7results about How to "Simple filter" patented technology

The invention relates to the technical field of copper powder preparation, and provides a preparation method of liquid-phase in-situ self-assembly nano-shell-coated micron-core composite copper powder, a specific inducer is introduced into a liquid-phase reduction system, copper sulfate is adopted as a copper salt, and sodium hypophosphite or VC is adopted as a reducing agent, so that one-time forming of a micron-core-nano-shell composite structure is realized; the problems of non-uniform particle size distribution, high energy consumption, low yield and the like in a traditional copper powder preparation method are effectively solved; according to the prepared composite copper powder, the low-temperature sintering driving force brought by the nanometer shell layer is obtained while the process-friendly characteristics of being easy to filter, easy to wash, easy to dry and the like of micron powder are reserved, the initial sintering temperature can be reduced to about 150 DEG C, and the machining performance of the copper powder under the low-temperature condition is remarkably improved.

The invention discloses cation modified nano graphene oxide and a preparation method thereof, the transverse size of the cation modified nano graphene oxide is 10-100 nm, the surface of the cation modified nano graphene oxide is non-covalently bound with organic quaternary ammonium salt cations through electrostatic interaction, and the organic quaternary ammonium salt cations are provided by a cationic surfactant. According to the invention, electrostatic interaction is combined with a quaternary ammonium salt cationic surfactant, and a hydrophobic long alkyl chain of the quaternary ammonium salt cationic surfactant is exposed outwards, so that the product can be stably dispersed in various organic solvents such as methanol, ethanol, acetone, ethyl acetate, N-methyl pyrrolidone (NMP), N, N-dimethylformamide (DMF), dichloromethane and the like; the limitation that traditional nano graphene oxide is only limited to a water phase is avoided, and the compatibility and application potential in the fields of polymer composite materials, oil paint, high-performance resin and the like are improved.

The invention discloses a multi-source wake-up low-power-consumption standby control circuit and a household storage system, the multi-source wake-up low-power-consumption standby control circuit comprises a low-power-consumption standby circuit, the input end of the low-power-consumption standby circuit is connected with a battery module, a wake-up module and an MCU module, and the output end of the low-power-consumption standby circuit is connected with a power conversion module. According to the invention, the system can cover the whole scene for multi-source wakeup, can achieve ultra-low power consumption standby, is high in electrical isolation reliability, and guarantees the working capability stability and recoverability of a household storage system under severe conditions.

The sterile henhouse for laying hen breeding comprises a henhouse body and a supporting net installed at the lower middle end in the henhouse body and used for containing objects, the top end of the henhouse body is fixedly connected with a henhouse roof, and the lower right end of the henhouse body is connected with blow-off pipes through bolts at equal intervals; a cross beam is fixedly connected to the upper middle end of the interior of the henhouse body, a supporting pipe is rotationally connected to the middle position of the cross beam, and a liquid storage box is connected to the bottom end of the supporting pipe through a bolt; a water tank is placed on the lower left side of the henhouse body, a first connecting pipe is placed in the water tank, the upper end of the first connecting pipe is in bolted connection with a water pump, and the upper end of the water pump is in bolted connection with a second connecting pipe; and a detachable filtering assembly is placed on the right side of the blow-off pipe. According to the sterile chicken house for laying hen breeding, excrement can be conveniently and fully cleaned, disinfectant fluid can be conveniently and evenly dispersed in a room, and meanwhile waste water can be easily filtered.

The application relates to the technical field of fine chemical production, and particularly discloses a crystallization process of short-rod-shaped ivermectin, which comprises the following steps: dissolving ivermectin crude product in a crystallization solvent, heating to 50-55 DEG C, adding a crystallization agent, uniformly mixing, then cooling to 35-40 DEG C at a rate of 0.1-0.3 DEG C / min, adding ivermectin crystal seeds, continuously cooling to 5-15 DEG C, and incubating and crystallizing to obtain ivermectin products. The crystallization process of ivermectin provided by the application realizes effective control of the particle size and crystal habit of ivermectin products in the crystallization process by adopting a combination strategy of selecting a specific crystallization solvent, adding a crystallization agent and crystal seeds at specific stages, controlling the cooling rate and the incubation time, obtaining short-rod-shaped ivermectin products with uniform particle size distribution, and the products have good fluidity, are convenient for subsequent preparation application, do not need repeated crystallization for multiple times, effectively reduce the cost of the crystallization process, and have extremely high practical application value.

The utility model belongs to the technical field of ore cleaning, and particularly relates to tailing ore cleaning equipment which comprises a screen body and a collecting device, a plurality of spray pipes are fixedly connected to the surface of the screen body, and two supporting frames are fixedly connected to the bottom end of the screen body. The collecting device is arranged under the screen body and comprises a storage box, the storage box is located under the screen body, the bottom end of the storage box is rotationally connected with a plurality of supporting wheels, the upper surface of the storage box is fixedly connected with two placing plates, filter screens are inserted into the inner walls of the two placing plates, a fixing device is arranged on the surface of the water pipe, and the fixing device comprises a placing block. The inner surface of the placing block is fixedly connected with the surface of the water pipe, the inner surface of the placing block is rotatably connected with two threaded rods, and the surfaces of the threaded rods are in threaded connection with clamping rings; and through the whole device, wastewater can be conveniently collected, and meanwhile, the wastewater can be simply filtered, so that subsequent cyclic utilization is facilitated.

This invention relates to the field of preparation technology of terephthalic acid dicamphor sulfonate organic amine salt, and particularly to a method for synthesizing terephthalic acid dicamphor sulfonate organic amine salt, comprising the following steps: neutralizing camphor sulfonic acid with an organic amine compound in a solvent to generate camphor sulfonate organic amine salt; and condensing camphor sulfonate organic amine salt with terephthalaldehyde under the catalysis of a non-metallic organic alkaline catalyst to obtain terephthalic acid dicamphor sulfonate organic amine salt. The method employs an organic amine neutralization and non-metallic organic alkaline catalytic system, avoiding the introduction of metal ions throughout the process. The product is terephthalic acid dicamphor sulfonate organic amine salt, and no subsequent ion exchange treatment is required, resulting in higher product safety, making it particularly suitable for high-end applications such as sunscreen cosmetics.