31results about How to "Reduce safety accidents" patented technology

The invention discloses a precaution analysis system for a distribution line and an analysis method. The analysis system and analysis method are characterized by comprising gloves, a vibrator, a somatosensory device, a host machine and a display screen; the host machine is respectively connected with the gloves, the vibrator, the somatosensory device, and the display screen; the gloves are data gloves and internally provided with a temperature sensor and a humidity sensor which are used for sensing hand temperature and humidity data; the vibrator generates an impulse vibrating signal when wrong operation is happened, stimulates trainees and enhances the training effect; the somatosensory device catches movement action of human body, and displays corresponding operation action of a virtual person on the display screen. The precaution analysis system can realize interactively, lively and vividly staff safety training, and improve the electrical safety production knowledge and skill training quality.

The invention discloses a coal mine local ventilation parameter accurate monitoring and abnormity early warning system and method. The system is composed of an air duct air volume accurate monitoringand analysis module, a local ventilation system power consumption analysis module, an air volume supply and demand matching analysis module and a ventilation fault research and judgment early warningmodule. The air volume accurate measuring, monitoring and analysis module comprises various sensors and monitoring substations, and local air volume accurate monitoring is achieved by optimally arranging air volume measuring points of an air duct and calculating and verifying kinetic energy of monitoring speed pressure. The ventilation system power consumption analysis module comprises a local ventilation resistance parameter monitoring and wind pressure on-way loss model and is used for realizing visual monitoring and resistance abnormity early warning of local resistance. The air volume supply and demand matching analysis module predicts fan adjustment according to the air volume data and advanced simulation of air volume supply and demand, and establishes a local ventilation air volumesupply and demand matching model. The ventilation fault research and judgment early warning module extracts a characteristic sample and precursor information of a local ventilation fault state according to the monitored multivariate environmental parameters to realize development situation research and judgment early warning of the local ventilation state.

The patented technology is mainly used for achieving the problems that an industrial system blast furnace is pushed for replacement of a furnace body, when a blast furnace body structure is pushed forrapid replacement of the new furnace body, the structural stability of a blast furnace body framework structure is not affected to the largest degree, structure detachment is reduced for pushing thefurnace body, and the replacement time is saved. A method is suitable for overhauls and replacement of the furnace body structure of the high-capacity blast furnace, and the problems that the replacement period of the furnace shell of the blast furnace is long, and the idling period is long are solved.

The invention discloses a machine learning-based attack detection method for non-analyzable network data feature selection. The method is composed of three parts of data acquisition preprocessing, feature extraction and construction and attack detection model establishment and detection based on machine learning. The data preprocessing part is used for carrying out numeralization on network data;the feature extraction and construction part completes construction of data features based on data packet period and length information on the basis of deep analysis of industrial control network attacks. The modeling part is used for establishing an industrial control network attack detection model based on a machine learning classification method. According to the invention, attack forms such asre-amplification flow attack and man-in-the-middle attack in the industrial control system network can be accurately detected in real time, and safety accidents and economic losses caused by the safety accidents are reduced.

The invention provides an adjustable combined corner pulley device and an adjusting method. The laying device comprises a positioning mounting seat, corner pulleys and a length-adjustable length adjusting piece, wherein the corner pulleys are rotatably mounted on the side plates on the two sides of a pulley support through a rotating shaft, and the rotating shaft is detachably connected with the side plates; and the length adjusting piece is detachably connected between the mounting base and the pulley support. Cable laying positions at the corners can be prevented from being overlapped to theinner sides of the corners, cable laying is ensured to be standard and tidy, safety accidents caused by uneven stress of the bridge are reduced, the operation difficulty of workers is lowered, and the cable laying efficiency is improved; the cable can be conveniently separated from the pulley support, and the defect that a pulley block is difficult to detach after the cable is laid in the prior art is overcome.

The invention discloses a construction process of a tool type steel lattice column lifting frame for high-altitude integral lifting large-span integral assembling welding ball net frame. The construction process comprises the following steps of (1) net frame construction; and (2) integral lifting of a pulling rod of the net frame. The process has the advantages of being convenient to operate, highin construction speed, excellent in quality, capable of saving labor and the like, the requirements for energy conservation and environmental protection are met, and no safety and quality problems occur in the construction process. According to the construction method, a traditional net frame lifting construction method is technically innovated, an advanced construction method is provided for building construction, and good social benefits are achieved.

The invention relates to an automatic blanking assembly line, and belongs to the technical field of assembly lines. According to the main scheme, the automatic blanking assembly line comprises a movable-type material placement platform assembly, a portal frame assembly, a material conveying assembly capable of horizontally moving on the portal frame assembly, a first supporting platform, a material processing platform arranged on the first supporting platform in a matched mode, a pressing machine arranged on the material processing platform, a tool assembly arranged in the pressing machine, and a finished material product conveying device arranged under the tool assembly; the tool assembly comprises a movable tool assembly body arranged on a pressing machine movable block and a fixed toolassembly body arranged on a pressing machine fixed seat; and the movable tool assembly body is connected with a guiding rod assembly of the fixed tool assembly body through a guiding sleeve assembly.The automatic blanking assembly line has the functions that a finished product is cut out, and meanwhile waste materials can be cut, thus the labor cost is reduced, and the production efficiency is improved.

