Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 6,946

Document Document Title
WO/2021/068746A1
Provided is an image acquisition device (1) for tunnel inspection, comprising a plurality of CCD cameras (11), a plurality of auxiliary light sources (12), and a fixing support (13). The CCD cameras (11) and the auxiliary light sources (...  
WO/2021/068691A1
A strong-weak-strong clean mining and full filling method for a coal mine. The method is particularly suitable for coal mining of "three-under" pressure coal in a coal mine having a difficulty in mine water treatment. A coal body to be m...  
WO/2021/071353A1
The present invention relates to a method for covering open mine area in the mitigation of abandoned mine drainage formation and a system thereof. Accordingly, the method (100) includes: a) providing a plurality of modular panels (110); ...  
WO/2021/051203A1
Provided herein are systems and methods for cooling a volume or structure, which may provide for cogeneration of refrigeration and electricity from a cryogenic liquid. Methods described herein may include steps of converting a cryogenic ...  
WO/2021/052629A1
The present invention relates to a warning device for a mining control module for facilitating a replacement. Accordingly,, a warning device for a mining control module is suggested, which comprises a housing (10) that is configured to b...  
WO/2021/053111A1
According to an example aspect of the present invention, there is provided a method, comprising: receiving a three-dimensional tunnel model (410) of an underground tunnel system of a worksite, receiving two-dimensional position data (420...  
WO/2021/047748A1
A connection device (1) for suspending a monorail beam, wherein the connection device (1) comprises a top anchor (2) integrated with a roof bolt or attachable to a roof bolt, wherein the connection device (1) comprises a clamping device ...  
WO/2021/045722A1
A system for mining material in an underground tunnel, comprises a rail on the roof of the tunnel. A tram is supported on the rail and is movable along the rail. The tram has a conveyor for moving material along the length of the tram. M...  
WO/2021/042207A1
There is described an interior positioning system for tracking spatial position of communication devices within a remote location. The interior positioning system generally has: a radio frequency network distributed through said remote l...  
WO/2021/046585A1
The invention provides a process for backfilling which includes a step of pumping a slurry to a backfill site and allowing it to set therein, the slurry comprising water, an aggregate and a backfill admixture composition comprising a sea...  
WO/2021/035893A1
Provided is a multi-level early warning method for overall efficiency of a main shaft hoisting system. The method comprises: firstly, setting start-up rate, load rate and hoisting quality qualification rate control lower limit of a main ...  
WO/2021/036597A1
A robot for intelligently monitoring and evaluating a dangerous gas source in unsealing a closed tunnel of a coal mine and a monitoring and evaluation method are disclosed. The robot comprises a control system (1), a crawler drive system...  
WO/2021/027128A1
A shaft inspection system and a steel wire rope moving device thereof. The moving device comprises steel wire rope moving tracks (2) and moving mechanisms. Each moving mechanism comprises a housing (5), a driving motor, and several movin...  
WO/2021/027292A1
A roof deformation high precision monitoring and early warning system, comprising explosion-proof optical fibre sensors (6), a sensor integration apparatus, a signal conversion apparatus, a data transmission apparatus and a data processi...  
WO/2021/027130A1
A rail synchronous moving device for a wellbore inspection system and a control method therefor. Said moving device comprises an upper moving rail, a lower moving rail, an upper steel wire rope moving device, a lower steel wire rope movi...  
WO/2021/024196A1
The invention relates to a forced ventilation installation (1) with relays to provide ventilation of multiple underground working faces, based on the interposition of a plenum (3) between one or more primary lines (2) supplying outside a...  
WO/2021/018256A1
Provided is a fault monitoring system for a mine shaft, comprising an acquisition terminal, a transmission terminal, and a ground monitoring terminal, wherein the acquisition terminal is mainly used to acquire required data in the mine s...  
WO/2021/013186A1
A test device for simulating earth-filling and grouting, comprising a grouting system (1), a test bench cavity (2), a bottom plate (3), and an information monitoring device (4). The grouting system (1) is connected to the test bench cavi...  
WO/2021/008212A1
A high-pressure water-powered precise coal crushing and filling mining method in an inclined coal seam, comprising a coal crushing system, a transportation system and a pipeline filling system. High-pressure water is used as power to gen...  
WO/2021/007960A1
Provided is a rational width determination method for a gob-side entry driving narrow coal pillar based on crack evolution. The method comprises five steps of: observing roadway deformation and coal pillar crack distribution characterist...  
WO/2021/005174A1
The present invention relates to equipment (6) for mounting a mucking pipeline (1) for a tunneling machine comprising: - a first support (10), configured to receive a first section (3) of the mucking pipeline (1), a second support (20) r...  
WO/2021/001783A1
A method of transporting emulsion explosive vertically includes feeding emulsion explosive into a vertically extending conduit, onto a support member that is located in the conduit such that emulsion explosive is supported on the support...  
WO/2020/257877A1
The invention relates to a method of monitoring the movement of an ore body (202) resulting from blasting, the method comprising: positioning a plurality of blast movement monitors (206) in a blast zone in the ore body (202), each of the...  
WO/2020/258589A1
A method for the inversion calculation of coal seam gas parameters by rapid measurement while drilling, which relates to the technical field of coal mine geology and safety. Problems in which the number of coal seam gas parameters and ou...  
WO/2020/253308A1
A human-machine interaction behavior security monitoring and forewarning method for underground belt transportation-related personnel, comprising positioning a location of a belt in a video on the basis of a camera calibration principle,...  
