Hydraulic Density Separator With Paddle Washing for Heavy-Fraction Purity
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Solution Overview
Problem
Existing hydraulic density separation devices are limited by small size, low throughput, and require complex post-processing to remove impurities from the heavy material fraction, which increases operational costs.
Innovation Solution
A hydraulic density separation device with a conveying device featuring a shaft with conveyor screw sections and washing sections equipped with paddles, allowing for simultaneous conveyance and cleaning of the heavy material fraction, while a water flow transfers the light fraction to a separation chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional hydraulic density separation device is used, then separation of heavy and light fractions is achieved, but the device size is too small and throughput is low
Solution Approach 1:
The device is divided into distinct functional sections: a receiving chamber for initial separation, a washing section with paddles for cleaning heavy fraction, and a separation chamber for final light fraction collection. This segmentation allows each section to be optimized for its specific function while contributing to overall increased throughput without requiring a proportional increase in total device volume.
Solution Approach 2:
The conveyor device operates in a three-dimensional space within the receiving chamber, with the shaft and paddles extending vertically and horizontally. This spatial utilization allows for compact arrangement of multiple functional elements, achieving high throughput within a limited footprint by exploiting vertical and horizontal dimensions rather than only linear extension.
2Manufacturing precision
If conventional separation devices are used, then heavy fraction is separated, but impurities and adhering dirt remain requiring complex post-processing
Solution Approach 1:
The washing section with paddles performs preliminary cleaning of the heavy fraction during the separation process itself. The paddles agitate and wash the heavy material as it is conveyed, removing impurities and adhering dirt before the material leaves the device. This preliminary action eliminates the need for complex post-processing operations.
Solution Approach 2:
The washing function is merged with the conveying function in the same device. The conveyor shaft with paddles simultaneously transports the heavy fraction and cleans it through agitation and water flow. This combination of functions achieves high separation purity without requiring separate post-processing equipment or operations.
3Manufacturing precision
If washing sections are added to clean heavy fraction, then separation purity is improved, but device complexity increases
Solution Approach 1:
The conveyor shaft serves multiple functions: it conveys the heavy fraction from the receiving chamber and simultaneously acts as a washing mechanism through its paddles. This multi-functionality achieves high heavy fraction purity without adding separate washing equipment, thereby avoiding significant increases in device complexity.
Solution Approach 2:
The conveyor device washes the heavy fraction it is already transporting. The paddles on the conveyor shaft agitate and clean the material during its own conveyance process, without requiring external washing equipment. This self-service approach improves purity while maintaining relatively simple device structure.
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 achieves high-purity separation of heavy and light fractions with reduced post-treatment needs, enhancing efficiency and reducing operational costs by integrating conveyance and cleaning functions.
Implementation Method 1
a flow generator (7) for generating a water flow in the receiving chamber (6), wherein a flow path for the water flow leads from the receiving chamber (6) into the separation chamber (8)
Implementation Method 2
The conveying device (5) has a shaft (9) with at least one conveyor screw section (10) for conveying the heavy material fraction (2)
Implementation Method 3
the conveying device (5) has, in addition to the conveyor screw section (10), at least one washing section (12) having a plurality of separate paddles (11) arranged on the shaft (9)
Implementation Method 4
During operation of the density separation device, the receiving chamber (6) and the separation chamber (8) are at least partially filled with water, so that a hydraulic density separation process can be carried out to separate the heavy fraction from the feed material
Data Source
Figure 1
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Figure 5
AI summary
The invention relates to a hydraulic density separation device (1) for separating a heavy fraction (2) with higher density components from a light fraction (3) with lower density components from a feed material (4), comprising a conveying device (5) for conveying the heavy fraction (2), a water-fillable receiving chamber (6) for receiving the feed material (4), a flow generator (7) for generating a water flow in the receiving chamber (6) and a water-fillable separation chamber (8) for receiving the light fraction (3), wherein the conveying device (5) has a shaft (9) with at least one screw conveyor section (10) for conveying the heavy fraction (2) from the receiving chamber (6) and wherein the flow generator (7) is designed and arranged such that a flow path of the water flow leads from the receiving chamber (6) into the separation chamber (8).According to the invention, the conveying device (5) has, in addition to the screw conveyor section (10), at least one washing section (12) having a plurality of separate paddles (11) arranged on the shaft (9).