CN110878706A - Coal mine rapid tunneling gangue transportation system - Google Patents
Coal mine rapid tunneling gangue transportation system Download PDFInfo
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- CN110878706A CN110878706A CN201911292663.4A CN201911292663A CN110878706A CN 110878706 A CN110878706 A CN 110878706A CN 201911292663 A CN201911292663 A CN 201911292663A CN 110878706 A CN110878706 A CN 110878706A
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- gangue
- storage bin
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
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Abstract
The invention discloses a coal mine rapid tunneling gangue transport system which comprises a tunneling machine, an original gangue storage bin, an original transport belt, a coal storage bin, an extended gangue storage bin and an extended transport belt, wherein the tunneling machine is used for operating on a tunneling working face, the original gangue storage bin is used for storing a preset amount of gangue, the original transport belt is used for transporting the gangue excavated by the tunneling machine to the original gangue storage bin, the coal storage bin is used for storing coal ores, the extended gangue storage bin is arranged in the coal storage bin and is used for temporarily storing the preset amount of gangue, and the extended transport belt is used for transporting the gangue excavated by the tunneling machine to the extended gangue storage bin. The invention can simultaneously start the original conveying belt and the extended conveying belt to convey the waste rocks in two ways, combines the original waste rock discharge mode with the temporary waste rock discharge mode, and simultaneously utilizes the extended waste rock storage bins arranged in the original waste rock storage bin and the coal storage bin to temporarily store and buffer the conveyed waste rocks, thereby quickly cleaning and transporting the waste rocks accumulated on the tunneling working face, realizing the parallel operation of tunneling and waste rock discharge, achieving the effect of concentrated and continuous waste rock discharge, accelerating the waste rock conveying speed and obviously improving the tunneling speed of a tunnel.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a coal mine rapid tunneling gangue transport system.
Background
At present, the loading and transportation of the waste rock are the most heavy and the most time consuming when the coal mine rock roadway is tunneled in China, and generally account for 35-50% of tunneling cycle time. The process has many links, manpower and low efficiency, and the probability of transportation accidents during tunneling is greatly increased, thereby seriously restricting the processes of centralized production, mechanized mining and large-scale mine.
In the preparation process of a gas mine mining area, due to the requirement of a gas control project, more rock roadways are designed and built, and a gas control pattern of 'one high pumping roadway, two low pumping roadways (one middle pumping roadway, one machine pumping roadway) and three coal roadways (machine, medium coal and air roadways)' is adopted, namely, a three-dimensional control technical route of using a low pumping roadway cross-layer drilling to control strip gas to shield coal roadway safe tunneling, and using the dense drilling of a coal seam to pre-pump back mining area gas, and using a high-position roadway to extract goaf and upper corner gas. A plurality of rock roadways are arranged on each mining face for treatment, so that the driving speed of a gas treatment project directly influences the treatment and the operation of a stoping roadway, and is a main factor influencing the mining succession balance and restricting the safe and efficient development of the mine.
In the design of a coal mining area, in order to ensure the economical efficiency of roadway construction, and because the waste rock storage bin of the mining area is mainly used for digging in and out waste rock in the preparation stage of the mining area, and the use frequency is low during coal discharge in the mining stage, the common capacity of the waste rock storage bin of the mining area is small, and a large amount of waste rock is discharged in a short time on a rock roadway driving working face. At the moment, a large amount of gangue which is not transported before can be accumulated on the tunneling working face, the gangue storage bin is full of the gangue for containing the gangue, most of the residual gangue is difficult to clean quickly, the tunneling working face has to be stopped to wait for the transportation and the cleaning of the residual gangue, the tunneling operation cannot be stably and continuously carried out, and the tunneling efficiency is low. In addition, in the prior art, equipment such as a transport vehicle is generally used for transporting the gangue on the tunneling working face to a gangue storage bin for storage, the transport capacity is limited, the transport efficiency is low, the problem of difficult gangue discharge due to the fact that the transport line is easily blocked is solved, and the construction speed of each rock roadway is limited.
Therefore, how to improve the gangue transportation and cleaning efficiency, avoid the accumulation of a large amount of gangue on the tunneling working face and realize the continuous operation of tunneling and gangue discharge is a technical problem faced by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a coal mine rapid tunneling gangue transport system which can improve the gangue transport and cleaning efficiency, avoid the accumulation of a large amount of gangue on a tunneling working face and realize the continuous operation of tunneling and gangue discharge.
