4results about How to "No security issues" patented technology

This application discloses a multi-boiler intermodal system, relating to the field of generator set technology. It includes multiple boilers and multiple steam turbines. Each boiler's main steam pipe is connected to a common main steam header. Each steam turbine corresponds one-to-one with one of the boilers. The main steam header distributes main steam to the high-pressure cylinders of each turbine as needed. Each turbine's high-pressure cylinder sends exhaust steam to the boiler reheater via a reheat cold section pipe and a reheater inlet pipe. Each reheat cold section pipe is equipped with a make-up steam pipe. Each boiler reheater sends steam to the intermediate-pressure cylinder of the turbine via a reheat hot section pipe. Each reheat hot section pipe is equipped with an extraction steam pipe. This application can ensure that the main steam, cold reheat, and hot reheat parameters are consistent with the operating requirements of each system device, and can achieve decoupling of the boiler and turbine units, promoting flexible unit operation.

The utility model discloses oil drum dumping equipment, and belongs to the technical field of oil drum oil dumping. The oil drum dumping equipment comprises a base and a dumping assembly arranged on the base, an oil drum containing part is arranged on the dumping assembly, and the dumping assembly can rotate on the base and is used for dumping an oil drum to discharge oil. The oil drum dumping device is used for placing an oil drum, so that the oil drum is convenient and labor-saving to dump or take oil, safety problems are avoided, the oil drum dumping device is high in practicability, solves the problem that the field is limited by an electric hoist or a travelling crane, is suitable for oil filling fields of various devices, and improves the oil filling efficiency. And the defects of high labor intensity, low working efficiency and the like are avoided.

The present invention discloses a method for recovering all elements of nickel-cobalt-manganese-oxide lithium waste, which belongs to the field of waste lithium battery recovery and solves the problems of large reagent consumption, complex process and large amount of sodium sulfate decahydrate that affects production in existing recovery methods. The method of the present invention comprises the following steps: mixing and calcining materials with carbon powder; slurry carbonization; pyrolysis; cyclic acid leaching, utilizing solubility characteristics, and controlling temperature to crystallize and precipitate different sulfates in steps. The present invention greatly reduces the generation of sodium sulfate and improves the fluency and continuity of production. Since there is no large amount of sodium sulfate decahydrate generated, the crystal water in the sodium sulfate decahydrate is prevented from taking away metallic lithium, and lithium loss is significantly reduced. The method of the present invention has a short process, is simple and easy to operate, does not use organic solvents, and saves production costs; does not use hydrogen peroxide, and does not have storage problems, safety problems, environmental problems, and equipment problems.

The present application relates to a long-acting antibacterial polyamide fiber and a preparation method thereof. The long-acting antibacterial polyamide fiber is composed of 4wt%-20wt% nylon-guanidine salt copolymer master batch and 80wt%-96wt% nylon, and the preparation method comprises the following steps: melt blending and reacting polystyrene-guanidine salt copolymer functional material obtained by melt blending and reacting polycyclic epoxy polystyrene synthesized by solution polymerization, suspension polymerization or bulk polymerization and guanidine salt polymer antibacterial agent; then melt blending with nylon to obtain nylon-guanidine salt copolymer master batch; and finally melt blending and spinning with nylon to obtain long-acting antibacterial polyamide fiber. By using the nylon-guanidine salt copolymer master batch of the present application, on the one hand, the antibacterial agent is chemically bonded to the polyamide matrix, ensuring the long-acting antibacterial property of the fiber; on the other hand, the antibacterial agent is enriched on the surface of the antibacterial polyamide fiber. The long-acting antibacterial polyamide fiber exhibits excellent antibacterial performance at a lower antibacterial agent dosage, thereby simultaneously maintaining good mechanical properties.