Composite Ozone Flotation Device with Segmented Cylinders
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Solution Overview
Problem
Traditional ozone flotation devices face operational inefficiencies due to sludge deposition, wasted ozone, and inconvenient design, which affects organic matter and suspended substance removal, and requires improved manufacturing and installation processes.
Innovation Solution
A composite ozone flotation integrated device with a three-layer structure (center cylinder, intermediate cylinder, and container wall) for partition ozonation, flotation separation, and automatic slag discharge, featuring tangential water inlet, ozone oxidation, and automatic sludge precipitation systems, enhancing installation simplicity and operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional ozone flotation equipment uses multiple pipelines and various functions in a single tank body, then the equipment can perform ozonation, coagulation and flotation, but the shape of the equipment limits operational convenience and the height becomes unreasonable for manufacturing and installation
Solution Approach 1:
The tank body is divided into three distinct layers: upper layer for ozonation, middle layer for coagulation and flotation, and lower layer for sludge precipitation. Each layer has independent functions and separate inlet/outlet pipelines, which simplifies operation and improves accessibility compared to a single integrated tank design.
Solution Approach 2:
The equipment transitions from a single-vertical-tank configuration to a multi-layer horizontal arrangement. By distributing functions across different vertical layers and using radial pipelines, the design reduces the overall height while maintaining all necessary functions, making it more suitable for manufacturing and installation.
2Productivity
If the tank body height is increased to ensure air floatation effect, then flotation separation efficiency improves, but manufacturing and installation become more difficult
Solution Approach 1:
The flotation process is segmented into multiple stages across different layers: coagulation in the middle layer, flotation in the upper layer, and sludge precipitation in the lower layer. This segmentation allows each layer to be optimized independently and reduces the overall height requirement compared to a single tall flotation tank.
Solution Approach 2:
The three functional layers are nested within a single cylindrical tank body, with the upper layer containing ozonation and flotation functions, the middle layer containing coagulation, and the lower layer containing sludge precipitation. This nested arrangement maintains compact dimensions while providing all necessary functions.
3Productivity
If dissolved gas is used to carry flocculated sludge to the top for discharge, then flotation separation occurs, but scums deposit on the bottom during intermittent operation and water flow disturbance, reducing removal efficiency
Solution Approach 1:
The tank is segmented into three functional zones with separate pipelines: the upper layer for ozonation and flotation, the middle layer for coagulation, and the lower layer for sludge precipitation and discharge. This segmentation prevents scum from mixing with fresh water and ensures dedicated discharge paths, maintaining reliable operation during intermittent cycles.
Solution Approach 2:
The sludge discharge function is extracted from the main flotation process and dedicated to the lower layer with separate inlet and outlet pipelines. This dedicated discharge system prevents scum accumulation at the bottom by providing a separate pathway for sludge removal, ensuring continuous effective operation.
4Power
If ozone is generated by ozone generators, then oxidation function is provided, but most of the ozone is wasted
Solution Approach 1:
The ozonation layer is designed with continuous ozone injection and continuous water flow through the tank. The radial pipelines distribute ozone continuously throughout the upper layer, ensuring complete oxidation of organic matters and preventing ozone waste by maintaining constant contact between ozone and wastewater.
Solution Approach 2:
The upper layer serves multiple functions: ozonation, oxidation of organic matters, and preparation for flotation. By integrating these functions into a single layer with radial pipelines, the system maximizes ozone utilization efficiency while providing comprehensive treatment.
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 device achieves quick installation, simple operation, and high processing efficiency by optimizing ozone utilization, improving sludge management, and ensuring effective separation and oxidation of organic matter, while minimizing ozone waste.
Implementation Method 1
Ozone is a reactive molecule having strong oxidability. It has a potential oxidation-reduction of 2.07V, which is second only to fluorine.
Implementation Method 2
after the coagulation and flotation reaction in the tank body, most of the flocculated sludge generated may be carried by the dissolved gas to the top of a slag discharge port
Implementation Method 3
An annular aeration pipe 5 having an aeration inner wire head 18 may be provided at a lower position between the cylinder body 6 and the intermediate cylinder 7.
Implementation Method 4
Air floatation may efficiently separate suspended substances in water and may enable simple operation and low operating costs. An ozone floatation technology may be created upon the combination and synergistic utilization of ozone oxidation characteristics and flotation separation characteristics.
Data Source
AI summary
A composite ozone flotation integrated device may include a cylinder body, an intermediate cylinder, and a central cylinder which are coaxial. The cylinder body and the center cylinder have a common bottom. The cylinder body and the intermediate cylinder have a common top. The intermediate cylinder is arranged on support channel steel between the cylinder body and the center cylinder. A top of the center cylinder is in the intermediate cylinder. The top of the center cylinder is open-mouthed. An upper part of the cylinder body is provided with a drainpipe. The top of the cylinder body is provided with an inner cylinder exhaust pipe and a slag discharge pipe. An upper part of the intermediate cylinder is provided with an outer cylinder exhaust pipe. A lower part of the center cylinder is connected to a water inlet pipe, a dissolved gas inlet pipe, and a venting and sludge-discharge pipe.