CN105418095B - A kind of lightweight refractory for glass smelting kiln of low heat conduction - Google Patents

A kind of lightweight refractory for glass smelting kiln of low heat conduction Download PDF

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CN105418095B
CN105418095B CN201510864761.6A CN201510864761A CN105418095B CN 105418095 B CN105418095 B CN 105418095B CN 201510864761 A CN201510864761 A CN 201510864761A CN 105418095 B CN105418095 B CN 105418095B
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parts
mesh
lightweight
hull ash
rice hull
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CN105418095A (en
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王柏成
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Zhejiang Huzhou Fuziling Refractory Group Co Ltd
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Zhejiang Huzhou Fuziling Refractory Group Co Ltd
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Abstract

The invention discloses a kind of lightweight refractory for glass smelting kiln, it uses the waste after crop burning as raw material, asepsis environment-protecting.Lightweight refractory for glass smelting kiln of the present invention has the advantages that small thermal conductivity factor, lightweight, intensity height, good thermal shock, refractoriness are high (1800 DEG C of >).Replace common large-scale clay brick with glass melter with lightweight refractory for glass smelting kiln of the present invention, kiln body weight can be mitigated significantly, weight can be mitigated up to 55~68%.

Description

A kind of lightweight refractory for glass smelting kiln of low heat conduction
Technical field
The invention belongs to technical field of refractory materials, and in particular to a kind of glass melter light-weight refractory material of low heat conduction Material.
Background technology
Industrial Stoves are the main energy consumption equipments in industrial production, and its power saving is a current important topic.With Exemplified by float glass Industrial Stoves, current float glass Industrial Stoves typically all use large-scale clay brick masonry, and brick body product is close Degree generally both greater than 2.40g/cm3, thermal conductivity factor is more than 1.00W/m k (hot 1000 DEG C of face), with the glass industry of the brick masonry Kiln thermal capacity is big, and rapid heat dissipation, heat-insulating property and thermal shock resistance are poor, so causing glass furnace high energy consumption, the thermal efficiency is low, temperature Degree is whard to control, and service life is short.
Prior art has had some researchs to lightweight refractory for glass smelting kiln, but there are still thermal conductivity factor Too high the shortcomings of.
The present invention is intended to provide a kind of lightweight refractory for glass smelting kiln of low heat conduction, its performance has been obtained significantly Improve, lightweight refractory for glass smelting kiln of the present invention has small thermal conductivity factor, lightweight, intensity height, good thermal shock, fire resisting The advantages of degree high (1800 DEG C of >).Common large-scale clay brick is replaced to use with lightweight refractory for glass smelting kiln of the present invention On glass melter, kiln body weight can be mitigated significantly, weight can be mitigated up to 55~68%.
The content of the invention
The present invention for shortcoming of the prior art there is provided a kind of lightweight refractory for glass smelting kiln of low heat conduction, its Performance is greatly improved, and lightweight refractory for glass smelting kiln of the present invention has small thermal conductivity factor, lightweight, intensity The advantages of height, good thermal shock, refractoriness high (1800 DEG C of >).Replaced commonly with lightweight refractory for glass smelting kiln of the present invention Large-scale clay brick with glass melter, kiln body weight can be mitigated significantly, weight can be mitigated up to 55~68%.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of production method of the lightweight refractory for glass smelting kiln of low heat conduction:
(1)Prepare rice hull ash:
Rice hull ash is made after rice husk is fully burned at 680 DEG C, levigate, mistake 150 mesh and 250 mesh respectively are carried out with ball mill Sieve;
By the rice hull ash of the rice hull ash of 150 mesh fineness and 250 mesh fineness using mass ratio as 1:0.5 is well mixed;
(2)Raw material is mixed:
