CN107973586A - Handle the method and Ceramic Tiles of ferrochrome slag - Google Patents
Handle the method and Ceramic Tiles of ferrochrome slag Download PDFInfo
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- CN107973586A CN107973586A CN201711185624.5A CN201711185624A CN107973586A CN 107973586 A CN107973586 A CN 107973586A CN 201711185624 A CN201711185624 A CN 201711185624A CN 107973586 A CN107973586 A CN 107973586A
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- ceramic tiles
- ferrochrome slag
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- 229910000604 Ferrochrome Inorganic materials 0.000 title claims abstract description 76
- 239000002893 slag Substances 0.000 title claims abstract description 73
- 239000000919 ceramic Substances 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 59
- 239000008187 granular material Substances 0.000 claims abstract description 55
- 239000002994 raw material Substances 0.000 claims abstract description 38
- 239000004927 clay Substances 0.000 claims abstract description 22
- 239000003595 mist Substances 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims description 21
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 13
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 239000003818 cinder Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 10
- 238000004064 recycling Methods 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 19
- 229910052593 corundum Inorganic materials 0.000 description 19
- 229910001845 yogo sapphire Inorganic materials 0.000 description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 239000011449 brick Substances 0.000 description 11
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 10
- 238000010304 firing Methods 0.000 description 10
- 239000010453 quartz Substances 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 6
- 229910052681 coesite Inorganic materials 0.000 description 6
- 229910052906 cristobalite Inorganic materials 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 229910052682 stishovite Inorganic materials 0.000 description 6
- 229910052905 tridymite Inorganic materials 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000010433 feldspar Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- XYQHCDPZBXIAGW-UHFFFAOYSA-N Andesine Natural products COC(=O)C1=Cc2ccc3c(CCN(C)C)cc(OC)c(O)c3c2C(=O)O1 XYQHCDPZBXIAGW-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910052658 andesine Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- 235000021321 essential mineral Nutrition 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910052609 olivine Inorganic materials 0.000 description 2
- 239000010450 olivine Substances 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
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- C—CHEMISTRY; METALLURGY
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62695—Granulation or pelletising
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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Abstract
The invention discloses the method and Ceramic Tiles of processing ferrochrome slag.This method includes：(1) ferrochrome slag, clay and sandstone are mixed, to obtain mixed material；(2) mixed material is subjected to levigate processing, to obtain granular material；(3) granular material is subjected to mist projection granulating processing, to obtain granule materials；(4) granule materials are subjected to forming processes, to obtain raw material plate；And raw material plate is dried processing and burnt till by (5) successively, to obtain Ceramic Tiles.This method can effectively utilize the Ceramic Tiles that metallurgical waste ferrochrome slag prepares high-quality, open the new way of ferrochrome slag recycling, have significant economic benefit and environmental benefit.
Description
Technical field
The present invention relates to building material field, and specifically, the present invention relates to the method and Ceramic Tiles of processing ferrochrome slag.
Background technology
It is annual probably to produce about 400~5,000,000 tons during preparing ferrochrome using chromite production in China
Ferrochrome slag, also known as ferrochrome slag.Cr containing high level in ferrochrome slag2O3, and the ion for having part high-valence state is deposited
, prolonged stockpiling processing, not only brings greater impact to environment, in ferrochrome slag moisture exudation enters underground water, also general
Great threat is brought to the life security of resident.
However, the means of existing processing ferrochrome slag still need further to be developed.
The content of the invention
It is contemplated that solve at least some of the technical problems in related technologies.For this reason, the present invention
One purpose is the method and Ceramic Tiles for proposing processing ferrochrome slag.This method can effectively utilize metallurgical waste ferrochrome slag system
The Ceramic Tiles of standby high-quality, open the new way of ferrochrome slag recycling, have significant economic benefit and environmental benefit.
In the first aspect of the present invention, the present invention proposes a kind of method for handling ferrochrome slag.Implement according to the present invention
Example, this method include：(1) ferrochrome slag, clay and sandstone are mixed, to obtain mixed material；(2) by the mixture
Material carries out levigate processing, to obtain granular material；(3) granular material is subjected to mist projection granulating processing, to obtain
Grain material；(4) granule materials are subjected to forming processes, to obtain raw material plate；And (5) by the raw material plate successively into
Row drying process and burn till, to obtain Ceramic Tiles.
The method of processing ferrochrome slag according to embodiments of the present invention, by the way that ferrochrome slag, clay and sandstone are mixed, and
Obtained mixed material is subjected to levigate processing, obtains granular material, and then granular material is subjected to mist projection granulating processing, is obtained
Granule materials, after granule materials are molded, are dried processing to obtained raw material plate and burn till, you can pottery is prepared successively
Tile product.This method substitutes the raw materials such as feldspar and the quartz that Ceramic Tiles are used to prepare in traditional handicraft by using ferrochrome slag,
While ferrochrome slag recycling approach is widened, the use of the valuable first resource such as feldspar and quartz is considerably reduced
Amount, and the Ceramic Tiles being prepared meet GB/T4100-2015 standards, breakdown strength is higher than traditional ceramics brick.Thus, this method
The Ceramic Tiles that metallurgical waste ferrochrome slag prepares high-quality can be effectively utilized, open the new way of ferrochrome slag recycling
Footpath, reduces the consumption of first resource, has significant economic benefit and environmental benefit.
In addition, the method for processing ferrochrome slag according to the above embodiment of the present invention can also have technology spy additional as follows
Sign：
In some embodiments of the invention, in step (1), the ferrochrome cinder ladle includes：The CaO of 2~3 parts by weight, 25~
The SiO of 30 parts by weight2, 25~30 parts by weight MgO, the Al of 15~20 parts by weight2O3, 3~8 parts by weight Cr2O3, 0.3~0.5
The TiO of parts by weight2, the TFe of 3~4 parts by weight and the alkali metal oxide of 0.2~0.4 parts by weight.
In some embodiments of the invention, in step (1), the quality of the ferrochrome slag, the clay and the sandstone
Than for (50~80):(20~30):(0~20).Thus, it is possible to further improve the utilization rate of metallurgical waste ferrochrome slag.
In some embodiments of the invention, in step (2), powder of the particle diameter not higher than 45 μm contains in the granular material
Amount is not less than 90%.
In some embodiments of the invention, in step (3), the average grain diameters of the granule materials is 0.5~1mm, water
It is 6~10wt% to divide content.
In some embodiments of the invention, in step (4), the forming processes are complete under the pressure of 15~40MPa
Into.
In some embodiments of the invention, in step (5), the drying process be at 105~120 DEG C carry out 20~
What 24h was completed.
In some embodiments of the invention, in step (5), it is described burn till be at 1120~1180 DEG C carry out 20~
What 60min was completed.
In the second aspect of the present invention, the present invention proposes a kind of Ceramic Tiles.According to an embodiment of the invention, the Ceramic Tiles
It is to be prepared by using the method for the processing ferrochrome slag of above-described embodiment.
Ceramic Tiles according to embodiments of the present invention are by using metallurgical waste ferrochrome slag as raw material, considerably reducing tradition
The consumption of the first resources such as ceramic process for producing bricks andesine and quartz, while effectively widened ferrochrome slag recycling way
Footpath, and the Ceramic Tiles that should be prepared by ferrochrome slag meet GB/T4100-2015 standards, breakdown strength is higher than traditional ceramics brick.
The essential mineral composition of the Ceramic Tiles is cordierite, olivine and clinopyroxene, wherein heavy metal ion Cr3+It is consolidated in clinopyroxene
Interior, no exudation is environmentally safe.
In addition, Ceramic Tiles according to the above embodiment of the present invention can also have technical characteristic additional as follows：
In some embodiments of the invention, the Ceramic Tiles include：The SiO of 32~54wt%2, 13~16wt%
Al2O3, 13~24wt% MgO, the Cr of 4~8wt%2O3, 3~6wt% Fe2O3, 2.5~3.5wt% CaO, 0.3~
The TiO of 0.6wt%2With the alkali metal oxide of 0.5~1wt%.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the method flow schematic diagram of processing ferrochrome slag according to an embodiment of the invention.
Embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, and is only used for explaining this hair
It is bright, and be not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to text in the art
Offer described technology or condition or carried out according to product description.Reagents or instruments used without specified manufacturer,
For can be with conventional products that are commercially available.
In the first aspect of the present invention, the present invention proposes a kind of method for handling ferrochrome slag.Implement according to the present invention
Example, with reference to figure 1, this method includes：(1) ferrochrome slag, clay and sandstone are mixed, to obtain mixed material；(2) will be mixed
Compound material carries out levigate processing, to obtain granular material；(3) granular material is subjected to mist projection granulating processing, to obtain
Grain material；(4) granule materials are subjected to forming processes, to obtain raw material plate；And place is dried in raw material plate by (5) successively
Manage and burn till, to obtain Ceramic Tiles.
The method of processing ferrochrome slag according to embodiments of the present invention is described in detail below with reference to Fig. 1.According to this hair
Bright embodiment, this method include：
S100：Mixed processing
In the step, ferrochrome slag, clay and sandstone are mixed, to obtain mixed material.It is useless by using metallurgy
Material ferrochrome slag is used to prepare Ceramic Tiles as raw material, while ferrochrome slag recycling approach is widened, considerably reduces
The usage amount of the preciousness first resource such as traditional ceramics process for producing bricks andesine and quartz, and the Ceramic Tiles physics and chemistry being prepared
GB/T4100-2015 standards can be met.
According to a particular embodiment of the invention, ferrochrome slag can be reduced directly through rotary hearth furnace using chromite, melt division technique
The solid waste of generation, including：The SiO of the CaO of 2~3 parts by weight, 25~30 parts by weight2, 25~30 parts by weight
The Al of MgO, 15~20 parts by weight2O3, 3~8 parts by weight Cr2O3, 0.3~0.5 parts by weight TiO2, 3~4 parts by weight TFe
With the alkali metal oxide of 0.2~0.4 parts by weight.Inventor has found, the Cr in ferrochrome slag2O3It can play the role of crystallization agent,
Be conducive to improve the intensity for the Ceramic Tiles being prepared, meanwhile, Cr elements can be fixed in Ceramic Tiles sintering process and be formed
Melt in, no exudation is environmentally friendly.
According to a particular embodiment of the invention, the mass ratio of ferrochrome slag, clay and sandstone can be (50~80):(20~
30):(0~20).Preferably, the mass ratio of ferrochrome slag, clay and sandstone can be (60~75):(20~30):(0~20).
Thus, the method for processing ferrochrome slag of the invention is high to the utilization rate of ferrochrome slag, can further improve the recycling of ferrochrome slag
Using level, and further improve the breakdown strength for the Ceramic Tiles being prepared.
A specific embodiment according to the present invention, mass percent shared by main component is SiO in clay260~
70%, Al2O310~25%.
A specific embodiment according to the present invention, main component and shared mass percent are SiO in sandstone285~
90%.
S200：Levigate processing
In the step, mixed material is subjected to levigate processing, to obtain granular material.Specifically, ball milling can be used
Machine carries out levigate processing to mixed material.
According to a particular embodiment of the invention, in granular material particle diameter not higher than 45 μm content of powder can be not less than
90%, it is preferably 90~96%.Thus, it is possible to the contact area between material each component is further improved, so as to improve preparation
The quality of obtained Ceramic Tiles.
S300：Mist projection granulating processing
In the step, granular material is subjected to mist projection granulating processing, to obtain granule materials.By first by mixed material
It is levigate, material specific surface area can be increased, contact area also increases between particle, and then the levigate granular material that obtains is sprayed
Mist is granulated, and is conducive to adhesion densification inside later stage forming process material, is not cracked.
According to a particular embodiment of the invention, the average grain diameter of granule materials can be 0.5~1mm, and moisture can be with
For 6~10wt%.According to a preferred embodiment of the invention, the average grain diameter of granule materials is 0.6~0.8mm, moisture 7
~8wt%.
S400：Forming processes
In the step, granule materials are subjected to forming processes, to obtain raw material plate.Specifically, required rule can be used
Granule materials are pressed the mould of lattice, obtain the raw material plate of certain specification size.
According to a particular embodiment of the invention, forming processes can be completed under the pressure of 15~40MPa, it is preferable that into
Type processing is completed under the pressure of 25~35MPa.Thus, it is possible to further improve the quality for the Ceramic Tiles being prepared.
S500：Drying process and burn till
In the step, raw material plate is dried to processing successively and is burnt till, to obtain Ceramic Tiles.Specifically, it can incite somebody to action
Raw material plate, which is placed in hothouse, is dried processing, and then the raw material plate Jing Guo drying process is burnt till, and obtains Ceramic Tiles
Product.
According to a particular embodiment of the invention, drying process can carry out 20~24h completions at 105~120 DEG C.By
This, can further reduce the water content in raw material plate, improve the follow-up effect for burning till processing.
According to a particular embodiment of the invention, 20~60min completions can be carried out at 1120~1180 DEG C by burning till, preferably
Ground, temperature are 1140~1160 DEG C.Thus, it is possible to further improve the quality for the Ceramic Tiles being prepared.
Thus, the method for processing ferrochrome slag according to embodiments of the present invention, by the way that ferrochrome slag, clay and sandstone are mixed
Close, and obtained mixed material is subjected to levigate processing, obtain granular material, and then granular material is carried out at mist projection granulating
Reason, obtains granule materials, after granule materials are molded, processing is dried successively to obtained raw material plate and burns till, you can system
It is standby to obtain ceramic brick product.This method substitutes the feldspar and quartz that Ceramic Tiles are used to prepare in traditional handicraft by using ferrochrome slag
Deng raw material, while ferrochrome slag recycling approach is widened, the valuable first resource such as feldspar and quartz is considerably reduced
Usage amount, and the Ceramic Tiles being prepared meet GB/T4100-2015 standards, and breakdown strength is higher than traditional ceramics brick.Thus,
This method can effectively utilize the Ceramic Tiles that metallurgical waste ferrochrome slag prepares high-quality, open ferrochrome slag recycling
New way, reduces the consumption of first resource, has significant economic benefit and environmental benefit.
In the second aspect of the present invention, the present invention proposes a kind of Ceramic Tiles.According to an embodiment of the invention, the Ceramic Tiles
It is to be prepared by using the method for the processing ferrochrome slag of above-described embodiment.
Ceramic Tiles according to embodiments of the present invention are by using metallurgical waste ferrochrome slag as raw material, considerably reducing tradition
The consumption of the first resources such as ceramic process for producing bricks andesine and quartz, while effectively widened ferrochrome slag recycling way
Footpath, and the Ceramic Tiles that should be prepared by ferrochrome slag meet GB/T4100-2015 standards, breakdown strength is higher than traditional ceramics brick.
The essential mineral composition of the Ceramic Tiles is cordierite, olivine and clinopyroxene, wherein heavy metal ion Cr3+It is consolidated in clinopyroxene
Interior, no exudation is environmentally safe.
According to a particular embodiment of the invention, above-mentioned Ceramic Tiles include：The SiO of 32~54wt%2, 13~16wt%
Al2O3, 13~24wt% MgO, the Cr of 4~8wt%2O3, 3~6wt% Fe2O3, 2.5~3.5wt% CaO, 0.3~
The TiO of 0.6wt%2With the alkali metal oxide of 0.5~1wt%.Traditional ceramics brick is by natural material component (such as feldspar, stone
English etc.) influence, MgO, Fe therein2O3Content is generally not more than 1%, SiO2、Al2O3The sum of content is generally not less than
90%, and the Ceramic Tiles of the application by using ferrochrome slag as raw material, breach the limitation of said components in traditional ceramics brick,
So that compared to traditional ceramics brick, the breakdown strength with higher.
