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Matches 1 - 50 out of 6,470

Document Document Title
WO/2018/132054A1
The present disclosure relates to a vehicular work machine (10) that is adapted for handling at least two different interchangeable tools (4). The machine (10) also comprises a user control device (11) and a water supply arrangement (31)...  
WO/2018/126371A1
Provided is a downhole detector, comprising a waterproof outer housing (1); the top of said waterproof outer housing (1) is provided with a suspension ring (2), the waterproof outer housing (1) is internally provided with a circuit chamb...  
WO/2018/126386A1
A downhole detector, comprising: a waterproof housing (1), a top portion of the waterproof housing (1) being provided with a lifting ring, while the waterproof housing (1) is provided therein with a circuit cavity (3) and a battery cavit...  
WO/2018/126589A1
Disclosed is a method for controlling wind pressure in a subway tunnel pressure relief hole, said method comprising the following steps: S1, a system collecting relevant parameters of a train, the parameters comprising train speed and tr...  
WO/2018/121107A1
A mine anti-explosion trapezoidal sealing wall and a construction method therefor, which are suitable for the situation that it's too late to construct a conventional sealing wall when thermodynamic disasters such as an explosion and a f...  
WO/2018/121035A1
A customized method for determining a coal mining face floor water inrush risk level belongs to the field of coal mining safety. The method comprehensively takes account of the following factors: a water pressure at a coal mining face fl...  
WO/2018/113227A1
Disclosed is an electrical pulse blockage-removal and permeability increasing method for a coal bed methane well that is suitable for efficient exploitation of a coal bed methane well, the blockage-removal and permeability increasing met...  
WO/2018/107932A1
A real-time automatic monitoring system and method for coal-rock power disaster acoustic-electricity gas, belonging to the field of mine safety and monitoring and control. The system is composed of an acoustic wave probe (1), an electrom...  
WO/2018/108223A1
A draining mesh module (1) for building into a construction, such as a tunnel wall, to provide draining channels in said construction, comprises at least one semi pipe (21) of a flexible material. The draining mesh module (1) has a longi...  
WO/2018/102924A1
The present invention discloses a safety devices adapted to prevent workers from going into hazardous environment, such as underground using the faulty safety device. As a safety device, typically embodied as a cap lamp, must be charged ...  
WO/2018/103304A1
Disclosed are a system and method for the fracturing and permeability enhancement of a coal body using an electrical pulse, which are applicable for improving the gas extraction rate of a low-permeability and high-adsorbability coal laye...  
WO/2018/103505A1
A compound inhibitor for preventing spontaneous combustion of coal and a preparation method therefor, the compound inhibitor comprising polyacrylic acid super absorbent resin, vitamin C and water, the mass percentage concentration of a m...  
WO/2018/099261A1
A stoping method for an oxygen-free working surface of a highly gaseous mine, comprising: aiming at a first coal seam of the highly gaseous mine which is not disturbed and a working surface (1) of which roof fissure of the coal seam is n...  
WO/2018/086505A1
A stampede preventing method for a pedestrian passage (3) in a confined space of a subway. Pedestrian flow sensors are arranged on the pedestrian passage (3), and are connected to a control console by means of data transmission lines; th...  
WO/2018/085891A1
A conveyor module (1), adapted to be releasably attached to at least one other conveyor module (1) to form a conveyor assembly (15). Each conveyor module (1) includes a substantially longitudinal main frame (4), said main frame (4) being...  
WO/2018/082201A1
Disclosed is a quick pressure relief gas discharge method for exposing an extra thick and soft projecting coal seam in a vertical shaft, comprising the following steps: designing drainage drill holes in several circles along a shaft exca...  
WO/2018/076492A1
Disclosed is a pulse detonation cracking and permeability-increasing method for a coal-bed gas well, applied to coal-bed gas well mining for a coal bed (1) with a low gas permeability. In the method, first, a positive-electrode coal-bed ...  
WO/2018/071965A1
A ventilating assembly for ventilating underground mines, the assembly comprising: a body defining an elongate passage for allowing flow of fluid therethrough, the passage being positioned relative to an inlet for receiving fluid and an ...  
WO/2018/073555A1
The present invention relates to a sealing system, its uses and method of use for forming a seal against a surface, and in particular for plugging and sealing an orifice such as a road or railway tunnel to prevent or minimise the dispers...  
WO/2018/075914A1
Apparatus for allowing ventilation for underground tunnels through a ventilation shaft opening to atmosphere yet preventing underground flooding from surface waters pouring through the grate comprises an assembly that fits within the ven...  
WO/2018/068866A1
The invention relates to an operation arrangement and a method for operating a mobile haulage arrangement for continuously conveying fragmented material in a conveying direction. The operation arrangement comprises a first and a second o...  
WO/2018/068409A1
Provided is a structure underlaid gob area filling expansion bag, comprising a film filling expansion bag (1). One end of the film filling expansion bag is provided with an opening; and a filling pipeline device (2) is arranged at the po...  
WO/2018/059734A1
The invention relates to a refuge chamber (1) for accommodating persons seeking protection, the refuge chamber (1) comprising a gas-proof, lockable door (2), through which an interior space (4) can be entered when the door (2) is in an o...  
WO/2018/058770A1
The present invention is applicable in the field of backfill mining under a coal mining shaft. Disclosed are a compacting shearer conveying machine and a compaction method. The machine comprises a compacting shearer (5), a transition she...  
WO/2018/058198A1
The present invention relates to a blasting system including blast holes for being blasted. Reporting means is provided for reporting the blast status of respective blasted holes. Advantageously, the reporting means reports the blast sta...  
WO/2018/058038A1
A system for measuring geometric change in a subterranean structure. The system includes an apparatus communicably couplable to a computing system. The apparatus is couplable to a mobile platform and includes a sensor configured to acqui...  
WO/2018/045632A1
A method for recycling room coal pillars by solid backfilling in coordination with artificial pillars, comprising: conveying a solid material (3) on the ground and a cementing material (4) to a room pillar gob (9) by means of a batching ...  
WO/2018/041348A1
The present invention relates to handling of dust-laden air in a mine tunnel and particularly to a mobile unit (10) for a mine tunnel comprising a dust extraction system (25) and a method of conveying material and removing dust in a mine...  
WO/2018/038658A1
The present invention relates to a working machine (10) comprising a receptacle portion (12) for accommodating load. The working machine is adapted to have a load receiving condition in which the receptacle portion (12) comprises an open...  
WO/2018/029051A1
The invention relates to a coating system for draining off water, more particularly for draining surfaces of building structures such as tunnels, the system having: (a) at least one hydrophilic layer; and (b) at least one hydrophobic lay...  
WO/2018/027245A3
The invention provides a rock face movement detector which includes an elongate member which extends between a first end and a second end, an anchoring mechanism for anchoring the member in a hole in a rock face on or attached to the fir...  
WO/2018/009970A1
In an aspect, there is disclosed a system (5) for forming a seal (12) of a mine passage, the system including: a plurality support members (10) adapted to extend between a roof (17) and floor (15) of the passage, each of the plurality of...  
WO/2018/013974A1
Apparatus allowing ventilation through a ventilation shaft to an underground ventilation duct fluidly communicating through the ventilation shaft to an atmospheric opening of the shaft and on threat of flooding operable to prevent downwa...  
WO/2018/013981A3
Apparatus allowing ventilation through a ventilation shaft to an underground ventilation duct fluidly communicating through the ventilation shaft to an atmospheric opening of the shaft and on threat of flooding operable to prevent downwa...  
WO/2018/013981A9
Apparatus allowing ventilation through a ventilation shaft to an underground ventilation duct fluidly communicating through the ventilation shaft to an atmospheric opening of the shaft and on threat of flooding operable to prevent downwa...  
WO/2018/013970A1
Apparatus allowing ventilation through a ventilation shaft to an underground ventilation duct fluidly communicating through the ventilation shaft to an atmospheric opening of the shaft and on threat of flooding operable to prevent downwa...  
WO/2018/013984A1
Apparatus allowing ventilation through a ventilation shaft to an underground ventilation duct fluidly communicating through the ventilation shaft to an atmospheric opening of the shaft and on threat of flooding operable to prevent downwa...  
WO/2017/217865A1
The present application discloses a method for controlling at least one apparatus (1) moving on a guiding means positioned along a tunnel (3), comprising: receiving a sensor data from the at least one apparatus (1); recognizing a pattern...  
WO/2017/205725A1
A fan assembly, and associated methods are shown. Fan assemblies and methods shown include nozzles within a housing of the fan. Fan assemblies and methods shown may provide water and/or fire suppression chemicals within a fan housing tha...  
WO/2017/204816A1
Methods for stabilizing a friable substrate using a dust suppressant composition comprising a poly-(METAS)-Chitosan polymer.  
WO/2017/198109A1
Disclosed is a pitshaft coal uncovering method for coal mines whose coal seam lies in a main aquifer. The method comprises: constructing a vertical shaft (2) from the ground (1) down to an aquiclude or a weak aquifer in an overlying stra...  
WO/2017/188859A2
The invention relates to the mining industry and may be used for preventing endogenous fires in warehouses and during transport in railway cars by treating the surface of coal with an antipyrogen. The technical problem of the claimed com...  
WO/2017/188859A3
The invention relates to the mining industry and may be used for preventing endogenous fires in warehouses and during transport in railway cars by treating the surface of coal with an antipyrogen. The technical problem of the claimed com...  
WO/2017/181248A1
The present invention relates to a conveyor. The conveyor includes a frame including composite material, one or more rollers for mounting to the frame, and a transportation belt for being transported by the rollers. Advantageously, the f...  
WO/2017/178425A1
A rock feeder deflector device (30) for a rock feeder (10) used in underground mining applications. The rock feeder (10) has a material transport portion (20) for transporting rock material (12) to a conveyor (14). The rock feeder deflec...  
WO/2017/177271A1
A mine safety system is provided for preventing coal dust explosions in an underground coal mine. The system comprises a reservoir, for storing an inerting agent; a compressor, for providing compressed air; and a mixer, coupled to the re...  
WO/2017/125127A1
The present invention relates to an advance working and loading machine and to a method for quarrying rock using such a machine. Rock is quarried with an attachment implement (30) on an adjustable boom arm (20). The quarried rock is rece...  
WO/2017/121927A1
The invention relates to a method and to an apparatus for paste backfill. The apparatus comprises a mixing means configured to produce paste (11), a storage means configured to store paste (11), and a feeding means configured to feed pas...  
WO/2017/121145A1
Disclosed is a life-preserving device based on oxygen-rich water, comprising a storage chamber (1), a reaction chamber (2), and a water/gas separator (3). The water/gas separator (3) comprises a valved gas outlet (10) and a valved water ...  
WO/2017/117667A1
Known georeferencing techniques require input in the form of manually-chosen anchor points or dense surveyed data. The present invention is an improved method and system for georeferencing underground geometric data. The method comprises...  

Matches 1 - 50 out of 6,470