Helical Screw Separator with Entraining Elements
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Solution Overview
Problem
Existing separating devices in quarries are inefficient in separating clay-containing adhesions from stones, leading to complex and costly process sequences.
Innovation Solution
A device with multiple rotary elements in the form of helical screws, equipped with entraining elements on the shaft, effectively separates moist, slippery soils and clay-containing adhesions from larger components by drawing them through the free spaces between the rotary elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional separating devices are used, then the separation process becomes complex and costly, but the separation efficiency of clay-containing adhesions from stones remains insufficient
Solution Approach 1:
The separating device is divided into multiple rotary elements (at least two) with different rotational directions, where each element has specific separating surfaces that work in conjunction to separate different fractions of feed material through their coordinated rotational movements
Solution Approach 2:
The rotary elements are designed to rotate in different directions (first rotary element rotates in first direction, second rotary element rotates in second direction opposite to first direction), creating dynamic separating surfaces that efficiently capture and separate clay-containing adhesions from stones
2Manufacturing precision
If conventional separating devices are used, then equipment complexity increases, but separation precision of clay adhesions from stone surface remains insufficient
Solution Approach 1:
Different rotary elements have different separating surface characteristics optimized for specific separation tasks - the first rotary element has a separating surface for capturing clay-containing adhesions, while the second rotary element has a separating surface for processing stones, allowing each component to be optimized for its specific function
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 device simplifies the separation process by efficiently capturing and separating clay-containing adhesions from stones, reducing the complexity and cost of the process sequence in quarries.
Implementation Method 1
The device (1) has a plurality of rotary elements in the form of helical screws (4), wherein a rotary element (4) has a shaft (5) and at least one helix (6) extending spirally around the shaft (5)
Implementation Method 2
in addition to the helix at least one entraining element (8) arranged on the outer surface (7) of the shaft (5) and projecting from the outer surface (7) of the shaft (5) is provided for entraining and/or separating the first fraction (3)
Data Source
AI summary
The invention relates to a device (1) for separating feed material (2) for separating a first fraction (3) comprising moist, slippery, slimy, kneadable, dough-like, cohesive and/or tough soils and/or soil materials, preferably clay-containing or clay-like adhesions, further preferably intended for use in a quarry, with a plurality of rotary elements (4) designed as helical screws, wherein a rotary element (4) has a shaft (5) and at least one helix (6) extending spirally around the shaft (5). According to the invention, at least one entraining element (8) arranged on the outer surface (7) of the shaft (5) and projecting from the outer surface (7) of the shaft (5) is provided for entraining and/or separating the first fraction (3).