Below with reference to specific embodiment, present invention is described, it is necessary to which explanation, these embodiments are only to describe
Property, without limiting the invention in any way.
Embodiment 1
According to the following steps, Ceramic Tiles are prepared using ferrochrome slag：
(1) by ferrochrome slag, clay and sandstone according to mass ratio 50:30:20 are mixed.
Mass percent shared by main component is CaO 3%, SiO in ferrochrome slag230%, MgO 25%, Al2O320%,
Cr2O38%, TiO20.3%, TFe 3%, (K2O+Na2O) 0.4%,
Mass percent shared by main component is SiO in clay270%, Al2O310%.
Mass percent shared by main component is SiO in sandstone290%.
(2) the levigate processing of ball mill progress is delivered into after above-mentioned material being crushed mixing, to obtain granular material, powder
Particle diameter is 90% for the powder quality percentage not higher than 45 μm in shape material.
(3) granular material after will be levigate carries out mist projection granulating, obtained granule materials particle diameter about 1mm.
(4) it is granule materials are compressing, form certain specification size raw material plate, briquetting pressure 40MPa.
(5) raw material plate is placed in drying process in hothouse, drying temperature is 120 DEG C, drying time 24h.
(6) dried raw material plate is burnt till, firing temperature is 1180 DEG C, firing time 20min.
The mass percent of main oxides is respectively in the Ceramic Tiles being fired into：SiO254%, Al2O316%,
MgO 24.6%, Cr2O34.44%, Fe2O33.86%, CaO 3.16%, TiO20.38%, (K2O+Na2O) 1%.
Ceramic Tiles physicochemical property after burning till meets GB/T4100-2015 requirements, modulus of rupture 67MPa, and water absorption rate is
0.23%.
Embodiment 2
According to the following steps, Ceramic Tiles are prepared using ferrochrome slag：
(1) by ferrochrome slag and clay according to mass ratio 80:20 are mixed.
Mass percent shared by main component is CaO 2%, SiO in ferrochrome slag225%, MgO 30%, Al2O315%,
Cr2O310%, TiO20.5%, TFe 4%, (K2O+Na2O) 0.2%,
Mass percent shared by main component is SiO in clay260%, Al2O320%.
(2) the levigate processing of ball mill progress is delivered into after above-mentioned material being crushed mixing, to obtain granular material, powder
Particle diameter is 96 for the powder quality percentage not higher than 45 μm in shape material.
(3) granular material after will be levigate carries out mist projection granulating, obtained granule materials particle diameter about 0.5mm.
(4) it is granule materials are compressing, form certain specification size raw material plate, briquetting pressure 15MPa.
(5) raw material plate is placed in drying process in hothouse, drying temperature is 105 DEG C, drying time 20h.
(6) dried raw material plate is burnt till, firing temperature is 1120 DEG C, firing time 60min.
The mass percent of main oxides is respectively in the Ceramic Tiles being fired into：SiO232%, Al2O316%,
MgO 24.6%, Cr2O38%, Fe2O35.54%, CaO 2.6%, TiO20.53%, (K2O+Na2O) 0.55%.
Ceramic Tiles physicochemical property after burning till meets GB/T4100-2015 requirements, modulus of rupture 48MPa, and water absorption rate is
0.44%.The Ceramic Tiles that the present embodiment is prepared are since, without sandstone is added, the modulus of rupture is slightly lower, but still conforms in raw material
GB/T4100-2015 requirements.
Embodiment 3
According to the following steps, Ceramic Tiles are prepared using ferrochrome slag：
(1) by ferrochrome slag, clay and sandstone according to mass ratio 65:25:10 are mixed.
