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Sintering method of high-chromium type vanadium titano-magnetite

A technology of vanadium titanomagnetite and sintering method is applied in the sintering of ore and the sintering field of high chromium vanadium titanomagnetite, which can solve the problem of low strength of high chromium vanadium titanomagnetite sintering and high chromium vanadium sintering. Difficulty sintering titanomagnetite and other problems, to achieve the effect of increasing the amount of liquid phase, increasing the strength, and increasing the silicate binder phase

Active Publication Date: 2016-06-08
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of high-chromium vanadium-titanium magnetite sintering difficulty in the prior art and the low strength of high-chromium vanadium-titanium magnetite sintered ore, and propose a corresponding technical solution for solving the above-mentioned problems. at least one of the questions

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  • Sintering method of high-chromium type vanadium titano-magnetite
  • Sintering method of high-chromium type vanadium titano-magnetite

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[0014] The high chromium vanadium titanomagnetite sintering method of the present invention will be described in detail below in conjunction with examples.

[0015] For high-chromium vanadium-titanium magnetite, due to the low content of TFe, TiO 2 High content, Cr 2 o 3 High content, SiO 2 If the content is low, the liquid phase will be low during the sintering process, which will result in low strength of sintered ore and more powder, which will seriously affect the output and quality of sintered ore.

[0016] As an embodiment of the present invention, the sintering method of concrete high-chromium type vanadium-titanium magnetite comprises the following steps:

[0017] Step 1, 3-8 parts by weight of low-iron high-silicon powder ore, 18-22 parts of high-iron and low-silicon ore powder, 50-60 parts of high-chromium vanadium-titanium magnetite, 3-8 parts of limestone Powder, 6-10 parts of active lime and 4.5-5 parts of coke powder are mixed to form a mixture, and the alkal...

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Abstract

The invention discloses a sintering method of high-chromium type vanadium titano-magnetite. The sintering method comprises steps as follows: step one, components including, in parts by weight, 3-8 parts of low-iron high-silicon powder ore, 18-22 parts of high-iron low-silicon powder ore, 50-60 parts of high-chromium type vanadium titano-magnetite, 3-8 parts of limestone powder, 6-10 parts of active lime and 4.5-5 parts of coke powder are blended to form a mixture, and the alkalinity of the mixture is controlled to be 1.7-2.1; step two, water is added to the mixture, and the weight percentage of water in the mixture after the water is added is 7.2%-7.6%; step three, primary mixing and granulation as well as secondary mixing and granulation are performed, a material after secondary mixing and granulation is added to a sintering machine to be sintered, and the height of the material layer is controlled at 630-730 mm. Through reasonable control of the proportion of materials, the high-chromium type vanadium titano-magnetite can be sintered, a silicate binding phase of sintering ore can be increased, and the strength of the sintering ore is improved.

Description

technical field [0001] The invention relates to a sintering method of ore, in particular to a sintering method of high-chromium vanadium-titanium magnetite, belonging to the technical field of vanadium-titanium magnetite sintering. Background technique [0002] my country has abundant reserves of vanadium-titanium magnetite, especially, there are a large amount of vanadium-titanium magnetite in the Panxi area, and a large amount of high-chromium vanadium-titanium magnetite is stored in the Honggenan mining area. The sintering and blast furnace smelting technologies of vanadium-titanium magnetite are relatively mature. The sintering and blast furnace smelting of high-chromium vanadium-titanium magnetite are still in the research stage. The main characteristics of this part of resources are high chromium content, high titanium content, and low silicon content. [0003] However, for the sintering process, due to the high chromium vanadium titanomagnetite SiO 2 Low content, Cr ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/16C22B1/14
CPCC22B1/14C22B1/16
Inventor 付卫国甘勤蒋胜何木光
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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