A rotary gangue discharging system

Abstract

A rotary gangue discharging system includes a sequentially arranged gangue discharging conveyor belt and a gangue transporting conveyor belt. The starting end of the gangue discharging conveyor belt is located below the ending end of the gangue transporting conveyor belt. The ending end of the gangue discharging conveyor belt is higher than the starting end. The gangue discharging conveyor belt is also connected with a bracket for supporting the gangue discharging conveyor belt, and the bracket is connected with a winch for pulling the bracket to rotate around the starting end of the gangue discharging conveyor belt. The present invention provides a rotary gangue discharging system, which can control the gangue discharging direction, avoid uneven distribution, improve the safety of the gangue hill, and can greatly improve the gangue discharging efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of gangue treatment, and specifically to a rotary gangue discharging system. Background Art

[0002] For a long time, the technology of using a winch to tow a skip for gangue discharging has been adopted in coal mines. The transportation process is complex, there are many potential safety hazards, and the gangue discharging efficiency is low. With the increase of the mine exploitation years and the implementation of large-section tunneling, the amount of gangue has also increased, resulting in a serious shortage of the supply of material transport vehicles in the existing gangue discharging technology, which restricts the underground raw coal production and the replacement of working faces. Summary of the Invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a rotary gangue discharging system, which can control the direction of gangue discharging, avoid uneven distribution, improve the safety of the gangue hill, and can greatly improve the gangue discharging efficiency.

[0004] To achieve the above object, the specific solution adopted by the present invention is as follows: a rotary gangue discharging system, including a gangue discharging conveyor belt and a gangue transporting conveyor belt arranged in sequence. The starting end of the gangue discharging conveyor belt is located below the ending end of the gangue transporting conveyor belt. The ending end of the gangue discharging conveyor belt is higher than the starting end. The gangue discharging conveyor belt is also connected with a support for supporting the gangue discharging conveyor belt, and the support is connected with a winch for pulling the support to rotate around the starting end of the gangue discharging conveyor belt.

[0005] As a further optimization of the above rotary gangue discharging system: the starting end of the gangue discharging conveyor belt is connected to the ground through a rotating support mechanism. The rotating support mechanism includes a plurality of positioning piles vertically arranged on the ground. The upper end of the positioning pile is provided with a screw hole extending along the length direction. An elevating screw is arranged in the screw hole in a matching manner. The upper end of the elevating screw is detachably connected with a connecting head. All the connecting heads are fixedly connected together to form a base plate. A support plate is rotatably arranged on the base plate. The starting end of the gangue discharging conveyor belt is fixedly arranged on the support plate.

[0006] As a further optimization of the above rotary gangue discharging system: the upper end of the positioning pile is fixedly connected with a first connecting ring. The middle part of the elevating screw is fixedly sleeved with a second connecting ring. A cylindrical soft protective sleeve is fixedly connected between the first connecting ring and the second connecting ring. The soft protective sleeve is sleeved on the elevating screw.

[0007] As a further optimization of the above rotary gangue discharging system: both ends of the soft protective sleeve are respectively fixedly connected with a first sealing ring and a second sealing ring. The first sealing ring is sleeved on the first connecting ring and fixed through a first fixing ring. The second sealing ring is sleeved on the second connecting ring and fixed through a second fixing ring.

[0008] As a further optimization of the above rotary waste discharging system: a lining plate is fixedly arranged on the base plate. The lining plate is circular and an annular groove is formed on the side wall. The support plate is arranged on the lining plate, and a plurality of balls are arranged between the support plate and the lining plate in a rolling manner. The support plate is also fixedly connected with a protective sleeve. The protective sleeve extends towards the base plate and is sleeved on the periphery of the lining plate. A plurality of positioning bolts are arranged on the protective sleeve, and the positioning bolts extend into the annular groove.

[0009] As a further optimization of the above rotary waste discharging system: a positioning sleeve is fixedly arranged on the lining plate, and the support plate is fixedly connected with a positioning rod which is inserted into the positioning sleeve.

[0010] As a further optimization of the above rotary waste discharging system: the base plate is fixedly connected with a limiting plate, and the limiting plate and the support plate are respectively located on both sides of the base plate. An arc-shaped limiting groove is formed on the limiting plate and penetrates through the base plate. The support plate is fixedly connected with an extension plate, and a follower screw is arranged on the extension plate and slidably arranged in the limiting groove.

[0011] As a further optimization of the above rotary waste discharging system: a suspension mechanism for connecting the waste discharging conveyor belt is arranged on the support. The suspension mechanism includes a connecting plate fixedly connected with the support. The connecting plate is fixedly connected with a plurality of suspension rods. The plurality of suspension rods are fixedly connected with a bearing plate together. The bearing plate is connected with three parallel mounting plates. A wheel shaft is rotatably arranged between adjacent two mounting plates. A pulley is fixedly sleeved on the wheel shaft. A steel rope is wound around the pulley, and the steel rope is fixedly connected with the waste discharging conveyor belt.

[0012] As a further optimization of the above rotary waste discharging system: a connecting shaft is rotatably arranged on the bearing plate. The two ends of the connecting shaft are respectively fixedly connected with a first rotating plate and a second rotating plate. The mounting plate is fixedly connected with the second rotating plate, and the mounting plate and the second rotating plate are perpendicular to each other.

[0013] As a further optimization of the above rotary waste discharging system: the inner side wall of the pulley is arranged as a conical surface, and the small end of the conical surface faces the middle of the wheel shaft.

[0014] Beneficial effects: The present invention can control the direction of waste discharging, avoid uneven distribution, improve the safety of the waste rock mountain, and can greatly improve the waste discharging efficiency by using the waste discharging conveyor belt to replace the traditional combination of winch and skip. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the present invention;

[0016] Figure 2 is the structural schematic diagram of the rotating support mechanism;

[0017] Figure 3 is Figure 2 an enlarged view of part A in

[0018] Figure 4 is Figure 2 an enlarged view of part B in

[0019] Figure 5 a structural schematic diagram of the suspension mechanism.

[0020] Description of the drawings: 1 - support, 2 - suspension mechanism, 3 - waste discharge conveyor belt, 4 - waste hauling conveyor belt, 5 - winch, 6 - protective layer, 7 - positioning pile, 8 - screw hole, 9 - lifting screw rod, 10 - air vent hole, 11 - cover plate, 12 - first connecting ring, 13 - soft protective sleeve, 14 - second connecting ring, 15 - connecting head, 16 - tapered part, 17 - base plate, 18 - limiting plate, 19 - extension plate, 20 - locking nut, 21 - support plate, 22 - positioning rod, 23 - protective sleeve, 24 - positioning bolt, 25 - annular groove, 26 - ball, 27 - positioning sleeve, 28 - lining plate, 29 - follower screw rod, 30 - first sealing ring, 31 - first fixing ring, 32 - second sealing ring, 33 - second fixing ring, 34 - suspension rod, 35 - connecting plate, 36 - first rotating plate, 37 - connecting bolt, 38 - connecting shaft, 39 - bearing plate, 40 - second rotating plate, 41 - mounting plate, 42 - wheel axle, 43 - pulley, 44 - tapered surface. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 to 5 , a rotary waste discharge system, including a waste discharge conveyor belt 3 and a waste hauling conveyor belt 4 arranged in sequence. The starting end of the waste discharge conveyor belt 3 is located below the ending end of the waste hauling conveyor belt 4. The ending end of the waste discharge conveyor belt 3 is higher than the starting end. The waste discharge conveyor belt 3 is also connected with a support 1 for supporting the waste discharge conveyor belt 3, and the support 1 is connected with a winch 5 for pulling the support 1 to rotate around the starting end of the waste discharge conveyor belt 3.

