Coal gangue screening device

Abstract

The utility model discloses a coal gangue screening device, and relates to the technical field of coal gangue screening, the coal gangue screening device comprises a fixing frame and two covering plates, the two covering plates are both fixedly arranged on the side wall of the fixing frame, a plurality of screening barrels are arranged in the fixing frame, a plurality of first screening grooves are formed in the side wall of each screening barrel, and a plurality of second screening grooves are formed in the side wall of each screening barrel. A second screening groove is formed in the side wall of each screening barrel, and a plurality of turning plates are fixedly arranged on the rod wall of each rotating rod. According to the coal gangue screening device, the multiple screening barrels and the multiple turning plates are arranged, the driving mechanism can drive the multiple turning plates to rotate in a reciprocating mode, then coal gangue in the multiple screening barrels can be turned in a reciprocating mode, and the screening efficiency is improved; and when the rotating rod rotates, the multiple screening barrels can be driven by the transmission mechanism to swing in a reciprocating mode at a certain angle, so that the contact area between the coal gangue and the multiple first screening grooves can be increased, and the screening efficiency of the coal gangue is further improved.

Description

[0001] The utility model relates to the technical field of coal gangue screening, in particular to a coal gangue screening device. Background Art

[0002] Coal gangue is solid waste discharged during coal mining and coal washing. It is a kind of black-gray rock with low carbon content and harder than coal that is associated with coal seams during the coal formation process. Coal gangue can be used to make hollow bricks. Before using it, it needs to be screened with a raw material screening machine.

[0003] After searching, a raw material screening device for producing hollow coal gangue bricks with publication number CN216911007U is found, which includes a screening box, a feed hopper is provided at the upper end of the screening box, a discharge port is provided at the bottom of the screening box, a discharge plate is provided inside the screening box, and a screen mechanism is provided above the discharge plate.

[0004] However, the existing raw material screening device for producing hollow gangue bricks has certain drawbacks when in use. Although the device can smoothly screen a large amount of gangue, the gangue is prone to accumulation on the surface of the screen, resulting in some smaller gangue being mixed in a large amount of gangue, which will reduce the screening efficiency. In addition, it is difficult to spread the gangue fully and evenly on the surface of the screen, which not only reduces the utilization rate of the screen, but also makes it difficult to improve the screening efficiency. Utility Model Content

[0005] In view of the problems existing in the existing raw material screening device for producing hollow gangue bricks, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a coal gangue screening device, which solves the problem that although the device can smoothly screen a large amount of coal gangue, the coal gangue is easy to accumulate on the surface of the screen, resulting in some smaller coal gangue being mixed in the interior of a large amount of coal gangue, which will lead to reduced screening efficiency, and the coal gangue is difficult to spread fully and evenly on the surface of the screen, which not only has a low utilization rate of the screen, but also is difficult to improve the screening efficiency.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A coal gangue screening device comprises a fixed frame and two cover plates, the two cover plates are fixedly arranged on the side walls of the fixed frame, a plurality of screening cylinders are arranged inside the fixed frame, a plurality of first screening slots are opened on the side walls of each screening cylinder, a second screening slot is opened on the side walls of each screening cylinder, a rotating rod is rotatably connected to the inner wall of each screening cylinder, a plurality of flip plates are fixedly arranged on the rod wall of each rotating rod, a driving mechanism is arranged on the side wall of one of the cover plates, each rotating rod is matched with the driving mechanism, a transmission mechanism is arranged on the side wall of the other cover plate, each screening cylinder is matched with the transmission mechanism, and the driving mechanism and the transmission mechanism are connected through the driving mechanism.

[0009] Preferably, the driving mechanism includes two fixed plates, a motor, a worm and a plurality of worm gears, the two fixed plates are fixedly arranged on the side walls of the corresponding cover plates, the motor is fixedly arranged on the side walls of the corresponding fixed plates, the worm is rotatably arranged between the two fixed plates, one end of the worm passes through the corresponding fixed plate and is fixedly connected to the output shaft of the motor, both ends of each of the rotating rods pass through the corresponding screening cylinder and the cover plate and are rotatably connected to the corresponding screening cylinder and the cover plate, the plurality of worm gears are respectively fixedly sleeved on one end rod wall of the corresponding rotating rod, and each of the worm gears is meshingly connected to the worm.

[0010] Preferably, the transmission mechanism includes a plurality of first gears and a plurality of second gears, a connecting rod is fixedly provided on the inner wall of each screening cylinder, each connecting rod passes through the corresponding screening cylinder and the cover plate and is rotatably connected to the corresponding screening cylinder and the cover plate, a plurality of the first gears are respectively fixedly sleeved on the other end rod wall of the corresponding rotating rod, a plurality of the second gears are respectively fixedly sleeved on the rod wall of the corresponding connecting rod, and every two adjacent first gears and second gears are meshingly connected.

[0011] Preferably, a storage box is placed on the inner wall of the fixed frame, and each of the screening cylinders is arranged above the storage box.

[0012] Preferably, the inner wall of the storage box is provided with two slots, and a partition is clamped between the two slots.

[0013] Preferably, a support plate is fixedly provided on the inner wall of the fixed frame, and each of the screening cylinders is rotatably sleeved inside the support plate.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The utility model, through the provision of multiple screening cylinders and multiple flip plates, the driving mechanism can drive the multiple flip plates to rotate reciprocatingly, and then can flip the coal gangue inside the multiple screening cylinders reciprocatingly, thereby improving the screening efficiency. When the rotating rod rotates, it can drive the multiple screening cylinders to swing reciprocatingly at a certain angle through the transmission mechanism, thereby increasing the contact area between the coal gangue and the multiple first screening slots, and further improving the screening efficiency of the coal gangue.

[0016] 2. The utility model, through the setting of the driving cabinet, the driving mechanism includes two fixed plates, a motor, a worm and a plurality of worm wheels. The motor is a forward and reverse motor. The motor drives the worm to rotate forward and reversely at an angle not exceeding 45°. When the worm rotates, it can drive a plurality of worm wheels and a plurality of rotating rods to rotate. When the plurality of rotating rods rotate, it can drive a plurality of flip plates to rotate synchronously, thereby ensuring that the plurality of flip plates can smoothly flip the corresponding coal gangue inside the screening cylinder.

[0017] 3. The utility model sets up a transmission mechanism, which includes multiple first gears and multiple second gears. When the multiple rotating rods rotate forward and reversely, they can drive the corresponding first gears to rotate synchronously. When the first gear rotates, it can drive the corresponding second gears and the connecting rod to rotate synchronously, thereby realizing the reciprocating swing of multiple screening drums, increasing the contact area between the coal gangue and the first screening slot, and improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 For the utility model Figure 1 A schematic cross-sectional structure diagram of ;

[0021] Figure 3 For the utility model Figure 1 Rear view of

[0022] Figure 4 For the utility model Figure 2 Enlarged view of part A.

[0023] Description of reference numerals:

[0024] 1. Fixed frame; 2. Cover plate; 3. Screening cylinder; 4. Rotating rod; 5. Flipping plate; 6. Fixed plate; 7. Motor; 8. Worm; 9. Worm wheel; 10. First gear; 11. Second gear; 12. Connecting rod; 13. Storage box; 14. Partition; 15. Support plate. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model embodiment discloses a coal gangue screening device.

[0027] The utility model provides Figure 1-4 A coal gangue screening device shown in the figure includes a fixed frame 1 and two cover plates 2, the two cover plates 2 are fixedly arranged on the side walls of the fixed frame 1, a plurality of screening cylinders 3 are arranged inside the fixed frame 1, the side walls of each screening cylinder 3 are provided with a plurality of first screening slots, the side walls of each screening cylinder 3 are provided with a second screening slot, the inner wall of each screening cylinder 3 is rotatably connected with a rotating rod 4, the rod wall of each rotating rod 4 is fixedly provided with a plurality of flip plates 5, the side wall of one of the cover plates 2 is provided with a driving mechanism, each rotating rod 4 is matched with the driving mechanism, the side wall of the other cover plate 2 is provided with a transmission mechanism, each screening cylinder 3 is matched with the transmission mechanism, and the driving mechanism and the transmission mechanism are connected through the driving mechanism.

[0028] In order to ensure that the plurality of turning plates 5 can smoothly turn over the gangue inside the corresponding screening cylinder 3, as shown in FIG. Figure 1-4 As shown, the driving mechanism includes two fixed plates 6, a motor 7, a worm 8 and a plurality of worm wheels 9. The two fixed plates 6 are fixedly arranged on the side walls of the corresponding cover plates 2. The motor 7 is fixedly arranged on the side walls of the corresponding fixed plates 6. The worm 8 is rotatably arranged between the two fixed plates 6. One end of the worm 8 passes through the corresponding fixed plate 6 and is fixedly connected to the output shaft of the motor 7. Both ends of each rotating rod 4 pass through the corresponding screening drum 3 and the cover plate 2 and are rotatably connected to the corresponding screening drum 3 and the cover plate 2. A plurality of worm wheels 9 are fixedly sleeved on one end rod wall of the corresponding rotating rod 4, and each worm wheel 9 is meshed with the worm 8.

[0029] In order to realize the reciprocating swing of the multiple screening drums 3, the contact area between the gangue and the first screening slot is increased, and the screening efficiency is improved. Figure 1-4As shown, the transmission mechanism includes a plurality of first gears 10 and a plurality of second gears 11, a connecting rod 12 is fixedly provided on the inner wall of each screening cylinder 3, each connecting rod 12 passes through the corresponding screening cylinder 3 and the cover plate 2 and is rotatably connected to the corresponding screening cylinder 3 and the cover plate 2, a plurality of first gears 10 are respectively fixedly sleeved on the other end rod wall of the corresponding rotating rod 4, a plurality of second gears 11 are respectively fixedly sleeved on the rod wall of the corresponding connecting rod 12, and every two adjacent first gears 10 and second gears 11 are meshedly connected.

[0030] In order to collect the coal gangue dropped by screening, Figure 1-3 As shown, a storage box 13 is placed on the inner wall of the fixed frame 1 , and each screening cylinder 3 is arranged above the storage box 13 .

[0031] In order to collect the larger coal gangue, Figure 1-3 As shown, the inner wall of the storage box 13 is provided with two slots, and a partition plate 14 is clamped between the two slots.

[0032] Finally, in order to support the multiple screening drums 3 and ensure that the multiple screening drums 3 can swing stably, Figure 1-3 As shown, a support plate 15 is fixedly provided on the inner wall of the fixed frame 1 , and each screening cylinder 3 is rotatably sleeved inside the support plate 15 .

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coal gangue screening device, comprising a fixed frame (1) and two cover plates (2), characterized in that: The two cover plates (2) are fixedly arranged on the side walls of the fixed frame (1); a plurality of screening cylinders (3) are arranged inside the fixed frame (1); a plurality of first screening slots are opened on the side wall of each screening cylinder (3); a second screening slot is opened on the side wall of each screening cylinder (3); a rotating rod (4) is rotatably connected to the inner wall of each screening cylinder (3); a plurality of flip plates (5) are fixedly arranged on the rod wall of each rotating rod (4); a driving mechanism is arranged on the side wall of one of the cover plates (2); each rotating rod (4) is matched with the driving mechanism; a transmission mechanism is arranged on the side wall of the other cover plate (2); each screening cylinder (3) is matched with the transmission mechanism; the driving mechanism and the transmission mechanism are connected through the driving mechanism.

2. A coal gangue screening device according to claim 1, characterized in that: The driving mechanism comprises two fixed plates (6), a motor (7), a worm (8) and a plurality of worm wheels (9); the two fixed plates (6) are fixedly arranged on the side walls of the corresponding cover plates (2); the motor (7) is fixedly arranged on the side walls of the corresponding fixed plates (6); the worm (8) is rotatably arranged between the two fixed plates (6); one end of the worm (8) passes through the corresponding fixed plate (6) and is fixedly connected to the output shaft of the motor (7); both ends of each rotating rod (4) pass through the corresponding screening drum (3) and the cover plate (2) and are rotatably connected to the corresponding screening drum (3) and the cover plate (2); the plurality of worm wheels (9) are respectively fixedly sleeved on one end of the rod wall of the corresponding rotating rod (4); and each worm wheel (9) is meshingly connected to the worm (8).

3. A coal gangue screening device according to claim 1, characterized in that: The transmission mechanism comprises a plurality of first gears (10) and a plurality of second gears (11); a connecting rod (12) is fixedly provided on the inner wall of each screening cylinder (3); each connecting rod (12) penetrates the corresponding screening cylinder (3) and the cover plate (2) and is rotatably connected to the corresponding screening cylinder (3) and the cover plate (2); a plurality of the first gears (10) are respectively fixedly sleeved on the other end rod wall of the corresponding rotating rod (4); a plurality of the second gears (11) are respectively fixedly sleeved on the rod wall of the corresponding connecting rod (12); and every two adjacent first gears (10) and second gears (11) are meshingly connected.

4. A coal gangue screening device according to claim 1, characterized in that: A storage box (13) is placed on the inner wall of the fixed frame (1), and each of the screening cylinders (3) is arranged above the storage box (13).

5. A coal gangue screening device according to claim 4, characterized in that: The inner wall of the storage box (13) is provided with two slots, and a partition (14) is clamped between the two slots.

6. The coal gangue screening device according to claim 1, characterized in that: A support plate (15) is fixedly provided on the inner wall of the fixed frame (1), and each of the screening cylinders (3) is rotatably sleeved inside the support plate (15).

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