Economical and environment-friendly cordierite-mullite kiln furniture composite material and manufacturing method thereof

A mullite kiln and composite material technology, which is applied in the field of economical and environmentally friendly cordierite-mullite kiln furniture composite materials and its production, can solve the problems of low firing rate of synthetic materials, large amount of waste, large fuel, etc. Achieve the effects of increased apparent porosity, small bulk density, and low energy consumption

Inactive Publication Date: 2016-07-27
福建省德化县创捷窑具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the kiln furniture used to support fired products in the kiln, it is required to have better thermal shock resistance and low energy consumption. Cordierite-mullite materials are used as high-grade materials because of their low expansion coefficient and strong high temperature resistance. Kiln furniture materials, but due to the high cost of cordierite and mullite materials and the low firing rate of synthetic materials, the production cost of cordierite-mullite kiln furniture is high, and the development is limited; The bulk density of some cordierite-mullite kiln furniture materials is 1.75-2.15g / cm 3 , the weight of the product is large, and the heat absorption is large, which has a great impact on the production of raw materials and the fuel consumed in the kiln.
[0003] In order to solve the above problems, the invention patent application publication number CN103524123A discloses a light cordierite-mullite kiln furniture material prepared from bentonite tailings, which uses bentonite tailings, cordierite-mullite kiln furniture waste , sillimanite, chlorite, low-sodium alumina, light mullite, wood powder, and cellulose; this light cordierite-mullite kiln furniture material uses cordierite-mullite waste Carry out kiln furniture production, but the waste utilization rate in the raw material of light weight cordierite-mullite kiln furniture material is only 15-25%, and also need to increase 15-25% new light weight mullite material, its production cost and product quality are subject to further optimization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0029] Use economical and environmentally friendly cordierite-mullite kiln furniture composite materials to make pillars. The solid composition and percentage content are: waste cordierite-mullite clinker 26%, sawdust powder 11%, andalusite 8%, Washed ball clay 27%, calcined alumina 5%, raw talc 12%, magnesium powder 7%, sodium carboxymethyl cellulose 0.4%, calcium lignosulfonate 3.6%.

[0030] A method for making economical and environmentally friendly cordierite-mullite kiln furniture composite materials. The above-mentioned economical and environmentally friendly cordierite-mullite kiln furniture composite materials are prepared. The specific steps are as follows:

[0031] Step 1, mixing materials, according to the components of economical and environmentally friendly cordierite-mullite kiln furniture composite materials, put the raw materials into the mixer and stir for 8 minutes, then put the raw material mixture into the wheel mill and add water for rolling 16 minutes, t...

specific Embodiment 2

[0036] Use economical and environment-friendly cordierite-mullite kiln furniture composite materials to make firing brackets, and its solid composition and percentage content are: waste cordierite-mullite clinker 31%, sawdust powder 18%, andalusite 6 %, washed ball clay 22%, calcined alumina 6%, raw talc 8%, magnesium powder 5%, sodium carboxymethyl cellulose 0.5%, calcium lignosulfonate 3.5%.

[0037] A method for manufacturing a low-energy cordierite-mullite kiln firing support, the specific steps are as follows:

[0038] Step 1, mixing materials, according to the components of economical and environmentally friendly cordierite-mullite kiln furniture composite materials, put the raw materials into the mixer and stir for 7 minutes, then put the raw material mixture into the wheel mill and add water for rolling 17 minutes, the amount of water added was 10% of the raw material mixture weight;

[0039] Step 2, trapped material, put the mixed material obtained in step 1 into the...

specific Embodiment 3

[0043] Use low-energy cordierite-mullite materials to make thin plates, and its solid composition and percentage content are: waste cordierite-mullite clinker 37%, sawdust powder 22%, andalusite 7%, washed ball clay 16% , calcined alumina 4%, raw talc 5%, magnesium powder 6%, sodium carboxymethylcellulose 0.6%, calcium lignosulfonate 2.4%.

[0044] A method for manufacturing a low-energy cordierite-mullite thin plate, the specific steps are as follows:

[0045] Step 1, mixing materials, according to the components of economical and environmentally friendly cordierite-mullite kiln furniture composite materials, put the raw materials into the mixer and stir for 8 minutes, then put the raw material mixture into the wheel mill and add water for rolling In 18 minutes, the amount of water added was 11% of the raw material mixture weight;

[0046] Step 2, trapped material, put the mixed material obtained in step 1 into the material box and store it at room temperature, and the trapp...

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Abstract

The invention relates to the field of kiln furniture materials, in particular to a cordierite-mullite kiln furniture composite material and a manufacturing method thereof. The solid substance of the composite material is composed of waste cordierite-mullite grogs, saw powder, andalusite, washed ball clay, calcined alumina, raw talc, magnesium powder, sodium carboxymethylcellulose and calcium lignosulphonate. The utilization rate of waste cordierite-mullite grogs reaches 25-40%. Through overall adjustment of the raw materials and the manufacturing method, the composite material is small in volume density and weight, the apparent porosity of an internally formed gap structure is increased, so that environment-friendly, economical and low-energy purposes are realized, and the composite material has the same or even higher quality as kiln furniture available in the market currently.

Description

technical field [0001] The invention relates to the field of kiln furniture materials, in particular to an economical and environment-friendly cordierite-mullite kiln furniture composite material and a manufacturing method thereof. Background technique [0002] For the kiln furniture used to support fired products in the kiln, it is required to have better thermal shock resistance and low energy consumption. Cordierite-mullite materials are used as high-grade materials because of their low expansion coefficient and strong high temperature resistance. Kiln furniture materials, but due to the high cost of cordierite and mullite materials and the low firing rate of synthetic materials, the production cost of cordierite-mullite kiln furniture is high, and the development is limited; The bulk density of some cordierite-mullite kiln furniture materials is 1.75-2.15g / cm 3 , The weight of the product is large, and the heat absorption is large, which consumes a lot of fuel for the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/195C04B35/185C04B35/622
CPCC04B35/195C04B35/185C04B35/622C04B2235/3217C04B2235/349C04B2235/401C04B2235/48
Inventor 曾碧寅郭振华
Owner 福建省德化县创捷窑具有限公司
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