Seed Treatment Apparatus with Dynamic Flow Control
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Solution Overview
Problem
Existing seed treatment apparatuses generate significant chemical waste due to inability to precisely control treatment product application rates, especially at the retail level, and are not economical for small batches or rapid processing, leading to inefficiencies and environmental hazards.
Innovation Solution
A seed treatment apparatus that automatically adjusts treatment product flow rate and seed feed rate based on volumetric measurement, using a seed wheel for precise metering and a computerized process controller to minimize waste and optimize treatment application, allowing for manual adjustments and retrofitting of existing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If treatment products are applied at a uniform rate to each batch of seeds, then the application process is simple, but significant chemical waste is generated due to inability to adjust for varying seed flow rates
Solution Approach 1:
The system dynamically adjusts the treatment product application rate based on real-time seed flow rate measurements. The controller continuously monitors seed flow and modifies the treatment product delivery rate accordingly, transitioning from a static uniform application to a dynamic adaptive application that matches actual processing conditions.
Solution Approach 2:
The system implements a feedback control mechanism where the actual seed flow rate is measured and fed back to the controller, which then adjusts the treatment product application rate. This closed-loop control ensures that the application rate responds to changing conditions and prevents both over-application and under-application of treatment products.
2Measurement precision
If expensive computerized large scale seed treaters with weight-based flow measurement are used to adjust application rate, then treatment precision is improved, but equipment cost increases and it is not suitable for retail level use
Solution Approach 1:
The system replaces expensive, complex weight-based measurement equipment with a simpler, more affordable sensor-based flow detection system suitable for retail environments. The solution uses cost-effective components that provide sufficient measurement precision without the high capital investment required for industrial-scale computerized treaters.
Solution Approach 2:
The system substitutes mechanical weight-based flow measurement with a non-mechanical sensor-based detection method. This replacement eliminates the need for expensive weighing mechanisms and complex computerized control systems while achieving comparable or sufficient precision for retail seed treatment applications.
3Adaptability or versatility
If weight-based flow measurement is used to adjust treatment application, then application rate can be varied, but measurement requires averaging over a length of seed flow and cannot accommodate dramatic seed flow interruptions or variance
Solution Approach 1:
The system uses periodic sensing of seed flow rather than continuous averaging over a long measurement window. By detecting flow conditions in shorter, more frequent intervals, the system can respond more quickly to changes in seed flow rate and interruptions, providing better adaptability while maintaining reliable control.
Solution Approach 2:
The system detects seed flow conditions in advance and adjusts treatment application proactively rather than relying on averaged historical data. This allows the system to anticipate and respond to flow variations and interruptions before they significantly impact the treatment process, improving both adaptability and reliability.
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 apparatus significantly reduces chemical waste by precisely controlling treatment product application, ensuring optimal seed coating with minimal excess, making it economical for retail use and suitable for small batches and rapid processing.
Implementation Method 1
the seeds are discharged from the seed wheel, the seeds fall and are distributed over a dispersion cone and into a spray curtain of treatment fluid provided by an atomizer wheel
Data Source
AI summary
A seed treatment apparatus provides for minimal waste of products for treating seeds, in that it is precisely controllable and automatically adjustable. A volume of seeds to be treated and a flow rate of treatment product for treating the seeds can both be sensed. At least one of the flow rate of the treatment product and the volume of seeds can automatically be adjusted if it is determined that a ratio of the flow rate of treatment product to the volume of seeds is not the same as a predetermined flow rate to volume ratio.