780 results about "Spontaneous combustion" patented technology

The invention provides a flight device. The flight device comprises a body; the energy storage assembly is arranged outside the machine body, the energy storage assembly comprises a connecting mechanism and a battery, and the connecting mechanism is installed on the machine body; the connecting mechanism has a locking state and an unlocking state, the connecting mechanism is configured to be switched between the locking state and the unlocking state, in the locking state, the connecting mechanism is connected with the battery, in the unlocking state, the connecting mechanism is separated from the battery, and therefore the battery is separated from the machine body. Through the arrangement, when emergency situations such as spontaneous combustion of the battery occur, the connecting mechanism can be switched to the unlocking state, and the connecting mechanism and the battery are both located outside the machine body, so that the interior of the machine body can be effectively isolated from a fire source, and meanwhile, the battery is rapidly abandoned.

The invention discloses an emergency protection device for BMS module lithium battery equipment, and relates to the technical field of lithium battery equipment, the emergency protection device comprises a shell, the top end and the bottom end of the shell are detachably provided with a top cover and a bottom plate through screws respectively, rectangular grooves are symmetrically formed in the outer surfaces of the two opposite sides of the shell in a penetrating mode, and sliding blocks are slidably installed on the inner walls of the two rectangular grooves; sealing plates used for shielding the rectangular grooves are fixedly mounted on the outer surfaces of the sliding blocks, and a turning plate is rotationally mounted between the two sliding blocks through a rotating shaft; the upper surface of the turning plate is used for mounting a main battery pack; the lower surface of the turning plate is used for mounting an auxiliary battery pack; a turnover mechanism is installed between the sliding block and the shell, and a monitoring mechanism is installed on the top cover. The temperature of the main battery pack during working is monitored through the monitoring mechanism, when the temperature of the main battery pack during working sharply rises to an ignition point, the monitoring mechanism unlocks the sliding block through the limiting mechanism, the turnover mechanism drives the turnover plate to turn over by 180 degrees, the elastic conductive column of the main battery pack reaching the ignition point is disconnected from the conductive contact, and the main battery pack is prevented from being ignited. Meanwhile, the turnover plate, the baffle and the bottom of the shell form a closed space to isolate oxygen and avoid ignition and spontaneous combustion of the main battery pack.

The invention belongs to the technical field of electric energy metering, and particularly relates to a high-safety electric energy metering box, which comprises a box body and a safety assembly, and is characterized in that a meter is mounted in a mounting chamber in the box body, penetrates through the side wall of the mounting chamber through a connecting wire, and is connected into an external power grid system; a storage chamber is arranged on the back face of the box body, a safety gap is formed between the storage chamber and the installation chamber, and an information storage device is arranged in the storage chamber and connected with the meter through a transmission wire. When the meter has an overheating spontaneous combustion accident, a mounting chamber where the meter is located and a storage chamber where an information memory is located are physically separated through a safety gap; and the propelling equipment is started to drive the moving plate to move downwards to physically cut off the transmission wire, so that the information memory and the meter are completely separated, high-temperature flames are prevented from spreading along the transmission wire to threaten the information memory, the loss is further reduced, and the information safety is ensured.

The invention relates to the technical field of immersed temperature control and thermal runaway prevention of a power battery of a new energy automobile. The technical problems to be solved are clearly reflected that the non-uniform heat dissipation and spontaneous combustion of the power battery are two technical problems of a new energy automobile, and the technology provided by the invention can enable the heat dissipation of the power battery to be good and prevent spontaneous combustion. The technical scheme for solving the problem is characterized in that a buffer material is used for protecting the bottom of a battery pack, a circulating temperature control system is filled with fluorinated liquid, elements such as battery cells in the battery pack are soaked in the fluorinated liquid, and according to the temperature requirement of the battery cells, the fluorinated liquid exchanges heat with a heat pump system, a heater and a driving motor, so that the battery pack is heated. The fluorinated liquid is recycled to raise or lower the temperature of elements such as the battery pack. When the battery cell is abnormally high in temperature or thermal runaway, the battery cell is extinguished and cooled by means of quick discharge, water injection into the battery pack and the like. The device is used for heating or circularly cooling elements such as a power battery and preventing spontaneous combustion of a power battery pack.

The invention relates to the technical field of mining local fan air duct air volume self-adaptive adjusting equipment, in particular to a mining local fan air duct air volume self-adaptive adjusting device. According to the technical scheme, the self-adaptive adjusting device for the air volume of the air duct of the mining local fan comprises a fan body, a radiator, an installation support, an electric adjusting air door, an air storage bin, the air duct, an environment detection module, an air speed detection module and a control module, the radiator is arranged on one side of the fan body, and the installation support is arranged on the bottom face of the fan body; an electric adjusting air door is arranged on one side of the ventilator main body; the environment sensing module is arranged, triple redundancy design is adopted, when the gas concentration is abnormal, whether the gas concentration is a spontaneous combustion symptom or not can be discriminated in combination with temperature data, or the coal rock collapse risk is pre-judged through the dust concentration change, and the safety interlocking response time is shortened.

The invention discloses a coal oxidation dynamic evolution multi-parameter real-time monitoring device under ultraviolet radiation, the device comprises a monitoring unit and a reaction unit, the monitoring unit comprises an ultraviolet radiation module, a gas monitoring module, a heat monitoring module, an active group monitoring module, a free radical monitoring module and a control unit, the reaction unit comprises a multi-channel in-situ reaction module and a coal sample reaction cavity, and a monitored coal sample is arranged in the coal sample reaction cavity; the ultraviolet radiation module is used for generating a controllable ultraviolet radiation field on the surface of the coal sample; the gas monitoring module is used for monitoring gas components released in the coal oxidation process in real time; the heat monitoring module is used for monitoring temperature distribution inside and on the surface of the coal sample; the active group monitoring module is used for tracking dynamic evolution of functional groups on the surface of the coal sample. Accurate and high-timeliness coal sample dynamic evolution monitoring is realized, and key data support is provided for revealing a coal oxidation chain reaction mechanism and a spontaneous combustion process.

The invention discloses an outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure, and relates to the technical field of power distribution cabinets, the outdoor low-voltage power distribution cabinet comprises a cabinet body, the front side of the cabinet body is provided with a protection door, the side of the cabinet body is provided with a heat dissipation groove, the top side of the interior of the cabinet body is rotatably connected with a rotating barrel, and the interior of the rotating barrel is provided with a fire extinguishing airbag; and a rotating mechanism capable of discharging carbon dioxide gas in the fire extinguishing air bag in a large range is arranged in the cabinet body. According to the outdoor low-voltage power distribution cabinet with the spontaneous combustion protection structure, after a fire occurs, carbon dioxide gas stored in the fire extinguishing air bag is discharged, so that the fire in the cabinet body is controlled, when an adjusting plate moves under the threaded connection effect of a threaded rod, a toothed plate is synchronously driven to move, and the spontaneous combustion protection effect is improved. At the moment, the toothed plate can drive the rotating barrel to rotate through the toothed ring meshed with the toothed plate, and when the rotating barrel rotates, gas leaked from the fire extinguishing airbag can be diffused in a larger range, so that the fire control efficiency is improved.

The invention discloses a continuous mining and continuous filling recovery section coal pillar mining method and system, and the method comprises the steps: determining the position of a coal pillar working face crossheading, and carrying out gob-side entry driving along the positions, close to goaf, of the two sides of a coal pillar; grouting and plugging the goaf before tunneling, and injecting a flame retardant; side filling roadway forming is conducted on the goaf through coal gangue, and a supporting system of a coal pillar working face crossheading is constructed; supporting a coal pillar working face crossheading; the section coal pillars are recovered by adopting a continuous mining and continuous filling process, and coal bodies are replaced by filling bodies, so that the whole coal pillar recovery-filling process is ensured to be smoothly carried out until all coal resources are recovered. According to the method, the coal recovery rate can be increased, the problems of spontaneous combustion danger and toxic and harmful gas over-limit caused by goaf air leakage are solved, the fire hazard caused by sparks generated when a fully-mechanized coal winning machine touches old roadway anchor rods in the roadway tunneling process is solved by injecting the flame retardant, waste coal gangue can be effectively utilized, the problems of environmental pollution and the like are avoided, green mining is achieved, and the method is suitable for large-scale popularization and application. The mine service life is prolonged.

