A screening device for coal gangue slurry filling material ball mill discharge

Abstract

The present invention belongs to the field of stone screening, and in particular, relates to a screening device for ball mill discharge of coal gangue slurry filling material, comprising a mounting frame, screening mechanisms are movably arranged at both ends of the upper part of the mounting frame, and a driving mechanism capable of driving the screening mechanism to move left and right is commonly connected between the mounting frame and the two screening mechanisms, and a feeding mechanism is arranged below the mounting frame, and a feeding mechanism is arranged on either side of the front and rear of the mounting frame. The screening mechanism comprises a screening frame with a moving wheel at the bottom, the lower part of the screening frame is densely covered with screening holes, and a plurality of first guide seats with one end being an arc surface structure are fixedly arranged on the inner walls on both sides of the left and right sides of the screening frame. The present invention can make the material move continuously along a predetermined screening path accompanied by continuous vibration, which helps to shorten the screening time of coal gangue material particles and facilitate the discharge of larger coal gangue material particles that have been intercepted, thereby reducing the risk of blockage and improving the screening efficiency.

Description

Technical Field

[0001] The invention belongs to the field of stone screening, and in particular relates to a screening device for ball mill discharge of coal gangue slurry filler. Background Art

[0002] Gangue slurry filler is a slurry made from the by-product of coal mining. It is used for mine filling or other engineering purposes.

[0003] In the production process of coal gangue slurry filler, it needs to be processed into very fine particles to ensure the fluidity of the slurry. Screening can ensure that all particles are within a certain particle size range to meet the requirements of subsequent processes. Therefore, the material after ball milling needs to be further screened.

[0004] At present, in the process of screening the materials after ball milling of coal gangue, since the objects of screening are materials with smaller particles, the diameter of the sieve holes used for screening is small, and blockage is easy to occur during the screening process; at the same time, the existing screen is usually installed at the lower discharge port of the ball mill. After the materials enter the screen and are screened, some of the larger particles intercepted on the screen will stay on the screen for a long time until they accumulate to a certain amount before being stopped for processing. This situation not only affects the screening of small-particle materials, but also requires frequent shutdowns for processing, which increases the workload and reduces the screening efficiency. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides a coal gangue slurry filler ball mill discharge screening device, which can make the material move continuously along a predetermined screening path accompanied by continuous vibration, which is helpful for screening smaller coal gangue material particles and facilitating the discharge of larger coal gangue material particles that have been intercepted, thereby reducing the risk of blockage and improving the screening efficiency of the coal gangue after ball milling.

[0006] In order to achieve the above-mentioned purpose, the embodiments of the present application provide the following technical solutions: The present invention provides a coal gangue slurry filler ball mill discharge screening device, comprising a mounting frame, wherein screening mechanisms are movably arranged at both left and right ends of the upper part of the mounting frame, and a driving mechanism capable of driving the screening mechanism to move left and right is commonly connected between the mounting frame and the two screening mechanisms, and a feeding mechanism is arranged below the mounting frame, and a unloading mechanism is arranged on either side of the front and rear of the mounting frame.

[0007] The screening mechanism includes a screening frame with a movable wheel at the bottom, the lower part of the screening frame is densely covered with screening holes, and a plurality of first guide seats with an arc surface structure at one end are fixedly arranged on the inner walls on the left and right sides of the screening frame, and the adjacent front and rear first guide seats are staggered left and right.

[0008] Guide plates are fixedly connected to both sides of the upper end of the mounting frame, and the lower end and surface of the guide plates are provided with obstacle bars with arcuate structures. A plurality of connecting plates are fixedly provided on the sides of the two screening frames away from each other, and guide rollers are rotatably provided on the connecting plates. A plurality of support rods are fixedly provided on the inner walls on both sides of the left and right sides of the upper end of the mounting frame, and the guide rollers are rollingly provided on the support rods.

[0009] According to a favorable embodiment, two first guide rails distributed left and right are fixedly provided on the front and rear sides of the upper part of the mounting frame, second guide rails corresponding to the first guide rails on the same side are fixedly provided on the front and rear ends of the guide plate, and the moving wheels at the bottom of the screening frame are rollingly set on the first guide rail and the second guide rail on the same side.

[0010] According to a favorable embodiment, two limit plates distributed left and right are fixedly provided on the front and rear sides of the upper part of the mounting frame, and a plurality of guide balls are movably provided on the surface of the limit plates, and the guide balls are in rolling contact with the front and rear outer walls of the screening frame.

[0011] According to a favorable embodiment, the driving mechanism includes two mounting plates fixedly arranged on the front and rear sides of the upper end of the mounting frame, a screw rod is rotatably arranged on the mounting plate, a driving seat is commonly threadedly connected to the two screw rods, a plurality of linkage plates are hinged on the left and right sides of the driving seat, the linkage plate is hinged to the corresponding screening frame at one end away from the driving seat, the lower ends of the two screw rods are commonly connected through a sprocket group, and a first motor is fixedly arranged on the upper part of any one of the mounting blocks, and the output shaft of the first motor is connected to the lower end of the adjacent screw rod through a gear group.

[0012] According to a favorable embodiment, a plurality of brush rollers are rotatably provided at the upper end of the mounting frame, the brush surfaces of the brush rollers are movably abutted against the lower portion of the screening frame, the plurality of brush rollers are divided into two groups and symmetrically provided at the left and right ends of the mounting frame, and a linkage assembly is provided between the plurality of brush rollers in the same group and the driving mechanism.

[0013] According to a favorable embodiment, the linkage assembly includes a turntable fixedly connected to the output shaft of the first motor via a rotating shaft, a positioning pin is fixedly provided at the lower edge position of the turntable, two connecting rods are movably sleeved on the positioning pin, the end of the connecting rod away from the turntable is rotatably connected to a tooth plate, a transmission gear is fixedly provided at the end of the brush roller close to the tooth plate, the transmission gear is meshed with the corresponding tooth plate below, two second guide seats are fixedly provided on the side of the mounting frame close to the tooth plate, and the tooth plate is slidably provided on the side of the second guide seat away from the mounting frame.

[0014] According to a favorable embodiment, a screening channel is formed between the multiple first guide seats and the interior of the screening frame, and the end of the screening channel close to the unloading mechanism is set as a feeding area, the ends of the left and right feeding areas away from each other are set as curved surface structures, and a discharge port is opened at the lower part of the end of the screening channel away from the unloading mechanism.

[0015] According to a favorable embodiment, the feeding mechanism includes a conveying platform arranged below the mounting frame, a plurality of conveying rollers are rotatably arranged on the conveying platform, a conveyor belt is sleeved between the plurality of conveying rollers, a second motor is fixedly arranged on either side of the conveying platform, and an output shaft of the second motor is fixedly connected to the corresponding conveying roller.

[0016] According to a preferred embodiment, the surface of the conveyor belt is also fixedly provided with an isolation baffle, which divides the surface of the conveyor belt into a first conveying area for conveying small particle materials and a second conveying area for conveying large particle materials, and the discharge port is located above the second conveying area.

[0017] According to a favorable embodiment, the unloading mechanism includes a receiving bin arranged near the feeding area, and two storage chambers are arranged inside the receiving bin. The lower parts of the two storage chambers are fixedly connected to a material delivery pipe, and an electric control valve is arranged on the material delivery pipe.

[0018] Compared with the prior art, a coal gangue slurry filler ball mill discharge screening device provided in an embodiment of the present invention has the following beneficial effects: 1. The driving mechanism provided in the present invention can drive the screening mechanism to cooperate with the guide plate, so that the screening mechanism can move left and right and can cyclically switch between horizontal and inclined states, so that the material in the screening frame is constantly moved, which is helpful for material screening. At the same time, the screening frame can vibrate in cooperation with the obstacle bar on the guide plate during the movement, thereby promoting the material to pass through the screening holes at the bottom of the screening frame, greatly reducing the risk of blockage.

