CN104591761B - A kind of calcining kiln burner prefabricated component and preparation method - Google Patents

A kind of calcining kiln burner prefabricated component and preparation method Download PDF

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Publication number
CN104591761B
CN104591761B CN201510069267.0A CN201510069267A CN104591761B CN 104591761 B CN104591761 B CN 104591761B CN 201510069267 A CN201510069267 A CN 201510069267A CN 104591761 B CN104591761 B CN 104591761B
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China
Prior art keywords
powder
parts
prefabricated component
additive
calcining kiln
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Expired - Fee Related
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CN201510069267.0A
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Chinese (zh)
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CN104591761A (en
Inventor
杜斌
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TONGNAN COUNTY CHENXING CASTING FACTORY
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TONGNAN COUNTY CHENXING CASTING FACTORY
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/34—Arrangements of heating devices

Abstract

The invention discloses a kind of calcining kiln burner prefabricated component and preparation method, this calcining kiln burner prefabricated component is by electrofused mullite, Si2Al4O4N4、Al3BC3, zirconium spinel, strontium carbonate powder, carbonization vanadium powder, alumina powder, alumina cement, composite powder, additive and liquor alumini chloridi composition.The method using gravity flow pouring shapes, and through maintenance, after drying, at high temperature carries out heat treatment.Compared with tradition castable, this product has gravity flow construction, self-defoaming, anti-strip, the features such as wearability is high, life-span length, can be in the most fire-resistant industry of various calcining kilns, lime industry, burnt ore industry, the burner prefabricated component of the calcining kiln used by metallurgy industry is more widely used.

