Grinding and crushing device for online detection of coal quality

Abstract

The invention discloses a grinding and crushing device for coal quality online detection, which comprises a crushing part and a grinding part communicated with the crushing part, the crushing part comprises a first shell, a first transmission wheel is rotationally connected to the first shell, a belt is arranged on the first transmission wheel, a second transmission wheel is arranged on the belt, a first crushing roller is fixedly connected to the first transmission wheel, and a second crushing roller is fixedly connected to the second transmission wheel; the grinding part comprises a second shell, a feeding opening of the second shell communicates with a discharging opening of the first shell, a grinding piece and a screen are arranged in the second shell, the grinding piece is rotationally connected into the second shell, and the screen is fixedly connected into the second shell and located on the periphery of the grinding piece; by arranging the crushing part and the grinding part communicated with the crushing part, coal needing to be detected can be subjected to a two-step process of coarse crushing and fine grinding, so that the crushing can be more in place, the grinding efficiency is high, and the granularity control is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of coal grinding, and more particularly to a grinding and crushing device for online detection of coal quality. Background Art

[0002] Coal plays an important role in modern industry, whether it is heavy industry or light industry; whether it is energy industry, metallurgical industry, chemical industry, machinery industry, or light textile industry, food industry, and transportation industry.

[0003] When conducting testing and research on coal, it is generally necessary to grind the coal into powder. However, due to the hard texture of coal, the existing grinding equipment is prone to inadequate grinding, resulting in problems such as low grinding efficiency, inaccurate particle size control, and high energy consumption, which has a certain impact on subsequent testing.

[0004] Therefore, how to provide a grinding and crushing device for online detection of coal quality with high grinding efficiency and fine coal grinding is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a grinding and crushing device for online detection of coal quality, aiming to solve the above technical problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A grinding and pulverizing device for online detection of coal quality, comprising a pulverizing part and a grinding part connected to the pulverizing part;

[0008] The crushing part comprises a first shell, a first transmission wheel is rotatably connected to the first shell, a belt is arranged on the first transmission wheel, a second transmission wheel is arranged on the belt, a first crushing roller is fixedly connected to the first transmission wheel, and a second crushing roller is fixedly connected to the second transmission wheel;

[0009] The grinding part includes a second shell, the feed port of the second shell is connected to the discharge port of the first shell, the second shell has a grinding piece and a screen, the grinding piece is rotatably connected to the second shell, the screen is fixedly connected to the second shell and is located outside the grinding piece.

[0010] Preferably, a first transmission motor is installed on the first shell, the first transmission wheel is fixedly connected to the output end of the first transmission motor, the second transmission wheel is rotatably connected to the first shell, the first crushing roller is rotatably connected to the first shell, and the second crushing roller is rotatably connected to the first shell.

[0011] Preferably, the feed port of the second shell is connected to the discharge port of the first shell through a pipeline, and the pipeline extends to connect to the screen.

[0012] Preferably, the second shell has a slag discharge port.

[0013] Preferably, the grinding member includes a main shaft passing through the second shell, a second transmission motor connected to one end of the main shaft, and a plurality of grinding sheets evenly arranged on the main shaft.

[0014] Preferably, the grinding sheet is connected to the main shaft at an angle, and the grinding sheet is inclined toward the slag discharge port.

[0015] Preferably, the lower end of the second shell has a discharge port, and a collection box is placed below the discharge port.

[0016] Preferably, a pushing piece is connected to the first shell and the second shell for pushing the coal to the discharge port.

[0017] Preferably, the pushing member includes an electric push rod and a push plate connected to the telescopic end of the electric push rod, and a plurality of blowing holes are provided at the lower end of the push plate, and the plurality of blowing holes are connected to the fan through a blowing pipe.

[0018] It can be seen from the above technical solution that, compared with the prior art, the present invention discloses a grinding and crushing device for online detection of coal quality, which has the following beneficial effects:

[0019] The present invention provides a crushing part and a grinding part connected to the crushing part, so that the coal to be tested can be subjected to a two-step process of coarse crushing and fine grinding, so that the crushing can be more thorough, the grinding efficiency is high, and the particle size control is more precise.

[0020] In the present invention, by arranging the first crushing roller and the second crushing roller, the coal can be coarsely crushed, and the coarsely crushed coal enters the second shell, and is finely ground under the action of the grinding element and the screen, so that the crushing can be more thorough, the grinding efficiency is high, and the particle size control is more precise; a slag discharge port is provided on the second shell, and an aggregate box is placed under the slag discharge port. The coal that is not ground thoroughly by the grinding element falls into the aggregate box through the slag discharge port for collection, and then enters the first shell again to start the coarse crushing and fine grinding processes, so that the crushing is more thorough.

[0021] The present invention provides pushing pieces in both the first shell and the second shell, so that the coal in the first shell and the second shell can be pushed to the discharge port, thereby improving efficiency and reducing waste of coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 The accompanying drawing is a schematic diagram of the structure of the crushing unit of the present invention;

[0025] Figure 3 The accompanying drawing is a schematic diagram of the grinding part structure of the present invention;

[0026] Figure 4 The accompanying drawing is a schematic diagram of the screen structure of the present invention;

[0027] in:

[0028] 1. Crushing part; 11. First shell; 12. First transmission wheel; 13. Belt; 14. Second transmission wheel; 15. First crushing roller; 16. Second crushing roller; 17. First transmission motor; 2. Grinding part; 21. Second shell; 22. Grinding piece; 23. Screen; 24. Slag discharge port; 25. Main shaft; 26. Grinding sheet; 27. Second transmission motor; 3. Pushing piece; 31. Electric push rod; 32. Pushing plate; 33. Blowing pipe. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-4 The embodiment of the present invention discloses a grinding and crushing device for online detection of coal quality, comprising a crushing part 1 and a grinding part 2 connected to the crushing part 1;

[0031] The crushing part 1 comprises a first housing 11, a first transmission wheel 12 is rotatably connected to the first housing 11, a belt 13 is arranged on the first transmission wheel 12, a second transmission wheel 14 is arranged on the belt 13, a first crushing roller 15 is fixedly connected to the first transmission wheel 12, and a second crushing roller 16 is fixedly connected to the second transmission wheel 14;

[0032] The grinding part 2 includes a second shell 21, the feed port of the second shell 21 is connected to the discharge port of the first shell 11, and the second shell 21 has a grinding piece 22 and a screen 23. The grinding piece 22 is rotatably connected to the second shell 21, and the screen 23 is fixedly connected to the second shell 21 and is located outside the grinding piece 22.

[0033] The coal enters through the top feed port of the first shell 11, is coarsely crushed under the action of the first crushing roller 15 and the second crushing roller 16, and then enters the second shell 21, is finely ground under the action of the grinding element 22 and the screen 23, and the crushing can be more thorough; the aperture of the screen 23 is 1.2-1.4mm, preferably 1.2mm, and the screen 23 can be a conical screen 23, and the cross-sectional diameter gradually decreases towards the discharge port.

[0034] See also Figure 2 Specifically, a first transmission motor 17 is installed on the first shell 11, the first transmission wheel 12 is fixedly connected to the output end of the first transmission motor 17, the second transmission wheel 14 is rotatably connected to the first shell 11, the first crushing roller 15 is rotatably connected to the first shell 11, and the second crushing roller 16 is rotatably connected to the first shell 11.

[0035] Since the first transmission motor 17 is installed on the first shell 11, and the first transmission wheel 12 is fixedly connected to the output end of the first transmission motor 17, when the first transmission motor 17 is started, the first transmission motor 17 can drive the first transmission wheel 12 to rotate. Since the second transmission wheel 14 is rotatably connected to the first shell 11, when the second transmission wheel 14 rotates, the first shell 11 can support and limit the second transmission wheel 14. Since the first crushing roller 15 is rotatably connected to the first shell 11, when the first crushing roller 15 rotates, the first shell 11 can support and limit the first crushing roller 15. Since the second crushing roller 16 is rotatably connected to the first shell 11, when the second crushing roller 16 rotates, the first shell 11 can support and limit the second crushing roller 16.

[0036] The first transmission motor 17 is started, and its output end drives the first transmission wheel 12, the belt 13 and the second transmission wheel 14 to rotate. This rotation causes the first transmission wheel 12 and the second transmission wheel 14 to respectively drive the first crushing roller 15 and the second crushing roller 16 to rotate, thereby crushing the coal.

[0037] In order to further optimize the above technical solution, the feed port of the second shell 21 is connected to the discharge port of the first shell 11 through a pipeline, and the pipeline extends to connect to the screen 23.

[0038] In order to further optimize the above technical solution, the second shell 21 has a slag discharge port 24. The coal that cannot pass through the screen 23 and is not completely ground is discharged from the slag discharge port 24 under the action of centrifugal force and falls into the aggregate box, and is added into the first shell 11 by the operator for re-crushing and grinding.

[0039] In order to further optimize the above technical solution, the grinding member 22 includes a main shaft 25 penetrating the second housing 21 , a second transmission motor 27 connected to one end of the main shaft 25 , and a plurality of grinding sheets 26 evenly arranged on the main shaft 25 .

[0040] In order to further optimize the above technical solution, the grinding sheet 26 is connected to the main shaft 25 at an angle, and the grinding sheet 26 is inclined toward the slag discharge port 24 to better grind and push the coal to move toward the slag discharge port 24.

[0041] In order to further optimize the above technical solution, the lower end of the second housing 21 is provided with a discharge port, and a collection box is placed below the discharge port to collect the ground coal for detection.

[0042] In order to further optimize the above technical solution, a pushing member 3 is connected to both the first shell 11 and the second shell 21 to push the coal to the discharge port.

[0043] In order to further optimize the above technical solution, the pusher 3 includes an electric push rod 31 and a push plate 32 connected to the telescopic end of the electric push rod 31. The lower end of the push plate 32 is provided with a plurality of blowing holes, and the plurality of blowing holes are connected to the fan through the blowing pipe 33. The fan blows air through the blowing pipe 33 and the blowing holes on the push plate 32, and cooperates with the push plate 32 to better clean the coal powder on the bottom wall and reduce the waste of coal resources.

[0044] The working principle of the present invention is that the operator puts the coal to be tested from the top feed port of the first shell 11, turns on the first transmission motor 17, and the output end of the first transmission motor 17 drives the first transmission wheel 12, the belt 13 and the second transmission wheel 14 to rotate, so that the first transmission wheel 12 and the second transmission wheel 14 respectively drive the first crushing roller 15 and the second crushing roller 16 to rotate to crush the coal. Subsequently, the crushed coal enters the screen 23 of the second shell 21 from the discharge port of the first shell 11 under the action of the pushing piece 3, and the second transmission motor 27 drives the main shaft 25 and the grinding sheet 26 to rotate, and cooperates with the screen 23 to finely grind the coal; the coal that has not been ground in place falls into the collecting box through the slag discharge port 24 for collection, and then enters the first shell 11 again to restart the coarse crushing and fine grinding; the ground coal is discharged from the discharge port of the second shell 21 under the action of the pushing piece 3 and enters the collection box for subsequent detection.

[0045] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0046] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grinding and crushing device for online detection of coal quality, characterized in that: It includes a crushing part and a grinding part connected to the crushing part; The crushing part comprises a first shell, a first transmission wheel is rotatably connected to the first shell, a belt is arranged on the first transmission wheel, a second transmission wheel is arranged on the belt, a first crushing roller is fixedly connected to the first transmission wheel, and a second crushing roller is fixedly connected to the second transmission wheel; The grinding part includes a second shell, the feed port of the second shell is connected to the discharge port of the first shell, the second shell has a grinding piece and a screen, the grinding piece is rotatably connected to the second shell, the screen is fixedly connected to the second shell and is located outside the grinding piece.

2. The grinding and crushing device for online detection of coal quality according to claim 1, characterized in that: The first shell is provided with a first transmission motor, the first transmission wheel is fixedly connected to the output end of the first transmission motor, the second transmission wheel is rotatably connected to the first shell, the first crushing roller is rotatably connected to the first shell, and the second crushing roller is rotatably connected to the first shell.

3. The grinding and crushing device for online detection of coal quality according to claim 1, characterized in that: The feed port of the second shell is connected to the discharge port of the first shell through a pipeline, and the pipeline extends to connect to the screen.

4. The grinding and crushing device for online detection of coal quality according to claim 1, characterized in that: The second shell has a slag discharge port.

5. The grinding and crushing device for online detection of coal quality according to claim 4, characterized in that: The grinding member includes a main shaft penetrating the second housing, a second transmission motor connected to one end of the main shaft, and a plurality of grinding sheets evenly arranged on the main shaft.

6. The grinding and crushing device for online detection of coal quality according to claim 5, characterized in that: The grinding sheet is connected to the main shaft in an inclined manner, and the grinding sheet is inclined toward the slag discharge port.

7. The grinding and crushing device for online detection of coal quality according to claim 1, characterized in that: The lower end of the second shell is provided with a discharge port, and a collection box is placed below the discharge port.

8. The grinding and crushing device for online detection of coal quality according to claim 7, characterized in that: The first shell and the second shell are both connected with a pushing piece for pushing the coal to the discharge port.

9. The grinding and crushing device for online detection of coal quality according to claim 8, characterized in that: The pusher comprises an electric push rod and a push plate connected to the telescopic end of the electric push rod. A plurality of blowing holes are arranged at the lower end of the push plate. The plurality of blowing holes are connected to the fan through a blowing pipe.

10. The grinding and crushing device for online detection of coal quality according to claim 1, characterized in that: The screen is a conical screen.

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