Dry Filter Vertical Duct Stacking for Mining Separation
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Solution Overview
Problem
Existing dry filters for underground mine and tunnel construction have limitations in separation efficiency and adaptability due to their design, which results in suboptimal utilization of filter housing space and increased installation height, making them less effective in confined conditions.
Innovation Solution
The raw gas duct and clean gas duct are positioned one above the other, separated by a partition wall that inclines towards the roof, allowing for optimal utilization of the filter housing space, enhanced separation efficiency, and adaptability through modular design and adjustable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the raw gas duct and clean gas duct are arranged side by side in the filter housing, then the filter housing can be compact, but only part of the total area can be utilized for dust separation
Solution Approach 1:
The patent transitions from a horizontal side-by-side arrangement of raw gas duct and clean gas duct to a vertical stacked arrangement. This dimensional change allows the filter elements to be positioned between the two ducts in the vertical direction, effectively utilizing the entire horizontal cross-sectional area of the filter housing for dust separation, thereby increasing productivity without requiring additional housing area.
2Productivity
If the filter housing is enlarged to increase separation area, then dust separation output is improved, but the installation height increases making it unsuitable for confined underground spaces
Solution Approach 1:
The patent rearranges the ducts and filter elements in the vertical dimension, stacking the raw gas duct and clean gas duct one above the other with filter elements positioned between them. This vertical stacking allows the entire horizontal area to be used for separation while maintaining a compact overall height, enabling high productivity without increasing installation height, thus suitable for confined underground mining spaces.
3Productivity
If the filter housing is extended towards side walls to increase separation area, then dust separation output is improved, but the dimensions become less convenient for confined conditions
Solution Approach 1:
The patent utilizes the vertical dimension by stacking the raw gas duct and clean gas duct vertically with filter elements arranged between them. This arrangement maximizes the use of horizontal cross-sectional area for separation while maintaining a compact vertical profile, making the filter housing easier to install in confined underground spaces without sacrificing separation output.
4Reliability
If triangular part sections are formed in the filter housing with partition walls, then clean gas and raw gas can be separated, but only one third of the area is available for raw gas transport and two thirds for clean gas discharge
Solution Approach 1:
The patent replaces the triangular part section arrangement with a vertical stacking configuration where the raw gas duct and clean gas duct are positioned one above the other. This allows the filter elements to be arranged in the horizontal plane between the two ducts, maximizing the dust separation area without compromising gas flow separation, thereby improving productivity while maintaining reliability.
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
This configuration increases the separation output by 80-100% without enlarging the filter housing, reduces air speed by 40-50%, and allows for easier installation and maintenance, making it more suitable for confined spaces and changing application conditions.
Implementation Method 1
the partition wall running in the filter housing and forming the complete filter housing horizontal that is designed to lead at an inclination to the roof of the filter housing from the raw gas inlet
Implementation Method 2
filter elements assigned to the partition walls and integrated with regard to the filter housing
Data Source
AI summary
A dry filter 1 to be used in particular in underground mining and tunnel construction having a frame construction 17 into which the required part housings 25-28 can be inserted from the side. The required partition wall 8 is arranged so that an optimal large filtering surface is available both for the incoming raw gas and for the outflowing clean gas. Raw gas duct 5 and clean gas duct 6 run horizontally one above the other and are separated from each other by the sloping 8. This means that a very large filtering surface is available.