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A preparation process of low-cost high-strength ceramic floor tiles

A high-strength, low-cost technology, applied in the field of ceramic floor tile manufacturing, can solve the problems of restricting the reuse of steel slag and the influence of free calcium oxide, and achieve the effects of saving energy, reducing dependence and alleviating scarcity.

Inactive Publication Date: 2015-09-02
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the physical and chemical properties of steel slag, the reuse of steel slag is restricted. For example, the phosphorus in slag limits the amount of metallurgy returned, and the free calcium oxide in slag is greatly affected in road engineering.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A manufacturing process of low-cost high-strength ceramic floor tiles, comprising the following steps:

[0043] (1) Take 30% of steel slag, 50% of Bayer process red mud and 20% of talc according to weight percentage, and set aside;

[0044] (2) The steel slag is roughly crushed into particles below 10mm through the crusher;

[0045] (3) The steel slag particles crushed in step (2) and the Bayer process red mud and talc obtained in step (1) were ball-milled for 8 hours in a ball mill respectively. The magnetic bar goes back and forth in the steel slag after passing through the ductile graphite to remove iron and ferric oxide in the steel slag for many times, and then passes through a 250-mesh sieve;

[0046] (4), put the raw materials sieved in step (3) into a three-dimensional mixer and mix them for 10 hours to obtain a mixture for later use;

[0047] (5) Add water to the mixture, and use a hydraulic press to make a green body under a pressure of 25MPa, and th...

Embodiment 2

[0060] A manufacturing process of low-cost high-strength ceramic floor tiles, comprising the following steps:

[0061] (1) Take 40% of steel slag, 40% of Bayer process red mud and 20% of talc according to weight percentage, and set aside;

[0062] (2) The steel slag is roughly crushed into particles below 10mm through the crusher;

[0063] (3) The steel slag particles crushed in step (2) and the Bayer process red mud and talc obtained in step (1) were ball-milled for 8 hours in a ball mill respectively. The magnetic bar goes back and forth in the steel slag after passing through the ductile graphite to remove iron and ferric oxide in the steel slag for many times, and then passes through a 250-mesh sieve;

[0064] (4), put the raw materials sieved in step (3) into a three-dimensional mixer and mix them for 10 hours to obtain a mixture for later use;

[0065] (5) Add water to the mixture, and use a hydraulic press to make a green body under a pressure of 25MPa, and then...

Embodiment 3

[0077] A manufacturing process of low-cost high-strength ceramic floor tiles, comprising the following steps:

[0078] (1) Take 35% of steel slag, 40% of Bayer process red mud and 25% of talc according to the weight percentage, and set aside;

[0079] (2) The steel slag is roughly crushed into particles below 10mm through the crusher;

[0080] (3) The steel slag particles crushed in step (2) and the Bayer process red mud and talc obtained in step (1) were ball-milled for 8 hours in a ball mill respectively. The magnetic bar goes back and forth in the steel slag after passing through the ductile graphite to remove iron and ferric oxide in the steel slag for many times, and then passes through a 250-mesh sieve;

[0081] (4), put the raw materials sieved in step (3) into a three-dimensional mixer and mix them for 10 hours to obtain a mixture for later use;

[0082] (5) Add water to the mixture, and use a hydraulic press to make a green body under a pressure of 25MPa, an...

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Abstract

The invention relates to a preparation technology of a low-cost high-strength ceramic floor tile, which comprises the following steps: 1)taking 30-40% of steel slag, 40-55% of bayer process red mud and 20-30% of talcum according to weight percentage for standby; 2)crudely crushing the steel slag into the particles with size below 10mm; 3)respectively performing ball milling on the steel slag particles and the bayer process red mud by a ball mill for 8 hours, and sieving through a sieve with 250 meshes; 4)placing the sieved raw material in a three-dimensional stereo feed mixer for mixing for 10 hours; and 5)adding water in a mixture, and preparing a green compact by an oil hydraulic press under 25MPa pressure, placing the dried green compact in a muffle furnace, and roasting to obtain the ceramic floor tile. The ceramic floor tile provided by the invention takes red mud and steel slag as main raw materials, and the red mud and steel slag substitute the rear kaolin with high cost and high quality, so that dependence of ceramic industry in our country to kaolin is reduced, and crisis of high-quality kaolin scarcity due to rapid development of industrial can be alleviated.

Description

technical field [0001] The invention relates to the technical field of manufacturing ceramic floor tiles, in particular to a manufacturing process of low-cost and high-strength ceramic floor tiles. Background technique [0002] In my country, the production rate of steel slag is about 10% of the crude steel, and the annual output of crude steel in my country is close to 800 million tons. A large amount of steel slag is discarded as waste, which not only occupies fertile land, but also pollutes the environment. At present, the comprehensive utilization of steel slag is mainly in the following fields: return to metallurgy for reuse; as cement; as road construction and backfill engineering materials; as fertilizer and acidic soil improver; for wastewater treatment, etc. However, due to the physical and chemical properties of steel slag, the reuse of steel slag is restricted. For example, the phosphorus in slag limits the amount of metallurgy returned, and the free calcium oxide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/00C04B35/622
Inventor 王维张鹏飞李海涛谷万铎闫明明申杰
Owner HENAN UNIV OF SCI & TECH
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