Coal sample mixing device for coal quality test

Abstract

The utility model discloses a coal sample mixing device for coal quality test, which comprises an equipment main body, the top of the equipment main body is provided with a crushing box, the crushing box is internally provided with a crushing mechanism, one side of the equipment main body is provided with a plurality of discharge ports, and the plurality of discharge ports are internally provided with discharge boxes in a sliding manner; a powder screening trough plate is jointly arranged above the multiple discharging boxes, multiple filtering openings are formed in the lower portion of the inner wall of the powder screening trough plate, and the diameters of the multiple filtering openings are arranged from small to large from top to bottom; coal is fed into the crushing box to be matched with the crushing mechanism to be crushed, the crushed materials fall into the powder sieve trough plate, the transmission shaft is controlled to drive the cam to rotate and impact the impact seat, and the powder sieve trough plate is driven to vibrate under the action of a spring in the shaking assembly, so that the materials in the powder sieve trough plate are driven to be fully mixed; and in the process, through the arrangement of the filtering openings with different sizes, the material powder is sieved into different discharging boxes to be intensively collected, so that the follow-up test is convenient to carry out.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing devices, in particular to a coal sample mixing device for coal quality testing. Background Art

[0002] Coal sample mixing devices are widely used in coal quality testing in coal production, processing, and sales, providing important technical support for coal quality assessment and control. Coal sample mixing is a crucial step in coal quality testing. Accurately mixing coal samples ensures representative and accurate test results, providing a reliable basis for coal quality assessment and use.

[0003] At present, the traditional coal sample mixing method usually puts the coal sample to be mixed into the mixing container through the feed port, starts the driving device, drives the stirring mechanism to start working, and the stirring blades stir the coal sample driven by the stirring shaft to make the coal sample fully mixed in the container. After the mixing is completed, the coal sample is discharged from the discharge port. In actual processing, the traditional coal sample mixing equipment can only mix and stir the crushed coal material alone, and its function is relatively simple. At the same time, since the coal samples after discharge are of different sizes and are mixed together, it is bound to affect the test results and is not convenient for actual test operations.

[0004] Therefore, a coal sample mixing device for coal quality testing is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a coal sample mixing device for coal quality testing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal sample mixing device for coal quality testing, comprising an equipment main body, a crushing box is installed on the top of the equipment main body, a crushing mechanism is provided inside the crushing box, a plurality of discharge ports are opened on one side of the equipment main body, and discharge boxes are slidably installed inside the plurality of discharge ports, a powder screen slot plate is commonly provided above the plurality of discharge boxes, a plurality of filter ports are opened below the inner wall of the powder screen slot plate, and the diameters of the plurality of filter ports are arranged from small to large from top to bottom, a rotating block is hingedly connected to one side of the powder screen slot plate, and the rotating block is rotatably installed inside the equipment main body, an impact seat is installed on one side of the powder screen slot plate, a cam is provided below the impact seat, a transmission shaft is installed on one side of the cam, and a first motor is installed on the other end of the transmission shaft, the first motor is installed on the equipment main body, and a shaking component for controlling the vibration of the powder screen slot plate is provided on the left side of the inner wall of the equipment main body.

[0007] Preferably, the shaking assembly includes a fixed plate, which is installed on the equipment body, and a connecting plate is slidably installed inside the fixed plate. A plurality of springs are installed on one side of the connecting plate, and the other ends of the plurality of springs are installed on the fixed plate, and one side of the connecting plate is installed on the powder screen slot plate.

[0008] Preferably, the crushing mechanism includes two main shafts, both of which are rotatably installed inside the crushing box, and crushing rollers are installed on the shaft walls of the two main shafts. One end of the two main shafts passes through one side of the inner wall of the crushing box and is installed with a driving wheel, and a second motor is installed on one side of one of the driving wheels, and the second motor is installed on the main body of the equipment.

[0009] Preferably, the transmission shaft is rotatably mounted inside the device body.

[0010] Preferably, handles are installed on the front surfaces of the plurality of discharge boxes, and the outer walls of the plurality of handles are arc-shaped.

[0011] Preferably, two fixed shafts are rotatably installed inside the crushing box, and the shaft walls of the two fixed shafts are installed with arc-shaped pressure plates. One end of the two fixed shafts is installed with a rotating plate, and the outer walls of the two rotating plates are slidably installed with limit blocks. The outer walls of the two limit blocks are slidably installed with limit platforms, and the two limit platforms are installed on the crushing box. One side of the two limit blocks is installed with a limit spring, and the other ends of the two limit springs are respectively installed on the corresponding limit platforms.