In order to solve the technical problems, the invention provides a coal mine rapid tunneling gangue transport system which comprises a tunneling machine, an original gangue storage bin, an original transport belt, a coal storage bin, an extended gangue storage bin and an extended transport belt, wherein the tunneling machine is used for operating on a tunneling working face, the original gangue storage bin is used for storing a preset amount of gangue, the original transport belt is used for transporting the gangue excavated by the tunneling machine to the original gangue storage bin, the coal storage bin is used for storing coal ores, the extended gangue storage bin is arranged in the coal storage bin and is used for temporarily storing the preset amount of gangue, and the extended transport belt is used for transporting the gangue excavated by the tunneling machine to the extended gangue storage bin.
Preferably, the system further comprises a plurality of transportation devices which are reciprocally moved between the heading machine and the head end of the original transportation belt and between the heading machine and the head end of the extended transportation belt and are used for respectively transporting quantitative gangue to the original transportation belt and the extended transportation belt.
Preferably, the mine car is used for transporting the gangue in the original gangue storage bin and the expanded gangue storage bin to the outside, and the scraper bucket machine is arranged at the gangue outlet of the original gangue storage bin and the expanded gangue storage bin and used for loading the gangue into each mine car.
Preferably, the gangue inlet of the expansion gangue storage bin is connected with the tail end of the expansion conveying belt, and a plurality of sliding rails which extend to the gangue inlet and are used for sliding loading and unloading gangue are axially arranged on the bin wall of the expansion gangue storage bin.
Preferably, the original conveyor belt and the expanded conveyor belt are both belt conveyors.
Preferably, the installation space of the expanded gangue storage bin accounts for 50% -100% of the installation space of the coal storage bin.
The invention provides a coal mine rapid tunneling gangue transport system which mainly comprises a tunneling machine, an original gangue storage bin, an original transport belt, a coal storage bin, an expanded gangue storage bin and an expanded transport belt. The heading machine is mainly used for working at a heading face, realizing longitudinal feeding while crushing the rock face of a rock roadway and discharging gangue out of the rock roadway. The original waste rock storage bin is mainly arranged in a mining area and is mainly used for storing preset amount of waste rock. The original transportation is to be laid between the development machine and the original waste rock storage bin, and is mainly used for transporting part of waste rocks excavated by the development machine to the original waste rock storage bin for storage. The coal storage bin is mainly used for storing coal ores, and an extended gangue storage bin is arranged in the coal storage bin and can be used for temporarily storing a preset amount of gangue. The extension conveyer belt is laid between the development machine and the extension waste rock storage bin and is mainly used for conveying the residual waste rock excavated by the development machine to the extension waste rock storage bin for temporary storage. Therefore, in the coal mine rapid tunneling gangue transport system provided by the invention, the original transport belt and the expanded transport belt can be started to transport gangue in two ways simultaneously in the operation process of the tunneling machine, the original gangue discharge mode and the temporary gangue discharge mode are combined, and the transported gangue is temporarily stored and buffered by utilizing the expanded gangue storage bins arranged in the original gangue storage bin and the coal storage bin, so that the gangue accumulated on a tunneling working surface can be rapidly cleaned and transported away, a sufficient field is reserved for the next construction, the transport line is more smooth, the problem of difficult gangue discharge of the transport line in the tunneling process is favorably solved, the parallel operation of tunneling and gangue discharge is realized, the concentrated continuous gangue discharge effect is achieved, the gangue transport speed is accelerated, and the tunneling roadway speed is obviously improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of a gangue transportation process according to an embodiment of the present invention.
Fig. 2 is a specific structural schematic diagram of the expanded gangue storage bin shown in fig. 1.
Fig. 3 is a schematic sectional structure view of a gangue inlet of the expanded gangue storage bin shown in fig. 2.
Wherein, in fig. 1-3:
the system comprises a development machine-1, an original waste rock storage bin-2, an original conveying belt-3, a coal storage bin-4, an expanded waste rock storage bin-5, an expanded conveying belt-6, conveying equipment-7, a mine car-8, a scraper bucket machine-9 and a slide rail-10.
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.
Referring to fig. 1, fig. 1 is a flow chart of gangue transportation according to an embodiment of the present invention.
In a specific embodiment provided by the invention, the coal mine rapid tunneling gangue transport system mainly comprises a tunneling machine 1, an original gangue storage bin 2, an original transport belt 3, a coal storage bin 4, an extended gangue storage bin 5 and an extended transport belt 6.
