Accurate sampling system for coal sample

Abstract

The utility model discloses an accurate sampling system for a coal sample, and belongs to the technical field of coal sampling. The accurate coal sample sampling system comprises a sampling device, a conveying mechanism and a sample collector, the transportation mechanism and the sample collector are respectively positioned on the outer side of the sampling device; the sampling device comprises a shell, a material cavity, a material guide notch, a motor and a sampling head; the material cavity is positioned in the shell of the sampling device; the material guide notch is positioned at the lower end of the shell; the motor is located at the rear end of the shell and fixedly connected with the shell. The periphery of the sampling head is always attached to and propped against the inner wall of the material cavity; the sampling head further comprises a sampling port and a sampling inclined plate; a cavity is formed in the sampling head; the sampling port is positioned at one side end of the sampling head; a sampling inclined plate is arranged on the lower wall, abutting against the inner wall of the material cavity, of the opening end of the sampling port, one end of the sampling inclined plate is fixedly connected with the sampling port, and the other end of the sampling inclined plate abuts against the inner wall of the material cavity all the time. The system can realize full-automatic sampling and sample collection, and is compact and reasonable in structure, firm, durable, reliable in performance and easy to maintain and repair.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal sampling, and more specifically, relates to a precise coal sample sampling system. Background Art

[0002] China is a major coal-producing country. Due to the uneven particle size distribution of coal, there are large quality differences. Therefore, it is very important to take representative coal samples for testing in coal trade. At present, for coal sampling, generally, samples are taken during the process of coal transportation. Traditional coal sampling technology mainly takes coal samples manually from the coal conveyed on the conveyor belt arranged at the dock.

[0003] Specifically, during the process of coal transportation by the conveyor belt, manual sampling generally determines the number of sub-samples according to the total amount of batch coal incoming material, and then calculates the sampling interval time. The sampling personnel use sampling tools to take coal samples at the same or different sampling points on the conveyor belt. There are human errors, which are related to the technical proficiency and especially the professional ethics of the sampling personnel. Moreover, the sampling accuracy is low, the labor intensity is high, and the safety is poor. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a precise coal sample sampling system, which can realize full-automatic sampling and sample collection, and the system structure is compact, reasonable, durable, reliable in performance, and easy to maintain and overhaul.

[0005] A precise coal sample sampling system of the utility model includes a sampling device, a transportation mechanism, and a sample collector; the transportation mechanism and the sample collector are respectively located outside the sampling device; the sampling device includes a housing, a material cavity, a material guiding groove opening, a motor, and a sampling head; the material cavity is located inside the housing of the sampling device, the material guiding groove opening is located at the lower end of the housing, and the material guiding groove opening is communicated with the material cavity; the motor is located at the rear end of the housing, and the motor is fixedly connected with the housing; the output end of the motor is electrically connected with the sampling head; the outer periphery of the sampling head is always in close contact with the inner wall of the material cavity; the sampling head further includes a sampling port and a sampling inclined plate; the inside of the sampling head is a cavity to form a sampling cavity; the sampling port is located at one side end of the sampling head; a sampling inclined plate is provided at the opening end of the sampling port in contact with the lower wall of the inner wall of the material cavity, one end of the sampling inclined plate is fixedly connected with the sampling port, and the other end of the sampling inclined plate is always in contact with the inner wall of the material cavity.

[0006] As a further improvement of the utility model, it further includes a feeding pipeline and a discharging port; the feeding pipeline is located on one side of the material cavity, and the feeding pipeline is communicated with the material cavity; the discharging port is located inside the material cavity and is arranged close to one side end of the feeding pipeline, and the discharging port is communicated with the material cavity and the feeding pipeline.

[0007] As a further improvement of the present utility model, one end of the blanking pipeline is communicated with the material chamber, and the other end of the blanking pipeline is located above the sampler.

[0008] As a further improvement of the present utility model, the motor includes a rotating shaft, and the rotating shaft extends through the outer shell and is disposed in the material chamber; the sampling head is fixedly connected to the end of the rotating shaft in the material chamber.

[0009] As a further improvement of the present utility model, a fixed support rod is further provided at the lower end of the sampling device.

[0010] As a further improvement of the present utility model, the transportation mechanism is located outside the guiding chute opening, and the transportation mechanism is aligned with the guiding chute opening; there is a gap between the transportation mechanism and the guiding chute opening; a support rod is provided at the lower end of the transportation mechanism; a guiding plate is further provided at one end of the transportation mechanism close to the guiding chute opening, one end of the guiding plate is fixedly connected to one end of the transportation mechanism close to the guiding chute opening, and the other end of the guiding plate abuts against the guiding chute opening.

[0011] As a further improvement of the present utility model, the sampler is located at the end of the blanking pipeline, and the sampler includes a sampler frame, a sampling port and a plurality of sampling bottles; the sampling port is disposed through the upper end of the sampling frame, and the sampling port is aligned with the end of the blanking pipeline; the sampling bottles are located at the lower end of the sampling port, and the size of the sampling port matches the size of the opening of the sampling bottle.

