Pelletizing Disc Scraper Control With 3-Axis Blade Adjustment

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Solution Overview

Problem

Existing pelletizing devices lack precise control over scraper movement and require significant human intervention for operation and maintenance, leading to inefficiencies and increased downtime.

Innovation Solution

A material pelletizing device with a tiltable and rotatable pelletizing disk equipped with adjustable scraper modules that allow precise control of scraper blades in three angular directions, utilizing electro-mechanical actuators and sensors for automated operation and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional fixed scrapers are used on pelletizing discs, then the device structure is simple, but the control precision of scraper movement is poor and requires significant human intervention

Engineering Contradiction:

Improvescraper movement control precisionVSAvoidscraper adjustment mechanism complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The scrapers are transformed from fixed static components to dynamically adjustable components. Each scraper can be independently positioned and adjusted in real-time during operation, allowing precise control of scraper movement and position without requiring complex manual intervention mechanisms.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system incorporates automated control mechanisms that enable the scrapers to self-adjust and self-regulate their positions. The control system automatically manages scraper movements based on process requirements, reducing the need for manual human intervention in operation and maintenance.

Inventive Principle:

Principle #25Self-service

2Productivity

If manual adjustment of scrapers is used, then the device complexity is low, but the productivity is limited due to frequent human intervention and maintenance downtime

Engineering Contradiction:

Improvepelletizing process productivityVSAvoidscraper operation automation level

Core Design Contradiction:

ProductivityVSExtent of automation

Solution Approach 1:

Manual mechanical adjustment systems are replaced with automated control systems. The scraper adjustment mechanisms are integrated with electronic controls and sensors that automatically regulate scraper positions and movements, eliminating the need for frequent manual intervention and reducing maintenance downtime.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The automated scraper control system ensures continuous operation without interruption for manual adjustments. The scrapers can be precisely controlled and repositioned automatically during the pelletizing process, maintaining continuous productive action and eliminating productivity losses associated with manual maintenance interventions.

Inventive Principle:

Principle #20Continuity of useful action

3Adaptability or versatility

If fixed scraper positions are used, then the ease of operation is high, but the adaptability to different material conditions and process requirements is limited

Engineering Contradiction:

Improvescraper configuration adaptabilityVSAvoidscraper adjustment operation ease

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The scraper system is divided into independent adjustable segments. Each scraper can be individually positioned and adjusted according to specific material conditions and process requirements, allowing the system to adapt to varying operational demands while maintaining ease of operation through modular adjustment capabilities.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system enables dynamic changes in scraper parameters such as position, angle, and spacing. These parameters can be adjusted automatically or manually depending on the specific application requirements, providing versatility in handling different material conditions while keeping the operation simple through standardized adjustment interfaces.

Inventive Principle:

Principle #35Parameter changes

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

Enhances productivity by up to 5% through precise scraper control, reduces human intervention, and increases component reliability with lower maintenance needs.

Implementation Method 1

Through the process of rolling and agglutination of particles, combined with the centrifugal force provided by the rotation of the plate, the diameter of the pellets is defined.

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS20250354234A1Device for pelletizing materials

Publication Date: 2025.11.20 VALE SA

AI summary

The present invention describes a device for pelletizing materials comprising a tiltable pelletizing disc configured for rotation, and a plurality of adjustable scraping modules attachable to the pelletizing disc, wherein each adjustable scraping module of the plurality of adjustable scraping modules includes a scraping blade and is configured to rotate the scraping blade in three angular directions.