APPARATUS AND METHOD FOR TREATING GYPSUM

Title:

APPARATUS AND METHOD FOR TREATING GYPSUM

Document Type and Number:

WIPO Patent Application WO/2018/030077

Kind Code:

A1

Abstract:

[Problem] With respect to a fluidized bed type apparatus and method for treating gypsum, the purpose of the invention is to enhance or improve fluidity of gypsum powder and promote the effects of treatment of gypsum such as reforming or homogenization of the gypsum powder. [Solution] This gypsum treatment apparatus (1) includes a reactor (2), a conditioned air supply port (6), a horizontal partition wall (5) that causes conditioned air flow (Af) to flow upward into a reaction area (α), and a plurality of fixed blades (10) that are arranged at angular intervals in the peripheral direction of the reaction area. A fluidized bed (M) of calcined gypsum (Gb) is formed inside the reactor. The fixed blades deflect conditioned air flow (Ag) flown upward into the reaction area radially outward and in the peripheral direction of the reaction area. The calcined gypsum (Gb) flows by saltation or moves by saltation inside the reactor due to the conditioned air flow.

Inventors:

NITOH KOUJI (JP)
TAKENAKA TAKESHI (JP)
YOSHIDA MASARU (JP)

Application Number:

PCT/JP2017/025828

Publication Date:

February 15, 2018

Filing Date:

July 14, 2017

Export Citation:

Click for automatic bibliography generation Help

Assignee:

YOSHINO GYPSUM CO (JP)

International Classes:

C04B11/036; B01J8/38; C04B11/00

Domestic Patent References:

WO2016136485A1

2016-09-01

Foreign References:

JP2005528310A	2005-09-22
US4915623A	1990-04-10
US5013237A	1991-05-07
JP2571374B2	1997-01-16
JP2013535401A	2013-09-12
JP2015035905A	2015-02-19
JP2016054065W	2016-02-12

Other References: