50results about How to "Hazardous security" patented technology

The invention relates to a mercury recovering and residue harmless treatment process for a waste mercury catalyst. On the basis of the technological process of an existing distillation method, a technology processing method involving a high temperature rotary kiln, a second combustion chamber, quenching and activated carbon adsorption is added to waste activated carbon residues discharged out of adistilling furnace, so that the residues produced by the distilling furnace are completely converted into common solid waste residues and duly handled, and the problem that the residues cause secondary environment pollution in the previous technological process and need to be transferred to a unit with the further handling qualification is solved.

The invention relates to the technical field of underground mine ventilation equipment, in particular to a mine gas, blasting fume and dust separation ventilation system. The system comprises fans and a blowdown stack; the top of a mine main roadway is provided with a main air return channel which is connected with the blowdown stack; the tops of branch roadways on two sides of each stope of a mine are provided with branch air return channels which are communicated with the main air return channel of the mine so as to form a double-air inlet double-air return system of the stope; the fans are arranged on the connection parts of the branch air return channels and the main air return channel; one end of each branch air return channel is connected with the fan, and the other end of each branch air return channel is provided with an air inlet; and each branch air return channel is provided with a ventilation control device which consists of exhaust openings formed in the sides of pipe bodies of the branch air return channel and valves matched with the exhaust openings. Different air flow of each section of the roadway and the requirement can be adjusted. The separation ventilation system is also suitable for ventilation of other underground mines.

The invention provides laying equipment which comprises a mounting platform and a lifting device. The mounting platform can move along mounted tracks arranged at the bottom of a bridge and is used for placing to-be-mounted tracks. The lifting device is mounted on the mounting platform and is used for lifting the to-be-mounted tracks to the butt joint position of the bottom of the bridge and the mounted tracks. Through the lifting device, the to-be-mounted tracks can be lifted to the appointed position without redundant manpower, manpower is replaced by the mechanical equipment, the load borne by the whole mounting platform can be greatly decreased, meanwhile, the situation that shaking of a whole truss platform in the sky is prone to being caused by operating workers in the moving process can further be avoided, stability of the whole device under a working state is improved, and security problems are avoided.

The invention discloses a wind power generation controller failed remote upgrade recovery method based on ARM. The wind power generation controller failed remote upgrade recovery method comprises (1) sending an upgrade instruction to an ARM processor, entering a Bootloader after the upgrade instruction is received; (2) sending a jump instruction to the Bootloader and jumping to an upgrade application APP1; (3) controlling the APP1 to receive upgrade data, erasing the FLASH address of the application to be upgraded first, then starting to upgrade the FLASH write-in of data, and finally obtaining the upgraded application APP2; (4) sending an upgrade complete instruction to the APP1, entering the Bootloader, and verifying the size of the APP2, if the verification result is correct, jumping to the APP2 and completing the upgrade; if the verification result is incorrect, waiting for a host computer to send a new upgrade instruction. According to the invention, the problem that after the upgrade process is interrupted, the system cannot hang up the upgrade task again is solved.

The invention discloses a turbo generator unit force oscillation detection and control method and system. The turbo generator unit force oscillation detection and control method comprises the steps ofmeasuring the rotating speed of a turbo generator unit and power grid frequency in real time; calculating the difference value between the rotating speed of the turbo generator unit and the corresponding rotating speed of the power grid frequency; judging whether the difference value between the rotating speed of the turbo generator unit and the corresponding rotating speed of the power grid frequency exceeds the set value or not, and if the difference value exceeds the set time, beginning to carry out timing and carrying out counting; when the time number that the difference value exceeds the set value is up to the set time number, considering that the turbo generator unit is being in oscillation, sending primary frequency modulation exiting and coordination control mode instructions tothe turbo generator unit, and giving out an alarm signal; and if the difference value in one minute cannot be up to the set time number, carrying out counting again. Force oscillation can be detected,and can be prevented from continuously happening, and the danger of long-time oscillation of the turbo generator unit to the unit safety can be prevented.

The invention provides a system and method for gravity dust removal and ash discharging of a blast furnace. The system comprises a gravity dust collector and a middle ash bin, wherein the gravity dustcollector is connected with the middle ash bin through an ash discharge pipeline, a joint between the ash discharge pipeline and the gravity dust collector is located at the lower part of a grid in the gravity dust collector, and a diffusion pipeline is arranged at the top of the middle ash bin; and a star-shaped cinder valve is arranged on a discharge port in the bottom of the middle ash bin, the bottom of the middle ash bin is connected with a suction and discharge tanker through a nitrogen conveying loop, and the side edge of the middle ash bin is connected with a nitrogen purging and pressure equalizing loop and a nitrogen balance fluidization loop. According to the system and method, by arranging the middle ash bin and arranging the diffusion pipeline, the nitrogen purging and pressure equalizing loop and the nitrogen balance and fluidizing loop on the middle ash bin, the pressure difference between the middle ash bin and the gravity dust collector in the ash discharging processis controlled, and the problems that because existing gravity dust collection gas ash contains blast furnace gas and the blanking pressure difference is large, a pipeline valve is abraded is solved, and the smooth, safe and efficient ash discharging and conveying of gravity dust removal ash materials are achieved.

The invention provides a self-service bill paying system based on radio frequency identification. The self-service bill paying system comprises a control computer, radio frequency identification tags,a radio frequency identification reader-writer, a display module and a self-service bill paying device. The radio frequency identification tags stores commodity information, and each commodity is provided with a radio frequency identification tag. The radio frequency identification reader-writer is connected with the control computer in a communication mode for identifying information of the radio frequency identification tags. The display module is electrically connected to the control computer, and the self-service bill paying device is electrically connected to the control computer. The control computer is used for judging whether the commodities are expired or not. According to the self-service bill paying system based on the radio frequency identification, the radio frequency identification tags are introduced on the basis of an existing self-service bill paying device, and the shelf life of the commodities is judged through the recorded commodity information, so that the commodity quality of commercial retail enterprises is effectively guaranteed, and customers are avoided to buy expired commodities which endanger the health and safety of the customers.

The invention relates to the technical field of vehicle isolation devices, and discloses a vehicle isolation device for an highway toll station. The vehicle isolation device comprises a top plate, the lower surface of the top plate is fixedly connected with a shell, the upper surface of the top plate is provided with a plurality of circular through holes, and the hole walls of the circular through holes are fixedly connected with rolling bearings; the inner wall of the rolling bearing is fixedly connected with a threaded cylinder, the inner wall of the threaded cylinder is in threaded connection with a threaded rod, the inner wall of the shell is fixedly connected with a driving mechanism, and the upper surface of the top plate is fixedly connected with an alarm mechanism. The threaded rod can freely move up and down, so that the vehicle isolation device can adapt to different vehicles, the universality of the isolation device is improved, the illegal vehicle detention escape behavior can be effectively avoided, and the safety of vehicles and personnel around a toll station is guaranteed.

The invention relates to a closed storage tank cathode protection potential monitoring device. The monitoring device comprises a monitor and a reference electrode, wherein the monitor is connected with the reference electrode through a cable, the monitor is connected with a closed storage tank through the cable, the reference electrode is located in the closed storage tank, and the monitor is located outside the closed storage tank. According to the closed storage tank cathode protection potential monitoring device, the cathode protection potential of the closed storage tank (sacrificial anode/forced current) can be monitored in corrosive environments with high H2S content, high temperature, high salt-containing oil-gas-water and the like, and the effect of cathodic protection on the innerwall of the storage tank is evaluated so as to be adjusted in time, so that the service time of equipment is prolonged.

The invention discloses a hardness detection device for an all-glass vacuum blank tube, and belongs to the field of hardness testing. The hardness detection device comprises a box body, support platesfixedly connected to two sides of the upper part of the box body, a top plate fixedly connected to the upper parts of the support plates, a mounting frame mounted at the upper part of the top plate,a driving motor fixedly connected to the right side of the mounting frame, and a screw rod fixedly connected to the left side of the driving motor, a movable block is in threaded connection with the middle of the lead screw, an electric telescopic rod is fixedly connected to the lower portion of the movable block, a pressure sensor is installed on the lower portion of the electric telescopic rod,a hydraulic rod is fixedly connected to the lower portion of the top plate, a fixing plate is fixedly connected to the lower portion of the hydraulic rod, and a protective cover is installed on the lower portion of the fixing plate.A clamping seat is fixedly connected to the middle of the upper part of the box body; A clamping sleeve is installed on the upper portion of the clamping base, and a fixing screw is in threaded connection with the upper portion of the clamping sleeve. The device is simple in structure, capable of protecting the safety of detection personnel and collecting detected waste, high in practicability and worthy of use and popularization.

