Coal gangue aggregate screening device

Abstract

The invention relates to the technical field of coal gangue aggregate treatment, and discloses a coal gangue aggregate screening device which comprises a bottom plate and a top plate, the bottom plate and the top plate are connected through four supports, a gap is formed between the bottom plate and the top plate, a rotating plate is rotationally installed on the top plate, a screening assembly is arranged on the rotating plate, and a vertical plate is fixed to one end of the bottom plate; an electric hoist and a second electric cylinder are installed on the side face of the vertical plate, a traction cable is arranged on the electric hoist, and a limiting plate is fixed to the rotating plate. A rotating plate is driven by an electric hoist to rotate to a vertical state, an end cap is pushed by a second electric cylinder, so that a sliding sleeve moves upwards, a movable rod presses a second cross rod to rotate and open under the action of the inclined surface of a guide ring, coal gangue aggregate clamped between the adjacent first cross rod and second cross rod naturally falls, and automatic cleaning of a screening barrel structure is achieved; the sieve holes do not need to be regularly cleaned manually, the labor intensity is reduced, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of coal gangue aggregate processing technology, and in particular to a coal gangue aggregate screening device. Background Technology

[0002] Coal gangue aggregate screening equipment is a mechanical device specifically designed for screening coal gangue aggregate. It aims to separate coal gangue into aggregates of different specifications according to particle size, so as to meet the diverse needs of aggregate particle size in fields such as construction and road engineering.

[0003] Rotary drum screens are commonly used coal gangue aggregate screening devices. The drum screen consists of multiple horizontal long rods and multiple longitudinal ribs. During the screening process, coal gangue of a specific size falls through the screen holes formed by the joint of several long rods and several ribs, thus achieving the screening of coal gangue. However, in actual use, some aggregates are easily stuck in the screen holes, requiring regular manual cleaning. Manual cleaning is inconvenient, time-consuming, and labor-intensive.

[0004] Therefore, it is necessary to design a coal gangue aggregate screening device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a coal gangue aggregate screening device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A coal gangue aggregate screening device includes a bottom plate and a top plate, which are connected by four supports and have a gap between them. A rotating plate is rotatably mounted on the top plate, and a screening assembly is provided on the rotating plate. A vertical plate is fixed to one end of the bottom plate, and an electric hoist and a second electric cylinder are installed on the side of the vertical plate. A traction cable is provided on the electric hoist, and a limit plate is fixed on the rotating plate. The screening assembly consists of a first connecting structure and a second connecting structure. A driving assembly is provided on the rotating plate to drive the screening assembly to rotate. The end of the traction cable away from the electric hoist is connected to the second connecting structure, and a control assembly is provided on the second connecting structure.

[0007] As a preferred embodiment of the present invention, the first connecting structure includes a first mounting ring, a plurality of first crossbars are fixed to the side of the first mounting ring, a plurality of rib rings are fixed together on the plurality of first crossbars, a plurality of grooves are provided on each of the rib rings, and a sleeve wheel is fixedly sleeved on the first mounting ring, with retaining edges provided at both ends of the sleeve wheel.

[0008] As a preferred embodiment of the present invention, the second connection structure includes a second mounting ring and a mounting base. The mounting base is fixed on a rotating plate, and the second mounting ring is rotatably mounted on the mounting base. The second mounting ring has several mounting slots, each of which has a fixed rod. Each fixed rod has a second crossbar rotatably mounted on it. The mounting base is connected to the end of the traction cable away from the electric hoist. A guide ring is fixed to the side of the mounting base, and the inner ring of the guide ring has an inclined surface.

[0009] As a preferred embodiment of the present invention, a plurality of first crossbars are arranged in a circumferential array, a plurality of second crossbars are arranged in a circumferential array, and a plurality of first crossbars and a plurality of second crossbars are arranged alternately.

[0010] As a preferred embodiment of the present invention, the drive assembly includes a mounting frame, which is fixed on a rotating plate. The first mounting ring is rotatably mounted on the mounting frame. A motor is mounted on the mounting frame, and a drive wheel is fixed to the output shaft of the motor, with the drive wheel in contact with the bushing.

[0011] In a preferred embodiment of the present invention, the control component includes a sliding sleeve slidably fitted onto a second mounting ring. The sliding sleeve has several openings, each opening containing a movable rod. Each movable rod has a fixed collar, and each collar is connected to the sliding sleeve via a first spring. Several movable rods are respectively positioned opposite several second crossbars. A connecting rod is fixed to the sliding sleeve, passing through a mounting base and slidably connected to it. An end cap is fixed to the end of the connecting rod away from the sliding sleeve, and the end cap is connected to the mounting base via a second spring. A side plate is fixed to the outer circumferential surface of the end cap.

[0012] As a preferred embodiment of the present invention, in the initial state, the end of the movable rod is located inside the opening.

[0013] As a preferred embodiment of the present invention, all of the aforementioned movable rods are arranged facing the inclined surface of the guide ring.

[0014] As a preferred embodiment of the present invention, when the rotating plate rotates to a vertical position, the side surface of the rotating plate is in contact with the top surface of the limiting plate.

[0015] As a preferred embodiment of the present invention, a slide rail is provided on the rotating plate, a first electric cylinder is installed on the bottom surface of the rotating plate, a moving plate is fixed to the telescopic end of the first electric cylinder, an inclined surface is provided on the moving plate, and a roller is installed on the bottom surface of the rotating plate, with the roller facing the inclined surface of the moving plate.

[0016] The present invention has the following beneficial effects: 1. In this invention, the rotating plate is driven to a vertical position by an electric hoist, and then the end cap is pushed by the second electric cylinder to move the sliding sleeve upward. The movable rod is pressed by the inclined surface of the guide ring to rotate and open the second crossbar, so that the coal gangue aggregate stuck between the adjacent first and second crossbars falls out naturally, realizing the automatic cleaning of the screening cylinder structure. There is no need for manual periodic cleaning of the screen holes, which reduces labor intensity and improves cleaning efficiency. 2. In this invention, the movement of the moving plate is controlled by the first electric cylinder. The tilt of the rotating plate can be adjusted by utilizing the cooperation between the inclined surface of the moving plate and the rollers, thereby controlling the tilt of the screening cylinder structure. Increasing the tilt can accelerate the movement speed of coal gangue aggregate within the screening cylinder, achieving rapid discharge; decreasing the tilt can slow down the movement speed, prolong the screening time, and ensure screening effect. The adjustment can be flexibly made according to actual needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a coal gangue aggregate screening device proposed in this invention; Figure 2 This is a schematic diagram of the structure when the rotating plate is rotated to a vertical position. Figure 3 This is a schematic diagram of the screening component. Figure 4 for Figure 3 Enlarged view of the structure at point A; Figure 5 This is a schematic diagram of the first connection structure; Figure 6 for Figure 5 Enlarged view of the structure at point B; Figure 7 This is a schematic diagram of the second connection structure; Figure 8 A schematic diagram of the structure when several second crossbars are open; Figure 9 for Figure 8 A schematic diagram of the cross-sectional structure; Figure 10 for Figure 9 Enlarged view of the structure at point C.

[0018] In the diagram: 11. Base plate; 12. Top plate; 121. Slide rail; 122. Limiting plate; 123. First electric cylinder; 124. Moving plate; 13. Support; 14. Vertical plate; 141. Electric hoist; 1411. Traction cable; 142. Second electric cylinder; 15. Rotating plate; 151. Roller; 21. First mounting ring; 211. Sleeve wheel; 22. First crossbar; 23. Rib ring; 231. Groove; 31. Second mounting ring; 32. Mounting slot; 33. Second crossbar; 34. Fixed rod; 35. Mounting seat; 351. Guide ring; 41. Sliding sleeve; 42. Movable rod; 43. Sleeve ring; 44. First spring; 45. Connecting rod; 46. End cap; 461. Second spring; 47. Side plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Example 1: This example describes a coal gangue aggregate screening device. Refer to... Figure 1-10 It includes a base plate 11 and a top plate 12, which are connected by four supports 13. There is a gap between the base plate 11 and the top plate 12. A rotating plate 15 is rotatably mounted on the top plate 12. A screening component is provided on the rotating plate 15. A vertical plate 14 is fixed to one end of the base plate 11. An electric hoist 141 and a second electric cylinder 142 are installed on the side of the vertical plate 14. A traction cable 1411 is provided on the electric hoist 141. A limit plate 122 is fixed on the rotating plate 15. When the rotating plate 15 is rotated to the vertical position, the side of the rotating plate 15 is in contact with the top surface of the limit plate 122.

