Composite Animal Litter Granules Reducing Bulk Density
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Solution Overview
Problem
Animal litter products composed mainly of high bulk density bentonite granules are difficult to handle due to their weight and bulk density, making them challenging to transport and manage.
Innovation Solution
A combination of high bulk density bentonite granules and low bulk density granules, with a specific mass ratio of 60:40 to 40:60, where the low bulk density granules have a core layer and a skin layer with a binder, reducing the overall bulk density while maintaining the ability to form high-strength and shallow clumps after urine absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If litter is composed mainly of bentonite granules, then clump strength and shallow depth are improved, but bulk density becomes excessively high making handling difficult
Solution Approach 1:
The invention uses a composite granule structure consisting of a bentonite core layer and a skin layer made of binder and filler materials. This composite structure maintains the high clump strength of bentonite while reducing overall bulk density through the inclusion of lighter materials in the skin layer, directly resolving the contradiction between strength and weight.
Solution Approach 2:
The granules have non-uniform composition with different properties in different regions: the core layer contains high-strength bentonite for clump formation, while the skin layer contains lighter binder and filler materials for reducing bulk density. This local differentiation allows simultaneous optimization of both strength and weight characteristics.
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 solution results in animal litter with reduced bulk density, facilitating easier handling while maintaining the strength and shallow depth of clumps, improving usability and reducing weight compared to conventional products.
Implementation Method 1
a skin layer including a binder that binds the numerous granules together, covering the surface of the core layer
Implementation Method 2
When litter used in such animal toilets absorbs liquid excreta such as urine that has been excreted by an animal, it generally forms a clump of multiple granules as the granules adhere to each other due to swelling and increased viscosity
Data Source
AI summary
A litter for animals includes a plurality of granular materials including a high-bulk density granular material and a low-bulk density granular material at a ratio by mass of 60:40-40:60. The high-bulk density granular material contains bentonite as a main component, and the low-bulk density granular material is configured of a core layer and a skin layer, the skin layer coating the surface of the core layer and containing a binder by which grains of the plurality of granular materials are bound to each other.