[0012] Preferably, a handle is rotatably mounted inside the two rotating plates, a guide platform is slidably mounted on one side of the two handles, a fixing rod is mounted on one side of the guide platform, and the fixing rod is mounted on the crushing box.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model feeds the coal material to be crushed into the interior of the crushing box and crushes it with the crushing mechanism. The crushed material falls into the interior of the powder screen slot plate, and cooperates with the control transmission shaft to drive the cam to rotate, hitting the impact seat, and cooperates with the action of the spring in the shaking component to drive the powder screen slot plate to vibrate, thereby driving the internal material to be fully mixed. During the process, the material powder is sieved into the interior of different discharge boxes for centralized collection through the setting of filter ports of different sizes, which is convenient for subsequent testing, thereby improving the accuracy of the test results.

[0015] 2. In order to further improve the powder screening effect and crushing efficiency of coal materials, the utility model, after the coal materials are poured into the crushing box, the fixed shaft is driven to rotate by manually controlling the rotating plate, so that the arc-shaped pressure plate on the fixed shaft compacts the materials inside, making the materials fit more closely with the two crushing rollers, making the powder screening effect better and the efficiency higher;

[0016] At the same time, the handle on the moving rotating plate slides inside the guide table on the fixed rod, thereby driving and limiting the limit block through the limit table. While moving, the rotating plates on both sides slide inside the corresponding limit blocks respectively. After releasing the hand, the corresponding limit spring force pushes the rotating plate to drive the fixed shaft and the arc pressure plate to rotate to their original position, thereby not affecting the blanking process and facilitating actual processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present utility model;

[0019] Figure 3 for Figure 2 A magnified view of point A in the figure;

[0020] Figure 4 for Figure 2 Enlarged view of point B in FIG.

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the pulverizing mechanism of the present utility model;

[0022] Figure 6 for Figure 5 Enlarged view of point C in the figure.

[0023] In the figure: 1. Equipment body; 2. Crushing box; 3. Discharge port; 4. Discharge box; 5. Powder sieve slot plate; 6. Filter port; 7. Rotating block; 8. Impact seat; 9. Cam; 10. Transmission shaft; 11. First motor; 12. Fixed plate; 13. Spring; 14. Connecting plate; 15. Main shaft; 16. Crushing roller; 17. Driving wheel; 18. Second motor; 19. Fixed shaft; 20. Rotating plate; 21. Limiting platform; 22. Limiting block; 23. Limiting spring; 24. Arc pressure plate; 25. Handle; 26. Guide platform; 27. Fixed rod. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-6 The utility model provides a technical solution: a coal sample mixing device for coal quality testing, comprising an equipment main body 1, a crushing box 2 is installed on the top of the equipment main body 1, a crushing mechanism is provided inside the crushing box 2, a plurality of discharge ports 3 are opened on one side of the equipment main body 1, a discharge box 4 is slidably installed inside the plurality of discharge ports 3, a powder screen slot plate 5 is commonly provided above the plurality of discharge boxes 4, a plurality of filter ports 6 are opened below the inner wall of the powder screen slot plate 5, the diameters of the plurality of filter ports 6 are arranged from small to large from top to bottom, a rotating block 7 is hinged on one side of the powder screen slot plate 5, the rotating block 7 is rotatably installed inside the equipment main body 1, an impact seat 8 is installed on one side of the powder screen slot plate 5, a cam 9 is provided below the impact seat 8, and a transmission shaft is installed on one side of the cam 9 10. The transmission shaft 10 is rotatably installed inside the equipment body 1. The other end of the transmission shaft 10 is equipped with a first motor 11, and the first motor 11 is installed on the equipment body 1. A shaking component for controlling the vibration of the powder screen slot plate 5 is provided on the left side of the inner wall of the equipment body 1. The coal material to be crushed is sent into the interior of the crushing box 2 and crushed in conjunction with the crushing mechanism. The crushed material falls into the interior of the powder screen slot plate 5, and cooperates with the control transmission shaft 10 to drive the cam 9 to rotate and collide with the impact seat 8. Under the action of the spring 13 in the shaking component, the powder screen slot plate 5 is driven to vibrate, thereby driving the internal material to be fully mixed. In the process, through the setting of filter ports 6 of different sizes, the material powder is screened into the interior of different discharge boxes 4 for centralized collection, which is convenient for subsequent testing.

