A self-propelled underground mine coal-water centrifugal separation device

Abstract

The utility model belongs to the technical field of centrifugal separators, and specifically relates to a self-propelled underground mine coal-water centrifugal separator; it comprises a walking chassis, on which a centrifugal separator is mounted; the centrifugal separator comprises a motor assembly, a rotating part assembly, a machine base assembly weldment, a frame, a hanging basket assembly, a feed pipe assembly, a shock absorber assembly, a solid phase connection bucket, a liquid phase connection bucket and an electrical controller; the frame is installed on the walking chassis, the frame supports the machine base assembly weldment through the shock absorber assembly, a rotating part assembly is arranged above the machine base assembly weldment, one side of the rotating part assembly is connected to the motor assembly through a rotating drum, and the other side is connected to the feed pipe assembly, the solid phase connection bucket and the liquid phase connection bucket are respectively connected to the solid outlet and the liquid outlet of the rotating part assembly, and the hanging basket assembly is installed on a bracket; it can effectively solve the current working demand for small water volume water treatment in underground mines; through the device, the collected sewage can be pre-filtered at each pre-placed water inlet point in the mine.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifugal separators, and in particular relates to a self-propelled underground mine coal-water centrifugal separator. Background Art

[0002] The quality of mine water varies greatly, with obvious characteristics of the coal industry. Mine water contains a lot of suspended matter such as coal particles, rocks, powder, and oil, and is generally black. Its total hardness and mineralization are not high, but due to its complex composition and the fact that mine water is a multiphase dispersed system, its clarification process is very complicated. Especially when mine water is treated and reused, the requirements for water quality are high, and conventional water treatment processes often cannot meet the requirements. Therefore, it is of great significance to clarify the characteristics and changing laws of mine water, conduct targeted analysis and treatment of mine water in each different coal mine, select appropriate treatment processes, make the effluent clear and meet the standards, and use it as qualified circulating water to achieve the construction of water-saving coal mines in my country.

[0003] The difficulty in treating mine water is mainly determined by its own characteristics, namely, large changes in particle size, high content of fine particles, large changes in concentration, many impurities (especially oils, emulsions, etc.), and high mineralization. After most of the particles are settled normally, the suspension is in a colloidal state and has some oil pollution. Most of the surfaces of the suspended particles are negatively charged, causing like charges to repel each other. Therefore, these tiny particles are always dispersed in the conventional mine water treatment system and are difficult to condense, settle, and filter.

[0004] At the same time, with the increasing number of high-mineralization and special-component mine waters in recent years, mine water treatment has brought new challenges. With the increase in mining depth, the mineralization and fluoride content in mine water have also increased significantly. At present, more than half of the mine water has a TDS (total dissolved solids) exceeding 1000 mg / l or a fluoride mass concentration exceeding 1 mg / L, resulting in the original conventional mine water treatment process being unable to meet the treatment needs, and a large amount of funds need to be invested in technical upgrades.

[0005] At present, the purification of suspended solids in mine water mainly refers to the treatment process of the water plant. The only difference is the design parameters adopted. Its main disadvantages are large project investment, large land area and long construction period. In view of the disadvantages of the current large volume of water treatment structures, it is necessary to develop a new and efficient water treatment and purification device, especially suitable for underground use, which can purify some small water volume mines and be directly used for underground production working face reuse, dust prevention, emulsion preparation and kilometer directional drilling rig drilling and other scenes. Utility Model Content

[0006] The utility model aims to provide a coal-water centrifugal separation device which can travel in underground tunnels and can pre-filter the collected sewage at various pre-water inlet points in the mine.