The invention relates to the field of cables, in particular to a safety cable connector with an anti-drop function, which comprises a female head, a connecting sleeve and a male head, the surface of the female head is connected with a connecting sleeve; the connecting sleeve is slidably connected with a male head, and the surface of the male head is fixedly connected with a plurality of guide strips; grooves corresponding to the guide strips are formed in the inner sides of the connecting sleeves, and magnetic attraction pieces capable of being matched with each other are arranged at the deepest positions of the grooves and the ends of the guide strips. A heat conducting ring and the like are also included; the contact column of the female head is fixedly connected with a heat conduction ring. When the contact column and the connecting ring are overloaded and generate heat abnormally, continuous heat is transmitted to the expansion ring through the heat conducting ring, the expansion ring is gradually extended rightwards after being heated, the expansion ring extrudes and pushes the round rod rightwards, then the round rod pushes the connecting disc and the connecting ring rightwards, the connecting disc slides along the inner side of the male head, and the male head is connected with the male head. And the circuit is cut off, so that continuous temperature rise is prevented, and a spontaneous combustion event is avoided.

The invention belongs to the technical field of coal mine disaster prediction, and discloses a method and a system for judging a spontaneous combustion dangerous area of a goaf in a working face withdrawing stage. According to the method, influence of goaf air fracture development and air leakage channel formation on a spontaneous combustion dangerous area is determined; verifying the influence of residual coal distribution on the spontaneous combustion dangerous area of the goaf; determining the influence of void ratio and distribution on the spontaneous combustion dangerous area distribution of the goaf after the coal caving amount of the working face is reduced; the working face shrinks in the withdrawing period; after the end hydraulic support is withdrawn in the later period, the coal body collapses to block an air return channel, and full-negative-pressure ventilation of the working face is switched into positive-pressure ventilation of a local ventilator; and importing the void ratio and the residual coal distribution change formula into FLUENT numerical simulation software by utilizing a CFD-DEM simulation result. Technical basis is provided for judgment of the spontaneous combustion high-danger area of the working face from end mining to support removing goaf, and standardization and normalized development of the industry technology are assisted; and the generation of gases such as CO and CO2 caused by spontaneous combustion of the goaf is avoided.

The invention discloses a fireproof flame-retardant technology for electric vehicles. The invention relates to the technical field of fire prevention and flame retardance of electric vehicles (non-new energy electric vehicles). Along with increasing quantity of various electric two-wheeled vehicles, tricycles and four-wheeled vehicles, spontaneous combustion of the electric vehicles and ignition of surrounding vehicles occur occasionally, and serious property loss is caused. Corresponding flame retardants are added into raw materials for manufacturing parts such as plastic parts, rubber parts, sponge parts and leather parts of the electric vehicle to manufacture the parts with flame retardance, fireproof paint is sprayed on the inner surfaces and the outer surfaces of metal parts and the plastic parts of the electric vehicle, and fireproof electric wires are adopted as wires of electric elements of the electric vehicle. And a series of measures such as sleeving the fireproof wire with a fireproof cloth sleeve and protecting the battery compartment by using a fireproof heat-insulating material are taken, so that the whole electric vehicle has fireproof and flame-retardant functions. When electric vehicle wires are short-circuited and on fire, batteries are spontaneously combusted or adjacent vehicles are combusted, the battery is not ignited.

The invention discloses a coal storage and transportation intelligent management method and system, relates to the technical field of intelligent management systems, and aims to solve the problems of lack of environment monitoring, scheduling decision lag, extensive safety response and serious data island in the prior art. The method comprises the following steps: collecting the physical state, environmental parameters and operation behavior data of a coal storage yard in real time through a distributed sensor network; constructing a three-dimensional dynamic digital twinborn model and inputting the model into a time sequence neural network to predict the risk of spontaneous combustion, collapse or dust explosion in the future; and generating a dynamic scheduling instruction in combination with the task priority and the equipment state, and triggering a multi-level security response mechanism. The system comprises a sensor network module, a data fusion modeling module, a risk prediction module, a scheduling optimization module, and a closed-loop control and safety response module. According to the scheme, safety early warning preposition, scheduling decision intelligent optimization and resource energy efficiency collaborative improvement in the storage and transportation process are achieved, and the response capability and operation reliability of the coal supply chain are remarkably enhanced.

