Discharge Grate With Single Support Beam For Reduction Mills
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Solution Overview
Problem
Conventional discharge grates in reduction mills experience high wear rates and frequent replacement due to harsh operating conditions, leading to inefficiencies and increased costs, with longitudinal support beams being a significant contributor to wear and distortion.
Innovation Solution
The design incorporates a single longitudinal support beam with two longitudinal grate elements, featuring openings through the support beam for improved material flow and reduced weight, allowing for greater discharge angles and enhanced resistance to hammer impacts, while minimizing unnecessary material and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional discharge grates with multiple longitudinal support beams are used, then structural strength is improved, but wear and distortion increase leading to frequent replacement
Solution Approach 1:
The patent removes unnecessary longitudinal support beams from the grate structure, retaining only a single central support beam. This extraction of excessive structural elements reduces the points of contact and wear while maintaining adequate structural strength through strategic placement and reinforcement of the remaining support beam.
Solution Approach 2:
The patent applies local quality by concentrating support and reinforcement at critical locations rather than distributing it uniformly. The single longitudinal support beam is strategically positioned and reinforced at specific high-stress areas, providing localized strength where needed while minimizing overall material usage and wear points.
2Stability of the object's composition
If solid longitudinal support beams are used, then structural stability is improved, but weight increases and material flow is obstructed
Solution Approach 1:
The patent introduces openings and voids within the longitudinal support beam structure, transforming it from a solid continuous beam to a porous or hollow-beam configuration. This allows material to flow through the support beam itself, reducing weight while maintaining structural stability through the strategic placement and sizing of these openings.
3Productivity
If conventional grate designs are used, then material discharge is achieved, but wear rates are high requiring frequent replacement
Solution Approach 1:
The patent converts the harmful effect of material flow into a beneficial cleaning mechanism. By designing the grate with openings and gaps in the support beams, material flow actively cleans and lubricates the contact surfaces, reducing wear accumulation. The same material that causes wear also serves to flush debris and reduce friction in the discharge path.
4Force
If multiple longitudinal support beams are used, then load distribution is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent merges multiple separate longitudinal support beams into a single integrated support structure. This consolidation reduces the number of individual components that need to be manufactured, assembled, and maintained, thereby simplifying manufacturing processes and reducing overall complexity while the single beam is designed to handle load distribution through optimized geometry and material properties.
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
This configuration reduces wear, deflection, and maintenance needs, resulting in a lower-cost, lighter grate assembly with improved performance and reduced scrap material, enabling more efficient material discharge and extended equipment lifespan.
Implementation Method 1
transported in some manner (generally shown by arrows 116, such as via gravity, via conveyors, via truck or other vehicle, etc.) for further processing
Implementation Method 2
the shredder hammers 112 impact the material 104 to be shredded between the hammer 112 and the anvil 108
Data Source
AI summary
Discharge grates and grate components of reducing equipment have reduced amounts of material to provide lower costs, lower weight, and less scrap while still providing adequate resistance to bending, deflection, and/or warping and suitable material discharge.