METHOD OF REFORMING COAL ASH AND METHOD OF USING REFORMED COOL ASH

Title:

METHOD OF REFORMING COAL ASH AND METHOD OF USING REFORMED COOL ASH

Document Type and Number:

Japanese Patent JP3687869

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To burn and remove carbon contained in coal ash and at the same time to melt the carbon ash to make its granular shape a spherical shape by melt-spraying the coal ash, to improve its fluidity when it is used as a concrete admixture substituting for sand to efficiently use all coal ash generated and also to save resources.
SOLUTION: A thermal spraying device constituted of a thermal spraying burner, a lance, a utility control panel and a powder feeder and a furnace body for providing a space for performing thermal spraying are used. The thermal spraying device is installed in an opening of the furnace body so that flames formed by the thermal spraying burner 1 may be blown into the furnace body. Coal ash 2 is sprayed from the thermal spraying burner 1 together with carrier gas so that they may be passed through a thermal spraying flame 10.

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Inventors:

Kazuo Maeda
Hideo Ide
Akira Ishii

Application Number:

JP12630896A

Publication Date:

August 24, 2005

Filing Date:

April 24, 1996

Export Citation:

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Assignee:

Nippon Steel Corporation

International Classes:

C04B18/10; B09B3/00; (IPC1-7): B09B3/00; C04B18/10

Domestic Patent References:

JP6307622A
JP3156287A

Attorney, Agent or Firm:

Inoue Spring

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