CN108129154A - A kind of steelmaking aluminum magnesium gunning material - Google Patents
A kind of steelmaking aluminum magnesium gunning material Download PDFInfo
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- CN108129154A CN108129154A CN201711316489.3A CN201711316489A CN108129154A CN 108129154 A CN108129154 A CN 108129154A CN 201711316489 A CN201711316489 A CN 201711316489A CN 108129154 A CN108129154 A CN 108129154A
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9676—Resistance against chemicals, e.g. against molten glass or molten salts against molten metals such as steel or aluminium
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- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
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- Materials Engineering (AREA)
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of steelmaking aluminum magnesium gunning materials, belong to steel-making auxiliary agent technical field.The steelmaking aluminum magnesium gunning material that the present invention develops includes aggregate, binding agent, auxiliary agent, dispersant and water, wherein, aggregate is by aluminum clinker, magnesia, charring rice husk fiber, vermiculite, slag and nanometer iron powder, and binding agent is made of compounding resin, inorganic binder, coal tar and silane coupling agent, it compounds containing phenolic resin, Petropols and terpene resin in resin, inorganic binder is mixed by magnesia, calcium oxide, magnesium hydroxide and calcium hydroxide.Gained steelmaking aluminum magnesium gunning material of the invention has good resistance to slag, adhesive force and mechanical property.
Description
Technical field
The invention discloses a kind of steelmaking aluminum magnesium gunning materials, belong to steel-making auxiliary agent technical field.
Background technology
Gunning refractory（gunning mix；refractory gunning mix）By the fire proofed wood with certain granules grading
What material, chemical bond and additive formed, what is used when being repaired with sprayed construction method to Thermal Equipment liner is indefinite
Shape refractory material.It is a kind of main Types in jetting material.
In recent years, the demand of clean steel smelting is answered, various steel-making new technologies obtain rapid promotion and application, make ladle liner
Operating condition it is further harsh, the service life of ladle liner reduces, ladle circulation difficulty, compared to repairing of directly unpacking, spray repair
Repairing reduces labor intensity, and substantially reduce the maintenance time of ladle liner, stablizes and improves ladle turnaround speed.
And wet shotcrete technology construction eliminates dust because having in dry method, semidry method and wet method this 3 kinds of spray repair construction methods, improves construction and imitates
Rebound loss in rate and reduction construction, has many advantages, such as convenient, fast, laborsaving and efficient and is used widely.And it is spraying
Add in work the gunning refractory that more crucially there is good mobility to have certain stickiness simultaneously, at present ladle gunning refractory
Predominantly magnalium matter introduces SiO in aluminium magnesian gunning refractory2Superfine powder improves its pumpability, but SiO2Micro mist is in work progress
In gunning refractory is easily made the problem of serious excreting water phenomenon, crack phenomenon, also resistance to slag is bad occur.It is used to optimize ladle
The workability and durability of aluminium magnesian gunning refractory, it is also necessary to study the performance of aluminium magnesian gunning refractory.
Invention content
The present invention solves the technical problem of：For traditional magnalium gunning refractory resistance to slag it is bad the problem of, provide
A kind of steelmaking aluminum magnesium gunning material.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of steelmaking aluminum magnesium gunning material, is made of the raw material of following parts by weight：
60~80 parts of aggregate
30~40 parts of binding agent
8~10 parts of auxiliary agent
60~80 parts of dispersant
80~100 parts of water
The aggregate is made of the raw material of following parts by weight：60~80 parts of aluminum clinkers, 30~40 parts of magnesia, 8~10 parts
Charring rice husk fiber, 4~6 parts of vermiculites, 8~10 parts of slags, 3~5 parts of nanometer iron powders；
The binding agent is made of the raw material of following parts by weight：60~80 parts of compounding resins, 30~40 parts of inorganic binders,
10~15 parts of benzyl silicones, 10~15 parts of coal tar, 4~6 parts of silane coupling agents；
The auxiliary agent is made of the raw material of following parts by weight：1~3 part of ice crystal, 4~6 parts of boraxs, 8~10 parts of ammonium nitrate,
10~20 parts of nano-graphenes, 8~10 parts of microwaxes, 3~5 parts of oxide nano rare earths.
The dispersant is polyethylene glycol 400, any one in polyethylene glycol 500 or Macrogol 600.
The aluminum clinker is compounded by the different-grain diameter bauxite powder of following parts by weight：10~20 parts of grain sizes
For the bauxite powder of 3.2~5.0mm, bauxite powder that 20~30 parts of grain sizes are 1.2~3.0mm, 20~30 parts of grain sizes for 0.4~
The bauxite powder of 0.9mm, the bauxite powder that 10~15 parts of grain sizes are 0.1~0.3mm.
The magnesia is compounded by the different-grain diameter caustic-calcined magnesite of following parts by weight：10~20 parts of grain sizes are 4.2
The caustic-calcined magnesite of~6.0mm, the caustic-calcined magnesite that 20~30 parts of grain sizes are 2.2~4.0mm, 20~30 parts of grain sizes are 0.8~1.8mm
Caustic-calcined magnesite, 10~15 parts of grain sizes are the caustic-calcined magnesite of 0.3~0.5mm.
The specific preparation process of charring rice husk fiber is：After rice husk is soaked in water, Freezing smashing, then after drying,
Under nitrogen guard mode, 400~450 DEG C, after heat preservation carbonizes 2~4h are warming up to 0.3~0.5 DEG C/min rate programs, after
It is continuous to be warming up to 680~700 DEG C with 0.8~1.2 DEG C/min rate programs, after heat preservation carbonizes 3~5h, cool to room temperature with the furnace, go out
Material, obtains charring rice husk fiber.
