Textile Filter Bag for Grinding Dust Separation
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Solution Overview
Problem
Existing glass grinding machines do not effectively filter out toxic components and microparticles from grinding dust, leading to environmental pollution, as these particles are not adequately removed by conventional wastewater treatment plants.
Innovation Solution
A filter device with a simple structure comprising a filter unit, a filter bag made of textile material, and a scanning plate with a hole grid, which allows grinding water to flow through while retaining grinding dust, enabling efficient filtration of glass grinding dust without the need for complex equipment or significant structural changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centrifuges are used to dispose of dust and microparticles, then filtration effectiveness is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent extracts only the essential filtration function from complex centrifugal systems, using a simple textile filter bag to separate grinding dust from wastewater. This removes unnecessary mechanical complexity while maintaining effective particle removal through passive filtration.
Solution Approach 2:
The patent employs disposable or easily replaceable textile filter bags instead of expensive, complex centrifugal machinery. The filter bags can be replaced periodically without requiring sophisticated maintenance, reducing both initial investment and operational complexity.
2Reliability
If complex water treatment processes such as reverse osmosis or ion exchange are used, then filtration effectiveness is improved, but device complexity and operational cost increase
Solution Approach 1:
The patent extracts the core filtration need from complex multi-stage water treatment processes, implementing a single-stage textile filtration system that adequately handles grinding dust removal without requiring reverse osmosis, ion exchange, or other sophisticated treatment methods.
Solution Approach 2:
The patent applies filtration tailored to the specific requirements of grinding dust removal, using textile material with appropriate pore sizes for capturing glass particles. This localized, targeted approach avoids the unnecessary complexity of general-purpose complex water treatment systems designed for broader contaminant removal.
3Device complexity
If textile filters are used to treat smaller water volumes, then device complexity is reduced, but uniform loading and process adjustment become difficult
Solution Approach 1:
The patent segments the filtration function into a modular filter bag that can be independently replaced and adjusted. This segmentation allows for easy process adaptation by simply changing the filter bag rather than adjusting complex system parameters, simplifying operational adjustments for varying water volumes and dust loads.
Solution Approach 2:
The patent enables process parameter changes through physical replacement of filter bags with different characteristics (size, material, pore structure) rather than requiring complex control system adjustments. This allows operators to adapt to varying grinding conditions by selecting appropriate filter bags, simplifying the operation of the filtration system.
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 filter device effectively removes grinding dust and toxic components from the grinding water, preventing environmental pollution and allowing for the reuse of filtered water in the glass grinding process, thus reducing water consumption and operational costs.
Implementation Method 1
a filter unit (2) for filtering the grinding wastewater, in particular with a filter bag (6) made of textile material
Implementation Method 2
The inlet (1) opens onto the sprinkling plate (9), so that grinding wastewater, distributed over the sprinkling plate (9), enters the filter bag (6)
Data Source
Figure 1
Figure 2
AI summary
A filter device (100) for filtering grinding dust, in particular glass grinding dust, from grinding wastewater and a spectacle lens grinding system (200) with such a filter device (100) are provided. The filter device (100) has an inlet (1) for supplying grinding wastewater to a filter unit (2) for filtering the grinding wastewater, as well as a container (3) with a container opening (4) for inserting the filter unit (2) and an outlet (5) for filtered water. The filter unit (2) comprises a filter bag (6) made of textile material with a bag opening (7) and a trickle plate (9) with a perforated grid (10) above the bag opening (7). The filter bag (6) can be inserted into the container opening (4) of the container (3), and the inlet (1) opens onto the trickle plate (9).Grinding wastewater from the spectacle lens grinding unit (30) is distributed on the trickle plate (9) via the perforated grid (10) and enters the filter bag (6), whereby grinding dust from the grinding wastewater remains in the filter bag (6) and filtered water passes through the filter bag (6) into the container (3), or into a water reservoir (31) of the spectacle lens grinding system (200).