[0012] As a further improvement of the present utility model, the sampler further includes a sampling turntable, a plurality of sampling bottles are placed on the upper end of the sampling turntable, and the plurality of sampling bottles are detachably connected to the sampling turntable; a rotating rod is provided in the middle of the sampling turntable, and the rotating rod is electrically connected to the corresponding motor outside.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] This device can fully automatically complete the entire processes of sampling and sample collection. The whole system has a compact and reasonable structure, is durable, has reliable performance, and is easy to maintain and repair. The operation of this device is automatically controlled by a PLC industrial programmable controller, and has the advantages of high technical content, strong automatic control performance, and easy modification of the operation program. It is also more convenient and safe compared with traditional manual sampling. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 It is a front sectional structural schematic diagram of the sampling device of the present utility model;

[0017] Figure 3 It is a side view structural schematic diagram of the present utility model;

[0018] Figure 4This is a schematic side-sectional view of the sampling device of the present utility model.

[0019] Description of reference numerals in the figure:

[0020] Sampling device 1, material guiding chute opening 11, blanking pipeline 12, motor 13, rotating shaft 131, sampling head 14, sampling port 141, sampling inclined plate 142, discharge port 15, transportation mechanism 2, support rod 21, material guiding plate 22, sample collector 3, sample collection port 31, sample collection bottle 32, sample collection turntable 33, rotating rod 331. Specific implementation manner

[0021] Specific embodiment 1: Please refer to Figures 1-4 A coal sample precise sampling system, including a sampling device 1, a transportation mechanism 2 and a sample collector 3.

[0022] The sampling device 1 includes a housing, a material guiding chute opening 11, a blanking pipeline 12, a motor 13, a sampling head 14 and a discharge port 15. A material cavity is provided inside the housing. The material guiding chute opening 11 is located at the lower end of the housing, and the material guiding chute opening 11 communicates with the material cavity. The blanking pipeline 12 is located on one side of the material cavity, and the blanking pipeline 12 communicates with the material cavity. The motor 13 is located at the rear end of the housing, and the motor 13 is fixedly connected to the housing. The motor 13 includes a rotating shaft 131, and the rotating shaft 131 penetrates through the housing and extends into the material cavity. The sampling head 14 is fixedly connected to the end of the rotating shaft 131 in the material cavity. The material cavity is circular, and the outer periphery of the sampling head 14 always fits and abuts against the inner wall of the material cavity. The sampling head 14 includes a sampling port 141 and a sampling inclined plate 142. The inside of the sampling head 14 is a cavity to form a sampling cavity. The sampling port 141 is located at one side end of the sampling head 14, so that the coal sample placed in the material cavity can enter the sampling cavity. A sampling inclined plate 142 is provided at the lower wall of the opening end of the sampling port 141 abutting against the inner wall of the material cavity. One end of the sampling inclined plate 142 is fixedly connected to the sampling port 141, and the other end of the sampling inclined plate 142 always abuts against the inner wall of the material cavity. The discharge port 15 is located in the material cavity and is arranged near one side end of the blanking pipeline 12. The discharge port 15 communicates with the material cavity and the blanking pipeline 2. One end of the blanking pipeline 12 communicates with the material cavity, and the other end of the blanking pipeline 12 is located above the sample collector 3. A fixed support rod is further provided at the lower end of the sampling device 1 to fix the stability of the sampling device 1.

[0023] The conveying mechanism 2 is located outside the feeding chute opening 11. The conveying mechanism 2 is arranged in alignment with the feeding chute opening 11 so that the coal sample conveyed by the conveying mechanism 2 can enter the material cavity of the sampling device 1. There is a gap between the conveying mechanism 2 and the feeding chute opening 11. A support rod 21 is provided at the lower end of the conveying mechanism 2 to support the stability of the conveying mechanism 2. A guide plate 22 is also provided at one end of the conveying mechanism 2 close to the feeding chute opening 11. One end of the guide plate 22 is fixedly connected to the end of the conveying mechanism 2 close to the feeding chute opening 11, and the other end of the guide plate 22 abuts against the feeding chute opening 11 so that the coal sample on the conveying mechanism 2 can pass through the gap between the conveying mechanism 2 and the feeding chute opening 11 without leaking the coal sample.

[0024] The sample collector 3 is located at the end of the blanking pipeline 12. The sample collector 3 includes a sample collector frame, a sample collection port 31, a plurality of sample collection bottles 32 and a sample collection turntable 33. The sample collection port 31 is provided through the upper end of the sample collection frame. The sample collection port 31 is arranged in alignment with the end of the blanking pipeline 12 so that the coal sample taken out by the blanking pipeline 12 passes through the sample collection port 31. The sample collection bottles 32 are located at the lower end of the sample collection port 31, and the size of the sample collection port 31 matches the size of the opening of the sample collection bottles 32. A plurality of sample collection bottles 32 are placed on the upper end of the sample collection turntable 33, and the plurality of sample collection bottles 32 are detachably connected to the sample collection turntable 33. A rotating rod 331 is provided in the middle of the sample collection turntable 33, and the rotating rod 331 is electrically connected to the corresponding motor outside to drive the sample collection turntable 33 to rotate. When the coal sample in the sample collection bottle 32 is full, the sample collection turntable 33 rotates to align the next sample collection bottle 32 with the sample collection port 31.

