CN114017110A - Gangue throwing machine for mine backfilling and use method thereof - Google Patents

Gangue throwing machine for mine backfilling and use method thereof Download PDF

Info

Publication number
CN114017110A
CN114017110A CN202111373808.0A CN202111373808A CN114017110A CN 114017110 A CN114017110 A CN 114017110A CN 202111373808 A CN202111373808 A CN 202111373808A CN 114017110 A CN114017110 A CN 114017110A
Authority
CN
China
Prior art keywords
belt conveyor
main belt
throwing
backfilling
gangue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111373808.0A
Other languages
Chinese (zh)
Inventor
罗华君
方伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Jinhengli Energy Technology Co ltd
Original Assignee
Shandong Jinhengli Energy Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Jinhengli Energy Technology Co ltd filed Critical Shandong Jinhengli Energy Technology Co ltd
Priority to CN202111373808.0A priority Critical patent/CN114017110A/en
Publication of CN114017110A publication Critical patent/CN114017110A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/06Filling-up mechanically
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00Transport specially adapted to underground conditions

Abstract

The invention relates to a gangue dumping machine for mine backfilling and a using method thereof, which comprises a travelling mechanism, a main belt conveyor and an end belt conveyor, wherein the main belt conveyor is obliquely arranged and hinged with the travelling mechanism, the lower end of the main belt conveyor is positioned behind the travelling mechanism, the upper end of the main belt conveyor is positioned in front of the travelling mechanism, one end of the end belt conveyor is hinged with the upper end of the main belt conveyor, the gangue dumping machine also comprises a pitching driving device for driving the main belt conveyor to pitch up and down and an end driving device for driving the end belt conveyor to swing up and down relative to the main belt conveyor, high-speed dumping is realized through the end belt conveyor hinged with the upper end of the main belt conveyor, the dumping speed can be adjusted, different dumping angles can be provided through adjusting the angle of the end belt conveyor, and the backfilling of the top of a roadway is facilitated, the invention has small occupied space and good backfilling effect, and can be suitable for backfilling operation of various mine holes.

