A dust removal system for a waste rock separator

Abstract

The present invention discloses a dust removal system for a gangue separator, which relates to the technical field of dust removal, and includes a dust hopper, a screening mechanism and a dust collector, wherein a filter screen plate is installed at the input end of the dust hopper, a baffle is provided at the lower front side of the dust hopper, an air outlet is provided at the output end of the dust hopper, a flushing mechanism is provided inside the dust hopper, and the output end of the flushing mechanism faces the filter screen plate, a closable maintenance door is provided at one side of the dust hopper, and a rotatable guide plate is provided at the lower side of the dust hopper, and the rotating shaft of the guide plate is provided at the lower part of the dust hopper near its rear side and parallel to the rear side of the dust hopper. A baffle is provided at the lower front side of the dust hopper of the present invention to prevent gangue blocks from being directly blown into the dust hopper, and at the same time to prevent the high-speed materials being blown from impacting the air inlet, top plate and dust hopper of the gangue separator material box, and a filter screen plate is provided at the input end of the dust hopper to prevent the gangue blocks or debris being blown from entering the dust hopper and blocking the air duct.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal, and in particular to a dust removal system for a gangue separator. Background Art

[0002] The intelligent gangue sorting machine for coal mines will generate a large amount of dust during operation. In the process of handling dust, an induced draft fan is needed to introduce dust-containing air into the filtration system, filter out the dust in the air through the filter cartridge, and discharge the exhaust gas into the air at the same time; the intelligent gangue sorting machine identifies gangue through rays, and changes the material falling trajectory through high-speed and high-pressure air valve directional blowing to achieve gangue sorting. During the blowing process of the high-speed and high-pressure air valve, the high-pressure air will blow the sorted materials and debris to the induced draft port on the top of the falling bin, which will cause the air inlet of the dust removal system to be blocked and damaged, and there will be a lot of broken small gangue when the gangue is screened, and the broken small gangue still has economic value. Under the suction of the dust removal, the broken small gangue and the dust enter the dust removal mechanism together and are collected and discharged, resulting in a waste of resources, and the broken small gangue jumps in the dust removal mechanism, especially for the cloth belt dust removal mechanism, there is a risk of gangue scratching the cloth belt.

[0003] Therefore, it is necessary to invent a dust removal system for a gangue separator to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a dust removal system for a gangue separator to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a dust removal system for a gangue separator, comprising:

[0006] A dust hopper, wherein a filter plate is installed at the input end of the dust hopper, a baffle is provided on the lower front side of the dust hopper, an air outlet is provided at the output end of the dust hopper, a flushing mechanism is provided inside the dust hopper, and the output end of the flushing mechanism faces the filter plate, a closable maintenance door is provided on one side of the dust hopper, a rotatable guide plate is provided on the lower side of the dust hopper, and a rotating shaft of the guide plate is provided at the lower part of the dust hopper close to its rear side and parallel to the rear side of the dust hopper.

[0007] The screening mechanism comprises a sealing cover and a screening drum, wherein the screening drum is rotatably mounted inside the sealing cover and can rotate automatically, one end of the screening drum is sealed and connected to the air outlet through an air duct, and the other end is sealed and provided with a closable discharge door.

[0008] The dust collector is used for dust absorption and filtration, and the inner cavity of the sealing cover is connected with the input end of the dust collector.

[0009] Optionally, a mounting beam is fixedly installed on the outside of the input end of the dust hopper for detachable installation of the dust hopper, and the filter plate and the baffle are both mounted on the mounting beam by bolts.

[0010] Optionally, a plurality of reinforcing beams are installed on the inner side of the baffle, a bolt mounting plate is provided at one end of the reinforcing beam away from the baffle, and a plurality of reinforcing ribs are provided on the inner side or outer side of the baffle.

[0011] Optionally, the flushing mechanism includes a pipeline and a nozzle, the nozzle is provided in plurality and connected to the lower side of the pipeline, and a sealing cap is threadedly mounted on the nozzle to cover the output end of the nozzle.

[0012] Optionally, the maintenance door is hinged on the dust hopper, the maintenance door is provided with a first spring lock buckle away from the hinged end, and the dust hopper is provided with a first locking block corresponding to the first spring lock buckle.

