560results about How to "Reduce the risk of explosion" patented technology

The present invention relates to the regeneration of adsorbent matrices that are used for the purification of substances from aqueous liquid samples derived from biological material. The method is adapted to adsorbent matrices that are sensitive to hydrolysis either because of a sensitive base matrix or a sensitive ligand including also a sensitive spacer a n d is characterized in contacting at least one regeneration solution with the adsorbent matrix which comprises an organic solvent which is water-miscible and has a pH value ≦4, preferably ≦3 (acid solution) or ≧10 but <13 (alkaline solution).

A method and apparatus for ensuring against explosion of the gaseous atmosphere of a closed chamber, such as the QDCD room of an internal turret of an offshore production and offloading buoy wherein the closed chamber has production risers and conduit connectors that represent a potential source of flammable gas. The method comprises mixing and diluting the oxidant content of the air by introducing within the closed chamber a sufficient quantity of inert gas to render the mixture of the air and any flammable gas non-combustible regardless of the flammable gas content of the mixture. The method includes removal of the non-combustible mixture of air and any flammable gas from the closed chamber by purging thereof to the natural atmosphere, while introducing inert gas, thereby leaving a substantially inert atmosphere within the closed chamber. The turret system provides for control of the gaseous atmosphere within the closed chamber at all modes of turret operation, including the idle, on-line and ventilation modes and also provides for gas pressure control to accommodate normal operating conditions and conditions of gas leakage into the chamber.

The invention is applied in the industries of medicine, air compression, natural gas, synthetic ammonia, oil refining, coking and the like, and relates to a gas-liquid separation device. The device comprises a shell, an air inlet pipe and an exhaust pipe; a drum driven to rotate by a power device is arranged in the shell; the wall of the drum is provided with air holes; a partition plate is arranged in the drum to partition the drum into an air inlet end and an exhaust end which are respectively communicated with the air inlet pipe and the exhaust pipe; the air inlet pipe is communicated with the exhaust pipe through the air inlet end of the drum, the air holes in the wall of the drum, an air passage and the exhaust end of the drum; and the shell is provided with a drain pipe. Through the device, the separation efficiency of liquid particles with the diameters of over 0.1 micron reaches over 99.5 percent; and the device is large in treated gas quantity and suitable for wet gas with high liquid content, does not require circulation of a large quantity of washing absorption liquid, does not require a high-voltage electrostatic system, has good adaptability to the physical properties of the liquid, has certain capability of separating dry gas components with different densities, and is small in volume, light in weight, small in occupied space and low in manufacturing cost.

The present invention is in the field of bioelectricity. The present invention provides energy generating systems, methods, and devices that are capable of converting chemical energy stored in sugars into useful electricity.

The invention discloses a multi-station circular-disc type novel numerical control automobile hub polishing machine. The multi-station circular-disc type novel numerical control automobile hub polishing machine comprises a revolution circular disc assembly in the middle. Autoroatation hub clamp assemblies of multiple stations are evenly arranged on the revolution circular disc assembly in the circumferential direction at equal angles. Asynchronous polishing wheel assemblies of the stations and a loading and unloading station of one station are arranged around the autoroatation circular disc assemblies and correspond to the autoroatation hub clamp assemblies of all the stations. The polishing wheel assembly of each station comprises a three-direction displacement component and a polishing wheel machine head component deflecting at the preset angle along the horizontal axis and arranged on the three-direction displacement component. The polishing machine can achieve four-axis linkage and automatic compensation for the polishing wheel wear radius, and therefore production efficiency is improved greatly; meanwhile, the application range of complex-spoke hub polishing is enlarged, and the stable and consistent hub polishing quality is guaranteed; and the requirement on the experience of operators is lowered, and thus production efficiency and economic benefits are improved.

The invention relates to a method for producing monocyclic ketones C₄-C₅. The inventive method is based on the reaction of a liquid-phase oxidation of monocyclic alkenes C₄-C₅ into corresponding cyclic ketones by nitrogen oxide or the mixture thereof with an inert gas. The process is carried out at a temperature ranging from 20 to 300° C. and a pressure of nitrogen oxide ranging from 0.01 to 100 atm. The inventive process ensures the high selectivity with respect to target products, the explosion safety at work and is promising for industrial use.

The invention discloses a multi-station disc type novel numerical control polishing machine for pot type workpieces. The multi-station disc type novel numerical control polishing machine comprises a rotating disc assembly arranged in the middle. Multi-station pneumatic sucker components are evenly arranged in the circumference direction of the upper surface of the rotating disc assembly with equal angles. A loading and unloading station is arranged in the position, corresponding to one pneumatic sucker component, of the periphery of the rotating disc assembly. Single-polishing wheel assemblies and/or double-polishing wheel assemblies are arranged in the positions, corresponding to the rest of the pneumatic sucker components, of the periphery of the rotating disc assembly. The single-polishing wheel assemblies comprise three-direction displacement components and single-polishing wheel machine head components arranged on the three-direction displacement components. The double-polishing wheel assemblies comprise two-direction displacement components and double-polishing wheel machine head components arranged on the two-direction moving components. The multi-station disc type novel numerical control polishing machine for the pot type workpieces is provided with the single-polishing wheel assemblies and the double-polishing wheel assemblies so that the multi-station disc type novel numerical control polishing machine can meet the requirement for polishing of side walls and bottom faces of pot type workpieces with different shapes and different sizes, the production efficiency is greatly improved, meanwhile, it is ensured that the polishing quality of the pot type workpieces is stable and consistent, occupied area is saved, energy consumption is reduced, and the production efficiency and the economic benefits are greatly improved.

The invention provides a magnetic separation enhanced type electromagnetic thermal desorption method and device for remediating contaminated sites. The method is characterized in that ferromagnetic materials, such as reducing iron powder, are doped into contaminated soil in an ex-situ mixing and stirring manner, the contaminated soil spirally stirred is heated by using electromagnetism, and a thermal desorption heat transfer gasifying effect is improved through the in-situ electromagnetic eddy heating of the ferromagnetic materials; the reaction activity and oxidation reduction capability of the ferromagnetic materials are improved when the ferromagnetic materials produce heat; after thermal desorption is finished, the ferromagnetic materials of which the surfaces react and adsorb pollutants can be separated from the contaminated soil through magnetic separation, recycled and reutilized; and the continuous remediation of contaminated soil is realized. The device also can be used for the in-situ remediation of contaminated soil. After the ferromagnetic materials are added to the soil in situ through a ploughing stirring device, the soil is heated in situ by utilizing an electromagnetic induction coil to carry out excitation eddy heating in the contaminated soil, pollutants are desorbed, and at the same time, the reaction activity of the magnetic materials(for example, reducing iron powder) can be improved; and after reaction is finished, the iron powder can be separated from the contaminated soil through a magnetic separation technology. The device also can be placed in soil to realize in-situ oxidation reduction degradation. The method and device are suitable for the in-situ thermal desorption remediation of circumjacent large area of low-concentration contaminated soil.

This invention involves the mixtures of oxides of nitrogen and oxygen (O₂) as the oxidizing component in propulsion, gas generation and power generation applications. Advantages of the oxidizers of the inventions may be self pressurization, high density, density impulse, higher operational temperatures, and high Isp performance. The invention provides devices, methods and compositions related to the disclosed oxidizers.

The invention discloses a combined production method for substituted benzaldehyde, substituted benzyl alcohol and substituted benzoic acid. The method comprises the following steps: (1) oxidation: a step of continuously introducing substituted toluene, a catalyst and oxygen-contained gas into an oxidation reactor and carrying out reaction so as to obtain oxidation reaction liquid; (2) hydrolyzation: a step of allowing the oxidation reaction liquid to continuously enter a hydrolysis reactor, and continuously adding water into the hydrolysis reactor and carrying out reaction so as to obtain a hydrolysis reaction mixture; (3) liquid-liquid layering: a step of layering the hydrolysis reaction mixture so as to obtain an oil phase and an aqueous phase; and (4) separation of products: a step of subjecting the oil phase to distillation so as to respectively obtain incompletely-reacted substituted toluene, substituted benzyl alcohol and substituted benzaldehyde, and subjecting the aqueous phase to cooling, crystallizing and filtering so as to obtain filtrate and substituted benzoic acid. The combined production method provided by the invention has the advantages of high raw material conversion rate, few by-products, good selectivity of target products, greenness and environmental protection.

Disclosed is a housings for lithium based batteries, suitable for large format batteries, and a method of manufacturing such housings using direct electroplating resin technology. The housing, while maintaining stack pressure and acting as a moisture and electrolyte barrier, is lighter in weight, smaller in volume, and is safer than conventional metal housings. The manufacturing process is well suited for automation and is less expensive than current manufacturing processes.

The invention provides a lithium ion secondary battery, a composite positive electrode active material thereof and a preparation method. The composite positive electrode active material is prepared by compositing a lithium cobalt series oxide and lithium manganese phosphate (LMP). The composite positive electrode active material has a filling structure formed by filling and compositing primary particles of LMP in gaps and pits in the surfaces of secondary particles of the lithium cobalt series oxide, wherein the chemical general formula of the lithium cobalt series oxide is LiAxCo<1-x>O2; x is not less than 0 and is less than 1; A is at least one of Ni, Mn, Al, Mg, Ca, Cr, Zr, Mo, Ag and Nb; the chemical general formula of LMP is LiByMn<1-y>PO4; x is not less than 0 and is less than 1; B is at least one of Ni, Co, Fe, Al, Ca, Zn, Mg, Mo, Pb and Zr. The lithium ion secondary battery comprises the composite positive electrode active material. The lithium ion secondary battery has good capacity density, rate performance, cycle performance, storage performance and safety performance.

