Coal gangue powder grinding treatment equipment

Abstract

The utility model relates to a coal gangue grinding treatment equipment belongs to solidification treatment equipment field, specifically including processing bin and feed channel, be provided with feeding assembly in feed channel, and feeding assembly makes coal gangue enter processing bin, be provided with primary crushing subassembly and secondary crushing subassembly in processing bin, and coal gangue passes primary crushing subassembly and secondary crushing subassembly in proper order, and feed channel is butt joint and has air supply device, and air supply device passes feed channel and transports airflow to processing bin, and processing bin is connected with reflux pipeline, and airflow enters reflux pipeline after passing secondary crushing subassembly, and reflux pipeline communicates with feed channel, compared with prior art, the beneficial effects of the utility model are: in the process of conveying coal gangue, can take away part of moisture carried by coal gangue through flowing airflow, thereby reducing the viscosity of grinding or clay, and reducing adhesion.

Description

Technical Field

[0001] This utility model belongs to the field of solidified material treatment equipment, specifically relating to a coal gangue grinding and processing equipment. Background Technology

[0002] Coal gangue is a solid waste generated during coal mining, washing, and processing. It is one of the largest industrial solid wastes in my country. When coal gangue is first mined, most of it is large in volume and needs to be crushed and ground. However, because some coal gangue contains moisture and clay, clay and powder can easily adhere to the processing equipment during the crushing and grinding process, thus affecting the grinding effect. Utility Model Content

[0003] The purpose of this utility model is to provide a coal gangue grinding and processing equipment that can be used to grind coal gangue and reduce the adhesion of the processing equipment during the grinding process.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is a coal gangue grinding and processing equipment, including a processing chamber and a conveying channel. A feeding component is installed in the conveying channel to allow the coal gangue to enter the processing chamber. A primary crushing component and a secondary crushing component are installed in the processing chamber. The coal gangue passes through the primary crushing component and the secondary crushing component in sequence. An air supply device is connected to the conveying channel. The air supply device delivers airflow into the processing chamber through the conveying channel. A return pipe is connected to the processing chamber. The airflow enters the return pipe after passing through the secondary crushing component. The return pipe is connected to the conveying channel.

[0005] Furthermore, the feeding assembly includes a driving assembly and a guide plate, both of which are inclined. The guide plate is located below the driving assembly, and the coal gangue passes between the guide plate and the driving assembly.

[0006] Furthermore, a feed port is provided on the guide plate, and a feed plate is provided below the guide plate. The lower end of the feed plate passes through the processing chamber and is located above the secondary crushing component.

[0007] Furthermore, the material driving assembly includes an inclined integrated plate with an elongated notch, within which a conveyor belt is installed, and the conveyor belt is connected to the integrated plate via guide rollers.

[0008] Furthermore, the high end of the integrated plate is connected to a positioning shaft, and the integrated plate can rotate around the positioning shaft. The integrated plate is connected to an elastic reset component, and the low end of the integrated plate is connected to a support rod. Both the support rod and the positioning shaft are fixed to the inner wall of the material conveying channel.

[0009] Furthermore, electric heating tubes are installed on the inner wall of the conveying channel to heat the coal gangue and airflow passing through the conveying channel.

[0010] Furthermore, a high-level guide plate is installed inside the processing chamber. After the airflow enters the processing chamber, it comes into contact with the high-level guide plate, which causes the airflow to turn and flow towards the primary crushing component.

[0011] Furthermore, a low-level flow guide plate is also installed inside the processing chamber. The low-level flow guide plate is located below the secondary crushing component and guides the airflow to flow towards the return pipe.

[0012] Furthermore, a cover plate is installed inside the processing chamber, which is connected to the return pipe. The airflow passes under the cover plate, and a baffle mesh is installed at the connection between the cover plate and the return pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are: during the transportation of coal gangue, the flowing air can remove some of the moisture carried by the coal gangue, thereby reducing the stickiness of the powder or clay and reducing adhesion.

[0014] Even if some clay adheres to the crushing components, the flowing airflow dries the components, causing the clay to dry. As the coal gangue continues to be crushed, the clay can be separated from the crushing components, thus avoiding affecting the crushing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the material driving component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the integrated board structure of this utility model;

[0018] Figure 4 This is a schematic diagram showing the connection between the feed pipe and the drive rod of this utility model;

[0019] Figure 5 This is a schematic diagram of the limiting sleeve structure of this utility model;

[0020] Figure 6 This is a schematic diagram showing the connection between the cover plate and the low-position drainage plate of this utility model;

[0021] Among them, 1-processing chamber, 2-feeding pipe, 3-material conveying channel, 4-primary crushing component, 5-secondary crushing component, 6-air supply device, 7-material driving component, 8-guide plate, 9-integrated plate, 10-notch, 11-guide roller, 12-conveyor belt, 13-positioning shaft, 14-support rod, 15-arc opening, 16-drive rod, 17-limiting sleeve, 18-feeding plate, 19-flow port, 20-high-level diversion plate, 21-diversion channel, 22-low-level diversion plate, 23-return pipe, 24-cover plate. Detailed Implementation

[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] See Figure 1 As shown, a coal gangue grinding and processing device includes a processing chamber 1, the interior of which has a processing cavity. A feed pipe 2 is installed on the processing chamber 1, and the interior space of the feed pipe 2 is a conveying channel 3. A feeding assembly is installed in the conveying channel 3. A hopper 25 is connected to the feed pipe 2. Coal gangue enters the conveying channel 3 through the hopper 25 and then passes through the feeding assembly in the conveying channel 3 to enter the processing chamber 1. A primary crushing assembly 4 and a secondary crushing assembly 5 are installed inside the processing chamber 1. The primary crushing component 4 and the secondary crushing component 5 are arranged vertically, with the primary crushing component 4 located above the secondary crushing component 5. After the coal gangue enters the internal space of the processing chamber 1, it first passes through the primary crushing component 4, where it performs preliminary crushing. Then, under its own gravity, the pre-crushed coal gangue falls onto the secondary crushing component 5. Upon contact with the secondary crushing component 5, the secondary crushing component 5 further crushes the coal gangue, thereby achieving the purpose of crushing the coal gangue.

[0024] During the crushing process of coal gangue, since some coal gangue contains moisture, in order to prevent the powder or clay produced after crushing from adhering to the equipment, an air supply device 6 is installed in the conveying channel 3. The air supply device 6 is located at the end of the conveying channel 3. The air supply device 6 delivers airflow into the processing bin 1. That is, when the coal gangue moves into the processing bin 1, the airflow generated by the air supply device 6 will pass through the coal gangue. At this time, the flowing airflow carries away some of the moisture in the coal gangue, making the crushed coal gangue powder relatively dry.

[0025] See Figures 1 to 5As shown, the feeding assembly includes a driving assembly 7 and a guide plate 8, both of which are inclined, meaning that the ends of both near the processing chamber 1 are at a low position. The guide plate 8 is located below the driving assembly 7, forming a material passage area between the guide plate 8 and the driving assembly 7. The extension line of the driving assembly 7 intersects with the guide plate 8, meaning that the driving assembly 7 and the guide plate 8 are not parallel to each other. When the coal gangue enters the filtration area, the driving assembly 7 applies a pushing force to the coal gangue, allowing the coal gangue to pass between the guide plate 8 and the driving assembly 7.

[0026] The material driving assembly 7 includes an inclined integrated plate 9 with a long strip-shaped notch 10 extending from the lower end to the higher end. Several guide rollers 11 are arranged within the notch 10 along its length. A conveyor belt 12 is connected to the guide rollers 11. The inner side of the conveyor belt has toothed grooves, and the circumferential surface of the guide rollers 11 has protruding teeth. The guide rollers 11 can move the conveyor belt 12, thus connecting the conveyor belt 12 to the integrated plate 9. The integrated plate 9 and the guide plate 8 form an angle of 30-45°. When the coal gangue comes into contact with the conveyor belt 12 on the integrated plate 9, the movement of the conveyor belt 12 will drive the coal gangue to move, causing it to pass under the integrated plate 9.

