Coal gangue sorting device

Abstract

The present application belongs to the technical field of coal gangue sorting equipment, and discloses a coal gangue sorting equipment, which comprises a sorting box with a screening unit and a power unit, the screening unit comprises a sieve plate, an upper shell, an elastic member and a lower shell, the sieve plate is movably arranged above the upper shell, the upper shell is fixed to the sorting box and connected to the lower shell through the elastic member, the lower shell is drivingly connected to the power unit, an inner cavity is formed in the elastic member, an auxiliary assembly is arranged between the sieve plate and the elastic member, the auxiliary assembly comprises a telescopic member and a connecting pipe with an electromagnetic valve, the telescopic member is fixedly arranged below the sieve plate, one end of the connecting pipe is in communication with the telescopic member, and the other end of the connecting pipe is in communication with the inner cavity; in a normal state, the electromagnetic valve is closed; in a cleaning state, the electromagnetic valve is opened; the present application can realize the cleaning of the coal gangue by utilizing the pulsation of water flow, and has a simple structure.

Description

Technical Field

[0001] This invention belongs to the technical field of coal gangue sorting equipment, specifically a coal gangue sorting device. Background Technology

[0002] After prolonged use, coal gangue sorting equipment often experiences blockages on its screen plates due to silt and other impurities. Conventional cleaning methods include manually removing the blockages, cleaning them, and then re-laying them, which is undoubtedly time-consuming and labor-intensive. Other methods involve installing additional vibration devices on the equipment, which increases costs and occupies a large space. Therefore, there is a need for a coal gangue sorting equipment with a simple structure and small footprint. Summary of the Invention

[0003] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a coal gangue sorting device, which effectively solves the problem that manually removing the bed stone, cleaning it, and then laying it back is undoubtedly time-consuming and labor-intensive; some methods involve setting up additional vibration devices on the equipment, which increases costs and occupies a large space.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a coal gangue sorting device, comprising a sorting box having a screening unit and a power unit. The screening unit includes a screen plate, an upper shell, an elastic element, and a lower shell. The screen plate is movably disposed above the upper shell. The upper shell is fixed to the sorting box and connected to the lower shell through the elastic element. The lower shell is drivenly connected to the power unit. An inner cavity is formed within the elastic element. An auxiliary component is provided between the screen plate and the elastic element. The auxiliary component includes a telescopic element and a connecting pipe with an electromagnetic valve. The telescopic element is fixedly disposed below the screen plate. One end of the connecting pipe communicates with the telescopic element, and the other end of the connecting pipe communicates with the inner cavity. In the normal state, the electromagnetic valve is closed; in the cleaning state, the electromagnetic valve is open.

[0005] Preferably, the elastic element includes a diaphragm ring with an inner cavity disposed within it, and the diaphragm ring is made of an elastic material.

[0006] Preferably, the telescopic component includes a lower cylinder, a piston, and an upper push rod. The lower cylinder is fixedly installed and communicates with the connecting pipe. The piston is slidably sealed inside the lower cylinder, and the upper push rod is fixed to the piston.

[0007] Preferably, the telescopic component further includes two telescopic springs, one of which is wrapped around the upper push rod and located between the piston and the upper wall of the lower cylinder, and the other is located between the piston and the lower wall of the lower cylinder.

[0008] Preferably, the telescopic member is provided with a support and a supporting spring on its outer side. The support is fixed to the sorting box, and the supporting spring is wrapped around the outer side of the telescopic member and located between the screen plate and the support.

[0009] Preferably, the telescopic component is provided with a protective sleeve on its outer side, the top end of the protective sleeve is fixed to the sieve plate, the bottom end of the protective sleeve is fixed to the support, and the telescopic component and the support spring are both located inside the protective sleeve.

[0010] Preferably, there are two screening units, and the two screening units are driven by the same power unit.

[0011] Preferably, the power unit includes a power component, a rotating wheel, a connecting rod, a swing frame, and a top frame; the power component is fixedly installed and its output end is fixed to the rotating wheel, the rotating wheel is hinged to the swing frame through the connecting rod, the two ends of the swing frame are respectively hinged to the lower housings in the two screening units, the middle part of the swing frame is hinged to the top frame, and the top frame is fixed to the sorting box.

[0012] Preferably, the power assembly includes a power motor, a driving pulley, a driven pulley, a transmission belt, and a rotating shaft. The power motor is fixed on the sorting box and its output shaft is fixed to the driving pulley. The driving pulley is connected to the driven pulley via the transmission belt. The driven pulley is fixed to the rotating wheel via the rotating shaft, which is rotatably mounted on the sorting box.

[0013] Preferably, the diaphragm ring is provided with at least one valve unit, the valve unit including an inlet pipe and an outlet pipe, and a one-way solenoid valve is fixed on both the inlet pipe and the outlet pipe. The inlet pipe is fixed on the outside of the diaphragm ring, and the outlet pipe is fixed on the inside of the diaphragm ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. During operation, the auxiliary components can be used to clean the bed stones by utilizing the pulsation of water flow, without the need for an additional power source, and the structure is simple.

[0016] 2. During operation, the diaphragm ring not only serves as an elastic connector between the upper and lower shells, but also provides power to the telescopic components, causing them to continuously lift the screen plate and complete the self-cleaning of the bed stones.

[0017] 3. During operation, the water inlet and outlet pipes, in conjunction with the diaphragm ring, enable water replenishment to the inside of the sorting box without the need for additional equipment, resulting in a simple structure. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the structure of a coal gangue sorting device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the power unit structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the lower housing and sieve plate structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the auxiliary component structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0025] Figure 6 This is a schematic diagram of the telescopic component structure of the present invention;

[0026] Figure 7 For the present invention Figure 3 Schematic diagram of the longitudinal section structure;

[0027] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B.

[0028] In the diagram: 1. Sorting box; 2. Screen plate; 3. Upper shell; 4. Lower shell; 5. Inner cavity; 6. Solenoid valve; 7. Connecting pipe; 8. Diaphragm ring; 9. Lower cylinder; 10. Piston; 11. Upper push rod; 12. Telescopic spring; 13. Support; 14. Support spring; 15. Protective sleeve; 16. Rotary wheel; 17. Connecting rod; 18. Swing frame; 19. Top frame; 20. Power motor; 21. Driving pulley; 22. Driven pulley; 23. Transmission belt; 24. Rotating shaft; 25. Feed inlet; 26. Discharge outlet; 27. Water inlet pipe; 28. Water outlet pipe; 29. ​​One-way solenoid valve. Detailed Implementation

[0029] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] Depend on Figures 1 to 8This invention relates to a coal gangue sorting device, comprising a sorting box 1 having a screening unit and a power unit. One end of the sorting box 1 has a feed inlet 25, and the other end has a discharge outlet 26. The screening unit includes a screen plate 2, an upper housing 3, an elastic element, and a lower housing 4. The screen plate 2 is movably positioned above the upper housing 3. The upper housing 3 is fixed to the sorting box 1 and connected to the lower housing 4 via the elastic element. The lower housing 4 is connected to the power unit via a transmission mechanism. An inner cavity 5 is formed within the elastic element. An auxiliary component is provided between the screen plate 2 and the elastic element. The auxiliary component includes a telescopic element and a connecting pipe 7 with a solenoid valve 6. The telescopic element is fixedly positioned below the screen plate 2. One end of the connecting pipe 7 communicates with the telescopic element, and the other end communicates with the inner cavity 5. In the normal state, the solenoid valve 6 is closed; in the cleaning state, the solenoid valve 6 is open.

[0031] In this design, under normal conditions, a layer of large-diameter bed stones is laid above the screen plate 2. The material is screened by these large-diameter bed stones, and both the upper shell 3 and the lower shell 4 are filled with water. The material and water flow are fed into the screen plate 2 through the feed inlet 25. Then, the lower shell 4 is driven to move by the power unit. When the lower shell 4 moves upward, it squeezes the elastic element and flattens it, causing the water inside the lower shell 4 to move upward as a whole. This, in turn, causes the water inside the upper shell 3 to move upward as a whole. When the lower shell 4 moves downward, it stretches the elastic element to restore its original shape. At this time, the water in the lower shell 4 moves downward as a whole. The water in the upper shell 3 descends, causing the water in the lower shell 4 to descend as a whole. This cycle repeats, causing the water flow in the upper shell 3 and lower shell 4 to rise and fall continuously. Through the continuous rise and fall of the water flow and the impact of the water flow at the feed inlet 25, the less dense material passes through the bed stone on the screen plate 2 and moves towards the discharge outlet 26, and is finally discharged through the discharge outlet 26. The denser material passes through the bed stone and screen plate 2 and falls into the interior of the upper shell 3, and is finally discharged through the discharge outlet at the bottom of the lower shell 4. Thus, the sorting of coal gangue is achieved by taking advantage of the different densities of different materials.

[0032] After prolonged use, the large-diameter bed stones on sieve plate 2 accumulate a significant amount of silt and other contaminants in their gaps, reducing the effective porosity of the bed stones. Therefore, regular cleaning is necessary. The following method is used:

[0033] When the bed stones need to be cleaned, i.e. in the cleaning state, the solenoid valve 6 is opened, and the power unit drives the screening unit to move. The specific process is as follows: When the lower housing 4 moves upward, it will squeeze the inner cavity 5 of the elastic element. The air in the inner cavity 5 will enter the interior of the telescopic element through the connecting pipe 7, causing the telescopic element to extend. The extended telescopic element will lift the screen plate 2. When the lower housing 4 moves downward, it will pull the elastic element back to its original shape, causing negative pressure to be generated in the inner cavity 5. The negative pressure will be transmitted to the interior of the telescopic element through the connecting pipe 7, causing the telescopic element to shorten. At this time, the screen plate 2 will fall. The cycle can make the screen plate 2 vibrate continuously, causing the bed stones on it to collide with each other, thereby realizing the automatic cleaning of silt and other impurities in the gaps of the bed stones.

[0034] It should be noted that baffles can be installed at both ends of the sieve plate 2 to prevent bed stones from falling off; when not being cleaned, i.e. in the normal state, the solenoid valve 6 remains closed.

[0035] Specifically, the elastic element includes a diaphragm ring 8, with an inner cavity 5 located within the diaphragm ring 8. The diaphragm ring 8 is made of an elastic material, such as rubber. This design, using the diaphragm ring 8 as a structure connecting the upper shell 3 and the lower shell 4, can, on the one hand, coordinate with the upward movement of the lower shell 4 to achieve pulsation of the water flow, and on the other hand, serve as a power source to achieve vibration of the screen plate 2 for sludge removal.

[0036] Specifically, the telescopic component includes a lower cylinder 9, a piston 10, and an upper push rod 11. The lower cylinder 9 is fixedly installed and connected to the connecting pipe 7. The piston 10 is slidably sealed inside the lower cylinder 9, and the upper push rod 11 is fixed to the piston 10. With this design, when air in the inner cavity 5 enters the lower cylinder 9 through the connecting pipe 7, the air pressure inside the lower cylinder 9 increases, causing the piston 10 to drive the upper push rod 11 upward. The upper push rod 11 continuously lifts the screen plate 2. When a negative pressure is generated in the inner cavity 5, the piston 10 drives the upper push rod 11 downward. This cycle is repeated to achieve vibration operation of the screen plate 2.

[0037] It should be noted that, in order to reduce the impact between the upper push rod 11 and the screen plate 2, an elastic material, such as rubber, silicone, or spring, can be placed between them; the inner cavity 5 and the lower cylinder 9 can also be connected by water pressure, but the water needs to be drained after use.

[0038] Specifically, the telescopic component also includes two telescopic springs 12. One telescopic spring 12 is wrapped around the upper push rod 11 and located between the piston 10 and the inner top wall of the lower cylinder 9, while the other telescopic spring 12 is located between the piston 10 and the inner bottom wall of the lower cylinder 9. This design can, on the one hand, prevent the piston 10 from making hard contact with the lower cylinder 9, and on the other hand, the two telescopic springs 12 can also play a buffering role.

[0039] Specifically, the telescopic component is provided with a support 13 and a support spring 14 on its outer side. The support 13 is fixed to the sorting box 1, and the support spring 14 surrounds the outer side of the telescopic component and is located between the screen plate 2 and the support 13. This design can support the screen plate 2 through the support spring 14, while also preventing the screen plate 2 from excessively colliding.

[0040] Specifically, a protective sleeve 15 is provided on the outside of the telescopic component. The top end of the protective sleeve 15 is fixed to the screen plate 2, and the bottom end of the protective sleeve 15 is fixed to the support 13. The telescopic component and the support spring 14 are both located inside the protective sleeve 15. This design can prevent materials or water from entering the interior of the protective sleeve 15 and protect its internal parts. The protective sleeve 15 can be made of flexible or elastic materials or telescopic tubes, etc.

[0041] Considering that water needs to be replenished continuously during use to ensure that the liquid level in the upper shell 3 is maintained at a suitable height, at least one valve unit is provided on the diaphragm ring 8. The valve unit includes an inlet pipe 27 and an outlet pipe 28. A one-way solenoid valve 29 is fixed on both the inlet pipe 27 and the outlet pipe 28. The inlet pipe 27 is fixed on the outside of the diaphragm ring 8, and the outlet pipe 28 is fixed on the inside of the diaphragm ring 8.

[0042] With this design, when in use, the solenoid valve 6 is closed and the two one-way solenoid valves 29 are opened. When the lower housing 4 moves downward, a negative pressure is generated in the inner cavity 5 of the diaphragm ring 8. This negative pressure draws in external water through the inlet pipe 27. When the lower housing 4 moves upward, it discharges the air or water in the inner cavity 5 of the diaphragm ring 8 through the outlet pipe 28. This cyclical action continuously replenishes the interior of the lower housing 4 with external water, completing the water replenishment operation.

[0043] It should be noted that during operation, when the solenoid valve 6 is opened, both one-way solenoid valves 29 are closed. The water inlet pipe 27 can be set as a three-way pipe, with one end of the one-way solenoid valve 29 fixed to the external water pipe, and the other end set to have a control valve and be connected to the outside. The water outlet pipe 28 is set at a lower position. In this way, when it is necessary to drain the water in the inner cavity 5, the one-way solenoid valve 29 at the water inlet can be closed and the control valve at the air inlet can be opened to facilitate drainage.

[0044] Specifically, there are two screening units, which are driven by the same power unit. The power unit includes a power assembly, a rotating wheel 16, a connecting rod 17, a swing frame 18, and a top frame 19. The power assembly is fixedly installed and its output end is fixed to the rotating wheel 16. The rotating wheel 16 is hinged to the swing frame 18 through the connecting rod 17. The two ends of the swing frame 18 are respectively hinged to the lower housing 4 inside the two screening units. The middle part of the swing frame 18 is hinged to the top frame 19. The top frame 19 is fixed to the sorting box 1.

[0045] With this design, during use, the power component drives the rotating wheel 16 to rotate, and the rotating wheel 16 drives the swing frame 18 to move through the connecting rod 17. The hinge between the connecting rod 17 and the rotating wheel 16 is located at the edge of the rotating wheel 16, so that the swing frame 18 swings back and forth around the two ends of the top frame 19. The swing frame 18 then drives the lower housing 4 to move up and down continuously, realizing the driving operation of the lower housing 4.

[0046] Specifically, the power assembly includes a power motor 20, a drive pulley 21, a driven pulley 22, a transmission belt 23, and a rotating shaft 24. The power motor 20 is fixed on the sorting box 1 and its output shaft is fixed to the drive pulley 21. The drive pulley 21 is connected to the driven pulley 22 via the transmission belt 23. The driven pulley 22 is fixed to the rotating wheel 16 via the rotating shaft 24. The rotating shaft 24 is rotatably mounted on the sorting box 1.

[0047] With this design, the drive pulley 21 is driven to rotate by the power motor 20, the drive pulley 21 drives the driven pulley 22 to rotate through the transmission belt 23, and the driven pulley 22 drives the rotating wheel 16 to rotate through the rotating shaft 24, thereby driving the rotating wheel 16.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal gangue sorting device, comprising a sorting box (1) having a screening unit and a power unit, wherein the screening unit comprises a screen plate (2), an upper shell (3), an elastic element and a lower shell (4), the screen plate (2) being movably disposed above the upper shell (3), the upper shell (3) being fixed to the sorting box (1) and connected to the lower shell (4) through the elastic element, and the lower shell (4) being drive-connected to the power unit, characterized in that: An inner cavity (5) is formed inside the elastic element. An auxiliary component is provided between the sieve plate (2) and the elastic element. The auxiliary component includes a telescopic component and a connecting pipe (7) with a solenoid valve (6). The telescopic component is fixedly installed and located below the sieve plate (2). One end of the connecting pipe (7) is connected to the telescopic component, and the other end of the connecting pipe (7) is connected to the inner cavity (5). In the normal state, the solenoid valve (6) is closed. In the cleaning state, the solenoid valve (6) is open.

2. The coal gangue sorting equipment according to claim 1, characterized in that: The elastic element includes a diaphragm ring (8), with an inner cavity (5) located inside the diaphragm ring (8), and the diaphragm ring (8) is made of an elastic material.

3. The coal gangue sorting equipment according to claim 1, characterized in that: The telescopic component includes a lower cylinder (9), a piston (10), and an upper push rod (11). The lower cylinder (9) is fixedly installed and connected to the connecting pipe (7). The piston (10) is slidably sealed inside the lower cylinder (9), and the upper push rod (11) is fixed to the piston (10).

4. The coal gangue sorting equipment according to claim 3, characterized in that: The telescopic component also includes two telescopic springs (12), one of which is wrapped around the upper push rod (11) and located between the piston (10) and the inner top wall of the lower cylinder (9), and the other telescopic spring (12) is located between the piston (10) and the inner bottom wall of the lower cylinder (9).

5. The coal gangue sorting equipment according to claim 4, characterized in that: The telescopic component is provided with a support (13) and a support spring (14) on its outer side. The support (13) is fixed to the sorting box (1), and the support spring (14) surrounds the outer side of the telescopic component and is located between the sieve plate (2) and the support (13).

6. The coal gangue sorting equipment according to claim 5, characterized in that: The telescopic component is provided with a protective sleeve (15) on the outside. The top of the protective sleeve (15) is fixed to the sieve plate (2), and the bottom of the protective sleeve (15) is fixed to the support (13). The telescopic component and the support spring (14) are both located inside the protective sleeve (15).

7. The coal gangue sorting equipment according to claim 1, characterized in that: The screening unit is provided in two parts, and the two screening units are driven by the same power unit.

8. The coal gangue sorting equipment according to claim 7, characterized in that: The power unit includes a power assembly, a rotating wheel (16), a connecting rod (17), a swing frame (18), and a top frame (19). The power assembly is fixedly installed and its output end is fixed to the rotating wheel (16). The rotating wheel (16) is hinged to the swing frame (18) through the connecting rod (17). The two ends of the swing frame (18) are respectively hinged to the lower housing (4) in the two screening units. The middle part of the swing frame (18) is hinged to the top frame (19). The top frame (19) is fixed to the sorting box (1).

9. A coal gangue sorting device according to claim 8, characterized in that: The power assembly includes a power motor (20), a drive pulley (21), a driven pulley (22), a transmission belt (23), and a rotating shaft (24). The power motor (20) is fixed on the sorting box (1), and its output shaft is fixed to the drive pulley (21). The drive pulley (21) is connected to the driven pulley (22) via the transmission belt (23). The driven pulley (22) is fixed to the rotating wheel (16) via the rotating shaft (24). The rotating shaft (24) is rotatably mounted on the sorting box (1).

10. A coal gangue sorting device according to claim 1, characterized in that: The diaphragm ring (8) is provided with at least one valve unit, which includes an inlet pipe (27) and an outlet pipe (28). A one-way solenoid valve (29) is fixed on both the inlet pipe (27) and the outlet pipe (28). The inlet pipe (27) is fixed on the outside of the diaphragm ring (8), and the outlet pipe (28) is fixed on the inside of the diaphragm ring (8).

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