Mulch Coloring System Using Auger and Grinder
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Solution Overview
Problem
Existing methods for coloring mulch, particularly with powdered colorants, face challenges in achieving even application and are hindered by issues such as freezing at low temperatures and incompatibility with wet wood, while also being difficult to store effectively in cold conditions.
Innovation Solution
A system utilizing a screw conveyor to transport powdered colorant from a tank to a mulch conveyor, where it is mixed with mulch material and water in a grinder to produce colored mulch, ensuring consistent application and appropriate granularity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If powdered colorant is applied to mulch material, then coloration is achieved, but even application is difficult
Solution Approach 1:
The patent introduces a liquid carrier as an intermediary substance that dissolves the powdered colorant to create a liquid colorant composition. This liquid form acts as a mediator between the solid colorant and the mulch material, enabling even distribution through spraying while the carrier facilitates proper adhesion and transfer to the mulch surface.
Solution Approach 2:
The patent changes the physical state of the colorant from solid (powdered) to liquid by dissolving it in a carrier liquid. This parameter change in physical state enables the colorant to be applied in a controlled liquid form that can be evenly distributed, then transferred to the mulch material where it dries to provide consistent coloration.
2Manufacturing precision
If liquid colorant is used, then even application is possible, but freezing occurs at low temperatures
Solution Approach 1:
The patent modifies the chemical composition parameters of the liquid colorant by selecting carrier liquids with appropriate freezing points and volatilities. This allows the liquid colorant to remain fluid and applicably at low temperatures while maintaining its ability to provide even application, resolving the contradiction between applicability and temperature stability.
3Quantity of substance
If powdered colorant is stored in cold conditions, then storage is possible, but effectiveness is reduced due to freezing
Solution Approach 1:
The patent changes the physical and chemical parameters of the colorant formulation by using a liquid carrier that prevents freezing at storage temperatures. This allows the colorant to be stored in cold conditions while maintaining its liquid state and effectiveness, eliminating the freezing problems associated with powdered colorants.
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 method allows for efficient and even coloring of mulch with powdered colorants, overcoming temperature-related issues and storage challenges, while ensuring consistent color and granularity of the final product.
Implementation Method 1
An auger has a solid-core shaft, configured to move the powdered colorant from the reservoir to the conveyor
Implementation Method 2
A grinder receives the coarse mulch material, the powdered colorant, and the water from the conveyor and grinds the coarse mulch material and the powdered colorant together to produce a colored mulch
Data Source
AI summary
Coloring systems and methods include a conveyor that transports a material. An auger is configured to move a colorant from a reservoir to the conveyor. A grinder receives the material and the colorant from the conveyor and grinds the material and the colorant together to produce a colored material.