Mining grading device

Abstract

The mining grading device comprises a screening box, a supporting rod and a feeding hopper, the supporting rod is fixed to the bottom of the screening box, the feeding hopper is arranged at one end of the upper side of the screening box, a vibrating mechanism is arranged on the side wall of the screening box, a screening plate is rotationally connected to the inner wall of the screening box, the screening plate is connected with the vibrating mechanism, and the vibrating mechanism is connected with the supporting rod. A discharging hopper is arranged on the side wall of the screening box, a discharging opening is formed in the bottom of the side, symmetrical to the discharging hopper, of the screening box, the vibrating mechanism comprises a rotating shaft, a fixing plate, a cam and a driving push rod, a limiting ring is fixed to the rotating shaft, a rotating ring is rotationally connected to the limiting ring, a vibrating spring is arranged on the rotating ring, and the vibrating spring is arranged on the rotating ring. The other end of the vibration spring is connected to the bottom of the sieve plate. The utility model belongs to the technical field of mining, and particularly relates to a mining grading device.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine exploitation, and specifically refers to a mine exploitation classification device. Background Technique

[0002] Mine exploitation refers to the exploitation of solid metal and non-metal ore deposits. After the ore is mined, it needs to be preliminarily crushed and ground to facilitate storage and transportation. The size of the crushed and ground ore is different, and it needs to be classified for subsequent processing and utilization. The existing mine exploitation classification devices, such as a mine exploitation classification device disclosed in the application number CN201921401804.7, through the setting of three-stage screening, can perform four-stage screening on the stones, improve the screening efficiency, and use a screening cylinder for screening, which can reduce the screening noise and will not cause the phenomenon of stones getting stuck.

[0003] However, in actual use, relying on the rolling method for screening and conveying, when the ore accumulates, it is easy to be tightly clamped due to mutual contact, and thus cannot fall out from the gap of the screening cylinder. The error during screening is large, and there will still be a situation of material jamming. In addition, on the surface of the adopted screening cylinder, there are guide blocks, which are easily deformed by the impact of the ore, thus affecting the screening efficiency and effect, and will further increase the risk of material jamming. In particular, for this reason, we propose a mine exploitation classification device to solve the above problems. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a mine exploitation classification device, which effectively solves the problems that the existing mine exploitation classification device is prone to material jamming caused by ore accumulation, resulting in large screening errors, and solves the problems that the screening cylinder with an uneven surface is easily damaged by impact and increases the risk of material jamming.

[0005] The technical solution adopted by the utility model is as follows: A mine exploitation classification device proposed by the utility model includes a screening box, a support rod, and a feeding hopper. The support rod is fixed to the bottom of the screening box, the feeding hopper is arranged at one end on the upper side of the screening box, a vibration mechanism is arranged on the side wall of the screening box, a sieve plate is rotatably connected to the inner wall of the screening box and is connected to the vibration mechanism, a discharge hopper is arranged on the side wall of the screening box, and a discharge port is arranged at the bottom of the screening box on the side symmetrical to the discharge hopper.

[0006] As an improvement of this solution, the vibration mechanism includes a rotating shaft, a fixing plate, a cam, and a driving push rod. The cam is rotatably connected to the inner wall of the screening box and is arranged below the sieve plate. The fixing plate is fixed to the middle of the bottom of one side of the sieve plate. The cam is fixed to the end of the fixing plate and is arranged below the fixing plate. One end of the driving push rod is rotatably connected to the cam, and the other end of the driving push rod is rotatably connected to the fixing plate.

[0007] As an improvement of this solution, a limit ring is fixed on the rotating shaft, a rotating ring is rotatably connected to the limit ring, a vibration spring is arranged on the rotating ring, and the other end of the vibration spring is connected to the bottom of the sieve plate.

[0008] As an improvement of this solution, there are six groups of the rotating shafts, and the six groups of rotating shafts are symmetrically distributed about the middle plane where the driving push rod is located. A pulley is rotatably connected to the side wall of the screening box and is connected to two groups of rotating shafts above on the corresponding side. A transmission pulley is fixedly connected to the outside of the lower pulley, and a transmission belt is connected to the lowermost group of rotating shafts. Transmission belts are respectively connected between the pulley and the transmission pulley.

[0009] As an improvement of this solution, a motor bracket is fixed on the side of the screening box symmetrical to the pulley, a reduction motor is arranged on the motor bracket, and the output shaft of the reduction motor penetrates through the motor bracket and the screening box and is connected to the rotating shaft.

[0010] As an improvement of this solution, a baffle is rotatably connected to the inner wall of the feeding hopper, a swing rod is rotatably connected to the outer wall of the feeding hopper, and the swing rod penetrates through the side wall of the screening box and is fixedly connected to the baffle. An electric push rod is rotatably connected to the side wall of the screening box, and the output end of the electric push rod is rotatably connected to the swing rod.

[0011] As an improvement of this solution, the discharge hopper and the sieve plate are arranged at intervals, the vibration mechanism and the discharge hopper are symmetrically arranged about the middle plane of the sieve plate, and the vibration spring is arranged between the rotating shaft and the sieve plate.

[0012] As an improvement of this solution, the sieve plate is arranged in a cuboid shape with an open top, and a plurality of through holes are evenly distributed at the bottom of the sieve plate. The discharge hopper is arranged in a U-shaped plate shape, and the rotating ring is arranged in an O-shaped shape.

[0013] As an improvement of this solution, there are three groups of the sieve plates, and the through holes at the bottom of the sieve plates gradually become smaller from top to bottom.

[0014] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0015] 1. By adopting a plate-shaped sieve plate, the situation of material jamming caused by ore accumulation can be effectively avoided, and a vibration mechanism is provided. Through the high-frequency shaking of the sieve plate, the accumulation of ore can be further avoided, and the situation of fine ore blocking the sieve plate can be reduced. The structure is simple and durable, improving the screening effect and service life;

[0016] 2. A closable feeding structure is provided, which can close the feeding hopper after adding ore, avoid the harm caused by the dust generated during screening to the human body, and reduce the dust pollution, making it more environmentally friendly to use. Description of the Drawings

[0017] Figure 1 The overall structural schematic diagram of a mine - opening grading device proposed by the present utility model;

[0018] Figure 2 The internal structural schematic diagram of a mine - opening grading device proposed by the present utility model;

[0019] Figure 3 is Figure 2 The partial enlarged schematic diagram of part A in

[0020] Figure 4 The sectional view of a mine - opening grading device proposed by the present utility model.

[0021] Among them, 1. Screening box; 2. Support rod; 3. Feeding hopper; 4. Vibration mechanism; 5. Sieve plate; 6. Discharge hopper; 7. Discharge port; 8. Rotating shaft; 9. Fixed plate; 10. Cam; 11. Driving push rod; 12. Limit ring; 13. Rotating ring; 14. Vibration spring; 15. Pulley; 16. Driving pulley; 17. Transmission belt; 18. Motor bracket; 19. Reducing motor; 20. Baffle; 21. Swing rod; 22. Electric push rod.

[0022] The attached drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a mine - opening grading device proposed by the present utility model includes a screening box 1, a support rod 2 and a feeding hopper 3. The support rod 2 is fixed to the bottom of the screening box 1, the feeding hopper 3 is arranged at one end on the upper side of the screening box 1, a vibration mechanism 4 is arranged on the side wall of the screening box 1, a sieve plate 5 is rotatably connected to the inner wall of the screening box 1, and the sieve plate 5 is connected to the vibration mechanism 4. A discharge hopper 6 is arranged on the side wall of the screening box 1, and a discharge port 7 is arranged at the bottom of the screening box 1 on the side symmetrical to the discharge hopper 6.

[0025] In order to achieve the vibration of the sieve plate 5 and avoid the problems of ore accumulation, mutual jamming, and inaccurate screening caused by this, the vibration mechanism 4 includes a rotating shaft 8, a fixed plate 9, a cam 10, and a driving push rod 11. The cam 10 is rotatably connected to the inner wall of the screening box 1 and is arranged below the sieve plate 5. The fixed plate 9 is fixed to the middle of the bottom on one side of the sieve plate 5. The cam 10 is fixed to the end of the fixed plate 9 and is arranged below the fixed plate 9. One end of the driving push rod 11 is rotatably connected to the cam 10, and the other end of the driving push rod 11 is rotatably connected to the fixed plate 9; a limiting ring 12 is fixed on the rotating shaft 8, a rotating ring 13 is rotatably connected to the limiting ring 12, a vibration spring 14 is arranged on the rotating ring 13, and the other end of the vibration spring 14 is connected to the bottom of the sieve plate 5; there are six groups of rotating shafts 8, and the six groups of rotating shafts 8 are symmetrically distributed about the middle plane where the driving push rod 11 is located. A pulley 15 is rotatably connected to the side wall of the screening box 1 and is connected to two groups of rotating shafts 8 above it on the same side. A transmission pulley 16 is fixedly connected to the outside of the pulley 15 in the lower group, and a transmission belt 17 is connected to the rotating shaft 8 in the lowermost group. Transmission belts 17 are respectively connected between the pulley 15 and the transmission pulley 16.

[0026] On one side of the screening box 1 symmetric to the pulley 15, a motor bracket 18 is fixed. A reduction motor 19 is arranged on the motor bracket 18. The output shaft of the reduction motor 19 penetrates through the motor bracket 18 and the screening box 1 and is connected to the rotating shaft 8; a baffle 20 is rotatably connected to the inner wall of the feeding hopper 3. A swing rod 21 is rotatably connected to the outer wall of the feeding hopper 3, and the swing rod 21 penetrates through the side wall of the screening box 1 and is fixed to the baffle 20. An electric push rod 22 is rotatably connected to the side wall of the screening box 1, and the output end of the electric push rod 22 is rotatably connected to the swing rod 21.

[0027] The discharge hopper 6 and the sieve plate 5 are arranged at intervals. The vibration mechanism 4 and the discharge hopper 6 are symmetrically arranged about the middle plane of the sieve plate 5. The vibration spring 14 is arranged between the rotating shaft 8 and the sieve plate 5; the sieve plate 5 is arranged in a cuboid shape with an open top, and a number of through holes are evenly distributed at the bottom of the sieve plate 5. The discharge hopper 6 is arranged in a U-shaped plate shape, and the rotating ring 13 is arranged in an O-shaped shape; there are three groups of sieve plates 5, and the through holes at the bottom of the sieve plate 5 gradually decrease from top to bottom.

[0028] During specific use, the electric push rod 22 is turned on and extended to drive the swing rod 21 to rotate. Driven by the swing rod 21, the baffle 20 rotates open, and ore is poured into the screening box 1 through the feeding hopper 3. Under the action of gravity, the ore falls onto the sieve plate 5 and slides along the inclined direction of the sieve plate 5 towards the discharge hopper 6. During this process, the reduction motor 19 is turned on to drive the rotating shaft 8 to rotate, and the cam 10 provided on the rotating shaft 8 rotates at any time, so that the driving push rod 11 thereon makes regular reciprocating motions, thereby enabling the fixed plate 9 to push the sieve plate 5 to vibrate rapidly up and down. Under the transmission of the belt pulley 15, the transmission belt pulley 16 and the transmission belt 17, the three groups of sieve plates 5 can all vibrate, effectively separating the tightly clamped ore. During the screening process of the sieve plate 5, blockage of the through holes at the bottom of the sieve plate 5 can be avoided. Larger ore slides from the uppermost sieve plate 5 into the uppermost discharge hopper 6 and slides out, while smaller ore slides out from the middle group of sieve plates 5 and the discharge hopper 6, and the smallest ore slides out from the lowermost sieve plate 5 and the discharge hopper 6. Finally, the remaining dust and crushed stones are led out through the bottom of the screening box 1 from the discharge port 7. The above is the usage process of the entire mine exploitation and grading device.