The invention discloses an industrial plant heating and dustless and volatile organic chemicals (VOCs) near zero emission process, which substantially comprises steps: (1) VOCs in industrial plants is collected by utilizing a gas collecting system, and waste gas is collected; (2) the waste gas which is collected in the step (1) is conveyed to a waste gas treatment device, and the VOCs is treated; and (3) gas which is treated in the step (2) is conveyed to plants through a gas send-back system, and is recycled. The industrial plant heating and dustless and volatile organic chemicals (VOCs) near zero emission process enables plants not to have dust and heating, and enables VOCs to be discharged near zero or at zero.

A lithium secondary battery that has a battery cell structure, with improved electrochemical stability between an electrode and an electrolyte. In addition, the lithium secondary battery improves ion conductivity while applying a solid electrolyte. More specifically, a lithium secondary battery comprising a separator formed by an electrolyte between the cathode and the anode, wherein a composite coated layer of lithium-lanthanum-titanate (Li_xLa_yTiO₃) and lithium-lanthanum-zirconium-oxide (Li₇La₃Zr₂O₁₂) is formed on the interface of the anode and the electrolyte.

This invention relates to an aluminum pouch film for a secondary battery and a manufacturing method thereof, the aluminum pouch film including: an aluminum layer; an outer resin layer formed on the first surface of the aluminum layer; a first adhesive layer for adhering the aluminum layer to the outer resin layer; an inner resin layer formed on the second surface of the aluminum layer; and a second adhesive layer for adhering the aluminum layer to the inner resin layer.

The invention discloses a bag clamping device. The bag clamping device comprises a bracket, a bag clamping cylinder, bag opening mechanisms and a bag warehouse are arranged on the bracket, a rail is arranged on the bracket, the bag clamping cylinder and the bag warehouse are sequentially distributed along the rail, a bag clamping mechanism is arranged on the bag clamping cylinder, and the bag opening mechanisms are distributed on the two sides of the bag clamping cylinder, can move along the rail and comprise suction cups; the bag opening mechanisms move to the side of the bag warehouse, packaging bags in the bag warehouse are sucked through the suction cups, the bag opening mechanisms move to the bag clamping cylinder, the packaging bags are adsorbed and pulled from two sides through the suction cups, the packaging bags are opened and arranged on the bag clamping cylinder in a sleeving manner, and the bag clamping mechanism clamps the packaging bags from the two sides; and integral design is achieved, automatic bag taking, bag opening, bag clamping and filling are continuously completed, the structure is simple, the occupied area is small, the cost is low, the device is particularly suitable for transformation and upgrading of existing packaging equipment, the packaging production efficiency is improved, labor intensity is reduced, the number of operators on site is reduced, and the safe level of the industrial explosive production line is improved.

The invention relates to the technical field of fuel cell cars, and aims at providing a safe and explosion-proof hydrogen fuel installation unit electric-control initiative hydrogen discharging system. According to a technical scheme, the FCEV (Fuel Cell Electric Vehicle) hydrogen fuel installation unit electric-control initiative hydrogen discharging system comprises an electric control unit ECU,an explosion-proof hydrogen storage apparatus, a fuel cell and a hydrogen discharging apparatus, the hydrogen discharging apparatus comprises a buffer tank, a nitrogen tank, a water trough and an exhausting pipe, a branch pipe which is arranged on a hydrogen supply pipeline between the explosion-proof hydrogen storage apparatus and the fuel cell is connected with one end of the buffer tank, the branch pipe is provided with a second electromagnetic valve, and the other end of the buffer tank is separately connected with the water trough and the hydrogen supply pipeline by virtue of the hydrogen discharging pipeline and a reflux pipeline. One end of the nitrogen tank is connected to the hydrogen discharging pipeline by virtue of a pipeline, a pipeline adopted by the hydrogen supply pipelineand the hydrogen discharging pipeline is a pipeline with an expansion structure and comprises a straight pipe section and an expansion section formed by expanding the pipeline, and the expansion section and the straight pipe section are interconnected to form a whole body. The safe and explosion-proof hydrogen fuel installation unit electric-control initiative hydrogen discharging system is convenient in operation, safe and explosion-proof.

A safety system for reducing the explosion risk of a fuel tank comprises a protective gas generating device and a delivery device for delivering the protective gas generated by the protective gas generating device into the fuel tank. The protective gas generating device (24) comprises a fuel cell system (26) having a fuel cell (28) and is configured so as to provide the delivery device (14) with a protective gas generated by the fuel cell (28) during operation of the fuel cell system (26).

In order to overcome the problems of fire risks and explosion risks of the exiting power batteries, the invention provides a battery security protection device. The battery security protection device comprises a battery shell, a battery module and a fire extinguishing device, the battery module and the fire extinguishing device are packaged in the inner cavity of the battery shell, the fire extinguishing device comprises a material storage part and a temperature control valve, a fire extinguishing agent is held in the material storage part, the temperature control valve is connected with the material storage part and is used for connecting the inner cavity of the material storage part with the inner cavity of the battery shell at a certain temperature. The battery security protection device provided by the invention can extinguish the fire in the case of fire of the battery module so as to reduce the explosion risk.