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High-strength and lightweight shale ceramsite and preparation method thereof

A light shale, high-strength technology, applied in the field of ceramsite processing, can solve the problem that it is difficult to meet the requirements of new building materials for lightweight ceramsite at the same time, so as to reduce the roasting time, lighten the weight and improve the performance of ceramsite Effect

Pending Publication Date: 2019-04-02
郑州德赛尔陶粒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the bulk density of the current shale ceramsite is 300kg / m 3 It is difficult to meet the requirements of new building materials for lightweight ceramsite at the same time

Method used

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  • High-strength and lightweight shale ceramsite and preparation method thereof
  • High-strength and lightweight shale ceramsite and preparation method thereof
  • High-strength and lightweight shale ceramsite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: A kind of high-strength light weight shale ceramsite, is made up of the raw material of following mass percentage: Shale 10%, bauxite 25%, vermiculite 3%, fly ash 16%, quartz powder 15%, Kaolinite 17%, Perlite 1%, Quicklime 1% and Washed Sand 12%.

[0020] A preparation process of the above-mentioned high-strength light shale ceramsite, comprising the following steps:

[0021] Step 1: respectively crush shale, bauxite, vermiculite, kaolinite, and perlite through a jaw crusher to particles with a particle size of 2-45 mm;

[0022] Step 2: The shale, bauxite, vermiculite, kaolinite, and perlite in step 1 are mechanically pulverized through coarse powder and fine powder pulverizer in turn, and then sieved after pulverization. The particle size of the screened shale is ≤6mm , the particle size of bauxite ≤ 4mm, the particle size of vermiculite powder ≤ 5mm, the particle size of kaolinite ≤ 6mm, the particle size of perlite ≤ 6mm;

[0023] Step 3: Weigh accor...

Embodiment 2

[0027] Embodiment 2: a kind of high-strength lightweight shale ceramsite, is made up of the raw material of following mass percentage: shale 5%, bauxite 16%, vermiculite 7%, fly ash 22%, quartz powder 25%, 12% kaolinite, 2% perlite, 2% quicklime and 9% washed sand.

[0028] A preparation process of the above-mentioned high-strength light shale ceramsite, comprising the following steps:

[0029] Step 1: respectively crush shale, bauxite, vermiculite, kaolinite, and perlite through a jaw crusher to particles with a particle size of 2-45mm;

[0030] Step 2: The shale, bauxite, vermiculite, kaolinite, and perlite in step 1 are mechanically pulverized through coarse powder and fine powder pulverizer in turn, and then sieved after pulverization. The particle size of the screened shale is ≤6mm , the particle size of bauxite ≤ 4mm, the particle size of vermiculite powder ≤ 5mm, the particle size of kaolinite ≤ 6mm, the particle size of perlite ≤ 6mm;

[0031] Step 3: Weigh according...

Embodiment 3

[0035] Embodiment 3: a kind of high-strength lightweight shale ceramsite, is made up of the raw material of following mass percentage: shale 7%, bauxite 20%, vermiculite 5%, fly ash 19%, quartz powder 20%, 14% kaolinite, 2% perlite, 2% quicklime and 11% washed sand.

[0036] A preparation process of the above-mentioned high-strength light shale ceramsite, comprising the following steps:

[0037] Step 1: respectively crush shale, bauxite, vermiculite, kaolinite, and perlite through a jaw crusher to particles with a particle size of 2-45 mm;

[0038] Step 2: The shale, bauxite, vermiculite, kaolinite, and perlite in step 1 are mechanically pulverized through coarse powder and fine powder pulverizer in turn, and then sieved after pulverization. The particle size of the screened shale is ≤6mm , the particle size of bauxite ≤ 4mm, the particle size of vermiculite powder ≤ 5mm, the particle size of kaolinite ≤ 6mm, the particle size of perlite ≤ 6mm;

[0039] Step 3: Weigh accordi...

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Abstract

The invention relates to the technical field of ceramsite processing, specifically to a high-strength and lightweight shale ceramsite and a preparation method thereof. The high-strength and lightweight shale ceramsite is composed of the following raw materials by mass: 5% to 10% of shale, 16% to 25% of bauxite, 3% to 7% of vermiculite, 16% to 22% of fly ash, 15% to 25% of quartz powder, 12% to 17%of kaolinite, 1% to 3% of perlite, 1% to 3% of quicklime and 9% to 14% of water-washed sand. The preparation process for the shale ceramsite provided by the invention has the following advantages: afermentation process is added before firing is performed in the prior art, so the ceramsite prepared by using the preparation process provided by the invention has excellent expansion ratio, uniform ceramsite pore size, low water-absorption rate and low bulk density, and the requirements for lightweight and strength of the ceramsite are met.

Description

technical field [0001] The invention relates to the technical field of ceramsite processing, in particular to a high-strength light shale ceramsite and a preparation method thereof. Background technique [0002] Ceramsite is a kind of inorganic light aggregate, because of its low density, high cylinder compressive strength, high porosity, high softening coefficient, good frost resistance, and excellent alkali-resistant aggregate reactivity, it is widely used in building materials, gardening , food and beverage, refractory insulation materials, chemical industry, petroleum and other fields, and its application fields are still expanding. According to the classification of raw materials, ceramsite is mainly divided into bauxite ceramsite, clay ceramsite, shale ceramsite, garbage ceramsite, coal gangue ceramsite, sludge ceramsite, river bottom mud ceramsite, fly ash ceramsite, etc. . But the bulk density of the current shale ceramsite is 300kg / m 3 It is difficult to meet the...

Claims

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Application Information

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IPC IPC(8): C04B38/08C04B33/135C04B33/04
CPCC04B33/04C04B33/1352C04B38/009C04B2235/3208C04B2235/3217C04B2235/3418C04B2235/3427C04B2235/6565C04B38/0074C04B38/0067C04B38/08Y02P40/60
Inventor 赵武军石凯张建军张红颜孟庆科
Owner 郑州德赛尔陶粒有限公司