[0019] 2. A screening channel is formed inside the screening frame arranged in the present invention through multiple first guide seats, which not only extends the screening path of the material on the screen, so that the material can be fully screened, but also can automatically discharge the intercepted larger coal gangue particles from the screening frame when the screening frame is continuously switched between the inclined and horizontal states, without the need for subsequent shutdown to take materials, thereby fully screening and improving the screening efficiency.

[0020] 3. The brush roller provided in the present invention can continuously rotate below the screening frame with the cooperation of the linkage assembly, and the screening holes at the bottom of the screening frame are cleared by the brush roller, thereby further reducing the risk of clogging of the screening frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall three-dimensional structure diagram of the present invention.

[0022] Figure 2 It is an overall top plan structural diagram of the present invention.

[0023] Figure 3 It is a first-perspective stereoscopic structural diagram of the driving mechanism and the screening mechanism in the present invention.

[0024] Figure 4 It is a second perspective stereoscopic structural diagram of the driving mechanism and the screening mechanism in the present invention.

[0025] Figure 5 It is a third-angle stereoscopic structural diagram of the driving mechanism and the screening mechanism in the present invention.

[0026] Figure 6 It is a bottom plan view of the driving mechanism and the screening mechanism in the present invention.

[0027] Figure 7 It is a front view plan view of the driving mechanism and the screening mechanism in the present invention.

[0028] Figure 8 It is an external three-dimensional structural diagram of the screening frame in the present invention.

[0029] Reference numerals in the figure: 1, mounting frame; 2, screening mechanism; 201, screening frame; 202, moving wheel; 203, first guide seat; 204, guide roller; 3, driving mechanism; 301, mounting plate; 302, screw; 303, driving seat; 304, linkage plate; 305, first motor; 4, feeding mechanism; 401, conveying platform; 402, conveying belt; 403, second motor; 5, unloading mechanism; 501, receiving bin; 502, feeding pipe; 6, guide plate; 7 , obstacle bar; 8, support rod; 9, first guide track; 10, second guide track; 11, limit plate; 1101, guide ball; 12, brush roller; 13, linkage assembly; 1301, turntable; 1302, positioning pin; 1303, connecting rod; 1304, tooth plate; 1305, transmission gear; 1306, second guide seat; 14, screening channel; 15, feeding area; 16, discharge port; 17, isolation baffle; 18, first conveying area; 19, second conveying area. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-8 The present application is further described in detail.

[0031] Please refer to Figure 1 and Figure 2A ball mill discharge screening device for gangue slurry filler includes a mounting frame 1, screening mechanisms 2 are movably arranged at both left and right ends of the upper part of the mounting frame 1, and a driving mechanism 3 capable of driving the screening mechanisms 2 to move left and right is commonly connected between the mounting frame 1 and the two screening mechanisms 2, and a feeding mechanism 4 is arranged below the mounting frame 1, and a feeding mechanism 5 is arranged on either side of the front and rear of the mounting frame 1. The feeding mechanism 5 feeds the gangue material ground by the ball mill to the screening mechanism 2 for screening, and the screening mechanism 2 is driven back and forth by the driving mechanism 3 during the screening process, and the different materials after screening are all sent out through the feeding mechanism 4.

[0032] See also Figure 1 The material discharge mechanism 5 includes a receiving bin 501 disposed on the upper rear side of the mounting frame 1. Two storage chambers are disposed inside the receiving bin 501. A delivery pipe 502 is fixedly connected to the lower part of each of the two storage chambers. An electric control valve is disposed on the delivery pipe 502. The receiving bin 501 is installed below the discharge port of the ball mill. The coal gangue after ball milling falls into the two storage chambers in the receiving bin 501. Then, the delivery pipe 502 is controlled by the electric control valve to control the material to fall on the screening mechanism 2.

