Biomass Pellet Flame Weeding Apparatus for Low-Carbon Soil Treatment
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Solution Overview
Problem
Flame weeding techniques, despite their effectiveness, pose hazards to human health and the environment, are costly, and have limited effectiveness on certain plant species, with high operating costs and complex operational challenges, particularly concerning selective pressure on heat-tolerant species and the use of combustion-based equipment.
Innovation Solution
An apparatus using solid fuel, such as biomass pellets or agricultural waste, with a combustion chamber and adjustable flame delivery system, which reduces environmental impact by utilizing a natural fuel cycle and enhancing operational safety and cost-effectiveness, while allowing for versatile and efficient weed control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LPG burners are used for flame weeding, then effective weed control is achieved, but environmental harm increases due to carbon dioxide and water vapor production
Solution Approach 1:
The patent changes the fuel type parameter from LPG (fossil fuel) to biomass pellets (renewable resource), fundamentally altering the chemical composition and combustion products. This parameter change maintains the thermal effectiveness needed for weed control while eliminating harmful CO2 emissions and transforming waste into useful energy.
Solution Approach 2:
The patent converts agricultural waste (a harmful environmental factor when unmanaged) into biomass pellets that serve as clean fuel. The waste materials, which would otherwise pollute the environment, are transformed into a renewable energy source that eliminates CO2 emissions and provides effective flame weeding capability.
2Reliability
If conventional flame weeding equipment is used, then weed elimination is effective, but operating costs increase and combustion material consumption is high
Solution Approach 1:
The system uses agricultural waste products (corn cobs, straw, leaves) as fuel, which are naturally available on the farm. This self-service approach eliminates the need to purchase external combustion materials, reduces operating costs, and turns waste into a valuable resource for both fuel and weed control.
Solution Approach 2:
The patent recovers and utilizes agricultural waste materials that would otherwise be discarded or left as residue. By converting this discarded material into biomass pellets for fuel, the system recovers valuable energy resources and eliminates the need for continuous purchase of new combustion materials.
3Reliability
If flame weeding is applied to control weeds, then weed population decreases, but selective pressure is exerted on heat-tolerant species
Solution Approach 1:
The patent changes the thermal parameters by using controlled biomass combustion rather than high-temperature LPG flames. This parameter change allows for more uniform and controlled heat application that affects weed populations while being less likely to create selective pressure on heat-tolerant species, as the heat distribution is more diffuse and controlled.
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 achieves reduced environmental impact, cost savings, and improved operational reliability and safety by using solid fuels like biomass pellets, ensuring effective weed control with minimal carbon dioxide production and adaptable flame delivery for various applications.
Implementation Method 1
a combustion chamber (9), wherein the solid fuel is ignited
Implementation Method 2
The action of the flame weeding is related to the thermal shock caused on the pests by the rapid passage of the flame
Data Source
Figure 1~2
Figure 3~5
AI summary
An apparatus for removing weeds and harmful plants from the soil, comprising a fuel tank (1) containing solid fuel, such as pellets or biomass having a shape which is similar to the pellet, an auger (6), which takes the solid fuel from said tank (1) and transports it by means of at least one motor (2, 3), inside a combustion chamber (9), where said solid fuel is manually ignited or by means of one or more resistors, characterized in that one or more box-like structures (4) are fixed or hinged laterally and downstream of said combustion chamber (9) and in that inside each box-like structure (4) a duct (10) having an opening (11) is provided in a lower part of said structure (4), so that said opening (11) is pointed towards the soil and so that a flame emerging from said opening (11) coming from said combustion chamber (9) and being conveyed downward from said duct (10) touches the soil.