Method for sintering vanadium/titanium magnetite concentrate and siderite

A vanadium-titanium-magnetite concentrate and sintering method technology, applied in the metallurgical field, can solve problems such as rising sintered solid fuel consumption, and achieve the effects of reducing raw material costs, alleviating resource shortages, and maintaining product quality

Active Publication Date: 2014-03-12
PANGANG GRP PANZHIHUA STEEL & VANADIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The test pointed out that the addition of 10% Wangjiatan siderite in production did not have a great impact on sintering and blast furnace, but the sintering solid fuel consumption increased greatly

Method used

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  • Method for sintering vanadium/titanium magnetite concentrate and siderite

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Use the following method to sinter vanadium-titanium magnetite concentrate with siderite. First, prepare the siderite ore: use a small vibrating screen to screen the purchased siderite raw ore in the raw material storage yard, so as to screen out the part with a particle size greater than 8mm, and then use the jaw crusher to crush the oversized material. The gap of the crusher is 6mm, and then the siderite obtained after crushing is mixed with the undersieve, so that the content of the siderite with a particle size>8mm accounts for 5wt% of the total siderite content, and the particle size< The content of 1mm siderite accounts for 10wt% of the total siderite content. Then, raw materials were prepared in accordance with the component ratios shown in Table 1 and the particle size compositions shown in Table 2 below.

[0040] Table 1 The main components of the raw fuel of Example 1 (wt%)

[0041] raw material name

TF

SiO 2

CaO

h 2 o

burn ...

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Abstract

The invention discloses a method for sintering a vanadium/titanium magnetite concentrate and siderite, which comprises the steps as follows: crude fuel materials are prepared, and comprises siderite, iron ore, a flux and fuel materials; crude ore of the siderite is processed, the content of one kind of siderite with a particle grade greater than 8 mm is less than 10 wt% of the total siderite, and the content of another kind of siderite with a particle grade less than 1 mm is less than 20 wt% of the total siderite, so that the siderite is obtained, and the iron ore comprises the vanadium/titanium magnetite concentrate and other kind of iron ore; the crude fuel materials are mixed, on the basis of the total weight of the crude fuel materials, the weight percent of the siderite is 1wt%-10wt%, the weight percentage of the vanadium/titanium magnetite concentrate is 50wt%-60wt%, in addition, the weight percentage of the iron ore is 10wt% to 30wt%; mixing, material distribution, ignition and sintering are performed. According to the method for sintering the vanadium/titanium magnetite concentrate and the siderite, low-quality siderite and low-quality vanadium/titanium magnetite concentrate are used and sintered, as a result, the resource shortage can be remitted, the raw material cost is lowered, and the level of main technical indexes is kept.

Description

technical field [0001] The invention belongs to the technical field of metallurgy. Specifically, the invention relates to a sintering method of adding siderite to vanadium-titanium magnetite concentrate. Background technique [0002] Currently, siderite (FeCO 3 ) is one of the ores with the worst utilization value and utilization level in nature. China's siderite resources are very rich, the proven reserves are nearly 2 billion tons, and the remaining reserves are nearly 2 billion tons, but they are basically still in the stage of development. Because siderite contains clay, gangue impurities, etc., the iron content of natural siderite is only 20% to 30%, or even lower. Contains 62.01% FeO and 37.99% CO in pure siderite 2 , due to CO 2 The content of CO is relatively high, and it is uneconomical to directly adopt the method of crushing-grinding-separation, and the CO2 must be removed through the roasting process. 2 Then mineral processing is carried out, but the cost of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/16
Inventor 蒋大均杜斯宏何木光宋剑吴亚明张远祥陈明华
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM
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