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Method for preparing ceramic plate from solid waste at low temperature

A ceramic plate and low-temperature technology, which is applied in the field of comprehensive utilization of industrial solid waste, can solve the problems of high energy consumption and high carbon emissions, and achieve the effects of excellent performance, resource saving and energy consumption reduction

Active Publication Date: 2021-11-02
大连环球矿产股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the above-mentioned prior art, the present invention optimizes the design of the process formula and prepares the terracotta plate at a low temperature, which solves the problems of high energy consumption and high carbon emissions when the terracotta plate is fired at a high temperature; Carbide slag, fly ash, wollastonite tailings) replace natural minerals as raw materials, which meet the requirements of resource conservation and sustainable development concepts; in addition, CaSiO 3 -TiO 2 Structural composite particles are nucleating enhancers, which can produce ceramic plate products with controllable phase and excellent performance, especially significantly improved mechanical properties, contributing technical support to the development of green building materials

Method used

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  • Method for preparing ceramic plate from solid waste at low temperature
  • Method for preparing ceramic plate from solid waste at low temperature

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Experimental program
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Effect test

Embodiment 1

[0035] Take 790kg of blast furnace slag and 210kg of calcium carbide slag with a particle size of less than 3mm and a moisture content of less than 1%, mix them uniformly, and grind them into a powder with a particle size of 65um to obtain the main raw material. The mass content of CaO in the main raw material after grinding is 34.39%, SiO 2 The mass content is 36.68%, Al 2 o 3 The mass content is 13.73%, CaO / SiO 2 The molar ratio was 1.0.

[0036] The wollastonite mineral fiber and titanium dioxide powder were mechanochemically synthesized with CaSiO 3 -TiO 2 A composite particle nucleation enhancer with a structure, the particle size of the wollastonite mineral fiber is 40um, the aspect ratio is 15:1, the particle size of the titanium dioxide powder is 2um; the process includes: the wollastonite mineral The fiber and titanium dioxide powder are matched at a mass ratio of 7:3, and the particle size matching between wollastonite mineral fiber and titanium dioxide powder i...

Embodiment 2

[0042] Take 1000kg of blast furnace slag and 266kg of calcium carbide slag with a particle size of less than 3mm and a moisture content of less than 1%, mix them uniformly, and grind them into a powder with a particle size of 75um to obtain the main raw material. The mass content of CaO in the main raw material after grinding is 34.54%, SiO 2 The mass content is 36.71%, Al 2 o 3 The mass content is 13.28%, CaO / SiO 2 The molar ratio was 1.0.

[0043] The wollastonite mineral fiber and titanium dioxide powder were mechanochemically synthesized with CaSiO 3 -TiO 2 A composite particle nucleation enhancer with a structure, the particle size of the wollastonite mineral fiber is 50um, the aspect ratio is 12:1, the particle size of the titanium dioxide powder is 5um; the wollastonite mineral fiber and titanium dioxide powder The compounding mass ratio is 7:3, the rotational speed of composite grinding is 1400r / min, the reaction time is 40min, the ball-material ratio is 5:1, and ...

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Abstract

The invention discloses a carbon emission reduction method for preparing a ceramic plate at low temperature by using four industrial solid wastes including blast furnace water slag, carbide slag, fly ash and wollastonite tailings, and belongs to the technical field of energy conservation and emission reduction of novel building materials and comprehensive utilization of industrial solid wastes; and a green building material production and application technology is developed, and the requirement for establishing a sustainable development concept is met. CaSiO3-TiO2 structure composite particles are used as a nucleation reinforcing agent; through the synergistic effect of a multi-component composite fluxing agent, a ceramic plate product which is controllable in phase, excellent in performance and particularly remarkably improved in mechanical property is prepared, and a technical support is contributed to development of green building materials. The method is based on the transformation and upgrading of energy-saving and environment-friendly technology, replaces natural minerals with industrial solid wastes as raw materials, continuously improves the utilization efficiency of resources, promotes the absorption of solid wastes, realizes the technical innovation of comprehensive utilization of resources and clean production, is beneficial to the promotion of ecological civilization construction, and makes a positive contribution to the national overall realization of a carbon peak-reaching predetermined target and a carbon neutralization willing.

Description

technical field [0001] The invention relates to a method for reducing carbon emissions by using industrial solid wastes to prepare ceramic plates at low temperature, and belongs to the technical fields of energy-saving and emission-reduction technologies for new building materials and comprehensive utilization of industrial solid wastes. Background technique [0002] In order to protect and improve the ecological environment, promote sustainable economic and social development, and prevent solid waste from polluting the environment, the state advocates the comprehensive utilization of solid waste. General industrial solid waste includes: tailings, fly ash, slag, etc. Our country consumes about 2 billion tons of various non-metallic mineral products every year. At the same time, the waste of resources is serious. The recovery rate of mineral processing in most enterprises is only 40-50%, and the utilization rate of resources is only 20-25%. A large amount of tailings seriousl...

Claims

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Application Information

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IPC IPC(8): C04B33/13C04B33/132C04B33/135C04B33/138C04B33/32C04B35/80
CPCC04B33/138C04B33/132C04B33/1352C04B33/131C04B33/1328C04B33/323C04B35/80C04B2235/5232C04B2235/3208C04B2235/3418C04B2235/3217C04B2235/3206C04B2235/3201C04B2235/3272C04B2235/3267C04B2235/3232Y02P40/60
Inventor 张续坤贾一鸣张延大
Owner 大连环球矿产股份有限公司
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