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High-temperature smelting furnace and metallurgy method using same

A smelting furnace and high-temperature technology, applied in the field of metallurgy, can solve problems such as lack of impurity removal and alloying of molten iron, low purity of metal melt, and inability to homogenize the melt, so as to shorten the discharging time, improve the smelting effect, Realize the effect of molten iron alloying and impurity removal

Active Publication Date: 2016-12-07
JIANGSU PROVINCE METALLURGICAL DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This existing technology can only realize the melting and separation of materials, the function is relatively single, it cannot quickly realize the homogenization of the melt, it does not have the functions of removing impurities and alloying the molten iron, and the purity of the obtained metal melt is not high

Method used

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  • High-temperature smelting furnace and metallurgy method using same
  • High-temperature smelting furnace and metallurgy method using same
  • High-temperature smelting furnace and metallurgy method using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] This embodiment provides a high-temperature smelting furnace.

[0073] see figure 1 , figure 2 and image 3 The high-temperature smelting furnace provided in this embodiment includes a burner 100, a feeding port 200, a slag outlet 301, a steel tapping port 302, a furnace bottom injection device 401, a furnace wall side wall injection device 402, and an alloy feeding device 501, The refining slag feeding device 502 and the furnace body 600 of the smelting furnace.

[0074] The high-temperature smelting furnace has four side furnace walls, which are respectively the first side furnace wall and the second side furnace wall arranged oppositely in the length direction, the third side furnace wall and the fourth side furnace wall arranged oppositely in the width direction, and also includes Stove top and bottom.

[0075] In this embodiment, the burners 100 are arranged on the first side furnace wall and the second side furnace wall. Depend on figure 1 and figure 2 It...

Embodiment 2

[0081] like Figure 4 As shown, this embodiment provides a metallurgical method using the high-temperature smelting furnace provided in Embodiment 1. The method is as follows:

[0082] The metallized pellet material is fed from the charging port 200 on the top of the smelting furnace, and the gas and auxiliary gas enter together from the burner 100, and heat is released after combustion to reach the temperature required for melting the metallized pellets. With the continuous addition and melting of metallized pellets, a melt with a certain depth of molten pool is gradually formed in the smelting furnace body 600 . Then, the furnace bottom injection device 401 and the furnace wall side wall injection device 402 are turned on, and the high-velocity gas loaded with reducing agent is injected into the furnace pool. The gas used is the high-temperature flue gas discharged from the high-temperature smelting furnace, and the reducing agent used is semi-coke powder. The amount of b...

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Abstract

The invention discloses a high-temperature smelting furnace and a metallurgy method using the high-temperature smelting furnace. The high-temperature smelting furnace comprises a first long furnace wall, a second long furnace wall, a third side furnace wall, a fourth side furnace wall, multiple nozzles, a feeding inlet, a slag outlet, a steel outlet, a furnace bottom injection device, a furnace wall side wall injection device, an alloy feeding device and a refining slag feeding device, wherein the first long furnace wall and the second long furnace wall are oppositely arranged in the length direction, the third side furnace wall and the four side furnace wall are oppositely arranged in the width direction, the multiple nozzles are evenly distributed on the first long furnace wall and the second long furnace wall in pairs, the feeding inlet is formed in the top of the furnace, the slag outlet and the steel outlet are formed in the fourth side furnace wall, the furnace bottom injection device is arranged outside the bottom of the furnace and close to the fourth side furnace wall, the furnace wall side wall injection device is arranged on the third side furnace wall and close to the bottom of the furnace, and the alloy feeding device and the refining slag feeding device are arranged on the second long furnace wall. The horizontal position of the steel outlet is below the horizontal position of the slag outlet, the horizontal position of the alloy feeding device is between the horizontal position of the slag outlet and the horizontal position of the steel outlet, and the horizontal position of the refining slag feeding device is below the horizontal position of the slag outlet. According to the technical scheme, molten iron alloying and impurity removal can be achieved, and the made steel does not need to be further treated.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a high-temperature smelting furnace and a metallurgy method using the furnace. Background technique [0002] In the steel and non-ferrous metallurgy industry, high-temperature smelting furnaces are required to smelt steel and non-ferrous metal products. Current smelting furnaces generally use electric heating to provide the heat required for material melting. However, the investment in electric heating equipment is large, and the electricity price is high, which leads to high production costs of the product. In order to further reduce costs, smelting furnaces that provide heat with relatively low-priced gas heating, or smelting furnaces that combine coal injection combustion with electric heating and gas heating, are gradually adopted. Although the cost is reduced, the problem of environmental pollution will be caused due to the large amount of coal powder used. [0003] Generally sp...

Claims

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Application Information

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IPC IPC(8): C22C33/04C21C7/064F27D7/00
CPCC21C7/064C22C33/04F27D7/00F27M2001/02F27M2003/13
Inventor 任中山徐刚闫方兴曹志成薛逊吴道洪
Owner JIANGSU PROVINCE METALLURGICAL DESIGN INST
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