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Matches 1 - 50 out of 6,047

Document Document Title
WO/2019/149146A1
A grading method of mines/mining areas for water-preserved mining, comprising: using a mine as a calculating unit to calculate the ton-coal water resource amount, and dividing the mine in a study area into different types according to th...  
WO/2019/149354A1
A heading machine includes first and second rotating cutting heads having respectively an axis of rotation extending substantially in a longitudinal direction of the machine, a first cutting roller having an axis of rotation extending su...  
WO/2019/148788A1
A method for preventing rock bursts by means of active support reinforcement and active pressure relief: A. evaluating the level of rock burst-proneness by using a method of a comprehensive index: determining areas to be normal hazard zo...  
WO/2019/140812A1
A mining system and method for a single steeply-inclined thick coal seam coal, wherein a transport chute (2) is constructed along a coal seam floor (1), and a production system is formed with mountains on both sides of a mining area. In ...  
WO/2019/140813A1
A roadway forming method by roadway widening and tunneling and filling a gangue paste in a thick coal seam, comprising: firstly designing the width of a packwall (2) and the width of a new roadway to be tunneled (1) according to the geol...  
WO/2019/136511A1
The current invention relates to mining systems and mine planning and in particular, to operating a mine that automatically updates a mine plan. The mining system directs operation of mining equipment within a mine based on a mine plan t...  
WO/2019/134220A1
A gas production method and system for natural gas hydrate exploitation. The gas production method uses the gas lift effect of methane gas released by decomposition of a natural gas hydrate to transport gas hydrate from the bottom of a p...  
WO/2019/119035A1
The present invention relates to a density tracer assembly, the density tracer assembly includes a density tracer including a high-density component having a density of about 7g/cc or higher. A radio frequency (RF) transmitter is borne b...  
WO/2019/125297A1
The present invention relates to a method for 1 for controlling transmission of data in a data communication network (220), the transmission of data being a transmission of data between a mining and/or construction machine (100) and a ne...  
WO/2019/120606A1
The invention relates to a self-propelled ground milling machine (1), particularly a road miller, stabilizer or recycler, comprising a machine frame (3) borne by travelling mechanisms (2), a ground milling device (4) mounted on the machi...  
WO/2019/115003A1
A self-propelled ground milling machine (1), in particular a road milling machine, comprising a machine frame (3) borne by driving devices (2), a drive motor (4) arranged on the machine frame, a manoeuvring platform (5) arranged on the m...  
WO/2019/112488A1
The invention relates to integrated systems and methods for planning the layout of oil fields. In the claimed method, initial data is generated, well stream gathering centres are placed on a map of well pads according to a specific algor...  
WO/2019/109577A1
A cutting unit of a shearer, provided with double-speed rollers. A motor drive portion comprises a left cutting motor (1-1) and a right cutting motor (1-2) that are disposed in a cutting unit box body (1-3), and the motor drive portion i...  
WO/2019/109601A1
A coal mining method applying alternately arranged long and short faces. The method comprises: arranging long and short working faces alternately in a mining region of a mine; setting a width of the short working faces (3) according to t...  
WO/2019/111304A1
Provided is a rock drilling device that is configured so that a main component member of the rock drilling device can perform a variety of operations such as a swinging operation, a horizontal revolving operation, an omnidirectional osci...  
WO/2019/109602A1
A short-face coal-pillar-free mining method having zero gangue discharge, applied to zero discharge gangue processing in a mine. The method comprises: selecting, according to actual scenarios of a mine, a region near a mine shaft, and ar...  
WO/2019/109535A1
Disclosed is a clean and efficient coal mining method, applicable to the field of solid mine waste processing. The method comprises: setting the width of short section work faces (11, 12) according to an amount of solid waste discharged ...  
WO/2019/104368A1
A mine safety apparatus that records movement data of a scene, visual images of the scene and correlates the movement data with the visual images. The apparatus comprises: a slope monitoring device that records location data in the scene...  
WO/2019/105967A1
This disclosure relate to a pick tool for road milling or mining. The pick tool comprises a tip assembly coupled to a tool body. The tip assembly comprises a shaped cutter supported by a bolster, a first end of the bolster being connecte...  
WO/2019/105582A1
The invention relates to a highly wear-resistant cutter tip body (19), comprising a material having diamond particles or monocrystalline diamond structures, in particular a PCD, CVD or NPD material, having a cutting top side (22) and a m...  
WO/2019/100906A1
A downward filling mining method for an extra-thick coal seam, comprising the following steps: according to a thickness of 2.5-3.5 m, dividing an extra-thick coal seam into complete filling layers (3) and partial filling layers (4), whic...  
WO/2019/091048A1
Provided is a "five maps-three zones-two sub-areas" water-preserved coal mining method. The method comprises: analyzing data indexes in mining area engineering and hydrogeological data; determining an overlying strata type sub-area map, ...  
WO/2019/072542A1
In a tool (01) for loosening soil, in particular for loosening a seabed, having an axle (02) and having an outer body (04) rotatably mounted on the axle (02) and forming, with the axle (02), an annular space (28) for receiving a lubrican...  
WO/2019/062283A1
A method for determining the feasibility of non-pillar gob-side roof-caving roadway formation, comprising: step I, determining an immediate roof thickness MZ and a burial depth W, and calculating a roadway gob-side lateral hanging roof l...  
WO/2019/061672A1
An ore mining and dressing integrated ship (1), comprising: a ship body, the ship body comprising a deck, a hull, and a cabin (12) inside the hull; a power system (34) disposed on a stern and used for providing power for the proceeding o...  
WO/2019/063088A1
A cutting drum for a borer-type continuous miner and in particular, although not exclusively, to a bottom cutting drum mountable immediately behind forwardmost primary cutting rotors. The cutting drum comprises a plurality of material tr...  
WO/2019/051569A1
The method is applicable in difficult mining conditions such as shaft pillars, combined mining and mining under engineering facilities. It comprises driving a haulage level (3) on a rock, under and sideways to a mining block (1); driving...  
WO/2019/053212A1
The invention relates to a mobile conveyor bridge system (1) for transporting conveyed material, comprising: a bridge (2) having a conveyor belt (3) along a main axis of extent (X), the bridge (2) being arranged on a plurality of running...  
WO/2019/048094A1
A mining or construction vehicle (10) comprising an extendable boom (12) comprised of a first and a second telescopic section (13,14) extending in a longitudinal direction (D1), wherein the first telescopic section (13) is arranged to be...  
WO/2019/029557A1
Disclosed is a comprehensive vertical-lifting drum shearer without a rocker arm suitable for mining a medium-thick long wall coal seam having a coal seam dip angle of less than 30 degrees and a medium-hard or hard coal quality. The compr...  
WO/2019/022021A1
Provided is a hydraulic hammering device with which it is possible to achieve both an auto-stroke mechanism and an idling strike prevention mechanism with a simple circuit configuration and to easily select either of these mechanisms. Th...  
WO/2019/020545A1
A super-hard tip for a super-hard bit comprises a super-hard volume (102) and a substrate (112). The super-hard volume is sinter-joined to a distal end of the substrate at a join boundary (105), opposite a proximal end of the substrate c...  
WO/2019/018139A1
Artificially directing a plurality of space-borne natural bodies to a target accretion region, such that gravitational forces amongst the plurality of space-borne natural bodies within the target accretion region produces an agglomerated...  
WO/2019/018531A1
A milling machine for milling a surface of a roadway includes a frame and a milling assembly having a cutter drum that is mounted for rotation with respect to the frame. The cutter drum has a drive shaft on which a sheave is mounted. A p...  
WO/2019/015362A1
Disclosed are a shallow seam water conservation mining method and an application thereof. According to the method, in a working face, a plurality of pre-bored tunnels is vertically or obliquely demarcated from a main transport tunnel (1)...  
WO/2019/010527A1
A mining pick (1000) comprising a body (1100) defining a cutting element support portion (1150) configured for supporting a cutting element (1400). The mining pick (1000) also comprises a sacrificial member (1200) mounted on mounting for...  
WO/2019/007147A1
An advanced seismic source detection-based coal shearer automatic height adjustment device is provided. The device comprises a coal shearer side signal collection device, a workface side signal collection device (2), and a height adjustm...  
WO/2019/007439A1
An automatic height adjusting apparatus and method for a shearer based on advanced detection of a shearer seismic source. The apparatus comprises a shearer-side signal acquisition device, a workface-side signal acquisition device (2), an...  
WO/2019/004665A1
The present invention relates to equipment and a method for cutting bedrock at the correct position by means of a diamond wire-saw, and more particularly, to equipment and a method for cutting bedrock at the correct position by means of ...  
WO/2019/004517A1
The present invention relates to a hydraulic pressure bedrock cutting method using slots formed in a lower end of a packer and at intervals, by the pressure of water injected after multiple packers have been connected at predetermined in...  
WO/2018/234390A1
The invention relates to a bucket wheel excavator (1) for continuously excavating material (5), in particular in open-cast mining, having a bucket wheel (2) which can be rotated about a central axis (M) and which has a plurality of shove...  
WO/2018/233721A1
A boring and positioning system for constructing a winding underpass comprises a boring module, an intelligent total station module, a reflective surface mechanism (2), a communication and control module, a strapdown inertial navigation ...  
WO/2018/233390A1
A boring and positioning system for constructing a winding underpass comprises a boring module, an intelligent total station module, a reflective surface device, a communication and control module, a strapdown inertial navigation module ...  
WO/2018/218378A1
The invention relates to distension techniques for neutralising the rock explosions that often occur during the construction of underground works located in environments exposed to high stress fields, such as caverns, main tunnels or bra...  
WO/2018/219361A1
A method of sensing the absolute position and orientation of a coal mining machine (1). In a three-part mining-equipment set primarily composed of a coal mining machine (1), a scraper conveyor (2), and hydraulic supports (3), the absolut...  
WO/2018/215019A1
The invention relates to a vertical conveyor system (1) for mining or tunnelling, comprising an endless conveyor belt (2) guided between an upper delivery station (7) and a lower delivery station (8). A plurality of wheels (4, 5) facing ...  
WO/2018/213706A1
A cutter assembly for a tunnel boring machine includes first and second housing mounts each having a plate portion, an abutment flange, and a plurality of spaced seats. A cutter ring assembly is mountable in the housings and includes two...  
WO/2018/204973A1
A vertical or block chain connector (10) for linking between two closed chain links (15) comprises a lower element (12) and an upper element (14) configured to engage with the lower element (12) to form the chain connector in an assemble...  
WO/2018/200455A1
Methods for using a single explosive material whose specific volume energy can be controlled for use in at least a segment of a borehole. Alternatively, or additionally, methods for using mixtures of one or more explosive materials and o...  
WO/2018/197154A1
A cutter (127) for a cutting unit (700) used in cutting apparatus (100) suitable for creating tunnels or subterranean roadways. The cutter (127) includes: a disc body (711) having an underside (732), an upper side (730) arranged substant...  

Matches 1 - 50 out of 6,047