Title:
METHOD OF RECYCLING AND REUSING WASTE MAGNESIA-CARBON BRICK
Document Type and Number:
WIPO Patent Application WO/2012/062194
Kind Code:
A1
Abstract:
A method of recycling and reusing waste magnesia-carbon brick, comprising the following steps: ① Pulverizing the waste magnesia-carbon brick to obtain powdered-ore. ② Pouring the powdered-ore into an agitation trough, adding water, and then agitating to obtain ore slurry. ③ Roughing, then sending the resulting froth through a conduit to be subjected to a first cleaning process, and then subjecting the ore slurry to a first scavenging process. ④ Performing the first cleaning process: using a mechanical agitation floatation machine to carry out cleaning, and then subjecting the floatation-produced froth to a second cleaning process. ⑤ Performing the second cleaning process: using two air-suction/ore slurry-suction dual-function mechanical agitation flotation machines to carry out cleaning. ⑥ Subjecting the ore slurry resulting from roughing in step ③ to a first scavenging process, and then subjecting the flotated ore slurry to a second scavenging process. ⑦ Performing the second scavenging process, and then subjecting the flotated ore slurry to a third scavenging process. ⑧ Performing the third scavenging process, and then subjecting the flotated ore slurry to a fourth scavenging process. ⑨ Performing the fourth scavenging process, and then concentrating, pressure-filtering, dehydrating and drying the flotated ore slurry to obtain magnesite. After having been subjected to the processes in the present method, waste magnesia-carbon bricks can be reused, allowing for the recycling and reuse of materials and a reduction in production costs.
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Inventors:
FENG JIE (CN)
WANG MINGYIN (CN)
XIAO GAN (CN)
WANG WENJIE (CN)
YUAN GUANGGUO (CN)
CHEN XUEYUN (CN)
LI YI (CN)
WANG MINGYIN (CN)
XIAO GAN (CN)
WANG WENJIE (CN)
YUAN GUANGGUO (CN)
CHEN XUEYUN (CN)
LI YI (CN)
Application Number:
PCT/CN2011/081888
Publication Date:
May 18, 2012
Filing Date:
November 08, 2011
Export Citation:
Assignee:
SHANDONG QIANSHUN MINING AND METALLURG SCIENCE CO LTD (CN)
FENG JIE (CN)
WANG MINGYIN (CN)
XIAO GAN (CN)
WANG WENJIE (CN)
YUAN GUANGGUO (CN)
CHEN XUEYUN (CN)
LI YI (CN)
FENG JIE (CN)
WANG MINGYIN (CN)
XIAO GAN (CN)
WANG WENJIE (CN)
YUAN GUANGGUO (CN)
CHEN XUEYUN (CN)
LI YI (CN)
International Classes:
B03D1/00; B03B1/00; B03B1/04; B09B3/00
Foreign References:
| CN102069036A | 2011-05-25 | |||
| CN1772681A | 2006-05-17 | |||
| CN101880169A | 2010-11-10 | |||
| JPH08319154A | 1996-12-03 |
Attorney, Agent or Firm:
SHANDONG JINAN QILU SCIENCE PATENT OFFICE LTD (CN)
山东济南齐鲁科技专利事务所有限公司 (CN)
山东济南齐鲁科技专利事务所有限公司 (CN)
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Claims: