Efficient coal mining equipment

Abstract

The utility model discloses efficient coal mining equipment, which belongs to the technical field of mining equipment and comprises a conveying frame and a conveying belt, the outer surface of the conveying belt is wound on the conveying frame, the conveying frame is rotatably connected with a driving roller and a steering roller corresponding to the interior of the conveying belt, and a plurality of groups of partition plates are fixed on the outer surface of the conveying belt at intervals. A carding mechanism is arranged on the outer surface of the conveying frame, a watering structure is arranged at the position, close to the carding mechanism, of the conveying frame, the carding mechanism comprises a fixing plate fixed to the outer side of the conveying frame, the upper end of the fixing plate is movably sleeved with a movable shell, a spring is arranged on the inner side of the movable shell, and a rotating roller is rotationally connected to the inner side of the movable shell; carding plates are fixedly connected to the middles of the rotating rollers.

Description

Technical Field

[0001] This utility model relates to a mining equipment, and more particularly to a high-efficiency coal mining equipment, belonging to the technical field of mining equipment. Background Technology

[0002] Traditional conveying equipment lacks an effective coal sorting mechanism. When the coal particles are uneven in size or the conveying angle is large, the coal particles tend to accumulate or roll off the conveyor belt, especially in inclined conveying scenarios where the roll-off rate can reach over 15%. For example, some equipment relies solely on the friction of the conveyor belt itself to constrain the coal particles, lacking an active sorting device, resulting in uneven distribution of coal particles during conveying and affecting subsequent processing efficiency.

[0003] Existing dust suppression systems mostly use fixed spray systems, which cannot be dynamically adjusted according to ambient temperature or coal transport conditions. For example, when underground temperatures can reach above 35°C in summer, traditional spray systems can only achieve basic dust suppression and cannot meet the coal cooling requirements. Furthermore, fixed spray heads are easily clogged by coal dust, resulting in high maintenance costs. In addition, some equipment does not integrate an independent water supply system and relies on external water sources, limiting its applicability in complex terrains.

[0004] Traditional conveying equipment typically employs a rigid, fixed support structure, which cannot withstand the impact force of coal lumps. For example, when the coal lumps are large (e.g., exceeding 100mm), rigid supports can easily lead to increased equipment vibration, affecting the lifespan of components. Furthermore, fixed sprinkler systems require continuous operation of water pumps, resulting in water waste and redundant energy consumption in non-high-temperature environments. Utility Model Content

[0005] The main purpose of this utility model is to provide a high-efficiency coal mining equipment.

[0006] The objective of this utility model can be achieved by adopting the following technical solution:

[0007] A high-efficiency coal mining equipment includes a conveyor frame and a conveyor belt. The outer surface of the conveyor belt is wound around the conveyor frame. The conveyor frame is rotatably connected to the inside of the conveyor belt with a drive roller and a steering roller. Several sets of isolation plates are fixed at intervals on the outer surface of the conveyor belt. A combing mechanism is provided on the outer surface of the conveyor frame. A water spraying structure is provided on the conveyor frame near the combing mechanism.

[0008] The combing mechanism includes a fixed plate fixed to the outside of the conveyor frame, a movable outer shell movably sleeved on the upper end of the fixed plate, a spring provided inside the movable outer shell, a rotating roller rotatably connected inside the movable outer shell, and a combing plate fixedly connected in the middle of the rotating roller.

[0009] Preferably, the water spraying structure includes a water tank fixed to the lower end of the conveyor frame, a water outlet pipe connected to the outer surface of the water tank, an elastic pipe connected to the upper end of the water outlet pipe, a T-shaped pipe connected to the upper end of the elastic pipe, and a spray head movably connected to the outer surface of the T-shaped pipe.

[0010] The lower end of the T-shaped tube is connected to a movable frame, a positioning frame is set between the movable frame and the fixed plate, a top-moving frame is fixedly connected to the outer surface of the rotating roller, and a passive frame is connected to the lower end of the T-shaped tube at the position corresponding to the top-moving frame.

[0011] One end of the outlet pipe passes through the water tank and is connected to the water pump, while the inlet pipe is connected to the outer surface of the water tank.

[0012] Preferably, the fixed plate and the movable shell are in two sets and symmetrically distributed. The movable shell slides up and down along the fixed plate, and the springs between each set of movable shells and the fixed plate are arranged in a straight line array.

[0013] Preferably, the two ends of the spring are fixedly connected to the movable outer shell and the fixed plate respectively, the two ends of the rotating roller are rotatably connected to the two sets of movable outer shells through bearings, and the combing plate is set in the middle of the rotating roller.

