Ammonium sulfate evaporative crystallization process _ proceed

RufusLinville · Beitrag von **RufusLinville** » 05.09.2022, 08:00

Original Title: Ammonium Sulfate Evaporation Crystallization Process Ammonium sulfate evaporation and crystallization equipment is designed by Kang Jinghui for ammonium sulfate evaporation and crystallization. I. Sources of Ammonium Sulfate At present, ammonium sulfate basically comes from the by-products of non-fertilizer industry, such as coking industry, caprolactam, sulfuric acid tail gas desulfurization, power plant desulfurization, acrylonitrile, methyl methacrylate, zinc oxide and other by-products. Because ammonium sulfate is mostly a by-product, it is mainly discharged from the system in the form of ammonium sulfate aqueous solution, so evaporation, concentration and crystallization become the common process routes for extracting ammonium sulfate. 2. What are the processes of ammonium sulfate evaporation and crystallization equipment? For the environmental protection industry, the ammonium sulfate evaporative crystallization process includes MVR evaporative crystallization treatment equipment, forced circulation evaporative crystallization equipment and DTB evaporative crystallization equipment. 1. Ammonium sulfate evaporation and crystallization equipment adopts MVR evaporation process. Mechanical vapor recompression (MVR) evaporation process is considered to be a potential evaporation process because of its simple and compact structure, cbd crystallization equipment ,cbd centrifugal extractor, stable and reliable operation, simple operation and low requirement for the pretreatment of feed liquid. Ammonium sulfate MVR evaporative crystallizer system is mainly composed of compressor, heater, flash evaporator, circulating pump, etc. 2. Ammonium sulfate evaporative crystallization forced circulation evaporative crystallization process. Brief Introduction of Forced Circulation Evaporation Crystallization Proc 1. Material flow direction: The solution is preheated by the condensate preheater and then enters the first effect evaporator, where it is flash evaporated by heat exchange. The solution after flash evaporation enters the second effect evaporator by the pressure difference between effects for flash evaporation and concentration. The concentrated solution is conveyed to the thickener by the second effect discharge pump through the hydrocyclone, and then enters the centrifuge for solid-liquid separation. Ammonium sulfate crystals can be directly packaged or the crystalline product can be dried The mother liquor returns to the evaporation system after reaching the mother liquor tank. 2. Flow direction of steam and condensed water: the heat source of the first effect heating chamber is raw steam. After the raw steam in the first effect heating chamber is condensed by heat exchange, the condensed water enters the first effect condensed water preheater to preheat the raw materials; The secondary steam generated by the first-effect separation chamber enters the second-effect heating chamber for heat exchange and condensation, the condensed condensed water enters the condensed water tank for collection, and the secondary steam generated by the second-effect separation chamber enters the indirect condenser for condensation and recovery to the condensed water tank. There are many processes in the process of ammonium sulfate evaporation and crystallization, all of which require energy consumption, and some of the unit operations consume considerable energy. Therefore, the understanding of the unit operation principle and process is not only crucial to the understanding of the production process, but also crucial to the energy consumption analysis of the production process. Therefore, the pursuit of energy saving and consumption reduction should first be carried out on the premise of meeting the purpose of production process. The process of ammonium sulfate evaporation and crystallization equipment is not unchanged. It can be said that the production process of inorganic salt crystallizer has been continuously improved since its birth. Its starting point and purpose is nothing but to improve quality or yield, or reduce costs and labor intensity, or reduce environmental pollution,molecular distillation systems, or increase safety and so on. In a word, it is to increase benefits, which should refer to economic and social benefits. Return to Sohu to see more Responsible Editor:. toptiontech.com