Crushing equipment for coal mining
By introducing the guide chute and oscillation component into the crushing equipment, the problem of feed port blockage is solved, efficient crushing and dust reduction are achieved, and the operating efficiency of the equipment is improved.
Patent Information
- Application Number
- CN202422550520.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-22
AI Technical Summary
Existing crushing equipment is prone to blockage when too much mineral material is fed into the feed port at one time, which affects operating efficiency and is difficult to clear.
A coal mining crushing equipment is designed, which includes a material guide chute, an oscillating component and a filter structure. The material guide chute is shaken by the oscillating component to shake out the ore, and small particles of debris are screened out through the filter structure to improve the pass rate.
It effectively prevents the feed port from being blocked, improves the working efficiency of the crushing equipment and the ore passing rate, and reduces dust pollution.
Smart Images
Figure CN223405083U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mining, in particular to a coal mining crushing device. Background Art
[0002] At the coal mining face, the coal lumps removed by the shearer vary in size, some too large to be transported directly via the conveyor. A crushing device breaks up these large lumps, reducing their size and weight for smoother transportation. The coal lumps removed by the shearer often contain debris such as limestone, sandstone, and mudstone, which can reduce coal quality and significantly impact subsequent washing. The crushing device not only crushes the coal lumps but also separates these debris, ensuring the quality of the mined coal and ensuring effective washing.
[0003] The impact crusher is a relatively common crushing device, consisting of a rotor, hammers, impact plates, frame, and power assembly. The power assembly drives the belt and pulleys, which rotate the rotor at high speed via an eccentric shaft. When materials enter the crushing chamber, they collide with the rotating hammers. Due to the high-speed rotation of the rotor, the hammers exert a strong impact force on the material, causing it to break and crush. The crushed ore enters the impact crusher through the feed port. However, since the feed port is usually located at the top of the crusher, if too much ore is fed into the feed port at once, it is very easy to become blocked, making it difficult for workers to clear the blockage, affecting operating efficiency. Utility Model Content
[0004] In response to the above problems, the utility model proposes a coal mining crushing equipment to solve the shortcomings of existing crushing equipment that when too much ore is put into the feed port at one time, the feed port is very easy to be blocked, and it is inconvenient for workers to clear it, affecting work efficiency.
[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a coal mining crushing equipment, including a base and an impact crushing box, the impact crushing box is fixedly connected to the upper end of the base, a discharge hopper is provided at the bottom of the impact crushing box, a feeding hopper is provided at the top of the impact crushing box, and the feeding hopper and the discharge hopper are connected to the impact crushing box;
[0006] The upper end of the base is fixedly connected to a collecting hopper and a conveyor belt, the input end of the conveyor belt is placed below the discharge hopper, and the output end of the conveyor belt is placed above the collecting hopper;
[0007] A material guide trough is provided on one side of the feeding hopper, one end of the material guide trough is hinged to the feeding hopper, an oscillation component for pushing the material guide trough to swing is provided on the upper end of the base, a filter structure is provided in the material guide trough, and the filter structure is placed above the conveyor belt.
[0008] A further improvement is that a crushing roller for crushing ore is provided inside the impact crushing box, the crushing roller is rotatably connected to the impact crushing box, and a power component for controlling the rotation of the crushing roller is provided outside the impact crushing box.
[0009] Further improvements are: the oscillation component includes a support frame, the support frame is fixedly connected to the upper end of the base, a vibration motor is provided at the upper end of the support frame, a connecting plate is provided at the lower end of the material guide trough, the connecting plate is detachably connected to the material guide trough, the vibration motor mounting end is hinged to the support frame, and the vibration motor output end is hinged to the connecting plate.
[0010] Further improvements are: the lower end surface of the connecting plate is equipped with multiple fixing bolts, the fixing bolts pass through the connecting plate and are threadedly connected to the bolt holes opened at the lower end of the material guide trough, and the material guide trough is fixedly connected to one end near the feeding hopper with a roller sleeve, and a roller is arranged through the roller sleeve, and the two ends of the roller are slidably connected to the through holes opened on the left and right sides of the feeding hopper.
[0011] A further improvement is that: both ends of the roller are threadedly connected with limit nuts, and the diameter of the limit nuts is larger than the diameter of the perforation.
