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Patent Searching and Data


Title:
REHEATING-TYPE COAL DRYING APPARATUS USING LOW-PRESSURE SUPERHEATED STEAM
Document Type and Number:
WIPO Patent Application WO/2015/194844
Kind Code:
A1
Abstract:
A reheating-type coal drying apparatus using low-pressure superheated steam, according to the present invention, comprises: a combustor for generating steam by heating a water pipe provided in a combustion furnace by means of the combustion of coal supplied from a coal storage yard at which the coal used as the fuel of a thermoelectric power plant is stored; a superheater for superheating the steam, to be generated from a fluidized bed combustor, by exhaust gas discharged from the fluidized bed combustor so as to flow along an exhaust gas flow pipe; a coal dryer formed by including a first dryer to which the coal is supplied from the coal storage yard and the superheated steam is supplied from the superheater in order to firstly dry the coal, and a second dryer for secondarily drying the firstly dried coal transferred from the first dryer; and a reheater including a gas chamber to which the exhaust gas discharged from the superheater is supplied and an exhaust steam flow pipe provided in the gas chamber so as to allow exhaust steam discharged from the coal dryer to flow therethrough, generating reheated steam by reheating the exhaust steam by the exhaust gas, and supplying the reheated steam to the second dryer.

Inventors:
CHOI SUK HWAN (KR)
NAM HYUN SEOK (KR)
CHOI BI RYONG (KR)
KIM YONG BIN (KR)
KIM SUNG KON (KR)
Application Number:
PCT/KR2015/006121
Publication Date:
December 23, 2015
Filing Date:
June 17, 2015
Export Citation:
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Assignee:
KOREA SOUTH EAST POWER CO LTD (KR)
HANKOOK TECHNOLOGY INC (KR)
International Classes:
F26B21/02; C10B57/10; F26B3/084; F26B15/18
Foreign References:
KR101408148B12014-06-17
KR101261970B12013-05-08
KR100874347B12008-12-17
KR101278553B12013-07-05
Attorney, Agent or Firm:
CHO, HEE JE (KR)
조희제 (KR)
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