Self-Cleaning Brush Scraper for Filter Belt Clogging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing filtration apparatuses with continuously or intermittently drivable filter belts face challenges in cleaning and maintenance, leading to solidification and wear of the filter belt and deflection roller, incomplete removal of solids, and increased maintenance downtimes due to clogging and complex handling processes.
Innovation Solution
A filtration apparatus equipped with a rotationally driven brush cleaner featuring a self-cleaning scraper that continuously removes solids from the filter belt, preventing accumulation and clogging, and an adjustable scraper design for varying cleaning effectiveness, along with automatic speed regulation and a movable filter belt assembly for easier maintenance and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a continuously running filter belt is used for filtration, then the plant can operate without stopping for cleaning, but solids accumulate on the belt and cause clogging and wear
Solution Approach 1:
The scraper removes solids from the filter belt before they can accumulate and cause clogging. By performing preliminary cleaning action continuously during operation, the system prevents the harmful effect of solid accumulation while maintaining continuous filtration productivity
Solution Approach 2:
The scraper is driven by the filter belt itself through friction contact, making the cleaning system self-powered without requiring external motors or additional energy input. The filter belt's own movement provides the cleaning action, eliminating the need for separate power sources
2Reliability
If a scraper is used to remove solids from the filter belt, then solids are removed continuously, but the scraper itself accumulates solids requiring maintenance standstills
Solution Approach 1:
The brush cleaner removes solids from the scraper surface using the scraper's own movement and friction. The brush is positioned to contact the scraper during its operation, automatically cleaning the scraper without requiring separate maintenance actions or stopping the filtration apparatus
Solution Approach 2:
The brush acts as an intermediary cleaning element between the scraper and the accumulated solids. Instead of directly removing solids from the filter belt without self-cleaning, the brush mediates by first cleaning the scraper surface, ensuring the scraper remains effective without maintenance interruptions
3Reliability
If the filter belt is replaced completely, then filtration efficiency is restored, but the deflection roller must be removed making the process complex
Solution Approach 1:
The filter belt is designed as a modular assembly that can be replaced independently of the deflection roller and other fixed components. The belt can be segmented into removable sections or replaced as a complete but self-contained unit, simplifying the replacement process without requiring disassembly of the entire filtration apparatus
Solution Approach 2:
The filter belt is extracted as a separate replaceable component from the filtration system. The belt can be removed and replaced without taking out the deflection roller or other structural elements, allowing maintenance personnel to service the filter belt independently while leaving the main apparatus intact
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 solution ensures continuous, efficient solid removal and filtration, reduces maintenance downtimes, and simplifies filter belt replacement, allowing for adaptations to different process liquids and solids, while maintaining filtration efficiency and preventing solid accumulation and clogging.
Implementation Method 1
a rotationally driven brush with which a brush cleaner having a scraper is associated
Data Source
AI summary
A filtration apparatus for filtering and separating solids from liquids is provided that includes at least one liquid-permeable, continuously or intermittently drivable filter belt, an intake for charging the liquid/solid mixture to be filtered onto the filter belt in a charging zone and a belt cleaner for removing the solids deposited at the filter belt from a belt section conveyed out of the charging zone in an expulsion zone. The belt cleaner has at least one rotatingly drivable brush with which a brush cleaner having a scraper is associated which is arranged in the path of the bristles of the rotating brush. The rotating brush efficiently removes the deposited solids from the filter belt, while the scraper of the brush cleaner simultaneously ensures that the dissolved solids do not settle at the brush and clog it.