Mass percent shared by main component is CaO 2.5%, SiO in ferrochrome slag228%, MgO 27%, Al2O3
18%, Cr2O39%, TiO20.4%, TFe 3.5%, (K2O+Na2O) 0.3%,
Mass percent shared by main component is SiO in clay265%, Al2O315%.
Mass percent shared by main component is SiO in sandstone288%.
(2) the levigate processing of ball mill progress is delivered into after above-mentioned material being crushed mixing, to obtain granular material, powder
Particle diameter is 94% for the powder quality percentage not higher than 45 μm in shape material.
(3) granular material after will be levigate carries out mist projection granulating, obtained granule materials particle diameter about 0.7mm.
(4) it is granule materials are compressing, form certain specification size raw material plate, briquetting pressure 30MPa.
(5) raw material plate is placed in drying process in hothouse, drying temperature is 110 DEG C, drying time 22h.
(6) dried raw material plate is burnt till, firing temperature is 1160 DEG C, firing time 40min.
The mass percent of main oxides is respectively in the Ceramic Tiles being fired into：SiO243.25%, Al2O3
15.8%, MgO 18.33%, Cr2O36.07%, Fe2O34.66%, CaO 2.95%, TiO20.44%, (K2O+Na2O)
0.8%.
Ceramic Tiles physicochemical property after burning till meets GB/T4100-2015 requirements, modulus of rupture 75MPa, and water absorption rate is
0.12%.
Comparative example 1
According to the following steps, Ceramic Tiles are prepared using ferrochrome slag：
(1) by ferrochrome slag, clay and sandstone according to mass ratio 65:25:10 are mixed.
Mass percent shared by main component is CaO 2.5%, SiO in ferrochrome slag228%, MgO 27%, Al2O3
18%, Cr2O39%, TiO20.4%, TFe 3.5%, (K2O+Na2O) 0.3%,
Mass percent shared by main component is SiO in clay265%, Al2O315%.
Mass percent shared by main component is SiO in sandstone288%.
(2) the levigate processing of ball mill progress is delivered into after above-mentioned material being crushed mixing, to obtain granular material, powder
Particle diameter is 94% for the powder quality percentage not higher than 45 μm in shape material.
(3) granular material after will be levigate carries out mist projection granulating, obtained granule materials particle diameter about 0.7mm.
(4) it is granule materials are compressing, form certain specification size raw material plate, briquetting pressure 30MPa.
(5) raw material plate is placed in drying process in hothouse, drying temperature is 110 DEG C, drying time 22h.
(6) dried raw material plate is burnt till, firing temperature is 1200 DEG C, firing time 40min.
The mass percent of main oxides is respectively in the Ceramic Tiles being fired into：SiO243.25%, Al2O3
15.8%, MgO 18.33%, Cr2O36.07%, Fe2O34.66%, CaO 2.95%, TiO20.44%, (K2O+Na2O)
0.8%.
Burn till that rear Ceramic Tiles size distortion is excessive, and melt surface is serious, physicochemical property does not meet GB/T4100-2015 will
Ask.
Comparative example 2
According to the following steps, Ceramic Tiles are prepared using ferrochrome slag：
(1) by ferrochrome slag, clay and sandstone according to mass ratio 65:25:10 are mixed.
Mass percent shared by main component is CaO 2.5%, SiO in ferrochrome slag228%, MgO 27%, Al2O3
18%, Cr2O39%, TiO20.4%, TFe 3.5%, (K2O+Na2O) 0.3%,
Mass percent shared by main component is SiO in clay265%, Al2O315%.
Mass percent shared by main component is SiO in sandstone288%.
(2) the levigate processing of ball mill progress is delivered into after above-mentioned material being crushed mixing, to obtain granular material, powder
Particle diameter is 94% for the powder quality percentage not higher than 45 μm in shape material.
(3) granular material after will be levigate carries out mist projection granulating, obtained granule materials particle diameter about 0.7mm.
(4) it is granule materials are compressing, form certain specification size raw material plate, briquetting pressure 30MPa.