Description

Gangue throwing machine for mine backfilling and use method thereof
Technical Field
The invention relates to the technical field of gangue throwing machines, in particular to a gangue throwing machine for mine backfilling and a using method thereof.
Background
In the existing prevention and control measures for mining subsidence, the gangue backfilling technology can control ground subsidence and reduce the well-raising rate of gangue, so that the gangue backfilling technology is widely accepted. The waste rock backfilling technology is characterized in that waste rock generated underground is filled into a dug coal roadway to replace a coal pillar, so that the waste rock does not rise into the well, does not occupy cultivated land, protects the environment, and coal resources which cannot be mined by a conventional method are mined out, so that the resource output rate is improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the gangue throwing machine for mine backfilling, which has small occupied space and good backfilling effect, and the use method thereof.
The invention is realized through the following technical scheme, and provides a gangue dumping machine for mine backfilling, which comprises a travelling mechanism, a main belt conveyor and an end belt conveyor, wherein the main belt conveyor is obliquely arranged and hinged with the travelling mechanism, the lower end of the main belt conveyor is positioned behind the travelling mechanism, the upper end of the main belt conveyor is positioned in front of the travelling mechanism, one end of the end belt conveyor is hinged with the upper end of the main belt conveyor, and the gangue dumping machine further comprises a pitching driving device for driving the main belt conveyor to pitch up and down and an end driving device for driving the end belt conveyor to swing up and down relative to the main belt conveyor.
Running gear drives the gangue machine of throwing in this scheme and removes to the backfill position, pour the waste rock into the lower extreme of main band conveyer, upward carry through main band conveyer and shed the backfill, swing to main band conveyer the place ahead through tip drive arrangement drive tip band conveyer, make the material of main band conveyer upper end shed to tip band conveyer on, realize high-speed the shedding through tip band conveyer, can provide different shedding angles through the angle of adjusting tip band conveyer, the tunnel top of being convenient for is backfilled.
The lower end of the main belt conveyor is located behind the travelling mechanism, and the upper end of the main belt conveyor is located in front of the travelling mechanism, so that the gravity center of the main belt conveyor is supported on the travelling mechanism, the front and the back overturning is prevented, meanwhile, the height of the lower end of the main belt conveyor is convenient to reduce, and the materials are convenient to load.
When the end belt conveyor is not used, the end driving device drives the end belt conveyor to swing, so that the end belt conveyor is folded below the main belt conveyor, and the occupied space of the gangue throwing machine is reduced.
When the end part belt conveyor is used specifically, the end part belt conveyor can be upwards arranged to improve the throwing height, and the end part belt conveyor can also be horizontally inserted into the top of a backfill roadway to improve the top backfill effect.
The main belt conveyor can be independently used for throwing and backfilling in the using process, and can also be matched with the end driving device for throwing and backfilling, and the specific using state is preferably used according to factors such as roadway width, height and backfilling position.
Preferably, the walking mechanism is provided with a rotating disc, the lower end of the main belt conveyor is hinged to the rotating disc, and the walking mechanism further comprises a rotary driving device for driving the rotating disc to rotate. The rotary driving device drives the rotary disc to rotate, so that the left and right deflection can be realized for throwing.
Preferably, the hinge shaft of the main belt conveyor and the rotating disc is positioned at the rear end of the rotating disc. According to the scheme, the main belt conveyor and the hinged shaft of the rotating disc are located at the rear end of the rotating disc, so that the front and rear sizes of the throwing gangue machine are reduced, and meanwhile, the material loading at the lower end of the main belt conveyor is facilitated.
As an optimization, the walking mechanism is provided with a bottom support frame, the rotating disc is arranged on the bottom support frame, the bottom support frame is hinged with the walking mechanism, and the walking mechanism further comprises a support frame driving device for driving the bottom support frame to swing up and down. After the backfilling is finished, the main belt conveyor can descend and is convenient to walk, and the walking mechanism is arranged in the middle of the main belt conveyor, so that the front end of the main belt conveyor is difficult to be lowered to the required height in the prior art.
Meanwhile, the bottom supporting frame is arranged, so that the pitching angle of the main belt conveyor can be increased, and the device is suitable for more extensive roadways.
Preferably, the bottom support frame is arranged behind the travelling mechanism, and the front end of the bottom support frame is hinged with the rear end of the travelling mechanism. The front end of bottom support frame is articulated with running gear's rear end in this scheme to can reduce the mounting height of whole main belt conveyor, reduce the total height of throwing the cash machine.
Preferably, the conveying speed of the end belt conveyor is greater than the conveying speed of the main belt conveyor. The conveying speed of tip belt conveyor is greater than the conveying speed of main belt conveyor in this scheme to improve and shed the distance, realization that can be more nimble is shed and is backfilled.
