CN102728828A - Ladle working liner and preparation method thereof - Google Patents
Ladle working liner and preparation method thereof Download PDFInfo
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- CN102728828A CN102728828A CN2012102081413A CN201210208141A CN102728828A CN 102728828 A CN102728828 A CN 102728828A CN 2012102081413 A CN2012102081413 A CN 2012102081413A CN 201210208141 A CN201210208141 A CN 201210208141A CN 102728828 A CN102728828 A CN 102728828A
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Abstract
The invention relates to a ladle working liner and a preparation method thereof, and belongs to the technical field of a ferrous metallurgy ladle process. The ladle working liner is characterized in that a ladle bottom working liner consists of three layers of structures which are ladle bottom working liner flat laid refractory bricks (7), ladle bottom working liner vertical laid refractory bricks (6) and ladle bottom working liner castable (11) from bottom to top in sequence, wherein the iron flow impact region working liner refractory bricks (5) on the lower part of a ladle wall is 20-30 mm thicker than the working liner refractory bricks (3) on the upper part of the ladle wall; a ladle wall coating layer (4) is coated on the outer surfaces of the working liner refractory bricks (3) on the upper part of the ladle wall and the iron flow impact region working liner refractory bricks (5) on the lower part of the ladle wall; and a ladle edge coating layer (10) is coated on the upper part of a ladle edge pressing plate (9). By using the ladle working liner, the service life of the ladle working liner is prolonged by 300-400 heats and the ladle refractory material cost is reduced by over 30 percent on year-on-year basis.
Description
Technical field
The present invention relates to a kind of ladle working lining and preparation method thereof, belong to Ferrous Metallurgy ladle technology field.
Background technology
Ladle is to be the container of steel-making shipment molten iron, and its liner generally comprises permanent liner and working lining.The ladle working lining mainly contains two kinds at present: a kind of is that pours is integrated poured, and a kind of employing high-alumina brick or clay brick are built by laying bricks or stones.In recent years, the unburned brick of aluminium silicon carbide matter is progressively applied on the big-and-middle-sized at home ladle working lining because of having anti-erosion, not hanging slag, Heat stability is good and high cost performance.But new common technology problem appears in the unburned brick of aluminium silicon carbide matter in practical application: (1) aluminium silicon carbide matter unburned brick antioxygenic property is poor, and especially in bake process, the surface oxidation of aluminium silicon carbide matter unburned brick is heavier; (2) aluminium silicon carbide matter unburned brick brickwork joint oozes the iron problem; (3) receive at the bottom of the ladle bag that the molten iron beam washes away and Bao Bi bottom working lining, damage speed is big, local scour, corrode heavy, asynchronous with the working lining life-span at other position; (4) the ladle bag is along the dry slag difficult treatment, and the rapid wear rascal is along the working lining brick at position, and compelled rolling off the production line built by laying, and use with turnover the service life that has influenced the ladle working lining, and increased the ladle cost of anti-the material.
CN102259184A discloses a kind of ladle working lining brick masonry construction.From ladle pouring mouth offside position point to the vertical line that wraps the bottom opening face; Or from ladle pouring oral-lateral position point to the vertical line that wraps the bottom opening face; Is datum mark with above-mentioned arbitrary vertical line with the intersection point that institute is built by laying bricks or stones ring brick place circular arc, and it is datum line that above-mentioned arbitrary datum mark is belonged to the circle center line connecting that encircles the brick circular arc with datum mark; Adjacent arbitrary datum line left-right symmetric has been built five bricks by laying bricks or stones, and the fit angle of five bricks reaches optimum state.But the integrated masonry technology that does not relate to ladle.
Summary of the invention
The objective of the invention is; To the common technology problem that occurs in the background technology; A kind of ladle working lining and preparation method thereof is provided, improves ladle working lining structure and preparation method, the surface oxidation, the brickwork joint that solve the unburned brick of aluminium silicon carbide matter ooze iron, working lining local erosion and heavily wait the common technology problem; Adopt the present invention to improve ladle working lining heat in service lifes 300～400 on year-on-year basis, reduce the ladle cost of anti-the material on year-on-year basis more than 30%.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
A kind of ladle working lining; The ladle working lining is installed on ladle involucrum (1); Within bag wall permanent liner (2) and the bag end permanent liner (12), comprise that the flat block of end working lining refractory brick (7), bag end working lining laid on end refractory brick (6), bag basic skill or training make liner in pouring material (11), Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5), Bao Bi top working lining refractory brick (3) and bag wall coating (4); It is characterized in that; Be followed successively by the flat block of bag end working lining refractory brick (7), bag end working lining laid on end refractory brick (6) and bag basic skill or training on bag end permanent liner (12) top from bottom to top and make liner in pouring material (11), bag end working lining laid on end refractory brick (6) periphery and the space (8) of wrapping between the wall permanent liner (2) adopt pours to tamp; Inside upper part in bag wall permanent liner (2) is that Bao Bi top working lining refractory brick (3), bottom are Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5), and the bag wall is smeared the outer surface that the bed of material (4) spreads upon Bao Bi top working lining refractory brick (3), Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5).
Ladle involucrum (1) inwall is laid bag wall permanent liner (2), and bag end permanent liner (12) is laid in ladle involucrum (1) bottom.
Preferably, said ladle working lining also comprises bag along pressing plate (9), and bag is positioned at ladle involucrum (1) top along pressing plate (9); Bag is smeared bag along smearing the bed of material (10) along pressing plate (9) top.
Preferably, said ladle working lining, the flowing molten iron impact zone working lining refractory brick (5) of its Bao Bi bottom is than Bao Bi top working lining refractory brick (3) thickening 20～30mm.
Preferably, the flat block of bag end working lining refractory brick (7) thickness d is 80～120mm, and bag end working lining laid on end refractory brick (6) thickness c is 230～300mm, and it is 60～120mm that the bag basic skill or training makes liner in pouring material (11) thickness m.
Preferably, Bao Bi top working lining refractory brick (3) thickness a is 120～140mm, and Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5) thickness b is 140～170mm.
Preferably, to smear the bed of material (4) thickness e be 15～30mm to the bag wall.
Preferably, bag is 100～200mm along smearing the bed of material (10) thickness k.
Preferably, Bao Bi bottom flowing molten iron impact zone working lining (5) height H is 800～1200mm.
Preferably, the bag width L that pushes down Bao Bi top working lining (3) along pressing plate (9) is (1/2～2/3) a.A is Bao Bi top working lining refractory brick (a 3) thickness.
Gap length n≤60mm at the bottom of the said bag between the periphery of working lining laid on end refractory brick (6) and the bag wall permanent liner (2).
Flat refractory brick (7), bag end working lining laid on end refractory brick (6), Bao Bi top working lining refractory brick (3), the Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5) built of working lining all adopts unburned brick of aluminium silicon carbide matter or the unburned brick of aluminium silicon carbide zirconium matter to build by laying bricks or stones at the bottom of the said bag.
Preferably, the unburned brick of said aluminium silicon carbide matter is to be primary raw material with corundum, bauxite, graphite, carborundum, is bond with phenolic resins, the not burned product that forms through low-temperature bake, by weight percentage, its Al
2O
3Content is 68～71%, and C content is 11～16%, and SiC content is 5.6～6.5%, SiO
2Content is 2.2～6.5%, Fe
2O
3Content is 0.2～1.2%, TiO
2Content is 2.5～3.5%, CaO content≤0.25%, MgO content≤0.25%, K
2O content≤0.2%, Na
2O content≤0.2%, its apparent porosity are 3.0～8.0%, and bulk density is 2.95～3.05g/cm
3, cold crushing strength is 50～55MPa, refractoriness under load is 1600～1630 ℃.
Apparent porosity is claimed apparent porosity again, is the volume of refractory product split shed pore and the percentage of goods cumulative volume.
Refractoriness under load is claimed the loading deformation temperature again, is called for short load softening point.Characterizing refractory material under constant loading, to high temperature and acting resistivity of loading while, also characterize the softening range that refractory material presents obvious plastic deformation, is important high-temperature mechanical property index in the practical applications.
