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Iron ore slag sintered brick and a preparation technology of same

A technology for sintered bricks and slag, applied in the field of sintered bricks, can solve the problems of cracking or bursting of sintered bricks, difficulty in sintering, and complex components of iron ore slag, and achieve the effects of wide source of raw materials, saving land resources, and protecting cultivated land.

Active Publication Date: 2012-06-13
上海鑫晶山建材开发有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the extremely complex properties and components of iron ore slag, it is easy to crack or burst when making sintered bricks, so sintering is difficult, and it is difficult to make sintered bricks that meet the requirements of building performance and industrialization in the prior art. brick

Method used

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  • Iron ore slag sintered brick and a preparation technology of same
  • Iron ore slag sintered brick and a preparation technology of same
  • Iron ore slag sintered brick and a preparation technology of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Iron ore slag sintered brick raw materials, by absolute dry weight, include the following components in parts by weight:

[0039] 32 parts by weight of iron ore slag;

[0040] Coal gangue 32.2 parts by weight;

[0041] Silt 21 parts by weight;

[0042] 8 parts by weight of clinker;

[0043] The above-mentioned iron ore slag, coal gangue and clinker are powders with a particle size of 0.1-0.3mm. The iron ore slag in this embodiment comes from the iron ore slag powder waste produced in Lujiang, Anhui.

[0044] The preparation method of iron ore slag sintered brick (as figure 1 Shown process flow diagram, wherein the machine adopted is conventional equipment in the prior art) is:

[0045] Dry and dehydrate iron ore slag with a water content of 30% to a water content of 13-18%; grind coal gangue and clinker to a particle size of 0.1-0.3mm; The river silt is aged, dehydrated and dried until the water content is 13-18%; according to the ratio, coal gangue, river silt an...

Embodiment 2

[0050] Iron ore slag sintered brick raw materials, by absolute dry weight, include the following components in parts by weight:

[0051] 32 parts by weight of iron ore slag;

[0052]Coal cinder 31.5 parts by weight;

[0053] Silt 20 parts by weight;

[0054] 8 parts by weight of clinker;

[0055] The above-mentioned iron ore slag, coal cinder and clinker are powders with a particle size of 0.1-3mm. The iron ore slag in this embodiment comes from the iron ore slag waste produced in Lujiang, Anhui.

[0056] The preparation method of iron ore slag sintered brick is:

[0057] Dry and dehydrate the iron ore slag with a water content of 30% to a water content of 13-18%; grind the cinder and clinker to a particle size of 0.1-3mm; grind the river sludge with a water content of 25%-40% After aging, dehydration and drying to a moisture content of 13-18%; according to the proportion, coal cinder, river sludge and clinker are added to iron ore slag and mixed, and water is added to ad...

Embodiment 3

[0061] Iron ore slag sintered brick raw materials, by absolute dry weight, include the following components in parts by weight:

[0062] 28 parts by weight of iron ore slag;

[0063] 27.6 parts by weight of coal gangue;

[0064] Silt 18 parts by weight;

[0065] 5 parts by weight of clinker;

[0066] The above-mentioned iron ore slag, coal gangue and clinker are powders with a particle size of 0.1-0.3mm. The iron ore slag in this embodiment comes from the iron ore slag waste produced in Lujiang, Anhui.

[0067] The preparation method of iron ore slag sintered brick is:

[0068] Dry and dehydrate iron ore slag with a water content of 30% to a water content of 12-18%; grind coal gangue and clinker to a particle size of 0.1-0.3mm; The river silt is aged, dehydrated and dried until the water content is 12-18%; according to the ratio, coal gangue, river silt and clinker are added to the iron ore slag for mixing, and water is added to adjust the water content of the mixture to ...

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Abstract

The invention relates to a sintered brick, in particular to a sintered brick made of iron ore slag and a preparation technology of the sintered brick. The sintering raw material of the iron ore slag sintered brick comprises the components by bone dry weight as follows: 28 to 36 portions of iron ore slag, 27.6 to 41.4 portions of coal gangue or 25.5 to 38.25 portions of coal slag, 20 to 30 portions of silt and 5 to 15 portions of clinker. The iron ore slag sintered brick provided by the invention has the advantages that the source of raw materials is ample, waste iron ore slag is recycled, soil resources are saved, cultivated lands are protected, waste iron ore slag that can be obtained on a large scale and is of great quantity is fully utilized, the waste is changed into valuable, and theenvironment is purified. The obtained iron ore slag sintered brick has the effects of heat preservation, thermal insulation shock resistance and pressure resistance; and peeling and distortion are avoided, breakage or explosion does not occur easily, the yield can reach over 99%, and the sintered brick is suitable for industrial production and can be widely used as wall bricks of buildings.

Description

technical field [0001] The invention relates to a sintered brick, in particular to a sintered brick made from iron ore slag and a preparation process thereof. Background technique [0002] There are two types of iron ore slag, one is the glassy by-product formed when the molten slag of blast furnace ironmaking has no time to crystallize when it is quenched, and it is in the form of fine particles or powder; the other is the extraction of iron ore after grinding the iron ore After the residual slag powder, this type of iron ore slag is the iron ore waste before the blast furnace ironmaking melting, what the present invention adopted is the second type of iron ore slag powder. [0003] Because the iron ore of different production places has different component contents, the composition of the iron ore slag produced is quite complicated. Although iron ore slag has been used in the prior art, it is generally to carry out a certain physical treatment on the iron ore slag. Treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/00C04B18/12
CPCY02W30/91
Inventor 陈文光
Owner 上海鑫晶山建材开发有限公司
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