CN101805196B - Preparation method of quick-drying anti-explosion wear-resistant casting material - Google Patents

Preparation method of quick-drying anti-explosion wear-resistant casting material Download PDF

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Publication number
CN101805196B
CN101805196B CN2010101287195A CN201010128719A CN101805196B CN 101805196 B CN101805196 B CN 101805196B CN 2010101287195 A CN2010101287195 A CN 2010101287195A CN 201010128719 A CN201010128719 A CN 201010128719A CN 101805196 B CN101805196 B CN 101805196B
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quick
drying
fine
casting
resistant casting
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CN2010101287195A
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CN101805196A (en
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蒋志忠
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蒋志忠
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Abstract

The invention discloses a preparation method of a quick-drying anti-explosion wear-resistant casting material, which comprises the following steps: (1) uniformly mixing raw materials; (2) stirring the mixed raw materials, adding No.725 high-alumina cement to be stirred after being uniformly stirred, then, adding tap water, and next, adopting a casting method or a coating method for lining materials at the channel bottom of a ramming iron channel; and (3) curing the casting materials lined at the channel bottom of the ramming iron channel at the normal temperature for 30 hours, then, completing demolding, raising the temperature to 120 DEG C at the speed of 30 DEG C/h to be maintained for 4 hours, raising the temperature to 450 DEG C at the speed of 45 DEG C/h to be maintained for 5 hours, and obtaining the quick-drying anti-explosion wear-resistant casting material. The casting material prepared by the invention has the advantages of long service life and simple maintenance, and is applicable to high heat environment.

Description

A kind of preparation method of quick-drying anti-explosion wear-resistant casting material
Technical field
The present invention relates to a kind of preparation method of quick-drying anti-explosion wear-resistant casting material.
Background technology
It is 1000m that still there are a large amount of volumes in China 3With the medium and small blast furnace of the iron notch that places an order, present single iron notch medium and small blast furnace iron runner generally adopts the Al of pitch or resin-bonded 2O 3-SiC-C matter exempts to toast ramming iron runner liner.But generally just ditch basal surface one deck is closely knit relatively for the used refractory materials of ramming iron runner liner; And below the top layer and ditch group position is all very loose; Not anti-washing away; Ubiquity is too short work-ing life, and labor strength is too big when safeguarding at every turn, under the environment of high heat, causes a lot of unsafe factors easily.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of preparation method of quick-drying anti-explosion wear-resistant casting material, and the mould material long service life of preparing is safeguarded simply, adapts to high thermal environment.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of preparation method of quick-drying anti-explosion wear-resistant casting material is characterized in that may further comprise the steps:
(1) the raw material uniform mixing that will form by fine and close fused corundom, fine and close fused corundom fine powder, agglutinant, super-fine powder, water reducer and detonation suppressor;
(2) mixed raw materials is added in the forced mixer stir, the back that stirs adds high-alumina cement 725 #, stir, add tap water again, adopt casting or streak method in 40 minutes, they to be lining in ramming iron runner bottom of trench then;
(3) will be lining in the mould material of ramming iron runner bottom of trench, ambient cure was accomplished the demoulding after 30 hours, was warming up to 120 ℃ with the speed of 30 ℃/h, kept 4 hours, was warming up to 450 ℃ with the speed of 45 ℃/h, kept 5 hours, can obtain quick-drying anti-explosion wear-resistant casting material.
As preferably, the per-cent that said fine and close fused corundom, fine and close fused corundom fine powder, agglutinant, super-fine powder, water reducer and detonation suppressor account for the raw material gross weight is respectively 55%, 36.5%, 3.5%, 4.5%, 0.3%, 0.2%.
As preferably, in the said fine and close fused corundom granularity be 0~1mm account for 20%, granularity be 1~3mm account for 30%, granularity be 3~5mm account for 15%, granularity be 5~10mm account for 35%.
As preferably, said fine and close fused corundom fine powder density accounts for 75% of fine powder total amount less than 0.044mm person, and density person between 0.044 and 0.088 accounts for 25% of fine powder total amount.
As preferably, high-alumina cement 725 #Add-on and raw material weight ratio are 4: 3, and tap water add-on and raw material weight ratio are 2: 3.
As preferably, said agglutinant is wilkinite.Said super-fine powder is a wollastonite powder.Said water reducer is a tripoly phosphate sodium STPP.Said detonation suppressor is a metallic aluminium powder.
At first, this invention adopts low cement to combine Al 2O 3-SiC-C matter mould material comes instead of resins to combine, and has avoided because of the resin baking and the flue dust and the toxic gas that produce in heating up, and environment and staff are impacted; Secondly, this invention adds the modification knock-sedative dope of novel development, and this additive has soon firmly, baking and explosion-proof soon, and original safety anti-explosive temperature is improved greatly; At last, this invention adds an amount of super-fine powder and dispersion agent in batching, strengthened the flowability of mould material, makes that its compactness is better, intensity is higher.Through above-mentioned a series of improvement, make this invention have and do the demoulding and quick baking soon, prevent premium propertiess such as explosion, and rise appreciably work-ing life, greatly reduce working strength of workers, improved Working environment.And should invention construct simply, be widely used in 1000m 3With the iron notch medium and small blast furnace that places an order.Therefore this invention has good value for applications.
Embodiment
Below be embodiments of the invention, a kind of preparation method of quick-drying anti-explosion wear-resistant casting material may further comprise the steps:
(1) the raw material uniform mixing that will form by fine and close fused corundom, fine and close fused corundom fine powder, agglutinant, super-fine powder, water reducer and detonation suppressor;
(2) mixed raw materials is added in the forced mixer stir, the back that stirs adds high-alumina cement 725 #, stir, add tap water again, adopt casting or streak method in 40 minutes, they to be lining in ramming iron runner bottom of trench then;
(3) will be lining in the mould material of ramming iron runner bottom of trench, ambient cure was accomplished the demoulding after 30 hours, was warming up to 120 ℃ with the speed of 30 ℃/h, kept 4 hours, was warming up to 450 ℃ with the speed of 45 ℃/h, kept 5 hours, can obtain quick-drying anti-explosion wear-resistant casting material.
Wherein, said fine and close fused corundom, fine and close fused corundom fine powder, agglutinant, super-fine powder, water reducer and the detonation suppressor per-cent that accounts for the raw material gross weight is respectively 55%, 36.5%, 3.5%, 4.5%, 0.3%, 0.2%.In the said fine and close fused corundom granularity be 0~1mm account for 20%, granularity be 1~3mm account for 30%, granularity be 3~5mm account for 15%, granularity be 5~10mm account for 35%.Said fine and close fused corundom fine powder density accounts for 75% of fine powder total amount less than 0.044mm person, and density person between 0.044 and 0.088 accounts for 25% of fine powder total amount.High-alumina cement 725 #Add-on and raw material weight ratio are 4: 3, and tap water add-on and raw material weight ratio are 2: 3.Said agglutinant is wilkinite.Said super-fine powder is a wollastonite powder.Said water reducer is a tripoly phosphate sodium STPP.Said detonation suppressor is a metallic aluminium powder.