WO/2020/244136A1
Disclosed is a water drainage and dust removal device for a gas extraction pipeline, comprising: a gas collection mechanism, a dust removal mechanism, and a water drainage and dust removal mechanism (7). The gas collection mechanism comp...  
WO/2020/243908A1
A vehicle-mounted system for a tunnel construction vehicle, comprising: a vehicle-mounted collection apparatus (11), a vehicle-mounted terminal (12) and a vehicle-mounted micro base station (13), wherein the vehicle-mounted collection ap...  
WO/2020/235996A1
A communication and navigation system for allowing a user to communicate and navigate undergrounds, wherein said system comprises a gateway communication node arranged for providing communication between an external communication network...  
WO/2020/228189A1
A generation system and method for a high-precision three-dimensional navigation map of a fully mechanized mining surface, applicable to use in the technical field of unmanned mining. The generation system comprises a channel wave seismo...  
WO/2020/228380A1
Provided is a vehicle-mounted tunnel collapse monitoring and early-warning system, comprising a movable vehicle. The movable vehicle carries a tunnel face monitoring module, a data storage module and a processor. The system can perform f...  
WO/2020/224223A1
An anchor rod for surrounding rock support and instability monitoring, relating to the technical field of coal mine production safety. The anchor rod comprises an anchor rod body and a support plate (1). The anchor rod body has a two-lay...  
WO/2020/215525A1
Provided is a temporary isolation wall with double-layer air bags for closed wind path roadway of underground coal mine, and belongs to the technical field of prevention for coal self-combustion in underground coal mines. The temporary i...  
WO/2020/215521A1
Disclosed is a binary composite fluid-based gas treatment method for steeply inclined extra-thick coal seam. Said method comprises: first using a cleaning fracturing fluid system and a micro-emulsion as a binary composite fluid; then inj...  
WO/2020/213883A1
The present invention relates to a freezing prevention fluid channel system for a tunnel and an installation and, more specifically, to a freezing prevention fluid channel system for a tunnel and an installation, wherein an induction pip...  
WO/2020/199546A1
A pressed coal filling mining system and process for an end slope of an open pit. The mining system comprises a tunneling machine (1), a mechanical arm (12), a filling pump (7), a filling pipeline (5), and a solenoid valve (16). The mini...  
WO/2020/198869A1
Disclosed are vehicles used in transporting coarse ore in a mine and systems using the same. The vehicles include a drive mechanism for moving the vehicle along a surface; an inclinable conveyor positioned atop the drive mechanism for mo...  
WO/2020/191507A1
A safety helmet comprising: a cap, to cover the head of a person; a brim, which surrounds the entire perimeter of the lower part of the cap; and a peak, corresponding to an extension of the brim at the frontal part of the cap; where the ...  
WO/2020/197374A1
The utility model consists of the creation of mobile devices that are easy to transport and equipped (shovel, axe, crowbar, fireman's suit, first-aid kit, among others), and that carry fire extinguishers whose generation of fire-fighting...  
WO/2020/191805A1
The present application belongs to the technical field of explosion suppression of coal-bed gas, and discloses a compound explosion suppressor for suppressing explosion of a low-concentration coalbed gas and a preparation method thereof....  
WO/2020/190244A1
The invention is a new air door (1), to be used in the underground mines and similar enterprises, for sending required amount of air in the required area in the underground mine when there is no transportation, for providing easy directi...  
WO/2019/172753A8
A method and sensor system for monitoring in time a geometric property of a gasket (32, 34) that sealingly interconnects two structural members (20, 21) of a subterraneous or immersed tunnel (10). The system includes a sensor (42) for me...  
WO/2020/186794A1
Disclosed is a vertical magnetic suspension air blower device for a mine. The air blower device comprises an outer barrel (1), an air inlet (12) vertically provided in the top of an inner cavity of the outer barrel, an air outlet (21) ve...  
WO/2020/185078A1
Passive air purifying apparatus for along the roadside, comprising at least one inlet, and at least one outlet and an air duct connecting the at least one inlet with the at least one outlet, wherein the at least one inlet is positioned a...  
WO/2020/181672A1
Disclosed is an apparatus for protecting interference between a hydraulic support and a shearer cutting part. The apparatus comprises plurality of dustproof boxes uniformly fixedly arranged on the surface of the side of the traction part...  
WO/2020/177930A1
The present invention pertains to a method for monitoring operation of a mining machine unit (30), particularly of a longwall mining system (10), having a shield unit (32) connected to a material removing unit (12) by means of an actuato...  
WO/2020/172703A1
The present invention relates to a mining system including a continuous miner. The continuous miner mines material and includes a miner navigation system. The mining system further includes a flexible conveyor system for receiving the mi...  
WO/2020/165828A1
The present invention relates to a barrier assembly for use in protection of personnel at worksites and/or residential areas from escapes of gas. More particularly, this invention relates to a barrier assembly for controlling the lateral...  
WO/2020/151208A1
Provided is a pressure-relief anti-outburst drilling machine, comprising a drill rod (1), a motor (6) driving the drill rod (1) to rotate and a drill bit (7) arranged at the end of the drill rod (1), an air inlet channel (2) and a pressu...  
WO/2020/151206A1
A flow guide drill pipe, comprising a pipe body (1), the pipe body (1) having disposed therein an air inlet channel (2) and a pressure relief channel (3) along an extension direction of the pipe body (1), the pressure relief channel (3) ...  
WO/2020/151207A1
A coordinative extraction and pressure relief method for a high confined water high gas coal seam group. The method comprises: by forming a vertical drill hole (6) and forming, in the vertical drill hole (6), coal seam drill holes (7) co...  

Matches 1 - 50 out of 6,946