Animal Fodder Steamer Pressure Cycling for Overheating Control
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Solution Overview
Problem
Existing hay steamers do not effectively address the issue of bacteria, mould spores, fungi, and dust particles in hay, leading to respiratory issues in livestock, and they often require manual intervention to prevent damage from overheating.
Innovation Solution
A hay steamer with a controller that alternates between low-pressure and high-pressure steam phases to evenly distribute steam, ensuring thorough treatment and automatic temperature control, reducing the risk of overheating and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous steam supply is used to ensure thorough treatment of hay, then bacteria and mould spores are effectively reduced, but the risk of overheating and damage increases
Solution Approach 1:
The controller alternates between activating and deactivating the steam generator in periodic cycles. During activation, steam is supplied to treat the hay; during deactivation, the system pauses to prevent overheating. This periodic operation ensures thorough pathogen reduction while avoiding damage from continuous high-temperature exposure.
2Object-affected harmful factors
If manual intervention is required to switch off the steamer to prevent damage, then overheating can be avoided, but operational complexity and labor requirements increase
Solution Approach 1:
The controller automatically monitors steaming progress and manages the steam generator activation/deactivation cycles without user intervention. The system self-regulates to prevent overheating and damage, eliminating the need for manual switching while maintaining safe operating temperatures throughout the treatment process.
Solution Approach 2:
The controller receives feedback from sensors monitoring temperature and steaming progress, then automatically adjusts steam generator operation accordingly. When the hay reaches appropriate treatment levels or temperature thresholds are approached, the controller deactivates the steam generator to prevent overheating, creating a closed-loop control system that prevents damage without manual intervention.
3Productivity
If steam is supplied at high pressure to reduce steaming time, then productivity increases, but evenness of steam distribution and treatment quality may deteriorate
Solution Approach 1:
The controller implements periodic activation and deactivation cycles of the steam generator. During each activation phase, steam is supplied at controlled pressure; during deactivation phases, the system pauses to allow steam distribution to equalize throughout the hay. This periodic approach enables use of higher pressures for faster treatment while maintaining even distribution through the pauses between cycles.
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 steamer effectively reduces bacteria, mould spores, and dust particles in hay while maintaining nutrient content, offering quicker steaming cycles and reducing the need for manual operation.
Implementation Method 1
a steam generator supplied with water to generate steam
Implementation Method 2
steam passing along the conduit and through the aperture enters the chamber
Implementation Method 3
In the low-pressure phase, the controller allows steam to pass from the aperture into the chamber at a relatively low pressure. In the high-pressure phase, the controller allows steam to pass from the aperture into the chamber at a relatively high pressure.
Implementation Method 4
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.
Implementation Method 5
steaming the hay or other silage reduces the risk of causing and/or exasperating allergies and respiratory issues
Data Source
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AI summary
The present invention provides an apparatus for steaming animal fodder comprising a body defining a chamber in which 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 lower part includes a floor on which the animal fodder is supported. The apparatus further comprises an aperture provided in the floor of the lower part, a conduit configured to carry steam to the aperture thereby allowing steam to pass into the chamber, and a controller arranged to control passage of steam to and through the aperture in at least one combined cycle. The at least one combined cycle comprises a low-pressure phase in which the controller allows steam to pass to and through the aperture into the chamber at a relatively low pressure, a high-pressure phase in which the controller allows steam to pass to and through the aperture into the chamber at a relatively high pressure, and such that each combined cycle of the least one combined cycle includes the low-pressure phase followed by the high- pressure phase.