Powder Sampling Device with Stationary Container and Segmented Housing
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Solution Overview
Problem
Existing devices for sampling freely falling powders or granulates often result in sample separation during the sampling process, leading to incorrect analyses, and lack the ability to adjust sample quantity and clean the interior without disassembly.
Innovation Solution
A device with a sample container that remains stationary and unshaken during transport to the analysis station, featuring a radially mounted housing with a slide and removal tongs that allow for adjustable sample collection and easy cleaning, ensuring the sample is not moved or shaken, and allowing for manual or mechanized operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sample container is moved and shaken during transport to the analysis station, then the sample can be easily transferred, but the sample separates and leads to incorrect analyses
Solution Approach 1:
Instead of moving the sample container during transport, the invention inverts the approach by keeping the sample container stationary and moving the entire sampling device (including the sample container) to the analysis station. This prevents sample separation while maintaining ease of operation, as the sample remains undisturbed throughout the transport process.
Solution Approach 2:
The sample container is nested within the sampling device housing, which protects it during transport. The sampling device acts as a protective container for the sample container, allowing the sample to be transported without shaking or separation while remaining easily accessible for analysis.
2Ease of operation
If the sample quantity is fixed in the sample container, then the sampling process is simplified, but the ability to adapt to different analysis requirements is reduced
Solution Approach 1:
The sample container is designed with adjustable capacity, allowing the sampling device to adapt to different analysis requirements. The container can be configured to hold different sample quantities while maintaining a simple sampling process, thus achieving both ease of operation and adaptability.
Solution Approach 2:
The invention allows changing the parameter of sample quantity by using sample containers with different capacities or by adjusting the filling volume. This enables adaptation to various analysis requirements while keeping the sampling mechanism itself simple and easy to operate.
3Ease of repair
If the housing interior is designed for easy cleaning, then maintenance is simplified, but the structural complexity may increase
Solution Approach 1:
The housing is segmented into removable parts, particularly the front section that can be detached to provide access to the sample container and interior surfaces. This segmentation enables easy cleaning of previously inaccessible areas without requiring complex disassembly, thus improving ease of repair while minimizing structural complexity.
Solution Approach 2:
The sample container is designed to be extractable from the housing, allowing it to be removed for cleaning or replacement. This extraction capability simplifies maintenance by enabling direct access to critical surfaces that require frequent cleaning, while the overall housing structure remains relatively simple.
Data Source
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AI summary
Device for taking samples from a powder stream. The invention relates to a device for taking samples from a powder stream which is guided in a powder line (3). The device consists of a housing (1) arranged on the powder line (3), a slide (5) having a sample well (13) at the top with respect to the powder stream, and a pushing device. Matching the sample well (13) is a sample container (18). An associated sampling apparatus (19) with sampling tongs (20) can be inserted into the housing (1) in such a manner that the sampling tongs (20) are axially above the sample well (13) in the position of rest of the slide (5) and can be placed onto the sample container (18) and can be connected to the latter.