valve disc 13. The front end of the second high-pressure valve disc 13 is circumferentially provided with a second sealing ring 15, and the second sealing ring 15 can be adapted to be inserted into the connection between the high-pressure main valve 9 and the discharge component.

[0028] The conveying assembly includes a first concrete cylinder assembly 17, a second concrete cylinder assembly 18, a first conveying oil cylinder 19 and a second conveying oil cylinder 20. The front end of the high-pressure main valve 9 is sealed and fixedly connected to one end of the first concrete cylinder assembly 17 and the second concrete cylinder assembly 18. The first concrete cylinder assembly 17 and the second concrete cylinder assembly 18 are arranged in parallel. The other end of the first concrete cylinder assembly 17 is fixedly connected to the output end of the first conveying oil cylinder 19; the other end of the second concrete cylinder assembly 18 is fixedly connected to the output end of the second conveying oil cylinder 20. Specifically, the first concrete cylinder assembly 17 and the second concrete cylinder assembly 18 have the same structure. The first concrete cylinder assembly 17 and the second concrete cylinder assembly 18 both include a mounting plate 24, a concrete cylinder body 25, a connecting rod 26, a piston body 27, a transition ring 28 and a concrete cylinder piston 29. The front end of the high-pressure main valve 9 is fixedly connected to one end of the concrete cylinder body 25 through the mounting plate 24. The concrete cylinder body 25 is provided with a connecting rod 26. One end of the connecting rod 26 is fixedly connected to the output end of the first delivery oil cylinder 19 or the second delivery oil cylinder 20; the other end of the connecting rod 26 is adaptively connected to the piston body 27. The piston body 27 is provided with a transition ring 28. The transition ring 28 adaptively connects the piston body 27 to the concrete cylinder piston 29. The first delivery oil cylinder 19 and the second delivery oil cylinder 20 have the same structure. The output ends of the first delivery oil cylinder 19 and the second delivery oil cylinder 20 are respectively fixedly connected to one end of the middle connecting rod 31 through the cylinder flange 30. The other end of the middle connecting rod 31 is fixedly connected to one end of the connecting rod 26 through the concrete cylinder flange 32.

[0029] The first lifting cylinder assembly 3 and the second lifting cylinder assembly 4 have the same structure, and the first concrete cylinder assembly 17 and the second concrete cylinder assembly 18 have the same structure, so that related replacement materials can be shared in subsequent maintenance of the equipment, reducing equipment costs.

[0030] The discharging assembly includes a discharging box 21, a discharging sealing ring 22 and a discharging port 23. The rear end of the high-pressure main valve 9 is sealed and fixed to the front end of the discharging box 21. Two mounting grooves are provided at the connection between the discharging box 21 and the high-pressure main valve 9. A discharging sealing ring 22 is provided in the mounting groove. The outer diameter of the discharging sealing ring 22 is larger than the opening diameter of the rear end of the high-pressure main valve 9. The rear end of the discharging box 21 is respectively and parallelly and fixedly penetrated with the first high-pressure oil cylinder 10 and the second high-pressure oil cylinder 11, and the first sealing ring 14 and the second second sealing ring 15 are respectively contactable and sealed with the two discharging sealing rings 22. A discharging port 23 is provided in the middle of the upper end of the discharging box 21.

[0031] In this embodiment, the first high-pressure oil cylinder 10, the first high-pressure valve disc 12, the first concrete cylinder assembly 17 and the first conveying oil cylinder 19 are coaxially arranged, and the second high-pressure oil cylinder 11, the second high-pressure valve disc 13, the second concrete cylinder assembly 18 and the second conveying oil cylinder 20 are coaxially arranged, thereby improving the pressure stability during the entire slurry transportation, improving the sealing between the high-pressure assembly and the discharge assembly, the conveying assembly and the lifting assembly, avoiding high-speed jet damage generated during the working process, and improving the overall service life of the equipment.

[0032] A water tank 33 is sealed at the connection between the first concrete cylinder assembly 17, the second concrete cylinder assembly 18, the first delivery oil cylinder 19 and the second delivery oil cylinder 20, and a water outlet 34 is provided at the bottom of the water tank 33 for easy cleaning.

