Flow-Retarding Chute Panels for Grain Abrasion Reduction

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Solution Overview

Problem

Existing grain handling equipment, such as round and rectangular downspouts, require frequent maintenance and replacement, leading to significant downtime and labor costs due to abrasion and heavy, cumbersome designs, which are not efficiently managed by current methods.

Innovation Solution

The use of internal bottom surface flow-retarding panel members made of partially laminated abrasion-resistant steel (ARS) in chutes and downspouts, which are replaceable and bolt-in, allowing for flange-less interconnection and adaptable hole configurations to reduce wear and maintenance needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional round or rectangular downspouts are used, then material can be conveyed from one position to another, but the bottom surface wears out quickly due to abrasion requiring frequent replacement

Engineering Contradiction:
Improveservice life of downspoutVSAvoidtime between replacement
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The downspout is divided into modular sections that can be independently replaced. The flow retarding members are segmented into discrete panels that can be individually accessed and replaced without replacing the entire downspout structure, reducing maintenance downtime and labor costs.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The downspout combines different materials with complementary properties: the structural framework uses standard metal components while the flow retarding panels use abrasion-resistant steel or other wear-resistant composite materials. This composite construction allows the wear-prone surfaces to be replaced independently from the structural components.

Inventive Principle:
Principle #40Composite materials

2Strength

If downspouts are made extremely heavy to handle long spans, then structural support is improved, but crane equipment is required for installation and maintenance

Engineering Contradiction:
Improvestructural support capabilityVSAvoidinstallation and maintenance complexity
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The downspout system is segmented into lighter modular sections that can be handled by standard equipment rather than requiring heavy cranes. Each section is designed to be manageable in size and weight while maintaining structural integrity through proper connection design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection system allows for dynamic assembly and disassembly operations. Quick-connect mechanisms enable sections to be rapidly joined or separated without complex welding or bolting operations, making maintenance operations faster and easier to perform.

Inventive Principle:
Principle #15Dynamics

3Speed

If numerous flow retarding members are installed across the width of the downspout, then material flow speed is reduced, but considerable labor is required for assembly

Engineering Contradiction:
Improvematerial flow speedVSAvoidassembly complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The flow retarding function is segmented into discrete replaceable panels rather than requiring numerous individual members spanning the entire width. Each panel is a self-contained unit that provides flow retarding capability while being simple to install and replace.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple flow retarding functions are merged into integrated panel assemblies that combine several flow control features in single replaceable units. This reduces the total number of separate components that must be assembled while maintaining effective flow speed control.

Inventive Principle:
Principle #5Merging (Combining)

4Strength

If flanges are welded to connect adjacent spouts or chutes, then structural connection is achieved, but welding time and complexity increase

Engineering Contradiction:
Improveconnection strengthVSAvoidwelding requirement
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The welding process is replaced with mechanical fastening systems such as bolting or interlocking connections. This substitution eliminates the need for welding operations while maintaining adequate connection strength through properly designed mechanical joints that are easier and faster to assemble.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 solution extends the service life of the equipment, reduces downtime and labor for maintenance, and allows for efficient delivery of dry bulk materials by minimizing material-on-material friction and eliminating the need for welding flanges, thus enhancing operational efficiency.

Implementation Method 1

reducing the speed at which material is flowing over the bottom surface of the chute or downspout

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

wear out at their bottom surface because of the abrasion of the grain or other material flowing through the spout

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentUS9309052B2Flow-retarding chutes and spouts and method for delivering dry bulk free-flowing material to a location
Publication Date: 2016.04.12 NOLIN KARL W
  • US9309052B2 patent drawing
  • US9309052B2 patent drawing
  • US9309052B2 patent drawing

AI summary

A system and method for causing a differential flow rate to exist in a downspout so as to reduce abrasion of a bottom side of said downspout and to sort dry bulk material flowing therethrough. The present invention reduces the velocity of the mass of the dry bulk material, such as corn, thus preserving grain quality and reducing the exit velocity at the lower end of the spout.