The invention discloses a fire extinguishing system for an energy storage battery cabin of an energy storage power station, and belongs to the technical field of fire fighting, the fire extinguishing system comprises a battery storage cabin, a cabin door is mounted outside the battery storage cabin through hinges, and a carbon dioxide generator and a fire extinguishing agent spraying box are fixedly mounted on the top surface of the battery storage cabin; an exhaust plate and a fire extinguishing agent spraying plate are arranged at the bottom of the carbon dioxide generator and the bottom of the fire extinguishing agent spraying box correspondingly and located on the inner side of the battery storage bin. According to the fire extinguishing device, the driving assembly and the extrusion assembly are arranged in a matched mode, through the design, the interior of the battery storage bin can be monitored in real time, when spontaneous combustion of a battery occurs, the fire extinguishing system can be controlled to be started in time to treat the spontaneous combustion condition, and the fire extinguishing mode of combining a dry powder extinguishing agent and carbon dioxide gas is adopted; the fire extinguishing effect can be greatly improved, meanwhile, gas and a fire extinguishing agent can be rapidly diffused and distributed in the cabin, and the actual application effect of the system is improved.

The invention relates to a phosphorus spontaneous combustion prevention modified fly ash three-phase foam material and a preparation method and application thereof, the modified fly ash three-phase foam material is prepared by taking fly ash as a solid phase, sodium dodecyl benzene sulfonate and alpha-olefin sulfonate as foaming agents, xanthan gum and sodium silicate as foam stabilizers, and potassium chloride as a surfactant. The modified fly ash three-phase foam provided by the invention has more excellent temperature resistance and flame retardance, and can well play a role in preventing phosphorus spontaneous combustion.

The application belongs to the field of park unmanned inspection safety monitoring, and specifically discloses a park unmanned inspection safety monitoring system based on intelligent property, which comprises the following steps: acquiring a UAV inspection path by counting each missing space and each intersection space in a park, and discovering safety hazards in hidden spaces in the park in a timely manner; acquiring a redundant material heat conductivity index in each key space and an overlapping area of the redundant material heat conductivity index and an illumination area, evaluating a cumulative spontaneous combustion effect index between the redundant material heat conductivity index and a meteorological environment, combining a pollution rate of the redundant material in each key space, analyzing a safety coefficient of the redundant material in each key space, and helping to discover spontaneous combustion risks and environmental pollution problems in a timely manner; analyzing priority weight values of each passage path to which each key space belongs, determining a UAV inspection optimized path, and further optimizing the inspection optimized path by extracting historical inspection data, so that the UAV inspection path is more in line with actual requirements of the park.

The invention discloses a battery separation system, a control method thereof and a vehicle, and relates to the field of vehicles. The method comprises the following steps: detecting state information of a battery pack and state information of a vehicle; and controlling the battery pack fixing device to separate the battery pack from the vehicle under the condition of determining that the battery pack has a fire risk according to the state information of the battery pack and / or the state information of the vehicle. Therefore, the battery pack can be separated from the vehicle under the condition that the battery pack has a fire risk, the threat of spontaneous combustion of the battery pack to a driver and passengers is reduced, the implementation difficulty is low, the battery pack does not need to have too high performance requirements, and the cost can be effectively controlled.

The invention provides a coal mine fire early warning assistant defense joint control intelligent management and control platform, and relates to the technical field of coal mine safety detection. The platform is applied to a goaf equipped with a nitrogen making machine, and comprises a data acquisition layer, a data processing layer, a communication control layer, a monitoring and early warning layer and a data visualization layer, the platform collects the fluid flow in a closed pipeline in a goaf, the environment temperature of the goaf, the pressure of different working faces in a coal mine and the pressure of the position where each valve of the nitrogen making machine is located in real time, integrates all the collected data, compares and analyzes the integrated data with a set threshold value range, and if the analysis result is normal, the nitrogen making machine is started. If yes, the current operation state of the nitrogen making machine in the goaf is maintained; if the analysis result is abnormal, the nitrogen making machine is controlled to open a valve to inject nitrogen into the goaf for fire extinguishing until the analysis result becomes a normal position, and nitrogen injection is automatically stopped. The spontaneous combustion risk of the goaf can be effectively prevented and controlled, and the overall safety management level of a coal mine can be improved.

