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Patent Searching and Data


Title:
CEMENT PRE-CALCINER KILN SYSTEM AND METHOD FOR PREPARING CEMENT CLINKER
Document Type and Number:
WIPO Patent Application WO/2021/026714
Kind Code:
A1
Abstract:
Disclosed are a cement pre-calciner kiln system and a method for preparing a cement clinker. A CO2 self-enrichment-type pre-calciner kiln, an offline-type pre-calciner kiln and a preheater kiln are integrated in the same system, and the system can be switched to the CO2 self-enrichment-type pre-calciner kiln, the offline-type pre-calciner kiln or the preheater kiln according to requirements. The system greatly decreases the investment and operating costs for capturing and purifying CO2 in flue gas and provides an efficient solution for achieving carbon emission reduction in the cement industry. In addition, the system does not require the redesigning of a rotary kiln (7) and a cooling machine (10), and greatly decreases the manufacturing costs. When the system is switched to the preheater kiln, the system can meet the requirements for online inspection and maintenance of a column of cyclone preheaters. Moreover, the system improves the problems in the prior art of the CO2 concentration in flue gas from the kiln being low and purification costs being high.

Inventors:
HE XIAOLONG (CN)
HU ZHIJUAN (CN)
PENG XUEPING (CN)
DAI ZHONGYUAN (CN)
CHEN CHANGHUA (CN)
Application Number:
CN2019/100164
Publication Date:
February 18, 2021
Filing Date:
August 12, 2019
Export Citation:
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Assignee:
TIANJIN CEMENT IND DESIGN & RES INST CO LTD (CN)
International Classes:
F27B19/04; C04B7/24
Foreign References:
CN101608866A2009-12-23
CN103304168A2013-09-18
CN103588399A2014-02-19
CN107758712A2018-03-06
KR20180016728A2018-02-19
JP2013133254A2013-07-08
Attorney, Agent or Firm:
BEIJING IPLING INTELLECTUAL PROPERTY LAW FIRM (CN)
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