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Iron tailing far-infrared ceramic material and preparation method thereof

A technology of far-infrared ceramics and ceramic materials, applied in the field of iron tailings far-infrared ceramic materials and their preparation, can solve the problems of low utilization rate of iron tailings materials and infrared radiation ceramics, etc.

Active Publication Date: 2014-08-13
南京中蓝智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a far-infrared ceramic material for iron tailings and its preparation method in order to solve the low utilization rate of iron tailings materials and the obvious deficiencies in the preparation of infrared radiation ceramics in the prior art.

Method used

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  • Iron tailing far-infrared ceramic material and preparation method thereof
  • Iron tailing far-infrared ceramic material and preparation method thereof
  • Iron tailing far-infrared ceramic material and preparation method thereof

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preparation example Construction

[0020] The invention mainly uses iron tailings, clay, silicon dioxide, calcium carbonate and alumina as raw materials, and after ball milling, sieving, batching, stirring, drying, mixing, dry pressing and sintering, the iron tailings can be obtained. Infrared ceramic materials. Specifically, the preparation method of the present invention adopts the weight percent composition of the iron tailings far-infrared ceramic material of the present invention and the following process steps:

[0021] A. Put the iron tailings into a ball mill and mill them for 30-120 minutes, and then pass through a 350-mesh sieve to obtain iron tailings powder;

[0022] B, get the iron tailings powder body that obtains in the step A of weight 35~75%, add the clay that is 1~9% again, the silicon dioxide of 11~25%, the calcium carbonate of 11~25%, 2~ 6% alumina, and 15-30% water by weight of the above-mentioned raw materials, mixed and kept stirring for 30-90 minutes;

[0023] C. Dry the mixture in ste...

Embodiment 1

[0036] Design a kind of preparation method that iron tailings prepares far-infrared ceramics, this preparation method adopts following process:

[0037] A. Put the iron tailings into a ball mill and mill them for 30 minutes, and pass through a 350-mesh sieve after ball milling to obtain iron tailings powder;

[0038] B. Take the iron tailings powder obtained in step A of 35% by weight, and then add 9% clay, 25% silicon dioxide, 25% calcium carbonate, 6% aluminum oxide, and the above-mentioned raw materials 15% water by weight, mix and keep stirring for 30min;

[0039] C. Dry the mixture in step B at 100°C for 1 hour;

[0040] D, after mixing the dried mixture in step C for 60 minutes by ball milling, pass through a 120-mesh sieve;

[0041] E. Press the mixture in step D under the conditions of molding pressure of 30 MPa and holding pressure for 1.5 minutes to obtain a ceramic green body, put the green body into a sintering furnace for sintering, and finally obtain iron taili...

Embodiment 2

[0045] Design a kind of preparation method that iron tailings prepares far-infrared ceramics, this preparation method adopts following process:

[0046] A. First put the iron tailings into a ball mill for ball milling for 60 minutes, and pass through a 350-mesh sieve after ball milling to obtain iron tailings powder;

[0047] B. Take the iron tailings powder obtained in step A of 45% by weight, and then add 7% clay, 22% silicon dioxide, 22% calcium carbonate, 4% aluminum oxide, and the above-mentioned raw materials 20% water by weight, mix and keep stirring for 50min;

[0048] C. Dry the mixture in step B at 105°C for 1 hour;

[0049] D, after mixing the dried mixture in step C for 70 minutes by ball milling, pass through a 120-mesh sieve;

[0050] E. Press the mixed material in step D under the conditions of molding pressure of 30MPa and holding pressure for 1min to obtain a ceramic green body, put the green body into a sintering furnace for sintering, and finally obtain ir...

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Abstract

The invention discloses an iron tailing far-infrared ceramic material and a preparation method thereof. The ceramic material is characterized by being prepared from the following components in percentage by weight: 35-75% of iron tailings, 1-9% of clay, 11-25% of silicon dioxide, 11-25% of calcium carbonate and 2-6% of aluminum oxide, wherein the sum of the percentage of the components is 100%; the iron tailing comprises the following main components: 30-35% of SiO2, 20-25% of Fe2O3, 10-15% of Al2O3, 10-15% of TiO2 and a small amount of CaO, Na2O and MgO, and the sum of percentage of the components is 100%; XRD shows that the main components of the ceramic material are anorthite, diopside and titanium sheet iron ore. According to the preparation method, the iron tailing, the clay, silicon dioxide, calcium carbonate and aluminum oxide are used as raw materials, and are subjected to ball-milling, screening, allocation, stirring, drying, mixing, dry pressing forming and sintering, thereby preparing the iron tailing far-infrared ceramic material.

Description

technical field [0001] The invention belongs to the technical field of ceramics, and in particular relates to an iron tailings far-infrared ceramic material and a preparation method thereof. Background technique [0002] With the rapid development of the iron and steel industry, iron ore tailings account for an increasing proportion of industrial solid waste. According to incomplete statistics, there are more than 150 kinds of minerals discovered in my country at present, and more than 8,000 mines have been developed and established. / 3. Improper handling of iron tailings has brought great harm to the natural ecology and human society. The main harms include the following aspects: (1) The huge amount of stacking occupies a large amount of cultivated land and covers a large amount of vegetation, which exacerbates the situation of more people and less land. Contradictions: (2) Due to the limitation of technical level, equipment performance and economic conditions, etc., resou...

Claims

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Application Information

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IPC IPC(8): C04B35/00C04B35/622
Inventor 孟军平刘洁梁金生张洪臣
Owner 南京中蓝智能科技有限公司
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