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A method of using waste slag to prepare environment-friendly ceramic vitrified bricks

A ceramic vitrified brick and waste slag technology, which is applied in the fields of solid waste removal and waste treatment, can solve the problems of unfavorable pollution control and haze reduction, complicated preparation process, and single surface decoration, so as to enrich the surface effect and improve the microstructure , the effect of reducing pollution

Active Publication Date: 2015-11-25
广东净雨环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process is complicated, and the production process still belongs to the traditional ceramic method, which consumes a lot of energy and pollutes a lot
[0008] At present, using secondary resources such as industrial waste or waste materials, adopting sintering methods with low energy consumption and low pollution, optimizing the process and conditions, improving the microstructure, and making ceramic vitrified bricks obtain better mechanical properties have become the main research trends. In order to achieve this goal, different waste residues or waste materials are introduced into the product formula and the preparation process is optimized, which improves the mechanical properties of the insulation brick to a certain extent. However, it still cannot fundamentally solve the energy consumption in the traditional ceramic preparation method. Disadvantages such as high pollution, large pollution, and single surface decoration are extremely unfavorable to the current pollution control and smog reduction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Put the used raw materials into a ball mill for dry grinding, use alumina ball stone as the grinding medium, control the mass ratio of the ball and the raw material to 2:1, grind for 2 hours and pass through a 325 mesh sieve to obtain red pages Rock waste, fly ash waste residue, waste glass, dolomite;

[0034] (2) Get sieved red shale waste, fly ash waste residue, waste glass, dolomite and alumina powder (Al in alumina powder 2 o 3 Content≥98%, particle size is 3~5μm), by mass parts red shale waste: fly ash waste slag: waste glass: dolomite: alumina powder = 20:60:10:7:3 ingredients, the prepared Put the materials together into a ball mill for dry grinding, use alumina balls as the grinding medium, control the mass ratio of the balls and raw materials to 2:1, grind for 1 hour, add 6wt% binder (PVA), and dry mix And cross 40 mesh sieves to form a mixture;

[0035] (3) The mixture is placed in a pressure forming mold, pressed and formed under a pressure of 30MPa, a...

Embodiment 2

[0040] (1) Put the used raw materials into a ball mill for dry grinding, use alumina ball stone as the grinding medium, control the mass ratio of the ball and the raw material to be 3:1, and pass through a 325 mesh sieve after grinding for 0.5h respectively to obtain red Shale waste, lead-zinc mine tailings, waste glass, dolomite;

[0041] (2) Get sieved red shale waste, lead-zinc ore tailings, waste glass, dolomite and alumina powder (Al in alumina powder 2 o 3 Content ≥ 98%, particle size 3-5μm), by mass parts red shale waste: lead-zinc ore tailings: waste glass: dolomite: alumina powder = 26:55:11:5:3 ingredients, will be prepared Put all the materials together into a ball mill for dry grinding, use alumina ball stone as the grinding medium, control the mass ratio of the ball and the raw material to 3:1, grind for 0.5h, and add 6wt% binder (PVA), dry grind Mix well and pass through a 40-mesh sieve to form a mixture;

[0042] (3) The mixture is placed in a pressure formin...

Embodiment 3

[0047] (1) Put the used raw materials into a ball mill for dry grinding respectively, use alumina ball stone as the grinding medium, control the mass ratio of the ball and the raw material to be 2.3:1, and pass through a 325 mesh sieve after grinding for 1.8 hours respectively to obtain red Shale waste, phosphate slag, waste glass, dolomite;

[0048] (2) Get sieved red shale waste, phosphate rock slag, waste glass, dolomite and alumina powder (Al in alumina powder 2 o 3 Content ≥ 98%, particle size is 3 ~ 5μm), according to parts by mass of red shale waste: phosphate slag: waste glass: dolomite: alumina powder = 24:50:12:10:4 ingredients, the prepared material Put them together into a ball mill for dry grinding, use alumina balls as the grinding medium, control the mass ratio of balls and raw materials to 2.3:1, grind for 0.8h, add 6wt% binder (PVA), and dry mix And cross 40 mesh sieves to form a mixture;

[0049] (3) The mixture is placed in a pressure forming mold, presse...

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Abstract

The invention discloses a method for preparing an environment-friendly ceramic vitrified brick by using waste slags. The environment-friendly ceramic vitrified brick is obtained by applying a new sintering method and a new decoration technology to a conventional ceramic product on the basis of introducing a great number of waste slags and optimizing a conventional technological process, and is prepared by performing once molding and twice laser short-time sintering according to a dry method; meanwhile, ink-jet printing or 3D (three-dimensional) printing are applied to the surface decoration of a heat preservation brick, thus better enriching the surface effects of the heat preservation brick. The environment-friendly ceramic vitrified brick disclosed by the invention is environment-friendly, clean and pollution-free in production, has the water absorption rate approximate to 0, has the breaking strength of 55-75MPa, and is very excellent in vitrification effect; moreover, the environment-friendly ceramic vitrified brick has decoration effects, and is convenient in construction and safe and reliable in use.

Description

technical field [0001] The invention belongs to the field of environment-friendly functional building materials, and in particular relates to a method for preparing environment-friendly ceramic vitrified bricks by utilizing waste slag. Background technique [0002] Today, the environmental protection and health of building ceramics has received unprecedented attention. The decoration of people's home space is becoming diversified, personalized and fashionable, healthy and noble, and the materials are environmentally friendly, non-radiation, easy to clean, antibacterial, anti-fouling and anti-corrosion, green and multi-functional are the goals people pursue, and new materials, The continuous use of new technology, new equipment and new technology has promoted the development of building ceramic products, and is developing towards a higher, faster and better direction. Personalization, personalization, humanization, artistry, naturalization and multi-functional development tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00C04B35/185C04B35/64
CPCY02W30/20
Inventor 陈平殷海荣
Owner 广东净雨环保科技有限公司
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