Feeder device with quantitative feeding structure

Abstract

The invention relates to the technical field of coal slurry preparation, in particular to a feeder device with a quantitative feeding structure, which comprises a slack coal surge bunker, an electro-hydraulic bulkhead gate main body, a blanking hopper, a material conveying belt, a baffle plate, a mounting assembly, a fixed column, a spring and a support rod, the electro-hydraulic bulkhead gate main body is arranged below the slack coal surge bunker; a blanking hopper is arranged below the electro-hydraulic bulkhead gate body, baffles are symmetrically arranged on the bottom face of the blanking hopper, two sets of baffles are symmetrically arranged, mounting assemblies are arranged on one sides of the baffles, two sets of fixing columns are symmetrically arranged on the outer side of the blanking hopper, springs are arranged at one ends of the fixing columns, and supporting rods are arranged at the other ends of the springs. The supporting rod is arranged on the bottom face of the baffle, and a material conveying belt is arranged below the discharging hopper. By limiting the size of the coal falling channel, coal flow is controlled to fall down uniformly, scattering of materials is avoided, dust pollution to the workshop environment is reduced, the labor cost is saved, and therefore the practical value of the device is effectively increased.

Description

Technical Field

[0001] The invention relates to the technical field of coal slurry preparation, and in particular to a feeder device with a quantitative feeding structure. Background Art

[0002] The quantitative feeder is a device that measures the amount of coal fed during the coal slurry preparation process. During the current production operation of the quantitative feeder, due to the narrow width of the quantitative feeder conveyor belt and the low conveyor belt apron, the quantitative feeder leaks coal. The amount of coal leakage is about 200 kg per hour, which accounts for a large proportion of the coal fed. It requires special personnel to frequently clean it during operation, wasting manpower and material resources.

[0003] Therefore, in view of the fact that existing quantitative feeders have coal leakage problems, which affects production costs, a feeder device with a quantitative feeding structure can be designed. By limiting the size of the coal falling channel, the coal flow can be controlled to fall evenly, thus avoiding the spillage of materials, reducing dust pollution in the workshop environment, saving personnel costs, and effectively enhancing the practical value of the device. Summary of the Invention

[0004] In order to overcome the problem that most quantitative feeders leak coal during production and operation, the amount of coal leakage accounts for a large proportion of the coal fed, causing great pollution to the surrounding environment. Special personnel are required to frequently clean them during operation, wasting manpower and material resources.

[0005] The technical solution of the present invention is: a feeder device with a quantitative feeding structure, including a final coal buffer bin, an electro-hydraulic flat gate body, an opening and closing assembly, a drop hopper, a feed conveyor belt, a coal scraping assembly, a baffle, an installation assembly, a fixed column, a spring, a telescopic rod and a support rod. The electro-hydraulic flat gate body is arranged below the final coal buffer bin, the opening and closing assembly is arranged on the outside of the electro-hydraulic flat gate body, the coal scraping assembly is arranged on the inside of the final coal buffer bin, the drop hopper is arranged below the electro-hydraulic flat gate body, the bottom surface of the drop hopper is provided with a baffle, a mounting assembly is provided on one side of the baffle, a fixed column is provided on the outside of the fixed column, a spring is provided on the outside of the fixed column, a telescopic rod is provided on the outside of the fixed column, a support rod is provided on the other end of the spring, and a feed conveyor belt is provided below the drop hopper.

[0006] Preferably, a final coal buffer bin is provided to receive the coal, and the bottom surface of the final coal buffer bin is blocked by the electro-hydraulic flat gate body. When the coal in the final coal buffer bin reaches a certain level, the electro-hydraulic flat gate body is flexibly opened and closed by the opening and closing assembly. The electro-hydraulic flat gate body is opened to connect the final coal buffer bin with the drop hopper, so that the coal in the final coal buffer bin falls to the bottom of the drop hopper. The coal remaining on the electro-hydraulic flat gate body is scraped off by the coal scraping assembly. The baffle is installed by the installation assembly. The passage size of the drop opening at the bottom of the drop hopper is limited by the two sets of baffles. The fixed column fixes the spring position, and the support rod is fixed through the spring connection. The support rod is used to support the baffle, and the telescopic spring adjusts the height of the support rod, thereby controlling the opening and closing size of the two sets of baffles. At the same time, the support rod is guided by the telescopic rod to prevent the support rod from being separated from the bottom of the baffle. The coal falls from the drop port at the bottom of the drop hopper to the feed conveyor belt, and is transported to the next processing unit through the feed conveyor belt, thereby controlling the uniform fall of the coal flow, avoiding the spillage of materials, reducing dust pollution in the workshop environment, saving personnel costs, and enhancing the practical value of the device.

[0007] Preferably, two groups of baffles are symmetrically arranged, two groups of fixed columns are symmetrically arranged, the telescopic rod is arranged on the inner side of the spring, the outer telescopic end of the telescopic rod is fixedly connected to the support rod, and the support rod is arranged on the bottom surface of the baffle.

[0008] Preferably, the opening and closing assembly includes an electro-hydraulic flat gate platform, a through groove, a slide, an electro-hydraulic flat gate motor and a driving guide rod. The bottom surface of the final coal buffer bin is provided with an electro-hydraulic flat gate platform, a through groove is provided on one side of the electro-hydraulic flat gate platform, a slide is provided on the inner side of the electro-hydraulic flat gate platform, an electro-hydraulic flat gate motor is provided on the outer side of the electro-hydraulic flat gate platform, and a driving guide rod is provided on the inner side of the slide.

[0009] Preferably, the through slot is interconnected with the final coal buffer bin and the drop hopper, the slide slot is interconnected with the through slot, the electro-hydraulic flat gate body is arranged on the inner side of the slide slot, two groups of driving guide rods are symmetrically arranged, the output end of the electro-hydraulic flat gate motor is interconnected with the driving guide rod, and the electro-hydraulic flat gate body and the driving guide rod are slidably connected to each other.

[0010] Preferably, the mounting assembly includes a clamp and a threaded hole. A clamp is provided on one side of the bottom surface of the hopper, and two groups of clamps are symmetrically provided. The clamp is provided on one side of the spring. Threaded holes are provided on one side of the clamp and the hopper, and two groups of threaded holes are symmetrically provided.

[0011] Preferably, the mounting assembly further includes bolts and hinges, a bolt is provided on the inner side of the threaded hole, the hopper and the clamp are threadedly connected to the bolt, a hinge is provided on one side of the clamp, and the hinge is fixedly connected to one side of the baffle.

[0012] Preferably, the coal scraping assembly includes a coal scraping plate, and two groups of coal scraping plates are symmetrically arranged at the inner bottom end of the final coal buffer bin, and the bottom surfaces of the coal scraping plates are arranged in close contact with the upper surface of the electro-hydraulic flat gate body.

[0013] Beneficial effects of the present invention: During feeding, the crushed coal first enters the final coal buffer bin. When the coal in the final coal buffer bin reaches a certain level, the main body of the electro-hydraulic flat gate is opened to allow the coal in the final coal buffer bin to fall to the bottom of the hopper. At this time, the spring on the fixed column begins to work, and the telescopic spring drives the telescopic rod to extend to adjust the height of the support rod. The support rod is used to limit the opening and closing size of the two sets of baffles, so that the two sets of baffles limit the size of the passage of the drop port at the bottom of the hopper. The coal falls from the passage between the two sets of baffles to the feed conveyor belt, and is transported to the next processing unit through the feed conveyor belt to solve the problem of coal leakage in most quantitative feeders. The amount of coal leakage accounts for a large proportion of the coal feeding amount, and special personnel are required to frequently clean it during operation, wasting manpower and material resources, thereby enhancing the practical value of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Shown is a schematic diagram of the three-dimensional structure of a feeder device with a quantitative feeding structure of the present invention; Figure 2 Shown is a schematic diagram of the three-dimensional structure of the opening and closing components of a feeder device with a quantitative feeding structure of the present invention; Figure 3 Shown is a schematic diagram of the cross-sectional three-dimensional structure of the opening and closing components of a feeder device with a quantitative feeding structure of the present invention; Figure 4 Shown is a schematic diagram of the three-dimensional structure of a hopper of a feeder device with a quantitative feeding structure of the present invention; Figure 5 Shown is a schematic diagram of the three-dimensional structure of a coal scraping assembly of a feeder device with a quantitative feeding structure according to the present invention. Explanation of the accompanying symbols: 1. Final coal buffer bin; 101. Coal scraper; 2. Electro-hydraulic flat gate body; 201. Electro-hydraulic flat gate platform; 202. Through groove; 203. Slide; 204. Electro-hydraulic flat gate motor; 205. Driving guide rod; 3. Drop hopper; 301. Clamp; 302. Threaded hole; 303. Bolt; 304. Hinge; 4. Baffle; 5. Fixed column; 6. Spring; 7. Telescopic rod; 8. Support rod; 9. Feed conveyor belt. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and examples.

[0016] Example 1 See also Figure 1 and Figure 2 The present invention provides an embodiment: a feeder device with a quantitative feeding structure, including a final coal buffer bin 1, an electro-hydraulic flat gate body 2, an opening and closing assembly, a drop hopper 3, a feeding conveyor belt 9, a baffle 4, a mounting assembly, a fixing column 5, a spring 6, a telescopic rod 7 and a support rod 8. The electro-hydraulic flat gate body 2 is provided below the final coal buffer bin 1, an opening and closing assembly is provided on the outside of the electro-hydraulic flat gate body 2, a drop hopper 3 is provided below the electro-hydraulic flat gate body 2, and the bottom surface of the drop hopper 3 A baffle 4 is provided, and two groups of baffles 4 are symmetrically provided. A mounting assembly is provided on one side of the baffle 4. A fixed column 5 is provided on the outside of the dropping hopper 3, and two groups of fixed columns 5 are symmetrically provided. A spring 6 is provided on the outside of the fixed column 5, and a telescopic rod 7 is provided on the outside of the fixed column 5. The telescopic rod 7 is provided on the inside of the spring 6, and a support rod 8 is provided at the other end of the spring 6. The outer telescopic end of the telescopic rod 7 is fixedly connected to the support rod 8, and the support rod 8 is provided on the bottom surface of the baffle 4. A feeding conveyor belt 9 is provided below the dropping hopper 3.

[0017] See also Figure 2 and Figure 3 In this embodiment, the opening and closing components include an electro-hydraulic flat gate platform 201, a through slot 202, a slide 203, an electro-hydraulic flat gate motor 204 and a driving guide rod 205. The bottom surface of the final coal buffer bin 1 is provided with an electro-hydraulic flat gate platform 201, a through slot 202 is provided on one side of the electro-hydraulic flat gate platform 201, and the through slot 202 is interconnected with the final coal buffer bin 1 and the drop hopper 3. A slide 203 is provided on the inner side of the electro-hydraulic flat gate platform 201, and the slide 203 is interconnected with the through slot 202. The electro-hydraulic flat gate body 2 is provided on the inner side of the slide 203, and the electro-hydraulic flat gate motor 204 is provided on the outer side of the electro-hydraulic flat gate platform 201. The slide 203 is interconnected with the through slot 202. 3 is provided with a driving guide rod 205 on the inner side, and two groups of driving guide rods 205 are symmetrically provided. The output end of the electro-hydraulic flat gate motor 204 is connected to the driving guide rod 205, and the electro-hydraulic flat gate body 2 and the driving guide rod 205 are slidably connected to each other. The electro-hydraulic flat gate platform 201 is used to support and fix the final coal buffer bin 1, and the through groove 202 is used to ensure that the final coal buffer bin 1 and the drop hopper 3 are connected to each other. The moving range of the electro-hydraulic flat gate body 2 is clarified by the slide groove 203, and the electro-hydraulic flat gate motor 204 is used to control the operation of the driving guide rod 205. The electro-hydraulic flat gate body 2 is driven to move by the driving guide rod 205, thereby realizing the effect of flexible opening and closing of the electro-hydraulic flat gate body 2.

[0018] See also Figure 4In this embodiment, the mounting assembly includes a clamping plate 301, a threaded hole 302, a bolt 303 and a hinge 304. A clamping plate 301 is provided on one side of the bottom surface of the drop hopper 3. The clamping plate 301 is symmetrically provided in two groups. The clamping plate 301 is provided on one side of the spring 6. A threaded hole 302 is provided on one side of the drop hopper 3. The threaded hole 302 is symmetrically provided in two groups. A bolt 303 is provided on the inner side of the threaded hole 302. The clamping plate 301 and the bolt 303 are threadedly connected to each other. 3 is threadedly connected to the bolt 303, a hinge 304 is provided on one side of the splint 301, and the hinge 304 is fixedly connected to one side of the baffle 4. The installation position of the bolt 303 is clearly defined by the threaded hole 302, and the splint 301 is locked and fixed with the bolt 303, and the splint 301 is flexibly installed on the bottom of the hopper 3, and the baffle 4 is fixed with the splint 301. The hinge 304 ensures that the baffle 4 and the splint 301 are rotatably connected to each other, ensuring that the two groups of baffles 4 can open and close normally, thereby achieving the effect of convenient disassembly and replacement of the baffle 4.

[0019] During feeding, the bottom of the final coal buffer bin 1 is blocked by the electro-hydraulic flat gate body 2 in the electro-hydraulic flat gate platform 201. At the same time, the clamping plate 301 is placed on one side of the hopper 3, and the bolts 303 are screwed into the threaded holes 302 in sequence to fix the position of the clamping plate 301. The crushed coal first enters the final coal buffer bin 1 for storage; When the coal in the final coal buffer bin 1 reaches a certain level, the electro-hydraulic flat gate motor 204 drives the driving guide rod 205 to operate, and the driving guide rod 205 drives the electro-hydraulic flat gate body 2 to move in the slide 203, and the electro-hydraulic flat gate body 2 moves to open the through slot 202; Subsequently, the coal in the final coal buffer bin 1 falls to the bottom of the hopper 3 through the through groove 202, and the two groups of baffles 4 are rotated open by the hinge 304. At this time, the spring 6 on the fixed column 5 extends, driving the telescopic rod 7 to extend synchronously. The support rod 8 at one end of the spring 6 supports the baffle 4, so that the passage of the two groups of baffles 4 is limited to a certain range. The coal falls through the passage to the feed conveyor 9, and the coal is transported to the next processing unit through the feed conveyor 9.

[0020] Example 2 See also Figure 1 and Figure 2The present invention provides an embodiment: a feeder device with a quantitative feeding structure, including a final coal buffer bin 1, an electro-hydraulic flat gate body 2, an opening and closing assembly, a drop hopper 3, a feeding conveyor belt 9, a coal scraping assembly, a baffle 4, a mounting assembly, a fixing column 5, a spring 6, a telescopic rod 7 and a support rod 8. The electro-hydraulic flat gate body 2 is provided below the final coal buffer bin 1, the opening and closing assembly is provided on the outside of the electro-hydraulic flat gate body 2, the coal scraping assembly is provided on the inside of the final coal buffer bin 1, and the drop hopper is provided below the electro-hydraulic flat gate body 2. The hopper 3 and the bottom surface of the dropping hopper 3 are provided with a baffle 4, and the baffle 4 is symmetrically arranged in two groups. A mounting assembly is provided on one side of the baffle 4. A fixed column 5 is provided on the outside of the dropping hopper 3, and the fixed column 5 is symmetrically arranged in two groups. A spring 6 is provided on the outside of the fixed column 5, and a telescopic rod 7 is provided on the outside of the fixed column 5. The telescopic rod 7 is provided on the inside of the spring 6, and a support rod 8 is provided on the other end of the spring 6. A feeding conveyor belt 9 is provided below the dropping hopper 3, and the outer telescopic end of the telescopic rod 7 is fixedly connected to the support rod 8, and the support rod 8 is provided on the bottom surface of the baffle 4.

