Precision Sowing With Free-Fall Seed Dressing Application
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Solution Overview
Problem
Existing precision sowing machines contaminate components and pose hazards due to seed dressing dust dispersion during the sowing process, particularly in pneumatically operated systems, affecting operational functionality and posing risks to operators and the environment.
Innovation Solution
A sowing method and device that applies seed dressing to seeds during their free fall onto the underlying surface, using a structurally independent application device with sensors and nozzles to precisely target individual seeds, avoiding contamination of the sowing machine components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If seed dressing is applied to seeds in the sowing machine using conventional methods, then seeds are protected against pests and diseases, but seed dressing dust is generated and dispersed into the environment
Solution Approach 1:
The harmful seed dressing dust is extracted from the sowing machine environment by introducing a dust precipitator that captures dust particles in the air stream, separating them from the airflow before discharge
Solution Approach 2:
The seed dressing dust that would otherwise be harmful is converted into a beneficial resource by directing it through the dust precipitator into the soil, where it can serve as a natural fertilizer or soil amendment
2Manufacturing precision
If pneumatically operating precision sowing machines are used to introduce seeds individually, then precise depth positioning is achieved, but fine seed dressing dust is taken up by air stream and dispersed
Solution Approach 1:
The dust precipitator extracts harmful dust particles from the pneumatic air stream, separating them from the airflow that would otherwise carry dust into the environment
Solution Approach 2:
The dust precipitator acts as an intermediary device between the pneumatic seed introduction system and the environment, capturing and processing dust particles before discharge
3Reliability
If seed dressing dust accumulates in the sowing machine, then operational functionality is restricted, but removing it requires additional cleaning mechanisms
Solution Approach 1:
The dust precipitator operates continuously during the sowing process, constantly capturing and removing dust particles from the air stream, preventing accumulation rather than requiring periodic cleaning
Solution Approach 2:
The system performs self-cleaning through the dust precipitator that automatically captures and removes dust particles during normal operation, eliminating the need for separate cleaning mechanisms
4Reliability
If the entire seed furrow is treated with crop protection products, then all seeds are protected, but unnecessarily high consumption of protection product occurs
Solution Approach 1:
Instead of treating the entire furrow uniformly, the system applies seed dressing locally to individual seeds as they pass through the application device, ensuring protection is applied only where needed
Solution Approach 2:
The seed furrow treatment is segmented into individual seed treatments, with the application device delivering crop protection products to each seed separately rather than treating the entire furrow at once
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
Prevents contamination of sowing machine components and reduces environmental and health risks by ensuring precise application of seed dressing to individual seeds without dust dispersion, enhancing operational safety and efficiency.
Implementation Method 1
in order to introduce the seed into the soil in a controlled way, a partial vacuum or excess pressure can be applied to a separating element
Implementation Method 2
in order to introduce the seed into the soil in a controlled way, a partial vacuum or excess pressure can be applied to a separating element
Implementation Method 3
the application of seed dressing to the separated seeds takes place after they have left the separating device during their falling movement onto the underlying surface for seed
Data Source
AI summary
In a sowing method and a corresponding sowing device for discharging granular seed onto an underlying surface for seed, seeds (K) which are present in a reservoir container (10) are removed from the reservoir container and separated by means of a separating device (20) and successively allowed to fall onto the underlying surface (B) for seed. After the separated seeds (K) leave the separating device (20) seed dressing is applied to them by means of an application device (30) during their falling movement onto the underlying surface (B) for seed.