[0021] The screening assembly consists of a first connecting structure and a second connecting structure. A drive assembly is provided on the rotating plate 15 to drive the screening assembly to rotate. The drive assembly includes a mounting frame, which is fixed on the rotating plate 15. A first mounting ring 21 is rotatably mounted on the mounting frame. A motor is mounted on the mounting frame. The output shaft of the motor is fixed with a drive wheel, and the drive wheel is in contact with the sleeve wheel 211. The end of the traction cable 1411 away from the electric hoist 141 is connected to the second connecting structure. The first connecting structure includes a first mounting ring 21. Several first crossbars 22 are fixed on the side of the first mounting ring 21. Several rib rings 23 are fixed together on the several first crossbars 22. Several grooves 231 are opened on each rib ring 23. A sleeve wheel 211 is fixedly sleeved on the first mounting ring 21. Both ends of the sleeve wheel 211 are provided with retaining edges.

[0022] The second connection structure includes a second mounting ring 31 and a mounting base 35. The mounting base 35 is fixed on the rotating plate 15. The second mounting ring 31 is rotatably mounted on the mounting base 35. The second mounting ring 31 has several mounting grooves 32. Each mounting groove 32 has a fixed rod 34 fixed in it. Each fixed rod 34 has a second crossbar 33 rotatably mounted on it. The mounting base 35 is connected to the end of the traction cable 1411 away from the electric hoist 141. A guide ring 351 is fixed on the side of the mounting base 35. The inner ring of the guide ring 351 has an inclined surface. Several first crossbars 22 are arranged in a circumferential array. Several second crossbars 33 are arranged in a circumferential array. The several first crossbars 22 and several second crossbars 33 are arranged in an alternating manner.

[0023] The second connecting structure is equipped with a control component, which includes a sliding sleeve 41. The sliding sleeve 41 is slidably fitted onto the second mounting ring 31. The sliding sleeve 41 has several openings, and a movable rod 42 is slidably installed in each opening. In the initial state, the end of the movable rod 42 is located inside the opening. The movable rods 42 are all positioned opposite the inclined surface of the guide ring 351. Each movable rod 42 is fixed with a collar 43, and each collar 43 is connected to the sliding sleeve 41 by a first spring 44. The movable rods 42 are respectively positioned opposite several second crossbars 33. A connecting rod 45 is fixed to the sliding sleeve 41. The connecting rod 45 passes through the mounting base 35 and is slidably connected to the mounting base 35. An end cap 46 is fixed to the end of the connecting rod 45 away from the sliding sleeve 41, and the end cap 46 is connected to the mounting base 35 by a second spring 461. A side plate 47 is fixed to the outer circumference of the end cap 46. The implementation principle of this embodiment is as follows: When the coal gangue aggregate screening device proposed in this invention is in use, in the initial state, several second horizontal bars 33 are all in a horizontal state, and each second horizontal bar 33 is stuck in the corresponding groove 231 on several reinforcing rings 23. The sliding sleeve 41 moves onto several second horizontal bars 33, and the inner ring of the sliding sleeve 41 contacts several second horizontal bars 33. At this time, the sliding sleeve 41 plays a limiting role on several second horizontal bars 33, so that several second horizontal bars 33 are stably erected on several reinforcing rings 23, forming as follows. Figure 1As shown in the diagram, in this state, several first crossbars 22, several second crossbars 33, and several reinforcing rings 23 together form a screening cylinder structure. During screening, coal gangue aggregate is fed into the screening cylinder. During screening, the motor starts, driving the drive wheel to rotate. The drive wheel contacts the sleeve wheel 211, so when the drive wheel rotates, it can drive the sleeve wheel 211 to rotate, thereby causing the first mounting ring 21 to rotate. When the first mounting ring 21 rotates, it can drive several first crossbars 22 and several reinforcing rings 23 to rotate. Due to the several first crossbars 22, several second crossbars 33, and several reinforcing rings 23, the screening cylinder structure is formed. The two crossbars 33 are respectively engaged in several grooves 231. Therefore, when several ribs 23 rotate, they can drive several second crossbars 33 to rotate, ultimately causing the above-mentioned screening cylinder structure to rotate. During the rotation, the screening cylinder structure screens the coal gangue aggregate. A collection container is provided on the rotating plate 15 to collect the coal gangue aggregate screened out by the screening cylinder. It should be noted that during the screening process, the first mounting ring 21, the second mounting ring 31, several first crossbars 22 and several second crossbars 33 are all in a horizontal state.

