Hydraulic support for fully-mechanized mining and throwing type waste rock filling

Abstract

The present invention provides a fully-mechanized mining gangue filling hydraulic support, which changes the installation mode of the bottom unloading scraper conveyor at the rear of the traditional fully-mechanized mining gangue filling hydraulic support from a hanging type to a supporting type. The degree of freedom of the scraper conveyor on the supporting platform is greatly increased. There is no chain link connection between the scraper conveyor and the hydraulic support, and it is not affected by the width of the working face, thereby increasing the width of the fully-mechanized mining gangue filling working face. At the same time, the structure and size of the gangue throwing belt conveyor are optimized, the gangue filling efficiency and the filling top connection rate are improved, the empty top distance of the frame tail filling is reduced, and the gangue throwing inclination, speed, height and distance are improved.

Description

Technical Field

[0001] The invention relates to the field of coal mine filling mining, in particular to a fully mechanized mining and throwing type gangue filling hydraulic support. Background Art

[0002] As a green coal mining technology, gangue filling mining is gaining increasing attention in the context of ecological civilization. Gangue filling mining can fill gangue underground, reducing the amount of gangue piled up and occupied on the surface, and avoiding environmental deterioration caused by gangue spontaneous combustion, rain, mudification, etc. At the same time, gangue filling mining can also reduce surface subsidence, prevent or reduce surface water loss, and protect the surface ecology, which is of great significance to promoting the construction of ecological civilization. Gangue filling mining is currently commonly used in tunnel filling and fully mechanized mining filling. Tunnel filling uses a belt gangue thrower to fill gangue into abandoned tunnels or excavated tunnels; fully mechanized mining gangue filling uses a bottom-discharging scraper conveyor with a gangue hole hung behind the hydraulic support, and the gangue is pushed into the goaf by a compacting mechanism to make it dense. The tunnel type gangue filling is affected by the excavation speed, and the filling capacity is small, with an annual filling volume of about 100,000 tons; the hydraulic support for comprehensive mining gangue filling is connected to the bottom unloading scraper conveyor through a short hanging chain between each frame, which is equivalent to the tail of each hydraulic support being tied together, and the flexibility is greatly affected. If the working face is inclined and sloped, the movement of the filling hydraulic support will be affected, and it is easy for the hanging chain to break, the scraper chain to get stuck, and the bottom unloading scraper conveyor to be damaged, thereby affecting the filling and coal mining. Therefore, the width of the working face is relatively small, generally 80-100m; the patent number is ZL202020843970.9, and the hydraulic support for comprehensive mining gangue filling has some shortcomings, which are mainly manifested in: First, it still uses a hanging chain to lift The rear-mounted bottom-discharging scraper conveyor cannot be used for long filling working faces. Secondly, the conveyor belt of the belt conveyor is straight and has no slope change, which means that the belt conveyor cannot be tilted too much. If it is too large, the waste rock leaking onto the conveyor belt will easily slide off. More importantly, if the inclination angle is too small, the waste rock cannot be connected to the top in time. In other words, the distance between the tail of the hydraulic support and the waste rock filling connection point is large. In the case of poor roof stability, the roof is likely to collapse and compact the space behind the support, causing the filling space to disappear and the waste rock filling to be unable to be completed, which limits the scope of application of the hydraulic support. Thirdly, the belt conveyor is long, 2-3 meters long, which is not conducive to the manufacture and stress of the hydraulic support. Fourthly, the belt conveyor is equipped with rollers, which are easily damaged by high-speed rotation, making it difficult to repair the rear of the hydraulic support, so the belt speed cannot be too high. Therefore, it is necessary to develop a waste rock filling hydraulic support that can adapt to long working faces and efficiently fill. Summary of the Invention

[0003] In view of the problems in the prior art that the hydraulic support for fully-mechanized gangue filling is prone to chain breakage, scraper chain jamming, bottom unloading scraper conveyor damage when encountering conditions such as working face inclination and slope change, thus making it impossible to extend the working face, and the problem that the gangue throwing belt cannot timely connect the gangue to the top, thus affecting the scope of application, the present invention provides a fully-mechanized gangue filling hydraulic support, which increases the width of the coal mining and filling working face, improves the gangue filling efficiency and filling connection rate, reduces the filling empty top distance at the tail of the frame, improves the inclination, speed, height and distance of the gangue throwing, and at the same time does not affect the mining speed, reduces the size of the gangue throwing belt conveyor, optimizes the structure of the gangue throwing belt conveyor, and improves the reliability of the gangue throwing belt conveyor.

[0004] The present invention is achieved through the following technical solutions:

[0005] The fully-mechanized mining support and throwing type gangue filling hydraulic support includes a front top beam, a rear tail beam, a base, and columns and four connecting rods connecting the front top beam, rear tail beam and the base. One end of the front top beam is connected to the rear tail beam, and the base is located below the front top beam and the rear tail beam. One end of the base is connected to the support and throwing type gangue filling device.

[0006] The supporting and throwing type gangue filling device includes a rear seat, a gangue retaining lifting platform, a bottom unloading scraper conveyor and a gangue throwing belt conveyor; the front end of the rear seat is connected to the base; the gangue retaining lifting platform is assembled on the rear seat, and the bottom unloading scraper conveyor and the gangue throwing belt conveyor are installed on the gangue retaining lifting platform;

[0007] The slag retaining lifting platform includes a platform and a lifting end. The platform is horizontally cantilevered on the lifting end toward the column. The lifting end is assembled on the rear seat. The bottom of the platform is connected to the rear seat through a cylinder. The lifting end drives the platform up and down through the cylinder. The platform is provided with a material leakage port and a skylight window in sequence. The bottom unloading scraper conveyor is correspondingly assembled above the material leakage port to realize the function of the platform supporting the bottom unloading scraper conveyor. A funnel is provided at one end of the slag throwing belt conveyor, and one end of the funnel on the slag throwing belt conveyor is suspended below the material leakage port, and the other end passes through the skylight window and is fixedly connected to the platform to realize the belt throwing of slag.

[0008] Preferably, the gangue belt conveyor further comprises a frame, a head roller, a tail roller, a belt pressing and redirecting roller, a conveyor belt and a hydraulic motor;

[0009] The frame is set at an angle, and the high end of the frame passes through the skylight window and is fixedly connected to the platform. The low end of the frame is located below the material leakage port. The head roller, belt pressing and redirecting roller and tail roller are arranged on the low end, middle end and high end of the frame in sequence. The conveyor belt is arranged around the head roller and the tail roller to realize the connection between the two ends of the conveyor belt; the belt pressing and redirecting roller is located on the upper part of the conveyor belt and is in close contact with the conveyor belt to realize the steering of the conveyor belt from the horizontal section to the inclined section along the low end to the middle of the high end. The funnel is set in the horizontal section of the conveyor belt and is fixedly connected to the frame through an inclined beam; the hydraulic motor is assembled and connected to the end of the head roller.

[0010] Furthermore, a plurality of herringbone-shaped protrusions or pits are provided on the surface of the conveyor belt.

[0011] Furthermore, the cylinder diameters of the head roller and the tail roller are larger than the cylinder diameter of the belt pressing and redirecting roller, and the cylinder diameters of the head roller and the tail roller are equal.

[0012] Furthermore, the diameters of the two ends of the cylinder of the belt pressing and redirecting roller are larger than the diameter of the middle part of the cylinder.

[0013] Preferably, a first limit block and a second limit block are provided on the platform, the first limit block is arranged at the front end of the platform, the second limit block is arranged on both sides of the platform along one end of the leakage port, and the bottom unloading scraper conveyor is arranged above the leakage port between the first limit block and the second limit block.

[0014] Furthermore, a waste rock hole with controllable switch is provided in the scraper trough of the bottom-discharging scraper conveyor. The waste rock hole is located above the material leakage port, and the distance between the first limit block and the second limit block is greater than 2 times the width of the scraper trough.

[0015] Furthermore, the cross-sectional area of ​​the material passing through the gangue hole is smaller than the cross-sectional area of ​​the material passing through the material leakage port, and the cross-sectional area of ​​the material passing through the material leakage port is smaller than the cross-sectional area of ​​the material passing through the funnel.

[0016] Furthermore, the gangue hole is provided with a sealing plate with an oil cylinder.

[0017] Preferably, a telescopic beam is provided at the tail of the rear tail beam.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] The present invention provides a fully-mechanized mining gangue filling hydraulic support, which changes the installation mode of the bottom unloading scraper conveyor at the rear of the traditional fully-mechanized mining gangue filling hydraulic support from a hanging type to a supporting type. The degree of freedom of the scraper conveyor on the supporting platform is greatly increased. There is no chain link connection between the scraper conveyor and the hydraulic support, and it is not affected by the width of the working face, thereby increasing the width of the fully-mechanized mining gangue filling working face. At the same time, the structure and size of the gangue throwing belt conveyor are optimized, the gangue filling efficiency and the filling top connection rate are improved, the empty top distance of the frame tail filling is reduced, and the gangue throwing inclination, speed, height and distance are improved.

[0020] Furthermore, the throwing away gangue belt conveyor also includes a frame, a head roller, a tail roller, a pressure belt redirecting roller, a conveyor belt and a hydraulic motor. The frame is tilted, and the high end of the frame passes through the skylight window and is fixedly connected to the platform, and the low end of the frame is located below the leakage port. The present invention changes the structure of the throwing away gangue belt conveyor and adopts a conveyor belt pressure roller to transform the upper layer of the conveyor belt from horizontal to inclined, thereby increasing the inclination angle of the throwing end, reducing the filling empty top distance of the frame tail, and improving the application range of the filling hydraulic support. At the same time, the size of the throwing away gangue belt conveyor is reduced, the length is reduced to 1.2-1.5m, and multiple rollers are removed, so that the belt speed can be increased to about 13m / s, making the throwing away gangue speed, height and distance greater, and the filling efficiency and top connection rate higher.

[0021] Furthermore, a plurality of herringbone-shaped protrusions or pits are provided on the surface of the conveyor belt to effectively increase the friction resistance.

[0022] Furthermore, the cylinder diameters of the head roller and the tail roller are larger than the cylinder diameter of the belt pressing and redirecting roller, and the cylinder diameters of the head roller and the tail roller are equal, which facilitates the transformation of the upper layer of the conveyor belt from horizontal to inclined, increases the inclination angle of the throwing end, reduces the empty top distance of the tail filling, and improves the application range of the filling hydraulic support.

[0023] Furthermore, a first limit block and a second limit block are provided on the platform to limit the width of the bottom-discharging scraper conveyor placed on the platform, and the distance between the first limit block and the second limit block is greater than 2 times the width of the scraper groove set on the bottom-discharging scraper conveyor, so that the degree of freedom of the scraper conveyor on the supporting platform is greatly increased and is not affected by the width of the working face, thereby increasing the width of the comprehensive mining gangue filling working face.

[0024] Furthermore, the cross-sectional area of ​​the material passing through the gangue hole is smaller than the cross-sectional area of ​​the material passing through the leakage port, and the cross-sectional area of ​​the material passing through the leakage port is smaller than the cross-sectional area of ​​the material passing through the funnel, thereby improving the material passing rate and facilitating the passage of the material.

[0025] Furthermore, the gangue hole is provided with a sealing plate with an oil cylinder for controlling the closing and opening of the gangue hole.

[0026] Furthermore, a telescopic beam is provided at the tail of the rear tail beam, which can increase the length of the rear tail beam and improve the application range of the filling hydraulic support. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional schematic diagram of the fully mechanized mining support and gangue filling hydraulic support structure of the present invention;

[0028] Figure 2 This is a three-dimensional schematic diagram of a fully mechanized mining and throwing type gangue filling hydraulic support with a bottom-unloading scraper conveyor according to the present invention;

[0029] Figure 3 It is a three-dimensional schematic diagram of the fully-mechanized mining supporting and throwing filling device of the fully-mechanized mining supporting and throwing gangue filling hydraulic support of the present invention;

[0030] Figure 4 This is a three-dimensional schematic diagram of the rear seat and the gangue-blocking lifting platform of the fully-mechanized mining and throwing type gangue filling hydraulic support of the present invention;

[0031] Figure 5 It is a three-dimensional schematic diagram of the gangue throwing belt conveyor of the fully mechanized gangue throwing type gangue filling hydraulic support of the present invention;

[0032] Figure 6 This is a three-dimensional schematic diagram of the bottom unloading scraper conveyor of the fully mechanized mining and throwing type gangue filling hydraulic support of the present invention.

[0033] In the figure: 1-front top beam; 2-rear tail beam; 3-base; 4-column; 5-four-link; 6-rear seat; 7-slag blocking lifting platform; 8-bottom unloading scraper conveyor; 9-slag throwing belt conveyor; 10-telescopic beam; 71-oil cylinder; 72-platform; 73-discharge port; 74-skylight; 75-first limit block; 76-second limit block; 77-lifting end; 81-slag discharge hole; 91-frame; 92-head roller; 93-tail roller; 94-belt pressure redirecting roller; 95-conveyor belt; 96-funnel; 97-hydraulic motor. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] The present invention is described in further detail below with reference to the accompanying drawings:

[0037] In one embodiment of the present invention, a hydraulic support for fully-mechanized mining and throwing type gangue filling is provided to increase the width of the coal mining and filling working face, improve the gangue filling efficiency and the filling connection rate, reduce the filling top distance at the tail of the frame, and improve the slope, speed, height and distance of the thrown gangue without affecting the mining speed, reduce the size of the thrown gangue belt conveyor, optimize the structure of the thrown gangue belt conveyor, and improve the reliability of the thrown gangue belt conveyor.

[0038] For details, see Figure 1 and Figure 2 The fully-mechanized mining support and throwing type gangue filling hydraulic support comprises a front top beam 1, a rear tail beam 2, a base 3, and four or six columns 4 and four connecting rods 5 connecting the front top beam 1, the rear tail beam 2 and the base 3. One end of the front top beam 1 is connected to the rear tail beam 2. The base 3 is located below the front top beam 1 and the rear tail beam 2. A telescopic beam 10 is provided at the tail of the rear tail beam 2. One end of the base 3 is connected to the support and throwing type gangue filling device.

[0039] according to Figure 3 and Figure 4 As shown, the support-throwing type gangue filling device includes a rear seat 6, a gangue-blocking lifting platform 7, a bottom-discharging scraper conveyor 8, and a gangue-throwing belt conveyor 9; the front end of the rear seat 6 is connected to the base 3; the gangue-blocking lifting platform 7 is assembled on the rear seat 6, and the bottom-discharging scraper conveyor 8 and the gangue-throwing belt conveyor are installed on the gangue-blocking lifting platform 7;

[0040] The slag retaining lifting platform 7 includes a platform 72 and a lifting end 77. The platform 72 is horizontally cantilevered on the lifting end 77 toward the column 4. The lifting end 77 is assembled on the rear seat 6. The bottom of the platform 72 is connected to the rear seat 6 through the cylinder 71. The lifting end 77 drives the platform 72 to rise and fall through the cylinder 71. The leakage port 73 and the skylight window 74 are arranged adjacent to each other on the platform 72 in front and back. The bottom unloading scraper conveyor 8 is correspondingly assembled above the leakage port 73 to realize the function of the platform 72 supporting the bottom unloading scraper conveyor 8. A funnel 96 is provided at one end of the slag throwing belt conveyor 9, and one end of the funnel 96 on the slag throwing belt conveyor 9 is suspended below the leakage port 73, and the other end passes through the skylight window 74 and is fixedly connected to the platform 72 to realize belt throwing and filling of slag.

[0041] Specifically, according to Figure 5 As shown, the gangue conveyor also includes a frame 91, a head roller 92, a tail roller 93, a belt pressing and redirecting roller 94, a conveyor belt 95 and a hydraulic motor 97;

[0042] The frame 91 is arranged at an angle, and the high end of the frame 91 passes through the skylight 74 and is fixedly connected to the platform 72. The lower end of the frame 91 is located below the material leakage port 73. The head roller 92, the belt pressing and redirecting roller 94 and the tail roller 93 are arranged on the low end, middle end and high end of the frame 91 in sequence. The conveyor belt 95 is arranged around the head roller 92 and the tail roller 93 to realize the connection between the two ends of the conveyor belt 95; the belt pressing and redirecting roller 94 is located at the upper part of the conveyor belt and is in close contact with the conveyor belt 95 to realize the steering of the conveyor belt 95 from the inclined section to the horizontal section along the high end to the low end and the middle direction. The funnel 96 is arranged in the horizontal section of the conveyor belt 95 and is fixedly connected to the frame 91 through an inclined beam; the hydraulic motor 97 is assembled and connected to the end of the head roller 92.

[0043] Among them, a plurality of herringbone-shaped protrusions or pits are set on the surface of the conveyor belt 95 to effectively increase the friction resistance.

[0044] The cylinder diameters of the head roller 92 and the tail roller 93 are larger than the cylinder diameter of the belt pressing and redirecting roller 94, and the cylinder diameters of the head roller 92 and the tail roller 93 are equal. The diameters at both ends of the cylinder of the belt pressing and redirecting roller 93 are larger than the diameter in the middle of the cylinder, which facilitates the transformation of the upper layer of the conveyor belt from horizontal to inclined, increases the inclination angle of the throwing end, reduces the empty top distance of the frame tail filling, and improves the application range of the filling hydraulic support.

[0045] Specifically, a first limit block 75 and a second limit block 76 are provided on the platform 72. The first limit block 75 is arranged at the front end of the platform 72, and the second limit block 76 is arranged on both sides of the platform 72 along one end of the leakage port 73. The bottom unloading scraper conveyor 8 is arranged above the leakage port 73 between the first limit block 75 and the second limit block 76.

[0046] Specifically, according to Figure 6 As shown, the bottom-discharging scraper conveyor 8 is provided with a scraper groove, and a gangue leakage hole 81 with a controllable switch is provided in the scraper groove. The gangue leakage hole 81 is located above the material leakage port 73, and the distance between the first limit block 75 and the second limit block 76 is greater than 2 times the width of the scraper groove.

[0047] Specifically, the cross-sectional area of ​​the material passing through the gangue hole 81 is smaller than the cross-sectional area of ​​the material passing through the material leakage port 73 , and the cross-sectional area of ​​the material passing through the material leakage port 73 is smaller than the cross-sectional area of ​​the material passing through the funnel 96 .

[0048] Specifically, the gangue leakage hole 81 is provided with a sealing plate with an oil cylinder for controlling the closing and opening of the gangue leakage hole 81 .

[0049] The comprehensive mining support and throwing type gangue filling hydraulic support provided by the present invention adjusts the height of the gangue lifting platform according to the mining height of the working face during operation, so that the vertical distance from the bottom unloading scraper conveyor 8 to the rear tail beam 2 is 0.2-0.4m. The gangue filling material is transported to the end of the bottom unloading scraper conveyor 8 by a belt. After the bottom unloading scraper conveyor 8 is started, the gangue leakage hole 81 is opened, and the gangue filling material slips into the conveyor belt 95 of the gangue throwing belt conveyor 9 through the gangue leakage hole 81, the leakage port 73, and the funnel 96. The gangue is thrown into the goaf by the high-speed rotating conveyor belt 95. When the rear of the filling hydraulic support is filled and connected to the top, the gangue leakage hole 81 is closed and the frame is moved forward. The bottom unloading scraper conveyor 8 moves forward on the platform under the push of the second limit block 76, and the gangue throwing and moving of the adjacent frame are carried out in turn to continue the filling work.

[0050] The present invention increases the width of the fully-mechanized gangue filling working face to more than 200m, realizes the platform-supported scraper and the belt-efficient filling, optimizes the gangue throwing belt structure, reduces the size, increases the gangue throwing slope, speed, height and distance, reduces the empty top distance at the tail of the frame, greatly improves the scope of application, and can be expanded to be applicable to unstable roof filling mining. At the same time, it improves the filling efficiency and the roof connection rate, and integrates the solutions to the three major problems of gangue filling in long and large working faces, efficient gangue filling and timely gangue top connection and filling.

[0051] In summary, the present invention provides a comprehensive mining and gangue filling hydraulic support, which changes the installation mode of the bottom unloading scraper conveyor at the rear of the traditional comprehensive mining and gangue filling hydraulic support from a hanging type to a supporting type. The degree of freedom of the scraper conveyor on the supporting platform is greatly increased. There is no chain link connection between the scraper conveyor and the hydraulic support, and it is not affected by the width of the working surface, thereby increasing the width of the comprehensive mining and gangue filling working surface; the structure of the gangue throwing belt conveyor is changed, and a conveyor belt pressure roller is adopted to transform the upper layer of the conveyor belt from horizontal to inclined, thereby increasing the inclination angle of the throwing end, reducing the filling top distance of the frame tail, and improving the application range of the filling hydraulic support. At the same time, the size of the gangue throwing belt conveyor is reduced, the length is reduced to 1.2-1.5m, and multiple rollers are removed, so the belt speed can be increased to about 13m / s, making the gangue throwing speed, height, and distance greater, and the filling efficiency and top connection rate higher.

[0052] The present invention integrates and solves the three major problems of gangue filling in long and large working faces, efficient gangue filling and timely gangue top filling, and can be widely used in coal mines, metallurgical mines, national defense projects and other fields.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A fully mechanized mining support and gangue filling hydraulic support, comprising a front top beam (1), a rear tail beam (2), a base (3), and a column (4) and a four-link (5) connecting the front top beam (1), the rear tail beam (2) and the base (3); a telescopic beam (10) is provided at the rear of the rear tail beam (2); one end of the front top beam (1) is connected to the rear tail beam (2), and the base (3) is located below the front top beam (1) and the rear tail beam (2), and is characterized in that: One end of the base (3) is connected to a throwing type gangue filling device; The supporting and throwing type gangue filling device comprises a rear seat (6), a gangue retaining lifting platform (7), a bottom unloading scraper conveyor (8) and a gangue throwing belt conveyor (9); the front end of the rear seat (6) is connected to the base (3); the gangue retaining lifting platform (7) is assembled on the rear seat (6), and the bottom unloading scraper conveyor (8) and the gangue throwing belt conveyor are installed on the gangue retaining lifting platform (7); The gangue-blocking lifting platform (7) includes a platform (72) and a lifting end (77). The platform (72) is horizontally cantilevered on the lifting end (77) toward the column (4). The lifting end (77) is assembled on the rear seat (6). The bottom of the platform (72) is connected to the rear seat (6) through the oil cylinder (71). The lifting end (77) drives the platform (72) to rise and fall through the oil cylinder (71). The platform (72) is provided with material leakage ports (73) arranged adjacent to each other in front and back. and a skylight window (74), a bottom unloading scraper conveyor (8) is correspondingly assembled above the material leakage port (73), realizing the function of the platform (72) supporting the bottom unloading scraper conveyor (8), a funnel (96) is provided at one end of the gangue belt conveyor (9), and one end of the funnel (96) provided on the gangue belt conveyor (9) is suspended below the material leakage port (73), and the other end passes through the skylight window (74) and is fixedly connected to the platform (72), realizing the belt throwing and filling of gangue; The gangue conveyor also includes a frame (91), a head roller (92), a tail roller (93), a belt pressing and redirecting roller (94), a conveyor belt (95) and a hydraulic motor (97); The frame (91) is tilted, and the high end of the frame (91) passes through the skylight (74) and is fixedly connected to the platform (72). The low end of the frame (91) is located below the material leakage port (73). The head roller (92), the belt pressing and redirecting roller (94) and the tail roller (93) are sequentially arranged on the low end, the middle end and the high end of the frame (91). The conveyor belt (95) is arranged around the head roller (92) and the tail roller (93) to realize the connection of the two ends of the conveyor belt (95); the belt pressing and redirecting roller (94) is located at the upper part of the conveyor belt and is in close contact with the conveyor belt (95) to realize the steering of the conveyor belt (95) from the horizontal section to the inclined section along the low end to the middle of the high end. The funnel (96) is arranged on the horizontal section of the conveyor belt (95) and is fixedly connected to the frame (91) through an inclined beam; the hydraulic motor (97) is assembled and connected to the end of the head roller (92).

2. The fully mechanized mining and throwing type gangue filling hydraulic support according to claim 1 is characterized in that: The surface of the belt body of the conveyor belt (95) is provided with a plurality of herringbone-shaped protrusions or pits.

3. The fully mechanized mining and throwing type gangue filling hydraulic support according to claim 1 is characterized in that: The cylinder diameters of the head roller (92) and the tail roller (93) are larger than the cylinder diameter of the belt pressing and redirecting roller (94), and the cylinder diameters of the head roller (92) and the tail roller (93) are equal.

4. The fully mechanized mining and throwing type gangue filling hydraulic support according to claim 1 is characterized in that: The diameters of the two ends of the cylinder of the belt-pressing redirecting roller (94) are larger than the diameter of the middle part of the cylinder.

5. The fully mechanized mining and throwing type gangue filling hydraulic support according to claim 1 is characterized in that: A first limit block (75) and a second limit block (76) are provided on the platform (72), the first limit block (75) being arranged at the front end of the platform (72), the second limit block (76) being arranged on both sides of the platform (72) along one end of the material leakage opening (73), and the bottom unloading scraper conveyor (8) being arranged above the material leakage opening (73) and between the first limit block (75) and the second limit block (76).

6. The fully mechanized mining and throwing type gangue filling hydraulic support according to claim 5 is characterized in that: A gangue leakage hole (81) with a controllable switch is provided in the scraper trough of the bottom-discharging scraper conveyor (8), the gangue leakage hole (81) is located above the material leakage port (73), and the distance between the first limit block (75) and the second limit block (76) is greater than twice the width of the scraper trough.

7. The fully mechanized mining and throwing type gangue filling hydraulic support according to claim 6 is characterized in that: The cross-sectional area through which the material passes in the gangue leakage hole (81) is smaller than the cross-sectional area through which the material passes in the leakage port (73), and the cross-sectional area through which the material passes in the leakage port (73) is smaller than the cross-sectional area through which the material passes in the funnel (96).

8. The fully mechanized mining and throwing type gangue filling hydraulic support according to claim 6 is characterized in that: The gangue hole (81) is provided with a sealing plate with an oil cylinder.

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