A split-flow bin suitable for raw coal transportation

Abstract

The utility model discloses a shunting bin suitable for raw coal transportation relates to raw coal transportation field, including the raindrop shape shunting hammer of the front -back wall between the middle bin hopper is installed, and the lower part of raindrop shape shunting hammer is rotatedly connected with the wall body of middle bin hopper through fixed pivot, the middle part of raindrop shape shunting hammer still is fixedly connected with the adjusting pivot, the front -back wall of middle bin hopper corresponds adjusting pivot end position, and each is equipped with a guiding arc groove that allows adjusting pivot end to move in its activity, and the both ends of adjusting pivot are respectively extended the front -back side wall of middle bin hopper through guiding arc groove, and are respectively connected with the synchronous drive of oil cylinder, and the raindrop shape shunting hammer rotates around fixed pivot and changes the inclination of raindrop shape shunting hammer around relative middle bin hopper through the drive adjusting pivot moves in guiding arc groove, and the two corners of middle bin hopper are connected with two shunting hoppers respectively, and the upper end of two shunting hoppers is inserted with two material blocking inserts of hydraulic drive, and the lower end of two shunting hoppers is equipped with the discharge bin door of the link of next procedure.

Description

Technical Field

[0001] This utility model relates to the field of raw coal transportation, and particularly to the field of diversion transportation, specifically a diversion bin suitable for raw coal transportation. Background Technology

[0002] In the raw coal transportation system of large-scale mines with a capacity of tens of millions of tons, especially for Carboniferous raw coal, the coal seams are particularly thick, the coal is highly caking, the transport particle size is highly agglomerated, the coal seams are highly moist, the transport particle size has poor climbing ability, the amount of coal transported varies, the transport frequency is unstable, there are many interlayers in the coal seams, it is a soft rock without mud, and the transport has a large amount of gangue. This puts enormous pressure on the use and maintenance of diversion equipment, as detailed below.

[0003] 1. Due to the high proportion of highly caking coal, with a caking index of 0~99 and a maximum plastic layer thickness of 0~17mm, the coal has strong particle agglomeration during transportation, which easily leads to accumulation and blockage in the distribution bin. 2. The high water content of the coal seam results in poor climbing ability of raw coal during transportation, further exacerbating the risk of blockage in the diversion bin; 3. The daily output of extra-thick coal seams is large, and the operation method is "one cut and one release", which causes the frequency of raw coal transportation to be unstable, with the amount of coal varying from one time to another, thus placing higher demands on the diversion equipment.

[0004] 4. The raw coal contains a large amount of gangue, and most of the raw coal particles are between 150-300mm in size, while the largest gangue particles can reach 1.7m in size. Large pieces of coal and gangue are easy to get stuck in the diversion bin, causing the entire system to shut down frequently.

[0005] 5. Due to the continuous scouring and impact of coal flow and gangue, key components such as the diversion beam are severely worn, which not only increases the frequency of maintenance but also further increases the probability of blockage.

[0006] Although existing diversion equipment has been improved to some extent, it still cannot effectively solve the problem of easy blockage and damage of the diversion bin in the transportation of raw coal with a capacity of tens of millions of tons, especially when dealing with raw coal with strong adhesion, high gangue content and large particle size. This seriously restricts the efficient and safe production of coal mines. Utility Model Content

[0007] In order to solve the above-mentioned technical problems, this utility model provides a diversion bin suitable for raw coal transportation.

[0008] This utility model is achieved using the following technology: This utility model provides a diversion bin suitable for raw coal transportation, including a diversion bin body connected to the conveyor belt outlet. The diversion bin body includes an upper bin hopper, a middle bin hopper, and two diversion bins connected in sequence. A raindrop-shaped diversion hammer is installed between the front and rear walls of the middle bin hopper. The lower part of the raindrop-shaped diversion hammer is rotatably connected to the wall of the middle bin hopper via a fixed pivot. An adjusting pivot is also fixedly connected to the middle part of the raindrop-shaped diversion hammer. On the front and rear walls of the middle bin hopper, corresponding to the end position of the adjusting pivot, a guide arc groove is provided to allow the end of the adjusting pivot to move within it. The two ends of the adjusting pivot extend out of the middle bin hopper through the guide arc groove. The front and rear side walls of the hopper are synchronously driven and connected to the hydraulic cylinders installed on the outer wall of the middle hopper. The raindrop-shaped diverting hammer rotates around the fixed pivot and changes its tilt angle relative to the middle hopper at the same time by moving the driving adjustment pivot in the guide arc groove. The guide arc groove is configured such that when the adjustment pivot is at any position in the guide arc groove, the body structure of the raindrop-shaped diverting hammer completely covers the opening of the guide arc groove. The two corners of the middle hopper are connected to two diverting hoppers respectively. The upper ends of the two diverting hoppers are fitted with two hydraulically driven baffle plates. The lower ends of the two diverting hoppers are provided with discharge hopper doors that connect to the next process.

[0009] During implementation, the system includes a diversion bin connected to the conveyor belt outlet. The inner surface of the diversion bin is lined with wear-resistant plates. The interior of the diversion bin is equipped with a buffer grid located in the coal flow impact zone. The buffer grid can store coal, creating a "coal-on-coal" buffering effect to reduce direct impact and wear on the bin walls. The diversion bin consists of an upper bin hopper, a middle bin hopper, and two diversion bins connected in sequence. The upper bin hopper has an inclined surface facing the conveyor belt outlet.

[0010] The central hopper forms an expanded cavity to slow down the coal flow rate and eliminate stress saturation.

[0011] Based on the pressure saturation effect, the flow velocity at the bottleneck is limited; based on the principle of particle beam stabilization, the shear rate at the bottleneck increases, resulting in agglomeration. Raindrop-shaped flow dividers are installed between the front and rear walls of the central hopper to increase the flow velocity and prevent the shear rate at the bottleneck from exceeding the critical value, thus preventing blockage. Furthermore, unlike a completely teardrop shape, the top of this device needs to be a flat dome instead of a pointed top. That is, the top of the teardrop-shaped flow divider is a flat dome, and a steel beam is reinforced and welded on the flat dome. The steel beam moves with the teardrop-shaped flow divider, increasing its impact resistance and reducing the degree of weld breakage. Specifically, the top of the teardrop-shaped flow divider is a flat dome structure, and an I-beam is reinforced on the flat dome structure; the sidewalls of the teardrop-shaped flow divider are streamlined. The lower part of the raindrop-shaped diverting hammer is rotatably connected to the wall of the central hopper via a fixed pivot. An adjustment pivot is also fixedly connected to the middle of the raindrop-shaped flow divider; On the front and rear walls of the central hopper, corresponding to the end of the adjusting pivot, there is a guide arc groove that allows the end of the adjusting pivot to move within it. The guide arc groove is a segment of circular arc, its center coinciding with the axis of the fixed pivot. The width of the guide arc groove matches the diameter of the adjusting pivot to prevent material leakage. Both ends of the adjusting pivot extend from the front and rear side walls of the central hopper through the guide arc grooves and are synchronously driven and connected to hydraulic cylinders installed on the outer wall of the central hopper. By driving the adjusting pivot to move within the guide arc grooves, the raindrop-shaped diverting hammer rotates around the fixed pivot, simultaneously changing the tilt angle of the raindrop-shaped diverting hammer relative to the central hopper. Specifically, the adjusting pivot... The two ends of the cylinder are hinged to the piston rods of their respective cylinders via spherical bearings. The bottom of the cylinder is hinged to a cylinder mounting seat fixed to the outer wall of the compartment via another spherical bearing and a pin. Preferably, the hinge point of the cylinder mounting seat (i.e., the fixed end of the cylinder) is located on the same circumference with the axis of the fixed pivot as the center. This circumference is concentric with the guide arc groove to avoid motion interference. The two cylinders are connected through a hydraulic circuit and synchronously controlled by a hydraulic handle to achieve synchronous movement. The synchronous movement is achieved by using existing technologies commonly used by those skilled in the art (such as using a synchronous valve or mechanical interlock) to drive the adjusting pivot to move smoothly along the guide arc groove. The guide arc groove is configured such that when the adjusting pivot is located at any position within the guide arc groove, the main body structure of the raindrop-shaped diverting hammer completely covers the opening of the guide arc groove, preventing a large amount of material from leaking out. The stroke of the hydraulic cylinder is configured to drive the adjustment pivot to move 10cm, so as to achieve precise and rapid adjustment of the width of the diversion channel; The two corners of the central hopper are connected to two diversion hoppers respectively. The upper ends of the two diversion hoppers are fitted with two hydraulically driven baffle plates. Specifically, each diversion hopper has a baffle plate guide seat welded to its side wall. The guide seat has a guide groove, and the two sides of the baffle plate are embedded in the guide groove to form a tight sliding fit. At the same time, the hydraulic cylinder that drives the baffle plate is connected to the baffle plate through a pin and fixed to the bracket on the outer wall of the hopper through another pin. This ensures that the baffle plate can be smoothly inserted and pulled out in a straight line under hydraulic drive, which is used to completely switch or close the coal flow channel. The lower ends of the two diversion hoppers are equipped with discharge hopper doors that connect to the next process. The lower ends of each diversion hopper are inclined with buffer guide plates facing the discharge hopper doors.