Preferably, the articulated shaft of the end belt conveyor and the main belt conveyor is positioned below the upper end of the main belt conveyor. In the scheme, the articulated shaft of the end belt conveyor and the main belt conveyor is positioned below the upper end of the main belt conveyor, so that the end belt conveyor can be conveniently folded below the main belt conveyor.
Preferably, the end belt conveyor comprises an end swing frame hinged with the main belt conveyor, belt driving rollers arranged at two ends of the end swing frame and an end belt bypassing the two belt driving rollers, and the belt driving roller close to one end of the main belt conveyor is arranged below the upper end of the main belt conveyor. The belt driving roller close to one end of the main belt conveyor is located below the upper end of the main belt conveyor, so that materials on the main belt conveyor can enter the end portion belt conveyor conveniently.
Preferably, the end belt conveyor further comprises a belt supporting roller supported below the end belt, the belt supporting roller being a horizontal straight roller. The belt supporting roller in this scheme is the straight roller of horizontally to the transport face that makes the tip belt is the plane, and belt conveyor among the prior art is generally sunken for the middle part, prevents that the material edgewise from falling out, but tip belt conveyor length in this scheme need not be very long, consequently sets up the transport speed that planar transport face can be convenient for improve the tip belt, improves the life of tip belt.
A use method of a gangue dumping machine for mine backfilling comprises the following steps:
a. the waste rock throwing machine is driven to move to a backfilling position through the traveling mechanism, waste rocks are poured into the lower end of the main belt conveyor, and the waste rocks are conveyed upwards through the main belt conveyor to be thrown and backfilled;
b. the main belt conveyor is driven to pitch up and down through the pitch driving device, so that different throwing heights are realized;
c. the rotating disc is driven to rotate by the rotary driving device, so that the left and right deflection is realized for throwing;
d. the end part driving device drives the end part belt conveyor to swing to the front of the main belt conveyor, so that materials at the upper end of the main belt conveyor are thrown onto the end part belt conveyor, high-speed throwing is realized through the end part belt conveyor, the throwing distance can be adjusted by adjusting the throwing speed of the end part belt conveyor, different throwing angles can be provided by adjusting the angle of the end part belt conveyor, and the top of a roadway can be conveniently backfilled;
e. in the throwing and backfilling process, the gangue throwing machine is driven by the traveling mechanism to retreat and travel according to the backfilling progress;
f. after backfilling is finished, the end part driving device drives the end part belt conveyor to swing, so that the end part belt conveyor is folded below the main belt conveyor, the supporting frame driving device drives the bottom supporting frame to swing upwards, the height of the front end of the main belt conveyor is reduced, the occupied space of the waste rock throwing machine is reduced, and the waste rock throwing machine can conveniently walk in a roadway.
The invention has the beneficial effects that: according to the gangue throwing machine for mine backfilling and the using method thereof, the end belt conveyor is hinged to the upper end of the main belt conveyor, so that materials at the upper end of the main belt conveyor are thrown onto the end belt conveyor, high-speed throwing is realized through the end belt conveyor, the throwing distance can be adjusted by adjusting the throwing speed of the end belt conveyor, different throwing angles can be provided by adjusting the angle of the end belt conveyor, and the gangue throwing machine is convenient to backfill the top of a roadway.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a front view of the end belt conveyor of the present invention in a retracted state;
FIG. 4 is a top view of the present invention;
FIG. 5 is a cross-sectional view taken along plane A-A of FIG. 4 in accordance with the present invention;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4 in accordance with the present invention;
FIG. 7 is a top view of the present invention without the main belt conveyor and the end belt conveyor;
shown in the figure:
1. the device comprises a traveling mechanism, 2, a main belt conveyor, 3, an end belt conveyor, 4, a bottom support frame, 5, a support frame oil cylinder, 6, a rotating disc, 7, a rotating disc oil cylinder, 8, a slewing bearing, 9, a pitching oil cylinder, 31, an end swing frame, 32, a belt driving roller, 33, an end belt, 34, a rotating oil cylinder, 35 and a belt supporting roller.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in fig. 1 to 7, the gangue dumping machine for mine backfilling of the present invention includes a traveling mechanism 1, a main belt conveyor 2 and an end belt conveyor 3, where the traveling mechanism 1 is a crawler traveling mechanism, and can adapt to complex road conditions in a mine tunnel, and is convenient to advance, retreat and turn, and the upper end described in this application is not necessarily the uppermost position, but also includes a position close to the upper end.
The main belt conveyor 2 is obliquely arranged and hinged to the traveling mechanism 1, the main belt conveyor 2 upwards throws materials, the front of the throwing direction is the front of the throwing gangue machine, the lower end of the main belt conveyor 2 is located behind the traveling mechanism 1, the upper end of the main belt conveyor 2 is located in the front of the traveling mechanism 1, and a hinged shaft of the main belt conveyor 2 is transversely arranged, so that the main belt conveyor 2 can be vertically pitched.
