Closed-Loop Flushing System for Automated Milking Barns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Automated milking systems (AMS) in dairy barns face challenges in maintaining the cleanliness of the robotic milking parlor area without disrupting cow access, as conventional cleaning methods either require excessive labor or use large volumes of water that can lead to disease risks.
Innovation Solution
A closed-loop, short interval flushing system is implemented, where the flooring deck is sloped to direct liquid to grated drains, and a collecting pipe network conducts the liquid to a baffled tank for settling, allowing for periodic flushing with regulated nozzles to maintain a hygienically clean surface without excessive water exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional flushing methods are used to clean the robotic milking parlor, then cleanliness is improved, but water volume increases leading to disease risks
Solution Approach 1:
The system implements periodic flushing cycles instead of continuous flushing. The controller activates nozzles at predetermined intervals to spray water onto the deck surface, then allows the surface to drain and dry between cycles. This periodic action maintains cleanliness while significantly reducing total water volume compared to continuous flushing methods.
Solution Approach 2:
The system replaces manual mechanical cleaning (hosing and scraping) with an automated spray and drain system. Regulated nozzles deliver controlled water volumes to specific areas, and the sloped deck with grated drains automatically removes water and waste without manual intervention. This substitution enables precise water management while maintaining hygiene standards.
2Reliability
If frequent flushing is implemented to maintain hygiene, then cleanliness is improved, but labor requirements increase
Solution Approach 1:
The system is designed to be self-operating with minimal labor input. The controller automatically manages the flushing sequence, activating nozzles and regulating water flow without operator intervention. The sloped deck and grated drains self-drain water and waste into collection systems. This self-service capability maintains high cleanliness standards while eliminating the need for continuous manual labor.
Solution Approach 2:
The system incorporates sensors that detect the presence of cows and the state of the deck surface to regulate flushing operations. When cows are present, the system adjusts or delays flushing to avoid disruption. The controller monitors water usage and cleaning effectiveness, automatically adjusting the flushing schedule to maintain hygiene while optimizing resource usage and minimizing labor requirements.
3Ease of operation
If the robotic milking parlor is centrally located for cow access, then ease of operation is improved, but contamination volume increases
Solution Approach 1:
The system extracts and removes contamination from the central robotic milking parlor through the integrated spray and drain system. Water from the regulated nozzles flushes manure and debris off the deck surface, and the sloped design with grated drains quickly removes the contaminated water. This extraction process prevents contamination accumulation despite the high-traffic central location.
Solution Approach 2:
The system changes the physical parameters of water application and removal to manage contamination. By controlling water pressure, flow rate, and spray pattern through regulated nozzles, the system effectively lifts and removes contaminants. The sloped deck geometry and drain placement are optimized to maximize drainage efficiency, rapidly removing contaminated water before it can pool or spread.
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 system effectively maintains cleanliness around the robots with minimal water usage, reducing the risk of disease and labor requirements, while segregating cleaner flush water for reuse, thus optimizing resource management and cow access.
Implementation Method 1
the flooring deck is configured to slope at its upper surface to define a drain area
Implementation Method 2
The baffled tank is selected to enable particulate to settle, under the influence of gravity, out of the collected flush water
Data Source
AI summary
A method and system for flushing an area of a robotic harvest dairy barn is presented. The method is based upon defining areas within the dairy barn that, by virtue of use of robots for “cow-initiated” milking will be maintained in a hygienically clean and dry condition with frequent flushings of short duration. The four areas of the barn felt to benefit from this frequent flushing including any of: an area immediately surrounding a robot; a holding area for staging cows for milking at the robot; a robot control room; and a milk collection room. In the relevant areas the flooring deck is configured to slope at its upper surface to define a drain area, the drain area including at least one grated drain positioned to collect any liquid deposited on the upper surface of the provided flooring deck. A collecting pipe network conducts liquid collected to a baffled tank.