[0033] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 The screening mechanism 2 includes a screening frame 201 with a moving wheel 202 at the bottom, and the lower part of the screening frame 201 is densely covered with screening holes. A plurality of first guide seats 203 with one end having an arc surface structure are fixedly arranged on the inner walls on both sides of the left and right sides of the screening frame 201, and the adjacent front and rear first guide seats 203 are staggered left and right. A screening channel 14 is formed between the plurality of first guide seats 203 and the interior of the screening frame 201, and the end of the screening channel 14 close to the unloading mechanism 5 is set as a feeding area 15, and the ends of the left and right two feeding areas 15 away from each other are both set as an arc surface structure, and a discharge port 16 is opened at the lower part of the end of the screening channel 14 away from the unloading mechanism 5. Guide plates 6 are fixedly connected to both sides of the upper end of the mounting frame 1, and the lower end and surface of the guide plate 6 are provided with obstacle bars 7 with an arc structure. A plurality of connecting plates are fixedly provided on the side of the two screening frames 201 away from each other, and guide rollers 204 are rotatably provided on the connecting plates. A plurality of support rods 8 are fixedly provided on the inner walls on both sides of the upper end of the mounting frame 1, and the guide rollers 204 are rollingly provided on the support rods 8.

[0034] In order to reduce the risk of clogging of the screening frame 201, when the driving mechanism 3 drives the two screening frames 201 to move outward, the guide rollers 204 on the screening frame 201 can gradually contact the obstacle bars 7 on the guide plate 6, causing the screening frame 201 to vibrate. The vibration makes it easier for the material in the screening holes at the bottom of the screening frame 201 to be discharged. When the moving wheel 202 passes over the lowest obstacle bar 7, it moves upward along the guide plate 6, causing the two screening frames 201 to tilt, and as the screening frame 201 moves outward, under the action of the guide plate 6, the inclination angle of the screening frame 201 gradually increases, causing the material in the screening frame 201 to slide in the screening channel 14, which is beneficial to the screening of the material. After that, when the driving mechanism 3 reversely drives the two screening frames 201 to move inward, the two screening frames 201 will gradually return to a horizontal state from the inclined state, and then continue to move inward. 3 will drive the ends of the two screening frames 201 that are close to each other to tilt up, so that the two screening frames 201 tilt again. Since one end of the first guide seat 203 is a curved surface structure, when the screening frame 201 tilts back and forth, the material moves in the screening channel 14. Since one end of the first guide seat 203 is a curved structure, one end of the feeding area 15 is also a curved structure. When the material tilts and moves toward the first guide seat 203 with the curved structure, the curved surface can guide the material from the previous passage to the next passage, thereby moving toward a predetermined path. In this way, the two screening frames 201 are continuously tilted back and forth and accompanied by vibration through the driving mechanism 3, which can greatly reduce the risk of clogging of the screening frame 201. At the same time, it can also extend the moving path of the material and ultimately control the intercepted material to move toward the specified position for discharge, thereby reducing the difficulty of operation and improving the screening efficiency.

[0035] See also Figure 3 , Figure 7 and Figure 8 , two first guide rails 9 distributed left and right are fixedly arranged on both the front and rear sides of the upper part of the mounting frame 1, and the second guide rails 10 corresponding to the first guide rails 9 on the same side are fixedly arranged on both the front and rear ends of the guide plate 6, and the moving wheels 202 at the bottom of the screening frame 201 are rollingly arranged on the first guide rails 9 and the second guide rails 10 on the same side. Two limit plates 11 distributed left and right are fixedly arranged on both the front and rear sides of the upper part of the mounting frame 1, and a plurality of guide balls 1101 are movably arranged on the surface of the limit plate 11, and the guide balls 1101 are in rolling contact with the outer walls of the front and rear sides of the screening frame 201. Through the cooperation of the first guide rail 9 and the second guide rail 10 on the same side, the moving wheels 202 at the bottom of the screening frame 201 can be guided to move along a predetermined route, and at the same time, the guide balls 1101 on the limit plate 11 are in contact with the outer wall of the screening frame 201. When the screening frame 201 is tilted, some of the guide balls 1101 can still be in contact with the screening frame 201, thereby stably limiting the screening frame 201.

