METHOD AND APPARATUS FOR PRODUCING STARCH AND GLUTEN FROM WHEAT, RYE, OR BARLEY

摘要

Method and apparatus for producing starch and gluten from wheat, rye or barley. The invention uses a conventional break system but the reduction system is modified to comprise three groups, namely a sizing group having pairs of fluted rolls for semolina reduction, the speed ratio of the sizing group pairs of rolls being between 1:1.3 and 1:1.8. A pressing and impacting group follows the sizing group and is provided with pairs of smooth rolls whose speed ratio is in the range of 1:1 and 1:1.2. This group further includes an impact detacher or a beater detacher arranged between each pair of smooth rolls and its associated screening unit. The third group is a final reduction group whose stages are provided with pairs of smooth rolls or fine fluted rolls having speed ratio between 1:1.2 and 1:1.4. The final reduction group may also be provided with impact or beater detachers at each of the passage of the final group. The method and apparatus results in virtually no losses in dry substance, at the same time achieving a reduced water consumption. There is a higher yield in gluten as compared with the known methods. The purity and quality of the obtained gluten is considerably better than obtained in prior art method and apparatus.