Architectural ceramic prepared from industrial solid waste through dry method and process for preparing architectural ceramic

A technology for solid waste residue and building ceramics, which is applied in the production, application, and clay products of ceramic materials, etc., can solve the problems of poor product function, difficult control of production process, low efficiency, etc. performance, and the effect of reducing firing shrinkage

Active Publication Date: 2014-02-12
FOSHAN OCEANO CERAMICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a formula and process for preparing functional architectural ceramic products using industrial solid waste residue dry meth

Method used

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  • Architectural ceramic prepared from industrial solid waste through dry method and process for preparing architectural ceramic
  • Architectural ceramic prepared from industrial solid waste through dry method and process for preparing architectural ceramic
  • Architectural ceramic prepared from industrial solid waste through dry method and process for preparing architectural ceramic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In terms of mass percentage, 35% of ceramic polishing waste is pretreated, dried and passed through a 100-mesh sieve. Mix 63% of ceramic raw materials and 3% of hydroxymethyl cellulose together, and wet ball mill until the slurry particle size is 250 mesh sieve and 0.8~1.2%; the composition of ceramic raw materials is 20% kaolin, 10% Yili Stone, 5% bentonite, 5% talc, 60% potassium albite feldspar. The ball-milled slurry is sieved to remove iron; the slurry is spray-dried. The spray-dried powder and ceramic polishing waste enter the mixer for dry mixing, and pass through a 20-mesh sieve after mixing. The sieved powder is conveyed to the press for molding, the pressed bricks enter the drying kiln for drying, and the dried bricks enter the roller kiln for firing at 1200 °C. The bulk density of the fired product is less than 900kg / m 3 , the compressive strength is greater than 15MPa, it has the function of light heat preservation and heat insulation, the thermal conduct...

Embodiment 2

[0055] In terms of mass percentage, 40% steel slag is pretreated and passed through a 100-mesh sieve after drying. Mix 59% ceramic raw materials and 1% sodium silicate together, and wet ball mill until the slurry particle size is 250 mesh sieve and 0.8~1.2%; the composition of ceramic raw materials is 22% Bailaiyang soil, 14% red Laiyang soil, 13% high density soil, 16% Mengyin feldspar, 28% Laiwu feldspar and 7% talc. The ball-milled slurry is sieved to remove iron; the slurry is spray-dried. The spray-dried powder and ceramic polishing waste are sent to a powder mill for dry mixing, and then passed through a 20-mesh sieve after mixing. The sieved powder is conveyed to the press for molding, the pressed bricks enter the drying kiln for drying, and the dried bricks enter the roller kiln for firing at 1185 °C. The main crystal phase of the fired product is quartz, anorthite and diopside. The product has high strength and wear resistance, and the flexural strength can reach 55...

Embodiment 3

[0057] In terms of mass percentage, 20% of ceramic polishing waste slag, 20% of steel slag, and 10% of aluminum slag are pretreated, and passed through a 100-mesh sieve after drying. Mix 48% of ceramic raw materials and 2% gum arabic together, and wet ball mill until the slurry particle size is 0.8~1.2% of the 250 mesh sieve; wherein the ceramic raw materials are composed of 18% pyrophyllite, 20 % kaolin, 43% potassium feldspar, 4% nepheline, 10% Guangdong white clay, 5% talc. The ball-milled slurry is sieved to remove iron; the slurry is spray-dried. The spray-dried powder is dry-mixed with ceramic polishing waste slag and steel slag, and is pulverized and mixed by a pulverizer, and passed through a 20-mesh sieve after mixing. The sieved powder is conveyed to the press for molding, the pressed bricks enter the drying kiln for drying, and the dried bricks enter the roller kiln for firing at 1220 °C.

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Abstract

The invention discloses architectural ceramic prepared from industrial solid waste through a dry method and a process for preparing the architectural ceramic. The architectural ceramic comprises the following components in percentage by mass: 30-60% of solid waste, 40-70% of ceramic raw material and 1-3% of ceramic additive, wherein the ceramic raw material is selected from one or a composition of multiple of clay raw material, feldspar raw material or talc, and the ceramic additive is one or a combination of multiple of sodium tripolyphosphate, sodium silicate, ammonium chloride, ammonium citrate, sodium humate, sodium lignin sulfonate sodium, ethylenediamine tetraacetic acid disodium and edetic acid. After being pretreated, the granules of the solid waste are fine and are mixed evenly in a dry mixing manner and a spray drying manner and are directly used for pressing of green bricks or stored in a bin for standby, so that the ball milling energy consumption and the peptization cost are reduced, the humidification pelleting and fluidized bed drying procedures are omitted, the formula can be quickly adjusted according to the functional characteristics of the architectural ceramic, the process is simple and convenient to control, and the architectural ceramic has such good properties as heat preservation, thermal insulation and high strength.

Description

[0001] technical field [0002] The invention belongs to the field of preparation of architectural ceramic products, and in particular relates to a formula and method for preparing functional architectural ceramics by using industrial solid waste dry method. Background technique [0003] At present, the effective and reasonable utilization of solid waste has always been a problem that our government and related industries attach great importance to. With the acceleration of industrialization and urbanization, the consumption of resources in my country's industrial field will further increase, and the environmental problems caused by resource exploitation and utilization and the problem of resource supply security caused by excessive reliance on resource imports will become increasingly prominent. It will face more severe resource and environmental constraints. my country's urbanization requires more than 16 billion tons of non-metallic mineral resources every year. Making fu...

Claims

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Application Information

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IPC IPC(8): C04B33/132C04B33/138C04B33/22
CPCY02P40/60
Inventor 苍大强郑树龙李宇刘俊荣赵立华张缇周园园
Owner FOSHAN OCEANO CERAMICS
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