The utility model discloses a safety type active water molecule electrolysis device which comprises a shell with an air flow channel, a membrane electrode assembly is arranged in the shell, the membrane electrode assembly divides the air flow channel into an air inlet end and an air outlet end, the anode side of the membrane electrode assembly faces the air inlet end, the cathode side of the membrane electrode assembly faces the air outlet end, and the air outlet end faces the air outlet end. The air inlet end is provided with a pure iron foil for air flow to pass through, the pure iron foil absorbs oxygen generated by electrolyzing water molecules on the anode side of the membrane electrode assembly, and the exhaust end is provided with an ePTFE microporous breathable protective film. Through the mode, the safe active water molecule electrolysis device and equipment can absorb oxygen in the equipment, so that the oxygen content is in a lower state, the corrosion damage of oxygen-enriched atoms is avoided, and the spontaneous combustion risk caused by over-high internal oxygen concentration is avoided.

The invention belongs to the technical field of coal mine fire prevention and extinguishing, and particularly provides a coal mine goaf fire simulation experiment device and method. Comprising an experiment table groove body, a working face channel, an air inlet way, an air return way, a ventilation system, a goaf groove body, a water bath heating and heat preservation system, a goaf temperature simulation system, a distributed temperature acquisition system, a goaf gas environment simulation system and a gas acquisition system. According to the invention, the inclination pitching angle, the coal rock porosity, the goaf ignition position, the internal gas components and the like of the goaf can be simulated according to the actual conditions of different working surfaces of each coal mine, and the evolutionary process of the spontaneous ignition accident of the goaf is realized. According to experimental data, development and change states of internal temperature, gas components and the like of the goaf of each coal mine can be determined, key fire prevention and control areas of the goaf in each period of coal mining are found out, early warning is performed in advance, and life and property safety of underground personnel is guaranteed.

The invention relates to the technical field of battery safety, and provides a battery spontaneous combustion protection system and method based on a safety curve. The system comprises a battery data acquisition unit, a safety curve storage unit, a risk assessment unit, an execution control unit and an event recording and notification unit. The residual capacity, the internal resistance, the temperature, the cycle index and the charge state of the battery are collected in real time, the data and a safety curve provided by a battery manufacturer are subjected to normalization analysis, a risk score is calculated based on a multi-parameter weighting algorithm, and a risk grade is generated. The system executes a hierarchical protection strategy according to the risk level, including risk prompting, charging current limiting, charging disabling, discharging power reducing or output disconnecting, and executes soft turn-off before disconnection to reduce energy impact. The system has cloud updating and data returning functions, can automatically generate alternative thresholds when a safety curve is missing or abnormal, realizes early recognition and active protection of the spontaneous combustion risk of the battery, and remarkably improves the safety and reliability of the system.

The invention is applicable to the technical field of conveying belts, and provides a macromolecular flame-retardant conveying belt which comprises a mounting frame, a transmission roller and a guide roller, and the transmission roller and the guide roller are rotationally mounted on the mounting frame; the conveying belt is arranged on the transmission roller in a sleeving mode and used for conveying materials, the conveying belt makes contact with the guide roller, the conveying belt is composed of upper covering rubber, a bonding layer, a belt core framework and lower covering rubber, and the belt core framework is located between the upper covering rubber and the lower covering rubber and firmly bonded through the bonding layer. According to the high-molecular flame-retardant conveying belt, lump coal with high value and pulverized coal with low value are separated in real time at the conveying front end, value loss caused by mixed transportation is avoided, graded utilization of resources is achieved, and meanwhile through the arrangement of the conveying belt, atomization dust falling, a dust cover, spontaneous combustion monitoring, fixed-point fire extinguishing and the like, the conveying efficiency is improved. And dust pollution and fire risks are effectively reduced, and the working environment is improved.

The invention relates to an underground coal mine goaf spontaneous combustion networking type monitoring device, which belongs to the technical field of underground coal mine goaf spontaneous combustion monitoring, and comprises a panel display terminal, a monitoring host and a wireless detector group, the monitoring host is arranged at the corner of one side, close to the air inlet way, of the working surface; the panel display terminal is connected with the monitoring host; the wireless detector group comprises a plurality of wireless detectors which are distributed in the goaf along the stoping direction; the panel display terminal, the monitoring host and the wireless detector group are interconnected through a built-in LoRa module; the monitoring host moves in the forward stoping direction along with working face stoping. Collected information sharing among the wireless detector groups in the device is realized, long-distance signal transmission power consumption is reduced, and effective working time of the wireless detectors in a goaf is prolonged; the arrangement of the networking type wireless detectors improves the accuracy of natural ignition monitoring in the goaf and the monitoring precision of the ignition area. The invention further provides a corresponding monitoring method.

The invention provides an underground working face spontaneous combustion monitoring system and method.The underground working face spontaneous combustion monitoring method comprises the steps that (1) a target area is divided to determine monitoring points and strain points, and first wireless sensor nodes and second wireless sensor nodes are deployed respectively; (2) acquiring the environment temperature and the combustible gas concentration of each monitoring point on line through a first wireless sensor node, and comparing and analyzing the acquired real-time data and a preset critical value to determine a dangerous area; (3) monitoring the temperature change and the combustible gas concentration change of the dangerous area within the preset time for visual display, and judging whether a fire risk exists in the dangerous area or not; and (IV) waking up the second wireless sensor nodes deployed at the strain points around the dangerous area, evaluating the fire hazard grade, and carrying out graded early warning. According to the method, the monitoring data of the underground working face is comprehensively analyzed, the spontaneous combustion risk is evaluated and graded early warning is performed, and the detection accuracy is improved.

The invention discloses a multiphase substance filling method for a discarded roadway of a coal face of a spontaneous combustion coal seam. The method comprises the following steps: S1, determining a closed position of the discarded roadway; s2, drilling holes beside the scrapped roadway and laying gas production pipes; s3, an inner side sealing wall is built in the scrapped roadway, and an air injection pipe is arranged; and S4, CO2 gas is injected into the scrapped roadway on the inner side of the inner side sealing wall through a gas injection pipe, and leakproofness detection and other steps are carried out. According to the discarded roadway, sealing and gravel filling are only conducted on the portion, 30 m away from the coal face side, of the discarded roadway through the two sealing walls, CO2 gas is injected into the discarded roadway, after rocks on a top plate of the goaf continuously collapse, the goaf is continuously compacted again, then liquid CO2 is injected into the discarded roadway, and permanent sealing and storage of the goaf can be achieved. And drilling holes are constructed in the periphery of the scrapped roadway, gas in the drilling holes is sampled through the gas production pipe, the diffusion range of CO2 gas in the scrapped roadway is detected, and it is guaranteed that liquid CO2 in the scrapped roadway does not leak.

The invention discloses an underground garage spontaneous combustion management and control system, method and device based on AGV carrying, and relates to the technical field of garage spontaneous combustion management and control. The underground garage spontaneous combustion management and control system based on AGV carrying comprises an AGV carrying module; a fire extinguishing analysis module; a smoke diffusion analysis module; and a smoke discharge response analysis module. According to the invention, the AGV carrying robot carries the abnormal vehicle to the safe room for fire extinguishing, then carries out fire extinguishing analysis on the abnormal vehicle in the safe room and judges whether to carry out smoke discharge pressure dynamic optimization or not, and then carries out smoke diffusion analysis on the abnormal vehicle in the safe room and judges whether to carry out smoke discharge speed influence dynamic optimization or not. And finally, the smoke exhaust device is subjected to response analysis and whether smoke exhaust control optimization is carried out or not is judged, so that the effect of improving the safety in underground garage vehicle spontaneous combustion control based on the AGV is achieved, and the problem of low safety in underground garage vehicle spontaneous combustion control based on the AGV in the prior art is solved.

The invention relates to an emergency unlocking device for an energy storage cabinet, and aims to solve the technical problems that an energy storage cabinet door is difficult to automatically unlock and open, the internal pressure is timely released and danger expansion is avoided when small spontaneous combustion explosion occurs in the conventional similar energy storage cabinet. The emergency unlocking device is characterized in that the emergency unlocking device comprises a gas collecting mechanism and an executing mechanism, the emergency unlocking device is installed at the position of a lock of a cabinet door, an executing piece extending out of the executing mechanism is connected with an unlocking piece of the lock, a gas collecting seat of the gas collecting mechanism is semicircular, and a gas collecting film is arranged on one side of a circular opening in the top of the gas collecting seat. A through hole is formed in one side of a diaphragm of the gas collecting film, an executing mechanism is arranged at a hole opening in the bottom of the gas collecting seat, and the executing mechanism is connected with the through hole in the gas collecting seat of the gas collecting mechanism through a gas pipe; the executing mechanism is a pinch bar pushing unlocking device or an air cylinder pushing unlocking device, an air collecting film of the air collecting mechanism is fixed to a circular opening in the top of an air collecting base through an air collecting cover, and the two ends of a compressed spring in the air collecting base abut against the air collecting film and the inner bottom of the air collecting base respectively.