The slag is any one in blast furnace slag, converter slag or open hearth slag.
The compounding resin is made of the raw material of following parts by weight：60~80 parts of phenolic resin, 10~15 parts of oil
Resin, 3~5 parts of terpene resins.
The inorganic binder is made of the raw material of following parts by weight：10~15 parts of magnesia, 10~20 parts of oxidations
Calcium, 15~20 parts of magnesium hydroxides and 15~20 parts of calcium hydroxides.
The silane coupling agent is silane resin acceptor kh-550, in silane coupling agent KH-560 or Silane coupling reagent KH-570
Any one.
The oxide nano rare earth is any one in nano-cerium oxide or nano lanthanum oxide.
The beneficial effects of the invention are as follows：
（1）Technical solution of the present invention specifically limits charring rice husk fiber in carbonization process by adding charring rice husk fiber
Heating rate, rice hull cellulose surface naturally covering one layer of keratinization silicon dioxide layer, slowly heating carbonization process in, it is interior
Portion's organic matter and moisture are gradually decomposed and are volatilized, and the silicon dioxide layer of external keratinization can be used as support construction, slowly heat up
Hollow structure, the addition of hollow charing rice hull cellulose, on the one hand, the organic matter of charing can improve material are formed in carbonization process
Inoxidizability and slag corrosion resistance, on the other hand, hollow structure can be used as gas passage, be conducive to the gas such as moisture under hot conditions
Body is discharged, and prevents from bursting, furthermore, the presence of hollow structure is conducive to the stress release generated inside system, further improves spray
Mend the mechanical property after materials'use；
（2）For technical solution of the present invention by adding ammonium nitrate, on the one hand which can play the effect of promotion system gel hardening
Fruit, another aspect ammonium nitrate can decompose in high-temperature heating, and the decomposition reaction is reacted for very exothermic, can be cooperateed with
The nanometer iron powder oxidation heat liberation added in system provides heat for system jointly, improves flame temperature during spray repair, improves spray
The adhesive force of layer and furnace lining is mended, the iron oxide that in addition nanometer iron powder is formed after being aoxidized can be used as sintering aid, the ice with addition
Spar and borax play the role of reduction system fusing point jointly, so as to improve system consistency, promote the resistance to slag of product；
（3）Technical solution of the present invention is by adding nano-graphene, oxide nano rare earth and microwax, during spray repair,
Higher melting-point microwax can floating upward quickly to system surface layer, in floating-upward process, nano-graphene and can receive in carrying system
Rice rare earth oxide floating upward quickly forms dense protective layer on surface, improves the inoxidizability and anti-slag of system to system surface
Performance.
Specific embodiment
It counts in parts by weight, takes the bauxite powder that 10~20 parts of grain sizes are 3.2~5.0mm successively, 20~30 parts of grain sizes are
The bauxite powder of 1.2~3.0mm, 20~30 parts of grain sizes are the bauxite powder of 0.4~0.9mm, 10~15 parts of grain sizes for 0.1~
The bauxite powder of 0.3mm is stirred 2~4h with blender with 300~500r/min rotating speeds, and discharging obtains aluminum clinker；By weight
Number meter is measured, takes the caustic-calcined magnesite that 10~20 parts of grain sizes are 4.2~6.0mm successively, 20~30 parts of grain sizes are 2.2~4.0mm's
Caustic-calcined magnesite, the caustic-calcined magnesite that 20~30 parts of grain sizes are 0.8~1.8mm, the magnesia unslacked that 10~15 parts of grain sizes are 0.3~0.5mm
Sand is stirred 45~60min with blender with 300~500r/min rotating speeds, and discharging obtains magnesia；Rice husk and water are pressed into quality
Than being 1：10~1：After 12 mixing, 3~5h is standing and soak for, then the rice husk after immersion is transferred to freezing crusher, using liquid nitrogen to grind
Grinding media crosses 120~180 mesh sieve after Freezing smashing, rice husk particle is obtained, and gained rice husk particle is transferred in baking oven, in temperature
It is dried under the conditions of being 105~110 DEG C to constant weight, obtains drying of rice putamen crushed aggregates, then gained drying of rice putamen crushed aggregates are moved into retort, with
60~80mL/min rates are passed through nitrogen protection into stove, under nitrogen guard mode, with 0.3~0.5 DEG C/min rate programs
400~450 DEG C are warming up to, after heat preservation carbonizes 2~4h, continues to be warming up to 680~700 with 0.8~1.2 DEG C/min rate programs
DEG C, after 3~5h of heat preservation charing, cool to room temperature with the furnace, discharge, obtain charring rice husk fiber；It counts in parts by weight, take 60 successively~
80 parts of aluminum clinkers, 30~40 parts of magnesia, 8~10 parts of charring rice husk fibers, 4~6 parts of vermiculites, 8~10 parts of slags, 3~5 parts are received
Rice iron powder, adds in ball grinder, 45~60min of ball milling mixing obtains aggregate；It counts in parts by weight, takes 60~80 parts of aggregates successively,
30~40 parts of adhesives, 8~10 parts of auxiliary agents, 60~80 parts of dispersants, 80~100 parts of water first add aggregate, adhesive and auxiliary agent
Enter in batch mixer, with 1500~1800r/min rotating speed 45~60min of high-speed stirred, add dispersant and water, continue with 1600
~2000r/min rotating speeds high-speed stirred mixes 3~5h, discharges to get steelmaking aluminum magnesium gunning material.The binding agent be by with
The raw material composition of lower parts by weight：60~80 parts of compounding resins, 30~40 parts of inorganic binders, 10~15 parts of benzyl silicon trees
Fat, 10~15 parts of coal tar, 4~6 parts of silane coupling agents.The auxiliary agent is made of the raw material of following parts by weight：1~3 part
Ice crystal, 4~6 parts of boraxs, 8~10 parts of ammonium nitrate, 10~20 parts of nano-graphenes, 8~10 parts of microwaxes, 3~5 parts of Nano Rares
Native oxide.The dispersant is polyethylene glycol 400, any one in polyethylene glycol 500 or Macrogol 600.The steel
Slag is any one in blast furnace slag, converter slag or open hearth slag.The compounding resin is by the original of following parts by weight
Material composition：60~80 parts of phenolic resin, 10~15 parts of Petropols, 3~5 parts of terpene resins.The inorganic binder be by with
The raw material composition of lower parts by weight：10~15 parts of magnesia, 10~20 parts of calcium oxide, 15~20 parts of magnesium hydroxides and 15~20 parts
Calcium hydroxide.The silane coupling agent is silane resin acceptor kh-550, silane coupling agent KH-560 or Silane coupling reagent KH-570
In any one.The oxide nano rare earth is any one in nano-cerium oxide or nano lanthanum oxide.
Example 1
It counts in parts by weight, takes the bauxite powder that 20 parts of grain sizes are 5.0mm successively, 30 parts of grain sizes are the bauxite powder of 3.0mm, 30
The bauxite powder that part grain size is 0.9mm, the bauxite powder that 15 parts of grain sizes are 0.3mm are stirred with blender with 500r/min rotating speeds
4h is mixed, discharging obtains aluminum clinker；It counts in parts by weight, takes the caustic-calcined magnesite that 20 parts of grain sizes are 6.0mm, 30 parts of grain sizes successively
For the caustic-calcined magnesite of 4.0mm, the caustic-calcined magnesite that 30 parts of grain sizes are 1.8mm, the caustic-calcined magnesite that 15 parts of grain sizes are 0.5mm, with stirring
Device is stirred 60min with 500r/min rotating speeds, and discharging obtains magnesia；It is 1 in mass ratio by rice husk and water：After 12 mixing, stand
5h is impregnated, then the rice husk after immersion is transferred to freezing crusher, 180 mesh sieve is crossed using liquid nitrogen as abrasive media, after Freezing smashing, is obtained
Rice husk particle, and gained rice husk particle is transferred in baking oven, it is dried under the conditions of being 110 DEG C in temperature to constant weight, obtains dry rice husk
Particle, then gained drying of rice putamen crushed aggregates are moved into retort, nitrogen protection is passed through into stove with 80mL/min rates, is protected in nitrogen
Under shield state, 450 DEG C are warming up to 0.5 DEG C/min rate programs, after heat preservation carbonizes 4h, is continued with 1.2 DEG C/min rate programs
700 DEG C are warming up to, after heat preservation carbonizes 5h, cools to room temperature with the furnace, discharges, obtains charring rice husk fiber；It counts in parts by weight, successively
Take 80 parts of aluminum clinkers, 40 parts of magnesia, 10 parts of charring rice husk fibers, 6 parts of vermiculites, 10 parts of slags, 5 parts of nanometer iron powders, addition ball
In grinding jar, ball milling mixing 60min obtains aggregate；It counts in parts by weight, takes 80 parts of aggregates successively, 40 parts of adhesives, 10 parts of auxiliary agents,
80 parts of dispersants, 100 parts of water first add in aggregate, adhesive and auxiliary agent in batch mixer, with 1800r/min rotating speed high-speed stirreds
60min adds dispersant and water, continues to mix 5h with 2000r/min rotating speeds high-speed stirred, discharge to get steelmaking aluminum magnesium
Gunning material.The binding agent is made of the raw material of following parts by weight：80 parts of compounding resins, 40 parts of inorganic binders, 15
Part benzyl silicones, 15 parts of coal tar, 6 parts of silane coupling agents.The auxiliary agent is made of the raw material of following parts by weight：3
Part ice crystal, 6 parts of boraxs, 10 parts of ammonium nitrate, 20 parts of nano-graphenes, 10 parts of microwaxes, 5 parts of oxide nano rare earths.It is described
Dispersant is polyethylene glycol 400.The slag is blast furnace slag.The compounding resin is the raw material group by following parts by weight
Into：80 parts of phenolic resin, 15 parts of Petropols, 5 parts of terpene resins.The inorganic binder is by the raw material of following parts by weight
Composition：15 parts of magnesia, 20 parts of calcium oxide, 20 parts of magnesium hydroxides and 20 parts of calcium hydroxides.The silane coupling agent is even for silane
Join agent KH-550.The oxide nano rare earth is nano-cerium oxide.
