Underground coal gangue transport, break, screen, store, distribute and load integrated machine

Abstract

The utility model belongs to coal gangue underground processing technical field, concretely relates to a kind of underground coal gangue transport, break, screen, store, mix, load integrated machine;Including assembly type horizontal gangue storage bin, upper bin belt conveyor, discharge scraper conveyor, telescopic conveying line and mobile screening and feeding integrated machine;Assembly type horizontal gangue storage bin includes linearly arranged unit bin;The upper portion of assembly type horizontal gangue storage bin is provided with lower layer track;Mobile screening and feeding integrated machine is assembled on lower layer track and can move along lower layer track;The fixed end of telescopic conveying line is connected with upper bin belt conveyor, and the movable end of telescopic conveying line can be telescopic with mobile screening and feeding integrated machine;Mixing inlet, fine screening section, coarse screening section and tail outlet are sequentially arranged on mobile screening and feeding integrated machine;Underground coal gangue transport, break, screen, store, mix, load integrated machine can complete crushing, classification, transportation, storage, batching, loading work, simplify underground transportation system, simplify coal gangue filling process.

Description

Technical Field

[0001] This utility model belongs to the field of underground coal gangue processing technology, specifically relating to an integrated machine for underground coal gangue transportation, crushing, screening, storage, distribution and loading. Background Technology

[0002] The utility model applicant, Zu Ke, has been deeply involved in the coal industry for fifty years and has a profound understanding of the core pain points in the industry's green development. Among them, the environmental governance of coal gangue has always been a key problem that has long restricted the industry's transformation. Its governance process has long faced two core bottlenecks that are difficult to overcome, resulting in an inability to balance environmental benefits and production benefits.

[0003] The first major bottleneck is the high cost of coal gangue treatment. Traditional coal gangue treatment involves multiple steps, including "ground collection - long-distance transportation - centralized ground crushing - secondary backfilling," each of which requires significant investment in equipment (such as transport vehicles and crushing units), energy consumption, and labor costs. Coupled with environmental compliance and site operation and maintenance costs, this directly drives up the cost per ton of gangue, placing a heavy economic burden on coal companies. Some companies have even been forced to slow down their treatment progress due to cost pressures.

[0004] The second major bottleneck is the conflict between coal production and coal gangue backfilling. Traditional backfilling operations require separate underground transportation channels, working space, and production time: if backfilling is prioritized, the operation rhythm of coal mining equipment needs to be suspended or adjusted, resulting in a decrease in coal mining efficiency; if coal mining progress is prioritized, coal gangue backfilling will be delayed, creating a dilemma of "balancing governance and production," which seriously undermines the coordination and continuity of underground operations.

[0005] Current industry solutions for coal gangue remediation have significant limitations: some solutions attempt to reduce costs by simplifying a single step (such as shortening transportation distances), but fail to address process conflicts; others try to optimize the time ratio between production and backfilling, but cannot reduce overall costs due to dispersed equipment and cumbersome processes. In summary, existing technologies cannot simultaneously solve the two major problems of "high cost" and "process interference," necessitating a low-cost, integrated coal gangue backfilling technology. Utility Model Content

[0006] This invention aims to solve the problem of complex coal gangue backfilling processes that occupy limited underground production space.

[0007] This utility model provides the following technical solution: an integrated machine for underground coal gangue transportation, crushing, screening, storage, distribution, and loading, including an assembled horizontal storage bin, an upper bin belt conveyor, a discharge scraper conveyor, a telescopic conveyor line, and a mobile screening and feeding integrated machine; the assembled horizontal storage bin includes linearly arranged unit bins, which are divided into fine material bins, coarse material bins, and large material bins according to their storage functions; the unit bins in the assembled horizontal storage bin are arranged in a cyclical manner according to the fine material bins, coarse material bins, and large material bins; The inlet of the unit bin is at the top and the outlet is at the bottom; the assembled horizontal storage bin is equipped with a lower track in the same direction as the unit bins; the mobile screening and feeding machine is mounted on the lower track and can move along the lower track; the receiving part of the upper bin belt conveyor is located at the previous processing system, and the telescopic conveyor is mounted on the lower track. The fixed end of the telescopic conveyor is connected to the upper bin belt conveyor, and the movable end of the telescopic conveyor can extend and retract with the mobile screening and feeding machine. The mobile screening and feeding integrated machine is equipped with a mixing inlet, a fine screening section, a coarse screening section, and a tailings outlet in sequence. The mixing inlet is located at the unloading point of the telescopic conveyor line. The range of the fine screening section, the coarse screening section, and the tailings outlet corresponds to the inlet of the fine material bin, the coarse material bin, and the large material bin. When the mixed material enters the mixing inlet, the fine material falls into the fine material bin when it passes through the fine screening section, the coarse material falls into the coarse material bin when it passes through the coarse screening section, and finally the remaining tailings fall into the large material bin. The discharge scraper conveyor passes under the discharge port of the unit silo to send the material discharged from the unit silo into the next stage of the processing system.

[0008] This utility model discloses an integrated machine for transporting, crushing, screening, storing, batching, and loading coal gangue in underground mines, improving the underground transportation and storage system; completely solving the environmental protection problems of coal gangue; and providing a one-stop solution for the transportation, crushing, screening, grading, storage, batching, and loading of coal gangue. The equipment is easily movable within underground roadways, and the modular horizontal gangue storage bin can be disassembled into unit bins for relocation. Both the upper bin belt conveyor and the discharge scraper conveyor are movable. While solving the environmental protection problems of coal gangue, it also addresses the issue of surface subsidence caused by coal mining. Adopting a horizontally arranged linear structure, it fully utilizes roadway space, integrating the screening and storage functions that traditionally require large areas into a single line, greatly saving valuable underground operating space.

[0009] Through metering, integration, modularization, and automation, the system successfully integrates multiple processes such as coal gangue transportation, crushing, screening, storage, batching, and loading into a closed-loop system that operates continuously underground. This equipment not only completely revolutionizes the traditional, complex, and costly coal gangue processing model, achieving significant economic benefits, but also effectively solves two major industry challenges—surface pollution from gangue emissions and surface subsidence in goaf areas—through direct underground processing and backfilling. It provides key technological equipment support for the green, safe, and efficient mining of the coal industry.

[0010] Furthermore, an upper track is installed above the telescopic conveyor line and the mobile screening and feeding integrated machine, which is parallel to the lower track. A cable trolley and multiple cable pulleys are suspended on the upper track. The cables that supply power to the telescopic conveyor line and the mobile screening and feeding integrated machine are connected to the cable pulleys in sequence, then coiled on the cable trolley, and then connected to the telescopic conveyor line and the mobile screening and feeding integrated machine.

[0011] Furthermore, the upper track is made of H-beams; The cable-draft trolley includes a first hanger, which is slidably clamped onto the upper track by two rows of first rollers located in the abdominal cavity on both sides of the upper track. The first rollers are drive rollers, and the first rollers in the same row are driven by a chain. One of the first rollers is connected to a drive motor, and the cable-draft trolley can move autonomously on the upper track. The first hanger is hinged to a horizontally rotatable drum hanger. A horizontal cable drum is installed on the drum hanger. The cable drum has an external rotor drum motor built in, which can drive the cable drum to rotate for winding and unwinding. The cable drum is divided into multiple cable grooves by annular partitions distributed along the axial direction. The cable trolley includes a second hanger, which is slidably clamped onto the upper track by two rows of second rollers located in the cavities on both sides of the upper track. The second rollers are driven rollers. The cable trolley is dragged by a cable trolley via a cable. The second hanger is equipped with a wire-pressing arc plate, and the cable is clamped between the upper and lower wire-pressing arc plates.

[0012] Furthermore, the mobile screening and feeding integrated machine includes a mobile frame, a mobile feeder, and a horizontal drum screen; the mobile frame is slidably mounted on the lower track; The mobile feeder and the horizontal drum screen are rotatably mounted on the mobile frame; the mobile feeder is supported by rollers on the mobile frame, and the horizontal drum screen is supported by first horizontal rollers on the mobile frame. One side of the mobile feeder is a mixing inlet and the other side is a mixing outlet. The mixing outlet is smaller than the mixing inlet. The mixing outlet extends into the central opening of one end face of the horizontal drum screen. The other end face of the horizontal drum screen is provided with a tail material outlet. The mobile feeder serves as the fine screening section, while the horizontal drum screen serves as the coarse screening section. The inner wall of the horizontal drum screen is equipped with spiral conveying blades. When the horizontal drum screen rotates, the spiral conveying blades feed material from one side of the mobile feeder to the tail material outlet side. The movable end of the telescopic conveyor line is connected to the moving frame.

[0013] Furthermore, the movable frame moves on the lower track via a third roller; a rack parallel to the lower track is provided on the outer side of the lower track, and the rack is fixedly connected to the lower track by bolts; a drive gear that meshes with the rack is installed on the movable frame, and the drive gear is connected to the external rotor motor.

[0014] Furthermore, the mobile feeder is a mobile inclined feeder; the upper port of the mobile inclined feeder is a mixing inlet and the lower port is a mixing outlet; the mobile inclined feeder is supported by the first inclined towing wheel on the mobile frame. The mobile inclined feeder and the horizontal drum screen share a drive system. The outer ring of the horizontal drum screen is provided with a first spur gear ring, and the outer ring of the mobile inclined feeder is provided with a first bevel gear ring. A first drive motor is installed on the mobile frame. A first spur gear that meshes with the first spur gear ring and a first bevel gear that meshes with the first bevel gear ring are installed on the output shaft of the first drive motor.

[0015] Furthermore, the mobile feeder is a mobile horizontal feeder. An inclined feeding screen pipe and a guide pipe are provided between the mobile horizontal feeder and the horizontal drum screen. The mobile horizontal feeder is supported by the second horizontal towing wheel on the mobile frame, and the inclined feeding screen pipe is supported by the second inclined towing wheel on the mobile frame. One end face of the mobile horizontal feeder is open, serving as the mixing inlet, while the other end face is closed. From the mixing inlet, the mobile horizontal feeder consists of a screening section and a discharge section. Spiral conveying blades are installed on the inner wall of the mobile horizontal feeder, feeding material from the mixing inlet to the discharge section as the feeder rotates. The inlet of the inclined feeding screen is located below the discharge section of the mobile horizontal feeder. A fixed guide pipe is installed between the inlet of the inclined feeding screen and the discharge section of the mobile horizontal feeder. The outlet of the inclined feeding screen extends into the central opening on one end face of the horizontal drum screen as the mixing outlet. The mesh size of the inclined feeding screen is the same as that of the screening section of the mobile horizontal feeder. The mobile horizontal feeder, the inclined feeding screen tube, and the horizontal drum screen share a common drive system. The outer ring of the horizontal drum screen is provided with a first spur tooth gear ring, the outer ring of the mobile horizontal feeder is provided with a second spur tooth gear ring, and the outer ring of the inclined feeding screen tube is provided with a second bevel tooth gear ring. A first drive motor is installed on the mobile frame, and a first spur gear that meshes with the first spur tooth gear ring and a second spur gear that meshes with both the second bevel tooth gear ring and the second spur tooth gear ring are installed on the output shaft of the first drive motor.

[0016] Furthermore, the upstream processing system located at the receiving section of the upper belt conveyor is a mobile coal gangue grading and crushing machine; the upper belt conveyor includes a belt storage device, a tail drum, and a top drum frame; the conveyor belt of the upper belt conveyor starts from the tail drum, passes through the upper drum of the top drum frame, the telescopic conveyor line, the lower drum of the top drum frame, and the belt storage device, and then returns to the tail drum. The next stage of processing, located at the discharge point of the scraper conveyor, is the coal gangue concrete mixer truck.

[0017] Furthermore, the telescopic conveyor line includes a head roller and a series of sliding idler roller units; The roller frame of the head roller is supported by a lifting electric cylinder that is slidably mounted on the lower track, and the lifting electric cylinder is connected to the moving frame; The sliding idler unit includes an idler hanger, which is mounted on the lower track via fourth rollers on both sides. Two spiral idlers are arranged on the idler hanger. The conveyor belt of the upper warehouse belt conveyor is delivered from the upper spiral idler, turned by the head roller, and returns from the lower spiral idler. The sliding idler units are connected to each other by ropes. The first sliding idler unit is connected to the lifting electric cylinder.

[0018] Furthermore, a metering gate feeder is installed at the discharge port of the unit compartment. The metering gate feeder includes an end plate, a rotating shaft, and blades. Two end plates are arranged opposite each other. The rotating shaft passes through the two end plates and is rotatably connected to the unit compartment and the uniform speed drive mechanism. Multiple blades are evenly distributed around the rotating shaft and are fixedly connected to the end plate and the rotating shaft. The end plate, the rotating shaft, and two adjacent blades form a quantitative discharge chamber.

[0019] Compared with the prior art, the advantages of this utility model are: This utility model provides an integrated machine for underground coal gangue transportation, crushing, screening, storage, batching, and loading. It integrates six major functional modules—crushing, grading and screening, transportation, classified storage, on-demand batching, and automatic loading—into a continuously operating system. It replaces the traditional multi-stage and high-cost model of "ground collection → long-distance transportation → ground centralized crushing → secondary return to the mine for backfilling," realizing one-stop, assembly-line operation in underground roadways.

[0020] The system achieves continuous automated screening and precise classification and storage. A mobile integrated screening and feeding machine, in conjunction with cyclically arranged unit bins (fine material bins, coarse material bins, and large material bins), enables continuous, automated grading and screening of crushed gangue while in motion, and precise feeding into the bins. The modular horizontal gangue storage bins serve as buffer and batching bins, enabling the classification and quantitative storage of materials of different particle sizes, laying the foundation for subsequent precise batching. The metering gate feeder at the bottom of the unit bins, through controllable rotation speed, achieves precise metering of the output, allowing for precise proportioning of fine, coarse, and large materials according to the requirements of the downstream mixing process. The discharge scraper conveyor directly loads the proportioned mixture into the coal gangue concrete mixer truck, completing the final stages of "batching" and "loading." Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the integrated underground coal gangue transportation, crushing, screening, storage, distribution and loading machine of Example 1; Figure 2 for Figure 1 Schematic diagram of the (slag storage area) in section AA; Figure 3 for Figure 1 A schematic diagram of the (fracture zone) in the middle BB interval; Figure 4 for Figure 1 Schematic diagram of the loading area in the CC section; Figure 5 This is a schematic diagram of the mobile screening and feeding integrated machine of Example 1; Figure 6 This is a cross-sectional view of the mobile inclined feeder. Figure 7 This is a cross-sectional view of the horizontal drum screen. Figure 8 for Figure 7 Enlarged view of a medium-level horizontal drum screen; Figure 9 A schematic diagram of the cable trolley and cable-dragging trolley; Figure 10 This is a cross-sectional view of the cable-draft trolley. Figure 11 for Figure 10 Enlarged view of the cable-stayed trolley; Figure 12 This is a cross-sectional view of the cable trolley. Figure 13 for Figure 12 Enlarged view of the cable pulley in the middle; Figure 14 This is a schematic diagram of a telescopic conveyor line; Figure 15 This is a cross-sectional view of the sliding idler unit; Figure 16This is a schematic diagram of a sliding idler unit; Figure 17 This is a cross-sectional view of the head roller. Figure 18 This is a schematic diagram of a metering gate feeder; Figure 19 This is a schematic diagram of the integrated underground coal gangue transportation, crushing, screening, storage, distribution and loading machine of Example 2; Figure 20 for Figure 19 A schematic diagram of a mobile screening and feeding integrated machine within the DD section; Figure 21 A schematic diagram of the backfilling process for a fully mechanized mining face.

[0022] In the diagram: 1-Assembled horizontal storage bin; 1.1-Unit bin; 1.1.1-Fine material bin; 1.1.2-Coarse material bin; 1.1.3-Large material bin; 1.2-Inlet; 1.3-Outlet; 2-Upper warehouse belt conveyor; 2.1-Belt storage device; 2.2-Tail roller; 2.3-Top roller frame; 3-Discharge scraper conveyor; 4-Telescopic conveyor line; 4.1-Head roller; 4.2-Idler hanger; 4.3-Fourth roller; 4.4-Spiral idler; 4.5-Pull rope; 4.6-Lifting electric cylinder; 5-Mobile integrated screening and feeding machine; 5.1-Mixing inlet; 5.2-Fine screening section; 5.3-Coarse screening section; 5.4-Tail outlet; 5.5-Mobile frame; 5.6-Horizontal drum screen; 5.7-First inclined roller; 5.8-First horizontal roller; 5.9-First spur gear ring; 5.10-First bevel gear ring; 5.11-First drive motor; 5.12-First bevel gear; 5.13-First spur gear; 5.14-Third roller; 5.15-Mobile horizontal feeder; 5.16-Inclined feeding screen pipe; 5.17-Guide riser; 5.18-Second spur gear ring; 5.19-Second bevel gear ring; 5.20-Second spur gear; 5.21-Dust collector; 5.22-Mobile inclined feeder; 6 - Lower track; 7 - Upper track; 8-Cable trolley; 8.1-First hanger; 8.2-First roller; 8.3-Drum hanger; 8.4-Cable reel; 8.5-Outer rotor drum motor; 8.6-Chain; 8.7-Blocker; 9-Cable trolley; 9.1-Second hanger; 9.2-Second roller; 9.3-Cable pressure arc plate; 10-Cable; 11-Rack; 12-Drive gear; 13-Metering gate feeder; 13.1-End plate; 13.2-Shaft; 13.3-Blade; 14-Coal gangue concrete mixer truck; 15-Fully mechanized mining face; 16-Assembled horizontal coal bunker; 17-Underground coal gangue transportation, crushing, screening, storage, distribution and loading integrated machine; 18-Mobile coal gangue grading crusher. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Example 1 like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown: An integrated machine for underground coal gangue transportation, crushing, screening, storage, distribution and loading includes an assembled horizontal gangue storage bin 1, an upper bin belt conveyor 2, a discharge scraper conveyor 3, a telescopic conveyor line 4 and a mobile screening and feeding integrated machine 5; the assembled horizontal gangue storage bin 1 includes linearly arranged unit bins 1.1, which are divided into fine material bins 1.1.1, coarse material bins 1.1.2 and large material bins 1.1.3 according to their storage functions; the unit bins 1.1 in the assembled horizontal gangue storage bin 1 are arranged in a cycle of fine material bins 1.1.1, coarse material bins 1.1.2 and large material bins 1.1.3.

[0025] The inlet 1.2 of unit bin 1.1 is at the top, and the outlet 1.3 is at the bottom, with gravity feeding and discharging. A lower track 6, aligned with the unit bin 1.1, is installed above the assembled horizontal storage bin 1. The lower track 6 is a steel rail and is fixed to the assembled horizontal storage bin 1 by support legs. A mobile screening and feeding integrated machine 5 is mounted on the lower track 6 and can move along it. The receiving section of the upper bin belt conveyor 2 is located at the previous processing system, and the telescopic conveyor line 4 is mounted on the lower track 6. The fixed end of the telescopic conveyor 4 is connected to the upper belt conveyor 2, and the movable end of the telescopic conveyor 4 can extend with the mobile screening and feeding machine 5. The upper belt conveyor 2 transports the material processed by the previous processing system to the telescopic conveyor 4, and the telescopic conveyor 4 transports the material to the mobile screening and feeding machine 5. After the current unit bin 1.1 is full, the mobile screening and feeding machine 5 moves to the next unit bin 1.1. The telescopic conveyor 4 extends and retracts with the mobile screening and feeding machine 5 to continuously supply material, which can complete the feeding of the entire assembled horizontal storage bin 1.

[0026] The mobile screening and feeding integrated machine 5 is sequentially equipped with a mixing inlet 5.1, a fine screening section 5.2, a coarse screening section 5.3, and a tailings outlet 5.4. The mixing inlet 5.1 is located at the unloading point of the telescopic conveyor line 4 and receives the material unloaded from the telescopic conveyor line 4. The ranges of the fine screening section 5.2, the coarse screening section 5.3, and the tailings outlet 5.4 correspond to the inlets 1.2 of the fine material bins 1.1.1, 1.1.2 of the coarse material bins, and 1.1.3 of the large material bins. When the mixed material entering the mixing inlet 5.1 passes through the fine screening section 5.2, the fine material falls into the fine material bin 1.1.1; when it passes through the coarse screening section 5.3, the coarse material falls into the coarse material bin 1.1.2; and finally, the remaining tailings fall into the large material bin 1. 1.3; The mobile screening and feeding integrated machine 5 completes the screening of materials while feeding them. The mobile screening and feeding integrated machine 5 is arranged from front to back with a mixing inlet 5.1, a fine screening section 5.2, a coarse screening section 5.3, and a tail material outlet 5.4. When the mixed material entering from the mixing inlet 5.1 passes through the fine screening section 5.2, the smallest powder particles are screened out first and fall into the corresponding fine material bin 1.1.1 below. The material continues to move to the coarse screening section 5.3, where larger particles are screened out and fall into the corresponding coarse material bin 1.1.2 below. Finally, the block material that cannot be screened out is discharged from the tail material outlet 5.4 and falls into the corresponding large material bin 1.1.3 below.

[0027] The discharge scraper conveyor 3 passes under the discharge port 1.3 of unit bin 1.1 and is used to send the material discharged from unit bin 1.1 into the next stage of the processing system.

[0028] The upstream processing system located at the receiving section of the upper belt conveyor 2 is a mobile coal gangue grading and crushing machine 10, which is used to crush gangue. The upper belt conveyor 2 includes a belt storage device 2.1, a tail roller 2.2, and a top roller frame 2.3. The conveyor belt of the upper belt conveyor 2 starts from the tail roller 2.2, passes through the upper roller of the top roller frame 2.3, the telescopic conveyor line 4, the lower roller of the top roller frame 2.3, and the belt storage device 2.1 before returning to the tail roller 2.2. The belt storage device 2.1 allows the upper belt conveyor 2 to be extended and shortened.

[0029] The next stage of the processing system located at the unloading point of the discharge scraper conveyor 3 is the coal gangue concrete mixer truck 14. The material released by gravity from the discharge port 1.3 of the unit bin 1.1 falls onto the discharge scraper conveyor 3.

[0030] like Figure 2 , Figure 14 , Figure 17 As shown: The telescopic conveyor line 4 includes a head roller 4.1 and a series of sliding idler roller units; The roller frame of the head roller 4.1 is supported by a lifting cylinder 4.6 that is slidably mounted on the lower track 6. The height of the head roller 4.1 is adjusted by the lifting cylinder 4.6 so that the material drop range of the telescopic conveyor line 4 corresponds to the mixing inlet 5.1 of the mobile screening and feeding machine 5. The lifting cylinder 4.6 is connected to the moving frame 5.5, and the moving frame 5.5 moves the head roller 4.1.

[0031] like Figure 15 , Figure 16 As shown: The sliding idler unit adopts an anti-torque hanger design (anti-tipping); it features a small footprint, integrating idler, self-aligning, and centering functions, making it suitable for applications in confined underground spaces. The sliding idler unit includes an idler hanger 4.2, which is mounted on the lower track 6 via fourth rollers 4.3 on both sides. The idler hanger 4.2 can slide freely on the lower track 6 to lengthen or shorten the telescopic conveyor line 4. Two upper and lower spiral idlers 4.4 are arranged on the idler hanger 4.2. The spiral idlers 4.4 can automatically center the belt to prevent belt deviation. The spiral idlers 4.4 are commercially available products. The conveyor belt of the upper belt conveyor 2 is fed from the upper spiral idler 4.4 and then turned by the head roller 4.1 and returned from the lower spiral idler 4.4. The sliding idler units are connected to each other by the pull rope 4.5. The pull rope 4.5 connects the sliding idler units together to prevent the spacing between the sliding idler units from being too long. The first sliding idler unit is connected to the lifting electric cylinder 4.6. When the head roller 4.1 moves with the moving frame 5.5, it stretches the series of sliding idler units.

[0032] like Figure 18As shown: A metering gate feeder 13 is installed at the discharge port 1.3 of unit bin 1.1. The metering gate feeder 13 includes an end plate 13.1, a rotating shaft 13.2, and blades 13.3. The two end plates 13.1 are arranged opposite each other. The rotating shaft 13.2 passes through the two end plates 13.1 and is rotatably connected to the unit bin 1.1 and the uniform speed drive mechanism. Multiple blades 13.3 are evenly distributed around the rotating shaft 13.2 and are fixedly connected to the end plates 13.1 and the rotating shaft 13.2. The end plates 13.1, the rotating shaft 13.2, and two adjacent blades 13.3 form a quantitative discharge chamber. The detailed contents of the metering gate feeder 13 are recorded in the utility model patent entitled "Metering Gate Feeder" filed by the utility model applicant Zu Ke in 2025, with publication number CN120793570A. The metering gate feeder 13 also includes a metering sensor and a speed sensor. The uniform speed drive mechanism is an external rotor motor. The principle of the metering gate feeder 13 is that when the uniform speed drive mechanism drives the rotating shaft 13.2 to rotate, the end plate 13.1, the rotating shaft 13.2 and the two adjacent blades 13.3 form a quantitative discharge chamber. The material pushed out each time is quantitative. The weighing sensor measures and adds up the material pushed out each time. Therefore, controlling the number of rotations of the rotating shaft 13.2 can control the discharge amount. Thus, the fine material bin 1.1.1, the coarse material bin 1.1.2 and the large material bin 1.1.3 are discharged in proportion.

[0033] like Figure 2 As shown: An upper track 7 is provided above the telescopic conveyor line 4 and the mobile screening and feeding integrated machine 5. The upper track 7 is parallel to the lower track 6. A cable trolley 8 and multiple cable trolleys 9 are suspended on the upper track 7. The cable 10 that supplies power to the telescopic conveyor line 4 and the mobile screening and feeding integrated machine 5 is connected to the cable trolleys 9 in sequence, then coiled on the cable trolley 8, and then connected to the telescopic conveyor line 4 and the mobile screening and feeding integrated machine 5.

[0034] like Figure 9 , Figure 10 , Figure 11 As shown: the upper track 7 is made of H-beams and can be installed on the roof of the tunnel; the cable trolley 8 includes a first hanger 8.1, which is slidably clamped onto the upper track 7 by two rows of first rollers 8.2 located in the cavities on both sides of the upper track 7. The first rollers 8.2 are drive rollers, and the first rollers 8.2 in the same row are driven by a chain 8.6. One of the first rollers 8.2 is connected to a drive motor, and the cable trolley 8 can move autonomously on the upper track 7; A horizontally rotatable reel hanger 8.3 is hinged below the first hanger 8.1. The reel hanger 8.3 can rotate horizontally and adaptively adjust its angle according to the location of the electrical appliance to prevent the cable 10 from getting tangled. A horizontal cable reel 8.4 is provided on the reel hanger 8.3. The cable reel 8.4 has an external rotor reel motor 8.5 built in, which drives the cable reel 8.4 to rotate for winding and unwinding. When the cable reel 8.4 rotates, it simultaneously winds up and unwinds the cable 10 from the direction of the cable trolley 9 and the direction of the electrical appliance. The cable reel 8.4 is divided into multiple winding slots by annular partitions 8.7 distributed along the axial direction. The cables 10 of different electrical appliances are located in different winding slots to prevent the cables 10 from getting tangled.

[0035] like Figure 12 , Figure 13 As shown: The cable trolley 9 includes a second hanger 9.1. The second hanger 9.1 is slidably clamped onto the upper track 7 by two rows of second rollers 9.2 located in the cavities on both sides of the upper track 7. The second rollers 9.2 are driven rollers. The cable trolley 9 is dragged by the cable trolley 8 through the cable 10. The second hanger 9.1 is provided with a wire-pressing arc plate 9.3. The cable 10 is clamped between the upper and lower wire-pressing arc plates 9.3. The cable trolley 9 clamps the cable 10 through the two wire-pressing arc plates 9.3 to increase the contact area with the cable 10 and prevent stress concentration damage to the cable 10.

[0036] like Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown: The mobile screening and feeding integrated machine 5 includes a mobile frame 5.5, a mobile feeder and a horizontal drum screen 5.6; the mobile frame 5.5 is slidably assembled on the lower track 6; The mobile feeder and the horizontal drum screen 5.6 are rotatably mounted on the mobile frame 5.5. The mobile feeder is supported by the rolling rollers on the mobile frame 5.5, and the horizontal drum screen 5.6 is supported by the rolling first horizontal rollers 5.8 on the mobile frame 5.5. Along the axial direction of the horizontal drum screen 5.6, there are two or more sets of first horizontal rollers 5.8 arranged front and rear. The axial positioning of the horizontal drum screen 5.6 adopts existing technology, such as adding a limiting wheel on the end face, or having a groove on the circumferential surface of the horizontal drum screen 5.6, with the first horizontal rollers 5.8 located in the groove.

[0037] One side of the mobile feeder is a mixing inlet 5.1, and the other side is a mixing outlet. The mixing outlet is smaller than the mixing inlet 5.1. The mixing outlet extends into the center opening of one end face of the horizontal drum screen 5.6. The mobile feeder does not interfere with the rotation of the horizontal drum screen 5.6. The other end face of the horizontal drum screen 5.6 is provided with a tail material outlet 5.4. The mobile feeder serves as the fine screening section 5.2, and the horizontal drum screen 5.6 serves as the coarse screening section 5.3. The inner wall of the horizontal drum screen 5.6 is equipped with spiral conveying blades. When the horizontal drum screen 5.6 rotates, the spiral conveying blades feed material from one side of the mobile feeder to the tail material outlet 5.4. The movable end of the telescopic conveyor line 4 is connected to the mobile frame 5.5.

[0038] The horizontal drum screen 5.6 is matched with the conveyor belt to provide continuous and non-clogging material handling. Table 1 shows the throughput of the horizontal drum screen 5.6.

[0039] Table 1: Processing Capacity of Horizontal Rotary Drum Screen As can be seen from the table, adjusting the horizontal drum screen to 5.6 according to the conveyor belt capacity achieves the best processing effect.

[0040] The movable frame 5.5 moves on the lower track 6 via the third roller 5.14; the outer side of the lower track 6 is provided with a rack 11 parallel to it, and the rack 11 is fixedly connected to the lower track 6 by bolts. The movable frame 5.5 is equipped with a drive gear 12 that meshes with the rack 11. The drive gear 12 is connected to the walking external rotor motor. The drive gear 12 moves on the rack 11 to drive the movable screening and feeding integrated machine 5 to move. The gear and rack meshing structure can effectively avoid slippage.

[0041] The mobile feeder is a mobile inclined feeder 5.22; the upper port of the mobile inclined feeder 5.22 is the mixing inlet 5.1, and the lower port is the mixing outlet; the mobile inclined feeder 5.22 is supported by first inclined rollers 5.7 on the mobile frame 5.5, and two or more sets of first inclined rollers 5.7 are arranged front and rear along the axial direction of the mobile inclined feeder 5.22; Note: Figure 4 For simplicity, the first tilting roller 5.7 is arranged not only below the mobile tilting feeder 5.22, but also above the mobile tilting feeder 5.22, and the mobile tilting feeder 5.22 is confined in the middle of the ring formed by the first tilting roller 5.7.

[0042] The mobile inclined feeder 5.22 and the horizontal drum screen 5.6 share a drive system, employing a one-to-two configuration to simplify the drive system. The outer ring of the horizontal drum screen 5.6 is equipped with a first spur gear ring 5.9, and the outer ring of the mobile inclined feeder 5.22 is equipped with a first bevel gear ring 5.10. A first drive motor 5.11 is mounted on the moving frame 5.5. The output shaft of the first drive motor 5.11 is equipped with a first spur gear 5.13 that meshes with the first spur gear ring 5.9 and a first bevel gear 5.12 that meshes with the first bevel gear ring 5.10. The first drive motor 5.11 synchronously drives the mobile inclined feeder 5.22 and the horizontal drum screen 5.6 through the meshing of the first spur gear 5.13 with the first spur gear ring 5.9 and the first bevel gear 5.12 with the first bevel gear ring 5.10. The rotation of the mobile inclined feeder 5.22 prevents material blockage.

[0043] The 5.22 mobile tilting feeder has an overall conical design, which allows for faster material conveying, but it requires a higher aisle height.

[0044] In this embodiment, the underground coal gangue transportation, crushing, screening, storage, distribution and loading integrated machine uses the assembled horizontal gangue storage bin 1 as a platform. The mobile screening and feeding integrated machine 5 and the telescopic conveyor line 4 travel on the lower track 6 on the top of the assembled horizontal gangue storage bin 1. The telescopic conveyor line 4 continuously feeds gangue to the mobile screening and feeding integrated machine 5. The mobile screening and feeding integrated machine 5 divides the gangue into fine material, coarse material and tailings, which enter the bottom unit bin 1.1 respectively. During discharge: The metering gate feeder 13 at the discharge port 1.3 of unit 1.1 feeds the material to the discharge scraper conveyor 3 (discharge scraper conveyor) in proportion, which can accurately measure the material; the discharge scraper conveyor 3 delivers the proportioned material into the loading area. In the loading area: the coal gangue concrete mixer truck 14 is loaded into the coal gangue concrete mixer truck 14. The coal gangue concrete mixer truck 14 mixes the coal gangue concrete evenly while moving and reaches the filling working face. The small pump truck pumps the coal gangue concrete into the filling working face to complete the filling work.

[0045] The building volume of a screening and crushing workshop in existing technologies is related to project requirements and production scale. Taking a super-large-scale mine with a production capacity of 10 million tons / year as an example, coal gangue accounts for 10% to 20% of the total output. Taking 10% as an example, that's 1 million tons / year of output. Assuming an hourly processing capacity of 200 tons, the required building volume of the screening and crushing workshop would be 30 meters (length) × 15 meters (width) × 12 meters (height) = 5400 m². 3 The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine in this embodiment only occupies about 20% of the building volume of a coal gangue facility of the same scale. In particular, the height is significantly reduced to only 6 meters, which facilitates the layout of the coal gangue processing system in underground roadways and provides a solution for the sustainable development of coal mines.

[0046] The underground coal gangue transportation, crushing, screening, storage, blending, and loading integrated machine of this embodiment features multiple functions: it integrates transportation, crushing, screening, storage, grading, blending, and loading into one unit, greatly simplifying the underground coal gangue backfilling process. This provides strong support for underground coal gangue backfilling treatment. Another major feature of the underground coal gangue transportation, crushing, screening, storage, distribution and loading integrated machine in this embodiment is its mobility. If the assembled horizontal gangue storage bin 1 is the platform, then the track is the foundation (upper track 7, lower track 6). The telescopic conveyor line 4, the mobile screening and feeding integrated machine 5, the cable trolley 8, and the cable pulley 9 all move in an orderly manner on the track. The steel track has the characteristics of good centering, low running resistance, and low noise at slow speed.

[0047] Example 2 like Figure 19 , Figure 20 As shown: The difference between this embodiment and embodiment 1 is that the structure of the mobile screening and feeding integrated machine 5 is different; in embodiment 1, the mobile feeder of the mobile screening and feeding integrated machine 5 is a mobile inclined feeder 5.22, while in this embodiment, the mobile feeder of the mobile screening and feeding integrated machine 5 is a mobile horizontal feeder 5.15.

[0048] An inclined feeding screen pipe 5.16 and a guide pipe 5.17 are installed between the mobile horizontal feeder 5.15 and the horizontal drum screen 5.6. The mobile horizontal feeder 5.15 is supported by a second horizontal roller on the mobile frame 5.5 (the installation method of the mobile horizontal feeder 5.15 is the same as or similar to that of the horizontal drum screen 5.6); the inclined feeding screen pipe 5.16 is supported by a second inclined roller on the mobile frame 5.5 (the installation method of the inclined feeding screen pipe 5.16 is the same as or similar to that of the mobile inclined feeder 5.22). One end face of the mobile horizontal feeder 5.15 is open, serving as the mixing inlet 5.1, while the other end face is closed. From the mixing inlet 5.1, the mobile horizontal feeder 5.15 consists of a screening section and a discharge section. The screening section uses a screen, and the discharge section has gaps formed by widely spaced rods to allow material discharge. The inner wall of the mobile horizontal feeder 5.15 is equipped with spiral conveying blades. When the mobile horizontal feeder 5.15 rotates, the spiral conveying blades feed material from the mixing inlet 5.1 to the discharge section. An inclined feeding screen pipe 5.1... The inlet of 6 is located below the discharge section of the mobile horizontal feeder 5.15. A fixed guide pipe 5.17 is installed between the inlet of the inclined feeding screen pipe 5.16 and the discharge section of the mobile horizontal feeder 5.15. The guide pipe 5.17 does not contact the inclined feeding screen pipe 5.16 or the mobile horizontal feeder 5.15. The outlet of the inclined feeding screen pipe 5.16 extends into the center opening of one end face of the horizontal drum screen 5.6 as a mixing outlet. The mesh size of the inclined feeding screen pipe 5.16 is the same as that of the screening section of the mobile horizontal feeder 5.15.

[0049] The included angle between the axes of the mobile horizontal feeder 5.15 and the inclined feeding screen 5.16 is determined by the material. The top teeth of the second bevel gear ring 5.19 on the inclined feeding screen 5.16 are horizontal, providing the conditions for meshing with the second spur gear 5.20. The mobile horizontal feeder 5.15, the inclined feeding screen 5.16, and the horizontal drum screen 5.6 share a common drive system. The outer ring of the horizontal drum screen 5.6 is provided with a first spur gear ring 5.9, the outer ring of the mobile horizontal feeder 5.15 is provided with a second spur gear ring 5.18, and the outer ring of the inclined feeding screen 5.16 is provided with a second bevel gear ring 5.19. A first drive motor 5.11 is mounted on the mobile frame 5.5. The output shaft of the first drive motor 5.11 is equipped with a first spur gear 5.13 that meshes with the first spur gear ring 5.9 and a second spur gear 5.20 that meshes with both the second bevel gear ring 5.19 and the second spur gear ring 5.18.

[0050] The mobile horizontal feeder is used to replace the head chute, transfer and transport materials, and reduce the height (because the height is limited underground). It has four characteristics: (1) The height is reduced, which is suitable for underground use; (2) The rotational motion is suitable for belt conveyors (telescopic conveyor line 4) to continuously transport materials without clogging; (3) The material rotates, passes through the screen, and is transported in the cylinder, which makes the material fall, hit, vibrate and move in the cylinder, making it less likely to clog the screen holes, improving the screening rate and reducing the amount of material transported; (4) The mobile horizontal feeder 5.15 has spiral conveying blades inside, which help push the material to the horizontal drum screen 5.6.

[0051] Example 3 This embodiment provides a filling method for fully mechanized mining faces based on the integrated underground coal gangue transportation, crushing, screening, storage, distribution and loading machine of Embodiment 1 or Embodiment 2.

[0052] Table 2 shows the composition of an integrated underground coal and gangue transportation, crushing, screening, storage, distribution, and loading machine; like Figure 21 As shown: Assembled horizontal coal bunkers 16 (assembly-type horizontal coal bunkers 16 adopt the underground horizontal assembled gangue storage device applied for by the utility model patent holder Zu Ke in 2021, authorization announcement number CN215248250U) and an underground integrated coal gangue transportation, crushing, screening, storage, distribution, and loading machine 17 are respectively arranged in the two roadways located at both ends of the fully mechanized mining face 15. The coal mined from the fully mechanized mining face 15 is stored and transported through the assembled horizontal coal bunkers. The gangue from underground mining or the gangue returned to the mine from the surface (gangue washed at the coal washing plant → gangue transport system at the surface → vertical delivery to the auxiliary shaft) is crushed, screened, stored, and proportioned by the underground integrated coal gangue transport, crushing, screening, storage, distribution and loading machine 17, and then loaded onto the coal gangue concrete mixer truck 14. The coal gangue concrete mixer truck 14 mixes the material into coal gangue concrete and pumps it to the goaf, realizing the coordination of mining at the working face and backfilling of the goaf, and the synchronization of coal output and gangue backfilling.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated machine for underground coal gangue transportation, crushing, screening, storage, distribution, and loading, characterized in that: It includes a modular horizontal storage bin (1), an upper bin belt conveyor (2), a discharge scraper conveyor (3), a telescopic conveyor line (4), and a mobile screening and feeding integrated machine (5); the modular horizontal storage bin (1) includes linearly arranged unit bins (1.1), which are divided into fine material bins (1.1.1), coarse material bins (1.1.2), and large material bins (1.1.3) according to their storage function; the unit bins (1.1) in the modular horizontal storage bin (1) are arranged in a cycle of fine material bins (1.1.1), coarse material bins (1.1.2), and large material bins (1.1.3); The inlet (1.2) of the unit bin (1.1) is at the top and the outlet (1.3) is at the bottom; the assembled horizontal storage bin (1) is provided with a lower track (6) in the same direction as the unit bin (1.1); the mobile screening and feeding machine (5) is mounted on the lower track (6) and can move along the lower track (6); the receiving part of the upper bin belt conveyor (2) is located at the upper processing system, the telescopic conveyor (4) is mounted on the lower track (6), the fixed end of the telescopic conveyor (4) is connected to the upper bin belt conveyor (2), and the movable end of the telescopic conveyor (4) can extend and retract with the mobile screening and feeding machine (5); The mobile screening and feeding integrated machine (5) is equipped with a mixing inlet (5.1), a fine screening section (5.2), a coarse screening section (5.3), and a tailings outlet (5.4) in sequence. The mixing inlet (5.1) is located at the unloading point of the telescopic conveyor line (4). The range of the fine screening section (5.2), the coarse screening section (5.3), and the tailings outlet (5.4) corresponds to the inlet (1.2) of the fine material bin (1.1.1), the coarse material bin (1.1.2), and the large material bin (1.1.3). When the mixed material entering the mixing inlet (5.1) passes through the fine screening section (5.2), the fine material falls into the fine material bin (1.1.1). When it passes through the coarse screening section (5.3), the coarse material falls into the coarse material bin (1.1.2). Finally, the remaining tailings fall into the large material bin (1.1.3). The discharge scraper conveyor (3) passes under the discharge port (1.3) of the unit bin (1.1) to send the material discharged from the unit bin (1.1) into the next stage of the processing system.

2. The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine according to claim 1, characterized in that: Above the telescopic conveyor line (4) and the mobile screening and feeding machine (5) is an upper track (7), which is parallel to the lower track (6). A cable trolley (8) and multiple cable trolleys (9) are suspended on the upper track (7). The cable (10) that supplies power to the telescopic conveyor line (4) and the mobile screening and feeding machine (5) is connected to the cable trolleys (9) in sequence, then coiled on the cable trolley (8), and then connected to the telescopic conveyor line (4) and the mobile screening and feeding machine (5).

3. The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine according to claim 2, characterized in that: The upper track (7) is made of H-beams; The cable-hauling trolley (8) includes a first hanger (8.1). The first hanger (8.1) is slidably clamped onto the upper track (7) by two rows of first rollers (8.2) located in the abdominal cavity on both sides of the upper track (7). The first rollers (8.2) are driving rollers. The first rollers (8.2) in the same row are driven by a chain (8.6). One of the first rollers (8.2) is connected to a drive motor. The cable-hauling trolley (8) can move autonomously on the upper track (7). A horizontally rotatable drum hanger (8.3) is hinged below the first hanger (8.1). A horizontal cable drum (8.4) is installed on the drum hanger (8.3). The cable drum (8.4) has an internal external rotor drum motor (8.5). The external rotor drum motor (8.5) can drive the cable drum (8.4) to rotate for winding and unwinding. The cable drum (8.4) is divided into multiple cable grooves by annular partitions (8.7) distributed along the axial direction. The cable trolley (9) includes a second hanger (9.1), which is slidably clamped on the upper track (7) by two rows of second rollers (9.2) located in the abdominal cavity on both sides of the upper track (7). The second rollers (9.2) are driven rollers. The cable trolley (9) is dragged by the cable trolley (8) through the cable (10). The second hanger (9.1) is equipped with a wire pressing arc plate (9.3), and the cable (10) is sandwiched between the upper and lower wire pressing arc plates (9.3).

4. The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine according to any one of claims 1 to 3, characterized in that: The mobile screening and feeding integrated machine (5) includes a mobile frame (5.5), a mobile feeder and a horizontal drum screen (5.6); the mobile frame (5.5) is slidably mounted on the lower track (6); The mobile feeder and the horizontal drum screen (5.6) are rotatably mounted on the mobile frame (5.5); the mobile feeder is supported by rollers on the mobile frame (5.5), and the horizontal drum screen (5.6) is supported by a first horizontal roller (5.8) on the mobile frame (5.5). One side of the mobile feeder is a mixing inlet (5.1) and the other side is a mixing outlet. The mixing outlet is smaller than the mixing inlet (5.1). The mixing outlet extends into the center opening of one end face of the horizontal drum screen (5.6). The other end face of the horizontal drum screen (5.6) is provided with a tail material outlet (5.4). The mobile feeder serves as the fine screening section (5.2), and the horizontal drum screen (5.6) serves as the coarse screening section (5.3). The inner wall of the horizontal drum screen (5.6) is equipped with spiral conveying blades. When the horizontal drum screen (5.6) rotates, the spiral conveying blades feed material from one side of the mobile feeder to the tail material outlet (5.4). The movable end of the telescopic conveyor line (4) is connected to the movable frame (5.5).

5. The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine according to claim 4, characterized in that: The movable frame (5.5) moves on the lower track (6) via the third roller (5.14); the outer side of the lower track (6) is provided with a rack (11) parallel to it, and the rack (11) is fixedly connected to the lower track (6) by bolts. The movable frame (5.5) is equipped with a drive gear (12) that meshes with the rack (11), and the drive gear (12) is connected to the walking external rotor motor.

6. The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine according to claim 4, characterized in that: The mobile feeder is a mobile inclined feeder (5.22); the upper port of the mobile inclined feeder (5.22) is a mixing inlet (5.1), and the lower port is a mixing outlet; the mobile inclined feeder (5.22) is supported by the first inclined towing wheel (5.7) on the mobile frame (5.5); The mobile inclined feeder (5.22) and the horizontal drum screen (5.6) share a drive system. The outer ring of the horizontal drum screen (5.6) is provided with a first spur gear ring (5.9), and the outer ring of the mobile inclined feeder (5.22) is provided with a first bevel gear ring (5.10). The mobile frame (5.5) is equipped with a first drive motor (5.11). The output shaft of the first drive motor (5.11) is equipped with a first spur gear (5.13) that meshes with the first spur gear ring (5.9) and a first bevel gear (5.12) that meshes with the first bevel gear ring (5.10).

7. The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine according to claim 4, characterized in that: The mobile feeder is a mobile horizontal feeder (5.15). An inclined feeding screen pipe (5.16) and a guide pipe (5.17) are provided between the mobile horizontal feeder (5.15) and the horizontal drum screen (5.6). The mobile horizontal feeder (5.15) is supported by the second horizontal towing wheel on the mobile frame (5.5). The inclined feeding screen pipe (5.16) is supported by the second inclined towing wheel on the mobile frame (5.5). One end face of the mobile horizontal feeder (5.15) is open, serving as the mixing inlet (5.1), while the other end face is closed. From the mixing inlet (5.1), the mobile horizontal feeder (5.15) consists of a screening section and a discharge section. The inner wall of the mobile horizontal feeder (5.15) is equipped with spiral conveying blades. When the mobile horizontal feeder (5.15) rotates, the spiral conveying blades feed material from the mixing inlet (5.1) to the discharge section. An inclined feeding screen pipe ( The inlet of the inclined feeding screen (5.16) is located below the discharge section of the mobile horizontal feeder (5.15). A fixed guide pipe (5.17) is set between the inlet of the inclined feeding screen (5.16) and the discharge section of the mobile horizontal feeder (5.15). The outlet of the inclined feeding screen (5.16) extends into the center hole of one end face of the horizontal drum screen (5.6) as a mixing outlet. The mesh size of the inclined feeding screen (5.16) is the same as that of the screening section of the mobile horizontal feeder (5.15). The mobile horizontal feeder (5.15), the inclined feeding screen (5.16), and the horizontal drum screen (5.6) share a common drive system. The outer ring of the horizontal drum screen (5.6) is provided with a first spur tooth ring (5.9), the outer ring of the mobile horizontal feeder (5.15) is provided with a second spur tooth ring (5.18), and the outer ring of the inclined feeding screen (5.16) is provided with a second bevel tooth ring (5.19). A first drive motor (5.11) is installed on the mobile frame (5.5). The output shaft of the first drive motor (5.11) is equipped with a first spur gear (5.13) that meshes with the first spur tooth ring (5.9) and a second spur gear (5.20) that meshes with both the second bevel tooth ring (5.19) and the second spur tooth ring (5.18).

8. The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine according to claim 5, characterized in that: The upstream processing system located at the receiving section of the upper belt conveyor (2) is a mobile coal gangue grading crusher (18); the upper belt conveyor (2) includes a belt storage device (2.1), a tail roller (2.2) and a top roller frame (2.3); the conveyor belt of the upper belt conveyor (2) starts from the tail roller (2.2), passes through the upper roller of the top roller frame (2.3), the telescopic conveyor line (4), the lower roller of the top roller frame (2.3), and the belt storage device (2.1) before returning to the tail roller (2.2); The next stage of processing system located at the discharge point of the discharge scraper conveyor (3) is the coal gangue concrete mixer truck (14).

9. The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine according to claim 8, characterized in that: The telescopic conveyor line (4) includes a head roller (4.1) and a series of sliding idler roller units; The roller frame of the head roller (4.1) is supported by a lifting electric cylinder (4.6) that is slidably mounted on the lower track (6), and the lifting electric cylinder (4.6) is connected to the moving frame (5.5); The sliding idler unit includes an idler hanger (4.2), which is mounted on the lower track (6) via the fourth rollers (4.3) on both sides. Two upper and lower spiral idlers (4.4) are arranged on the idler hanger (4.2). The conveyor belt of the upper warehouse belt conveyor (2) is delivered from the upper spiral idler (4.4) and then turned by the head roller (4.1) and returned from the lower spiral idler (4.4). The sliding idler units are connected to each other by a rope (4.5). The first sliding idler unit is connected to the lifting cylinder (4.6).

10. The integrated underground coal gangue transportation, crushing, screening, storage, distribution, and loading machine according to claim 1, characterized in that: A metering gate feeder (13) is installed at the discharge port (1.3) of the unit bin (1.1). The metering gate feeder (13) includes an end plate (13.1), a rotating shaft (13.2) and blades (13.3). The two end plates (13.1) are arranged opposite to each other. The rotating shaft (13.2) passes through the two end plates (13.1) and is rotatably connected to the unit bin (1.1) and the uniform speed drive mechanism. Multiple blades (13.3) are evenly distributed around the rotating shaft (13.2) and are fixedly connected to the end plate (13.1) and the rotating shaft (13.2). The end plate (13.1), the rotating shaft (13.2) and two adjacent blades (13.3) form a metering discharge chamber.

Images