Filter Belt Speed Control for Particle Reduction

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Solution Overview

Problem

Current filter belt systems in treatment plants are not optimized to achieve maximal particle reduction, as they do not adjust belt speed in relation to the fluid amount, leading to inefficient purification and potential overflow, which can overload subsequent purification steps or increase operating costs.

Innovation Solution

A method and system that control the filter belt by measuring the fluid amount and level in the inlet chamber, allowing for the selection of predefined operating modes to maintain a thick filter mat, adjusting belt speed and operation parameters to maximize purification efficiency while preventing overflow, by using sensors and control systems to manage fluid flow and belt speed based on actual fluid conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the filter belt speed is increased to process more fluid, then the processing capacity is improved, but the filter mat thickness is reduced leading to lower purification efficiency

Engineering Contradiction:
Improveprocessing capacityVSAvoidpurification efficiency
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The filter belt speed is made dynamic and adjustable based on real-time fluid amount measurements. The system continuously adapts the belt speed to match the supplied fluid amount, allowing the system to process variable流量的fluid while maintaining optimal filter mat thickness for purification efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses sensors to measure the fluid amount in the inlet chamber and provides feedback to the control system. This feedback loop enables the control system to adjust the filter belt speed accordingly, ensuring that the filter mat thickness remains optimal for particle reduction while processing the actual fluid amount supplied.

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If the filter belt speed is decreased to maintain filter mat thickness, then the purification efficiency is improved, but the processing capacity is reduced

Engineering Contradiction:
Improvepurification efficiencyVSAvoidprocessing capacity
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The filter belt speed is dynamically adjusted based on the measured fluid amount. When fluid amount is low, the belt speed is reduced to maintain filter mat thickness and purification efficiency. When fluid amount increases, the belt speed is increased to maintain processing capacity, thus dynamically optimizing both parameters.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operating parameter (filter belt speed) based on the fluid amount conditions. By varying the belt speed parameter in response to fluid amount variations, the system maintains optimal filter mat thickness for purification while adapting processing capacity to match the supplied fluid amount.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If the filter belt operates at high speed to handle variable fluid amounts, then the processing capacity is improved, but the filter mat becomes too thin reducing particle reduction capability

Engineering Contradiction:
Improveprocessing capacityVSAvoidparticle reduction capability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The measurement means continuously monitor the fluid amount and provide feedback to the control system. Based on this feedback, the control system adjusts the filter belt speed to ensure that the filter mat thickness remains sufficient for effective particle reduction, while still maintaining high processing capacity when fluid amounts are high.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts the filter belt speed to match the supplied fluid amount, ensuring that the filter mat thickness remains optimal for particle reduction capability. This dynamic adjustment allows the system to maintain reliability in particle reduction while maximizing processing capacity under varying fluid conditions.

Inventive Principle:
Principle #15Dynamics

4Device complexity

If the filter belt speed is not adjusted to match fluid amount, then the system simplicity is maintained, but the purification efficiency is reduced due to overflow or insufficient processing

Engineering Contradiction:
Improvesystem simplicityVSAvoidpurification efficiency
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The system introduces measurement means to detect fluid amount and a control system to adjust filter belt speed based on this measurement. This feedback mechanism enables the system to automatically optimize purification efficiency by matching filter belt speed to the actual fluid amount supplied, eliminating the need for manual intervention while maintaining system simplicity.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP2231299B1Method and system for particle reduction.
Publication Date: 2014.12.31 SALSNES FILTER
  • EP2231299B1 patent drawingFigure 1
  • EP2231299B1 patent drawingFigure 2(1)~2(3)

AI summary

A method and system for creating a filter mat on a filter belt to achieve the best possible purification efficiency/particle reduction, and at the same time as the actual supplied fluid amount is processed. The system includes means for measuring supplied fluid amount, at any time, and the level in an inlet chamber, which information is used to control the filter belt to achieve maximal purification efficiency/particle reduction.