A high-water material goaf rapid filling system and a method of using the same

Abstract

The application discloses a high-water material goaf rapid filling system and a use method thereof. After a filling bag is folded in a set folding mode, the filling bag is placed on a transportation flat plate. Then, a lifting motor is controlled to make a lifting hook lift a second filling bag. When the lifting hook reaches an upper gear, the lifting hook is turned over. At this time, a cross rod is transferred from the lifting hook to a vertical bag hook, and the filling bag unfolded upward and downward is unfolded forward and backward along the extension direction of a rear top beam through the movement of the sliding cross rod. While the filling bag is unfolded, high-water material is prepared. After the preparation, the second filling bag and the first filling bag are filled in turn. The filling and expansion of the first filling bag and the second filling bag realize the support of the filling body to the roof of the current position. During the whole filling body support process, the staff is always inside the protection plate. The support of the filling body is completed through the remote control of the mechanical equipment. The working face recovery speed can be improved, and the safety of the workers working in the goaf can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of high water material goaf rapid filling system and its using method, belong to coal mine goaf filling technical field. BACKGROUND

[0002] Due to long-term exploitation of coal resources, some simple deposit conditions of mining area face exhaustion, more and more mining areas face the problem of mining under buildings, under rivers, under railways, at the same time, there are problems of mining under special geological structure in mine, for the above problems, filling mining is an effective and feasible safety measure. The existing filling material is mainly paste and gangue cement, the above filling material can meet the filling requirement through practice, but its supporting facilities are large, mostly located in ground industrial square, causing long transportation distance and large transportation resistance of paste material in transportation process, the strength of the above two materials increases slowly, which affects the recovery speed of working face. High water filling material is transported in liquid form and has small supporting facilities, and can be arranged in surface shaft near or chamber near working face according to specific use condition, and has the characteristics of rapid setting, early strength and high. But the existing high water material is mainly artificial in goaf filling construction, and this artificial construction method needs a lot of time for post support reinforcement and filling bag fixing work, thereby affecting the recovery progress of working face; at the same time, workers have great safety hazards in goaf operation.

[0003] Therefore, how to provide a system and method, only need artificial remote control, through mechanized equipment in the rear of frame with coal mining machine to carry out rapid filling of high water material filling body, so as to not only improve the recovery speed of working face, but also ensure the safety of workers in goaf operation, is one of the research directions in this industry. SUMMARY

[0004] In view of the problems existing in the prior art, the present application provides a kind of high water material goaf rapid filling system and its using method, only need artificial remote control, through mechanized equipment in the rear of frame with coal mining machine to carry out rapid filling of high water material filling body, so as to not only improve the recovery speed of working face, but also ensure the safety of workers in goaf operation.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is: a kind of high water material goaf rapid filling system, including base, multiple hydraulic cylinders, guard plate, front roof beam and rear roof beam, multiple hydraulic cylinders and guard plate are fixed on the base, front roof beam is above the base, and is connected with the base by hydraulic cylinder and guard plate, rear roof beam is placed in the interior of front roof beam, and can slide out from the interior of front roof beam, further including transport flat plate, lifting device and bagging device;

[0006] The protection plate is provided with a through slot, the base is provided with a sliding rail along the sliding direction of the rear top beam, one end of the sliding rail is below the junction of the front top beam and the rear top beam, and the other end penetrates the through slot of the protection plate, the width of the through slot is slightly larger than the width of the transport flat plate, so that the transport flat plate can pass through the through slot;

[0007] The transport flat plate is provided below with a pulley, the transport flat plate is installed on the sliding rail through the pulley, so that the transport flat plate can move along the sliding rail; the filling bag is placed on the transport flat plate, two lateral rods are respectively arranged on the two sides of the filling bag, and the two lateral rods are connected with the filling bag through fixing belts; at least one limiting hook is symmetrically arranged on the position close to the two sides of the transport flat plate, and the lateral rods are hung on the limiting hooks to limit the filling bag.

[0008] The lifting device comprises at least two lifting columns, when the transport flat plate is at one end of the sliding rail, the lifting columns are symmetrically arranged on the two sides of the transport flat plate, and the positions and the number of the lifting columns correspond to the positions and the number of the limiting hooks; a gear is arranged at the upper end and the lower end of the side of each lifting column, one of the gears is coaxially connected with the lifting motor through a rotating shaft, the two gears are connected through a chain, at least one lifting hook is arranged on the chain, the chain can drive the lifting hook to move along the chain when the chain rotates, and when the lifting hook reaches the position of the lateral rod, the lateral rod can be driven to leave the limiting hook, so that the filling bag starts to unfold upward and downward.

[0009] The bag erecting device comprises a telescopic oil cylinder and a sliding table, the sliding table comprises two support plates, a sliding frame, a driving motor, a fixed cross rod and a sliding cross rod, the two support plates are parallel to the front top beam, and one end of each of the two support plates is fixed on the sliding frame; the sliding frame is installed at the lower part of the front top beam, and the sliding frame can slide relative to the front top beam along the extension direction of the rear top beam; the telescopic oil cylinder is fixed at the lower part of the front top beam, and the extension end of the telescopic oil cylinder is connected with the sliding frame; the extension of the telescopic oil cylinder can drive the sliding frame to slide, so that the other end of each of the two support plates extends out of the front top beam; a sliding groove is arranged at the opposite side of each of the two support plates; the sliding cross rod is arranged between the two support plates, and the two ends of the sliding cross rod are arranged in the sliding grooves of the two support plates, respectively; the driving motor is fixed on the sliding frame, and the driving motor is connected with the sliding cross rod through a transmission chain; the driving motor can drive the sliding cross rod to move in the sliding grooves relative to the two support plates; the fixed cross rod is fixed at the lower part of the two support plates; a bag erecting hook is arranged at the lower part of each of the fixed cross rod and the sliding cross rod; when the two bag erecting hooks are at the corresponding positions of the lifting columns, the lifting hook drives the cross rod to reach the position of the bag erecting hook; the two lateral rods can be hung on the two bag erecting hooks, respectively; then, when one of the bag erecting hooks moves along with the sliding cross rod, the unfolded filling bag can be unfolded forward and backward along the extension direction of the rear top beam; then, the telescopic oil cylinder drives the whole filling bag to move, and the bag erecting work is completed.

[0010] Further, the protective small plate is arranged at the through slot and is hinged between the protective plate and the protective small plate, so that the protective small plate can be flipped relative to the protective plate and can close or open the through slot. The structure can close the through slot during filling, so that the personnel are isolated from the filling body during the filling support process, and accidents during filling are prevented from affecting the safety of the personnel.

[0011] Further, the number of the limiting hooks and the lifting columns is four, the lifting column is a telescopic rod with a limiting bolt, the height of the telescopic rod can be adjusted and the telescopic rod can be fixed through the limiting bolt. In this way, the stability of the filling bag during the support process can be further ensured.

[0012] Further, the bag hanging hook is an electrically closed hook, the hook opening can be opened or closed through electric control. The structure can ensure that the cross bar does not fall off the bag hanging hook when the filling bag is moved after being unfolded, and the smooth implementation of the filling support is ensured.

[0013] Further, the filling bag is composed of a first filling bag and a second filling bag, the first filling bag is arranged at the upper portion of the second filling bag, and two cross bars are arranged at the two sides of the second filling bag respectively; the height of the first filling bag after being completely filled is greater than the height of the back top beam, and the first filling bag and the second filling bag are respectively provided with filling sleeves for filling the first filling bag and the second filling bag with high-water material. The structure can fill the second filling bag first and then fill the first filling bag, and the filling body support effect is good through the filling in batches.

[0014] The use method of the high-water material goaf rapid filling system, and the specific steps are as follows:

[0015] A, the support moving of the rapid filling system: after the coal mining machine cuts coal, the coal mining machine moves forward, and a to-be-filled area is formed behind the coal mining machine. At this time, the rapid filling system moves forward with the coal mining machine. During the moving process, the gear on the front top beam is controlled to rotate by the motor, so that the back top beam extends backward to control the roof of the to-be-filled area. The extension speed of the back top beam is the same as the forward moving speed of the support, and the extension length is the same as the cutting interval of the coal mining machine. Thus, the support moving process is completed.

[0016] B, the placing of the filling bag: after the support moving is completed, the personnel first flip the protective small plate and fix the protective small plate on the protective plate, so that the through slot is in an open state. Then, the transport flat plate is arranged in the protective plate, and then the first filling bag and the second filling bag are placed on the transport flat plate. The cross bars at the two sides of the second filling bag are hung on the limiting hooks respectively. Then, the filling sleeves of the first filling bag and the second filling bag are pulled respectively, and the transport flat plate is pushed to pass through the through slot and is arranged at one end of the slide rail. After the completion, the protective small plate is flipped and reset to close the through slot. At this time, the filling sleeves of the first filling bag and the second filling bag are still arranged inside the protective plate. Thus, the placing of the filling bag is completed.

[0017] C, set up the filling bag: the staff in the protective plate inside first control telescopic oil cylinder driven slide frame movement, make the fixed horizontal rod and the sliding horizontal rod each bag hook in the corresponding position stop moving of lifting column, at the same time control the bag hook hook mouth in the open state, then control the lifting motor forward rotation, and then through the gear rotation driven each chain lifting hook begins to move upward, when the lifting hook reaches the horizontal rod position can be hung up and drive it to leave the limit hook, at this time the second filling bag begins to unfold, until the lifting hook reaches the upper gear when the turnover occurs, at this time the horizontal rod from the lifting hook to the bag hook on the transfer, then through the electric control bag hook hook mouth closure, at the same time control the lifting motor reverse, and then make the lifting hook begins to drop to make it away from the horizontal rod, until the lifting hook is in the lower gear position when the lifting motor stops working; then control the drive motor work driven sliding horizontal rod to the support plate the other end sliding, increase the distance between the fixed horizontal rod lower bag hook and the sliding horizontal rod lower bag hook, so as to drive the filling bag unfolded after the front and back along the rear top beam extension direction, then the telescopic oil cylinder driven filling bag whole movement to the rear top beam below, complete the filling bag set up work;

[0018] D, high water material preparation: in the process of step C, at the same time, high water material preparation, layout two groups of stirring device, each group consists of two stirring barrels, A, B group of materials and water are respectively added into one of the two stirring barrels for stirring, stirring 2 minutes after the completion of stirring, when the need for high water material filling, through two delivery pump respectively the A, B slurry liquid in the group is transported to the working surface, A, B slurry liquid pipeline before entering the working surface, using three way connection, so that the slurry mixing and by a high pressure rubber pipe to the working surface, the pipe in close to the working surface one end with valve; when the group of stirring device begins to slurry delivery, the other group of the above process begins to prepare A, B slurry liquid in the group; until the slurry delivery in the group of stirring device is completed, at this time the other group of A, B slurry preparation is completed; delivery pump and the group is disconnected and connected with another group to continue the slurry delivery, at the same time, the group of A, B slurry preparation, so as to ensure the continuous preparation of high water material and slurry delivery process;

[0019] E, high water material frame back filling: after the above work is completed, the worker puts the high-pressure hose on the working face into the filling sleeve of the second filling bag inside the protective plate, tightens the hose and the sleeve with a strap, opens the valve of the high-pressure hose, at this time, the delivery pump is started to inject grout into the second filling bag, the second filling bag starts to expand, its top passes between the two support plates, when the grout surface in the second filling bag reaches the lower end surface of the rear roof beam, the valve is closed and the high-pressure hose is taken out, then the filling sleeve of the second filling bag is completely tied with a strap; then the hook opening of the vertical bag hook is controlled to be in an open state, the crossbars on both sides of the second filling bag are dropped from the vertical bag hook, then the telescopic oil cylinder is controlled to retract to reset the sliding crossbar below the front roof beam; finally, the rear roof beam is retracted into the front roof beam, the high-pressure hose is put into the filling sleeve of the first filling bag, the hose and the sleeve are tightened with a strap, and the valve of the high-pressure hose is opened, at this time, the delivery pump is started to inject grout into the first filling bag, when the first filling bag expands to the top, the valve is closed and the high-pressure hose is taken out, then the filling sleeve of the first filling bag is completely tied with a strap, the filling body support process at this position is completed;

[0020] F, filling support of the whole working face goaf: after the filling body support work after the current advance is completed, the above steps A-E are repeated to continue the filling body support work after the next advance.

[0021] Compared with the prior art, after the coal cutting of the coal mining machine, the area to be filled (i.e. the goaf) is formed, the rear roof beam is first extended to support the advance, then the filling bag is folded in the set folding manner and placed on the transport flat plate, then the worker pushes the transport flat plate to the rear end of the base, then the worker controls the lifting motor inside the protective plate to lift the second filling bag with the lifting hook, the second filling bag starts to unfold upward and downward, until the lifting hook reaches the upper gear and is flipped, at this time, the crossbar is transferred from the lifting hook to the vertical bag hook, and the unfolded filling bag is unfolded forward and backward along the extension direction of the rear roof beam through the sliding crossbar movement, thereby completing the vertical bag process. While the filling bag is unfolded and moved, the high-water material is prepared, the unfolded second filling bag is filled with the high-water material first, and then the crossbar is detached from the vertical bag hook and retracted, and finally the filling work of the first filling bag is performed, the support of the filling body to the roof at the current position is achieved through the filling and expansion of the first filling bag and the second filling bag. During the whole filling body support process, the worker is always inside the protective plate, and the support of the filling body is completed through the remote control of the mechanical equipment, which not only improves the mining speed of the working face, but also ensures the safety of the worker working in the goaf. In addition, through the filling of the first filling bag and the second filling bag in sequence, the second filling bag is first solidified and formed, and then the final roof filling of the first filling bag is performed, so that when any filling bag is broken, only the damaged filling bag needs to be replaced, the whole replacement is not needed, the replacement can be completed faster and costs are saved. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure from another direction;

[0024] Figure 3 From Figure 2 Structural schematic diagram of the middle and rear top beam direction;

[0025] Figure 4 This is a layout diagram of the transport flatbed and filling bag in this invention;

[0026] Figure 5 This is a schematic diagram of the structure of the filling bag after filling in this invention;

[0027] Figure 6 This is a schematic diagram of the filling bag in a folded state along the filling direction in this invention;

[0028] Figure 7 This is a schematic diagram of the filling bag in a folded state along the filling height in this invention;

[0029] Figure 8 This is a schematic diagram of the filling bag being lifted and unfolded by the lifting hook in this invention;

[0030] Figure 9 This is a schematic diagram showing the connection between the lifting hook and the upright hook of the filling bag in this invention;

[0031] Figure 10 This is a schematic diagram showing the filling bag as a whole positioned below the sliding platform in this invention.

[0032] In the diagram: 1. Base, 2. Hydraulic cylinder, 3. Protective plate, 4. Front top beam, 5. Rear top beam, 6. Transport flatbed, 7. Protective plate, 8. Slide rail, 9. First filling bag, 10. Second filling bag, 11. Crossbar, 12. Limit hook, 13. Lifting column, 14. Chain, 15. Lifting hook, 16. Telescopic cylinder, 17. Support plate, 18. Sliding crossbar, 19. Slide groove, 20. Bag hook, 21. Filling sleeve. Detailed Implementation

[0033] The present invention will be further described below.

[0034] like Figure 1 and 2As shown, a rapid filling system for high-water-content material goaf includes a base 1, multiple hydraulic cylinders 2, a protective plate 3, a front top beam 4, and a rear top beam 5. The hydraulic cylinders 2 and the protective plate 3 are all fixed to the base 1. The front top beam 4 is positioned above the base 1 and is connected to the base 1 via the hydraulic cylinders 2 and the protective plate 3. Figure 3 As shown, the rear top beam 5 is placed inside the front top beam 4 and can slide out from inside the front top beam 4, and also includes a transport flat plate 6, a lifting device and a bag-standing device.

[0035] The protective plate 3 is provided with a through groove, and the base 1 is provided with a slide rail 8 along the sliding direction of the rear top beam 5. One end of the slide rail 8 is located below the junction of the front top beam 4 and the rear top beam 5, and the other end passes through the through groove of the protective plate 3. The width of the through groove is slightly larger than the width of the transport plate 6, so that the transport plate 6 can pass through the through groove.

[0036] like Figure 3 As shown, the transport plate 6 is equipped with pulleys underneath, and the transport plate 6 is mounted on the slide rail 8 via the pulleys, allowing it to move along the slide rail 8. A filling bag is placed on the transport plate 6, and a crossbar 11 is provided on each side of the filling bag. Both crossbars 11 are connected to the filling bag via fixing straps. At least one limiting hook 12 is symmetrically arranged near both sides of the transport plate 6, and the crossbars 11 are hung on the limiting hooks 12 to limit the filling bag's position. It also includes a protective plate 7, which is located at the through-slot and hinged to the protective plate 3, allowing it to rotate relative to the protective plate 3 and close or open the through-slot. This structure can close the through-slot during filling, isolating personnel from the filling support process and preventing accidents during filling from affecting personnel safety.

[0037] The lifting device includes at least two lifting columns 13. When the transport plate 6 is at one end of the slide rail 8, the lifting columns 13 are symmetrically arranged on both sides of the transport plate 6, and the position and number of the lifting columns 13 correspond to the position and number of the limiting hooks 12. Each lifting column 13 has a gear mounted on its upper and lower ends. One gear is coaxially connected to the lifting motor via a rotating shaft, and the two gears are connected via a chain 14. The chain 14 has at least one lifting hook 15. When the chain 14 rotates, it can drive the lifting hook 15 to move with the chain 14. Figure 8 As shown, when the lifting hook 15 reaches the position of the crossbar 11, it can drive the crossbar 11 away from the limit hook 12, so that the filling bag can start to unfold up and down.

