CN115872730A - Anti-slag-sticking thermal spray repair material for foundry ladle and preparation method and use method thereof - Google Patents
Anti-slag-sticking thermal spray repair material for foundry ladle and preparation method and use method thereof Download PDFInfo
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- CN115872730A CN115872730A CN202211497794.8A CN202211497794A CN115872730A CN 115872730 A CN115872730 A CN 115872730A CN 202211497794 A CN202211497794 A CN 202211497794A CN 115872730 A CN115872730 A CN 115872730A
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- 239000000463 material Substances 0.000 title claims abstract description 50
- 239000007921 spray Substances 0.000 title claims abstract description 29
- 230000008439 repair process Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 180
- 239000000843 powder Substances 0.000 claims abstract description 147
- 239000002245 particle Substances 0.000 claims abstract description 78
- 239000002893 slag Substances 0.000 claims abstract description 65
- 239000000835 fiber Substances 0.000 claims abstract description 60
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000011230 binding agent Substances 0.000 claims abstract description 34
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 26
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000004113 Sepiolite Substances 0.000 claims abstract description 18
- 239000010426 asphalt Substances 0.000 claims abstract description 18
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 18
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 18
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 17
- 239000000440 bentonite Substances 0.000 claims abstract description 17
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 17
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 17
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 17
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 17
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 17
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 17
- 239000006229 carbon black Substances 0.000 claims abstract description 17
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 17
- 239000010431 corundum Substances 0.000 claims abstract description 17
- 239000006004 Quartz sand Substances 0.000 claims abstract description 16
- 229910052849 andalusite Inorganic materials 0.000 claims abstract description 16
- 239000011734 sodium Substances 0.000 claims abstract description 16
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 13
- 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 abstract description 12
- 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 11
- -1 calcium titanium aluminate Chemical class 0.000 claims abstract description 10
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 35
- 238000002156 mixing Methods 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 12
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- JTCFNJXQEFODHE-UHFFFAOYSA-N [Ca].[Ti] Chemical compound [Ca].[Ti] JTCFNJXQEFODHE-UHFFFAOYSA-N 0.000 claims description 8
- 239000000292 calcium oxide Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000011068 loading method Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 230000007306 turnover Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 239000003973 paint Substances 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229940098458 powder spray Drugs 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses an anti-sticking slag hot gunning material for a foundry ladle, a preparation method and a using method thereof, wherein the anti-sticking slag hot gunning material for the foundry ladle consists of a dry powder raw material and a binding agent, and the dry powder raw material comprises the following raw materials in parts by weight: (1) particle raw material: 16-18 parts of quartz sand, 3-5 parts of andalusite, 16-20 parts of high-alumina bauxite, 5-8 parts of silicon carbide particles, 1-3 parts of spherical asphalt and 14-20 parts of calcium titanium aluminate; (2) fine powder raw materials: 3-6 parts of carbon black, 3-6 parts of bentonite, 12.8-18 parts of corundum powder, 10-14 parts of silicon carbide fine powder and alpha-Al 2 O 3 6-10 parts of micro powder and 0.2-1 part of hydrated lime; (3) fiber raw material: 0.5-1 part of sepiolite and 0.05-0.1 part of organic explosion-proof fiber; the binding agent adopts sodium type silica sol, the dosage of which is 9-12 percent of the total weight of the dry powder raw material, and the slag adhesion preventing thermal state spray repair material can be used for spray construction under the condition of high temperature of the foundry ladle, thereby improving the operating environment of workers, improving the turnover efficiency of the foundry ladle, saving energy and prolonging the service life of the foundry ladle.
Description
Technical Field
The invention relates to the technical field of refractory materials, in particular to a slag-bonding-prevention hot-state gunning material for a ladle, a preparation method and a use method thereof.
Background
In the using process of the ladle, as the iron slag is solidified and bonded on the edge and the wall (such as the vicinity of a slag line) of the ladle along with the reduction of the temperature, the capacity of the ladle and the containing of the molten iron are seriously influenced along with the prolonging of the service time of the ladle. Mechanical slag removal can be used when the slag of the ladle is seriously adhered, because the slag and the refractory material of the ladle are seriously adhered, the slag and part of the refractory lining can be brought down together during slag removal, the part of the refractory material of the ladle is damaged, and the service life of the ladle is seriously influenced. Aiming at the phenomenon, a commonly adopted method is that before the ladle is filled with molten iron, anti-slag-sticking coatings are manually smeared on slag lines, ladle edges and other parts which are easy to stick slag in advance so as to prevent the ladle from sticking slag. However, the slag adhesion preventing coating used by the method can be manually coated on the position of the ladle needing to prevent slag adhesion after the ladle is cooled, and for some ladles needing to be continuously used, the slag adhesion is serious due to no cold repair time, so that the taphole of the ladle is reduced, the volume of the ladle is reduced, and the ladle cannot be manually coated with the slag adhesion preventing coating, so that the service life of the ladle is greatly shortened.
Disclosure of Invention
The invention aims to provide an anti-sticking slag hot gunning material for a foundry ladle, a preparation method and a using method thereof, aiming at solving the problems that the conventional foundry ladle anti-sticking slag coating needs to be manually painted and can be manually painted only when the foundry ladle is cooled to normal temperature, and the problem that the conventional foundry ladle which needs to be continuously used is seriously stuck with slag due to no cold repair time and the service life of the foundry ladle is greatly shortened. The anti-slag hot-state gunning material for the foundry ladle can be used for spraying construction under the condition of high temperature of the foundry ladle, improves the operating environment of workers, improves the turnover efficiency of the foundry ladle, saves energy and prolongs the service life of the foundry ladle.
The invention relates to an anti-slag hot-state gunning material for a foundry ladle, which consists of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a particle raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
(1) Particle raw materials:
16-18 parts of quartz sand and 3-5 parts of andalusite
16-20 parts of high-alumina bauxite and 5-8 parts of silicon carbide particles
1-3 parts of spherical asphalt; 14-20 parts of calcium titanium aluminate
(2) Fine powder raw material
3-6 parts of carbon black and 3-6 parts of bentonite
12.8-18 parts of corundum powder, 10-14 parts of silicon carbide fine powder
αAl 2 O 3 6-10 parts of micro powder; 0.2 to 1 portion of hydrated lime
(3) Fiber raw material
0.5-1 part of sepiolite, 0.05-0.1 part of organic explosion-proof fiber;
the weight ratio of the particle raw materials to the fine powder raw materials is 55-65 percent, and the dosage of the fiber raw materials is 0.55-1.1 percent of the total weight of the particle raw materials and the fine powder raw materials;
the binding agent adopts sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 9-11, and the dosage is 9-12 percent of the total weight of the dry powder raw materials.
Preferably, the anti-slag-sticking thermal-state gunning material for the foundry ladle consists of dry powder raw materials and a binding agent, wherein the dry powder raw materials comprise a granular raw material, a fine powder raw material and a fiber raw material, and the dry powder raw materials comprise the following raw materials in parts by weight:
(1) Particle raw materials:
17 parts of quartz sand and 5 parts of andalusite
Bauxite 16 parts silicon carbide particles 6 parts
2 parts of spherical asphalt; 18 portions of titanium calcium aluminate
(2) Fine powder raw material
3 parts of carbon black and 3 parts of bentonite
Corundum powder 12.8 parts and silicon carbide fine powder 11 parts
αAl 2 O 3 6 parts of micro powder; hydrated lime 0.2 part
(3) Fiber raw material
0.5 part of sepiolite and 0.05 part of organic explosion-proof fiber;
the binding agent is sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 10, and the dosage is 9 percent of the total weight of the dry powder raw material.
The quartz sand SiO 2 The mass percentage content of the particles is more than or equal to 99 percent, and the particle size is 0.1-3mm; al in the andalusite 2 O 3 Is greater than 55 percent of SiO 2 Is less than 35 percent, fe 2 O 3 The mass fraction is less than 1.2 percent, and the particle size is 0.1-1mm; al in the high-alumina bauxite 2 O 3 Is more than 80 percent, fe 2 O 3 The mass fraction is less than 1.6 percent, and the particle size is 0.1-3mm; the mass fraction of SiC in the silicon carbide particles is more than or equal to 92%, and the particle size is 0.1-1mm; the mass fraction of fixed carbon in the spherical asphalt is more than or equal to 45 percent, the melting point is higher than 150 ℃, and the particle size is 0.1-1mm; al in the titanium calcium aluminate 2 O 3 Is greater than 70 percent, siO 2 Mass fraction of > 70%, tiO 2 The mass fraction of CaO is more than 12 percent, the mass fraction of CaO is less than 11 percent, and the grain diameter is 3-0.1mm; the mass fraction of C in the carbon black is more than or equal to 99 percent, and the particle size is 300-400 meshes; al in the bentonite 2 O 3 Is greater than 12% by mass, siO 2 Is greater than 70% by mass, fe 2 O 3 Mass fraction of less than 3.5%, H 2 The mass fraction of O is less than 5 percent, and the particle size is 300-350 meshes; al in the corundum fine powder 2 O 3 Has a mass fraction of more than 99 percent and Na 2 The mass fraction of O is less than 0.5 percent, and the particle size is 320 meshes; the mass fraction of SiC in the silicon carbide fine powder is more than or equal to 90%, and the particle size is less than or equal to 0.088mm; the alpha Al 2 O 3 Al in micro powder 2 O 3 The mass fraction is more than 99 percent, and the median particle size is 5 microns; ca (OH) in the slaked lime 2 The mass fraction is more than 90 percent, and the grain diameter is less than or equal to 0.088mm; the sepiolite contains 54-60% of MgO and SiO 2 Is 21-25% by mass, H 2 The mass fraction of O is less than 4%, the fiber length is 2-4mm, the melting point of the organic explosion-proof fiber is 110 ℃, and the fiber length is 3-5mm.
The invention relates to a preparation method of a slag-sticking-preventing hot-state gunning material for a foundry ladle, which comprises the following steps of:
(1) Sequentially adding the granular raw materials into a mixer according to the formula ratio, and mixing for 2-3min;
(2) Adding the fiber raw materials into a mixer in sequence according to a formula ratio, and mixing for 1-2min;
(3) Sequentially adding the fine powder raw materials into a mixer according to a formula ratio, and mixing for 8-10min;
(4) And (4) packaging the mixed dry powder raw materials obtained in the step (3) according to weight parts, and preparing the binding agent silica sol with a corresponding weight ratio for each part of the dry powder raw materials according to the weight of the dry powder raw materials to obtain the product.
The invention relates to a using method of an anti-sticking slag hot spray repair material for a foundry ladle, which comprises the following steps: selecting a proper spraying machine according to the size of the ladle, then loading dry powder raw materials into the spraying machine, mixing and adding a binding agent silica sol at the outlet of the spraying machine, carrying out thermal spray repair on the position of the ladle, where a pit needs to be repaired or an anti-slag coating needs to be sprayed, when the temperature of the ladle is reduced to below 1200 ℃, and putting the ladle into use after the sprayed coating is dried and solidified without waiting for the ladle to be completely cooled.
Preferably, the hot spray repair of the ladle is best when the temperature of the ladle is reduced to 800-1000 ℃ (the cycle use efficiency is higher), and of course, the hot spray repair can also be adopted when the temperature of the ladle is continuously reduced to 400-800 ℃ or lower, and the hot spray repair can be used as long as the hot spray repair is carried out after the spray repair is dried and solidified.
In the formula of the anti-sticking slag hot spray repair material for the foundry ladle, the raw materials have the following functions:
quartz Sand (SiO) as defined in the invention 2 Not less than 99 percent) and the grain diameter is 0.1-3mm, and the coating mainly plays a role of refractory aggregate in spray coating and can resist the erosion of slag and the washing of molten iron. The particle size of andalusite0.1-1mm, can improve the thermal shock stability of the material in the spray coating, can generate certain volume expansion due to the crystal form conversion of mullite in high-temperature use, increases the compactness of the spray coating, and improves the slag erosion resistance. The high-alumina bauxite with the grain diameter of 0.1-3mm mainly plays a role of refractory aggregate in the spray coating and resists the erosion and melting loss of slag. The grain size of the silicon carbide particles (SiC is more than or equal to 92 percent) is 0.1-1mm, and the silicon carbide particles are used for improving the slag corrosion resistance of the material matrix and reducing the adhesion of slag. The particle size of the spherical asphalt (the fixed carbon is more than or equal to 45 percent, the melting point is higher than 150 ℃) is 0.1-1mm, and the spherical asphalt is used for increasing the slag corrosion resistance of a matrix refractory and reducing the slag adhesion. The titanium calcium aluminate (Al) 2 O 3 ＞70%，SiO 2 ＞70%，TiO 2 More than 12 percent, caO less than 11 percent and the grain diameter is 0.1-3mm, is used for improving the sintering performance of the spray coating and increasing the high-temperature slag scouring resistance strength of the spray coating. The carbon black (C is more than or equal to 99 percent) has the grain diameter of 300-400 meshes and is used for increasing the carbon content of a matrix refractory and reducing the adhesion of slag to a spray coating. In the bentonite (Al) 2 O 3 ＞12%，SiO 2 ＞70%，Fe 2 O 3 ＜3.5%，H 2 O is less than 5 percent) with the grain diameter of 300 to 350 meshes, is used for improving the construction performance of the spray paint and increasing the adhesiveness of the spray paint during construction. In the corundum (Al) 2 O 3 ＞99%，Na 2 O is less than 0.5 percent), the grain diameter is 200 to 250 meshes, and the material matrix is used for improving the slag erosion resistance. The SiC in the silicon carbide fine powder has the mass fraction of more than or equal to 90 percent and the particle size of less than or equal to 0.088mm, and is used for improving the slag corrosion resistance of the matrix. The alpha Al 2 O 3 Al in micro powder 2 O 3 The mass fraction of the powder is more than 99 percent, and the median particle size is 5 microns, so that the powder is used for improving the sintering performance of a spray coating matrix and improving the adhesiveness of the spray coating. In the slaked lime (Ca (OH) 2 More than 95 percent) of the powder with the grain diameter less than or equal to 0.088mm, improves the adhesive property of the spray coating and promotes the quick solidification of the spray coating. In the sepiolite (MgO: 54-60%, siO) 2 ：21-25%，H 2 O is less than 4 percent) the fiber length is 2-4mm, and the fiber is used for improving the adhesion performance of the spray coating and improving the explosion-proof performance of the quick baking of the spray coating. The melting point of the organic explosion-proof fiber is 110 ℃, the fiber length is 3-5mm, and the organic explosion-proof fiber is used for improvingThe spraying adhesion performance of the spray paint is beneficial to forming a micro channel for discharging water vapor when the spray paint is rapidly baked, and the explosion-proof performance of the spray paint is improved.