Example 2
It counts in parts by weight, takes the bauxite powder that 20 parts of grain sizes are 5.0mm successively, 30 parts of grain sizes are the bauxite powder of 3.0mm, 30
The bauxite powder that part grain size is 0.9mm, the bauxite powder that 15 parts of grain sizes are 0.3mm are stirred with blender with 500r/min rotating speeds
4h is mixed, discharging obtains aluminum clinker；It counts in parts by weight, takes the caustic-calcined magnesite that 20 parts of grain sizes are 6.0mm, 30 parts of grain sizes successively
For the caustic-calcined magnesite of 4.0mm, the caustic-calcined magnesite that 30 parts of grain sizes are 1.8mm, the caustic-calcined magnesite that 15 parts of grain sizes are 0.5mm, with stirring
Device is stirred 60min with 500r/min rotating speeds, and discharging obtains magnesia；It counts in parts by weight, takes 80 parts of aluminum clinkers successively, 40
Part magnesia, 6 parts of vermiculites, 10 parts of slags, 5 parts of nanometer iron powders are added in ball grinder, and ball milling mixing 60min obtains aggregate；By weight
Number meter takes 80 parts of aggregates, 40 parts of adhesives, 10 parts of auxiliary agents, 80 parts of dispersants, 100 parts of water, first by aggregate, adhesive successively
It is added in batch mixer with auxiliary agent, with 1800r/min rotating speed high-speed stirred 60min, adds dispersant and water, continue with 2000r/
Min rotating speeds high-speed stirred mixes 5h, discharges to get steelmaking aluminum magnesium gunning material.The binding agent is by following parts by weight
Raw material composition：80 parts of compounding resins, 40 parts of inorganic binders, 15 parts of benzyl silicones, 15 parts of coal tar, 6 parts of silane idols
Join agent.The auxiliary agent is made of the raw material of following parts by weight：3 parts of ice crystals, 6 parts of boraxs, 10 parts of ammonium nitrate, 20 parts of nanometers
Graphene, 10 parts of microwaxes, 5 parts of oxide nano rare earths.The dispersant is polyethylene glycol 400.The slag is blast furnace steel
Slag.The compounding resin is made of the raw material of following parts by weight：80 parts of phenolic resin, 15 parts of Petropols, 5 parts of terpenes trees
Fat.The inorganic binder is made of the raw material of following parts by weight：15 parts of magnesia, 20 parts of calcium oxide, 20 parts of hydroxides
Magnesium and 20 parts of calcium hydroxides.The silane coupling agent is silane resin acceptor kh-550.The oxide nano rare earth is nano oxygen
Change cerium.
Example 3
It counts in parts by weight, takes the bauxite powder that 20 parts of grain sizes are 5.0mm successively, 30 parts of grain sizes are the bauxite powder of 3.0mm, 30
The bauxite powder that part grain size is 0.9mm, the bauxite powder that 15 parts of grain sizes are 0.3mm are stirred with blender with 500r/min rotating speeds
4h is mixed, discharging obtains aluminum clinker；It counts in parts by weight, takes the caustic-calcined magnesite that 20 parts of grain sizes are 6.0mm, 30 parts of grain sizes successively
For the caustic-calcined magnesite of 4.0mm, the caustic-calcined magnesite that 30 parts of grain sizes are 1.8mm, the caustic-calcined magnesite that 15 parts of grain sizes are 0.5mm, with stirring
Device is stirred 60min with 500r/min rotating speeds, and discharging obtains magnesia；It is 1 in mass ratio by rice husk and water：After 12 mixing, stand
5h is impregnated, then the rice husk after immersion is transferred to freezing crusher, 180 mesh sieve is crossed using liquid nitrogen as abrasive media, after Freezing smashing, is obtained
Rice husk particle, and gained rice husk particle is transferred in baking oven, it is dried under the conditions of being 110 DEG C in temperature to constant weight, obtains dry rice husk
Particle, then gained drying of rice putamen crushed aggregates are moved into retort, nitrogen protection is passed through into stove with 80mL/min rates, is protected in nitrogen
Under shield state, 450 DEG C are warming up to 0.5 DEG C/min rate programs, after heat preservation carbonizes 4h, is continued with 1.2 DEG C/min rate programs
700 DEG C are warming up to, after heat preservation carbonizes 5h, cools to room temperature with the furnace, discharges, obtains charring rice husk fiber；It counts in parts by weight, successively
Take 80 parts of aluminum clinkers, 40 parts of magnesia, 10 parts of charring rice husk fibers, 6 parts of vermiculites, 10 parts of slags, 5 parts of nanometer iron powders, addition ball
In grinding jar, ball milling mixing 60min obtains aggregate；It counts in parts by weight, takes 80 parts of aggregates successively, 40 parts of adhesives, 10 parts of auxiliary agents,
80 parts of dispersants, 100 parts of water first add in aggregate, adhesive and auxiliary agent in batch mixer, with 1800r/min rotating speed high-speed stirreds
60min adds dispersant and water, continues to mix 5h with 2000r/min rotating speeds high-speed stirred, discharge to get steelmaking aluminum magnesium
Gunning material.The binding agent is made of the raw material of following parts by weight：80 parts of compounding resins, 40 parts of inorganic binders, 15
Part benzyl silicones, 15 parts of coal tar, 6 parts of silane coupling agents.The auxiliary agent is made of the raw material of following parts by weight：3
Part ice crystal, 6 parts of boraxs, 20 parts of nano-graphenes, 10 parts of microwaxes, 5 parts of oxide nano rare earths.The dispersant is poly- second
Glycol 400.The slag is blast furnace slag.The compounding resin is made of the raw material of following parts by weight：80 parts of phenolic aldehyde trees
Fat, 15 parts of Petropols, 5 parts of terpene resins.The inorganic binder is made of the raw material of following parts by weight：15 parts of oxidations
Magnesium, 20 parts of calcium oxide, 20 parts of magnesium hydroxides and 20 parts of calcium hydroxides.The silane coupling agent is silane resin acceptor kh-550.Institute
Oxide nano rare earth is stated as nano-cerium oxide.