Preferably, the unburned brick of said aluminium silicon carbide zirconium matter is to be primary raw material with fused alumina zirconia, bauxite, graphite, carborundum, is bond with phenolic resins, the not burned product that forms through low-temperature bake, by weight percentage, its Al
2O
3+ ZrO
2Content is 71～81%, and C content is 11～15%, and SiC content is 2.6～6.2%, SiO
2Content is 3.0～6.4%, Fe
2O
3Content is 0.2～1.2%, TiO
2Content is 1.5～3.5%, CaO content≤0.25%, MgO content≤0.25%, K
2O content≤0.2%, Na
2O content≤0.2%, its apparent porosity are 6～7.5%, and bulk density is 2.97～3.12g/cm
3, cold crushing strength is 45～55MPa, refractoriness under load is 1600～1630 ℃.
Saidly be used to wrap the basic skill or training and make liner in pouring material (11), form by following material by weight percentage: 15mm ≦ granularity<the one-level alumine 8 ~ 12% of 10mm, 5mm ≦ granularity<the one-level alumine 16 ~ 20% of 10mm, 3mm ≦ granularity<the one-level alumine 8 ~ 12% of 5mm, 1mm ≦ granularity<the one-level alumine 12 ~ 15% of 3mm, 0.083mm<granularity<the one-level alumine 6 ~ 8% of 1mm, 0.074mm The special grade bauxite fine powder 8 ~ 12% of < Li Du ≦ 0.083mm, 0.083mm<granularity<the carborundum 10 ~ 12% of 1mm, Li Du ≦ 0.047mm a-Al
2O
3Micro mist 5.0 ~ 6.0%, the silicon powder 5.0 ~ 6.0% of Li Du ≦ 0.047mm, the metallic aluminium powder 3.0 ~ 4.5% of Li Du ≦ 0.165mm, pure calcium aluminate cement 3.0 ~ 4.5%, heat-resistant steel fiber 1.5～2.5%.
Said one-level alumine, by weight percentage, its Al
2O
3Content is 85 ~ 87.9%, SiO
2Content is 8 ~ 13%, Fe
2O
3Content is 0.70 ~ 1.20%, TiO
2Content is 2.5 ~ 3.5%, and CaO content is 0.15 ~ 0.65%, and MgO content is 0.10 ~ 0.25%, K
2O content is 0.10 ~ 0.20%, Na
2O content is 0.02 ~ 0.08%, and its bulk density is 3.00 ~ 3.14g.cm
-3, water absorption rate≤5%.Preferably, said one-level alumine, by weight percentage, its Al
2O
3Content is 83.7%, SiO
2Content is 11.2%, Fe
2O
3Content is 1.09%, TiO
2Content is 2.95%, and CaO content is 0.61%, and MgO content is 0.21%, K
2O content is 0.18%, Na
2O content is 0.06%, and its bulk density is 3.10g.cm
-3, water absorption rate≤5%.
Said special grade bauxite, by weight percentage, its Al
2O
3Content is 88 ~ 92%, SiO
2Content is 2 ~ 8%, Fe
2O
3Content is 0.8 ~ 1.1%, TiO
2Content is 1.0 ~ 3.5%, and CaO content is 0.1 ~ 0.3%, and MgO content is 0.1 ~ 0.20%, K
2O content is 0.05 ~ 0.12%, Na
2O content is 0.01 ~ 0.06%, and its bulk density is 3.15 ~ 3.20g.cm
-3, water absorption rate≤4%.Preferably, said special grade bauxite, by weight percentage, its Al
2O
3Content is 88.4%, SiO
2Content is 6.5%, Fe
2O
3Content is 1.10%, TiO
2Content is 3.5%, and CaO content is 0.24%, and MgO content is 0.15%, K
2O content is 0.09%, Na
2O content is 0.02%, and its bulk density is 3.15g.cm
-3, water absorption rate≤4%.
Said carborundum is commonly called as diamond dust, and its SiC content >=94% is processed in the energising reaction after generally mixing with silica and coke.
Said silicon powder is commonly called as the silicon ash, is the byproduct of producing metallic silicon or Antaciron, SiO in the silicon ash
2Content>=92%, granularity is less than 5 μ m, and granularity accounts for 80～85% less than 2 μ m.
Said heat-resistant steel fiber is to produce with the heat resisting steel that contains alloying elements such as chromium nickel, and its specification is cross section 0.2mm * 1.0mm, and length has 20mm, 25mm, 30mm and 35mm, the optional trade mark be 330,310,304,446,430 wherein a kind of.
Preferably, the said pure calcium aluminate cement trade mark is CA-70.
Preferably, saidly be used to wrap the basic skill or training and make liner in pouring material (11), form by following material by weight percentage: 15mm ≦ granularity<the one-level alumine 8% of 10mm, 5mm ≦ granularity<the one-level alumine 16% of 10mm, 3mm ≦ granularity<the one-level alumine 12% of 5mm, 1mm ≦ granularity<the one-level alumine 12% of 3mm, 0.083mm<granularity<the one-level alumine 8% of 1mm, 0.074mm The special grade bauxite fine powder 12% of < Li Du ≦ 0.083mm, 0.083mm<granularity<the carborundum 12% of 1mm, Li Du ≦ 0.047mm a-Al
2O
3Micro mist 5.0%, the silicon powder 5.0% of Li Du ≦ 0.047mm, the metallic aluminium powder 3.0% of Li Du ≦ 0.165mm, pure calcium aluminate cement 4.5%, heat-resistant steel fiber 2.5%.
The bag wall coating (4) of the said Bao Bi of being used for top working lining refractory brick (3), Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5) outer surface and be used for the ladle bag along the bag on pressing plate (9) top along coating (10); All form by following material by weight percentage: 1mm ≦ granularity < flint clay 15～25% of 3mm; 0.083mm < granularity < flint clay 15～25% of 1mm, 1mm ≦ granularity < the one-level alumine 10～20% of 3mm, 0.083mm < granularity < the one-level alumine 6～20% of 1mm; 0.083mm < granularity < the fused mullite fine powder 7～12% of carborundum 6～10% Li Du ≦ 0.074mm of 1mm, the special grade bauxite fine powder 5～10% of Li Du ≦ 0.074mm, the silicon powder 1.5～3.0% of Li Du ≦ 0.047mm; Pure calcium aluminate cement 0.5～2.5%; Sodium phosphate trimer 1.3～4.0%, calcium lignosulfonate 0.1～0.5%, refractory fibre 0.1～0.5%.
Said flint clay, by weight percentage, its Al
2O
3Content is 44～50%, SiO
2Content is 48～54%, Fe
2O
3Content is 1.0～1.5%, K
2O, Na
2O and other impurity content are 0.5～1.5%, and its bulk density is 2.45～2.58g.cm
-3, water absorption rate 5～6%, refractoriness is 1690～1750 ℃.
Said fused mullite, by weight percentage, its Al
2O
3Content is 66.7～73.2%, SiO
2Content is 21.9～27.9%, Fe
2O
3Content is 0.60～1.68%, K
2O, Na
2O and other impurity content are 2.0～5.0%, and its bulk density is 2.84～2.91g.cm
-3, apparent porosity is 0.85～2.91%, water absorption rate 0.3～1.0%, refractoriness＞1790 ℃.
Said refractory fibre is processed through modification by polypropylene fibre, have good dispersion, no sintering, no doubling, residual less, characteristics such as result of use is good, be the excellent anti-explosion additives of various amorphous refractories, high-strength quick-acting amorphous refractory particularly.165～175 ℃ of length L=6mm phasor diameter D=0.048mm fusing point.
Preferably, the bag wall coating (4) of the said Bao Bi of being used for top working lining refractory brick (3), Bao Bi bottom flowing molten iron impact zone working lining (5) refractory brick outer surface and be used for the ladle bag along the bag on pressing plate (9) top along coating (10), all form by following material by weight percentage: 1mm ≦ granularity < flint clay 25% of 3mm; 0.083mm < granularity < flint clay 15% of 1mm, 1mm ≦ granularity < the one-level alumine 10% of 3mm, 0.083mm < granularity < the one-level alumine 20% of 1mm; 0.083mm < granularity < the fused mullite fine powder 7% of carborundum 6% Li Du ≦ 0.074mm of 1mm, the special grade bauxite fine powder 10% of Li Du ≦ 0.074mm, the silicon powder 1.5% of Li Du ≦ 0.047mm; Pure calcium aluminate cement 0.5%; Sodium phosphate trimer 4.0%, calcium lignosulfonate 0.5%, refractory fibre 0.5%.