Description

A kind of calcining kiln burner prefabricated component and preparation method
Technical field
The present invention relates to a kind of calcining kiln burner prefabricated component and preparation method, particularly relate to refractory raw material calcining industry, cement industry, lime industry, ore deposit calcining industry, the calcining kiln burner prefabricated component used by metallurgy industry and preparation method.
Background technology
Traditional burner is the most all to use balk cargo to carry out vibrating casting molding at use scene, thus extend the cycle stopping kiln, long construction period, field labor intensity are big, construction time add water many, length curing cycle, final products life-span short, thus have impact on normally producing of rotary kiln.It is short that the most existing castable product also is difficult to meet the anti-strip during burner uses, life-span, the problems such as construction quality segregation is unstable.Prefabricated component refers to change supply of material pattern: burner completes cast, maintenance and heat treatment at fire-resistant factory, then this product is moved to producer and directly uses, and the exploitation of this kind of product thoroughly solves the site operation weakness of tradition Unshaped Casting Refractories.
Summary of the invention
The purpose of the present invention is contemplated to solve product not anti-strip, thermal shock resistance is poor, the defect that life-span is short and construction quality is poor, a kind of calcining kiln burner prefabricated component and preparation method are provided, the preform product made disclosure satisfy that the anti-strip that rotary kiln burner requires, long-life, and thermal shock resistance is high, easy construction, the problem such as steady quality.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that prefabricated component is by electrofused mullite, Si2Al4O4N4、Al3BC3, zirconium spinel, strontium carbonate powder, carbonization vanadium powder, alumina powder, alumina cement, composite powder, additive and liquor alumini chloridi composition.
Electrofused mullite, Si in raw material2Al4O4N4、Al3BC3, zirconium spinel, strontium carbonate powder, carbonization vanadium powder, alumina powder, alumina cement, the parts by weight of composite powder are: electrofused mullite 15-20 part, Si2Al4O4N420-25 part, Al3BC37-12 part, zirconium spinel 20-28 part, strontium carbonate powder 1-3 part, carbonization vanadium powder 2-4 part, alumina powder 8-12 part, alumina cement 3-7 part, composite powder 0-1 part.Liquor alumini chloridi, the addition of additive account for the percentage ratio of above-mentioned gross weight respectively: liquor alumini chloridi 9%, and additive is 0.2-0.3%；Composite powder is made up of leucite powder and kaliophilite powder, its weight ratio 1:1.
Described additive is sulfonated melamine compound resin, isooctanol, 5-Sulfonic Salicylic Acid, and three's weight ratio is 2:1:1.Described liquor alumini chloridi density is 1.25 grams/cc, about PH3.5, viscosity 0.006KPa.s.
Above-mentioned each raw material is carried out dispensing in above ratio, after mix homogeneously, uses the method for gravity flow pouring to shape, through maintenance, after drying, at high temperature carry out heat treatment, obtain this burner prefabricated component.
The preparation method of the present invention is:
Step one, batch mixing and stirring, prepare raw material by proportioning, adds additive, stirs at blender, add liquor alumini chloridi after stirring, control 200 mm from flow valuve；Step 2, shaping, maintenance and be dried, shape: installed by mould, add the stirring compound that is stirred, and deadweight and surface tension by compound are shakeout；The material of excess surface is erased；Maintenance: 25 DEG C of thermostatic chambers put into by the sample good by gravity flow pouring and mould, the on inspection demoulding after hardening, natural curing 48 hours again after the demoulding；It is dried: the sample that maintenance is good carries out 110 DEG C of 24h drying and processings in electrical kiln, closes power supply and treat that it is cooled to room temperature；Step 3, heat treatment, dried sample is put in heating furnace, begins to warm to 300 DEG C according to 5 DEG C/min, then is raised to 1000 DEG C with the speed of 10 DEG C/min, and is incubated 3 hours；After end, naturally cool to room temperature, after coming out of the stove, obtain this rotary kiln prefabricated component.
The bulk density of gained prefabricated component, at 2.7g/cm3, strength at normal temperature 25MPa, wear-resisting is less than 4, and service life is more than 18 months.
The present invention has obtained a kind of anti-strip, long-life, gravity flow construction, the calcining kiln of self-defoaming burner prefabricated component.This prefabricated component is high temperature resistant, anti-strip, long-life, improve the running rate of rotary kiln industry, gravity flow pouring during construction, pore can eliminate voluntarily, it is to avoid the quality segregation that vibrating casting material produces, the shortcoming changing original bulk products, the exploitation of this kind of product thoroughly solves the site operation weakness of tradition Unshaped Casting Refractories.
Detailed description of the invention
Embodiment 1, electrofused mullite 16 parts, Si2Al4O4N425 parts, Al3BC312 parts, zirconium spinel 20 parts, 3 parts of strontium carbonate powder, carbonization vanadium powder 4 parts, alumina powder 12 parts, alumina cement 7 parts, composite powder 1 part.Add additive, after being sufficiently mixed uniformly, then add liquor alumini chloridi.Liquor alumini chloridi, the addition of additive account for the percentage ratio of above-mentioned gross weight respectively: liquor alumini chloridi 9%, and additive is 0.3%.
Embodiment 2, electrofused mullite 17 parts, Si2Al4O4N424 parts, Al3BC312 parts, zirconium spinel 20 parts, 3 parts of strontium carbonate powder, carbonization vanadium powder 4 parts, alumina powder 12 parts, alumina cement 7 parts, composite powder 1 part.Add additive, after being sufficiently mixed uniformly, then add liquor alumini chloridi.Liquor alumini chloridi, the addition of additive account for the percentage ratio of above-mentioned gross weight respectively: liquor alumini chloridi 9%, and additive is 0.2%.
Embodiment 3, electrofused mullite 18 parts, Si2Al4O4N423 parts, Al3BC312 parts, zirconium spinel 21 parts, 3 parts of strontium carbonate powder, carbonization vanadium powder 4 parts, alumina powder 12 parts, alumina cement 7 parts, composite powder 0 part.Add additive, after being sufficiently mixed uniformly, then add liquor alumini chloridi.Liquor alumini chloridi, the addition of additive account for the percentage ratio of above-mentioned gross weight respectively: liquor alumini chloridi 9%, and additive is 0.3%.
Embodiment 1,2, the follow-up preparation technology of 3 is:: being installed by mould, add the stirring compound being stirred, deadweight and surface tension by compound are shakeout；The material of excess surface is erased；Maintenance: 25 DEG C of thermostatic chambers put into by the sample good by gravity flow pouring and mould, the on inspection demoulding after hardening, natural curing 48 hours again after the demoulding；It is dried: the sample that maintenance is good carries out 110 DEG C of 24h drying and processings in electrical kiln, closes power supply and treat that it is cooled to room temperature；Step 3, heat treatment, dried sample is put in heating furnace, begins to warm to 300 DEG C according to 5 DEG C/min, then is raised to 1000 DEG C with the speed of 10 DEG C/min, and is incubated 3 hours；After end, naturally cool to room temperature, after coming out of the stove, obtain this calcining kiln kiln burner prefabricated component.

