CN107130084B - It is a kind of to take off the agent for purifying molten steel being mingled with for molten steel - Google Patents
It is a kind of to take off the agent for purifying molten steel being mingled with for molten steel Download PDFInfo
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- CN107130084B CN107130084B CN201710389696.5A CN201710389696A CN107130084B CN 107130084 B CN107130084 B CN 107130084B CN 201710389696 A CN201710389696 A CN 201710389696A CN 107130084 B CN107130084 B CN 107130084B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
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- C21C7/06—Deoxidising, e.g. killing
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Abstract
The invention discloses a kind of for the de- agent for purifying molten steel being mingled with of molten steel, belongs to net steel smelting technical field.Cleanser of the invention is graininess, including active principle and bonding component, and active principle and the mass ratio for binding component are (5~10): 1；The active principle includes metallic aluminium, pulverized limestone, carborundum powder, titanium dioxide and biomass；The adhesive component includes kaolin and sulfonated phenol formaldehyde resin, and cleanser is form of spherical particles, and particle diameter is 5~10mm.Cleanser of the invention reduces oxygen content in molten steel, and the CO gas of reaction generation promotes the floating removal of field trash, promote steel inclusion removing, it is smaller by inclusion size remaining in this cleanser treated molten steel, be evenly distributed, it is significantly reduced using agent for purifying molten steel treated inclusion content of steel, steel inclusion is denaturalized, and the clean-up effect of molten steel is obvious.
Description
Technical field
The invention belongs to clean steel technical field of smelting, more specifically to a kind of for the de- molten steel being mingled with of molten steel
Cleanser.
Background technique
Steel becomes one of most commonly used material in the world with its cheap price, reliable performance, is construction industry, manufacture
Indispensable ingredient in industry and people's daily life.It may be said that steel is the material base of modern society.With the development of society,
The continuous improvement of human demand, more stringent requirements are proposed to steel material by people." Iron & Steel Material of New Generation " is characterized in surpassing
Uniformly (Gao Junzhi), R&D target is not increased substantially in manufacturing cost for fine grain, high-cleanness and height, uses alloy resource and energy less
Intensity is doubled under the conditions of source, plasticity and toughness do not reduce substantially is doubled with service life.The performance of steel depends primarily on the change of steel
It studies point and tissue.The presence of steel inclusion destroys the continuity of steel matrix, causes the inhomogeneities of the tissue of steel, right
Ductility, intensity, toughness, fatigue behaviour, finish, corrosion resistance, welding performance and the electromagnetic performance of steel can all generate
Very big influence.It also will cause nozzle clogging in continuous casting process, nozzle clogging has very the production of continuous casting process and slab quality
Big influence.Therefore various countries steel research person puts into the research that larger energy is dedicated to steel inclusion removal, is being mingled with object space
Face research aspect also achieves huge achievement.
To the removal of field trash, generally there are two aspects both at home and abroad: first is that Countermeasures, second is that being carried out to field trash
Modification.Technology controlling and process is the technique by optimization steel in process of production, to reduce the content of steel inclusion.Turning
The oxygen content of converter terminal is reduced in furnace smelting process, reduces the lower quantity of slag, ladle argon-blown is carried out in refining process, continuous casting process
The middle content that steel inclusion is reduced using molding casting.In addition, both at home and abroad steel mill continuously improving always to field trash into
Row modification, the cleanliness of Lai Tigao steel；But cleanser is limited to molten steel purifying effect, urgent need is developed a kind of completely new
Agent for purifying molten steel.
Through retrieving, the patent of invention of Publication No. CN103642989A proposes a kind of agent for purifying molten steel, the weight of each component
Amount number is respectively as follows: CaO:57~63 part, Al2O3: 31~36 parts, SiO2: 5~10 parts, CaF2: 6~8 parts, MAI:4~11 part,
3~40 parts of deoxidier.The invention improves the mobility of clinker, has purified molten steel to a certain extent, reduces in molten steel and is mingled with
Object content, but the invention scheme is not modified processing to field trash, does not reduce the fusing point of microinclusions in steel, it cannot be fine
Promotion field trash grow up, float, removing, be unfavorable for further increasing the quality of steel product.
