Vertical pulverized coal grinding and crushing device

Abstract

The utility model discloses a vertical pulverized coal grinding and crushing device which comprises a bottom plate, the inner wall of the bottom plate is fixedly connected with a protective shell, the upper surface of the protective shell is fixedly communicated with a feeding pipeline, the inner wall of the protective shell is fixedly connected with a filtering sieve plate, and the upper surface of the bottom plate is fixedly connected with two groups of first driving motors; the bottom face of the bottom plate is fixedly connected with two sets of supporting legs and two fixing columns, the bottom end of each fixing column is fixedly connected with a supporting plate, and the bottom face of each supporting plate is fixedly connected with a second driving motor. Through mutual cooperation of the feeding pipeline, the filtering sieve plate, the second crushing roller and the first driving motor, pulverized coal blocks of different sizes can be crushed in a classified mode, the purpose of classified grinding is achieved, the situation that the pulverized coal blocks of different sizes are ground in a unified mode is avoided, falling of small pulverized coal blocks is easily blocked by large pulverized coal blocks, and the working efficiency is improved. The problems that coal blocks in the crushing box are blocked, the energy consumption of grinding equipment is increased, and the service life of the grinding equipment is shortened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal powder, in particular to a coal powder vertical grinding and crushing device. Background Art

[0002] Coal powder is a coal product made from washed coal and coking coal through screening, drying and grinding. It is mainly used for the molding of green sand in blast furnace smelting and casting. Adding coal powder to green sand for cast iron can prevent sand adhesion defects on the surface of castings, improve the surface finish of castings, and reduce sand inclusion defects.

[0003] The utility model with the existing authorization announcement number CN220496515U discloses a vertical grinding and crushing device for coal powder, including a crushing box and a crushing roller. A fixed shaft is rotatably fixed at the center of the inner top of the crushing box. The crushing roller is fixed to the bottom of the fixed shaft and is located at the inner center of the crushing box. A motor is fixed on the top of the crushing box. The output shaft of the motor is connected to the fixed shaft through a set of bevel gears. The inner wall of the crushing box and the crushing roller are both configured to be inverted frustum.

[0004] Although the above-mentioned technical scheme realizes the coal powder crushing process through the rotational friction between the crushing roller and the inner wall of the crushing box, and the distance between the crushing roller and the crushing box decreases from top to bottom, this arrangement can make coal blocks of any size within a certain extent can be ground into particles of the same size, without the need to pre-crush larger coal blocks, thereby effectively improving the coal powder crushing efficiency, but the above-mentioned technical scheme grinds coal blocks of different sizes uniformly during use, which can easily cause large coal blocks to block the falling of small coal blocks, causing coal blocks in the crushing box to be blocked, and easily lead to increased energy consumption of the grinding equipment and reduced service life. Therefore, technical personnel in this field provide a vertical coal powder grinding and crushing device to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] In view of this, it is necessary to provide a vertical coal powder grinding and pulverizing device to solve the problem that uniform grinding of coal blocks of different sizes easily leads to high energy consumption of grinding equipment and reduced service life.

[0006] According to one aspect of the utility model, a vertical coal powder grinding and crushing device is provided, comprising a base plate, the inner wall of the base plate is fixedly connected to a protective shell, the upper surface of the protective shell is fixedly connected to a feed pipe, the inner wall of the protective shell is fixedly connected to a filter screen plate, the upper surface of the base plate is fixedly connected to two groups of first drive motors, the bottom surface of the base plate is respectively fixedly connected to two groups of support feet and two fixed columns, the bottom end of each of the fixed columns is fixedly connected to a support plate, the bottom surface of each supported plate is fixedly connected to a second drive motor, the output end of each second drive motor is fixedly connected to a first crushing roller, the output end of each group of the first drive motors is fixedly connected to two second crushing rollers, the bottom surface of the protective shell is fixedly connected to two drainage pipes, and the side surfaces of the two drainage pipes close to each other are commonly fixedly connected to a discharge pipe.

[0007] According to some embodiments, a protective shell is fixedly connected to the outer surface of each group of the first driving motors, and a bottom surface of each of the protective shells is fixedly connected to the upper surface of the bottom plate.

[0008] According to some embodiments, a protection box is fixedly connected to the outer surface of each of the second drive motors, and an upper surface of each of the protection boxes is fixedly connected to the bottom surface of the support plate.

[0009] According to some embodiments, a control panel is fixedly connected to the upper surface of the bottom plate, and the control panel is electrically connected to the first drive motor and the second drive motor respectively through wires.

[0010] According to some embodiments, a reinforcement frame is fixedly connected to the outer surface of the control panel, and the bottom surface of the reinforcement frame is fixedly connected to the upper surface of the bottom plate.

[0011] According to some embodiments, two fixing rings are fixedly connected to the outer surface of each group of the supporting legs, and the top end of each of the fixing rings is fixedly connected to the bottom surface of the base plate.

[0012] According to some embodiments, a reinforcement plate is fixedly connected to the outer surface of each of the fixing columns, and a bottom surface of each of the reinforcement plates is fixedly connected to the upper surface of the support plate.

[0013] According to some embodiments, the inner wall of each reinforcement plate is threadedly connected with two groups of fixing bolts, and the outer surface of each group of fixing bolts is threadedly connected to the inner wall of the support plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] By providing a feed pipe, a filter screen plate, a second crushing roller and a first drive motor that cooperate with each other, coal powder blocks of different sizes can be classified and crushed to achieve the purpose of classified grinding, and can effectively avoid grinding coal blocks of different sizes in a unified manner, which may easily cause large coal blocks to block the falling of small coal blocks, causing coal blocks in the crushing box, resulting in increased energy consumption of the grinding equipment and reduced service life. By providing a second drive motor, a first crushing roller and a drainage pipe that cooperate with each other, the coal powder can be further crushed to improve the processing quality. The protective shell can prevent the coal powder from leaking out during grinding and crushing, effectively avoiding the problem of pollution to the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model 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 some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a coal powder vertical grinding and crushing device provided by the utility model;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of a first driving motor of a coal powder vertical grinding and crushing device provided by the utility model;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of a discharge pipe of a coal powder vertical grinding and crushing device provided by the utility model;

[0020] Figure 4 A schematic diagram of the three-dimensional structure of a second grinding roller of a coal powder vertical grinding and crushing device provided by the utility model;

[0021] Figure 5 The utility model provides a schematic diagram of the three-dimensional structure of a second drive motor of a coal powder vertical grinding and crushing device.

[0022] In the figure: 1. bottom plate; 2. protective shell; 3. feed pipe; 4. protective shell; 5. support foot; 6. control panel; 7. protective box; 8. filter screen plate; 9. first drive motor; 10. reinforcement frame; 11. second drive motor; 12. drainage pipe; 13. discharge pipe; 14. first crushing roller; 15. fixing ring; 16. support plate; 17. second crushing roller; 18. fixing column; 19. reinforcement plate; 20. fixing bolt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] See also Figures 1 to 5 The utility model provides a coal powder vertical grinding and crushing device, including a bottom plate 1, a protective shell 2 is fixedly connected to the inner wall of the bottom plate 1, a feed pipe 3 is fixedly connected to the upper surface of the protective shell 2, a filter screen plate 8 is fixedly connected to the inner wall of the protective shell 2, two groups of first drive motors 9 are fixedly connected to the upper surface of the bottom plate 1, two groups of support feet 5 and two fixed columns 18 are fixedly connected to the bottom surface of the bottom plate 1, the bottom end of each fixed column 18 is fixedly connected to a support plate 16, the bottom surface of each supported plate 16 is fixedly connected to a second drive motor 11, the output end of each second drive motor 11 is fixedly connected to a first crushing roller 14, the output end of each group of first drive motors 9 is fixedly connected to two second crushing rollers 17, the bottom surface of the protective shell 2 is fixedly connected to two drainage pipes 12, and the side of the two drainage pipes 12 close to each other is fixedly connected to a discharge pipe 13.

[0025] Through the first driving motor 9, the second crushing roller 17 and the filter screen plate 8, larger coal blocks can be ground to achieve a stronger crushing effect, reduce the energy consumption of the grinding equipment, enhance the use effect of the device, and increase the service life of the grinding equipment.

[0026] Furthermore, the outer surface of each group of first drive motors 9 is fixedly connected with a protective shell 4, and the bottom surface of each protective shell 4 is fixedly connected to the upper surface of the base plate 1. The first drive motor 9 can be protected by the protective shell 4, which has a strong protective effect.

[0027] Furthermore, the outer surface of each second drive motor 11 is fixedly connected to a protection box 7, and the upper surface of each protection box 7 is fixedly connected to the bottom surface of the support plate 16. The protection box 7 can protect the second drive motor 11 and provide a strong protective effect to prevent it from being damaged by the outside world.

[0028] Furthermore, a control panel 6 is fixedly connected to the upper surface of the base plate 1, and the control panel 6 is electrically connected to the first drive motor 9 and the second drive motor 11 through wires. Through the control panel 6, the first drive motor 9 and the second drive motor 11 can be easily controlled and used, thereby enhancing its practicality.

[0029] Furthermore, a reinforcement frame 10 is fixedly connected to the outer surface of the control panel 6, and the bottom surface of the reinforcement frame 10 is fixedly connected to the upper surface of the base plate 1. The reinforcement frame 10 can fix the control panel 6 and the base plate 1 to prevent them from shifting during use.

[0030] Furthermore, two fixing rings 15 are fixedly connected to the outer surface of each set of supporting legs 5, and the top of each fixing ring 15 is fixedly connected to the bottom surface of the base plate 1. Through the fixing ring 15, the supporting legs 5 and the base plate 1 can be reinforced, effectively avoiding the problem of displacement and instability during operation.

