Coal grinding device

Abstract

The utility model discloses a coal grinding device which comprises a main machine body, a return mechanism is fixedly installed on the outer surface of the main machine body, the return mechanism comprises a communicating pipeline, a connecting pipe is fixedly installed at one end of the communicating pipeline in the length direction, and a connecting plate is fixedly installed at the other end of the connecting pipe in the length direction. The communicating pipeline is communicated with a connecting pipe, and a spiral blade is rotationally mounted in the connecting pipe; the output end of the driving motor drives the spiral blade and the belt to rotate, and the belt further drives the conveying belt to rotate, so that large-particle pulverized coal falling into the connecting pipe is driven by the spiral blade to move, falls onto the conveying belt through the communicating groove and then is brought back into the main machine body by the conveying belt, and the large-particle pulverized coal falls into the second grinding assembly. And finally, the pulverized coal falls onto the screening plate through the inclined plate to be screened, so that the large-particle pulverized coal generated by primary grinding can be conveniently subjected to secondary treatment.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal processing, and more specifically, relates to a coal grinding device. Background Art

[0002] Coal powder refers to coal with a particle size of less than 0.5 mm. Coal powder grinding is the most important link in the coal powder production process. Generally, a grinding mechanism is required to grind the raw coal blocks.

[0003] The existing grinding equipment relies on only one grinder to grind the coal blocks when in use. The coal blocks are only ground once. After grinding, the coal powder needs to be screened to prevent the coal powder blocks from being too large. At the same time, the coal powder blocks that are too large need to be manually added back into the grinder, which is time-consuming.

[0004] In summary, the present invention provides a coal grinding device to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the present invention provides a coal grinding device, which is achieved by the following specific technical means:

[0006] A coal grinding device includes a main body, a return mechanism is fixedly installed on the outer surface of the main body, the return mechanism includes a connecting pipe, a connecting pipe is fixedly installed at one end of the connecting pipe in the length direction, and a connecting plate is fixedly installed at the other end of the connecting pipe in the length direction, the connecting pipe is connected to the connecting pipe, a spiral blade is rotatably installed inside the connecting pipe, a connecting groove is provided at one end of the connecting pipe close to the connecting plate, the connecting plate is connected to the connecting pipe through the connecting groove, a conveyor belt is rotatably installed inside the connecting plate, a partition is fixedly provided on the conveyor belt, and one end of the conveyor belt in the length direction is arranged at the lower end of the spiral blade.

[0007] Furthermore, a feed port is fixedly provided on the upper surface of the main body, a crushing and grinding component is installed inside the main body, a screening plate is provided at the lower part of the crushing and grinding component, a vibration motor is fixedly installed on the lower end surface of the screening plate, and one end surface of the screening plate is fixedly installed on the inner wall of the main body.

[0008] Furthermore, a guide plate is fixedly installed inside the main body, a vibration motor 2 is fixedly installed at the lower end of the guide plate, a discharge port is fixedly provided at one end of the guide plate in the length direction, and the other end of the guide plate in the length direction is connected to the connecting pipe.

[0009] Furthermore, the other end of the conveyor belt in the length direction is arranged inside the main body, and a grinding component 2 is provided at the lower part of the end, and an inclined plate is provided at the lower end of the grinding component 2.

[0010] Furthermore, an observation window is provided on the outer surface of one end of the main body.

[0011] Furthermore, a belt is rotatably provided at one end of the spiral blade, the inner surface of the belt is rotatably connected to the conveyor belt, a drive motor is fixedly installed at one end of the spiral blade, a mounting bracket is fixedly installed at one end of the connecting pipe close to the connecting plate, and the drive motor is fixedly connected to the mounting bracket.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model drives the spiral blade and the belt to rotate through the output end of the driving motor, and the belt further drives the conveyor belt to rotate, so that the large-particle coal powder falling into the connecting pipe is moved by the spiral blade, and then falls onto the conveyor belt through the connecting groove, and is then brought back to the main body by the conveyor belt, while the large-particle coal powder falls into the second grinding component, is finely ground in the second grinding component, and finally falls onto the screening plate through the inclined plate for screening, so that the large-particle coal powder produced by the first grinding can be conveniently subjected to secondary processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the coal grinding device of the present invention.

