Deblinding Apparatus Scattering Members Screen Occlusions

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Solution Overview

Problem

Existing screening systems face the challenge of occlusions forming in screen openings due to lodged particulate matter, leading to blinding, which hinders the separation process of solid particulate materials from slurry.

Innovation Solution

A deblinding apparatus is introduced, comprising a support frame with a grid structure and scattering members within compartments, where unsecured objects collide with the screen assembly to remove occlusions, utilizing optimized sizes, shapes, and masses to enhance collision rates and prevent damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional screening systems are used without deblinding apparatus, then the structure is simple and cost is low, but occlusions form in screen openings leading to blinding and reduced productivity

Engineering Contradiction:

Improveseparation process efficiencyVSAvoidscreening system structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The deblinding apparatus is divided into multiple compartments, each containing scattering members and unsecured objects. This segmentation allows the system to address blinding issues across different screen regions independently while maintaining overall system simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Scattering members act as intermediaries between the unsecured objects and the screen assembly. They redirect the motion of unsecured objects to create effective collisions with occluded particles, enabling deblinding without direct contact between unsecured objects and the screen.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If unsecured objects are used for deblinding, then collision rates increase and occlusions are removed effectively, but there is risk of damage to screen assembly

Engineering Contradiction:

Improveocclusion removal effectivenessVSAvoidscreen assembly damage risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The scattering members are positioned and configured to cushion and redirect the impact forces before they reach the screen assembly. This pre-cushioning mechanism reduces the harmful effects of collisions while maintaining effective deblinding action.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The mass, size, and material properties of unsecured objects and scattering members are optimized to achieve the right balance between collision effectiveness and screen protection. By adjusting these parameters, the system achieves reliable occlusion removal while minimizing damage risk.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If scattering members are added to compartments, then collision dynamics are optimized for deblinding, but the device complexity and manufacturing cost increase

Engineering Contradiction:

Improvedeblinding effectivenessVSAvoidapparatus assembly complexity

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The compartmentalized structure allows scattering members to be installed and adjusted independently in each section, simplifying the manufacturing and assembly process despite the added complexity of multiple components.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The scattering members serve multiple functions: they redirect unsecured objects, cushion impacts, and can be removed or adjusted for maintenance. This multi-functionality justifies the added complexity by providing versatile deblinding capabilities.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 deblinding apparatus effectively removes occlusions during operation, maintaining the screen assembly's integrity and ensuring continuous separation of solid particulate materials from liquid media by utilizing controlled collisions.

Implementation Method 1

unsecured objects within the compartments are configured to collide with the screen assembly in response to movement of the support frame

Methodology Applied

Scientific EffectCollision: Impact Force

Implementation Method 2

unsecured objects within the compartments are configured to collide with scattering members disposed within the compartments in response to movement of the support frame

Methodology Applied

Scientific EffectKinetic energy transfer: Conservation of Momentum

Data Source

PatentUS11458505B2Deblinding apparatuses and methods for screening

Publication Date: 2022.10.04 DERRICK CORP

AI summary

Deblinding apparatuses and deblinding methods are provided. A deblinding apparatus may include a support frame including a grid structure and multiple compartments. Multiple compartments may be formed by a respective portion of the grid structure and a respective set of support members. Further, multiple scattering members may be disposed within a compartment. Scattering members be removably affixed to a portion of the grid structure that forms a part of a compartment. Multiple unsecured objects may be placed within a compartment. When attached to a screen and in response to movement of support frame, at least one unsecured object of the multiple unsecured objects may collide with a first scattering member and with a surface of the screen to thereby cause deblinding of the screen. Sizes, shapes, masses, and morphologies of unsecured objects may be designed to optimize collision rates of unsecured objects with scattering members and with the screen assembly.