Title:
ROTARY KILN
Document Type and Number:
WIPO Patent Application WO/2022/097974
Kind Code:
A1
Abstract:
A rotary kiln of the present invention comprises: a calcining device including a cylindrical rotating tube which mixes input powdered raw materials while rotating in a horizontal direction; an external heating device for heating the powdered raw materials input to the rotating tube, by heating the outside of the rotating tube; and an internal heating device for simultaneously heating and stirring the powdered raw materials input to the rotating tube, wherein the internal heating device comprises: a microwave generating unit for generating microwaves; a guide unit for guiding the microwaves generated by the microwave generating unit into the rotating tube; and a stirring heating unit which is coupled to the inner circumferential surface of the rotating tube, and stirs the powdered raw materials input to the rotating tube, and at the same time, heats the powdered raw materials while generating heat when the microwaves are absorbed.
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Inventors:
YOON JONG SEOL (KR)
NHO JUN SEOK (KR)
RYOO CHANG SEOK (KR)
KIM DONG HWAN (KR)
SEONG EUN KYU (KR)
OH MYOUNG HWAN (KR)
KO YOUNG MIN (KR)
NHO JUN SEOK (KR)
RYOO CHANG SEOK (KR)
KIM DONG HWAN (KR)
SEONG EUN KYU (KR)
OH MYOUNG HWAN (KR)
KO YOUNG MIN (KR)
Application Number:
PCT/KR2021/014953
Publication Date:
May 12, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
F27B7/08; F27B7/10; F27B7/16; F27D99/00
Foreign References:
| JP2005331158A | 2005-12-02 | |||
| JP2013119995A | 2013-06-17 | |||
| US20130200071A1 | 2013-08-08 | |||
| JP2016080270A | 2016-05-16 | |||
| KR101112759B1 | 2012-03-13 |
Other References:
See also references of EP 4212809A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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