The walking mechanism 1 is provided with a rotating disk 6, the lower end of the main belt conveyor 2 is hinged to the rotating disk 6, a hinged shaft of the main belt conveyor 2 and the rotating disk 6 is located at the rear end of the rotating disk 6, and the walking mechanism further comprises a rotary driving device for driving the rotating disk 6 to rotate.
The bottom support frame 4 is installed on the traveling mechanism 1, the rotating disc 6 is installed on the bottom support frame 4, the bottom support frame 4 is hinged to the traveling mechanism 1, the bottom support frame 4 is arranged behind the traveling mechanism 1, the bottom support frame 4 is transversely arranged with a hinged shaft of the traveling mechanism 1, the front end of the bottom support frame 4 is hinged to the rear end of the traveling mechanism 1, the bottom support frame 4 is as low as possible in height, and the height of the lower end of the main belt conveyor 2 is convenient to reduce.
The support frame driving device is used for driving the bottom support frame 4 to swing up and down, and comprises a support frame oil cylinder 5, one end of the support frame oil cylinder 5 is hinged to the walking mechanism 1, the other end of the support frame oil cylinder is hinged to the bottom support frame 4, and the bottom support frame 4 swings up and down through the stretching of the support frame oil cylinder 5.
The lower part of the rotating disk 6 is installed on the upper end face of the bottom support frame 4 through a slewing bearing 8, the rotating drive device drives the rotating disk 6 to rotate and comprises two rotating disk oil cylinders 7, one ends of the rotating disk oil cylinders are hinged to the bottom support frame 4, the other ends of the rotating disk oil cylinders are hinged to the rotating disk 6, the two rotating disk oil cylinders 7 are respectively connected to two sides of the center of the rotating disk 6, and therefore the two rotating disk oil cylinders 7 are opposite in telescopic state during rotation.
The pitching driving device comprises a pitching oil cylinder 9, one end of the pitching oil cylinder 9 is hinged with the rotating disc, and the other end of the pitching oil cylinder 9 is hinged with the main belt conveyor 2.
Based on the structure, the lower end of the main belt conveyor 2 is located at the rearmost part of the whole gangue throwing machine, and the rest structures are located in the range covered by the main belt conveyor 2, so that the occupied space of the whole gangue throwing machine can be reduced.
The length of the end belt conveyor 3 is smaller than that of the main belt conveyor 2, one end of the end belt conveyor 3 is hinged to the upper end of the main belt conveyor 2, a hinge shaft is transversely arranged to enable the end belt conveyor 3 to rotate around the hinge shaft, and the hinge shaft of the end belt conveyor 3 and the hinge shaft of the main belt conveyor 2 are located below the upper end of the main belt conveyor 2, so that the state shown in fig. 3 is conveniently realized, and the end belt conveyor 3 is folded below the main belt conveyor 2.
The end part driving device is used for driving the end part belt conveyor 3 to swing up and down relative to the main belt conveyor 2, and comprises a rotary oil cylinder 34 installed on a hinged shaft, the rotary oil cylinder is a standard outsourcing rotary oil cylinder, and the rotation of the rotary oil cylinder is realized through hydraulic pressure, so that the rotation of the end part belt conveyor 3 is realized.
The end belt conveyor 3 includes an end swing frame 31 hinged to the main belt conveyor 2, belt driving rollers 32 installed at both ends of the end swing frame 31, and an end belt 33 passing around the two belt driving rollers 32, and the belt driving roller 32 near one end of the main belt conveyor 2 is located below the upper end of the main belt conveyor 2.
The conveying speed of the end belt conveyor 3 is greater than the conveying speed of the main belt conveyor 2.
The end belt conveyor 3 further comprises a belt support roller 35 supported below the end belt 33, the belt support roller 35 being a horizontal straight roller.
A use method of a gangue dumping machine for mine backfilling comprises the following steps:
the waste rock throwing machine is driven by the traveling mechanism 1 to move to a backfilling position, waste rocks are poured into the lower end of the main belt conveyor 2, and the waste rocks are conveyed upwards by the main belt conveyor 2 to be thrown and backfilled.
The main belt conveyor 2 is driven to pitch up and down through the pitch driving device, so that different throwing heights are realized.
The rotating disc 6 is driven to rotate by the rotary driving device, so that the left and right deflection is realized for throwing.
Swing to main belt conveyor 2 the place ahead through tip drive arrangement drive tip belt conveyor 3, make the material of 2 upper ends of main belt conveyor shed to tip belt conveyor 3 on, realize high-speed shedding through tip belt conveyor 3, can adjust the shedding distance through the shedding speed of adjusting tip belt conveyor, can provide different shedding angles through the angle of adjusting tip belt conveyor 3, the tunnel top of being convenient for is backfilled.
In the process of throwing and backfilling, the gangue throwing machine is driven by the traveling mechanism 1 to retreat and travel according to the backfilling progress.
After backfilling is finished, the end part driving device drives the end part belt conveyor 3 to swing, so that the end part belt conveyor 3 is folded below the main belt conveyor 2, the support frame driving device drives the bottom support frame 4 to swing upwards, and the height of the front end of the main belt conveyor 2 is reduced, so that the occupied space of the gangue throwing machine is reduced, and the gangue throwing machine can conveniently walk in a roadway.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.

