This installment is suitable for profession and so on drugs manufacture, food, light industry, chemical industry thin ethyl alcohol recyclings. Is also suitable for the methyl alcohol and so on other solvent distillation. This installment basis user's request, may 30 about thin ethyl alcohol distillation to 90-95 the ethyl alcohol, the end product ethyl alcohol request be higher, may enlarge the reflux ratio, but the output correspondingly reduces. W may also use in distillation and so on methyl alcohol. W is the intermittent type, ZW is a company. This installment uses the highly effective stainless steel ripple padding. The distillation tower body uses the stainless steel manufacture, thus has prevented the iron filings jamming padding phenomenon, lengthened the installment life. In this installment every contact ethyl alcohol's equipment part like condenser, the surge tank, the cooling worm and so on use the stainless steel, guaranteed that the end product ethyl alcohol is not polluted. Distills the cauldron to use the demountable-type U preheater pipe, when overhaul may the U preheater pipe emigration cauldron outside, be advantageous to the preheater pipe outer wall and the distillation cauldron endophragm carries on the clean. This equipment may the batch production, may also the continuous production.