[0029] The above describes the present utility model and its implementation manners. Such description is not restrictive, and what is shown in the drawings is only one of the implementation manners of the present utility model. The actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the creative concept of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A mining classification device, comprising a screening box (1), a support rod (2) and a feeding hopper (3), wherein the support rod (2) is fixed to the bottom of the screening box (1), and the feeding hopper (3) is arranged at one end of the upper side of the screening box (1), characterized in that: A vibration mechanism (4) is provided on the side wall of the screening box (1); a screen plate (5) is rotatably connected to the inner wall of the screening box (1), and the screen plate (5) is connected to the vibration mechanism (4); a discharge hopper (6) is provided on the side wall of the screening box (1); and a discharge port (7) is provided at the bottom of the screening box (1) on a side symmetrical to the discharge hopper (6); The vibration mechanism (4) comprises a rotating shaft (8), a fixed plate (9), a cam (10) and a driving push rod (11); the cam (10) is rotatably connected to the inner wall of the screening box (1) and is arranged below the sieve plate (5); the fixed plate (9) is fixed to the middle of the bottom of one side of the sieve plate (5); the cam (10) is fixed to the end of the fixed plate (9) and is arranged below the fixed plate (9); one end of the driving push rod (11) is rotatably connected to the cam (10), and the other end of the driving push rod (11) is rotatably connected to the fixed plate (9); A baffle (20) is rotatably connected to the inner wall of the feeding hopper (3), a swing rod (21) is rotatably connected to the outer wall of the feeding hopper (3), and the swing rod (21) penetrates the side wall of the screening box (1) and is fixedly connected to the baffle (20), an electric push rod (22) is rotatably connected to the side wall of the screening box (1), and the output end of the electric push rod (22) is rotatably connected to the swing rod (21).

2. A mining classification device according to claim 1, characterized in that: A limit ring (12) is fixed on the rotating shaft (8), a rotating ring (13) is rotatably connected to the limit ring (12), a vibration spring (14) is provided on the rotating ring (13), and the other end of the vibration spring (14) is connected to the bottom of the sieve plate (5).

3. A mining classification device according to claim 2, characterized in that: The rotating shafts (8) are provided with six groups, and the six groups of rotating shafts (8) are symmetrically distributed about the middle plane where the driving push rod (11) is located. A pulley (15) is rotatably connected to the side wall of the screening box (1) and is connected to the two groups of rotating shafts (8) on the upper side. A transmission pulley (16) is fixedly connected to the outer side of the lower group of pulleys (15), and a transmission belt (17) is connected to the lowermost group of rotating shafts (8). A transmission belt (17) is respectively connected between the pulley (15) and the transmission pulley (16).

4. A mining classification device according to claim 3, characterized in that: A motor bracket (18) is fixed on one side of the screening box (1) symmetrical to the pulley (15), and a reduction motor (19) is provided on the motor bracket (18). The output shaft of the reduction motor (19) passes through the motor bracket (18) and the screening box (1) and is connected to the rotating shaft (8).

5. A mining classification device according to claim 4, characterized in that: The discharge hopper (6) and the sieve plate (5) are arranged in an interlaced manner, the vibration mechanism (4) and the discharge hopper (6) are arranged symmetrically with respect to the middle plane of the sieve plate (5), and the vibration spring (14) is arranged between the rotating shaft (8) and the sieve plate (5).

6. A mining classification device according to claim 5, characterized in that: The sieve plate (5) is in the form of a rectangular parallelepiped with an open top, and a plurality of through holes are evenly distributed on the bottom of the sieve plate (5). The discharge hopper (6) is in the form of a U-shaped plate, and the rotating ring (13) is in the form of an O-shaped plate.

7. A mining classification device according to claim 6, characterized in that: The sieve plates (5) are provided in three groups, and the through holes at the bottom of the sieve plates (5) gradually decrease in size from top to bottom.

Images