Solid-Liquid Separator With Lifted Segmented Screws
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Solution Overview
Problem
Conventional solid-liquid separators face difficulties in replacing movable plates due to wear and tear, making the process time-consuming and challenging, especially when dealing with materials that easily lose flowability and tend to clog the system.
Innovation Solution
A solid-liquid separator design featuring movable plates with recess sections that allow screws to lift up, enabling easy replacement, combined with a configuration where screws overlap and rotate to transport materials effectively, preventing clogging and facilitating the movement of plates to maintain flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If conventional solid-liquid separator uses fixed screw configuration, then separation function is maintained, but movable plate replacement becomes difficult and time-consuming
Solution Approach 1:
The screw is divided into modular sections that can be independently removed and repositioned. Each screw section can be detached from the movable plates, allowing easy replacement of worn plates without removing entire screw assemblies. This segmentation enables maintenance personnel to quickly swap movable plates while retaining the screw structure.
Solution Approach 2:
The screw configuration transitions from a fixed structure to a dynamic, repositionable system. The screw sections can be moved along the axial direction to different positions on the movable plates, allowing flexible adjustment during operation and maintenance. This dynamic positioning capability simplifies plate replacement while maintaining separation effectiveness.
2Reliability
If movable plates are used to prevent clogging, then flowability is maintained, but plates wear over time requiring replacement
Solution Approach 1:
The system enables easy discarding of worn movable plates and recovery of the screw structure. When plates wear out, they can be quickly removed and replaced without losing the screw components, which are retained and reused. This approach extends the overall system service life while maintaining continuous clogging prevention capability.
3Productivity
If screws extend through movable plates, then material transport is achieved, but plate replacement requires screw disassembly
Solution Approach 1:
The screw is segmented into removable sections that can be independently detached from movable plates. This allows the screw to maintain its material transport function during operation while enabling quick plate replacement by simply removing individual screw sections rather than disassembling the entire screw system.
Solution Approach 2:
The screw sections are pre-configured to be removable at specific locations on the movable plates. This preliminary design of removable connection points allows for rapid plate replacement without time-consuming disassembly operations, while the screws remain in place to continue transporting material efficiently.
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 design allows for effortless replacement of movable plates, prevents clogging, and ensures efficient separation of materials with reduced flowability, such as inorganic sludges and food residues, by using screws to push and rotate plates, maintaining continuous operation.
Implementation Method 1
two screws extending through holes formed in the movable plates... the object to be treated flowing in from the inlet opening... is transported by the rotation of the screw
Implementation Method 2
the recess sections of the movable plates are set to a size such that the movable plates are pushed to move by the blade sections of the two rotating screws
Data Source
AI summary
To provide a solid-liquid separator in which a treatment object such as sludge can be transported without clogging, liquid can be efficiently separated from the treatment object, and a maintenance operation can be easily conducted. Movable plates 12 and fixed plates 13 are disposed alternately, two screws 21, 22 are disposed in recess sections 14, 15 formed in the movable plates 12 and fixed plates 13, parts of blade sections 25, 26 of the two screws 21, 22 overlap each other, the two screws 21, 22 are rotary driven, and the liquid is discharged from the gap between the movable plates 12 and fixed plates 13, while the treatment object is being transported. When the movable plates 12 are replaced, the two screws 21, 22 are lifted up and then the movable plates 12 are pulled up and replaced.