Coal mine sorting device

Abstract

The utility model relates to the technical field of coal mine sorting, in particular to a coal mine sorting device which comprises a mounting frame, a screen drum is rotatably arranged at the top of the mounting frame, the top of the mounting frame is obliquely arranged, the turnup end of the screen drum is a feeding port, the other end of the screen drum is a discharging port, and a material scattering assembly is arranged at the end, corresponding to the discharging port of the screen drum, of the mounting frame. A driving assembly used for controlling the screen drum to rotate is arranged on the mounting frame, and a feeding hopper is fixedly mounted on the side, corresponding to a feeding port of the screen drum, of the mounting frame. Through the arrangement of the material scattering assembly and the cooperation between a gear and a gear ring, the screen drum can drive a spiral blade shaft to rotate, so that materials are turned over through the spiral blade shaft, the situation that the materials are caked or stacked together to affect the screening effect is avoided, the screen drum can drive a brush roller to rotate, mesh holes of the screen drum are cleaned through the brush roller, and the screening efficiency is improved. Long-term contact between the brush roller and the screen drum is not needed; the problem that the bristles are seriously abraded due to the fact that the bristles make unnecessary contact with the screen drum for a long time is effectively solved.

Description

Technical Field

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

[0002] Coal sorting is the process of separating useful materials from unusable materials in coal through physical or mechanical methods. This process is crucial for improving coal quality, meeting the needs of different users, and protecting the environment.

[0003] There are many methods for coal sorting, including gravity sorting (such as jigging, heavy medium cyclone), flotation, screening and wind sorting. In order to obtain materials with a certain range of particle sizes, a small amount of larger materials needs to be screened out, which requires the use of a screening machine. The most commonly used screening device in coal mines is the drum screen.

[0004] A double-layer cooling drum screen is disclosed in Chinese patent publication number CN221046568U. In this double-layer cooling drum screen, two dredging brushes will brush on drum screen one and drum screen two respectively, and the sand stuck in the screen holes can be swept down, so that the screening efficiency of the two can be maintained continuously.

[0005] However, compared with the existing technology in the related field, since the dredge brush maintains contact with the drum screen for a long time, the bristles of the dredge brush are easily worn due to long-term friction, resulting in a short service life of a single dredge brush, thereby losing its cleaning ability. Once the dredge brush is not replaced in time, the screening efficiency will continue to decrease with the increase of usage time. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a coal mine sorting device.

[0007] The object of the utility model is to achieve the following technical scheme: a coal mine sorting device comprises a mounting frame, the top of the mounting frame is rotatably provided with a screen drum, the top of the mounting frame is inclined, one end of the screen drum is tilted as a feed inlet and the other end is a discharge outlet, a material discharging assembly is provided on the mounting frame corresponding to the screen drum discharge outlet, a driving assembly for controlling the rotation of the screen drum is provided on the mounting frame, and a feed hopper is fixedly installed on one side of the mounting frame corresponding to the screen drum feed inlet; the material discharging assembly comprises a frame fixedly mounted on the mounting frame

[0008] Preferably, the drive assembly includes supports symmetrically fixedly mounted on both sides of the top of the mounting frame, the two supports along the axial centerline of the screen drum are connected by a rotating shaft, the outer surface of the rotating shaft is fixedly provided with rollers, the mounting frame is located below the feed hopper and is fixedly installed with a drive motor and a differential, the output end of the drive motor is connected to the input end of the differential, and the output end of the differential is connected to one of the rotating shafts.

[0009] Preferably, a flexible layer is fixedly provided on the outer surface of the roller, and the flexible layer of the roller is in contact with the screen drum.

[0010] Preferably, a slider is fixedly provided at one end of the movable column close to the frame, a sliding groove is provided at a position of the frame corresponding to the slider, and the slider and the sliding groove are cooperatively connected by an elastic member.

[0011] Preferably, the transmission assembly includes a gear ring fixedly mounted on the inner wall of the screen drum, the gear ring is arranged at the feed port of the screen drum, and gears are fixedly provided at the positions of the brush roller and the spiral blade shaft corresponding to the gear ring, and both gears are adapted to the gear ring.

[0012] Preferably, the ends of the mounting plate corresponding to the brush roller and the spiral blade shaft are provided with rotation holes, and the brush roller and the spiral blade shaft are connected to the rotation holes through bearings.

[0013] Beneficial effects:

[0014] The coal mine sorting device is provided with a material discharging component. When the screen drum is not blocked, the gear and the gear ring are used to cooperate with each other to allow the screen drum to drive the spiral blade shaft to rotate, thereby using the spiral blade shaft to turn over the material to prevent the material from clumping or piling up and affecting the screening effect. When the screen drum is seriously blocked, the gear and the gear ring are used to cooperate with each other to allow the screen drum to drive the brush roller to rotate, thereby using the brush roller to clean the mesh of the screen drum to avoid long-term blockage of the mesh of the screen drum. At the same time, there is no need for the brush roller to be in contact with the screen drum for a long time, which effectively increases the service life of a single brush roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a schematic diagram of the first axis side of the mounting bracket of the utility model;

[0017] Figure 2 This is a schematic diagram of the second axis side of the mounting bracket of the present invention;

[0018] Figure 3 This is a schematic diagram of the first axis side of the screen drum when the spiral blade shaft and the screen drum are matched;

[0019] Figure 4 This is a schematic diagram of the second axis side of the screen drum when the spiral blade shaft and the screen drum are matched;

[0020] Figure 5 This is a schematic diagram of the first axis side of the screen drum when the brush roller and the screen drum are matched;

[0021] Figure 6 This is a schematic diagram of the second axis side of the screen drum when the brush roller and the screen drum are matched;

[0022] Figure 7 It is a structural diagram of the material dispersing component and the transmission component of the utility model.

[0023] In the figure: 1. Mounting frame; 2. Screen drum; 3. Material discharging assembly; 31. Frame; 311. Slide; 32. Movable column; 321. Slider; 322. Elastic member; 33. Mounting plate; 34. Brush roller; 35. Spiral blade shaft; 4. Drive assembly; 41. Support; 42. Rotating shaft; 43. Roller; 44. Drive motor; 45. Differential; 5. Feed hopper; 6. Transmission assembly; 61. Ring gear; 62. Gear. DETAILED DESCRIPTION

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0026] like Figures 1 to 7 As shown, a coal mine sorting device includes a mounting frame 1, a screen drum 2 is rotatably provided on the top of the mounting frame 1, the top of the mounting frame 1 is inclined, one end of the screen drum 2 is tilted as a feed port and the other end is a discharge port, a material discharge component 3 is provided at one end of the mounting frame 1 corresponding to the discharge port of the screen drum 2, a driving component 4 for controlling the rotation of the screen drum 2 is provided on the mounting frame 1, and a feed hopper 5 is fixedly installed on one side of the mounting frame 1 corresponding to the feed port of the screen drum 2.

[0027] like Figure 1 and Figure 7 As shown, the material dispersing assembly 3 includes a frame 31 fixedly mounted on the mounting frame 1, and a movable column 32 is longitudinally slidably provided at the center of the frame 31 corresponding to the sieve drum 2. Two mounting plates 33 are symmetrically fixed on the outer surface of the movable column 32. A brush roller 34 is rotatably provided on the mounting plate 33 above the movable column 32, and a spiral blade shaft 35 is rotatably provided on the mounting plate 33 below the movable column 32. The brush roller 34 and the spiral blade shaft 35 are connected to the sieve drum 2 through a transmission assembly 6, as shown in FIG. Figures 3 to 6 As shown, when the screen drum 2 is not blocked, the spiral blade shaft 35 fits with the screen drum 2 ; when the screen drum 2 is seriously blocked, the brush roller 34 fits with the screen drum 2 and cleans the mesh of the screen drum 2 .

[0028] like Figure 7 As shown, the transmission assembly 6 includes a gear ring 61 fixedly mounted on the inner wall of the screen drum 2. The gear ring 61 is arranged at the feed port of the screen drum 2. Gears 62 are fixedly provided at the positions of the brush roller 34 and the spiral blade shaft 35 corresponding to the gear ring 61. Both gears 62 are adapted to the gear ring 61.

[0029] like Figure 1 and Figure 2 As shown, the drive assembly 4 includes supports 41 symmetrically fixedly mounted on both sides of the top of the mounting frame 1, and the two supports 41 along the axial centerline direction of the screen drum 2 are connected by a rotating shaft 42, and the outer surface of the rotating shaft 42 is fixedly provided with a roller 43. The mounting frame 1 is located below the feed hopper 5 and is fixedly installed with a drive motor 44 and a differential 45. The output end of the drive motor 44 is connected to the input end of the differential 45, and the output end of the differential 45 is connected to one of the rotating shafts 42. The outer surface of the roller 43 is fixedly provided with a flexible layer, and the flexible layer of the roller 43 fits the screen drum 2.

[0030] like Figures 3 to 7 As shown, when the screen drum 2 is not blocked, the gear 62 of the spiral blade shaft 35 is engaged with the ring gear 61, and then the spiral blade shaft 35 is fitted with the screen drum 2. At this time, the cooperation between the gear 62 and the ring gear 61 is utilized to allow the screen drum 2 to drive the spiral blade shaft 35 to rotate, thereby utilizing the spiral blade shaft 35 to turn over the material (coal material) to prevent the material (coal material) from agglomerating or piling up to affect the screening effect. When the screen drum 2 falls, the gear 62 of the brush roller 34 is engaged with the ring gear 61, and then the cooperation between the gear 62 and the ring gear 61 is utilized to allow the screen drum 2 to drive the brush roller 34 to rotate, thereby utilizing the brush roller 34 to clean the mesh of the screen drum 2 to avoid long-term blockage of the mesh of the screen drum 2. At the same time, there is no need for the brush roller 34 to be in contact with the screen drum 2 for a long time, which effectively improves the service life of a single brush roller 34.

[0031] As an optimal technical solution of the present invention, the mounting plate 33 is provided with rotation holes at the ends corresponding to the brush roller 34 and the spiral blade shaft 35. The brush roller 34 and the spiral blade shaft 35 are both connected to the rotation holes through bearings. The above-mentioned bearings can reduce the friction force of the brush roller 34 and the spiral blade shaft 35 during rotation, thereby improving the stability of the brush roller 34 and the spiral blade shaft 35 during operation.

[0032] Example 2:

[0033] like Figure 5 As shown, a slider 321 is fixedly provided at one end of the movable column 32 close to the frame 31 , and a slide groove 311 is provided at a position of the frame 31 corresponding to the slider 321 , and the slider 321 and the slide groove 311 are connected by an elastic member 322 .

[0034] like Figures 3 to 7 As shown, when the screen drum 2 is clogged, the material accumulated inside the screen drum 2 will prompt the spiral blade shaft 35 to drive the mounting plate 33 and the movable column 32 to move upward (at this time, the elastic member 322 is compressed by the slider 321), so that the gear 62 of the brush roller 34 is engaged with the ring gear 61, and then the gear 62 and the ring gear 61 are used to cooperate with each other to allow the screen drum 2 to drive the brush roller 34 to rotate, so that the brush roller 34 is used to clean the mesh of the screen drum 2, avoiding long-term clogging of the mesh of the screen drum 2. At the same time, there is no need for the brush roller 34 to be in contact with the screen drum 2 for a long time. The service life of a single brush roller 34 is effectively improved. When the screen drum 2 is unblocked, the elastic member 322 can be used to allow the movable column 32 to drive the mounting plate 33 and the spiral blade shaft 35 to reset, and then the gear 62 of the spiral blade shaft 35 is engaged with the ring gear 61, and then the spiral blade shaft 35 is fitted with the screen drum 2. At this time, the coordination between the gear 62 and the ring gear 61 is used to allow the screen drum 2 to drive the spiral blade shaft 35 to rotate, thereby using the spiral blade shaft 35 to turn over the material (coal material) to prevent the material (coal material) from clumping or piling up and affecting the screening effect.

[0035] The drive assembly 4 and the bearing described in this application are well-known technologies in the technical field, so their specific structures and working principles are not described in detail.

[0036] The working process is as follows:

[0037] S1. When in use, the differential 45 is controlled by the driving motor 44 to operate, and the differential 45 drives one of the rotating shafts 42 to rotate. At this time, the roller 43 on the rotating shaft 42 drives the screen drum 2 to rotate;

[0038] S2. When the screen drum 2 rotates, the material (coal material) can be added from the feed hopper 5 to the screen drum 2, so that the screen drum 2 can be used to screen the material (coal material);

[0039] S3. When the screen drum 2 is not blocked, the gear 62 of the spiral blade shaft 35 is meshed with the gear ring 61, and then the spiral blade shaft 35 is fitted with the screen drum 2. At this time, the gear 62 and the gear ring 61 cooperate with each other to allow the screen drum 2 to drive the spiral blade shaft 35 to rotate, thereby using the spiral blade shaft 35 to turn over the material (coal material), thereby preventing the material (coal material) from agglomerating or piling up and affecting the screening effect;

[0040] S4. When the screen drum 2 is seriously clogged, the weight of the screen drum 2 gradually increases, and then the flexible layer on the outer surface of the roller 43 is deformed under the influence of gravity, causing the screen drum 2 to fall;

[0041] S5. When the screen drum 2 falls, the gear 62 of the brush roller 34 meshes with the ring gear 61, and then the screen drum 2 drives the brush roller 34 to rotate by utilizing the cooperation between the gear 62 and the ring gear 61, so that the mesh of the screen drum 2 is cleaned by the brush roller 34, avoiding long-term blockage of the mesh of the screen drum 2. At the same time, there is no need for the brush roller 34 to contact with the screen drum 2 for a long time, which effectively improves the service life of a single brush roller 34.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A coal mine sorting device, characterized by: The invention comprises a mounting frame (1), a sieve drum (2) is rotatably provided on the top of the mounting frame (1), the top of the mounting frame (1) is tilted, one end of the tilted sieve drum (2) is a feed port and the other end is a discharge port, a material discharging assembly (3) is provided on one end of the mounting frame (1) corresponding to the discharge port of the sieve drum (2), a driving assembly (4) for controlling the rotation of the sieve drum (2) is provided on the mounting frame (1), and a feed hopper (5) is fixedly installed on one side of the mounting frame (1) corresponding to the feed port of the sieve drum (2); The material dispersing assembly (3) comprises a frame (31) fixedly mounted on the mounting frame (1), the frame (31) is provided with a movable column (32) which is longitudinally slidable corresponding to the center of the screen drum (2), the outer surface of the movable column (32) is symmetrically fixed with two mounting plates (33), a brush roller (34) is rotatably provided on the mounting plate (33) located above the movable column (32), and a spiral blade shaft (35) is rotatably provided on the mounting plate (33) located below the movable column (32), the brush roller (34) and the spiral blade shaft (35) are connected to the screen drum (2) through a transmission assembly (6), when the screen drum (2) is not blocked, the spiral blade shaft (35) is in contact with the screen drum (2), and when the screen drum (2) is seriously blocked, the brush roller (34) is in contact with the screen drum (2) and cleans the mesh of the screen drum (2).

2. A coal sorting device according to claim 1, characterized in that: The driving assembly (4) includes supports (41) symmetrically fixedly mounted on both sides of the top of the mounting frame (1), and the two supports (41) along the axis of the screen drum (2) are connected via a rotating shaft (42), and the outer surface of the rotating shaft (42) is fixedly provided with a roller (43). The mounting frame (1) is located below the feed hopper (5) and is fixedly mounted with a driving motor (44) and a differential (45), the output end of the driving motor (44) is connected to the input end of the differential (45), and the output end of the differential (45) is connected to one of the rotating shafts (42).

3. A coal sorting device according to claim 2, characterized in that: A flexible layer is fixedly provided on the outer surface of the roller (43), and the flexible layer of the roller (43) is in contact with the screen drum (2).

4. A coal sorting device according to claim 1, characterized in that: A slider (321) is fixedly provided at one end of the movable column (32) close to the frame (31); a slide groove (311) is provided on the frame (31) at a position corresponding to the slider (321); and the slider (321) and the slide groove (311) are connected by an elastic member (322).

5. A coal sorting device according to claim 1, characterized in that: The transmission assembly (6) comprises a gear ring (61) fixedly mounted on the inner wall of the screen drum (2); the gear ring (61) is arranged at the feed port of the screen drum (2); the brush roller (34) and the spiral blade shaft (35) are both fixedly provided with gears (62) at positions corresponding to the gear ring (61); and the two gears (62) are both adapted to the gear ring (61).

6. A coal sorting device according to claim 1, characterized in that: The mounting plate (33) is provided with rotation holes at the ends corresponding to the brush roller (34) and the spiral blade shaft (35), and the brush roller (34) and the spiral blade shaft (35) are both connected to the rotation holes through bearings.

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