Modular Concentrating Bowl With Replaceable Wear-Resistant Inserts

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Solution Overview

Problem

Existing centrifugal concentrators face issues with short service lifetime, unreliable fastening of wear-resistant inserts, lack of maintainability, and difficulty in replacing components due to monolithic designs and inadequate wear-resistant materials on working surfaces.

Innovation Solution

A modular concentration bowl design comprising interchangeable upper and lower parts with an internal frame and wear-resistant inserts attached to the inner frame, forming ledges and cavities, ensuring reliable fastening and ease of replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the inner frame of the concentration bowl is made monolithic, then the structural strength is improved, but the replaceability of upper and lower parts is lost and maintenance becomes difficult

Engineering Contradiction:

Improvestructural strengthVSAvoidreplaceability of parts

Core Design Contradiction:

StrengthVSEase of repair

Solution Approach 1:

The concentration bowl is divided into an upper part and a lower part that can be independently replaced. The inner frame is correspondingly segmented into upper and lower frames, allowing maintenance personnel to replace worn parts without discarding the entire bowl, thus resolving the contradiction between structural strength and ease of repair.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If wear-resistant inserts are not provided on the working surface, then the device complexity is reduced, but the service lifetime significantly decreases

Engineering Contradiction:

Improvedevice complexityVSAvoidservice lifetime

Core Design Contradiction:

Device complexityVSDuration of action of stationary object

Solution Approach 1:

Wear-resistant inserts are provided specifically at the ledges on the working surface where material contact and wear occur most intensely. This localized application of wear-resistant material extends the service lifetime without requiring the entire device to be overly complex, resolving the contradiction between device complexity and service lifetime.

Inventive Principle:

Principle #3Local quality

3Ease of manufacture

If the working surface is made of inelastic material, then the manufacturing simplicity is improved, but the service lifetime significantly decreases

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidservice lifetime

Core Design Contradiction:

Ease of manufactureVSDuration of action of stationary object

Solution Approach 1:

The working surface combines an elastic base material with wear-resistant inserts made of different materials (such as metal or ceramic). This composite structure leverages the elasticity of the base material for manufacturing simplicity while the wear-resistant inserts provide extended service lifetime, resolving the contradiction between ease of manufacture and service lifetime.

Inventive Principle:

Principle #40Composite materials

4Ease of operation

If inserts are fixed on the elastic working surface, then the installation simplicity is improved, but the reliability of fastening decreases due to abrasive wear

Engineering Contradiction:

Improveinstallation simplicityVSAvoidreliability of fastening

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The wear-resistant inserts are pre-fixed to the rigid inner frame before the elastic working surface material is applied. This preliminary action ensures that the inserts are securely anchored to a stable substrate, preventing separation during operation while maintaining installation simplicity. The elastic working surface is then applied over the inserts, completing the structure without compromising fastening reliability.

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

The modular design enhances the service lifetime, maintainability, and manufacturing ease of centrifugal concentrators by providing durable, replaceable components and robust fastening of wear-resistant inserts.

Implementation Method 1

designed for mineral dressing, and can be used to separate solid particles by density

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS12465924B2Embodiments of a modular concentrating bowl for a centrifugal concentrator

Publication Date: 2025.11.11 SHELKUNOV YURY ANATOLEVICH

AI summary

The options for the modular concentration bowl of the centrifugal concentrator and the options for the method of its manufacture relate to devices designed for mineral dressing, and can be used to separate solid particles by density. As an example, the claimed invention can be used for processing auriferous ores and finely dispersed sands as well as copper and nickel ores that are not amenable to magnetic separation. The objective of the claimed invention is to create a device for gravitational separation of ores with a long service lifetime and convenient in service as well as to develop a method for its manufacture. The technical result of the claimed invention with respect to the device and method is an increase in the service lifetime of the concentration bowl, its maintainability, reliability of the device and ease of manufacture.