According to parts by weight, 20-25 parts of rice hull ash, 20 parts of micro-pore mullite lightweight aggregates, 5-8 parts of pure calcium aluminate cements, 2 are taken Part sepiolite powder, 3.5-5.5 parts of mica powders, 2 part of 325 mesh spinelle fine powder, 5 part of 500 mesh spinelle fine powder, 2-3 parts of particle diameters are 10 μm of crystalline flake graphites, 0.5 part of particle diameter is 20 μm of carborundum, 3 parts of aquamaine stone flours, 0.1 part of calgon;
(3)Prepare:
Stirred by compositing formula dispensing, plus suitable quantity of water, then pour into a mould vibration moulding, in 150 DEG C of conditions after maintenance Lower drying, then in tunnel cave high temperature two-step sintering:
800 DEG C of processing 20min;
Then heat to 1900 DEG C of processing 25-29min;
Finally cool down, cut, lightweight refractory for glass smelting kiln is made in polishing.
Present inventors have surprisingly found that, with reference to special formula(Including concrete component, ratio and particle diameter)With it is technologic Optimization, by substantial amounts of experiment, has had been surprisingly found that under special formula and technique, and can obtain that performance increases substantially is low The lightweight refractory for glass smelting kiln of heat conduction.
The present invention is advantageous in that:
Lightweight refractory for glass smelting kiln of the present invention have small thermal conductivity factor, lightweight, intensity height, good thermal shock, The advantages of refractoriness height (1800 DEG C of >).Common large-scale clay brick material is replaced with lightweight refractory for glass smelting kiln of the present invention Material can be mitigated kiln body weight significantly, can be mitigated weight up to 55~68% with glass melter.
Embodiment
Embodiment 1:
A kind of production method of the lightweight refractory for glass smelting kiln of low heat conduction:
(1)Prepare rice hull ash:
Rice hull ash is made after rice husk is fully burned at 680 DEG C, levigate, mistake 150 mesh and 250 mesh respectively are carried out with ball mill Sieve;
By the rice hull ash of the rice hull ash of 150 mesh fineness and 250 mesh fineness using mass ratio as 1:0.5 is well mixed;
(2)Raw material is mixed:
According to parts by weight, 20 parts of rice hull ash, 20 parts of micro-pore mullite lightweight aggregates, 8 parts of pure calcium aluminate cements, 2 parts of seas are taken Afrodite powder, 3.5 parts of mica powders, 2 part of 325 mesh spinelle fine powder, 5 part of 500 mesh spinelle fine powder, 3 parts of particle diameters are 10 μm of scale stones Ink, 0.5 part of particle diameter is 20 μm of carborundum, 3 parts of aquamaine stone flours, 0.1 part of calgon;
(3)Prepare:
Stirred by compositing formula dispensing, plus suitable quantity of water, then pour into a mould vibration moulding, in 150 DEG C of conditions after maintenance Lower drying, then in tunnel cave high temperature two-step sintering:
800 DEG C of processing 20min;
Then heat to 1900 DEG C of processing 25min;
Finally cool down, cut, lightweight refractory for glass smelting kiln is made in polishing.
There is lightweight refractory for glass smelting kiln made from the present embodiment thermal conductivity factor to be 0.59W/m k (hot faces 1000 DEG C), lightweight, intensity is high, 1100 DEG C-water cooling thermal shock number is more than 8 times, the advantages of refractoriness height (1800 DEG C).
Common large-scale clay brick is replaced to be used in glass with lightweight refractory for glass smelting kiln made from the present embodiment On glass melting furnaces, kiln body weight can be mitigated significantly, weight can be mitigated up to 68%.
Embodiment 2:
A kind of production method of the lightweight refractory for glass smelting kiln of low heat conduction:
(1)Prepare rice hull ash:
Rice hull ash is made after rice husk is fully burned at 680 DEG C, levigate, mistake 150 mesh and 250 mesh respectively are carried out with ball mill Sieve;
By the rice hull ash of the rice hull ash of 150 mesh fineness and 250 mesh fineness using mass ratio as 1:0.5 is well mixed;
(2)Raw material is mixed:
According to parts by weight, 20 parts of rice hull ash, 20 parts of micro-pore mullite lightweight aggregates, 5 parts of pure calcium aluminate cements, 2 parts of seas are taken Afrodite powder, 5.5 parts of mica powders, 2 part of 325 mesh spinelle fine powder, 5 part of 500 mesh spinelle fine powder, 2 parts of particle diameters are 10 μm of scale stones Ink, 0.5 part of particle diameter is 20 μm of carborundum, 3 parts of aquamaine stone flours, 0.1 part of calgon;
(3)Prepare:
Stirred by compositing formula dispensing, plus suitable quantity of water, then pour into a mould vibration moulding, in 150 DEG C of conditions after maintenance Lower drying, then in tunnel cave high temperature two-step sintering:
800 DEG C of processing 20min;
Then heat to 1900 DEG C of processing 29min;
Finally cool down, cut, lightweight refractory for glass smelting kiln is made in polishing.
There is lightweight refractory for glass smelting kiln made from the present embodiment thermal conductivity factor to be 0.39W/m k (hot faces 1000 DEG C), lightweight, intensity is high, 1100 DEG C-water cooling thermal shock number is more than 21 times, the advantages of refractoriness height (1800 DEG C).
Common large-scale clay brick is replaced to be used in glass with lightweight refractory for glass smelting kiln made from the present embodiment On glass melting furnaces, kiln body weight can be mitigated significantly, weight can be mitigated up to 55%.
Embodiment 3:
A kind of production method of the lightweight refractory for glass smelting kiln of low heat conduction:
(1)Prepare rice hull ash:
Rice hull ash is made after rice husk is fully burned at 680 DEG C, levigate, mistake 150 mesh and 250 mesh respectively are carried out with ball mill Sieve;
By the rice hull ash of the rice hull ash of 150 mesh fineness and 250 mesh fineness using mass ratio as 1:0.5 is well mixed;
(2)Raw material is mixed:
According to parts by weight, 21 parts of rice hull ash, 20 parts of micro-pore mullite lightweight aggregates, 7 parts of pure calcium aluminate cements, 2 parts of seas are taken Afrodite powder, 4.5 parts of mica powders, 2 part of 325 mesh spinelle fine powder, 5 part of 500 mesh spinelle fine powder, 3 parts of particle diameters are 10 μm of scale stones Ink, 0.5 part of particle diameter is 20 μm of carborundum, 3 parts of aquamaine stone flours, 0.1 part of calgon;
(3)Prepare:
Stirred by compositing formula dispensing, plus suitable quantity of water, then pour into a mould vibration moulding, in 150 DEG C of conditions after maintenance Lower drying, then in tunnel cave high temperature two-step sintering:
800 DEG C of processing 20min;
Then heat to 1900 DEG C of processing 26min;
Finally cool down, cut, lightweight refractory for glass smelting kiln is made in polishing.
There is lightweight refractory for glass smelting kiln made from the present embodiment thermal conductivity factor to be 0.41W/m k (hot faces 1000 DEG C), lightweight, intensity is high, 1100 DEG C-water cooling thermal shock number is more than 10 times, the advantages of refractoriness height (1800 DEG C).
Common large-scale clay brick is replaced to be used in glass with lightweight refractory for glass smelting kiln made from the present embodiment On glass melting furnaces, kiln body weight can be mitigated significantly, weight can be mitigated up to 67%.
Embodiment 4:
A kind of production method of the lightweight refractory for glass smelting kiln of low heat conduction:
(1)Prepare rice hull ash:
Rice hull ash is made after rice husk is fully burned at 680 DEG C, levigate, mistake 150 mesh and 250 mesh respectively are carried out with ball mill Sieve;
By the rice hull ash of the rice hull ash of 150 mesh fineness and 250 mesh fineness using mass ratio as 1:0.5 is well mixed;
(2)Raw material is mixed:
According to parts by weight, 24 parts of rice hull ash, 20 parts of micro-pore mullite lightweight aggregates, 6 parts of pure calcium aluminate cements, 2 parts of seas are taken Afrodite powder, 3.8 parts of mica powders, 2 part of 325 mesh spinelle fine powder, 5 part of 500 mesh spinelle fine powder, 2 parts of particle diameters are 10 μm of scale stones Ink, 0.5 part of particle diameter is 20 μm of carborundum, 3 parts of aquamaine stone flours, 0.1 part of calgon;
(3)Prepare:
Stirred by compositing formula dispensing, plus suitable quantity of water, then pour into a mould vibration moulding, in 150 DEG C of conditions after maintenance Lower drying, then in tunnel cave high temperature two-step sintering:
800 DEG C of processing 20min;
Then heat to 1900 DEG C of processing 28min;
Finally cool down, cut, lightweight refractory for glass smelting kiln is made in polishing.
There is lightweight refractory for glass smelting kiln made from the present embodiment thermal conductivity factor to be 0.55W/m k (hot faces 1000 DEG C), lightweight, intensity is high, 1100 DEG C-water cooling thermal shock number is more than 19 times, the advantages of refractoriness height (1800 DEG C).
Common large-scale clay brick is replaced to be used in glass with lightweight refractory for glass smelting kiln made from the present embodiment On glass melting furnaces, kiln body weight can be mitigated significantly, weight can be mitigated up to 58%.
Embodiment 5:
A kind of production method of the lightweight refractory for glass smelting kiln of low heat conduction:
(1)Prepare rice hull ash:
Rice hull ash is made after rice husk is fully burned at 680 DEG C, levigate, mistake 150 mesh and 250 mesh respectively are carried out with ball mill Sieve;
By the rice hull ash of the rice hull ash of 150 mesh fineness and 250 mesh fineness using mass ratio as 1:0.5 is well mixed;
(2)Raw material is mixed:
According to parts by weight, 22 parts of rice hull ash, 20 parts of micro-pore mullite lightweight aggregates, 8 parts of pure calcium aluminate cements, 2 parts of seas are taken Afrodite powder, 5.1 parts of mica powders, 2 part of 325 mesh spinelle fine powder, 5 part of 500 mesh spinelle fine powder, 3 parts of particle diameters are 10 μm of scale stones Ink, 0.5 part of particle diameter is 20 μm of carborundum, 3 parts of aquamaine stone flours, 0.1 part of calgon;
(3)Prepare:
Stirred by compositing formula dispensing, plus suitable quantity of water, then pour into a mould vibration moulding, in 150 DEG C of conditions after maintenance Lower drying, then in tunnel cave high temperature two-step sintering:
800 DEG C of processing 20min;
Then heat to 1900 DEG C of processing 27min;
Finally cool down, cut, lightweight refractory for glass smelting kiln is made in polishing.
There is lightweight refractory for glass smelting kiln made from the present embodiment thermal conductivity factor to be 0.45W/m k (hot faces 1000 DEG C), lightweight, intensity is high, 1100 DEG C-water cooling thermal shock number is more than 13 times, the advantages of refractoriness height (1800 DEG C).
Common large-scale clay brick is replaced to be used in glass with lightweight refractory for glass smelting kiln made from the present embodiment On glass melting furnaces, kiln body weight can be mitigated significantly, weight can be mitigated up to 60%.
The contrast experiment of embodiment 6:
The production method of lightweight refractory for glass smelting kiln:
(1)Prepare rice hull ash:
Rice hull ash is made after rice husk is fully burned at 680 DEG C, levigate, 150 mesh sieves excessively are carried out with ball mill;
(2)Raw material is mixed:
According to parts by weight, 36 parts of rice hull ash, 20 parts of micro-pore mullite lightweight aggregates, 10 parts of pure calcium aluminate cements, 2 parts of seas are taken Afrodite powder, 2 parts of mica powders, 7 part of 325 mesh spinelle fine powder, 2 parts of particle diameters are 10 μm of crystalline flake graphites, and 0.5 part of particle diameter is 20 μm of carbon SiClx, 3 parts of aquamaine stone flours, 0.1 part of calgon;
(3)Prepare:
Stirred by compositing formula dispensing, plus suitable quantity of water, then pour into a mould vibration moulding, in 150 DEG C of conditions after maintenance Lower drying, then sinters in the step of tunnel cave high temperature one, finally cools down, and cuts, and glass melter light-weight refractory material is made in polishing Material.
There is lightweight refractory for glass smelting kiln made from the present embodiment thermal conductivity factor to be 0.88W/m k (hot faces 1000 DEG C), lightweight, intensity is high, 1100 DEG C-water cooling thermal shock number is less than 5 times, the advantages of refractoriness height (1600 DEG C).
Common large-scale clay brick is replaced to be used in glass with lightweight refractory for glass smelting kiln made from the present embodiment On glass melting furnaces, kiln body weight can be mitigated significantly, weight can be mitigated up to 38%.
As can be seen here, the invention provides a kind of lightweight refractory for glass smelting kiln of low heat conduction, its performance is obtained It is greatly improved, lightweight refractory for glass smelting kiln of the present invention has small thermal conductivity factor, lightweight, intensity height, anti-thermal shock The advantages of property good, refractoriness high (1800 DEG C of >).Replace commonly large-scale viscous with lightweight refractory for glass smelting kiln of the present invention Cob brick material can mitigate kiln body weight significantly with glass melter, can mitigate weight up to 63%.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.

Claims (2)

1. a kind of production method of the lightweight refractory for glass smelting kiln of low heat conduction, it is characterised in that step is as follows:
(1)Prepare rice hull ash:
Rice hull ash is made after rice husk is fully burned at 680 DEG C, levigate, mistake 150 mesh and 250 mesh sieves respectively are carried out with ball mill;
By the rice hull ash of the rice hull ash of 150 mesh fineness and 250 mesh fineness using mass ratio as 1:0.5 is well mixed;
(2)Raw material is mixed:
According to parts by weight, 20-25 parts of rice hull ash, 20 parts of micro-pore mullite lightweight aggregates, 5-8 parts of pure calcium aluminate cements, 2 parts of seas are taken Afrodite powder, 3.5-5.5 parts of mica powders, 2 part of 325 mesh spinelle fine powder, 5 part of 500 mesh spinelle fine powder, 2-3 parts of particle diameters are 10 μm Crystalline flake graphite, 0.5 part of particle diameter is 20 μm of carborundum, 3 parts of aquamaine stone flours, 0.1 part of calgon;
(3)Prepare:
Stirred by compositing formula dispensing, plus suitable quantity of water, then pour into a mould vibration moulding, dried after maintenance under the conditions of 150 DEG C It is dry, then in tunnel cave high temperature two-step sintering, finally cool down, cut, lightweight refractory for glass smelting kiln is made in polishing;
In tunnel cave high temperature two-step sintering:
800 DEG C of processing 20min;
Then heat to 1900 DEG C of processing 25-29min.
2. the lightweight refractory for glass smelting kiln for the low heat conduction that the production method production described in claim 1 is obtained.
CN201510864761.6A 2015-12-01 2015-12-01 A kind of lightweight refractory for glass smelting kiln of low heat conduction Active CN105418095B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107759196A (en) * 2017-10-16 2018-03-06 东台市悦兴耐火材料有限公司 Heat-insulated mullite brick of novel environment-friendly and preparation method thereof
CN108191418A (en) * 2018-03-02 2018-06-22 合肥铭佑高温技术有限公司 A kind of corrosion-resistant thermal insulation fire-resistant brick of glass furnace
CN109553428B (en) * 2019-01-25 2021-11-23 江苏苏冶新材料科技有限公司 Ceramic fiber refractory castable and preparation method thereof

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CN1029704C (en) * 1989-10-28 1995-09-06 江西省建材工业科研设计院 High strength light weight rice hull ash insulation brick and its producing method
CN101768006B (en) * 2010-01-13 2012-06-27 河南中原特种耐火材料有限公司 Lightweight refractory for glass smelting kiln
CN102690092B (en) * 2012-06-04 2013-08-14 同济大学 Low-temperature rice hull ash doped cement-base shrinkage-free grouting material and using method thereof

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