Novel negative pressure dust removal coal unloading warehouse

Abstract

The utility model relates to the technical field of coal unloading warehouses, in particular to a novel negative pressure dust removal coal unloading warehouse which comprises a vibration coal grate, a plurality of sets of coal unloading hoppers are arranged at the bottom of the vibration coal grate, inclined coal baffles are arranged on the two sides of the top end of each coal unloading hopper, triangular dust suction pipes are arranged on the inner sides of the coal baffles, and a plurality of sets of dust suction openings are formed in the bottoms of the triangular dust suction pipes. A spiral discharging machine is arranged at the bottom of the bag-type dust collector, and a discharging pipe is arranged at the bottom of the spiral discharging machine; the novel negative-pressure dust removal coal unloading warehouse has the beneficial effects that before a coal pulling vehicle enters the unloading space and starts to unload coal, the bag-type dust remover and the induced draft fan are started in advance, the butterfly valve of the unloading space is opened when the unloading space unloads the coal, and downward flowing airflow is formed above the unloading space in advance; in this way, flying dust can be sucked into the dust suction pipes on the two sides when the coal truck unloads coal, after the flying dust enters the bag-type dust collector, pulverized coal is separated from air, and the collected pulverized coal falls onto an underground belt conveyor and is collected and conveyed into a coal warehouse.

Description

Technical Field

[0001] The utility model relates to the technical field of coal unloading warehouses, in particular to a novel negative pressure dust removal coal unloading warehouse. Background Art

[0002] Coal chemical enterprises consume a large amount of coal. The coal is generally transported to the factory by train and car. When unloading coal by car, some coal trucks can unload by themselves, while others need loaders to assist in unloading, depending on the type of truck. When unloading, the raw coal falls under the action of gravity, which will cause a lot of dust, especially when the coal has fine particle size and less moisture. Dust reduction measures generally adopt humidification measures such as fog cannons, micro-mist dust suppression, and dry fog dust suppression. These measures can make the floating dust settle quickly, but can only reduce the diffusion range of dust in the coal unloading warehouse within a certain range. There is still a lot of floating dust on the site, which has an adverse effect on the on-site environmental hygiene and the health of on-site personnel. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of negative pressure dust removal coal unloading warehouse to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vibrating coal grate, wherein a plurality of coal unloading hoppers are provided at the bottom of the vibrating coal grate, inclined coal retaining plates are provided on both sides of the top of the coal unloading hoppers, a triangular dust suction pipe is provided on the inner side of the coal retaining plate, and a plurality of dust suction ports are provided at the bottom of the triangular dust suction pipe; and a bag dust collector, wherein a spiral discharger is provided at the bottom of the bag dust collector, and a discharge pipe is provided at the bottom of the spiral discharger.

[0005] Preferably, a discharge port is provided at the bottom of the coal unloading hopper, the bottom of the discharge port is connected to a vibrating coal feeder, and the outlet of the vibrating coal feeder is arranged above the belt conveyor. The coal in the coal unloading hopper can enter the vibrating coal feeder through the discharge port, and then be sent to the belt conveyor for transportation by the vibrating coal feeder.

[0006] Preferably, both sides of the triangular dust suction pipe are connected to the main dust suction pipe, which connects the triangular dust suction pipes arranged on both sides of the top of multiple groups of coal unloading hoppers. One side of the main dust suction pipe is connected to the inlet of the bag dust collector. The bag dust collector can control the triangular dust suction pipe to perform dust suction through the dust suction port through the main dust suction pipe.

[0007] Preferably, a butterfly valve is provided at the connection between the triangular dust suction pipe and the dust suction main pipe, and the butterfly valve can control the opening and closing of the connection between the dust suction main pipe and the dust suction port.

[0008] Preferably, one side of the bag-type dust collector is connected with a induced draft fan through a connecting pipe, the induced draft fan can form vacuum negative pressure in the bag-type dust collector through suction, and the bag-type dust collector can suck the coal dust into the bag-type dust collector through the dust suction main pipe.

[0009] Preferably, the spiral unloading machine is connected with a discharging pipe, and the opening of the discharging pipe is arranged above the belt conveyor, so that the spiral unloading machine can input the coal dust into the belt conveyor again through the discharging pipe.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The utility model discloses a novel negative pressure dust removal coal unloading warehouse, before the coal car enters the unloading position and starts to unload coal, the bag-type dust collector and the induced draft fan are opened in advance, the butterfly valve of the unloading position is opened, the airflow flowing downward is formed above the unloading position, so that the dust during the unloading of the coal car is sucked into the dust suction pipes on the two sides, the coal dust and the air are separated after entering the bag-type dust collector, the collected coal dust falls on the underground belt conveyor and is collected into the coal warehouse. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the plane arrangement schematic diagram of the utility model negative pressure dust removal coal unloading warehouse;

[0013] Figure 2 It is the three-dimensional structure schematic diagram of the utility model negative pressure dust removal coal ununload warehouse;

[0014] Figure 3 It is the coal unloading hopper structure schematic diagram of the utility model negative pressure dust removal coal unloading warehouse.

[0015] In the drawing: vibration coal grate 1, coal baffle 2, coal unloading hopper 3, discharge port 4, dust suction port 5, triangular dust suction pipe 6, vibration coal feeder 7, belt conveyor 8, discharging pipe 9, bag-type dust collector 10, induced draft fan 11, dust suction main pipe 12, spiral unloading machine 13, butterfly valve 14. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme of the utility model clear, complete description, and the advantage is more clear and clear, the following combining the drawing to the utility model embodiment carries out further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, instead of all the embodiment, is used to explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without doing the creative labor, belong to the scope of the protection of the utility model.

[0017] Please refer to Figures 1 to 3The utility model provides a technical solution: a vibrating coal grate 1, a plurality of coal unloading hoppers 3 are arranged at the bottom of the vibrating coal grate 1, and inclined coal retaining plates 2 are arranged on both sides of the top of the coal unloading hopper 3, and a triangular dust suction pipe 6 is arranged on the inner side of the coal retaining plate 2, and a plurality of dust suction ports 5 are provided at the bottom of the triangular dust suction pipe 6; and a bag dust collector 10, a spiral discharger 13 is arranged at the bottom of the bag dust collector 10, and a discharge pipe 9 is arranged at the bottom of the spiral discharger 13; a discharge port 4 is provided at the bottom of the coal unloading hopper 3, and the bottom of the discharge port 4 is connected to the vibrating coal feeder 7, and the outlet of the vibrating coal feeder 7 is arranged above the belt conveyor 8, and the coal in the coal unloading hopper 3 can enter the vibrating coal feeder 7 through the discharge port 4, and then be sent to the belt conveyor 8 for transportation by the vibrating coal feeder 7; the two sides of the triangular dust suction pipe 6 are connected to the dust suction main pipe 12, and the dust suction main pipe 12 connects the multiple groups of coal unloading hoppers 3 to the top of the bag dust collector 10 The triangular dust suction pipes 6 arranged on both sides of the end are connected, and one side of the dust suction main pipe 12 is connected to the inlet of the bag dust collector 10. The bag dust collector 10 can control the triangular dust suction pipe 6 to suction dust through the dust suction port 5 through the dust suction main pipe 12; a butterfly valve 14 is provided at the connection between the triangular dust suction pipe 6 and the dust suction main pipe 12, and the butterfly valve 14 can control the opening and closing of the connection between the dust suction main pipe 12 and the dust suction port 5; one side of the bag dust collector 10 is connected to the induced draft fan 11 through a connecting pipe, and the induced draft fan 11 can form a vacuum negative pressure in the bag dust collector 10 by sucking air, so that the bag dust collector 10 sucks the coal dust into the bag dust collector 10 through the dust suction main pipe 12; the spiral unloader 13 is connected to the discharge pipe 9, and the opening of the discharge pipe 9 is arranged above the belt conveyor 8. The spiral unloader 13 can input the coal dust to the belt conveyor 8 again through the discharge pipe 9.

[0018] In actual use, first turn on the bag dust collector 10 and the induced draft fan 11, and then according to the coal unloading hopper 3 where the coal pulling car is located, screw the butterfly valve 14 provided at the connection between the triangular dust suction pipe 6 on both sides of the top of the coal unloading hopper 3 and the dust suction main pipe 12, open the sealing of the triangular dust suction pipe 6 and the dust suction main pipe 12, at this time, a downward air flow is formed above the coal unloading hopper 3, and then the coal unloading car starts to unload coal. At this time, the dust generated by the coal unloading is sucked into the triangular dust suction pipe 6 through the dust suction port 5 opened at the bottom of the triangular dust suction pipe 6. The size of the dust suction port 5 becomes smaller from the middle of the coal unloading hopper 3 to the two ends, so that the whole triangular dust suction pipe 6 is The suction force generated by the triangular dust suction pipe 6 is evenly distributed, and the large-particle coal blocks are blocked by the coal blocking plates 2 on both sides of the top of the coal unloading hopper 3 to prevent the large particles from being directly sucked into the dust suction port 5 and blocking the dust suction port 5. The coal blocks are then transported to the belt conveyor 8 through the vibrating coal feeder 7 connected to the bottom of the discharge port 4 at the bottom of the coal unloading hopper 3, and the coal powder sucked in by the triangular dust suction pipe 6 enters the bag dust collector 10 through the dust suction main pipe 12. The air inhaled by the bag dust collector 10 is separated from the coal powder, and the classified coal powder will fall on the belt conveyor 8 again through the discharge pipe 9 at the bottom of the spiral unloader 13.

[0019] Although the above describes the illustrative specific implementation methods of the present application so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific implementation methods. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations based on the concept of the present application are protected.

Claims

1. A new type of negative pressure dust removal coal unloading bunker, characterized by: include: A vibrating coal grate (1), wherein a plurality of coal discharge hoppers (3) are provided at the bottom of the vibrating coal grate (1), inclined coal retaining plates (2) are provided on both sides of the top of the coal retaining plates (3), a triangular dust suction pipe (6) is provided on the inner side of the coal retaining plates (2), and a plurality of dust suction ports (5) are provided at the bottom of the triangular dust suction pipe (6); and A bag dust collector (10) is provided at the bottom of the bag dust collector (10), and a screw discharger (13) is provided at the bottom of the screw discharger (13). A discharge pipe (9) is provided at the bottom of the screw discharger (13).

2. A new type of negative pressure dust removal coal unloading bunker according to claim 1, characterized in that: The bottom of the coal unloading hopper (3) is provided with a discharge port (4), the bottom of the discharge port (4) is connected to a vibrating coal feeder (7), the outlet of the vibrating coal feeder (7) is arranged above the belt conveyor (8), and the coal in the coal unloading hopper (3) can enter the vibrating coal feeder (7) through the discharge port (4), and then be sent to the belt conveyor (8) by the vibrating coal feeder (7) for transportation.

3. A new type of negative pressure dust removal coal unloading bunker according to claim 2, characterized in that: Both sides of the triangular dust suction pipe (6) are connected to a dust suction main pipe (12), and the dust suction main pipe (12) connects the triangular dust suction pipes (6) arranged on both sides of the top of the plurality of coal unloading hoppers (3). One side of the dust suction main pipe (12) is connected to the inlet of the bag dust collector (10), and the bag dust collector (10) can control the triangular dust suction pipe (6) to perform dust suction through the dust suction port (5) through the dust suction main pipe (12).

4. A new type of negative pressure dust removal coal unloading bunker according to claim 3, characterized in that: A butterfly valve (14) is provided at the connection between the triangular dust suction pipe (6) and the dust suction main pipe (12), and the butterfly valve (14) can control the opening and closing of the connection between the dust suction main pipe (12) and the dust suction port (5).

5. A new type of negative pressure dust removal coal unloading bunker according to claim 4, characterized in that: One side of the bag dust collector (10) is connected to an induced draft fan (11) through a connecting pipe. The induced draft fan (11) can form a vacuum negative pressure in the bag dust collector (10) by sucking air, so that the bag dust collector (10) sucks coal dust into the bag dust collector (10) through the dust suction main pipe (12).

6. The novel negative pressure dust removal coal unloading bunker according to claim 5 is characterized by: The spiral discharger (13) is connected to a discharge pipe (9), the opening of which is arranged above the belt conveyor (8). The spiral discharger (13) can input the coal dust back to the belt conveyor (8) through the discharge pipe (9).

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