Claims (10)

1. A gangue throwing machine for mine backfilling and a use method thereof are characterized in that: the device comprises a traveling mechanism (1), a main belt conveyor (2) and an end belt conveyor (3), wherein the main belt conveyor (2) is obliquely arranged and hinged to the traveling mechanism (1), the lower end of the main belt conveyor (2) is located behind the traveling mechanism (1), the upper end of the main belt conveyor (2) is located in front of the traveling mechanism (1), one end of the end belt conveyor (3) is hinged to the upper end of the main belt conveyor (2), and the device further comprises a pitching driving device for driving the main belt conveyor (2) to pitch up and down and an end driving device for driving the end belt conveyor (3) to swing up and down relative to the main belt conveyor (2).
2. The gangue dumping machine for mine backfilling according to claim 1, wherein: the walking mechanism (1) is provided with a rotating disk (6), the lower end of the main belt conveyor (2) is hinged to the rotating disk (6), and the walking mechanism further comprises a rotary driving device for driving the rotating disk (6) to rotate.
3. The gangue dumping machine for mine backfilling according to claim 2, wherein: the hinge shaft of the main belt conveyor (2) and the rotating disc (6) is positioned at the rear end of the rotating disc (6).
4. The gangue dumping machine for mine backfilling according to claim 2, wherein: the rotary table is characterized in that a bottom support frame (4) is arranged on the traveling mechanism (1), the rotary table (6) is arranged on the bottom support frame (4), the bottom support frame (4) is hinged to the traveling mechanism (1), and the rotary table further comprises a support frame driving device for driving the bottom support frame (4) to swing up and down.
5. The gangue dumping machine for mine backfilling according to claim 4, wherein: the bottom support frame (4) is arranged behind the traveling mechanism (1), and the front end of the bottom support frame (4) is hinged with the rear end of the traveling mechanism (1).
6. The gangue dumping machine for mine backfilling according to any one of claims 1-5, wherein: the conveying speed of the end belt conveyor (3) is higher than that of the main belt conveyor (2).
7. The gangue dumping machine for mine backfilling according to any one of claims 1-5, wherein: and the articulated shaft of the end belt conveyor (3) and the main belt conveyor (2) is positioned below the upper end of the main belt conveyor (2).
8. The gangue dumping machine for mine backfilling according to any one of claims 1-5, wherein: the end belt conveyor (3) comprises an end swing frame (31) hinged with the main belt conveyor (2), belt driving rollers (32) installed at two ends of the end swing frame (31) and end belts (33) bypassing the two belt driving rollers (32), and the belt driving rollers (32) close to one end of the main belt conveyor (2) are located below the upper end of the main belt conveyor (2).
9. The gangue dumping machine for mine backfilling according to claim 8, wherein: the end belt conveyor (3) further comprises a belt supporting roller (35) supported below the end belt (33), and the belt supporting roller (35) is a horizontal straight roller.
10. The use method of the gangue dumping machine for mine backfilling according to any one of claims 4-5, characterized by comprising the following steps:
a. the waste rock throwing machine is driven to move to a backfilling position through the traveling mechanism (1), waste rock is poured into the lower end of the main belt conveyor (2), and is conveyed upwards through the main belt conveyor (2) to be thrown and backfilled;
b. the main belt conveyor (2) is driven to pitch up and down through the pitch driving device, so that different throwing heights are realized;
c. the rotating disc (6) is driven to rotate by the rotary driving device, so that the left and right deflection is realized for throwing;
d. the end part driving device drives the end part belt conveyor (3) to swing to the front of the main belt conveyor (2), so that materials at the upper end of the main belt conveyor (2) are thrown onto the end part belt conveyor (3), high-speed throwing is realized through the end part belt conveyor (3), the throwing distance can be adjusted by adjusting the throwing speed of the end part belt conveyor, different throwing angles can be provided by adjusting the angle of the end part belt conveyor (3), and the top of a roadway is convenient to backfill;
e. in the process of throwing and backfilling, the gangue throwing machine is driven to retreat and walk according to the backfilling progress through the walking mechanism (1);
f. after backfilling is finished, the end part driving device drives the end part belt conveyor (3) to swing, so that the end part belt conveyor (3) is folded below the main belt conveyor (2), the support frame driving device drives the bottom support frame (4) to swing upwards, the height of the front end of the main belt conveyor (2) is reduced, the occupied space of the gangue throwing machine is reduced, and the gangue throwing machine can conveniently walk in a roadway.
CN202111373808.0A 2021-11-19 2021-11-19 Gangue throwing machine for mine backfilling and use method thereof Pending CN114017110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111373808.0A CN114017110A (en) 2021-11-19 2021-11-19 Gangue throwing machine for mine backfilling and use method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111373808.0A CN114017110A (en) 2021-11-19 2021-11-19 Gangue throwing machine for mine backfilling and use method thereof

