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US 9,067,213 B2Granted
Method for producing flour and/or semolina
AssigneeBuhler AG
InventorsArturo Bohm, Kurt Grauer, Urs Dübendorfer
Life of this patent
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Abstract
A grinding arrangement for producing flour from cereal grain has at least one grinding mechanism designed as a stock-bed roller mill. The grinding mechanism has at least one feed opening and at least one dispensing opening. The grinding arrangement has at least one separating stage for separating ground products into finer ground product and coarser ground product, and returns at least some of the coarser ground product into the feed opening of the grinding mechanism.
Claims13
A method for producing flour from grain, comprising steps of:
- feeding the grain as a material bed into a material bed roller mill wherein the material bed roller mill comprises rollers, at least one feed opening, a draw-in region between the rollers, a grinding gap between the rollers and at least one delivery opening;
- producing a material bed in the draw-in region and drawing grain from a surplus thereof by means of a filled material duct or hopper,
- grinding the grain in the material bed roller mill, by material bed comminution based on a packed particle fill in the grinding gap;
- conveying the ground grain into a first separating stage by means of a conveying arrangement;
- separating the ground grain in the first separating stage into finer ground product and coarser ground product;
- returning at least a fraction of the coarser ground product into the feed opening of the material bed roller mill by means of return arrangement;
- and
- discharging the finer ground product from first the separating stage.
5 more elements
Dependencies are inferred from the claim text.