Segmented Washing Pipe for Screw Press Screen Maintenance
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Solution Overview
Problem
The existing outer cylinder screen washing apparatus in screw presses faces issues with clogged washing nozzles due to filtration liquid and dust, requiring frequent disassembly and washing, which is time-consuming and costly, necessitating a solution for easy nozzle dismounting without disassembling the entire screw press.
Innovation Solution
An outer cylinder screen washing apparatus with a washing guide and a swingable washing pipe that allows nozzles to be easily swung from a discharge position to a separation position, facilitated by a hinge and a movable guide system, enabling nozzle dismounting without disassembling the screw press, reducing maintenance time and effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If washing nozzles are mounted on an annular washing pipe, then the outer cylinder screen can be washed effectively, but the washing nozzles become difficult to dismount and clean
Solution Approach 1:
The washing pipe is divided into multiple detachable sections connected by coupling members. Each section can be independently separated, allowing washing nozzles to be accessed and cleaned without disassembling the entire annular structure. The coupling members feature internal threads that engage with external threads, enabling easy connection and disconnection of pipe sections.
2Area of stationary object
If the washing pipe is annular and large in size, then it can cover the entire outer cylinder screen, but dismounting and cleaning requires taking apart major components
Solution Approach 1:
The large annular washing pipe is segmented into multiple smaller sections that can be independently handled. This allows maintenance personnel to work on one section at a time, significantly reducing the time required to access and clean washing nozzles compared to disassembling an entire large annular structure.
Solution Approach 2:
The washing pipe sections can be extracted from the screw press assembly by loosening coupling members. This extraction capability allows complete removal of washing pipe sections for thorough cleaning without requiring disassembly of the outer cylinder screen or screw shaft, dramatically reducing maintenance time.
3Device complexity
If washing nozzles are fixed on the washing pipe, then the structure is simple, but periodic cleaning requires complex disassembly operations
Solution Approach 1:
The washing pipe is segmented into detachable sections with coupling members, maintaining relative structural simplicity while enabling easy maintenance. The coupling members use straightforward threaded connections that can be assembled and disassembled with basic tools, preserving operational ease despite the segmented design.
Solution Approach 2:
The washing pipe transitions from a fixed, static structure to a dynamic, reconfigurable structure. The coupling members allow the pipe sections to be dynamically connected during operation and easily disconnected during maintenance, providing adaptability between operational and maintenance states without complicating the overall design.
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 allows for efficient and cost-effective maintenance by enabling easy dismounting and cleaning of nozzles without disassembling the screw press, reducing workdays and expenses, while ensuring thorough washing of the outer cylinder screen.
Implementation Method 1
the washing pipe swing supporter configured to support the washing guide to allow the washing pipe to swing between a discharge position and a separation position
Data Source
AI summary
A washing pipe is mounted on a washing guide provided on an outer side of an outer cylinder screen of the screw press and includes a washing pipe body and washing nozzles provided in the washing pipe body and configured to discharge washing liquid flowing from an inside of the washing pipe body toward the outer cylinder screen. A washing pipe swing supporter is configured to support the washing guide to allow the washing pipe to swing between a discharge position and a separation position. The discharge position is a position where the washing pipe is mounted on the washing guide and the washing liquid is discharged from the washing nozzles toward the outer cylinder screen. The separation position is a position where the washing nozzles are farther away from the outer cylinder screen than in a state where the washing pipe is positioned at the discharge position.