[0012] In operation, the raw coal transportation system carries the coal flow from the conveyor belt into the upper hopper of the diversion bin. At this time, the raindrop-shaped diversion hammer in the middle hopper remains in a neutral or preset position. The coal flow is diverted to two diversion hoppers and enters the next stage equipment through the discharge bin door. The operator listens to the sound of the coal flow falling, monitors the diversion bin, and checks its operating status. When the sound of falling coal and gangue in the diversion bin changes from crisp to dull, an emergency call is immediately made. The shift leader confirms the blockage and cooperates with the operator to complete a quick adjustment. Specifically, the adjustment involves operating the hydraulic handle to send a command to the cylinders. The two cylinders move synchronously under the guarantee of the hydraulic circuit, driving the adjusting pivot to move along the guide arc groove, thereby causing the raindrop-shaped diversion hammer to rotate around the fixed pivot, changing its tilt angle. The streamlined side of the diversion hammer breaks up the formed coal and gangue clusters and stress arches, restoring smooth coal flow. In this device, the diversion hammer can be moved 10cm by operating the hydraulic handle to adjust the width of the lower opening of the left and right diversion bins and prevent random blockages.

[0013] When it is necessary to switch transport routes, the corresponding baffle plate is extended by the hydraulic system to close the upper inlet of the diversion hopper and guide all coal flow to the other side.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a diversion bin for raw coal transportation. By improving the structure of the diversion bin and combining it with an expandable streamlined line at the original equipment location, the coal flow path is optimized from the root, which completely solves the problem of blockage in the diversion bin and ensures the continuity of production.

[0015] The movable, raindrop-shaped diversion hammer allows for real-time fine-tuning, effectively reducing coal flow eddies and turbulence. This effectively addresses complex operating conditions such as agglomeration of highly caking coal, blockage by large pieces of gangue, and fluctuations in coal volume. Simultaneously, the reduction of eddies and turbulence lessens the direct impact and wear of raw coal on the bin walls, improving the durability of the diversion bin and significantly enhancing its impact resistance and weld crack prevention capabilities, thus extending the equipment's service life.

[0016] According to on-site statistics, the diversion bin designed in this application for raw coal transportation has achieved more than three consecutive months without system shutdowns due to diversion bin blockage, completely resolving the blockage problem. Compared with existing technologies, it avoids the need for manual entry into dangerous areas for cleaning operations, achieving zero accidents in transportation safety.

[0017] According to statistics and calculations, the renovation can avoid economic losses of approximately 23 million yuan per month, and the economic benefits are extremely significant. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this application.

[0019] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0020] Figure 3 A line graph showing the monthly number of shutdowns due to congestion in the diversion compartment using existing technology.

[0021] In the diagram: 1. Upper hopper; 2. Middle hopper; 3. Diverter hopper; 4. Baffle plate; 5. Buffer guide plate; 6. Raindrop-shaped diverter hammer; 7. Fixed pivot; 8. Adjusting pivot; 9. Guide arc groove; 10. Hydraulic cylinder. Detailed Implementation

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] A diversion bin suitable for raw coal transportation, taking the diversion bin renovation in the raw coal transportation system of the Tongxin Mine, a 10-million-ton intelligent coal mine in the Carboniferous system of Datong Mining Area, as an example: The mine is currently a Carboniferous-Permian mine, with the lower Permian Shanxi Formation and the upper Carboniferous Taiyuan Formation forming the lower part. The coal types are: mainly gas coal, followed by 1 / 3 coking coal, with some weakly caking coal, and a few long-flame coal and 1 / 2 medium-caking coal. The caking index is 0-99, and the maximum thickness of the plastic layer is 0-17mm, classifying it as strongly caking coal.