[0026] like Figure 2 and 4 As shown, the shaking assembly includes a fixed plate 12, which is installed on the equipment body 1, and a connecting plate 14 is slidably installed inside the fixed plate 12. A plurality of springs 13 are installed on one side of the connecting plate 14, and the other ends of the plurality of springs 13 are installed on the fixed plate 12. One side of the connecting plate 14 is installed on the powder screen slot plate 5. By driving the cam 9 to rotate and collide with the impact seat 8, the powder screen slot plate 5 is driven to vibrate under the action of the spring 13 in the shaking assembly, and the material is also driven to vibrate and be mixed.

[0027] like Figure 1 and 5As shown, the crushing mechanism includes two main shafts 15, both of which are rotatably installed inside the crushing box 2, and crushing rollers 16 are installed on the shaft walls of the two main shafts 15. One end of the two main shafts 15 passes through one side of the inner wall of the crushing box 2 and is installed with a driving wheel 17. A second motor 18 is installed on one side of one of the driving wheels 17. The second motor 18 is installed on the equipment body 1. The coal to be crushed is fed into the crushing box 2, and the second motor 18 is started. The second motor 18 drives one of the driving wheels 17 to rotate, and then drives the main shaft 15 and the crushing roller 16 connected thereto to rotate. Through the transmission between the driving wheels 17, the crushing rollers 16 on the two main shafts 15 rotate towards each other at the same time to crush the coal.

[0028] like Figure 1 As shown, the front surfaces of the plurality of discharge boxes 4 are all provided with handles, and the outer walls of the plurality of handles are all arc-shaped, so that the discharge boxes 4 can be conveniently taken out from the discharge port 3 through the handles.

[0029] The working principle is as follows: In actual laboratory operation, the main procedures of the utility model include coal crushing operation: the coal to be crushed is fed into the crushing box 2, the second motor 18 is started, the second motor 18 drives one of the driving wheels 17 to rotate, and then drives the main shaft 15 and the crushing roller 16 connected thereto to rotate, and through the transmission between the driving wheels 17, the crushing rollers 16 on the two main shafts 15 rotate towards each other at the same time to crush the coal;

[0030] Coal powder screening and mixing operation: the crushed material falls into the powder screen slot plate 5, and the first motor 11 is started. The first motor 11 drives the transmission shaft 10 to rotate, and then drives the cam 9 to rotate. When the cam 9 rotates, it hits the impact seat 8, causing the powder screen slot plate 5 to vibrate. One side of the powder screen slot plate 5 is connected to the equipment body 1 through the rotating block 7, and the other side is vibrated by the impact seat 8 and the cam 9. Under the action of the shaking component, the vibration of the powder screen slot plate 5 is more sufficient. One end of the spring 13 in the shaking component is installed on the fixed plate 12, and the other end is connected to the powder screen slot plate 5 through the connecting plate 14. When the powder screen slot plate 5 vibrates, the connecting plate 14 is on the fixed plate 12 Internal sliding, the spring 13 plays the role of buffering and providing restoring force, so that the powder screen slot plate 5 can vibrate continuously, and the diameters of the multiple filter ports 6 below the inner wall of the powder screen slot plate 5 are arranged from small to large from top to bottom. During the vibration process, the material is screened into different discharge boxes 4 through different filter ports 6 according to the particle size for centralized collection. In the process of powder screening and vibration, the material is fully mixed, which is convenient for subsequent testing and improves the accuracy of the test results. The coal sample mixing device for coal quality testing realizes effective processing of coal samples through the synergistic effect of crushing, powder screening, mixing and other steps, and improves the mixing uniformity of coal samples and the accuracy of test results.

[0031] Example 2: Figure 5 and6 As shown, in order to further improve the powder screening effect and crushing efficiency, two fixed shafts 19 are rotatably installed inside the crushing box 2, and the shaft walls of the two fixed shafts 19 are installed with arc-shaped pressure plates 24. One end of the two fixed shafts 19 is installed with a rotating plate 20, and the outer walls of the two rotating plates 20 are slidably installed with limit blocks 22. The outer walls of the two limit blocks 22 are slidably installed with limit platforms 21. The two limit platforms 21 are both installed on the crushing box 2, and one side of the two limit blocks 22 is installed with limit springs 23. The other ends of the two limit springs 23 are respectively installed on the corresponding limit platforms 21. The inside of the two rotating plates 20 is rotatably installed with handles 25, and one side of the two handles 25 is jointly slidably installed with a guide platform 26. One side of the guide platform 26 is installed with a fixed Rod 27, the fixed rod 27 is installed on the crushing box 2. After the coal is poured into the crushing box 2, the rotating plate 20 is manually controlled. The rotating plate 20 drives the fixed shaft 19 to rotate, so that the arc-shaped pressure plate 24 on the fixed shaft 19 compacts the material inside. After the material is compacted, it fits more closely with the two crushing rollers 16, which improves the crushing efficiency and powder screening effect. The handle 25 on the rotating plate 20 is moved to slide inside the guide platform 26 on the fixed rod 27. The limit platform 21 limits the limit block 22. When moving, the rotating plate 20 slides inside the corresponding limit block 22. After releasing the hand, the force of the corresponding limit spring 23 pushes the rotating plate 20 to drive the fixed shaft 19 and the arc-shaped pressure plate 24 to rotate back to their original positions without affecting the unloading process.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal sample mixing device for coal quality testing, comprising a device body (1), characterized in that: A crushing box (2) is installed on the top of the equipment body (1), and a crushing mechanism is provided inside the crushing box (2). A plurality of discharge ports (3) are provided on one side of the equipment body (1), and discharge boxes (4) are slidably installed inside the plurality of discharge ports (3). A powder sieve slot plate (5) is provided above the plurality of discharge boxes (4), and a plurality of filter ports (6) are provided below the inner wall of the powder sieve slot plate (5). The diameters of the plurality of filter ports (6) are arranged from small to large from top to bottom. A rotating block (7) is hinged on one side, and the rotating block (7) is rotatably mounted inside the device body (1). A collision seat (8) is mounted on one side of the powder sieve slot plate (5), and a cam (9) is provided below the collision seat (8). A transmission shaft (10) is mounted on one side of the cam (9), and a first motor (11) is mounted on the other end of the transmission shaft (10). The first motor (11) is mounted on the device body (1), and a shaking component for controlling the vibration of the powder sieve slot plate (5) is provided on the left side of the inner wall of the device body (1).

2. A coal sample mixing device for coal quality testing according to claim 1, characterized in that: The shaking assembly includes a fixed plate (12), the fixed plate (12) is installed on the device body (1), a connecting plate (14) is slidably installed inside the fixed plate (12), a plurality of springs (13) are installed on one side of the connecting plate (14), the other ends of the plurality of springs (13) are installed on the fixed plate (12), and one side of the connecting plate (14) is installed on the powder sieve slot plate (5).

3. The coal sample mixing device for coal quality testing according to claim 1, characterized in that: The crushing mechanism comprises two main shafts (15), both of which are rotatably mounted inside a crushing box (2), and the shaft walls of the two main shafts (15) are both mounted with crushing rollers (16), one end of each of the two main shafts (15) passes through one side of the inner wall of the crushing box (2) and is mounted with a driving wheel (17), one side of one of the driving wheels (17) is mounted with a second motor (18), and the second motor (18) is mounted on the device body (1).

4. The coal sample mixing device for coal quality testing according to claim 1, characterized in that: The transmission shaft (10) is rotatably mounted inside the device body (1).

5. The coal sample mixing device for coal quality testing according to claim 1, characterized in that: The front surfaces of the plurality of discharge boxes (4) are all provided with handles, and the outer walls of the plurality of handles are all arranged in an arc shape.

6. The coal sample mixing device for coal quality testing according to claim 1, characterized in that: Two fixed shafts (19) are rotatably installed inside the crushing box (2), and the shaft walls of the two fixed shafts (19) are both installed with arc-shaped pressure plates (24). One end of the two fixed shafts (19) is installed with a rotating plate (20), and the outer walls of the two rotating plates (20) are both slidably installed with limit blocks (22). The outer walls of the two limit blocks (22) are both slidably installed with limit platforms (21), and the two limit platforms (21) are both installed on the crushing box (2). One side of the two limit blocks (22) is installed with a limit spring (23), and the other ends of the two limit springs (23) are respectively installed on the corresponding limit platforms (21).

7. A coal sample mixing device for coal quality testing according to claim 6, characterized in that: A handle (25) is rotatably mounted inside the two rotating plates (20), a guide platform (26) is slidably mounted on one side of the two handles (25), a fixing rod (27) is mounted on one side of the guide platform (26), and the fixing rod (27) is mounted on the crushing box (2).

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