CN115977726A

CN115977726A - Coal mine cemented filling device and method for arranging coal gangue aggregates

Info

Publication number: CN115977726A
Application number: CN202310135251.XA
Authority: CN
Inventors: 付强; 杨彦群; 李丽绒; 杨科; 董志勇; 池小楼; 刘飞跃; 王浩; 郭超; 陈强; 章曼
Original assignee: Anhui University of Science and Technology; Shanxi Coking Coal Group Co Ltd
Current assignee: Anhui University of Science and Technology; Shanxi Coking Coal Group Co Ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-04-18

Abstract

The invention relates to the technical field of coal mine cemented filling, in particular to a coal mine cemented filling device and a coal mine cemented filling method for distributing coal gangue aggregates, wherein the coal mine cemented filling device comprises a bottom plate, a moving mechanism is arranged on the bottom surface of the bottom plate, a transfer bin is arranged on the top surface of the bottom plate, and the transfer bin is connected with a conveying pipe; a leakage-proof plate is hinged to the front end of the bottom plate, a first air cylinder is installed between the leakage-proof plate and the top surface of the bottom plate, a telescopic plate is installed at the top end of the leakage-proof plate in a sliding mode, a discharging mechanism is arranged on the outer side surface of the telescopic plate and close to the top end of the telescopic plate, and a first guide pipe is connected between the discharging mechanism and the transfer bin; a material pipe length adjusting assembly is arranged in the transfer bin; in the using process, workers do not need to convey fillers to the goaf needing to be filled, so that the filling working efficiency is improved; the using state of the filler can be adjusted, and the practicability of the invention is improved.

Description

Coal mine cemented filling device and method for arranging coal gangue aggregates

Technical Field

The invention relates to the technical field of coal mine cemented filling, in particular to a coal mine cemented filling device and a coal mine cemented filling method for distributing coal gangue aggregates.

Background

The coal gangue is solid waste discharged in the coal mining process and the coal washing process, and is a black grey rock which has lower carbon content and is harder than coal and is associated with a coal bed in the coal forming process; in the cemented filling mining method, coal gangue is usually crushed, the crushed coal gangue is mixed with a cementing material and a water mixture to prepare filling aggregate slurry, and then the slurry is guided to a goaf by a concrete pump to perform filling work, so that the waste utilization of the coal gangue is realized.

In the prior art, patent with application number CN202221697622.0 provides mine full tailings cemented filling equipment, which comprises a workbench, wherein a stirring bin is arranged at the upper end of the workbench, a motor is installed at the lower end of the workbench, a rotating shaft is connected to the upper end of the motor, a stirring shaft is arranged in the middle of an inner cavity of the stirring bin, belt pulleys are sleeved on the outer sides of the stirring shaft and the rotating shaft, a conveying belt is sleeved on the outer sides of the belt pulleys, and two groups of first circular tubes and one group of second circular tubes are connected to the outer side of the stirring shaft through supporting rods; the device can effectively and uniformly mix the aggregate and the cementing agent, effectively improve the mixing and stirring effects, and the quick solidification is conveniently realized by adding quicklime powder in real time to mix and stir the aggregate and the cementing agent, so that the manufacturing efficiency of filling the cementing body is effectively improved.

However, the above device has the following problems in the use process:

1. the above-mentioned device is used for preparing filling material on the spot in the goaf, but this mode needs to transport raw materials (coal gangue, cementitious material, water mixture, etc.) to the goaf when preparing filling material, and the goaf cross-section is generally narrower, so the transport work of raw materials is more difficult, and filling work and preparation work are carried out simultaneously in a narrow working environment, and the filling work efficiency to the goaf can be reduced.

2. The filler that above-mentioned device preparation was accomplished falls subaerial or has the external device of transport function to the collecting space through the guide plate, lacks the function of carrying out initiative filling work to the filler in the device, so still need the staff to transport the filler to the collecting space that needs to fill, leads to filling work's efficiency further to reduce.

Disclosure of Invention

The invention aims to provide a coal mine cemented filling device for distributing coal gangue aggregates, which aims to solve the problems in the background technology.

The purpose of the invention can be realized by the following technical scheme:

a coal mine cemented filling device for distributing coal gangue aggregates comprises a bottom plate, wherein a moving mechanism is installed on the bottom surface of the bottom plate, a transfer bin is arranged on the top surface of the bottom plate, the transfer bin is connected with a conveying pipe for conveying fillers, and the transfer bin is used for storing the fillers led into the ground from the ground;

the front end of the bottom plate is hinged with a leakage-proof plate, a first air cylinder is arranged between the leakage-proof plate and the top surface of the bottom plate, a telescopic plate is slidably arranged at the top end of the leakage-proof plate, a discharging mechanism is arranged on the outer side surface of the telescopic plate at a position close to the top end of the telescopic plate, a first guide pipe is connected between the discharging mechanism and the transfer bin, and the discharging mechanism is used for guiding the filling material in the transfer bin to a goaf to be filled;

the transfer bin is internally provided with a material pipe length adjusting assembly, and the material pipe length adjusting assembly is used for enabling the material conveying pipe to surround the periphery of the transfer bin so as to adjust the working length of the material conveying pipe.