[0007] The utility model provides the following technical solutions: a self-propelled underground mine coal-water centrifugal separation device, comprising a walking chassis, on which a centrifugal separation device is mounted;

[0008] The centrifugal separation device includes a motor assembly, a rotating part assembly, a machine base assembly weldment, a frame, a hanging basket assembly, a feed pipe assembly, a shock absorber assembly, a solid phase connection bucket, a liquid phase connection bucket and an electrical controller;

[0009] The frame is installed on the walking chassis, and the frame supports the machine base weldment through the shock absorber assembly. A rotating part assembly is arranged above the machine base weldment. One side of the rotating part assembly is connected to the motor assembly through a rotating drum, and the other side is connected to the feed pipe assembly. The electrical controller is used to control the motor assembly. A solid phase connecting bucket and a liquid phase connecting bucket are arranged below the machine base weldment. The solid phase connecting bucket and the liquid phase connecting bucket are respectively connected to the solid outlet and liquid outlet of the rotating part assembly. The hanging basket assembly is installed on the frame, and the hanging basket assembly is arranged at the four corners of the machine base weldment.

[0010] Furthermore, the walking chassis includes a frame, a pneumatic power assembly and two walking tracks, and the walking tracks include a tugwheel, a tensioning wheel, a driving wheel, a track chain and a supporting roller; the tensioning wheel and the driving wheel are located at the front and rear sides of the frame, the tugwheel and the supporting roller are located between the tensioning wheel and the driving wheel, the tugwheel and the supporting roller are connected to the frame, the tugwheel is on the top and the supporting roller is on the bottom; the track chain is mounted on the driving wheel, tugwheel, tensioning wheel and supporting roller; the pneumatic power assembly is connected to an external air source for driving the driving wheel; the frame is connected to the frame by bolts.

[0011] Furthermore, the pneumatic power assembly includes a pneumatic motor, a hydraulic pump, a hydraulic travel motor and a hydraulic oil circuit. The pneumatic motor is connected to an external air source through a hose, the pneumatic motor drives the hydraulic pump, the hydraulic pump drives the hydraulic travel motor through the hydraulic oil circuit, and the hydraulic travel motor drives the drive wheel to rotate.

[0012] Furthermore, the supporting wheels are connected to the frame through a buffer mechanism, which includes a first buffer rod and a second buffer rod. The two supporting wheels are connected as a group through a swing arm. The upper ends of the first buffer rod and the second buffer rod are hinged to the frame, and the lower ends are hinged to the same hinge point on the swing arm.

[0013] Furthermore, the hinge point on the swing arm is offset toward one supporting wheel, the first buffer rod is located on one side of the hinge point, and the second buffer rod is located on the other side of the hinge point. Taking the vertical line passing through the hinge point as a reference, the angle between the first buffer rod and the vertical line is smaller than the angle between the second buffer rod and the vertical line; the walking track includes two supporting wheel groups, and the buffer mechanisms of the two supporting wheel groups are in opposite directions.

[0014] Furthermore, a drum shield is arranged outside the rotating part assembly, and the drum shield is connected to the machine base assembly welding part.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The utility model provides a self-propelled underground mine coal-water centrifugal separation device, which can effectively solve the current work demand for small water volume water treatment in the mine; the walking chassis uses compressed air as the walking energy, and can be manually operated to walk in the underground tunnel. Through the device, the collected sewage can be pre-filtered at each pre-water entry point in the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view of a centrifugal separation device;

[0018] Figure 2 is a side view of a centrifugal separation device;

[0019] Figure 3 Schematic diagram of the walking chassis.

[0020] In the figure: 1-frame; 2-motor assembly; 3-track chain; 4-rotating part assembly; 5-drum shield; 6-machine base assembly weldment; 7-frame; 8-basket assembly; 9-feed pipe assembly; 10-shock absorber assembly; 11-solid phase connecting bucket; 12-liquid phase connecting bucket; 13-electrical controller; 14-tugboat; 15-tensioning wheel; 16-supporting wheel; 17-driving wheel; 18-second buffer rod; 19-first buffer rod; 20-swing arm. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] like Figure 1 , Figure 2 As shown: a self-propelled underground mine coal-water centrifugal separation device, including a walking chassis, and a centrifugal separation device is mounted on the walking chassis;