[0012] A further improvement is that the filter structure includes a feed window, which is arranged at the end of the guide trough away from the impact crushing box. The feed window is opened on the lower end surface of the guide trough, and a filter is provided in the feed window, which is fixedly connected to the guide trough.
[0013] A further improvement is that a material guide cylinder is provided at the lower end of the material guide trough, the material guide cylinder is placed above the filter screen, and the material guide cylinder is fixedly connected to the material guide trough.
[0014] A further improvement is that: a plurality of support columns are provided at the lower end of the base, the support columns are fixedly connected to the base, and reinforcing ribs are provided at the connection between the support columns and the base.
[0015] A further improvement is that a pad is provided on the upper end surface of the support frame, the pad is placed below the material guide trough, and the pad is fixedly connected to the support frame.
[0016] Compared with the prior art, the beneficial effects of the present invention are:
[0017] There is also a guide trough at the feeding port of the hopper. The ore put into the hopper will first pass through the guide trough. When the stone is blocked on the guide trough, the oscillation component will push the guide trough to shake. The guide trough will shake the ore during the shaking. At the same time, it cooperates with the filter structure to increase the ore passing rate and improve the working efficiency of the crushing equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0019] Figure 1 It is a structural diagram of the base in the utility model.
[0020] Figure 2 It is a structural diagram of the support frame in the utility model.
[0021] Figure 3 It is a structural diagram of the material guide chute in the utility model.
[0022] Figure 4 It is a split structural diagram of the feeding hopper and the guide chute in the utility model.
[0023] Among them: 1. Base; 2. Support column; 3. Impact crushing box; 4. Power assembly; 5. Feed hopper; 6. Discharge hopper; 7. Conveyor belt; 8. Collection hopper; 9. Guide trough; 10. Support frame; 11. Connecting plate; 12. Fixing bolt; 14. Spacer; 15. Vibration motor; 16. Guide barrel; 17. Roller sleeve; 18. Filter screen; 19. Roller; 20. Limit nut; 21. Perforation. DETAILED DESCRIPTION
[0024] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0025] according to Figure 1 、 2 As shown in Figures 3 and 4, a coal mining crushing device is proposed in this embodiment, including a base 1 and an impact crushing box 3. The impact crushing box 3 is fixedly connected to the upper end of the base 1. A discharge hopper 6 is provided at the bottom of the impact crushing box 3, and a feeding hopper 5 is provided at the top of the impact crushing box 3. The feeding hopper 5 and the discharge hopper 6 are connected to the impact crushing box 3.
[0026] The upper end of the base 1 is fixedly connected to a collecting hopper 8 and a conveyor belt 7. The input end of the conveyor belt 7 is placed below the discharge hopper 6, and the output end of the conveyor belt 7 is placed above the collecting hopper 8.
[0027] After mining, the coal will be put into the feeding hopper 5 through the feeding hopper, and then crushed in the impact crushing box 3 through the feeding hopper 5. The crushed coal will be discharged through the discharging hopper 6 at the lower end of the impact crushing box 3, and the conveyor belt 7 will send it to the collecting hopper 8 to complete the collection.
[0028] A material guide trough 9 is provided on one side of the feeding hopper 5, one end of the material guide trough 9 is hinged to the feeding hopper 5, and an oscillation component for pushing the material guide trough 9 to swing is provided at the upper end of the base 1. A filter structure is provided in the material guide trough 9, and the filter structure is placed above the conveyor belt 7.
[0029] There is also a guide trough 9 at the feeding port of the feeding hopper 5. The ore put into the feeding hopper 5 will first pass through the guide trough 9. When the stone is blocked on the guide trough 9, the oscillation component will push the guide trough 9 to shake. The guide trough 9 will shake the ore during the shaking, and at the same time cooperate with the filter structure to increase the passing rate of the ore and improve the working efficiency of the crushing equipment.
[0030] About impact crusher 3:
[0031] Inside the impact crusher 3, a crushing roller is installed for crushing the ore. The crushing roller is rotatably connected to the impact crusher 3. Outside the impact crusher 3, a power assembly 4 is installed to control the rotation of the crushing roller. A striking member is installed on the outside of the crushing roller. When the crushing roller rotates, the striking member engages the impact plate inside the impact crusher 3, crushing the ore. The power assembly 4 includes two pulleys and a motor to control their rotation. The two pulleys are connected by a transmission belt, one of which is fixed to the crushing roller. The impact crusher is a commonly used crushing device and will not be described in detail here.