[0024] The groundwater is mainly replenished by Cambrian-Ordovician karst fissure aquifers, with aquifer thickness of 7.4–55 m. The mine has a weak to moderate water-bearing capacity, and the hydrogeological type of its main coal seam C3-5# is of medium type.

[0025] The rock strata consist of sandstone, sandy mudstone, mudstone, and coal seams, which are interbedded and relatively thick. The main roof of the coal seam is sandstone: its distribution is relatively stable and its thickness is relatively large, mostly in thick layers with cross-bedding and cemented by calcareous mudstone; the immediate roof is sandy mudstone and mudstone, with many layers, but generally thin, mostly in thin layers with horizontal or wavy bedding. The mudstone does not exhibit rheological properties and does not soften or become muddy when exposed to water, and is not considered a weak interlayer.

[0026] The mining adopts a full-height fully mechanized top coal caving method. The main coal seam, C3-5#, is an extra-thick coal seam with an average thickness of 25.89m, resulting in a large daily output. The operation method is "one cut, one caving", with the top coal caving method using two rounds of grouped intermittent caving.

[0027] After the raw coal arrives at the surface from underground, it first enters the raw coal workshop for transportation and diversion. Then it is sorted by two 150mm linear vibrating grading screens. The raw coal enters the coal washing plant for further refining, while the gangue is transported away to the gangue yard.

[0028] According to statistics, the monthly number of shutdowns due to congestion in the diversion compartment is as follows: Figure 3When using existing technology, large pieces of coal and gangue can become stuck when transporting a slightly larger volume of coal, causing blockages in the entire diversion bin and system shutdown. Simultaneously, the scouring and impact of coal and gangue causes continuous wear on the diversion beams, further increasing the chances of coal and gangue getting stuck in the diversion bin, severely impacting the normal operation of the coal flow system.

[0029] like Figures 1-3 As shown, the diversion bin body is connected to the conveyor belt outlet. In this embodiment, the conveyor belt is a 103 belt. The vertical drop between the diversion bin body and the drive roller of the 103 belt exceeds 4.5m, and the vertical drop in length of the diversion bin body exceeds 7.6m. It is made of double-layer 20mm manganese steel plate welded together. The inner surface of the diversion bin body is covered with wear-resistant plate. The interior of the diversion bin body is equipped with a buffer grid in the coal flow impact area. The interior of the buffer grid can store coal, forming a "coal-on-coal" buffering effect to reduce the direct impact and wear on the bin wall. However, it should be noted that the thickness of the buffer grid should not cause excessive coal accumulation to avoid excessively reducing the throughput. The diversion bin body includes an upper bin hopper 1, a middle bin hopper 2, and two diversion bins 3 connected in sequence. The side of the upper bin hopper 1 facing the conveyor belt outlet is an inclined surface.

[0030] The middle hopper 2 forms an expanded cavity to slow down the coal flow rate and eliminate stress saturation.

[0031] Based on the pressure saturation effect, the flow velocity at the bottleneck is limited; based on the principle of particle beam stabilization, the shear rate at the bottleneck increases, resulting in agglomeration. Raindrop-shaped flow divider hammers 6 are installed between the front and rear walls of the middle hopper 2 to increase the flow velocity. The shear rate at the bottleneck does not exceed the critical value, preventing blockage.

[0032] Based on practical verification, in this embodiment, a flat dome is used instead of a pointed dome for the raindrop-shaped top, and two parallel I-beams are welded to the top to increase impact resistance and reduce weld breakage. The sidewalls of the raindrop-shaped diverting hammer 6 are streamlined to reduce the generation of eddies and turbulence, improve the smooth flow of coal, and increase bottom stability.

[0033] The lower part of the raindrop-shaped diverting hammer 6 is rotatably connected to the wall of the middle hopper 2 via a fixed pivot 7; An adjusting pivot 8 is also fixedly connected to the middle of the raindrop-shaped diverter hammer 6; On the front and rear walls of the central hopper 2, corresponding to the ends of the adjusting pivot 8, there is a guide arc groove 9 that allows the ends of the adjusting pivot 8 to move within it. The two ends of the adjusting pivot 8 extend out of the front and rear side walls of the central hopper 2 through the guide arc grooves 9, and are synchronously driven and connected to the hydraulic cylinders 10 installed on the outer wall of the central hopper 2. By driving the adjusting pivot 8 to move within the guide arc grooves 9, the raindrop-shaped diverting hammer 6 rotates around the fixed pivot 7 and simultaneously changes the tilt angle of the raindrop-shaped diverting hammer 6 relative to the central hopper 2. Specifically, the two ends of the adjusting pivot 8 are hinged to the piston rods of their respective hydraulic cylinders 10. The two hydraulic cylinders 10 are connected through a hydraulic circuit and synchronously controlled by a hydraulic handle to achieve synchronous movement, thereby driving the adjusting pivot 8 to move smoothly along the guide arc grooves 9.

[0034] The guide arc groove 9 is configured such that when the adjusting pivot 8 is located at any position within the guide arc groove 9, the main body structure of the raindrop-shaped diverting hammer 6 completely covers the opening of the guide arc groove 9, preventing a large amount of material from leaking out. The stroke of the hydraulic cylinder 10 is configured to drive the adjusting pivot 8 to move 10 cm, thereby enabling precise and rapid adjustment of the width of the diversion channel. The two corners of the central hopper 2 are connected to two diversion hoppers 3 respectively. The upper ends of the two diversion hoppers 3 are fitted with two hydraulically driven baffle plates 4, which are used to completely switch or close the coal flow channel. The lower ends of the two diversion hoppers 3 are provided with discharge hopper doors that connect to the next process. The lower ends of each diversion hopper 3 are inclined with buffer guide plates 5 facing the discharge hopper door.

[0035] The normal operating status is as follows: The raw coal transportation system carries the coal flow from the conveyor belt into the upper hopper 1 of the diversion bin. At this time, the raindrop-shaped diversion hammer 6 in the middle hopper 2 remains in a neutral position or a preset position. The coal flow is diverted to two diversion hoppers 3 and enters the lower equipment through the discharge bin door. The on-duty worker listens to the sound of the coal flow falling, guards the diversion bin, and monitors the operating status.

[0036] The blockage warning status is as follows: When a blockage warning occurs, the "110 rapid adjustment method" is adopted. "1" indicates that within 1 minute, the shift leader, on-duty worker, duty officer, and control room operator ("four-in-one") complete a rapid adjustment. "10" indicates that the raindrop-shaped diverter hammer 6 is moved 10cm via hydraulic handle operation to adjust the width of the lower opening of the left and right diverter compartments, preventing random blockages. Specifically: When the operator notices that the sound of falling coal and gangue in the diversion bin changes from crisp to dull, they immediately use the KXT22.2 mine communication signal device (external unit) of the emergency broadcast system. This device, an existing piece of equipment in the mine, operates independently of the main unit. It makes an emergency call, and the shift leader promptly arrives at the diversion bin to confirm the blockage and assists the operator in making rapid adjustments. Simultaneously, the duty officer and the central control operator coordinate the emergency response to the blockage. On-site personnel operate the hydraulic handle, issuing commands to the hydraulic cylinder 10. The two hydraulic cylinders 10 operate synchronously under the guarantee of the hydraulic circuit, driving the adjusting pivot 8 to move along the guide arc groove 9. This, in turn, causes the raindrop-shaped diversion hammer 6 to rotate around the fixed pivot 7, changing its inclination angle. The streamlined side of the diversion hammer breaks up the formed coal and gangue clusters and stress arches, restoring smooth coal flow.

[0037] Comparison of this embodiment with the prior art: Under current technological conditions, the monthly maintenance cost for repairing cracks in a single diversion compartment due to vibration is approximately 5,100 yuan, including 1,500 yuan for welding rods and 3,600 yuan for labor. The monthly cost for replacing manganese steel plates due to coal flow impact is an additional 7,300 yuan, including 4,000 yuan for materials and 3,300 yuan for labor.

[0038] Based on comprehensive calculations, the replacement and maintenance cost for one diversion compartment is 12,400 yuan per month.

[0039] As the diversion silo is the bottleneck of the raw coal transportation system, blockages in it can directly lead to a complete system shutdown. According to actual investigations, the original system experienced an average of 15 blockage incidents per month, with each incident taking approximately 0.83 hours to resolve. Based on the system's transport capacity of 3500 t / h, this resulted in a monthly production impact of 43,600 tons. Considering a benefit of 500 yuan per ton, the direct economic loss is approximately 23 million yuan.

[0040] With the implementation of this proposed solution, the raw coal system has been operating safely for more than three months without any system shutdown caused by blockage of the diversion bin. Furthermore, according to feedback from daily maintenance, the maintenance of this diversion bin has become much more convenient, time-saving, and labor-saving, ensuring coal transportation volume while reducing maintenance costs, resulting in considerable economic benefits.

[0041] This embodiment fundamentally changes this situation, not only effectively eliminating congestion and enabling the system to operate continuously and stably for a long time, but also reducing the original monthly maintenance costs of up to 12,400 yuan and the production loss of 23 million yuan.

[0042] Based on comprehensive calculations, the proposed solution can generate more than 23 million yuan in comprehensive economic benefits for the mine each month, while also demonstrating significant advantages in improving equipment durability and ensuring production safety.

[0043] The scope of protection claimed by this utility model is not limited to the specific embodiments described above. Moreover, for those skilled in the art, this utility model can have various modifications and alterations. Any modifications, improvements, and equivalent substitutions made within the concept and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A diversion bin suitable for raw coal transportation, comprising a diversion bin body connected to the outlet of a conveyor belt, wherein the diversion bin body comprises an upper bin hopper (1), a middle bin hopper (2), and two diversion bins (3) connected in sequence, characterized in that, A raindrop-shaped diverting hammer (6) is installed between the front and rear walls of the central hopper (2). The lower part of the raindrop-shaped diverting hammer (6) is rotatably connected to the wall of the central hopper (2) through a fixed pivot (7). The raindrop-shaped diverter (6) is also fixedly connected to an adjustment pivot (8) in the middle. On the front and rear walls of the central hopper (2), corresponding to the end position of the adjusting pivot (8), there is a guide arc groove (9) that allows the end of the adjusting pivot (8) to move within it. The two ends of the adjusting pivot (8) extend out of the front and rear side walls of the central hopper (2) through the guide arc groove (9) and are synchronously driven and connected to the oil cylinder (10) installed on the outer wall of the central hopper (2). By driving the adjusting pivot (8) to move within the guide arc groove (9), the raindrop-shaped diverting hammer (6) rotates around the fixed pivot (7) and simultaneously changes the tilt angle of the raindrop-shaped diverting hammer (6) relative to the central hopper (2). The guide arc groove (9) is configured such that when the adjusting pivot (8) is located at any position in the guide arc groove (9), the main body structure of the raindrop-shaped diverting hammer (6) completely covers the opening of the guide arc groove (9) to prevent a large amount of material from leaking out. The two corners of the central hopper (2) are connected to two diversion hoppers (3) respectively. The upper ends of the two diversion hoppers (3) are fitted with two hydraulically driven baffle plates (4). The lower ends of the two diversion hoppers (3) are provided with discharge hopper doors that connect to the next process.

2. A diversion bin suitable for raw coal transportation according to claim 1, characterized in that: Each diversion hopper (3) has a buffer guide plate (5) installed at its lower end facing the discharge hopper door.

3. A diversion bin suitable for raw coal transportation according to claim 1, characterized in that: The two ends of the adjustment pivot (8) are hinged to the piston rods of their respective oil cylinders (10). The two oil cylinders (10) are connected through a hydraulic circuit to achieve synchronous movement, so as to drive the adjustment pivot (8) to move smoothly along the guide arc groove (9).

4. A diversion bin suitable for raw coal transportation according to claim 1, characterized in that: The inner surface of the diversion chamber is covered with wear-resistant plates.

5. A diversion bin suitable for raw coal transportation according to claim 1, characterized in that: The upper hopper (1) has an inclined surface facing the conveyor belt outlet.

6. A diversion bin suitable for raw coal transportation according to claim 1, characterized in that: The top of the raindrop-shaped diverting hammer (6) is a flat dome structure, and an I-beam is reinforced on the flat dome structure. The sidewall of the raindrop-shaped diverting hammer (6) is streamlined.

7. A diversion bin suitable for raw coal transportation according to claim 1, characterized in that: The interior of the diversion chamber is equipped with a buffer grid located in the coal flow impact zone.

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