Multipurpose mechanical sampling and sample preparation device for coal

Abstract

The invention relates to the technical field of coal, and discloses a multipurpose mechanical coal sampling and sample preparation device, which comprises: a support, which comprises a first support plate, a second support plate, a third support plate, a fourth support plate and a fifth support plate which are arranged in parallel from bottom to top in sequence, and every two adjacent support plates are fixed through a support column; the crushing box is fixedly arranged above the fifth supporting plate; the conveying mechanism comprises a first conveying belt and a second conveying belt which are fixedly arranged above the fifth supporting plate and the third supporting plate respectively. The division mechanism comprises a first riffle, a second riffle and a material distribution bin, the material distribution bin is fixedly arranged on a second supporting plate, a plurality of material distribution plates are arranged in the material distribution bin, the first riffle is fixedly arranged on a fourth supporting plate, a sampling barrel is arranged below one discharging port, a discharging groove matched with the other discharging port is formed in the fourth supporting plate, and a sampling assembly is arranged on a fifth supporting plate. And the riffle 2 is fixedly arranged on the support plate 1. The splitting device has the advantages that the splitting frequency is increased, the conveying system stably supplies materials, and the matching degree between feeding equipment and the splitting device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal, and specifically refers to a multi-purpose coal mechanical sampling and sample preparation device. Background Art

[0002] A coal sampling and sample preparation device is equipment used for sampling and sample preparation of coal. It usually consists of a sampler, a crusher, a splitter, a sample collector, etc. The sampler automatically collects representative samples from the coal stream, the crusher crushes the collected samples, the splitter reduces the samples in a certain proportion to obtain a small amount of samples that meet the requirements of experimental analysis, and the sample collector is used to collect and store the final samples. This device can effectively reduce the errors in manual sampling and sample preparation, improve the accuracy and reliability of coal quality detection, and is widely used in coal production, processing, transportation, and use.

[0003] Although the current coal sampling and sample preparation devices have the functions of crushing and splitting, in actual use, there are obvious deficiencies in both the crushing degree and the splitting effect. The crushing link is difficult to meet the refined processing requirements of coal samples with different hardnesses, resulting in uneven particle sizes of the discharged materials; the number of splitting times is insufficient, affecting the representativeness of the samples. At the same time, the transmission capacity of the device is limited, and material accumulation and spilling often occur in belt or pneumatic transmission. When cooperating with the splitter, it cannot supply materials stably, and the coordination between the two is poor, further reducing the overall efficiency and accuracy of sampling and sample preparation. Summary of the Invention

[0004] In order to solve the above various problems, the present invention proposes a multi-purpose coal mechanical sampling and sample preparation device that increases the number of splitting times, stably supplies materials in the transmission system, and improves the cooperation degree between the feeding equipment and the splitter.

[0005] To solve the above technical problems, the technical solution proposed by the present invention is: a multi-purpose coal mechanical sampling and sample preparation device, comprising:

[0006] A bracket, including a first support plate, a second support plate, a third support plate, a fourth support plate, and a fifth support plate that are sequentially arranged in parallel from bottom to top, and are supported and fixed by a plurality of columns between two adjacent support plates;

[0007] A crushing box, fixedly arranged above the fifth support plate, with a crushing assembly inside and a discharge slot on its lower wall;

[0008] A transmission mechanism, including a first conveyor belt and a second conveyor belt, the first conveyor belt and the second conveyor belt are respectively fixedly arranged above the fifth support plate and the third support plate, and the first conveyor belt is arranged below the crushing box;

[0009] The sample dividing mechanism includes riffle divider one, riffle divider two and a material distribution bin. The material distribution bin is fixedly arranged on the second support plate and is located below the end of the second conveyor belt. A number of rotatable material distribution plates are equidistantly arranged inside it, and discharge holes are provided on the bottom surface. The riffle divider one is fixedly arranged on the fourth support plate, and there are two discharge ports at the bottom, and a sampling cylinder is arranged below one of the discharge ports. An outlet chute matching the other discharge port is provided on the fourth support plate, and the outlet chute is located above the second conveyor belt. A sampling assembly is provided on the fifth support plate directly above the inlet of the riffle divider one. The riffle divider two is fixedly arranged on the first support plate, its inlet is arranged directly below the discharge hole, and there are two discharge drawers at the lower discharge port.

