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Title:
PRE-DECHLORINATION-SINTERING TREATMENT PROCESS FOR HIGH-CHLORINE METALLURGICAL WASTE AND INCINERATION FLY ASH
Document Type and Number:
WIPO Patent Application WO/2021/031814
Kind Code:
A1
Abstract:
A pre-dechlorination-sintering treatment process for high-chlorine metallurgical waste and incineration fly ash. Said process comprises: mixing high-chlorine metallurgical dust and sludge, waste incineration fly ash with carbon fuel uniformly, balancing water using chlorine-containing wastewater, and pressing same into agglomerates; placing the obtained agglomerates in an oxygen-deficient atmosphere, and performing roasting pretreatment to obtain roasted blocks; and allowing the roasted blocks to participate in sintering as a primer for iron ore sintering. Said process reduces the pollution of chlorine and dioxins during sintering of solid waste by means of roasting pretreatment, realizes the resource utilization of Fe, Ca, C and other components in solid wastes such as high-chlorine metallurgical dust and sludge and waste incineration fly ash, and realizes the reuse of chlorine-containing wastewater at the same time.

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Inventors:
FAN XIAOHUI (CN)
GAN MIN (CN)
JI ZHIYUN (CN)
WAGN GUOJING (CN)
YE HENGDI (CN)
WANG ZHAOCAI (CN)
ZHOU ZHIAN (CN)
CHEN XULING (CN)
HUANG XIAOXIAN (CN)
YUAN LISHUN (CN)
XIAO HENG (CN)
Application Number:
PCT/CN2020/105363
Publication Date:
February 25, 2021
Filing Date:
July 29, 2020
Export Citation:
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Assignee:
UNIV CENTRAL SOUTH (CN)
ZHONGYE CHANGTIAN INT ENGINEERING CO LTO (CN)
International Classes:
B09B3/00; B09B5/00
Foreign References:
CN106964637A2017-07-21
CN108950195A2018-12-07
CN105351941A2016-02-24
CN107413816A2017-12-01
CN110465538A2019-11-19
CN108070723A2018-05-25
GB2540888A2017-02-01
Attorney, Agent or Firm:
CHANGSHA RONG ZHI PATENT AGENCY et al. (CN)
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