Screw Press Separator Integrated with Rotating Drum for Manure Treatment
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Solution Overview
Problem
Current methods for treating liquid manure and sludge are inefficient in terms of energy usage and require significant space, and there is a need for a simple design that can sanitize fibrous solids for use as bedding or in producing molded fiber parts.
Innovation Solution
A device comprising a press screw separator and a rotatably driven drum where the press screw separator is directly attached to the entry end wall of the drum, allowing solids to be conveyed into the drum without additional conveying devices, utilizing aerobic microbiological heating and optional external heating to sanitize the solids, and featuring a compact design suitable for a standard container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional conveying devices are used to transport solids from the screw press separator to the drum, then the solids can be conveyed into the drum, but the device complexity and installation space increase
Solution Approach 1:
The screw press separator is directly integrated with the drum by mounting it on the feed end wall, eliminating the need for separate conveying devices. The solids are conveyed directly from the separator into the drum through this integrated configuration, simplifying the overall device structure while maintaining operational effectiveness.
2Area of stationary object
If a compact design is implemented to reduce installation space, then the device can fit in standard containers, but the separation and sanitization efficiency may be compromised
Solution Approach 1:
The screw press separator and drum are merged into a single integrated unit, with the separator mounted directly on the drum's feed end wall. This compact integration allows the entire system to fit within standard 20 or 40-foot shipping containers while maintaining full separation and sanitization functionality through the direct solids conveyance path.
Solution Approach 2:
The screw press separator is positioned such that its discharge end projects into the drum interior, creating a nested configuration where the separator is effectively embedded within the drum structure. This nesting approach maximizes space utilization while ensuring efficient solids transfer without requiring additional external conveying equipment.
3Device complexity
If the screw press separator is directly mounted on the drum, then the device complexity is reduced, but the solids must be conveyed without additional conveying devices
Solution Approach 1:
The screw press separator and drum are merged into a single integrated unit, with the separator mounted directly on the drum's feed end wall. The solids are conveyed directly from the separator into the drum through this integrated configuration, simplifying the overall device structure while maintaining operational effectiveness.
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 enables energy-efficient treatment of liquid manure and sludge, reducing installation space while allowing for efficient separation and sanitization of solids, which can be used as bedding or for producing molded fiber parts, with the ability to be easily transported and maintained.
Implementation Method 1
a screw press separator (2) for separating solids from the slurry
Implementation Method 2
separating solids from the slurry
Implementation Method 3
The solid material is heated, thereby sanitizing it. This heating is achieved at least partially through aerobic microbiological heating
Implementation Method 4
the solid material is conveyed in the drum by the force generated by the screw press separator
Implementation Method 5
a rotatably driven drum (3)... the drum rotates while solid material is fed into and discharged from the drum
Implementation Method 6
hot air is blown into the drum for this purpose
Implementation Method 7
the solid material can be conveyed into the drum by the force generated by the screw press separator. This force is generated, in particular, by the rotating screw
Data Source
Figure 1
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AI summary
The invention relates to a device (1) for treating slurry, in particular liquid manure, comprising a screw press separator (2) for separating solids from the slurry, a rotatably driven drum (3) for microbiological heating of the solids in the drum (3), and a discharge device (10) on the drum (3) for discharging the solids, wherein the screw press separator (2) is attached directly to an inlet end wall (5) of the drum (3), preferably flanged, so that the solids can be conveyed directly from the screw press separator (2) into the drum (3).