The invention discloses a coal mine goaf spontaneous combustion three-zone dynamic monitoring and liquid carbon dioxide injection regulation and control system, and relates to the technical field of mine field flame prevention. Deploying a sensor to dynamically adjust the acquisition layout and frequency; the data processing and analyzing module is used for dividing three spontaneous combustion zones by using deep preprocessing and an improved neural network and judging risks; the liquid carbon dioxide injection control module regulates and controls liquid injection according to needs through a regulating valve and a fuzzy-neural network algorithm; and the remote monitoring and early warning module is used for realizing monitoring, multi-stage early warning and virtual simulation based on cloud and big data, and all the modules are coordinated and can be fused with the existing system. The coal mine goaf spontaneous combustion three-zone accurate monitoring and liquid carbon dioxide efficient injection are achieved through accurate multi-source monitoring, intelligent analysis decision and dynamic accurate regulation and control; the system can early warn hidden dangers in advance, improve prevention and control accuracy, reduce resource waste, and can be integrated with an existing system to guarantee safety production of a coal mine and reduce accident risks.

The invention discloses a fault detection method and system for an integrated double-gun direct current charging pile, and relates to the technical field of charging pile fault detection, and the method comprises the steps: obtaining a real-time order of the integrated double-gun direct current charging pile, and carrying out the analysis and processing of the real-time order of the integrated double-gun direct current charging pile based on a fault analysis terminal. According to the method, the historical order of the integrated double-gun direct current charging pile is analyzed to determine the historical change curve of the charging current, and then the real-time order of the integrated double-gun direct current charging pile is analyzed to determine the real-time change curve of the charging current. The charging current real-time change curve and the charging current historical change curve are calculated and analyzed, the average current change quantity is determined, finally, the average current change quantity is judged, whether the integrated double-gun direct current charging pile has the overcurrent phenomenon or not is determined, the situation that the integrated double-gun direct current charging pile breaks down in the charging process is avoided, and the charging efficiency is improved. The spontaneous combustion condition is avoided, and the property loss is reduced.

The invention discloses an inerting treatment device for preventing spontaneous combustion of biochar, and relates to the technical field of carbon powder. The device comprises a bottom plate, a vertical frame and an H-shaped frame are fixed to the top of the bottom plate, a T-shaped feeding barrel is fixed to the top of the vertical frame, a feeding port is formed in the top of the T-shaped feeding barrel, a rotating rod is rotationally installed in the T-shaped feeding barrel and driven by a motor, and spiral blades are fixed to the outer portion of the rotating rod; and a fixed shell is fixedly embedded in the top of the T-shaped feeding barrel. By adopting the technological process thought of water adding and stirring, preheating and temperature rising, low-temperature oxidation, air inducing and discharging and cooling, the process can remove active substances contained in the carbon powder, so that the carbon powder loses activity and is in a stable state, the carbon powder treated by the process is placed in the air in an open manner, and the natural temperature rising is generally less than 20 DEG C, so that the carbon powder can be recycled. Therefore, the technical problem of spontaneous combustion of the carbon powder in the storage, transportation and use processes is fundamentally solved.

The invention discloses a coal conveying and dust removing system suitable for easily self-fired coal, and particularly relates to the field of dust removal, the coal conveying and dust removing system comprises a multi-dimensional parameter acquisition and processing module, a dust raising risk grading module, a dust removing mode dynamic selection module, a dust removing core parameter quantitative regulation and control module and a real-time feedback iteration module; the multi-dimensional parameter collecting and processing module is used for collecting multi-dimensional data and marking the temperature close to the spontaneous combustion critical temperature and the high-concentration dust raising state; the flying dust risk grade division module is used for calculating a flying dust comprehensive risk index according to the parameters acquired through coupling and dividing risk grades according to the value of the flying dust comprehensive risk index; according to the method, dust raising risk grades are divided through multi-dimensional parameter acquisition, dust removal modes are dynamically selected in combination with particle characteristics of different transfer links, core parameters are quantitatively regulated and controlled, and the problems that dust raising characteristics of different transfer links are not distinguished, and the local dust removal efficiency is insufficient or energy consumption is wasted due to the adoption of unified parameters are solved.