INCINERATED-ASH TREATMENT DEVICE AND TREATMENT METHOD

Title:

INCINERATED-ASH TREATMENT DEVICE AND TREATMENT METHOD

Document Type and Number:

WIPO Patent Application WO/2018/061545

Kind Code:

A1

Abstract:

[Problem] To efficiently recover, from incinerated ash, precious metals such as gold, silver and copper, and aluminum contained therein and to effectively utilize ash after recovering the precious metals and the like. [Solution] An incinerated-ash treatment device 1 is provided with: a crusher or/and a classifier that crushes, classifies, or performs both such that the maximum grain size of incinerated ash A1 becomes 5 mm or less; an overcurrent sorter 8 that separates the incinerated ash having a maximum grain size of 5 mm or less, which has been discharged from the crusher or/and the classifier, into conductors E and non-conductors I; and a specific gravity sorter that separates the conductors E discharged from the overcurrent sorter 8 into high-specific-gravity substances H2 and low-specific-gravity substances L2. An air table 10 can be employed as the specific gravity sorter. It is possible to provide a classifier that classifies crushed substances C and has a classification point of 5 mm or less, and to supply fine grains P that are discharged from the classifier and have grain sizes of 5 mm or less to the overcurrent sorter 8. The drum rotational speed of the overcurrent sorter 8 can be set to 4000 rpm or higher.

Inventors:

TAKIZAWA KOU (JP)
TAKEMOTO TOMONORI (JP)
HANADA TAKASHI (JP)
ISHIDA YASUYUKI (JP)

Application Number:

PCT/JP2017/030284

Publication Date:

April 05, 2018

Filing Date:

August 24, 2017

Export Citation:

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Assignee:

TAIHEIYO CEMENT CORP (JP)

International Classes:

B09B5/00; B03C1/24; B07B7/01; B07B9/00; C04B7/26; C04B7/28; C04B7/38; C04B7/42

Foreign References:

JP2016089196A	2016-05-23
JPS59123590U	1984-08-20
JP2013000685A	2013-01-07
JP2003320311A	2003-11-11

Other References: