A hydraulic support system for backfill mining

Abstract

The present invention discloses a hydraulic support system for filling mining, which includes a filling support, a roof control support, and a fully-mechanized mining support connected in sequence; the filling support is used for the support of the working face and the shielding of the filling paste; the roof control support is used for the support of the coal seam roof between the filling working face and the fully-mechanized mining working face, and the fully-mechanized mining support is used for the support of the fully-mechanized mining working face. With the flexible structure design of the roof control support, the present invention provides flexible support for the coal seam roof between the filling support and the fully-mechanized mining support while ensuring that the hydraulic support system can realize the independent forward movement of the filling support and the fully-mechanized mining support, thereby effectively avoiding the harm to the operators under the hydraulic support caused by the caving roof, and at the same time avoiding the accumulation of gangue in the support due to the separate forward movement of the components of the hydraulic support system, reducing the workload of gangue treatment in the hydraulic support, and providing guarantee for the safe operation of the filling working face.

Description

Technical Field

[0001] The invention belongs to the technical fields of mine filling and underground coal mine support, and particularly relates to a hydraulic support system for filling mining. Background Art

[0002] In the field of mine filling mining, especially in the field of underground coal mine filling mining, the filling hydraulic support system used in the fully mechanized mining face mostly consists of an integrated fully mechanized support and a filling support. The movement of the fully mechanized support drives the forward movement of the filling support. However, if parallel operation of fully mechanized support and filling support is to be achieved, the fully mechanized support and the filling support must be able to move separately. However, to prevent the roof from caving during the forward movement of the hydraulic support system and threatening the safety of personnel below the support, certain support must be provided for the coal seam roof during the lowering of the hydraulic support roof beam and the forward movement of each support in the hydraulic support system. In the prior art, there is a lack of a roof protection device that can provide good support for the roof when each module in the hydraulic support system moves forward separately. Summary of the Invention

[0003] To solve the above problems, the invention proposes a hydraulic support system for filling mining to solve the technical problem that the coal seam roof between the supports cannot be effectively supported during the separate forward movement of the supports in the existing hydraulic support system for filling mining.

[0004] To solve the above technical problems, the invention is implemented by adopting the following technical solutions:

[0005] A hydraulic support system for filling mining includes a filling support, a fully mechanized support, and also includes a roof control support. The filling support, the roof control support, and the fully mechanized support are connected and arranged in sequence;

[0006] The filling support is used for the support of the filling working face and the shielding of the filling paste; the roof control support is used for the support of the coal seam roof between the filling working face and the fully mechanized working face, and the fully mechanized support is used for the support of the fully mechanized working face.

[0007] The invention also has the following technical features:

[0008] Specifically, the filling support includes a filling support base and a filling support roof beam located above the filling support base; at least two filling support columns are arranged on the filling support base, and the top end of each filling support column is connected to the lower surface of the filling support roof beam; a paste lower baffle is vertically arranged on the upper surface of the end of the filling support base far from the roof control support; a paste upper baffle is also arranged on the side of the filling support roof beam far from the roof control support, and a paste upper baffle telescopic support rod for supporting the paste upper baffle is also arranged on the bottom surface of the filling support roof beam;

[0009] The fully-mechanized mining support includes a fully-mechanized mining support base and a fully-mechanized mining support roof beam located above the fully-mechanized mining support base. At least two fully-mechanized mining support columns are arranged on the fully-mechanized mining support base, and the top end of each fully-mechanized mining support column is connected to the lower surface of the fully-mechanized mining support roof beam. A fully-mechanized mining support front baffle is further arranged on one side of the fully-mechanized mining support roof beam away from the roof control support. A fully-mechanized mining support front baffle telescopic support rod for supporting the fully-mechanized mining support front baffle is also arranged on the lower surface of the fully-mechanized mining support roof beam;

[0010] The roof control support includes a roof control support base and a composite support roof beam located above the roof control support base. At least two roof control support columns for supporting the composite support roof beam are arranged on the roof control support base; A conveyor belt is further arranged above the composite support roof beam. One end of the conveyor belt is wound around the first conveyor mechanism through a first auxiliary conveyor mechanism arranged on the bottom surface of the fully-mechanized mining support roof beam, and the other end of the conveyor belt is wound around the second conveyor mechanism through a second auxiliary conveyor mechanism arranged on the bottom surface of the filling support roof beam;

[0011] The first conveyor mechanism is arranged on the fully-mechanized mining support base, and the second conveyor mechanism is arranged on the filling support base. The first auxiliary conveyor mechanism and the second auxiliary conveyor mechanism have the same structure and are arranged in mirror symmetry;

[0012] The filling support base is connected to the roof control support base through a filling support forward movement drive rod, and the roof control support base is connected to the fully-mechanized mining support base through a roof control support forward movement drive rod.

[0013] Furthermore, the composite support roof beam includes a main roof beam and a telescopic auxiliary beam. The telescopic auxiliary beam is placed in a chute arranged in the main roof beam and can be telescoped along the length direction of the main roof beam under the drive of a telescopic auxiliary beam hydraulic drive rod.

[0014] Furthermore, the first conveyor mechanism includes a reel support. A reel central shaft is arranged on the reel support, and a reel body is sleeved outside all the reel central shafts; The conveyor belt is wound around the reel body.

[0015] Furthermore, the conveyor belt includes a plurality of connected chain plate bodies. A plurality of protruding parts are arranged on the side surface of the chain plate body, and a groove is arranged between adjacent protruding parts. Adjacent chain plate bodies are in plug-in fit through the protruding parts and the grooves.

[0016] Furthermore, a drive motor for driving the reel body to rotate is arranged in the reel body.

[0017] Further, a reverse stop assembly for preventing the reverse rotation of the reel central shaft is provided inside the reel body. The reverse stop assembly includes a reverse stop gear, a reverse stop locking tongue, and an adjusting handle. The reverse stop gear is coaxially sleeved on the reel central shaft. One end of the adjusting handle is connected to the reel bracket, and the other end is connected to the reverse stop locking tongue. The adjusting handle is used to adjust the position of the reverse stop locking tongue.

[0018] Further, a movable roof of the filling support is provided between the top beam of the filling support and the upper paste baffle. A telescopic rod of the movable roof of the filling support is fixedly installed on the lower surface of the top beam of the filling support. The movable roof of the filling support can move along the length direction of the top beam of the filling support under the drive of the telescopic rod of the movable roof of the filling support.

[0019] Further, one end of the top beam of the filling support close to the composite support top beam is also rotatably connected with a first lapping plate, and the first lapping plate can be lapped with the conveyor belt.

[0020] Further, a tail baffle of the paste is provided at the bottom end of the upper paste baffle, and the upper paste baffle and the tail baffle of the paste are connected by a tail plate telescopic column.

[0021] Further, the lower paste baffle can move vertically under the drive of a vertical adjusting mechanism provided on the filling support base, so as to adjust the vertical distance between the top end of the lower paste baffle and the upper surface of the filling support base;

[0022] The lower paste baffle includes a baffle base provided with an inner cavity and a lifting baffle. The lower end of the lifting baffle is inserted into the inner cavity of the baffle base through the top opening of the baffle base. A connecting member is provided on the side wall of the upper end of the lifting baffle, and the connecting member is connected to the top end of the vertical adjusting mechanism.

[0023] Further, a movable roof of the fully-mechanized mining support is provided between the top beam of the fully-mechanized mining support and the front baffle of the fully-mechanized mining support. A telescopic rod of the movable roof of the fully-mechanized mining support is fixedly installed on the lower surface of the top beam of the fully-mechanized mining support. The movable roof of the fully-mechanized mining support can move along the length direction of the top beam of the fully-mechanized mining support under the drive of the telescopic rod of the movable roof of the fully-mechanized mining support.

[0024] Further, a front tongue of the fully-mechanized mining support is provided at the bottom end of the front baffle of the fully-mechanized mining support, and the front baffle of the fully-mechanized mining support and the front tongue of the fully-mechanized mining support are connected by a telescopic column of the fully-mechanized mining support tail plate.

[0025] Further, one end of the top beam of the fully-mechanized mining support close to the composite support top beam is also rotatably connected with a second lapping plate, and the second lapping plate can be lapped with the conveyor belt.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] (1) The present invention includes a filling support, a roof control support, and a fully-mechanized mining support that are connected in sequence. Through the structural design of the roof control support, during the independent forward movement of the filling support and the fully-mechanized mining support, flexible support is provided for the coal seam roof between the filling support and the fully-mechanized mining support, effectively avoiding the harm that the caving roof may cause to the workers under the hydraulic support. At the same time, during the parallel operation of the fully-mechanized mining, the accumulation of gangue inside the support is avoided due to the independent forward movement of the filling support and the fully-mechanized mining support in the hydraulic support system. Thus, the workload of gangue treatment inside the hydraulic support can be effectively reduced, providing guarantee for the safe operation of the filling working face.

[0028] (2) Through structural design, the present invention appropriately increases the distance between the fully-mechanized mining working face and the filling working face that can operate in parallel in the filling mining working face, providing reserved time for the filling operation in the filling working face and also providing conditions for the forward movement of the fully-mechanized mining support in the fully-mechanized mining working face as the fully-mechanized mining working face moves. The parallel operation of coal mining in the fully-mechanized mining working face and paste filling in the filling working face is realized, improving the production capacity of the filling mining working face to a certain extent.

[0029] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the overall structural schematic diagram of the hydraulic support of the invention;

[0031] Figure 2 is the internal structural schematic diagram of the drum;

[0032] Figure 3 is the structural schematic diagram of the chain plate;

[0033] Figure 4 is the schematic diagram of the support effect of the present invention on the broken and soft roof of the coal seam;

[0034] Figure 5 is the partial enlarged view of the support effect of the present invention on the broken and soft roof of the coal seam;

[0035] Figure 6 is the schematic diagram of the support effect of the hydraulic support without the chain plate on the broken and soft roof of the coal seam.