[0036] See also Figure 1 , Figure 3 , Figure 4 and Figure 7 The driving mechanism 3 includes two mounting plates 301 fixedly arranged on the front and rear sides of the upper end of the mounting frame 1, and a screw rod 302 is rotatably arranged on the mounting plate 301. A driving seat 303 is commonly threadedly connected to the two screw rods 302. Multiple linkage plates 304 are hinged on the left and right sides of the driving seat 303. The end of the linkage plate 304 away from the driving seat 303 is hinged to the corresponding screening frame 201. The lower ends of the two screw rods 302 are commonly connected through a sprocket group. A first motor 305 is fixedly arranged on the upper part of any mounting block. The output shaft of the first motor 305 is connected to the lower end of the adjacent screw rod 302 through a gear group. The first motor 305 cooperates with the gear group to drive the screw rod 302 to rotate. The rotation of a single screw rod 302 is connected through the sprocket group, so that the two screw rods 302 rotate synchronously to drive the driving seat 303 to move up and down. The driving seat 303 moves up and down through the linkage plate 304 to push or pull the corresponding screening frame 201 to move outward or inward.

[0037] See also Figure 1 , Figure 5 , Figure 6 and Figure 7 The upper end of the mounting frame 1 is rotatably provided with a plurality of brush rollers 12, and the brush surface of the brush roller 12 is movably abutted against the lower part of the screening frame 201. The plurality of brush rollers 12 are divided into two groups and symmetrically arranged at the left and right ends of the mounting frame 1, and a linkage assembly 13 is arranged between the plurality of brush rollers 12 in the same group and the driving mechanism 3, and the linkage assembly 13 includes a rotating disk 1301 fixedly connected to the output shaft of the first motor 305 through a rotating shaft, and a positioning pin 1302 is fixedly arranged at the lower edge position of the rotating disk 1301, and the positioning pin Two connecting rods 1303 are provided on the movable sleeve 1302, and the end of the connecting rod 1303 away from the turntable 1301 is rotatably connected to the tooth plate 1304, and the end of the brush roller 12 close to the tooth plate 1304 is fixedly provided with a transmission gear 1305, and the transmission gear 1305 is meshed with the corresponding tooth plate 1304 below, and two second guide seats 1306 are fixedly provided on the side of the mounting frame 1 close to the tooth plate 1304, and the tooth plate 1304 is slidably arranged on the side of the second guide seat 1306 away from the mounting frame 1.

[0038] In order to further reduce the risk of clogging of the screening frame 201, when the first motor 305 on the driving mechanism 3 is working, it will synchronously drive the turntable 1301 below to rotate. The rotation of the turntable 1301 will drive the two connecting rods 1303 to swing. The swing of the connecting rods 1303 can drive the tooth plate 1304 to move left and right along the second guide seat 1306, so that the tooth plate 1304 can drive the transmission gear 1305 to rotate, thereby driving the brush roller 12 to rotate. When the screening frame 201 remains in a horizontal state, it will abut against the brush surface of the brush roller 12, and the burrs on the surface of the brush roller 12 will be inserted from the lower part of the screening hole to dredge the screening hole, thereby further reducing the risk of clogging of the screening hole.

[0039] See also Figure 1 and Figure 2 The feeding mechanism 4 includes a conveying platform 401 disposed below the mounting frame 1. A plurality of conveying rollers are rotatably disposed on the conveying platform 401. A conveying belt 402 is sleeved between the plurality of conveying rollers. A second motor 403 is fixedly disposed on any side of the conveying platform 401. The output shaft of the second motor 403 is fixedly connected to the corresponding conveying roller. An isolation bar 17 is also fixedly disposed on the surface of the conveying belt 402. The isolation bar 17 divides the surface of the conveying belt 402 into a first conveying area 18 for conveying small particle materials and a second conveying area 19 for conveying large particle materials. The discharge port 16 is located above the second conveying area 19.