The invention relates to a method and system for testing the internal condensation condition of a battery. The method for testing the internal condensation condition of the battery comprises the following steps: acquiring real internal condensation parameter information of the battery; establishing an equivalent substitution model of a real battery according to the water condensation parameter information; detecting the equivalent substitution model in the equivalent test environment working condition, and acquiring the equivalent condensate amount of the equivalent substitution model; according to the equivalent condensed water amount, obtaining a real condensed water amount in a real battery. Therefore, by establishing the equivalent substitution model, the real condensate amount in thereal battery can be obtained; meanwhile, the equivalent substitution model can be disassembled, assembled and replaced at any time, the test cost is lower than the test cost of the real battery, and through the equivalent substitution model, the safety of experimental equipment personnel is prevented from being harmed due to high-voltage leakage of the real battery.

The invention belongs to the technical field of machining equipment, and particularly discloses a deburring mechanism. The deburring mechanism comprises a support column, and an adjustment guide railis mounted on the upper end of the support column; a guide rail seat is mounted on the upper end of the adjustment guide rail, and a guide rail is arranged on the guide rail seat in a penetrating mode; a nut mechanism is installed at one end of the guide rail, and a deburring disc seat is installed at the other end of the guide rail; the deburring disc seat comprises a drive motor, and the drive motor is sequentially connected with an input shaft, a flexible shaft and a transmission shaft; the input shaft is sleeved with a disc, and the input shaft is connected with the flexible shaft; the transmission shaft is sleeved with a fixing seat, and a plurality of springs are arranged between the disc and the fixing seat; a deburring disc is connected to the transmission shaft, and the deburringdisc is rotatably connected with the fixing seat; a recessed cavity is formed inside the deburring disc, and one end of the transmission shaft extends into the recessed cavity and is provided with fanblades; and the side wall of the recessed cavity is symmetrically provided with one-way valves, the fixing seat is provided with rotating joints in a penetrating mode, and a protective disk is arranged on the periphery of the deburring disc. According to the technical scheme, burrs on the surfaces of workpieces can be effectively removed, and the safety of workers during the operation can be ensured at the same time.

The invention discloses an aero-engine blade fluorescent penetrant detection device and a use method, and belongs to the technical field of aero-engine blade detection. The aero-engine blade fluorescent penetrant detection device comprises a mounting shell, and the inner wall of the mounting shell is rotationally connected with a fixed cylinder; in the detection process, the suction nozzle is used for sucking and fixing the airspace engine blade, on one hand, the arc-shaped engine blade can be sucked and fixed, the situation that the detection is affected due to the fact that the engine blade shakes in the detection process is avoided, and on the other hand, clamping of a clamping piece on the engine blade is avoided, so that the detection efficiency is improved. The whole surface of the engine blade can be completely detected, the situation that the edge of the engine blade is blocked due to the fact that a clamping piece is used, complete detection cannot be conducted, and the quality of the produced engine blade is affected is avoided, the engine is automatically overturned and fixed through butt joint of installation grooves in a fixing cylinder and a switching cylinder, manual disassembly and assembly are not needed, and the production efficiency is improved. The workload of workers can be reduced, and the damage to the engine blade during disassembly and assembly can be reduced.

The invention discloses a fire air disaster air particulate pollutant environmental protection treatment projection egg and relates to the technical field of environmental protection. The fire air disaster air particulate pollutant environmental protection treatment projection egg comprises an impact bottom shell. A magnetic adjusting mechanism is fixedly connected to the middle position of the bottom of an inner cavity of the impact bottom shell. A magnetic tightening mechanism is movably connected to the position, located on the outer portion of the magnetic adjusting mechanism, of the top of a limiting plate. The end, far away from the magnetic tightening mechanism, of a tightening string is connected with a bow-shaped catapulting part. The bottom of an inner cavity of a projection eggouter shell is provided with an air bag. The inner surface of a shielding plate is slidably connected with a suspension guide mechanism. A dry ice storage egg is arranged in the middle position, located above the suspension guide mechanism, of the inner cavity of the projection egg outer shell. Through the fire air disaster air particulate pollutant environmental protection treatment projection egg, the air is condensed moisture, the moisture is attached to particulate pollutants, the weight of the particulate pollutants is increased, the particulate pollutants drip, the temperature of the ambient environment is reduced, and superheating evaporation is avoided, so that the particulate pollutants are cleaned more efficiently and thoroughly, the perniciousness of a fire is reduced, the ambient environment can be protected, and the fire air disaster air particulate pollutant environmental protection treatment projection egg effectively guarantees security of personnel through close contact.