Integrated plant and method for rice wine semi-solid fermentation

Abstract

The invention discloses an integrated plant for rice wine semi-solid fermentation. The integrated plant comprises a prior-fermentation tank set and a later-fermentation tank set. The prior-fermentation tank set comprises at least one main fermentation tank, a cooling coiler arranged in the main fermentation tank and a circulation feeding pump arranged outside the main fermentation tank. A raw material feed port is formed in the top of the main fermentation tank, a main fermentation circulation discharging pipe is arranged on the upper portion of a body of the main fermentation tank, and a main fermentation tank returning / discharging pipe is arranged on the bottom of the body of the main fermentation tank. The later-fermentation tank set comprises at least one later-fermentation tank, a cooling heat exchanging device arranged outside the later-fermentation tank and a later-fermentation tank mash pump. Rice wine fermentation is divided into a prior fermentation period and a later fermentation period, the problem of semi-solid fermentation is solved through the prior-fermentation tank, the volume of the prior-fermentation tank is about one fourth that of the total fermentation volume, the later-fermentation tank is simplified, the volume of the later-fermentation tank is about three fourths that of the total fermentation volume, the prior-fermentation tank needing cooling for temperature reducing and the later-fermentation tank needing temperature keeping are arranged in a separated mode, the feeding difficulty of semi-solid materials is lowered, the equipment investment and the workshop investment are reduced, the temperature controlling effect is improved, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to a fermentation technology for producing rice wine with rice as raw material. Background technique [0002] The current rice wine fermentation includes solid-state fermentation, semi-solid fermentation, and liquid-state fermentation. The existing semi-solid fermentation process of rice wine is to put rice and water into a cylinder or tank for fermentation. The ratio is about 1:2, and the fermentation time is 15 to 20 days. Because the rice absorbs water and expands after entering the tank, the solid-liquid layer in the tank in the early stage of fermentation, the material is very viscous, and the fluidity is extremely poor. It is very difficult to control the temperature during the fermentation process. Therefore, in order to solve the problem of temperature control, the existing rice wine fermentation can only The use of small fermentation tanks or vats increases the difficulty of feeding and temperature control of semi-solid m...

AI Technical Summary

Problems solved by technology

[0002] The current rice wine fermentation includes solid-state fermentation, semi-solid fermentation, and liquid-state fermentation. The existing semi-solid fermentation process of rice wine is to put rice and water into a cylinder or tank for fermentation. The ratio is about 1:2, and the fermentation time is 15 to 20 days. Because the rice absorbs water and expands after entering the tank, the solid-liquid layer in the tank in the early stage of fermentation, the material is very viscous, and the fluidity is extremely poor. It is very difficult to control the temperature during the fermentation process. Therefore, in order to solve the problem of temperature control, the existing rice wine fermentation can only The use of small fermentation tanks or vats increases the difficulty of feeding and temperature control of semi-solid materials (rice + water + koji), greatly increases the construction cost of rice wine factories, and restricts the development of rice wine production

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