Method for quick reduction smelting of titaniferous furnace slag
The invention belongs to the field of titanium smelting, and particularly relates to a method for quick reduction smelting of titaniferous furnace slag. The technical problems that in an existing titaniferous furnace slag reduction method, the smelting warm-up time is long, the time spent in adding...
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| creator | WANG DONGSHENG ZHANG JIDONG YANG YANGJUN HUANG JIAXU ZHOU YUCHANG CHENG XIAOZHE ZHAO QINGE LI LIANG WANG TANGLIN |
| description | The invention belongs to the field of titanium smelting, and particularly relates to a method for quick reduction smelting of titaniferous furnace slag. The technical problems that in an existing titaniferous furnace slag reduction method, the smelting warm-up time is long, the time spent in adding reducing agents is long, the reducing agents and smelting slag are mixed unevenly, the smelting period is long, the transformation rate that titanic oxide is transformed into titanium carbide is low, and electric consumption is high are solved. According to the scheme for solving the technical problems, the method for quick reduction smelting of the titaniferous furnace slag comprises the following steps that a, a reducing agent and hot titaniferous furnace slag just discharged out of a furnace are mixed and then added into a reduction furnace together, and pre-reduction is carried out at the temperature of 1,500 DEG C-1,650 DEG C; b, after pre-reduction, temperature is raised to 1,600 DEG C-1,750 DEG C, the reducing agent is replenished, and high-temperature reduction smelting is further carried out; and c, after smelting is finished, heating is stopped, slag is discharged, and titanium carbide furnace slag is obtained. According to the method, in the whole process, heat losses are small, the reduction reaction is fast, time is short, and energy consumption is low. |
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The technical problems that in an existing titaniferous furnace slag reduction method, the smelting warm-up time is long, the time spent in adding reducing agents is long, the reducing agents and smelting slag are mixed unevenly, the smelting period is long, the transformation rate that titanic oxide is transformed into titanium carbide is low, and electric consumption is high are solved. According to the scheme for solving the technical problems, the method for quick reduction smelting of the titaniferous furnace slag comprises the following steps that a, a reducing agent and hot titaniferous furnace slag just discharged out of a furnace are mixed and then added into a reduction furnace together, and pre-reduction is carried out at the temperature of 1,500 DEG C-1,650 DEG C; b, after pre-reduction, temperature is raised to 1,600 DEG C-1,750 DEG C, the reducing agent is replenished, and high-temperature reduction smelting is further carried out; and c, after smelting is finished, heating is stopped, slag is discharged, and titanium carbide furnace slag is obtained. 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The technical problems that in an existing titaniferous furnace slag reduction method, the smelting warm-up time is long, the time spent in adding reducing agents is long, the reducing agents and smelting slag are mixed unevenly, the smelting period is long, the transformation rate that titanic oxide is transformed into titanium carbide is low, and electric consumption is high are solved. According to the scheme for solving the technical problems, the method for quick reduction smelting of the titaniferous furnace slag comprises the following steps that a, a reducing agent and hot titaniferous furnace slag just discharged out of a furnace are mixed and then added into a reduction furnace together, and pre-reduction is carried out at the temperature of 1,500 DEG C-1,650 DEG C; b, after pre-reduction, temperature is raised to 1,600 DEG C-1,750 DEG C, the reducing agent is replenished, and high-temperature reduction smelting is further carried out; and c, after smelting is finished, heating is stopped, slag is discharged, and titanium carbide furnace slag is obtained. 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The technical problems that in an existing titaniferous furnace slag reduction method, the smelting warm-up time is long, the time spent in adding reducing agents is long, the reducing agents and smelting slag are mixed unevenly, the smelting period is long, the transformation rate that titanic oxide is transformed into titanium carbide is low, and electric consumption is high are solved. According to the scheme for solving the technical problems, the method for quick reduction smelting of the titaniferous furnace slag comprises the following steps that a, a reducing agent and hot titaniferous furnace slag just discharged out of a furnace are mixed and then added into a reduction furnace together, and pre-reduction is carried out at the temperature of 1,500 DEG C-1,650 DEG C; b, after pre-reduction, temperature is raised to 1,600 DEG C-1,750 DEG C, the reducing agent is replenished, and high-temperature reduction smelting is further carried out; and c, after smelting is finished, heating is stopped, slag is discharged, and titanium carbide furnace slag is obtained. According to the method, in the whole process, heat losses are small, the reduction reaction is fast, time is short, and energy consumption is low.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Method for quick reduction smelting of titaniferous furnace slag |
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