[0023] The centrifugal separation device includes a motor assembly 2, a rotating part assembly 4, a machine base assembly weldment 6, a frame 7, a hanging basket assembly 8, a feed pipe assembly 9, a shock absorber assembly 10, a solid phase receiving bucket 11, a liquid phase receiving bucket 12 and an electrical controller 13;

[0024] The frame 7 is installed on the walking chassis, and the frame 7 supports the machine base assembly 6 through the shock absorber assembly 10. A rotating part assembly 4 is arranged above the machine base assembly 6. One side of the rotating part assembly 4 is connected to the motor assembly 2 through a rotating drum, and the other side is connected to the feed pipe assembly 9. The electrical controller 13 is used to control the motor assembly 2. A solid phase connecting bucket 11 and a liquid phase connecting bucket 12 are arranged below the machine base assembly 6. The solid phase connecting bucket 11 and the liquid phase connecting bucket 12 are respectively connected to the solid outlet and the liquid outlet of the rotating part assembly 4. The hanging basket assembly 8 is installed on the bracket 7. The hanging basket assembly 8 is arranged at the four corners of the machine base assembly 6. The centrifugal separation device can be lifted by the hanging basket assembly 8.

[0025] A shock absorber assembly 10 is arranged between the frame 7 and the base assembly weldment 6 to reduce the vibration transmitted to the traveling chassis when the rotating part assembly 4 is working.

[0026] The motor assembly 2 serves as the power source of the rotating component assembly 4. The material enters the rotating component assembly 4 from the feed pipe assembly 9. The centrifugal force generated by the rotating component assembly 4 is combined with the separation filter to separate the liquid and solid in the mixed material, and the materials are discharged from their respective solid phase receiving buckets 11 and liquid phase receiving buckets 12, thereby achieving the effect of solid-liquid separation and grading.

[0027] A drum shield 5 is disposed outside the rotating component assembly 4 . The drum shield 5 is connected to a machine base assembly weldment 6 . The drum shield 5 serves as a safety protection when the rotating component assembly 4 is working.

[0028] like Figure 3 As shown: the walking chassis includes a frame 1, a pneumatic power assembly and two walking tracks, and the walking tracks include a tugwheel 14, a tensioning wheel 15, a driving wheel 17, a track chain 3 and a supporting roller 16; the tensioning wheel 15 and the driving wheel 17 are located at the front and rear sides of the frame 1, the tugwheel 14 and the supporting roller 16 are located between the tensioning wheel 15 and the driving wheel 17, the tugwheel 14 and the supporting roller 16 are connected to the frame 1, the tugwheel 14 is on the top and the supporting roller 16 is on the bottom; the track chain 3 is mounted on the driving wheel 17, the tugwheel 14, the tensioning wheel 15 and the supporting roller 16; the pneumatic power assembly is connected to an external air source for driving the driving wheel 17; the frame 7 is connected to the frame 1 by bolts.

[0029] The supporting wheel 14 holds up the crawler chain 3 to reduce the vibration of the crawler chain 3 when the traveling chassis is moving; the tensioning wheel 15 on the front side of the frame 1 keeps the crawler chain 3 in a tense state to prevent the crawler chain 3 from being too loose. When the traveling chassis is moving, the pneumatic power assembly transmits power to the driving wheel 17, so that the driving wheel 17 obtains the driving torque. Under the action of the driving torque, the meshing transmission between the gear teeth of the driving wheel 17 and the track plate joint pin of the crawler chain 3 drives the crawler chain 3 to rotate.

[0030] The pneumatic power assembly includes a pneumatic motor, a hydraulic pump, a hydraulic travel motor and a hydraulic oil circuit. The pneumatic motor is connected to an external air source through a hose. The pneumatic motor drives the hydraulic pump. The hydraulic pump drives the hydraulic travel motor through the hydraulic oil circuit. The hydraulic travel motor drives the drive wheel 17 to rotate.

