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Granite waste rock powder ceramsite and preparation method thereof

A technology of waste rock powder and granite, which is applied in the field of building materials, can solve the problems of sintered ceramsite that have not been reported before, and achieve the effect of excellent alkali-resistant aggregate reactivity, low density and good frost resistance

Inactive Publication Date: 2017-12-08
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there are many comprehensive utilizations using granite waste rock powder as raw materials, but sintered ceramsite has never been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of granite waste rock powder ceramsite, which is composed of the following components in mass percentage: 50.0% of granite waste rock powder, 15.0% of clay tailings, 20.0% of waste porcelain powder, 10.0% of clay, and 5.0% of coal powder.

[0032] A preparation method of granite waste rock powder ceramsite comprises the following steps:

[0033] S1: First mix the ingredients according to the mass percentage of the above raw materials, and mix them evenly, then ball mill the mass ratio according to the ratio of premix: water = 1:1 to prepare the ball mill, and pass through a 300-mesh standard sieve;

[0034] S2: Then place the mixed material in a granulator to granulate to form raw meal balls with a particle size of 10-20mm;

[0035] S3: Finally, preheat at 300°C for 15 minutes, and roast at 1250°C for 10 minutes to obtain granite waste rock powder ceramsite.

[0036] The granite waste rock powder ceramsite prepared in this embodiment has a bulk density of 450kg / ...

Embodiment 2

[0038] A kind of granite waste rock powder ceramsite, which is composed of the following components in mass percentage: 63.0% of granite waste rock powder, 10.0% of clay tailings, 15.5% of waste porcelain powder, 8% of clay, and 3.5% of coal powder.

[0039] A preparation method of granite waste rock powder ceramsite comprises the following steps:

[0040] S1: First, mix the ingredients according to the mass percentage of the above raw materials, and mix them evenly, then ball mill according to the ratio of premix: water = 1:1 to prepare the ball mill, and pass through a 300-mesh standard sieve;

[0041] S2: Then place the mixed material in a granulator to granulate to form raw meal balls with a particle size of 10-20mm;

[0042] S3: Finally, preheat at 400°C for 13 minutes, and roast at 1150°C for 20 minutes to obtain granite waste rock powder ceramsite.

[0043] The granite waste rock powder ceramsite prepared in this embodiment has a bulk density of 550kg / m 3 , the appare...

Embodiment 3

[0045] A kind of granite waste rock powder ceramsite, which is composed of the following components in mass percentage: 80.0% of granite waste rock powder, 4.0% of clay tailings, 10.0% of waste porcelain powder, 5.0% of clay, and 1.0% of coal powder.

[0046] A preparation method of granite waste rock powder ceramsite comprises the following steps:

[0047] S1: First, mix the ingredients according to the mass percentage of the above raw materials, and mix them evenly, then ball mill according to the ratio of premix: water = 1:1 to prepare the ball mill, and pass through a 300-mesh standard sieve;

[0048] S2: Then place the mixed material in a granulator to granulate to form raw meal balls with a particle size of 10-20mm;

[0049]S3: Finally, preheat at 450°C for 10 minutes, and roast at 1050°C for 30 minutes to obtain granite waste rock powder ceramsite.

[0050] The granite waste rock powder ceramsite prepared in this embodiment has a bulk density of 650kg / m 3 , the appare...

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Abstract

The invention discloses granite waste rock powder ceramsite, which is prepared from the following ingredients in percentage by mass: 50.0 to 80.0 percent of granite waste rock powder, 4.0 to 15.0 percent of clay tailings, 10.0 to 20.0 percent of waste porcelain powder, 5.0 to 10.0 percent of clay and 1.0 to 5.0 percent of pulverized coal. The invention also discloses a preparation method of the granite waste rock powder ceramsite. The process is simple; the cost is low; a large amount of granite waste rock powder is consumed; the waste utilization rate is high; the performance of the prepared granite waste rock powder ceramsite is excellent; the application prospects are wide. By the process, the raw materials are directly mixed and pelletized, and are then put into a high-temperature furnace to be calcined to be prepared into the granite waste rock powder ceramsite; the formation process is simplified; the work efficiency is improved; meanwhile, the preparation method is suitable for mass production.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a granite waste rock powder ceramsite and a preparation method thereof. Background technique [0002] With the rapid development of the construction stone processing industry, my country has become the largest stone production, consumption and export country in the world. The waste stone powder produced during stone mining and processing is also increasing and piled up into mountains, causing serious environmental pollution problems. To restrict the sustainable development of the stone industry. [0003] Ceramsite is a kind of artificial light aggregate made of clay, shale, coal gangue, fly ash, etc. , agriculture, packing and filter materials and other fields. Granite waste rock powder has a high silica content and is mainly composed of minerals such as quartz, feldspar and a small amount of mica. Using granite waste rock powder to replace clay, shale an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B33/132C04B33/13
CPCC04B33/132C04B33/1324C04B38/009C04B38/0067Y02P40/60
Inventor 姜葱葱程新李国忠黄世峰
Owner UNIV OF JINAN
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