In addition, the title of innovation and creation are as follows: the molten steel scavenger and production method of a kind of composite sphere form (application number:
The 201410715201.X applying date: 2014-11-28), molten steel scavenger takes the form of a kind of composite sphere, composite sphere by
Pelletizing core and shell are constituted, and pelletizing core is metal material, shell is carbonate, pelletizing core mainly by silicon, manganese, aluminium alloyed powder
Mixture is constituted, and shell is mainly by calcium carbonate, magnesium carbonate, sodium carbonate, calcium oxide, one kind of magnesia or mixing no more than three kinds
Object is closed to constitute.The present invention reduces entire oxygen content in the steel content, improves steel product quality, cannot promote well the growing up, float of field trash,
Removal, is unfavorable for further increasing the quality of steel product.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome in the prior art, existing cleanser is limited to the clean-up effect of molten steel not
Foot, provides a kind of for the de- agent for purifying molten steel being mingled with of molten steel, passes through the mating reaction of active principle and bonding component, Ke Yigai
The clean-up effect of kind molten steel further can promote growing up, float, removing for field trash, and then it is clean to improve molten steel
Degree.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
Of the invention is a kind of for the de- agent for purifying molten steel being mingled with of molten steel, and the cleanser is graininess, including effective
The mass ratio of component and bonding component, active principle and bonding component is (5~10): 1；The active principle includes metal
Aluminium, pulverized limestone, carborundum powder, titanium dioxide and biomass；The adhesive component includes kaolin and sulfonated phenol formaldehyde resin.
Preferably, active principle further includes graphite powder, red beautiful soil and magnesium-manganese alloy.
Preferably, the active principle is formed according to following mass parts:
Preferably, each component in the active principle is powdery, and granularity≤0.1mm.
Preferably, the bonding component further includes starch and oil-sand.
Preferably, the bonding component is formed according to following mass parts:
Preferably, the active principle and the mass ratio of bonding component are (5~8): 1.
Preferably, the active principle and bonding component binded by cuber or disc balling machine to be formed it is granular
Cleanser.
Preferably, the cleanser is form of spherical particles, and particle diameter is 5~10mm.
Preferably, the Al content stated in metallic aluminium is greater than 92%.
3. beneficial effect
Using technical solution provided by the invention, compared with existing well-known technique, there is following remarkable result:
(1) of the invention a kind of for the de- agent for purifying molten steel being mingled with of molten steel, cleanser can promote steel inclusion de-
It removes and secondary pollution will not be generated to molten steel, the smaller, distribution by inclusion size remaining in this cleanser treated molten steel
Uniformly, and the field trash of remaining passes through denaturation treatment substantially, passes through the mating reaction of active principle and bonding component, Ke Yigai
The clean-up effect of kind molten steel；
(2) of the invention a kind of for the de- agent for purifying molten steel being mingled with of molten steel, under cleanser each component collective effect, reduce
Oxidisability in molten steel, can effectively facilitate field trash removing and inclusion conditioning in molten steel, and high-melting-point field trash can be to
Lower melting point inclusion transformation, is conducive to the removal of field trash, remaining field trash passes through denaturation treatment, will not be to steel product
Performance has an impact, to improve the quality of molten steel；
(3) of the invention a kind of for the de- agent for purifying molten steel being mingled with of molten steel, (FeO+MnO) and cleanser in refining slag
It reacts the Fe generated and Mn and molten steel, Al is entered by slag interface2O3、SiO2It is refined slag absorption, to reduce refining slag to steel
The oxidation of liquid.In clean steel smelting process, silicon carbide can in molten steel dissolved oxygen and oxide react, reduce molten steel in
Oxygen content, and the CO gas for reacting generation reduces the generation of solid-oxide, the stirring of molten steel is made in the removal of CO gas floating
It is removed with the floating for further promoting field trash；
(4) of the invention a kind of for the de- agent for purifying molten steel being mingled with of molten steel, the addition of cleanser can make the overwhelming majority solid
The calcium aluminate that body tufted alumina inclusion becomes low melting point richness CaO low melting point is mingled with, and reduces dystectic tufted Al in steel2O3
The content being mingled with, and then by high-melting-point brittleness Al2O3It is mingled with through the modified field trash for generating low melting point, promotes inclusion floating,
And easy agglomeration MnS is mingled with and is partly or entirely modified to tiny CaS and is mingled with, thus cleaning molten steel.
Detailed description of the invention
Fig. 1 is embodiment 1-5 total oxygen content variation diagram.
Specific embodiment
Hereafter to the detailed description of exemplary embodiment of the present invention, although these exemplary embodiments are by sufficiently in detail
Description is so that those skilled in the art can implement the present invention, it is to be understood that can realize other embodiments and can not depart from
To the present invention, various changes can be made in the case where the spirit and scope of the present invention.Hereafter retouching in more detail to the embodiment of the present invention
It states and is not limited to required the scope of the present invention, and just to be illustrated and do not limit to spy of the invention
The description of point and feature to propose to execute best mode of the invention, and is sufficient to make those skilled in the art that can implement this
Invention.Therefore, the scope of the invention is only defined by the appended claims.
Hereafter detailed description of the present invention and example embodiment are more fully understood in combination with attached drawing, wherein of the invention
Element and feature are identified by appended drawing reference.
Embodiment 1
The a kind of of the present embodiment takes off the agent for purifying molten steel being mingled with for molten steel, and the cleanser is graininess, cleanser
For form of spherical particles, particle diameter is 5~10mm；Cleanser includes active principle and bonding component, active principle and bonding group
The mass ratio divided is (5~10): 1, the preferred 8:1 of the present embodiment, active principle includes metallic aluminium, pulverized limestone, carborundum powder, dioxy
Change titanium and biomass, active principle presses 50~70 parts of following mass parts metallic aluminium, and 20~40 parts of pulverized limestone, titanium dioxide 5~
20 parts, 5~15 parts of carborundum powder, 2~4 parts of biomass, the present embodiment choosing: metallic aluminium 60kg, pulverized limestone 30kg, titanium dioxide
18kg, carborundum powder 15kg, biomass 3kg.
It is worth noting that: each component in active principle is powdery, and granularity≤0.1mm, i.e. metallic aluminium, lime
Powder, titanium dioxide, carborundum powder are powdery, and granularity≤0.1mm of metallic aluminium, pulverized limestone, titanium dioxide, biomass, carbonization
Granularity≤0.05mm of silicon powder.It is worth noting that: the biomass of the present embodiment is that grain, fruit are removed in agriculture and forestry production process
During the lignocellulosics such as stalk, trees in addition, farming industry leftover bits and pieces, agriculture and forestry organic waste material and Animal husbandry production
Fowl and animal excrement and waste.
Al content in the metallic aluminium of the present embodiment is greater than 92%, the present embodiment 93%；The lime of the present embodiment is to live
Property lime, be that the crystal grain that obtains in 1100 DEG C of calcination temperature is small, porosity is high, bulk density is small lime, and this implementation
The activity degree of lime used by example is in 330ml/4N-HCl.Carborundum powder is by silicon and carbon with the nonmetallic of Covalent bonding together
Carbide.
The adhesive component of the present embodiment includes kaolin and sulfonated phenol formaldehyde resin, and adhesive component is formed by following mass parts:
60~80 parts of kaolin, 20~40 parts of sulfonated phenol formaldehyde resin；The present embodiment choosing: kaolin 70kg, sulfonated phenol formaldehyde resin 30kg.