Publications (1)

Publication Number Publication Date
CN114017110A true CN114017110A (en) 2022-02-08

Family

ID=80065522

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111373808.0A Pending CN114017110A (en) 2021-11-19 2021-11-19 Gangue throwing machine for mine backfilling and use method thereof

Country Status (1)

Country Link
CN (1) CN114017110A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116176678A (en) * 2023-04-24 2023-05-30 河北省高速公路延崇管理中心 Tunnel safety construction conveyer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116176678A (en) * 2023-04-24 2023-05-30 河北省高速公路延崇管理中心 Tunnel safety construction conveyer
CN116176678B (en) * 2023-04-24 2023-07-04 河北省高速公路延崇管理中心 Tunnel safety construction conveyer

Similar Documents

Publication Publication Date Title
US4345680A (en) Material transfer apparatus
CN109896232B (en) Vertical shaft continuous tunneling lifting system and lifting method thereof
CN108946043A (en) A kind of angle adjustable automatic moving type drag conveyor
CN112412450A (en) Drilling, loading and anchoring integrated machine
US4749326A (en) Continuous loading apparatus
CN114017110A (en) Gangue throwing machine for mine backfilling and use method thereof
CN207377603U (en) Caterpillar track travelling leather belt reshipment machine
CN216342314U (en) Mining retractable gangue throwing machine
CN216342313U (en) Gangue throwing machine for mine backfilling
CN112240222A (en) Retractable colliery is tunnel waste filling machine for pit
US10647521B2 (en) Transfer bridge for coarse bulk materials
CN209780954U (en) Coal face end triangular space filling device
CN204849883U (en) Three -dimensional excavation system
CN210948783U (en) Movable type roadway gangue filling system
CN105293090B (en) Mining telescopic boom dumping plough
CN216944923U (en) Belt type conveying device for gangue throwing machine
CN211737141U (en) Shield cutter head suitable for layering of soft and hard stratums
US4047761A (en) Mining machine
CN208790546U (en) A kind of angle adjustable automatic moving type drag conveyor
CN220505112U (en) Throw high waste rock filling machine
CN106120883A (en) Chain type depth adjustable digging machine system
CN206070609U (en) Chain type depth adjustable bucket component
CN201884030U (en) Reclaiming conveyer capable of turning at corner
CN110566268A (en) Waste rock transshipment, throwing, tamping all-in-one
CN206070610U (en) Chain type depth adjustable digging machine system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination