Coal sampling device

Abstract

The present application relates to the technical field of coal sampling equipment, and provides a coal sampling device, which comprises a support, a sample collecting cylinder arranged on the support, and a sampling mechanism arranged on the support and horizontally movable, wherein the sampling mechanism comprises a sampling cylinder arranged movably up and down, the sampling cylinder comprises a shell, an auger is arranged in the shell, a material guiding cylinder is arranged at the upper end of the shell, the material guiding cylinder is in communication with the interior of the shell, the opening of the material guiding cylinder is arranged obliquely downward, and a cover is hingedly arranged at the opening of the material guiding cylinder. Through the above technical scheme, the problem of energy waste caused by the need for a special power mechanism to open the cover for unloading in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of loose coal sampling equipment, and in particular to a loose coal sampling device. Background Art

[0002] Existing sampling stations use a lifting mechanism to move a sampler to a sampling point. The sampler then drills down to a certain depth to collect the sample. The sample flows out of the sampler's outlet and falls into a hopper. The sampler is then moved to the next collection point for collection. The sample in the hopper flows through a pipe into a bulk coal sample collection device. After the existing bulk coal sampler lifts the sample, a special power mechanism is required to open the cover for unloading, resulting in energy waste. Summary of the Invention

[0003] The present invention provides a loose coal sampling device, which solves the problem in the related art that a special power mechanism is required to open a cover for unloading, resulting in energy waste.

[0004] The technical solutions of the present invention are as follows:

[0005] It includes a bracket, a sample collecting cylinder is provided on the bracket, a sampling mechanism is also provided on the bracket for horizontal movement, the sampling mechanism includes a sampling cylinder that is arranged to move up and down, the sampling cylinder includes a shell, an auger is provided in the shell, a material guide cylinder is provided at the upper end of the shell, the material guide cylinder is connected to the inside of the shell, the opening of the material guide cylinder is arranged to be inclined downward, and a sealing cover is hingedly provided at the opening of the material guide cylinder.

[0006] A feeding plate is slidably provided on the inner bottom wall of the free end of the guide barrel, and the sealing cover comprises a first plate and a second plate connected to each other, wherein the first plate and the second plate are arranged at an obtuse angle, and the first plate is pushed into the feeding plate and seals the opening of the guide barrel after rotating around the hinge axis.

[0007] A sealing plate is provided at the entrance of the sample collecting cylinder. The sealing plate is hingedly provided on the inner wall of the sample collecting cylinder. A shifting rod is provided on the outer wall of the sample collecting cylinder above the sealing plate.

[0008] A crushing device is provided in the sample collecting tube. The crushing device comprises a first rotating shaft. A plurality of crushing pieces parallel to each other are fixedly provided on the first rotating shaft. A plurality of tips are provided on the crushing pieces along the circumference.

[0009] A sealing plate is movably arranged below the crushing device, and a shrinking device is arranged below the sealing plate. The shrinking device includes a first channel and a second channel. The first channel and the second channel are separated by a vertically arranged partition, and a material dividing plate is swingably arranged above the partition.

[0010] The second rotating shaft, whose axis is coplanar with the partition plate, is arranged in the sample collecting cylinder, the distributing plate is fixedly arranged on the second rotating shaft, and the second rotating shaft is connected with the air cylinder through the connecting piece after extending out of the sample collecting cylinder.

[0011] The top is arranged above the support in a telescopic mode.

[0012] The auger comprises an upper auger section and a lower auger section, the pitch of the upper auger section is smaller than the pitch of the lower auger section, and the lower auger section is a double helix structure.

[0013] The sample collecting cylinder is connected with an encapsulating device, the encapsulating device comprises a box body, one side wall of the box body is communicated with the sample collecting cylinder, the box body is provided with a hinge-arranged upper cover and a side door, a fixed plate is horizontally arranged in the box body, a through hole for placing a plurality of sample barrels is arranged on the fixed plate, the diameter of the through hole is greater than the outer diameter of the outer edge of the sample barrel, a limiting seat is arranged below the through hole, a limiting frame is slidably arranged on the fixed plate, the limiting frame is located outside the through hole, and one sample barrel falls into the limiting seat after the limiting frame slides.

[0014] The working principle and beneficial effects of the present application are as follows:

[0015] In the present application, the hinge shaft and the torsional spring are arranged in the middle of the cover, the cover is arranged on the upper wall of the opening of the material guiding cylinder in a hinge mode, the cover covers the opening of the free end of the material guiding cylinder after being rotated, the cover realizes automatic collection of the sample by using the simplest mechanical mechanism, the reliability of the system is improved, the use of the motor is reduced, the equipment is lightened, and the material cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 It is a schematic diagram of the sampling cylinder structure of the present application;

[0019] Figure 3 It is a schematic diagram of the opening structure of the sample collecting cylinder of the present application;

[0020] Figure 4 It is a schematic diagram of the feeding plate structure of the free end of the material guiding cylinder of the present application;

[0021] Figure 5 It is a schematic diagram of the crushing mechanism structure of the present application;

[0022] Figure 6 It is a schematic diagram of the external structure of the division mechanism of the present application;

[0023] Figure 7 Schematic diagram of the internal structure of the shrinking mechanism of the present invention;

[0024] Figure 8 This is a schematic diagram of the auger structure of the present invention;

[0025] Figure 9 Schematic diagram of the internal structure of the packaging mechanism of the present invention (omitting the upper cover and side door);

[0026] Figure 10 This is a schematic structural diagram of the sample tube of the present invention;

[0027] Figure 11 This is a schematic diagram of the limit frame structure of the present invention;

[0028] In the figure: 1- bracket, 2- sample collecting tube, 3- sampling tube, 4- shell, 5- auger, 6- guide tube, 7- cover, 8- feeding plate, 9- first plate, 10- second plate, 11- sealing plate, 12- lever, 13- first rotating shaft, 14- crushing piece, 15- sealing plate, 16- first channel, 17- second channel, 18- material dividing plate, 19- second rotating shaft, 20- connecting piece, 21- ceiling, 22- box body, 23- fixing plate, 24- limiting seat, 25- limiting frame, 26- first sliding frame, 27- connecting frame, 28- first flange, 29- second flange, 30- sliding shaft, 31- sleeve. DETAILED DESCRIPTION

[0029] The following will be combined with 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 any creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1-11 As shown, the present invention proposes a loose coal sampling device, including a bracket 1, a sample collecting cylinder 2 is provided on the bracket 1, and a sampling mechanism is also provided on the bracket 1 for horizontal movement. The sampling mechanism includes a sampling cylinder 3 that is arranged to move up and down. The sampling cylinder 3 includes a shell 4, an auger 5 is provided in the shell 4, and a material guide cylinder 6 is provided at the upper end of the shell 4. The material guide cylinder 6 is connected to the inside of the shell 4, the opening of the material guide cylinder 6 is arranged to be inclined downward, and a cover 7 is hingedly provided at the opening of the material guide cylinder 6.

[0031] In this embodiment, the sampling mechanism moves to the sampling point, drills 1.3 meters downward, and removes approximately 11.7 kilograms of coal, of which 5 kilograms are collected for sampling. The remaining loose coal is returned to the transport vehicle and then moved to the next collection point. A hinged shaft and torsion spring are located in the middle of the cover 7. This structure hinges the cover 7 to the upper wall of the opening of the guide barrel 6. When the cover 7 rotates, it covers the free end opening of the guide barrel 6. This simple mechanical mechanism automatically collects samples, improving system reliability, reducing motor usage, and making the equipment lighter while saving material costs.

[0032] Furthermore, a feeding plate 8 is slidably provided on the inner bottom wall of the free end of the guide barrel 6. The cover 7 includes a first plate 9 and a second plate 10 connected to each other. The first plate 9 and the second plate 10 are arranged at an obtuse angle. After the first plate 9 rotates around the hinge axis, it is pushed into the feeding plate 8 and seals the opening of the guide barrel 6.

[0033] A sealing plate 11 is provided at the entrance of the sample collecting cylinder 2 . The sealing plate 11 is hingedly provided on the inner wall of the sample collecting cylinder 2 . A shifting rod 12 is provided on the outer wall of the sample collecting cylinder 2 above the sealing plate 11 .

