Caving type solid filling support based on caving coal hydraulic support

Abstract

The utility model relates to the technical field of coal mining, disclose a top -down type solid filling support based on top coal caving hydraulic support, including roof beam and base, the base one side is installed with the lug plate, the base one side is connected with the connecting seat through the lug plate, install the bracket on the connecting seat, the connecting seat and the bracket constitute the lower shield roof beam, and the lower shield roof beam is used for filling, the roof beam one side is installed with the side roof beam, the side roof beam one side is installed with the tail beam and the plugboard, the side roof beam, tail beam and plugboard constitute the upper shield roof beam, and the upper shield roof beam is used for protecting the rear equipment of support, the utility model discloses a top coal caving support tail beam part is reformed, makes the coal gangue along top -down type solid filling support tail beam steady down in the mining process, the bracket is connected with the connecting seat at the back of top -down type solid filling support base, to convey the gangue to the mined -out area to supplement, and top -down type solid filling not only relieves the influence of coal gangue to the environment, and also has promoted the filling efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining technology, specifically, it relates to a top-caving solid filling support based on a top-coal caving hydraulic support. Background Technology

[0002] Coal gangue is a solid waste discharged during the coal mining and washing processes. It is a blackish-gray rock with a low carbon content and harder than coal that is associated with coal seams during the coal formation process. It includes gangue from tunneling, gangue extracted from the roof, floor and interlayers during mining, and gangue from coal washing.

[0003] During coal mining, a large amount of coal gangue is generated. Coal gangue has long been the largest solid waste in terms of both quantity and volume. Large quantities of coal gangue easily cause a series of environmental problems such as air pollution, soil pollution, and water resource loss. Therefore, the disposal of coal gangue has become an important environmental protection issue. An innovative solution is to effectively dispose of coal gangue generated during coal mining without bringing it to the surface. In view of this, this utility model proposes a top-caving solid filling support based on a hydraulic top-caving support, which can significantly increase the mine's filling capacity without increasing the face size, meeting the needs of large-scale underground gangue discharge and parallel mining and filling operations. Utility Model Content

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0005] A top-caving solid filling support based on a top-coal caving hydraulic support includes a top beam and a base. An ear plate is installed on one side of the base, and a connecting seat is connected to the same side of the base via the ear plate. A bracket is installed on the connecting seat. The connecting seat and the bracket form a lower shield beam, which is used for filling. A side guard beam is installed on one side of the top beam, and a tail beam and insert plate are installed on one side of the side guard beam. The side guard beam, tail beam, and insert plate form an upper shield beam, which is used to protect the equipment at the rear of the support. A first column and a second column are installed on the top of the base, and the top ends of the first and second columns are connected to the bottom of the top beam.

[0006] In a preferred embodiment of this utility model, a top beam jack is installed at the bottom of the top beam, and a pushing jack is installed on the base.

[0007] In a preferred embodiment of this utility model, a plate jack is installed on the inner side of the tail beam, and the output shaft of the plate jack is connected to the side of the plate.

[0008] In a preferred embodiment of this utility model, the connecting seat is designed in the shape of a "boot". The front end of the connecting seat "boot" is fixedly hinged to the rear part of the base. The connecting seat "boot" cylinder is fixedly connected to the bracket "leg" by a pin. Four rows of hinge holes are provided at the upper and lower positions of the connecting seat "boot" cylinder.

[0009] In a preferred embodiment of this utility model, the connecting seat and the bracket are mainly made of Q460 high alloy structural steel. The bracket is used to support the perforated bottom discharge scraper conveyor. Baffles are provided at the front and rear of the upper part of the bracket, and the baffles are used to limit the forward and backward movement range of the perforated scraper conveyor.

[0010] In a preferred embodiment of this utility model, a left front connecting rod and a right front connecting rod are installed on the top of the base, and the top ends of the left front connecting rod and the right front connecting rod are connected to the bottom of the side guard beam. A rear connecting rod is installed on the base, and the top end of the rear connecting rod is connected to the bottom of the side guard beam.

[0011] In a preferred embodiment of this utility model, a tail beam jack is installed on the rear connecting rod, and the output end of the tail beam jack is connected to the bottom of the tail beam.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention modifies the tail beam of the top coal caving support, allowing coal gangue to fall smoothly along the tail beam of the top coal caving solid filling support during mining. A bracket and connecting seat are connected at the rear of the base of the top coal caving solid filling support to transport supplementary gangue to the goaf. The top coal caving solid filling not only alleviates the environmental impact of coal gangue but also improves filling efficiency.

[0014] This utility model, with its structural principle conforming to the requirements of a filling support, can achieve parallel mining and filling, improve filling efficiency, and meet the needs of on-site filling. An upper shield beam, composed of side guard beams, a tail beam, and insert plates, protects the equipment behind the support, ensuring safe filling operations and maintaining working space. The upper shield beam is connected to the top beam, and its angle can be adjusted according to the movement of the overburden during excavation. Simultaneously, it can shield the lower shield beam, achieving stable roof lowering. The lower shield beam, composed of a bracket and a connecting seat, and connected to the base, can bear the rock blocks that have entered from behind the upper shield beam, while also supporting its bottom-discharge waste rock scraper and shielding the filling waste rock, ensuring sufficient filling space.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] In the attached diagram:

[0017] Figure 1This is a schematic diagram of the main structure of the top-coal caving type solid filling support based on the hydraulic support for top-coal caving according to this utility model.

[0018] Figure 2 This is a schematic diagram of the base structure of the top-coal caving type solid filling support based on the hydraulic support for top-coal caving of this utility model.

[0019] Figure 3 This is a schematic diagram of the connecting seat structure of the top-coal caving type solid filling support based on the hydraulic support for top-coal caving according to this utility model;

[0020] Figure 4 This is a schematic diagram of the bracket structure of the top-coal caving type solid filling support based on the hydraulic support for top-coal caving according to this utility model.

[0021] In the diagram: 1. Top beam; 2. Base; 3. Top beam jack; 4. Push jack; 5. Column 1; 6. Column 2; 7. Side guard beam; 8. Left front connecting rod; 9. Right front connecting rod; 10. Rear connecting rod; 11. Tail beam; 12. Insert plate; 13. Insert plate jack; 14. Connecting seat; 15. Bracket; 16. Tail beam jack; 17. Ear plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0023] like Figures 1 to 4 As shown

[0024] A top-caving solid filling support based on a top-coal caving hydraulic support includes a top beam 1 and a base 2. An ear plate 17 is installed on one side of the base 2, and a connecting seat 14 is connected to the other side of the base 2 via the ear plate 17. A bracket 15 is installed on the connecting seat 14. The connecting seat 14 and the bracket 15 constitute a lower shield beam, which is used for filling and can bear the rock blocks that have entered from the rear of the upper shield beam. It also supports the bottom-discharge scraper for waste rock and protects the filling waste rock, ensuring filling space. The connecting seat 14 is designed in a "boot" shape. The front end of the "boot" of the connecting seat 14 is fixedly hinged to the rear of the base 2. The "boot" cylinder of the connecting seat 14 is fixedly connected to the "leg" of the bracket 15 via a pin, ensuring the connection seat 14 and the bracket... The bracket 15 maintains an integral structure with the support frame for greater stability. The connecting seat 14 has four rows of hinge holes at the top and bottom of the "shoe" section, allowing adjustment of the bracket 15's height according to the support frame's height, thus adjusting the filling and discharging height. Both the connecting seat 14 and bracket 15 are primarily made of Q460 high-alloy structural steel. The bracket 15 supports the multi-hole bottom-discharge scraper conveyor. During filling, the bracket 15 bears not only the weight of the conveyed gangue and the bottom-discharge scraper conveyor, but also the dynamic load caused by mechanical vibration. Baffles are installed at the front and rear of the upper part of the bracket 15 to limit the forward and backward movement of the multi-hole scraper conveyor, ensuring safety in case of equipment falls. Simultaneously, the rear baffle... To a certain extent, it also serves to block the back rock. A side guard beam 7 is installed on one side of the top beam 1, and a tail beam 11 and a plate 12 are installed on one side of the side guard beam 7. The side guard beam 7, tail beam 11, and plate 12 constitute the upper shield beam. The structural components are mainly made of Q460 high alloy structural steel. The upper shield beam is used to protect the equipment behind the support. The main functions of the tail beam 11 and the side guard beam 7 are to support the space behind the equipment, prevent falling rock or coal from damaging the equipment, and ensure the space for backfilling operations. The main function of the side guard beam 7 is to seal the space between the supports, protect the equipment, and guide and adjust the posture of the support when moving the support. The main function of the plate 12 is to adjust the position of the tail beam 11 when necessary. The dynamic angle crushes larger coal blocks at the rear, increasing the range of the rear safety space. The design of the upper shield beam mainly considers the needs of the lower shield space and the necessary functions of protecting equipment and personnel safety. When designing the tail beam 11 structure, the width must be consistent with the top beam 1, and the hinge gap must be reasonable. The length of the tail beam 11 and the insert plate 12 must be designed based on multiple factors such as the working characteristics, working range and size of the rear filling equipment. At the same time, it must also meet the space requirements of the multi-hole bottom discharge scraper conveyor under normal working conditions and during the frame shifting process. The top of the base 2 is equipped with column 5 and column 6, and the top of column 5 and column 6 are connected to the bottom of the top beam 1.

[0025] In a specific implementation, a top beam jack 3 is installed at the bottom of the top beam 1, a push jack 4 is installed on the base 2, a plate jack 13 is installed on the inner side of the tail beam 11, and the output shaft of the plate jack 13 is connected to the side of the plate 12. A left front connecting rod 8 and a right front connecting rod 9 are installed on the top of the base 2, and the top ends of the left front connecting rod 8 and the right front connecting rod 9 are connected to the bottom of the side guard beam 7. A rear connecting rod 10 is installed on the base 2, and the top end of the rear connecting rod 10 is connected to the bottom of the side guard beam 7. A tail beam jack 16 is installed on the rear connecting rod 10, and the output end of the tail beam jack 16 is connected to the bottom of the tail beam 11. Through the tail beam jack 16 and the plate jack 13, the tail beam 11 and the plate 12 can be adjusted to a safe working height according to actual needs during specific operation.

[0026] The implementation principle of the top-coal caving hydraulic support-based top-coal caving solid filling support in this embodiment is as follows:

[0027] In practical use, the upper shield beam, composed of side guard beam 7, tail beam 11, and insert plate 12, is connected to the top beam 1. The angle can be adjusted according to the movement of the overburden during excavation. At the same time, it can protect the lower shield beam, achieving stable roof lowering. The main functions of the tail beam 11 and side guard beam 7 are to support the equipment space behind the support, prevent falling rock or coal from damaging the equipment, and ensure the space for backfilling operations. The main function of the side guard beam 7 is to seal the space between the supports, protect the equipment, and guide and adjust the posture of the support during the movement of the support. The main function of the insert plate 12 is to crush larger coal blocks behind the support when necessary, according to the swing angle of the tail beam 11, to increase the range of the safety space behind. The design of the upper shield beam mainly considers the needs of the lower shield space and the necessary functions of protecting the equipment and personnel safety. With the tail beam jack 16 and insert plate jack 13, the tail beam 11 and insert plate 12 can be adjusted to the safe working height according to actual needs during specific operation.

[0028] The lower shield beam, composed of bracket 15 and connecting seat 14, is connected to the base 2. It can support the rock fragments that have entered from the rear of the upper shield beam, while also supporting its bottom-discharge scraper and shielding the backfilling gangue to ensure sufficient filling space. The connecting seat 14 is designed in a "boot" shape, with its front end hinged to the rear of the support base 2. The "boot" sleeve of the connecting seat 14 is fixedly connected to the "leg" of the bracket 15 via a pin, ensuring that the connecting seat 14, bracket 15, and support maintain an integrated structure, making it more stable. The connecting seat 14 has four rows of hinge holes at the top and bottom of the "shoe" cylinder, which can adjust the height of the bracket 15 according to the height of the support, thereby achieving the effect of adjusting the filling and discharging height. During the filling process, the bracket 15 not only bears the weight of the conveyed gangue and the weight of the bottom discharge scraper conveyor, but also bears the dynamic load caused by mechanical vibration. By setting baffles at the front and rear of the upper part of the bracket 15, the forward and backward movement range of the multi-hole scraper conveyor can be limited, ensuring the safety of the equipment falling. At the same time, the rear baffle also plays a role in blocking the gangue behind to a certain extent.

Claims

1. A top-caving solid filling support based on a top-coal caving hydraulic support, comprising a top beam (1) and a base (2), characterized in that, The base (2) is equipped with an ear plate (17) on one side, and a connecting seat (14) is connected to the base (2) via the ear plate (17). A bracket (15) is installed on the connecting seat (14). The connecting seat (14) and the bracket (15) constitute a lower shield beam, which is used for filling. A side guard beam (7) is installed on one side of the top beam (1). A tail beam (11) and a insert plate (12) are installed on one side of the side guard beam (7). The side guard beam (7), the tail beam (11), and the insert plate (12) constitute an upper shield beam, which is used to protect the equipment at the rear of the support. A first column (5) and a second column (6) are installed on the top of the base (2). The top ends of the first column (5) and the second column (6) are connected to the bottom of the top beam (1).

2. The top-caving solid filling support based on a top-coal caving hydraulic support according to claim 1, characterized in that, A top beam jack (3) is installed at the bottom of the top beam (1), and a push jack (4) is installed on the base (2).

3. The top-caving solid filling support based on a top-coal caving hydraulic support according to claim 1, characterized in that, A plate jack (13) is installed on the inner side of the tail beam (11), and the output shaft of the plate jack (13) is connected to the side of the plate (12).

4. The top-caving solid filling support based on a top-coal caving hydraulic support according to claim 1, characterized in that, The connecting seat (14) is designed in the shape of a "boot". The front end of the connecting seat (14) "boot" is fixedly hinged to the rear part of the base (2). The connecting seat (14) "boot" cylinder is fixedly connected to the bracket (15) "leg" by a pin. The connecting seat (14) "boot" cylinder is provided with four rows of hinge holes at the top and bottom positions.

5. The top-caving type solid filling support based on a top-coal caving hydraulic support according to claim 1, characterized in that, The connecting seat (14) and bracket (15) are mainly made of Q460 high alloy structural steel. The bracket (15) is used to support the multi-hole bottom discharge scraper conveyor. The bracket (15) is equipped with baffles at the front and rear of the upper part, and the baffles are used to limit the forward and backward movement range of the multi-hole scraper conveyor.

6. The top-caving solid filling support based on a top-coal caving hydraulic support according to claim 1, characterized in that, The base (2) is equipped with a left front link (8) and a right front link (9) at the top. The top ends of the left front link (8) and the right front link (9) are connected to the bottom of the side guard beam (7). The base (2) is equipped with a rear link (10) at the top end of the rear link (10) and the bottom of the side guard beam (7).

7. The top-caving solid filling support based on a top-coal caving hydraulic support according to claim 6, characterized in that, A tail beam jack (16) is installed on the rear connecting rod (10), and the output end of the tail beam jack (16) is connected to the bottom of the tail beam (11).

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