[0014] Preferably, the lowest end of the carding plate, which rotates around the rotating roller, is higher than the outer surface of the conveyor belt and lower than the upper end of the separator plate. The outer surface of the carding plate has a comb-like structure with equal spacing between the comb teeth.

[0015] Preferably, the carding plates are arranged in a ring array around the rotating roller, and the length of both ends of the carding plates is less than the conveying width of the conveyor belt.

[0016] Preferably, the lower end of the water outlet pipe is connected to the output end of the water pump, and the elastic tube is a spiral elastic flexible tube.

[0017] Preferably, the T-shaped tube is a T-shaped tubular structure, with each group of T-shaped tubes corresponding to several groups of spray heads distributed at intervals.

[0018] Preferably, the movable frame is a regular square prism structure, and the movable frame is slidably disposed inside the positioning frame, and the positioning frame is fixedly connected to the fixed plate.

[0019] Preferably, the jacking frame is a cylindrical structure with several arc-shaped columnar bodies on its outer surface, and the lower end of the passive frame is an arc structure. When the jacking frame rotates, it pushes the passive frame to move up and down.

[0020] The beneficial technical effects of this utility model are as follows:

[0021] This utility model provides a high-efficiency coal mine mining equipment.

[0022] By combining the elastic carding plate and springs, when coal lumps (average particle size 100mm) impact the carding plate at a linear velocity of 1.5m / s, the spring compression is 5-10mm, generating an elastic reaction force of 100-200N, forcing the coal lumps to maintain a uniform distribution. Actual measurement data shows that the coal lumps rolling off the plate decreased from 15% before implementation to below 5%, effectively preventing conveying blockages caused by coal accumulation, especially in inclined conveying scenarios.

[0023] The combing plate is made of polyurethane, with a comb tooth height of 25mm and a tooth spacing of 30mm. It is arranged in an 8-group ring array, which can apply a uniform combing force to the coal block, so that the coal block forms a stable layered distribution on the conveyor belt, improving the adaptability of subsequent processing equipment.

[0024] Fixed partition plates (150mm high, 500mm spacing) on ​​the outer surface of the conveyor belt divide coal blocks into independent units. Combined with the rotating combing plates, this forms a "separation-combing-stabilization" conveyor chain. Experimental data shows that this design ensures that the lateral offset of coal blocks on the conveyor belt is ≤20mm, significantly improving conveying accuracy.

[0025] When the top-moving frame rotates with the rotating roller, it pushes the passive frame up and down through the fan-shaped cam structure (radius 30mm, convex angle 120°), so that the T-shaped tube drives the spray head to reciprocate within a height range of 300-500mm. The spray coverage width is ≥800mm. Compared with the traditional fixed spray, the coverage area is increased by 1.5 times, which can effectively cover the conveying area of ​​coal blocks of different particle sizes.

[0026] The flexible tube is made of stainless steel corrugated pipe (20mm inner diameter, stretchable up to 1200mm). It keeps the water flow unobstructed when the T-shaped tube moves up and down, avoiding water pipe breakage caused by mechanical movement, and extending the service life to more than 12 months.

[0027] The water pump's frequency is adjusted via a frequency converter (FR-D700): it operates at 25Hz in non-high-temperature environments (≤30℃) with a flow rate of 6.25m³ / h. 3 / h, meeting dust suppression requirements; operates at 50Hz with a flow rate of 12.5m³ / h in high-temperature environments (>30℃). 3 The system achieves coal cooling (with a cooling range of 12-15℃) per hour. Compared with traditional spray systems that operate continuously at full load, it improves energy efficiency by 40%, and the coal temperature can be controlled below 25℃ during underground operations in summer, avoiding the risk of spontaneous combustion.

[0028] The fixed plate is made of Q235 carbon steel (5mm thick) and welded to the conveyor frame. The movable shell slides with the fixed plate through a guide post with a diameter of 18mm. The sliding stroke is 0-30mm, which can effectively buffer the impact force generated by the coal block (when the measured impact force is ≤3N, the structural displacement is ≤15°). Compared with traditional rigid support, the service life of the components is doubled (from 6 months to 12 months).

[0029] The spring is made of 65Mn spring steel (8mm in diameter, 20N / mm elastic modulus). It maintains elastic stability and does not undergo plastic deformation even in frequent compression-reset cycles (2000 times per day), ensuring the long-term reliable operation of the combing mechanism.

[0030] The equipment integrates a 50L PE water tank, supporting independent water supply and meeting the needs of 8 hours of continuous operation without the need for an external water source. It is suitable for scenarios where there is no fixed water supply point underground. At the same time, the dynamic adjustment function of the sprinkler structure can adapt to the dust suppression and cooling needs of complex terrains such as mountains and slopes, improving the adaptability of field operations by 30% compared to traditional equipment. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a preferred embodiment of a high-efficiency coal mine mining equipment according to the present invention;

[0032] Figure 2 This is a partial structural diagram of the combing mechanism according to a preferred embodiment of a high-efficiency coal mining equipment of the present invention.

[0033] Figure 3 This is a partial structural diagram of the water spraying structure in a preferred embodiment of a high-efficiency coal mine mining equipment according to the present invention;

[0034] Figure 4 This is a preferred embodiment of a high-efficiency coal mining equipment according to the present invention. Figure 3 A schematic diagram of the local structure from another perspective;

[0035] Figure 5 This is a preferred embodiment of a high-efficiency coal mining equipment according to the present invention. Figure 4 Enlarged view of A in the middle;

[0036] Figure 6 This is a partial structural diagram of a water tank cut open from another perspective, according to a preferred embodiment of a high-efficiency coal mine mining equipment of the present invention.

[0037] In the diagram: 1. Conveyor frame;

[0038] 2. Conveyor belt;

[0039] 3. Isolation plate;

[0040] 4. Carding mechanism; 41. Fixed plate; 42. Movable outer shell; 43. Spring; 44. Rotating roller; 45. Carding plate;

[0041] 5. Sprinkler structure; 51. Water tank; 52. Water outlet pipe; 53. Flexible pipe; 54. T-shaped pipe; 55. Sprinkler head; 56. Positioning frame; 57. Movable frame; 58. Pushing frame; 59. Passive frame; 510. Water pump; 511. Water inlet pipe. Detailed Implementation

[0042] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0043] Example 1;

[0044] like Figures 1-2 As shown, this embodiment proposes a high-efficiency coal mining equipment, including a conveyor frame 1, a conveyor belt 2 with the outer surface of the conveyor belt 2 wound around it, a number of rotating rollers for driving and rotating rollers for steering connected to the outer surface of the conveyor frame 1 corresponding to the inner surface of the conveyor belt 2, a number of sets of isolation plates 3 fixed at intervals on the outer surface of the conveyor belt 2, a combing mechanism 4 provided on the outer surface of the conveyor frame 1, and a water spraying structure 5 provided on the outer surface of the conveyor frame 1 near the combing mechanism 4.

[0045] The combing mechanism 4 includes a fixed plate 41 fixedly connected to the outside of the conveyor frame 1. A movable outer shell 42 is movably sleeved on the upper end of the fixed plate 41. A spring 43 is provided on the inner side of the movable outer shell 42. A rotating roller 44 is rotatably connected to the inner outer surface of the movable outer shell 42. A combing plate 45 is fixedly connected to the middle of the rotating roller 44. There are two sets of fixed plates 41 and movable outer shells 42, which are symmetrically distributed. The movable outer shell 42 slides up and down along the fixed plate 41. There are several sets of springs 43 between each set of movable outer shells 42 and the fixed plate 41, which are distributed in a "I"-shaped array.

[0046] The upper and lower elastic ends of the spring 43 are fixedly connected to the movable housing 42 and the fixed plate 41, respectively. Both ends of the rotating roller 44 are rotatably connected to the two sets of movable housings 42 through bearings. The combing plate 45 is located in the middle of the rotating roller 44. The lowest end of the combing plate 45 rotating around the rotating roller 44 is higher than the outer surface of the conveyor belt 2 and lower than the upper end of the isolation plate 3. The outer surface of the combing plate 45 is a comb-like structure with openings, and the spacing between the comb teeth is equal. There are several sets of combing plates 45, which are arranged in a ring array around the rotating roller 44. The combing of coal is achieved by the combing plates 45. The length of both ends of the combing plate 45 is less than the conveying width of the conveyor belt 2.

[0047] In this embodiment, the coal mine and the isolation plate 3 can be used to push and move the combing plate 45, so that the combing plate 45 rotates around the rotating roller 44. With the power of the conveyor belt 2 itself, the coal mine transported above the conveyor belt 2 can be combed, so that the transported coal mine can roll and flow to a suitable state, which is easy to generate rolling during the transport process, especially in oblique transport.

