Sample combining and splitting device suitable for automatic coal sample processing line

Abstract

The utility model relates to a combined sample division device applicable to an automatic coal sample processing line, which comprises a combined sample mixing device, a barrel washing brush, a sample barrel weighing device and a support, a combined sample feeding conveyor is fixedly mounted on the upper portion of the support, and the combined sample mixing device is mounted on the upper portion of the front end of the combined sample feeding conveyor. A scraper divider is fixedly installed on the upper side of the middle of the sample combining and feeding conveyor, a feeder abandoned sample discharging port is formed in the lower side of the rear portion of the sample combining and feeding conveyor, and a scraper divider discharging port and a second scraper divider discharging port are formed in the two sides of the scraper divider. According to the utility model, the sample blending and mixing device, the scraper splitter, the temporary storage sample conveyor and the reciprocating splitter are integrated together through the sample feeding conveyor and the material flow shaping conveyor, and the temporary storage sample conveyor and the sample incoming conveyor are matched, so that the coal sample blending and splitting processes can be integrated together, the full-process automatic treatment can be realized, and the production efficiency is improved. 24-hour continuous sample preparation is achieved, it can be effectively guaranteed that the coal samples have statistical consistency, and loss caused by manual carrying is eradicated.

Description

Technical Field

[0001] This utility model relates to the field of coal sample testing, specifically a sample combining and reducing device applicable to automated coal sample processing lines. Background Technology

[0002] To understand the various average values ​​of coal, it is necessary to select an appropriate amount of coal sample from a large quantity of coal. The original coal sample volume needs to be reduced to a scale suitable for laboratory analysis using scientific methods. This avoids the operational burden caused by processing a large number of samples and ensures that the reduced sample has statistical consistency with the original coal sample in terms of particle size, moisture, ash content, and other characteristics. This ensures that the analysis results can truly reflect the characteristics of the original material. Currently, sample reduction involves multiple devices, and manual material transfer is required between each device. This process is time-consuming, wasteful, and cumbersome in data recording, resulting in a low degree of automation in the entire workflow.

[0003] Currently, a utility model patent with publication number CN216484259U discloses a large sample mixing and reduction device for coal quality analysis, relating to the field of coal quality analysis technology. The large sample mixing and reduction device for coal quality analysis includes: a device housing, with multiple connecting columns fixedly connected to the side of the housing; a device base fixedly connected to the lower surface of the connecting columns; a top cover fixedly connected to the upper surface of the housing; and multiple switches fixedly installed on the outer wall of the housing; a movable mechanism connected to the device base and located inside the housing, with the top cover located above the movable mechanism. The large sample mixing and reduction device for coal quality analysis provided by this utility model is convenient to use, provides accurate reduction, ensures the representativeness of the samples required for analysis, reduces the workload of workers, and improves analysis efficiency.

[0004] As can be seen from the above-disclosed technical content, as existing technology, the utility model with announcement number CN216484259U uses a built-in conical connecting column to allow the naturally falling coal sample to fall evenly into the receiving box to reduce the material. However, when using this equipment, manual reduction is still required three times, which is not convenient to use and still requires a lot of manual intervention. At the same time, when manually pouring the material, it is not easy to control the consistency of pouring, which makes the sample not uniform enough and makes it difficult to ensure that the reduced sample has statistical consistency with the original coal sample in terms of particle size, moisture, ash content and other characteristics. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a sample combining and reducing device suitable for automated coal sample processing lines. It can integrate the coal sample combining and reducing processes into one, enabling fully automated processing and effectively ensuring statistical consistency of coal samples while eliminating losses during manual handling.

