Hollow Drum Separator With Inverted Discharge Scraper
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Solution Overview
Problem
Conventional separation devices for mixed fabrics of different fluid ability often compact the product structure of separation goods, leading to reduced quality and efficiency in the separation process.
Innovation Solution
The device incorporates an abrasional area with multiple sections arranged at specific angles in the upper area of the hollow drum, allowing separation goods to fall under gravity and maintain a loose structure, preventing compaction and ensuring efficient removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional separation devices press material against the hollow drum, then separation of mixed materials occurs, but the product structure becomes compacted and quality deteriorates
Solution Approach 1:
The discharge device inverts the conventional approach by having the hollow drum rotate in the opposite direction to the press belt, creating a relative motion that prevents material compaction. The drum rotates counter to the pressing direction, causing separated material to be gently discharged rather than forced through, thus maintaining product structure while achieving separation.
Solution Approach 2:
The system employs dynamic motion control where the hollow drum and press belt rotate at different speeds and directions. The drum's rotational speed and direction are optimized to create a dynamic discharge mechanism that prevents compaction, allowing material to be separated and discharged in a controlled manner that preserves product quality.
2Quantity of substance
If material is pressed through the hollow drum perforations, then easier-flowing components are separated, but the product structure is compressed and loosening effect is lost
Solution Approach 1:
The discharge mechanism inverts the pressing action by rotating the hollow drum opposite to the press belt direction. This creates a reverse motion that loosens and disperses separated material as it exits the perforations, preventing compression and maintaining product structure integrity while achieving effective separation of easier-flowing components.
Solution Approach 2:
The differential rotation between the hollow drum and press belt creates a vibratory motion effect on the separated material. This mechanical vibration prevents material from settling and compacting, keeping it loose and dispersed during the discharge process, thus preserving product structure while maintaining separation throughput.
3Productivity
If the hollow drum rotates in the same direction as the press belt, then material is conveyed efficiently, but separation goods become compacted during discharge
Solution Approach 1:
The system inverts the conventional co-rotation approach by having the hollow drum rotate in the opposite direction to the press belt. This reverse rotation creates a shearing motion that prevents material compaction during discharge, while the controlled speed difference maintains efficient material conveyance through the separation zone.
Solution Approach 2:
The system employs dynamic speed and direction control where the hollow drum rotates opposite to the press belt at an optimized speed ratio. This creates a dynamic discharge mechanism that prevents compaction while maintaining conveyance efficiency, as the relative motion continuously loosens material during the separation and discharge process.
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 configuration preserves the product structure of separation goods, preventing compaction and ensuring a relaxed, granular structure, thereby improving the quality and efficiency of the separation process.
Implementation Method 1
rotating the hollow drum and/or the press belt to draw the product stream between the hollow drum and the press belt
Implementation Method 2
the more easily flowing components of the product stream are pressed by means of the press belt as material to be separated through the perforation
Implementation Method 3
the material to be separated, which has been pressed through the perforated outer surface M into the cavity H of the hollow drum 12, is stripped from the inner surface of the hollow drum in the upper region
Data Source
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AI summary
A device (10) for separating mixed substances of different flowability, comprising a frame (11), a hollow drum (12) driven in the direction of rotation (U) with a perforated outer surface (M) and at least one end face (Sv) that is at least partially open, an endless press belt that can be pressed against the outer surface of the hollow drum (12) from the outside while encircling a part of the circumference of the hollow drum (12), a product inlet wedge formed by the press belt and the hollow drum (12) for guiding a product flow consisting of material to be pressed between the hollow drum (12) and the press belt into the device (10), and a device (17) for removing the separated material pressed through the perforated outer surface (M) into the cavity (H) of the hollow drum (12) from the end face (Sv) of the hollow drum (12), wherein the device (17) for removing the separated material comprises a scraper element (23) located in the upper region of the hollow drum (12). in a positionwhich is arranged at least substantially in the twelve o'clock position and which has at least one scraper element section (231) which has an angle of inclination (a) greater than 90° to the tangential plane of the lateral surface opposite to the direction of rotation, enables particularly gentle separation of substances to be separated.