The anti-slag-sticking thermal spray repair material for the foundry ladle is prepared by firstly uniformly mixing granular raw materials, then adding the sepiolite and the organic fibers for uniform mixing, and finally adding the fine powder raw material, wherein the fiber raw material and the fine powder raw material are added after the granular materials are uniformly mixed, the fine powder and the fibers are more easily scattered by depending on the mixing and stirring effect of granules, and then the fine powder and the fibers are uniformly mixed to prepare the dry powder spray paint, after the dry powder spray paint is added into a spraying machine, the silica sol binding agent is added along with the mixing of the outlet of the spraying machine, the dry powder and the spray paint are mixed by high-pressure air, the silica sol reacts with calcium oxide in the material and is further cured by the silica sol, the silica sol contains partial moisture and can also moisten a matrix of the spray paint, and further certain binding property is generated. The silica sol can be dehydrated and solidified at high temperature, and has strong bonding property. Because the gunning material does not basically contain sodium oxide and other low-melting-point materials which affect the high-temperature performance of the material after construction, the gunning material has good slag corrosion resistance and slag adhesion resistance, has excellent high-temperature strength, can well isolate high-temperature slag from a foundry ladle refractory material, and prolongs the service life of the foundry ladle.
The invention has the following beneficial effects:
1. the novel hot-state gunning material for the foundry ladle has a good anti-bonding effect on the foundry ladle slag, the foundry ladle slag is not easy to bond, the slag bonded to the foundry ladle is easy to clean, and the refractory material of the foundry ladle is protected from being damaged during slag cleaning. The service efficiency and the service life of the ladle can be greatly improved;
2. by adopting the water-based paint, the special spray gun can spray and repair the part needing to be treated in time without waiting for the ladle to be cooled after molten iron is discharged, thereby improving the turnover efficiency of the ladle and saving energy.
Detailed Description
In order to better explain the technical solution of the present invention, the technical solution of the present invention is further described below with reference to specific examples, which are only exemplary to illustrate the technical solution of the present invention and do not limit the present invention in any way.
Example 1
The anti-slag hot-state gunning material for the foundry ladle in the embodiment is composed of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a particle raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
(1) Particle raw materials:
17 parts of quartz sand and 5 parts of andalusite
High-alumina bauxite 16 parts and silicon carbide particle 6 parts
2 parts of spherical asphalt; 18 portions of titanium calcium aluminate
(2) Fine powder raw material
3 parts of carbon black and 3 parts of bentonite
Corundum powder 12.8 parts and silicon carbide fine powder 11 parts
αAl 2 O 3 6 parts of micro powder; hydrated lime 0.2 part
(3) Fiber raw material
0.5 part of sepiolite, 0.05 part of organic explosion-proof fiber;
the binding agent adopts sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 10, and the dosage is 9 percent of the total weight of the dry powder raw materials.
In this example, the silica sand SiO 2 The mass percentage content of the particles is more than or equal to 99 percent, and the particle size is 0.1-3mm; al in the andalusite 2 O 3 Is greater than 55 percent of SiO 2 Less than 35% by mass, fe 2 O 3 The mass fraction is less than 1.2 percent, and the particle size is 0.1-1mm; al in the high-alumina bauxite 2 O 3 Is greater than 80% by mass, fe 2 O 3 The mass fraction is less than 1.6 percent, and the particle size is 0.1-3mm; the mass fraction of SiC in the silicon carbide particles is more than or equal to 92%, and the particle size is 0.1-1mm; the mass fraction of fixed carbon in the spherical asphalt is more than or equal to 45 percent, the melting point is higher than 150 ℃, and the particle size is 0.1-1mm; al in the titanium calcium aluminate 2 O 3 Mass fraction of > 70%, siO 2 Is > 70% by mass, TiO 2 The mass fraction of CaO is more than 12 percent, the mass fraction of CaO is less than 11 percent, and the grain diameter is 0.1-3mm; the mass fraction of C in the carbon black is more than or equal to 99 percent, and the particle size is 300-400 meshes; al in the bentonite 2 O 3 Is greater than 12% by mass, siO 2 Is greater than 70 percent, fe 2 O 3 Mass fraction of less than 3.5%, H 2 The mass fraction of O is less than 5 percent, and the particle size is 300-350 meshes; al in the corundum fine powder 2 O 3 Has a mass fraction of more than 99 percent and Na 2 The mass fraction of O is less than 0.5 percent, and the particle size is 320 meshes; the mass fraction of SiC in the silicon carbide fine powder is more than or equal to 90 percent, and the particle size is less than or equal to 0.088mm; the alpha Al 2 O 3 Al in micro powder 2 O 3 The mass fraction is more than 99 percent, and the median particle size is 5 microns; ca (OH) in the slaked lime 2 The mass fraction is more than 90 percent, and the grain diameter is less than or equal to 0.088mm; the sepiolite contains 54-60% of MgO and SiO 2 Is 21-25% by mass, H 2 The mass fraction of O is less than 4%, the fiber length is 2-4mm, the melting point of the organic explosion-proof fiber is 110 ℃, and the fiber length is 3-5mm.
