Rotating Drum Oil Separation for Automated Kitchen Wastewater Treatment
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Solution Overview
Problem
Existing kitchen wastewater treatment devices fail to efficiently separate vegetable oil and fat oil, leading to suboptimal purification and resource waste, and lack intelligent detection and automation, resulting in cumbersome operations.
Innovation Solution
An intelligent wastewater treatment device with a rotating drum, oil scraping and conveying assemblies, and a separation system, combined with an intelligent control system, separates oils and monitors oil content for real-time processing and reuse, enhancing automation and treatment efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional biological treatment methods are used, then the treatment process is simple, but the system cannot consistently ensure compliance with discharge standards under poor water quality conditions
Solution Approach 1:
The treatment process is divided into multiple independent stages: pre-treatment (screening, flotation), biological treatment, and post-treatment (disinfection, filtration). Each stage targets specific pollutants and can operate independently, ensuring reliable compliance even when overall system complexity increases.
Solution Approach 2:
The system dynamically adjusts operational parameters such as aeration rate, return activated sludge flow rate, and chemical dosing based on real-time water quality monitoring. This allows the treatment process to adapt to varying influent conditions and maintain consistent effluent quality meeting discharge standards.
2Productivity
If manual collection methods are used, then the device structure is simple, but the operation is cumbersome and efficiency is low
Solution Approach 1:
The system incorporates automatic sludge scraping mechanisms, programmable control sequences, and self-cleaning functions that reduce manual intervention. The automated operation increases collection efficiency while maintaining ease of operation through centralized control panels and remote monitoring capabilities.
3Reliability
If filter screens are used for solid-liquid separation, then the device structure is simple, but frequent clogging causes filter system failures
Solution Approach 1:
A pre-screening stage with coarse screening is introduced before the main filter system to remove large solids and reduce the load on subsequent filtration stages. This intermediary step prevents frequent clogging of the main filters while maintaining a relatively simple overall device structure.
Solution Approach 2:
The filter system incorporates automatic backwashing capabilities and adjustable filtration parameters that adapt to varying solid loads. This dynamic operation maintains filter reliability by preventing clogging through periodic cleaning and parameter adjustment without requiring complex manual intervention.
4Loss of substance
If oil scraping is performed without separation, then the process is simple, but vegetable oil and fat oil cannot be efficiently separated for reuse
Solution Approach 1:
The oil separation system uses differential properties of vegetable oil and fat oil (such as density, melting point, and solubility) to separate them in different stages. Vegetable oil is separated in the flotation tank while fat oil is removed in the cooling section, achieving resource recovery without requiring overly complex separation equipment.
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 effectively separates vegetable oil and fat oil, reduces resource waste by reprocessing them into secondary products, and achieves fully automated wastewater treatment with real-time monitoring and compliance with discharge standards.
Implementation Method 1
a top of the drum is provided with a refrigeration member, the refrigeration member comprises an arc-shaped plate and a plurality of cooling tubes fixed to an inner surface of a top of the arc-shaped plate, the drum is movably arranged at a bottom of the arc-shaped plate, and a drum body at the top of the drum is cooled by the refrigeration member
Implementation Method 2
the scraped mixed oil is discharged from the drum via the oil conveying assembly... the mixed oil entering the refrigeration tank is separated by the separation portion
Data Source
AI summary
Disclosed herein is an intelligent wastewater purification and treatment device. The device comprises a drum, a plurality of protrusions arranged in an array are fixed to an inner surface of the drum, an oil scraping assembly is arranged in the drum, mixed oil adhering to the inner surface of the drum is scraped away by the oil scraping assembly, a bottom of the oil scraping assembly is provided with an oil conveying assembly, and the scraped mixed oil is discharged from the drum via the oil conveying assembly. One side of the oil conveying assembly is provided with a separation assembly, the separation assembly comprises a refrigeration tank and a separation portion, an oil outlet of the oil conveying assembly is fixedly communicated with the refrigeration tank via a discharge pipe, and the mixed oil entering the refrigeration tank is separated by the separation portion.