Further, the top surface fixed mounting of bottom plate has L shape connecting rod, fixedly connected with anchor strut between two medial surfaces of L shape connecting rod, the one end fixed mounting that the bottom plate was kept away from to L shape connecting rod has the mounting panel, the bottom surface fixedly connected with electric telescopic handle of mounting panel.

Furthermore, the transfer bin comprises a rotating base fixedly installed on the top surface of the bottom plate, a material storage barrel, a cover body and a driving assembly for driving the material storage barrel to rotate on the top surface of the rotating base, the material storage barrel is fixedly installed on the top surface of the rotating base, the material pipe length adjusting assembly is sleeved on the periphery of the material storage barrel, a connecting assembly is arranged between the material pipe length adjusting assembly and the periphery of the material storage barrel, and the connecting assembly is used for controlling the relative circumferential rotation state between the material pipe length adjusting assembly and the material storage barrel;

the cover body is fixedly installed at the bottom end of the electric telescopic rod and is positioned right above the material storage barrel, a hollow pipe is fixedly connected to the center position of the bottom surface of the cover body, a plurality of stirring blades are fixedly connected to the periphery of the hollow pipe, a concrete pump is fixedly installed on the top surface of the cover body, a second guide pipe is fixedly connected to the inlet end of the concrete pump, one end, far away from the concrete pump, of the second guide pipe sequentially penetrates through the cover body and the outer side of the hollow pipe, and one end, far away from the concrete pump, of the second guide pipe extends to the bottom end position of the hollow pipe;

the fixed through type of top surface of lid installs inlet pipe three, the one end that the lid was kept away from to inlet pipe three is external to have water supply installation.

Further, the driving assembly comprises a fixed seat fixedly mounted on the top surface of the bottom plate and a driven belt wheel fixedly mounted at the bottom end of the periphery of the material storage barrel, a first motor is fixedly mounted in the fixed seat, a driving belt wheel is fixedly mounted at the shaft end of an output shaft of the first motor, and a transmission belt is connected between the driving belt wheel and the driven belt wheel;

seted up on driven pulleys's the top surface a plurality ofly with coupling assembling cooperates the spacing hole of using, it is a plurality of spacing hole sets up about the axis circumference array of storage bucket on driven pulleys's top surface.

Furthermore, the material pipe length adjusting assembly comprises a sleeve sleeved on the periphery of the storage barrel, the sleeve is positioned above the driven belt wheel, the top end of the sleeve is higher than the top end of the storage barrel, and the top end of the sleeve is positioned below the cover body;

a surrounding groove is formed in the periphery of the sleeve, a supporting ring located below the surrounding groove is fixedly connected to the periphery of the sleeve, threads located below the supporting ring are arranged on the periphery of the sleeve, and a limiting ring fixedly installed on the periphery of the sleeve is arranged below the threads;

and a second feeding pipe is arranged at the upper end of the periphery of the sleeve, one end of the second feeding pipe, which is far away from the sleeve, is connected with the conveying pipe, and the part, which is far away from the second feeding pipe, of the conveying pipe is arranged on the periphery of the sleeve in a surrounding manner through a surrounding groove.

Furthermore, the connecting assembly comprises a lifting ring which is arranged on the periphery of the sleeve through a thread, and a plurality of handles for rotating the lifting ring are fixedly connected to the periphery of the lifting ring;

the bottom surface of the lifting ring is connected with a circular ring sleeved on the periphery of the sleeve in a rotating mode, a plurality of insertion rods equal to the plurality of limiting holes in number are fixedly connected to the bottom surface of the circular ring, the insertion rods penetrate through the limiting rings in a sliding mode, and one ends, far away from the circular ring, of the plurality of insertion rods are inserted into the plurality of limiting holes in a sliding mode respectively.

Furthermore, one end of the bottom plate is fixedly connected with two extension rods, one end of each extension rod, which is far away from the bottom plate, is fixedly provided with a connecting seat, a connecting block is rotatably arranged in each connecting seat, and one ends of the two connecting blocks, which are far away from the connecting seats, are fixedly connected with the leakage-proof plate together;

and two ends of the first cylinder are respectively hinged with the leakage-proof plate and the bottom plate.

Furthermore, a first extending block is fixedly connected to the inner side surface of the leakage-proof plate at a position close to the bottom end of the leakage-proof plate, and two sliding grooves are symmetrically formed in the two side positions of the inner side surface of the leakage-proof plate;

two slide rails are symmetrically installed at two side positions on the outer side surface of the telescopic plate, the two slide rails are respectively installed in the two sliding grooves in a sliding mode, the bottom end of the inner side surface of the telescopic plate is fixedly connected with a second extending block, and a second extending block are fixedly connected with a second air cylinder.

Furthermore, the discharging mechanism comprises a material distributing cylinder fixedly arranged at the top end of the outer side surface of the expansion plate and a motor II fixedly arranged on the inner side surface of the expansion plate, a plurality of discharging pipes distributed in an array manner along the length direction of the material distributing cylinder are fixedly connected to the outer side surface of the material distributing cylinder, a first feeding pipe is fixedly connected to one end of the inner side surface of the material distributing cylinder, and the first guide pipe is fixedly connected between one end of the first feeding pipe, which is far away from the material distributing cylinder, and the discharging end of the concrete pump;

a rotating shaft is rotatably arranged between two ends of the interior of the material separating barrel, a helical blade is fixedly arranged on the periphery of the rotating shaft, one end of the rotating shaft, which is close to the motor II, rotatably penetrates through the material separating barrel, and one end of the rotating shaft, which is close to the motor II, is fixedly provided with a bevel gear I;

an output shaft of the motor II penetrates through the telescopic plate in a rotating mode, and a bevel gear II meshed with the bevel gear I is fixedly installed at the shaft end of the output shaft of the motor II;

and a protective cover wrapped on the peripheries of the first bevel gear and the second bevel gear is fixedly installed between one end of the material distribution barrel close to the second motor and the outer side surface of the expansion plate.

Another object of the present invention is to provide a method for filling a coal mine cemented filling apparatus with arranged coal gangue aggregates, comprising the steps of:

s1: moving the device to a working position;

s2: starting the first air cylinder to drive the leakage-proof plate to rotate by taking the connecting seat as an axis, so that the bottom end of the leakage-proof plate is in extrusion contact with the ground of the goaf; starting a cylinder II to drive the expansion plate to ascend, so that the expansion plate and the leak-proof plate are cut off in the goaf to form a prefilled area;

s3: the conveying pipe conveys the filler on the ground into a storage barrel, the concrete pump conveys the filler in the storage barrel into a discharging mechanism, and the discharging mechanism fills the filler into a pre-filling area;

s4: after filling, the moving device forms a row of pre-filling areas, and in the moving process, the material pipe length adjusting assembly can change the working length of the material conveying pipe in a winding mode of the material conveying pipe, so that the material conveying pipe is adaptive to the working position of the device.

The invention has the beneficial effects that:

1. the goaf is filled by conveying prepared filler to the device from the ground through the conveying pipe, and the working length of the conveying pipe can be flexibly adjusted through the arrangement of the material pipe length adjusting assembly, so that the filling position of the device can be quickly adjusted; compared with the prior art, the invention solves the problem of low filling efficiency caused by manufacturing the filler in real time.

2. In the using process of the device, the first air cylinder is started to drive the leakage-proof plate to rotate by taking the connecting seat as an axis, so that the bottom end of the leakage-proof plate is in extrusion contact with the ground of the goaf; compared with the prior art, the active filling device has the advantages that when the active filling device is used, workers do not need to convey fillers to the goaf to be filled, and the filling working efficiency is improved.

3. After the filler enters the storage barrel, the first motor is started to drive the storage barrel to rotate, so that the storage barrel and the hollow pipe rotate relatively, the plurality of stirring blades have the function of uniformly stirring the filler in the storage barrel, the cover body can be controlled to be opened and closed through the concrete pump, workers can observe the state of the filler in the storage barrel conveniently, when the filler is dry, water can be injected into the storage barrel through the external water supply device, the using state of the filler can be quickly adjusted by combining the stirring function of the filler in the storage barrel, and the practicability of the invention is improved through the arrangement.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts;

FIG. 1 is a schematic diagram of the overall three-dimensional structure of the present invention;

FIG. 2 is a schematic diagram of the overall three-dimensional structure of the present invention;

FIG. 3 is a first three-dimensional structure of the connection between the anti-leakage board and the expansion board of the present invention;

FIG. 4 is a schematic diagram of a three-dimensional structure of the connection relationship between the anti-leakage plate and the expansion plate of the present invention;

FIG. 5 is a schematic three-dimensional structure of the connection between the discharging mechanism and the retractable plate according to the present invention;

FIG. 6 is a schematic view of the discharge mechanism of the present invention;

FIG. 7 is an enlarged view of portion A of FIG. 6;

FIG. 8 is a schematic three-dimensional structure diagram I of the transfer chamber in the present invention;

FIG. 9 is a schematic diagram of a three-dimensional structure of a transfer chamber in the present invention;

fig. 10 is an enlarged view of portion B of fig. 9;

FIG. 11 is a schematic three-dimensional view of the connection between the second conduit and the hollow tube of the present invention;

FIG. 12 is a schematic three-dimensional view of the cover of the present invention;

the reference numbers in the figures are as follows:

1-leakproof plate, 2-telescopic plate, 3-discharging mechanism, 4-feeding pipe I, 5-first guide pipe, 6-L-shaped connecting rod, 7-reinforcing rod, 8-mounting plate, 9-electric telescopic rod, 10-cover body, 11-feeding pipe II, 12-feeding pipe, 13-sleeve, 14-driven pulley, 15-rotating base, 16-bottom plate, 17-moving mechanism, 18-driving belt, 19-driving pulley, 20-fixing base, 21-motor I, 22-extension rod, 23-connecting base, 24-cylinder I, 25-connecting block, 26-sliding groove, 27-sliding rail, 28-motor II, 29-concrete pump, 30-extension block I, 31-cylinder II, 32-extension block II, 33-charging barrel, 34-discharging pipe, 35-protective cover, 36-helical blade, 37-rotating shaft, 38-bevel gear I, 39-bevel gear II, 40-storage barrel, 41-surrounding groove, 42-surrounding groove, 43-thread, 44-lifting ring, 45-handle, 46-limiting ring, 48-inserting ring, 48-limiting ring, 48-supporting ring, 53-hollow pipe, 50-hollow pipe, and 52-hollow pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Practice of example 1:

referring to fig. 1 to 4, 8, 9, 11 and 12, in an embodiment of the present invention, a coal mine cemented filling apparatus for arranging coal gangue aggregates includes a bottom plate 16, a moving mechanism 17 is installed on a bottom surface of the bottom plate 16, a transfer bin is installed on a top surface of the bottom plate 16, the transfer bin is connected to a conveying pipe 12 for conveying filling material, and the transfer bin is used for storing filling material introduced into the ground from the ground;

the front end of the bottom plate 16 is hinged with a leakage-proof plate 1, a first air cylinder 24 is arranged between the leakage-proof plate 1 and the top surface of the bottom plate 16, a telescopic plate 2 is slidably arranged at the top end of the leakage-proof plate 1, a discharging mechanism 3 is arranged on the outer side surface of the telescopic plate 2 at a position close to the top end of the telescopic plate, a first guide pipe 5 is connected between the discharging mechanism 3 and the transfer bin, and the discharging mechanism 3 is used for guiding the filling material in the transfer bin to a goaf to be filled;

the transfer bin is provided with a material pipe length adjusting assembly, and the material pipe length adjusting assembly is used for enabling the material conveying pipe 12 to surround the periphery of the transfer bin so as to adjust the working length of the material conveying pipe 12.

As shown in fig. 1 and 2, an L-shaped connecting rod 6 is fixedly mounted on the top surface of the bottom plate 16, a reinforcing rod 7 is fixedly connected between two inner side surfaces of the L-shaped connecting rod 6, a mounting plate 8 is fixedly mounted at one end of the L-shaped connecting rod 6 far away from the bottom plate 16, and an electric telescopic rod 9 is fixedly connected to the bottom surface of the mounting plate 8.

As shown in fig. 1, fig. 2, fig. 8, fig. 9, fig. 11 and fig. 12, the transfer bin includes a rotating base 15 fixedly installed on the top surface of the bottom plate 16, a stock bucket 40, a cover 10 and a driving assembly for driving the stock bucket 40 to rotate on the top surface of the rotating base 15, the stock bucket 40 is fixedly installed on the top surface of the rotating base 15, a material pipe length adjusting assembly is sleeved on the periphery of the stock bucket 40, a connecting assembly is arranged between the material pipe length adjusting assembly and the periphery of the stock bucket 40, and the connecting assembly is used for controlling the relative circumferential rotation state between the material pipe length adjusting assembly and the stock bucket 40;

the cover body 10 is fixedly installed at the bottom end of the electric telescopic rod 9, the cover body 10 is located right above the material storage barrel 40, a hollow pipe 51 is fixedly connected to the center of the bottom surface of the cover body 10, a plurality of stirring blades 52 are fixedly connected to the periphery of the hollow pipe 51, a concrete pump 29 is fixedly installed on the top surface of the cover body 10, a second conduit 50 is fixedly connected to the inlet end of the concrete pump 29, one end, far away from the concrete pump 29, of the second conduit 50 sequentially penetrates through the cover body 10 and the outer side of the hollow pipe 51, and one end, far away from the concrete pump 29, of the second conduit 50 extends to the bottom end of the hollow pipe 51;

a third feeding pipe 53 is fixedly installed on the top surface of the cover body 10 in a penetrating manner, and one end, far away from the cover body 10, of the third feeding pipe 53 is externally connected with a water supply device; through adding at the lid 10 top surface and being equipped with inlet pipe three 53, conveniently adjust the user state of the packing in the storage bucket 40, improved the practicality of device.

As shown in fig. 1 and 2, the driving assembly includes a fixed seat 20 fixedly installed on the top surface of the bottom plate 16 and a driven pulley 14 fixedly installed at the bottom end position of the periphery of the material storage bucket 40, a first motor 21 is fixedly installed in the fixed seat 20, a driving pulley 19 is fixedly installed at the shaft end of an output shaft of the first motor 21, and a transmission belt 18 is connected between the driving pulley 19 and the driven pulley 14;

a plurality of limiting holes 49 matched with the connecting assembly for use are formed in the top surface of the driven belt wheel 14, and the limiting holes 49 are arranged on the top surface of the driven belt wheel 14 in a circumferential array mode relative to the axis of the storage barrel 40. In the driving assembly, a first motor 21 drives a driving belt wheel 19 to rotate, and the driving belt wheel 19 drives a storage bucket 40 to rotate on a rotating base 15 through a driving belt 18 and a driven belt wheel 14.

