Dryer Screen Drain Separation Head to Prevent Wastewater Blockage
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Solution Overview
Problem
Existing drainage systems for cleaning heads in paper production plants suffer from blockages due to dirt particles and wastewater depositing on walls, requiring manual cleaning and disrupting the drainage process.
Innovation Solution
A drainage device with an air-water separation container connected to the cleaning head, allowing for air and wastewater separation close to the cleaning head, and a tubular body with propellant inlets to accelerate and transport the mixture, preventing desiccation and ensuring continuous, efficient drainage regardless of the cleaning head's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid collection container is used to carry dirt particles and wastewater from the cleaning head, then the drainage function is provided, but dirt particles and wastewater deposit on the walls causing blockages requiring manual cleaning
Solution Approach 1:
The invention transitions from a rigid collection container to a flexible hose that can be dynamically positioned and moved. The flexible hose allows the drainage system to adapt to different positions and movements of the cleaning head, preventing wastewater from stagnating and depositing on fixed wall surfaces, thereby eliminating the need for manual cleaning while maintaining reliable drainage function.
2Adaptability or versatility
If the cleaning head is movable transversely to the dryer screen, then cleaning coverage is improved, but the drainage system becomes complex requiring connection between movable and stationary parts
Solution Approach 1:
The invention uses a flexible hose instead of rigid piping to connect the movable cleaning head to the stationary drainage system. The flexible hose can accommodate the transverse movement of the cleaning head without requiring complex joints, seals, or mechanical couplings, thereby maintaining cleaning head versatility while significantly reducing drainage system complexity.
3Reliability
If wastewater is transported over a longer path from the cleaning head, then more comprehensive drainage is achieved, but desiccation and coating occur on the walls
Solution Approach 1:
The invention replaces the mechanical drainage system with fixed walls and gravity-based flow with a flexible hose system that allows controlled movement and positioning. This enables the drainage path to be optimized dynamically, ensuring wastewater flows continuously without stagnating in dead zones where desiccation and coating would occur, while still achieving comprehensive drainage coverage.
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 system effectively separates air from wastewater, preventing desiccation and coating, and ensures continuous, high-quality drainage with minimal heating of wastewater, reducing the need for manual cleaning and maintaining efficiency during paper production.
Implementation Method 1
an air-water separation container (20) which comprises an air outlet (27) and a wastewater outlet (26)
Implementation Method 2
a tubular body with propellant inlets to accelerate and transport the mixture
Data Source
AI summary
A drainage device for removing dirt particles and wastewater from a cleaning head for cleaning a dryer screen of a paper production plant includes an air-water separation container. The air-water separation container includes an air outlet, a wastewater outlet and an inlet opening for receiving the dirt particles and the wastewater from the cleaning head. The air-water separation container is connected to the cleaning head so as to be movable transversely relative to the dryer screen together with the cleaning head.