Example 4
It counts in parts by weight, takes the bauxite powder that 20 parts of grain sizes are 5.0mm successively, 30 parts of grain sizes are the bauxite powder of 3.0mm, 30
The bauxite powder that part grain size is 0.9mm, the bauxite powder that 15 parts of grain sizes are 0.3mm are stirred with blender with 500r/min rotating speeds
4h is mixed, discharging obtains aluminum clinker；It counts in parts by weight, takes the caustic-calcined magnesite that 20 parts of grain sizes are 6.0mm, 30 parts of grain sizes successively
For the caustic-calcined magnesite of 4.0mm, the caustic-calcined magnesite that 30 parts of grain sizes are 1.8mm, the caustic-calcined magnesite that 15 parts of grain sizes are 0.5mm, with stirring
Device is stirred 60min with 500r/min rotating speeds, and discharging obtains magnesia；It is 1 in mass ratio by rice husk and water：After 12 mixing, stand
5h is impregnated, then the rice husk after immersion is transferred to freezing crusher, 180 mesh sieve is crossed using liquid nitrogen as abrasive media, after Freezing smashing, is obtained
Rice husk particle, and gained rice husk particle is transferred in baking oven, it is dried under the conditions of being 110 DEG C in temperature to constant weight, obtains dry rice husk
Particle, then gained drying of rice putamen crushed aggregates are moved into retort, nitrogen protection is passed through into stove with 80mL/min rates, is protected in nitrogen
Under shield state, 450 DEG C are warming up to 0.5 DEG C/min rate programs, after heat preservation carbonizes 4h, is continued with 1.2 DEG C/min rate programs
700 DEG C are warming up to, after heat preservation carbonizes 5h, cools to room temperature with the furnace, discharges, obtains charring rice husk fiber；It counts in parts by weight, successively
Take 80 parts of aluminum clinkers, 40 parts of magnesia, 10 parts of charring rice husk fibers, 6 parts of vermiculites, 10 parts of slags, 5 parts of nanometer iron powders, addition ball
In grinding jar, ball milling mixing 60min obtains aggregate；It counts in parts by weight, takes 80 parts of aggregates successively, 40 parts of adhesives, 10 parts of auxiliary agents,
80 parts of dispersants, 100 parts of water first add in aggregate, adhesive and auxiliary agent in batch mixer, with 1800r/min rotating speed high-speed stirreds
60min adds dispersant and water, continues to mix 5h with 2000r/min rotating speeds high-speed stirred, discharge to get steelmaking aluminum magnesium
Gunning material.The binding agent is made of the raw material of following parts by weight：80 parts of compounding resins, 40 parts of inorganic binders, 15
Part benzyl silicones, 15 parts of coal tar, 6 parts of silane coupling agents.The auxiliary agent is made of the raw material of following parts by weight：3
Part ice crystal, 6 parts of boraxs, 10 parts of ammonium nitrate, 10 parts of microwaxes, 5 parts of oxide nano rare earths.The dispersant is polyethylene glycol
400.The slag is blast furnace slag.The compounding resin is made of the raw material of following parts by weight：80 parts of phenolic resin, 15
Part Petropols, 5 parts of terpene resins.The inorganic binder is made of the raw material of following parts by weight：15 parts of magnesia, 20
Part calcium oxide, 20 parts of magnesium hydroxides and 20 parts of calcium hydroxides.The silane coupling agent is silane resin acceptor kh-550.The nanometer
Rare earth oxide is nano-cerium oxide.
Example 5
It counts in parts by weight, takes the bauxite powder that 20 parts of grain sizes are 5.0mm successively, 30 parts of grain sizes are the bauxite powder of 3.0mm, 30
The bauxite powder that part grain size is 0.9mm, the bauxite powder that 15 parts of grain sizes are 0.3mm are stirred with blender with 500r/min rotating speeds
4h is mixed, discharging obtains aluminum clinker；It counts in parts by weight, takes the caustic-calcined magnesite that 20 parts of grain sizes are 6.0mm, 30 parts of grain sizes successively
For the caustic-calcined magnesite of 4.0mm, the caustic-calcined magnesite that 30 parts of grain sizes are 1.8mm, the caustic-calcined magnesite that 15 parts of grain sizes are 0.5mm, with stirring
Device is stirred 60min with 500r/min rotating speeds, and discharging obtains magnesia；It is 1 in mass ratio by rice husk and water：After 12 mixing, stand
5h is impregnated, then the rice husk after immersion is transferred to freezing crusher, 180 mesh sieve is crossed using liquid nitrogen as abrasive media, after Freezing smashing, is obtained
Rice husk particle, and gained rice husk particle is transferred in baking oven, it is dried under the conditions of being 110 DEG C in temperature to constant weight, obtains dry rice husk
Particle, then gained drying of rice putamen crushed aggregates are moved into retort, nitrogen protection is passed through into stove with 80mL/min rates, is protected in nitrogen
Under shield state, 450 DEG C are warming up to 0.5 DEG C/min rate programs, after heat preservation carbonizes 4h, is continued with 1.2 DEG C/min rate programs
700 DEG C are warming up to, after heat preservation carbonizes 5h, cools to room temperature with the furnace, discharges, obtains charring rice husk fiber；It counts in parts by weight, successively
Take 80 parts of aluminum clinkers, 40 parts of magnesia, 10 parts of charring rice husk fibers, 6 parts of vermiculites, 10 parts of slags, 5 parts of nanometer iron powders, addition ball
In grinding jar, ball milling mixing 60min obtains aggregate；It counts in parts by weight, takes 80 parts of aggregates successively, 40 parts of adhesives, 10 parts of auxiliary agents,
80 parts of dispersants, 100 parts of water first add in aggregate, adhesive and auxiliary agent in batch mixer, with 1800r/min rotating speed high-speed stirreds
60min adds dispersant and water, continues to mix 5h with 2000r/min rotating speeds high-speed stirred, discharge to get steelmaking aluminum magnesium
Gunning material.The binding agent is made of the raw material of following parts by weight：80 parts of compounding resins, 40 parts of inorganic binders, 15
Part benzyl silicones, 15 parts of coal tar, 6 parts of silane coupling agents.The auxiliary agent is made of the raw material of following parts by weight：3
Part ice crystal, 6 parts of boraxs, 10 parts of ammonium nitrate, 20 parts of nano-graphenes, 10 parts of microwaxes.The dispersant is polyethylene glycol
400.The slag is blast furnace slag.The compounding resin is made of the raw material of following parts by weight：80 parts of phenolic resin, 15
Part Petropols, 5 parts of terpene resins.The inorganic binder is made of the raw material of following parts by weight：15 parts of magnesia, 20
Part calcium oxide, 20 parts of magnesium hydroxides and 20 parts of calcium hydroxides.The silane coupling agent is silane resin acceptor kh-550.