[0015] Figure 2 It is a three-dimensional schematic diagram of the coal grinding device of the present invention.

[0016] Figure 3 It is a three-dimensional schematic diagram of the coal grinding device of the present invention.

[0017] Figure 4 It is a partial three-dimensional schematic diagram of the coal grinding device of the utility model.

[0018] Figure 5 It is an enlarged schematic diagram of part A of the coal grinding device of the present invention.

[0019] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0020] 1. Main body; 2. Feed inlet; 3. Observation window; 4. Return mechanism; 401. Connecting plate; 402. Connecting pipe; 403. Connecting pipe; 404. Conveyor belt; 405. Connecting trough; 406. Spiral blade; 407. Belt; 408. Mounting bracket; 409. Drive motor; 5. Discharge port; 6. Crushing and grinding component 1; 7. Grinding component 2; 8. Inclined plate; 9. Screening plate; 10. Guide plate; 11. Vibration motor 2; 12. Vibration motor 1. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] like Figures 1 to 5As shown, the utility model provides a coal grinding device, including a main body 1, a return mechanism 4 is fixedly installed on the outer surface of the main body 1, the return mechanism 4 includes a connecting pipe 403, a connecting pipe 402 is fixedly installed at one end in the length direction of the connecting pipe 403, a connecting plate 401 is fixedly installed at the other end in the length direction of the connecting pipe 402, the connecting pipe 403 is connected to the connecting pipe 402, a spiral blade 406 is rotatably installed inside the connecting pipe 402, a connecting groove 405 is opened at one end of the connecting pipe 402 close to the connecting plate 401, the connecting plate 401 and the connecting pipe 402 are connected through the connecting groove 405, a conveyor belt 404 is rotatably installed inside the connecting plate 401, and the conveyor belt 404 is fixedly provided with Partition, one end of the conveyor belt 404 in the length direction is set at the lower end of the spiral blade 406, and the large-particle coal powder produced by screening falls from the connecting pipe 403 into the connecting pipe 402. By starting the drive motor 409, the output end of the drive motor 409 drives the spiral blade 406 and the belt 407 to rotate, and the belt 407 further drives the conveyor belt 404 to rotate, so that the large-particle coal powder falling into the connecting pipe 402 is driven by the spiral blade 406 to move, and then falls from the connecting groove 405 to the conveyor belt 404, and is then brought back to the main body 1 by the conveyor belt 404, while the large-particle coal powder falls into the grinding component 2 7, is finely ground in the grinding component 2 7, and finally falls onto the screening plate 9 through the inclined plate 8 for screening.

[0026] Among them, the upper surface of the main body 1 is fixedly provided with a feed port 2, the interior of the main body 1 is installed with a crushing and grinding component 6, the lower part of the crushing and grinding component 6 is provided with a screening plate 9, the lower end surface of the screening plate 9 is fixedly installed with a vibration motor 12, and one end surface of the screening plate 9 is fixedly installed on the inner wall of the main body 1. By setting the vibration motor 12, the vibration motor 12 drives the screening plate 9 to vibrate when working, so that the coal powder can be conveniently screened.

[0027] Among them, a guide plate 10 is fixedly installed inside the main body 1, and a vibration motor 11 is fixedly installed at the lower end of the guide plate 10. A discharge port 5 is fixedly provided at one end of the guide plate 10 in the length direction, and the other end of the guide plate 10 in the length direction is connected to the connecting pipe 403. The two ends of the guide plate 10 are respectively connected to the discharge port 5 and the connecting pipe 403, so that small particles and large particles of coal powder can be easily separated. At the same time, the guide plate 10 is provided with an inclination at the end connected to the connecting pipe 403 to facilitate the aggregation of coal powder.

[0028] Among them, the other end of the conveyor belt 404 in the length direction is set inside the main body 1, and a grinding component 2 7 is set at the lower part of the end. An inclined plate 8 is set at the lower end of the grinding component 2 7. By setting the grinding component 2 7, it is convenient to finely grind large particles of coal powder.

[0029] An observation window 3 is provided on the outer surface of one end of the main body 1, and the observation window 3 is provided to facilitate observation of the grinding situation.

