Cartridge Filter Spring-Loaded Drain Gap
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Solution Overview
Problem
Existing fluidized bed processor filter systems face challenges in thorough cleaning, as backflush air pulsing is inadequate, and liquid cleaning methods often result in liquid buildup and particulate retention within the filter media.
Innovation Solution
A cartridge filter assembly with a rack and rod system that allows for the creation of a drain path by using a spring to lift the filter cartridge and end cap, enabling effective drainage of cleaning liquid and particulate during the cleaning process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If liquid cleaning solution is introduced at a rate higher than the flow rate through the filter media, then cleaning effectiveness is improved, but liquid buildup inside the filter occurs
Solution Approach 1:
The filter assembly is segmented into an internal cleaning chamber and external environment, with controlled openings that allow liquid introduction and drainage while preventing uncontrolled buildup. The cleaning chamber is separated from the filter media interior, enabling independent liquid management.
Solution Approach 2:
A drainage mechanism acts as an intermediary between the cleaning chamber and the filter interior, controlling liquid flow to prevent buildup while maintaining cleaning effectiveness. The drainage system mediates between the high-rate liquid introduction and the filter media's flow capacity.
2Productivity
If back flush air pulsing is used for filter cleaning, then the filtering operation can continue without interruption, but the cleaning is not complete and particulate material remains
Solution Approach 1:
The filter cleaning operation is made continuous through the spring-loaded automatic engagement and disengagement mechanisms. The filter can be cleaned without stopping the fluidized bed processor, as the cleaning chamber operates independently while the filter remains in place during processing.
Solution Approach 2:
The system uses dynamic spring-loaded mechanisms that automatically engage the cleaning chamber with the filter during cleaning and disengage during operation. This dynamic adjustment allows the filter to transition between filtering and cleaning modes without manual intervention or process interruption.
3Device complexity
If the filter assembly is fixed in position during cleaning, then structural simplicity is maintained, but drainage and cleaning liquid flow are restricted
Solution Approach 1:
The cleaning chamber is designed with dynamic spring-loaded engagement mechanisms that automatically position the chamber relative to the filter during cleaning operations. The spring force enables automatic sealing and alignment without complex manual positioning systems, maintaining structural simplicity while enabling effective drainage.
Solution Approach 2:
The spring-loaded mechanisms provide self-service automatic engagement and disengagement of the cleaning chamber with the filter. The system self-regulates the cleaning process, opening and closing drainage paths based on spring force and pressure differentials, eliminating the need for complex external control systems.
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
Facilitates efficient and thorough cleaning of pleated cartridge filters by allowing for the drainage of cleaning solution and particulate, improving filter maintenance and reducing the risk of residual material within the filter media.
Implementation Method 1
A spring resides between the end cap and the filter bracket. When the filter assembly is lowered, the spring lifts the bracket and cartridge filter to create a gap or space between the second end of the filter and the end cap through which cleaning liquid can drain
Data Source
AI summary
The fluidized bed processor of the present invention includes an internal filter assembly with a rack and a cartridge-type filter supported at the lower end by a bracket. The rack includes an elongated rod extending through the filter. An end cap is provided on the lower end of the rod for normal sealing engagement with the filter bracket. During normal operation of the processor, the upper and lower ends of the filter are sealed. During or after cleaning of the filter, the rack is lowered, and a spring separates the filter and support bracket from the end cap so as to create a gap for drainage of cleaning fluid.