Example 6
It counts in parts by weight, takes the bauxite powder that 20 parts of grain sizes are 5.0mm successively, 30 parts of grain sizes are the bauxite powder of 3.0mm, 30
The bauxite powder that part grain size is 0.9mm, the bauxite powder that 15 parts of grain sizes are 0.3mm are stirred with blender with 500r/min rotating speeds
4h is mixed, discharging obtains aluminum clinker；It counts in parts by weight, takes the caustic-calcined magnesite that 20 parts of grain sizes are 6.0mm, 30 parts of grain sizes successively
For the caustic-calcined magnesite of 4.0mm, the caustic-calcined magnesite that 30 parts of grain sizes are 1.8mm, the caustic-calcined magnesite that 15 parts of grain sizes are 0.5mm, with stirring
Device is stirred 60min with 500r/min rotating speeds, and discharging obtains magnesia；It is 1 in mass ratio by rice husk and water：After 12 mixing, stand
5h is impregnated, then the rice husk after immersion is transferred to freezing crusher, 180 mesh sieve is crossed using liquid nitrogen as abrasive media, after Freezing smashing, is obtained
Rice husk particle, and gained rice husk particle is transferred in baking oven, it is dried under the conditions of being 110 DEG C in temperature to constant weight, obtains dry rice husk
Particle, then gained drying of rice putamen crushed aggregates are moved into retort, nitrogen protection is passed through into stove with 80mL/min rates, is protected in nitrogen
Under shield state, 450 DEG C are warming up to 0.5 DEG C/min rate programs, after heat preservation carbonizes 4h, is continued with 1.2 DEG C/min rate programs
700 DEG C are warming up to, after heat preservation carbonizes 5h, cools to room temperature with the furnace, discharges, obtains charring rice husk fiber；It counts in parts by weight, successively
Take 80 parts of aluminum clinkers, 40 parts of magnesia, 10 parts of charring rice husk fibers, 6 parts of vermiculites, 10 parts of slags, 5 parts of nanometer iron powders, addition ball
In grinding jar, ball milling mixing 60min obtains aggregate；It counts in parts by weight, takes 80 parts of aggregates successively, 40 parts of adhesives, 10 parts of auxiliary agents,
80 parts of dispersants, 100 parts of water first add in aggregate, adhesive and auxiliary agent in batch mixer, with 1800r/min rotating speed high-speed stirreds
60min adds dispersant and water, continues to mix 5h with 2000r/min rotating speeds high-speed stirred, discharge to get steelmaking aluminum magnesium
Gunning material.The binding agent is made of the raw material of following parts by weight：80 parts of compounding resins, 40 parts of inorganic binders, 15
Part benzyl silicones, 15 parts of coal tar, 6 parts of silane coupling agents.The auxiliary agent is made of the raw material of following parts by weight：3
Part ice crystal, 6 parts of boraxs, 10 parts of ammonium nitrate, 20 parts of nano-graphenes, 5 parts of oxide nano rare earths.The dispersant is poly- second
Glycol 400.The slag is blast furnace slag.The compounding resin is made of the raw material of following parts by weight：80 parts of phenolic aldehyde trees
Fat, 15 parts of Petropols, 5 parts of terpene resins.The inorganic binder is made of the raw material of following parts by weight：15 parts of oxidations
Magnesium, 20 parts of calcium oxide, 20 parts of magnesium hydroxides and 20 parts of calcium hydroxides.The silane coupling agent is silane resin acceptor kh-550.Institute
Oxide nano rare earth is stated as nano-cerium oxide.
Example 7
It counts in parts by weight, takes the bauxite powder that 20 parts of grain sizes are 5.0mm successively, 30 parts of grain sizes are the bauxite powder of 3.0mm, 30
The bauxite powder that part grain size is 0.9mm, the bauxite powder that 15 parts of grain sizes are 0.3mm are stirred with blender with 500r/min rotating speeds
4h is mixed, discharging obtains aluminum clinker；It counts in parts by weight, takes the caustic-calcined magnesite that 20 parts of grain sizes are 6.0mm, 30 parts of grain sizes successively
For the caustic-calcined magnesite of 4.0mm, the caustic-calcined magnesite that 30 parts of grain sizes are 1.8mm, the caustic-calcined magnesite that 15 parts of grain sizes are 0.5mm, with stirring
Device is stirred 60min with 500r/min rotating speeds, and discharging obtains magnesia；It is 1 in mass ratio by rice husk and water：After 12 mixing, stand
5h is impregnated, then the rice husk after immersion is transferred to freezing crusher, 180 mesh sieve is crossed using liquid nitrogen as abrasive media, after Freezing smashing, is obtained
Rice husk particle, and gained rice husk particle is transferred in baking oven, it is dried under the conditions of being 110 DEG C in temperature to constant weight, obtains dry rice husk
Particle, then gained drying of rice putamen crushed aggregates are moved into retort, nitrogen protection is passed through into stove with 80mL/min rates, is protected in nitrogen
Under shield state, 450 DEG C are warming up to 0.5 DEG C/min rate programs, after heat preservation carbonizes 4h, is continued with 1.2 DEG C/min rate programs
700 DEG C are warming up to, after heat preservation carbonizes 5h, cools to room temperature with the furnace, discharges, obtains charring rice husk fiber；It counts in parts by weight, successively
Take 80 parts of aluminum clinkers, 40 parts of magnesia, 10 parts of charring rice husk fibers, 6 parts of vermiculites, 10 parts of slags, 5 parts of nanometer iron powders, addition ball
In grinding jar, ball milling mixing 60min obtains aggregate；It counts in parts by weight, takes 80 parts of aggregates successively, 40 parts of adhesives, 10 parts of auxiliary agents,
80 parts of dispersants, 100 parts of water first add in aggregate, adhesive and auxiliary agent in batch mixer, with 1800r/min rotating speed high-speed stirreds
60min adds dispersant and water, continues to mix 5h with 2000r/min rotating speeds high-speed stirred, discharge to get steelmaking aluminum magnesium
Gunning material.The binding agent is made of the raw material of following parts by weight：80 parts of compounding resins, 40 parts of inorganic binders, 15
Part benzyl silicones, 6 parts of silane coupling agents.The auxiliary agent is made of the raw material of following parts by weight：3 parts of ice crystals, 6 parts
Borax, 10 parts of ammonium nitrate, 20 parts of nano-graphenes, 10 parts of microwaxes, 5 parts of oxide nano rare earths.The dispersant is poly- second
Glycol 400.The slag is blast furnace slag.The compounding resin is made of the raw material of following parts by weight：80 parts of phenolic aldehyde trees
Fat, 15 parts of Petropols, 5 parts of terpene resins.The inorganic binder is made of the raw material of following parts by weight：15 parts of oxidations
Magnesium, 20 parts of calcium oxide, 20 parts of magnesium hydroxides and 20 parts of calcium hydroxides.The silane coupling agent is silane resin acceptor kh-550.Institute
Oxide nano rare earth is stated as nano-cerium oxide.
Example 8
It counts in parts by weight, takes the bauxite powder that 20 parts of grain sizes are 5.0mm successively, 30 parts of grain sizes are the bauxite powder of 3.0mm, 30
The bauxite powder that part grain size is 0.9mm, the bauxite powder that 15 parts of grain sizes are 0.3mm are stirred with blender with 500r/min rotating speeds
4h is mixed, discharging obtains aluminum clinker；It counts in parts by weight, takes the caustic-calcined magnesite that 20 parts of grain sizes are 6.0mm, 30 parts of grain sizes successively
For the caustic-calcined magnesite of 4.0mm, the caustic-calcined magnesite that 30 parts of grain sizes are 1.8mm, the caustic-calcined magnesite that 15 parts of grain sizes are 0.5mm, with stirring
Device is stirred 60min with 500r/min rotating speeds, and discharging obtains magnesia；It is 1 in mass ratio by rice husk and water：After 12 mixing, stand
5h is impregnated, then the rice husk after immersion is transferred to freezing crusher, 180 mesh sieve is crossed using liquid nitrogen as abrasive media, after Freezing smashing, is obtained
Rice husk particle, and gained rice husk particle is transferred in baking oven, it is dried under the conditions of being 110 DEG C in temperature to constant weight, obtains dry rice husk
Particle, then gained drying of rice putamen crushed aggregates are moved into retort, nitrogen protection is passed through into stove with 80mL/min rates, is protected in nitrogen
Under shield state, 450 DEG C are warming up to 0.5 DEG C/min rate programs, after heat preservation carbonizes 4h, is continued with 1.2 DEG C/min rate programs
700 DEG C are warming up to, after heat preservation carbonizes 5h, cools to room temperature with the furnace, discharges, obtains charring rice husk fiber；It counts in parts by weight, successively
Take 80 parts of aluminum clinkers, 40 parts of magnesia, 10 parts of charring rice husk fibers, 6 parts of vermiculites, 10 parts of slags, 5 parts of nanometer iron powders, addition ball
In grinding jar, ball milling mixing 60min obtains aggregate；It counts in parts by weight, takes 80 parts of aggregates successively, 40 parts of adhesives, 10 parts of auxiliary agents,
80 parts of dispersants, 100 parts of water first add in aggregate, adhesive and auxiliary agent in batch mixer, with 1800r/min rotating speed high-speed stirreds
60min adds dispersant and water, continues to mix 5h with 2000r/min rotating speeds high-speed stirred, discharge to get steelmaking aluminum magnesium
Gunning material.The binding agent is made of the raw material of following parts by weight：80 parts of compounding resins, 40 parts of inorganic binders, 15
Part coal tar, 6 parts of silane coupling agents.The auxiliary agent is made of the raw material of following parts by weight：3 parts of ice crystals, 6 parts of boraxs,
10 parts of ammonium nitrate, 20 parts of nano-graphenes, 10 parts of microwaxes, 5 parts of oxide nano rare earths.The dispersant is polyethylene glycol
400.The slag is blast furnace slag.The compounding resin is made of the raw material of following parts by weight：80 parts of phenolic resin, 15
Part Petropols, 5 parts of terpene resins.The inorganic binder is made of the raw material of following parts by weight：15 parts of magnesia, 20
Part calcium oxide, 20 parts of magnesium hydroxides and 20 parts of calcium hydroxides.The silane coupling agent is silane resin acceptor kh-550.The nanometer
Rare earth oxide is nano-cerium oxide.