[0033] The working principle of the present invention is: Figure 2 As shown, the lifting cylinder body 5 of the first lifting cylinder assembly 3 is lifted upward, the piston rod 7 of the first lifting cylinder assembly 3 drives the sealing valve disc 8 to withdraw from the connection between the suction port 1 and the material passing pipe 2, the first high-pressure oil cylinder 10 extends, so that the first sealing ring 14 on the first high-pressure valve disc 12 blocks the discharge sealing ring 22 matched therewith, the first concrete cylinder assembly 17 retreats, and the slurry is sucked into the concrete cylinder body 25 of the first concrete cylinder assembly 17 from the discharge port 1 on the first lifting cylinder assembly 3 along the high-pressure main valve 9;

[0034] At the same time, Figure 3 As shown, the lifting cylinder body 5 of the second lifting cylinder assembly 4 descends, so that the sealing valve disc 8 of the second lifting cylinder assembly 4 slides to the connection point between the suction port 1 and the material passing pipe 2 and seals, and the second high-pressure oil cylinder 11 retracts, so that the second sealing ring 15 on the second high-pressure valve disc 13 is away from the corresponding discharge sealing ring 22, and the high-pressure main valve 9 is connected with the discharge box 21, and the second concrete cylinder assembly 18 extends, and the slurry sucked into the high-pressure main valve 9 and the first concrete cylinder assembly 17 is pumped out of the high-pressure main valve 9, and the slurry is smoothly discharged from the discharge port 23 on the discharge box 21;

[0035] The first concrete cylinder assembly 17 and the second concrete cylinder assembly 18 repeat the above-mentioned actions to reciprocately transport the slurry, thereby realizing long-distance and high-pressure transportation of the slurry.

[0036] The discharge port 1 on the first lifting cylinder assembly 3 or the second lifting cylinder assembly 4 can be selected as the suction assembly according to the on-site work requirements. This embodiment uses the first lifting cylinder assembly 3 as an example to demonstrate the working process.

[0037] During the working process of conveying slurry, the piston rod 7 drives the sealing valve disc 8 to reciprocate up and down to achieve the function of opening and closing the suction port 1. The sealing valve disc 8 is in direct contact with the steel structure of the material pipe 2 to achieve the sealing effect, preventing the high-pressure fluid from entering the suction port 1; the piston rod 7 and the slurry conveyed under high pressure will not be in direct contact, reducing the wear of the lifting component, improving the sealing performance and service life of the first lifting cylinder component 3 and the second lifting cylinder component 4, and reducing the overall working noise. The slurry is pumped to the discharge component by the conveying component in the high-pressure component, and the conveying component continuously reciprocates the slurry to avoid slurry backflow. The overall structure is simple and can efficiently and stably complete the conveying of the slurry. Even if the coarse aggregate particles are conveyed under high pressure and high speed for a long time, the piston rod 7 or the high-pressure component will not be deformed, avoiding damage to the high-pressure main valve 9, and facilitating the normal and continuous operation of the equipment.

[0038] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of rights of the present invention. Therefore, modifications, equivalent changes, improvements, etc. made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A solid pump lift valve for filling and opening in a mining area, characterized in that: It comprises a suction component, a lifting component, a high-pressure component, a conveying component and a discharge component. The two groups of suction components arranged in parallel comprise an integrally formed suction port (1) and a feeding pipe (2). The upper end of the feeding pipe (2) is fixedly provided with a lifting component. One side of the feeding pipe (2) is obliquely provided with a suction port (1). The output end of the lifting component extends into the feeding pipe (2) and can sealably cover the lower end of the suction port (1). The lifting component comprises two parallel and vertically arranged first lifting cylinder components (3) and second lifting cylinder components (4). The first lifting cylinder component (3) and the second lifting cylinder component (4) have the same structure. The lower ends of the first lifting cylinder component (3) and the second lifting cylinder component (4) are both connected to the middle of the high-pressure component. The front end of the high-pressure component is connected to the conveying component. The rear end of the high-pressure component is sealed and covered with a discharge component.

2. A solid pump lift valve for mining filling according to claim 1, characterized in that: The first lifting cylinder assembly (3) and the second lifting cylinder assembly (4) both comprise a lifting cylinder body (5), a clamp (6), a piston rod (7) and a sealing valve disc (8); the lifting cylinder body (5) is fixedly provided at the upper end of the feeding pipe (2); the lifting cylinder body (5) is transmission-connected to the piston rod (7) via the clamp (6); the lower end of the piston rod (7) is fixedly connected to the sealing valve disc (8); and the sealing valve disc (8) can slide and seal along the inner side of the feeding pipe (2).

3. A solid pump lift valve for filling and excavation in a mine according to claim 2, characterized in that: The high-pressure component comprises a high-pressure main valve (9), a first high-pressure oil cylinder (10), a second high-pressure oil cylinder (11), a first high-pressure valve disc (12), a second high-pressure valve disc (13), a first sealing ring (14) and a second sealing ring (15); the lower end of the feed pipe (2) is sealedly connected to the upper end of the high-pressure main valve (9) via a high-pressure flange (16); a communicating cavity is provided in the high-pressure main valve (9); the front end of the high-pressure main valve (9) is communicated with the conveying component; the rear end of the high-pressure main valve (9) is fixedly sealedly connected to a discharge component; the first high-pressure oil cylinder (10) and the second high-pressure oil cylinder (11) are passed through the discharge component. The output end of the first high-pressure oil cylinder (10) is connected to the first high-pressure valve disc (12) in a transmission manner, and a first sealing ring (14) is provided on the circumference of the front end of the first high-pressure valve disc (12), and the first sealing ring (14) can be adapted to be inserted into the connection between the high-pressure main valve (9) and the discharge assembly; the output end of the second high-pressure oil cylinder (11) is connected to the second high-pressure valve disc (13), and a second sealing ring (15) is provided on the circumference of the front end of the second high-pressure valve disc (13), and the second sealing ring (15) can be adapted to be inserted into the connection between the high-pressure main valve (9) and the discharge assembly.

4. A solid pump lift valve for mining filling according to claim 3, characterized in that: The conveying assembly comprises a first concrete cylinder assembly (17), a second concrete cylinder assembly (18), a first conveying oil cylinder (19) and a second conveying oil cylinder (20); the front end of the high-pressure main valve (9) is sealed and fixedly connected to one end of the first concrete cylinder assembly (17) and the second concrete cylinder assembly (18); the first concrete cylinder assembly (17) and the second concrete cylinder assembly (18) are arranged in parallel; the other end of the first concrete cylinder assembly (17) is fixedly connected to the output end of the first conveying oil cylinder (19); the other end of the second concrete cylinder assembly (18) is fixedly connected to the output end of the second conveying oil cylinder (20).

5. A solid pump lift valve for mining filling according to claim 3 or 4, characterized in that: The discharge assembly comprises a discharge box (21), a discharge sealing ring (22) and a discharge port (23); the rear end of the high-pressure main valve (9) is sealed and fixed to the front end of the discharge box (21); two installation grooves are provided at the connection between the discharge box (21) and the high-pressure main valve (9); a discharge sealing ring (22) is provided in the installation groove; the outer diameter of the discharge sealing ring (22) is larger than the opening diameter of the rear end of the high-pressure main valve (9); a first high-pressure oil cylinder (10) and a second high-pressure oil cylinder (11) are respectively and parallelly and fixedly provided at the rear end of the discharge box (21); the first sealing ring (14) and the second sealing ring (15) are respectively contactable and sealable with the two discharge sealing rings (22); and a discharge port (23) is provided in the middle of the upper end of the discharge box (21).

6. A solid pump lift valve for mining filling according to claim 5, characterized in that: The first concrete cylinder assembly (17) and the second concrete cylinder assembly (18) have the same structure. The first concrete cylinder assembly (17) and the second concrete cylinder assembly (18) both comprise a mounting plate (24), a concrete cylinder body (25), a connecting rod (26), a piston body (27), a transition ring (28) and a concrete cylinder piston (29). The front end of the high-pressure main valve (9) is fixedly connected to one end of the concrete cylinder body (25) through the mounting plate (24). A connecting rod (26) is arranged inside the concrete cylinder body (25). One end of the connecting rod (26) is fixedly connected to the output end of the first oil delivery cylinder (19) or the second oil delivery cylinder (20). The other end of the connecting rod (26) is adaptively connected to the piston body (27). A transition ring (28) is arranged inside the piston body (27). The transition ring (28) adaptively connects the piston body (27) and the concrete cylinder piston (29).

7. A solid pump lift valve for mining filling according to claim 6, characterized in that: The first oil delivery cylinder (19) and the second oil delivery cylinder (20) have the same structure. The output ends of the first oil delivery cylinder (19) and the second oil delivery cylinder (20) are respectively fixedly connected to one end of a middle connecting rod (31) through an oil cylinder flange (30). The other end of the middle connecting rod (31) is fixedly connected to one end of the connecting rod (26) through a concrete cylinder flange (32).

8. A solid pump lift valve for mining filling according to claim 3 or 4, characterized in that: The height of the sealing valve disc (8) is greater than the height of the connection between the material passing pipe (2) and the material suction port (1).

9. A solid pump lift valve for mining filling according to claim 7, characterized in that: A water tank (33) is sealed at the connection between the first concrete cylinder assembly (17), the second concrete cylinder assembly (18), the first oil delivery cylinder (19) and the second oil delivery cylinder (20), and a water outlet (34) is provided at the bottom of the water tank (33).

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