CN106278298A - Separator material for casting residue slag pot grid and preparation method thereof - Google Patents
Separator material for casting residue slag pot grid and preparation method thereof Download PDFInfo
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- CN106278298A CN106278298A CN201610554526.3A CN201610554526A CN106278298A CN 106278298 A CN106278298 A CN 106278298A CN 201610554526 A CN201610554526 A CN 201610554526A CN 106278298 A CN106278298 A CN 106278298A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5037—Clay, Kaolin
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
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- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a kind of separator material for casting residue slag pot grid and preparation method thereof, the raw materials by weight portion of described separator material is made up of the converter slag of 55～65 parts, the tundish of the 15～25 parts additive of rear magnesia or magnesite-dolomite refractories, the blast furnace granulated slag of 10～15 parts, the remaining slag of casting of 10～15 parts and 0～3.1 part than meter.The present invention passes through with iron and steel enterprise's solid waste as main raw material(s) and the slag pot grid dividing plate of preparation uses at the internal slag ladle of iron and steel enterprise, the inner loop achieving enterprise's solid waste utilizes, not only save the cost of raw material, alleviate the transport of iron and steel enterprise's solid waste, the environmental issue of landfill, also considerably reduce raw-material cost of transportation simultaneously, avoid the pollution to casting residual molten steel of the external source harmful element, it is achieved in casting residue, the high-quality of slag steel recycles.
Description
Technical field
The present invention relates to metallurgical slag technical field of comprehensive utilization, in particular to a kind of dividing plate for casting residue slag pot grid
Material and preparation method thereof.
Background technology
During continuous-casting of steel billet, in order to ensure the cleanliness factor of continuous casting steel, by remaining portion in ladle when ladle changes bag
Casting residual molten steel slag remaining with casting, wherein, casts residual molten steel about 0.5～1 ton, and along with more than the casting in ladle slag together pour slag into
Tank, with slag ladle cooled and solidified.Along with constantly changing the carrying out of sequence casting, ladle casting residue discontinuous pours slag ladle into until slag ladle dress
Full；Owing to deslagging is short for interval time, cause residual steel to mix solidification with slag, form big fast slag steel stone roller.Owing to casting residue comes
Coming from the slag on liquid level after processing outside molten steel stove, slag ingredient is different from vessel slag.In order to fully reclaim the steel in casting residue, respectively
Individual iron and steel enterprise all establishes casting residue and processes recvery facility；By off-line processed such as oxyacetylene metal-cutting hammering method and explosion hammering methods
Method, it is achieved broken, the cutting of bulk slag steel, processed, reaches into stove steel scrap requirement, completes returning of metals resources in casting residue
Receive and utilize.But, it is low to there is treatment effeciency in this processing method, and potential safety hazard is high, the deficiencies such as airborne dust, noise and vibration are big, simultaneously
Gas flame cutting process energy resource consumption is big, and environmental pollution is very serious, and part high-quality slag steel resource becomes slag and runs off.
For casting residue routine hammer pound, flame cutting process deficiency, with reduce intractability, improve treatment effeciency, change
For the purpose of kind operating environments etc., domestic relevant scholar turns over tank slag steel (sticking together) yardstick from reducing casting residue, has invented slag ladle pre-
That puts grid gives technology, by the grid assembled preset in slag ladle, carries out liquid and awards slag fusion, by grid segmentation point
From, it is achieved slag steel solidifying body is along the disintegration of flase floor, it is to avoid the generation of big slag steel (sticking together).By just carrying out more than in slag ladle
Turn over fallers hammer, remove casting Yu Gang surface recrement and the magnechuck casting residue to dropping hammer, after slag hitting and carry out selected, it is achieved slag steel
Separate, thus increase substantially the economic and technique level of Slag treatment and comprehensive utilization, overcome processed conventionally deficiency.Such as: public
The Chinese invention patent of cloth CN103555868A discloses a kind of processing technique applying grid to process casting residue, including carrying out
The assembling of grid, carries out casting residue tank spraying drying pot, pads Slag treatment, the lifting of grid, deslagging, cool down recrement, will
Carry out turning over fallers hammer to process, carry out slag hitting with steel more than the Cinder crusher casting to dropping hammer, the casting to dropping hammer, after slag hitting with magnechuck
Recrement carries out selected, and residue tailings is transported to vessel slag sorting line and sorts.The China of Authorization Notice No. CN201455257U
Utility model discloses a kind of automatic separating device for steelmaking casting slag steel, is used for splitting the slag steel (liquid in large-scale slag slag ladle
Molten steel), by stem stem hoop dividing plate radially dividing plate with smear material and form.Wherein, stem stem, hoop dividing plate, radially dividing plate splice point
Weldering connects, and hoop dividing plate, radially dividing plate are all with hoisting port.Dividing plate uses cast iron, cast steel or ordinary carbon steel to make, it is achieved device
Be recycled for multiple times；The material of smearing of apparatus surface uses slag to make, and will not additionally increase novel substance and enter slag, again may be used
It is without prejudice with protection segmenting device；The solid slag steel grade using this device to produce after processing can reach more than 98%, permissible
Directly return steel-making to use as steel scrap.The Chinese invention patent of Authorization Notice No. CN102220439B discloses a kind of casting residue
The production method of steel process slag ladle partition plate, with slag, refractory material, cement and reinforcing bar as raw material；By slag and refractory material
It is respectively charged in the batch hopper of proportioning machine, is poured into by the raw material bucket of blender in the agitator tank of blender after belt weighs,
Cement uses conveying worm conveying, after weighing, enters in the agitator tank of blender and stirs.By hopper by clapboard raw material
It is transported in casting machine.Raw material is poured in the middle of mould by casting machine, floating after, mould is transported under stacking machine by steam-cured dolly
End.Mould Code is placed on steam-cured dolly by stacking machine, then pushes health preserving in health preserving kiln.Health preserving complete after dividing plate from kiln body another
End is released, and takes mould apart, is picked up by dividing plate with stacking machine and is deposited on steam-cured dolly, is then transported to finished product stockyard and piles up, from
So health preserving.The dividing plate that health preserving is good uses electric welding mode to weld together with dividing plate, forms a whole set of dividing plate, makes for steel smelting casting residue tank
With；Wherein, separator material consists of according to the raw material of percentage by weight: slag accounts for 50～65%, refractory material account for 20～35%,
Cement accounts for 10～20%, and reinforcing bar accounts for 3～5%, it is possible to use aggregate to substitute slag.The China of publication number CN1752217A
Patent of invention discloses a kind of steel block cutting device and material, and wherein, steel block cutting device is by several segmentation cylinders and some
Individual fragmenting plate is constituted, and segmentation cylinder and fragmenting plate are equipped with multiple gap, and segmentation cylinder is with fragmenting plate by gap grafting even
Connect, steel slag tank inner space is divided into multiple little space, it is achieved the slag steel segmentation in steel slag tank；Segmenting device prepares material
Raw material weight percentage ratio consists of: Binder Materials 10～25, fine aggregate 25～35, coarse aggregate 40～65, additional 6～12%
Water；Wherein fine aggregate and coarse aggregate are slag, Binder Materials by slag 90～95% and Gypsum Fibrosum 5～10% be mixed and finely ground preparation or
Slag 35～55%, slag 40～55% and Gypsum Fibrosum 5～10% are mixed and finely ground preparation.Additionally, the most multinomial patent discloses not
Slag segmenting device with version." Cheng Dongbo, Zhang Jian, Jin Qiang, Baosteel casting residue online treatment utilizes new with grid document
Engineering is studied, bao steel technology, and 2010, No3 ", the present situation processed based on Baosteel casting residue, create grid new technique, logical
Crossing preset metallurgical slag concrete grating manufacture (demarcation strip) in slag ladle, slag processes big tank, and to be naturally divided into several little
Tank, reaches the purpose preventing " large slag " to generate in slag ladle；Wherein, in tank, preset grid manufacture uses metallurgical slag concrete
It is prefabricated into supporting separation precoated plate assembled；Metallurgical slag concrete with clinker-free steel slag cement (adding appropriate exciting agent) is
Binder Materials, with the metallurgical slag of different size as concrete aggregate, after mix-design cast-in-site or batch production prefabricated and
Become.By the integral application at Baosteel, from source, not only crack the difficult problem that big slag steel (ferrum) is disintegrated naturally, solve simultaneously
The online efficient circulation Utilizing question of big slag steel (ferrum), slag steel grade is brought up to 90% by 70%, and metal recovery utilization rate improves
5%, cost-effective 40 yuan of ton steel, the composition of grid material and impact on slag steel harmful components thereof but document is not reported for work.
Summary is visible, and current slag segmenting device version is more, by segmenting device preset in slag ladle, real
Now casting residue in slag ladle is split, it is to avoid the process inconvenience problem being formed and bringing of large slag, reach the efficient of casting residue
Process, slag recycles with the classification of metal, improve the comprehensive purpose such as recovery rate of iron and benefits of production and management.But existing skill
In art, metal segmenting device is due to high temperature deformation, it is difficult to be recycled for multiple times, and causes manufacturing cost high；With slag for the most former
The disposable segmenting device of material preparation, natural burns till refractory raw material, cement or Gypsum Fibrosum bond material and metallic steel because adding
Muscle reinforcing material, limits the further reduction of segmenting device manufacturing cost, meanwhile, the impurity in ordinary cement, especially stone
Sulfur content in cream is high, pollutes the remaining molten steel in casting residue, is unfavorable for that the high-quality of metal in casting residue recycles.This
Outward, pertinent literature reports the application effect that grid technology is excellent, but the composition of grid material of reporting for work the most in detail and remaining to casting
The impact of slag steel harmful element in slag.Thus, it is necessary to carry out segmenting device further and prepare the research of material.
Summary of the invention
It is an object of the invention to provide improvement deficiency of the prior art, it is provided that a kind of for casting residue slag pot grid
Separator material and preparation method thereof.
For achieving the above object, a kind of separator material for casting residue slag pot grid that the present invention provides, described dividing plate
The raw materials by weight portion of material than meter by the converter slag of 55～65 parts, the tundish of 15～25 parts with rear magnesia or magnesium is calcareous
Refractory material, the blast furnace granulated slag of 10～15 parts, the remaining slag of casting of 10～15 parts and the additive composition of 0～3.1 part.
Further, described converter slag divides by granularity is 10mm ＜ granularity≤20mm, 5mm ＜ granularity≤10mm and 1mm
＜ granularity≤5mm tri-granularity level, is 100% calculating by converter slag, and the corresponding percentage by weight of each granularity level is 15
～20%, 25～35% and 40～60%.
Yet further, described liner in dundish is through Regeneration Treatment with rear magnesia or magnesite-dolomite refractories
Used refractory, is divided into 0.088mm ＜ granularity≤1mm and two granularity level of granularity≤0.088mm, by liner in dundish
Being 100% calculating with rear magnesia or magnesite-dolomite refractories, the corresponding percentage by weight of each granularity level is 40～60% and 40
～60%.
Yet further, described blast furnace granulated slag granularity is≤0.088mm, and more than described casting, slag is after casting residue extracts metal
Remaining slag, granularity is≤0.088mm.
Yet further, described additive by the tripolycyanamide of 0～0.8 part, the wooden calcium sulfonate of 0～0.8 part, 0～1.5
The waste paper fibre of part or Plant fiber's composition.
Yet further, described waste paper fibre is the waste paper scrap that shredder is pulverized, and Plant fiber pulverizes for pulverizer
Short fiber of plant.
Yet further, the raw materials by weight portion of described separator material than meter by 60 parts converter slag, in 20 parts
Between bag with rear magnesia or magnesite-dolomite refractories, the blast furnace granulated slag of 10 parts, 10 parts casting more than slag, the tripolycyanamide of 0.4 part,
The wooden calcium sulfonate of 0.4 part, the waste paper fibre of 1.0 parts or Plant fiber's composition；
Wherein, described converter slag divides by granularity is 10mm ＜ granularity≤20mm, 5mm ＜ granularity≤10mm and 1mm ＜ grain
Tri-granularity level of degree≤5mm, are 100% calculating by converter slag, the corresponding percentage by weight of each granularity level is 15%,
30% and 55%；
Described liner in dundish is fire proofed wood after the use of Regeneration Treatment with rear magnesia or magnesite-dolomite refractories
Material, is divided into 0.088mm ＜ granularity≤1mm and two granularity level of granularity≤0.088mm, by liner in dundish with rear magnesia or
Magnesite-dolomite refractories is 100% calculating, and the corresponding percentage by weight of each granularity level is 50% and 50%；
Described blast furnace granulated slag granularity is≤0.088mm, and more than described casting, slag is the remaining slag after casting residue extracts metal,
Granularity is≤0.088mm.
The invention provides the preparation method of a kind of separator material for casting residue slag pot grid, comprise the following steps:
1) converter slag is crushed, magnetic separation, screening, it is thus achieved that 10mm ＜ granularity≤20mm, 5mm ＜ granularity≤10mm and
The converter slag of 1mm ＜ granularity≤tri-granularity level of 5mm, and the corresponding percentage by weight of each granularity level be 15～20%,
25～35% and 40～60%；
2) to liner in dundish with rear magnesia or magnesite-dolomite refractories advanced row hand picking, then carry out crushing, magnetic
Choosing, screening and grinding, magnetic separation, screening, it is thus achieved that 0.088mm ＜ granularity≤1mm and two granularity level of granularity≤0.088mm
Liner in dundish is with rear magnesia or magnesite-dolomite refractories；And each corresponding percentage by weight of granularity level is 40～60% He
40～60%；
3) slag remaining with casting to blast furnace granulated slag carries out grinding, magnetic separation, screening, and granularity is the≤blast furnace water of 0.088mm respectively
Slag and granularity be≤casting of 0.088mm more than slag；
4) meter weighs the converter slag of 55～65 parts, the rear magnesia or magnesium calcium of the tundish of 15～25 parts by ratio of weight and the number of copies
Fire resistant materials, the blast furnace granulated slag of 10～15 parts, the remaining slag of casting of 10～15 parts, the tripolycyanamide of 0～0.8 part, 0～0.8 part
Wooden calcium sulfonate, the waste paper fibre of 0～1.5 part or Plant fiber；
5) by the liner in dundish of above-mentioned granularity≤0.088mm with rear magnesia or magnesite-dolomite refractories, blast furnace granulated slag,
Casting remaining slag, tripolycyanamide, wooden calcium sulfonate, add flour mill and carry out common mill 30 ± 5min, it is thus achieved that be made up of above-mentioned raw materials
Pulverizing material altogether；
6) use shredder that the waste paper reclaimed is pulverized, it is thus achieved that required waste paper fibre；Or use pulverizer to receipts
The plant of collection is pulverized, and obtains required Plant fiber.
7) by common pulverizing material, waste paper fibre or Plant fiber, converter slag, the middle job contract of 0.088mm ＜ granularity≤1mm
Serving as a contrast and stir in forced stirrer with rear magnesia or magnesite-dolomite refractories, packaging obtains separator material.
Present invention also offers the using method of a kind of separator material for casting residue slag pot grid, including following step
Rapid:
1) separator material using casting residue slag pot grid replaces conventional separator material, according to conventional vibrating casting technique
Carry out the preparation of lattice partition, after the outer natural curing of maintenance in mould and film, obtain dividing plate moulding by casting body；
2) dip-coating or external coating or the method for surface spraying coating against binding slags are taked, in dividing plate moulding by casting surface system
The slag adhesion coating that standby uniformly continuous is fine and close, wherein, the raw material weight percentage ratio of coating against binding slags consists of the life of 80～90%
Calx and 10～the calcium-base bentonite of 20%, external adding water regulation stirs and prepares coating；
3) after the dip-coating of dividing plate moulding by casting surface or brushing or spraying coating against binding slags, naturally dry in the shade 24 hours, then 105
～120 DEG C toast 24 hours, it is thus achieved that required partition component.
4) carry out assembling and the arrangement of slag pot grid according to common process, and come into operation.
The beneficial effects of the present invention is:
1) pass through with iron and steel enterprise's solid waste as main raw material(s) and the slag pot grid dividing plate of preparation is looked forward at iron and steel
Portion's slag ladle uses in the industry, it is achieved that the inner loop of enterprise's solid waste utilizes, and has not only saved the cost of raw material, alleviates steel
The transport of ferrum enterprise solid waste, the environmental issue of landfill, also considerably reduce raw-material cost of transportation simultaneously, it is to avoid
The external source harmful element pollution to casting residual molten steel, it is achieved in casting residue, the high-quality of slag steel recycles.
2) by the setting of different material granularmetric composition, improve the accumulation compactness of separator material, improve diaphragm strength with
Resisting breakage ability.
3) by the remaining slag of casting, the liner in dundish profit of the high alkalinity materials such as rear magnesia or magnesite-dolomite refractories
With, the beneficially removal of harmful element in casting residual molten steel in slag ladle, improves the quality reclaiming slag steel in casting residue.
4) by waste paper fibre or the interpolation of Plant fiber, improve resistance to mechanical impact and the thermal shock ability of dividing plate, prevent
Dividing plate baking, carrying and grid assemble and the breakage of initialization process in slag ladle, falling after simultaneously reducing slag ladle casting residue overturning
Hammer is peeled off, and improves the treatment effeciency of casting residue.
5) by the enforcement of each step of preparation method of the present invention, it is ensured that the comprehensive serviceability of separator material is with stable
Produce, the common pulverizing material that especially plurality of raw materials is ground altogether, it is achieved that the liner in dundish of granularity≤0.088 with rear magnesia or
More than magnesite-dolomite refractories, blast furnace granulated slag and casting slag and the raw material such as tripolycyanamide, wooden calcium sulfonate be sufficiently mixed dispersion with
Mechanical activation, promotes hydration reaction and the reciprocal action of different bonding component, improve tripolycyanamide, wooden calcium sulfonate mixing equal
Even property, strengthening tripolycyanamide, the moistening of wooden calcium sulfonate and dispersion effect, improve separator material bond strength.
6) by using method of the present invention, it is ensured that separator material of the present invention is applied smoothly, especially dividing plate moulding by casting
Surface slag adhesion coating is constituted with the component of coating against binding slags, not only hinders the adhesion of casting residue and dividing plate, strengthens simultaneously
The coating against binding slags purification to casting residual molten steel, the stripping performance that drops hammer of casting residue after reaching to improve slag ladle overturning, carries
The cleanliness factor of high casting residual molten steel and reclaim the purpose such as level of quality of steel.
By the set of above-mentioned positive effect, it is finally reached that with low cost, raw material sources is wide, preparation is simple, usability
The targets such as energy is excellent.
Detailed description of the invention
In order to preferably explain the present invention, it is further elucidated with the main contents of the present invention below in conjunction with specific embodiment, but
Present disclosure is not limited solely to following example.
Embodiment 1
For the preparation method of the separator material 1 of casting residue slag pot grid, comprise the following steps:
1) converter slag is crushed, magnetic separation, screening, it is thus achieved that 10mm ＜ granularity≤20mm, 5mm ＜ granularity≤10mm and
The converter slag of 1mm ＜ granularity≤tri-granularity level of 5mm, and the corresponding percentage by weight of each granularity level is 15%, 30%
With 55%；
2) to liner in dundish with rear magnesia or magnesite-dolomite refractories advanced row hand picking, then carry out crushing, magnetic
Choosing, screening and grinding, magnetic separation, screening, it is thus achieved that 0.088mm ＜ granularity≤1mm and two granularity level of granularity≤0.088mm
Liner in dundish is with rear magnesia or magnesite-dolomite refractories；And each corresponding percentage by weight of granularity level is 50% He
50%；
3) slag remaining with casting to blast furnace granulated slag carries out grinding, magnetic separation, screening, and granularity is the≤blast furnace water of 0.088mm respectively
Slag and granularity be≤casting of 0.088mm more than slag；
4) converter slag of 60 parts, the tundish of 20 parts are weighed with rear magnesia or magnesium is calcareous fire-resistant by above-mentioned ratio of weight and number
Material, the blast furnace granulated slag of 10 parts, the remaining slag of casting of 10 parts, the tripolycyanamide of 0.4 part, the wooden calcium sulfonate of 0.4 part, 1.0 parts
Waste paper fibre or Plant fiber；
5) by the liner in dundish of above-mentioned granularity≤0.088mm with rear magnesia or magnesite-dolomite refractories, blast furnace granulated slag,
Casting remaining slag, tripolycyanamide, wooden calcium sulfonate, add flour mill and carry out common mill 30 ± 5min, it is thus achieved that be made up of above-mentioned raw materials
Pulverizing material altogether；
6) use shredder that the waste paper reclaimed is pulverized, it is thus achieved that required waste paper fibre；Or use pulverizer to receipts
The plant of collection is pulverized, and obtains required Plant fiber.
7) by common pulverizing material, waste paper fibre or Plant fiber, converter slag, the middle job contract of 0.088mm ＜ granularity≤1mm
Serving as a contrast and stir in forced stirrer with rear magnesia or magnesite-dolomite refractories, packaging obtains separator material 1.
In above-mentioned raw materials, waste paper fibre is that the waste paper scrap pulverized of shredder, the plant pulverized for pulverizer of Plant fiber are short
More than fiber, described casting, slag is the remaining slag after casting residue extracts metal.
The using method of the above-mentioned separator material 1 for casting residue slag pot grid, comprises the following steps:
1) separator material using casting residue slag pot grid replaces conventional separator material, according to conventional vibrating casting technique
Carry out the preparation of lattice partition, after the outer natural curing of maintenance in mould and film, obtain dividing plate moulding by casting body；
2) dip-coating or external coating or the method for surface spraying coating against binding slags are taked, in dividing plate moulding by casting surface system
The slag adhesion coating that standby uniformly continuous is fine and close, wherein, the raw material weight percentage ratio of coating against binding slags consists of the life of 80～90%
Calx and 10～the calcium-base bentonite of 20%, external adding water regulation stirs and prepares coating；
3) after the dip-coating of dividing plate moulding by casting surface or brushing or spraying coating against binding slags, naturally dry in the shade 24 hours, then 105
～120 DEG C toast 24 hours, it is thus achieved that required partition component.
4) carry out assembling and the arrangement of slag pot grid according to common process, and come into operation.
Embodiment 2
Separator material 2 preparation method of the present embodiment and using method are substantially the same manner as Example 1, and difference is:
For casting residue slag pot grid separator material 2 raw materials by weight portion than weigh 55 parts converter slag, 15
Part tundish be the≤blast furnace granulated slag of 0.088mm, the granularity of 15 parts by the granularity of rear magnesia or magnesite-dolomite refractories, 15 parts
For≤remaining the slag of 0.088mm casting；
Wherein, converter slag divide by granularity be 10mm ＜ granularity≤20mm, 5mm ＜ granularity≤10mm and 1mm ＜ granularity≤
Tri-granularity level of 5mm, are 100% calculating by converter slag, and the corresponding percentage by weight of each granularity level is 20%, 35% and
45%.
Liner in dundish is the used refractory through Regeneration Treatment with rear magnesia or magnesite-dolomite refractories, is divided into
0.088mm ＜ granularity≤1mm and two granularity level of granularity≤0.088mm, by liner in dundish with rear magnesia or magnesium is calcareous
Refractory material is 100% calculating, and the corresponding percentage by weight of each granularity level is 40% and 60%.
Embodiment 3
Separator material 3 preparation method of the present embodiment and using method are substantially the same manner as Example 1, and difference is:
For casting residue slag pot grid separator material 3 raw materials by weight portion than weigh 65 parts converter slag, 15
Part tundish be the≤blast furnace granulated slag of 0.088mm, the granularity of 15 parts by the granularity of rear magnesia or magnesite-dolomite refractories, 15 parts
Fine for the remaining slag of≤0.088mm casting, the tripolycyanamide of 0.8 part, the wooden calcium sulfonate of 0.8 part, the waste paper fibre of 1.5 parts or plant
Dimension；
Wherein, converter slag divide by granularity be 10mm ＜ granularity≤20mm, 5mm ＜ granularity≤10mm and 1mm ＜ granularity≤
Tri-granularity level of 5mm, are 100% calculating by converter slag, and the corresponding percentage by weight of each granularity level is 15%, 25% and
60%.
Liner in dundish is the used refractory through Regeneration Treatment with rear magnesia or magnesite-dolomite refractories, is divided into
0.088mm ＜ granularity≤1mm and two granularity level of granularity≤0.088mm, by liner in dundish with rear magnesia or magnesium is calcareous
Refractory material is 100% calculating, and the corresponding percentage by weight of each granularity level is 60% and 40%.
Other unspecified part is prior art.Although above-described embodiment is made that detailed retouching to the present invention
State, but its a part of embodiment that is only the present invention rather than all embodiment, people can also according to the present embodiment without
Obtaining other embodiments under creative premise, these embodiments broadly fall into scope.
Claims (9)
1. the separator material for casting residue slag pot grid, it is characterised in that: the raw material of described separator material is by weight
Number than meter by the converter slag of 55～65 parts, the tundish of 15～25 parts with rear magnesia or magnesite-dolomite refractories, 10～15 parts
Blast furnace granulated slag, the remaining slag of casting of 10～15 parts and the additive composition of 0～3.1 part.
The most according to claim 1 for the separator material of casting residue slag pot grid, it is characterised in that: described converter slag divides
It is 10mm ＜ granularity≤20mm, 5mm ＜ granularity≤10mm and 1mm ＜ granularity≤5mm tri-granularity level by granularity, by converter steel
Slag is 100% calculating, and the corresponding percentage by weight of each granularity level is 15～20%, 25～35% and 40～60%.
Separator material for casting residue slag pot grid the most according to claim 1 or claim 2, it is characterised in that: described centre
Bag working lining is the used refractory through Regeneration Treatment with rear magnesia or magnesite-dolomite refractories, is divided into 0.088mm ＜ grain
Degree≤1mm and two granularity level of granularity≤0.088mm, by liner in dundish with rear magnesia or magnesite-dolomite refractories be
100% calculates, and the corresponding percentage by weight of each granularity level is 40～60% and 40～60%.
Separator material for casting residue slag pot grid the most according to claim 1 or claim 2, it is characterised in that: described blast furnace water
Slag particle degree is≤0.088mm, and more than described casting, slag is the remaining slag after casting residue extracts metal, and granularity is≤0.088mm.
Separator material for casting residue slag pot grid the most according to claim 1 or claim 2, it is characterised in that: described additive
It is made up of the tripolycyanamide of 0～0.8 part, the wooden calcium sulfonate of 0～0.8 part, the waste paper fibre of 0～1.5 part or Plant fiber.
The most according to claim 5 for the separator material of casting residue slag pot grid, it is characterised in that: described waste paper fibre
The waste paper scrap pulverized for shredder, the short fiber of plant that Plant fiber pulverizes for pulverizer.
The most according to claim 1 for the separator material of casting residue slag pot grid, it is characterised in that: described separator material
Raw materials by weight portion than meter by the converter slag of 60 parts, the tundish of 20 parts with rear magnesia or magnesite-dolomite refractories, 10 parts
Blast furnace granulated slag, the remaining slag of casting of 10 parts, the tripolycyanamide of 0.4 part, the wooden calcium sulfonate of 0.4 part, the waste paper fibre of 1.0 parts or
Plant fiber forms；
Wherein, described converter slag divide by granularity be 10mm ＜ granularity≤20mm, 5mm ＜ granularity≤10mm and 1mm ＜ granularity≤
Tri-granularity level of 5mm, are 100% calculating by converter slag, and the corresponding percentage by weight of each granularity level is 15%, 30% and
55%；
Described liner in dundish is the used refractory through Regeneration Treatment with rear magnesia or magnesite-dolomite refractories, point
For 0.088mm ＜ granularity≤1mm and two granularity level of granularity≤0.088mm, by liner in dundish with rear magnesia or magnesium calcium
Fire resistant materials is 100% calculating, and the corresponding percentage by weight of each granularity level is 50% and 50%；
Described blast furnace granulated slag granularity is≤0.088mm, and more than described casting, slag is the remaining slag after casting residue extracts metal, granularity
For≤0.088mm.
8. the preparation method for the separator material of casting residue slag pot grid, it is characterised in that: comprise the following steps:
1) converter slag is crushed, magnetic separation, screening, it is thus achieved that 10mm ＜ granularity≤20mm, 5mm ＜ granularity≤10mm and 1mm
The converter slag of ＜ granularity≤tri-granularity level of 5mm, and the corresponding percentage by weight of each granularity level be 15～20%, 25～
35% and 40～60%；
2) to liner in dundish with rear magnesia or magnesite-dolomite refractories advanced row hand picking, then carry out crushing, magnetic separation, sieve
Divide and grinding, magnetic separation, screening, it is thus achieved that 0.088mm ＜ granularity≤1mm and the centre of two granularity level of granularity≤0.088mm
Bag working lining is with rear magnesia or magnesite-dolomite refractories；And each corresponding percentage by weight of granularity level be 40～60% and 40～
60%；
3) slag remaining with casting to blast furnace granulated slag carries out grinding, magnetic separation, screening, respectively granularity be≤blast furnace granulated slag of 0.088mm and
Granularity is≤casting of 0.088mm more than slag；
4) meter weighs the converter slag of 55～65 parts, the tundish of 15～25 parts with rear magnesia or magnesium is calcareous resistance to by ratio of weight and the number of copies
Fire material, the blast furnace granulated slag of 10～15 parts, casting remaining slag, the tripolycyanamide of 0～0.8 part, the wood of 0～0.8 part of 10～15 parts
Matter sulfoacid calcium, the waste paper fibre of 0～1.5 part or Plant fiber；
5) by the liner in dundish of above-mentioned granularity≤0.088mm with more than rear magnesia or magnesite-dolomite refractories, blast furnace granulated slag, casting
Slag, tripolycyanamide, wooden calcium sulfonate, add flour mill and carry out common mill 30 ± 5min, it is thus achieved that the common mill being made up of above-mentioned raw materials
Powder；
6) use shredder that the waste paper reclaimed is pulverized, it is thus achieved that required waste paper fibre；Or use pulverizer to collection
Plant is pulverized, and obtains required Plant fiber；
7) by common pulverizing material, waste paper fibre or Plant fiber, converter slag, the liner in dundish of 0.088mm ＜ granularity≤1mm
Stirring in forced stirrer with rear magnesia or magnesite-dolomite refractories, packaging obtains separator material.
9. described in a claim 1, it is used for the using method of the separator material of casting residue slag pot grid, it is characterised in that: include
Following steps:
1) separator material using casting residue slag pot grid replaces conventional separator material, carries out according to conventional vibrating casting technique
The preparation of lattice partition, obtains dividing plate moulding by casting body after the outer natural curing of maintenance in mould and film；
2) dip-coating or external coating or the method for surface spraying coating against binding slags are taked, in the preparation of dividing plate moulding by casting surface all
The slag adhesion coating of even continuous densification, wherein, the raw material weight percentage ratio of coating against binding slags consists of the quick lime of 80～90%
With 10～the calcium-base bentonite of 20%, external adding water regulation stirs and prepares coating；
3), after the dip-coating of dividing plate moulding by casting surface or brushing or spraying coating against binding slags, naturally dry in the shade 24 hours, then 105～
120 DEG C are toasted 24 hours, it is thus achieved that required partition component；
4) carry out assembling and the arrangement of slag pot grid according to common process, and come into operation.
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| CN112521064A (en) * | 2020-12-17 | 2021-03-19 | 上海二十冶建设有限公司 | Fiber-reinforced steel slag grating plate and preparation method thereof |
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