[0013] Optionally, a first motor is further included, and both ends of the rotating shaft of the guide plate are provided with rotating connecting parts, and the output end of the first motor is connected to a rotating connecting part to drive the rotation of the guide plate.

[0014] Optionally, a second motor is further included, a gear ring is provided on the outer side of the screening cylinder, an output end of the second motor is connected to a gear, and the gear is meshingly connected to the gear ring.

[0015] Optionally, the discharge door is hinged at the output end of the screening drum, a second spring lock is installed at the output end of the screening drum, and a second locking block corresponding to the second spring lock is provided on the discharge door.

[0016] Optionally, the dust collector adopts a pulse dust collector, which includes a box body, a dust removal mechanism, an ash hopper, a pulse mechanism and a fan. The output end of the ash hopper is provided with a discharge valve, and the output end of the fan is connected to a chimney.

[0017] Technical effects and advantages of the present invention:

[0018] The present invention prevents gangue blocks from being blown directly into the dust collecting hopper by arranging a baffle at the lower front side of the dust collecting hopper, and prevents the blown high-speed materials from impacting the air inlet, top plate and dust collecting hopper of the gangue separator material box;

[0019] The input end of the dust collecting hopper of the present invention is provided with a filter screen plate to filter the dust and prevent the blown gangue or debris from entering the dust collecting hopper and blocking the air duct.

[0020] A flushing mechanism is provided in the dust collecting hopper of the present invention, which is used to flush the filter screen plate to prevent smaller particles from getting stuck in the filter screen plate and causing blockage, thereby affecting the dust removal effect;

[0021] A rotatable guide plate is provided at the lower side of the dust collecting hopper of the present invention, which is used to guide the discharge of debris filtered by the filter screen or the washing water of the filter screen when the dust removal is stopped, so as to prevent the debris or the washing water from entering the gangue collection bin;

[0022] The screening mechanism of the present invention is arranged to screen and filter small gangue and dust in the dust collecting air, and the small gangue can be sold, thereby reducing material loss and preventing the small gangue of particle blocks from entering the dust collector and colliding with or scratching the dust blocking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the external structure of the dust collecting hopper of the present invention.

[0025] Figure 3 It is a schematic diagram of the lower structure of the dust collecting hopper of the present invention.

[0026] Figure 4 It is a schematic diagram of the lower structure of the dust collecting hopper of the present invention.

[0027] Figure 5 It is a schematic diagram of the internal structure of the screening mechanism of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of the flushing mechanism of the present invention.

[0029] In the figure: 1. dust collecting hopper; 2. screening mechanism; 201. sealing cover; 202. screening cylinder; 3. dust collector; 4. filter screen; 5. baffle; 6. air outlet; 7. flushing mechanism; 701. pipeline; 702. nozzle; 8. maintenance door; 9. guide plate; 10. discharge door; 11. mounting beam; 12. reinforcement beam; 13. strengthening rib; 14. sealing cap; 15. first spring lock; 16. first motor; 17. gear ring; 18. second motor; 19. second spring lock; 20. gangue separator box; 21. limit ring; 22. support wheel; 23. hook; 24. ash hopper; 25. pulse mechanism; 26. fan. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] The present invention provides Figure 1-6 A dust removal system for a waste concentrator is shown, which is used for dust removal in a waste concentrator material box 20 of the waste concentrator. The waste concentrator dust removal system comprises:

[0035] The dust collecting hopper 1 is installed at the air inlet of the dust collecting box 20 of the gangue selecting machine. A filter plate 4 is installed at the input end of the dust collecting hopper 1. The filter plate 4 includes a square metal frame and a plurality of metal strips. The plurality of metal strips are installed inside the square metal frame. The metal strips are parallel to the width direction of the square metal frame and are arranged in sequence along the length direction of the square metal frame. They are used for filtering dust and preventing the blown gangue or debris from entering the dust collecting hopper 1 and causing blockage. The lower front side of the dust collecting hopper 1 is provided with a filter plate 4. There is a baffle 5 to prevent the gangue from being blown directly into the dust hopper 1, and to prevent the high-speed material from being blown from impacting the air inlet, top plate and dust hopper 1 of the gangue separator box 20. An air outlet 6 is provided at the output end of the dust hopper 1. A flushing mechanism 7 is provided inside the dust hopper 1. The output end of the flushing mechanism 7 faces the filter plate 4, which is used to flush the filter plate 4 to prevent smaller particles from getting stuck in the filter plate 4 and causing blockage, thereby affecting the dust removal effect. A closable maintenance door is provided on one side of the dust hopper 1. 8, used for operating the flushing mechanism 7 in the dust hopper 1 and the maintenance of the flushing mechanism 7 and the filter screen plate 4. A rotatable guide plate 9 is provided at the lower side of the dust hopper 1. The guide plate 9 is rotatably mounted inside the material box 20 of the gangue separator. The rotating shaft of the guide plate 9 is provided at the lower part of the dust hopper 1 near its rear side and parallel to the rear side of the dust hopper 1. A gap is left between the rotating shaft of the guide plate 9 and the upper dust hopper 1. A gap is left between the rotating shaft of the guide plate 9 and the adjacent inner wall of the material box 20 of the gangue separator. The guide plate 9 is used to guide the discharge of debris filtered by the filter screen plate 4 or the cleaning water of the filter screen plate 4 when the dust removal is stopped. A vertically arranged partition plate is fixedly installed in the gangue separator box 20, which is arranged on the lower side of the rotating shaft of the guide plate 9, and divides the inner cavity of the gangue separator box 20 into a gangue unloading area and a debris discharge area, which will prevent debris or cleaning water from entering the gangue block collection bin at the bottom of the gangue separator box 20. The bottoms of the gangue unloading area and the debris discharge area are both opened, which are used for the discharge of gangue and debris respectively.

[0036] The screening mechanism 2 includes a sealing cover 201 and a screening drum 202. The screening drum 202 is rotatably installed inside the sealing cover 201 and can rotate by itself. A gap is left between the screening drum 202 and the inner wall of the sealing cover 201. One end of the screening drum 202 is sealed and rotatably connected to an induced draft duct. The other end of the induced draft duct is sealed and connected to the air outlet 6. The other end of the screening drum 202 is sealed and provided with a closable discharge door 10. The dust removal absorption material includes small gangue, dust and debris. The screening drum 202 is used to screen the absorption material. The small gangue and debris remain in the screening drum 202, and the dust is thrown into the sealing cover 201. The small gangue in the screening drum 202 can be used for sale after being removed from the dust, thereby reducing material loss and preventing the small gangue of the particle blocks from entering the dust collector 3 and colliding or scratching the dust blocking mechanism.

[0037] The dust collector 3 is used for absorbing and filtering dust, and the inner cavity of the sealing cover 201 is connected with the input end of the dust collector 3.

[0038] A mounting beam 11 is fixedly installed on the outside of the input end of the dust hopper 1, and the mounting beam 11 is located inside the material distribution box 20 of the slag separator. The dust hopper 1 is located outside the material distribution box 20 of the slag separator. The mounting beam 11 is installed on the material distribution box 20 of the slag separator by bolts to realize the detachable installation of the dust hopper 1. The filter plate 4 and the baffle 5 are both installed on the mounting beam 11 by bolts.

[0039] A plurality of reinforcing beams 12 are installed on the inner side of the baffle plate 5. A bolt mounting plate is provided at one end of the reinforcing beam 12 away from the baffle plate 5 for connecting with the inner wall or internal bracket of the gangue separator material box 20. The reinforcing beam 12 is used to reinforce the baffle plate 5 to improve its blocking strength. A plurality of reinforcing ribs 13 are provided on the inner or outer side surface of the baffle plate 5 to further improve its blocking strength.

[0040] The flushing mechanism 7 includes a pipe 701 and a nozzle 702. The nozzle 702 is arranged in plurality and connected to the lower side of the pipe 701. The pipe 701 is arranged in two pieces and are respectively located on both sides of the inside of the dust collecting hopper 1, avoiding the air outlet 6, so as to prevent fast-flowing dust or small gangue from hitting the pipe 701 and causing damage. The pipe 701 is externally connected to a booster pump, and the booster pump is externally connected to a water source for providing a high-pressure water source. A sealing cap 14 is threadedly installed on the nozzle 702 for covering the output end of the nozzle 702 to avoid blockage during dust removal. When the flushing mechanism 7 is working, the sealing cap 14 needs to be removed.

[0041] A maintenance port is provided on the dust hopper 1, and a maintenance door 8 is hinged on the dust hopper 1 for sealing the maintenance port. A first spring lock catch 15 is provided on the maintenance door 8 away from the hinged end, and a first locking block corresponding to the first spring lock catch 15 is provided on the dust hopper 1. The maintenance door 8 can be closed by locking the first spring lock catch 15 and the first locking block. Two first spring lock catches 15 and two first locking blocks are provided.

[0042] It also includes a first motor 16. Both ends of the rotating shaft of the guide plate 9 are provided with rotating connecting parts, which are used for the guide plate 9 to be rotatably installed inside the material dividing box 20 of the slag separator. The first motor 16 is located outside the material dividing box 20 of the slag separator, and the output end is connected to a rotating connecting part to drive the rotation of the guide plate 9.

[0043] It also includes a second motor 18, a gear ring 17 is provided on the outer side of the screening drum 202, and a gear is connected to the output end of the second motor 18. The gear is meshed with the gear ring 17 to drive the rotation of the screening drum 202. Limiting rings 21 are provided at both ends of the outside of the screening drum 202, and the lower side of a limiting ring 21 is fitted with two corresponding supporting wheels 22. The sealing cover 201, the second motor 18 and the supporting wheel 22 are all fixedly installed on the dust collector 3. The supporting wheel 22 supports the screening mechanism 2 and improves the installation stability of the screening mechanism 2. The gear ring 17, the limiting ring 21 and the supporting wheel 22 are all arranged on the outside of the sealing cover 201 to prevent dust from affecting its operation.

[0044] The input end to the output end of the screening mechanism 2 is inclined from top to bottom, which is convenient for the discharge of small gangue and debris in the screening drum 202. Half of the output end of the screening drum 202 is in a sealed state, and the other half is a semicircular discharge door 10. The discharge door 10 is hinged on the side close to the sealed state. A second spring lock 19 is installed on the side of the output end of the screening drum 202 away from the sealed state. The discharge door 10 is provided with a second locking block that is locked corresponding to the second spring lock 19. The second spring lock 19 is locked with the second locking block to realize the closing of the discharge door 10. A hook is provided on the side of the sealed state of the output end of the screening mechanism 2 away from the discharge door 10. When the discharge door 10 is opened, the hook and the second locking block are bound by a connecting rope to keep the discharge door 10 always in an open state, which is convenient for the discharge of small gangue and debris.

[0045] The dust collector 3 adopts a pulse dust collector, which includes a box body, a dust removal mechanism, an ash hopper 24, a pulse mechanism 25 and a fan 26. The ash hopper 24 is installed at the bottom of the box body to receive the dust filtered out by the dust removal mechanism. A discharge valve is provided at the output end of the ash hopper 24. The discharge valve adopts a gate valve for dust discharge. The pulse mechanism 25 is arranged on the top of the dust removal mechanism for pulse cleaning of the dust removal mechanism. The input end of the fan 26 is connected to the clean air output end of the dust collector 3 for inducing wind. The output end of the fan 26 is connected with a chimney for discharging clean air.

[0046] Working principle of the present invention:

[0047] During dust removal: the guide plate 9 is in a vertical state to avoid covering the input end of the dust collecting hopper 1; the fan 26 is started and the second motor 18 is started, and the fan 26 draws air to extract the dust caused by screening in the gangue separator box 20, and the dust enters the screening mechanism 2 after filtering out larger gangue and larger debris through the filter plate 4; the screening drum 202 rotates to screen the small gangue and debris carried in the dust, and the small gangue and debris remain in the screening drum 202, and the dust enters the dust collector 3 through the sealing cover 201, and after filtering and purification by the dust removal mechanism in the dust collector 3, the clean air is discharged from the chimney at the output end of the fan 26.

[0048] When the dust removal work is stopped: Before stopping the dust removal work, the first motor 16 drives the guide plate 9 to rotate, so that the guide plate 9 is located at the lower side of the dust collecting hopper 1, and the guide plate 9 is tilted from top to bottom from the end away from the rotating shaft to the rotating shaft end, and then the dust removal work is stopped, and the debris isolated by the filter plate 4 falls onto the guide plate 9, slides to the debris discharge area and is discharged from the gangue separator box 20.