Comparative example：The magnalium gunning refractory of Henan Refractory Co., ltd production.
1 to 8 gained gunning refractory of example and comparative example product are subjected to performance detection, specific detection method is as follows：
Resistance to slag is surveyed using Static crucible method：Cast endoporus is ф 30/20mm × 40mm, and shape is 70mm × 70mm × 70mm's
Crucible sample after room temperature maintenance demoulds for 24 hours, is dried for 24 hours through 110 DEG C, adds in 20g ladle slags, then be heat-treated through 1600 DEG C of 3h.Edge
Center line is cut, and calculates penetration index（Penetration index=infiltrating area ÷ crucible hole central cross-section area × 100%）.
Adhesive rate can be acquired with formula below：Adhesive rate（%）Weight/spray repair powder weight of=spray repair construction body ×
100%
Specific testing result is as shown in table 1：
Table 1
By 1 testing result of table it is found that present invention gained steelmaking aluminum magnesium gunning material have good resistance to slag, adhesive force and
Mechanical property.
Claims (10)
1. a kind of steelmaking aluminum magnesium gunning material, it is characterised in that：It is made of the raw material of following parts by weight：
60~80 parts of aggregate
30~40 parts of binding agent
8~10 parts of auxiliary agent
60~80 parts of dispersant
80~100 parts of water
The aggregate is made of the raw material of following parts by weight：60~80 parts of aluminum clinkers, 30~40 parts of magnesia, 8~10 parts
Charring rice husk fiber, 4~6 parts of vermiculites, 8~10 parts of slags, 3~5 parts of nanometer iron powders；
The binding agent is made of the raw material of following parts by weight：60~80 parts of compounding resins, 30~40 parts of inorganic binders,
10~15 parts of benzyl silicones, 10~15 parts of coal tar, 4~6 parts of silane coupling agents；
The auxiliary agent is made of the raw material of following parts by weight：1~3 part of ice crystal, 4~6 parts of boraxs, 8~10 parts of ammonium nitrate,
10~20 parts of nano-graphenes, 8~10 parts of microwaxes, 3~5 parts of oxide nano rare earths.
2. a kind of steelmaking aluminum magnesium gunning material according to claim 1, it is characterised in that：The dispersant is poly- second two
Alcohol 400, any one in polyethylene glycol 500 or Macrogol 600.
3. a kind of steelmaking aluminum magnesium gunning material according to claim 1, it is characterised in that：The aluminum clinker be by with
The different-grain diameter bauxite powder of lower parts by weight compounds：The bauxite powder that 10~20 parts of grain sizes are 3.2~5.0mm, 20
The bauxite powder that~30 parts of grain sizes are 1.2~3.0mm, the bauxite powder that 20~30 parts of grain sizes are 0.4~0.9mm, 10~15 parts
Grain size is the bauxite powder of 0.1~0.3mm.
4. a kind of steelmaking aluminum magnesium gunning material according to claim 1, it is characterised in that：The magnesia is by following heavy
The different-grain diameter caustic-calcined magnesite of amount number compounds：The caustic-calcined magnesite that 10~20 parts of grain sizes are 4.2~6.0mm, 20~30 parts
Caustic-calcined magnesite of the grain size for 2.2~4.0mm, the caustic-calcined magnesite that 20~30 parts of grain sizes are 0.8~1.8mm, 10~15 parts of grain sizes are
The caustic-calcined magnesite of 0.3~0.5mm.
5. a kind of steelmaking aluminum magnesium gunning material according to claim 1, it is characterised in that：The charring rice husk fiber tool
Preparation step is：After rice husk is soaked in water, Freezing smashing, then after drying, under nitrogen guard mode, with 0.3~0.5
DEG C/min rate programs are warming up to 400~450 DEG C, after 2~4h of heat preservation charing, continue with 0.8~1.2 DEG C/min rate program liters
Temperature after 3~5h of heat preservation charing, cools to room temperature with the furnace, discharges, obtain charring rice husk fiber to 680~700 DEG C.
6. a kind of steelmaking aluminum magnesium gunning material according to claim 1, it is characterised in that：The slag is blast furnace steel
Any one in slag, converter slag or open hearth slag.
7. a kind of steelmaking aluminum magnesium gunning material according to claim 1, it is characterised in that：It is described compounding resin be by with
The raw material composition of lower parts by weight：60~80 parts of phenolic resin, 10~15 parts of Petropols, 3~5 parts of terpene resins.
8. a kind of steelmaking aluminum magnesium gunning material according to claim 1, it is characterised in that：The inorganic binder be by
The raw material composition of following parts by weight：10~15 parts of magnesia, 10~20 parts of calcium oxide, 15~20 parts of magnesium hydroxides and 15~20
Part calcium hydroxide.
9. a kind of steelmaking aluminum magnesium gunning material according to claim 1, it is characterised in that：The silane coupling agent is silicon
Any one in alkane coupling agent KH-550, silane coupling agent KH-560 or Silane coupling reagent KH-570.
10. a kind of steelmaking aluminum magnesium gunning material according to claim 1, it is characterised in that：The nano rare earth oxidation
Object is any one in nano-cerium oxide or nano lanthanum oxide.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112321304A (en) * | 2020-11-03 | 2021-02-05 | 湖南湘钢瑞泰科技有限公司 | Aluminum carbon lower nozzle waste repairing mass |
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| JPH09132469A (en) * | 1995-11-10 | 1997-05-20 | Nippon Steel Corp | Flame thermal spray material |
| CN106116596A (en) * | 2016-06-23 | 2016-11-16 | 河南科技大学 | A kind of anti-thermal shock cordierite refractory kiln furnitures and preparation method thereof |
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