2419results about "Underground transport" patented technology

The invention relates to an intelligent type full-automatic combined coal mining system, which comprises a coal mining and loading device, a conveying device, a supporting device, and an equipment train, and is mounted in the working face and crossheading in the coal mine well. The coal mining and loading device is mounted on the conveying device, the coal conveying port of the conveying device is conveyed to the outside of the well or the coal bunker through a belt type conveyor in the crossheading, the supporting device is arranged behind the conveying device for supporting the top plate of the coal seam and linking with the conveying device, the equipment train comprises a central control chamber of a central control equipment, a starter, a power device, and a lifesaving cabin, the central control equipment monitors and controls the coordination operation of the devices, the equipment train, and the power device of the equipment train, the power device provide power source for the devices and the equipment train, and the equipment train moves freely in the crossheading with the feeding of the working faces. The invention improves system complete ability and execution efficiency, and has strong function, high intelligent degree, high safety, high production efficiency, and the like.

There is disclosed a wheeled vehicle (10) adapted to be driven in a primary direction or an opposite secondary direction. The vehicle has a vehicle platform (32), and a group of vehicle components rotatably mounted on the platform which are rotatable as a group through 180 degrees relative to the platform. The group of components includes a driver's seat (38), steering wheel (40), foot pedals (42) and instrument console (44). Rotation of the group of components enables the driver's seat (and hence the driver) to face in the primary direction or secondary direction.

The invention relates to a long-wall coal method, which can be used in stable coal bed, rigid top plate, non-broken incline middle-thickness coal bed, and thick coal bed layered long-wall method. Wherein, it arranges hydraulic support, scrape transporter, and roller coal machine at the long-wall working surface; arranges groove transporter and flexible band transporter at the transport channel; the working surface has ultra long length, which is two times of integrated coal surface; it uses two coal machines on one scrape transporter, to scrape the upper half surface and the lower half surface; and it can arrange middle channel at the middle of integrated surface as the transport channel; and arranges scrape transporters at the upper and lower half working surfaces. The invention has high efficiency, while it can reduce the digging rate and improve the resource recycle rate.

The invention discloses a method for arranging roadways on a coal-pillar-free stope. Particularly, the method comprises the following steps: two roadways are arranged on each working face, one is an excavating roadway, and the other is a gob-side retained or excavated roadway on an upper working face; before a present working face is stopped, a roadway and a cut are excavated in advance on a supersedure working face adjacent to the present working face; the cut is connected with the excavating roadway of the present working face; and the excavating roadway and the cut of the supersedure working face serve as the boundary return airway of the present working face during gob-side roadway retaining, and serve as the construction pathway for the gob-side excavated roadway during gob-side entry driving. Therefore, through the adoption of the method, mining without coal pillars is achieved and a two-in and one-out Y+L type ventilation system is formed. In the method, the excavating roadway and the cut of the supersedure working face serve as the return airway of the present working face and one roadway of the supersedure working face, thereby achieving dual purposes and eliminating the excavating of a roadway; and a pressure peak area is avoided, so that more coal pillars can be extracted, the problem of transfinite methane gas is solved, the excavation tight relationship is relieved, and the method can be widely applied to coal mines, metallurgic mines and other industries.

Disclosed is a fully-automatic underground mining transportation system; the fully-automatic underground mining transportation system comprises a dispatching control center used for receiving and storing data and sending out a control instruction so as to carry out operation dispatching, operation monitoring, data management and remote control, a vehicle-mounted automatic driving system which is arranged in an engineering vehicle and is used for receiving and analyzing instructions and vehicle tracking, identifying minerals, barriers and surrounding engineering vehicles, and cooperating with the dispatching control center to achieve multi-vehicle collaborative operation, and a vehicle-ground communication system which is coupled between the dispatching control center and the vehicle-mounted automatic driving system to establish a bidirectional high-speed data transmission channel between the dispatching control center and the vehicle-mounted automatic driving system, and transmits theroad side monitoring data to the dispatching control center. According to the fully-automatic underground mining transportation system, by arranging the dispatching control center, the vehicle-mountedautomatic driving system and the vehicle-mounted communication system, the effect of automatic control mining and transportation can be effectively realized.

A method of driving mine vehicles in a mine, and a transport system. A plurality of mine vehicles is arranged in succession and driven in convoy between working areas. A master vehicle in the convoy is driven manually, and slave vehicles follow the master, provided with no mechanical connection. In the working areas, the convoy is disassembled, since single vehicles are each driven separately. When assigned tasks in the working areas have been completed, the vehicles are reassembled into a convoy so as to be driven to a next working area.

An extraction device, particularly for mining, having two drive stations and a drive chain which extends between the sprockets thereof. So that hanging chain or chain wear to a conveyor chain, in the case of a conveyor device, or to a plow chain, in the case of a plow device, can be detected, magnetic sensor units for detecting at least one chain condition of the drive chain are provided, wherein each sensor unit includes a transmitter, which is formed by a static or dynamic magnetic field generator, and a detector field, which is provided with a plurality of magnetic field detectors, as a detector, the detector and the transmitter being arranged to the side of a passage for the run of the drive chain that is to be scanned. The invention also relates to a method for controlling an extraction device for preventing hanging chain.