[0025] Working principle:

[0026] This device transports the coal sample to the feeding chute opening through the conveying mechanism and enters the material cavity of the sampling device through the feeding chute opening. Then, the motor arranged behind the sampling device drives the sampling head to rotate through the rotating shaft. The sampling head rotates along the inner wall of the material cavity of the sampling device. When passing through the feeding chute opening, the coal sample is inserted into the material cavity of the sampling head through the sampling port and the sampling inclined plate arranged on the sampling head; when the sampling port is located at the discharge port, the coal sample will pass through the discharge port from the material cavity of the sampling head and fall into the blanking pipeline. Finally, it is aligned with the sample collection port through the blanking pipeline and enters the sample collection bottle to complete the coal sample collection. When one of the sample collection bottles is full, the sample collection turntable can be rotated to align the next sample collection bottle with the sample collection port, and the coal sample collection work is completed in sequence..

Claims

1. A precise coal sample sampling system, comprising a sampling device (1), a transportation mechanism (2) and a sample collector (3); the transportation mechanism (2) and the sample collector (3) are respectively located outside the sampling device (1); characterized in that: The sampling device (1) includes a housing, a material chamber, a material guiding slot opening (11), a motor (13) and a sampling head (14); the material chamber is located inside the housing of the sampling device (1), the material guiding slot opening (11) is located at the lower end of the housing, and the material guiding slot opening (11) communicates with the material chamber; the motor (13) is located at the rear end of the housing, and the motor (13) is fixedly connected to the housing; the output end of the motor (13) is electrically connected to the sampling head (14); the outer periphery of the sampling head (14) is always in close contact with the inner wall of the material chamber; the sampling head (14) further includes a sampling port (141) and a sampling inclined plate (142); the inside of the sampling head (14) is a cavity to form a sampling chamber; the sampling port (141) is located at one side end of the sampling head (14); a sampling inclined plate (142) is provided at the opening end of the sampling port (141) in contact with the lower wall of the inner wall of the material chamber, one end of the sampling inclined plate (142) is fixedly connected to the sampling port (141), and the other end of the sampling inclined plate (142) is always in contact with the inner wall of the material chamber.

2. The precise coal sample sampling system according to claim 1, characterized in that: It further includes a blanking pipeline (12) and a discharge port (15); the blanking pipeline (12) is located on one side of the material chamber, and the blanking pipeline (12) communicates with the material chamber; the discharge port (15) is located inside the material chamber and is arranged near one side end of the blanking pipeline (12), and the discharge port (15) communicates with the material chamber and the blanking pipeline (12).

3. The precise coal sample sampling system according to claim 2, characterized in that: One end of the blanking pipeline (12) communicates with the material chamber, and the other end of the blanking pipeline (12) is located above the sampler (3).

4. The precise coal sample sampling system according to claim 1, characterized in that: The motor (13) includes a rotating shaft (131), and the rotating shaft (131) extends through the housing and is arranged inside the material chamber; the sampling head (14) is fixedly connected to the end of the rotating shaft (131) inside the material chamber.

5. The precise coal sample sampling system according to claim 1, characterized in that: A fixed support rod is further provided at the lower end of the sampling device (1).

6. The precise coal sample sampling system according to claim 1, characterized in that: The conveying mechanism (2) is located outside the material guiding slot opening (11), and the conveying mechanism (2) is arranged in alignment with the material guiding slot opening (11); there is a gap between the conveying mechanism (2) and the material guiding slot opening (11); a support rod (21) is provided at the lower end of the conveying mechanism (2); a material guiding plate (22) is further provided at one end of the conveying mechanism (2) close to the material guiding slot opening (11), one end of the material guiding plate (22) is fixedly connected to one end of the conveying mechanism (2) close to the material guiding slot opening (11), and the other end of the material guiding plate (22) abuts against the material guiding slot opening (11).

7. The precise coal sample sampling system according to claim 1, characterized in that: The sampler (3) is located at the end of the blanking pipeline (12), and the sampler (3) includes a sampler frame, a sampling port (31) and a plurality of sampling bottles (32); the sampling port (31) is provided through the upper end of the sampling frame, and the sampling port (31) is arranged in alignment with the end of the blanking pipeline (12); the sampling bottles (32) are located at the lower end of the sampling port (31), and the size of the sampling port (31) matches the size of the opening of the sampling bottles (32).

8. The precise coal sample sampling system according to claim 1, wherein: The sampler (3) further includes a sampling turntable (33), a plurality of sampling bottles (32) are placed on the upper end of the sampling turntable (33), and the plurality of sampling bottles (32) are detachably connected to the sampling turntable (33); a rotating rod (331) is provided in the middle of the sampling turntable (33), and the rotating rod (331) is electrically connected to the corresponding motor outside.

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