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White-mud baked brick and production method thereof

A technology of sintered bricks and white mud, applied in the field of sintered bricks, can solve the problems of fragility, easy to burst, and failure to achieve industrialization, and achieve the effects of protecting cultivated land, not easy to burst, and saving land resources

Inactive Publication Date: 2014-04-16
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 high alkalinity and complex composition of white clay, it is fragile and easy to burst when the addition amount is greater than 5% when making fired bricks, so it is difficult to sinter and cannot meet the requirements of industrialization

Method used

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  • White-mud baked brick and production method thereof
  • White-mud baked brick and production method thereof
  • White-mud baked brick and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The raw materials of white mud fired bricks include the following components in parts by weight in terms of absolute dry weight:

[0036] 32 parts by weight of white mud;

[0037] Coal gangue 32.2 parts by weight;

[0038] 18 parts by weight of shale;

[0039] 8 parts by weight of clinker.

[0040] The above-mentioned coal gangue, shale and clinker powder all have a particle size of 0.1-3mm.

[0041] The preparation method of white mud sintered brick (such as figure 1 Shown process flow diagram, wherein the machine adopted is conventional equipment in the prior art) is:

[0042] Dry and dehydrate white mud (the white mud produced by Shaxian Qingzhou Paper Co., Ltd., Sanming City, with a moisture content of 35%) to a moisture content of 13%-18%; grind coal gangue, shale and clinker to particle size All are 0.1-3mm; add shale, coal gangue, and clinker to white mud together according to the proportion, mix and add water to adjust the moisture content of the mixture to...

Embodiment 2

[0047] The raw materials of white mud fired bricks include the following components in parts by weight in terms of absolute dry weight:

[0048] 32 parts by weight of white clay;

[0049] Coal gangue 32.2 parts by weight;

[0050] 16 parts by weight of engineering slag;

[0051] 8 parts by weight of clinker.

[0052] The above-mentioned coal gangue, shale and clinker powder all have a particle size of 0.1-3mm.

[0053] The preparation method of white mud sintered brick is:

[0054]Dry and dehydrate the white mud (the white mud produced by Qingzhou Paper Industry Co., Ltd., Sha County, Sanming City, with a moisture content of 35%) to a water content of 13%-18%; use the water content of 20-40% on the ground Dry the engineering slag to a moisture content of 13-18%; grind the coal gangue, engineering slag and clinker to a particle size of 0.1-3mm; add the coal gangue, engineering slag and clinker together according to the ratio mixing with white mud and adding water to adjust...

Embodiment 3

[0059] The raw materials of white mud fired bricks include the following components in parts by weight in terms of absolute dry weight:

[0060] 28 parts by weight of white mud;

[0061] 35 parts by weight of coal gangue;

[0062] 13.5 parts by weight of shale;

[0063] 10 parts by weight of clinker.

[0064] The above-mentioned coal gangue, shale and clinker powder all have a particle size of 0.1-3mm.

[0065] The preparation method of white mud sintered brick is:

[0066] Dry and dehydrate white mud (the white mud produced by Shaxian Qingzhou Paper Co., Ltd., Sanming City, with a moisture content of 35%) to a moisture content of 13%-18%; grind coal gangue, shale and clinker to particle size All are 0.1-3mm; add shale, coal gangue, and clinker to white mud together according to the proportion, mix and add water to adjust the moisture content of the mixture to 13%-18%, and age for 7 days. After aging, it is fully stirred, rolled and crushed by a pair of rollers, extruded ...

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Abstract

The invention relates to a baked brick, in particular to a baked brick prepared from white mud of a paper plant and a preparation process thereof. Baking raw materials of the white-mud baked brick provided by the invention comprise the following components in parts by weight according to absolute dry weight: 28-36 parts of the white mud, 27.6-41.4 parts of coal gangue, 12-20 parts of project dregs or 13.5-22.5 parts of shale, and 5-15 parts of clinker. The white-mud baked brick provided by the invention has the advantages of wide resource of the raw materials and reutilization of the waste pollutant white mud, so that the land resource is saved, the cultivated land is protected, the white mud of the paper plant which has a wide range and great amount and is easy to cause secondary pollution is sufficiently utilized, wastes are changed into valuable things and the environment is purified. The white-mud baked brick provided by the invention has the advantages of heat preservation and heat insulation, seismic resistance and pressure resistance, no peeling or hoarseness, and uneasiness of being crushed and burst, and the yield can reach to be more than 99 percent, so that the white-mud baked brick is applicable to industrial production in a large scale.

Description

technical field [0001] The invention relates to a sintered brick, in particular to a sintered brick made of white mud from a paper mill. Background technique [0002] White mud is the waste residue recovered from papermaking alkali. Different paper mills use different papermaking raw materials, and the composition of the white mud obtained is also very different. There have been some researches on the recovery and reuse of white mud recovered from papermaking alkali. However, the problem of effective utilization of lime mud has not been completely solved. Generally, lime mud needs to be pre-treated, because the lime mud is highly alkaline, and it cannot be used directly without treatment. It will consume a lot of energy and cost during treatment. And the usage amount of lime mud is also very low during utilization, generally no more than 5%. [0003] Usually, a small and medium-sized paper mill produces at least 100,000 to 150,000 tons of waste residue, commonly known as li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B35/00C04B35/622B09B3/00
Inventor 陈文光
Owner 上海鑫晶山建材开发有限公司
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