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WO/2020/098033A1 |
Disclosed are a supporting structural body for local goaf filling under hard roof conditions and a construction method therefor, belonging to the technical field of stratum movement control in coal mining. The supporting structural body ...
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WO/2020/098089A1 |
A filling mining method applied to a fully mechanized top coal caving working face. The method comprises: A, dividing the fully mechanized top coal caving working face in the extending direction of the working face into a filling area an...
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WO/2020/093704A1 |
Disclosed are a microbial modification filling material and a preparation method, wherein the filling material is mainly composed of a coal gangue structural material and a cementitious material. The coal gangue structural material is ma...
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WO/2020/093703A1 |
Provided is a monitoring system for bearing compression rate of filling body (5) in coal mine goaf and a monitoring method thereof, according to the position of the buried depth of a goaf filling body (5), a ground information processing...
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WO/2020/087183A1 |
Disclosed herein are feeder pans for use in forming a continuous feeder pan conveyor for transporting a bulk material. The feeder pan comprises a plate defined by a longitudinal nose edge and an opposed longitudinal tail edge and a first...
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WO/2020/088694A1 |
A quantified design method for the coordination and deformation of a gob-side entry retaining support system. First, constructing a gob-side entry retaining support system; then establishing a structural mechanics model; acquiring, accor...
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WO/2020/092062A1 |
Methods of treating leachates in rock piles. Exemplary leachates include neutral aqueous leachates containing selenates and nitrates, said leachates being found in waste rock piles from coal mining operations. In certain embodiments, the...
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WO/2020/077967A1 |
A multilevel deep well cooling and geothermal utilization system and process. The system comprises a deep well heat harnessing system (1), a shallow part heat-exchanging system (2), and a high-temperature water lifting system (3). The de...
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WO/2020/075038A1 |
A machine (1) for outputting at least one jet of fluid comprises a tubular body (2), blowing means (5) for generating an air flow along a propagation direction (P); an output mouth (6) arranged inside the tubular body (2) for spraying a ...
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WO/2020/073256A1 |
An escape system(200,201) comprises one or more escape units(212-1 to 212-7) arranged in a transportation system(110), wherein each of the one or more escape units(212-1 to 212-7) is operable to provide a path to allow one or more person...
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WO/2020/073774A1 |
An early warning method and system for a roadheader remote monitoring system. The method comprises: preconfiguring early warning strategies corresponding to respective parameters of a roadheader, and preconfiguring combined parameter inf...
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WO/2020/077370A1 |
The invention provides a device for monitoring movement to a rock face which includes a rod (12) which has a first end and a second end, an anchor (18) on the second end, a housing (20) which is axially moveably mounted on the rod, which...
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WO/2020/070695A1 |
This invention relates to a measuring apparatus (A) and more particularly, but not exclusively, to a measuring apparatus (A) for measuring the relative movement of hanging walls and foot walls or strata in a mine. The measuring apparatus...
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WO/2020/062470A1 |
Provided is an apparatus for recognizing a coal-rock interface based on solid-state laser radar imaging. The apparatus comprises a plurality of laser radar modules, a signal transmission module, a data storage module, a radar imaging mod...
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WO/2020/055248A1 |
An arrangement for providing An intermediate sealed off space is provided between an outer sidewall of the transportation pod and an inner sidewall of the transportation tube, by moving the sealing module, connected to at least a first o...
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WO/2020/052015A1 |
Disclosed are a steel belt conveying device for an anchor conveyor, and an anchor conveyor. The conveying device comprises an upper horizontal conveying portion (A), a left inclined conveying chain (B1), a right inclined conveying chain ...
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WO/2020/048094A1 |
A method of recovering a room-and-pillar coal pillar by using external replacement supports. In the recovery of a room-and-pillar coal pillar, a cement material wall (3) is formed by performing pouring around a coal pillar (1) having a w...
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WO/2020/047879A1 |
An intelligent inspection system for a tunnel system comprises: a rail (02) fixedly disposed on an inner surface of a tunnel (01), and used to guide the motion of an intelligent robot (03) and provide power for the intelligent robot (03)...
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WO/2020/047605A1 |
The present invention relates to a mining system. The system includes a continuous miner for forming plunge tunnels from a roadway. A flexible conveyor system is coupled to the continuous miner for conveying mined material from the plung...
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WO/2020/048137A1 |
A method for determining the internal stress of a solid-cut-and-fill material, characterized by comprising the following steps: step 1), acquiring solid-cut-and-fill material stress data, and fitting a stress-strain relationship of the s...
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WO/2020/048095A1 |
Disclosed is an internal injection replacement support room type coal pillar recovery method. In the process of room type coal pillar recovery, room type coal pillars (1) with an aspect ratio greater than 0.6 are divided into reserved co...
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WO/2020/044322A1 |
A feeder arrangement (102) for a slurry transport system (100), which is preferably a hydro hoist, includes a chamber with a high pressure water inlet (114), a low pressure water outlet (122), and a low pressure solids inlet (118) at a t...
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WO/2020/038051A1 |
A method for calculating the amount of energy conservation of open controllable circulating ventilation for an extra-long highway tunnel. The method comprises the following steps: firstly, determining a calculation formula for the total ...
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WO/2020/029557A1 |
Disclosed is a method for categorizing the degree of a disaster caused by a diving leakage in shallow buried coal seam mining, belonging to the coal mining protection field for solving the problem that it is impossible to accurately dete...
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WO/2020/028946A1 |
The present invention relates to a flexible conveyor system. The system includes a supply conveyor module and a receiver conveyor module. A hitch mechanism is provided for pivotally coupling the supply conveyor module to the receiver con...
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WO/2020/016716A2 |
A pumping system for pumping a medium is described. The system comprises: at least one transverse pressure exchange chamber, but preferably multiple pressure exchange chambers. Each pressure exchange chamber has a valve arrangement at ea...
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WO/2020/014747A1 |
The present invention relates to a system for recovering a continuous miner arrangement from a tunnel. The system includes a coupler for coupling the continuous miner arrangement to a pulling apparatus. The pulling apparatus pulls the co...
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WO/2020/012014A1 |
The invention relates to a train station (1), in particular a tunnel-type train station, comprising at least one public waiting area (3) for people (4) to wait and at least one transport route (5) for vehicles (6) to passtravel, wherein ...
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WO/2020/010696A1 |
Provided is a method for recovering room coal pillars through reserved roadway cemented filling, especially suitable for safe and efficient recovery of residual coal pillars in a room mining face in ecologically vulnerable mining area in...
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WO/2020/012010A1 |
The invention relates to a train station (1) comprising at least one public waiting area (3) for people (4) to wait and at least one transport route (5) for vehicles (6) to travel, wherein the public waiting area (3) is arranged adjacent...
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WO/2020/006816A1 |
A three-dimensional space dust control and removal method for dust produced during bracket motion of a fully mechanized mining face. Different dust-proof measures are taken for upper, middle and lower spaces of the fully mechanized minin...
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WO/2020/009646A1 |
The present disclosure relates to a method and control circuitry/arrangement/device for power control of a mining machine. The mining machine comprises one or more energy sources. The method comprises assigning priorities to electric pow...
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WO/2020/009645A1 |
The present disclosure relates to a system (200), method, control unit and computer program product for battery charge management of one or more battery operated mining machines (210a, 210b). The system for battery charge management comp...
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WO/2020/006817A1 |
A moistening agent for coal mine spray and dust reduction and a preparation method. The moistening agent comprises: 3%-5% of lignosulfonate, 3%-5% of vinylacetate, 3%-5% of 2-acrylamide-2-methyl propanesulfonic acid, 0.05%-0.1% of an ini...
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WO/2020/006815A1 |
Disclosed are a dust isolation and dust settling method and a dust isolation and dust settling system for dust production due to cutting of a coal mining machine on a fully mechanized mining face. Multiple first air/water nozzles (9) are...
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WO/2020/000501A1 |
Disclosed is a fire test system and method for a multi-slope subway interval tunnel, the system comprising a multi-slope interval tunnel model, a smoke control device and a fire test subsystem. The multi-slope interval tunnel model compr...
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WO/2019/242190A1 |
A multi-stage combustion shock wave-induced cracked coal body and a heat injection alternating reinforced gas extraction method, wherein a large amount of N2 or CO2 is injected into a borehole by means of a gas injection and heat injecti...
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WO/2019/237908A1 |
Disclosed is a blocking and drainage combined treatment method for water leakage at a construction joint of a secondary lining of a tunnel. According to the method, water is blocked by means of an anchor bolt (3) and a rubber waterstop (...
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WO/2019/232587A1 |
There is disclosed a flexible duct arrangement (10) including a flow meter (12) and a flexible duct (14). The flow meter (12) includes a pressure sensor (16), a substantially flexible elongate body (18) arranged to be supported between o...
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WO/2019/232583A1 |
In an aspect there is disclosed a flexible duct arrangement (10) including a duct (12) and a flow control valve (14). The duct (12) includes a first duct section (16) and a second or branch duct section (18) that branches from the first ...
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WO/2019/232593A1 |
There are disclosed examples of a duct arrangement (10) including an outer flexible duct (12) and a flexible regulator duct (14) fitted within the outer flexible duct (12). The regulator duct section (14) includes a choke (16) adapted to...
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WO/2019/234616A1 |
A ventilation and smoke extraction system disclosed is flexible and effective. The system comprises an array of fans mounted on a plurality of carriages, at least one rail along which the plurality of carriages are displaceably disposed,...
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WO/2019/228042A1 |
Disclosed is a hydraulic perforation unmanned gas extraction method, wherein a high-pressure hydraulic perforation gun (5) is used to perform perforation at a coal centre line in front of a coal tunnel excavation face (6) to form a high-...
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WO/2019/223628A1 |
Disclosed is a minimum flow unit-based method for calculating a nitrogen charging pressure loss of a goaf. The method comprises the following steps: (1) establishing a minimum flow model of a goaf, and determining a minimum flow unit of ...
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WO/2019/225852A1 |
The present invention relates to a smart tunnel lamp control system and a method therefor. According to the present invention, provided is a smart tunnel lamp control system comprising: a first detection sensor, installed at a position c...
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WO/2019/218546A1 |
A mining method for an inclined medium-thick ore body. Stopes are arranged along the trend, the length is 55 m, the width of an ore body (14) is equal to the horizontal thickness of the ore body (14), the height of a middle section is 40...
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WO/2019/222607A1 |
An opportunity charging system for providing power from one mining machine to another. The mining machines may comprise mobile vehicles, such as for example a loader and a hauler. The charging system may involve charging the loader while...
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WO/2019/218768A1 |
A fully-enclosed gas extraction pump energy conservation system employing a drag-reducing working fluid comprises a gas purification system (1), a gas extraction pump working fluid circulation system (2), a fluid supplementing system (3)...
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WO/2019/210884A1 |
An anti-runaway cart self-adjusting buffering system for inclined path transportation, and an application thereof, said system comprising a minecart lifting winch (8), a cart-blocking fence lifting system, and a cart-blocking fence buffe...
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WO/2019/210657A1 |
Disclosed is an integrated hole sealing device for loose blasting and water injection of an underground well deep hole. The device comprises a capsule plug (1), an outer capsule (2), an inner capsule (3), a capsule water injection pipe (...
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