Sintering ore pulverization inhibitor

A technology of inhibitor and sinter, which is applied in the field of sinter pulverization inhibitor, can solve the problems of price rise, decline of metallurgical properties of ironmaking raw materials, and impact on blast furnace production increase and consumption reduction, etc., to achieve increased output, lower coke ratio, and economic benefits significant effect

Inactive Publication Date: 2008-08-06
刘捷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, with the continuous expansion of ironmaking capacity, all kinds of fine ore suitable for sintering are increasingly scarce, and the price is rising. In order to control the cost of ironmaking, enterprises have to take second place and use a large amount

Method used

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Experimental program
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Embodiment Construction

[0013] The present invention will be further described below through embodiment.

[0014] In an embodiment, the components of the sinter pulverization inhibitor include calcium chloride, magnesium chloride, boric acid, and bromine, and the weight percentages of each component are: 70% to 75% of calcium chloride, 10% to 15% of magnesium chloride, Boric acid 10%~15%, bromine 1%~3%;

[0015] The purity of the above-mentioned components is: calcium chloride 92%, magnesium chloride 97%, boric acid 99.8%, bromine 99.9%. Production process:

[0016] 1. Grind various raw materials to below 200 mesh;

[0017] 2. Mix in proportion in a dry workshop;

[0018] 3. Mix with a strong mixer;

[0019] 4. Inner plastic and outer braided sealed packaging is the finished product.

[0020] The specific numerical values ​​of each embodiment are as follows: (percentage by weight)

[0021] Example 1

Example 2

Example 3

calcium chloride

72％

73％

74％

...

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PUM

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Abstract

The invention relates to additive which is used for sintering production and in particular relates to sintered ore powdering inhibitor. The technical scheme is that the inhibitor comprises calcium chloride, magnesium chloride, boric acid and bromine, the weight percentage of each component is that: the calcium chloride 70%-75%, the magnesium chloride 10%-15%, the boric acid 10%-15% and the bromine1%-3%, the purity of each component is that the calcium chloride 92%, the magnesium chloride97%, the boric acid 99.8% and the bromine99.9%, The inhibitor improves the metallurgical property of sintered ores, inhibits powdering, and impels blast furnace conditions to operate smoothly, simultaneously, the metallurgical property of coke is improved, and the coke ratio is lowered. Experiments show that the sintered ore powdering inhibitor has good using effect, the blast furnace is stable and operates smoothly, the air volume is stable, the output is increased, the coke ratio is lowered, and the economic benefit is prominent. The blast furnace output can be increased by 1.5% and the coke ratio can be lowered by 1.55% through adopting the inhibitor of the invention.

Description

Technical field: [0001] The invention relates to an additive for sintering production, especially a sintering ore pulverization inhibitor. Background technique: [0002] In ironmaking and sintering production, sintered ore is prone to pulverization. At present, the efficiency of blast furnaces has been greatly improved, and higher requirements have been placed on the performance of raw materials. For blast furnaces that use a large number of sintered ore as the main raw material, the restrictive factors for intensified smelting must be the various properties of sintered ore and coke. , especially metallurgical properties. On the other hand, with the continuous expansion of ironmaking capacity, all kinds of fine ore suitable for sintering are increasingly scarce, and the price is rising. In order to control the cost of ironmaking, enterprises have to take second place and use a large amount of certain sintering ore and coke. Resources that have adverse effects on metallurgi...

Claims

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Application Information

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IPC IPC(8): C22B1/08
Inventor 刘捷
Owner 刘捷
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