Molasses concentration device and using method and process thereof

Abstract

The invention discloses a molasses evaporation and concentration device and a using method and process thereof. The molasses evaporation and concentration device comprises a first evaporation unit, asecond evaporation unit, a third evaporation unit and a fourth evaporation unit. The first evaporation unit takes secondary steam generated by the second evaporation unit as a heat source, the secondevaporation unit takes secondary steam generated by the third evaporation unit as a heat source, the third evaporation unit takes secondary steam generated by the fourth evaporation unit as a heat source, and the fourth evaporation unit takes secondary steam generated by a wet protein drying process as a heat source, and evaporators of the first evaporation unit, the second evaporation unit, the third evaporation unit and the fourth evaporation unit are all tubular falling film evaporators. The molasses gelatinization wall-hanging phenomenon is obviously reduced, the equipment utilization rateis improved, the production cost of enterprises is greatly reduced, and greater economic benefits are brought to the enterprises.

Description

technical field [0001] The invention relates to the technical field of molasses evaporation and concentration, in particular to the molasses evaporation and concentration process used in the preparation of concentrated soybean protein by an alcohol method, and in particular to a molasses concentration device and its use method and process. Background technique [0002] In the process of preparing soybean protein concentrate by the mainstream alcohol method, five major processes are involved, including soybean meal extraction, wet protein drying, molasses evaporation and concentration, secondary steam condensation, and tail gas recovery, among which: wet protein drying process and molasses evaporation and concentration process are two major processes. Energy-intensive processes. The wet protein drying process, the current mainstream process is to use the drying method of the partition wall of the dryer to dry and remove the ethanol and water contained in the solid material, a...

AI Technical Summary

Problems solved by technology

[0003] In the process of molasses evaporation and concentration, due to the high viscosity of molasses, it is very easy to stick to the inner wall of the evaporating tube. At the same time, due to the use of steam heating, the temperature difference between the inside and outside of the evaporating tube wall is 70-90 ° C, resulting in the molasses being easily gelatinized. Wall hanging reduces the effective surface area of ​​mass transfer and heat transfer of the evaporating tube. It needs to be shut down every 1-2 months to clean the evaporating tube. It needs to be shut down for at least 48 hours for one cleaning. Shutdown cleaning not only increases various consumptions, but also delays production. , which increases the production cost of the enterprise

[0004] The molasses evaporation process in the mainstream alcohol method to prepare concentrated protein production process not only consumes a lot of energy, but also needs to be shut down for 1-2 months to clean the evaporation tube for 48 hours, which not only wastes precious energy, but also increases the production cost of the enterprise and aggravates the The burden on upstream and downstream enterprises has also affected the popularization and application of alcohol-based concentrated protein

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