[0032] For the specific structure of the oscillation component, please refer to the following description.
[0033] The oscillation assembly includes a support frame 10, which is fixedly connected to the upper end of the base 1. A vibration motor 15 is provided at the upper end of the support frame 10, and a connecting plate 11 is provided at the lower end of the guide trough 9. The connecting plate 11 is detachably connected to the guide trough 9. The mounting end of the vibration motor 15 is hinged to the support frame 10, and the output end of the vibration motor 15 is hinged to the connecting plate 11. The shaking of the guide trough 9 is controlled by the vibration motor 15, which will not be described in detail here.
[0034] When feeding, the guide trough 9 collides with the ore continuously, so the wear of the guide trough 9 will be more severe. In order to facilitate the staff to replace the guide trough 9, in the preferred solution, the lower end face of the connecting plate 11 is equipped with multiple fixing bolts 12, and the fixing bolts 12 pass through the connecting plate 11 and are threadedly connected to the bolt holes opened at the lower end of the guide trough 9. The guide trough 9 is fixedly connected to the end near the feeding hopper 5 with a roller sleeve 17, and a roller 19 is provided through the roller sleeve 17. The two ends of the roller 19 are slidably connected to the through holes 21 opened on the left and right sides of the feeding hopper 5.
[0035] When the guide chute 9 is removed, the fixing bolt 12 at the lower end of the connecting plate 11 is unscrewed from the bolt hole at the lower end of the guide chute 9 to release the fixation between the guide chute 9 and the connecting plate 11. Then, the roller 19 is pulled out from the through hole 21 on the outside of the feeding hopper 5 and the roller sleeve 17 fixed to the guide chute 9. The connection between the guide chute 9 and the feeding hopper 5 is released, and the guide chute 9 can be completely removed.
[0036] It should be noted that both ends of the roller 19 are threadedly connected to limit nuts 20, and the diameter of the limit nuts 20 is larger than the diameter of the through hole 21. The limit nuts 20 prevent the roller 19 from coming out of the through hole 21.
[0037] About the filter structure:
[0038] The filter structure includes a feed window, which is located at the end of the guide chute 9 away from the impact crusher 3. The feed window is opened at the lower end surface of the guide chute 9 and is equipped with a filter 18. The filter 18 is fixedly connected to the guide chute 9. The ore poured into the guide chute 9 by the feeding car will first pass through the filter window. The oscillation component drives the guide chute 9 to shake, and small particles of debris in the ore can be screened out by the filter 18. The screened stone falls onto the conveyor belt 7 and can be directly transported away.
[0039] There is a height difference between the guide chute 9 and the conveyor belt 7. To reduce dust generated by debris falling from the filter screen 18, in a preferred embodiment, a guide barrel 16 is provided at the lower end of the guide chute 9. The guide barrel 16 is placed above the filter screen 18 and is fixedly connected to the guide chute 9. Ore debris falling through the filter screen 18 will fall onto the conveyor belt 7 through the guide barrel 16, reducing dust pollution.
[0040] It's worth noting that multiple support columns 2 are fixedly connected to the base 1 at the lower end. Reinforcement ribs are provided at the joints between the columns 2 and the base 1. These columns 2 are fixed to the lower end of the base 1, providing support and separating it from the ground. Of course, in addition to using the columns 2 to support the base 1, mobile wheels can also be installed at the bottom of the base 1 to increase the flexibility of the crushing equipment. This will not be discussed in detail here.
[0041] In a preferred embodiment, a pad 14 is provided on the upper end surface of the support frame 10. The pad 14 is placed below the guide chute 9 and is fixedly connected to the support frame 10. When the guide chute 9 suddenly falls downward due to an unexpected time, the pad 14 on the upper end of the support frame 10 will support the guide chute 9, preventing the ore on the guide chute 9 from sliding outward, thereby ensuring safe operation.
[0042] How this application works:
[0043] After mining, the coal will be put into the feeding hopper 5 through the feeding hopper, and then crushed in the impact crushing box 3 through the feeding hopper 5. The crushed coal will be discharged through the discharging hopper 6 at the lower end of the impact crushing box 3, and the conveyor belt 7 will send it to the collecting hopper 8 to complete the collection.