[0023] In use, the coal gangue conveyor belt 4 is used to convey coal gangue to the outside. When the coal gangue reaches the end of the coal gangue conveyor belt 4, it falls onto the waste rock conveyor belt 3. Subsequently, under the action of the waste rock conveyor belt 3, it gradually rises upward. When it reaches the end of the waste rock conveyor belt 3, it falls downward onto the waste rock mountain, thus completing the process of discharging waste rock. After a period of time, the winch 5 can be used to pull the support 1 to move, and then the support 1 drives the waste rock conveyor belt 3 to rotate around the starting end, thereby changing the direction of the waste rock conveyor belt 3, and then changing the waste rock discharge direction, avoiding uneven distribution, and improving the safety of the waste rock mountain.

[0024] The present invention can control the waste rock discharge direction, avoid uneven distribution, improve the safety of the waste rock mountain, and use the waste rock conveyor belt 3 to replace the traditional combination of winch and skip, which can greatly improve the waste rock discharge efficiency.

[0025] The specific setting method of the starting end of the waste rock conveyor belt 3 is as follows: the starting end of the waste rock conveyor belt 3 is connected to the ground through a rotating support mechanism. The rotating support mechanism includes a plurality of positioning piles 7 vertically arranged on the ground. The upper end of the positioning pile 7 is provided with a screw hole 8 extending along the length direction. A lifting screw rod 9 is arranged in the screw hole 8 in a matching manner. The upper end of the lifting screw rod 9 is detachably connected with a connecting head 15. All the connecting heads 15 are fixedly connected to a base plate 17. A support plate 21 is rotatably arranged on the base plate 17. The starting end of the waste rock conveyor belt 3 is fixedly arranged on the support plate 21. During the installation process, first, the positioning piles 7 are fixedly inserted into the ground, and then the lifting screw rod 9 is rotated to make the lifting screw rod 9 move axially, so as to change the position of the upper end of the lifting screw rod 9 until the upper ends of all the lifting screw rods 9 are located on the same horizontal plane. Then, the connecting head 15 is connected to the upper end of the lifting screw rod 9. The connection method is selected as a threaded connection. Correspondingly, a connection screw hole matching the lifting screw rod 9 is opened on the connecting head 15. Subsequently, the base plate 17 is welded and fixed to all the connecting heads 15. Then, the support plate 21 is arranged on the base plate 17. Finally, the starting end of the waste rock conveyor belt 3 is fixed to the support plate 21. The positioning piles 7 can enhance the stability of the rotating support mechanism, and then ensure the stability of the starting end of the waste rock conveyor belt 3, avoiding the deviation of the waste rock conveyor belt 3; the lifting screw rod 9 can adjust the base plate 17 to a horizontal state, so that the waste rock conveyor belt 3 will not be inclined during installation, which is convenient for installation.

[0026] Considering that the air pressure inside and outside the screw hole 10 will be unbalanced during the movement of the lifting screw rod 9, which will hinder the lifting screw rod 9, in order to ensure the smooth movement of the lifting screw rod 9, a vent hole 10 extending along the axial direction is opened in the middle of the lifting screw rod 9. Through the vent hole 10, the air pressure inside and outside the screw hole 10 can be balanced, avoiding hindering the movement of the lifting screw rod 9.

[0027] Considering that there are many corrosion factors in the soil, in order to protect the positioning pile 7, a protective layer 7 can be provided on the surface of the positioning pile 7. The positioning pile 7 can be made of metal material to enhance the shear resistance, and the protective layer 7 can be made of cement material to prevent the positioning pile 7 from being corroded quickly.

[0028] In order to facilitate welding the connector 15 to the substrate 17, a tapered portion 16 is integrally connected to the upper end of the connector 15, and the small end of the tapered portion 16 faces the substrate 17. The tapered portion 16 can reduce the gap between the connector 15 and the substrate 17, thus achieving the effect of facilitating welding.

