CN108863416A - A kind of castable material for aluminum melting furnace and preparation method thereof - Google Patents
A kind of castable material for aluminum melting furnace and preparation method thereof Download PDFInfo
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- CN108863416A CN108863416A CN201810966606.9A CN201810966606A CN108863416A CN 108863416 A CN108863416 A CN 108863416A CN 201810966606 A CN201810966606 A CN 201810966606A CN 108863416 A CN108863416 A CN 108863416A
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- melting furnace
- aluminum melting
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- castable material
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- 239000000463 material Substances 0.000 title claims abstract description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 27
- 238000002844 melting Methods 0.000 title claims abstract description 27
- 230000008018 melting Effects 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 27
- LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 claims abstract description 25
- 229920002581 Glucomannan Polymers 0.000 claims abstract description 25
- 229920002752 Konjac Polymers 0.000 claims abstract description 25
- 229940046240 glucomannan Drugs 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000008367 deionised water Substances 0.000 claims abstract description 21
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 21
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004927 clay Substances 0.000 claims abstract description 15
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 9
- WCASXYBKJHWFMY-UHFFFAOYSA-N crotyl alcohol Chemical compound CC=CCO WCASXYBKJHWFMY-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010451 perlite Substances 0.000 claims abstract description 9
- 235000019362 perlite Nutrition 0.000 claims abstract description 9
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 9
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 238000002156 mixing Methods 0.000 claims description 28
- 150000001875 compounds Chemical class 0.000 claims description 20
- 210000001161 mammalian embryo Anatomy 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 239000012065 filter cake Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 11
- 238000001354 calcination Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 1
- 235000021168 barbecue Nutrition 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract
The present invention relates to castables, specifically disclose a kind of castable material for aluminum melting furnace, and raw material includes by weight：45-58 parts of flint clay, 13-25 parts of calcined bauxite in powder, 11-19 parts of alumina powder, 5-10 parts of konjaku glucomannan, 3-5.5 parts of diatomite, 120-200 parts of deionized water, 6-13 parts of cement, 3-11 parts of silicon ash, 5-11 parts of citric acid, 2-5 parts of accelerator for hardening, 1-3 parts of methyl allyl alcohol polyoxyethylene ether, 1-2.5 parts of expanded perlite.The invention also discloses the preparation methods of above-mentioned castable material for aluminum melting furnace.The castable that the present invention obtains has excellent explosion-proof performance.
Description
Technical field
The present invention relates to castables, and in particular to a kind of castable material for aluminum melting furnace and preparation method thereof.
Background technique
Castable refractory (also known as high temperature resistant castable) is a kind of granular made of fire resisting/high temperature resistant substance and powdery material
Material, and a certain amount of bonding agent is added and moisture collectively constitutes.Its mobility with higher, be suitable for constructed with pouring procedure, and
It is hardenable unshape refractory without heating.It generally pours and builds up in the method for being poured, shaking or make firm by ramming in use site
Prefabricated component use can also be made in type.Castable refractory is the principal item of unshape refractory.But existing aluminium melting furnace is used
Castable often explosion-proof performance is not high, it is difficult to meet the needs of market.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of castable material for aluminum melting furnace and its preparation sides
Method.The castable that the present invention obtains has excellent explosion-proof performance.
A kind of castable material for aluminum melting furnace proposed by the present invention, raw material include by weight：45-58 parts of flint clay, alumina
13-25 parts of powder, 11-19 parts of alumina powder, 5-10 parts of konjaku glucomannan, 3-5.5 parts of diatomite, deionized water 120-200
Part, 6-13 parts of cement, 3-11 parts of silicon ash, 5-11 parts of citric acid, 2-5 parts of accelerator for hardening, 1-3 parts of methyl allyl alcohol polyoxyethylene ether,
1-2.5 parts of expanded perlite.
Preferably, the particle group of the flint clay becomes：Partial size 5-3mm account for 20%, partial size 3-1mm account for 30%, grain
Diameter 1-0mm's accounts for 50%.
Preferably, the particle group of the calcined bauxite in powder becomes：Partial size 100-200 purpose accounts for 75%, and partial size 700-800 purpose accounts for
25%.
Preferably, the accelerator for hardening is made of sodium hydroxide solution and sodium aluminate solution, and sodium hydroxide and meta-aluminic acid
The mass ratio of sodium is 1：2.5-4.5.
