AU2014223132B2 - Method and device for using gangue aboveground to backfill mine goaf - Google Patents
Method and device for using gangue aboveground to backfill mine goaf Download PDFInfo
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- AU2014223132B2 AU2014223132B2 AU2014223132A AU2014223132A AU2014223132B2 AU 2014223132 B2 AU2014223132 B2 AU 2014223132B2 AU 2014223132 A AU2014223132 A AU 2014223132A AU 2014223132 A AU2014223132 A AU 2014223132A AU 2014223132 B2 AU2014223132 B2 AU 2014223132B2
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- roll crusher
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000012634 fragment Substances 0.000 claims description 20
- 239000011343 solid material Substances 0.000 claims description 20
- 238000005065 mining Methods 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/08—Filling-up hydraulically or pneumatically
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21F13/002—Crushing devices specifically for conveying in mines
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Disclosed are a method and device for using the gangue aboveground to backfill a mine goaf, the method comprising: in the process of a gangue backfill, crushing the gangue aboveground via a double-roll crusher (4); then conveying the crushed gangue to the bottom of the mine via a material vertical conveyor (6); recrushing the fractions of the gangue in the mine via a double-roll crusher (8) so as to obtain the particle diameter required by a pneumatic conveyor (9); and finally transporting the recrushed gangue to backfill the goaf in the mine via the pneumatic conveyor (9). The method and device for using the mine gangue aboveground to backfill a goaf tunnel in the mine can safely and efficiently transport the gangue from the ground to the goaf in the mine at a depth of a few hundred meters from the ground so as to backfill the goaf in the mine, thus saving the floor area occupied by the gangue piled on the ground, and reducing the danger of earth surface subsidence.
Description
1 2014223132 16 Feb 2017
METHOD AND DEVICE FOR USING GANGUE ABOVEGROUND TO
BACKFILL MINE GOAF
Field of the Invention
The present invention relates to an equipment for back-filling ground gangues into 5 underground mined-out regions and a method thereof, which are especially suitable for directly back-filling ground gangues into underground areas.
Background of the Invention
Gangues, which are also known as coal gangues, are a concomitant product of coal mining, and include massive rocks produced during roadway excavation and dirt bands and 10 overlaying/underlying rocks produced in the mining process in a coal mine. The conventional gangue treatment method is to transport the gangues from the underground area to a ground area and pile up them, creating a ground "construction" that is unique in coal mines — gangue dumps. The existence of such gangue dumps causes many adverse impacts on the environment in a mining area, mainly embodied in the following four 15 aspects: (1) piling of gangue dump: it destroys the ecological environment and has adverse effects on the natural landscape; (2) spontaneous combustion of gangue dump: it pollutes the atmospheric environment in the mining area and endangers human health; (3) eluviation of gangue dump: it destroys the soil structure and pollutes the water systems in the mining area; (4) caving of gangue dump: it endangers human life safety and causes 20 economic loss. According to statistics, the accumulative total amount of piled gangues up to now in China is about 4.5 billion tons, there are more than 1600 large-size gangue dumps and they occupy about 15,000ha. land area, moreover, the accumulation amount increases at a rate of 150 to 200 million tones/year now.
In view of those problems, from the purpose to realize the coordinated development of 25 resource and environmental, it is necessary to seek for technical approaches for exploiting and utilizing mineral resources reasonably, protecting ground constructions and underground water resources, and protecting and transforming the ground environment. As 2014223132 16 Feb 2017 2 the coal resources are exploited continuously in China, the government has enacted a series of policies, in order to urge the enterprises to change the predatory exploitation approach in the past and force the enterprises to improve the recovery rate of resources and the utilization ratio of associated resources. 5 Utilizing ground solid wastes such as gangues and fly ash as filling materials, back-filling the underground mined-out region can solve the problems of solid wastes gangue sand fly ash emission and surface caving, and is of great practical significance and has wide application prospects. However, how to transport the wastes of gangues and the like from the ground to the underground area in depth of hundreds of meters to fill the mined-out 10 region safely, efficiently and economically is an urgent task to be solved.
Summary of the Invention
In view of the above technical problems, it can be desirable for an embodiment of the present disclosure to provide an apparatus for transporting gangues from a ground gangue dump to an underground region and filling the underground region, and a method thereof. 15 A first aspect provides a method for back-filling ground gangues into underground mined-out regions, comprising the following steps: a. loading gangues from a gangue dump via a gangue bunker, a first screw conveyer, and a ground belt conveyer sequentially into a ground roll crusher, to crush the gangues to gangue fragments with the grain size 50mm or less, wherein a discharge port of the 20 said ground gangue bunker is connected to a feed port of the ground roll crusher via the first screw conveyer and the ground belt conveyer sequentially; b. transporting the gangue fragments with the grain size 50mm or less obtained in step 'a' via a second screw conveyer and a vertical solid material dispenser sequentially to an underground area, wherein a discharge port of the ground roll crusher is connected to a 25 feed port of the vertical solid material dispenser via the second screw conveyer, a discharge port of the vertical solid material dispenser is connected to the feed port of 3 2014223132 16 Feb 2017 an underground roll crusher via an underground belt conveyer; c. loading the gangue fragments with the grain size 50mm or less transported to the underground area into an underground roll crusher via an underground belt conveyer, to further crush the gangue fragments with the grain size 50mm or less to gangue 5 fragments with the grain size 30mm or less, wherein a discharge port of the underground roll crusher is connected to a pneumatic conveying device, wherein said pneumatic conveying device comprises a blower fan, said blower fan is connected to one end of a material conveying pipeline via a pressure booster, a mining wet sprayer is arranged at the other end of said material conveying pipeline, and a feeding hopper 10 is arranged on the material conveying pipeline; d. transporting the gangue fragments with the grain size 30mm or less obtained in step 'c' to the underground mined-out region via the pneumatic conveying device, wherein, said vertical solid material dispenser comprises a horizontal feeding chamber, a vertical feeding chamber, and a bevel gear box, said horizontal feeding 15 chamber is arranged with an feeding hopper at one end and communicates with the upper part of the vertical feeding chamber at the other end, the vertical feeding chamber is arranged with a discharge port at its lower end, a horizontal feeding screw rod and a vertical feeding screw rod are arranged in the horizontal feeding chamber and the vertical feeding chamber respectively, one end of the horizontal feeding screw 20 rod is connected with a coupling to a reducer, and the reducer is connected to an electric motor, the other end of the horizontal feeding screw rod is connected to the vertical feeding screw rod via the bevel gear box.
An embodiment provides an equipment for back-filling ground gangues into underground mined-out regions comprises a ground gangue bunker, a ground roll crusher, a vertical 25 solid material dispenser, an underground roll crusher, and a pneumatic conveying device, the discharge port of the ground gangue bunker is connected via a first screw conveyer and a ground belt conveyer sequentially to the feed port of the ground roll crusher, the 4 2014223132 16 Feb 2017 discharge port of the ground roll crusher is connected via a second screw conveyer to the feed port of the vertical solid material dispenser, the discharge port of the vertical solid material dispenser is connected via an underground belt conveyer to the feed port of the underground roll crusher, and the discharge port of the underground roll crusher is 5 connected to the pneumatic conveying device, wherein said pneumatic conveying device comprises a blower fan, said blower fan is connected to one end of a material conveying pipeline via a pressure booster, a mining wet sprayer is arranged at the other end of said material conveying pipeline, and a feeding hopper is arranged on the material conveying pipeline. 10 In an embodiment, the vertical solid material dispenser comprises a horizontal feeding chamber, a vertical feeding chamber, and a bevel gear box, the horizontal feeding chamber is arranged with an feeding hopper at one end and communicates with the upper part of the vertical feeding chamber at the other end, the vertical feeding chamber is arranged with a discharge port at its lower end, a horizontal feeding screw rod and a vertical feeding screw 15 rod are arranged in the horizontal feeding chamber and the vertical feeding chamber respectively, one end of the horizontal feeding screw rod is connected via a coupling to a reducer, and the reducer is connected to an electric motor, the other end of the horizontal feeding screw rod is connected via the bevel gear box to the vertical feeding screw rod. In an embodiment of the present invention, further, the discharge grain size of the ground roll 20 crusher is 50mm or less; the discharge grain size of the underground roll crusher is 30mm or less.
Benefits: in an embodiment of the present disclosure, in the gangue back-filling process, firstly, the gangues are crushed on the ground, secondly, the crushed gangues are transported via a vertical material dispenser to underground areas, in the underground area, 25 the gangue fragments are further crushed to a grain size that meets the requirement for conveying on a pneumatic conveying device, lastly, the gangue fragments are conveyed via the pneumatic conveying device into underground mined-out regions and is filled. The equipment and method for back-filling ground gangues into underground mined-out 5 2014223132 16 Feb 2017 regions may have the advantage that the gangues can be sequentially conveyed from the ground to the underground mined-out region in depth of several hundred meters safely, efficiently and economically, so as to back-fill the gangues into the underground mined-out region, the area occupied by accumulated ground gangues may be saved, the risk of surface 5 subsidence may be reduced, and the cost of environmental control may be saved, and, in addition, the equipment may have compact structure and small footprint, and may be easy to install and dismantle, and have high practicability.
Description of Drawings
Embodiments will now be described by way of example only with reference to the 10 accompanying non-limiting Figures in which:
Fig. 1 is a layout diagram of the equipment according to an embodiment of the present invention;
Fig.2 is a structure diagram of the vertical solid material dispenser according to an embodiment of the present invention; 15 Fig.3 is a structural diagram of the pneumatic conveying device according to an embodiment of the present invention.
Among the figures: 1 - ground gangue bunker, 2 - first screw conveyer, 3 - ground belt conveyer, 4 - ground roll crusher, 5 - second screw conveyer, 6 - vertical solid material dispenser, 7 - underground belt conveyer, 8 - underground roll crusher, 9 - pneumatic 20 conveying device, 61 - reducer, 62 - coupling, 63 - base, 64 -feeding hopper, 65 - horizontal feeding chamber, 66 - gear box, 67 - vertical feeding chamber, 68 - discharge port, 91 - blower fan, 92 - pressure booster, 93 - feeding hopper, 94 - material conveying pipeline, 95 - mining wet sprayer.
Embodiments 25 Hereunder embodiments of the present invention will be further detailed with reference to the accompanying drawings. 6 2014223132 16 Feb 2017
As shown in Fig.l, the method for back-filling ground gangues into underground mined-out regions according to an embodiment of the present invention comprises the following steps: a. loading gangues from a gangue dump via a gangue bunker 1, a first screw conveyer 2, 5 and a ground belt conveyer 3 sequentially into a ground roll crusher 4, to crush the gangues to gangue fragments with the grain size in 50mm or less; b. transporting the gangue fragments with the grain size in 50mm or less obtained in step 'a' via a second screw conveyer 5 and a vertical solid material dispenser 6 sequentially to an underground area; 10 c. loading the gangue fragments with the grain size in 50mm or less transported to the underground area into an underground roll crusher 8 via an underground belt conveyer 7, to further crush the gangue fragments with the grain size in 50mm or less to gangue fragments with the grain size in 30mm or less; d. transporting the gangue fragments with the grain size in 30mm or less obtained in step 15 'c' to the underground mined-out region via a pneumatic conveying device 9.
As shown in Fig.l, the equipment for back-filling ground gangues into underground mined-out regions in an embodiment of the present invention comprises a ground gangue bunker 1, a ground roll crusher 4, a vertical solid material dispenser 6, an underground roll crusher 8, and a pneumatic conveying device 9. The discharge port of the ground gangue 20 bunker 1 is disposed above the feed end of a first screw conveyer 2, and the discharge end of the first screw conveyer 2 is disposed above the lower end (i.e., the feed end) of a ground belt conveyer 3, the upper end (i.e., the discharge end) of the ground belt conveyer 3 is disposed above the feed port of the ground roll crusher 4, the discharge port of the ground roll crusher 4 is disposed above the feed end of the first screw conveyer 2, the 25 discharge end of a second screw conveyer 5 is located at the feed port of the vertical solid material dispenser 6, the discharge port of the vertical solid material dispenser 6 is disposed above the lower end (i.e., the feed end) of the underground belt conveyer 7, the 2014223132 16 Feb 2017 7 upper end (i.e., the discharge end) of the underground belt conveyer 7 is located above the feed port of the underground roll crusher 8, and the discharge port of the underground roll crusher 8 is connected to the pneumatic conveying device 9.
