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Title:
BLOWTORCH FOR USE IN LATERAL BLOWING OF SUBMERGED BURNING MOLTEN POOL METALLURGICAL FURNACE AND METALLURGICAL FURNACE HAVING BLOWTORCH
Document Type and Number:
WIPO Patent Application WO/2017/166975
Kind Code:
A1
Abstract:
A blowtorch (100) for use in lateral blowing of a submerged burning molten pool metallurgical furnace and the metallurgical furnace (1000) having the blowtorch. The blowtorch (100) comprises: an outer blow pipe (10), the outer blow pipe (10) being provided therein with an oxidizing gas inlet (11), an oxidizing gas outlet (12), and an insertion port (13); an insertion self-locking element (20) having a self-locking and closing function, the insertion self-locking element (20) being mounted at the insertion port (13) of the outer blow pipe; an inner blow pipe (30), the inner blow pipe (30) being provided with a medium inlet (31), a medium nozzle (32), and a medium clearing opening (33), the inner blow pipe (30) being detachably inserted on the insertion self-locking element (20), one extremity of the medium nozzle (32) on the inner blow pipe (30) being inserted into the outer blow pipe (10) via the insertion port (13), and the insertion self-locking element (20) self-locking and closing to block the insertion port (13) when the inner blow pipe (30) is detached from the insertion self-locking element (20); and a blocking element (40), the blocking element (40) being mounted on the inner blow pipe (30) to open or close the medium clearing opening (33). The blowtorch not only facilitates clearing of pulverized coal clogging the inner blow pipe (30), thus allowing the inner blow pipe (30) to be unclogged in a timely manner, but also obviates the need to lower the liquid level of a molten pool when the inner blow pipe is detached for maintenance and effectively ensures normal operation of the metallurgical furnace, thus increasing yield.

Inventors:
FENG, Shuangjie (No. 12 Fuxing Avenue, Haidian District, Beijing 8, 100038, CN)
LI, Dong (No. 12 Fuxing Avenue, Haidian District, Beijing 8, 100038, CN)
CUI, Dawei (No. 12 Fuxing Avenue, Haidian District, Beijing 8, 100038, CN)
ZHANG, Zhenmin (No. 12 Fuxing Avenue, Haidian District, Beijing 8, 100038, CN)
CAO, Kefei (No. 12 Fuxing Avenue, Haidian District, Beijing 8, 100038, CN)
LIN, Yi (No. 12 Fuxing Avenue, Haidian District, Beijing 8, 100038, CN)
CHEN, Xuegang (No. 12 Fuxing Avenue, Haidian District, Beijing 8, 100038, CN)
XU, Liang (No. 12 Fuxing Avenue, Haidian District, Beijing 8, 100038, CN)
Application Number:
CN2017/075502
Publication Date:
October 05, 2017
Filing Date:
March 02, 2017
Export Citation:
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Assignee:
CHINA ENFI ENGINEERING CORPORATION (No. 12 Fuxing Avenue, Haidian District, Beijing 8, 100038, CN)
International Classes:
F27D3/18
Foreign References:
CN105737614A2016-07-06
CN205642013U2016-10-12
CN201561656U2010-08-25
CN203741387U2014-07-30
CN204261366U2015-04-15
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (Room 301 Trade Building, Zhaolanyuan Tsinghua University, Qinghuayuan,Haidian District, Beijing 4, 100084, CN)
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