Coal bunker lump coal conveying device

Abstract

The invention relates to the technical field of material conveying, and particularly discloses a coal bunker lump coal conveying device which comprises a shell, an inclined discharging channel, a conveying device and a conveying device. A blockage clearing module is arranged in the discharging channel and comprises driving rods, a driving assembly and a blockage clearing assembly, and the driving rods, the driving assembly and the blockage clearing assembly are symmetrically arranged on the two opposite side walls of the discharging channel correspondingly. The device has the beneficial effects that every two adjacent sliding plates slide, blocked materials are divided into sections, then an air cylinder pushes a driving rod on the front side through a connecting plate to move in the axial direction of the driving rod, the front sliding plate and the rear sliding plate which correspond to each other are staggered, the front sliding plate and the rear sliding plate can rub the blocked materials on the inner side, and the blocked materials are separated from each other. And the materials can be effectively scattered through rubbing, so that the blocked materials can be discharged from the blanking channel after being rubbed to be scattered, the blocked parts are dredged, and normal blanking of the blanking channel is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of material transportation, and in particular to a lump coal transportation device in a coal bunker. Background Art

[0002] Lump coal refers to coal with a particle size larger than a certain size. While there's no strict, unified standard for its particle size range, it generally refers to coal with a particle size greater than 13mm or even larger, such as 25mm. There are two main ways to form and process lump coal: Lump coal forms naturally during the mining process, such as when room-and-pillar mining is used in thick coal seams, where large lumps of coal can be directly extracted. Lump coal also forms through screening and crushing. At coal washing plants, raw coal passes through screening equipment to select the part that meets the lump coal particle size requirements.

[0003] The Chinese patent with the authorization announcement number CN208648217U discloses a positive pressure pebble coal conveying system, which includes a pebble coal hopper, a silo pump for providing a positive pressure environment and carrying pebble coal, a coal storage silo for temporarily storing pebble coal, and a bulk machine for conveying pebble coal to loading and transporting equipment. The pebble coal processed by the pulverizer enters the silo pump through the pebble coal hopper. The positive pressure in the silo pump conveys the pebble coal to the coal storage silo through a connecting pipe. A discharge valve set at the bottom of the coal storage silo can control the discharge of pebble coal at any time without affecting the operation of the entire conveying system. Moreover, through the reasonable air distribution form in the silo pump, the conveying distance is long, and large particles of pebble coal can enter the connecting pipe in an orderly manner and be conveyed by rolling forward. Due to the high pressure of the compressed air source (0.6MPa), the pipeline conveying concentration is high, the speed is low, the wear on the pipeline is small, and the conveying efficiency is high.

[0004] Lump coal is affected by various factors such as humidity, particle size and quality, and is prone to attaching to the pipe wall and then agglomerating, which reduces the pipe's passing cross-section, increases the coal transportation resistance, and causes pipe blockage. However, when the pipe is blocked, it is not easy for workers to clean the blocked part, and the machine needs to be shut down for operation, which not only affects the normal operation of the equipment, but also greatly reduces work efficiency. Summary of the Invention

[0005] The present invention provides a coal bunker lump coal conveying device, which aims to solve the technical problem in the related art that lump coal is affected by various factors such as humidity, particle size and quality, and is easily attached to the pipe wall and then agglomerated, which reduces the passing cross-section of the pipeline, increases the coal conveying resistance, and causes the pipeline to be blocked. However, when the pipeline is blocked, it is not easy for workers to clean the blocked part and the machine needs to be shut down for operation, which not only affects the normal operation of the equipment, but also greatly reduces the work efficiency.

[0006] A coal bunker lump coal conveying device of the present invention comprises: a shell having an inclined blanking channel therein; a clearing module is provided in the blanking channel, the clearing module comprising a driving rod, a driving assembly and a clearing assembly symmetrically arranged on opposite side walls of the blanking channel; the driving rod is arranged along the length direction of the blanking channel, the axis of the driving rod is parallel to the length direction of the blanking channel, and one end of the driving rod is connected to the driving assembly, and the driving assembly is used to drive the driving rod to rotate around its own axis; the clearing assembly comprises a plurality of sliding plates distributed along the axial direction of the driving rod, the sliding plates are slidably fitted in the shell along the axial direction of the driving rod, and the adjacent two sliding plates are slidably fitted end to end, one of the two sliding plates located on the outermost sides is coaxially rotated with the driving rod, and the other is threadedly connected to the driving rod, when the driving rod rotates, the plurality of sliding plates are telescopically extended along the axial direction of the driving rod; a telescopic part is connected to the driving rod on one or both sides, the telescopic direction of the telescopic part is parallel to the axial direction of the driving rod, the telescopic part can drive the driving rod and the clearing assembly on that side to move along its axial direction, so that relative movement occurs between the two sliding plates opposite to each other.

[0007] Beneficial effect: When blockage occurs in the blanking channel, the coal blocks will accumulate between the sliding plates on the front and rear sides. The driving rod rotates, causing the two adjacent sliding plates to slide relative to each other. The two sliding plates opposite to each other in the front and rear directions are not only symmetrically arranged, but also move simultaneously when they move. Therefore, when all the sliding plates slide at the same time, the material blocked between the front and rear sliding plates will be pulled to move. As the two adjacent sliding plates slide along the axis of the driving rod, the blocked material will be divided into sections. Then the cylinder will push the front driving rod through the connecting plate and move along its axial direction, causing the two corresponding sliding plates in the front and rear to be misaligned. The front and rear sliding plates will produce a rubbing effect on the material blocked inside. At the same time, since there is a certain distance between each section of the material, when each section of the material is rubbed, both ends of each section of the material have a certain deformation space. The rubbing of the material can effectively disperse it. After the blocked material is dispersed, the material can be discharged from the blanking channel, the blocked part will be unblocked, and the normal blanking of the blanking channel will be ensured.

[0008] Preferably, buffer plates are rotatably mounted on the opposite surfaces of the front and rear sliding plates via torsion springs, and the buffer plates rotate along an axis extending in the height direction of the sliding plates.

[0009] The effect is that when the material falls in the drop channel, the material will hit the buffer plate. Since the buffer plate and the sliding plate are connected by a torsion spring, the buffer plate will rotate adaptively to cushion the falling material and prevent the coal blocks from being broken by impact when falling.

[0010] Preferably, the driving assembly includes a fixed block fixedly installed in the blanking channel, a driving tube is rotatably installed on the fixed block, the driving tube is a hollow structure with openings at both ends, and the driving tube can rotate around its own axis, a motor and a driving wheel are installed on the shell, the driving wheel is installed at the output end of the motor, the driving wheel and the driving tube are connected by a transmission belt, the driving tube and the driving rod are circumferentially fixed, so that the driving tube drives the driving rod to rotate, and at the same time, the driving rod connected to the telescopic part is axially slidably fitted with the driving tube.

[0011] The effect is that the driving rod can rotate around its own axis, and at the same time the driving rod connected to the telescopic member can move along its axial direction.

[0012] Preferably, the sliding plates are all fixedly connected with fixed sliders, which slide axially along the driving rod and fit into the shell, the driving rod passes through all the fixed sliders, and the fixed slider near one end of the driving rod fits into the axial rotation of the driving rod, and the fixed slider near the other end of the driving rod fits into the thread of the driving rod.

[0013] Preferably, a slidingly fitting connecting outer tube and a connecting inner tube are provided between two adjacent fixed sliders, and the connecting outer tube and the connecting inner tube are fixedly connected to the two fixed sliders respectively.

[0014] Preferably, a sliding groove and an inserting protrusion are respectively provided on opposite surfaces of two adjacent sliding plates, and the two adjacent sliding plates are slidably engaged with each other through the inserting protrusion and the sliding groove.

[0015] Preferably, the telescopic member is a cylinder mounted on the housing, and a connecting plate is fixedly mounted on the telescopic portion of the cylinder, and the connecting plate is rotatably connected to the driving rod.

[0016] Preferably, a pressure sensor is provided between the telescopic portion of the cylinder and the connecting plate, a blanking port is provided on the shell, a closing plate is rotatably installed at the blanking port, and the opening and closing of the blanking port is controlled by the rotation of the closing plate.

[0017] The effect is that the closing plate is driven to rotate by the motor to close the blanking port, thereby stopping the material from falling into the blanking channel, thereby reducing the blockage pressure and facilitating the rapid unblocking of the blocked material.

[0018] Preferably, friction protrusions are provided on the surface of the sliding plate facing the inner side of the blanking channel to increase the friction between the sliding plate and the material.

[0019] The effect is that when two adjacent sliding plates slide, the blocked materials can be better driven to move, so that the materials can be better divided into multiple sections.

[0020] Preferably, the shell includes a feeding part and a blanking part, and the bottom of the feeding part is connected to two blanking parts, the two blanking parts are arranged along the left and right directions, and the two blanking parts are set in an inverted V shape.

[0021] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: when a blockage occurs in the blanking channel, the driving rod rotates, causing relative sliding between the two adjacent sliding plates. Therefore, when all the sliding plates slide at the same time, the material blocked between the front and rear sliding plates will be pulled to move. As the two adjacent sliding plates slide along the axis of the driving rod, the blocked material will be divided into sections. Then the cylinder will push the front driving rod through the connecting plate to move along its axial direction, causing the two corresponding front and rear sliding plates to be misaligned. The front and rear sliding plates will produce a rubbing effect on the material blocked on the inside. At the same time, since there is a certain distance between each section of the material, when each section of the material is rubbed, both ends of each section of the material have a certain deformation space. The rubbing of the material can effectively disperse it, so that after the blocked material is rubbed, the material can be discharged from the blanking channel, the blocked part will be unblocked, and the normal blanking of the blanking channel is ensured. Not only does it not require shutdown, but it also does not require manual intervention. It can quickly unblock the blocked material and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a cross-sectional view of the present invention.

[0024] Figure 3 It is an exploded schematic diagram of the housing, the guide plate and the blanking plate of the present invention.

[0025] Figure 4 It is a cross-sectional view of the feed portion of the present invention.

[0026] Figure 5 It is an exploded schematic diagram of the housing and the sliding block of the present invention.

[0027] Figure 6 Schematic diagram of the structure of the driving rod of the present invention.

[0028] Figure 7 2 is a cross-sectional view of a sliding plate of the present invention.

[0029] Figure 8 Schematic diagram of the drive tube of the present invention.

[0030] Figure 9 It is a cross-sectional view of the fixed slider of the present invention.

[0031] Figure 10 For the present invention Figure 9 Enlarged view of point A in the middle.

[0032] Figure 11 This is a schematic diagram of the state of the sliding plate of the present invention when it is misaligned.

[0033] Reference numerals: 10. Shell; 11. Feeding part; 12. Blanking part; 13. Blanking channel; 14. Conveyor rack; 15. Conveyor belt; 16. Guide plate; 17. Baffle; 18. Blanking plate; 19. Blanking port; 20. Drive rod; 21. Fixed block; 22. Drive tube; 23. Protective shell; 24. Drive belt; 25. Cylinder; 26. Connecting plate; 30. Fixed slider; 31. Sliding plate; 32. Sliding groove; 33. Inserting protrusion; 34. Connecting outer tube; 35. Connecting inner tube; 40. Receiving groove; 41. Buffer plate; 50. Fixed rack; 51. Closing plate. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 11 As shown, a specific embodiment of a lump coal conveying device for a coal bin of the present invention includes a shell 10, a feeding module, a blockage clearing module and a material dropping regulating module.

[0036] The feeding module, the clearing module and the blanking adjustment module are all arranged on the shell 10. The feeding module is used to transport the lump coal into the shell 10. When the channel in the shell 10 is blocked, the clearing module can clear the blocked part without the need for manual cleaning by workers. The blanking adjustment module is used to adjust the feeding amount of the feeding module. Especially when blockage occurs in the shell 10, it can automatically suspend the feeding of the feeding module to avoid worsening of the blockage, which is conducive to the clearing module to quickly clear the blocked part.

[0037] like Figure 1 and Figure 2 As shown, the shell 10 includes a feeding part 11 and a dropping part 12. In this embodiment, the bottom and right side of the feeding part 11 are both open structures. The right side opening structure facilitates the feeding module to transport the lump coal into the feeding part 11.

[0038] The bottom of the feed part 11 is connected to two blanking parts 12, which are arranged in the left and right directions, and the two blanking parts 12 are arranged in an inverted V shape. The upper ends of the two blanking parts 12 are connected to the bottom of the feed part 11. Both blanking parts 12 have a blanking channel 13 with a rectangular structure. The blanking channel 13 is also inclined. The upper and lower ends of the blanking channel 13 are both open structures. The upper end of the blanking channel 13 is connected to the bottom of the feed part 11, and the lower end of the blanking channel 13 extends to the outside of the blanking part 12. The coal blocks entering the feed part 11 can fall into the two blanking channels 13 on both sides respectively, and then fall to the collection point through the blanking channels 13. The conveying device in this embodiment is a one-in and two-out structure. By setting two blanking channels 13, it can be applied to different application scenarios.

[0039] like Figure 2 、 Figure 3 and Figure 4 As shown, the feeding module includes a conveying frame 14 , a conveying belt 15 , a guide plate 16 , a baffle 17 and a blanking plate 18 .

[0040] A horizontally mounted conveyor frame 14 is installed at the right opening of the feed section 11. The conveyor frame 14 is arranged horizontally in the left-right direction, with its left end extending into the interior of the feed section 11. A conveyor belt 15 is mounted on the conveyor frame 14 via rollers, which rotate along axes extending in the front-to-back direction. A motor is also mounted on the conveyor frame 14 to drive the rollers, thereby rotating the conveyor belt 15. Coal lumps to be transported are added to the conveyor belt 15, which then rotates, transporting the coal lumps into the feed section 11.

[0041] A guide plate 16 is fixedly mounted at an angle to the left sidewall of the feed section 11. The front and rear sides of the guide plate 16 are fixed to the front and rear sidewalls of the feed section 11, respectively. The right edge of the guide plate 16 is located in the middle of the feed section 11 in the left-right direction. In other words, there is a certain distance between the guide plate 16 and the right sidewall of the feed section 11 to facilitate the downward flow of materials. The right end of the guide plate 16 is located in the middle of the feed section 11 to ensure that materials falling from the right end of the guide plate 16 fall evenly into the two drop channels 13 below.

[0042] The guide plate 16 gradually tilts downward from left to right, and the left end of the conveyor belt 15 is located directly above the guide plate 16 , so that the material on the conveyor belt 15 falls on the guide plate 16 after being conveyed to the left end.

[0043] An inclined baffle 17 is provided on the right edge of the upper surface of the guide plate 16. The front end of the baffle 17 is flush with the guide plate 16 and gradually tilts to the right from the front to the back. A certain distance exists between the rear end of the baffle 17 and the rear side wall of the feed section 11, thereby forming a discharge port between the rear end of the baffle 17 and the rear side wall of the feed section 11. In other words, the discharge port is located near the rear side of the guide plate 16. Material that falls from the conveyor belt 15 onto the guide plate 16 can be discharged from the discharge port along the inclined surface of the guide plate 16 and the baffle 17.

[0044] A blanking plate 18 is fixedly mounted on the rear sidewall of the feed section 11. This plate is located below the guide plate 16, allowing material discharged from the outlet of the guide plate 16 to fall onto the blanking plate 18. The left and right sides of the blanking plate 18 are fixedly connected to the left and right sidewalls of the feed section 11, respectively. The blanking plate 18 is tilted, gradually sloping downward from rear to front. A blanking opening 19 is defined between the lowest point on the front side of the blanking plate 18 and the front sidewall of the feed section 11. Material that falls from the guide plate 16 onto the blanking plate 18 ultimately passes through the blanking opening 19 and falls into the two blanking channels 13 below.

[0045] like Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 as well as Figure 11 As shown, both left and right material channels 13 are equipped with clearing modules. Each clearing module includes two symmetrically arranged front and rear clearing units, which are respectively installed on the front and rear side walls of the material channel 13. It is particularly important to emphasize that the structures of the front and rear clearing units are basically identical, differing in that the rear clearing unit is fixedly mounted on the rear side wall of the material channel 13, while the front clearing unit can move along the length of the material channel 13 (the direction in which the material falls within the material channel 13). This will be explained in detail below.

[0046] The blockage clearing units on the front and rear sides both include a driving rod 20, a driving assembly, and a blockage clearing assembly. The blockage clearing unit located on the front side also includes a pushing assembly.

[0047] The following description will first be made by taking the driving rod 20 and the driving assembly in the rear blockage clearing unit as an example.

[0048] The rear driving rod 20 is rotatably mounted in the blanking channel 13 , and the axis of the driving rod 20 is parallel to the length direction of the blanking channel 13 , and both ends of the driving rod 20 are rotatably engaged with the blanking portion 12 .

[0049] like Figure 5 、 Figure 6 as well as Figure 8 As shown, the drive assembly includes a fixed block 21, a drive tube 22, and a transmission belt 24. The fixed block 21 is fixedly installed in the blanking channel 13, and the fixed block 21 is located near the upper end of the drive rod 20. The drive tube 22 is rotatably mounted on the fixed block 21. The drive tube 22 is a hollow structure with both ends open, and the drive tube 22 can rotate around its own axis. The drive rod 20 passes through the drive tube 22, and the drive rod 20 and the drive tube 22 are connected by a key, so that the drive tube 22 and the drive rod 20 are circumferentially fixed. That is, when the drive tube 22 rotates, it can drive the drive rod 20 to rotate together.

[0050] A protective housing 23 is fixedly mounted on the upper surface of the blanking portion 12. A motor and a drive wheel (not shown) are mounted within the protective housing 23. The drive wheel is mounted at the output end of the motor, enabling the motor to drive the drive wheel to rotate. An opening extending vertically through the upper surface of the blanking portion 12 is formed at a position corresponding to the drive tube 22. The drive wheel and drive tube 22 are connected by a drive belt 24, which passes through the opening. Rotation of the drive wheel drives the drive tube 22, ultimately rotating the drive rod 20. It should be noted that mounting the motor within the protective housing 23 and providing the drive wheel on the motor are both conventional techniques and are not shown in the figures, and will not be further described here.

[0051] It should be noted that the front drive rod 20 is not only capable of rotating about its own axis, but is also capable of moving in the direction of its own axis. Therefore, in order to ensure the movement of the front drive rod 20, the front drive rod 20 is also capable of sliding along the axial direction of the front drive tube 22. In this embodiment, the front drive rod 20 and the drive tube 22 are slidably connected by means of a sliding groove and a slider (not shown in the figure). The sliding groove and the slider ensure that the drive rod 20 and the drive tube 22 are circumferentially fixed and axially sliding. In other words, the drive rod 20 can slide along the axial direction of the drive tube 22, and the drive tube 22 can also drive the drive rod 20 to rotate.

[0052] Continue back Figure 5 and Figure 6 The push assembly includes a cylinder 25 fixedly mounted on the upper surface of the blanking portion 12 near the front. The extension and contraction direction of the cylinder 25 is consistent with the axial direction of the drive rod 20. A connecting plate 26 is fixedly mounted on the extension portion of the cylinder 25. A rectangular through-hole is opened on the upper surface of the blanking portion 12 at a position corresponding to the connecting plate 26. The connecting plate 26 extends through the through-hole into the blanking channel 13. The end of the connecting plate 26 located in the blanking channel 13 is rotatably connected to the lower end of the front drive rod 20.

[0053] Thus, through the expansion and contraction of the cylinder 25, the connecting plate 26 drives the front driving rod 20 to move along its axial direction, and the driving tube 22 can also drive the driving rod 20 to rotate around its axial direction.

[0054] like Figure 6 、 Figure 7 、 Figure 8 and Figure 10 As shown, the clearing assembly includes a fixed slider 30 , a sliding plate 31 , a sliding groove 32 , an inserting protrusion 33 , a connecting outer tube 34 and a connecting inner tube 35 .

[0055] It should be noted that the clearing components on the clearing units on the front and rear sides are symmetrically arranged and have exactly the same structure.

[0056] Multiple fixed sliders 30 are evenly spaced along the axis of the drive rod 20. The drive rod 20 passes through all of the fixed sliders 30. The fixed sliders 30 slidably engage with the blanking portion 12. In this embodiment, there are four fixed sliders 30. In other variations, the number of fixed sliders 30 can be six, eight, or even more. However, it should be emphasized that there must be at least two fixed sliders 30.

[0057] In this embodiment, the fixed slider 30 near the rightmost end of the drive rod 20 is rotationally engaged with the drive rod 20, while the fixed slider 30 near the leftmost end of the drive rod 20 is threadedly connected to the drive rod 20. That is, the portion of the drive rod 20 near the left end is threaded, and the leftmost fixed slider 30 is located on the thread of the drive rod 20. The fixed slider 30 located between the left and right fixed sliders 30 can be non-contacting with the drive rod 20, or can be slidingly engaged with the drive rod 20.

[0058] like Figure 8 and Figure 10 As shown, two adjacent fixed sliders 30 along the axial direction of the drive rod 20 are connected by a telescopic tube. The telescopic tube includes an outer connecting tube 34 and an inner connecting tube 35. The outer connecting tube 34 and the inner connecting tube 35 are slidably fitted together, and the ends of the outer connecting tube 34 and the inner connecting tube 35 are respectively fixedly connected to the two adjacent fixed sliders 30. The outer connecting tube 34 and the inner connecting tube 35 are both hollow structures, so the drive rod 20 passes through all of the outer connecting tubes 34 and the inner connecting tube 35. The outer connecting tube 34 and the inner connecting tube 35 are coaxially arranged with the drive rod 20.

[0059] A limiting structure is provided between the connecting outer tube 34 and the connecting inner tube 35. That is, the limiting structure enables the connecting inner tube 35 to slide a certain distance on the connecting outer tube 34 without the connecting inner tube 35 being detached from the connecting outer tube 34. This limiting structure belongs to the prior art and will not be described in detail here.

[0060] When the drive rod 20 rotates, it causes the leftmost fixed slider 30, which is threadedly connected to the drive rod 20, to slide. This sliding movement of the fixed slider 30 causes the adjacent fixed slider 30 to move in the same direction via the connecting outer tube 34 and the connecting inner tube 35. This creates relative sliding between the connecting outer tube 34 and the connecting inner tube 35. When the sliding between the connecting outer tube 34 and the connecting inner tube 35 reaches its maximum limit, it begins to pull the adjacent fixed slider 30 to move. This causes all the fixed sliders 30 to slide, and relative sliding occurs between the connecting outer tube 34 and the connecting inner tube 35 inside each adjacent fixed slider 30. For example, when the connecting inner tube 35 slides outward from the connecting outer tube 34 to its maximum travel, the distance between the two adjacent fixed sliders 30 increases compared to before. Initially, the distance between the two adjacent fixed sliders 30 is minimal. As the drive rod 20 rotates, this distance increases.

[0061] Since the fixed slider 30 on the rightmost side (the side located at the upper position) is rotationally matched with the driving rod 20, the position of the fixed slider 30 will never move.

[0062] When the driving rod 20 rotates and the distance between two adjacent fixed sliders 30 becomes the maximum, the cylinder 25 will push the front driving rod 20 to move along its axial direction through the connecting plate 26. At this time, the driving rod 20 will drive all the fixed sliders 30 on the front side to move synchronously.

[0063] Each fixed slider 30 is fixedly mounted with a sliding plate 31, which is a rectangular plate-shaped structure. The sliding plate 31 at the front side slides with the front side wall of the blanking channel 13, and the sliding plate 31 at the rear side slides with the rear side wall of the blanking channel 13.

[0064] Along the axis of the driving rod 20, two adjacent sliding plates 31 are in sliding engagement with each other. Therefore, when the driving rod 20 rotates to increase the distance between two adjacent fixed sliders 30, the fixed sliders 30 also drive the corresponding sliding plates 31 to move, thereby causing the two adjacent sliding plates 31 to slide relative to each other.

[0065] The left end surface of the sliding plate 31 is provided with a sliding groove 32, and the right end surface of the sliding plate 31 is provided with an insertion protrusion 33 corresponding to the sliding groove 32. Adjacent sliding plates 31 are slidably engaged with the sliding groove 32 via the insertion protrusion 33. In other words, the insertion protrusion 33 can slide within the sliding groove 32, enabling sliding and retracting between the two adjacent sliding plates 31. When the insertion protrusion 33 slides into the sliding groove 32, the length of the adjacent sliding plates 31 is shortened. Conversely, when the insertion protrusion 33 slides out of the sliding groove 32, the length of the adjacent sliding plates 31 is increased.

[0066] When a blockage occurs in the blanking channel 13, the coal blocks will accumulate between the sliding plates 31 on the front and rear sides. First, the driving assembly will simultaneously drive the driving rods 20 on the front and rear sides to rotate. When the driving rods 20 rotate and the distance between the two adjacent fixed sliders 30 increases, the fixed sliders 30 will also drive the corresponding sliding plates 31 to move, so that the two adjacent sliding plates 31 will slide relative to each other, that is, the plug-in protrusions 33 will slide out of the sliding grooves 32, and the two sliding plates 31 opposite to each other in the front and rear directions are not only symmetrically arranged, but will also move simultaneously when they move. Therefore, when all the sliding plates 31 slide at the same time, the material blocked between the front and rear sliding plates 31 will be pulled to move. As the two adjacent sliding plates 31 slide along the axial direction of the driving rod 20, the blocked material will be divided into sections. That is, the material is divided into multiple blocks along the axial direction of the driving rod 20, and there will be a certain distance between the two adjacent blocks of material. The distance between the two adjacent blocks of material is the distance between the two adjacent sliding plates 31 sliding, and it is also the length of the plug-in protrusion 33 sliding out of the sliding groove 32. Each section of material will exist between the two corresponding front and rear sliding plates 31.

[0067] In this embodiment, friction protrusions can also be provided on the opposing surfaces of the front and rear sliding plates 31 to increase the friction on the material. When two adjacent sliding plates 31 slide, the blocked material can be better driven to move, making it easier to divide the material into multiple sections.

[0068] Then the cylinder 25 will push the front driving rod 20 to move along its axial direction through the connecting plate 26. At this time, the driving rod 20 will drive all the fixed sliders 30 on the front side to move synchronously, that is, the two corresponding sliding plates 31 on the front and rear will be misaligned (such as Figure 11 ), so that the two sliding plates 31 facing each other rub the material blocked on the inside, and there is space between each section of the material to ensure its dispersion. The sliding plates 31 rub the material so that the material can be dispersed. After the blocked material is rubbed and dispersed, the material can be discharged from the blanking channel 13, and the blocked part is unblocked, ensuring the normal blanking of the blanking channel 13.

[0069] like Figure 6 and Figure 11As shown, each sliding plate 31 has a receiving slot 40 formed on its front and rear facing surfaces. A buffer plate 41 is mounted within the slot 40, pivoted by a torsion spring. The buffer plate 41 rotates along an axis extending in the height direction of the sliding plate 31. Normally, the buffer plates 41 are open, meaning that an angle exists between them and the sliding plate 31. The two opposing buffer plates 41, located on the front and rear sides, form an inverted figure-eight shape. When material falls within the drop channel 13, it impacts the buffer plates 41. Because the buffer plates 41 are connected to the sliding plate 31 via a torsion spring, the buffer plates 41 rotate adaptively, cushioning the falling material and preventing the coal lumps from being crushed by impact.

[0070] When the material is blocked, the material will squeeze the buffer plates 41 on both sides, causing the buffer plates 41 on both sides to rotate into the receiving groove 40. When the cylinder 25 pushes the front driving rod 20 to move, the two corresponding sliding plates 31 at the front and rear sides will be misaligned. The two buffer plates 41 at the front and rear sides will also give the material a certain pushing force, and the forces applied to the inner material by the two opposite buffer plates 41 at the front and rear sides are in a cross state (such as Figure 11 ), which helps to disperse the blocked materials.

[0071] The blanking adjustment module includes a fixing frame 50 and a closing plate 51 .

[0072] like Figure 3 and Figure 4 As shown, a pressure sensor (not shown in the figure) is installed between the connecting plate 26 and the telescopic part of the cylinder 25. When the material is blocked in the blanking channel 13, since the blanking channel 13 is in an inclined state, the gravity of the material will cause the sliding plate 31 on the front side to have a force to move downward, that is, the driving rod 20 will have a certain pushing force on the connecting plate 26, so a pressure sensor is set between the connecting plate 26 and the telescopic part of the cylinder 25. The pressure sensor can detect the downward pushing force of the material on the sliding plate 31 in real time. When the pressure sensor detects a certain pressure, it means that the blanking channel 13 is blocked. The larger the pressure value, the more serious the blockage of the material in the blanking channel 13.

[0073] A fixed frame 50 is mounted at the material dropout opening 19 within the feed section 11. A rotatable closing plate 51 is mounted on the fixed frame 50. The left and right closing plates 51 correspond to the left and right material dropout channels 13, respectively. Both closing plates 51 rotate along axes extending in the left-right direction and are driven by a motor.

[0074] When the motor drives the closing plate 51 to rotate, the material dropout opening 19 can be closed. When material is blocked in the material dropout channel 13, the pressure sensor detects it and controls the motor to drive the closing plate 51 to rotate, closing the material dropout opening 19, thereby stopping the material from falling into the material dropout channel 13. At the same time, the speed of the motor on the conveyor belt 15 can be controlled to reduce the speed of the conveyor belt 15 and the speed at which the material falls into the feed part 11, thereby reducing the blockage pressure and facilitating the rapid unblocking of the blocked material.

[0075] A closing plate 51 is provided above each of the left and right blanking channels 13, so that the feeding of the blanking channels 13 on both sides can be controlled respectively. When the blanking channel 13 on one side is blocked, only the closing plate 51 on one side can be closed, while the closing plate 51 on the other side continues to be open, so that the blanking channel 13 on the other side continues to work.

