745results about "Safety equipments" patented technology

The invention discloses an emergency rescue strategy and system for emergencies in a tunnel, and belongs to the field of intelligent expressways and traffic control intelligence. The method comprises the following steps: acquiring historical emergency data and a historical management and control strategy; preprocessing the historical emergency data and the historical management and control strategy to obtain preprocessed data; acquiring entities, relationships and attributes from the preprocessed data; constructing a knowledge graph according to the entities, the relationships and the attributes; acquiring current emergency information; and obtaining a final emergency rescue scheme from the knowledge graph according to the current emergency information. According to the invention, by constructing the (special) long tunnel emergency rescue knowledge graph, systematic integration and efficient utilization of historical data and experience knowledge are realized, and rapid, accurate and intelligent information support and application services are provided for tunnel management departments in emergency rescue work.

A downhole large-diameter drilling apparatus, comprising a large-diameter drilling-with-casing drill, a large-diameter drilling-with-casing guide drilling system, a collapse body metal detection and demolition system, and a self-moving multifunctional rescue operation cabin, wherein the large-diameter drilling-with-casing drill is configured to efficiently construct a large-diameter horizontal hole to serve as a rescue passage; the large-diameter drilling-with-casing guide drilling system uses a first-stage hole protection mode, a second-stage hole protection mode or a three-stage hole protection mode on the basis of the length of a collapse body and the stratum; the collapse body metal detection and demolition system can perform fine detection and rapid cutting on metal components in the collapse body; and the self-moving multifunctional rescue operation cabin can be configured to assist in obstacle removal at the bottom of a rescue hole while ensuring safety improvement of personnel in the cabin, thereby improving the construction efficiency of rescue drilling.

The invention discloses an automatic grading early warning method and system for underground operation safety. The method comprises the following steps that 1, physical sign parameters and underground environment parameters of a tested person are collected; step 2, establishing an early warning level of personnel signs and an early warning level of environmental parameters; step 3, performing dynamic fusion analysis on the early warning level of the personnel signs and the early warning level of the environmental parameters according to the collected parameter data to obtain a final early warning level; and 4, taking corresponding early warning issuing measures according to the final early warning grade. According to the method, the weight can be calculated according to the deviation degree of each index, each index corresponds to one weight, the accuracy is higher, interference of other grades is avoided, subjective influences are reduced, and the method is more suitable for analysis of various types of indexes.

The invention discloses a stress-displacement roof catastrophe intelligent early warning method, and relates to the technical field of coal mine engineering safety and supporting. The method comprises the following steps: firstly, respectively establishing a stress-time database and a displacement-time database according to a relationship between stress and time of a roof separation layer and a relationship between displacement and time of the roof separation layer, and respectively setting four early warning modules in the corresponding databases; then stress-time and displacement-time are collected in real time through a sensor, and collected data are transmitted to a corresponding data processor; after being processed by the data processor, the data are uploaded to the stress-time database and the displacement-time database, are dynamically matched with the four early warning modules in each database, and then are converted to generate early warning signals for early warning. According to the method, the principle of stress-displacement synchronization is followed, and the accuracy of early warning is remarkably improved through double monitoring means and comprehensive monitoring of the roof separation stress and displacement.

The invention discloses a coal mine underground equipment personnel collaborative safety monitoring and risk early warning method, which comprises the following steps: deploying a sensing network, and collecting and processing personnel data and equipment data; evaluating the health state of the equipment based on the equipment data; cleaning the personnel data and then constructing a trajectory model; performing risk coupling analysis based on the three-dimensional risk identification model to obtain a comprehensive risk value; and performing grading response based on the comprehensive risk value and judging whether to perform model optimization or not. The invention further discloses a coal mine underground equipment personnel collaborative safety monitoring and risk early warning system which comprises a sensing layer, the sensing layer is connected with an analysis layer through a network layer, the analysis layer is connected with an execution layer, and the execution layer is connected with the sensing layer. The invention discloses a coal mine underground equipment personnel collaborative safety monitoring and risk early warning method and system, solves the technical bottlenecks of data splitting, response lag and poor environmental adaptability of a traditional monitoring system, and reduces the accident false alarm rate by more than 35% through spatial coupling analysis.

The invention discloses a mine disaster rescue robot based on multi-modal sensing and intelligent recognition and a mine disaster monitoring method, and relates to the technical field of mine disaster rescue robots. The mine disaster rescue robot based on multi-modal sensing and intelligent recognition mainly comprises an image processing and edge calculation unit, a UWB positioning module, an inertial measurement unit, a laser radar, a binocular depth camera, a thermal imager, a sound sensor, a gas sensor, an RGB camera, a motion control unit and a power supply system. According to the mine disaster rescue robot and the mine disaster monitoring method based on the multi-mode perception and intelligent identification, the positioning precision and the autonomous navigation capability of the rescue robot in a complex mine environment can be improved, and the accuracy and the real-time performance of state judgment of trapped workers are improved.

The invention discloses a tunnel collapse emergency rescue material supply method and system, and relates to the technical field of tunnel collapse emergency rescue, and the method comprises the following steps: in the tunnel construction process, a rescue small-diameter pipeline is arranged from a tunnel face to a secondary lining end along a tunnel primary support surface or an excavation free face; high-precision pressure sensors are installed at the rescue end and the tunnel face end respectively and used for monitoring the pressure change condition in the pipeline in real time, and measurement data of all the pressure sensors are transmitted back to a monitoring center through wireless data transmission or wired optical fibers so as to be analyzed in real time; through the installed pressure sensor, pressure data of the tunnel face end are collected in real time, continuous time sequence data are established, and the collected data are preprocessed. According to the method, the survival probability of trapped persons in collapse accidents can be effectively increased, serious consequences caused by failure of a conveying system are reduced, and the tunnel construction safety and rescue efficiency are remarkably improved.

The invention relates to the technical field of mining oxygen supply regulation, in particular to a mining working face intelligent oxygen supply regulation system which comprises oxygen supply equipment, air purification equipment is arranged on one side of the oxygen supply equipment, one end of the oxygen supply equipment and one end of the air purification equipment are both connected with connecting pipes, and one sides of the two connecting pipes are jointly connected with air hole regulation equipment. And one side of the air hole adjusting equipment is connected with an air supply pipe, and fan equipment is installed at one end of the air supply pipe. Air can be effectively purified through the effect of the purification assembly, disassembly and replacement are convenient, the gas condition in the mine tunnel can be effectively monitored so that whether gas supply is conducted or not can be rapidly controlled, meanwhile, the oxygen content can be controlled, the safety in the mine tunnel is guaranteed, gas can be fully supplied to workers in the mine tunnel, and the working efficiency is improved. And fixed-point oxygen supply can be carried out according to the conditions in the mine tunnel, and the gas quality in the mine tunnel is improved.

The invention discloses a pressurization guarantee cabin for tunnel field command, relates to the technical field of guarantee cabins, and solves the technical problems that in the prior art, movement and walking are inconvenient, and a safety structure for guaranteeing the balance pressure inside and outside a cabin door does not exist. A multi-layer cabin body structure is fixedly installed on the upper wall face of the main machine frame, a peep window is fixedly installed on the front wall face of the multi-layer cabin body structure, and a pressure maintaining porch structure is fixedly installed on the side wall face of the multi-layer cabin body structure. The pressure in the porch pipe and the cabin body is adjusted through the constant pressure machine, internal pressure leakage or external high-pressure gas invasion can be prevented, and the long-term stability of the air pressure environment in the cabin is ensured. The multi-layer cabin body structure enhances the pressure resistance of the cabin body, can bear an external high-pressure or low-pressure environment, and also can prevent accidents such as tunnel collapse from causing physical damage to the structure.

The invention discloses an under-mine environment accurate positioning system based on a UWB technology, and relates to the technical field of data processing and positioning, an underground area is divided into a safe area and a dangerous area by obtaining the structure risk value of each sub-area and combining the structure risk value and the position information of the corresponding sub-area, and the safe area and the dangerous area are accurately positioned. A plurality of rescue robots are arranged in the underground area; acquiring position information of the mobile tag, displaying the position information on an electronic map, generating an air quality coefficient, and dividing the plurality of sub-regions into risk regions and safety regions according to the air quality coefficient; and sending inquiry information to the miner, acquiring a corresponding safety coefficient, and if the acquired safety coefficient is lower than a safety threshold value, planning a support path to the miner for the rescue robot, so that the rescue robot rescues the miner along the support path. After the miner is found according to the position information of the miner, the miner is rescued through guidance of the rescue robot, and the miner is prevented from getting lost and being lost.

The invention relates to the technical field of tunnel engineering, in particular to a tunnel door closing type collapse curve rescue method. According to the tunnel door closing type collapse curve rescue method, the rescue channel is formed in the stratum below the tunnel, safe construction of the rescue channel is rapidly conducted by avoiding a tunnel collapse body, and therefore the situation that the collapse body is directly tunneled by a mechanical device, disturbance of the collapse body is caused, and the secondary collapse risk is increased is effectively avoided; and the hindrance of a steel frame and an anchor rod possibly existing in the collapse body to tunneling is avoided.

The emergency lifesaving oxygen supply device in the mine comprises a compressor, two adsorption tanks and an air storage tank, an air inlet space and an adsorption space which are coaxially arranged are arranged in a tank body of each adsorption tank, and a spiral blade is arranged in each adsorption space; the spiral blade rotates to form upward axial conveying of molecular sieve particles in the adsorption space so as to form circulation of the molecular sieve particles between the adsorption space and the air inlet space, a rotatable separation cup is arranged in the air inlet space, and a separation net in the separation cup performs screening and powder removal on the molecular sieve particles; according to the emergency lifesaving oxygen supply device in the mine, the adsorption space of the radial flow adsorption tower is improved, a molecular sieve particle cleaning function is added, molecular sieve particles can be separated to remove powder when passing through the separation cup, the cleaning work of the molecular sieve particles can be carried out in the adsorption tank, the adsorption tank does not need to be opened, and the treatment process is greatly simplified.

The invention discloses an early warning method and system for coal and gas outburst danger of a mechanical driving face, and belongs to the technical field of coal mine safety, and the method specifically comprises the following steps: collecting data of the working face in real time, constructing a comprehensive early warning model to realize trend prediction and anomaly detection, triggering early warning and evaluating a risk level; a mine GIS is combined, an early warning area is accurately positioned, an intelligent decision support system of a knowledge graph and a rule engine is used, an optimal emergency plan is rapidly matched, and an emergency response plan is generated; according to the system and the method, workers of the heading machine can take refuge or escape measures in time when an accident occurs, so that the mine operation safety and the emergency response efficiency are improved, and the operation effect of the heading machine is improved.

The invention relates to the technical field of tunnel engineering, in particular to a tunnel door closing type collapse rapid curve rescue heading machine. According to the rapid curve rescue heading machine for the door-closing type collapse of the tunnel, a curve rescue channel can be formed from the side of the tunnel or the lower portion of an inverted arch to bypass a collapse body and reach a person trapped area, obstruction of the collapse body to heading of the rescue channel is effectively reduced, and rapid and safe rescue of the door-closing type collapse of the tunnel is achieved.

The invention relates to the technical field of mine safety, in particular to a dynamic control system and method for coal mine earthquake monitoring, and the system comprises an earthquake signal collection module, an earthquake wave propagation modeling module, an earthquake recognition module, a risk early warning and response module, and a dynamic control execution module. Wherein the mine earthquake signal acquisition module is used for acquiring data at a coal mine deep well; the mine seismic wave propagation modeling module is used for establishing a mine seismic wave propagation model; the mine earthquake identification module is used for identifying an earthquake source position and an earthquake magnitude; the risk early warning and response module is used for generating a risk level according to the magnitude and generating a corresponding control instruction; and the dynamic control execution module executes related mine control operation according to the control instruction. According to the invention, through multi-type sensor data acquisition, mine earthquake wave propagation accurate modeling and dynamic risk assessment and response technologies, accurate monitoring and efficient control of mine earthquake events are realized, and the intelligent level of coal mine safety management is improved.

The invention discloses an operation method of an underground coal mine fire area information detection emergency robot, and relates to the technical field of coal mine emergency rescue, and the operation method comprises the following steps: the robot determines fire area arrival conditions, and matches an entry mode; the robot plans a fire area entering route based on an entering mode in combination with a Dijkstra algorithm, and arrives at a specified detection position; the specified detection position is obtained based on terahertz imaging and multi-line laser radar fusion imaging positioning; the robot collects data at the detection position, judges the explosion risk and sends an alarm signal; the ground control center receives the alarm signal to carry out emergency response, fire source determination and fire extinguishing work, and the problems that an existing robot cannot quickly enter a fire area in the emergency disposal operation process, cannot pass nearby a working face support without obstacles, and can replace rescue and workers to go deep into the fire area to carry out fire point detection and explosiveness prediction are solved.

The utility model provides a large-scale navigation tunnel with escape channels capable of adapting to water level amplitude variation. The large-scale navigation tunnel comprises a plurality of escape channels, escape connecting trestle roads, a plurality of escape crawling ladders and an auxiliary traffic hole, the first end of the escape channel communicates with the large navigation tunnel, and the second end communicates with the auxiliary traffic tunnel. The first ends of the escape channels are located at different elevations. The side wall of the large navigation tunnel is provided with an escape connecting trestle road, and the escape connecting trestle road close to the first end of each escape channel is downwards provided with at least one escape ladder stand. The first ends of the multiple escape channels are located at different elevations, the escape connecting plank road is arranged on the side wall of the large navigation tunnel, the escape connecting plank road close to the first end of each escape channel is downwards provided with at least one escape crawling ladder, and the first ends of the multiple escape channels located at different elevations are communicated; under the condition of different water levels, people can escape in time through the escape ladder, the escape connecting gallery road, the escape channel and the auxiliary traffic hole in each hole section.

The invention discloses an underground positioning emergency system and an underground emergency treatment method. The underground positioning emergency system comprises a control device, water supply equipment, ventilation equipment, nutrient solution supply equipment, a plurality of positioning devices, rescue trolleys, emergency rescue pipes and converters, wherein the positioning devices are arranged in the extending direction of a roadway at intervals, and the rescue trolleys, the emergency rescue pipes and the converters are arranged in safety chambers. After an emergency accident happens, the rescue trolley is used for pulling the emergency rescue pipe to move towards the emergency accident happening place, surrounding environmental factors are monitored in real time so as to execute different emergency rescue measures, nutrient solutions can be provided for people to be rescued, and spreading of underground fire disasters can be restrained; and the underground dust concentration can be reduced, so that the camera shooting monitoring accuracy is improved, the emergency rescue effect and rescue efficiency are greatly improved, and the difficulty of later rescue is reduced.

The invention relates to an explosive shock wave absorbing structure and a design method, and relates to the technical field of underground mine mining, the wave absorbing structure comprises a core wave-blocking rock and a roadway arranged with the core wave-blocking rock as the center, the core wave-blocking rock is a right triangle or obtuse triangle, one side of the corner with the largest angle is an explosive warehouse connecting roadway, and the other side of the corner with the largest angle is an explosive warehouse connecting roadway. The explosive warehouse connection lane is connected with the underground explosive sub-warehouses, the explosive warehouse connection lane serves as an inlet end of explosive shock waves of the explosive warehouse, the two edge sides and the opposite edge side connected with the corner, with the largest angle, of the triangular structure of the core wave blocking rock serve as shock wave gas buffering lanes, and a safety lane connection lane is arranged at the midpoint of the opposite edge of the corner with the largest angle. Through the engineering arrangement of the explosion shock wave absorbing structure, shock waves generated by accidental explosion of an underground explosive warehouse can be absorbed, so that the effect of protecting main roadways, personnel and equipment at the output end position is achieved.

The invention provides a tunnel lining crack repairing method based on intelligent monitoring. The tunnel lining crack repairing method comprises the steps that a tunnel lining surface real-time monitoring data sequence is collected and preprocessed; determining a dynamic monitoring interval and a target monitoring data sequence in the interval according to the preprocessed data; calculating a fracture risk label based on the target data to represent a seepage hazard level; if the label is a high-risk label, generating a high-risk repair strategy, and if the label is a low-risk label, generating a low-risk repair strategy; and performing repair operation according to the repair strategy, including detecting repair abnormity through the fracture extension prediction model, and triggering an emergency repair device to perform grouting plugging or activate a drainage system through the repair decision tree when abnormity occurs. According to the invention, accurate identification and self-adaptive repair of the tunnel lining crack can be realized, the repair efficiency is improved, and the structure safety risk is reduced.

Disclosed is an underwater robot for a mine flooding rescue, including a starting unit configured to control the implementation of a whole rescue action; a drive unit connected with the starting unit and configured to provide a robot with power to move; and an execution unit connected with the drive unit and configured to salvage underwater life sources.

The invention provides a coal mine underground air door intelligent control method and system based on direct connection communication, and the method comprises the steps: when the number of a vehicle passing through an air door is single and the distance between the vehicle and the air door meets a first condition, the vehicle passes through the air door; a first message is sent to a direct connection communication roadway side device installed on a roadway side through a direct connection communication terminal device installed on a vehicle, wherein the first message comprises vehicle position information, speed information and passing request information containing a vehicle encrypted digital signature; the direct connection communication lane side equipment receives the first message, verifies the legality of the vehicle encrypted digital signature, and sends the vehicle position information and speed information passing verification to an air door controller; and generating an air door control strategy based on the vehicle position information and the speed information, and controlling an air door to execute opening or closing action based on the air door control strategy. According to the technical scheme, the control efficiency and accuracy are improved, and meanwhile automatic air door closing can be achieved in the dangerous case.

The utility model relates to the technical field of mine protection equipment, and discloses mine well mouth protection equipment which comprises a bottom plate, the bottom plate is fixedly installed on a well mouth, supporting columns are fixedly installed at the four corners of the wall face of the top end of the bottom plate, and a top cover is fixedly installed at the top ends of the supporting columns. The steering assembly comprises two mounting plates fixedly mounted between the bottom plate and the top cover, and a roller is arranged between the two mounting plates; the protection assembly comprises a circular protection plate; and a baffle assembly. The protection assembly and the steering assembly are arranged on the bottom plate, a steel wire rope drives a baffle ring to move in the ascending process, the baffle ring drives a circular protection plate to turn over after making contact with a rear guide plate, a mine car can conveniently go up, and the baffle assembly movably penetrates through one side of the bottom plate and pushes a rectangular protection plate into a clamping groove to block a well opening; and the situation that personnel fall off in the operation process is further avoided, and the safety of operators is ensured.

The push-pull type guardrail of the reversed loader comprises an overhead rail and a plurality of protective nets which are located below the overhead rail and can be folded and stretched, the heads and the tails of the protective nets are rotationally connected through hinges, and the middle portion of the top end of each protective net is provided with a moving assembly in rolling connection with the overhead rail through a U-shaped support. When the transfer machine runs, only the protective nets need to be pulled open, all the protective nets are unfolded to form a barrier, a warning board is hung on the protective nets, personnel entering an equipment operation area can be greatly reduced, a good warning effect is achieved, the protective nets are hung below the hanging rail, personnel carrying is not needed, and the safety of the transfer machine is improved. And the situation that the personnel deliberately move away and do not use is completely eradicated, the working safety environment is improved, and the habitual violation phenomenon of the personnel is reduced.

The invention relates to an emergency ventilation vehicle and an operation method thereof, and belongs to the technical field of emergency equipment. According to the technical scheme, the device comprises a cross-country chassis (1), a frame beam (2), a generator set (3), a jet fan (4) and a position adjusting mechanism (5), the frame beam (2) is arranged on a main beam of the cross-country chassis (1), the generator set (3) is installed on the side, close to a cab, of the frame beam (2), the position adjusting mechanism (5) is installed on the other side of the frame beam (2), and the jet fan (4) is arranged on the position adjusting mechanism (5). The position adjusting mechanism (5) controls the jet fan (4) to horizontally rotate and vertically turn over, the position of the jet fan (4) is adjusted, and the generator set (3) supplies power to the jet fan (4). The device has the positive effects that the device can be used for emergency mobile ventilation operation in closed and semi-closed spaces such as underground pipe galleries and tunnels, and the jet fan can adjust the position of a fan air opening through the position adjusting mechanism to adapt to the complex and changeable environment of a rescue site.

The invention discloses a rescue device and a rescue method for coal mine underground roadway collapse accidents. The device comprises a guide drilling mechanism, a transmission connection mechanism and a rescue channel mechanism. The method comprises the steps that the inclination gradient of a collapsed accumulation body is detected, and an initial drilling angle is determined; a center guide drill drills along the slope of the collapsed accumulation body; the electromagnetic ranging radar performs real-time detection, and when signals have obvious electrical difference, the drilling angle is adjusted to be nearly horizontal; the center guide drill continues to drill along the collapsed accumulation body, and when the electromagnetic ranging radar detects that the signals have obvious electrical difference, the drilling angle is adjusted to the initial drilling angle to be reversely inclined; the hole diameter is expanded by an expanding drill, the air rib type pneumatic membrane pipeline enters the expanded hole diameter, and a membrane spraying assembly is used for spraying; and the guiding drilling mechanism bypasses the collapsed accumulation body to reach the rescue position, the film spraying assembly stops spraying, the air rib type pneumatic membrane pipeline is inflated and unfolded, and the trapped person evacuates from the interior of the air rib type pneumatic membrane pipeline. According to the invention, the rescue efficiency and success rate of coal mine underground roadway collapse accidents can be improved.

The invention discloses a multifunctional integrated cooling and safety protection device for underground heat damage treatment. The multifunctional integrated cooling and safety protection device comprises a walking mechanism, a protection shell, a cooling mechanism, a monitoring mechanism, a standby power supply, an emergency material storage cabinet and an ice maker. The device can be flexibly arranged underground and quickly deployed to an underground heat damage area, the energy consumption is lower, and the real-time adjustment delay and hysteresis of the underground temperature are avoided. In the heat damage treatment process, the sound fatigue influence of noise factors on underground miners is fully considered, the noise level is effectively reduced in the equipment operation process, and a relatively quiet operation environment is provided for the underground miners. Aiming at potential operation risks existing in a well, environment monitoring and alarming functions are particularly added, meanwhile, emergency self-rescue and safety protection functions are provided, a temporary safety environment can be provided for miners in an emergency, the survival probability of the miners is increased when dangers occur, and the safety of the miners is improved. Finally, a downhole operation safety guarantee system integrating cooling, noise reduction, environment monitoring and alarming functions is formed.

The utility model provides modularized hydraulic comprehensive rescue equipment for collapse and limited space. The modularized hydraulic comprehensive rescue equipment comprises a supporting unit and a track unit. The supporting unit comprises a plurality of groups of channel frames, each channel frame comprises two crocodile type overhead devices fixed by a top connecting plate, each crocodile type overhead device comprises a base body and a supporting body which are hinged, and an included angle between the base body and the supporting body is adjusted through a jack; a fixing seat is arranged at one end, far away from the connecting shaft, of the supporting body; the upper surfaces of the two substrates jointly form a rescue channel; the rail unit comprises two rail bodies laid in the rescue channel, each rail body comprises a flexible shell and a spring arranged in the flexible shell in a penetrating mode, and a functional cable is arranged on the inner side of each spring in a penetrating mode. The hydraulic station on the fire rescue vehicle is used as power for pushing the trailer wagon to move forwards and forcible entry and obstacle removal, hydraulic support is provided for the rescue channel, the rescue channel is constructed, the conveying and transferring platform can be installed on the flexible rail body, trapped people and materials can be conveyed conveniently, and the fire rescue vehicle can be suitable for rescue in complex and narrow spaces.

The utility model provides a coal mine safety escape device, which relates to the technical field of coal mine escape and comprises an escape channel, a plurality of escape ladder assemblies are fixedly connected in the escape channel, an air inlet fan is fixedly mounted at the top end of a steel structure safety support, a protective screen plate is arranged on one side of the air inlet fan, and the protective screen plate is fixedly connected with the escape ladder assemblies. And the air inlet fan is in signal connection with a main control board. The mine escape device has the advantages that the air inlet structure is arranged at the top of the inlet of the escape device, the air inlet structure is in signal connection with the vibration detection structure, and the air inlet structure is controlled to supply air into the mine according to a vibration signal detected by the vibration detection structure; harmful gas at the inlet of the escape device is blown away through airflow generated by air supply, the concentration of the harmful gas at the inlet is reduced, escape personnel can conveniently wait for rescue at the inlet, harm to the escape personnel at the inlet due to excessive harmful gas is avoided, and the safety of the escape device is further improved.