硫酸铵多为副产物，以硫酸铵水溶液形式排出，因此蒸发、浓缩、结晶成为了硫酸铵常用的工艺路线，今天小编和大家一起聊聊硫酸铵多效蒸发结晶工艺。
Ammonium sulfate is mostly a by-product, which is discharged in the form of ammonium sulfate aqueous solution. Therefore, evaporation, concentration and crystallization have become the common process routes of ammonium sulfate. Today, I want to talk about the multi effect evaporation and crystallization process of ammonium sulfate with you.
硫酸铵工业废水严重污染环境，通过蒸发结晶工艺对废水中的硫酸铵进行回收再利用，既减少了水污染，又能回收利用有价值的农业产品。硫酸铵目前基本来源于炼焦行业、已内酰胺、硫酸尾气脱硫、电厂脱硫、丙烯腈以及甲基丙烯酸甲酯、氧化锌等副产。
Ammonium sulfate industrial wastewater seriously pollutes the environment. The recovery and reuse of ammonium sulfate in wastewater through evaporation crystallization process can not only reduce water pollution, but also recycle valuable agricultural products. At present, ammonium sulfate basically comes from coking industry, caprolactam, sulfuric acid tail gas desulfurization, power plant desulfurization, acrylonitrile, methyl methacrylate, zinc oxide and other by-products.
针对硫酸铵进行蒸发结晶处理，常见工艺有多效蒸发结晶工艺、MVR蒸发工艺，今天小编讲解硫酸铵多效蒸发结晶工艺。
For the evaporation crystallization treatment of ammonium sulfate, the common processes include multi effect evaporation crystallization process and MVR evaporation process. Today's editor will focus on the multi effect evaporation crystallization process of ammonium sulfate.
硫酸铵蒸发结晶工艺选定是根据硫酸铵物料成分以及工厂实际情况进行选择，工厂内有蒸汽，需要的场地面积大，均可采用硫酸铵多效蒸发结晶工艺进行硫酸铵废水处理。
The selection of ammonium sulfate evaporative crystallization process is based on the material composition of ammonium sulfate and the actual situation of the factory. There is steam in the factory and the required site area is large. Ammonium sulfate multi effect evaporative crystallization process can be used for ammonium sulfate wastewater treatment.
硫酸铵多效蒸发结晶工艺原理和流程
Principle and process of ammonium sulfate multi effect evaporative crystallization process
多效蒸发结晶技术是将一个蒸发器产生的二次蒸汽引入后一个蒸发器的加热室作为热源。
Multi effect evaporative crystallization technology is to introduce the secondary steam produced by one evaporator into the heating chamber of the latter evaporator as a heat source.
处理含硫酸铵的工业废水的方法，先将废水进行预处理，然后再蒸发、浓缩，结晶，后采用离心机进行分离，其主要技术特点是先将废水进行预处理，然后利用多效蒸发结晶器蒸发结晶。
The method of treating industrial wastewater containing ammonium sulfate is to pretreat the wastewater first, then evaporate, concentrate and crystallize, and then separate it by centrifuge. Its main technical feature is to pretreat the wastewater first, and then evaporate and crystallize by using multi effect evaporation crystallizer.
硫酸铵多效蒸发结晶工艺要根据硫酸铵设计参数进行选择具体的工艺流程，具体举例以三效蒸发结晶工艺为例：
The multi effect evaporation crystallization process of ammonium sulfate should be selected according to the design parameters of ammonium sulfate. For specific examples, take the three effect evaporation crystallization process as an example:
硫酸铵蒸发结晶时物料依次进入三效、一效、二效蒸发器进行蒸发浓缩，浓缩后的物料由出料泵送下一工序。
When ammonium sulfate evaporates and crystallizes, the materials enter the three effect, first effect and second effect evaporators for evaporation and concentration, and the concentrated materials are pumped to the next process by the discharge pump.
硫酸铵物料流向：原液进入进料泵送预热器，经换热后入三效蒸发器，再进入一效蒸发器，后经一效过料泵进入到二效蒸发器，一效、二效、三效蒸发器通过物料泵进行效内循环。蒸发浓缩到一定浓度时，通过出料泵送稠厚器，然后进入离心机进行离心分离。
Flow direction of ammonium sulfate material: the raw liquid enters the feed pump and is sent to the preheater. After heat exchange, it enters the three effect evaporator first, then the first effect evaporator, and then the second effect evaporator through the first effect feed pump. The first effect evaporator, the second effect evaporator, and the third effect evaporator carry out effective internal circulation through the material pump. When the evaporation concentration reaches a certain concentration, it is sent to the thickener through the discharge pump, and then enters the centrifuge for centrifugal separation.
硫酸铵多效蒸发结晶工艺蒸汽流向：由蒸汽总管进入到一效加热室作为热源，一效分离室产生的二次蒸汽进入到二效加热室，作为二效的热源使用，二效分离室出来的二次蒸汽进入三效加热室，作为三效热源使用。三效分离室出来的二次蒸汽进入预热器换热后，再进入冷凝器，冷凝下来的冷凝液进入冷凝水罐。
The steam flow direction of ammonium sulfate multi effect evaporation crystallization process: from the steam header into the first effect heating chamber as the heat source, the secondary steam generated by the first effect separation chamber enters the second effect heating chamber as the heat source of the second effect, and the secondary steam from the second effect separation chamber enters the third effect heating chamber as the heat source of the third effect. The secondary steam from the three effect separation chamber enters the preheater for heat exchange, then enters the condenser, and the condensed condensate enters the condensate tank.
The above is a detailed introduction about ammonium persulfate for you. I hope it will help you. If you have any questions, please contact us. We will provide services for you with a professional attitude http://www.jnjhhg.cn
