Grain Dehusking Peeling Machine Husk Removal
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Solution Overview
Problem
Current methods for dehusking grain in the brewing industry are inefficient in removing husks, seed coats, and germs, leading to adverse effects on beer taste, physical/chemical durability, and increased energy expenditure during grinding, as well as pollutant transfer into the mash.
Innovation Solution
A method involving the complete removal of husks and germs from cleaned, moistened, and malted brewing grain, followed by hulling and optional grinding and polishing, utilizing a peeling machine with a stator and rotor design to separate and process the grain, allowing for the recycling of high-quality husks and reducing pollutant content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional dry cleaning and aspiration methods are used to separate grain from husks, then the grain can be cleaned, but the husks are not completely removed leading to pollutant transfer into the mash and adverse effects on beer taste and durability
Solution Approach 1:
The patent extracts and removes the harmful husk fraction completely from the grain using a classification system that separates intact grains from hulled grains. The hulled grains are then processed through a peeling device that removes the remaining husk material, ensuring complete separation of the harmful component (husks) from the useful component (grain kernels).
Solution Approach 2:
The patent changes the physical state of the grain by moistening it before processing. This parameter change makes the husk more susceptible to removal while preserving the grain kernel. The moisture content adjustment enables more effective husk separation without damaging the grain.
2Quantity of substance
If husks are not completely removed from grain, then the brewing process can proceed, but the taste and physical/chemical durability of the beer deteriorate due to transfer of husk substances into the mash
Solution Approach 1:
The patent replaces conventional mechanical grinding with a peeling device that uses friction and pressure between rotating elements to remove husks. This mechanical substitution allows for selective removal of husk material without damaging the grain kernel, effectively reducing husk content while preserving grain integrity.
3Productivity
If conventional grinding methods are used on grain with husks, then the grain can be processed, but energy expenditure increases due to the elasticity of husks requiring more mechanical comminution
Solution Approach 1:
The patent applies preliminary husk removal through the peeling device before the grain undergoes grinding. By removing the elastic husk layer in advance, the subsequent grinding process requires significantly less energy as only the brittle grain kernel needs to be comminuted, eliminating the energy-wasting mechanical comminution of elastic husk material.
4Object-affected harmful factors
If husks are removed completely from grain, then beer quality improves, but the process complexity increases requiring additional equipment and steps
Solution Approach 1:
The patent combines multiple functions into integrated processing units. The classification device merges sorting and preliminary separation functions, while the peeling device combines husk removal with grain conditioning. This functional integration reduces overall system complexity compared to having separate dedicated equipment for each step.
Solution Approach 2:
The peeling device is designed to handle multiple grain types and processing requirements through adjustable parameters. The same equipment can process different grains with varying husk characteristics by modifying operational parameters, eliminating the need for multiple specialized devices and reducing system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves the taste and quality of brewing products by minimizing the transfer of detrimental substances, reduces energy consumption, and enables targeted recycling and reintegration of husks, enhancing the mashing process and grain quality.
Implementation Method 1
a rotor (3) which can be set into rotation about its axis and which has a surface with a peeling action, and a stator (1), in particular a screen basket, which surrounds the rotor (3) and with which the rotor (3) comes into frictional contact
Implementation Method 2
the rotor (3) comes into frictional contact with the stator (1) in a processing zone (6) and the grain material to be processed can be fed into the processing zone (6)
Implementation Method 3
Air can be blown through the processing zone (6)
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a method and a system for dehusking grains, in particular for removing the spelts and/or the seed coat and the germ bud of grains and/or of malted grains and its processing in the brewing industry. The outer layers/shells are removed from cleaned and malted distiller's grains in a husking machine (20).