[0029] In order to protect the lifting screw 9 and prevent it from being rusted and stuck, a first connecting ring 12 is fixedly connected to the upper end of the positioning pile 7, and a second connecting ring 14 is fixedly sleeved on the middle part of the lifting screw 9. A cylindrical soft protective sleeve 13 is fixedly connected between the first connecting ring 12 and the second connecting ring 14, and the soft protective sleeve 13 is sleeved on the lifting screw 9. The soft protective sleeve 13 can prevent the mating part of the lifting screw 9 and the screw hole 8 from being exposed to the air, thus achieving the effect of protecting the lifting screw 9. The soft protective sleeve 13 can be made of rubber or other materials, and the soft protective sleeve 13 can also be replaced regularly to maintain the effect of protecting the lifting screw 9.

[0030] The specific setting method of the soft protective sleeve 13 is as follows: first sealing rings 30 and second sealing rings 32 are respectively fixedly connected to both ends of the soft protective sleeve 13. The first sealing ring 30 is sleeved on the first connecting ring 12 and fixed by a first fixing ring 31, and the second sealing ring 32 is sleeved on the second connecting ring 14 and fixed by a second fixing ring 33. The first sealing ring 30 and the second sealing ring 32 can improve the sealing performance at both ends of the soft protective sleeve 31, thus preventing corrosion factors such as water vapor in the external environment from invading the inside of the soft protective sleeve 13 and further enhancing the protection effect on the lifting screw 9. The first fixing ring 31 and the second fixing ring 33 can be wound with metal wires, which is convenient for installation.

[0031] A covering plate 11 is also fixedly connected to the upper end of the positioning pile 7, and the positioning pile 7 passes through the covering plate 11. The covering plate 11 can contact the ground to play an auxiliary supporting role and prevent the positioning pile 7 from shifting.

[0032] The specific setting method of the support plate 21 is as follows: A lining plate 28 is fixedly arranged on the substrate 17. The lining plate 28 is circular and an annular groove 25 is formed on the side wall. The support plate 21 is arranged on the lining plate 28, and a plurality of balls 26 are arranged in a rolling manner between the support plate 21 and the lining plate 28. The support plate 21 is also fixedly connected with a protective sleeve 23. The protective sleeve 23 extends towards the substrate 17 and is sleeved on the periphery of the lining plate 28. A plurality of positioning bolts 24 are inserted through the protective sleeve 23, and the positioning bolts 24 extend into the annular groove 25. Raceways for cooperating with the balls 26 are formed on the support plate 21 and the lining plate 28, so as to support the support plate 21 by means of the balls 26 and ensure that the support plate 21 can rotate smoothly. The protective sleeve 23 is used to protect the balls 26 from being eroded by the external environment. The positioning bolts 24 can cooperate with the annular groove 25 to prevent the support plate 21 from falling off.

[0033] In order to facilitate the installation of the support plate 21 onto the lining plate 28 and at the same time facilitate the entry of the balls 26 into the raceway on the support plate 21, a positioning sleeve 27 is fixedly arranged on the lining plate 28, and a positioning rod 22 is fixedly connected to the support plate 21. The positioning rod 22 is inserted into the positioning sleeve 27. The positioning rod 22 and the positioning sleeve 27 can control the installation direction of the support plate 21, thereby facilitating the installation of the support plate 21 onto the lining plate 28.

[0034] In most cases, the range of the waste rock mountain is limited. Therefore, the rotation amplitude of the waste rock conveyor belt 3 should also be limited. In order to control the rotation amplitude of the waste rock conveyor belt 3, the substrate 17 is fixedly connected with a limiting plate 18, and the limiting plate 18 and the support plate 21 are respectively located on both sides of the substrate 17. An arc-shaped limiting groove is formed on the limiting plate 18, and the limiting groove penetrates through the substrate 17. The support plate 21 is fixedly connected with an extension plate 19, and a follower screw 29 is inserted through the extension plate 19. The follower screw 29 is slidably arranged in the limiting groove. The limiting groove can limit the moving range of the follower screw 29, and the follower screw 29 rotates along with the support plate 12. Therefore, the rotation direction of the support plate 12 can be controlled, so as to achieve the effect of limiting the rotation amplitude of the waste rock conveyor belt 3. In the present invention, the rotation amplitude of the waste rock conveyor belt 3 is set to 160°.