A mine transportation management system capable of reducing cost by reducing the number of transportation vehicles is provided. For this purpose, the system includes a plurality of self-propelled vehicles and a plurality of vessels each having a communication section, and each being identifiable, which are connectable to and separable from each other. A loading machine having a communication section, which loads an object into at least one of the vessels. A management center, which has a communication section, selects a vessel to be transported and selects a self-propelled vehicle for transporting the selected vessel based on a transportation demand signal from a processing facility, and transmits a transportation command signal to the selected self-propelled vehicle to connect to the selected vessel and to travel to the processing facility.

The invention relates to a support-type comprehensive tunneler which comprises a non-tracked tunneler, a tunneler chassis, a left hydraulic support, a right hydraulic support, a drilling rig and scraper conveyors, wherein the tunneler is arranged on the tunneler chassis, and two advancing jacks are arranged on the tunneler chassis; the other ends of the two advancing jacks are respectively connected with the left hydraulic support and the right hydraulic support, and the two sides of the tunneler chassis are respectively provided with a lateral pushing oil cylinder; forestopes of the left andright hydraulic supports are respectively provided with a group of metal mesh storages, and the tail of a main top beam of the support is hung with the drilling rig; the tail of a first scraper conveyor is arranged on a spade plate of the tunneler, and the head of the first scraper conveyor and the tail of a second scraper conveyor are overlapped; and the head of the second scraper conveyor and the tail of a belt loader are overlapped, and sleds are arranged at the back of the two hydraulic supports. The tunneler has the advantage that the drilling support and the coal cutting of the tunnelerare simultaneously carried out, and also has the automatic lapping function, thus reducing labor intensity and increasing the coal mining efficiency by over 4 times.

An electric drive system is provided for use in a vehicle that is operated in environments with stringent emissions and ventilation regulations. In one embodiment, the electric drive system comprises a motor capable of propelling the vehicle and an energy storage device coupled to the motor, and selectively couplable to a catenary line, wherein the catenary line is capable of supplying electrical power to the vehicle and to the energy storage device. Additionally, the vehicle includes a mining device that is operable to be powered by energy from one or more of the catenary line and the energy storage device.

The tunnel pipe trasporting installation vehicle is formed from tractor truck, pipe-carrying vehicle and electric and hydraulic control system. The tractor truck in cludes chassis, driven wheel groupand driving wheel group, power device and speed reducer, cabin, track-cleaning device, warning signal light and headlight; the pipe-carrying vehicle includes front wheel group, front platform, pipe-carrying vehicle beam, lifting wheel group, lifting tyre group, supporting device, pipe-carrying carriage on the pipe-carrying vehicle beam and pipe-carrying lifting device; the described hydraulic control system includes tractor truck static pressure transmission system and hydraulic control system of pipe-carrying vehicle. Said vehicle is compact in structure, stable in operation, can transport, lift and install large-diameter PCCP pipe.

The invention discloses a large-scale steel pipe car, which comprises the following parts: main beam, longitude walking rack, rotary rack, supporting leg, supporting arm and adjusting support. The car can form a multifunctional mechanic construction platform in the steel making, transportation, assembling, surface antiseptic, detecting and concrete casting course, which realizes the mechanic automatic operation in the finite tunnel.

The invention provides a method for mining coal of a steeply inclined thin seam on the basis of learning from a long-hole blasting coal mining method and a wire saw coal mining method, which is a long-hole blasting and wire saw coal mining method and relates to underground coal mining. The method comprises the following steps: long boreholes are arranged in a direction which is parallel to the cross pitch of the coal seam for coal blasting; after finishing blasting a work surface, making the coal slip out from a section coal bin and loading the coal for outward transport through a haulage drift; and when blasting to the vicinity of a tailgate through the long boreholes, stopping the blasting and utilizing a wire saw to mine remaining coal. The method has the advantages of no work surface support, rational tunnel arrangement, simple ventilation management, the capacity of realizing unmanned work surface mining, low cost, strong security, high coal mining rate, low worker labor intensity, good social and economic benefits and the like.

A high efficiency fully-mechanized mining process of low coal seam is developed by combining double-unit face mining technology on the basis of comprehensive mechanized coal mining technology of low coal seam, which comprises following steps that two face material roadways and a face sharing conveyance road are parallel arranged, the space between the adjacent roads is used as working faces, the face sharing conveyance in the middle is chosen to be used as a sharing road, and a face coal-winning machine, a face scraper conveyer, and a hydraulic support are evenly arranged on each working face, and the two working faces simultaneously proceed comprehensive mechanized coal mining in parallel. Compared with the comprehensive mechanized coal mining technology, the invention lacks a road, which reduces myriatonne drivage ratio of mines, and saves costs, and the two working faces are simultaneously arranged to produce, which is beneficial for management, can effectively use labor resources, material resources, reduces storage rate of equipment part, and lowers cost input, such as reducing a bridge transfer machine.

