Expanded Polymer Foam Hay Steamer Reducing Apparatus Weight
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Solution Overview
Problem
Existing hay steamers are cumbersome and physically straining to load and unload due to their heavy weight, and they are difficult to move around, as they are constructed with solid double-skinned walls that provide structural support but lack the weight-to-strength ratio and insulation efficiency of alternative materials.
Innovation Solution
The hay steamer is constructed using expanded polymer foam, which offers a high strength-to-weight ratio and excellent insulation, allowing for a lighter and more energy-efficient design that is easier to maneuver, with a chamber size suitable for standard hay bales and integrated components like a boiler and controller for efficient steam generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If solid double-skinned walls are used for structural support, then structural strength is maintained, but weight increases making the apparatus cumbersome and difficult to move
Solution Approach 1:
The patent employs a composite construction combining expanded polymer foam (providing insulation and structural support) with solid plastic end plates and reinforcement ribs. This composite approach achieves the required structural strength while significantly reducing weight compared to traditional solid double-skinned wall constructions, directly resolving the contradiction between strength and weight.
Solution Approach 2:
The use of expanded polymer foam as the primary wall material introduces a porous structure that provides both thermal insulation and structural integrity with reduced density. The foam's cellular structure maintains strength while minimizing weight, enabling the apparatus to be easier to move and maneuver without sacrificing structural support capabilities.
2Weight of moving object
If expanded polymer foam is used for the body, then weight is reduced and ease of movement is improved, but structural strength may be compromised
Solution Approach 1:
The patent reinforces the expanded polymer foam body with solid plastic end plates, internal reinforcement ribs, and corner strengtheners. This composite design compensates for the相对较低 strength of foam alone, achieving the required structural integrity while maintaining the weight advantages of the foam construction.
Solution Approach 2:
The body is segmented into functional zones with varying foam densities and thicknesses, and is reinforced at critical stress points with additional structural elements. This segmentation allows optimization of material distribution, providing strength where needed while minimizing weight in less critical areas.
3Strength
If traditional solid wall construction is used, then structural integrity is maintained, but thermal insulation efficiency is insufficient leading to higher energy consumption
Solution Approach 1:
The expanded polymer foam walls provide superior thermal insulation compared to traditional solid wall constructions due to the trapped air in the cellular structure. This reduces heat loss during steaming operations, lowering energy consumption while the foam's structural properties maintain adequate structural integrity.
Solution Approach 2:
The composite foam-solid plastic construction combines the insulating properties of foam with the structural benefits of solid materials, achieving both thermal efficiency and structural integrity simultaneously, thereby reducing energy consumption without compromising strength.
4Ease of operation
If the chamber is sized to fit standard hay bales (100 cm×40 cm×30 cm), then usability is improved, but the apparatus becomes larger and heavier
Solution Approach 1:
The patent optimizes the chamber dimensions to precisely fit standard hay bales (100 cm×40 cm×30 cm), avoiding excessive size while maintaining usability. The expanded foam construction further reduces the weight penalty associated with this size, achieving a balance between usability and portability.
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
The use of expanded polymer foam reduces the steamer's weight significantly while maintaining structural integrity and thermal insulation, making it easier to load, unload, and move, while also improving the steaming process by ensuring effective sterilization of hay without nutrient loss or spoilage.
Implementation Method 1
air spaces in the expanded polymer foam provide the apparatus with the required thermal insulating properties
Implementation Method 2
The hot steam rises through the hay bale, treating the hay bale as it does so. Typically, the bale is exposed to a continuous supply of steam for approximately 40 minutes, heating the bale to between 70° C. and 100° C.
Data Source
AI summary
The present invention provides an apparatus for steaming animal fodder comprising a body defining a chamber in which the animal fodder may be placed. The body comprises an upper part and a lower part configured to be placed together to form the chamber. The apparatus further comprises a conduit configured to carry steam to an aperture configured to allow the steam to pass into the chamber. The body is formed from an expanded polymer foam.