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Our country converter splashs broken bits to protect heat technique current situ
From;    Author:Stand originally

Converter splashs broken bits to protect furnace technology and answer blowing steel technology, label two of contemporary steel-making craft great new technologies. Worker of our country metallurgy draws lessons from foreign converter to splash broken bits to protect the technical thought of furnace, developed quickly agree with all sorts of converter of Chinese national condition splash broken bits to protect furnace technology, extensive promotion is used, obtain enormous economic benefits. In 8 years when our country uses converter to splash broken bits to protect furnace technology, furnace life produced qualitative leap, compare with the photograph before using the technology that splash broken bits, our country turns furnace life raised 5-10 times, converter furnace life already was not the bottleneck that restricts converter productivity development. At present average furnace life already was close to our country converter 10 thousand furnace, highest furnace life already was amounted to 2. 670 thousand furnace (Wu Gang) , at the same time our country is reached in converter of small-sized converter, half steel smelt answer play converter field splash broken bits to protect furnace technology, walk along alive bound front row, form the patent technology that has Chinese distinguishing feature.

Our country converter splashs broken bits to protect heat technique current situation and characteristic

Converter of 1 our country splashs broken bits to protect heat technique current situation

Small converter furnace life is 1000-2000 furnace only in the our country before splashing broken bits, medium-sized converter furnace life is 3000-4000 furnace only. Converter furnace life is low already became restrict our country converter to develop ability, reduce cost " bottleneck " . Come to our country 8 years combine national condition development is following splash broken bits to protect furnace technology:

(1) has peak of pressure boost, attune and the nitrogen that prevent leak function to supply, detect reach detect control equipment;
(2) is applicable the shift of slag of tall TFe, high temperature is simple, revise qualitative data;
(3) is applicable the shift of slag of tall TFe, high temperature is simple, change qualitative technology;
(4) splashs what gush of broken bits nitrogen blows craft and gun of the oxygen that splash broken bits to safeguard a technology;    
(5) combines the actor of the technology that splash broken bits to use, reduce steel-making terminus temperature and the technology that improve terminal carbon content to optimize.

Converter of smelt of 2 half steel splashs broken bits to protect furnace technology

(Half steel of 1) the characteristic of smelt

Craft of half steel smelt is in converter our country Pan Gang, bear the steelworks such as steel is used. Via extracting the molten iron after vanadium (half steel) have the following characteristic:

- molten iron contains carbon low, be less than commonly 3. 5 % , cause inadequacy of steel-making quantity of heat;
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