As shown in fig. 8 and 9, the material pipe length adjusting assembly comprises a sleeve 13 sleeved on the periphery of the material storage barrel 40, the sleeve 13 is positioned above the driven pulley 14, the top end of the sleeve 13 is higher than the top end of the material storage barrel 40, and the top end of the sleeve 13 is positioned below the cover body 10;

a surrounding groove 41 is formed in the periphery of the sleeve 13, a supporting ring 42 positioned below the surrounding groove 41 is fixedly connected to the periphery of the sleeve 13, a thread 43 positioned below the supporting ring 42 is arranged on the periphery of the sleeve 13, and a limiting ring 46 fixedly installed on the periphery of the sleeve 13 is arranged below the thread 43;

a second feeding pipe 11 is arranged at the upper end of the periphery of the sleeve 13, one end of the second feeding pipe 11, which is far away from the sleeve 13, is connected with a conveying pipe 12, and the part, which is far away from the second feeding pipe 11, of the conveying pipe 12 is arranged on the periphery of the sleeve 13 in a surrounding manner through a surrounding groove 41.

As shown in fig. 1 and fig. 2, one end of the bottom plate 16 is fixedly connected with two extension rods 22, one end of each extension rod 22, which is far away from the bottom plate 16, is fixedly provided with a connecting seat 23, a connecting block 25 is rotatably installed in the connecting seat 23, and one ends of the two connecting blocks 25, which are far away from the connecting seat 23, are jointly and fixedly connected with a leakage-proof plate 1;

two ends of the first air cylinder 24 are respectively hinged with the leakage-proof plate 1 and the bottom plate 16.

The leak-proof plate 1 is used for blocking leakage of the filler, so that the filler can be stably solidified in the goaf conveniently; the first air cylinder 24 can drive the leakage-proof plate 1 to rotate, when the device moves, the first air cylinder 24 drives the leakage-proof plate 1 to rotate until the bottom surface of the leakage-proof plate 1 is separated from the ground of the goaf, and after the device moves to a specified working position, the first air cylinder 24 drives the leakage-proof plate 1 to rotate until the bottom surface of the leakage-proof plate 1 is in extrusion contact with the ground of the goaf.

As shown in fig. 4, a first extending block 30 is fixedly connected to the inner side surface of the leakage-proof plate 1 at a position close to the bottom end thereof, and two sliding grooves 26 are symmetrically formed at two side positions on the inner side surface of the leakage-proof plate 1;

two slide rails 27 are symmetrically installed at two side positions on the outer side surface of the expansion plate 2, the two slide rails 27 are respectively installed in the two slide grooves 26 in a sliding mode, the bottom end of the inner side surface of the expansion plate 2 is fixedly connected with a second extension block 32, and the second extension block 32 and a second extension block 30 are fixedly connected with a second cylinder 31. The second cylinder 31 is used for driving the telescopic plate 2 to lift, the telescopic plate 2 lifts according to the height of the goaf, the arrangement of the telescopic plate 2 enables the goaf-cleaning device to be suitable for the goafs with different heights, and the practicability of the device is improved.

The coal gangue is solid waste discharged in coal mining process and coal washing process; the utilization of the waste of the coal gangue is realized in the cemented filling mining method. In the prior art, patent with application number CN202221697622.0 provides a mine whole tailing cemented filling device, aggregates and cementing agents are effectively and fully mixed, the mixing and stirring effects are effectively improved, quicklime powder is conveniently added in real time to mix the aggregates and the cementing agents for rapid solidification, and the manufacturing efficiency of filling the cemented body is effectively improved.

However, the above device has the following problems in the use process:

1. the device is used for preparing filling materials in the goaf on the spot, but in the mode, raw materials (coal gangue, cementing materials, water mixture and the like) need to be conveyed to the goaf when the filling materials are prepared, the section of the goaf is generally narrow, so that the conveying work of the raw materials is difficult, and the filling work and the preparation work are simultaneously carried out in a narrow working environment, so that the filling work efficiency of the goaf is reduced.

In the present invention:

the goaf is filled by conveying prepared filler to the device from the ground through the conveying pipe 12, and the working length of the conveying pipe 12 can be flexibly adjusted through the arrangement of the material pipe length adjusting assembly, so that the filling position of the device can be quickly adjusted; compared with the prior art, the invention solves the problem of low filling efficiency caused by manufacturing the filler in real time;

after the filler enters the storage barrel 40, the first motor 21 is started to drive the storage barrel 40 to rotate, so that the storage barrel 40 and the hollow pipe 51 rotate relatively, the filler in the storage barrel 40 can be stirred and mixed by the stirring blades 52, and the cover body 10 can be controlled to be opened and closed by the concrete pump 29, so that a worker can observe the state of the filler in the storage barrel 40 conveniently.

When the length of the material conveying pipe 12 needs to be adjusted, the sleeve 13 and the material storage barrel 40 are enabled to synchronously rotate through the connecting assembly, namely, the driving assembly can simultaneously drive the sleeve 13 and the material storage barrel 40 to rotate, the rotation of the sleeve 13 can change the clamping length of the material conveying pipe 12 on the periphery of the sleeve 13, and therefore the function of quickly adjusting the working length of the material conveying pipe 12 is achieved.