[0021] See also Figure 2 and Figure 3 In this embodiment, the opening and closing components include an electro-hydraulic flat gate platform 201, a through slot 202, a slide 203, an electro-hydraulic flat gate motor 204 and a driving guide rod 205. The bottom surface of the final coal buffer bin 1 is provided with an electro-hydraulic flat gate platform 201, a through slot 202 is provided on one side of the electro-hydraulic flat gate platform 201, and the through slot 202 is interconnected with the final coal buffer bin 1 and the drop hopper 3. A slide 203 is provided on the inner side of the electro-hydraulic flat gate platform 201, and the slide 203 is interconnected with the through slot 202. The electro-hydraulic flat gate body 2 is provided on the inner side of the slide 203, and the electro-hydraulic flat gate motor 204 is provided on the outer side of the electro-hydraulic flat gate platform 201. The slide 203 is interconnected with the through slot 202. 3 is provided with a driving guide rod 205 on the inner side, and two groups of driving guide rods 205 are symmetrically provided. The output end of the electro-hydraulic flat gate motor 204 is connected to the driving guide rod 205, and the electro-hydraulic flat gate body 2 and the driving guide rod 205 are slidably connected to each other. The electro-hydraulic flat gate platform 201 is used to support and fix the final coal buffer bin 1, and the through groove 202 is used to ensure that the final coal buffer bin 1 and the drop hopper 3 are connected to each other. The moving range of the electro-hydraulic flat gate body 2 is clarified by the slide groove 203, and the electro-hydraulic flat gate motor 204 is used to control the operation of the driving guide rod 205. The electro-hydraulic flat gate body 2 is driven to move by the driving guide rod 205, thereby realizing the effect of flexible opening and closing of the electro-hydraulic flat gate body 2.

[0022] See also Figure 4 and Figure 5In this embodiment, the mounting assembly includes a clamping plate 301, a threaded hole 302, a bolt 303 and a hinge 304. A clamping plate 301 is provided on one side of the bottom surface of the drop hopper 3. Two groups of clamping plates 301 are symmetrically provided. The clamping plate 301 is provided on one side of the spring 6. A threaded hole 302 is provided on one side of the clamping plate 301. A threaded hole 302 is provided on one side of the drop hopper 3. Two groups of threaded holes 302 are symmetrically provided. Bolts 303 are provided on the inner side of the threaded hole 302. The clamping plate 301 and the bolt 303 are threadedly connected to each other. The drop hopper 3 and the bolt 303 are threadedly connected to each other. A hinge 304 is provided on one side of the clamping plate 301. The hinge 304 is fixedly connected to one side of the baffle 4. The bolts 303 are clearly fixed through the threaded holes 302. The installation position is to use bolts 303 to lock and fix the clamping plate 301, and the clamping plate 301 is flexibly installed on the bottom of the hopper 3. The baffle 4 is fixed with the clamping plate 301, and the hinge 304 is used to ensure that the baffle 4 and the clamping plate 301 are rotatably connected to each other to ensure that the two groups of baffles 4 open and close normally, thereby achieving the effect of convenient disassembly and replacement of the baffle 4; the coal scraping assembly includes a coal scraping plate 101, and two groups of coal scraping plates 101 are symmetrically arranged at the inner bottom end of the last coal buffer bin 1. The bottom surface of the coal scraping plate 101 is arranged tightly against the upper surface of the electro-hydraulic flat gate body 2. When the electro-hydraulic flat gate body 2 is opened and closed, the coal material remaining on the surface of the electro-hydraulic flat gate body 2 is scraped off by the coal scraping plate 101 to prevent the coal material from entering the chute 203, thereby ensuring sufficient feeding.

[0023] During feeding, the bottom of the final coal buffer bin 1 is blocked by the electro-hydraulic flat gate body 2 in the electro-hydraulic flat gate platform 201. At the same time, the clamping plate 301 is placed on one side of the hopper 3, and the bolts 303 are screwed into the threaded holes 302 in sequence to fix the position of the clamping plate 301. The crushed coal first enters the final coal buffer bin 1 for storage; When the coal in the final coal buffer bin 1 reaches a certain level, the electro-hydraulic flat gate motor 204 drives the driving guide rod 205 to operate, and the driving guide rod 205 drives the electro-hydraulic flat gate body 2 to move in the chute 203, moving the electro-hydraulic flat gate body 2 to open the through slot 202. At the same time, in this embodiment, the scraper 101 is used to scrape off the coal remaining on the surface of the electro-hydraulic flat gate body 2 to prevent the coal from entering the chute 203, ensuring sufficient feeding. Subsequently, the coal in the final coal buffer bin 1 falls to the bottom of the hopper 3 through the through groove 202, and the two groups of baffles 4 are rotated open by the hinge 304. At this time, the spring 6 on the fixed column 5 extends, driving the telescopic rod 7 to extend synchronously. The support rod 8 at one end of the spring 6 supports the baffle 4, so that the passage of the two groups of baffles 4 is limited to a certain range. The coal falls through the passage to the feed conveyor 9, and the coal is transported to the next processing unit through the feed conveyor 9.

[0024] After the material in the hopper 3 is filled, the hopper 3 is opened and closed, and the hopper 3 is opened, the hopper 3 is opened, and the hopper 3 is opened, so that the material in the hopper 1 is connected to the hopper 3, and the material in the hopper 3 is opened and closed.

[0025] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A feeder device with a quantitative feeding structure, comprising a final coal buffer bin (1), an electro-hydraulic flat gate body (2), an opening and closing assembly, a drop hopper (3), and a feeding conveyor belt (9), characterized in that: The invention also includes a coal scraping assembly, a baffle (4), a mounting assembly, a fixed column (5), a spring (6), a telescopic rod (7) and a support rod (8); an electro-hydraulic flat gate body (2) is provided below the final coal buffer bin (1); an opening and closing assembly is provided on the outside of the electro-hydraulic flat gate body (2); a coal scraping assembly is provided on the inside of the final coal buffer bin (1); a drop hopper (3) is provided below the electro-hydraulic flat gate body (2); a baffle (4) is provided on the bottom surface of the drop hopper (3); a mounting assembly is provided on one side of the baffle (4); a fixed column (5) is provided on the outside of the fixed column (5); a telescopic rod (7) is provided on the outside of the fixed column (5); a support rod (8) is provided on the other end of the spring (6); and a feeding conveyor belt (9) is provided below the drop hopper (3).

2. A feeder device with a quantitative feeding structure according to claim 1, characterized in that: Two groups of baffles (4) are symmetrically arranged, two groups of fixed columns (5) are symmetrically arranged, the telescopic rod (7) is arranged on the inner side of the spring (6), the outer telescopic end of the telescopic rod (7) is fixedly connected to the support rod (8), and the support rod (8) is arranged on the bottom surface of the baffle (4).

3. The feeder device with a quantitative feeding structure according to claim 1, characterized in that: The opening and closing assembly comprises an electro-hydraulic flat gate platform (201), a through slot (202), a slide (203), an electro-hydraulic flat gate motor (204) and a driving guide rod (205). The bottom surface of the final coal buffer bin (1) is provided with the electro-hydraulic flat gate platform (201), a through slot (202) is provided on one side of the electro-hydraulic flat gate platform (201), a slide (203) is provided on the inner side of the electro-hydraulic flat gate platform (201), an electro-hydraulic flat gate motor (204) is provided on the outer side of the electro-hydraulic flat gate platform (201), and a driving guide rod (205) is provided on the inner side of the slide (203).

4. A feeder device with a quantitative feeding structure according to claim 3, characterized in that: The through slot (202) is interconnected with the final coal buffer bin (1) and the drop hopper (3); the chute (203) is interconnected with the through slot (202); the electro-hydraulic flat gate body (2) is arranged on the inner side of the chute (203); two groups of driving guide rods (205) are symmetrically arranged; the output end of the electro-hydraulic flat gate motor (204) is connected to the driving guide rod (205); and the electro-hydraulic flat gate body (2) and the driving guide rod (205) are slidably connected to each other.

5. The feeder device with a quantitative feeding structure according to claim 4, characterized in that: The mounting assembly includes a clamping plate (301) and a threaded hole (302). The clamping plate (301) is provided on one side of the bottom surface of the drop hopper (3). The clamping plates (301) are symmetrically provided in two groups. The clamping plates (301) are provided on one side of the spring (6). The threaded holes (302) are provided on one side of the clamping plate (301) and the drop hopper (3). The threaded holes (302) are symmetrically provided in two groups.

6. The feeder device with a quantitative feeding structure according to claim 1, characterized in that: The mounting assembly further comprises a bolt (303) and a hinge (304). The bolt (303) is provided on the inner side of the threaded hole (302). The hopper (3) and the clamping plate (301) are threadedly connected to the bolt (303). A hinge (304) is provided on one side of the clamping plate (301). The hinge (304) is fixedly connected to one side of the baffle (4).

7. The feeder device with a quantitative feeding structure according to claim 1, characterized in that: The coal scraping assembly includes a coal scraping plate (101). Two groups of coal scraping plates (101) are symmetrically arranged at the inner bottom end of the final coal buffer bin (1). The bottom surfaces of the coal scraping plates (101) are arranged in close contact with the upper surface of the electro-hydraulic flat gate body (2).

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