[0048] During use, the coal blocks are conveyed by the conveyor belt 2. When the coal blocks are conveyed to the combing mechanism 4 area, the coal blocks or the isolation plate 3 will push the combing plate 45, forcing the combing plate 45 to rotate. This causes the combing plate 45 to interact with the coal blocks, thereby combing the conveyed coal blocks. This makes the conveyed coal blocks more stable and less likely to roll off. At the same time, the coal blocks can lift the combing plate 45 up a bit. During the lifting process, the spring 43 can be stretched. Under the reaction force of the spring 43, the combing plate 45 can gently squeeze the coal blocks downward, thereby improving the combing effect.

[0049] The fixing plate 41 is made of Q235 carbon steel with a thickness of 5mm. It is welded and fixed to the conveyor frame 1 along its length and has a width of 120mm to ensure lateral support strength.

[0050] The movable outer shell 42 is made of aluminum alloy, with a 20mm diameter guide hole on its inner wall, which slides in conjunction with the guide post (18mm diameter) on the outer side of the fixed plate 41, with a sliding stroke range of 0-30mm.

[0051] Spring 43 is a cylindrical helical compression spring made of 65Mn spring steel, with a diameter of 8mm, a free length of 100mm, and an elastic coefficient of k = 20N / mm. Both ends are fixed to the movable outer shell 42 and the fixed plate 41 by M6 bolts.

[0052] The rotating roller 44 has a diameter of 50mm and a length of 150mm. Both ends are connected to the movable housing 42 via deep groove ball bearings (model 6205). The rotation speed range is 0-20r / min (determined by the linear speed of the conveyor belt 2).

[0053] The combing plate 45 is made of polyurethane, with a comb tooth height of 25mm, a tooth spacing of 30mm, a tooth tip angle of 60°, and 8 sets of annular arrays to ensure uniform combing force on the coal blocks.

[0054] When the linear speed of conveyor belt 2 is 1.5 m / s, the impact force generated when the coal block (average particle size 100 mm) hits the carding plate 45 is F = mv / t ≈ 3 N (m is the mass of the coal block, t is the action time 0.1 s). This pushes the carding plate 45 to rotate by an angle θ ≤ 15°. At this time, the compression of spring 43 is Δx = 5-10 mm, and the elastic force F_spring = k·Δx = 100-200 N, ensuring that the reaction force of the carding plate 45 on the coal block is stable and preventing coal block splashing.

[0055] Example 2;

[0056] like Figures 3-6 As shown, based on embodiment 1, a water spraying structure 5 is also proposed, including a water tank 51 fixedly installed at the lower end of the conveyor frame 1. A water outlet pipe 52 is fixedly connected to the outer surface of the water tank 51. An elastic pipe 53 is fixedly connected to the upper end of the water outlet pipe 52. A T-shaped pipe 54 is fixedly connected to the upper end of the elastic pipe 53. A spray head 55 is movably connected to the outer surface of the T-shaped pipe 54. A movable frame 57 is fixedly connected to the lower end of the T-shaped pipe 54. A positioning frame 56 is provided between the movable frame 57 and the fixed plate 41. A top-moving frame 58 is fixedly connected to the outer surface of the rotating roller 44. A passive frame 59 is fixedly connected to the lower outer surface of the T-shaped pipe 54 at the position corresponding to the top-moving frame 58. One end of the water outlet pipe 52 penetrates the outer surface of the water tank 51 to its interior, and a water pump 510 is fixedly connected to this end. A water inlet pipe 511 is fixedly connected to the outer surface of the water tank 51.

[0057] The lower end of the water outlet pipe 52 is fixedly connected to the output end of the water pump 510, and the water pump 510 supplies water to the inside of the water outlet pipe 52. The elastic pipe 53 is a spiral and elastic flexible hose structure. The T-shaped pipe 54 is a "T"-shaped tubular structure. A group of T-shaped pipes 54 corresponds to several groups of spray heads 55, which are distributed at intervals. The water flow sprayed by the spray heads 55 cools the coal. The movable frame 57 is a regular square prism structure. The movable frame 57 is slidably set inside the positioning frame 56, and the sliding direction is the length direction of the positioning frame 56. The positioning frame 56 is fixedly connected to the fixed plate 41. The jacking frame 58 is a cylindrical structure, and the outer surface of the cylindrical structure has several outwardly protruding arc-shaped columnar bodies. The lower end of the passive frame 59 is an arc-shaped structure. The passive frame 59 moves up and down by rotating the jacking frame 58. The positioning frame 56 and the movable frame 57 maintain the stability of the up and down movement of the T-shaped pipe 54.

[0058] In this embodiment, water can be sprayed to cool the area of ​​the combing mechanism 4 from different heights during the operation of the combing mechanism 4. This is extremely effective in hot environments such as summer and can effectively reduce coal dust generated during the operation of the combing mechanism 4.

[0059] During the operation of the combing mechanism 4, water is injected into the water tank 51 through the inlet pipe 511. The water pump 510 fills the outlet pipe 52 with water, which is then supplied to the elastic tube 53 and the T-shaped tube 54. Finally, the spray head 55 sprays water onto the coal blocks in the combing mechanism 4's working area. As the rotating roller 44 rotates, the jacking frame 58 rotates accordingly. The jacking frame 58 pushes the passive frame 59 to move the T-shaped tube 54 up and down. The positioning frame 56 and the movable frame 57 maintain the stability of the T-shaped tube 54's up and down movement. The elastic tube 53 has tensile properties, which can meet the requirements of water spraying during up and down movement. It has the best cooling effect when used in hot summer.

[0060] In summary, during use, the coal blocks are conveyed by the conveyor belt 2. When the coal blocks are conveyed to the combing mechanism 4 area, the coal blocks or the isolation plate 3 will push the combing plate 45, forcing the combing plate 45 to rotate. This causes the combing plate 45 to interact with the coal blocks, thereby combing the conveyed coal blocks. This makes the conveyed coal blocks more stable and less likely to roll off. At the same time, the coal blocks can lift the combing plate 45 up a bit. During the lifting process, the spring 43 can be stretched. Under the reaction force of the spring 43, the combing plate 45 can gently squeeze the coal blocks downward, thus improving the combing effect.

[0061] During the operation of the combing mechanism 4, water is injected into the water tank 51 through the inlet pipe 511. The water pump 510 fills the outlet pipe 52 with water, which is then supplied to the elastic tube 53 and the T-shaped tube 54. Finally, the spray head 55 sprays water onto the coal blocks in the combing mechanism 4's working area. As the rotating roller 44 rotates, the jacking frame 58 rotates accordingly. The jacking frame 58 pushes the passive frame 59 to move the T-shaped tube 54 up and down. The positioning frame 56 and the movable frame 57 maintain the stability of the T-shaped tube 54's up and down movement. The elastic tube 53 has tensile properties, which can meet the requirements of water spraying during up and down movement. It has the best cooling effect when used in hot summer.

[0062] It should be noted that during use, the water pump 510 can be a variable frequency water pump 510. Depending on the frequency, it can meet the dust reduction requirements of the combing mechanism 4 in non-high temperature environments, and also meet the cooling requirements of the combing mechanism 4 and the conveyed coal blocks in high temperature environments.

[0063] Water tank and pump: Water tank 51 has a capacity of 50L and is made of PE material. A 50mm diameter inlet pipe 511 (equipped with a DN50 ball valve) is installed on the side wall. A water pump 510 (model ISG50-125, power 0.75kW, flow rate 12.5m³ / h) is installed at the bottom. 3 / h, head 20m), fixed to the bottom crossbeam of conveyor frame 1 with M10 bolts.

[0064] The elastic tube 53 is a stainless steel corrugated tube with an inner diameter of 20mm, a free length of 800mm, and can be stretched to 1200mm. It can withstand a pressure of 0.6MPa.

[0065] T-shaped pipe 54 uses DN20 galvanized steel pipe, with a horizontal length of 600mm and a vertical height of 300mm. Spray head 55 is model ZSTZ-15, with a flow rate of 60L / h, a spray angle of 90°, an array spacing of 150mm, and a total of 4 sets.

[0066] The jacking frame 58 is fixed in the middle of the rotating roller 44 and adopts a fan-shaped cam structure with a cam radius of 30mm and a convex angle of 120°. When the rotating roller 44 rotates, it pushes the driven frame 59 (arc-shaped steel plate, 3mm thick) to move up and down, with a stroke of 10-50mm.

[0067] When the rotating roller 44 rotates at a speed of n = 15 r / min, the driven frame 59 drives the T-shaped tube 54 to complete one up-and-down reciprocating motion for each rotation of the top moving frame 58. The motion cycle is T = 4s. The water spray height can be adjusted from 300-500mm from the surface of the conveyor belt 2 to ensure that the spray coverage width is ≥ 800mm.

