TECHNOLOGY FOCUS - CHEMICAL ENGINEERING - Preferred Device: A distillation-dehydrating unit comprises a coarse tower, a distillation tower, a recovery tower and molecular sieve adsorption tower. Preferred Processes: In the liquefied wine preparation unit, the wine is liquefied by injecting through injector into a liquefied wine flash drum, and the generated flash drum stream is passed to a powder slurry drum through pipe line and heated. Then, the liquefied wine at 80-100 degrees C is passed to heat exchanger through pipe line for cooling. The portion of cooling medium is washing water of carbon-dioxide washer tower which is heated by heat exchanger and passed to beater of liquefied mash prepared unit for beating process. In distillation-dehydrating unit, the ferment wine is divided into two portions and passed to coarse tower and distillation tower through pipe lines. Then, the fresh steam is guided to recovery tower kettle, heated, and the steam generated on top of recovery tower is passed to reboiler of distillation tower through pipe line for heating a portion of distillation tower and the steam generated on top of distillation tower is passed to reboiler of coarse tower through pipe line, heated and remaining portion of steam generated on top of distillation tower is passed to molecular sieve adsorption tower through pipe line and dehydrated. In waste wine processing unit, the generated steam is passed to multi-effect evaporation device for concentrating clean liquid, and dense slurry is drained after concentrating clean liquid and passes out the wet grains through solid-liquid separated device and then air drying device for dehydration process. Then, the vaporized-condensed water generated by multi-effect evaporation device is passed to liquefied mash prepared unit for beating powder slurry. The remaining vaporized condensed water is passed to anaerobic drum through pipe line, and then, the vaporized condensed water processed by anaerobic drum is overflowed from top of drum to oxygen consume pool, the generating gas is passed to hot blast stove, heated and processed using decontamination device. The vaporized condensed water processed by oxygen consumed is passed to film purifying device, and the processed vaporized condensed water is used as feeding water for condensing water in alcohol producing process. Then, the water with impurity is recycled back to anaerobic drum. Preferred Conditions: The absolute pressure of recovery tower is 0.3-0.8 MPa, the absolute pressure of distillation tower is 0.1-0.6 MPa, and the absolute pressure of coarse tower is 0.005-0.4 MPa. The steam drained from air drying device in the waste wine processing unit is at temperature of 100-200 degrees C.