[0035] Two locking nuts 20 are sleeved on the follower screw 29 in a matching manner, and the two locking nuts 20 are respectively located on both sides of the extension plate 19. By adjusting the positions of the two locking nuts 20 on the follower screw 19, the position of the follower screw 29 can be adjusted to ensure that the follower screw 29 can pass through the limiting groove. On the other hand, the stability of the follower screw 29 can also be ensured.

[0036] The specific connection method between the support 1 and the waste discharging conveyor belt 3 is as follows: A suspension mechanism 2 for connecting the waste discharging conveyor belt 3 is provided on the support 1. The suspension mechanism 2 includes a connecting plate 35 fixedly connected to the support 1. A plurality of suspension rods 34 are fixedly connected to the connecting plate 35. A bearing plate 39 is fixedly connected by the plurality of suspension rods 34. The bearing plate 39 is connected with three mutually parallel mounting plates 41. A wheel shaft 42 is rotatably arranged between two adjacent mounting plates 41. A pulley 43 is fixedly sleeved on the wheel shaft 42. A steel rope is wound around the pulley 43, and the steel rope is fixedly connected to the waste discharging conveyor belt 3. The two steel ropes are cross - arranged, and the end of the steel rope is fixedly connected to the corner of the waste discharging conveyor belt 3. Through the suspension mechanism 2, the waste discharging conveyor belt 3 can move within a small range under the cooperation of the steel rope and the pulley 43, and during the process of the winch 5 pulling the support 1, damage to the support 1 can be avoided.

[0037] In order to further improve the flexibility of the pulley 43 and thus ensure the avoidance of damage to the support 1, a connecting shaft 38 is rotatably penetrated through the upper part of the bearing plate 39. The two ends of the connecting shaft 38 are respectively fixedly connected with a first rotating plate 36 and a second rotating plate 40. The mounting plate 41 is fixedly connected with the second rotating plate 40, and the mounting plate 41 and the second rotating plate 40 are perpendicular to each other. The first rotating plate 36 and the second rotating plate 40 can rotate, so that the direction of the pulley 43 can be adjusted, and thus the effect of improving the flexibility of the pulley 43 is achieved.

[0038] The second rotating plate 40 is integrally connected with a rotating shaft. After the rotating shaft passes through the bearing plate 39, it is connected to the first rotating plate 36 through a connecting bolt 37. This connection method is simple and fast.

[0039] In order to prevent the steel rope from falling off the pulley 43, the inner side wall of the pulley 43 is set as a conical surface 44, and the small end of the conical surface 44 faces the middle of the wheel shaft 42. The two end faces of the pulley 43 are respectively close to the two mounting plates 41, so as to prevent the steel rope from entering between the pulley 43 and the mounting plate 41. Moreover, the setting of the conical surface 44 can reset the steel rope when the steel rope deviates.

[0040] 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 obvious to those skilled in the art. The general principles defined herein can 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 these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary gangue discharging system, characterized in that: It includes a waste discharging conveyor belt (3) and a waste transporting conveyor belt (4) arranged in sequence. The starting end of the waste discharging conveyor belt (3) is located below the ending end of the waste transporting conveyor belt (4). The ending end of the waste discharging conveyor belt (3) is higher than the starting end. The waste discharging conveyor belt (3) is also connected with a bracket (1) for supporting the waste discharging conveyor belt (3). The bracket (1) is connected with a winch (5) for pulling the bracket (1) to rotate around the starting end of the waste discharging conveyor belt (3). A suspension mechanism (2) for connecting the waste discharging conveyor belt (3) is arranged on the bracket (1). The suspension mechanism (2) includes a connecting plate (35) fixedly connected with the bracket (1). The connecting plate (35) is fixedly connected with a plurality of suspension rods (34). The plurality of suspension rods (34) are jointly and fixedly connected with a bearing plate (39). The bearing plate (39) is connected with three mutually parallel mounting plates (41). A wheel shaft (42) is rotatably arranged between two adjacent mounting plates (41). A pulley (43) is fixedly sleeved on the wheel shaft (42). A steel rope is wound around the pulley (43), and the steel rope is fixedly connected with the waste discharging conveyor belt (3). The inner side wall of the pulley (43) is set as a conical surface (44), and the small end of the conical surface (44) faces the middle of the wheel shaft (42). A connecting shaft (38) is rotatably penetrated through the upper part of the bearing plate (39). The two ends of the connecting shaft (38) are respectively fixedly connected with a first rotating plate (36) and a second rotating plate (40). The mounting plate (41) is fixedly connected with the second rotating plate (40), and the mounting plate (41) and the second rotating plate (40) are perpendicular to each other. The starting end of the waste discharging conveyor belt (3) is connected with the ground through a rotating support mechanism. The rotating support mechanism includes a plurality of positioning piles (7) vertically arranged on the ground. A screw hole (8) extending along the length direction is opened at the upper end of the positioning pile (7). A lifting screw rod (9) is arranged in the screw hole (8) in a matching way. The upper end of the lifting screw rod (9) is detachably connected with a connecting head (15). All the connecting heads (15) are jointly and fixedly connected with a base plate (17). A support plate (21) is rotatably arranged on the base plate (17). The starting end of the waste discharging conveyor belt (3) is fixedly arranged on the support plate (21). The base plate (17) is fixedly connected with a limiting plate (18). The limiting plate (18) and the support plate (21) are respectively located on both sides of the base plate (17). An arc-shaped limiting groove is opened on the limiting plate (18), and the limiting groove penetrates through the base plate (17). The support plate (21) is fixedly connected with an extension plate (19). A follower screw rod (29) is penetrated through the extension plate (19), and the follower screw rod (29) is slidably arranged in the limiting groove.

2. The rotary gangue discharging system according to claim 1, characterized in that: The upper end of the positioning pile (7) is fixedly connected with a first connecting ring (12). The middle part of the lifting screw rod (9) is fixedly sleeved with a second connecting ring (14). A cylindrical soft protective sleeve (13) is fixedly connected between the first connecting ring (12) and the second connecting ring (14), and the soft protective sleeve (13) is sleeved on the lifting screw rod (9).

3. The rotary gangue discharging system according to claim 2, characterized in that: Both ends of the soft protective sleeve (13) are fixedly connected with a first sealing ring (30) and a second sealing ring (32) respectively. The first sealing ring (30) is sleeved on the first connecting ring (12) and fixed by a first fixing ring (31), and the second sealing ring (32) is sleeved on the second connecting ring (14) and fixed by a second fixing ring (33).

4. The rotary gangue discharging system according to claim 1, characterized in that: A lining plate (28) is fixedly arranged on the substrate (17). The lining plate (28) is circular and an annular groove (25) is formed in the side wall. The support plate (21) is arranged on the lining plate (28), and a plurality of balls (26) are arranged in a rolling manner between the support plate (21) and the lining plate (28). The support plate (21) is also fixedly connected with a protective sleeve (23). The protective sleeve (23) extends towards the substrate (17) and is sleeved on the periphery of the lining plate (28). A plurality of positioning bolts (24) are inserted through the protective sleeve (23), and the positioning bolts (24) extend into the annular groove (25).

5. The rotary gangue discharging system according to claim 4, characterized in that: A positioning sleeve (27) is fixedly arranged on the lining plate (28), and the support plate (21) is fixedly connected with a positioning rod (22). The positioning rod (22) is inserted into the positioning sleeve (27).

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