Particulate Metering With Independent Airflow for Multi-Row Rate Control
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Solution Overview
Problem
Existing particulate metering systems face challenges in maintaining consistent application rates across multiple rows due to varying distances from the air source to discharge points, leading to increased power consumption, frictional losses, and clogging, particularly in pneumatically driven systems.
Innovation Solution
A particulate metering system with variable application rate controls, featuring a single particulate source connected to multiple accelerators, each with independent airflow and metering controls, and a modular design allowing for adjustable conveyance rates and gearboxes that can be inverted or operated independently to manage airflow and particulate distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single air source is used to supply multiple row units at different distances, then the system structure is simplified, but the airflow distribution becomes uneven and application rate control deteriorates
Solution Approach 1:
The system segments the airflow supply by providing each row unit with its own air source, allowing independent control of airflow to each discharge point regardless of distance. This segmentation resolves the contradiction by maintaining simple overall structure while achieving precise local control.
Solution Approach 2:
Each row unit is equipped with its own air source that can be independently adjusted to provide the appropriate airflow for that specific location and distance, ensuring consistent application rates across all rows despite varying distances from the implement.
2Quantity of substance
If airflow path length is increased to reach distant row units, then all rows can be supplied, but frictional losses increase and power consumption increases
Solution Approach 1:
By segmenting the air supply system so that each row unit has its own air source, the system eliminates the need for long airflow paths from a single distant source. Each air source only needs to supply its local row unit, dramatically reducing frictional losses and power consumption while still achieving universal coverage.
3Quantity of substance
If upstream air pressure is increased to overcome wall friction in long airflow paths, then distant row units receive adequate airflow, but power consumption increases and system reliability decreases
Solution Approach 1:
The system divides the airflow delivery into multiple independent segments, each with its own air source located near the discharge point. This eliminates the need for high upstream pressure to overcome friction in long paths, as each short segment operates at low pressure independently, improving reliability and reducing the risk of lag and clogging.
4Manufacturing precision
If multiple independent air sources are used for each row unit, then application rate control is improved, but device complexity increases
Solution Approach 1:
The system segments the air supply function to individual row units, with each unit having its own air source and control mechanism. This segmentation enables precise independent control of application rates for each row while maintaining manageable system complexity through modular design.
Solution Approach 2:
Each air source is equipped with variable rate controls that allow dynamic adjustment of airflow and application rates for each row unit independently, enabling precise control adaptation to different field conditions while maintaining a relatively simple overall system structure.
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 system ensures consistent application rates across rows with reduced power consumption and minimized frictional losses, enhancing efficiency and reducing clogging by optimizing airflow and particulate distribution.
Implementation Method 1
The particulate can mix with and be suspended by air in the mixing area. A resulting air-particulate mixture moves through the air-particulate output into the discharge line.
Implementation Method 2
The particulate can mix with and be suspended by air in the mixing area. A resulting air-particulate mixture moves through the air-particulate output into the discharge line.
Implementation Method 3
A plurality of operated conveyances can be in operable communication with the single particulate source and the air-particulate interface of one of the particulate accelerators.
Data Source
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AI summary
An improved particulate metering system is provided. The system includes an air flow origin and a plurality of particulate accelerators. A single particulate source is in communication with the particulate accelerators. Each of a plurality of operated conveyances can be in operable communication with the single particulate source and one of the particulate accelerators. The system includes a confluence of the air flow and the particulate within the mixing area of each of the particulate accelerators. Each of a plurality of discharges can be associated with the particulate accelerators. The operated conveyances can operate at different rates. The system can include one or more gearboxes adapted to be inverted and controlled by a second drive system. The improved system and controls provide variable application rates of particulate across rows in a field.