An energy-saving coal gangue crushing equipment with process intelligent screening function

Abstract

The present invention discloses an energy-saving coal gangue crushing device with a process intelligent screening function, which includes a rotary screen frame and a crushing device. A plurality of drums are arranged in the rotary screen frame, and the plurality of drums are arranged side by side at equal intervals in the rotary screen frame. Both ends of the rotating shaft of each drum are respectively rotatably connected to the inner walls on both sides of the rotary screen frame through bearings. The setting of the trapezoidal strip of this device can not only screen out large coal gangue in the coal gangue, but also make the large coal gangue roll and slide down, thereby effectively shaking off the fine coal gangue doped on the large coal gangue, effectively avoiding the fine coal gangue being dragged away by the large coal gangue during the falling process, and through the setting of the rotating shaft and the rubber plate, when the coal gangue is conveyed by the drum, the rubber plate can squeeze the coal gangue to rotate with the drum, which can effectively avoid the coal gangue rolling in place and staying between two adjacent drums, thereby effectively improving the working efficiency of the rotary screen for screening coal gangue.

Description

Technical Field

[0001] The present invention relates to the field of coal gangue, and particularly to an energy-saving coal gangue crushing device with a process intelligent screening function. Background Art

[0002] At present, the accumulated coal gangue in China has reached more than 1 billion tons, and 100 million tons of coal gangue will be discharged every year. In order to eliminate pollution, China has begun to attach importance to the treatment and utilization of coal gangue;

[0003] Before being utilized, coal gangue generally needs to be crushed and screened. In the prior art, coal gangue usually needs to be screened before being crushed. The coal gangue is sorted according to volume by a rotary screen, so as to process coal gangue of different volumes respectively. When the coal gangue passes through the rotary screen, the small-volume coal gangue falls through the gaps between two adjacent drums of the rotary screen, while the large-volume coal gangue is conveyed away by the drums for crushing work, so as to achieve the purpose of screening large- and small-volume coal gangue.

[0004] Through long-term work practice, it is found that a part of the medium-volume coal gangue in the coal gangue cannot fall through the gaps between two adjacent drums when passing through the rotary screen due to its volume, nor can it be directly conveyed by the drums like the large-volume coal gangue, but will roll in place and stay between two adjacent drums until the large-volume coal gangue comes to push and take away this medium-volume coal gangue. However, since there are many drums in the rotary screen, the medium-volume coal gangue will also stay many times when passing through the rotary screen. Due to the stay of the medium coal gangue, not only the falling of the small-volume coal gangue is affected, but also the screening effect of the rotary screen is reduced, which indirectly results in the reduction of the screening work efficiency and the increase of the energy consumption of the screening machinery.

[0005] Therefore, the present invention designs an energy-saving coal gangue crushing device with a process intelligent screening function to solve the above problems. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a lattice column manufacturing auxiliary device based on building construction.

[0007] The present invention is realized through the following technical solutions:

[0008] An energy-saving coal gangue crushing equipment with process intelligent screening function, including a rolling screen frame and a crushing device, a plurality of rollers are arranged in parallel in the rolling screen frame at equal distances, and both ends of each roller shaft are rotatably connected to the inner walls of both sides of the rolling screen frame through bearings, one end of the shaft of each roller penetrates the inner wall of the rolling screen frame and is fixedly connected to the output shaft of the transmission motor, and the transmission motor is fixedly installed on the outer wall of the rolling screen frame, a first material receiving hopper is arranged directly below the plurality of rollers, and a second material receiving hopper is arranged directly below one end of the plurality of rollers arranged side by side, and both ends of the first material receiving hopper and the second material receiving hopper are respectively connected to the inner wall of the rolling screen frame at both ends. The inner walls on both sides of the rolling screen frame are fixedly connected, and a large particle screening mechanism, a conveyor belt, and a particle auxiliary pushing mechanism are also arranged in the rolling screen frame. A feeding funnel is arranged on the top of the rolling screen frame, and the large particle screening mechanism is arranged directly below the feeding funnel. The particle auxiliary pushing mechanism is arranged directly above a plurality of rollers distributed side by side. The particle auxiliary pushing mechanism includes a plurality of rotating shafts, and the plurality of rotating shafts are equidistantly arranged side by side directly above the plurality of rollers, and a rotating shaft is respectively provided between each two adjacent rollers, and the rotating shaft is rotatably arranged in the rolling screen frame, and a plurality of rubber plates are evenly fixed on the rotating shaft, and the bottom end of the rubber plate at the bottom is in contact with the roller.

[0009] Preferably, the large particle screening mechanism comprises a plurality of trapezoidal bars, which are equidistantly arranged side by side in the rolling screen frame, the top of each trapezoidal bar is fixedly connected to the inner wall of the rolling screen frame, and the plurality of trapezoidal bars are fixedly connected by a plurality of connecting plates, which are arranged at the bottom of the plurality of trapezoidal bars, and the two ends of the connecting plates are respectively fixedly connected to the inner walls on both sides of the rolling screen frame;

[0010] Preferably, the conveyor belt includes a conveyor belt, an active roller and a driven roller, the active roller and the driven roller are connected by a conveyor belt transmission, both ends of the active roller and the driven roller are rotatably connected to the inner wall of the rolling screen frame through bearings, and one end of the active roller penetrates the rolling screen frame and is fixedly connected to the output shaft of the first transmission motor, the first transmission motor is fixedly installed on the outer wall of the rolling screen frame, a support plate is provided between the active roller and the driven roller, the end surfaces on both sides of the support plate are fixedly connected to the inner walls on both sides of the rolling screen frame, the top surface of the support plate is in contact with the bottom surface of the upper belt of the conveyor belt, and one end of the conveyor belt is arranged directly above the feed port of the crushing equipment.

[0011] Preferably, the large particle screening mechanism also includes a perforated plate, which is arranged directly below the multiple trapezoidal bars. The perforated plate is inclined, and the top of the perforated plate is fixedly connected to the inner wall of the rolling screen frame, and the end faces on both sides of the perforated plate are respectively fixedly connected to the inner walls on both sides of the rolling screen frame. A third material receiving hopper is provided directly below the perforated plate, and both ends of the third material receiving hopper are respectively fixedly connected to the inner walls on both sides of the rolling screen frame.

[0012] Preferably, both ends of the rotating shaft penetrate through the inner walls on both sides of the rotary sieve frame. Through holes for the two ends of the rotating shaft to pass through are formed in the outer walls on both sides of the rotary sieve frame. The rotating shaft can move up and down in the through holes. The two ends of the rotating shaft respectively pass through the through holes and are rotatably connected to bearing sleeves through bearings. A first guide rod is fixed to the top end of the bearing sleeve. A first sleeve is sleeved on the first guide rod. The first guide rod is slidably connected to the first sleeve. A retaining ring is fixed to the top end of the first guide rod. The first sleeve is fixed to the outer wall of the rotary sieve frame. A spring is fixedly arranged between the top end of the bearing sleeve and the bottom end of the first sleeve. The spring is sleeved on the first guide rod. A second guide rod is fixed to the bottom end of the bearing sleeve. A second sleeve is sleeved on the second guide rod. The second guide rod is slidably connected to the second sleeve. The second sleeve is fixed to the outer wall of the rotary sieve frame.

[0013] Preferably, a plurality of reinforcing connecting rods are arranged inside the rotary sieve frame. Both ends of the reinforcing connecting rods are fixedly connected to the inner walls on both sides of the rotary sieve frame respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The setting of the trapezoidal strip in this device can not only screen out large coal gangue in the coal gangue, but also make the large coal gangue roll and slide, thereby effectively shaking off the fine coal gangue doped on the large coal gangue, effectively avoiding the large coal gangue dragging away the fine coal gangue during the falling process. And through the setting of the rotating shaft and the rubber plate, when the coal gangue is conveyed by the roller, the rubber plate can squeeze the coal gangue to rotate along with the roller, which can effectively prevent the coal gangue from rolling in place and staying between two adjacent rollers, thereby effectively improving the working efficiency of the rotary sieve for screening coal gangue. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural diagram of the structure of the present invention;

[0016] Figure 2 is the structure of the present invention Figure 1 is a rear view of the rotary sieve frame 1 in the structure;

[0017] Figure 3 is the structure of the present invention Figure 1 is a three-dimensional view of a plurality of trapezoidal strips 7 in the structure;

[0018] Figure 4 is the structure of the present invention Figure 1 is a partial enlarged view of A of the structure.

[0019] In the figure: vibrating screen frame 1, crushing equipment 1-1, drum 2, drive motor 3, large particle screening mechanism 4, conveyor belt 5, particle auxiliary pushing mechanism 6, connecting plate 8, trapezoidal strip 7, perforated plate 9, conveyor belt 10, driving roller 11, driven roller 12, first drive motor 13, rotating shaft 14, rubber plate 15, perforation 16, bearing sleeve 17, first guide rod 18, first sleeve 19, retaining ring 20, second guide rod 21, second sleeve 22, spring 23, support plate 24, first receiving hopper 25, second receiving hopper 26, third receiving hopper 27, reinforcing connecting rod 28, feeding hopper 29. Detailed implementation

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and the specific implementation:

[0021] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 shown, an energy-saving coal gangue crushing equipment with a process intelligent screening function includes a vibrating screen frame 1 and a crushing equipment 1-1. A plurality of drums 2 are arranged in the vibrating screen frame 1 at equal intervals side by side. The two ends of the rotating shaft of each drum 2 are respectively rotationally connected to the inner walls on both sides of the vibrating screen frame 1 through bearings. One end of the rotating shaft of each drum 2 penetrates the inner wall of the vibrating screen frame 1 and is fixedly connected to the output shaft of the drive motor 3. The drive motor 3 is fixedly installed on the outer wall of the vibrating screen frame 1. A first receiving hopper 25 is arranged directly below the plurality of drums 2, and a second receiving hopper 26 is arranged directly below one end of the plurality of drums 2 arranged side by side. The two ends of the first receiving hopper 25 and the second receiving hopper 26 are respectively fixedly connected to the inner walls on both sides of the vibrating screen frame 1. A large particle screening mechanism 4, a conveyor belt 5, and a particle auxiliary pushing mechanism 6 are also arranged in the vibrating screen frame 1. A feeding hopper 29 is arranged at the top of the vibrating screen frame 1. The large particle screening mechanism 4 is arranged directly below the feeding hopper 29, and the particle auxiliary pushing mechanism 6 is arranged directly above the plurality of drums 2 arranged side by side. The particle auxiliary pushing mechanism 6 includes a plurality of rotating shafts 14. The plurality of rotating shafts 14 are arranged at equal intervals side by side directly above the plurality of drums 2, and one rotating shaft 14 is distributed between every two adjacent drums 2. The rotating shaft 14 is rotatably arranged in the vibrating screen frame 1. A plurality of rubber plates 15 are evenly fixed on the rotating shaft 14, and the bottom end of the rubber plate 15 at the bottom contacts the drum 2.

[0022] The large particle screening mechanism 4 includes a plurality of trapezoidal strips 7. The plurality of trapezoidal strips 7 are arranged at equal intervals side by side in the vibrating screen frame 1. The top end of each trapezoidal strip 7 is fixedly connected to the inner wall of the vibrating screen frame 1, and the plurality of trapezoidal strips 7 are fixedly connected by a plurality of connecting plates 8. The connecting plates 8 are arranged at the bottom of the plurality of trapezoidal strips 7, and the two ends of the connecting plates 8 are respectively fixedly connected to the inner walls on both sides of the vibrating screen frame 1;

[0023] The conveyor belt 5 includes a conveyor belt 10, an active roller 11 and a driven roller 12. The active roller 11 and the driven roller 12 are connected by the conveyor belt 10. Both ends of the active roller 11 and the driven roller 12 are rotatably connected to the inner wall of the rolling screen frame 1 through bearings, and one end of the active roller 11 penetrates the rolling screen frame 1 and is fixedly connected to the output shaft of the first transmission motor 13. The first transmission motor 13 is fixedly installed on the outer wall of the rolling screen frame 1. A support plate 24 is provided between the active roller 11 and the driven roller 12. The end surfaces of both sides of the support plate 24 are fixedly connected to the inner walls of both sides of the rolling screen frame 1 respectively. The top surface of the support plate 24 is in contact with the bottom surface of the upper belt of the conveyor belt 10. One end of the conveyor belt 10 is arranged directly above the feed port of the crushing equipment 1-1.

[0024] The large particle screening mechanism 4 also includes a perforated plate 9, which is arranged directly below the multiple trapezoidal bars 7. The perforated plate 9 is inclined, and the top of the perforated plate 9 is fixedly connected to the inner wall of the rolling screen frame 1, and the end faces on both sides of the perforated plate 9 are respectively fixedly connected to the inner walls on both sides of the rolling screen frame 1. A third material receiving hopper 27 is provided directly below the perforated plate 9, and the two ends of the third material receiving hopper 27 are respectively fixedly connected to the inner walls on both sides of the rolling screen frame 1.

[0025] The two ends of the rotating shaft 14 penetrate the inner walls of the rolling screen frame 1 on both sides, and the outer walls of the rolling screen frame 1 on both sides are provided with through holes 16 for the two ends of the rotating shaft 14 to pass through. The rotating shaft 14 can move in the up and down directions in the through holes 16, and the two ends of the rotating shaft 14 pass through the through holes 16 respectively and are rotatably connected with bearing sleeves 17 through bearings. A first guide rod 18 is fixed to the top of the bearing sleeve 17, and a first sleeve 19 is sleeved on the first guide rod 18. The first guide rod 18 is slidably connected to the first sleeve 19, and a retaining ring 20 is fixed to the top of the first guide rod 18. The first sleeve 19 is fixed to the outer wall of the rolling screen frame 1, and a spring 23 is fixed between the top end of the bearing sleeve 17 and the bottom end of the first sleeve 19. The spring 23 is sleeved on the first guide rod 18, and a second guide rod 21 is fixed to the bottom end of the bearing sleeve 17. A second sleeve 22 is sleeved on the second guide rod 21, and the second guide rod 21 is slidably connected to the second sleeve 22, and the second sleeve 22 is fixed to the outer wall of the rolling screen frame 1.

[0026] A plurality of reinforcing connecting rods 28 are provided in the roller screen frame 1 , and two ends of the reinforcing connecting rods 28 are fixedly connected to the inner walls of both sides of the roller screen frame 1 .

[0027] Working principle: When the present invention is in use, gangue enters the rotary screen frame 1 through the feeding hopper 29 and lands on the trapezoidal bars 7 arranged side by side. The trapezoidal bars 7 arranged side by side prevent large pieces of gangue from passing through. Due to the trapezoidal setting of the trapezoidal bars 7, the large pieces of gangue will roll and slide down along the inclined surface of the trapezoidal bars 7. When the large pieces of gangue roll and slide down, they can effectively shake off the fine gangue doped on the large pieces of gangue, effectively avoiding the large pieces of gangue dragging away the fine gangue during the falling process. Finally, the large pieces of gangue land on the conveyor belt 5 and are sent into the feeding port of the crushing device 1-1 by the conveyor belt 10 for crushing. The remaining medium-sized and fine gangue fall onto the orifice plate 9 through the gaps between the multiple trapezoidal bars 7. The orifice plate 9 can effectively block the medium-sized gangue, and the powdered gangue falls into the third receiving hopper 27 through the holes on the orifice plate 9. The medium-sized and fine granular gangue slide along the inclined surface of the orifice plate 9 and land on the multiple rollers 2 arranged side by side. The gangue smaller than the gaps between the multiple rollers 2 among the gangue that lands on the multiple rollers 2 arranged side by side falls into the first receiving hopper 25 through the gaps between the multiple rollers 2, while the gangue larger than the gaps between the multiple rollers 2 is conveyed into the second receiving hopper 26 by the rollers 2. During this process, the spring 23 gives a downward thrust to the rotating shaft 14. Thus, due to the extrusion of the rubber plate 15 on the rotating shaft 14, the rubber plate 15 can extrude the gangue as the rollers 2 rotate when the gangue is conveyed by the rollers 2, effectively avoiding the gangue from rolling in place and staying between two adjacent rollers 2, and thus effectively improving the working efficiency of the rotary screen for screening gangue.