[0076] In addition, in this embodiment, one side of the two groups of clearing units on the front and rear sides is fixed and the other side is movable. In other embodiments, both the clearing units on the front and rear sides can be movable, and the moving directions of the two clearing units are opposite, and the rubbing effect of the material can still be achieved.

[0077] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A coal bunker lump coal conveying device, comprising: The shell has an inclined blanking channel therein; the blanking channel is provided with a clearing module, the clearing module comprising a driving rod, a driving assembly and a clearing assembly symmetrically arranged on opposite side walls of the blanking channel; The driving rod is arranged along the length direction of the blanking channel, the axis of the driving rod is parallel to the length direction of the blanking channel, and one end of the driving rod is connected to the driving assembly, and the driving assembly is used to drive the driving rod to rotate around its own axis; The blockage clearing assembly includes a plurality of sliding plates distributed along the axial direction of the drive rod. The sliding plates are slidably fitted in the housing along the axial direction of the drive rod, and two adjacent sliding plates are slidably fitted end to end. One of the two sliding plates located on the outermost sides rotates coaxially with the drive rod, and the other is threadedly connected to the drive rod. When the drive rod rotates, the plurality of sliding plates are extended and retracted along the axial direction of the drive rod. A telescopic part is connected to the driving rod on one or both sides, and the telescopic direction of the telescopic part is parallel to the axial direction of the driving rod. The telescopic part can drive the driving rod and the clearing assembly on that side to move along its axial direction, so that the two sliding plates on both sides move relative to each other.

2. A coal bunker lump coal conveying device according to claim 1, characterized in that: Buffer plates are rotatably mounted on the opposite surfaces of the front and rear sliding plates via torsion springs, and the buffer plates rotate along an axis extending in the height direction of the sliding plates.

3. A coal bunker lump coal conveying device according to claim 1, characterized in that: The driving assembly includes a fixed block fixedly installed in the blanking channel, a driving tube is rotatably installed on the fixed block, the driving tube is a hollow structure with openings at both ends, and the driving tube can rotate around its own axis, a motor and a driving wheel are installed on the shell, the driving wheel is installed at the output end of the motor, the driving wheel and the driving tube are connected by a transmission belt, the driving tube and the driving rod are circumferentially fixed, so that the driving tube drives the driving rod to rotate, and at the same time, the driving rod connected to the telescopic part is axially slidably fitted with the driving tube.

4. A coal bunker lump coal conveying device according to claim 1, characterized in that: The sliding plates are all fixedly connected with fixed sliders, which slide axially along the driving rod and fit into the shell. The driving rod passes through all the fixed sliders, and the fixed slider near one end of the driving rod rotates axially with the driving rod, and the fixed slider near the other end of the driving rod fits into the driving rod thread.

5. A coal bunker lump coal conveying device according to claim 4, characterized in that: A connecting outer tube and a connecting inner tube that are slidably matched are provided between two adjacent fixed sliders, and the connecting outer tube and the connecting inner tube are fixedly connected to the two fixed sliders respectively.

6. A coal bunker lump coal conveying device according to any one of claims 1 to 5, characterized in that: The opposite surfaces of two adjacent sliding plates are respectively provided with a sliding groove and an inserting protrusion, and the two adjacent sliding plates are slidably matched with each other through the inserting protrusion and the sliding groove.

7. A coal bunker lump coal conveying device according to claim 6, characterized in that: The telescopic member is a cylinder mounted on the housing, and a connecting plate is fixedly mounted on the telescopic portion of the cylinder, and the connecting plate is rotatably connected to the driving rod.

8. The lump coal conveying device for a coal bunker according to claim 7, characterized in that: A pressure sensor is provided between the telescopic portion of the cylinder and the connecting plate, a blanking port is provided on the shell, a closing plate is rotatably installed at the blanking port, and the opening and closing of the blanking port is controlled by the rotation of the closing plate.

9. The lump coal conveying device for a coal bunker according to claim 8, characterized in that: The surface of the sliding plate facing the inner side of the blanking channel is provided with friction protrusions to increase the friction between the sliding plate and the material.

10. A coal bunker lump coal conveying device according to claim 9, characterized in that: The shell includes a feeding part and a blanking part. The bottom of the feeding part is connected to two blanking parts. The two blanking parts are arranged along the left and right directions, and the two blanking parts are arranged in an inverted V shape.

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