The invention relates to a sewage pipeline plugging system suitable for high-water-level operation and a use method. According to the technical scheme, the system comprises a desilting device used for cleaning an inlet of a sewage pipeline, an air bag plugging device and an air bag mounting device. The air bag plugging device is provided with an air bag and used for plugging a sewage pipeline inlet cleaned by the desilting device through the air bag; the air bag mounting device is used for remotely mounting the air bag to the part of the sewage pipeline inlet; and the air bag mounting device is provided with a vertical telescopic mechanism, the lower end of the vertical telescopic mechanism is connected with two parallel transverse rods perpendicular to the axial direction of the vertical telescopic mechanism, the distance between the two transverse rods is matched with the diameter of a sewage pipeline, a pulley I is mounted at the outer end of each transverse rod, and a pulley II is mounted at the inner end of each transverse rod. The air bag is arranged between the two transverse rods of the air bag mounting device and connected with two traction ropes, and the two traction ropes are sequentially wound around the pulleys I and the pulleys II on the transverse rods on the two sides respectively and then extend upwards along the vertical telescopic mechanism to be connected with a traction mechanism. The plugging system is suitable for the technical field of municipal sewage pipeline plugging.

The invention discloses an integrated working partition chamber of a powder forming machine. The integrated working partition chamber of the powder forming machine comprises a plurality of partition surfaces and a partition part formed by mutually connecting the partition surfaces, the partition part divides the surrounding space into an internal space and an external space, and the internal space is used for containing the powder forming machine. The working space of the powder forming machine and the environment space where the powder forming machine is located are isolated through the partition part in the physical space, the safety performance of equipment is improved through isolation, the probability of safety production accidents is reduced, the influence of noise generated when the powder forming machine works on the surrounding space is reduced, meanwhile, the working partition chamber has a more attractive shape, and the comfort degree of the working environment of a production workshop can be improved.

The invention discloses a mining overhead man-riding device capable of sliding and self-adapting. The overhead man-riding device is mainly composed of a hanging plate, a hanging rod, a seat and a footrest lever. A telescopic sliding rod device is arranged at the upper part of the hanging rod. A telescopic sliding rod is a sleeve device with an upward angle and a telescopic automatic reset function; a supporting frame is composed of an inner barrel and an outer barrel, the outer barrel is fixedly connected with an upper hanging rod, a lower hanging rod can slide in the inner barrel under the action of a lantern ring, a check block is arranged on the lantern ring, a spring acts on the check block to enable the lower hanging rod to reset, and an elastic block is further arranged on the lowerportion where the outer barrel is connected with the inner barrel. When a miner uses the monkey vehicle, the telescopic sliding rod drives the hanging rod to move downwards, the acceleration of the hanging rod is reduced, and the miner can better adapt to taking a monkey vehicle. The overhead man-riding device is simple and safe in structure and practical and novel in function, especially can effectively overcome the fear when a person takes the overhead man-riding device for the first time, and has good social and economic benefits.

The invention discloses a safety monitoring tower crane. The tower crane is provided with a cab and a balancing weight. The cab is provided with a master controller, a displayer and an alarming device. The tower crane is provided with a rotation mechanism and an amplitude-change trolley. Tension sensors comprise the front tension sensor and the rear tension sensor which are mounted on a front stay cord and a rear stay cord correspondingly. A wind speed sensor is arranged in the middle of a tower body. A weight sensor is arranged on a lifting cord. A height sensor is arranged on the amplitude-change trolley. Speed sensors are arranged on the amplitude-change trolley and the lifting cord correspondingly. An angle sensor is arranged on the rotation mechanism. A temperature sensor is arranged at one end of a weight arm. An electrostatic sensor is arranged on a cargo boom. The tower crane can detect the working conditions of the tower crane and the field temperature and detect whether dangers exist around or not, so that accidents are reduced, and control over the tower crane by operators is facilitated.

The invention provides a mast crane control system for installation of a cement waste heat boiler. The mast crane control system comprises a main hook motor M1, a variable amplitude motor M2, an oil pump M3, a first hydraulic cylinder used for controlling a mast to rotate leftwards, and a second hydraulic cylinder used for controlling the mast to rotate rightwards, wherein the oil pump M3 communicates with the first hydraulic cylinder through a first electromagnetic valve YA1, and the oil pump M3 communicates with the second hydraulic cylinder through a second electromagnetic valve YA2; and the mast crane control system for installation of the cement waste heat boiler further comprises a second contactor KM2 used for controlling the main hook motor M1 to rotate forwards, a third contactorKM3 used for controlling the main hook motor M1 to rotate reversely, a fourth contactor KM4 used for controlling the variable amplitude motor M2 to rotate forwards, a fifth contactor KM5 is used for controlling the variable amplitude motor M2 to rotate reversely, and a sixth contactor KM6 used for controlling the oil pump M3. The mast crane control system adopts a remote control switch to realizecontrol, so that workers do not need to carry out on-site transportation, safety accidents are avoided, moreover, when the mast is used for hoisting, ascending and descending limiting and variable-amplitude limiting of a main hook are achieved, the rotation limit of a rotary hydraulic cylinder is achieved, and the limits guarantee that the mast can be normally hoisted.