CN106220207A

CN106220207A - A kind of calcining kiln burner prefabricated component and preparation method

Info

Publication number: CN106220207A
Application number: CN201610732085.1A
Authority: CN
Inventors: 汤炼芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-02-11
Filing date: 2015-02-11
Publication date: 2016-12-14
Also published as: CN106220205A; CN104591763B; CN106396691A; CN104591763A; CN106365645A

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

The application is the divisional application of Application No. 201510071591.6.

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 row 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 extends and stop The cycle of kiln, long construction period, field labor intensity are big, construction time add water many, length curing cycle, final products life-span short, because of And have impact on the normal production of rotary kiln.The most existing castable product also is difficult to meet the anti-stripping during burner uses Fall, the life-span short, the problems such as construction quality segregation is unstable.Prefabricated component refers to change supply of material pattern: burner is complete at fire-resistant factory Becoming cast, maintenance and heat treatment, then this product is moved to producer and directly use, the exploitation of this kind of product thoroughly solves tradition The site operation weakness of Unshaped Casting Refractories.

Summary of the invention

The purpose of the present invention is contemplated to solve product not anti-strip, and thermal shock resistance is poor, and the life-span is short and construction quality is poor Defect, it is provided that a kind of calcining kiln burner prefabricated component and preparation method, the preform product made disclosure satisfy that rotary kiln fires The anti-strip that burner requires, the long-life, the problems such as thermal shock resistance is high, easy construction, steady quality.

For solve above-mentioned technical problem, the present invention adopt the following technical scheme that prefabricated component by hercynite, Si₂Al₄O₄N₄、Al₃BC₃, zirconium spinel, strontium carbonate powder, carbonization vanadium powder, alumina powder, alumina cement, composite powder, additive Form with liquor alumini chloridi.

Hercynite, Si in raw material₂Al₄O₄N₄、Al₃BC₃, zirconium spinel, strontium carbonate powder, carbonization vanadium powder, aluminium oxide is micro- Powder, alumina cement, the parts by weight of composite powder are: hercynite 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%, 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 supporting Protect, 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, stir After add liquor alumini chloridi, control 200 mm from flow valuve；Step 2, shaping, maintenance and be dried, shape: by mould pacify Installing, add the stirring compound being stirred, deadweight and surface tension by compound are shakeout；The material of excess surface is erased；Support Protect: 25 DEG C of thermostatic chambers put into by the sample good by gravity flow pouring and mould, on inspection the demoulding after hardening, natural curing 48 again after the demoulding Hour；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 Rapid three, heat treatment, dried sample is put in heating furnace, begins to warm to 300 DEG C according to 5 DEG C/min, then with 10 DEG C/min Speed be raised to 1000 DEG C, and be incubated 3 hours；After end, naturally cool to room temperature, obtain this rotary kiln after coming out of the stove with prefabricated Part.

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 exists 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, the long-life, improves the running rate of rotary kiln industry, gravity flow pouring during construction, and pore is permissible Eliminate voluntarily, it is to avoid the quality segregation that vibrating casting material produces, the shortcoming changing original bulk products, the opening of this kind of product Send out the site operation weakness thoroughly solving tradition Unshaped Casting Refractories.

Detailed description of the invention

Embodiment 1, hercynite 16 parts, Si₂Al₄O₄N₄25 parts, Al₃BC₃12 parts, zirconium spinel 20 parts, strontium carbonate powder 3 Part, carbonization vanadium powder 4 parts, alumina powder 12 parts, alumina cement 7 parts, composite powder 1 part.Add additive, be sufficiently mixed uniformly After, 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%, additive is 0.3%.

Embodiment 2, hercynite 17 parts, Si₂Al₄O₄N₄24 parts, Al₃BC₃12 parts, zirconium spinel 20 parts, strontium carbonate powder 3 Part, carbonization vanadium powder 4 parts, alumina powder 12 parts, alumina cement 7 parts, composite powder 1 part.Add additive, be sufficiently mixed uniformly After, 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%, additive is 0.2%.

Embodiment 3, hercynite 18 parts, Si₂Al₄O₄N₄23 parts, Al₃BC₃12 parts, zirconium spinel 21 parts, strontium carbonate powder 3 Part, carbonization vanadium powder 4 parts, alumina powder 12 parts, alumina cement 7 parts, composite powder 0 part.Add additive, be sufficiently mixed uniformly After, 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%, additive is 0.3%.

Embodiment 1,2, the follow-up preparation technology of 3 is:: mould is installed, adds the stirring compound being stirred, by mixed Deadweight and the surface tension of closing material are shakeout；The material of excess surface is erased；Maintenance: the sample good by gravity flow pouring and mould put into 25 DEG C thermostatic chamber, the on inspection demoulding after hardening, natural curing 48 hours again after the demoulding；It is dried: the sample that maintenance is good enters in electrical kiln 110 DEG C of 24h drying and processings of row, close power supply and treat that it is cooled to room temperature；Step 3, heat treatment, heating put into by dried sample In stove, begin to warm to 300 DEG C according to 5 DEG C/min, then be raised to 1000 DEG C with the speed of 10 DEG C/min, and be incubated 3 hours；Terminate After, naturally cool to room temperature, after coming out of the stove, obtain this calcining kiln kiln burner prefabricated component.

Claims

1. a calcining kiln burner prefabricated component, it is characterised in that: by hercynite, Si₂Al₄O₄N₄、Al₃BC₃, zirconium point brilliant Stone, strontium carbonate powder, carbonization vanadium powder, alumina powder, alumina cement, composite powder, additive and liquor alumini chloridi composition；Wherein, Hercynite 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, additional The percentage ratio of the most above-mentioned gross weight of addition of agent is: liquor alumini chloridi 9%, and additive is 0.2-0.3%；Composite powder is by white pomegranate Stone powder and kaliophilite powder composition, its weight ratio 1:1；Additive is sulfonated melamine compound resin, isooctanol, 5-sulfonic acid bigcatkin willow Acid, 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, about PH3.5, viscosity 0.006KPa.s.

The preparation method of a kind of calcining kiln burner prefabricated component the most according to claim 1, it is characterised in that: step One, batch mixing and stirring, prepares raw material by proportioning, adds additive, stirs at blender, add after stirring Liquor alumini chloridi, controls 200 mm from flow valuve；Step 2, shaping, maintenance and be dried, shape: mould is installed, add The stirring compound being stirred, deadweight and surface tension by compound are shakeout；The material of excess surface is erased；Maintenance: will gravity flow 25 DEG C of thermostatic chambers put into by the sample poured into a mould and mould, on inspection the demoulding after hardening, natural curing 48 hours again after the demoulding；Dry Dry: the sample that maintenance is good carries out 110 DEG C of 24h drying and processings in electrical kiln, close power supply and treat that it is cooled to room temperature；Step 3, heat Processing, dried sample is put in heating furnace, begins to warm to 300 DEG C according to 5 DEG C/min, then the speed liter with 10 DEG C/min To 1000 DEG C, and it is incubated 3 hours；After end, naturally cool to room temperature, obtain this calcining kiln burner after coming out of the stove prefabricated Part.