[0038] The erecting device comprises a telescopic oil cylinder 16 and a sliding table, the sliding table comprises two support plates 17, a sliding frame, a driving motor, a fixed crossbar and a sliding crossbar 18, the two support plates 17 are parallel to the front top beam 4 and one end of each of the two support plates 17 is fixed on the sliding frame, the sliding frame is installed on the lower part of the front top beam 4 and can slide along the front top beam 4 in the direction of extending out of the rear top beam 5; the telescopic oil cylinder 16 is fixed on the lower part of the front top beam 4 and the extending end of the telescopic oil cylinder 16 is connected with the sliding frame, the telescopic oil cylinder 16 can drive the sliding frame to slide so that the other end of the two support plates 17 extends out of the front top beam 4; the opposite side of each of the two support plates 17 is provided with a sliding groove 19, the sliding crossbar 18 is installed between the two support plates 17 and the two ends of the sliding crossbar 18 are respectively located in the sliding grooves 19 of the two support plates 17 (the distance between the two support plates 17 is greater than the width of the filled body formed after the filling bag is completely filled), the driving motor is fixed on the sliding frame and is connected with the sliding crossbar 18 through a transmission chain, the driving motor can drive the sliding crossbar 18 to move in the sliding grooves 19 relative to the two support plates 17, and the fixed crossbar is fixed on the lower part of the two support plates 17; each of the fixed crossbar and the sliding crossbar 18 is provided with a bag erecting hook 20 on the lower part, the bag erecting hook 20 is an electrically closed hook and can be opened or closed through electric control. By adopting the structure, when the filled bag is moved after being unfolded, it can be ensured that the crossbar 11 will not be pulled out of the bag erecting hook 20, thereby ensuring the smooth implementation of the filling support. When the two bag erecting hooks 20 are located at the corresponding positions of the lifting column 13 and the crossbar 11 reaches the position of the bag erecting hook 20 driven by the lifting hook 15, the two crossbars 11 can be hung on the two bag erecting hooks 20 respectively, then when one of the bag erecting hooks 20 moves with the sliding crossbar 18, it can drive the unfolded filled bag to unfold forward and backward along the direction of extending out of the rear top beam 5, then the telescopic oil cylinder 16 drives the whole filled bag to move, and the bag erecting work is completed.

[0039] As an improvement of the present application, the number of the limiting hooks 12 and the lifting columns 13 is four, the lifting column 13 is a telescopic rod provided with a limiting bolt, the height of the lifting column 13 can be adjusted through the telescopic rod and is fixed through the limiting bolt. By setting in this way, the stability of the filled bag during the setting process can be further ensured.

[0040] As another improvement of the present application, the filled bag is composed of a first filling bag 9 and a second filling bag 10, the first filling bag 9 is located on the upper part of the second filling bag 10, and the two crossbars 11 are respectively arranged on the two sides of the second filling bag 10; the height of the first filling bag 9 after being completely filled is greater than the height of the rear top beam 5, and the first filling bag 9 and the second filling bag 10 are respectively provided with a filling sleeve 21 for filling the high-water material into the first filling bag 9 and the second filling bag 10 respectively. By adopting the structure, the second filling bag 10 is filled first and then the first filling bag 9 is filled, and a better filling body support effect is achieved through the filling in batches.

[0041] The use method of the high-water material goaf rapid filling system has the following specific steps:

[0042] A, the support moving of the rapid filling system: after the coal cutter cuts coal, the support moves forward, and a filling area to be filled is formed behind the support. At this time, the rapid filling system moves forward with the coal cutter. During the moving, the motor controls the rotation of the gear on the front roof beam 4, so that the rear roof beam 5 extends backward to control the roof of the filling area to be filled. The extension speed of the rear roof beam 5 is the same as the moving speed of the support, and the extension length is the same as the cutting interval of the coal cutter, so that the support moving and supporting process is completed.

[0043] B, the placing of the filling bag: after the support moving is completed, the staff first flips the protection small plate 7 and fixes it on the protection plate 3, so that the through slot is in an open state. The transport flat plate 6 is placed in the protection plate 3. Then, the first filling bag 9 and the second filling bag 10 are placed on the transport flat plate 6, and the horizontal rods on the two sides of the second filling bag 10 are hung on the limiting hooks 12 respectively. Then, the filling sleeves 21 of the first filling bag 9 and the second filling bag 10 are pulled, and the transport flat plate 6 is pushed to pass through the through slot and is located at one end of the sliding rail 8. After completion, the protection small plate 7 is flipped and reset to close the through slot. At this time, the filling sleeves 21 of the first filling bag 9 and the second filling bag 10 are still left in the inner side of the protection plate 3, and the placing of the filling bag is completed. The folding process of the filling bag is as follows: before being placed in the transport flat plate 6, the first filling bag 9 and the second filling bag 10 need to be folded in advance. As shown in Figure 6 and 7 , the specific folding method is to fold the first filling bag 9 and the second filling bag 10 by first compressing and stacking along the length direction of the filling bag and then folding along the height direction of the filling bag.

[0044] C, the setting of the filling bag: the staff first controls the telescopic oil cylinder 16 to drive the sliding frame to move, so that the fixed horizontal rod and the sliding horizontal rod 18 are stopped at the positions corresponding to the lifting column 13 respectively, and the hooking openings of the bag lifting hooks 20 are in an open state. Then, the lifting motor is controlled to rotate forward, so that the lifting hooks 15 on each chain 14 start to move upward. When the lifting hooks 15 reach the positions of the horizontal rods 11, the horizontal rods 11 are hung and moved away from the limiting hooks 12. At this time, the second filling bag 10 starts to unfold upward and downward. When the lifting hooks 15 reach the upper gears, the horizontal rods 11 are transferred from the lifting hooks 15 to the bag lifting hooks 20, and the hooking openings of the bag lifting hooks 20 are closed. At the same time, the lifting motor is controlled to rotate reversely, so that the lifting hooks 15 start to descend and are separated from the horizontal rods 11. When the lifting hooks 15 reach the lower gears, the lifting motor stops working. As shown in Figure 9 , the horizontal rods 11 are transferred from the lifting hooks 15 to the bag lifting hooks 20. Figure 10As shown, then control drive motor work with the sliding crossbar 18 to the support plate 17 the other end of the slide, increase the fixed horizontal bar lower bag hook 20 and the sliding crossbar lower bag hook 20 between the distance, so as to drive the filling bag unfolded after the upper and lower along the rear roof beam 5 stretch out direction unfolded, then telescopic oil cylinder 16 drive filling bag overall to the rear roof beam 5 below, complete filling bag of branch set work;

[0045] D, high water material preparation: in the process of step C, while the high water material preparation, layout two groups of stirring device, each group consists of two stirring barrels, A, B group of materials and water according to the design of water cement ratio respectively added to one of the two stirring barrels in which stirring, stirring 2 minutes after the completion of the stirring, when the need for high water material filling, through two delivery pump respectively the group in A, B slurry liquid respectively transported to the working face, A, B slurry pipeline in the delivery into the working face, using three way connection before, make the slurry mixed and by a 19mm high pressure rubber pipe to the working face, the pipe in close to the working face one end with valve; when the group of stirring device begins to slurry delivery, the other group of repeated above process begins the A, B slurry preparation in the group; until the slurry delivery in the group stirring device is completed, at this time the other group of A, B slurry preparation is completed; delivery pump and the group is disconnected and connected with another group to continue the slurry delivery, while the group of A, B slurry preparation, so repeated to ensure the continuous preparation and delivery process of high water material;

[0046] E, high water material frame back filling: after the completion of the above work, the staff in the protective plate 3 inside the working surface 19mm high pressure rubber pipe into the second filling bag 10 filling sleeve 21, with the rubber pipe and sleeve with a tie tightly and open high pressure rubber pipe valve, at this time open the delivery pump to the second filling bag 10 into the slurry, the second filling bag 10 with the slurry injection began to swell, its top from two support plate 17 between the end of the rear roof beam 5, when the slurry in the second filling bag 10 face to the lower end of the rear roof beam 5, close the valve and take out the high pressure rubber pipe, then with the second filling bag 10 filling sleeve with a tie tightly dead (at this time the second filling bag 10 in the complete filling state, while the first filling bag 9 is still in the folded state); then control the bag hook 20 hook mouth in the open state, the second filling bag 10 both sides of the crossbar 11 from the bag hook 20 out, then control telescopic oil cylinder 16 contraction makes the sliding crossbar 18 reset to the front roof beam 4 below; finally make the rear roof beam 5 retract to the front roof beam 4, the high pressure rubber pipe into the first filling bag 9 filling sleeve 21, with the rubber pipe and sleeve with a tie tightly and open high pressure rubber pipe valve, at this time open the delivery pump to the first filling bag 9 into the slurry, when the first filling bag 9 swell interface top, close the valve and take out the high pressure rubber pipe, then with the first filling bag 9 filling sleeve with a tie tightly dead, such as Figure 5The filling body support process of the position is completed as shown;

[0047] F, the filling support of the whole working face goaf: after the filling body support work of the next support is completed, the steps A-E are repeated, and the filling body support work after the next support is continued along the coal cutting direction of the coal mining machine.