The invention discloses a construction method for disassembling of a shield tunneling machine in a narrow and small space. The construction method comprises the following steps that 1, shield bodies of the shield tunneling machine are designed into assembly-type shield bodies; 2, the shield tunneling machine tunnels, arrives and receives; 3, a track beam is mounted, and an electric block is mounted on the track beam; and 4, the shield tunneling machine is disassembled. According to the construction method, ground hoisting holes do not need to be formed, after a shield cutterhead comes out of atunnel, the cutterhead is disassembled, and then a front shield and a middle shield are pushed sequentially through power of the shields to disassemble the front shield and the middle shield; and then a shield tail is pulled away from the tunnel through external arrangement of a jack to be disassembled, by pushing one of the shield bodies, one or two segments are spliced, and the disassembled components of the shield tunneling machine are transported in the mode of disassembling one of the shield bodies.

The present method relates to a method of determining a route for automatically controlling a mobile mining machine. The route is determined computer-aidedly by executing, by a data processing machine configured for generating routes, the following steps of: retrieving an environment model comprising wall location data, receiving from a user at least an input for determining a starting point of the route and an input for determining an end point of the route, determining the route between the starting point and the end point on the basis of the environment model and data concerning properties of the mining machine, wherein the route is determined as route points at least for which position data are calculated, and storing the data determining the route to be used for automatically guiding the mining machine.

The invention relates to the field of coal mine safety, in particular to a distributed optical fiber temperature measurement-based fire early warning method for a belt conveyor. The method comprises the following steps of: dividing a temperature measuring optical fiber into a temperature measuring point, a channel and an area, and processing temperature data measured by the temperature measuring optical fiber by an absolute temperature early warning method, an area relative temperature difference early warning method, an area normal distribution early warning method, a measuring point temperature rise slope early warning method and a measuring point temperature rise variation trend early warning method to acquire a channel threshold early warning characteristic value, an area threshold early warning characteristic value, an area relative temperature early warning characteristic value, an area temperature normal distribution statistical characteristic value, a measuring point threshold early warning characteristic value, a measuring point temperature rise slope early warning characteristic value and a measuring point temperature rise accumulated trend early warning characteristic value; inputting the characteristic values and the measuring point temperature rise accumulated trend early warning characteristic value into a back propagation (BP) neural network model; and outputting a warning coefficient, an early warning coefficient and a safety coefficient by using the BP neural network model.

The invention relates to a comprehensive mining opposite-pull working face coal excavating process for a thin coal bed, comprising the following steps: 1, two working face material lanes and a working face common transporting lane are arranged in parallel, wherein part between two adjacent lanes is a working face, and the middle working face common transporting lane is selected as a common lane; 2, each working face is provided with a working face coal mining machine, a working face scraper transporter and a hydraulic bracket, and two working faces simultaneously carry out comprehensive mining in parallel. In order to leave a channel of the common transporting lane for passing in and out for workers between the hydraulic brackets of the two working faces, the two working faces are staggered with a certain distance. The invention reduces the ten-thousand-ton drivage ratio of a mine, saves the cost, realizes non-coal pole exploitation between the working faces, improves the recovery ratio of resources and increases the yield of the same unit workers by almost one time.

The present invention relates to a novel method of retrieving gas from a gas-containing subterranean formation, the method including digging a mine shaft to reach the subterranean formation; constructing a ventilated underground control center wherein the center includes a computerized control panel, wherein the computerized control panel controls the movements of a hot head device such as a plasma torch, an electro-chemical apparatus, a hydrogenating solvent or heated ceramic particles; a hollow drill pipe; a movable hydraulic shield; a movable resin roof bolting machine; and a movable waste extrusion device; providing mining personnel to the ventilated underground control center; and allowing the mining personnel to operate the computerized control panel wherein they perform the tasks of moving the hot head device into the subterranean formation, recovering the gas, and extruding waste material into a mined-out space of the subterranean formation.

The invention discloses a coal feeder type main shaft bucket standard weight device provided with a weighing device on the existing belt conveyor type coal feeder in mines, without occupying other space. The weighing device comprises: an instantaneous weighing device connected with a conveyer belt, a speed sensor connected with a driven roller and a calculator installed outside a machine; the calculator is connected with an inlet valve of a feed inlet by a signal wire. The instantaneous weighing device comprises: a weighing bridge, a weighing sensor, a weighing roller, and the like; the weighing bridge is in floating mode, which floats up and down along with the material weight change at the upper part of the conveyor belt; the weighing sensor connected with the weighing roller and the speed sensor connected with the driven roller input signals into the calculator for calculation so as to calculate the weight of transported material on the conveyor belt in a period of time. When the bucket standard weight load is reached, the calculator sends out signals to close a feed valve so as to realize continuous and uninterrupted bucket standard weight loading.