[0010] Further, there are four same-level support columns, which are respectively fixedly arranged at the four corners of the support plate connected to their upper ends.

[0011] Further, the crushing assembly includes two mutually cooperating crushing rollers, which are rotatably connected and arranged in the crushing box, and are driven to rotate relatively by a motor one fixedly arranged on the side wall of the crushing box.

[0012] Further, a pushing plate is arranged below the crushing box, and a material conveying gap is formed between the pushing plate and the first conveyor belt.

[0013] Further, a rotating shaft is rotatably connected at the center of the material distribution bin, and the rotating shaft is driven by a motor two fixedly arranged at the bottom of the material distribution bin. The material distribution plates are fixedly arranged on the side wall of the rotating shaft and are equidistantly arranged around the rotating shaft. The material distribution plates are arc-shaped plates.

[0014] Further, the sampling assembly includes a baffle plate and a sampling hole. The baffle plate is arranged above the fifth support plate and on one side of the first conveyor belt, and it can be driven by a motor three fixedly arranged on the fifth support plate to rotate above the first conveyor belt. The sampling hole is arranged directly above the inlet of the riffle divider one on the fifth support plate and is located below the baffle plate on one side of the first conveyor belt.

[0015] The advantages of the present invention compared with the prior art are as follows: The device is provided with riffle divider one, riffle divider two and a material distribution bin. The material distribution plates in the material distribution bin cooperate with riffle divider one and riffle divider two to achieve multiple material divisions. Multiple sample dividing steps increase the number of sample divisions and can make the sample more representative.

[0016] The settings of the first conveyor belt and the second conveyor belt ensure the continuous transmission of coal. A material conveying gap is formed between the pushing plate below the crushing box and the first conveyor belt, which can evenly spread the crushed coal on the conveyor belt, avoiding the blockage and unevenness of the feeding, and ensuring the stable feeding of the transmission system. The material distribution bin is located below the end of the second conveyor belt, and can directly receive the coal transmitted by the second conveyor belt. The rotation of the material distribution plates in the material distribution bin can evenly distribute the material to the riffle divider two. At the same time, the sampling assembly can accurately intercept the sample and convey it to the riffle divider one, ensuring the efficient cooperation between the feeding equipment and the sample divider. Brief Description of the Drawings

[0017] Figure 1 is a three - dimensional view of the present invention Figure 1 ;

[0018] Figure 2 is a three - dimensional view of the present invention Figure 2 ;

[0019] Figure 3 is a top view of the present invention;

[0020] Figure 4 is a front view of the present invention;

[0021] Figure 5 is a rear view of the present invention;

[0022] Figure 6 is a side view of the present invention.

[0023] As shown in the figure: 1. First support plate; 2. Second support plate; 3. Third support plate; 4. Fourth support plate; 5. Fifth support plate; 6. Support pillar; 7. Crushing box; 8. First conveyor belt; 9. Second conveyor belt; 10. First diverter; 11. Second diverter; 12. Feeding bin; 13. Feeding plate; 14. Discharge hole; 15. Sampling cylinder; 16. Discharge drawer; 17. Crushing roller; 18. First motor; 19. Pushing plate; 20. Rotating shaft; 21. Second motor; 22. Baffle plate; 23. Sampling hole; 24. Third motor. Detailed Embodiment

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Combined with attached drawing Figure 1 、attached drawing Figure 4 、attached drawing Figure 5 A multi - purpose coal mechanical sampling and preparation device includes: a bracket, which includes a first support plate 1, a second support plate 2, a third support plate 3, a fourth support plate 4, and a fifth support plate 5 that are arranged in parallel from bottom to top in sequence. The adjacent support plates are supported and fixed by a number of support pillars 6. There are four support pillars 6 on the same layer, and they are respectively fixed at the four corners of the support plate connected to their upper ends, which can make the structure of the bracket more stable. The four support pillars 6 are evenly distributed, which can effectively disperse the weight of the upper components, ensure the overall stability of the device, and avoid tilting due to uneven force.

[0026] Combined with attached drawing Figure 2 、attached drawing Figure 3, the crushing box 7 is fixedly arranged above the fifth support plate 5, and a crushing assembly is arranged inside it. There is a discharge slot on the lower wall. The crushing assembly includes two cooperating crushing rollers 17. The crushing rollers 17 are rotatably connected and arranged inside the crushing box 7, and are driven to rotate relatively by a first motor 18 fixedly arranged on the side wall of the crushing box 7, which can efficiently crush coal. Through the extrusion and grinding of the two crushing rollers 17, larger pieces of coal can be crushed into appropriate particle sizes to meet the requirements of subsequent sample collection and preparation.

[0027] Combined with the attached Figure 1 and the attached Figure 6 , the conveying mechanism includes a first conveyor belt 8 and a second conveyor belt 9. The first conveyor belt 8 and the second conveyor belt 9 are respectively fixedly arranged above the fifth support plate 5 and the third support plate 3, and the first conveyor belt 8 is arranged below the crushing box 7. A pushing plate 19 is arranged below the crushing box 7. A feeding gap is formed between the pushing plate 19 and the first conveyor belt 8, which can evenly spread the crushed coal on the first conveyor belt 8, ensuring the continuity and uniform distribution of coal conveying.

[0028] Combined with the attached Figure 2 and the attached Figure 3 , the reduction mechanism includes a first riffle 10, a second riffle 11 and a feeding bin 12. The feeding bin 12 is fixedly arranged on the second support plate 2 and is located below the end of the second conveyor belt 9. A number of rotatable feeding plates 13 are equidistantly arranged inside it, and there are discharge holes 14 on the bottom surface. A rotating shaft 20 is rotatably connected at the center inside the feeding bin 12. The rotating shaft 20 is driven by a second motor 21 fixedly arranged at the bottom of the feeding bin 12. The feeding plates 13 are fixedly arranged on the side wall of the rotating shaft 20 and are equidistantly arranged around the rotating shaft 20. The feeding plates 13 are arc-shaped plates, which can achieve uniform feeding. The arc-shaped feeding plates 13 can better guide the coal to fall, improving the accuracy and uniformity of feeding.

[0029] Combined with the attached Figure 1 and the attached Figure 3 and the attached Figure 4, the riffle 10 is fixedly arranged on the fourth support plate 4, with two discharge ports at the bottom, and a sampling cylinder 15 is arranged below one of the discharge ports. The fourth support plate 4 is provided with a discharge chute matching the other discharge port, and the discharge chute is located above the second conveyor belt 9. A sampling assembly is arranged on the fifth support plate 5 directly above the feed port of the riffle 10. The riffle 11 is fixedly arranged on the first support plate 1, its feed port is arranged directly below the discharge hole 14, and two discharge drawers 16 are arranged at the lower discharge port. The sampling assembly includes a baffle plate 22 and a sampling hole 23. The baffle plate 22 is arranged above the fifth support plate 5 and on one side of the first conveyor belt 8, and it can be driven by a motor three 24 fixedly arranged on the fifth support plate 5 to rotate above the first conveyor belt 8. The sampling hole 23 is arranged on the fifth support plate 5 directly above the feed port of the riffle 10 and below the baffle plate 22 on one side of the first conveyor belt 8, which can accurately intercept samples. By controlling the rotation of the baffle plate 22, an appropriate amount of coal samples can be obtained, improving the accuracy and operability of sampling.

[0030] Specific embodiments of the present invention: Connect the device to an external power source, place the coal to be sampled and prepared in the crushing box 7, start the motor one 18 fixed on the side wall of the crushing box 7, drive the two crushing rollers 17 to rotate relatively, extrude and grind the coal, break the larger pieces of coal into appropriate particle sizes, and the crushed coal falls through the discharge chute opening on the lower wall of the crushing box 7.

[0031] The crushed coal falls on the first conveyor belt 8. As the first conveyor belt 8 drives the coal to move, the coal is spread out when it passes through the pusher plate 19 and is blocked by it, and continues to be transported through the feeding gap between the pusher plate 19 and the first conveyor belt 8. When sampling is required, the motor three 24 fixed on the fifth support plate 5 drives the baffle plate 22 to rotate above the first conveyor belt 8. An appropriate amount of coal is blocked by the baffle plate 22 and remains on the first conveyor belt 8. Continue to control the motor three 24 to drive the baffle plate 22 to rotate, scrape the blocked coal to one side of the first conveyor belt 8, and fall into the riffle 10 through the sampling hole 23 on the fifth support plate 5. The sampling cylinder 15 below one of the discharge ports at the bottom of the riffle 10 collects the samples, and the coal from the other discharge port falls through the discharge chute onto the second conveyor belt 9 and continues to be transported.

[0032] At the same time, the coal on the first conveyor belt 8 also falls on the second conveyor belt 9. The second conveyor belt 9 transports the coal to the distribution bin 12. The motor two 21 fixed at the bottom of the distribution bin 12 drives the rotating shaft 20 to rotate, driving the distribution plate 13 to rotate. The coal evenly falls within the area formed by each distribution plate 13, realizing further uniform distribution. And when the distribution plate 13 rotates, it can scrape the coal to the discharge hole 14 and fall into the riffle 11. The two discharge drawers 16 at the lower discharge port of the riffle 11 can respectively collect the samples after further sub-sampling and reduction. Then, randomly take out the coal in one of the discharge drawers 16 and mix it with the samples in the sampling cylinder 15 to obtain a more representative sample, completing the entire sampling and sample preparation process.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood according to specific circumstances.

[0034] The above describes the present invention and its implementation manners. Such a description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the gist of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A multi-purpose coal mechanical sampling and sample preparation device, characterized in that, Including: A support, including a first support plate (1), a second support plate (2), a third support plate (3), a fourth support plate (4) and a fifth support plate (5) arranged in parallel from bottom to top, and several support columns (6) are used to support and fix between two adjacent support plates; A crushing box (7) is fixedly arranged above the fifth support plate (5), and a crushing component is arranged inside it, and a discharge chute is arranged on the lower wall; A transmission mechanism, including a first conveyor belt (8) and a second conveyor belt (9), the first conveyor belt (8) and the second conveyor belt (9) are respectively fixedly arranged above the fifth support plate (5) and the third support plate (3), and the first conveyor belt (8) is arranged below the crushing box (7); A quartering mechanism, including a first riffle (10), a second riffle (11) and a distribution bin (12), the distribution bin (12) is fixedly arranged on the second support plate (2) and is located below the end of the second conveyor belt (9), and several rotatable distribution plates (13) are equidistantly arranged inside it, and a discharge hole (14) is arranged on the bottom surface, the first riffle (10) is fixedly arranged on the fourth support plate (4), and there are two discharge ports at the bottom, and a sampling cylinder (15) is arranged below one of the discharge ports, and a discharge chute matching the other discharge port is arranged on the fourth support plate (4), and the discharge chute is located above the second conveyor belt (9), and a sampling component is arranged on the fifth support plate (5) directly above the feed inlet of the first riffle (10), the second riffle (11) is fixedly arranged on the first support plate (1), its feed inlet is arranged directly below the discharge hole (14), and two discharge drawers (16) are arranged at the lower end discharge port.

2. The multi-purpose coal mechanical sampling and sample preparation device according to claim 1, characterized in that: There are four same-level support columns (6), and they are respectively fixedly arranged at the four corners of the support plate connected to their upper ends.

3. The multi-purpose coal mechanical sampling and sample preparation device according to claim 1, characterized in that: The crushing component includes two mutually cooperating crushing rollers (17), the crushing rollers (17) are rotatably connected and arranged in the crushing box (7), and are driven to rotate relatively by a first motor (18) fixedly arranged on the side wall of the crushing box (7).

4. A multi-purpose coal mechanical sampling device according to claim 1, characterized in that: A pushing plate (19) is arranged below the crushing box (7), and a feeding gap is formed between the pushing plate (19) and the first conveyor belt (8).

5. A multi-purpose coal mechanical sampling device according to claim 1, characterized in that: A rotating shaft (20) is rotatably connected at the center inside the distribution bin (12), the rotating shaft (20) is driven by a second motor (21) fixedly arranged at the bottom of the distribution bin (12), the distribution plates (13) are fixedly arranged on the side wall of the rotating shaft (20) and are equidistantly arranged around the rotating shaft (20), and the distribution plates (13) are arc-shaped plates.

6. The multi-purpose coal mechanical sampling and sample preparation device according to claim 1, characterized in that: The sampling component includes a baffle plate (22) and a sampling hole (23), the baffle plate (22) is arranged above the fifth support plate (5) and on one side of the first conveyor belt (8), and it can be driven by a third motor (24) fixedly arranged on the fifth support plate (5) to rotate above the first conveyor belt (8), the sampling hole (23) is arranged on the fifth support plate (5) directly above the feed inlet of the first riffle (10), and is located below the baffle plate (22) on one side of the first conveyor belt (8).

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