Cleanser is added in molten steel (cleanser is added in RH refining furnace in the present embodiment), cleanser is to molten steel purifying
Reaction mechanism may be as follows: refine in latter stage refining slag that (FeO+MnO) content is probably 1~3%, as FeO, MnO in slag
When content is higher, non-metallic inclusion will be generated, is unfavorable for improving the cleanliness of molten steel.In clean steel smelting process, to subtract
The generation of (FeO+MnO) and alloying element oxidation reaction in molten steel in few refining, it is therefore necessary to further decrease refining slag
Oxidisability.Cleanser is added in molten steel, following react can occur in molten steel for cleanser:
Al+3/2 (FeO)=1/2 (Al2O3)+3/2[Fe]
Al+3/2 (MnO)=1/2 (Al2O3)+3/2[Mn]
SiC+3 (FeO)=SiO2+CO↑+3[Fe]
SiC+3 [O]=SiO2+CO↑+3[Fe]
3(TiO2)+C=[Ti3O5]+CO
(FeO+MnO) in refining slag reacts the Fe generated and Mn with cleanser and enters molten steel, Al by slag interface2O3、
SiO2It is refined slag absorption, to reduce oxidation of the refining slag to molten steel.In clean steel smelting process, silicon carbide can in molten steel
Dissolved oxygen and oxide react, reduce molten steel in oxygen content, and react generate CO gas reduce solid-oxide
Generation, CO gas float removal to the stirring action of molten steel further promotes field trash floating remove.Moreover, in steel slag
Oxide promote at high temperature and oxidizing biomass and sulfonated phenol formaldehyde resin decompose and generate H2、CH4, CO, and biomass reverse Ying Su
Degree rapidly, promotes the progress of subsequent reactions, improves the efficiency of reaction；H2、CH4[O] in slag can be reacted, thus directly
[O] content in molten steel is reduced, and reduces the generation of deoxidation type inclusion, the gas of generation is stirred molten steel, and
Small vacuum chamber is formed in molten steel, to promote the floating of field trash, improves the cleanliness of molten steel；And in adhesion component
Sulfonated phenol formaldehyde resin can improve the clean-up effect of molten steel in promotor of the later period as agitation of molten steel.And it can in biomass
With TiO2Reaction, the Ti that above-mentioned reaction generates3O5It is the atomic group of stable big ionic radius, other field trashes can be adsorbed,
It easily floats and is refined slag Adsorption.In addition, the present invention carries out denaturation treatment to field trash by using pulverized limestone, pulverized limestone exists
It is more more stable than calcium metal at a temperature of steel-making, and do not allow it is volatile, do not decompose, and the molten steel due to caused by blowing process will not be generated
Nitrogen pick-up can still keep total oxygen content after deoxidation lower in the original very high situation of molten steel oxygen gesture.
The addition of pulverized limestone can make most solid tufted alumina inclusions become the aluminic acid of low melting point richness CaO low melting point
Calcium is mingled with, and reduces dystectic tufted Al in steel2O3The content being mingled with, and then by high-melting-point brittleness Al2O3It is mingled with and passes through modification
Generate the field trash of low melting point, promote inclusion floating, and easy agglomeration MnS is mingled with partly or entirely be modified to it is tiny
CaS is mingled with, so that cleaning molten steel, improves steel product quality.Scavenger metal aluminium of the invention, carborundum powder, biomass can drop
Oxidisability in low molten steel and slag, and the gas that carborundum powder, biomass reverse should generate is stirred molten steel, promotes molten steel
In inclusion floating, promote steel inclusion float up to slag interface, at the same time cleanser to the field trash in molten steel into
Row is modified, and under cleanser each component collective effect of the present invention, has been reduced the oxidisability in molten steel, can have been effectively facilitated molten steel
Middle field trash removing and inclusion conditioning, modified field trash become multilayered sphere, and field trash is tiny and is evenly distributed, high
Melting point inclusions can change to lower melting point inclusion, be conducive to the removal of field trash, and molten steel under the action of Gas Stirring
Middle remaining inclusion size is smaller, is evenly distributed, and the field trash of remaining passes through denaturation treatment substantially, will not be to steel product
Performance has an impact, so that the quality of molten steel is improved, the total oxygen content after detection is modified in molten steel, and record such as 1 institute of table
Show, data variation is as shown in Figure 1.
Not more using the steel inclusion quantity of cleanser, field trash type is mainly dystectic tufted Al2O3Folder
Miscellaneous, inclusion size accounts for 70% or more greater than 3 μm, account for field trash total amount 20% or so greater than 10 μm.Through molten steel purifying
The amount of inclusions after agent processing in steel is less, and inclusion size is smaller, and size accounts for field trash total amount 80%, folder less than 3 μm
Sundries type is mainly magnesium aluminate spinel and Silicate inclusion object, the Al of individualism in steel2O3It is mingled with less.Experimental study
Show to significantly reduce using agent for purifying molten steel treated inclusion content of steel, steel inclusion is denaturalized, molten steel
Clean-up effect is obvious.Using remaining inclusion size is smaller in cleanser treated the molten steel of embodiment 1, is evenly distributed, and
The field trash of remaining passes through denaturation treatment substantially, will not have an impact to steel product performance.
Total oxygen content/ppm in the molten steel of cleanser front and back is added in table 1
A kind of preparation method for the de- agent for purifying molten steel being mingled with of molten steel of the present embodiment, the specific steps are as follows:
Step 1: preparation bonding component
Kaolin 70kg and sulfonated phenol formaldehyde resin the 30kg drying in drying box are weighed by mass parts, is being stirred after the completion of dry
Mixing 15~20min, the present embodiment 18min in machine is mixed, is uniformly mixed and obtains bonding component；
Step 2: active principle is prepared
Metallic aluminium 60kg, pulverized limestone 30kg, titanium dioxide 18kg, carborundum powder 15kg and biomass are weighed by mass parts
3kg is dry in drying box, stirs 25~30min, the present embodiment 30min, mixing in stirrer for mixing after the completion of drying
Uniformly obtain active principle；
Step 3: cleanser mixture
Bonding component is added in the blender of active principle, and active principle and the mass ratio of bonding component are 8:1,
Mixing is completed to be purified agent mixture；
Step 4: granulation
Cleanser mixture is added in pelletizer, and sprays water into cleanser mixture, cleanser mixture roller press
Under the action of tool power, the bonding of cleanser mixture, granulation obtain granular cleanser, and filter out particle diameter with round-hole mesh
For the cleanser of 5~10mm；The grain diameter of cleanser is 5~10mm, improves contact, mixing of the cleanser particle with molten steel
Effect improves the kinetics of cleanser and molten steel, then will keep the temperature 1h at cleanser in confined conditions 70 DEG C；Then
Cleanser particle is dried to obtain cleanser in drying box, is sealed cleanser after cooling stand-by.CaO during granulation
Modifying process is carried out to biomass, and then improves the intensity of cleanser particle, avoids granule atomization, and biomass is in high temperature item
For part in the decomposition of the biomass under the promotion of metallic element, carborundum powder, biomass and metallic aluminium collective effect reduce molten steel
In oxygen content, generate gas and accelerate the progress of reaction, carborundum powder, biomass can further generate gas and promote field trash
It floating, pulverized limestone, carborundum powder, titanium dioxide improve molten steel and remove during being mingled with the dynamic conditions for being mingled with removal of floating, and
To being modified or adsorbing to field trash, to promote the inclusion floating in molten steel, further promote field trash
Removal, reduces the content of nonmetallic inclusionsin steel, improves the quality of molten steel.
Cleanser of the invention in molten steel field trash removing and will not secondary pollution molten steel research, by the present invention
Remaining inclusion size in the molten steel of removing is smaller, is evenly distributed, and the field trash of remaining passes through denaturation treatment substantially, no
Steel part performance can be had an impact.
Embodiment 2
The basic content of the present embodiment with embodiment 1, the difference is that: cleanser is graininess, and cleanser is spherical shape
Graininess, particle diameter are 5~10mm；Cleanser includes active principle and bonding component, the matter of active principle and bonding component
Amount is than being (5~10): 1, the preferred 5:1 of the present embodiment.
Active principle in the present embodiment cleanser further includes graphite powder, red beautiful soil and magnesium-manganese alloy；Active principle according to
Following mass parts composition, 50~70 parts of metallic aluminium, 20~40 parts of pulverized limestone, 0~30 part of graphite powder, 5~20 parts of titanium dioxide, carbon
5~15 parts of SiClx powder, 2~4 parts of biomass, red beautiful 0~1 part, 0-2 parts of magnesium-manganese alloy of soil；The present embodiment is metallic aluminium 50kg, stone
Ashes 20kg, graphite powder 10kg, titanium dioxide 5kg, carborundum powder 5kg, biomass 4kg, red jade soil 1kg, magnesium-manganese alloy 2kg.
