3results about How to "Suitable for large-scale continuous production" patented technology

The utility model relates to the technical field of medicine fertilizer production, concretely is a kind of medicine fertilizer intelligent proportioning mixing device, including bottom plate, the bottom plate top one side fixed mounting has control module, the middle part fixed mounting of bottom plate top has four weighing modules, the top of four weighing modules is fixedly connected with the lower end of support frame, the upper end of support frame is annular, the inner side surface of support frame upper end is fixedly connected with the side of mixing tank, the lower end of mixing tank is inverted conical, the feed inlet of mixing tank top is connected with two feed pipes respectively, the both sides of bottom plate top are installed with the raw material conveying mechanism of conveying raw material to two feed pipes, this medicine fertilizer intelligent proportioning mixing device, ensure that two raw materials are accurately conveyed according to preset ratio, substantially reduce proportioning error, improve medicine fertilizer quality stability, avoid local raw material deposition, significantly improve mixing uniformity, ensure that medicine fertilizer each part component is consistent.

The application relates to the technical field of inorganic chemical synthesis, in particular to a sodium carbonate preparation method based on ternary synthesis technology. The method takes sodium chloride, liquid ammonia and carbon dioxide as ternary raw materials, and through a'segmented carbonization-gradient temperature control crystallization-CO2 closed loop recovery-mother liquor optimization treatment' synergistic process, first, uniform crystal nuclei are induced through low-temperature pre-carbonization, then, sufficient reaction is promoted through medium-temperature deep carbonization, and the crystal structure is optimized by combining gradient cooling crystallization and aging, and the efficient recycling of carbon, ammonia and salt resources is realized. The application improves the carbon dioxide utilization rate and the product purity, optimizes the crystal particle size uniformity, reduces the energy consumption and the environmental protection load, the process is stable and easy to control, and has strong industrialization adaptability, and the obtained sodium carbonate can meet the strict requirements in the fields such as food processing, and has economic and environmental benefits.

The invention provides copolymerized polyamide-imide, a film, a preparation method and an electronic device, and belongs to the field of flexible display materials. The copolymerized polyamide-imide is at least prepared from a reaction system containing the following monomers: a) a fluorine-containing aromatic dianhydride monomer; b) an aromatic diamine monomer containing ether bonds and fluorine; and c) an aromatic diacyl chloride monomer. The copolymerized polyamide-imide disclosed by the invention is prepared by carrying out polycondensation and chemical imidization on a dianhydride component, a diamine component and an acyl chloride component in a polar solvent; a rigid benzene ring structure and a hydrogen bond in a main chain can improve the modulus to be larger than or equal to 6 Gpa, the size stability is high, the thermal expansion coefficient is smaller than or equal to 10 ppm / DEG C, meanwhile, a large-steric-hindrance side group of a benzene ring on the main chain can effectively improve the optical performance of the thin film, light transmittance is prevented from being affected by low-temperature dropwise adding and step-by-step imidization (the light transmittance of the waveband of 360-780 nm is larger than or equal to 88%), the benzene ring structure containing an ether bond on the main chain, and the light transmittance of the thin film is larger than or equal to 80%. The tearing strength of the membrane material can be effectively improved.