Circular Rotary-Dehydrator With Multi-Filter Cylinder Unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current sludge dewatering technologies, such as multi-disc screw presses and belt presses, face inefficiencies including low dehydration rates, high energy consumption, and water usage, with traditional screw presses requiring larger diameters or multiple shafts to increase capacity, leading to poor dehydrating effects and increased energy consumption.
Innovation Solution
A circular rotary-disc dehydrator with a multi-filter cylinder unit, where a circular rotary disc with filter cylinders arranged around it allows continuous sludge feeding and discharge, featuring self-cleaning filter cylinders, a gear track system for continuous operation, and a closed structure with vacuum and pressure differences to enhance dehydration efficiency, reducing water consumption and maintaining high production levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the diameter and length of the screw shaft are increased to increase treatment capacity, then the treatment capacity is improved, but the dehydrating effect deteriorates and energy consumption increases
Solution Approach 1:
The patent divides the single large screw shaft into multiple smaller screw shafts arranged in parallel. Each screw shaft has its own drive motor and operates independently, allowing the system to handle larger treatment capacities while maintaining effective dehydration performance through multiple smaller extrusion zones rather than one large inefficient zone
Solution Approach 2:
The patent transitions from a single vertical screw shaft configuration to a horizontal arrangement of multiple screw shafts. This dimensional change allows parallel processing of sludge across multiple shafts, increasing overall capacity without compromising the dehydration effectiveness of individual shafts
2Productivity
If the number of screw shafts is increased to increase treatment capacity, then the treatment capacity is improved, but energy consumption increases
Solution Approach 1:
The system segments the total treatment capacity across multiple independent screw shafts, each driven by its own motor. This segmentation allows for optimized power distribution where each motor operates at efficient load levels, and idle shafts can be shut down during low-demand periods, reducing overall energy consumption compared to running one large motor at variable loads
3Duration of action of moving object
If the screw length is increased to guarantee dehydration time, then the dehydration time is improved, but the sludge volume in dehydrating chamber becomes large and dehydration efficiency decreases
Solution Approach 1:
The patent divides the dehydration process into multiple parallel zones, each with optimized screw length. Sludge is distributed across multiple shorter screw shafts simultaneously, providing adequate dehydration time in each zone while maintaining high overall throughput through parallel processing, avoiding the inefficiencies of a single long screw shaft
4Productivity
If traditional belt press is used to increase treatment capacity, then the treatment capacity is improved, but the equipment is easy to get blocked and requires large amount of water for cleaning
Solution Approach 1:
The screw press system incorporates self-cleaning capabilities where the rotating screw shafts automatically clear residue from the chamber walls and feeding zones through their rotational motion and extrusion action. The continuous rotational movement prevents material buildup that would cause blocking, and the design allows for minimal water consumption in cleaning operations compared to belt press systems
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 solution enables continuous operation with increased production and improved dehydration efficiency, reduced water usage, and convenient maintenance, while maintaining a compact structure that integrates flocculation, dehydration, and filtrate storage and discharge.
Implementation Method 1
there is only an extruding force at a sludge outlet
Implementation Method 2
filter cylinder units... in the rotation process, it may be fed continuously and sludge may be discharged continuously
Implementation Method 3
it is a positive pressure in the water inlet area and it is a negative pressure in the filtrate area, a pressure difference is produced between the inside and outside of the filter cylinder, and the flow of sewage inside the filter cylinder is accelerated
Data Source
AI summary
Disclosed is a circular rotary-disc dehydrator with a multi-filter cylinder unit. A dehydrator body is internally provided with a middle plate so that the dehydrator body is separated into a water entrance area and a filtrate area. One side, located in the filtrate area, of the middle plate is provided with a circular rotary disc, a circle of holes is arranged around the circular rotary disc, and one side of the circular rotary disc is provided with a filter cylinder corresponding to the holes; The circular rotary disc is arranged in the filtrate area, and a plurality of filter cylinder units are uniformly distributed on the rotary disc. In the rotation process, it may be fed continuously and sludge may be discharged continuously; the filter cylinders have a self-cleaning function, and consume less water, thus not only the production is increased, but also the dehydrating effect is guaranteed.