[0027] A positioning shaft 13 is connected to the high end of the integrated plate 9. The positioning shaft 13 is fixed to the side surface of the conveying channel 3. The integrated plate 9 can rotate around the positioning shaft 13. An elastic reset member can be connected between the integrated plate 9 and the positioning shaft 13 or the conveying channel 3. The elastic reset member can be a torsion spring or a spring, which is used to make the low end of the integrated plate 9 subject to a downward moving force. A support rod 14 is also provided on the side surface of the conveying channel 3. The support rod 14 supports the integrated plate 9. A straight groove is provided at the low end of the integrated plate 9. When the support rod 14 is located in the straight groove of the integrated plate 9, the support rod 14 is connected to the integrated plate 9 and supports the integrated plate 9. In this way, when the coal gangue is fed into the processing bin 1, if the coal gangue is too large, the low end of the integrated plate 9 will move upward as the coal gangue passes under the low end of the integrated plate 9, so that the larger coal gangue can pass smoothly.

[0028] An arc-shaped opening 15 is provided on the outer wall of the feed pipe 2. A drive rod 16 passes through the arc-shaped opening 15. The inner end of the drive rod 16 is connected to the guide roller 11 at the far end. A drive motor is connected to the outer end of the drive rod 16. The drive motor is mounted on a limiting sleeve 17, which is fitted onto the feed pipe 2. A limiting protrusion is provided on the inner side of the limiting sleeve 17. The limiting protrusion is located inside the arc-shaped opening 15. When the low end of the integrated plate 9 moves downward in an arc-shaped trajectory, the limiting sleeve 17 and the drive motor move in an arc-shaped trajectory accordingly. At this time, the drive rod 16 moves within the arc-shaped opening 15.

[0029] To increase crushing efficiency, a feed port is provided on the guide plate 8, and a feed chute 18 is provided below the guide plate 8. The feed chute 18 is located below the feed pipe 2, and a long strip-shaped flow port 19 is provided on the feed pipe 2. Side guard plates are connected to both sides of the feed chute 18. The two side guard plates, the feed chute 18, and the feed pipe 2 form a diversion channel 21. Arc-shaped displacement ports are provided on the side guard plates, and the lower part of the limiting sleeve passes through the displacement ports on the side guard plates. Coal gangue passes through the side guard plates. During the movement of the guide plate 8, small coal gangue particles that can pass through the feed port will fall onto the feed plate 18 and slide along the length of the feed plate 18. At this time, the coal gangue flows in the diversion channel 21. A low-level inlet is provided on the processing chamber 1. The lower end of the feed plate 18 passes through the low-level inlet on the processing chamber 1 and extends to the top of the secondary crushing component 5, so that the small coal gangue particles can be directly crushed at the secondary crushing component 5.

[0030] Based on the above embodiments, in order to improve the drying effect of coal gangue, an electric heating tube is installed on the inner wall of the conveying channel 3. The electric heating tube heats the space inside the conveying channel 3. When the coal gangue and the airflow pass through the conveying channel 3, the coal gangue and the airflow can be heated, thereby improving the drying effect of the coal gangue.

[0031] See Figure 1 and Figure 6As shown, in order to enable the heated airflow to also heat and dry the crushed coal gangue, a high-level guide plate 20 and a low-level guide plate 22 are installed inside the processing chamber 1. Both the high-level guide plate 20 and the low-level guide plate 22 are curved plates. The high-level guide plate 20 is located above the primary crushing component 4. After the hot airflow enters the processing chamber 1, the airflow impacts and contacts the inner curved surface of the high-level guide plate 20. At this time, the high-level guide plate 20 guides the airflow, allowing the hot airflow to enter the processing chamber 1. The airflow can be redirected and flows towards the primary crushing component 4. After passing through the primary crushing component 4, the heated airflow comes into contact with the crushed coal gangue. At this time, the heated airflow dries the initially crushed coal gangue. Then, the heated airflow continues to flow towards the secondary crushing component 5. After passing through the secondary crushed coal gangue, the heated airflow dries the secondary crushed coal gangue. The low-level guide plate 22 is located below the secondary crushing component 5. After the coal gangue falls, it will fall onto the low-level guide plate 22. On the inner curved surface of plate 2, similarly, after the hot airflow flows downward through the secondary crushing component 5, the hot airflow also contacts the inner curved surface of the low-level guide plate 22, thereby changing the flow direction of the hot airflow. A return pipe 23 is provided on the processing chamber 1, and the low-level guide plate 22 guides the airflow to flow into the return pipe 23. A cover plate 24 is connected between the low-level guide plate 22 and the return pipe 23. The cover plate 24 is located inside the processing chamber 1 and is in an inclined state. The lower end of the cover plate 24 is connected to the return pipe 2. The connection between the 3rd and 4th sections allows the hot airflow to be guided and redirected by the low-level guide plate 22, allowing it to pass under the cover plate 24 and eventually enter the return pipe 23. A baffle mesh is installed at the connection between the cover plate 24 and the return pipe 23 to prevent small coal gangue particles from entering the return pipe 23. The return pipe 23 is connected to the conveying channel 3. After the airflow enters the return pipe 23, it can flow again, allowing the airflow to enter through the conveying channel 3, thus forming a circulating flow of airflow.

[0032] This invention enables secondary crushing of coal gangue during grinding, thereby increasing the grinding effect. Simultaneously, by heating the coal gangue and exchanging heat through contact between the hot airflow and the coal gangue, the coal gangue becomes relatively dry, thus preventing some wet clay from sticking to the equipment.

[0033] Finally, the primary crushing component 4 and the secondary crushing component 5 in this application are both roller crushing structures in the prior art, and their power comes from stepper motors or diesel engines, etc. This technical solution only applies their basic functions and does not improve their structure, so their structure will not be described in detail.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A coal gangue grinding and processing equipment, characterized in that: It includes a processing bin (1) and a conveying channel (2). The conveying channel (2) is equipped with a feeding component, which allows coal gangue to enter the processing bin (1). The processing bin (1) is equipped with a primary crushing component (4) and a secondary crushing component (5), and the coal gangue passes through the primary crushing component (4) and the secondary crushing component (5) in sequence. The material conveying channel (2) is connected to an air supply device (6), which delivers airflow into the processing chamber (1) through the material conveying channel (2); The processing chamber (1) is connected to a return pipe (23). After passing through the secondary crushing component (5), the airflow enters the return pipe (23). The return pipe (23) is connected to the material conveying channel (2).

2. The coal gangue grinding and processing equipment according to claim 1, characterized in that: The feeding assembly includes a driving assembly (7) and a guide plate (8), both of which are inclined. The guide plate (8) is located below the driving assembly (7), and the coal gangue passes between the guide plate (8) and the driving assembly (7).

3. The coal gangue grinding and processing equipment according to claim 2, characterized in that: The guide plate (8) is provided with a feed port, and a feed plate (18) is provided below the guide plate (8). The lower end of the feed plate (18) passes through the processing chamber (1), and the lower end of the feed plate (18) is located above the secondary crushing component (5).

4. The coal gangue grinding and processing equipment according to claim 2, characterized in that: The material driving assembly (7) includes an inclined integrated plate (9), an elongated notch (10) is provided on the integrated plate (9), a conveyor belt (12) is provided in the notch (10), and the conveyor belt (12) is connected to the integrated plate (9) through a guide roller (11).

5. The coal gangue grinding and processing equipment according to claim 4, characterized in that: The high end of the integrated plate (9) is connected to a positioning shaft (13), the integrated plate (9) can rotate around the positioning shaft (13), the integrated plate (9) is connected to an elastic reset member, and the low end of the integrated plate (9) is connected to a support rod (14). The support rod (14) and the positioning shaft (13) are both fixed on the inner wall of the material conveying channel (2).

6. A coal gangue grinding and processing equipment according to claim 1 or 5, characterized in that: The inner wall of the conveying channel (2) is provided with an electric heating tube, which heats the coal gangue and airflow passing through the conveying channel (2).

7. The coal gangue grinding and processing equipment according to claim 1, characterized in that: The processing chamber (1) is equipped with a high-level flow guide plate (20). After the airflow enters the processing chamber (1), it comes into contact with the high-level flow guide plate (20). The high-level flow guide plate (20) causes the airflow to turn and flow to the primary crushing component (4).

8. The coal gangue grinding and processing equipment according to claim 7, characterized in that: The processing chamber (1) is also equipped with a low-level flow guide plate (22), which is located below the secondary crushing component (5). The low-level flow guide plate (22) guides the airflow to flow into the return pipe (23).

9. The coal gangue grinding and processing equipment according to claim 8, characterized in that: The processing chamber (1) is equipped with a cover plate (24), which is connected to the return pipe (23). The airflow passes under the cover plate (24), and a baffle mesh is provided at the connection between the cover plate (24) and the return pipe (23).

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