As shown in Fig.2, the vertical solid material dispenser 6 comprises a horizontal feeding 5 chamber 65, a vertical feeding chamber 67, and a bevel gear box 66. The horizontal feeding chamber 65 is fixed to a base 63, and the horizontal feeding chamber 65 is arranged with a feeding hopper 64 at one end and communicates with the upper end of the vertical feeding chamber 67 at the other end, the vertical feeding chamber 67 is arranged with a discharge port 68 at its lower end, a horizontal feeding screw rod and a vertical 10 feeding screw rod are arranged in the horizontal feeding chamber 65 and the vertical feeding chamber 67 respectively, one end of the horizontal feeding screw rod is connected via a coupling 62 to a reducer 61, the reducer 61 is connected to an electric motor, and the other end of the horizontal feeding screw rod is connected via the gear box 66 to the vertical feeding screw rod. 15 As shown in Fig.3, the pneumatic conveying device 9 comprises a blower fan 91, the blower fan 91 is connected via a pressure booster 92 to one end of a material conveying pipeline 94, a mining wet sprayer 95 is arranged at the other end of the material conveying pipeline 94, and a feeding hopper 93 is arranged on the material conveying pipeline 94.
The electric motors of all components of the equipment according to an embodiment of the 20 present invention are the explosion-proof motors applicable to underground areas of coal mines, which voltage is 380/660V; the first screw conveyer 2 and the second screw conveyer 5 have 300t/h conveying capacity; the ground belt conveyer 3 and ground belt conveyer 7 have 260t/h conveying capacity, the conveyable grain size is 0~ 100mm, the inclined length of the conveyer engine body is 13m, the belt is flame-retardant rubber belt, 25 the minimum height of the upper end of the conveyer is 3m, and the lower end of the underground belt conveyer 7 is level, in 800mm length and 600mm height; the vertical solid material dispenser 6 has 500~800t/h processing capacity; the maximum feeding grain 2014223132 16 Feb 2017 8 size of the ground roll crusher 4 is 300mm, the discharge grain size is 50mm or less, and the processing capacity is 200~600t/h; the rotation speed of the two rolls of the underground roll crusher 8 is 250~350rpm, the discharge grain size is 30mm or less, and the processing capacity is 200t/h, and the mounting height of the underground roll crusher 5 8 is smaller than 1800mm; the air pressure of the pneumatic conveying and filling system 9 is 0.4-0.5MPa, the air consumption rate is 250~300m3/h, the pipe diameter of the material conveying pipeline 94 is 100mm, the conveying capacity of the pneumatic conveying and filling system 9 is 30~35m /h, and the maximum conveying distance is 500m.
While the present invention has been illustrated and described with reference to some 10 preferred embodiments, It should be pointed out that the common technical personal in the art should recognize that various improvement and modifications can be made without departing from the theory of the present invention. All of such improvement and modifications shall be deemed as the protected scope of the present invention.
It is to be understood that, if any prior art publication is referred to herein, such reference 15 does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.