The present invention also provides the preparation method of ladle working lining, may further comprise the steps:
1) material preparation: will wrap the basic skill or training and make liner in pouring material (11), and add dried stirring 5～10 minutes in the batch mixer, and after stirring, pack subsequent use by after the described material proportion weighing; To wrap the wall coating by after the described proportioning weighing, and stir in the adding batch mixer, dried stirring 5～10 minutes after stirring, packs subsequent use;
2) bag end working lining construction is on bag end permanent liner (12) top, with unburned brick of aluminium silicon carbide matter or the unburned brick of aluminium silicon carbide zirconium matter, first brick laid on flat (7); Its thickness d is 80～120mm, and brick-on-end again (6) is built by laying bricks or stones to periphery with the center at the bag end successively; Its thickness c is 230～300mm, flat build, the laid on end brickwork joint all≤1.0mm, at last at the periphery and the peripheral space (8) of wrapping between the wall of brick-on-end; Adopting the bag basic skill or training to make the liner in pouring material tamps: the bag basic skill or training of step 1) preparation is made the liner in pouring material, add in the batch mixer, do and mix after 1～2 minute; Behind the water mixing of adding 4～5%, put in the peripheral space, adopt the vibration moulding of plug-in type vibrating head; It is fully closely knit until pours to discharge the interior bubble of pours, surfacing, natural Health preservation 4～8 hours;
3) Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5) construction; Flat block method is adopted in the unburned brick of aluminium silicon carbide matter or the unburned brick of aluminium silicon carbide zirconium matter, by down and to building brick laid on flat seam≤1.0mm by laying bricks or stones; Its thickness b is 140～170mm, and its height H is 800～1200mm;
4) Bao Bi top working lining refractory brick (3) construction is with above-mentioned step 2), its thickness a is 120～140mm;
5) the bag basic skill or training does liner in pouring material (11) construction, and the bag basic skill or training that step 1) is prepared makes the liner in pouring material, adds in the batch mixer; Do and mix after 1～2 minute, add 5～6% water mixing, put into the top of ladle working lining brick (7) then; Adopt the vibration moulding of plug-in type vibrating head, bubble is fully closely knit until pours in the discharge pours, surfacing; And guarantee that the thickness m that the bag basic skill or training makes liner in pouring material (11) is 60～120mm, natural Health preservation 12～24 hours;
6) the bag wall is smeared the bed of material (4) construction, and just the bag wall coating of step 1) preparation adds in the batch mixer; Do and mix after 1～2 minute, add the water of coating gross weight 12 ~ 15%, stirred 4 ~ 6 minutes; Stir; Adopt trowel evenly to spread upon the outer surface of Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5), Bao Bi top working lining refractory brick (3) from bottom to top, its thickness e is 15～30mm, natural Health preservation 12～24 hours;
7) bag is along smearing the bed of material (10) construction, and with above-mentioned step 6), its thickness k is 100～200mm, natural Health preservation 12～24 hours, and the preparation of ladle working lining is accomplished.
The present invention has the following advantages:
1) smears one deck coating and make increase one deck pours above the lining brick at bag wall working lining brick outer surface, in bake process,, solve the surface oxidation problem of aluminium silicon carbide zirconium matter unburned brick as layer protective layer the bag basic skill or training; When ladle comes into operation, alleviated the erosion of high temperature liquid iron (1250～1350 ℃) to carborundum zirconium matter unburned brick (650～750 ℃ of surface temperatures) " heat is shaken " effect; At the use initial stage, can form the vitreum of toughness on the surface of brick, can cover effectively in the surface and brickwork joint of brick, solve brickwork joint and oozed the iron problem.
2) the present invention has solved the heavy technical barrier of working lining local erosion according to the damage mechanism of working lining and the working lining structure of erosion rate different designs, has realized that the service life at each position of working lining is synchronous.
3) the present invention improves ladle working lining heat in service lifes 300～400 on year-on-year basis, reduces the ladle cost of anti-the material on year-on-year basis more than 30%.
The present invention is successful Application on the Laiwu iron and steel group silver mountain steel mill 130t of shaped steel Co., Ltd ladle; Effect is good: the ladle working lining is on average brought up to 1050 heats by 640 heats service life; Improve 410 heats on year-on-year basis, reduce the ladle cost of anti-material the 36% on year-on-year basis.
Description of drawings
Fig. 1 is a ladle inner lining structure sketch map of the present invention.
Wherein, 1-ladle involucrum, 2-bag wall permanent liner, 3-Bao Bi top working lining refractory brick; 4-bag wall is smeared the bed of material, 5-Bao Bi bottom flowing molten iron impact zone working lining refractory brick, 6-bag end working lining laid on end refractory brick; The flat refractory brick of building of 7-bag end working lining, the space between 8-bag end working lining laid on end refractory brick periphery and the bag wall permanent liner, 9-wraps along pressing plate; The 10-bag is along smearing the bed of material, and 11-bag basic skill or training makes the liner in pouring material, 12-bag end permanent liner.
The specific embodiment
Following examples are that the preparation technology who invents is further specified, but the present invention is not limited thereto.
Embodiment 1:
As shown in Figure 1; A kind of ladle working lining, the ladle working lining is installed on ladle involucrum 1, within bag wall permanent liner 2 and the bag end permanent liner 12; Ladle working lining ladle involucrum 1 inwall is laid bag wall permanent liner 2, and bag end permanent liner 12 is laid in ladle involucrum 1 bottom.Comprise that the flat block of end working lining refractory brick 7, bag end working lining laid on end refractory brick 6, bag basic skill or training make liner in pouring material 11, Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5, Bao Bi top working lining refractory brick 3 and bag wall coating 4; It is characterized in that; Be followed successively by the flat block of bag end working lining refractory brick 7, bag end working lining laid on end refractory brick 6 and bag basic skill or training on bag permanent liner 12 tops, the end from bottom to top and make liner in pouring material 11, bag end working lining laid on end refractory brick 6 peripheries and the space 8 of wrapping between the wall permanent liner 2 adopt pours to tamp; Inside upper part in bag wall permanent liner 2 is that Bao Bi top working lining refractory brick 3, bottom are Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5, and the bag wall is smeared the outer surface that the bed of material 4 spreads upon Bao Bi top working lining refractory brick 3, Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5.
Said ladle working lining, the flowing molten iron impact zone working lining refractory brick 5 of its Bao Bi bottom is than Bao Bi top working lining refractory brick 3 thickening 20mm.
The flat block of working lining refractory brick 7 thickness d are 80mm at the bottom of the said bag, and bag end working lining laid on end refractory brick 6 thickness c are 230mm, and it is 120mm that the bag basic skill or training makes liner in pouring material 11 thickness m.It is 120mm that the bag basic skill or training makes liner in pouring material (11) thickness m.
Said Bao Bi top working lining refractory brick 3 thickness a are 120mm, and Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5 thickness b are 140mm.
It is 30mm that said bag wall is smeared the bed of material 4 thickness e.
Said bag is 100mm along smearing the bed of material 10 thickness k.
Said Bao Bi bottom flowing molten iron impact zone working lining 5 height H are 800mm.
It is 2/3a, i.e. 80mm that said bag is pushed down Bao Bi top working lining 3 width L along pressing plate 9.
Gap length n≤60mm at the bottom of the said bag between the periphery of working lining laid on end refractory brick 6 and the bag wall permanent liner 2.
Described Bao Bi top working lining refractory brick 3, Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5, bag end working lining laid on end refractory brick 6, bag end working lining 7 all adopt the unburned brick of aluminium silicon carbide matter to build by laying bricks or stones.
The unburned brick of said aluminium silicon carbide matter is to be primary raw material with corundum, bauxite, graphite, carborundum, is bond with phenolic resins, the not burned product that forms through low-temperature bake, by weight percentage, its Al
2O
3Content is 71%, and C content is 14.5%, and SiC content is 6.2%, SiO
2Content is 4.3%, Fe
2O
3Content is 0.3%, TiO
2Content is 3.5%, CaO+MgO+K
2O+Na
2O content is 0.2%, and its apparent porosity is 7.0%, and bulk density is 3.05g/cm
3, cold crushing strength is 50MPa, refractoriness under load is 1600 ℃.
Saidly be used to wrap the basic skill or training and make liner in pouring material 11, form by following material by weight percentage: 15mm ≦ granularity<the one-level alumine 8% of 10mm, 5mm ≦ granularity<the one-level alumine 16% of 10mm, 3mm ≦ granularity<the one-level alumine 12% of 5mm, 1mm ≦ granularity<the one-level alumine 12% of 3mm, 0.083mm<granularity<the one-level alumine 8% of 1mm, 0.074mm The special grade bauxite fine powder 12% of < Li Du ≦ 0.083mm, 0.083mm<granularity<the carborundum 12% of 1mm, Li Du ≦ 0.047mm a-Al
2O
3Micro mist 5.0%, the silicon powder 5.0% of Li Du ≦ 0.047mm, the metallic aluminium powder 3.0% of Li Du ≦ 0.165mm, pure calcium aluminate cement 4.5%, heat-resistant steel fiber 2.5%.
Said one-level alumine, by weight percentage, its Al
2O
3Content is 83.7%, SiO
2Content is 11.2%, Fe
2O
3Content is 1.09%, TiO
2Content is 2.95%, and CaO content is 0.61%, and MgO content is 0.21%, K
2O content is 0.18%, Na
2O content is 0.06%, and its bulk density is 3.10g.cm
-3, water absorption rate≤5%.
Said special grade bauxite, by weight percentage, its Al
2O
3Content is 88.4%, SiO
2Content is 6.5%, Fe
2O
3Content is 1.10%, TiO
2Content is 3.5%, and CaO content is 0.24%, and MgO content is 0.15%, K
2O content is 0.09%, Na
2O content is 0.02%, and its bulk density is 3.15g.cm
-3, water absorption rate≤4%.
Said carborundum is commonly called as diamond dust, and its SiC content >=94% is processed in the energising reaction after generally mixing with silica and coke.
Said silicon powder is commonly called as the silicon ash, is the byproduct of producing metallic silicon or Antaciron, SiO in the silicon ash
2Content>=92%, granularity is less than 5 μ m, and granularity accounts for 80～85% less than 2 μ m.
Said heat-resistant steel fiber is to produce with the heat resisting steel that contains alloying elements such as chromium nickel, and its specification is cross section 0.2mm * 1.0mm, and length has 20mm, 25mm, 30mm and 35mm, the optional trade mark be 330,310,304,446,430 wherein a kind of.
Preferably, the said pure calcium aluminate cement trade mark is CA-70.
The bag wall coating 4 of the said Bao Bi of being used for top working lining refractory brick 3, Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5 outer surfaces and be used for the ladle bag along the bag on pressing plate 9 tops along coating 10, all form by following material by weight percentage: 1mm ≦ granularity < flint clay 25% of 3mm, the 0.083mm < granularity < flint clay 15% of 1mm; 1mm ≦ granularity < one-level alumine 10% of 3mm; 0.083mm < granularity < the one-level alumine 20% of 1mm, 0.083mm < granularity < carborundum 6% of 1mm, the silicon powder 1.5% of special grade bauxite fine powder 10% Li Du ≦ 0.047mm of fused mullite fine powder 7% Li Du ≦ 0.074mm of Li Du ≦ 0.074mm, pure calcium aluminate cement 0.5%, sodium phosphate trimer 4.0%; Calcium lignosulfonate 0.5%, refractory fibre 0.5%.
Said flint clay is selected the secondary flint clay for use, by weight percentage, and its Al
2O
3Content is 44.2%, SiO
2Content is 53.6%, Fe
2O
3Content is 1.4%, K
2O, Na
2O and other impurity content are 0.8%, and its bulk density is 2.45g.cm
-3, water absorption rate 6%, refractoriness is 1690 ℃.
Said fused mullite is selected trade mark M65 for use, by weight percentage, and its Al
2O
3Content is 66.7%, SiO
2Content is 27.9%, Fe
2O
3Content is 1.68%, K
2O, Na
2O and other impurity content are 3.72%, and bulk density is 2.84g.cm
-3, apparent porosity is 0.85%, water absorption rate 0.30%, refractoriness＞1790 ℃.
Said refractory fibre is processed through modification by polypropylene fibre, have good dispersion, no sintering, no doubling, residual less, characteristics such as result of use is good, be the excellent anti-explosion additives of various amorphous refractories, high-strength quick-acting amorphous refractory particularly.165～175 ℃ of length L=6mm phasor diameter D=0.048mm fusing point.
The present invention also provides the preparation method of ladle working lining, may further comprise the steps:
1) material preparation: will wrap the basic skill or training do liner in pouring material 11 by described material proportion weighing after, add interior dried the stirring 5 minutes of batch mixer, after stirring, pack subsequent use; To wrap the wall coating by after the described proportioning weighing, and stir in the adding batch mixer, dried stirring 5 minutes after stirring, packs subsequent use;
2) bag end working lining construction is on bag permanent liner 12 tops, the end, with the unburned brick of aluminium silicon carbide zirconium matter, first brick laid on flat 7; Its thickness d is 80mm, and brick-on-end 6 again, builds by laying bricks or stones to periphery successively with the center at the bag end, and its thickness c is 230mm; Flat build, the laid on end brickwork joint all≤1.0mm, adopt the bag basic skill or trainings to make the liner in pouring material at the periphery of brick-on-end with the peripheral space 8 between the bag wall at last and tamp: the bag basic skill or training of step 1) preparation is made the liner in pouring material, add in the batch mixer, do mixed after 2 minutes; Behind the water mixing of adding 4%, put in the peripheral space, adopt the vibration moulding of plug-in type vibrating head; It is fully closely knit until pours to discharge the interior bubble of pours, surfacing, natural Health preservation 4 hours;
3) Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5 constructions are adopted flat block method with unburned brick of aluminium silicon carbide matter or the unburned brick of aluminium silicon carbide zirconium matter, and to building by laying bricks or stones, brick laid on flat seam≤1.0mm, its thickness b are 140mm by descending, and its height H is 800mm;
4) Bao Bi top working lining refractory brick 3 constructions are with above-mentioned step 2), its thickness a is 120mm;
5) the bag basic skill or training does 11 constructions of liner in pouring material, and the bag basic skill or training that step 1) is prepared makes the liner in pouring material, adds in the batch mixer; Do and mix after 2 minutes, add 5% water mixing, put into the top of ladle working lining brick 7 then; Adopt the vibration moulding of plug-in type vibrating head, bubble is fully closely knit until pours in the discharge pours, surfacing; And guarantee that the thickness m that the bag basic skill or training makes liner in pouring material 11 is 120mm, natural Health preservation 24 hours;
6) the bag wall is smeared the bed of material 4 constructions, and just the bag wall coating of step 1) preparation adds in the batch mixer; Do and mix after 1～2 minute, add the water of coating gross weight 12%, stirred 4 minutes; Stir; Adopt trowel evenly to spread upon the outer surface of Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5, Bao Bi top working lining refractory brick 3 from bottom to top, its thickness e is 30mm, natural Health preservation 24 hours;
7) bag is along smearing the bed of material 10 constructions, and with above-mentioned step 6), its thickness k is 100mm, natural Health preservation 12 hours, and the preparation of ladle working lining is accomplished.
Other are with embodiment 1, and difference is:
Said ladle working lining also comprises bag along pressing plate 9, and bag is positioned at ladle involucrum 1 top along pressing plate 9; Bag is smeared bag along smearing the bed of material 10 along pressing plate (9) top.
Said ladle working lining, the flowing molten iron impact zone working lining refractory brick 5 of its Bao Bi bottom is than Bao Bi top working lining refractory brick 3 thickening 30mm.
The flat block of working lining refractory brick 7 thickness d are 120mm at the bottom of the said bag, and bag end working lining laid on end refractory brick 6 thickness c are 300mm, and it is 60mm that the bag basic skill or training makes liner in pouring material 11 thickness m.
Said Bao Bi top working lining refractory brick 3 thickness a are 140mm, and Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5 thickness b are 170mm.
It is 15mm that said bag wall is smeared the bed of material 4 thickness e.
Said bag is 200mm along smearing the bed of material 10 thickness k.
Said Bao Bi bottom flowing molten iron impact zone working lining 5 height H are 1200mm.
It is 1/2a, i.e. 70mm that said bag is pushed down Bao Bi top working lining 3 width L along pressing plate 9.
Said Bao Bi top working lining 3, Bao Bi bottom flowing molten iron impact zone working lining 5, bag end working lining laid on end refractory brick 6, bag end working lining 7 all adopt the unburned brick of aluminium silicon carbide zirconium matter to build by laying bricks or stones.
The unburned brick of said aluminium silicon carbide zirconium matter is to be primary raw material with fused alumina zirconia, bauxite, graphite, carborundum, is bond with phenolic resins, the not burned product that forms through low-temperature bake, by weight percentage, its Al
2O
3+ ZrO
2Content is 71.5%, and C content is 11.5%, and SiC content is 6%, SiO
2Content is 6.4%, Fe
2O
3Content is 0.9%, TiO
2Content is 3.5%, CaO+MgO+K
2O+Na
2O content is 0.2%, and its apparent porosity is 6.5%, and bulk density is 2.97g/cm
3, cold crushing strength is 55MPa, refractoriness under load is 1630 ℃.
Saidly be used to wrap the basic skill or training and make liner in pouring material 11, form by following material by weight percentage: 15mm ≦ granularity<the one-level alumine 12% of 10mm, 5mm ≦ granularity<the one-level alumine 20% of 10mm, 3mm ≦ granularity<the one-level alumine 8% of 5mm, 1mm ≦ granularity<the one-level alumine 15% of 3mm, 0.083mm<granularity<the one-level alumine 6% of 1mm, 0.074mm The special grade bauxite fine powder 8% of < Li Du ≦ 0.083mm, 0.083mm<granularity<the carborundum 10% of 1mm, Li Du ≦ 0.047mm a-Al
2O
3Micro mist 6.0%, the silicon powder 6.0% of Li Du ≦ 0.047mm, the metallic aluminium powder 4.5% of Li Du ≦ 0.165mm, pure calcium aluminate cement 3.0%, heat-resistant steel fiber 1.5%.
The bag wall coating 4 of the said Bao Bi of being used for top working lining refractory brick 3, Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5 outer surfaces and be used for the ladle bag along the bag on pressing plate 9 tops along coating 10, all form by following material by weight percentage: 1mm ≦ granularity < flint clay 15% of 3mm, the 0.083mm < granularity < flint clay 25% of 1mm; 1mm ≦ granularity < one-level alumine 20% of 3mm; 0.083mm < granularity < the one-level alumine 6% of 1mm, 0.083mm < granularity < carborundum 10% of 1mm, the silicon powder 3.0% of special grade bauxite fine powder 5% Li Du ≦ 0.047mm of fused mullite fine powder 12% Li Du ≦ 0.074mm of Li Du ≦ 0.074mm, pure calcium aluminate cement 2.5%, sodium phosphate trimer 1.3%; Calcium lignosulfonate 0.1%, refractory fibre 0.1%.
Said flint clay is selected superfine flint clay for use, by weight percentage, and its Al
2O
3Content is 47.7%, SiO
2Content is 50.8%, Fe
2O
3Content is 1.0%, K
2O, Na
2O and other impurity content are 0.5%, and its bulk density is 2.58g.cm
-3, water absorption rate 5%, 1750 ℃ of refractoriness.
Said fused mullite is selected trade mark M73 for use, by weight percentage, and its Al
2O
3Content is 73.2%, SiO
2Content is 21.9%, Fe
2O
3Content is 1.25%, K
2O, Na
2O and other impurity content are 3.65%, and its bulk density is 2.91g.cm
-3, apparent porosity is 2.91%, water absorption rate 1.0%, refractoriness＞1790 ℃.
The preparation method of ladle working lining may further comprise the steps:
1) material preparation: will wrap the basic skill or training do liner in pouring material 11 by described material proportion weighing after, add interior dried the stirring 10 minutes of batch mixer, after stirring, pack subsequent use; To wrap the wall coating by after the described proportioning weighing, and stir in the adding batch mixer, dried stirring 10 minutes after stirring, packs subsequent use;
2) bag end working lining construction, on bag permanent liner 12 tops, the end, with the unburned brick of aluminium silicon carbide matter, first brick laid on flat 7; Its thickness d is 120mm, and brick-on-end 6 again, builds by laying bricks or stones to periphery successively with the center at the bag end, and its thickness c is 300mm; Flat build, the laid on end brickwork joint all≤1.0mm, the peripheral space 8 between the periphery of brick-on-end and bag wall is adopted the bag basic skill or training to make the liner in pouring material and is tamped: the bag basic skill or training of step 1) preparation made the liner in pouring material, in the adding batch mixer at last; Do and mix after 1 minute, behind the water mixing of adding 5%, put in the peripheral space, adopt the vibration moulding of plug-in type vibrating head; It is fully closely knit until pours to discharge the interior bubble of pours, surfacing, natural Health preservation 8 hours;
3) Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5 constructions are adopted flat block method with unburned brick of aluminium silicon carbide matter or the unburned brick of aluminium silicon carbide zirconium matter, and to building by laying bricks or stones, brick laid on flat seam≤1.0mm, its thickness b are 170mm by descending, and its height H is 1200mm;
4) Bao Bi top working lining refractory brick 3 constructions are with above-mentioned step 2), its thickness a is 140mm;
5) the bag basic skill or training does 11 constructions of liner in pouring material, and the bag basic skill or training that step 1) is prepared makes the liner in pouring material, adds in the batch mixer; Do and mix after 2 minutes, add 6% water mixing, put into the top of ladle working lining brick 7 then; Adopt the vibration moulding of plug-in type vibrating head, bubble is fully closely knit until pours in the discharge pours, surfacing; And guarantee that the thickness m that the bag basic skill or training makes liner in pouring material 11 is 60mm, natural Health preservation 12 hours;
6) the bag wall is smeared the bed of material 4 constructions, and just the bag wall coating of step 1) preparation adds in the batch mixer; Do and mix after 2 minutes, add the water of coating gross weight 15%, stirred 6 minutes; Stir; Adopt trowel evenly to spread upon the outer surface of Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5, Bao Bi top working lining refractory brick 3 from bottom to top, its thickness e is 15mm, natural Health preservation 12 hours;
7) bag is along smearing the bed of material 10 constructions, and with above-mentioned step 6), its thickness k is 200mm, natural Health preservation 24 hours, and the preparation of ladle working lining is accomplished.
Other are with embodiment 1, and difference is:
Said ladle working lining, the flowing molten iron impact zone working lining refractory brick 5 of its Bao Bi bottom is than Bao Bi top working lining refractory brick 3 thickening 25mm.
The flat block of bag end working lining refractory brick 7 thickness d are 100mm, and bag end working lining laid on end refractory brick 6 thickness c are 280mm, and it is 90mm that the bag basic skill or training makes liner in pouring material 11 thickness m.
Working lining refractory brick 3 thickness a in Bao Bi top are 130mm, and Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5 thickness b are 155mm.
It is 20mm that the bag wall is smeared the bed of material 4 thickness e
Bag is 150mm along smearing the bed of material 10 thickness k.
Bao Bi bottom flowing molten iron impact zone working lining 5 height H are 1000mm.
The width L that bag is pushed down Bao Bi top working lining along pressing plate 9 is 80mm.
Gap length n≤60mm at the bottom of the said bag between the periphery of working lining laid on end refractory brick 6 and the bag wall permanent liner 2.
The unburned brick of said aluminium silicon carbide matter is to be primary raw material with corundum, bauxite, graphite, carborundum, is bond with phenolic resins, the not burned product that forms through low-temperature bake, by weight percentage, its Al
2O
3Content is 69.1%, and C content is 14%, and SiC content is 6.5%, SiO
2Content is 6.5%, Fe
2O
3Content is 1.2%, TiO
2Content is 2.5%, CaO+MgO+K
2O+Na
2O content is 0.2%, and its apparent porosity is 5.0%, and bulk density is 2.95g/cm
3, cold crushing strength is 55MPa, refractoriness under load is 1630 ℃.
Saidly be used to wrap the basic skill or training and make liner in pouring material 11, form by following material by weight percentage: 15mm ≦ granularity<the one-level alumine 10% of 10mm, 5mm ≦ granularity<the one-level alumine 18% of 10mm, 3mm ≦ granularity<the one-level alumine 10% of 5mm, 1mm ≦ granularity<the one-level alumine 13% of 3mm, 0.083mm<granularity<the one-level alumine 7% of 1mm, 0.074mm The special grade bauxite fine powder 10% of < Li Du ≦ 0.083mm, 0.083mm<granularity<the carborundum 11% of 1mm, Li Du ≦ 0.047mm a-Al
2O
3Micro mist 5.5%, the silicon powder 5.5% of Li Du ≦ 0.047mm, the metallic aluminium powder 4.0% of Li Du ≦ 0.165mm, pure calcium aluminate cement 4.0%, heat-resistant steel fiber 2.0%.
The preparation method of ladle working lining may further comprise the steps:
1) material preparation: will wrap the basic skill or training do liner in pouring material 11 by described material proportion weighing after, add interior dried the stirring 7 minutes of batch mixer, after stirring, pack subsequent use; To wrap the wall coating by after the described proportioning weighing, and stir in the adding batch mixer, dried stirring 7 minutes after stirring, packs subsequent use;
2) bag end working lining construction is on bag permanent liner 12 tops, the end, with unburned brick of aluminium silicon carbide matter or the unburned brick of aluminium silicon carbide zirconium matter, first brick laid on flat 7; Its thickness d is 100mm, and brick-on-end 6 again, builds by laying bricks or stones to periphery successively with the center at the bag end; Its thickness c is 280mm, flat build, the laid on end brickwork joint all≤1.0mm, at last at the periphery and the peripheral space 8 of wrapping between the wall of brick-on-end; Adopting the bag basic skill or training to make the liner in pouring material tamps: the bag basic skill or training of step 1) preparation is made the liner in pouring material, add in the batch mixer, do and mix after 1～2 minute; Behind the water mixing of adding 4%, put in the peripheral space, adopt the vibration moulding of plug-in type vibrating head; It is fully closely knit until pours to discharge the interior bubble of pours, surfacing, natural Health preservation 6 hours;
3) Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5 constructions are adopted flat block method with the unburned brick of aluminium silicon carbide matter, and to building by laying bricks or stones, brick laid on flat seam≤1.0mm, its thickness b are 155mm by descending, and its height H is 1000mm;
4) Bao Bi top working lining refractory brick 3 constructions are with above-mentioned step 2), its thickness a is 130mm;
5) the bag basic skill or training does 11 constructions of liner in pouring material, and the bag basic skill or training that step 1) is prepared makes the liner in pouring material, adds in the batch mixer; Do and mix after 2 minutes, add 6% water mixing, put into the top of ladle working lining brick 7 then; Adopt the vibration moulding of plug-in type vibrating head, bubble is fully closely knit until pours in the discharge pours, surfacing; And guarantee that the thickness m that the bag basic skill or training makes liner in pouring material 11 is 90mm, natural Health preservation 18 hours;
6) the bag wall is smeared the bed of material 4 constructions, and just the bag wall coating of step 1) preparation adds in the batch mixer; Do and mix after 1 minute, add the water of coating gross weight 13%, stirred 5 minutes; Stir; Adopt trowel evenly to spread upon the outer surface of Bao Bi bottom flowing molten iron impact zone working lining refractory brick 5, Bao Bi top working lining refractory brick 3 from bottom to top, its thickness e is 22mm, natural Health preservation 18 hours;
7) bag is along smearing the bed of material 10 constructions, and with above-mentioned step 6), its thickness k is 150mm, natural Health preservation 18 hours, and the preparation of ladle working lining is accomplished.
Other are with embodiment 2, and difference is:
The unburned brick of said aluminium silicon carbide zirconium matter is to be primary raw material with fused alumina zirconia, bauxite, graphite, carborundum, is bond with phenolic resins, the not burned product that forms through low-temperature bake, by weight percentage, its Al
2O
3+ ZrO
2Content is 73.6%, and C content is 13.2%, and SiC content is 5%, SiO
2Content is 5.4%, Fe
2O
3Content is 0.2%, TiO
2Content is 2.5%, CaO+MgO+K
2O+Na
2O content is 0.1%, and its apparent porosity is 6.4%, and bulk density is 3.12g/cm
3, cold crushing strength is 45MPa, refractoriness under load is 1600 ℃.
Claims (10)
1. ladle working lining; The ladle working lining is installed on ladle involucrum (1); Within bag wall permanent liner (2) and the bag end permanent liner (12), comprise that the flat block of end working lining refractory brick (7), bag end working lining laid on end refractory brick (6), bag basic skill or training make liner in pouring material (11), Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5), Bao Bi top working lining refractory brick (3) and bag wall coating (4); It is characterized in that; Be followed successively by the flat block of bag end working lining refractory brick (7), bag end working lining laid on end refractory brick (6) and bag basic skill or training on bag end permanent liner (12) top from bottom to top and make liner in pouring material (11), bag end working lining laid on end refractory brick (6) periphery and the space (8) of wrapping between the wall permanent liner (2) adopt pours to tamp; Inside upper part in bag wall permanent liner (2) is that Bao Bi top working lining refractory brick (3), bottom are Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5), and the bag wall is smeared the outer surface that the bed of material (4) spreads upon Bao Bi top working lining refractory brick (3), Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5); Said ladle working lining, the flowing molten iron impact zone working lining refractory brick (5) of its Bao Bi bottom is than Bao Bi top working lining refractory brick (3) thickening 20～30mm.
2. ladle working lining as claimed in claim 1 is characterized in that, said ladle working lining also comprises bag along pressing plate (9), and bag is positioned at ladle involucrum (1) top along pressing plate (9); Bag is smeared bag along smearing the bed of material (10) along pressing plate (9) top.
3. ladle working lining as claimed in claim 1; It is characterized in that; The flat block of bag end working lining refractory brick (7) thickness d is 80～120mm, and bag end working lining laid on end refractory brick (6) thickness c is 230mm～300mm, and it is 60～120mm that the bag basic skill or training makes liner in pouring material (11) thickness m;
Bao Bi top working lining refractory brick (3) thickness a is 120～140mm, and Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5) thickness b is 140～170mm;
It is 15～30mm that the bag wall is smeared the bed of material (4) thickness e;
Bag is 100～200mm along smearing the bed of material (10) thickness k;
Bao Bi bottom flowing molten iron impact zone working lining (5) height H is 800～1200mm.
4. ladle working lining as claimed in claim 3 is characterized in that, the width L that bag is pushed down Bao Bi top working lining (3) along pressing plate (9) is (1/2～2/3) a; Gap length n≤60mm at the bottom of the said bag between the periphery of working lining laid on end refractory brick (6) and the bag wall permanent liner (2).
5. ladle working lining as claimed in claim 1; It is characterized in that; Flat refractory brick (7), bag end working lining laid on end refractory brick (6), Bao Bi top working lining refractory brick (3), the Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5) built of working lining all adopts unburned brick of aluminium silicon carbide matter or the unburned brick of aluminium silicon carbide zirconium matter to build by laying bricks or stones at the bottom of the said bag.
6. ladle working lining as claimed in claim 5 is characterized in that, the unburned brick of said aluminium silicon carbide matter; Being to be primary raw material with corundum, bauxite, graphite, carborundum, is bond with phenolic resins, the not burned product that forms through low-temperature bake; By weight percentage, its Al
2O
3Content is 68～71%, and C content is 11～16%, and SiC content is 5.6～6.5%, SiO
2Content is 2.2～6.5%, Fe
2O
3Content is 0.2～1.2%, TiO
2Content is 2.5～3.5%, CaO content≤0.25%, MgO content≤0.25%, K
2O content≤0.2%, Na
2O content≤0.2%, its apparent porosity are 3.0～8.0%, and bulk density is 2.95～3.05g/cm
3, cold crushing strength is 50～55MPa, refractoriness under load is 1600～1630 ℃.
The unburned brick of said aluminium silicon carbide zirconium matter is to be primary raw material with fused alumina zirconia, bauxite, graphite, carborundum, is bond with phenolic resins, the not burned product that forms through low-temperature bake, by weight percentage, its Al
2O
3+ ZrO
2Content is 71～81%, and C content is 11～15%, and SiC content is 2.6～6.2%, SiO
2Content is 3.0～6.4%, Fe
2O
3Content is 0.2～1.2%, TiO
2Content is 1.5～3.5%, CaO content≤0.25%, MgO content≤0.25%, K
2O content≤0.2%, Na
2O content≤0.2%, its apparent porosity are 6～7.5%, and bulk density is 2.97～3.12g/cm
3, cold crushing strength is 45～55MPa, refractoriness under load is 1600～1630 ℃.
7. ladle working lining as claimed in claim 1 is characterized in that, saidly is used to wrap the basic skill or training and makes liner in pouring material (11), is made up of following material by weight percentage: 15mm ≦ granularity<the one-level alumine 8 ~ 12% of 10mm, 5mm ≦ granularity<the one-level alumine 16 ~ 20% of 10mm, 3mm ≦ granularity<the one-level alumine 8 ~ 12% of 5mm, 1mm ≦ granularity<the one-level alumine 12 ~ 15% of 3mm, 0.083mm<granularity<the one-level alumine 6 ~ 8% of 1mm, 0.074mm The special grade bauxite fine powder 8 ~ 12% of < Li Du ≦ 0.083mm, 0.083mm<granularity<the carborundum 10 ~ 12% of 1mm, Li Du ≦ 0.047mm a-Al
2O
3Micro mist 5.0 ~ 6.0%, the silicon powder 5.0 ~ 6.0% of Li Du ≦ 0.047mm, the metallic aluminium powder 3.0 ~ 4.5% of Li Du ≦ 0.165mm, pure calcium aluminate cement 3.0 ~ 4.5%, heat-resistant steel fiber 1.5～2.5%.
8. ladle working lining as claimed in claim 7 is characterized in that, said one-level alumine, by weight percentage, its Al
2O
3Content is 85 ~ 87.9%, SiO
2Content is 8 ~ 13%, Fe
2O
3Content is 0.70 ~ 1.20%, TiO
2Content is 2.5 ~ 3.5%, and CaO content is 0.15 ~ 0.65%, and MgO content is 0.10 ~ 0.25%, K
2O content is 0.10 ~ 0.20%, Na
2O content is 0.02 ~ 0.08%, and its bulk density is 3.00 ~ 3.14g.cm
-3, water absorption rate≤5%;
Said special grade bauxite, by weight percentage, its Al
2O
3Content is 88 ~ 92%, SiO
2Content is 2 ~ 8%, Fe
2O
3Content is 0.8 ~ 1.1%, TiO
2Content is 1.0 ~ 3.5%, and CaO content is 0.1 ~ 0.3%, and MgO content is 0.1 ~ 0.20%, K
2O content is 0.05 ~ 0.12%, Na
2O content is 0.01 ~ 0.06%, and its bulk density is 3.15 ~ 3.20g.cm
-3, water absorption rate≤4%.
9. ladle working lining as claimed in claim 1 is characterized in that, said bag wall coating (4) and bag are along coating (10); All form by following material by weight percentage: 1mm ≦ granularity < flint clay 15～25% of 3mm, 0.083mm < granularity < flint clay 15～25% of 1mm, 1mm ≦ granularity < one-level alumine 10～20% of 3mm; 0.083mm < granularity < the one-level alumine 6～20% of 1mm, 0.083mm < granularity < carborundum 6～10% of 1mm, the silicon powder 1.5～3.0% of special grade bauxite fine powder 5～10% Li Du ≦ 0.047mm of fused mullite fine powder 7～12% Li Du ≦ 0.074mm of Li Du ≦ 0.074mm, pure calcium aluminate cement 0.5～2.5%, sodium phosphate trimer 1.3～4.0%; Calcium lignosulfonate 0.1～0.5%, refractory fibre 0.1～0.5%.
10. the preparation method of a ladle working lining may further comprise the steps:
1) material preparation: will wrap the basic skill or training and make liner in pouring material (11), and add dried stirring 5～10 minutes in the batch mixer, and after stirring, pack subsequent use by after the described material proportion weighing; To wrap the wall coating by after the described proportioning weighing, and stir in the adding batch mixer, dried stirring 5～10 minutes after stirring, packs subsequent use;
2) bag end working lining construction is on bag end permanent liner (12) top, with unburned brick of aluminium silicon carbide matter or the unburned brick of aluminium silicon carbide zirconium matter, first brick laid on flat (7); Its thickness d is 80～120mm, and brick-on-end again (6) is built by laying bricks or stones to periphery with the center at the bag end successively; Its thickness c is 230～300mm, flat build, the laid on end brickwork joint all≤1.0mm, at last at the periphery and the peripheral space (8) of wrapping between the wall of brick-on-end; Adopting the bag basic skill or training to make the liner in pouring material tamps: the bag basic skill or training of step 1) preparation is made the liner in pouring material, add in the batch mixer, do and mix after 1～2 minute; Behind the water mixing of adding 4～5%, put in the peripheral space, adopt the vibration moulding of plug-in type vibrating head; It is fully closely knit until pours to discharge the interior bubble of pours, surfacing, natural Health preservation 4～8 hours;
3) Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5) construction; Flat block method is adopted in the unburned brick of aluminium silicon carbide matter or the unburned brick of aluminium silicon carbide zirconium matter, by down and to building brick laid on flat seam≤1.0mm by laying bricks or stones; Its thickness b is 140～170mm, and its height H is 800～1200mm;
4) Bao Bi top working lining refractory brick (3) construction is with above-mentioned step 2), its thickness a is 120～140mm;
5) the bag basic skill or training does liner in pouring material (11) construction, and the bag basic skill or training that step 1) is prepared makes the liner in pouring material, adds in the batch mixer; Do and mix after 1～2 minute, add 5～6% water mixing, put into the top of ladle working lining brick (7) then; Adopt the vibration moulding of plug-in type vibrating head, bubble is fully closely knit until pours in the discharge pours, surfacing; And guarantee that the thickness m that the bag basic skill or training makes liner in pouring material (11) is 60～120mm, natural Health preservation 12～24 hours;
6) the bag wall is smeared the bed of material (4) construction, and just the bag wall coating of step 1) preparation adds in the batch mixer; Do and mix after 1～2 minute, add the water of coating gross weight 12 ~ 15%, stirred 4 ~ 6 minutes; Stir; Adopt trowel evenly to spread upon the outer surface of Bao Bi bottom flowing molten iron impact zone working lining refractory brick (5), Bao Bi top working lining refractory brick (3) from bottom to top, its thickness e is 15～30mm, natural Health preservation 12～24 hours;
7) bag is along smearing the bed of material (10) construction, and with above-mentioned step 6), its thickness k is 100～200mm, natural Health preservation 12～24 hours, and the preparation of ladle working lining is accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208141.3A CN102728828B (en) | 2012-06-21 | 2012-06-21 | Ladle working liner and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN103736985A (en) * | 2014-01-11 | 2014-04-23 | 莱芜钢铁集团有限公司 | Steel ladle working lining and method for building slag line part of steel ladle working lining |
| CN103785820A (en) * | 2014-02-17 | 2014-05-14 | 莱芜钢铁集团有限公司 | Ladle permanent lining and manufacturing method thereof |
| CN104230357A (en) * | 2014-09-05 | 2014-12-24 | 河北丰维机械制造有限公司 | Packaging material for fabricating heat-resistant pouring ladle for cast iron and preparation method of packaging material |
| CN104387093A (en) * | 2014-10-13 | 2015-03-04 | 瑞泰科技股份有限公司 | Flow controlling water gap for production of mineral wool from blast furnace slag and production process thereof |
| WO2015043452A1 (en) * | 2013-09-29 | 2015-04-02 | 武汉钢铁(集团)公司 | Method for improving use efficiency of smelting ladle, and smelting ladle of long service life and low material consumption |
| CN105565830A (en) * | 2015-12-14 | 2016-05-11 | 武汉钢铁(集团)公司 | Composite material RH finery dipping pipe outer wrapping body and molding process thereof |
