Stone Waste Aggregate Production via Segmented Sorting and Crushing

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Solution Overview

Problem

The existing methods for producing stone aggregate do not effectively utilize stone waste by-products, leading to unnecessary landfill disposal and inefficiencies in recycling.

Innovation Solution

A method involving the procurement, sorting by type and color, and a one or two-stage crushing process to produce stone aggregate, followed by screening, washing, and drying, utilizing stone waste by-products such as remnants and construction debris to create aggregates suitable for various applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If stone waste by-products are not effectively utilized, then landfill disposal is unnecessary, but recycling efficiency is low

Engineering Contradiction:

Improvestone waste disposalVSAvoidrecycling efficiency

Core Design Contradiction:

Loss of substanceVSProductivity

Solution Approach 1:

The recycling process is divided into distinct stages: sorting by type and color, one or two-stage crushing, screening into different sizes, washing, and drying. Each stage handles specific aspects of processing, improving overall efficiency and reducing waste effectively.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Sorting by type and color is performed before crushing, and extraction of fines is done during crushing. These preliminary actions prepare the material for more efficient processing in subsequent stages, reducing waste and improving recycling productivity.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If a one or two-stage crushing process is used, then aggregate production is efficient, but process complexity increases

Engineering Contradiction:

Improveaggregate production efficiencyVSAvoidcrushing process complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system allows flexibility in using one or two-stage crushing processes depending on the specific requirements and material characteristics. This dynamic approach optimizes efficiency while managing complexity by selecting the appropriate number of stages for each production scenario.

Inventive Principle:

Principle #15Dynamics

3Manufacturing precision

If sorting is performed by type and color, then product quality is improved, but processing time increases

Engineering Contradiction:

Improveaggregate qualityVSAvoidprocessing time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

Sorting by type and color is performed as a preliminary action before crushing. This ensures that materials are pre-categorized for optimized processing, improving final product quality while the extraction of fines during crushing helps reduce overall processing time.

Inventive Principle:

Principle #10Preliminary action

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 approach reduces waste sent to landfills by recycling stone waste into usable aggregates for diverse applications, ensuring efficient production and utilization of materials.

Implementation Method 1

subjecting the sorted stone waste by-products to a one and/or two-stage crushing process to produce aggregate

Methodology Applied

Scientific EffectMechanical force: Mechanical Force

Implementation Method 2

washing the aggregate

Methodology Applied

Scientific EffectWashing:

Implementation Method 3

drying the aggregate

Methodology Applied

Scientific EffectEvaporation: Evaporation

Data Source

PatentUS11779934B2Aggregate production system and method

Publication Date: 2023.10.10 RECYCLED GRANITE CORP

AI summary

An aggregate production method includes procuring stone waste by-products, sorting the stone waste by-products by type and color, and subjecting the sorted stone waste by-products to a two-stage crushing process to produce aggregate. The aggregate is screened into different sizes and placed according to size into a bag or container.