In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word 20 “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
Claims (2)
- Claims
- 1. A method for back-filling ground gangues into underground mined-out regions, comprising the following steps: a. loading gangues from a gangue dump via a gangue bunker, a first screw conveyer, and a ground belt conveyer sequentially into a ground roll crusher, to crush the gangues to gangue fragments with the grain size 50mm or less, wherein a discharge port of the said ground gangue bunker is connected to a feed port of the ground roll crusher via the first screw conveyer and the ground belt conveyer sequentially; b. transporting the gangue fragments with the grain size 50mm or less obtained in step 'a' via a second screw conveyer and a vertical solid material dispenser sequentially to an underground area, wherein a discharge port of the ground roll crusher is connected to a feed port of the vertical solid material dispenser via the second screw conveyer, a discharge port of the vertical solid material dispenser is connected to the feed port of an underground roll crusher via an underground belt conveyer; c. loading the gangue fragments with the grain size 50mm or less transported to the underground area into an underground roll crusher via an underground belt conveyer, to further crush the gangue fragments with the grain size 50mm or less to gangue fragments with the grain size 30mm or less, wherein a discharge port of the underground roll crusher is connected to a pneumatic conveying device, wherein said pneumatic conveying device comprises a blower fan, said blower fan is connected to one end of a material conveying pipeline via a pressure booster, a mining wet sprayer is arranged at the other end of said material conveying pipeline, and a feeding hopper is arranged on the material conveying pipeline; d. transporting the gangue fragments with the grain size 30mm or less obtained in step 'c' to the underground mined-out region via the pneumatic conveying device, wherein, said vertical solid material dispenser comprises a horizontal feeding chamber, a vertical feeding chamber, and a bevel gear box, said horizontal feeding chamber is arranged with an feeding hopper at one end and communicates with the upper part of the vertical feeding chamber at the other end, the vertical feeding chamber is arranged with a discharge port at its lower end, a horizontal feeding screw rod and a vertical feeding screw rod are arranged in the horizontal feeding chamber and the vertical feeding chamber respectively, one end of the horizontal feeding screw rod is connected with a coupling to a reducer, and the reducer is connected to an electric motor, the other end of the horizontal feeding screw rod is connected to the vertical feeding screw rod via the bevel gear box.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100648005A CN103133034A (en) | 2013-02-28 | 2013-02-28 | Method and equipment for backfilling underground goaf with waste rock on well |
| CN201310064800.5 | 2013-02-28 | ||
| PCT/CN2014/071048 WO2014131323A1 (en) | 2013-02-28 | 2014-01-22 | Method and device for using gangue aboveground to backfill mine goaf |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2014223132A1 AU2014223132A1 (en) | 2014-11-06 |
| AU2014223132B2 true AU2014223132B2 (en) | 2017-04-06 |
Family
ID=48493413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2014223132A Ceased AU2014223132B2 (en) | 2013-02-28 | 2014-01-22 | Method and device for using gangue aboveground to backfill mine goaf |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN103133034A (en) |
| AU (1) | AU2014223132B2 (en) |
| DE (1) | DE112014000061B4 (en) |
| WO (1) | WO2014131323A1 (en) |
| ZA (1) | ZA201407066B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133034A (en) * | 2013-02-28 | 2013-06-05 | 中国矿业大学 | Method and equipment for backfilling underground goaf with waste rock on well |
| CN103603680B (en) * | 2013-11-14 | 2015-09-02 | 山西潞安环保能源开发股份有限公司 | Deep tunnel whitewashing and the quick Transfer method of concreting material one well two storehouse formula |
| WO2015103765A1 (en) * | 2014-01-10 | 2015-07-16 | 江苏新世纪江南环保股份有限公司 | Method of using ammonia desulphurization technology to efficiently remove acidic gas sulfide |
| CN104061016B (en) * | 2014-06-23 | 2016-03-30 | 中国矿业大学 | A kind of filling equipment and method for thin coal seam five-bit drilling shearer |
| CN105298498B (en) * | 2015-11-02 | 2017-06-20 | 中国恩菲工程技术有限公司 | The back production of ore, transport and backfill system and method |
| CN106742114B (en) * | 2017-02-22 | 2020-06-23 | 河南工程学院 | Goaf filling and compacting device |
| CN107738927A (en) * | 2017-10-27 | 2018-02-27 | 北京艾可马恩矿业科技有限公司 | Adding set for the curing agent of gangue in coal mine |
| CN112343651A (en) * | 2020-06-24 | 2021-02-09 | 山东恒驰矿业装备科技有限公司 | Process and equipment for filling mining by using coal gangue |
| CN112459833B (en) * | 2020-11-25 | 2021-07-20 | 太原理工大学 | Gangue conveying backfill system and method for laying transmission rubber belt under rail |
| CN112943245A (en) * | 2021-03-24 | 2021-06-11 | 中勘资源勘探科技股份有限公司 | Technical method for performing gangue filling coal mining by utilizing ground directional drilling |
| CN113898404A (en) * | 2021-09-15 | 2022-01-07 | 中铁八局集团昆明铁路建设有限公司 | Large-gradient inclined shaft anchor spraying and discharging device and system |
| DE102022202508A1 (en) | 2022-03-14 | 2023-09-14 | Technische Universität Bergakademie Freiberg, Körperschaft des öffentlichen Rechts | Device for filling underground cavities |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2655542C3 (en) * | 1976-12-08 | 1980-05-14 | Bergwerksverband Gmbh, 4300 Essen | Process for the hydraulic introduction of backfill and device for carrying out the process |
| SU1234662A1 (en) * | 1984-09-21 | 1986-05-30 | Джезказганский Ордена Ленина Горно-Металлургический Комбинат Им.К.И.Сатпаева | Method of erecting a fill-up body |
| RU2052130C1 (en) * | 1992-08-18 | 1996-01-10 | Научно-исследовательский, проектный и конструкторский институт горного дела и металлургии цветных металлов "Гипроцветмет" | Process of hardening filling of underground workings with waste of metallurgical works and equipment for its implementation |
| DE4331641C1 (en) | 1993-09-17 | 1995-03-09 | Dmt Gmbh | Process for introducing pneumatic packing with the addition of fine-grain fillers, and apparatus for carrying out the process |
| RU2077677C1 (en) * | 1993-12-22 | 1997-04-20 | Государственный научно-исследовательский, проектный и конструкторский институт горного дела и металлургии цветных металлов "Гипроцветмет" | Method for saving resources in backfilling the worked out space |
| CN1891954A (en) * | 2005-07-06 | 2007-01-10 | 山东科技大学 | Stirring-cage type wet-spraying machine |
| CN201367917Y (en) * | 2009-03-27 | 2009-12-23 | 袁秋新 | Impact wind pressure type pipeline waste rock removing device |
| CN101737080B (en) * | 2009-12-04 | 2011-08-10 | 中国矿业大学 | Tray type solid material vertical and continuous delivery system |
| CN201606111U (en) * | 2009-12-28 | 2010-10-13 | 三一重型装备有限公司 | Crushing, pumping and filling system under gangue mine |
| CN201891434U (en) * | 2010-09-14 | 2011-07-06 | 中国矿业大学 | Chain type feeding system for filling coal mining |
| CN101967993B (en) * | 2010-09-30 | 2012-09-05 | 江苏中机矿山设备有限公司 | Underground gangue sorting and filling system and method |
| CN102128051A (en) * | 2011-03-11 | 2011-07-20 | 中国矿业大学 | Method for filling gob area with attal in coal mine underhole |
| CN102748071B (en) * | 2012-06-20 | 2014-08-06 | 鄂托克前旗长城煤矿有限责任公司 | Underground backfilling and transporting method for ground gangue of coal mine |
| CN103133034A (en) * | 2013-02-28 | 2013-06-05 | 中国矿业大学 | Method and equipment for backfilling underground goaf with waste rock on well |
-
2013
- 2013-02-28 CN CN2013100648005A patent/CN103133034A/en active Pending
-
2014
- 2014-01-22 AU AU2014223132A patent/AU2014223132B2/en not_active Ceased
- 2014-01-22 DE DE112014000061.2T patent/DE112014000061B4/en not_active Expired - Fee Related
- 2014-01-22 WO PCT/CN2014/071048 patent/WO2014131323A1/en active Application Filing
- 2014-09-29 ZA ZA2014/07066A patent/ZA201407066B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014131323A1 (en) | 2014-09-04 |
| CN103133034A (en) | 2013-06-05 |
| ZA201407066B (en) | 2015-11-25 |
| DE112014000061B4 (en) | 2019-10-17 |
| DE112014000061T5 (en) | 2014-12-31 |
| AU2014223132A1 (en) | 2014-11-06 |
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