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Steel-smelting regulator and preparation thereof

A technology of adjusting agent and bonding agent, which is applied in the field of iron and steel smelting, can solve the problems of dust removal and pollution of the environment, achieve good effect, reduce production cost, and realize the effect of recycling and reuse

Inactive Publication Date: 2009-04-22
PANZHIHUA GANGCHENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem in the prior art that dumping the dust removal ash will pollute the environment

Method used

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  • Steel-smelting regulator and preparation thereof
  • Steel-smelting regulator and preparation thereof
  • Steel-smelting regulator and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 Preparation of steelmaking regulator of the present invention

[0047] After weighing 67% by weight of dust ash, 13% by weight of silicon carbide material and 20% by weight of magnesia material, they are sent into the mixing mixer for thorough mixing and stirring, and magnesium chloride is added during the mixing and stirring process. Addition amount is 5% by weight of the total weight (the total weight of dust removal ash, silicon carbide material, and magnesium material), slowly and uniformly add in an appropriate amount of water, mixed and stirred, and then sent to the ball press to make a ball of 30mm~ 50mm oval. Then pile and dry naturally for 48 hours (waterproof and sunscreen during drying) to further improve the product strength. The product is then dried in a vertical drying oven, the drying temperature is 220-250℃, and the drying time is 1h. Baked products have been tested for chemical composition (see Table 3 for chemical composition testing) and crushi...

Embodiment 2

[0048] Example 2 Preparation of steelmaking regulator of the present invention

[0049] 73% by weight of dust removal ash, 7% by weight of silicon carbide material and 20% by weight of magnesia material are weighed and sent into the mixing mixer for thorough mixing and stirring, and magnesium chloride binder is added during the mixing and stirring process , The addition amount is 5% by weight of the total weight (the total weight of dust removal ash, silicon carbide materials, and magnesium materials), slowly and uniformly add in and an appropriate amount of water, mixed and stirred, and then sent to the ball press to press into a ball of 30mm-50mm Oval shape. Then pile and dry naturally for 48 hours (waterproof and sunscreen during drying) to further improve the product strength. The product is then dried in a vertical drying oven, the drying temperature is 220-250℃, and the drying time is 1h. The baked products have been tested for chemical composition (see Table 3 for chemical ...

Embodiment 3

[0050]Example 3 Preparation of steelmaking regulator of the present invention

[0051] Weigh 70% by weight of dust removal ash, 12% by weight of silicon carbide material, and 18% by weight of magnesia material, and then send them into the mixing mixer for thorough mixing and stirring, and adding magnesium chloride binder during the mixing and stirring process , The addition amount is 5% by weight of the total weight (the total weight of dust removal ash, silicon carbide materials, and magnesium materials), slowly and uniformly add in and an appropriate amount of water, mixed and stirred, and then sent to the ball press to press into a ball of 30mm-50mm Oval shape. Then pile and dry naturally for 48 hours (waterproof and sunscreen during drying) to further improve the product strength. The product is then dried in a vertical drying oven, the drying temperature is 220-250℃, and the drying time is 1h. The baked products have been tested for chemical composition (see Table 3 for chemi...

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Abstract

The invention belongs to the ironmaking and steelmaking field, and provides a steelmaking regulator with settled dust as a main material and a method for preparing the same. The invention aims at solving the problem existing in prior art that discharged settled dust causes environmental pollution. The steelmaking regulator is prepared from the following materials in weight percentage: 67 to 73 percent of settled dust, 7 to 13 percent of silicon carbide material, 15 to 20 percent of magnesium material, and bonding agent which accounts for 5 to 10 percent of the total weight of the settled dust, the silicon carbide material and the magnesium material. The steelmaking regulator can completely replace the prior technique of adding modifier and furnace protecting material, has good slag regulating and slag thickening effect, has better slag splashing furnace protection effect compared with the prior product, reducing TFe in slag, obviously lowering production cost of steelmaking, thoroughly eliminating environmental pollution caused by the emission of steelmaking high calcium settled dust and realizing the recovery and the reutilization of resources.

Description

Technical field [0001] The invention belongs to the field of iron and steel smelting, and specifically relates to a steelmaking regulator manufactured by the dust removal ash and a preparation method thereof. Background technique [0002] Steelmaking is a metallurgical process involving physical and chemical reactions. In this process, the raw materials used in steelmaking often accumulate a large amount of dust with a small particle size after passing through the silo, which will seriously pollute the environment. Therefore, many companies install dust removal devices in the steel-making raw material processing ring and production process. The dust collected by these dust removal devices is called dust removal ash. The dust removal ash body is compact and fine in size. A large amount of smoke and dust will be generated during storage and transportation, which seriously pollutes the environment. In order to solve the problem of large accumulation of dust removal ash, many compani...

Claims

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Application Information

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IPC IPC(8): C21C5/28C21C7/076
CPCY02P10/20
Inventor 青光红陈涛黎光正边程军吴胜利陈桂卫郑德明
Owner PANZHIHUA GANGCHENG GROUP
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