Bonemill with Replaceable Milling Inserts for Slaughter Residue Processing

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Solution Overview

Problem

The handling of slaughter residues is challenging due to high costs and loss of nutritional and energy value, with existing methods requiring special logistics and sanitary regulations, and existing solutions fail to effectively convert these residues into usable raw materials.

Innovation Solution

A bonemill device that processes slaughter residues into a usable raw material by using replaceable milling inserts and a design that prevents aggressive material disposal, allowing for easy maintenance and sanitation, and producing a finely milled product suitable for pet food or animal feed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If slaughter residues are destroyed by combustion or composting, then the waste is eliminated, but the nutritional and energy value is lost

Engineering Contradiction:
Improveenergy value of slaughter residuesVSAvoidwaste handling requirements
Core Design Contradiction:
Loss of energyVSObject-generated harmful factors

Solution Approach 1:

The invention changes the physical state and particle size parameters of the slaughter residues through mechanical milling, transforming them from unsuitable waste material into fine pulp with appropriate characteristics for animal feed applications, thereby preserving nutritional value while eliminating harmful waste disposal requirements

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention converts what was previously considered harmful waste material requiring expensive disposal into a beneficial raw material for animal feed production, transforming the problem of waste elimination into an opportunity for resource utilization

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Reliability

If special logistics chain is used for waste handling, then sanitary regulations are complied with, but handling costs increase

Engineering Contradiction:
Improvesanitary complianceVSAvoidlogistics chain complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The milling device incorporates self-cleaning capabilities through its design, where the rotating milling bodies and channel geometry automatically clean themselves during operation, eliminating the need for separate cleaning systems and complex sanitation logistics while maintaining sanitary compliance

Inventive Principle:
Principle #25Self-service

3Productivity

If aggressive material disposal is used, then processing efficiency is improved, but engine demands increase

Engineering Contradiction:
Improveprocessing efficiencyVSAvoidengine power requirements
Core Design Contradiction:
ProductivityVSPower

Solution Approach 1:

The invention uses dynamically adjustable milling bodies that can adapt their position and configuration during operation, optimizing the milling action to achieve efficient processing with reduced power consumption by avoiding excessive force application

Inventive Principle:
Principle #15Dynamics

4Manufacturing precision

If complex milling bodies are used, then milling effectiveness is improved, but maintenance difficulty increases

Engineering Contradiction:
Improvemilling effectivenessVSAvoidmaintenance difficulty
Core Design Contradiction:
Manufacturing precisionVSEase of repair

Solution Approach 1:

The milling bodies are segmented into modular components with standardized parts that can be easily replaced or maintained, allowing complex milling functionality to be achieved while keeping maintenance simple through component interchangeability

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3238827B1bonemill
Publication Date: 2018.11.21 OY T BJORKLUND AB
  • EP3238827B1 patent drawingFigure 1~2
  • EP3238827B1 patent drawingFigure 3
  • EP3238827B1 patent drawingFigure 4

AI summary

The present invention pertains to a bonemill (1) intended particularly to grind slaughter residue in the form of bones and bone-like residue products. Such a device features among others a processing channel (2), equipped with a transport element (3) for transportation of a millable material (4) toward a milling unit (6). The milling unit comprises two parallel spindles (9) which in turn feature milling bodies (7) arranged in pairs with substantially evenly distributed replaceable milling inserts (8). The milling inserts protrude from the cylindrical surface of the milling body while being separate from each other by tracks (14) and intermediate ridges (15) formed in the surface of the milling body. The processing channel (2) is arranged to form a screw housing surrounding the millable material (4), and featuring a milling inlet (16) oriented toward the milling unit. The inlet has an extension in the rotational plane of the milling bodies which is shorter than the total extension of the milling bodies in their rotational plane. The milling inlet also has an extension in the spindle's (9) longitudinal direction which is shorter than the milling unit's processing width.