[0024] During the screening process, coal gangue aggregate may get stuck in the screen holes of the screening cylinder structure, requiring cleaning. During cleaning, the motor stops running, stopping the rotation of the screening cylinder structure. Then, the electric hoist 141 starts, and as the hoist 141 operates, it winds up the traction cable 1411, pulling the mounting base 35, which in turn causes the rotating plate 15 to rotate. A rotating seat is fixed to the bottom surface of the rotating plate 15, and a shaft is fixed to the top plate 12. The rotating seat is rotatably mounted on the shaft. As the rotating plate 15 rotates, the rotating seat rotates around the shaft until the rotating plate 15 rotates 90 degrees. At this point, the rotating plate 15 falls precisely on the limiting plate 122. The limiting plate 122 provides a limit for the rotating plate 15, ensuring its stability in the vertical position, forming a... Figure 2 As shown, when the rotating plate 15 rotates 90 degrees, the side plate 47 on the end cap 46 rotates to just above the telescopic end of the second electric cylinder 142. Furthermore, the second electric cylinder 142 operates, and its telescopic end extends. When the telescopic end of the second electric cylinder 142 extends, it pushes the side plate 47, causing the side plate 47 to move the end cap 46 upwards. As the end cap 46 moves upwards, it can drive the sliding sleeve 41 upwards via the connecting rod 45, until the sliding sleeve 41 moves onto the second mounting ring 31. Figure 10 As shown, during the movement of the sliding sleeve 41, several movable rods 42 will contact the inclined surface of the inner ring of the guide ring 351 and move along the inclined surface. During this movement, the movable rods 42 will press against the ends of several second crossbars 33, thereby causing the second crossbars 33 to rotate, forming a... Figure 8 As shown, in this state, several second crossbars 33 are in an open state, and the coal gangue aggregate stuck between the adjacent first crossbars 22 and second crossbars 33 will fall off naturally, realizing automatic cleaning of the screening cylinder structure.

[0025] Example 2: Based on Example 1, this example discloses a coal gangue aggregate screening device, such as... Figure 2 As shown, a slide rail 121 is provided on the rotating plate 15, a first electric cylinder 123 is installed on the bottom surface of the rotating plate 15, a moving plate 124 is fixed to the telescopic end of the first electric cylinder 123, an inclined surface is provided on the moving plate 124, and a roller 151 is installed on the bottom surface of the rotating plate 15, with the roller 151 facing the inclined surface of the moving plate 124.

[0026] The implementation principle of this embodiment is as follows: Figure 2 As shown, during the screening of coal gangue aggregate, the operator can control the inclination of the rotating plate 15 through the first electric cylinder 123, thereby controlling the inclination of the screening cylinder structure. Specifically, when the telescopic end of the first electric cylinder 123 retracts, it can drive the moving plate 124 to move. The moving plate 124 is provided with an inclined surface, and a roller 151 is installed on the bottom surface of the rotating plate 15. The roller 151 rests on the inclined surface of the moving plate 124. When the moving plate 124 moves towards one end of the slide 121, the inclined surface of the moving plate 124 will interact with the roller 151. During separation, the rotating plate 15 can rotate. Therefore, the operator can control the tilt of the rotating plate 15 by controlling the position of the moving plate 124, thereby controlling the tilt of the screening cylinder structure. When the tilt of the screening cylinder structure increases, the movement speed of the coal gangue aggregate in the screening cylinder structure increases, facilitating rapid discharge. When the tilt of the screening cylinder structure decreases, the movement speed of the coal gangue aggregate in the screening cylinder structure slows down, thereby prolonging the time of the coal gangue aggregate in the screening cylinder structure and ensuring the screening effect of the device on the coal gangue aggregate.