The heading machine 1 is mainly used for working at a heading face, realizing longitudinal feeding while crushing a rock face of a rock roadway, and discharging gangue out of the rock roadway. The heading machine 1 mainly refers to a tbm (tunnel Boring machine) and mainly comprises a travelling mechanism, a working mechanism, a loading mechanism and a transshipping mechanism, wherein a cutting head in the working mechanism continuously crushes rocks and transports the crushed rocks along with the forward propulsion of the travelling mechanism. In the coal mining process, the development machine 1 is mainly used for discharging coal gangue (called gangue for short) mixed in coal ore to a rock roadway.
The original waste rock storage bin 2 is mainly arranged in a mining area and used for storing a preset amount of waste rock. The original transportation is to be paved between the development machine 1 and the original waste rock storage bin 2, and is mainly used for transporting part of waste rocks excavated by the development machine 1 to the original waste rock storage bin 2 for storage. Generally, the original waste rock storage bin 2 is arranged in a mining area, and is mainly used for digging in and out waste rock in the preparation stage of the mining area, and the use frequency is low during coal discharge in the mining stage, so that the capacity of the original waste rock storage bin 2 is small, and only part of waste rock can be stored when the heading machine 1 works at a high speed.
The coal storage bin 4 is mainly used for storing coal ores, but an extended gangue storage bin 5 is arranged in the coal storage bin 4 and can be used for temporarily storing a preset amount of gangue. Because the capacity of the coal storage bin 4 is generally larger, the capacity of the expanded gangue storage bin 5 is generally far larger than that of the original gangue storage bin 2, and a large amount of gangue can be temporarily stored. The extended conveyer belt 6 is laid between the development machine 1 and the extended waste rock storage bin 5 and is mainly used for conveying residual waste rocks excavated by the development machine 1 to the extended waste rock storage bin 5 for temporary storage. Generally, the original conveyor belt 3 and the expanded conveyor belt 6 may be both belt conveyors, but may also be other conveyors with similar structures, such as idler conveyors and the like.
So, the colliery that this embodiment provided tunnelling waste rock transportation system fast, in entry driving machine 1 operation process, can launch original conveyer belt 3 and extension conveyer belt 6 simultaneously and divide two way transportation waste rock, combine together original discharge of waste rock mode and interim discharge of waste rock mode, and utilize extension storage waste rock storehouse 5 of seting up in original storage waste rock storehouse 2 and the storage coal storehouse 4 simultaneously to the buffering of keeping in of the waste rock of transportation, can clear up the accumulational waste rock of tunnelling working face fast and transport away, reserve sufficient place for next construction, make the transportation circuit more unobstructed, be favorable to solving the difficult problem of play waste rock that the transportation circuit exists among the tunnelling process, and realize tunnelling and discharge of waste rock parallel operation, reach concentrated continuous discharge of waste rock effect, waste rock transportation speed can accelerate the tunnel, tunnelling speed obviously improves.
Considering that a certain distance generally exists between the heading machine 1 and the original conveyor belt 3 and between the heading machine 1 and the extended conveyor belt 6, in order to improve the gangue conveying efficiency as much as possible, a plurality of conveying devices 7 are arranged between the heading machine 1 and the original conveyor belt 3 and between the heading machine 1 and the extended conveyor belt 6. Specifically, each transport device 7 can reciprocate between the heading machine 1 and the original transport belt 3 and between the heading machine 1 and the extended transport belt 6 according to a preset path, so that the gangue accumulated at the rock roadway outlet can be rapidly transported to the original extended belt or the extended transport belt 6 efficiently. Here, the transport apparatus 7 may preferably be a belt transfer conveyor or an AGV or the like.
In addition, a plurality of scraper loaders 9 and mine cars 8 are additionally arranged in the embodiment. The mine car 8 can arrange a plurality of mine cars at the original waste rock storage bin 2 and the expanded waste rock storage bin 5 simultaneously, and can transport the waste rocks stored in the original waste rock storage bin 2 and the expanded waste rock storage bin 5 to the outside for further processing. And each scraper bucket machine 9 is erected at the position of a gangue outlet of the original gangue storage bin 2 and the expanded gangue storage bin 5 and is mainly used for stably and efficiently loading gangue into each mine car 8. Generally, the scraper loader 9 or scraper loader mainly uses two drums of a winch to respectively pull a main rope and a tail rope to make the scraper move back and forth, so that gangue is scraped into a feed chute and then is unloaded into a mine car 8 from a discharge port of the feed chute, thereby realizing the loading operation.
As shown in fig. 2 and 3, fig. 2 is a concrete structural schematic diagram of the expanded waste rock storage bin 5 shown in fig. 1, and fig. 3 is a sectional structural schematic diagram of a waste rock inlet of the expanded waste rock storage bin 5 shown in fig. 2.
Moreover, considering that the hardness of the gangue is large, the appearance structure is irregular, the hardness of the coal ore is soft, and the appearance structure is relatively regular and mellow, so that the silo wall structure of the coal silo 4 originally designed for storing the coal ore cannot be smoothly adapted to the storage of the gangue. To this, this embodiment has improved extension storage cash storehouse 5, and the pole mouth that advances that will extend storage cash storehouse 5 links to each other with the end of extension conveyer belt 6, has seted up a plurality of slide rails 10 along axial direction on the bulkhead of extension storage cash storehouse 5 simultaneously to the tip of each slide rail 10 all extends to the extension and stores up cash storehouse 5 advances cash mouthful department. So set up, when the waste rock is stored up in the extension waste rock storehouse 5 in keeping in, after the waste rock is followed extension conveyer belt 6 unloading, can store up the inside that the waste rock storehouse 5 was stored up to the extension along slide rail 10 in the extension waste rock department of advancing of waste rock storehouse 5 in the extension to this is piled up gradually and is accomplished the storage. Because the effect of slide rail 10, can keep apart the bulkhead and the waste rock that extend storage waste rock storehouse 5, avoid direct and waste rock contact or collision when splendid attire or delivery storehouse waste rock, and the impact force and the frictional force of bearing the waste rock by slide rail 10 have in turn not only realized storing up the protection in waste rock storehouse 5 to the extension, still make the splendid attire and the delivery storehouse of waste rock more smooth and easy.
Generally, the installation space of the extended waste rock storage bin 5 can account for 50% -100% of the installation space of the coal storage bin 4, namely, half to the whole coal storage bin 4 can be changed into the extended waste rock storage bin 5 for waste rock storage. Of course, in the actual use process, the ratio of the installation space of the expanded gangue storage bin 5 to the installation space of the coal storage bin 4 can be flexibly adjusted.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a colliery is tunnelling waste rock conveyor system fast which characterized in that, includes that be used for at the entry driving face operation the entry driving machine (1), be used for saving original storage cash storehouse (2) of the volume of predetermineeing the waste rock, be used for with the waste rock of tunnelling machine (1) excavation transport to original storage cash storehouse (2) original conveyer belt (3), be used for storing coal ore coal bunker (4), set up in coal bunker (4) and be used for keeping in the extension of the volume of predetermineeing the waste rock and store up cash storehouse (5), and be used for with the waste rock of tunnelling machine (1) excavation transport to extension conveyer belt (6) of storing up cash storehouse (5).
2. The coal mine rapid tunneling gangue transport system according to claim 1, further comprising a plurality of transport devices (7) moving back and forth between the heading machine (1) and the head end of the original transport belt (3) and between the heading machine (1) and the head end of the extended transport belt (6) for transporting a fixed amount of gangue to the original transport belt (3) and the extended transport belt (6), respectively.
3. The coal mine rapid excavation gangue transport system according to claim 2, further comprising a mine car (8) for transporting the gangue in the original gangue storage bin (2) and the expanded gangue storage bin (5) to the outside, and a scraper bucket (9) provided at a gangue outlet of the original gangue storage bin (2) and the expanded gangue storage bin (5) for loading gangue into each mine car (8).
4. The coal mine rapid tunneling gangue transport system according to claim 3, wherein a gangue inlet of the extended gangue storage bin (5) is connected with the tail end of the extended transport belt (6), and a plurality of sliding rails (10) which extend to the gangue inlet and are used for sliding loading and unloading gangue are axially arranged on the bin wall of the extended gangue storage bin (5).
5. The coal mine rapid excavation gangue transport system according to claim 4, characterized in that the original conveyor belt (3) and the extended conveyor belt (6) are both belt conveyors.
6. The coal mine rapid tunneling gangue transport system according to claim 5, wherein the installation space of the extended gangue storage bin (5) accounts for 50-100% of the installation space of the coal storage bin (4).
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| CN201911292663.4A CN110878706A (en) | 2019-12-16 | 2019-12-16 | Coal mine rapid tunneling gangue transportation system |
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| CN201911292663.4A CN110878706A (en) | 2019-12-16 | 2019-12-16 | Coal mine rapid tunneling gangue transportation system |
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