[0036] Each label in the figure represents:

[0037] 1 - filling support, 2 - roof control support, 3 - fully-mechanized mining support, 4 - forward movement drive rod of the filling support, 5 - forward movement drive rod of the roof control support, 6 - first lap plate, 7 - second lap plate, 8 - tail plate telescopic column, 9 - vertical adjustment mechanism;

[0038] 11 - Filling support base, 12 - Filling support roof beam, 13 - Filling support column, 14 - Paste lower baffle, 15 - Paste upper baffle, 16 - Telescopic support rod for paste upper baffle, 17 - Movable roof plate of filling support, 18 - Telescopic support rod for movable roof plate of filling support, 19 - Paste tail baffle;

[0039] 21 - Roof control support base, 22 - Composite support roof beam, 23 - Roof control support column, 24 - Conveyor belt;

[0040] 31 - Fully mechanized mining support base, 32 - Fully mechanized mining support roof beam, 33 - Fully mechanized mining support column, 34 - Front baffle of fully mechanized mining support, 35 - Telescopic support rod for front baffle of fully mechanized mining support, 36 - Movable roof plate of fully mechanized mining support, 37 - Telescopic support rod for movable roof plate of fully mechanized mining support, 38 - Telescopic column for the tail plate of fully mechanized mining support, 39 - Front tongue of fully mechanized mining support;

[0041] 101 - First conveying mechanism, 102 - Second conveying mechanism, 121 - Second auxiliary conveying mechanism; 141 - Baffle base, 142 - Lifting baffle; 1421 - Connecting piece; 221 - Main roof beam, 222 - Telescopic auxiliary beam, 223 - Hydraulic driving rod for telescopic auxiliary beam; 241 - Chain plate body; 321 - First auxiliary conveying mechanism;

[0042] 1011 - Reel support, 1012 - Reel central axis, 1013 - Reel body, 1014 - Backstop assembly; 2411 - Protrusion, 2412 - Groove;

[0043] 10141 - Backstop gear, 10142 - Backstop tongue, adjusting handle - 10143.

[0044] The following further elaborates and explains the specific content of the present invention in conjunction with the accompanying drawings and specific embodiments. Specific embodiments

[0045] The following details the specific embodiments of the present invention in conjunction with the accompanying drawings of the specification. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present invention and are not intended to limit the present invention.

[0046] The terms "upper", "lower", "front", "rear", "top", "bottom", etc. used in the present invention indicate the orientation or positional relationship only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "Inner" and "outer" refer to the inside and outside of the corresponding component contour. The above terms should not be construed as limiting the present invention. The front and rear used in this solution are as Figure 2 shown.

[0047] In addition, ordinal numbers such as "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of such features.

[0048] In the present invention, unless otherwise specified, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] The following explains the technical terms related to the present utility model:

[0050] Coal mining face: The first production site in the process of coal mining production, which is mainly the place for production processes such as coal breaking, coal loading, coal transportation, support and goaf treatment.

[0051] Fully mechanized coal mining face: The full name is fully mechanized coal mining face, which is a kind of coal mining face and is the first production site in the process of coal mining production, where all production processes such as coal breaking, coal loading, coal transportation, support and goaf treatment are carried out mechanized.

[0052] Backfilling face: The place underground mainly engaged in production processes such as roof support in the working area, support for the space to be backfilled in the goaf, backfilling material transportation, and backfilling in the goaf, generally advancing forward closely following the coal mining face.

[0053] Backfilling mining face: The working place that combines the production processes of the backfilling face and the coal mining face at the same time.

[0054] It should be noted that all parts in the present invention, without special instructions, adopt parts known in the art. For example, the columns in the present invention can adopt existing hydraulic supports.

[0055] Embodiment

[0056] The present invention discloses a hydraulic support system for backfilling mining, which includes a backfilling support 1 and a fully mechanized coal mining support 3, and also includes a roof control support 2. The backfilling support 1, the roof control support 2 and the fully mechanized coal mining support 3 are connected and arranged in sequence;

[0057] The filling support 1 is used for the support of the filling working face and the shielding of the filling paste; the roof control support 2 is used for the support of the coal seam roof between the filling working face and the fully mechanized mining working face, and can also provide a buffer space for the forward movement of the filling support 1 and the fully mechanized mining support 3 to ensure that the filling support 1 and the fully mechanized mining support 3 can move forward independently. The fully mechanized mining support 3 is used for the support of the fully mechanized mining working face.

