CN110510882A - A kind of pyroxene base cast stone and preparation method thereof - Google Patents
A kind of pyroxene base cast stone and preparation method thereof Download PDFInfo
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- CN110510882A CN110510882A CN201910907935.0A CN201910907935A CN110510882A CN 110510882 A CN110510882 A CN 110510882A CN 201910907935 A CN201910907935 A CN 201910907935A CN 110510882 A CN110510882 A CN 110510882A
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- pyroxene
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0063—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing waste materials, e.g. slags
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- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Processing Of Solid Wastes (AREA)
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Abstract
The invention discloses a kind of pyroxene base cast stones and preparation method thereof, it is by being prepared using stainless steel slag, pickling sludge, quartz sand and certain magnesite, it will wherein Cr element be sealed in magnesia chrome spinel mine phase by controlling technological parameter, and magnesia chrome spinel itself is excellent Nucleating Agent, simultaneously in view of pyroxene mutually in the epitaxy phenomenon on spinelle surface, it ultimately forms using Spinel as kernel, the mineral phase structure of outer package pyroxene phase, this mineral phase structure effectively controls Cr leaching, security performance height.
Description
Technical field
The present invention relates to cast stone processing technique fields, more particularly to a kind of pyroxene base cast stone and preparation method thereof.
Background technique
China's stainless steel industry fast development produces a large amount of solid wastes containing chromium, and wherein pickling sludge was defined in 2018
It is classified as dangerous solid waste.In addition to this, annual 30000000 tons or more of stainless steel output brings containing chromium smelting sludge nearly 10,000,000 tons.
Chromium content about fluctuates within the scope of 0.5%-3% in this kind of containing chromium slag, and separation and recovery value is little.On the one hand long-term stockpiling wastes
Land resource, the on the other hand harm in view of the leaching of Cr to human body and environment have huge security risk.Currently, such
The recycling treatment of the solid waste containing chromium has become the key factor of limitation stainless steel industry sustainable development.
Chemical stabilization/solidification of chromium is to limit the effective way of Cr Elements Leaching.Realize Cr element chemistry stabilize/
On the basis of cured, stainless steel slag and pickling sludge are prepared into green safe building materials and realize industrial application, undoubtedly this
The desirable route of class solid wastes recycling containing chromium processing.Have both at home and abroad at present and prepares the correlation of devitrified glass specially using solid waste containing chromium
Benefit.Such as: a kind of devitrified glass and preparation method thereof (application number: 201810856304.6), green glass-ceramic and its preparation
Method (application number: 201711260307.5), a kind of method (application preparing devitrified glass using stainless steel slag and fluorite tailing
Number: 201710631368.1), a kind of full waste material short route prepare the method (application number: 201610426057.7) of devitrified glass.
Common issue existing for the above technology is: (1) preparation process is two-step method, and heating solid waste containing chromium first is (with addition of a certain proportion of
Modification agent) to molten state, it is cooling after heat preservation a period of time obtain female glass, secondly female glass after cooling is heated to centainly
Temperature is heat-treated, and crystallized glass article is finally obtained.Need heating melting/heat preservation/cooling, reheating/heat preservation/cooling two
Step, technique is relative complex, and energy consumption is high, at high cost；(2) mineral phase structure of Cr element in the final article, Cr are not provided clearly
Long-term leaching behavior be difficult Scientific evaluation.
Cast stone is a kind of inorganic material haveing excellent performance, under the conditions of the extreme environment of part, in view of its it is excellent it is wear-resisting,
The service performance of corrosion-resistant characteristic, high-quality cast stone is much better than stainless steel and other metal materials.Cast stone at present is prepared to use natural stone
Based on material.CaO, Al rich in the solid wastes such as above-mentioned stainless steel containing chromium slag2O3、MgO、SiO2Equal constituent elements, Cong Qihua
Learn can be prepared into artificial cast stone from the point of view of forming completely.But the cast stone of different crystal phase structures, nature difference is huge, prepares simultaneously
Artificial cast stone be possible in the contact with environment, the leaching phenomenon of poisonous and hazardous heavy metal element occurs.Therefore it is making
The solidification of performance and dangerous element is comprehensively considered when standby.
It is crucial that can by control technological parameter will wherein Cr element be sealed in it is (existing in magnesia chrome spinel mine phase
Technical research shows that Cr is most stable in magnesia chrome spinel phase, leaching security performance is optimal), and magnesia chrome spinel itself is
Excellent Nucleating Agent, while in view of pyroxene mutually in the epitaxy phenomenon on spinelle surface, it is interior for ultimately forming with Spinel
The mineral phase structure of core, outer package pyroxene phase, this mineral phase structure be undoubtedly effectively control Cr leach, extremely excellent best of security performance
It ensures.In addition, only need heating melting/one step of heat preservation/cooling in terms of preparation process, compared with aforementioned techniques, step is simple,
Easy to operate, cost and energy consumption reduce, and have broad application prospects.
Summary of the invention
The object of the present invention is to provide a kind of pyroxene base cast stones.It is a further object of the present invention to provide pyroxene base castings
The preparation method of stone.The present invention passes through control by being prepared using stainless steel slag, pickling sludge, quartz sand and magnesite
Technological parameter will wherein Cr element be sealed in magnesia chrome spinel mine phase, and magnesia chrome spinel itself is excellent Nucleating Agent,
It is ultimately formed simultaneously mutually in the epitaxy phenomenon on spinelle surface using Spinel as kernel, outer package pyroxene in view of pyroxene
The mineral phase structure of phase, this mineral phase structure effectively control Cr leaching, security performance height.
Pyroxene base cast stone of the invention, the raw material including following weight fraction: 3 parts of stainless steel slag, 1 part of pickling sludge, stone
4 parts of sand, 2 parts of magnesite, the pickling sludge includes 5-12wt%Cr2O3, 17-25wt%Fe2O3, 34-48wt%CaF2,
Yu Weishui.
Preferably, the stainless steel slag includes CaO:48-67wt%, SiO2: 26-29wt%, MgO:4-8wt%, Al2O3:
1-5wt%, Cr2O3: 1-5wt%, remaining is iron and inevitable impurity.
Preferably, the quartz sand includes 90-99wt%SiO2, remaining is inevitable impurity.
Preferably, the content of magnesia is 44-47wt% in the magnesite.
Preferably, the pyroxene base cast stone includes the component of following weight percent: 14-20%CaO, 10-15%MgO,
45-50%SiO2, 1.3-3.0%Cr2O3, 3.0-5.0%CaF2, remaining is iron and inevitable impurity.
Preferably, it is mutually kernel that the crystal phase structure of the pyroxene base cast stone, which is with magnesia chrome spinel, outer package pyroxene phase
Mineral phase structure.
The preparation method of pyroxene base cast stone of the invention, comprising the following steps:
S1, after mixing stainless steel slag, pickling sludge and flyash in proportion, pulverization process is carried out, and cross 100-200
Mesh；
S2, by step S1 sieving after mixed material be placed in alumina crucible carried out in tube furnace it is melted, it is described be melted
Temperature is 1450-1550 DEG C, and keeps the temperature 1-3h, melts it sufficiently uniformly；
S3, mixed material of the step S2 after melted is poured into graphite jig, and mold is placed in Muffle furnace in 800-
Heat treatment crystallization 1-5h is carried out in 1200 DEG C, and solidification cast stone is obtained after furnace cooling；
S4, cured cast stone is obtained to pyroxene base cast stone after sanding and polishing.
Preferably, the heat treatment temperature crystallinity in the step S3 is 900 DEG C, and being heat-treated crystallization time is 3h.
Compared with prior art, the invention has the following advantages: the preparation of (1) current cast stone is mainly with lithotome
Based on, such as basalt, diabase, limestone, dolomite, amphibolite etc., this technology mainly utilize stainless steel slag, pickling dirty
The solid wastes such as mud, flyash save lithotome, while promoting secondary resource, especially the class of dangerous waste containing chromium solid waste, it is comprehensive sharp
With；(2) compared with the existing technology for preparing devitrified glass using solid wastes containing chromium such as stainless steel slags, have the advantages that following three: one
It is in terms of preparation process, the preparation of devitrified glass needs heating melting/heat preservation/cooling, reheating/two step of heat preservation/cooling, this
Technology only needs heating melting/one step of heat preservation/cooling, simple process, easy to operate, and low energy consumption, at low cost；Second is that this technology is developed
Product to have with magnesia chrome spinel be mutually kernel, the mineral phase structure of outer package pyroxene phase, be the pyroxene using spinelle as core
The microscopic appearance mutually grown up around Spinel.Wherein Spinel is scattered in product, and the pyroxene of formation is mutually interweaved, pole
The physical property for improving product of big degree.Meanwhile during pyroxene is mutually grown up, glass phase sufficiently changes, and makes its knot
Structure is more fine and close.This is the double shield that effective control Cr leached, guaranteed security performance；Third is that the cast stone of this technology exploitation produces
Product, for Mohs' hardness up to 7, flexural strength has more excellent wear-resisting and resistance to chemical corrosion up to 140Mpa.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the SEM figure of pyroxene base cast stone prepared by the embodiment of the present invention 1.
