US 2018/0243943 A1

Mixer and mixing method

(22) 26.08.2015

(43) 30.08.2018

(57) A mixer has a circular housing defining a mixing area for mixing and kneading of a gypsum slurry. A rotary disc is positioned in the housing and rotated in a predetermined rotational direction. A rotary driving shaft cointegrally connected with the rotary disc and a plurality of scrapers are positioned in the mixing area. A slurry discharge port is provided on an annular wall of the housing for feeding the gypsum slurry of the mixing area onto a sheet of paper for gypsum board liner. An opening of the slurry discharge port is divided into a plurality of narrow openings, so that fluid resistance on the gypsum slurry flowing out of the mixing area is increased. An annular basal part rotates integrally with the rotary disc and an inner end portion of the scraper is fixed to the annular basal part.

(71) Yoshino Gypsum Co., Ltd., Tokyo (JP)

(73) Yoshino Gypsum Co., Ltd., Tokyo (JP)


Related articles:

Issue 5/2017 WO 2017/033302 A1

Mixer and mixing method

(22) 26.08.2015 (43) 02.03.2017 (57) The present invention makes it possible for gypsum slurry to be uniformly and sufficiently kneaded in a kneading area of a scraper type mixer. This mixer has a...

Issue 6/2022 US 2022/0184848 A1

Pretreatment mixing and stirring device, gypsum slurry manufacturing apparatus, building board manufacturing apparatus, pretreatment calcined gypsum manufacturing method, gypsum slurry manufacturing method, building board manufacturing method

(22) 14.04.2020 (43) 16.06.2022 (57) A pretreatment mixing and stirring device, arranged at a stage prior to a slurry formation mixing and stirring device which forms a gypsum slurry by kneading a...

Issue 12/2016 EP 3 085 506 A1

Mixer, mixing method, and method for producing lightweight gypsum board

(22) 17.11.2014 (43) 26.10.2016 (57) [Object] Behavior of a flow of foam or foaming agent ejected to a gypsum slurry can be stabilized, and a relatively large amount of foam or foaming agent can be...

Issue 5/2017 US 2017/0065950 A1

Slurry mixer gate having enhanced extractor ports

(22) 04.09.2015 (43) 09.03.2017 (57) A discharge gate is provided for delivering a mixed slurry from a gypsum slurry mixer, and includes a first extractor port configured for generating a first...

Issue 5/2021 WO2021100628 (A1)

Gypsum slurry dehydration system

(22) 13.11.2020 (43) 27.05.2021 (57) A gypsum slurry dehydration system for dehydrating gypsum slurry discharged from a flue gas desulfurization apparatus comprises: a conveying device having a...