[0031] The supporting wheels 16 are connected to the frame 1 through a buffer mechanism, which includes a first buffer rod 19 and a second buffer rod 18. Two supporting wheels 16 are connected as a group through a swing arm 20. The upper ends of the first buffer rod 19 and the second buffer rod 18 are hinged to the frame 1, and the lower ends are hinged to the same hinge point on the swing arm 20. When the tunnel floor rises and falls, the swing arm 20 can swing with the hinge point as the fulcrum, and the swing arm 20 as a whole can also jump up and down with the first buffer rod 19 and the second buffer rod 18.

[0032] The hinge point on the swing arm 20 is offset toward one of the supporting wheels 16, the first buffer rod 19 is located on one side of the hinge point, and the second buffer rod 18 is located on the other side of the hinge point. Taking the vertical line passing through the hinge point as a reference, the angle between the first buffer rod 19 and the vertical line is smaller than the angle between the second buffer rod 18 and the vertical line; the walking track includes two supporting wheel groups, and the buffer mechanisms of the two supporting wheel groups are in opposite directions.

[0033] A first working mode of a self-propelled underground mine coal-water centrifugal separation device:

[0034] The self-propelled underground mine coal-water centrifugal separation device is placed near the mine's kilometer-long drilling rig operating point to collect and process coal slime water for reuse, and is moved with the drilling rig after drilling is completed.

[0035] The front end of the system uses a coal-water screening and collection integrated machine installed near the operating point of the kilometer-meter drilling rig, the middle end uses a self-propelled underground mine coal-water centrifugal separation device, and the end uses a precision filter to improve the water quality of the separated coal slime water to meet the water demand of the high-precision motor of the kilometer-meter drilling rig when working. All devices are connected in series through high-pressure hoses.

[0036] All devices use PLC control programs to automatically control their workflows, and the displayed data includes operating logic, flow, pressure, delayed pneumatics, faults and other similar data. The PLC system display simulates the front operation panel of the separation system on the screen, allowing operators to monitor and set the equipment in the control room.

[0037] The drilling and discharging of the kilometer-long directional drilling rig first uses the drilling rig's gas-liquid separator (collector) to separate the gas phase and coal slime water. The separated coal slime water is processed by a screening and collection integrated machine to achieve coarse separation and buffering of solids and liquids. Next, the coal slime water treated by the collection integrated machine is pumped to a self-propelled underground mine coal-water centrifugal separation device for secondary solid-liquid separation, thereby basically achieving coal recovery. Finally, the liquid after the secondary solid-liquid separation is treated by a clean water precision filtration unit, and the treated clean water is supplied to the drilling rig for reuse through a high-pressure pump. The coal slime separated from the solid and liquid is put into a collection bag or directly transported to the coal bunker by a belt.

[0038] The second working mode of a self-propelled underground mine coal-water centrifugal separation device:

[0039] The self-propelled underground mine coal-water centrifugal separation device is fixedly placed in the pan area water tank, and the clean water is directly injected into the static pressure water pipe nearby.

[0040] A coal-water screening and collection integrated machine is installed near the water inlet of the pan area water tank. A self-propelled underground mine coal-water centrifugal separation device is used in the middle to improve the water quality of the coal sludge water collected in the mine drainage pipeline. All devices are connected in series through high-pressure rubber hoses.