[0031] Furthermore, a reinforcement plate 19 is fixedly connected to the outer surface of each fixing column 18, and the bottom surface of each reinforcement plate 19 is fixedly connected to the upper surface of the support plate 16. The reinforcement plate 19 can reinforce the fixing column 18 and the support plate 16 to effectively prevent them from shaking during operation.

[0032] Furthermore, the inner wall of each reinforcement plate 19 is threadedly connected with two groups of fixing bolts 20, and the outer surface of each group of fixing bolts 20 is threadedly connected to the inner wall of the support plate 16. The fixing bolts 20 can fix the reinforcement plate 19 and the support plate 16 to avoid shaking during use.

[0033] Working principle: When in use, first add coal blocks into the feed pipe 3, and then the coal blocks will fall vertically onto the filter screen plate 8. Smaller coal blocks will continue to fall through the filter screen plate 8. By rotating the output end of the second drive motor 11, the first crushing roller 14 is driven to rotate, so that the smaller coal blocks can be crushed and ground, while the larger coal blocks will be blocked by the filter screen plate 8. Since the middle part of the filter screen plate 8 protrudes upward and the two sides are inclined, the larger coal blocks will slide from the filter screen plate 8 to the two sides of the protective shell 2, and then the first drive motor 11 is driven to rotate. The output end of the motor 9 rotates, driving the second crushing roller 17 to rotate, thereby crushing larger coal blocks, achieving a stronger crushing effect and enhancing the applicability of the device. The crushed coal blocks will then fall through the drainage pipe 12 to the first crushing roller 14 for grinding and crushing, thereby achieving the purpose of sufficient grinding and crushing. It can effectively avoid grinding coal blocks of different sizes in a unified manner, which may easily cause large coal blocks to block the falling of small coal blocks, causing blockage of coal blocks in the crushing box, and easily lead to increased energy consumption of the grinding equipment and reduced service life.

[0034] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

Claims

1. A coal powder vertical grinding and crushing device, characterized in that: The invention comprises a bottom plate (1), the inner wall of the bottom plate (1) is fixedly connected to a protective shell (2), the upper surface of the protective shell (2) is fixedly connected to a feed pipe (3), the inner wall of the protective shell (2) is fixedly connected to a filter screen plate (8), the upper surface of the bottom plate (1) is fixedly connected to two groups of first drive motors (9), the bottom surface of the bottom plate (1) is respectively fixedly connected to two groups of support legs (5) and two fixed columns (18), and the bottom end of each of the fixed columns (18) is fixedly connected to a support plate (16), the bottom surface of each supporting plate (16) is fixedly connected to a second driving motor (11), the output end of each second driving motor (11) is fixedly connected to a first crushing roller (14), the output end of each group of the first driving motors (9) is fixedly connected to two second crushing rollers (17), the bottom surface of the protective shell (2) is fixedly connected to two drainage pipes (12), and the side surfaces of the two drainage pipes (12) close to each other are fixedly connected to a discharge pipe (13).

2. A coal powder vertical grinding and crushing device according to claim 1, characterized in that: The outer surface of each group of the first drive motors (9) is fixedly connected to a protective shell (4), and the bottom surface of each protective shell (4) is fixedly connected to the upper surface of the bottom plate (1).

3. A coal powder vertical grinding and crushing device according to claim 1, characterized in that: The outer surface of each second drive motor (11) is fixedly connected to a protection box (7), and the upper surface of each protection box (7) is fixedly connected to the bottom surface of the support plate (16).

4. A coal powder vertical grinding and crushing device according to claim 1, characterized in that: A control panel (6) is fixedly connected to the upper surface of the base plate (1), and the control panel (6) is electrically connected to the first drive motor (9) and the second drive motor (11) respectively through wires.

5. A coal powder vertical grinding and pulverizing device according to claim 4, characterized in that: The outer surface of the control panel (6) is fixedly connected to a reinforcement frame (10), and the bottom surface of the reinforcement frame (10) is fixedly connected to the upper surface of the bottom plate (1).

6. A coal powder vertical grinding and pulverizing device according to claim 1, characterized in that: The outer surface of each group of support legs (5) is fixedly connected to two fixing rings (15), and the top end of each fixing ring (15) is fixedly connected to the bottom surface of the base plate (1).

7. A coal powder vertical grinding and pulverizing device according to claim 1, characterized in that: The outer surface of each of the fixing columns (18) is fixedly connected to a reinforcing plate (19), and the bottom surface of each of the reinforcing plates (19) is fixedly connected to the upper surface of the supporting plate (16).

8. A coal powder vertical grinding and pulverizing device according to claim 7, characterized in that: The inner wall of each reinforcement plate (19) is threadedly connected with two groups of fixing bolts (20), and the outer surface of each group of fixing bolts (20) is threadedly connected to the inner wall of the support plate (16).

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