A kind of preparation method for the de- agent for purifying molten steel being mingled with of molten steel of the present embodiment, the specific steps are as follows:
Step 1: preparation bonding component
Kaolin 60kg and sulfonated phenol formaldehyde resin the 20kg drying in drying box are weighed by mass parts, is being stirred after the completion of dry
Mixing 15~20min, the present embodiment 15min in machine is mixed, is uniformly mixed and obtains bonding component；
Step 2: active principle is prepared
By mass parts weigh metallic aluminium 50kg, pulverized limestone 20kg, graphite powder 10kg, titanium dioxide 5kg, carborundum powder 5kg,
Biomass 4kg, red jade soil 1kg and magnesium-manganese alloy 2kg are dry in drying box, stir 25 in stirrer for mixing after the completion of drying
~30min, the present embodiment 25min are uniformly mixed and obtain active principle；
Step 3: cleanser mixture
Bonding component is added in the blender of active principle, and active principle and the mass ratio of bonding component are 5:1,
Mixing is completed to be purified agent mixture；
Step 4: granulation
Cleanser mixture is added in pelletizer, and sprays water into cleanser mixture, cleanser mixture roller press
Under the action of tool power, the bonding of cleanser mixture, granulation obtain granular cleanser, and filter out particle diameter with round-hole mesh
For the cleanser of 5~10mm；Then 1h will be kept the temperature at cleanser in confined conditions 75 DEG C；Then by cleanser particle in drying
It is dried to obtain cleanser in case, seals cleanser after cooling stand-by.Total oxygen content after detection is modified in molten steel, and record
As shown in table 1, data variation is as shown in Figure 1.Using remaining inclusion size in cleanser treated the molten steel of embodiment 2 compared with
It is small, be evenly distributed, steel product performance will not be had an impact.
The present invention further improves deoxidation effect, this may be due to metallic aluminium, graphite powder, biomass, silicon carbide, red
Beautiful soil and magnesium-manganese alloy powder collective effect promote the removing of the oxygen in molten steel, on the one hand magnesium-manganese alloy powder has preferable deoxidation
Effect, and magnesium-manganese alloy powder further promotes the substances such as metallic aluminium, biomass and silicon carbide and carries out deoxidation, and graphite
The gas that powder, biomass and carborundum powder reaction generate is stirred molten steel, and red beautiful soil and the common reaction of titanium dioxide produce
Object adsorbs field trash, promotes the floating of field trash, and then improves the quality of molten steel.
Embodiment 3
The basic content of the present embodiment with embodiment 1, the difference is that: the bonding component of cleanser further include starch and
Kaolin, bonding component are formed according to following mass parts: 60~80 parts of kaolin, 20~40 parts of sulfonated phenol formaldehyde resin, and starch 0-
10 parts, 0-5 parts of oil-sand.The present embodiment is formed according to following quality: kaolin 80kg, sulfonated phenol formaldehyde resin 40kg, starch 5kg,
Oil-sand 2kg.Total oxygen content after detection is modified in molten steel, and record as shown in table 1, data variation is as shown in Figure 1.Effective group
Divide and the mass ratio of bonding component is 6:1, mixing is completed to be purified agent mixture.
A kind of preparation method for the de- agent for purifying molten steel being mingled with of molten steel of the present embodiment, the specific steps are as follows:
Step 1: preparation bonding component
It is dry in drying box that kaolin 80kg, sulfonated phenol formaldehyde resin 40kg, starch 5kg and oil-sand 2kg are weighed by mass parts
It is dry, 15~20min, the present embodiment 20min are stirred in stirrer for mixing after the completion of drying, is uniformly mixed and obtains bonding group
Point；
Step 2: active principle is prepared
Metallic aluminium 60kg, pulverized limestone 30kg, titanium dioxide 18kg, carborundum powder 15kg and biomass are weighed by mass parts
3kg is dry in drying box, stirs 25~30min, the present embodiment 28min, mixing in stirrer for mixing after the completion of drying
Uniformly obtain active principle；
Step 3: cleanser mixture
Bonding component is added in the blender of active principle, and active principle and the mass ratio of bonding component are 6:1,
Mixing is completed to be purified agent mixture；
Step 4: granulation
Cleanser mixture is added in cuber, and sprays water into cleanser mixture, cleanser mixture is in briquetting
Under the action of machine pressurization, the bonding of cleanser mixture, granulation obtain granular cleanser, and it is straight with round-hole mesh to filter out particle
Diameter is the cleanser of 5~10mm；Then 1h will be kept the temperature at cleanser in confined conditions 80 DEG C；Then by cleanser particle dry
It is dried to obtain cleanser in dry case, seals cleanser after cooling stand-by.
Embodiment 4
The basic content of the present embodiment with embodiment 2, the difference is that: cleanser is graininess, and cleanser is spherical shape
Graininess, particle diameter are 5~10mm；Cleanser includes active principle and bonding component, the matter of active principle and bonding component
Amount is than being (5~10): 1, the preferred 10:1 of the present embodiment.
Active principle in the present embodiment cleanser further includes urea, and the urea is graininess；The present embodiment is gold
Belong to aluminium 70kg, pulverized limestone 40kg, graphite powder 30kg, titanium dioxide 20kg, carborundum powder 15kg, biomass 2kg, red jade soil 1kg,
Magnesium-manganese alloy 1kg, urea 0.2kg.By cleanser in molten steel, the total oxygen content after being modified in molten steel is then detected, and remember
As shown in table 1, data variation is as shown in Figure 1 for record.Remaining inclusion size is smaller in treated molten steel, is evenly distributed, and residual
The field trash deposited passes through denaturation treatment substantially, will not have an impact to steel product performance.The present invention further improves de-
Oxygen effect, this may be since metallic aluminium, graphite powder, biomass, silicon carbide, Chi Yutu, magnesium-manganese alloy powder and urea are made jointly
With the removing of the oxygen promoted in molten steel, on the one hand magnesium-manganese alloy powder has a preferable deoxidation effect, and magnesium-manganese alloy powder into
The substances such as metallic aluminium, biomass and silicon carbide that promote of one step carry out deoxidation, and graphite powder, biomass and carborundum powder reaction
The gas of generation is stirred molten steel, and especially urea can decompose rapidly generation decomposition product, the ammonia in decomposition product when heated
Substance has stronger reproducibility, improves deoxidation effect, and the gas that reaction product generates is stirred molten steel, improves
The floating of field trash.
Embodiment 5
The basic content of the present embodiment with embodiment 2, the difference is that: cleanser is graininess, and cleanser is spherical shape
Graininess, particle diameter are 5~10mm；Cleanser includes active principle and bonding component, the matter of active principle and bonding component
Amount is than being (5~10): 1, the preferred 9:1 of the present embodiment.Active principle in the present embodiment cleanser further includes peat, the present embodiment
For metallic aluminium 70kg, pulverized limestone 40kg, graphite powder 30kg, titanium dioxide 20kg, carborundum powder 15kg, biomass 2kg, Chi Yutu
1kg, magnesium-manganese alloy 1kg, peat 1kg.Cleanser is added in molten steel, the total oxygen content after then detection is modified in molten steel,
And record as shown in table 1, data variation is as shown in Figure 1.
Using in cleanser of the invention metallic aluminium, graphite powder, biomass, silicon carbide, Chi Yutu, magnesium-manganese alloy powder and
Peat collective effect promotes the removing of the oxygen in molten steel, on the one hand magnesium-manganese alloy powder has preferable deoxidation effect, and magnesium
Manganese alloy powder further promotes the substances such as metallic aluminium, biomass and silicon carbide and carries out deoxidation, and graphite powder, biomass and carbon
The gas that the reaction of SiClx powder generates is stirred molten steel, improves deoxidation effect；It is furthermore possible to effectively facilitate in molten steel and be mingled with
Object removing and inclusion conditioning, modified field trash become multilayered sphere, tiny and be evenly distributed, high-melting-point field trash energy
It is enough to change to lower melting point inclusion, be conducive to the removal of field trash, and in treated molten steel remaining inclusion size it is smaller, point
Cloth is uniform, and the field trash of remaining passes through denaturation treatment substantially, will not have an impact to steel product performance；In addition, reaction
The gas that product generates is stirred molten steel, improves the floating of field trash.
The present invention is described in detail above in conjunction with specific exemplary embodiment.It is understood, however, that can not take off
It is carry out various modifications in the case where from the scope of the present invention being defined by the following claims and modification.Detailed description and drawings
Should be to be considered only as it is illustrative and not restrictive, if there is any such modifications and variations, then they all will
It falls into the scope of the present invention described herein.In addition, Development Status and meaning that background technique is intended in order to illustrate this technology,
It is not intended to limit the present invention or the application and application field of the invention.