Claims (6)

1. the preparation method of a quick-drying anti-explosion wear-resistant casting material is characterized in that may further comprise the steps:
(1) the raw material uniform mixing that will form by fine and close fused corundom, fine and close fused corundom fine powder, agglutinant, super-fine powder, water reducer and detonation suppressor;
(2) mixed raw materials is added in the forced mixer stir, the back that stirs adds high-alumina cement 725 #, stir, add tap water again, adopt casting or streak method in 40 minutes, they to be lining in ramming iron runner bottom of trench then;
(3) will be lining in the mould material of ramming iron runner bottom of trench, ambient cure was accomplished the demoulding after 30 hours, was warming up to 120 ℃ with the speed of 30 ℃/h, kept 4 hours, was warming up to 450 ℃ with the speed of 45 ℃/h, kept 5 hours, can obtain quick-drying anti-explosion wear-resistant casting material;
The per-cent that said fine and close fused corundom, fine and close fused corundom fine powder, agglutinant, super-fine powder, water reducer and detonation suppressor account for the raw material gross weight is respectively 55%, 36.5%, 3.5%, 4.5%, 0.3%, 0.2%; In the said fine and close fused corundom granularity be 0~1mm account for 20%; Granularity be 1~3mm account for 30%; Granularity be 3~5mm account for 15%; Granularity be 5~10mm account for 35%, said fine and close fused corundom powder particle size accounts for 75% of fine powder total amount less than 0.044mm person, granularity person between 0.044mm and 0.088mm accounts for 25% of fine powder total amount.
2. the preparation method of quick-drying anti-explosion wear-resistant casting material according to claim 1 is characterized in that: high-alumina cement 725 #Add-on and raw material weight ratio are 4: 3, and tap water add-on and raw material weight ratio are 2: 3.
3. the preparation method of quick-drying anti-explosion wear-resistant casting material according to claim 1, it is characterized in that: said agglutinant is wilkinite.
4. the preparation method of quick-drying anti-explosion wear-resistant casting material according to claim 1, it is characterized in that: said super-fine powder is a wollastonite powder.
5. the preparation method of quick-drying anti-explosion wear-resistant casting material according to claim 1, it is characterized in that: said water reducer is a tripoly phosphate sodium STPP.
6. the preparation method of quick-drying anti-explosion wear-resistant casting material according to claim 1, it is characterized in that: said detonation suppressor is a metallic aluminium powder.
CN2010101287195A 2010-03-19 2010-03-19 Preparation method of quick-drying anti-explosion wear-resistant casting material Expired - Fee Related CN101805196B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103253944B (en) * 2013-04-25 2015-09-23 安阳工学院 A kind of preparation method of Explosionproof low cement castable
CN104030703A (en) * 2014-05-28 2014-09-10 长兴北辰耐火阻燃材料有限公司 Preparation method of cement gum for intermediate frequency furnace
CN104030701A (en) * 2014-05-28 2014-09-10 长兴北辰耐火阻燃材料有限公司 Dry-type compound lining material for intermediate frequency furnace
CN108424129B (en) * 2018-04-27 2020-12-18 武汉科技大学 Heat-insulating wear-resistant refractory castable and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1746135A (en) * 2005-07-19 2006-03-15 中国地质大学(北京) Fire-proof pouring material of iron tap channel of blast-furnace and production thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1746135A (en) * 2005-07-19 2006-03-15 中国地质大学(北京) Fire-proof pouring material of iron tap channel of blast-furnace and production thereof

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