The present invention also provides a kind of preparation methods of castable material for aluminum melting furnace, include the following steps：
S1, the parts by weight are pressed, konjaku glucomannan is uniformly mixed with diatomite, addition deionized water, water-bath,
It filters, is ground up, sieved after filter cake is dried, obtains explosion-proof compound；
S2, the parts by weight are pressed, explosion-proof compound is mixed with surplus stock, first break process 4-5h then grinds 6-
7h obtains just mixing；
S3,250-400 parts of water are added into first mixing, successively after convection current mixing, diffusion mixing and shear-mixed
To wet mixture；
S4, wet mixture is processed into embryo material by mold, then embryo material is dried, calcined, obtain castable.
Preferably, in S1, by the parts by weight, konjaku glucomannan is uniformly mixed with diatomite, deionized water is added,
Water-bath 35-50min at 500-600r/min, 45-65 DEG C is filtered, and ground 300-500 mesh, obtains after filter cake is dried
To explosion-proof compound.
Preferably, in S4, drying temperature is 700-900 DEG C, drying time 4-7h.
Preferably, in S4, calcination temperature is 1500-2000 DEG C, calcination time 7-10h.
Raw material of the invention includes flint clay, calcined bauxite in powder, alumina powder, konjaku glucomannan, diatomite, deionization
Water, cement, silicon ash, citric acid, accelerator for hardening, methyl allyl alcohol polyoxyethylene ether, expanded perlite, each materials compatibility is good, matches
Cooperation can assign the good basic property of the present invention after using, and the present invention is during preparation, by konjaku glucomannan with
Diatomite is stirred to react in deionized water, since the aldehyde radical on konjaku glucomannan surface and the hydroxyl on diatomite surface are sent out
Raw cross-linking reaction obtains the compound of double reticular structures, can effectively improve intensity and mechanical property of the invention, in addition,
During present invention barbecue, as the temperature rises, konjaku glucomannan can melted by heat or burning, formed fine narrow
Long stomata, improves gas permeability, alleviates internal stress, and since konjaku glucomannan fusing is very fast, melt stickiness is lower,
And then aqueous vapor channel can be quickly opened, the appearance of bulging and the problem that bursts is avoided, explosion-proof effect is significantly optimized, improves
The service life of present invention entirety.Test proves that compared to the prior art, explosion-proof performance of the invention improves 21-28%.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of castable material for aluminum melting furnace, raw material include by weight：45 parts of flint clay, 25 parts of calcined bauxite in powder, aluminium oxide are micro-
11 parts of powder, 3 parts of diatomite, 200 parts of deionized water, 6 parts of cement, 11 parts of silicon ash, 5 parts of citric acid, promotees 10 parts of konjaku glucomannan
Hard 5 parts of agent, 1 part of methyl allyl alcohol polyoxyethylene ether, 2.5 parts of expanded perlite.
The preparation method of the castable material for aluminum melting furnace, includes the following steps：
S1, the parts by weight are pressed, konjaku glucomannan is uniformly mixed with diatomite, addition deionized water, water-bath,
It filters, is ground up, sieved after filter cake is dried, obtains explosion-proof compound；
S2, the parts by weight are pressed, explosion-proof compound is mixed with surplus stock, first break process 4h then grinds 7h, obtains
To first mixing；
S3,250 parts of water are added into first mixing, are successively obtained after convection current mixing, diffusion mixing and shear-mixed wet
Mixture；
S4, wet mixture is processed into embryo material by mold, then embryo material is dried, calcined, obtain castable.
Embodiment 2
A kind of castable material for aluminum melting furnace, raw material include by weight：58 parts of flint clay, 13 parts of calcined bauxite in powder, aluminium oxide are micro-
19 parts of powder, 5 parts of konjaku glucomannan, 5.5 parts of diatomite, 120 parts of deionized water, 13 parts of cement, 3 parts of silicon ash, 11 parts of citric acid,
2 parts of accelerator for hardening, 3 parts of methyl allyl alcohol polyoxyethylene ether, 1 part of expanded perlite；
Wherein, the particle group of the flint clay becomes：Partial size 5-3mm account for 20%, partial size 3-1mm account for 30%, partial size
1-0mm's accounts for 50%.
The preparation method of the castable material for aluminum melting furnace, includes the following steps：
S1, the parts by weight are pressed, konjaku glucomannan is uniformly mixed with diatomite, addition deionized water, water-bath,
It filters, is ground up, sieved after filter cake is dried, obtains explosion-proof compound；
S2, the parts by weight are pressed, explosion-proof compound is mixed with surplus stock, first break process 5h then grinds 6h, obtains
To first mixing；
S3,400 parts of water are added into first mixing, are successively obtained after convection current mixing, diffusion mixing and shear-mixed wet
Mixture；
S4, wet mixture is processed into embryo material by mold, then embryo material is dried, calcined, obtain castable.
Embodiment 3
A kind of castable material for aluminum melting furnace, raw material include by weight：50 parts of flint clay, 20 parts of calcined bauxite in powder, aluminium oxide are micro-
15 parts of powder, 4 parts of diatomite, 160 parts of deionized water, 9 parts of cement, 6 parts of silicon ash, 8 parts of citric acid, promotees firmly 7 parts of konjaku glucomannan
3.5 parts of agent, 2 parts of methyl allyl alcohol polyoxyethylene ether, 2 parts of expanded perlite；
Wherein, the particle group of the flint clay becomes：Partial size 5-3mm account for 20%, partial size 3-1mm account for 30%, partial size
1-0mm's accounts for 50%；
The particle group of the calcined bauxite in powder becomes：Partial size 100-200 purpose accounts for 75%, and partial size 700-800 purpose accounts for 25%；
The accelerator for hardening is made of sodium hydroxide solution and sodium aluminate solution, and the quality of sodium hydroxide and sodium metaaluminate
Than being 1：3.5.
The preparation method of the castable material for aluminum melting furnace, includes the following steps：
S1, the parts by weight are pressed, konjaku glucomannan is uniformly mixed with diatomite, addition deionized water, water-bath,
It filters, is ground up, sieved after filter cake is dried, obtains explosion-proof compound；
S2, the parts by weight are pressed, explosion-proof compound is mixed with surplus stock, first break process 4.5h is then ground
6.5h obtains just mixing；
S3,350 parts of water are added into first mixing, are successively obtained after convection current mixing, diffusion mixing and shear-mixed wet
Mixture；
S4, wet mixture is processed into embryo material by mold, then embryo material is dried, calcined, obtain castable；
Wherein, in S1, by the parts by weight, konjaku glucomannan is uniformly mixed with diatomite, deionized water is added,
550r/min, water-bath 45min at 55 DEG C, filter, ground 400 mesh, obtains explosion-proof compound after filter cake is dried；
In S4, drying temperature is 800 DEG C, drying time 6h；
In S4, calcination temperature is 1700 DEG C, calcination time 8h.
Embodiment 4
A kind of castable material for aluminum melting furnace, raw material include by weight：47 parts of flint clay, 17 parts of calcined bauxite in powder, aluminium oxide are micro-
13 parts of powder, 3.5 parts of diatomite, 140 parts of deionized water, 7 parts of cement, 5 parts of silicon ash, 6 parts of citric acid, promotees 6 parts of konjaku glucomannan
Hard 3 parts of agent, 1.5 parts of methyl allyl alcohol polyoxyethylene ether, 1.5 parts of expanded perlite；
Wherein, the particle group of the flint clay becomes：Partial size 5-3mm account for 20%, partial size 3-1mm account for 30%, partial size
1-0mm's accounts for 50%；
The particle group of the calcined bauxite in powder becomes：Partial size 100-200 purpose accounts for 75%, and partial size 700-800 purpose accounts for 25%；
The accelerator for hardening is made of sodium hydroxide solution and sodium aluminate solution, and the quality of sodium hydroxide and sodium metaaluminate
Than being 1：2.5.
The preparation method of the castable material for aluminum melting furnace, includes the following steps：
S1, the parts by weight are pressed, konjaku glucomannan is uniformly mixed with diatomite, addition deionized water, water-bath,
It filters, is ground up, sieved after filter cake is dried, obtains explosion-proof compound；
S2, the parts by weight are pressed, explosion-proof compound is mixed with surplus stock, first break process 4h then grinds 7h, obtains
To first mixing；
S3,300 parts of water are added into first mixing, are successively obtained after convection current mixing, diffusion mixing and shear-mixed wet
Mixture；
S4, wet mixture is processed into embryo material by mold, then embryo material is dried, calcined, obtain castable；
Wherein, in S1, by the parts by weight, konjaku glucomannan is uniformly mixed with diatomite, deionized water is added,
500r/min, water-bath 35min at 65 DEG C, filter, ground 500 mesh, obtains explosion-proof compound after filter cake is dried；
In S4, drying temperature is 700 DEG C, drying time 7h；
In S4, calcination temperature is 1500 DEG C, calcination time 10h.
Embodiment 5
A kind of castable material for aluminum melting furnace, raw material include by weight：55 parts of flint clay, 22 parts of calcined bauxite in powder, aluminium oxide are micro-
17 parts of powder, 5 parts of diatomite, 180 parts of deionized water, 11 parts of cement, 8 parts of silicon ash, 10 parts of citric acid, promotees 8 parts of konjaku glucomannan
Hard 4.5 parts of agent, 2.5 parts of methyl allyl alcohol polyoxyethylene ether, 2.3 parts of expanded perlite；
Wherein, the particle group of the flint clay becomes：Partial size 5-3mm account for 20%, partial size 3-1mm account for 30%, partial size
1-0mm's accounts for 50%；
The particle group of the calcined bauxite in powder becomes：Partial size 100-200 purpose accounts for 75%, and partial size 700-800 purpose accounts for 25%；
The accelerator for hardening is made of sodium hydroxide solution and sodium aluminate solution, and the quality of sodium hydroxide and sodium metaaluminate
Than being 1：4.5.
The preparation method of the castable material for aluminum melting furnace, includes the following steps：
S1, the parts by weight are pressed, konjaku glucomannan is uniformly mixed with diatomite, addition deionized water, water-bath,
It filters, is ground up, sieved after filter cake is dried, obtains explosion-proof compound；
S2, the parts by weight are pressed, explosion-proof compound is mixed with surplus stock, first break process 5h then grinds 6h, obtains
To first mixing；
S3,320 parts of water are added into first mixing, are successively obtained after convection current mixing, diffusion mixing and shear-mixed wet
Mixture；
S4, wet mixture is processed into embryo material by mold, then embryo material is dried, calcined, obtain castable；
Wherein, in S1, by the parts by weight, konjaku glucomannan is uniformly mixed with diatomite, deionized water is added,
600r/min, water-bath 50min at 45 DEG C, filter, ground 300 mesh, obtains explosion-proof compound after filter cake is dried；
In S4, drying temperature is 900 DEG C, drying time 4h；
In S4, calcination temperature is 2000 DEG C, calcination time 7h.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of castable material for aluminum melting furnace, which is characterized in that its raw material includes by weight：45-58 parts of flint clay, calcined bauxite in powder
13-25 parts, 11-19 parts of alumina powder, 5-10 parts of konjaku glucomannan, 3-5.5 parts of diatomite, 120-200 parts of deionized water,
6-13 parts of cement, 3-11 parts of silicon ash, 5-11 parts of citric acid, 2-5 parts of accelerator for hardening, 1-3 parts of methyl allyl alcohol polyoxyethylene ether, expansion
1-2.5 parts of perlite.
2. castable material for aluminum melting furnace according to claim 1, which is characterized in that the particle group of the flint clay becomes：Partial size
5-3mm account for 20%, partial size 3-1mm account for 30%, partial size 1-0mm account for 50%.
3. castable material for aluminum melting furnace according to claim 1 or claim 2, which is characterized in that the particle group of the calcined bauxite in powder becomes：Grain
Diameter 100-200 purpose accounts for 75%, and partial size 700-800 purpose accounts for 25%.
4. castable material for aluminum melting furnace according to claim 1 or claim 2, which is characterized in that the accelerator for hardening is by sodium hydroxide solution
It is formed with sodium aluminate solution, and the mass ratio of sodium hydroxide and sodium metaaluminate is 1：2.5-4.5.
5. a kind of preparation method of any one of -4 castable material for aluminum melting furnace according to claim 1, which is characterized in that including under
State step：
S1, the parts by weight are pressed, konjaku glucomannan is uniformly mixed with diatomite, deionized water is added, water-bath is taken out
Filter, is ground up, sieved after filter cake is dried, obtains explosion-proof compound；
S2, the parts by weight are pressed, explosion-proof compound is mixed with surplus stock, first break process 4-5h then grinds 6-7h, obtains
To first mixing；
S3,250-400 parts of water are added into first mixing, are successively obtained after convection current mixing, diffusion mixing and shear-mixed wet
Mixture；
S4, wet mixture is processed into embryo material by mold, then embryo material is dried, calcined, obtain castable.
6. the preparation method of castable material for aluminum melting furnace according to claim 5, which is characterized in that in S1, by the parts by weight,
Konjaku glucomannan is uniformly mixed with diatomite, deionized water, water-bath 35- at 500-600r/min, 45-65 DEG C is added
50min is filtered, and ground 300-500 mesh, obtains explosion-proof compound after filter cake is dried.
7. the preparation method of castable material for aluminum melting furnace according to claim 5, which is characterized in that in S4, drying temperature is
700-900 DEG C, drying time 4-7h.
8. the preparation method of castable material for aluminum melting furnace according to claim 5, which is characterized in that in S4, calcination temperature is
1500-2000 DEG C, calcination time 7-10h.
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| CN111170748A (en) * | 2020-01-08 | 2020-05-19 | 安徽瑞泰新材料科技有限公司 | Small wet spraying refractory material for cement kiln external system and construction method thereof |
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