More specifically, although exemplary embodiment of the present invention has been described herein, the invention is not limited to
These embodiments, but including those skilled in the art according to front detailed description it can be appreciated that it is modified, omit,
Any and whole embodiments of (such as between each embodiment) combination, adaptive change and/or replacement.In claim
It limits the language according to used in claim and is widely explained, and be not limited in foregoing detailed description or in reality
The example described during this application is applied, these examples should be considered as nonexcludability.For example, in the present invention, term is " preferably
Ground " be not it is exclusive, here it means that " preferably, but be not restricted to that ".It is in office where method or process claims
In any step for enumerating can execute in any order and be not limited to the sequence proposed in claim.Therefore, of the invention
Range should only be determined by appended claims and its legal equivalents, rather than by descriptions and examples given above Lai
It determines.
Claims (9)
1. a kind of for the de- agent for purifying molten steel being mingled with of molten steel, which is characterized in that the cleanser is graininess, including effective
The mass ratio of component and bonding component, active principle and bonding component is (5~10): 1；The active principle includes metal
Aluminium, pulverized limestone, carborundum powder, titanium dioxide and biomass, active principle further include urea；The bonding component includes height
Ridge soil and sulfonated phenol formaldehyde resin.
2. according to claim 1 a kind of for the de- agent for purifying molten steel being mingled with of molten steel, it is characterised in that: active principle is also
Including graphite powder, red beautiful soil and magnesium-manganese alloy.
3. agent for purifying molten steel according to claim 1, it is characterised in that: each component in the active principle is powder
Shape, and granularity≤0.1mm.
4. according to claim 1-3 a kind of for the de- agent for purifying molten steel being mingled with of molten steel, it is characterised in that: institute
The bonding component stated further includes starch and oil-sand.
5. according to claim 4 a kind of for the de- agent for purifying molten steel being mingled with of molten steel, it is characterised in that: the bonding
Component is formed according to following mass parts:
6. according to claim 4 a kind of for the de- agent for purifying molten steel being mingled with of molten steel, it is characterised in that: described effective group
Divide and the mass ratio of bonding component is (5~8): 1.
7. according to claim 5 or 6 a kind of for the de- agent for purifying molten steel being mingled with of molten steel, it is characterised in that: described to have
Effect component and bonding component bind to form granular cleanser by cuber or disc balling machine.
8. according to claim 7 a kind of for the de- agent for purifying molten steel being mingled with of molten steel, it is characterised in that: the cleanser
For form of spherical particles, particle diameter is 5~10mm.
9. according to claim 8 a kind of for the de- agent for purifying molten steel being mingled with of molten steel, it is characterised in that: the metallic aluminium
In Al content be greater than 92%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710389696.5A CN107130084B (en) | 2017-05-27 | 2017-05-27 | It is a kind of to take off the agent for purifying molten steel being mingled with for molten steel |
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|---|---|---|---|
| CN201710389696.5A CN107130084B (en) | 2017-05-27 | 2017-05-27 | It is a kind of to take off the agent for purifying molten steel being mingled with for molten steel |
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| CN107130084B true CN107130084B (en) | 2019-05-07 |
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| CN110551873B (en) * | 2019-10-09 | 2021-03-02 | 王强 | Harmless process for artificial diamond waste graphite powder |
| CN113151638B (en) * | 2021-01-04 | 2022-08-30 | 湖南紫荆新材料科技有限公司 | Composite molten steel purifying agent and preparation method thereof |
| CN113136477A (en) * | 2021-05-04 | 2021-07-20 | 滨州永泰不锈钢制品有限公司 | Molten steel purifying agent for stainless steel and preparation and application methods thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410557A (en) * | 2002-12-03 | 2003-04-16 | 黄雁茹 | Aluminium slagging deoxygen ball |
| CN1521279A (en) * | 2003-01-27 | 2004-08-18 | 梅一峰 | High alumina slag ball and preparing method thereof |
-
2017
- 2017-05-27 CN CN201710389696.5A patent/CN107130084B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410557A (en) * | 2002-12-03 | 2003-04-16 | 黄雁茹 | Aluminium slagging deoxygen ball |
| CN1521279A (en) * | 2003-01-27 | 2004-08-18 | 梅一峰 | High alumina slag ball and preparing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 碳化硅的用途;余森;《碳化硅磨料制造》;19820331;第20-21页 |
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