Sodium sulphate evaporatorProcess flow is followingsodium sulphate solution---tri-effect countcurrent forced circulation evaporator with DTB or OSLO crystallizer---buffer tank---centrifugal separationdue to the sodium sulphate normally with the water of crystallization, the sodium sulphate liquid must be input to the third effect firstly,then the second effet,the last is the first effect,the temperature of output liquid with crystal must higer than 60degree
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