[0034] In this embodiment, the setting of the sealing plate 11 can ensure that the coal sampling process is closed and avoid contamination of the sample by the surrounding environment. The first plate 9 and the second plate 10 form an obtuse angle, and the hinge shaft and the torsion spring are set at the connection between the first plate 9 and the second plate 10. A slide rail is set inside the opening of the guide barrel 6, and a feed plate 8 is slidingly set on the slide rail. The feed plate 8 is arc-shaped and is located at the bottom end of the guide barrel 6. Under normal conditions, the setting of the torsion spring will cause the first plate 9 to press the outlet of the guide barrel 6, and the feed plate 8 will be in a state of contraction inside the guide barrel 6. When unloading is required, the sampling barrel 3 is moved up and down to make the lever 12 above the sample collecting barrel 2 abut against the second plate 10 and Make the first plate 9 and the second plate 10 rotate around the hinge axis, at this time the outlet of the guide cylinder 6 is opened, the first plate 9 rotates a certain angle and lifts up the sealing plate 11, the outlet of the sample collecting cylinder 2 is opened, and at the same time the feeding plate 8 slides downward under the action of gravity and is inserted into the sample collecting cylinder 2, the coal sample is transported outward along the feeding plate 8 for unloading, and after the unloading is completed, the sampling cylinder 3 moves in the opposite direction, the lever 12 no longer supports the second plate 10, and the sealing cover 7 is reset under the action of the torsion spring restoring force, pushing the feeding plate 8 to retract, and at the same time the first plate 9 no longer supports the sealing plate 11, and the inlet of the sample collecting cylinder 2 is closed.

[0035] Furthermore, a crushing device is provided in the sample collecting tube 2 , and the crushing device includes a first rotating shaft 13 , on which a plurality of crushing pieces 14 parallel to each other are fixedly provided, and the crushing pieces 14 are provided with a plurality of tips along the circumferential direction.

[0036] Furthermore, a sealing plate 15 is movably arranged below the crushing device, and a shrinking device is arranged below the sealing plate 15. The shrinking device includes a first channel 16 and a second channel 17. The first channel 16 and the second channel 17 are separated by a vertically arranged partition, and a material dividing plate 18 is swingably arranged above the partition.

[0037] In this embodiment, the sealing plate 15 controls the timing of material leakage. After the sealing plate 15 moves, the drop opening is opened, and the loose coal falls and is controlled by the swinging material distribution plate 18 to fall into the first channel 16 or the second channel 17.

[0038] Furthermore, a second rotating shaft 19 is provided in the sample collecting tube 2, and the axis thereof is coplanar with the plane where the partition is located. The material dividing plate 18 is fixedly provided on the second rotating shaft 19. The second rotating shaft 19 extends out of the sample collecting tube 2 and is connected to the cylinder through a connecting piece 20, and the connecting piece 20 is bent.

[0039] In this embodiment, a cylinder is provided outside the sample collecting tube 2, and the linear drive of the cylinder causes the second rotating shaft 19 to swing at a certain angle through the bent connecting plate, thereby separating the materials.

[0040] Furthermore, a ceiling 21 is telescopically provided above the bracket 1 .

[0041] In this embodiment, the sampling mechanism requires a vertically positioned rack for up and down movement, resulting in a large telescopic range. If designed as a fixed ceiling, the height would need to be very high, resulting in significant overall wind resistance, necessitating a strengthened main structure and pre-buried foundations. Furthermore, the ceiling 21 is too high, providing minimal protection from wind and rain. A retractable ceiling 21 is used at the top of the sampling mechanism to reduce its overall height. The use of dual indoor control in both the control room and the sample collection room allows for adaptation to a variety of complex weather conditions and environments.

[0042] Furthermore, the auger 5 includes an upper auger section and a lower auger section. The pitch of the upper auger section is smaller than the pitch of the lower auger section, and the lower auger section has a double helix structure.

[0043] In this embodiment, the double-helix and large-pitch design at the front end increases the sample transmission speed and reduces the sampling time; the single-helix design at the rear end reduces the sample transmission resistance and improves efficiency.

[0044] Furthermore, a packaging device is connected to the end of the sample collecting tube 2, and the packaging device includes a box body 22. A side wall of the box body 22 is connected to the sample collecting tube 2. The box body 22 has a hinged upper cover and a side door. A fixed plate 23 is horizontally arranged in the box body 22. The fixed plate 23 is provided with a through hole for placing multiple stacked sample barrels. The diameter of the through hole is larger than the outer diameter of the outer edge of the sample barrel. A limiting seat 24 is provided below the through hole. A limiting frame 25 is slidingly provided on the fixed plate 23. The limiting frame 25 is located outside the through hole. After the limiting frame 25 slides, a sample barrel falls into the limiting seat 24.

[0045] In this embodiment, the packaging device is used to collect a sample after reduction and use it for subsequent testing. The box body 22 forms a closed space to avoid contamination from the external environment. The end of the sample collecting tube 2 is connected to one side of the box body 22. A sample barrel is placed in the box body 22. The upper cover of the box body 22 is opened, and multiple stacked sample barrels are placed in the through hole. Part of the sample barrel is located above the fixed plate 23, and part is located below the fixed plate 23. Through the action of the fixed plate 23 and the limit frame 25, a sample barrel can be automatically placed below the end of the sample collecting tube 2 to receive the coal sample. Through this structure, the work of opening the box door in advance to place the sample barrel, then taking out the coal sample and placing a new sample barrel is saved, thereby improving efficiency.

[0046] Furthermore, the interior of the fixed plate 23 is a cavity, and the limit frame 25 is slidably arranged inside the fixed plate 23. The limit frame 25 includes two first sliding frames 26 arranged in parallel. One end of the two first sliding frames 26 is connected by a connecting frame 27. A first convex edge 28 is provided on the inner side of the end of the first sliding frame 26 away from the second sliding frame, and a second convex edge 29 is provided on the inner side of the end of the first sliding frame 26 close to the second sliding frame. The first convex edge 28 and the second convex edge 29 both extend along the length direction of the first sliding frame 26. The first sliding frame 26 is located below the second sliding frame in the vertical direction. The spacing between the two first convex edges 28 is equal to the spacing between the two second convex edges 29, and both are smaller than the outer diameter of the outer edge of the sample barrel.

[0047] A sliding shaft 30 is provided on the outer side of the second sliding frame, a sleeve 31 is provided at one end of the fixing plate 23 , and the sliding shaft 30 is slidably provided in the sleeve 31 .

[0048] In this embodiment, the limit frame 25 includes a first sliding frame 26, a connecting frame 27 and a first sliding frame 26 that slide in the cavity in the fixed plate 23 and are vertically connected in sequence. The two first sliding frames 26 are symmetrically provided with first protrusions 28 on opposite sides, and the first protrusion 28 is located at the free end of the first sliding frame 26, and the second protrusion 29 is located at the other end of the first sliding frame 26, and the vertical height is higher than the first protrusion 28. The two first protrusions 28 and the two second protrusions 29 can both clamp the outer edge of the sample barrel. When the limit frame 25 is horizontal During sliding, the sample barrel held by the first lip 28 moves away from the sample barrel, causing the outer edge of the sample barrel to enter the non-lipped position between the first lip 28 and the second lip 29. At the same time, the second lip 29 holds the outer edge of the second-to-last sample barrel. The spacing between the non-lipped positions is greater than the outer diameter of the sample barrel lip. Therefore, the lowest sample barrel falls, and the limit frame 25 holds the second-to-last sample barrel, achieving the goal of sliding and dropping one sample barrel at a time, and the sample barrel falls into the limit seat 24 below, preventing the sample barrel from tipping over. A pneumatic cylinder is provided as the driving mechanism. The cylinder is located on the box body, and a telescopic rod is connected to the end of the sliding shaft 30. The movement of the cylinder drives the limit frame 25 to move back and forth to discharge the sample barrel.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bulk coal sampling device, comprising a bracket (1), characterized in that: The bracket (1) is provided with a sample collecting cylinder (2), and the bracket (1) is also provided with a sampling mechanism that moves horizontally, the sampling mechanism includes a sampling cylinder (3) that moves up and down, the sampling cylinder (3) includes a shell (4), an auger (5) is provided in the shell (4), a material guide cylinder (6) is provided at the upper end of the shell (4), the material guide cylinder (6) is communicated with the interior of the shell (4), the opening of the material guide cylinder (6) is tilted downward, and a cover (7) is hingedly provided at the opening of the material guide cylinder (6); A feeding plate (8) is slidably provided on the inner bottom wall of the free end of the guide barrel (6), and the cover (7) comprises a first plate (9) and a second plate (10) connected to each other, wherein the first plate (9) and the second plate (10) are arranged at an obtuse angle, and the first plate (9) is rotated around the hinge axis and pushed into the feeding plate (8) to seal the opening of the guide barrel (6). A sealing plate (11) is provided at the entrance of the sample collecting cylinder (2), the sealing plate (11) is hingedly provided on the inner wall of the sample collecting cylinder (2), and a shifting rod (12) is provided on the outer wall of the sample collecting cylinder (2) above the sealing plate (11); The first plate (9) and the second plate (10) are at an obtuse angle, and a hinge shaft and a torsion spring are provided at the connection between the first plate (9) and the second plate (10). Under normal conditions, the torsion spring will cause the first plate (9) to press against the outlet of the guide barrel (6), and the feeding plate (8) will be in a state of being retracted inside the guide barrel (6). When unloading is required, the sampling barrel (3) is moved up and down so that the lever (12) above the sample collecting barrel (2) abuts against the second plate (10) and the first plate (9) and the second plate (10) rotate around the hinge shaft, and the guide barrel (6) is opened. ) outlet, the first plate (9) rotates a certain angle and lifts the sealing plate (11), the outlet of the sample collecting tube (2) is opened, and at the same time the feeding plate (8) slides downward under the action of gravity and is inserted into the sample collecting tube (2), the coal sample is transported outward along the feeding plate (8) to be unloaded, and after the unloading is completed, the sampling tube (3) moves in the opposite direction, the lever (12) no longer supports the second plate (10), the sealing cover (7) is reset under the action of the torsion spring restoring force, and the feeding plate (8) is pushed back, and at the same time the first plate (9) no longer supports the sealing plate (11), and the inlet of the sample collecting tube (2) is closed; A crushing device is provided in the sample collecting cylinder (2), and the crushing device comprises a first rotating shaft (13), a plurality of mutually parallel crushing pieces (14) are fixedly provided on the first rotating shaft (13), and a plurality of pointed ends are provided on the crushing pieces (14) along the circumference; A sealing plate (15) is movably provided below the crushing device, a dividing device is provided below the sealing plate (15), the dividing device comprises a first channel (16) and a second channel (17), the first channel (16) and the second channel (17) are separated by a vertically provided partition, and a dividing plate (18) is swingably provided above the partition; A second rotating shaft (19) is provided in the sample collecting cylinder (2), the axis of which is coplanar with the plane where the partition is located. The material dividing plate (18) is fixedly provided on the second rotating shaft (19). The second rotating shaft (19) extends out of the sample collecting cylinder (2) and is connected to the cylinder through a connecting piece (20). The connecting piece (20) is bent.

2. A bulk coal sampling device according to claim 1, characterized in that: A roof (21) is telescopically provided above the bracket (1).

3. The bulk coal sampling device according to claim 1, characterized in that: The auger (5) comprises an upper auger (5) section and a lower auger (5) section, the auger (5) pitch of the upper auger (5) section is smaller than the pitch of the lower auger (5) section, and the lower auger (5) section is a double helix structure.

4. The bulk coal sampling device according to claim 1, characterized in that: The end of the sample collecting tube (2) is connected to a packaging device, and the packaging device includes a box body (22), a side wall of the box body (22) is connected to the sample collecting tube (2), and the box body (22) has a hinged upper cover and a side door. A fixing plate (23) is horizontally arranged in the box body (22), and a through hole for placing a plurality of stacked sample barrels is provided on the fixing plate (23), and the diameter of the through hole is larger than the outer diameter of the outer edge of the sample barrel. A limiting seat (24) is provided below the through hole, and a limiting frame (25) is slidably provided on the fixing plate (23), and the limiting frame (25) is located outside the through hole. After the limiting frame (25) slides, a sample barrel falls into the limiting seat (24).

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