Specific embodiment
Below with reference to embodiment and attached drawing, the invention will be further described.
Embodiment 1
A kind of preparation method of pyroxene base cast stone, comprising the following steps:
S1, the stainless steel slag for containing following weight percent component: 55wt%CaO, 28wt%SiO is chosen2, 5wt%
MgO, 5wt%Al2O3, 5wt%Cr2O3, remaining is iron and inevitable impurity；Pickling sludge includes following weight percent
Component: 10wt%Cr2O3, 20wt%Fe2O3, 40wt%CaF2, remaining is water；The quartz sand contains 95wt%SiO2；Institute
The content for stating magnesia in magnesite is 45wt%.
After weighing 2 parts of 3 parts of above-mentioned stainless steel slag, 1 part of pickling sludge, 4 parts of quartz sand and magnesite and being sufficiently mixed, carry out
Pulverization process, and sieve with 100 mesh sieve；
S2, by step S1 sieving after mixed material be placed in alumina crucible carried out in tube furnace it is melted, it is described be melted
Temperature is 1500 DEG C, and keeps the temperature 2h, melts it sufficiently uniformly；
S3, mixed material of the step S2 after melted is poured into graphite jig, and mold is placed in Muffle furnace at 900 DEG C
In carry out heat treatment crystallization 3h, obtained after furnace cooling solidification cast stone；
S4, cured cast stone is obtained to pyroxene base cast stone after sanding and polishing, as shown in Figure 1.Embodiment preparation
The mass fraction of each component in pyroxene base cast stone: 16.5wt%CaO, 46.4wt%SiO2, 10.5wt%MgO, 1.5wt%
Al2O3, 2.5wt%Cr2O3, 2wt%Fe2O3, 4wt%CaF2, remaining is impurity.
Embodiment 2
A kind of preparation method of pyroxene base cast stone, comprising the following steps:
S1, the stainless steel slag for containing following weight percent component: 48wt%CaO, 26wt%SiO is chosen2, 8wt%
MgO, 5wt%Al2O3, 5wt%Cr2O3, remaining is iron and inevitable impurity；Pickling sludge includes following weight percent
Component: 12wt%Cr2O3, 20wt%Fe2O3, 45wt%CaF2；The quartz sand contains 95wt%SiO2；In the magnesite
The content of magnesia is 45wt%.
After weighing 2 parts of 3 parts of above-mentioned stainless steel slag, 1 part of pickling sludge, 4 parts of quartz sand and magnesite and being sufficiently mixed, carry out
Pulverization process, and sieve with 100 mesh sieve；
S2, by step S1 sieving after mixed material be placed in alumina crucible carried out in tube furnace it is melted, it is described be melted
Temperature is 1450 DEG C, and keeps the temperature 3h, melts it sufficiently uniformly；
S3, mixed material of the step S2 after melted is poured into graphite jig, and mold is placed in Muffle furnace 1000
Heat treatment crystallization 2h is carried out in DEG C, and solidification cast stone is obtained after furnace cooling；
S4, cured cast stone is obtained to pyroxene base cast stone after sanding and polishing.The pyroxene base cast stone of embodiment preparation
The mass fraction of middle each component: 14.4wt%CaO, 45.8wt%SiO2, 11.4wt%MgO, 1.5wt%Al2O3, 2.7wt%
Cr2O3, 2wt%Fe2O3, 4.5wt%CaF2, remaining is impurity.
Embodiment 3
S1, the stainless steel slag for containing following weight percent component: 67wt%CaO, 27wt%SiO is chosen2, 5wt%
MgO, 1wt%Al2O3, 1wt%Cr2O3, remaining is iron and inevitable impurity；Pickling sludge includes following weight percent
Component: 10wt%Cr2O3, 17wt%Fe2O3, 34wt%CaF2；The quartz sand contains 99wt%SiO2；In the magnesite
The content of magnesia is 45wt%.
After weighing 2 parts of 3 parts of above-mentioned stainless steel slag, 1 part of pickling sludge, 4 parts of quartz sand and magnesite and being sufficiently mixed, carry out
Pulverization process, and sieve with 100 mesh sieve；
S2, by step S1 sieving after mixed material be placed in alumina crucible carried out in tube furnace it is melted, it is described be melted
Temperature is 1550 DEG C, and keeps the temperature 1h, melts it sufficiently uniformly；
S3, mixed material of the step S2 after melted is poured into graphite jig, and mold is placed in Muffle furnace 1200
Heat treatment crystallization 1h is carried out in DEG C, and solidification cast stone is obtained after furnace cooling；
S4, cured cast stone is obtained to pyroxene base cast stone after sanding and polishing.The pyroxene base cast stone of embodiment preparation
The mass fraction of middle each component: 20.0wt%CaO, 47.7wt%SiO2, 10.5wt%MgO, 0.3wt%Al2O3, 1.3wt%
Cr2O3, 1.7wt%Fe2O3, 3.4wt%CaF2, remaining is impurity.
Embodiment according to the present invention 1-3, its crystal phase structure of pyroxene base cast stone of the invention is the brightness using spinelle as core
Stone is mutually grown up around Spinel.The cast stone material wear-resistant and resistance to chemical corrosion being prepared are excellent, and Mohs' hardness is up to
7, flexural strength is up to 140Mpa, and acid-fast alkali-proof is 99.5% or more.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (8)
1. a kind of pyroxene base cast stone, which is characterized in that the raw material including following weight fraction:
3 parts of stainless steel slag, 1 part of pickling sludge, 4 parts of quartz sand, 2 parts of magnesite, the pickling sludge includes 5-12wt%Cr2O3,
17-25wt%Fe2O3, 34-48wt%CaF2, remaining is water.
2. pyroxene base cast stone according to claim 1, which is characterized in that the stainless steel slag includes CaO:48-67wt%,
SiO2: 26-29wt%, MgO:4-8wt%, Al2O3: 1-5wt%, Cr2O3: 1-5wt%, remaining for iron and inevitably it is miscellaneous
Matter.
3. pyroxene base cast stone according to claim 1, which is characterized in that the quartz sand includes 90-99wt%SiO2,
Remaining is inevitable impurity.
4. pyroxene base cast stone according to claim 1, which is characterized in that the mass fraction of magnesia is in the magnesite
44-47wt%.
5. pyroxene base cast stone according to claim 1, which is characterized in that the pyroxene base cast stone includes following weight percent
Several component: 14-20%CaO, 10-15%MgO, 45-50%SiO2, 1.3-3.0%Cr2O3, 3.0-5.0%CaF2, remaining is
Iron and inevitable impurity.
6. pyroxene base cast stone according to claim 5, which is characterized in that the crystal phase structure of the pyroxene base cast stone is with magnesium
Picotite is mutually the mineral phase structure of kernel, outer package pyroxene phase.
7. the preparation method of pyroxene base cast stone described in -6 any one according to claim 1, which is characterized in that including following step
It is rapid:
S1, after mixing stainless steel slag, pickling sludge and flyash in proportion, pulverization process is carried out, and cross 100-200 mesh
Sieve；
S2, the mixed material after step S1 sieving is placed in alumina crucible and carries out melted, the glass melting temperature in tube furnace
It is 1450-1550 DEG C, and keeps the temperature 1-3h, melts it sufficiently uniformly；
S3, mixed material of the step S2 after melted is poured into graphite jig, and mold is placed in Muffle furnace in 800-1200
Heat treatment crystallization 1-5h is carried out in DEG C, and solidification cast stone is obtained after furnace cooling；
S4, cured cast stone is obtained to pyroxene base cast stone after sanding and polishing.
8. the preparation method of pyroxene base cast stone according to claim 7, which is characterized in that the heat treatment in the step S3
Warm crystallinity is 900 DEG C, and being heat-treated crystallization time is 3h.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111499203A (en) * | 2020-05-20 | 2020-08-07 | 冯承湖 | Method for manufacturing cast stone and cooperatively treating hazardous wastes by utilizing red mud |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445944A (en) * | 2014-12-16 | 2015-03-25 | 北京科技大学 | Method for preparing microcrystalline glass from hazardous solid wastes |
-
2019
- 2019-09-25 CN CN201910907935.0A patent/CN110510882B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445944A (en) * | 2014-12-16 | 2015-03-25 | 北京科技大学 | Method for preparing microcrystalline glass from hazardous solid wastes |
Non-Patent Citations (3)
| Title |
|---|
| 杨健: "《含铬钢渣制备微晶玻璃及进一步热处理研究》", 《中国博士学位论文全文数据库 工程科技L辑》 * |
| 范文迪: "《垃圾焚烧飞灰微晶玻璃化及Cr固化机理》", 《中国博士学位论文全文数据库 工程科技1辑》 * |
| 诸培南等主编: "《无机非金属材料显微结构图册》", 31 December 1994, 武汉工业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111499203A (en) * | 2020-05-20 | 2020-08-07 | 冯承湖 | Method for manufacturing cast stone and cooperatively treating hazardous wastes by utilizing red mud |
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