[0058] As a preferred embodiment of the present invention, the filling support 1 includes a filling support base 11 and a filling support roof beam 12 located above the filling support base 11. At least two filling support columns 13 are arranged on the filling support base 11, and the top end of each filling support column 13 is connected to the lower surface of the filling support roof beam 12; the filling support column 13 can realize the lifting of the filling support roof beam 12 by adjusting its own height, so as to realize the height adjustment of the filling support 1.

[0059] In this embodiment, the bottom end of the filling support column 13 is movably connected to the filling support base 11 by means of a pin shaft. Therefore, the included angle between the filling support column 13 and the filling support base 11 can be changed. When the filling support base 11 and the filling support roof beam 12 move forward out of sync, the filling support roof beam 12 can be tilted by rotating the pin shaft to reduce the possible risk that the filling support column 13 may fall due to force or the filling support roof beam 12 may be in danger due to the increase of its own frictional resistance. A paste lower baffle 14 is vertically arranged on the upper surface of the end of the filling support base 11 away from the roof control support 2. The paste lower baffle 14 is used for shielding the filling paste at the lower part behind the filling support to prevent the filling paste from entering the filling support from the lower part. A paste upper baffle 15 is also arranged on the side of the filling support roof beam 12 away from the roof control support, and a paste upper baffle telescopic support rod 16 for supporting the paste upper baffle 15 is also arranged on the bottom surface of the filling support roof beam 12; the paste upper baffle 15 is used for shielding the filling paste at the upper part behind the filling support, and the paste upper baffle telescopic support rod 16 can also adjust the included angle between the paste upper baffle 15 and the filling support roof beam 12 by telescoping.

[0060] The fully-mechanized mining support 3 includes a fully-mechanized mining support base 31 and a fully-mechanized mining support roof beam 32 located above the fully-mechanized mining support base 31. At least two fully-mechanized mining support columns 33 are arranged on the fully-mechanized mining support base 31, and the top end of each fully-mechanized mining support column 33 is connected to the lower surface of the fully-mechanized mining support roof beam 32. A fully-mechanized mining support front baffle 34 is also arranged on the side of the fully-mechanized mining support roof beam 32 away from the roof control support 2, and a fully-mechanized mining support front baffle telescopic support rod 35 for supporting the fully-mechanized mining support front baffle 34 is also arranged on the lower surface of the fully-mechanized mining support roof beam 32. The bottom end of the fully-mechanized mining support column 33 is movably connected to the fully-mechanized mining support base 31 by means of a pin shaft, so the included angle between the fully-mechanized mining support column 33 and the fully-mechanized mining support base 31 is variable. When the fully-mechanized mining support base 31 and the fully-mechanized mining support roof beam 32 move forward out of sync, the possible tipping of the fully-mechanized mining support column 33 or the danger caused by the increase in the frictional resistance received by the fully-mechanized mining support roof beam 32 can be reduced by the rotation of the pin shaft.

[0061] The roof control support 2 includes a roof control support base 21 and a composite support roof beam 22 located above the roof control support base 21. At least two roof control support columns 23 for supporting the composite support roof beam 22 are arranged on the roof control support base 21; a conveyor belt 24 is also arranged above the composite support roof beam 22. One end of the conveyor belt 24 is wound around the first conveyor mechanism 101 through a first auxiliary conveyor mechanism 321 arranged on the bottom surface of the fully-mechanized mining support roof beam 32, and the other end of the conveyor belt 24 is wound around the second conveyor mechanism 102 through a second auxiliary conveyor mechanism 121 arranged on the bottom surface of the filling support roof beam 12; the first conveyor mechanism 101 is arranged on the fully-mechanized mining support base 31, and the second conveyor mechanism 102 is arranged on the filling support base 11; the first auxiliary conveyor mechanism 321 and the second auxiliary conveyor mechanism 121 have the same structure and are arranged in mirror symmetry; both the first auxiliary conveyor mechanism 321 and the second auxiliary conveyor mechanism 121 are used for the auxiliary conveyance of the conveyor belt 24.

[0062] During the lifting and lowering process of the roof control support column 22, the conveyor belt 24 can move under the support of the composite support roof beam 22 and the combined conveyance of the first conveyor mechanism 101 and the second conveyor mechanism 102 to realize the support for the coal seam roof between the filling working face and the fully-mechanized mining working face. The conveyor belt 24 is lapped with the filling support 1 and the fully-mechanized mining support 3, which can prevent the roof rock from falling under the hydraulic support and causing harm to the operators. At the same time, it can avoid the accumulation of gangue inside the support caused by the separate forward movement of the components of the hydraulic support system, reducing the workload of gangue treatment inside the hydraulic support.

[0063] The filling support base 11 and the roof control support base 21 are connected by a filling support forward movement drive rod 4, and the roof control support base 21 and the fully-mechanized mining support base 31 are connected by a roof control support forward movement drive rod 5. The filling support forward movement drive rod 4 and the roof control support forward movement drive rod 5 can be hydraulic cylinders. The forward movement of the filling support base 11 is based on the roof control support base 21 and is achieved by the pulling of the filling support forward movement drive rod 4; the forward movement of the roof control support base 21 is based on the fully-mechanized mining support base 31 and is achieved by the pulling of the roof control support forward movement drive rod 5 and the front connecting rod provided at the front end of the fully-mechanized mining support base 31.

[0064] As a preferred solution of this embodiment, the composite support roof beam 22 includes a main roof beam 221 and a telescopic auxiliary beam 222. The telescopic auxiliary beam 222 is placed in a chute provided in the main roof beam 221 and can be telescoped along the length direction of the main roof beam 221 under the drive of the telescopic auxiliary beam hydraulic drive rod 223. The telescopic auxiliary beam 222 can be set according to actual needs. In this embodiment, there are two telescopic auxiliary beams 222, which are symmetrically arranged on both sides of the main roof beam 221 along the length direction of the hydraulic support. And in this embodiment, the widths of the filling support roof beam, the composite support roof beam 22, the fully-mechanized mining support roof beam, and the conveyor belt 24 are the same. Figure 1 The direction extending from left to right in the figure is the length direction of the main roof beam 221.

[0065] As a preferred solution of the present invention, the first conveyor mechanism 101 includes a reel support 1011. A reel central shaft 1012 is provided on the reel support 1011, and a reel body 1013 is sleeved outside all the reel central shafts 1012; a conveyor belt 24 is wound around the reel body 1013. An inner cavity is provided in the reel body 1013, and the reel body 1013 is surrounded by a barrel wall and two side walls.

[0066] As a preferred solution of the present invention, the conveyor belt 24 includes a plurality of connected chain plate bodies 241. A plurality of protruding portions 2411 are provided on the side surface of the chain plate body 241, and grooves 2412 are provided between adjacent protruding portions 2411. Adjacent chain plate bodies 241 form a plug-in fit through the protruding portions 2411 and the grooves 2412. Pin installation holes can also be provided in the protruding portions according to needs, and the splicing and bending of adjacent chain plate bodies 241 are realized through pins inserted into the pin installation holes.

[0067] As a preferred solution of the present invention, a drive motor for driving the rotation of the reel body is provided in the reel body 1013, and the drive motor drives the reel body 1013 to rotate around the reel central shaft 1012.

[0068] As a preferred embodiment of the present invention, a reverse stop assembly 1014 for preventing the reverse rotation of the drum central shaft 1012 is further provided inside the drum body 1013. In this embodiment, the number of the reverse stop assemblies 1014 is two, which are arranged at both ends of the drum central shaft 1012. The reverse stop assembly 1014 includes a reverse stop gear 10141, a reverse stop tongue 10142, and an adjusting handle 10143. The reverse stop gear 10141 is coaxially sleeved on the drum central shaft 1012 and is connected to the side wall of the drum body 1013. One end of the adjusting handle 10143 is connected to the drum bracket 1011, and the other end is connected to the reverse stop tongue 10142. The adjusting handle 10143 is used for adjusting the position of the reverse stop tongue 10142. The reverse stop tongue 10142 is movably arranged on one side of the reverse stop gear 10141. The protruding end of the reverse stop tongue 10142 can be matched with the concave teeth of the reverse stop gear 10141 to block the reverse stop gear 10141. The adjusting handle 10143 can adjust the structure of the reverse stop tongue 10142 by rotation. If it is necessary to make the drum 14 rotate in the reverse direction, it is necessary to operate the adjusting handle 10413 to push aside the reverse stop tongue 10142.

[0069] As a preferred embodiment of this embodiment, a movable roof plate 17 of the filling support is arranged between the top beam 12 of the filling support and the paste upper baffle 15. A telescopic rod 18 of the movable roof plate of the filling support is fixedly installed on the lower surface of the top beam 12 of the filling support. The movable roof plate 17 of the filling support can move along the length direction of the top beam 12 of the filling support under the drive of the telescopic rod 18 of the movable roof plate of the filling support. By the expansion and contraction of the movable roof plate 17 of the filling support, the adjustment of the roof protection area behind the filling support 1 can be realized, further protecting the operation safety under the filling support 1. The paste upper baffle 15 and the movable roof plate 17 of the filling support are connected by means of bearings. By the drive of the telescopic support rod 16 of the paste upper baffle, the support of the paste upper baffle 15 for the goaf behind can be realized, expanding the roof protection area of the filling support 1.

[0070] As a preferred embodiment of this embodiment, a first overlapping plate 6 is also rotatably connected to one end of the top beam 12 of the filling support close to the composite support top beam 22. The first overlapping plate 6 can overlap with the conveyor belt 24. When the composite support top beam 22 of the roof control support moves down to the position below the first auxiliary conveyor mechanism 321 and the second auxiliary conveyor mechanism 121, the first overlapping plate 6 rotates downward around the rotation axis and overlaps with the conveyor belt 24, and can scrape and clean the falling stones on the upper surface of the conveyor belt 24 to prevent the falling stones from falling into the space below the hydraulic support along with the conveyor belt 24.

[0071] As a preferred embodiment of the present invention, a paste tail baffle 19 is arranged at the bottom end of the paste upper baffle 15, and the paste upper baffle 15 and the paste tail baffle 19 are also connected by a tail plate telescopic column 8. Through the cooperation of the telescopic support rod 16 of the paste upper baffle and the tail plate telescopic column 8, the positions of the paste upper baffle 15 and the paste tail baffle 19 can be adjusted.

[0072] The paste lower baffle 14 can move vertically under the drive of the vertical adjustment mechanism 9 arranged on the filling support base 11, so as to adjust the vertical distance between the top end of the paste lower baffle 14 and the upper surface of the filling support base 11, that is, to adjust the height of the paste lower baffle 14. Through the combined use of the paste lower baffle 14, the paste upper baffle 15 and the paste tail baffle 19, the complete blocking of the filling paste behind the filling support 1 can be realized.

[0073] As a preferred embodiment of the present invention, as Figure 2 shown, the vertical adjustment mechanism 9 in this embodiment is a hydraulic drive rod. The paste lower baffle 14 includes a baffle base 141 provided with an inner cavity and a lifting baffle 142. The lower end of the lifting baffle 142 is inserted into the inner cavity of the baffle base 141 through the top opening of the baffle base 141. A connecting piece 1421 is arranged on the side wall of the upper end of the lifting baffle 142, and the connecting piece 1421 is connected to the top end of the hydraulic drive rod.

[0074] As a preferred embodiment of the present invention, a fully-mechanized mining support movable roof 36 is arranged between the fully-mechanized mining support roof beam 32 and the fully-mechanized mining support front baffle 34. A fully-mechanized mining support movable roof telescopic rod 37 is fixedly installed on the lower surface of the fully-mechanized mining support roof beam 32. The fully-mechanized mining support movable roof 36 can move along the length direction of the fully-mechanized mining support roof beam 32 under the drive of the fully-mechanized mining support movable roof telescopic rod 37, so as to realize the expansion of the fully-mechanized mining support area and the support for the working face in front of the fully-mechanized mining support.

[0075] As a preferred embodiment of the present invention, a fully-mechanized mining support front tongue 39 is arranged at the bottom end of the fully-mechanized mining support front baffle 34, and the fully-mechanized mining support front baffle 34 and the fully-mechanized mining support front tongue 39 are connected by a fully-mechanized mining support tail plate telescopic column 38.

[0076] As a preferred embodiment of the present invention, a second lapping plate 7 is also rotatably connected to one end of the fully-mechanized mining support roof beam 32 close to the composite support roof beam 22, and the second lapping plate 7 can be lapped with the conveyor belt 24.

[0077] In this embodiment, the first lapping plate 6 and the second lapping plate 7 have the same structure and are arranged in mirror symmetry.

[0078] In summary, the support of the fully-mechanized mining support 3 for the fully-mechanized mining face is realized through the coordinated cooperation of the fully-mechanized mining support roof beam 32, the fully-mechanized mining support movable roof 36, the fully-mechanized mining support front baffle 34 and the fully-mechanized mining support front tongue 39. The fully-mechanized mining support column 33 drives the fully-mechanized mining support roof beam 32 to abut against the coal seam roof through height adjustment, so as to realize the high-strength support of the fully-mechanized mining support 3 for the coal seam roof.

[0079] When the system of the present invention is in use, it mainly includes the following steps:

[0080] (1) As the fully-mechanized mining face moves forward, the telescopic rod 18 of the movable roof of the filling support drives the extension of the movable roof 17 of the filling support. Then, the telescopic support rod 16 of the paste upper baffle drives the lifting of the paste upper baffle 15 to form a protection for the upper paste in the filling space behind the filling support. The vertical adjustment mechanism 9 is used to adjust the paste lower baffle 14 to the highest position to form a protection for the lower paste in the filling space behind the filling support, and the preparatory work before filling begins. When the height of the filling paste reaches 2 / 3 of the height of the paste lower baffle 10, the paste upper baffle 15 and the paste tail baffle 19 are adjusted to be lowered so that the paste tail baffle 19 is hermetically joined with the paste lower baffle 10, and then the space of the remaining height is continuously filled.

[0081] (2) Move the roof control support 2 to a suitable position. By adjusting the height of the roof control support column 23, the top surface of the conveyor belt 24 is made to contact the coal seam roof. This process is the rising process of the roof control support 2. During this process, the top of the conveyor belt 24 contacts the coal seam roof and generates a mutual acting force. As the roof control support column 23 continuously extends, the pressure borne by the coal seam roof continuously increases. The composite support roof beam 22 provides corresponding support to the conveyor belt 24, keeping the conveyor belt 24 in a tensioned state and forming an effective support for the coal seam roof. After reaching the preset support effect, the self-locking device on the roof control support column 23 locks the roof control support column 23 to achieve a more stable and reliable support for the coal seam roof.

[0082] (3) During the filling operation process, the fully-mechanized mining face continues with the fully-mechanized mining operation. When the fully-mechanized support 3 does not need to provide support for the roof and coal wall of the fully-mechanized mining face, the height of the fully-mechanized support column 33 is reduced so that the fully-mechanized support roof beam 32 is separated from the roof of the fully-mechanized mining face. Then, with the thrust of the roof control support forward driving rod 5 and the tension of the front connecting rod arranged at the front end of the fully-mechanized support base 31, the fully-mechanized support base 31 is promoted to move forward, driving the fully-mechanized support roof protection plate 32 to move forward. During the forward movement, the horizontal state of the fully-mechanized support roof beam 32 is maintained. During this process, the composite support roof beam 2 can also be used to support the coal seam roof between the filling face and the fully-mechanized mining face.

[0083] (4) When the forward movement distances of the roof control support 2 and the fully-mechanized support 3 reach the designed positions, the filling slurry behind the filling support 1 has also reached the initial setting. At this time, the height of the filling support column 13 can be reduced, and then the filling support 1 is moved forward by means of the filling support forward driving rod 4, making the filling support 1 move to the predetermined position.

[0084] Such as Figure 6As shown, if the roof control component with a conveyor belt set in this disclosure is not provided, the hydraulic support system cannot achieve flexible support for the coal seam roof. Then, the caving roof will cause harm to the operators under the hydraulic support. At the same time, the accumulation of gangue inside the hydraulic support will be caused by the separate forward movement of the components of the hydraulic support system, bringing difficulties to the on-site construction.

[0085] In the above description, unless otherwise clearly specified and limited, terms such as "set" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or integrated; it can be a direct connection or an indirect connection, etc. For those of ordinary skill in the art, the specific meanings of the above terms in this technical solution can be understood according to specific circumstances.

[0086] In the various specific technical features described in the above specific embodiments, they can be combined in any suitable way without contradiction, as long as they do not violate the idea of the present invention, and they should also be regarded as the content disclosed by the present invention.

Claims

1. A hydraulic support system for filling mining, comprising a filling support (1) and a fully-mechanized mining support (3), characterized in that, It further includes a roof control support (2), and the packing support (1), the roof control support (2) and the fully-mechanized mining support (3) are connected and arranged in sequence; The packing support (1) is used for the support of the working face and the shielding of the packing paste; the roof control support (2) is used for supporting the coal seam roof between the packing working face and the fully-mechanized mining working face, and the fully-mechanized mining support (3) is used for supporting the fully-mechanized mining working face; The packing support (1) includes a packing support base (11) and a packing support roof beam (12) located above the packing support base (11); at least two packing support columns (13) are arranged on the packing support base (11), and the top end of each packing support column (13) is connected to the lower surface of the packing support roof beam (12); a paste lower baffle (14) is vertically arranged on the upper surface of one end of the packing support base (11) away from the roof control support (2); a paste upper baffle (15) is further arranged on one side of the packing support roof beam (12) away from the roof control support (2), and a paste upper baffle telescopic support rod (16) for supporting the paste upper baffle (15) is arranged on the bottom surface of the packing support roof beam (12); The fully-mechanized mining support (3) includes a fully-mechanized mining support base (31) and a fully-mechanized mining support roof beam (32) located above the fully-mechanized mining support base (31), at least two fully-mechanized mining support columns (33) are arranged on the fully-mechanized mining support base (31), and the top end of each fully-mechanized mining support column (33) is connected to the lower surface of the fully-mechanized mining support roof beam (32); a fully-mechanized mining support front baffle (34) is further arranged on one side of the fully-mechanized mining support roof beam (32) away from the roof control support (2), and a fully-mechanized mining support front baffle telescopic support rod (35) for supporting the fully-mechanized mining support front baffle (34) is arranged on the lower surface of the fully-mechanized mining support roof beam (32); The roof control support (2) includes a roof control support base (21) and a composite support roof beam (22) located above the roof control support base (21), and at least two roof control support columns (23) for supporting the composite support roof beam (22) are arranged on the roof control support base (21); a conveyor belt (24) is further arranged above the composite support roof beam (22), one end of the conveyor belt (24) is wound around a first conveyor mechanism (101) through a first auxiliary conveyor mechanism (321) arranged on the bottom surface of the fully-mechanized mining support roof beam (32), and the other end of the conveyor belt (24) is wound around a second conveyor mechanism (102) through a second auxiliary conveyor mechanism (121) arranged on the bottom surface of the packing support roof beam (12); the first conveyor mechanism (101) is arranged on the fully-mechanized mining support base (31), and the second conveyor mechanism (102) is arranged on the packing support base (11); the first auxiliary conveyor mechanism (321) and the second auxiliary conveyor mechanism (121) have the same structure and are arranged in mirror symmetry; The packing support base (11) is connected to the roof control support base (21) through a packing support forward movement driving rod (4), and the roof control support base (21) is connected to the fully-mechanized mining support base (31) through a roof control support forward movement driving rod (5).

2. The hydraulic powered support system for backfill mining according to claim 1, characterized in that, The composite support roof beam (22) includes a main roof beam (221) and a telescopic auxiliary beam (222). The telescopic auxiliary beam (222) is placed in a chute provided in the main roof beam (221) and can be telescoped along the length direction of the main roof beam (221) driven by a telescopic auxiliary beam hydraulic drive rod (223).

3. The hydraulic support system for backfill mining according to claim 1, wherein The first conveyor mechanism (101) includes a reel support (1011). A reel central shaft (1012) is provided on the reel support (1011), and a reel body (1013) is sleeved outside all the reel central shafts (1012); the conveyor belt (24) is wound around the reel body (1013).

4. The hydraulic support system for backfill mining according to claim 3, wherein The conveyor belt (24) includes a plurality of connected chain plate bodies (241). A plurality of protrusions (2411) are provided on the side surface of the chain plate body (241), and a groove (2412) is provided between adjacent protrusions (2411). Adjacent chain plate bodies (241) form a plug-in fit through the protrusions (2411) and the grooves (2412).

5. The hydraulic powered support system for filling mining according to claim 3, characterized in that, A drive motor for driving the rotation of the reel body (1013) is provided inside the reel body (1013).

6. The hydraulic powered support system for backfill mining according to claim 3, characterized in that An anti-reverse component (1014) for preventing the reverse rotation of the reel central shaft (1012) is further provided inside the reel body (1013). The anti-reverse component (1014) includes an anti-reverse gear (10141), an anti-reverse lock tongue (10142), and an adjusting handle (10143). The anti-reverse gear (10141) is coaxially sleeved on the reel central shaft (1012). One end of the adjusting handle (10143) is connected to the reel support (1011), and the other end is connected to the anti-reverse lock tongue (10142). The adjusting handle (10143) is used for adjusting the position of the anti-reverse lock tongue (10142).

7. The hydraulic support system for filling mining according to claim 1, wherein An adjustable filling support roof plate (17) is provided between the filling support roof beam (12) and the paste upper baffle (15). A filling support roof plate telescopic rod (18) is fixedly installed on the lower surface of the filling support roof beam (12). The adjustable filling support roof plate (17) can move along the length direction of the filling support roof beam (12) driven by the filling support roof plate telescopic rod (18).

8. The hydraulic powered support system for backfill mining according to claim 1, wherein One end of the filling support roof beam (12) close to the composite support roof beam (22) is also rotatably connected with a first overlapping plate (6), and the first overlapping plate (6) can overlap with the conveyor belt (24).

9. The hydraulic powered support system for backfilling mining according to claim 1, characterized in that, A paste tail baffle (19) is provided at the bottom end of the paste upper baffle (15), and the paste upper baffle (15) and the paste tail baffle (19) are connected by a tail plate telescopic column (8).

10. The hydraulic powered support system for backfill mining according to claim 1, characterized in that, The paste lower baffle (14) can move vertically driven by a vertical adjusting mechanism (9) provided on the filling support base (11), so as to adjust the vertical distance between the top end of the paste lower baffle (14) and the upper surface of the filling support base (11); The paste lower baffle (14) includes a baffle base (141) provided with an inner cavity and a lifting baffle (142). The lower end of the lifting baffle (142) is inserted into the inner cavity of the baffle base (141) through the top opening of the baffle base (141). A connecting member (1421) is provided on the side wall of the upper end of the lifting baffle (142), and the connecting member (1421) is connected to the top end of the vertical adjusting mechanism (9).

11. The hydraulic powered support system for filling mining according to claim 2, wherein A fully-mechanized mining support movable roof (36) is arranged between the fully-mechanized mining support top beam (32) and the fully-mechanized mining support front baffle (34). A fully-mechanized mining support movable roof telescopic rod (37) is fixedly installed on the lower surface of the fully-mechanized mining support top beam (32). The fully-mechanized mining support movable roof (36) can move along the length direction of the fully-mechanized mining support top beam (32) under the drive of the fully-mechanized mining support movable roof telescopic rod (37).

12. The hydraulic powered support system for backfill mining according to claim 2, characterized in that, A fully-mechanized mining support front tongue (39) is arranged at the bottom end of the fully-mechanized mining support front baffle (34), and the fully-mechanized mining support front baffle (34) is connected to the fully-mechanized mining support front tongue (39) through a fully-mechanized mining support tail plate telescopic column (38).

13. The hydraulic powered support system for backfilling mining according to claim 2, wherein One end of the fully-mechanized mining support top beam (32) close to the composite support top beam (22) is also rotatably connected with a second lapping plate (7), and the second lapping plate (7) can lap with the conveyor belt (24).

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