[0028] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving coal gangue crushing equipment with process intelligent screening function, including a rotary screen frame (1) and a crushing equipment (1-1). A plurality of legs are fixedly arranged at the bottom of the rotary screen frame (1). A plurality of drums (2) are arranged in the rotary screen frame (1). The plurality of drums (2) are arranged side by side at equal intervals in the rotary screen frame (1). The two ends of the rotating shaft of each drum (2) are respectively rotationally connected to the inner walls on both sides of the rotary screen frame (1) through bearings. One end of the rotating shaft of each drum (2) penetrates through the inner wall of the rotary screen frame (1) and is fixedly connected to the output shaft of a drive motor (3). The drive motor (3) is fixedly installed on the outer wall of the rotary screen frame (1). A first receiving hopper (25) is arranged directly below the plurality of drums (2), and a second receiving hopper (26) is arranged directly below one end of the plurality of drums (2) arranged side by side. The two ends of the first receiving hopper (25) and the second receiving hopper (26) are respectively fixedly connected to the inner walls on both sides of the rotary screen frame (1). It is characterized in that; Inside the rotary screen frame (1), there are also provided a large particle screening mechanism (4), a conveyor belt (5), and a particle auxiliary pushing mechanism (6). At the top of the rotary screen frame (1), there is a feed hopper (29). The large particle screening mechanism (4) is arranged directly below the feed hopper (29), and the particle auxiliary pushing mechanism (6) is arranged directly above a plurality of rollers (2) distributed side by side; The particle auxiliary pushing mechanism (6) includes a plurality of rotating shafts (14). The plurality of rotating shafts (14) are arranged equidistantly and side by side directly above the plurality of rollers (2), and one rotating shaft (14) is distributed between every two adjacent rollers (2). The rotating shaft (14) is rotatably arranged inside the rotary screen frame (1). A number of rubber plates (15) are evenly fixed on the rotating shaft (14), and the bottom end of the rubber plate (15) at the bottom is in contact with the roller (2). Both ends of the rotating shaft (14) penetrate through the inner walls on both sides of the rotary screen frame (1). Through holes (16) for both ends of the rotating shaft (14) to pass through are formed on the outer walls on both sides of the rotary screen frame (1). The rotating shaft (14) can move up and down in the through holes (16). Both ends of the rotating shaft (14) pass through the through holes (16) and are respectively rotatably connected with bearing sleeves (17) through bearings. A first guide rod (18) is fixed at the top end of the bearing sleeve (17). A first sleeve (19) is sleeved on the first guide rod (18). The first guide rod (18) is slidably connected with the first sleeve (19). A retaining ring (20) is fixed at the top end of the first guide rod (18). The first sleeve (19) is fixed on the outer wall of the rotary screen frame (1). A spring (23) is fixedly arranged between the top end of the bearing sleeve (17) and the bottom end of the first sleeve (19). The spring (23) is sleeved on the first guide rod (18). A second guide rod (21) is fixed at the bottom end of the bearing sleeve (17). A second sleeve (22) is sleeved on the second guide rod (21). The second guide rod (21) is slidably connected with the second sleeve (22). The second sleeve (22) is fixed on the outer wall of the rotary screen frame (1); The large particle screening mechanism (4) includes a plurality of trapezoidal bars (7). The plurality of trapezoidal bars (7) are arranged equidistantly and side by side inside the rotary screen frame (1). The top end of each trapezoidal bar (7) is fixedly connected with the inner wall of the rotary screen frame (1). The plurality of trapezoidal bars (7) are fixedly connected through a number of connecting plates (8). The connecting plates (8) are arranged at the bottom of the plurality of trapezoidal bars (7), and both ends of the connecting plates (8) are respectively fixedly connected with the inner walls on both sides of the rotary screen frame (1). The large particle screening mechanism (4) further includes a perforated plate (9). The perforated plate (9) is arranged directly below the plurality of trapezoidal bars (7). The perforated plate (9) is inclined. The top end of the perforated plate (9) is fixedly connected with the inner wall of the rotary screen frame (1). Both end faces of the perforated plate (9) are respectively fixedly connected with the inner walls on both sides of the rotary screen frame (1). A third receiving hopper (27) is arranged directly below the perforated plate (9). Both ends of the third receiving hopper (27) are respectively fixedly connected with the inner walls on both sides of the rotary screen frame (1); The conveyor belt (5) comprises a conveyor belt (10), a driving roller (11) and a driven roller (12); the driving roller (11) and the driven roller (12) are connected to each other by means of the conveyor belt (10); one end of the conveyor belt (10) is arranged directly above the feed port of the crushing device (1-1), and the other end is arranged at the end of the trapezoidal bars (7); the trapezoidal bars (7) arranged side by side prevent large pieces of coal gangue from passing through; the large pieces of coal gangue will roll and slide along the inclined surface of the trapezoidal bars (7), and eventually the large pieces of coal gangue will fall onto the conveyor belt (10).

2. The energy-saving coal gangue crushing equipment with a process intelligent screening function according to claim 1, characterized in that: Both ends of the active roller (11) and the driven roller (12) are rotatably connected to the inner wall of the rolling screen frame (1) via bearings, and one end of the active roller (11) penetrates the rolling screen frame (1) and is fixedly connected to the output shaft of the first transmission motor (13), and the first transmission motor (13) is fixedly mounted on the outer wall of the rolling screen frame (1). A support plate (24) is provided between the active roller (11) and the driven roller (12), and the end surfaces of both sides of the support plate (24) are fixedly connected to the inner walls of both sides of the rolling screen frame (1), and the top surface of the support plate (24) is in contact with the bottom surface of the upper belt of the conveyor belt (10).

3. An energy-saving coal gangue crushing device with a process intelligent screening function according to claim 1, characterized in that: A plurality of reinforcing connecting rods (28) are provided in the rolling screen frame (1), and two ends of the reinforcing connecting rods (28) are respectively fixedly connected to the inner walls on both sides of the rolling screen frame (1).

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