The preparation method of the anti-slag hot gunning material for the foundry ladle in the embodiment comprises the following steps:
(1) Sequentially adding the granular raw materials into a mixer according to the formula proportion, and mixing for 2-3min;
(2) Adding the fiber raw materials into a mixer in sequence according to a formula ratio, and mixing for 1-2min;
(3) Sequentially adding the fine powder raw materials into a mixer according to the formula proportion, and mixing for 8-10min;
(4) And (4) packaging the mixed dry powder raw materials obtained in the step (3) according to weight parts, and preparing the binding agent silica sol with a corresponding weight ratio for each part of the dry powder raw materials according to the weight of the dry powder raw materials to obtain the product.
In this embodiment, a ladle used for tracking a batch of newly-charged 5 tons of non-cold-repair hot-state rotating ladle is taken as an example to describe the using method and using effect of the anti-slag-sticking hot-state gunning material for a ladle according to this embodiment, and the total number of the batches of ladles is 2, and the batches of ladles are used for receiving cast molten iron rotating for smelting in an induction furnace.
Firstly, according to the embodiment, the ladle to be gunned is a 5 t-capacity ladle, a DFPZ-0.5 type spraying machine manufactured by Hunan Dingfeng machinery Limited company is selected (the specific model of the selected spraying machine, the manufacturer selects according to the spraying requirement, and can also select other spraying machines meeting the spraying requirement of the embodiment), before each gunning, the area of the ladle needing gunning is observed, the amount of the gunning material needing to be used is estimated, the dry powder raw material of the gunning material prepared in the embodiment is loaded into the spraying machine, the binding agent silica sol is added at the outlet of the spraying machine, when the temperature of the ladle is reduced to 800-1000 ℃, the hot gunning is carried out on the position of the ladle needing to be repaired and needing to be sprayed with the anti-sticking slag coating, after the gunning of the ladle is waited for 30-40 minutes, the spraying material on the ladle is dried and solidified, the hot-state can be directly put into use, the use is repeated, the use method, the ladle is averaged for 400 times, the ladle is completely scrapped after 6 months, and the ladle is more completely rotated than the service life of the ladle without heat.
Example 2
The anti-slag-sticking thermal spray repair material for the foundry ladle in the embodiment is composed of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a particle raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
(1) Particle raw materials:
quartz sand 16 parts andalusite 3 parts
High alumina bauxite 18 parts silicon carbide particle 6 parts
3 parts of spherical asphalt; 19 portions of calcium titanium aluminate
(2) Fine powder raw material
Carbon black 3 parts and bentonite 3 parts
Corundum powder 12.8 parts, silicon carbide fine powder 10 parts
αAl 2 O 3 6 parts of micro powder; hydrated lime 0.2 part
(3) Fiber raw material
1 part of sepiolite and 0.1 part of organic explosion-proof fiber;
the binding agent is a peptideWith sodium-type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 9, and the dosage is 10 percent of the total weight of the dry powder raw materials.
The above raw materials were required in the same manner as in example 1.
The preparation method of the anti-sticking slag hot gunning material for the ladle in the embodiment is the same as that of the embodiment 1.
The use method of the anti-sticking slag hot spray repair material for the foundry ladle comprises the following steps: selecting a proper size of a spraying machine according to the size of a ladle, then loading dry powder raw materials into the spraying machine, mixing and adding a binding agent silica sol at an outlet of the spraying machine, carrying out thermal spray repair on the position of the ladle, where a pit needs to be repaired or an anti-slag-sticking coating needs to be sprayed, when the temperature of the ladle is reduced to below 1200 ℃, spraying the repaired ladle, and putting into use after the sprayed coating is dried and solidified without waiting for the ladle to be completely cooled.
Example 3
The anti-slag-sticking thermal spray repair material for the foundry ladle in the embodiment is composed of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a particle raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
(1) Particle raw materials:
18 parts of quartz sand and 4 parts of andalusite
Bauxite 20 parts silicon carbide particles 8 parts
1 part of spherical asphalt; 14 portions of calcium titanium aluminate
(2) Fine powder raw material
Carbon black 3 parts and bentonite 3 parts
Corundum powder 12.8 parts, silicon carbide fine powder 10 parts
αAl 2 O 3 6 parts of micro powder; hydrated lime 0.2 part
(3) Fiber raw material
0.8 part of sepiolite and 0.08 part of organic explosion-proof fiber;
the binding agent is sodium type silica sol, siO 2 The mass fraction of (A) is 20%, the pH value is 10, and the dosage is12 percent of the total weight of the dry powder raw materials.
The above raw materials were required in the same manner as in example 1.
The hot-state gunning material for the anti-sticking slag for the foundry ladle in the embodiment has the same preparation method as the embodiment 1 and the using method as the embodiment 2.