In the using process of the anti-leakage device, the first air cylinder 24 is started to drive the anti-leakage plate 1 to rotate by taking the connecting seat 23 as an axis, so that the bottom end of the anti-leakage plate 1 is in extrusion contact with the ground of the goaf; the second cylinder 31 is started to drive the expansion plate 2 to ascend, so that the expansion plate 2 and the leakage-proof plate 1 are cut off in the goaf to form a prefilling area, the concrete pump 29 transfers the filler in the storage barrel 40 into the second cylinder 3, and then the filler in the second cylinder 3 is guided to the goaf to complete the active filling function.

Example 2:

referring to fig. 9 and 10, in embodiment 1, the connection assembly includes a lifting ring 44 threadedly mounted on the outer periphery of the sleeve 13 through a thread 43, and a plurality of handles 45 for rotating the lifting ring 44 are fixedly connected to the outer periphery of the lifting ring 44;

the bottom surface of the lifting ring 44 is rotatably connected with a circular ring 48 sleeved on the periphery of the sleeve 13, a plurality of insertion rods 47 with the same number with the plurality of limiting holes 49 are fixedly connected to the bottom surface of the circular ring 48, the insertion rods 47 penetrate through the limiting ring 46 in a sliding manner, and one ends of the plurality of insertion rods 47, which are far away from the circular ring 48, are respectively inserted in the plurality of limiting holes 49 in a sliding manner.

When the sleeve 13 and the storage barrel 40 need to be in a synchronous rotating state, the lifting ring 44 is rotated through the handle 45, so that the lifting ring 44 drives the circular ring 48 to descend, the circular ring 48 drives the plurality of inserting rods 47 to descend, and the bottom ends of the plurality of inserting rods 47 are slidably inserted into the plurality of limiting holes 49, so that the sleeve 13 and the storage barrel 40 are in a synchronous rotating state, and the connecting state is suitable for being used when the length of the conveying pipe 12 needs to be adjusted; similarly, when the sleeve 13 and the material storage barrel 40 need to be in a state of asynchronous rotation, the plurality of inserting rods 47 are moved upwards to be separated from the plurality of limiting holes 49.

Example 3:

referring to fig. 1 to 7, based on embodiment 2, the discharging mechanism 3 includes a material separating cylinder 33 fixedly mounted at a top end of an outer side surface of the expansion plate 2 and a second motor 28 fixedly mounted on an inner side surface of the expansion plate 2, a plurality of discharging pipes 34 distributed in an array along a length direction of the material separating cylinder 33 are fixedly connected to the outer side surface of the material separating cylinder 33, a first feeding pipe 4 is fixedly connected to a position of one end of the inner side surface of the material separating cylinder 33, and a first guide pipe 5 is fixedly connected between one end of the first feeding pipe 4 far away from the material separating cylinder 33 and a discharging end of the concrete pump 29;

a rotating shaft 37 is rotatably installed between two ends of the interior of the material separating barrel 33, a helical blade 36 is fixedly installed on the periphery of the rotating shaft 37, one end of the rotating shaft 37, which is close to the second motor 28, rotatably penetrates through the material separating barrel 33, and a first bevel gear 38 is fixedly installed at one end of the rotating shaft 37, which is close to the second motor 28;

an output shaft of the second motor 28 rotatably penetrates through the telescopic plate 2, and a second bevel gear 39 meshed with the first bevel gear 38 is fixedly mounted at the shaft end of a branch output shaft of the second motor 28;

a protective cover 35 which is wrapped on the peripheries of the first bevel gear 38 and the second bevel gear 39 is fixedly arranged between one end of the material separating barrel 33 close to the second motor 28 and the outer side surface of the expansion plate 2.

The second motor 28 drives the rotating shaft 37 to rotate through a second bevel gear 39 and a first bevel gear 38, the rotating shaft 37 drives the spiral blades 36 to rotate, and the rotation of the spiral blades 36 uniformly guides the filling material entering the material distribution barrel 33 through the first feeding pipe 4 to each discharging pipe 34, so that the filling material is uniformly guided to the goaf from the material distribution barrel 33.

Example 4:

referring to fig. 1 to 12, on the basis of embodiment 3, in this example, there is provided a filling method of a coal mine cemented filling apparatus for arranging coal gangue aggregates, comprising the steps of:

s1: moving the device to a working position;

s2: starting the first air cylinder 24 to drive the leakage-proof plate 1 to rotate by taking the connecting seat 23 as an axis, so that the bottom end of the leakage-proof plate 1 is in extrusion contact with the ground of the goaf; starting a second cylinder 31 to drive the expansion plate 2 to ascend, so that the expansion plate 2 and the leakage-proof plate 1 are cut off in the goaf to form a prefill zone;

s3: the conveying pipeline 12 conveys the filling materials on the ground into the storage barrel 40, the concrete pump 29 conveys the filling materials in the storage barrel 40 into the discharging mechanism 3, and the discharging mechanism 3 fills the filling materials into the pre-filling area;

s4: after filling, the displacement device forms a pre-filling zone of the row, in which the pipe length adjustment assembly changes the working length of the feed conveyor pipe 12 by winding the feed conveyor pipe 12, so that the feed conveyor pipe 12 is adapted to the working position of the device.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. The coal mine cemented filling device for distributing the coal gangue aggregates comprises a bottom plate (16), wherein a moving mechanism (17) is arranged on the bottom surface of the bottom plate (16), and is characterized in that a transfer bin is arranged on the top surface of the bottom plate (16), the transfer bin is connected with a conveying pipe (12) for conveying fillers, and the transfer bin is used for storing the fillers led into the ground from the ground;

the front end of the bottom plate (16) is hinged with a leakage-proof plate (1), a first air cylinder (24) is installed between the leakage-proof plate (1) and the top surface of the bottom plate (16), a telescopic plate (2) is installed at the top end of the leakage-proof plate (1) in a sliding mode, a discharging mechanism (3) is arranged on the outer side surface of the telescopic plate (2) and close to the top end of the telescopic plate, a first guide pipe (5) is connected between the discharging mechanism (3) and the transfer bin, and the discharging mechanism (3) is used for guiding a filling material in the transfer bin to a gob to be filled;

the material pipe length adjusting assembly is arranged in the transfer bin and used for enabling the material conveying pipe (12) to surround the periphery of the transfer bin so as to adjust the working length of the material conveying pipe (12).

2. The coal mine cemented filling device for arranging coal gangue aggregates according to claim 1, characterized in that an L-shaped connecting rod (6) is fixedly mounted on the top surface of the bottom plate (16), a reinforcing rod (7) is fixedly connected between two inner side surfaces of the L-shaped connecting rod (6), a mounting plate (8) is fixedly mounted at one end of the L-shaped connecting rod (6) far away from the bottom plate (16), and an electric telescopic rod (9) is fixedly connected to the bottom surface of the mounting plate (8).

3. The coal mine cemented filling device for arranging the coal gangue aggregates according to claim 2, wherein the transfer bin comprises a rotating base (15) fixedly installed on the top surface of the bottom plate (16), a stock bucket (40), a cover body (10) and a driving assembly for driving the stock bucket (40) to rotate on the top surface of the rotating base (15), the stock bucket (40) is fixedly installed on the top surface of the rotating base (15), the material pipe length adjusting assembly is sleeved on the periphery of the stock bucket (40), a connecting assembly is arranged between the material pipe length adjusting assembly and the periphery of the stock bucket (40), and the connecting assembly is used for controlling the relative circumferential rotation state between the material pipe length adjusting assembly and the stock bucket (40);

the cover body (10) is fixedly installed at the bottom end of the electric telescopic rod (9), the cover body (10) is located right above the material storage barrel (40), a hollow pipe (51) is fixedly connected to the center of the bottom surface of the cover body (10), a plurality of stirring blades (52) are fixedly connected to the periphery of the hollow pipe (51), a concrete pump (29) is fixedly installed on the top surface of the cover body (10), a second guide pipe (50) is fixedly connected to the inlet end of the concrete pump (29), one end, far away from the concrete pump (29), of the second guide pipe (50) sequentially penetrates through the outer sides of the cover body (10) and the hollow pipe (51), and one end, far away from the concrete pump (29), of the second guide pipe (50) extends to the bottom end of the hollow pipe (51);

the fixed through-type of top surface of lid (10) installs inlet pipe three (53), the one end that lid (10) were kept away from in inlet pipe three (53) is external to have water supply installation.

4. The coal mine cemented filling device for distributing coal gangue aggregates as claimed in claim 3, wherein the driving assembly comprises a fixed seat (20) fixedly mounted on the top surface of the bottom plate (16) and a driven pulley (14) fixedly mounted at the bottom end position of the periphery of the storage barrel (40), a first motor (21) is fixedly mounted in the fixed seat (20), a driving pulley (19) is fixedly mounted at the output shaft end of the first motor (21), and a transmission belt (18) is connected between the driving pulley (19) and the driven pulley (14);

the top surface of the driven belt wheel (14) is provided with a plurality of limiting holes (49) matched with the connecting assembly for use, and the limiting holes (49) are arranged on the top surface of the driven belt wheel (14) in a circumferential array mode relative to the axis of the storage barrel (40).

5. The coal mine cemented filling device for distributing the coal gangue aggregates according to claim 4, wherein the material pipe length adjusting assembly comprises a sleeve (13) sleeved on the periphery of the storage barrel (40), the sleeve (13) is positioned above the driven belt wheel (14), the top end of the sleeve (13) is higher than the top end of the storage barrel (40), and the top end of the sleeve (13) is positioned below the cover body (10);

a surrounding groove (41) is formed in the periphery of the sleeve (13), a supporting ring (42) located below the surrounding groove (41) is fixedly connected to the periphery of the sleeve (13), a thread (43) located below the supporting ring (42) is arranged on the periphery of the sleeve (13), and a limiting ring (46) fixedly mounted on the periphery of the sleeve (13) is arranged below the thread (43);

the peripheral upper end position of sleeve (13) is provided with filling tube two (11), the one end that sleeve (13) were kept away from in filling tube two (11) is connected with conveying pipeline (12), and the part that conveying pipeline (12) kept away from filling tube two (11) encircles the card through encircleing groove (41) and establishes in the periphery of sleeve (13).

6. The coal mine cemented filling apparatus with arrangement of coal gangue aggregates as defined in claim 5, wherein the connecting assembly comprises a lifting ring (44) threadedly mounted on the outer periphery of the sleeve (13) through a screw thread (43), and a plurality of handles (45) for rotating the lifting ring (44) are fixedly connected to the outer periphery of the lifting ring (44);

the bottom surface of lifting ring (44) is rotated and is connected with the cover and establish at sleeve (13) outlying ring (48), fixedly connected with a plurality of inserted bars (47) that equal with a plurality of spacing hole (49) quantity on the bottom surface of ring (48), inserted bar (47) slide and run through spacing ring (46), and the one end that ring (48) were kept away from in a plurality of inserted bars (47) slides respectively and inserts and establish in a plurality of spacing hole (49).

7. The coal mine cemented filling device for arranging the coal gangue aggregates according to claim 1, characterized in that one end of the bottom plate (16) is fixedly connected with two extension rods (22), one end of each extension rod (22) far away from the bottom plate (16) is fixedly provided with a connecting seat (23), a connecting block (25) is rotatably arranged in each connecting seat (23), and one ends of the two connecting blocks (25) far away from the connecting seats (23) are fixedly connected with the leakage-proof plate (1) together;

two ends of the first cylinder (24) are respectively hinged with the leakage-proof plate (1) and the bottom plate (16).

8. The coal mine cemented filling device for arranging the coal gangue aggregates according to claim 1, characterized in that a first extending block (30) is fixedly connected to the inner side surface of the leakage preventing plate (1) at a position close to the bottom end thereof, and two sliding grooves (26) are symmetrically formed at two side positions on the inner side surface of the leakage preventing plate (1);

two slide rails (27) are installed to both sides position symmetry on expansion plate (2) lateral surface, two slide rail (27) slidable mounting respectively is two in spout (26), the medial surface bottom position fixedly connected with of expansion plate (2) stretch out piece two (32), stretch out piece two (32) with stretch out fixedly connected with cylinder two (31) between piece (30).

9. The coal mine cemented filling device for distributing coal gangue aggregates according to claim 3, characterized in that the discharging mechanism (3) comprises a distributing cylinder (33) fixedly installed at the top end of the outer side surface of the expansion plate (2) and a second motor (28) fixedly installed on the inner side surface of the expansion plate (2), a plurality of discharging pipes (34) distributed in an array manner along the length direction of the distributing cylinder (33) are fixedly connected to the outer side surface of the distributing cylinder (33), a first feeding pipe (4) is fixedly connected to one end position on the inner side surface of the distributing cylinder (33), and the first guide pipe (5) is fixedly connected between one end of the first feeding pipe (4) far away from the distributing cylinder (33) and the discharging end of the concrete pump (29);

a rotating shaft (37) is rotatably installed between two ends of the interior of the material separating barrel (33), a helical blade (36) is fixedly installed on the periphery of the rotating shaft (37), one end, close to the second motor (28), of the rotating shaft (37) rotatably penetrates through the material separating barrel (33), and a first bevel gear (38) is fixedly installed at one end, close to the second motor (28), of the rotating shaft (37);

an output shaft of the second motor (28) rotates to penetrate through the telescopic plate (2), and a second bevel gear (39) meshed with the first bevel gear (38) is fixedly mounted at the shaft end of the output shaft of the second motor (28);

and a protective cover (35) wrapped on the peripheries of the bevel gear I (38) and the bevel gear II (39) is fixedly arranged between one end of the material separating barrel (33) close to the motor II (28) and the outer side surface of the expansion plate (2).

10. A filling method of a coal mine cemented filling device for distributing coal gangue aggregates is characterized by comprising the following steps:

s1: moving the device to a working position;

s2: starting the first air cylinder (24) to drive the leakage-proof plate (1) to rotate by taking the connecting seat (23) as an axis, so that the bottom end of the leakage-proof plate (1) is in extrusion contact with the ground of the goaf; starting a second cylinder (31) to drive the expansion plate (2) to ascend, so that the expansion plate (2) and the leakage-proof plate (1) are cut off in the goaf to form a prefill zone;

s3: the conveying pipe (12) conveys the filling materials on the ground into the storage barrel (40), the concrete pump (29) conveys the filling materials in the storage barrel (40) into the discharging mechanism (3), and the discharging mechanism (3) fills the filling materials into the pre-filling area;

s4: after filling, the moving device forms a row of pre-filling areas, and during the moving process, the material pipe length adjusting assembly can change the working length of the material conveying pipe (12) in a winding mode of the material conveying pipe (12), so that the material conveying pipe (12) is adaptive to the working position of the device.