[0048] The above only is the preferred embodiment of the present application, it should be pointed out that: for ordinary skilled person in the art, without departing from the principles of the present application, can also make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A high-water material goaf rapid filling system, comprising a base, a plurality of hydraulic oil cylinders, a protective plate, a front roof beam and a rear roof beam, the plurality of hydraulic oil cylinders and the protective plate are fixed on the base, the front roof beam is above the base and is connected with the base through the hydraulic oil cylinders and the protective plate, the rear roof beam is placed inside the front roof beam and can slide out from inside the front roof beam, characterized in that, The transport plate, the lifting device and the bag erecting device are further included; The protective plate is provided with a through slot, and the slide rail is arranged along the sliding direction of the rear top beam on the base, one end of the slide rail is below the junction of the front top beam and the rear top beam, and the other end penetrates through the through slot of the protective plate, the width of the through slot is slightly larger than the width of the transport plate, so that the transport plate can pass through the through slot; The transport plate is provided with a pulley below, the transport plate is installed on the slide rail through the pulley, so that the transport plate can move along the slide rail, the filling bag is placed on the transport plate, a horizontal rod is arranged on each side of the filling bag, and the two horizontal rods are connected with the filling bag through fixing belts; at least one limiting hook is symmetrically arranged on the position close to the two sides of the transport plate, and the horizontal rod is hung on the limiting hook, so as to limit the filling bag. The lifting device includes at least two lifting columns, when the transport plate is at one end of the slide rail, the lifting columns are symmetrically arranged on the two sides of the transport plate, and the position and the number of the lifting columns correspond to the position and the number of the limiting hooks; a gear is arranged at the upper end and the lower end of each side of each lifting column, one of the gears is coaxially connected with the lifting motor through a rotating shaft, the two gears are connected through a chain, at least one lifting hook is arranged on the chain, the chain can drive the lifting hook to move along the chain when the chain rotates, when the lifting hook reaches the position of the horizontal rod, the horizontal rod can be driven to leave the limiting hook, so that the filling bag starts to expand upward and downward; The bag erecting device includes a telescopic oil cylinder and a sliding table, the sliding table includes two supporting plates, a sliding frame, a driving motor, a fixed horizontal rod and a sliding horizontal rod, the two supporting plates are parallel to the front top beam, and one end of each of the two supporting plates is fixed on the sliding frame, the sliding frame is installed on the lower part of the front top beam, and the sliding frame can slide relative to the front top beam along the extension direction of the rear top beam; the telescopic oil cylinder is fixed on the lower part of the front top beam, and the extension end of the telescopic oil cylinder is connected with the sliding frame, the extension of the telescopic oil cylinder can drive the sliding frame to slide, so that the other end of the two supporting plates extends out of the front top beam; a sliding groove is arranged on the opposite side of each of the two supporting plates, the sliding horizontal rod is arranged between the two supporting plates, and the two ends of the sliding horizontal rod are arranged in the sliding grooves of the two supporting plates, the driving motor is fixed on the sliding frame, and the driving motor is connected with the sliding horizontal rod through a transmission chain, the driving motor can drive the sliding horizontal rod to move in the sliding grooves relative to the two supporting plates, and the fixed horizontal rod is fixed on the lower part of the two supporting plates; a bag erecting hook is arranged on the lower part of each of the fixed horizontal rod and the sliding horizontal rod, when the two bag erecting hooks are at the corresponding positions of the lifting columns, the lifting hook drives the horizontal rod to reach the position of the bag erecting hook, the two horizontal rods can be hung on the two bag erecting hooks, then when one of the bag erecting hooks moves along with the sliding horizontal rod, the filling bag expanded upward and downward can be driven to expand forward and backward along the extension direction of the rear top beam, and then the telescopic oil cylinder drives the filling bag to move as a whole, so that the bag erecting work is completed.

2. The high-water material void rapid filling system of claim 1, wherein, The protective small plate is arranged at the through slot and is hinged between the protective plate and the protective small plate, so that the protective small plate can be flipped relative to the protective plate and closed or opened to the through slot.

3. The high-water material void rapid filling system of claim 1, wherein, The number of the limiting hooks and the lifting columns is four, the lifting column is a telescopic rod with a limiting bolt, and the height of the telescopic rod can be adjusted and fixed through the limiting bolt.

4. The high-water material void rapid filling system of claim 1, wherein, The bag erecting hook is an electrically controlled closing hook, and the hook opening can be opened or closed through electric control.

5. The high-water material void rapid filling system of claim 1, wherein, The filling bag is composed of a first filling bag and a second filling bag, the first filling bag is on the upper portion of the second filling bag, two horizontal rods are arranged on the two sides of the second filling bag respectively, the height of the first filling bag after being completely filled is greater than the height of the rear roof beam, and the first filling bag and the second filling bag are respectively provided with filling sleeves for filling the first filling bag and the second filling bag with high-water material respectively.

6. A method of using the high water material goaf rapid filling system according to claim 1, characterized in that, The specific steps are as follows: A, the quick filling system moves forward after the coal mining machine cuts coal, and forms a to-be-filled area behind the coal mining machine, at this time, the quick filling system moves forward with the coal mining machine, in the process of moving forward, the gear on the front roof beam is controlled to rotate by the motor, the rear roof beam is extended backward to control the roof of the to-be-filled area, the extension speed of the rear roof beam is the same as the forward moving speed of the support, and the extension length is the same as the cutting interval of the coal mining machine, so that the forward moving support process is completed; B, the filling bag is placed: after the moving is completed, the staff first flips the protection small plate and fixes it on the protection plate, so that the through slot is in an open state, the transport flat plate is in the protection plate, then the first filling bag and the second filling bag are placed on the transport flat plate, the horizontal rods on the two sides of the second filling bag are hung on the limiting hooks respectively, then the filling sleeves of the first filling bag and the second filling bag are pulled respectively, and the transport flat plate is pushed to pass through the through slot and is located at one end of the slide rail, after completion, the protection small plate is flipped and reset to close the through slot, at this time, the filling sleeves of the first filling bag and the second filling bag are still in the inner side of the protection plate, and the filling bag placing work is completed; C, the filling bag is set: the staff first controls the telescopic oil cylinder to drive the sliding frame to move, so that the bag standing hooks of the fixed horizontal rod and the sliding horizontal rod are respectively stopped at the positions corresponding to the lifting columns, and the hook openings of the bag standing hooks are controlled to be in an open state, then the lifting motor is controlled to rotate forward, and then the lifting hooks on each chain are driven to move upward by the rotation of the gear, when the lifting hooks reach the positions of the horizontal rods, the horizontal rods can be hung and driven to leave the limiting hooks, at this time, the second filling bag starts to expand upward and downward, until the lifting hooks reach the upper gear, the horizontal rods are transferred from the lifting hooks to the bag standing hooks, then the hook openings of the bag standing hooks are controlled to be closed, and the lifting motor is controlled to reverse, then the lifting hooks start to descend to be separated from the horizontal rods, until the lifting hooks stop the work of the lifting motor when reaching the lower gear; then the driving motor is controlled to work to drive the sliding horizontal rod to slide to the other end of the support plate, so that the distance between the lower bag standing hooks of the fixed horizontal rod and the lower bag standing hooks of the sliding horizontal rod is increased, so that the expanded filling bag can be expanded forward and backward along the extension direction of the rear roof beam, then the telescopic oil cylinder drives the filling bag to move as a whole to below the rear roof beam, and the setting work of the filling bag is completed; D. High water material preparation: In the process of step C, high water material preparation is carried out simultaneously, two sets of stirring devices are arranged, each set consists of two stirring barrels, the A, B component materials and water are added into the two stirring barrels of one set respectively according to the designed water-cement ratio, and stirring is carried out, after 2 minutes of stirring, the stirring is completed, when it is necessary to fill the high water material, the A, B slurry of the set is respectively transported to the working face through two delivery pumps, before the pipeline of the A, B slurry is transported into the working face, a tee joint is used to connect the pipelines to mix the slurry and deliver the slurry to the working face through a high-pressure rubber pipe, the pipe is provided with a valve at the end close to the working face; when the stirring device of the set starts to deliver the slurry, the other set repeats the above process to start the preparation of A, B slurry of the set; after the delivery of the slurry in the stirring device of the set is completed, the preparation of A, B slurry of the other set is completed at this time; the delivery pump is disconnected from the set and connected to the other set to continue the delivery of the slurry, at the same time, the set re-prepares A, B slurry, and the process is repeated to ensure continuous preparation and delivery of the high water material; E. High water material rear filling: after the above work is completed, the working personnel puts the high-pressure rubber pipe on the working face into the filling sleeve of the second filling pack inside the protection plate, tightens the rubber pipe and the sleeve opening with a tie, and opens the valve of the high-pressure rubber pipe, at this time, the delivery pump is started to inject the slurry into the second filling pack, the second filling pack starts to expand with the injection of the slurry, the top of the second filling pack passes between the two support plates, when the slurry surface in the second filling pack reaches the lower end surface of the rear roof beam, the valve is closed and the high-pressure rubber pipe is taken out, then the filling sleeve opening of the second filling pack is completely tied with a tie; then the hook opening of the bag hanging hook is controlled to be in an open state, the cross bars on both sides of the second filling pack are dropped from the bag hanging hook, then the telescopic oil cylinder is controlled to retract to reset the sliding cross bar below the front roof beam; finally, the rear roof beam is retracted into the front roof beam, the high-pressure rubber pipe is put into the filling sleeve of the first filling pack, the rubber pipe and the sleeve opening are tightened with a tie, and the valve of the high-pressure rubber pipe is opened, at this time, the delivery pump is started to inject the slurry into the first filling pack, when the first filling pack expands to the top, the valve is closed and the high-pressure rubber pipe is taken out, then the filling sleeve opening of the first filling pack is completely tied with a tie, and the filling body support process at the position is completed; F. Filling support of the entire working face goaf: after the filling body support work of this time is completed, the above steps A-E are repeated to continue the filling body support work behind the next roof support in the coal cutting direction of the coal mining machine.

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