[0006] To achieve the above objectives, this utility model is applicable to a sample mixing and reduction device for an automated coal sample processing line. It includes a sample mixing device, a washing brush, a sample mixing hopper, a sample barrel weighing device, and a support. A sample feeding conveyor is fixedly installed on the upper part of the support. The sample mixing device is installed on the upper front section of the sample feeding conveyor. A scraper reducer is fixedly installed on the upper side of the middle section of the sample feeding conveyor. A sample discharge port is opened on the lower rear side of the sample feeding conveyor. A scraper reducer discharge port and a second scraper reducer discharge port are provided on both sides of the scraper reducer. The second scraper reducer discharge port is connected to... At the rear end of the material flow shaping conveyor, a temporary sample conveyor and a sample receiving conveyor are respectively installed on both sides of the scraper divider and the material flow shaping conveyor. The scraper divider discharge port of the scraper divider is aligned with the temporary sample bucket on the temporary sample conveyor. A reciprocating divider is fixedly installed at the front end of the material flow shaping conveyor. A sample bucket weighing device is installed below the reciprocating divider. The material flow shaping conveyor, the temporary sample conveyor, and the sample receiving conveyor are fixedly installed on the bracket. The sample bucket power supply barcode reader equipped on the sample receiving conveyor is installed on the sample can lid opener. A can lid hanging plate is set above the sample can lid opener.

[0007] In addition, the sample combining and reducing device for automated coal sample processing lines proposed in the above embodiments of this utility model may also have the following additional technical features:

[0008] As a further improvement of this utility model, the sample feeding conveyor includes a feeder belt drive motor, a feeder belt, a feeder waste sample discharge port, a belt tensioner, and a feeder gate mechanism. The sample feeding conveyor has a built-in feeder belt, and the feeder belt drive motor drives the feeder belt through a reducer. The feeder waste sample discharge port is located below the rear end of the feeder belt. The feeder belt is equipped with a belt tensioner. A rectangular through hole is opened on the surface of the sample feeding conveyor behind the sample mixing device to install the feeder gate mechanism.

[0009] As a further improvement of this utility model, the scraper divider includes a divider cutter, a scraper divider discharge port and a second scraper divider discharge port. The scraper divider has a built-in divider cutter driven by a motor. The lower end of the divider cutter is arc-shaped and matches the arc of the feeder belt. An adjustable height baffle is installed at the lower part of the divider cutter.

[0010] As a further improvement of this utility model, the material flow shaping conveyor includes a shaping conveyor shaping plate, a shaping conveyor gate, a shaping conveyor feed hopper, a shaping conveyor belt, and an iron remover. The shaping conveyor belt is installed inside the material flow shaping conveyor via a bracket. Two parallel shaping plates are arranged on the upper belt of the shaping conveyor belt along the belt running direction. A rectangular through hole is opened on the upper part of the material flow shaping conveyor shell to install the lifting rudder shaping conveyor gate. The scraper divider discharge port is connected to the shaping conveyor feed hopper at the rear of the material flow shaping conveyor. An iron remover is set at the front of the material flow shaping conveyor. The front discharge port of the material flow shaping conveyor is aligned with the reciprocating divider.

[0011] As a further improvement of this utility model, the reciprocating divider includes a transmission chain ratchet, a transmission chain, a cutting bucket, a left dividing feed port, a middle dividing feed port, and a right dividing feed port. Two transmission chains are installed below the upper feed port of the reciprocating divider via the transmission chain ratchet. The cutting bucket is fixedly installed on the two transmission chains. The left dividing feed port, the middle dividing feed port, and the right dividing feed port are sequentially installed at the lower part of the reciprocating divider. Pneumatic vibrators are respectively installed on the outside of the left dividing feed port, the middle dividing feed port, and the right dividing feed port. A motor fixedly installed on the outside of the reciprocating divider drives the transmission chain ratchet through a reducer.

[0012] As a further improvement of this utility model, the sample mixing device includes a washing bucket brush, a sample mixing hopper, and a stirring arm drive. The washing bucket brush driven by a motor is mounted on the top of the sample mixing hopper via a bracket, and the stirring arm drive drives the stirring arm inside the sample mixing hopper to rotate.

[0013] By means of the above solution, this utility model has at least the following advantages: Compared with conventional sample mixing and reduction devices, by integrating the sample mixing device, scraper reducer, temporary sample conveyor and reciprocating reducer together through the sample feeding conveyor and material flow shaping conveyor, and in conjunction with the temporary sample conveyor and sample receiving conveyor, the coal sample mixing and reduction process can be integrated together, which can realize the fully automatic processing, realize 24-hour continuous sample preparation, effectively ensure the statistical consistency of coal samples, and eliminate the loss during manual handling. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a sample combining and reducing device suitable for automated coal sample processing lines.

[0015] Figure 2 This is a 3D view of the sample mixing and homogenizing device, scraper divider, and sample feeding conveyor of the sample mixing and reducing device applicable to the automated coal sample processing line.

[0016] Figure 3This is a structural diagram of a sample feeding conveyor suitable for sample combining and reducing devices in automated coal sample processing lines;

[0017] Figure 4 This is a structural diagram of a scraper divider for a sample combining and reducing device suitable for automated coal sample processing lines.

[0018] Figure 5 This is a structural diagram of a material flow shaping conveyor and a reciprocating divider suitable for a coal sample combining and reducing device in an automated coal sample processing line.

[0019] Figure 6 This is a structural diagram of a reciprocating divider suitable for a sample combining and dividing device in an automated coal sample processing line.

[0020] Figure 7 This is a 3D diagram of a temporary sample conveyor for a sample combining and reducing device suitable for automated coal sample processing lines.

[0021] Figure 8 This is a 3D diagram of a sample feeding conveyor for a sample combining and reducing device suitable for automated coal sample processing lines.

[0022] In the diagram: 1. Sample mixing device; 1-1. Washing bucket brush; 1-2. Sample mixing hopper; 1-3. Stirring arm drive motor; 2. Scraper divider; 2-1. Divider cutter; 2-2. Scraper divider discharge port; 2-3. Scraper divider discharge port two; 3. Sample feeding conveyor; 3-1. Feeder belt drive motor; 3-2. Feeder belt; 3-3. Feeder waste sample discharge port; 3-4. Belt tensioner; 3-5. Feeder gate mechanism; 4. Sample bucket power supply barcode reader; 5. Material flow shaping conveyor; 5-1. Shaping plate of shaping conveyor; 5-2. 5-3. Shaping conveyor gate, 5-4. Shaping conveyor feed hopper, 5-5. Shaping conveyor belt, 5-6. Iron remover, 6. Temporary sample conveyor, 6-1. Mountain-shaped temporary sample lifting frame, 7. Sample inlet conveyor, 7-1. Sample container lid opener, 7-2. Photoelectric sensor, 7-3. Bucket lid hanging plate, 8. Reciprocating divider, 8-1. Drive chain ratchet, 8-2. Drive chain, 8-3. Cutting bucket, 8-4. Left divider discharge port, 8-5. Middle divider discharge port, 8-6. Right divider discharge port, 9. Sample bucket weighing device, 10. Support. Detailed Implementation

[0023] The following description, in conjunction with the accompanying drawings, describes the sample combining and reducing device of this utility model, which is suitable for automated coal sample processing lines.

[0024] In Embodiment 1 of this application, as Figures 1 to 4As shown, this sample combining and reducing device (hereinafter referred to as "the present invention") applicable to an automated coal sample processing line includes a sample mixing device 1, a washing bucket brush 1-1, a sample mixing hopper 1-2, a stirring arm drive motor 1-3, a scraper reducing device 2, a reducing cutter 2-1, a scraper reducing device discharge port 2-2, a scraper reducing device discharge port 2-3, a sample feeding conveyor 3, a feeder belt drive motor 3-1, a feeder belt 3-2, a feeder waste sample discharge port 3-3, a belt tensioner 3-4, a feeder gate mechanism 3-5, a sample bucket power supply barcode reader 4, and a material flow shaping conveyor. 5. Shaping conveyor shaping plate 5-1, shaping conveyor gate 5-2, shaping conveyor feed hopper 5-3, shaping conveyor belt 5-4, iron remover 5-5, temporary sample conveyor 6, mountain-shaped temporary sample lifting frame 6-1, sample receiving conveyor 7, sample container opener 7-1, photoelectric sensor 7-2, reciprocating divider 8, drive chain ratchet 8-1, drive chain 8-2, cutting hopper 8-3, left divider discharge port 8-4, middle divider discharge port 8-5, right divider discharge port 8-6, sample barrel weighing device 9, support 10, the upper part of the support 10 A fixed sample feeding conveyor 3 is installed. A sample mixing device 1 is installed on the upper front section of the sample feeding conveyor 3. A scraper divider 2 is fixedly installed on the upper middle side of the sample feeding conveyor 3. A feeder waste discharge port 3-3 is opened on the lower rear side of the sample feeding conveyor 3. Scraper divider discharge ports 2-2 and 2-3 are set on both sides of the scraper divider 2. The scraper divider discharge port 2-3 of the scraper divider 2 is connected to the rear end of the material flow shaping conveyor 5. A temporary sample conveyor 6 and a sample receiving conveyor 7 are respectively set on both sides of the scraper divider 2 and the material flow shaping conveyor 5. The scraper reducing port 2-2 of the divider 2 is aligned with the temporary sample bucket on the temporary sample conveyor 6; the reciprocating reducing device 8 is fixedly installed at the front end of the material flow shaping conveyor 5, and the sample bucket weighing device 9 is installed below the reciprocating reducing device 8; the material flow shaping conveyor 5, the temporary sample conveyor 6 and the sample receiving conveyor 7 are respectively fixedly installed on the bracket 10; the sample bucket power supply barcode reader 4 equipped on the sample receiving conveyor 7 is installed on the sample can lid opener 7-1, and a can lid hanging plate 7-3 is set above the sample can lid opener 7-1, which can directly read the barcode on the sample can, which is convenient for the background to record data. The scraper divider 2 includes a divider cutter 2-1, a scraper divider discharge port 2-2, and a scraper divider discharge port 2-3. The scraper divider 2 has a built-in divider cutter 2-1 driven by a motor. The lower end of the divider cutter 2-1 is arc-shaped and matches the arc of the feeder belt 3-2. An adjustable height baffle is installed at the lower part of the divider cutter 2-1.The sample feeding conveyor 3 includes a feeder belt drive motor 3-1, a belt tensioner 3-4, and a feeder gate mechanism 3-5. The sample feeding conveyor 3 has a built-in feeder belt 3-2. The feeder belt drive motor 3-1 drives the feeder belt 3-2 through a reducer. The feeder waste discharge port 3-3 is located below the rear end of the feeder belt 3-2. The feeder belt 3-2 is equipped with a belt tensioner 3-4. The feeder gate mechanism 3-5 is installed on the surface of the sample feeding conveyor 3 behind the sample mixing device 1 through a rectangular through hole.

[0025] A large sample mixing and reducing device for coal quality testing (hereinafter referred to as "the patent") with utility model announcement number CN216484259U uses a built-in conical connecting column to allow naturally falling coal samples to fall evenly into the receiving box to reduce the material. However, this device still requires manual reduction three times, which is inconvenient and requires a lot of manual intervention. At the same time, it is not easy to control the consistency of pouring when manually pouring materials, resulting in uneven sample mixing. It is difficult to ensure that the reduced sample has statistical consistency with the original coal sample in terms of particle size, moisture, ash content, etc. The present invention integrates the sample mixing device 1, scraper reducing device 2, temporary sample conveyor 6, and reciprocating reducing device 8 into one by means of a sample feeding conveyor 3 and a material flow shaping conveyor 5. With the help of the temporary sample conveyor 6 and the sample receiving conveyor 7, the coal sample mixing and reducing process can be integrated into one, realizing fully automated processing, effectively ensuring the statistical consistency of coal samples, and eliminating losses during manual handling.

[0026] This second embodiment is basically the same in structure as the first embodiment, the difference being that, as Figure 5 and Figure 6As shown, the material flow shaping conveyor 5 includes shaping conveyor plates 5-1, shaping conveyor belts 5-4, and iron removers 5-5. The shaping conveyor belts 5-4 are installed inside the material flow shaping conveyor 5 via brackets. Two parallel shaping conveyor plates 5-1 are arranged on the upper belt of the shaping conveyor belts 5-4 along the belt running direction. A rectangular through hole is opened on the upper part of the material flow shaping conveyor 5 to install a lifting rudder shaping conveyor gate 5-2. The scraper divider discharge port 2-3 is connected to the shaping conveyor feed hopper 5-3 at the rear of the material flow shaping conveyor 5. An iron remover 5-5 is set at the front of the material flow shaping conveyor 5. The discharge port at the front of the material flow shaping conveyor 5 is aligned with the reciprocating divider 8. The reciprocating divider 8 includes a drive chain ratchet 8-1, a drive chain 8-2, and a right-side divider discharge port 8-6. Two drive chains 8-2 are installed below the upper feed port of the reciprocating divider 8 via the drive chain ratchet 8-1. Cutting buckets 8-3 are fixedly installed on the two drive chains 8-2. The lower part of the reciprocating divider 8 is sequentially equipped with a left-side divider discharge port 8-4, a middle divider discharge port 8-5, and a right-side divider discharge port 8-6. Pneumatic vibrators are respectively installed on the outside of the left-side divider discharge port 8-4, the middle divider discharge port 8-5, and the right-side divider discharge port 8-6. A motor fixedly installed on the outside of the reciprocating divider 8 drives the drive chain ratchet 8-1 through a reducer.

[0027] To further optimize the working efficiency of this application, ensure uniform sample mixing, and clean the sample container, the sample mixing device 1 includes a washing brush 1-1, a sample mixing hopper 1-2, and a stirring arm drive 1-3. The washing brush 1-1 driven by a motor is mounted on the sample mixing hopper 1-2 via a bracket, and the stirring arm drive 1-3 drives the stirring arm inside the sample mixing hopper 1-2 to rotate.

[0028] When this utility model is used, its specific operation is as follows:

[0029] When using, such as Figures 1 to 8As shown, the sample feed conveyor 7's conveyor roller motor, driven by gears, transports the sample bucket to the robotic arm's retrieval position. After passing through the photoelectric sensor 7-2, the sample bucket enters directly below the sample container opener 7-1. The sample container opener 7-1 is cylinder-driven for lifting and lowering. The power supply device descends with the sample container opener 7-1. After the power supply device supplies power to the sample bucket lid, the electronic lock in the sample bucket lid opens. At this time, the sample bucket lid unlocks, the sample container opener 7-1 retracts, the robotic arm grabs the sample bucket, lifts it, and sends it to the top lid hanging plate 7-3. Then it descends, leaving the lid on the lid hanging plate 7-3. Then the robotic arm lifts the bucket to the sample mixing device 1, and then to the sample mixing hopper 1-2 of the sample mixing device 1, pouring the coal sample into the sample mixing hopper 1-2. The stirring arm drive motor 1-3 drives the stirring arm in the sample mixing hopper (1-2) to stir and mix the sample. At the same time, the material falls onto the feeder belt 3-2 of the sample feeding conveyor. The feeder belt drive motor 3-1 drives the feeder belt 3-2 to rotate. When the material passes through the feeder gate mechanism 3-5, it is scraped flat, allowing the material to pass evenly through the scraper divider 2. The motor of the scraper divider 2 drives the divider cutter 2-1 to rotate one revolution clockwise on the feeder belt 3-2, and then one revolution counterclockwise, and so on. Previously, the elevator of the temporary sample conveyor 6 passed the mountain-shaped temporary sample lifting frame 6-1 through the rotating roller, lifted the material bucket, and connected it with the scraper divider discharge port 2-2 of the scraper divider 2. When the divider cutter 2-1 swung back and forth, the material was pushed down into the material bucket and transported to the left side by the temporary sample conveyor 6. After the weighing mechanism at the bottom of the temporary sample conveyor 6 weighed the temporary sample, the robot grabbed the temporary sample and placed it on the temporary storage shelf for inspection. Another part fell through the scraper divider discharge port 2-3 into the shaping conveyor feed hopper 5-3 of the material flow shaping conveyor 5. The remaining part was discharged from the equipment through the feeder discard discharge port 3-3 and transported to the discard point by the conveyor.

[0030] After the coal sample enters the material flow shaping conveyor 5, the shaping conveyor belt 5-4 inside the material flow shaping conveyor 5 transports the coal sample to the reciprocating divider 8. The shaping plate 5-1 and the shaping gate 5-2 on the shaping conveyor belt 5-4 shape the coal sample, so that it falls evenly and stably into the reciprocating divider 8. The iron remover 5-5 ensures that no iron filings enter the reciprocating divider 8. When the coal sample enters the reciprocating divider 8, the external motor of the reciprocating divider 8 drives the transmission chain ratchet 8-1 to drive the transmission chain 8-2 to rotate. The cutting bucket 8-3, which is fixedly installed on the transmission chain 8-2, continuously transports the material to the left dividing discharge port 8-4 and the right dividing discharge port 8-6 respectively. The material that does not fall into the cutting bucket 8-3 falls into the middle dividing discharge port 8-5 and enters its respective coal sample bucket. After the sample bucket weighing device 9 weighs it, the mechanical handpiece sends the sample bucket to the next process. The reciprocating divider 8 has three sample bottles at the bottom. The middle one is a common sample, and the two side ones are full water samples for inspection. The common sample is picked up by the robot and sent to the front divider module, while the samples for inspection are picked up by the robot and placed on the temporary storage shelf for inspection.

[0031] In summary, the sample combining and reducing device of this utility model, applicable to automated coal sample processing lines, integrates the sample mixing device 1, scraper reducing device 2, temporary sample conveyor 6, and reciprocating reducing device 8 together through the sample feeding conveyor 3 and the material flow shaping conveyor 5. In conjunction with the temporary sample conveyor 6 and the sample receiving conveyor 7, the coal sample combining and reducing process can be integrated into one, realizing fully automated processing, 24-hour continuous sample preparation, effectively ensuring statistical consistency of coal samples, and eliminating losses during manual handling.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A sample mixing and reducing device suitable for automated coal sample processing lines, comprising a sample mixing device (1), a reciprocating reducing device (8), and a support (10), characterized in that, The upper part of the bracket (10) is fixedly installed with a sample feeding conveyor (3). The upper part of the front end of the sample feeding conveyor (3) is installed with a sample mixing device (1). The upper side of the middle part of the sample feeding conveyor (3) is fixedly installed with a scraper divider (2). The lower side of the rear part of the sample feeding conveyor (3) is opened with a feeder waste discharge port (3-3). The scraper divider (2) is provided with scraper divider discharge port (2-2) and scraper divider discharge port two (2-3) on both sides. The scraper divider discharge port two (2-3) of the scraper divider (2) is connected to the rear end of the material flow shaping conveyor (5). The scraper divider (2) and the material flow shaping conveyor (5) are respectively provided with a temporary sample conveyor (6) and a sample receiving conveyor on both sides. (7) The scraper reducer discharge port (2-2) of the scraper reducer (2) is aligned with the temporary sample bucket on the temporary sample conveyor (6); the reciprocating reducer (8) is fixedly installed at the front end of the material flow shaping conveyor (5), and the sample bucket weighing device (9) is installed below the reciprocating reducer (8). The material flow shaping conveyor (5), the temporary sample conveyor (6) and the sample material conveyor (7) are fixedly installed on the bracket (10); the sample material conveyor (7) is equipped with a sample bucket power supply barcode reader (4); the sample bucket power supply barcode reader (4) equipped on the sample material conveyor (7) is installed on the sample tank opener (7-1), and the tank lid hanging plate (7-3) is set above the sample tank opener (7-1).

2. The sample mixing and dividing device suitable for the automatic coal sample processing line according to claim 1, characterized in that, The sample feeding conveyor (3) includes a feeder belt drive motor (3-1) and a feeder gate mechanism (3-5). The sample feeding conveyor (3) has a built-in feeder belt (3-2). The feeder belt drive motor (3-1) drives the feeder belt (3-2) through a reducer. The feeder discharge port (3-3) is located below the rear end of the feeder belt (3-2). The feeder belt (3-2) is equipped with a belt tensioner (3-4). The sample feeding conveyor (3) behind the sample mixing device (1) has a rectangular through hole for installing the feeder gate mechanism (3-5).

3. The sample mixing and dividing device suitable for the automatic coal sample processing line according to claim 2, characterized in that, The scraper divider (2) includes a divider cutter (2-1), a scraper divider discharge port (2-2), and a scraper divider discharge port 2 (2-3). The scraper divider (2) has a built-in divider cutter (2-1) driven by a motor. The lower end of the divider cutter (2-1) is arc-shaped and matches the arc of the feeder belt (3-2). An adjustable height baffle is installed on the lower part of the divider cutter (2-1).

4. The coal sample preparation device suitable for use in an automated coal sample processing line according to claim 1, wherein, The material flow shaping conveyor (5) includes a shaping plate (5-1), a shaping conveyor belt (5-4) is installed inside the material flow shaping conveyor (5) by a bracket, two parallel shaping plates (5-1) are set on the upper belt of the shaping conveyor belt (5-4) along the belt running direction, a rectangular through hole is opened on the upper part of the material flow shaping conveyor (5) to install a lifting rudder shaping conveyor gate (5-2), the scraper divider discharge port two (2-3) is connected to the shaping conveyor feed hopper (5-3) at the rear of the material flow shaping conveyor (5), an iron remover (5-5) is set at the front of the material flow shaping conveyor (5), and the discharge port at the front of the material flow shaping conveyor (5) is aligned with the reciprocating divider (8).

5. The coal sample preparation device suitable for use in an automated coal sample processing line according to claim 4, wherein, The reciprocating divider (8) includes a transmission chain ratchet (8-1) and a right-side divider feed port (8-6). Two transmission chains (8-2) are installed below the upper feed port of the reciprocating divider (8) via the transmission chain ratchet (8-1). Cutting buckets (8-3) are fixedly installed on the two transmission chains (8-2). The lower part of the reciprocating divider (8) is sequentially equipped with a left-side divider feed port (8-4), a middle divider feed port (8-5), and a right-side divider feed port (8-6). Pneumatic vibrators are installed on the outside of the left-side divider feed port (8-4), the middle divider feed port (8-5), and the right-side divider feed port (8-6). A motor fixedly installed on the outside of the reciprocating divider (8) drives the transmission chain ratchet (8-1) via a reducer.

6. The coal sample preparation device suitable for use in an automated coal sample processing line according to claim 1, wherein, The sample mixing device (1) includes a washing bucket brush (1-1), a sample mixing hopper (1-2), and a stirring arm drive (1-3). The washing bucket brush (1-1) driven by a motor is mounted on the sample mixing hopper (1-2) above the sample mixing hopper (1-2) via a bracket. The stirring arm drive (1-3) drives the stirring arm inside the sample mixing hopper (1-2) to rotate.

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