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Recent Patents on the Triboelectrostatic Separation of Fly Ash
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Background:
The fly ash produced by coal-fired power plants is an industrial waste. The
environmental pollution problems caused by fly ash have been widely of public environmental concern.
As a waste of recoverable resources, it can be used in the field of building materials, agricultural
fertilizers, environmental materials, new materials, etc. Unburned carbon content in fly ash has
an influence on the performance of resource reuse products. Therefore, it is the key to remove unburned
carbon from fly ash. As a physical method, triboelectrostatic separation technology has been
widely used because of obvious advantages, such as high-efficiency, simple process, high reliability,
without water resources consumption and secondary pollution.
Objective:
The related patents of fly ash triboelectrostatic separation had been reviewed. The structural
characteristics and working principle of these patents are analyzed in detail. The results can
provide some meaningful references for the improvement of separation efficiency and optimal design.
Methods:
Based on the comparative analysis for the latest patents related to fly ash triboelectrostatic
separation, the future development is presented.
Results:
The patents focused on the charging efficiency and separation efficiency. Studies show that
remarkable improvements have been achieved for the fly ash triboelectrostatic separation. Some
patents have been used in industrial production.
Conclusion:
According to the current technology status, the researches related to process optimization
and anti-interference ability will be beneficial to overcome the influence of operating conditions
and complex environment, and meet system security requirements. The intelligent control can not
only ensure the process continuity and stability, but also realize the efficient operation and management
automatically. Meanwhile, the researchers should pay more attention to the resource utilization
of fly ash processed by triboelectrostatic separation.
Bentham Science Publishers Ltd.
Title: Recent Patents on the Triboelectrostatic Separation of Fly Ash
Description:
Background:
The fly ash produced by coal-fired power plants is an industrial waste.
The
environmental pollution problems caused by fly ash have been widely of public environmental concern.
As a waste of recoverable resources, it can be used in the field of building materials, agricultural
fertilizers, environmental materials, new materials, etc.
Unburned carbon content in fly ash has
an influence on the performance of resource reuse products.
Therefore, it is the key to remove unburned
carbon from fly ash.
As a physical method, triboelectrostatic separation technology has been
widely used because of obvious advantages, such as high-efficiency, simple process, high reliability,
without water resources consumption and secondary pollution.
Objective:
The related patents of fly ash triboelectrostatic separation had been reviewed.
The structural
characteristics and working principle of these patents are analyzed in detail.
The results can
provide some meaningful references for the improvement of separation efficiency and optimal design.
Methods:
Based on the comparative analysis for the latest patents related to fly ash triboelectrostatic
separation, the future development is presented.
Results:
The patents focused on the charging efficiency and separation efficiency.
Studies show that
remarkable improvements have been achieved for the fly ash triboelectrostatic separation.
Some
patents have been used in industrial production.
Conclusion:
According to the current technology status, the researches related to process optimization
and anti-interference ability will be beneficial to overcome the influence of operating conditions
and complex environment, and meet system security requirements.
The intelligent control can not
only ensure the process continuity and stability, but also realize the efficient operation and management
automatically.
Meanwhile, the researchers should pay more attention to the resource utilization
of fly ash processed by triboelectrostatic separation.
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