[0030] Among them, a belt 407 is rotatably provided at one end of the spiral blade 406, and the inner surface of the belt 407 is rotatably connected to the conveyor belt 404. A drive motor 409 is fixedly installed at one end of the spiral blade 406, and a mounting bracket 408 is fixedly installed at one end of the connecting pipe 402 close to the connecting plate 401. The drive motor 409 is fixedly connected to the mounting bracket 408. By setting the belt 407 and the drive motor 409, the spiral blade 406 and the conveyor belt 404 can be rotated at the same time to facilitate the transportation of coal powder.

[0031] The working principle of this embodiment is as follows:

[0032] In actual use, the coal grinding device of the present invention is first fed into the feed port 2. Under the action of the crushing and grinding assembly 6, the coal can be conveniently crushed and ground. The ground coal powder is screened by the screening plate 9 and falls onto one end of the guide plate 10. Then, under the action of the vibration motor 11, it is discharged from the discharge port 5. The large particles of coal powder produced by screening fall into the connecting pipe 402 from the connecting pipe 403. Then, the driving motor 409 is started so that the output end of the driving motor 409 is The spiral blade 406 and the belt 407 are driven to rotate, and the belt 407 further drives the conveyor belt 404 to rotate, so that the large-particle coal powder falling into the connecting pipe 402 is driven by the spiral blade 406 to move, and then falls onto the conveyor belt 404 through the connecting groove 405, and is then brought back to the main body 1 by the conveyor belt 404, while the large-particle coal powder falls into the grinding component 2 7, is finely ground in the grinding component 2 7, and finally falls onto the screening plate 9 through the inclined plate 8 for screening, so that the large-particle coal powder can be conveniently processed.

[0033] The implementation methods of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A coal grinding device comprising a main body (1), characterized in that: A return mechanism (4) is fixedly installed on the outer surface of the main body (1), and the return mechanism (4) comprises a connecting pipe (403), a connecting pipe (402) is fixedly installed at one end in the longitudinal direction of the connecting pipe (403), and a connecting plate (401) is fixedly installed at the other end in the longitudinal direction of the connecting pipe (402), the connecting pipe (403) is connected to the connecting pipe (402), a spiral blade (406) is rotatably installed inside the connecting pipe (402), a connecting groove (405) is provided at one end of the connecting pipe (402) close to the connecting plate (401), the connecting plate (401) and the connecting pipe (402) are connected through the connecting groove (405), a conveyor belt (404) is rotatably installed inside the connecting plate (401), a partition is fixedly provided on the conveyor belt (404), and one end of the conveyor belt (404) in the longitudinal direction is arranged at the lower end of the spiral blade (406).

2. The coal grinding device according to claim 1, characterized in that: A feed port (2) is fixedly provided on the upper surface of the main body (1), a crushing and grinding assembly (6) is installed inside the main body (1), a screening plate (9) is provided at the lower part of the crushing and grinding assembly (6), a vibration motor (12) is fixedly installed on the lower end surface of the screening plate (9), and one end surface of the screening plate (9) is fixedly installed on the inner wall of the main body (1).

3. The coal grinding device according to claim 1, characterized in that: A guide plate (10) is fixedly installed inside the main body (1), a vibration motor 2 (11) is fixedly installed at the lower end of the guide plate (10), a discharge port (5) is fixedly provided at one end in the length direction of the guide plate (10), and the other end in the length direction of the guide plate (10) is connected to a connecting pipe (403).

4. The coal grinding device according to claim 1, characterized in that: The other end of the conveyor belt (404) in the length direction is arranged inside the main body (1), and a second grinding component (7) is arranged at the lower part of the end, and an inclined plate (8) is arranged at the lower end of the second grinding component (7).

5. The coal grinding device according to claim 1, characterized in that: An observation window (3) is provided on the outer surface of one end of the main body (1).

6. The coal grinding device according to claim 1, characterized in that: A belt (407) is rotatably provided at one end of the spiral blade (406), and the inner surface of the belt (407) is rotatably connected to the conveyor belt (404). A driving motor (409) is fixedly installed at one end of the spiral blade (406), and a mounting bracket (408) is fixedly installed at one end of the connecting pipe (402) close to the connecting plate (401), and the driving motor (409) is fixedly connected to the mounting bracket (408).

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