[0068] The frequency of water pump 510 is adjusted via a frequency converter (model FR-D700):

[0069] Non-high temperature environment (≤30℃): Frequency 25Hz, Flow rate 6.25m³ / h 3 / h, meeting dust suppression requirements;

[0070] High-temperature environment (>30℃): Frequency 50Hz, Flow rate 12.5m³ / h 3 / h, to achieve the cooling function.

[0071] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

Claims

1. A high-efficiency coal mining equipment, comprising a conveyor frame (1) and a conveyor belt (2), wherein the outer surface of the conveyor belt (2) is wound around the conveyor frame (1), and the conveyor frame (1) is rotatably connected to a drive roller and a steering roller corresponding to the inside of the conveyor belt (2), characterized in that: The outer surface of the conveyor belt (2) is fixed with several sets of isolation plates (3) at intervals, the outer surface of the conveyor frame (1) is provided with a combing mechanism (4), and the conveyor frame (1) is provided with a water spraying structure (5) near the combing mechanism (4); The combing mechanism (4) includes a fixed plate (41) fixed to the outside of the conveyor frame (1), a movable outer shell (42) is movably sleeved on the upper end of the fixed plate (41), a spring (43) is provided on the inner side of the movable outer shell (42), a rotating roller (44) is rotatably connected to the inner side of the movable outer shell (42), and a combing plate (45) is fixedly connected to the middle of the rotating roller (44).

2. The efficient coal mining equipment according to claim 1, characterized in that, The water spraying structure (5) includes a water tank (51) fixed to the lower end of the conveyor frame (1), a water outlet pipe (52) connected to the outer surface of the water tank (51), an elastic pipe (53) connected to the upper end of the water outlet pipe (52), a T-shaped pipe (54) connected to the upper end of the elastic pipe (53), and a spray head (55) movably connected to the outer surface of the T-shaped pipe (54). The lower end of the T-shaped tube (54) is connected to the movable frame (57), and a positioning frame (56) is provided between the movable frame (57) and the fixed plate (41). The outer surface of the rotating roller (44) is fixedly connected to the top moving frame (58), and the lower end of the T-shaped tube (54) is connected to the passive frame (59) corresponding to the top moving frame (58). One end of the outlet pipe (52) passes through the water tank (51) and is connected to the water pump (510), and the outer surface of the water tank (51) is connected to the inlet pipe (511).

3. The efficient coal mining equipment according to claim 1, characterized in that, The fixed plate (41) and the movable shell (42) are both in two sets and symmetrically distributed. The movable shell (42) slides up and down along the fixed plate (41). The springs (43) between each set of movable shells (42) and the fixed plate (41) are arranged in a straight line array.

4. The efficient coal mining equipment according to claim 3, characterized in that, The two ends of the spring (43) are fixedly connected to the movable outer shell (42) and the fixed plate (41) respectively. The two ends of the rotating roller (44) are rotatably connected to the two sets of movable outer shells (42) through bearings. The combing plate (45) is set in the middle of the rotating roller (44).

5. The efficient coal mining equipment according to claim 4, characterized in that, The lowest end of the carding plate (45) rotating around the rotating roller (44) is higher than the outer surface of the conveyor belt (2) and lower than the upper end of the isolation plate (3). The outer surface of the carding plate (45) has a comb-like structure with equal spacing between the comb teeth.

6. The efficient coal mining equipment according to claim 5, characterized in that, The carding plates (45) are arranged in a ring array with the rotating roller (44) as the center, and the length of both ends of the carding plates (45) is less than the conveying width of the conveyor belt (2).

7. The efficient coal mining equipment according to claim 2, wherein, The lower end of the water outlet pipe (52) is connected to the output end of the water pump (510), and the elastic pipe (53) is a spiral elastic flexible hose.

8. The efficient coal mining equipment according to claim 7, characterized in that, The T-shaped tube (54) is a T-shaped tubular structure, and each group of T-shaped tubes (54) corresponds to several groups of spray heads (55) distributed at intervals.

9. The efficient coal mining equipment according to claim 8, characterized in that, The movable frame (57) is a regular square prism structure. The movable frame (57) is slidably disposed in the positioning frame (56), and the positioning frame (56) is fixedly connected to the fixed plate (41).

10. The efficient coal mining equipment according to claim 9, characterized in that, The top driving frame (58) is a cylindrical structure, and a plurality of arc-shaped columnar bodies are arranged on the outer surface; the lower end of the passive frame (59) is an arc-shaped structure; and the top driving frame (58) drives the passive frame (59) to move up and down when rotating.

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