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A coal gangue aggregate screening device, characterized in that, It includes a base plate (11) and a top plate (12), which are connected by four supports (13). There is a gap between the base plate (11) and the top plate (12). A rotating plate (15) is rotatably mounted on the top plate (12). A screening component is provided on the rotating plate (15). A vertical plate (14) is fixed at one end of the base plate (11). An electric hoist (141) and a second electric cylinder (142) are installed on the side of the vertical plate (14). A traction cable (1411) is provided on the electric hoist (141). A limit plate (122) is fixed on the rotating plate (15). The screening assembly is composed of a first connecting structure and a second connecting structure. A driving assembly is provided on the rotating plate (15) for driving the screening assembly to rotate. The end of the traction cable (1411) away from the electric hoist (141) is connected to the second connecting structure. A control assembly is provided on the second connecting structure.

2. The coal gangue aggregate screening device according to claim 1, characterized in that, The first connection structure includes a first mounting ring (21), a plurality of first crossbars (22) are fixed on the side of the first mounting ring (21), a plurality of rib rings (23) are fixed together on the plurality of first crossbars (22), a plurality of grooves (231) are provided on each of the rib rings (23), and a sleeve wheel (211) is fixedly sleeved on the first mounting ring (21), and both ends of the sleeve wheel (211) are provided with retaining edges.

3. The coal gangue aggregate screening device according to claim 2, characterized in that, The second connection structure includes a second mounting ring (31) and a mounting base (35). The mounting base (35) is fixed on the rotating plate (15). The second mounting ring (31) is rotatably mounted on the mounting base (35). The second mounting ring (31) has several mounting grooves (32). Each mounting groove (32) has a fixed rod (34) fixed in it. Each fixed rod (34) has a second crossbar (33) rotatably mounted on it. The mounting base (35) is connected to the end of the traction cable (1411) away from the electric hoist (141). A guide ring (351) is fixed on the side of the mounting base (35). The inner ring of the guide ring (351) has an inclined surface.

4. The coal gangue aggregate screening device according to claim 3, characterized in that, A number of first crossbars (22) are arranged in a circumferential array, a number of second crossbars (33) are arranged in a circumferential array, and a number of first crossbars (22) and a number of second crossbars (33) are arranged in an alternating manner.

5. A coal gangue aggregate screening device according to claim 2, characterized in that, The drive assembly includes a mounting frame fixed on a rotating plate (15), a first mounting ring (21) rotatably mounted on the mounting frame, a motor mounted on the mounting frame, a drive wheel fixed to the output shaft of the motor, and the drive wheel in contact with a bushing (211).

6. A coal gangue aggregate screening device according to claim 3, characterized in that, The control component includes a sliding sleeve (41), which is slidably fitted onto a second mounting ring (31). The sliding sleeve (41) has several openings, and a movable rod (42) is slidably arranged in each opening. A collar (43) is fixed on each movable rod (42), and each collar (43) is connected to the sliding sleeve (41) by a first spring (44). Several movable rods (42) are respectively arranged opposite to several second crossbars (33). A connecting rod (45) is fixed on the sliding sleeve (41). The connecting rod (45) passes through the mounting base (35) and is slidably connected to the mounting base (35). An end cap (46) is fixed at one end of the connecting rod (45) away from the sliding sleeve (41), and the end cap (46) is connected to the mounting base (35) by a second spring (461). A side plate (47) is fixed on the outer circumferential surface of the end cap (46).

7. A coal gangue aggregate screening device according to claim 6, characterized in that, In the initial state, the end of the movable rod (42) is located inside the opening.

8. A coal gangue aggregate screening device according to claim 6, characterized in that, Several of the movable rods (42) are positioned directly opposite the inclined surface of the guide ring (351).

9. A coal gangue aggregate screening device according to claim 1, characterized in that, When the rotating plate (15) rotates to a vertical position, the side of the rotating plate (15) is in contact with the top surface of the limiting plate (122).

10. A coal gangue aggregate screening device according to claim 1, characterized in that, The rotating plate (15) is provided with a slide (121). A first electric cylinder (123) is installed on the bottom surface of the rotating plate (15). A moving plate (124) is fixed to the telescopic end of the first electric cylinder (123). An inclined surface is provided on the moving plate (124). A roller (151) is installed on the bottom surface of the rotating plate (15), and the roller (151) is positioned directly opposite the inclined surface of the moving plate (124).

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