Example 4
The anti-slag hot-state gunning material for the foundry ladle in the embodiment is composed of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a particle raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
(1) Particle raw materials:
quartz sand 16 parts and andalusite 3 parts
Bauxite 16 parts silicon carbide particles 5 parts
1 part of spherical asphalt; titanium calcium aluminate 20 parts
(2) Fine powder raw material
6 parts of carbon black and 3 parts of bentonite
13 parts of corundum powder and 10 parts of silicon carbide fine powder
αAl 2 O 3 6 parts of micro powder; hydrated lime 1 part
(3) Fiber raw material
0.7 part of sepiolite and 0.06 part of organic explosion-proof fiber;
the binding agent is sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 11, and the dosage is 11 percent of the total weight of the dry powder raw material.
The above raw materials were required in the same manner as in example 1.
The preparation method of the anti-sticking slag hot gunning material for the foundry ladle in the embodiment is the same as the embodiment 1, and the using method is the same as the embodiment 2.
Example 5
The anti-slag-sticking thermal spray repair material for the foundry ladle in the embodiment is composed of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a particle raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
(1) Particle raw materials:
quartz sand 16 parts andalusite 3 parts
High-alumina bauxite 20 parts and silicon carbide particle 8 parts
1 part of spherical asphalt; 14 parts of calcium titanium aluminate
(2) Fine powder raw material
Carbon black 3 parts and bentonite 3 parts
13.5 parts of corundum powder and 10 parts of silicon carbide fine powder
αAl 2 O 3 8 parts of micro powder; hydrated lime 0.5 part
(3) Fiber raw material
0.5 part of sepiolite, 0.05 part of organic explosion-proof fiber;
the binding agent adopts sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 10, and the dosage is 10 percent of the total weight of the dry powder raw materials.
The above raw materials were required in the same manner as in example 1.
The hot-state gunning material for the anti-sticking slag for the foundry ladle in the embodiment has the same preparation method as the embodiment 1 and the using method as the embodiment 2.
Example 6
The anti-slag hot-state gunning material for the foundry ladle in the embodiment is composed of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a particle raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
(1) Particle raw materials:
quartz sand 16 parts and andalusite 3 parts
Bauxite 16 parts silicon carbide particles 5 parts
1 part of spherical asphalt; 14 portions of calcium titanium aluminate
(2) Fine powder raw material
6 parts of carbon black and 3 parts of bentonite
15.5 parts of corundum powder and 10 parts of silicon carbide fine powder
αAl 2 O 3 10 parts of micro powder; hydrated lime 0.5 part
(3) Fiber raw material
0.9 part of sepiolite, 0.09 part of organic explosion-proof fiber;
the binding agent adopts sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 10, and the dosage is 12 percent of the total weight of the dry powder raw materials.
The above raw materials were required in the same manner as in example 1.
The preparation method of the anti-sticking slag hot gunning material for the foundry ladle in the embodiment is the same as the embodiment 1, and the using method is the same as the embodiment 2.
Example 7
The anti-slag hot-state gunning material for the foundry ladle in the embodiment is composed of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a particle raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
(1) Particle raw materials:
quartz sand 16 parts and andalusite 3 parts
Bauxite 16 parts silicon carbide particles 5 parts
1 part of spherical asphalt; 14 portions of calcium titanium aluminate
(2) Fine powder raw material
3 parts of carbon black and 6 parts of bentonite
13.2 parts of corundum powder and 14 parts of silicon carbide fine powder
αAl 2 O 3 8 parts of micro powder; hydrated lime 0.8 part
(3) Fiber raw material
0.6 part of sepiolite and 0.06 part of organic explosion-proof fiber;
the binding agent is sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 10, and the dosage is 10 percent of the total weight of the dry powder raw materials.
The above raw materials were required in the same manner as in example 1.
The preparation method of the anti-sticking slag hot gunning material for the foundry ladle in the embodiment is the same as the embodiment 1, and the using method is the same as the embodiment 2.
Example 8
The anti-slag hot-state gunning material for the foundry ladle in the embodiment is composed of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a particle raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
(1) Particle raw materials:
quartz sand 16 parts and andalusite 3 parts
Bauxite 16 parts silicon carbide particles 5 parts
1 part of spherical asphalt; 14 portions of calcium titanium aluminate
(2) Fine powder raw material
3 parts of carbon black and 3 parts of bentonite
Corundum powder 18 parts, silicon carbide fine powder 10 parts
αAl 2 O 3 10 parts of micro powder; hydrated lime 1 part
(3) Fiber raw material
0.7 part of sepiolite and 0.07 part of organic explosion-proof fiber;
the binding agent is sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 10, and the dosage is 11 percent of the total weight of the dry powder raw materials.
The above raw materials were required in the same manner as in example 1.
The preparation method of the anti-sticking slag hot gunning material for the foundry ladle in the embodiment is the same as the embodiment 1, and the using method is the same as the embodiment 2.
The eight embodiments described above are merely specific examples of the present invention exemplified for explaining the present invention, and do not limit the present invention in any way, and any insubstantial changes from the above descriptions and forms without departing from the scope of the present invention are to be construed as falling within the scope of the present invention.