| CN106747515A (en) * | 2016-12-26 | 2017-05-31 | 中钢集团耐火材料有限公司 | A kind of large-scale three deferrizations water receptacle working lining composite and preparation method |
| CN106862547A (en) * | 2017-02-28 | 2017-06-20 | 山东钢铁股份有限公司 | A kind of bakie working lining inner lining structure for adsorbing inclusion content in melting steel |
| CN107282917A (en) * | 2017-07-25 | 2017-10-24 | 安阳钢铁股份有限公司 | Method is built by laying on a kind of new ladle and its bag edge |
| CN107344860A (en) * | 2017-07-18 | 2017-11-14 | 攀枝花市昌宁冶金材料有限责任公司 | Mould material and pouring procedure for hot-metal bottle |
| CN107999732A (en) * | 2017-11-07 | 2018-05-08 | 河钢股份有限公司承德分公司 | Ultra-low carbon coating tundish builds by laying method |
| CN108083825A (en) * | 2017-12-26 | 2018-05-29 | 河南欣昌耐材股份有限公司 | A kind of regeneration ladle permanent layer quick-drying gravity flow pouring material |
| CN108117401A (en) * | 2017-12-26 | 2018-06-05 | 河南欣昌耐材股份有限公司 | A kind of ladle permanent layer quick-drying gravity flow pouring material |
| CN108637231A (en) * | 2018-07-30 | 2018-10-12 | 广东中天创展球铁有限公司 | A kind of spheroidising ladle and its manufacture craft |
| CN110449568A (en) * | 2019-08-27 | 2019-11-15 | 北京利尔高温材料股份有限公司 | A kind of compound packet bottom construction technology of ladle |
| CN111014634A (en) * | 2019-12-31 | 2020-04-17 | 广西玉柴机器股份有限公司 | Casting vermicular ladle building method |
| CN112264610A (en) * | 2020-09-30 | 2021-01-26 | 广东韶钢松山股份有限公司 | Hot-metal bottle and preparation method thereof |
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| CN112645698A (en) * | 2021-01-15 | 2021-04-13 | 北京瑞尔非金属材料有限公司 | Aluminum titanium silicon carbide composite refractory castable for iron-making blast furnace |
| CN113416067A (en) * | 2021-06-15 | 2021-09-21 | 武汉钢铁有限公司 | Anti-oxidation impact-resistant castable for ladle, preparation method and ladle |
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| WO2015043452A1 (en) * | 2013-09-29 | 2015-04-02 | 武汉钢铁(集团)公司 | Method for improving use efficiency of smelting ladle, and smelting ladle of long service life and low material consumption |
| CN103736985A (en) * | 2014-01-11 | 2014-04-23 | 莱芜钢铁集团有限公司 | Steel ladle working lining and method for building slag line part of steel ladle working lining |
| CN103736985B (en) * | 2014-01-11 | 2016-06-08 | 莱芜钢铁集团有限公司 | A kind of ladle working lining and slag lining thereof build by laying method |
| CN103785820A (en) * | 2014-02-17 | 2014-05-14 | 莱芜钢铁集团有限公司 | Ladle permanent lining and manufacturing method thereof |
| CN103785820B (en) * | 2014-02-17 | 2016-02-10 | 莱芜钢铁集团有限公司 | A kind of ladle permanent liner and preparation method thereof |
| CN104230357A (en) * | 2014-09-05 | 2014-12-24 | 河北丰维机械制造有限公司 | Packaging material for fabricating heat-resistant pouring ladle for cast iron and preparation method of packaging material |
| CN104230357B (en) * | 2014-09-05 | 2016-01-27 | 河北丰维机械制造有限公司 | A kind of packing material for making the high temperature resistant pouring ladle of cast iron and compound method thereof |
| CN104387093A (en) * | 2014-10-13 | 2015-03-04 | 瑞泰科技股份有限公司 | Flow controlling water gap for production of mineral wool from blast furnace slag and production process thereof |
| CN104387093B (en) * | 2014-10-13 | 2016-08-24 | 瑞泰科技股份有限公司 | A kind of mouth of a river and production technology thereof producing mineral wool flow control for blast furnace slag |
| CN105565830A (en) * | 2015-12-14 | 2016-05-11 | 武汉钢铁(集团)公司 | Composite material RH finery dipping pipe outer wrapping body and molding process thereof |
| CN105565830B (en) * | 2015-12-14 | 2018-12-04 | 武汉钢铁集团耐火材料有限责任公司 | Composite RH refining furnace dip pipe encasing and its moulding process |
| CN106747515A (en) * | 2016-12-26 | 2017-05-31 | 中钢集团耐火材料有限公司 | A kind of large-scale three deferrizations water receptacle working lining composite and preparation method |
| CN106862547A (en) * | 2017-02-28 | 2017-06-20 | 山东钢铁股份有限公司 | A kind of bakie working lining inner lining structure for adsorbing inclusion content in melting steel |
| CN106862547B (en) * | 2017-02-28 | 2019-04-23 | 山东钢铁股份有限公司 | A kind of bakie working lining inner lining structure adsorbing inclusion content in melting steel |
| CN107344860A (en) * | 2017-07-18 | 2017-11-14 | 攀枝花市昌宁冶金材料有限责任公司 | Mould material and pouring procedure for hot-metal bottle |
| CN107344860B (en) * | 2017-07-18 | 2021-03-23 | 攀枝花市昌宁冶金材料有限责任公司 | Pouring material and pouring method for hot-metal ladle |
| CN107282917A (en) * | 2017-07-25 | 2017-10-24 | 安阳钢铁股份有限公司 | Method is built by laying on a kind of new ladle and its bag edge |
| CN107282917B (en) * | 2017-07-25 | 2019-08-09 | 安阳钢铁股份有限公司 | A kind of novel ladle and its packet are along building by laying method |
| CN107999732A (en) * | 2017-11-07 | 2018-05-08 | 河钢股份有限公司承德分公司 | Ultra-low carbon coating tundish builds by laying method |
| CN107999732B (en) * | 2017-11-07 | 2019-10-18 | 河钢股份有限公司承德分公司 | Ultra-low carbon coating tundish builds by laying method |
| CN108117401A (en) * | 2017-12-26 | 2018-06-05 | 河南欣昌耐材股份有限公司 | A kind of ladle permanent layer quick-drying gravity flow pouring material |
| CN108117401B (en) * | 2017-12-26 | 2020-09-29 | 河南欣昌耐材股份有限公司 | Quick-drying self-flow castable for permanent layer of ladle |
| CN108083825A (en) * | 2017-12-26 | 2018-05-29 | 河南欣昌耐材股份有限公司 | A kind of regeneration ladle permanent layer quick-drying gravity flow pouring material |
| CN108637231B (en) * | 2018-07-30 | 2023-09-12 | 广东中天创展球铁有限公司 | Ladle for spheroidizing and manufacturing process thereof |
| CN108637231A (en) * | 2018-07-30 | 2018-10-12 | 广东中天创展球铁有限公司 | A kind of spheroidising ladle and its manufacture craft |
| CN110449568A (en) * | 2019-08-27 | 2019-11-15 | 北京利尔高温材料股份有限公司 | A kind of compound packet bottom construction technology of ladle |
| CN112537963A (en) * | 2019-09-20 | 2021-03-23 | 本钢板材股份有限公司 | Spraying method for cleaning slag on edge of molten iron tank |
| CN111014634A (en) * | 2019-12-31 | 2020-04-17 | 广西玉柴机器股份有限公司 | Casting vermicular ladle building method |
| CN112264610A (en) * | 2020-09-30 | 2021-01-26 | 广东韶钢松山股份有限公司 | Hot-metal bottle and preparation method thereof |
| CN112266236A (en) * | 2020-10-19 | 2021-01-26 | 北京瑞尔非金属材料有限公司 | Aluminum-titanium composite refractory shaped product for iron-making blast furnace |
| CN112321284A (en) * | 2020-10-28 | 2021-02-05 | 北京瑞尔非金属材料有限公司 | Aluminum-titanium composite refractory castable for iron-making blast furnace |
| CN114472873A (en) * | 2020-11-13 | 2022-05-13 | 宝山钢铁股份有限公司 | Slag ladle opening preventing adhesion of electric furnace ladle and construction method thereof |
| CN112645698A (en) * | 2021-01-15 | 2021-04-13 | 北京瑞尔非金属材料有限公司 | Aluminum titanium silicon carbide composite refractory castable for iron-making blast furnace |
| CN113416067A (en) * | 2021-06-15 | 2021-09-21 | 武汉钢铁有限公司 | Anti-oxidation impact-resistant castable for ladle, preparation method and ladle |
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