[0044] There is also a guide trough 9 at the feeding port of the feeding hopper 5. The ore put into the feeding hopper 5 will first pass through the guide trough 9. When the stone is blocked on the guide trough 9, the oscillation component will push the guide trough 9 to shake. The guide trough 9 will shake the ore during the shaking, and at the same time cooperate with the filter structure to increase the passing rate of the ore and improve the working efficiency of the crushing equipment.
[0045] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0046] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily 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 application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.
Claims
1. A coal mining crushing device, comprising a base (1) and an impact crushing box (3), wherein the impact crushing box (3) is fixedly connected to the upper end of the base (1), and a discharge hopper (6) is provided at the bottom of the impact crushing box (3), characterized in that: A feeding hopper (5) is provided on the top of the impact crushing box (3), and the feeding hopper (5) and the discharging hopper (6) are in communication with the impact crushing box (3); The upper end of the base (1) is fixedly connected to a collecting hopper (8) and a conveyor belt (7), the input end of the conveyor belt (7) is placed below the discharge hopper (6), and the output end of the conveyor belt (7) is placed above the collecting hopper (8); A material guide trough (9) is provided on one side of the feeding hopper (5), one end of the material guide trough (9) is hinged to the feeding hopper (5), an oscillating component for pushing the material guide trough (9) to swing is provided on the upper end of the base (1), a filter structure is provided in the material guide trough (9), and the filter structure is placed above the conveyor belt (7).
2. A coal mining crushing equipment according to claim 1, characterized in that: A crushing roller for crushing ore is provided inside the impact crushing box (3), the crushing roller is rotatably connected to the impact crushing box (3), and a power assembly (4) for controlling the rotation of the crushing roller is provided outside the impact crushing box (3).
3. The coal mining crushing equipment according to claim 1, characterized in that: The oscillation component comprises a support frame (10), the support frame (10) is fixedly connected to the upper end of the base (1), a vibration motor (15) is provided at the upper end of the support frame (10), a connecting plate (11) is provided at the lower end of the material guide trough (9), the connecting plate (11) is detachably connected to the material guide trough (9), a mounting end of the vibration motor (15) is hinged to the support frame (10), and an output end of the vibration motor (15) is hinged to the connecting plate (11).
4. The coal mining crushing equipment according to claim 3, characterized in that: The lower end surface of the connecting plate (11) is equipped with a plurality of fixing bolts (12), the fixing bolts (12) pass through the connecting plate (11) and are threadedly connected to the bolt holes provided at the lower end of the material guide trough (9), and the material guide trough (9) is fixedly connected to one end thereof close to the feeding hopper (5), and a roller (19) is provided through the roller sleeve (17), and the two ends of the roller (19) are slidably connected to the through holes (21) provided on the left and right sides of the feeding hopper (5).
5. The coal mining crushing equipment according to claim 4, characterized in that: Both ends of the roller (19) are threadedly connected to limit nuts (20), and the diameter of the limit nuts (20) is larger than the diameter of the through hole (21).
6. The coal mining crushing equipment according to claim 1, characterized in that: The filter structure includes a feed window, which is arranged at one end of the guide trough (9) away from the impact crushing box (3), and the feed window is opened on the lower end surface of the guide trough (9). A filter (18) is provided in the feed window, and the filter (18) is fixedly connected to the guide trough (9).
7. The coal mining crushing equipment according to claim 6, characterized in that: A material guide cylinder (16) is provided at the lower end of the material guide trough (9), the material guide cylinder (16) is placed above the filter screen (18), and the material guide cylinder (16) is fixedly connected to the material guide trough (9).
8. The coal mining crushing equipment according to claim 1, characterized in that: A plurality of support columns (2) are provided at the lower end of the base (1); the support columns (2) are fixedly connected to the base (1); and reinforcing ribs are provided at the connection between the support columns (2) and the base (1).
9. The coal mining crushing equipment according to claim 3, characterized in that: A pad (14) is provided on the upper end surface of the support frame (10), and the pad (14) is placed below the material guide trough (9). The pad (14) is fixedly connected to the support frame (10).