[0041] The coal slurry water is processed by the screening and collection machine to achieve the rough separation and buffering of solid and liquid. In the next step, the coal slurry water treated by the collection machine is pumped to the self-propelled underground mine coal-water centrifugal separation device for secondary solid-liquid separation, so that coal recovery is basically achieved. The treated clean water is injected into the mine static pressure water pipe through a high-pressure pump. The coal slurry separated from the solid and liquid is put into a collection bag or directly transported to the coal bunker by a belt.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-propelled underground mine coal-water centrifugal separation device, characterized in that: It includes a walking chassis, on which a centrifugal separation device is mounted; The centrifugal separation device comprises a motor assembly (2), a rotating part assembly (4), a machine base assembly weldment (6), a frame (7), a hanging basket assembly (8), a feed pipe assembly (9), a shock absorber assembly (10), a solid phase connection bucket (11), a liquid phase connection bucket (12) and an electrical controller (13); A frame (7) is mounted on a walking chassis. The frame (7) supports a machine base assembly (6) through a shock absorber assembly (10). A rotating component assembly (4) is arranged above the machine base assembly (6). One side of the rotating component assembly (4) is connected to a motor assembly (2) through a rotating drum, and the other side is connected to a feed pipe assembly (9). An electrical controller (13) is used to control the motor assembly (2). A solid phase connection bucket (11) and a liquid phase connection bucket (12) are arranged below the machine base assembly (6). The solid phase connection bucket (11) and the liquid phase connection bucket (12) are respectively connected to a solid outlet and a liquid outlet of the rotating component assembly (4). A hanging basket assembly (8) is mounted on the frame (7). The hanging basket assembly (8) is arranged at four corners of the machine base assembly (6).

2. A self-propelled underground mine coal-water centrifugal separation device according to claim 1, characterized in that: The walking chassis comprises a vehicle frame (1), a pneumatic power assembly and two walking tracks, wherein the walking tracks comprise a tug wheel (14), a tension wheel (15), a driving wheel (17), a track chain (3) and a supporting roller (16); the tension wheel (15) and the driving wheel (17) are located at the front and rear sides of the vehicle frame (1), the tug wheel (14) and the supporting roller (16) are located between the tension wheel (15) and the driving wheel (17), the tug wheel (14) and the supporting roller (16) are connected to the vehicle frame (1), the tug wheel (14) is at the top and the supporting roller (16) is at the bottom; the track chain (3) is sleeved on the driving wheel (17), the tug wheel (14), the tension wheel (15) and the supporting roller (16); the pneumatic power assembly is connected to an external air source for driving the driving wheel (17); the frame (7) and the vehicle frame (1) are connected by bolts.

3. A self-propelled underground mine coal-water centrifugal separation device according to claim 2, characterized in that: The pneumatic power assembly comprises a pneumatic motor, a hydraulic pump, a hydraulic travel motor and a hydraulic oil circuit. The pneumatic motor is connected to an external air source via a hose. The pneumatic motor drives the hydraulic pump. The hydraulic pump drives the hydraulic travel motor via the hydraulic oil circuit. The hydraulic travel motor drives the driving wheel (17) to rotate.

4. A self-propelled underground mine coal-water centrifugal separation device according to claim 2 or 3, characterized in that: The supporting wheels (16) are connected to the frame (1) via a buffer mechanism, the buffer mechanism comprising a first buffer rod (19) and a second buffer rod (18), two supporting wheels (16) are connected as a group via a swing arm (20), the upper ends of the first buffer rod (19) and the second buffer rod (18) are hinged to the frame (1), and the lower ends are hinged to the same hinge point on the swing arm (20).

5. A self-propelled underground mine coal-water centrifugal separation device according to claim 4, characterized in that: The hinge point on the swing arm (20) is offset toward a supporting wheel (16), the first buffer rod (19) is located on one side of the hinge point, and the second buffer rod (18) is located on the other side of the hinge point. With a vertical line passing through the hinge point as a reference, the angle between the first buffer rod (19) and the vertical line is smaller than the angle between the second buffer rod (18) and the vertical line; the walking track includes two supporting wheel groups, and the buffer mechanisms of the two supporting wheel groups are in opposite directions.

6. A self-propelled underground mine coal-water centrifugal separation device according to claim 1, characterized in that: A drum shield (5) is arranged outside the rotating component assembly (4), and the drum shield (5) is connected to a machine base assembly weldment (6).

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