[0049] The filter screen plate 4 is clogged: stop the dust removal work, the first motor 16 drives the guide plate 9 to rotate, so that the guide plate 9 is located at the lower side of the dust collecting hopper 1, and the guide plate 9 is tilted from top to bottom from the end away from the rotating shaft to the rotating shaft end, open the maintenance door 8, manually remove the sealing cap 14 on the nozzle 702, close the maintenance door 8, turn on the water source and the booster pump, flush the filter screen plate 4 with water to clear the blockage, and the sewage flows down under the guidance of the guide plate 9 to the debris discharge area and is discharged from the gangue separator material box 20.

[0050] Collection of small gangue in the screening mechanism 2: Stop dust removal, open the discharge door 10, and manually take out and collect the small gangue.

[0051] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust removal system for a gangue separator, characterized in that: include: A dust hopper (1), wherein a filter plate (4) is installed at the input end of the dust hopper (1), a baffle plate (5) is provided at the front side of the lower part of the dust hopper (1), an air outlet (6) is provided at the output end of the dust hopper (1), a flushing mechanism (7) is provided inside the dust hopper (1), the output end of the flushing mechanism (7) faces the filter plate (4), a closable maintenance door (8) is provided on one side of the dust hopper (1), a rotatable guide plate (9) is provided at the lower side of the dust hopper (1), a rotating shaft of the guide plate (9) is provided at the lower part of the dust hopper (1) near the rear side thereof and is parallel to the rear side of the dust hopper (1), and further comprising a first motor (16), both ends of the rotating shaft of the guide plate (9) are provided with rotating connecting members, and the output end of the first motor (16) is connected to a rotating connecting member for driving the guide plate (9) to rotate; A plurality of reinforcing beams (12) are installed on the inner side of the baffle (5); a bolt mounting plate is provided at one end of the reinforcing beam (12) away from the baffle (5); and a plurality of reinforcing ribs (13) are provided on the inner side or the outer side of the baffle (5); A screening mechanism (2), the screening mechanism (2) comprising a sealing cover (201) and a screening drum (202), the screening drum (202) being rotatably mounted inside the sealing cover (201) and being self-rotatable, one end of the screening drum (202) being sealed and connected to the air outlet (6) via a pipe, and the other end of the screening drum (202) being sealed and provided with a closable discharge door (10); The dust collector (3) is used for dust absorption and filtering, and the inner cavity of the sealing cover (201) is connected to the input end of the dust collector (3).

2. A dust removal system for a gangue concentrator according to claim 1, characterized in that: A mounting beam (11) is fixedly mounted on the outside of the input end of the dust collecting hopper (1) for detachable mounting of the dust collecting hopper (1), and the filter plate (4) and the baffle plate (5) are both mounted on the mounting beam (11) by means of bolts.

3. A dust removal system for a gangue concentrator according to claim 1, characterized in that: The flushing mechanism (7) comprises a pipeline (701) and a nozzle (702). The nozzles (702) are provided in plurality and connected to the lower side of the pipeline (701). A sealing cap (14) is threadedly mounted on the nozzle (702) for covering the output end of the nozzle (702).

4. A dust removal system for a gangue concentrator according to claim 1, characterized in that: The maintenance door (8) is hinged on the dust collecting hopper (1), a first spring lock buckle (15) is provided on the maintenance door (8) away from the hinged end, and a first lock block corresponding to and locked with the first spring lock buckle (15) is provided on the dust collecting hopper (1).

5. The dust removal system for a gangue concentrator according to claim 1 is characterized in that: It also includes a second motor (18), a gear ring (17) is provided on the outer side of the screening drum (202), and a gear is connected to the output end of the second motor (18), and the gear is meshingly connected to the gear ring (17).

6. A dust removal system for a gangue concentrator according to claim 1, characterized in that: The discharge door (10) is hinged at the output end of the screening drum (202), a second spring lock (19) is installed at the output end of the screening drum (202), and a second lock block corresponding to the second spring lock (19) is provided on the discharge door (10).

7. A dust removal system for a gangue concentrator according to claim 1, characterized in that: The dust collector (3) is a pulse dust collector, comprising a housing, a dust removal mechanism, an ash hopper (24), a pulse mechanism (25) and a fan (26), wherein a discharge valve is provided at the output end of the ash hopper (24), and a chimney is connected to the output end of the fan (26).

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