Claims (6)
1. The anti-slag hot-state gunning material for the foundry ladle is characterized by consisting of a dry powder raw material and a binding agent, wherein the dry powder raw material comprises a granular raw material, a fine powder raw material and a fiber raw material, and the dry powder raw material comprises the following raw materials in parts by weight:
particle raw materials:
16-18 parts of quartz sand and 3-5 parts of andalusite
16-20 parts of high-alumina bauxite and 5-8 parts of silicon carbide particles
1-3 parts of spherical asphalt; 14-20 parts of calcium titanium aluminate
(2) Fine powder raw material
3-6 parts of carbon black and 3-6 parts of bentonite
12.8-18 parts of corundum powder, 10-14 parts of silicon carbide fine powder
αAl 2 O 3 6-10 parts of micro powder; 0.2 to 1 portion of hydrated lime
(3) Fiber raw material
0.5-1 part of sepiolite, 0.05-0.1 part of organic explosion-proof fiber;
the weight ratio of the particle raw material to the fine powder raw material is 55-65 percent;
the binding agent is sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 9 to 11, and the dosage is 9 to 12 percent of the total weight of the dry powder raw materials.
2. The hot-state gunning material for the anti-sticking slag of the foundry ladle as claimed in claim 1, which is characterized by consisting of dry powder raw materials and a binding agent, wherein the dry powder raw materials comprise a granular raw material, a fine powder raw material and a fiber raw material, and the dry powder raw materials comprise the following raw materials in parts by weight:
(1) Particle raw materials:
17 parts of quartz sand and 5 parts of andalusite
High-alumina bauxite 16 parts and silicon carbide particle 6 parts
2 parts of spherical asphalt; 18 portions of titanium calcium aluminate
(2) Fine powder raw material
3 parts of carbon black and 3 parts of bentonite
Corundum powder 12.8 parts and silicon carbide fine powder 11 parts
αAl 2 O 3 6 parts of micro powder; hydrated lime 0.2 part
(3) Fiber raw material
0.5 part of sepiolite and 0.05 part of organic explosion-proof fiber;
the binding agent is sodium type silica sol, siO 2 The weight percentage of the dry powder is 20 percent, the pH value is 10, and the dosage is 9 percent of the total weight of the dry powder raw materials.
3. The hot patching material of anti-sticking slag for foundry ladle according to claim 1 or 2, wherein: the quartz sand SiO 2 The mass percentage content of the composite is more than or equal to 99 percent, and the particle size is 0.1-3mm; al in the andalusite 2 O 3 Is greater than 55 percent of SiO 2 Less than 35% by mass, fe 2 O 3 The mass fraction is less than 1.2 percent, and the particle size is 0.1-1mm; al in the high-alumina bauxite 2 O 3 Is more than 80 percent, fe 2 O 3 The mass fraction is less than 1.6 percent, and the particle size is 0.1-3mm; the mass fraction of SiC in the silicon carbide particles is more than or equal to 92%, and the particle size is 0.1-1mm; the mass fraction of fixed carbon in the spherical asphalt is more than or equal to 45 percent, the melting point is higher than 150 ℃, and the particle size is 0.1-1mm; al in the titanium calcium aluminate 2 O 3 Mass fraction of > 70%, siO 2 Mass fraction of > 70%, tiO 2 The mass fraction of CaO is more than 12 percent, the mass fraction of CaO is less than 11 percent, and the grain diameter is 0.1-3mm; the mass fraction of C in the carbon black is more than or equal to 99 percent, and the particle size is 300-400 meshes; al in the bentonite 2 O 3 Is greater than 12% by mass, siO 2 Is greater than 70% by mass, fe 2 O 3 Mass fraction of less than 3.5%, H 2 The mass fraction of O is less than 5 percent, and the grain diameter is 300-350 meshes; al in the corundum fine powder 2 O 3 Is more than 99 percent and Na 2 The mass fraction of O is less than 0.5 percent, and the particle size is 320 meshes; the mass fraction of SiC in the silicon carbide fine powder is more than or equal to 90%, and the particle size is less than or equal to 0.088mm; the alpha Al 2 O 3 Al in micro powder 2 O 3 The mass fraction is more than 99 percent, and the median particle size is 5 micrometers; ca (OH) in the slaked lime 2 The mass fraction is more than 90 percent, and the grain diameter is less than or equal to 0.088mm; the sepiolite contains 54-60% of MgO and SiO 2 Is 21-25% by mass, H 2 The mass fraction of O is less than 4%, the fiber length is 2-4mm, the melting point of the organic explosion-proof fiber is 110 ℃, and the fiber length is 3-5mm.
4. The method for preparing the hot gunning material of anti-sticking slag for the foundry ladle according to claim 1 or 2, characterized by comprising the following steps:
(1) Sequentially adding the granular raw materials into a mixer according to the formula proportion, and mixing for 2-3min;
(2) Adding the fiber raw materials into a mixer in sequence according to the formula proportion, and mixing for 1-2min;
(3) Sequentially adding the fine powder raw materials into a mixer according to the formula proportion, and mixing for 8-10min;
(4) And (4) packaging the mixed dry powder raw materials obtained in the step (3) according to weight, and preparing the binding agent silica sol with a corresponding weight ratio for each part of the dry powder raw materials according to the weight of the dry powder raw materials to obtain the product.
5. The use method of the hot patching material of anti-sticking slag for ladles according to claim 1 or 2, characterized by comprising the following steps: selecting a proper spraying machine according to the size of the ladle, then loading dry powder raw materials into the spraying machine, mixing and adding a binding agent silica sol at the outlet of the spraying machine, carrying out thermal spray repair on the position of the ladle, where a pit needs to be repaired or an anti-slag coating needs to be sprayed, when the temperature of the ladle is reduced to below 1200 ℃, and putting the ladle into use after the sprayed coating is dried and solidified without waiting for the ladle to be completely cooled.
6. The use method of the anti-sticking slag hot gunning material for the foundry ladle according to claim 5, characterized in that: and when the temperature of the foundry ladle is reduced to 800-1000 ℃, carrying out hot spray repair on the foundry ladle.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003040684A (en) * | 2001-07-30 | 2003-02-13 | Kurosaki Harima Corp | Castable refractory for molten iron |
| CN104150931A (en) * | 2014-08-13 | 2014-11-19 | 北京利尔高温材料股份有限公司 | Molten-slag-resistant spray paint for lade and application method thereof |
| CN104788115A (en) * | 2015-05-05 | 2015-07-22 | 黄河科技学院 | Fireproof spraying coating for steel ladle working lining and preparation method of fireproof spraying coating |
| CN105218118A (en) * | 2015-10-29 | 2016-01-06 | 长兴云峰炉料有限公司 | A kind of novel from silicon carbide Gunning refractory |
| CN107512916A (en) * | 2017-07-27 | 2017-12-26 | 苏州诺瑞达新材料科技有限公司 | A kind of new self-bonding carborundum gunning refractory |
| CN110563470A (en) * | 2019-08-23 | 2019-12-13 | 河南恒耐尔耐火材料有限公司 | High-strength explosion-proof spray coating and preparation method thereof |
| WO2020083408A1 (en) * | 2018-10-26 | 2020-04-30 | 通达耐火技术股份有限公司 | Preparation method for titanium composite anti-erosion wear-resistant refractory castable |
| CN113087528A (en) * | 2021-04-09 | 2021-07-09 | 郑州市瑞沃耐火材料有限公司 | Slag sticking prevention agent for foundry ladle and use method thereof |
| CN113105256A (en) * | 2021-04-19 | 2021-07-13 | 武汉钢铁有限公司 | Anti-slag refractory castable for molten iron composite slag skimming plate, preparation method and use method |
| CN114736027A (en) * | 2022-05-23 | 2022-07-12 | 郑州四季火耐火材料有限公司 | Slag adhesion preventing coating for ladle lining and preparation method thereof |
-
2022
- 2022-11-28 CN CN202211497794.8A patent/CN115872730B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003040684A (en) * | 2001-07-30 | 2003-02-13 | Kurosaki Harima Corp | Castable refractory for molten iron |
| CN104150931A (en) * | 2014-08-13 | 2014-11-19 | 北京利尔高温材料股份有限公司 | Molten-slag-resistant spray paint for lade and application method thereof |
| CN104788115A (en) * | 2015-05-05 | 2015-07-22 | 黄河科技学院 | Fireproof spraying coating for steel ladle working lining and preparation method of fireproof spraying coating |
| CN105218118A (en) * | 2015-10-29 | 2016-01-06 | 长兴云峰炉料有限公司 | A kind of novel from silicon carbide Gunning refractory |
| CN107512916A (en) * | 2017-07-27 | 2017-12-26 | 苏州诺瑞达新材料科技有限公司 | A kind of new self-bonding carborundum gunning refractory |
| WO2020083408A1 (en) * | 2018-10-26 | 2020-04-30 | 通达耐火技术股份有限公司 | Preparation method for titanium composite anti-erosion wear-resistant refractory castable |
| CN110563470A (en) * | 2019-08-23 | 2019-12-13 | 河南恒耐尔耐火材料有限公司 | High-strength explosion-proof spray coating and preparation method thereof |
| CN113087528A (en) * | 2021-04-09 | 2021-07-09 | 郑州市瑞沃耐火材料有限公司 | Slag sticking prevention agent for foundry ladle and use method thereof |
| CN113105256A (en) * | 2021-04-19 | 2021-07-13 | 武汉钢铁有限公司 | Anti-slag refractory castable for molten iron composite slag skimming plate, preparation method and use method |
| CN114736027A (en) * | 2022-05-23 | 2022-07-12 | 郑州四季火耐火材料有限公司 | Slag adhesion preventing coating for ladle lining and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 徐平坤等编: "《循环流化床锅炉运行及事故处理》", vol. 1, 冶金工业出版社, pages: 207 - 208 * |
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