Coal sorting device capable of achieving multi-stage sorting

Abstract

The utility model discloses a coal sorting device capable of multi-stage sorting, which relates to the technical field of coal sorting and comprises a frame, a sorting roller rotatably mounted on the frame, a discharge chute arranged below the sorting roller, a feeding hopper arranged at one end of the sorting roller, and a dust collection mechanism arranged below the feeding hopper. The dust collection mechanism comprises dust collection shells fixedly installed on the two sides of the feeding hopper, air suction pipelines are connected to the dust collection shells, a mixing cabin is arranged at the tail ends of the air suction pipelines, glue nozzles are fixedly installed in the mixing cabin, a driving motor is fixedly installed on one side of the mixing cabin, and a driving shaft is fixedly installed at the output tail end of the driving motor. Fan blades are fixedly mounted on the driving shaft, and a granulating mechanism is arranged below the mixing cabin. According to the coal sorting device capable of achieving multi-stage sorting, through cooperative use of the dust collection mechanism and the pelletizing mechanism, pulverized coal can be made into small particles, the pulverized coal can be recycled conveniently, and pollution of the pulverized coal to the environment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coal sorting technology, specifically a coal sorting device capable of multi-stage sorting. Background Technology

[0002] Coal is a carbon-rich, solid, combustible organic sedimentary rock primarily formed from plant remains through coalification. It contains a certain amount of minerals, with an ash content of less than or equal to 50%. Coal is one of the most abundant fossil fuels on Earth and is widely used in various industries, including power generation, steel, chemicals, and building materials. As the primary fuel for thermal power generation, coal provides a large amount of electricity for industrial production and residential use. Simultaneously, in steel production, coal plays a crucial role in providing a high-temperature environment and acting as a reducing agent. Furthermore, coal is an important raw material for chemical products, used in the production of synthetic ammonia, methanol, and other chemical products.

[0003] Coal sorting is the application of mineral processing technology in the coal industry, aiming to improve coal quality and utilization. In existing technologies, sorting drums are typically used to separate coal. However, during this process, a large amount of coal dust often adheres to the surface of the coal. When the sorting drum operates, this coal dust adhering to the coal surface is easily thrown out and dispersed into the air. This phenomenon not only affects the sorting effect but also leads to serious environmental pollution problems. The coal dust dispersed in the air not only pollutes the surrounding environment but may also adversely affect the health of operators. Utility Model Content

[0004] The purpose of this invention is to provide a coal sorting device capable of multi-stage sorting, in order to solve the problem that coal dust easily disperses into the air in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coal sorting device capable of multi-stage sorting, comprising a frame, a sorting drum rotatably mounted on the frame, a discharge chute below the sorting drum, a feeding hopper at one end of the sorting drum, a dust collection mechanism below the feeding hopper, the dust collection mechanism comprising a dust collection housing fixedly mounted on both sides of the feeding hopper, an air suction pipe connected to the dust collection housing, a mixing chamber at the end of the air suction pipe, a glue nozzle fixedly mounted inside the mixing chamber, a drive motor fixedly mounted on one side of the mixing chamber, a drive shaft fixedly mounted at the output end of the drive motor, fan blades fixedly mounted on the drive shaft, and a granulation mechanism below the mixing chamber.

[0006] Preferably, the dust collection housing has a dust collection port, the mixing chamber has a retainer, and the drive shaft is rotatably mounted in the mixing chamber via the retainer.

[0007] Preferably, the output end of the drive motor is provided with a coupling, and the drive shaft is fixed to the output end of the drive motor through the coupling.

[0008] Preferably, one end of the suction pipe is connected to the dust collection housing, and the other end of the suction pipe is connected to the mixing chamber. The fan blade is movably installed in the mixing chamber via a drive shaft.

[0009] Preferably, the granulation mechanism includes a feed funnel connected to the mixing chamber, a cylinder connected to the lower end of the feed funnel, an extrusion screw rotatably installed inside the cylinder, a perforated end cap fixedly installed at the front end of the cylinder, a scraper rotatably installed at the perforated end cap, a horizontal drive shaft connected to the extrusion screw, a vertical drive shaft above the horizontal drive shaft, and helical gears on the drive shaft, the horizontal drive shaft, and the vertical drive shaft, with the helical gears meshing together in pairs.

[0010] Preferably, a speed reducer is provided at the connection between the horizontal drive shaft and the extrusion screw.

[0011] Preferably, the barrel is provided with a connection interface, the feed funnel is connected to the barrel through the connection interface, one end of the extrusion screw is provided with a fixing groove, and the scraper is installed on one end of the extrusion screw through the fixing groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, the operation of the drive motor enables the drive shaft to rotate, which in turn drives the fan blades to rotate within the mixing chamber. This process generates a negative pressure effect within the mixing chamber. During the coal's descent, this negative pressure effect draws the coal dust contained in the coal into the mixing chamber. Simultaneously, by precisely controlling the spraying of the glue nozzle, the glue is sprayed out and combines with the coal dust to form coal slurry. This process effectively prevents the coal dust from drifting in the air and significantly reduces the degree of coal dust pollution to the environment.

[0014] 2. In this application, the coal slurry formed by mixing the glue and coal powder will be deposited in the cylinder of the machine. At this time, the movement of the drive shaft can cause the vertical transmission shaft to rotate, which in turn drives the horizontal transmission shaft to rotate. Through this series of transmission mechanisms, the extrusion screw can rotate and discharge the coal slurry through the perforated end cover. At the same time as the coal slurry is discharged, the rotation of the scraper cuts the extruded coal slurry into fine particles, which facilitates the recycling of coal powder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the dust collection mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the granulation mechanism of this utility model.

[0019] Labels in the diagram: 1. Frame; 2. Discharge chute; 3. Sorting roller; 4. Feeding hopper; 5. Dust collection mechanism; 501. Dust collection housing; 502. Dust collection port; 503. Suction pipe; 504. Drive shaft; 505. Fan blade; 506. Glue nozzle; 507. Drive motor; 508. Mixing chamber; 6. Granulation mechanism; 601. Helical gear; 602. Vertical drive shaft; 603. Horizontal drive shaft; 604. Extrusion screw; 605. Feed funnel; 606. Barrel; 607. Perforated end cap; 608. Scraper. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a coal sorting device capable of multi-stage sorting, including a frame 1, a sorting drum 3 rotatably mounted on the frame 1, a discharge chute 2 below the sorting drum 3, a feeding hopper 4 at one end of the sorting drum 3, a dust collection mechanism 5 below the feeding hopper 4, and a granulation mechanism 6 below the mixing chamber 508. Through the combined use of the dust collection mechanism 5 and the granulation mechanism 6, coal powder can be made into small particles, which facilitates the recycling of coal powder and reduces the pollution of coal powder to the environment.

[0022] like Figure 2 and Figure 3As shown, the dust collection mechanism 5 includes a dust collection housing 501 fixedly installed on both sides of the feeding hopper 4. A suction pipe 503 is connected to the dust collection housing 501. A mixing chamber 508 is provided at the end of the suction pipe 503. A glue nozzle 506 is fixedly installed in the mixing chamber 508. A drive motor 507 is fixedly installed on one side of the mixing chamber 508. A drive shaft 504 is fixedly installed at the output end of the drive motor 507. A fan blade 505 is fixedly installed on the drive shaft 504. A dust collection port 502 is opened on the dust collection housing 501. A retainer is provided in the mixing chamber 508. The drive shaft 504 is rotatably installed in the mixing chamber 508 through the retainer. A coupling is provided at the output end of the drive motor 507. The drive shaft 504 is fixed to the output end of the drive motor 507 through the coupling.

[0023] Specifically, the drive motor 507 can drive the drive shaft 504 to rotate. After the drive shaft 504 rotates, it will drive the fan blade 505 to rotate inside the mixing chamber 508, thereby creating a negative pressure inside the mixing chamber 508. During the coal falling process, the coal dust contained in the coal is sucked into the mixing chamber 508. When the coal dust is sucked into the mixing chamber 508, the glue nozzle 506 can be controlled to spray glue. The sprayed glue will combine with the coal dust to form coal slurry, preventing the coal dust from drifting into the air and reducing the pollution of coal dust to the environment.

[0024] like Figure 2 and Figure 4 As shown, the pelletizing mechanism 6 includes a feed hopper 605 connected to the mixing chamber 508. The lower end of the feed hopper 605 is connected to a cylinder 606. An extrusion screw 604 is rotatably installed inside the cylinder 606. A perforated end cap 607 is fixedly installed at the front end of the cylinder 606. A scraper 608 is rotatably installed at the perforated end cap 607. A horizontal drive shaft 603 is connected to the extrusion screw 604. A vertical drive shaft 602 is provided above the horizontal drive shaft 603. Helical gears 601 are provided on the drive shaft 504, the horizontal drive shaft 603, and the vertical drive shaft 602, and the helical gears 601 mesh together in pairs.

[0025] Specifically, the adhesive combines with the coal powder to form coal slurry, which falls into the barrel 606. At this time, the drive shaft 504 can drive the vertical drive shaft 602 to rotate. After the vertical drive shaft 602 rotates, it will drive the horizontal drive shaft 603 to rotate, thereby causing the extrusion screw 604 to rotate. The extruded coal slurry is discharged through the perforated end cover 607. During the discharge of the coal slurry, the scraper 608 will rotate, thereby cutting the extruded coal slurry into small particles, which facilitates the recycling of coal powder.

[0026] Working principle: During use, coal is poured into the feeding hopper 4. The coal in the feeding hopper 4 falls into the sorting drum 3 for screening, allowing coal blocks of different sizes to be discharged through the corresponding unloading chute 2. The drive motor 507 can be started when the coal falls from the feeding hopper 4. Starting the drive motor 507 will drive the drive shaft 504 to rotate, which in turn will drive the fan blades 505 to rotate within the mixing chamber 508, creating a negative pressure within the mixing chamber 508. During the coal's descent, coal dust contained in the coal is drawn into the mixing chamber 508. When the coal dust is drawn into the mixing chamber 508, the glue nozzle 506 can be controlled. The sprayed glue combines with the coal powder to form coal slurry, which falls into the feed hopper 605 and enters the barrel 606. When the coal enters the barrel 606, the drive shaft 504 drives the vertical drive shaft 602 to rotate. The rotation of the vertical drive shaft 602 drives the horizontal drive shaft 603 to rotate, which in turn drives the extrusion screw 604 to rotate. When the extrusion screw 604 rotates, it squeezes the coal slurry through the perforated end cover 607 and discharges it. During the discharge process, the scraper 608 rotates to cut the extruded coal slurry into small particles, which facilitates the recycling of coal powder.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A coal sorting device capable of multi-stage sorting, comprising a frame (1), on which a sorting drum (3) is rotatably mounted, a discharge chute (2) is provided below the sorting drum (3), and a feeding hopper (4) is provided at one end of the sorting drum (3), characterized in that: A dust collection mechanism (5) is provided below the feeding hopper (4). The dust collection mechanism (5) includes a dust collection housing (501) fixedly installed on both sides of the feeding hopper (4). An air suction pipe (503) is connected to the dust collection housing (501). A mixing chamber (508) is provided at the end of the air suction pipe (503). A glue nozzle (506) is fixedly installed inside the mixing chamber (508). A drive motor (507) is fixedly installed on one side of the mixing chamber (508). A drive shaft (504) is fixedly installed at the output end of the drive motor (507). A fan blade (505) is fixedly installed on the drive shaft (504). A granulation mechanism (6) is provided below the mixing chamber (508).

2. The coal sorting device capable of multi-stage sorting according to claim 1, characterized in that: The dust collection housing (501) has a dust collection port (502), the mixing chamber (508) has a retainer, and the drive shaft (504) is rotatably mounted in the mixing chamber (508) through the retainer.

3. A coal sorting device capable of multi-stage sorting according to claim 2, characterized in that: The output end of the drive motor (507) is provided with a coupling, and the drive shaft (504) is fixed to the output end of the drive motor (507) through the coupling.

4. A coal sorting device capable of multi-stage sorting according to claim 3, characterized in that: One end of the suction pipe (503) is connected to the dust collection housing (501), and the other end of the suction pipe (503) is connected to the mixing chamber (508). The fan blade (505) is movably installed in the mixing chamber (508) via the drive shaft (504).

5. A coal sorting device capable of multi-stage sorting according to claim 1, characterized in that: The granulation mechanism (6) includes a feed funnel (605) connected to the mixing chamber (508). The lower end of the feed funnel (605) is connected to a cylinder (606). An extrusion screw (604) is rotatably installed inside the cylinder (606). A perforated end cap (607) is fixedly installed at the front end of the cylinder (606). A scraper (608) is rotatably installed at the perforated end cap (607). A horizontal drive shaft (603) is connected to the extrusion screw (604). A vertical drive shaft (602) is provided above the horizontal drive shaft (603). Helical gears (601) are provided on the drive shaft (504), the horizontal drive shaft (603), and the vertical drive shaft (602), and the helical gears (601) mesh together in pairs.

6. A coal sorting device capable of multi-stage sorting according to claim 5, characterized in that: A speed reducer is provided at the connection between the horizontal drive shaft (603) and the extrusion screw (604).

7. A coal sorting device capable of multi-stage sorting according to claim 5, characterized in that: The barrel (606) is provided with a connection interface, the feed hopper (605) is connected to the barrel (606) through the connection interface, the extrusion screw (604) is provided with a fixing groove at one end, and the scraper (608) is installed at one end of the extrusion screw (604) through the fixing groove.

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