Device for extracting powder or particulate material by suction
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Solution Overview
Problem
Existing suction devices for hazardous materials lack effective containment during filter changes, risking exposure to operators due to incomplete material capture and leakage.
Innovation Solution
The suction line directly enters the filter body, ensuring all material is captured within the filter body, and the fine filter is arranged inside the filter body, preventing escape and allowing for a sealed system with the collection container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the suction line opens into the collection container as in prior art, then the structure is simple, but the material can escape and operators may be exposed to hazardous substances
Solution Approach 1:
The suction line is nested within the filter body structure, opening directly into it rather than into the collection container. This nesting arrangement ensures that all suctioned material is captured by the filter body first, preventing escape into the collection container and eliminating operator exposure risks during container emptying.
Solution Approach 2:
The suction line opening is extracted from the collection container and repositioned to open directly into the filter body. This separation of the suction entry point from the collection container eliminates the pathway for material escape and protects operators during maintenance operations.
2Volume of stationary object
If separate filter bodies and fine filters are arranged outside each other, then they can be serviced independently, but the device occupies more space and sealing becomes more difficult
Solution Approach 1:
The fine filter is arranged inside the filter body, creating a nested configuration. This nesting reduces the overall device volume and allows the cover to seal both the fine filter and filter body simultaneously, simplifying the sealing structure while maintaining serviceability.
Solution Approach 2:
The sealing function is merged into a single cover that seals both the fine filter and filter body together. This unified sealing approach reduces the number of separate sealing interfaces and simplifies the manufacturing process while maintaining effective containment.
3Object-affected harmful factors
If the collection container is frequently emptied for hazardous material removal, then operational safety is maintained, but operators risk exposure during the emptying process
Solution Approach 1:
The suction line opening is extracted from the collection container and repositioned to open into the filter body. This extraction creates a sealed containment system where hazardous material cannot escape during container emptying, eliminating operator exposure risk while maintaining operational efficiency.
Solution Approach 2:
The filter body and fine filter arrangement creates preliminary containment of hazardous material before it can reach the collection container. This preliminary protective action ensures that even when the container is emptied, no hazardous material is exposed, allowing operators to work efficiently without protective equipment.
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 design completely contains hazardous materials, preventing operator exposure during filter changes and providing a compact, efficient filtration system with enhanced safety and space savings.
Implementation Method 1
a suction unit 5 indicated by a dashed line, which can for example be designed as an electric motor or have an electric motor and produces a suction draft in the suction line 4
Data Source
Figure 1~3
Figure 4~5
AI summary
A device (1) for extracting powdery or dust-like material, in particular hazardous substances, comprises a housing (2), a collection container (3) for receiving the extracted material, an extraction line (4) leading to the collection container (3), a suction unit (5) generating an induced draft in the extraction line (4), a filter body (12) arranged between the extraction line (4) and the suction unit (5) in the direction of the induced draft, and a fine filter (13) arranged between the filter body (12) and the suction unit (5) in the direction of the induced draft. The extraction line (4) opens into the filter body (12) in such a way that the extracted material enters the filter body (12) directly. The filter body (12) and the fine filter (13) are arranged within each other.The fine filter (13) has a lid (10) which is sealed to the collection container (3) in such a way that only an opening (11) remains for filtered air exiting from the fine filter (13).