Claims (3)

1. a calcining kiln burner prefabricated component, it is characterised in that: by electrofused mullite, Si2Al4O4N4、Al3BC3, zirconium spinel, strontium carbonate powder, carbonization vanadium powder, alumina powder, alumina cement, composite powder, additive and liquor alumini chloridi composition；Wherein, electrofused mullite 16 parts, Si2Al4O4N425 parts, Al3BC312 parts, zirconium spinel 20 parts, 3 parts of strontium carbonate powder, carbonization vanadium powder 4 parts, alumina powder 12 parts, alumina cement 7 parts, composite powder 1 part;Add additive, after being sufficiently mixed uniformly, then add liquor alumini chloridi;Liquor alumini chloridi, the addition of additive account for the percentage ratio of above-mentioned gross weight respectively: liquor alumini chloridi 9%, and additive is 0.3%；Composite powder is made up of leucite powder and kaliophilite powder, its weight ratio 1:1；Additive is sulfonated melamine compound resin, isooctanol, 5-Sulfonic Salicylic Acid, and three's weight ratio is 2:1:1.
A kind of calcining kiln burner prefabricated component the most according to claim 1, it is characterised in that: described liquor alumini chloridi density is 1.25 grams/cc, pH about 3.5, viscosity 0.006KPa s.
The preparation method of a kind of calcining kiln burner prefabricated component the most according to claim 1, it is characterized in that: step one, batch mixing and stirring, raw material is prepared by proportioning, add additive, stir at blender, add liquor alumini chloridi after stirring, control 200 mm from flow valuve；Step 2, shaping, maintenance and be dried, shape: installed by mould, add the stirring compound that is stirred, and deadweight and surface tension by compound are shakeout；The material of excess surface is erased；Maintenance: 25 DEG C of thermostatic chambers put into by the sample good by gravity flow pouring and mould, the on inspection demoulding after hardening, natural curing 48 hours again after the demoulding；It is dried: the sample that maintenance is good carries out 110 DEG C of 24h drying and processings in electrical kiln, closes power supply and treat that it is cooled to room temperature；Step 3, heat treatment, dried sample is put in heating furnace, begins to warm to 300 DEG C according to 5 DEG C/min, then is raised to 1000 DEG C with the speed of 10 DEG C/min, and is incubated 3 hours；After end, naturally cool to room temperature, after coming out of the stove, obtain this calcining kiln burner prefabricated component.
CN201510069267.0A 2015-02-11 2015-02-11 A kind of calcining kiln burner prefabricated component and preparation method Expired - Fee Related CN104591761B (en)

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CN201610385058.1A CN107244922A (en) 2015-02-11 2015-02-11 A kind of calcining kiln burner prefabricated component and preparation method
CN201510069267.0A CN104591761B (en) 2015-02-11 2015-02-11 A kind of calcining kiln burner prefabricated component and preparation method
CN201610385059.6A CN106045532A (en) 2015-02-11 2015-02-11 Combustor prefabricated part for calcining kiln and preparing method

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CN201610385059.6A Withdrawn CN106045532A (en) 2015-02-11 2015-02-11 Combustor prefabricated part for calcining kiln and preparing method
CN201510069267.0A Expired - Fee Related CN104591761B (en) 2015-02-11 2015-02-11 A kind of calcining kiln burner prefabricated component and preparation method

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CN101962299A (en) * 2009-07-23 2011-02-02 宝山钢铁股份有限公司 Porous medium burner material and preparation method thereof
CN102531642A (en) * 2010-12-30 2012-07-04 王秉吉 Brick for ceramic burner and manufacturing method
CN102503487B (en) * 2011-11-08 2013-05-01 山国强 Prefabricated member for combustor and preparation method for prefabricated member

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