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Sintered flyash ultralight ceramsite and preparation method thereof

A fly ash, ultra-light technology, applied in the production of clay products, other household utensils, ceramic materials, etc., can solve the problems of prolonging the firing process of ceramsite and low production efficiency, and achieve short production cycle, low cost, The effect of reducing pollution

Inactive Publication Date: 2018-04-17
李珠 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, too many heating and cooling steps are used in the firing process, which prolongs the firing process of ceramsite and lowers production efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] High-temperature roasted fly ash ultra-light ceramsite is fired according to the following formula:

[0030] Fly ash 44.5%,

[0031] Bentonite 18.5%,

[0032] Perlite tailings powder 37%,

[0033] Silicon carbide 1%,

[0034] Fluorite powder 2%;

[0035] In the above formula, the three raw materials of fly ash, bentonite and perlite tailings powder are the mass fractions.

[0036] Silicon carbide and fluorite powder are mass fractions, that is, the percentage of the mass of fly ash, bentonite, and perlite tailings powder mixture.

[0037] The preparation method steps of the above-mentioned high-temperature roasting fly ash ultra-light ceramsite are as follows:

[0038] (1) Pass fly ash, bentonite, and perlite tailings powder through a 200-mesh sieve, and dry in an oven;

[0039] (2) Take out the perlite tailings powder, fly ash and bentonite from the oven and cool down to room temperature naturally, and take 44.5% of the total mass of the three main mixtures to ta...

Embodiment 2

[0044] High-temperature roasted fly ash ultra-light ceramsite is fired according to the following formula:

[0045] Fly Ash 60%,

[0046] Bentonite 10%,

[0047] Perlite tailings powder 30%,

[0048] Silicon carbide 1%,

[0049] Fluorite powder 2%;

[0050] In the above formula, the three raw materials of fly ash, bentonite and perlite tailings powder are mass fractions;

[0051] The silicon carbide and fluorite powders are mass fractions, that is, the percentages of the mass of fly ash, bentonite, and perlite tailings powder mixture.

[0052] The preparation method steps of the above-mentioned high-temperature roasting fly ash ultra-light ceramsite are as follows:

[0053] (1) Pass fly ash, bentonite, and perlite tailings powder through a 200-mesh sieve, and dry in an oven;

[0054] (2) Take out the perlite tailings powder, fly ash and bentonite from the oven and cool down to room temperature naturally, and take 60% of the total mass of the three main mixtures to take f...

Embodiment 3

[0059] High-temperature roasted fly ash ultra-light ceramsite is fired according to the following formula:

[0060] Fly Ash 40%,

[0061] Bentonite 20%,

[0062] Perlite tailings powder 40%,

[0063] Silicon carbide 1%,

[0064] Fluorite powder 2%;

[0065] In the above formula, the three raw materials of fly ash, bentonite and perlite tailings powder are mass fractions;

[0066]The silicon carbide and fluorite powders are mass fractions, that is, the percentages of the mass of fly ash, bentonite, and perlite tailings powder mixture.

[0067] The preparation method steps of the above-mentioned high-temperature roasting fly ash ultra-light ceramsite are as follows:

[0068] (1) Pass fly ash, bentonite, and perlite tailings powder through a 200-mesh sieve, and dry in an oven;

[0069] (2) Take out the perlite tailings powder, fly ash and bentonite from the oven and cool down to room temperature naturally, take 60% of the total mass of the three main mixtures to take fly as...

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Abstract

The invention discloses sintered flyash ultralight ceramsite and a preparation method thereof. The sintered flyash ultralight ceramsite is prepared by sintering, by mass, 35-60% of flyash, 10-30% of bentonite, 30-50% of pearlite tailing powder, 0-2% of silicon carbide and 0-5% of fluorite powder, wherein the percentages of the flyash, bentonite, pearlite tailing powder, silicon carbide and fluorite powder are percentages by mass. The sintered flyash ultralight ceramsite prepared herein is light aggregate having the advantages of small intensity, high strength, low water absorption rate, good heat-holding performance, good heat isolation and the like, can replace common gravels to produce light aggregate concrete, hollow blocks and the other building materials.

Description

technical field [0001] The invention belongs to the field of ceramsite preparation, in particular to a high-temperature roasted fly ash ultra-light ceramsite and a preparation method thereof. The high-temperature roasted fly ash ultra-light ceramsite prepared by the method is suitable for lightweight thermal insulation concrete and its products. Background technique [0002] As a light aggregate, fly ash ultra-light ceramsite has the characteristics of low density, high strength, low water absorption, heat preservation and heat insulation. It has a wide range of uses, and can be used as water treatment filter material, adsorbent, soilless culture medium in agriculture and gardens, and can also replace ordinary sand and gravel to prepare light aggregate concrete and hollow blocks and other building materials. The biggest feature of ceramsite is that it is hard on the outside and has many micropores inside, which endow ceramsite with light weight. [0003] Fly ash is the main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/135C04B33/13C04B18/02
CPCC04B18/027C04B33/13C04B33/1352C04B2235/3826C04B2235/445C04B2235/606C04B2235/656C04B2235/6562C04B2235/6567C04B2235/77C04B2235/96Y02P40/60
Inventor 李珠王亮张玉
Owner 李珠