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44results about How to "Ease difficulty" patented technology

Support method for bolt-grouting composite crushing dynamic-pressure roadway soft rock roof by high-pre-stressed anchor cable

The invention discloses a support method for bolt-grouting a composite crushing dynamic-pressure roadway soft rock roof by a high-pre-stressed anchor cable. The support method comprises the following steps of: after excavating a roadway, keeping up with a roadway driving head for drilling a deep part in a roadway roof, sending a deep hole camera shooting detecting instrument to the bottom of a drilled hole, recording inner wall lithological characters, fracture spacing and crushing region thickness range of surrounding rocks of different depths; keeping up with the roadway driving head, firstly drilling grouted holes in the surfaces of surrounding rocks, installing grouting pipes, then spraying thin-layer concrete on the surfaces of the surrounding rocks of the roadway for closing the surfaces of the surrounding rocks of the roadway to prevent slurry from overflowing; grouting the insides of the surrounding rocks through the grouting pipes, after slurry is solidified, drilling anchor cable holes in the surfaces of the surrounding rocks of the roadway, and when the depths of the anchor cable holes exceed the range of a crushing region, installing an anchor cable for reinforcing. The support method has the advantages of being simple in operation, bringing convenience for construction, saving secondary or multi-time support procedure, lowering the cost, saving the time and manpower, increasing the working efficiency, realizing dual-anchoring, and achieving the strong support effect, and is especially suitable for the roof which is difficult to support under the condition of dynamic pressure.
Owner:SHANDONG UNIV OF SCI & TECH

A dynamic fault tree quantitative analysis method based on probability model detection

ActiveCN109919181AEase difficultyLighten the heavy workloadCharacter and pattern recognitionComplex mathematical operationsContinuous-time Markov chainMarkov chain
The invention discloses a dynamic fault tree quantitative analysis method based on probability model detection, and belongs to the technical field of dynamic fault tree quantitative analysis. The method includes: Firstly, allowing the dynamic fault tree to subjected to formalized description; converting the logic gate into a corresponding continuous time Markov chain model; allowing the connectionrelationships among the logic gates to be in one-to-one correspondence to the CTMC models; combining the continuous time Markov chain and the continuous time Markov chain to automatically generate PRISM codes, defining a CSL attribute specification formula, and inputting the CSL formula and the PRISM codes into a tool to obtain a quantitative analysis result. According to the method, hierarchicaldecomposition and module synchronization of the PRISM are combined; A whole dynamic fault tree is converted into a limited number of modules, a single Markov chain model is automatically converted into PRISM codes through an automatic conversion algorithm, the fault occurrence probability of a top event is automatically verified, and synchronization between the modules and commands is achieved through a synchronization mechanism.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Quantum error correction coding method applicable to high-voltage overhead power lines

The invention discloses a quantum error correction coding method applicable to high-voltage overhead power lines. Quantum equipment is respectively arranged in converting stations at two ends of an electric power overhead line, one end of the electric power overhead line is a sending end, the other end of the electric power overhead line is a receiving end, and the sending end and the receiving end adopt a [5, 1] stable disc quantum error correction coding technology. The quantum error correction coding method applicable to the high-voltage overhead power lines carries out system analysis in an electric system for the first time, chooses the quantum error correction of coding technology which is applicable to the environment of electric power aerial optical cables, solves the problems of signal error detecting and recovery in quantum noise caused by an electric power hyperbaric environment, and explores a scheme applicable to long-distance quantum signal encoding and decoding among the converting stations. The quantum error correction of coding method applicable to the high-voltage overhead power lines has the advantages of providing convenience for applying a quantum communication technology to the electric system.
Owner:CHINA ELECTRIC POWER RES INST +2

Ore distributing and mixing system based on ports

The invention discloses an ore distributing and mixing system based on ports. The system is characterized in that a feeding system and a stacking system are arranged on the ground, and a distributingsystem is arranged below the ground; the feeding system comprises a belt conveyor feeding system and/or an automobile feeding system; the belt conveyor feeding system and/or the automobile feeding system is connected with an iron ore raw material storage system of the ports; the distributing system comprises a plurality of distributing bins, a belt conveyor and a PLC, wherein the plurality of distributing bins are located below the ground plane, each distributing bin is provided with a feeding machine and an electronic belt scale, the feeding machines are arranged below the distributing bins,the feeding ports of the feeding machines are connected with the discharging ports of the distributing bins, the electronic belt scales are arranged below the discharge ports of the feeding machines,the belt conveyor is arranged below the discharging ends of all the electronic belt scales, and the feeding machines, the electronic belt scales are electrically connected with the PCL correspondingly; and the stacking system comprises a stacking machine, and the receiving end of the stacking machine is connected with the discharging end of the belt conveying conveyor in the distributing system.
Owner:上海慧安科技股份有限公司

Automatic medicine taking and delivering nurse robot

The invention discloses an automatic medicine taking and delivering nurse robot, and relates to the technical field of medical robots. The robot comprises a robot parent body; the robot parent body is in sliding fit with a robot child body; storage racks are in sliding fit with moving racks; connecting springs are fixedly connected between the storage racks and the movable racks; the storage racks are meshed and matched with sliding pieces; clamping plates are in threaded running fit with connecting rods; an electromagnetic coil and a armature attract each other; and a placing frame is in sliding fit with the base. According to the robot, a nurse puts medicine into each storage chamber in advance, a controller controls the robot parent body to move to the position of the robot child body, a second electric telescopic adjusting rod is controlled, the electromagnetic coil is controlled to be powered on, a first electric telescopic adjusting rod is reversely started, so that storage shells in each storage chamber are pulled out, a servo motor is started to drive the adjacent clamping plates to synchronously and reversely move to clamp the medicine box, and the first electric telescopic adjusting rod is rotated to drive the clamping plates to place the medicine box into a placing box.
Owner:GUANGHUA LINGANG ENG APPL & TECH R&D (SHANGHAI) CO LTD

Device and treatment method for deep purification treatment of mine water for production

The invention discloses a device and a treatment method for deep purification treatment and reuse of mine water for production, and the device comprises a ground water storage tank, a high-level primary sedimentation water storage regulating tank, a reuse water tank and an underground production water supply system, the ground water storage tank is connected with the high-level primary sedimentation water storage regulating tank through a water pipe; the high-level primary sedimentation water storage regulating tank is connected with a multi-medium filter through a purification device pipeline, the multi-medium filter is connected to the underground production water supply system through a membrane biological reaction tank and the reuse water tank, and an automatic dosing device is arranged on a water delivery pipe. By additionally arranging the automatic dosing device and an automatic control system, the dosing amount is adjusted according to the change of the water inlet flow, the dosage of a medicament is accurately controlled, and the flocculation effect is exerted to the maximum extent. And the MBR technology is utilized, so that the solid-liquid separation efficiency is greatly improved. Purified mine water is disinfected in the mode that a generator is adopted to prepare sodium hypochlorite on site, the operation cost is reduced, accurate medicine adding is achieved, thedisinfection effect is improved, and the mine water returns to an underground production system again.
Owner:GUIZHOU PANJIANG REFINED COAL

Support method for bolt-grouting composite crushing dynamic-pressure roadway soft rock roof by high-pre-stressed anchor cable

The invention discloses a support method for bolt-grouting a composite crushing dynamic-pressure roadway soft rock roof by a high-pre-stressed anchor cable. The support method comprises the following steps of: after excavating a roadway, keeping up with a roadway driving head for drilling a deep part in a roadway roof, sending a deep hole camera shooting detecting instrument to the bottom of a drilled hole, recording inner wall lithological characters, fracture spacing and crushing region thickness range of surrounding rocks of different depths; keeping up with the roadway driving head, firstly drilling grouted holes in the surfaces of surrounding rocks, installing grouting pipes, then spraying thin-layer concrete on the surfaces of the surrounding rocks of the roadway for closing the surfaces of the surrounding rocks of the roadway to prevent slurry from overflowing; grouting the insides of the surrounding rocks through the grouting pipes, after slurry is solidified, drilling anchor cable holes in the surfaces of the surrounding rocks of the roadway, and when the depths of the anchor cable holes exceed the range of a crushing region, installing an anchor cable for reinforcing. The support method has the advantages of being simple in operation, bringing convenience for construction, saving secondary or multi-time support procedure, lowering the cost, saving the time and manpower, increasing the working efficiency, realizing dual-anchoring, and achieving the strong support effect, and is especially suitable for the roof which is difficult to support under the condition of dynamic pressure.
Owner:SHANDONG UNIV OF SCI & TECH

Quantum error correction coding method applicable to high-voltage overhead power lines

The invention discloses a quantum error correction coding method applicable to high-voltage overhead power lines. Quantum equipment is respectively arranged in converting stations at two ends of an electric power overhead line, one end of the electric power overhead line is a sending end, the other end of the electric power overhead line is a receiving end, and the sending end and the receiving end adopt a [5, 1] stable disc quantum error correction coding technology. The quantum error correction coding method applicable to the high-voltage overhead power lines carries out system analysis in an electric system for the first time, chooses the quantum error correction of coding technology which is applicable to the environment of electric power aerial optical cables, solves the problems of signal error detecting and recovery in quantum noise caused by an electric power hyperbaric environment, and explores a scheme applicable to long-distance quantum signal encoding and decoding among the converting stations. The quantum error correction of coding method applicable to the high-voltage overhead power lines has the advantages of providing convenience for applying a quantum communication technology to the electric system.
Owner:CHINA ELECTRIC POWER RES INST +2

Acidic low-level radioactive waste liquid treatment method and system, and nuclear fuel post-treatment plant system

The invention discloses an acidic low-level radioactive waste liquid treatment method. The method comprises the following steps: carrying out multi-stage acid separation treatment on an acidic low-level radioactive waste liquid, and separating out concentrated nitric acid to obtain light waste liquid; and carrying out multi-stage precision treatment on the light waste liquid, and separating nuclides to obtain a purified liquid. The invention further discloses an acidic low-level radioactive waste liquid treatment system.The treatment system comprises an acid treatment device and a fine treatment device, the acid treatment device is used for carrying out multi-stage acid separation treatment on the acidic low-level radioactive waste liquid, concentrated nitric acid is separated out, and light waste liquid is obtained; and the fine treatment device is connected with the acid treatment device and is used for separating nuclides in the light waste liquid to obtain purified liquid. The invention further discloses a nuclear fuel post-treatment plant system. Radionuclide in the acidic low-level radioactive waste liquid can be effectively removed, nitric acid can be effectively separated, the purified liquid with low salt content is obtained, the emission requirement can be met, pollution to the environment is avoided, the use amount of fresh nitric acid suitable for nuclear fuel post-treatment plants can be reduced, and the cost is reduced.
Owner:CHINA NUCLEAR POWER ENG CO LTD
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