Movable energy-saving type double-cylinder double-feeding sucking and conveying equipment

Abstract

The utility model relates to the technical field of coal mine coal slime conveying equipment, in particular to movable energy-saving type double-cylinder double-feeding sucking and conveying equipment which comprises a crawler hydraulic walking assembly, a piston pressurizing energy-saving pump system and an electric assembly from bottom to top. The piston pressurization energy-saving pump system comprises a material suction pipe, a double-cylinder double-feeding and double-discharging shared pipe, two working cylinders and two hydraulic piston cylinders, the working cylinders and the hydraulic piston cylinders are used for driving the material suction pipe and the double-cylinder double-feeding and double-discharging shared pipe, four sets of feeding one-way spherical check valves are arranged at a feeding port of the material suction pipe, and the two sets of feeding one-way spherical check valves are arranged at a discharging port of the material suction pipe. And four groups of discharging one-way spherical check valves are arranged at a discharging opening of the material suction pipe. The utility model solves the problems of the defects of other types of pumps, and has the characteristics of energy conservation, low power, large flow, long conveying distance, high lift, wear resistance, corrosion resistance, difficulty in blockage, maximum particle conveying diameter of 100mm, long service life and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mine slime conveying equipment, specifically a mobile energy-saving double-cylinder double-feed suction and conveying device. Background Technology

[0002] Conveying equipment generally consists of a pump body and a conveying pipe. It is a type of machinery that uses pressure to continuously transport materials along a pipeline. As the application range of conveying pumps becomes wider and wider, coal mining also requires this device. During the coal mining process, roof collapse leads to roof water, fissure water, and a large amount of industrial water generated during production. At the same time, as coal production increases, the amount of coal powder also increases, causing a large amount of coal slurry to flow into sedimentation tanks or water sumps. This reduces the water storage space of the water sumps or sedimentation tanks, reduces disaster prevention capabilities, and in severe cases, directly endangers lives in the mine. Therefore, it is necessary to clean and transport water sumps or sedimentation tanks in a timely manner. Thus, a coal mining conveying device is needed to further improve the safety and efficiency of mine transportation. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a mobile, energy-saving, dual-cylinder, dual-feed conveying device, which solves the problem of low efficiency in coal mine slurry conveying.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a mobile energy-saving double-cylinder double-feed suction and conveying device, comprising, from bottom to top, a tracked hydraulic walking assembly, a piston booster energy-saving pump system, and an electrical assembly. The piston booster energy-saving pump system is mounted on the tracked hydraulic walking assembly, and the electrical assembly is vertically and flexibly mounted on the tracked hydraulic walking assembly. The tracked hydraulic walking assembly includes a left track and a right track arranged opposite to each other, with a front crossbeam and a rear crossbeam provided between the left track and the right track. The piston booster energy-saving pump system includes a suction pipe, The system includes a dual-cylinder, dual-feed and dual-discharge common pipe, a working cylinder for driving the suction pipe, and a hydraulic piston cylinder. Two working cylinders and two hydraulic piston cylinders are provided. Four sets of one-way ball check valves are provided at the inlet of the suction pipe, and four sets of one-way ball check valves are provided at the outlet of the suction pipe. The electrical assembly includes an electrical control system, a hydraulic power control box, a gas cut-off device, a hydraulic oil tank, a hydraulic oil cooling system, a motor, a coupling, an axially connected single pump, a double pump, a hydraulic control console, and an emergency stop switch.

[0005] As an optimization, a rotating hopper bearing device is provided in the middle of the front crossbeam.

[0006] As an optimization, four sets of lifting cylinders are provided between the electrical assembly and the tracked hydraulic walking assembly, and a pin is provided between the lifting cylinders and the electrical assembly.

[0007] As an optimization, the front end of the suction pipe is provided with a metal telescopic flexible connector.

[0008] As an optimization, the four sets of lifting cylinders are respectively located at both ends of the front crossbeam and the rear crossbeam.

[0009] As an optimization, the tracked hydraulic travel assembly also includes two hydraulic travel motors, which are respectively mounted on the left track and the right track.

[0010] The beneficial effects of this utility model are as follows: The mobile energy-saving double-cylinder double-feed suction and conveying equipment provided by this utility model consists of a crawler hydraulic walking assembly, a piston booster energy-saving pump system and an electrical assembly, forming a complete automatic control system for double-cylinder double-feed coal slurry suction and discharge. It solves the drawbacks of other types of pumps. This invention features energy saving, low power, large flow, long conveying distance, high head, wear resistance, corrosion resistance, and is not easy to clog. It can convey a maximum particle size of 100mm and has a long service life.

[0011] 1. The track hydraulic travel assembly is equipped with two high-power hydraulic motors for fast and slow speeds, which drive the two tracks to travel at fast and slow speeds, providing high torque and strong climbing ability.

[0012] 2. The motor, coupling, and axial dual pump are the core components and power source of the entire equipment. The primary pump is the main pump, providing a continuous and powerful power source for the piston booster pump; the secondary pump is the auxiliary pump, providing power for other functions of the entire equipment. Firstly, the crawler motor's speed is controlled by an electro-proportional pressure reducing valve assembly. Secondly, a flow-sharing multi-way valve assembly controls the left and right mixing rotary motors of the hopper, the lifting and lowering and rotation of the hopper, the lifting of the operating platform, and the start and stop of the emergency rescue pump.

[0013] 3. The flow rate of the piston booster energy-saving pump system can be automatically switched between large displacement and small flow rate by adjusting the pressure of the hydraulic oil pump, with an adjustment range of 0-240m³ / h. 3 / h, the pump pressure can reach a maximum of 2.5MPa.

[0014] 4. The function of the feed one-way ball check valve is twofold: First, it is a one-way feed valve, requiring only feeding and not discharging, thus acting as a check valve. Second, the check valve features a ball valve core, designed to prevent debris and large particles from entering and clogging the feed valve. This design makes the ball valve core less prone to jamming, further improving the performance of the plunger pump. It can handle particles up to 100mm in diameter, playing a crucial role in the challenging environment of coal mines.

[0015] 5. Four supporting cylinders are designed to support the electrical, hydraulic, and operating system platforms. Sufficient space is left between the upper part of the tracked hydraulic walking assembly and the four supporting cylinders to install a piston booster energy-saving pump system, thereby integrating the three major systems into one and realizing the functions of automatic lifting of the electrical assembly, coal slurry suction and discharge, and automatic walking of the overall equipment. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the main structure of the present invention connecting the aggregate mixing tank;

[0017] Among them: 1a, electrical control system; 2a, hydraulic power control box; 3a, gas power cut-off device; 4a, hydraulic oil tank; 5a, hydraulic oil cooling system; 6a, electric motor; 7, coupling; 8, axial series single pump; 9, double pump; 10, hydraulic control console; 11, emergency stop switch; 12, lifting cylinder.

[0018] Figure 2 This is a structural schematic diagram of the tracked hydraulic travel assembly;

[0019] Among them: 1-A, left track; 1-B, right track; 2-D, hydraulic travel motor; 3-E, front crossbeam; 3-F, rear crossbeam; 4, rotating hopper bearing device; 5-1, 5-2, 5-3, and 5-4 are all lifting cylinders; 6-1, 6-2, 6-3, and 6-4 are all pins.

[0020] Figure 3 This is a schematic diagram of the structure of a piston booster energy-saving pump system.

[0021] Among them: 1. Metal telescopic flexible connecting pipe, 2. Suction pipe, 3-A1, 3-A2, 3-B1, and 3-B2 are all feed one-way ball check valves, 4-A and 4-B are all working cylinders, 5-C and 5-D are all hydraulic piston cylinders, 6-A3, 6-A4, 6-B3, and 6-B4 are all discharge one-way ball check valves, and 7. Dual-cylinder dual-feed and dual-discharge common pipe. Detailed Implementation

[0022] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] For ease of description, the words "up," "down," "left," and "right" appearing in this utility model only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves, and do not limit the structure. They are merely for the purpose of facilitating the description of this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figure 1-3As shown, a mobile energy-saving dual-cylinder dual-feed suction and conveying device includes, from bottom to top, a crawler hydraulic walking assembly, a piston booster energy-saving pump system, and an electrical assembly. The piston booster energy-saving pump system is mounted on the crawler hydraulic walking assembly, and the electrical assembly is vertically mounted on the crawler hydraulic walking assembly. Four sets of lifting cylinders are provided between the electrical assembly and the crawler hydraulic walking assembly, and pins are provided between the lifting cylinders and the electrical assembly. The four sets of lifting cylinders are respectively located at both ends of the front crossbeam 3-E and the rear crossbeam 3-F. The crawler hydraulic walking assembly includes a left track 1-A and a right track 1-B arranged opposite each other. The front crossbeam 3-E and the rear crossbeam 3-F are located between the left track 1-A and the right track 1-B. The front crossbeam 3-E and the rear crossbeam 3-F are 150x150mm square steel, forming the chassis of the crawler hydraulic walking assembly. A rotating hopper bearing device 4 is provided in the middle of the front crossbeam 3-E for connecting... The system includes a material mixing tank; the piston booster energy-saving pump system includes a suction pipe 2, a dual-cylinder dual-feed and dual-discharge common pipe 7, and a working cylinder and a hydraulic piston cylinder that drive the suction pipe 2 and the dual-cylinder dual-feed and dual-discharge common pipe 7. The front end of the suction pipe 2 is provided with a metal telescopic flexible connecting pipe 1. There are two working cylinders and two hydraulic piston cylinders. The inlet of the suction pipe 2 is provided with four sets of one-way ball check valves for feeding, and the outlet of the suction pipe 2 is provided with four sets of one-way ball check valves for discharging. The electrical assembly includes an electrical control system 1a, a hydraulic power control box 2a, a gas power cut-off device 3a, a hydraulic oil tank 4a, a hydraulic oil cooling system 5a, a motor 6a, a coupling 7, an axial series single pump 8, a double pump 9, a hydraulic control operating panel 10, and an emergency stop switch 11. The track hydraulic walking assembly also includes two hydraulic walking motors 2-D, which are respectively installed on the left track 1-A and the right track 1-B. The axial tandem pump 8 is the main pump, providing a continuous and powerful power source for the piston booster pump. The dual pump 9 is the auxiliary pump, providing power for other functions of the entire equipment. Firstly, it controls the fast and slow speeds of the hydraulic walking motor 2-D through an electro-proportional pressure reducing valve group. Secondly, it uses a flow-sharing multi-way valve group to control the left and right stirring rotary motors of the hopper, the lifting, lowering, and rotation of the hopper, the lifting of the operating platform, and the start and stop of the emergency rescue pump.

[0026] The tracked hydraulic travel assembly is equipped with two high-power hydraulic motors, one for fast speed and one for slow speed, driving the left track 1-A and the right track 1-B. It provides fast and slow travel, high torque, and strong climbing ability. The lifting support cylinders (5-1, 5-2, 5-3, 5-4) are connected to the lower part of the lifting platform via pins (6-1, 6-2, 6-3, 6-4), forming a complete, multi-functional, mobile, energy-saving, dual-cylinder, dual-feed suction and conveying system integrating travel, pumping, electrical, and hydraulic control.

[0027] The hydraulic oil cooling system 5a is designed to fully utilize the cooling principle of the rear fan of the main motor to dissipate heat from the hydraulic oil, thereby saving energy, saving space, and enhancing the cooling effect of the hydraulic oil.

[0028] Working principle of piston booster energy-saving pump:

[0029] The motor and the series-connected double pump 9 are connected together by screws via a connecting sleeve. The motor shaft, the series-connected single pump shaft, and the double pump 9 shaft are connected in series by a flexible coupling 7. The hydraulic oil pump draws low-pressure oil from the hydraulic oil tank 4a, and after high-speed rotation, outputs high-pressure oil. This oil then passes through the electro-proportional valve group and the reversing valve group, and enters the front or rear chamber of the hydraulic cylinder through the high-pressure oil pipe to drive the hydraulic cylinder piston. The hydraulic cylinder piston then drives the working cylinder piston to work, creating a continuous reciprocating motion. The coal slurry is sucked and discharged through the working cylinder's inlet and outlet one-way ball check valves. The flow rate of this pumping system can be automatically switched between large displacement and small flow rate by adjusting the hydraulic oil pump pressure, with an adjustment range of 0-240 m³ / h. The maximum pump pressure can reach 2.5 MPa.

[0030] The metal telescopic flexible connecting pipe 1 is mainly used to connect the material collection hopper to the suction pipe 2 of the booster pump, thereby realizing the self-priming function of the booster pump.

[0031] The four sets of dual-cylinder, dual-feed, one-way spherical check valves (3-A1, 3-A2, 3-B1, 3-B2) have two main functions: First, they are one-way feed valves, requiring only feeding and not discharging, thus acting as a check valve. Second, the check valves feature spherical valve cores to prevent debris and large particles from entering and clogging the feed valves. This design makes the spherical valve core less prone to jamming, further improving the performance of the plunger pump. It can handle particles up to 100mm in diameter, playing a crucial role in the challenging environments of coal mines.

[0032] The working cylinders 4-A and 4-B are the material-containing working chambers of the plunger pump. All coal slurry must enter and exit through the working chambers. The working cylinders are made of stainless steel, with corrosion-resistant cylinder barrels and an inner alloy cladding. The check valves are treated with wear resistance.

[0033] The hydraulic piston cylinders 5-C and 5-D and the piston rod are treated with high-strength anti-corrosion and wear-resistant materials. The working cylinder works by moving the working hydraulic piston rod back and forth, driving the working cylinder to pump out coal slurry, thus completing the task of coal slurry intake and transportation.

[0034] The four sets of feed one-way ball check valves (3-A1, 3-A2, 3-B1, 3-B2) and the four sets of discharge one-way ball check valves (6-A3, 6-A4, 6-B3, 6-B4) function as follows: When working cylinder A is in the feeding state and working cylinder B is in the discharging state, feed one-way ball check valves 3-A1 and 3-A2 are open and feeding, while discharge one-way ball check valves 6-A3 and 6-A4 are closed. Feed one-way ball check valves 3-B1 and 3-B2 are also closed. At this time, discharge one-way ball check valves 6-B3 and 6-B4 are open and discharging. Similarly, when working cylinder 4-B is in the suction state, the feed one-way ball check valves 3-B1 and 3-B2 are open and suctioning material, while the discharge one-way ball check valves 6-B3 and 6-B4 are closed. Meanwhile, 3-A1 and 3-A2 are closed, and 6-A3 and 6-A4 are open and discharging material. This creates a cycle of feeding into working cylinder 4-A and discharging into working cylinder 4-B, which repeats continuously to complete the suction and discharge of coal slurry. Therefore, the dual-cylinder dual-feed system is highly efficient and fast, twice that of a regular mud pump.

[0035] The dual-cylinder dual-feed system is twice as fast as the dual-cylinder single-feed system. The dual-cylinder dual-feed pipe is the mud input channel connecting four sets of feed one-way ball check valves. Similarly, the dual-cylinder dual-discharge pipe is the mud output channel connecting four sets of discharge one-way ball check valves.

[0036] The device consists of three main components, which adopt a modular and optimized design. It is fully functional, simple in structure, and uses hydraulic power as a power source. It integrates line-of-sight remote control and machine operation. The entire system is hydraulically operated and can be operated by one person.

[0037] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any appropriate changes or modifications made by a person skilled in the art that conform to the claims of this utility model should fall within the patent protection scope of this utility model.

Claims

1. A mobile energy efficient twin cylinder twin feed suction device characterized by: From bottom to top, it comprises a track hydraulic walking assembly, a piston supercharged energy-saving pump system and an electrical assembly, the piston supercharged energy-saving pump system is arranged on the track hydraulic walking assembly, and the electrical assembly is arranged on the track hydraulic walking assembly in a lifting manner; the track hydraulic walking assembly comprises left and right side tracks arranged oppositely, and front and rear cross beams are arranged between the left and right side tracks; the piston supercharged energy-saving pump system comprises a suction pipe, a double-cylinder double-feed discharge shared pipe and working cylinders and hydraulic piston cylinders for driving the suction pipe and the double-cylinder double-feed discharge shared pipe, the working cylinders and the hydraulic piston cylinders are both provided with two, four groups of feed one-way spherical check valves are arranged at the feed port of the suction pipe, and four groups of discharge one-way spherical check valves are arranged at the discharge port of the suction pipe; the electrical assembly comprises an electrical control system, a hydraulic power supply control box, a gas power-off instrument, a hydraulic oil tank, a hydraulic oil cooling system, a motor, a shaft coupling, a shaft series one joint pump, a shaft series two joint pump, a hydraulic control operating table and an emergency stop switch.

2. The mobile energy efficient twin cylinder twin feed air conveyor of claim 1, wherein: The middle part of the front cross beam is provided with a rotary hopper bearing device.

3. The mobile energy efficient twin cylinder twin feed air conveyor of claim 1, wherein: Four groups of lifting oil cylinders are arranged between the electrical assembly and the track hydraulic walking assembly, and a pin shaft is arranged between the lifting oil cylinders and the electrical assembly.

4. The mobile energy efficient twin cylinder twin feed air conveyor of claim 1, wherein: The front end of the suction pipe is provided with a metal telescopic flexible connecting pipe.

5. The mobile energy efficient twin cylinder twin feed air moving apparatus of claim 3, wherein: The four groups of lifting oil cylinders are arranged at the two ends of the front and rear cross beams respectively.

6. The mobile energy efficient twin cylinder twin feed air moving apparatus of claim 1, wherein: The track hydraulic walking assembly further comprises two hydraulic walking motors, and the two hydraulic walking motors are arranged on the left and right side tracks respectively.

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