[0040] In order to facilitate the classification and transportation of the screened materials, the conveying roller is driven to rotate by the second motor 403 so that the conveyor belt 402 can move, and the small particles on the screening mechanism 2 fall into the first conveying area 18, while the large particles fall into the second conveying area 19 and are transported to the designated location.

[0041] During specific operation, the unloading mechanism 5 will deliver the coal gangue material ground by the ball mill to the screening mechanism 2 for screening. During the screening process, the driving mechanism 3 will drive the screening frame 201 on the screening mechanism 2 to move left and right along the mounting frame 1. During the movement, the screening frame 201 will cyclically switch between a left-inclined state, a horizontal state, and a right-inclined state, so that the material can move and be screened in the screening channel 14 while the material is accompanied by vibration. Ultimately, most of the small particle materials will be screened out and enter the first conveying area 18 of the conveyor belt 402 below for transportation. The larger particle materials trapped in the screening channel 14 will continue to move in the screening channel 14 until they move to the discharge port 16 at the end of the screening channel 14, and fall into the second conveying area 19 of the conveyor belt 402 below and are transported to the designated position.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A coal gangue slurry filler ball mill discharge screening device, comprising a mounting frame (1), characterized in that: Screening mechanisms (2) are movably arranged at both left and right ends of the upper part of the mounting frame (1), and a driving mechanism (3) capable of driving the screening mechanisms (2) to move left and right is commonly connected between the mounting frame (1) and the two screening mechanisms (2), and a feeding mechanism (4) is arranged below the mounting frame (1), and a feeding mechanism (5) is arranged on either side of the mounting frame (1); The screening mechanism (2) comprises a screening frame (201) with a moving wheel (202) at the bottom, the lower part of the screening frame (201) is densely covered with screening holes, and a plurality of first guide seats (203) with one end having an arc surface structure are fixedly arranged on the inner walls on both sides of the left and right sides of the screening frame (201), and two adjacent front and rear first guide seats (203) are staggeredly arranged on the left and right sides; Guide plates (6) are fixedly connected to both sides of the upper end of the mounting frame (1), and the lower end and surface of the guide plates (6) are provided with barrier strips (7) with an arc surface structure. A plurality of connecting plates are fixedly provided on the sides of the two screening frames (201) that are away from each other, and guide rollers (204) are rotatably provided on the connecting plates. A plurality of support rods (8) are fixedly provided on the inner walls on both sides of the upper end of the mounting frame (1), and the guide rollers (204) are rotatably provided on the support rods (8). The driving mechanism (3) comprises two mounting plates (301) fixedly arranged on the front and rear sides of the upper end of the mounting frame (1); a screw rod (302) is rotatably arranged on the mounting plate (301); the two screw rods (302) are commonly threadedly connected to a driving seat (303); a plurality of linkage plates (304) are hingedly connected on the left and right sides of the driving seat (303); one end of the linkage plate (304) away from the driving seat (303) is hingedly connected to the corresponding screening frame (201); the lower ends of the two screw rods (302) are commonly connected by transmission via a sprocket group; a first motor (305) is fixedly arranged on the upper part of any mounting block; and the output shaft of the first motor (305) is connected to the lower end of the adjacent screw rod (302) by transmission via a gear group; The driving mechanism (3) can drive the screening mechanism (2) to cooperate with the guide plate (6), so that the screening mechanism (2) can move left and right and can cyclically switch between a horizontal state and an inclined state, so that the material in the screening frame (201) is continuously moved, which helps to screen the material. At the same time, the screening frame (201) can cooperate with the obstacle bar (7) on the guide plate (6) to vibrate during the movement, thereby promoting the material to pass through the screening holes at the bottom of the screening frame (201).

2. The device for screening coal gangue slurry filler ball mill discharge according to claim 1, characterized in that: Two first guide rails (9) distributed left and right are fixedly provided on both front and rear sides of the upper part of the mounting frame (1); second guide rails (10) corresponding to the first guide rails (9) on the same side are fixedly provided on both front and rear ends of the guide plate (6); and moving wheels (202) at the bottom of the screening frame (201) are rollingly provided on the first guide rail (9) and the second guide rail (10) on the same side.

3. The device for screening coal gangue slurry filler ball mill discharge according to claim 2, characterized in that: Two limit plates (11) are fixedly provided on both the front and rear sides of the upper part of the mounting frame (1) and are distributed on the left and right. A plurality of guide balls (1101) are movably provided on the surface of the limit plates (11). The guide balls (1101) are in rolling contact with the outer walls of the front and rear sides of the screening frame (201).

4. The device for screening coal gangue slurry filler ball mill discharge according to claim 1, characterized in that: A plurality of brush rollers (12) are rotatably arranged at the upper end of the mounting frame (1), and the brush surfaces of the brush rollers (12) are movably abutted against the lower part of the screening frame (201). The plurality of brush rollers (12) are divided into two groups and symmetrically arranged at the left and right ends of the mounting frame (1), and a linkage assembly (13) is arranged between the plurality of brush rollers (12) in the same group and the driving mechanism (3).

5. The device for screening coal gangue slurry filler ball mill discharge according to claim 4, characterized in that: The linkage assembly (13) comprises a turntable (1301) fixedly connected to the output shaft of the first motor (305) via a rotating shaft; a positioning pin (1302) is fixedly provided at the lower edge of the turntable (1301); two connecting rods (1303) are movably sleeved on the positioning pin (1302); one end of the connecting rod (1303) away from the turntable (1301) is rotatably connected to a toothed plate (1304); a transmission gear (1305) is fixedly provided at one end of the brush roller (12) close to the toothed plate (1304); the transmission gear (1305) meshes with the corresponding toothed plate (1304) below; two second guide seats (1306) are fixedly provided on a side of the mounting frame (1) close to the toothed plate (1304); the toothed plate (1304) is slidably provided on a side of the second guide seat (1306) away from the mounting frame (1).

6. The device for screening coal gangue slurry filler ball mill discharge according to claim 1, characterized in that: A screening channel (14) is formed between the plurality of first guide seats (203) and the interior of the screening frame (201); an end of the screening channel (14) close to the discharge mechanism (5) is configured as a feeding area (15); ends of the left and right feeding areas (15) that are away from each other are configured as arc structures; and a discharge port (16) is provided at the lower portion of an end of the screening channel (14) that is away from the discharge mechanism (5).

7. A coal gangue slurry filler ball mill discharge screening device according to claim 6, characterized in that: The feeding mechanism (4) comprises a conveying platform (401) arranged below the mounting frame (1), a plurality of conveying rollers being rotatably arranged on the conveying platform (401), a conveying belt (402) being sleeved between the plurality of conveying rollers, a second motor (403) being fixedly arranged on any one side of the conveying platform (401), and an output shaft of the second motor (403) being fixedly connected to a corresponding conveying roller.

8. The device for screening coal gangue slurry filler ball mill discharge according to claim 7, characterized in that: The surface of the conveyor belt (402) is also fixedly provided with an isolation bar (17), and the isolation bar (17) divides the surface of the conveyor belt (402) into a first conveying area (18) for conveying small particle materials and a second conveying area (19) for conveying large particle materials, and the discharge port (16) is located above the second conveying area (19).

9. The device for screening coal gangue slurry filler ball mill discharge according to claim 6, characterized in that: The material unloading mechanism (5) comprises a material receiving bin (501) arranged near the material feeding area (15), and two material storage chambers are arranged inside the material receiving bin (501). The lower parts of the two material storage chambers are fixedly connected to a material delivery pipe (502), and the material delivery pipe (502) is provided with an electric control valve.

Images