(5) raw material plate is placed in drying process in hothouse, drying temperature is 110 DEG C, drying time 22h.
(6) dried raw material plate is burnt till, firing temperature is 1060 DEG C, firing time 40min.
The mass percent of main oxides is respectively in the Ceramic Tiles being fired into：SiO243.25%, Al2O3
15.8%, MgO 18.33%, Cr2O36.07%, Fe2O34.66%, CaO 2.95%, TiO20.44%, (K2O+Na2O)
0.8%.
Burn till rear Ceramic Tiles and deform smaller, modulus of rupture 12.3MPa, physicochemical property does not meet GB/T4100-2015 will
Ask.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area
Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature
Close and combine.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
- A kind of 1. method for handling ferrochrome slag, it is characterised in that including：(1) ferrochrome slag, clay and sandstone are mixed, to obtain mixed material；(2) mixed material is subjected to levigate processing, to obtain granular material；(3) granular material is subjected to mist projection granulating processing, to obtain granule materials；(4) granule materials are subjected to forming processes, to obtain raw material plate；And(5) the raw material plate is dried to processing successively and is burnt till, to obtain Ceramic Tiles.
- 2. according to the method described in claim 1, it is characterized in that, in step (1), the ferrochrome cinder ladle includes：2~3 parts by weight CaO, the SiO of 25~30 parts by weight2, 25~30 parts by weight MgO, the Al of 15~20 parts by weight2O3, 3~8 parts by weight Cr2O3, 0.3~0.5 parts by weight TiO2, the TFe of 3~4 parts by weight and the alkali metal oxide of 0.2~0.4 parts by weight.
- 3. according to the method described in claim 1, it is characterized in that, in step (1), the ferrochrome slag, the clay and described The mass ratio of sandstone is (50~80):(20~30):(0~20).
- 4. according to the method described in claim 1, it is characterized in that, in step (2), particle diameter is not higher than 45 in the granular material μm content of powder be not less than 90%.
- 5. according to the method described in claim 1, it is characterized in that, in step (3), the average grain diameter of the granule materials is 0.5~1mm, moisture are 6~10wt%.
- 6. according to the method described in claim 1, it is characterized in that, in step (4), the forming processes are in 15~40MPa Pressure under complete.
- 7. according to the method described in claim 1, it is characterized in that, in step (5), the drying process is at 105~120 DEG C What 20~24h of lower progress was completed.
- 8. according to the method described in claim 1, it is characterized in that, in step (5), described burn till is at 1120~1180 DEG C Carry out what 20~60min was completed.
- 9. a kind of Ceramic Tiles, it is characterised in that the Ceramic Tiles are prepared using claim 1~8 any one of them method Obtain.
- 10. Ceramic Tiles according to claim 9, it is characterised in that the Ceramic Tiles include：The SiO of 32~54wt%2、13 The Al of~16wt%2O3, 13~24wt% MgO, the Cr of 4~8wt%2O3, 3~6wt% Fe2O3, 2.5~3.5wt% The TiO of CaO, 0.3~0.6wt%2With the alkali metal oxide of 0.5~1wt%.
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| CN201711185624.5A CN107973586A (en) | 2017-11-23 | 2017-11-23 | Handle the method and Ceramic Tiles of ferrochrome slag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975877A (en) * | 2018-08-27 | 2018-12-11 | 西北农林科技大学 | The method of one heavy metal species slag manufacture building materials brick |
| CN114804846A (en) * | 2022-05-24 | 2022-07-29 | 景德镇陶瓷大学 | Method for preparing cordierite material by using ferrochrome waste residues and cordierite material |
-
2017
- 2017-11-23 CN CN201711185624.5A patent/CN107973586A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975877A (en) * | 2018-08-27 | 2018-12-11 | 西北农林科技大学 | The method of one heavy metal species slag manufacture building materials brick |
| CN114804846A (en) * | 2022-05-24 | 2022-07-29 | 景德镇陶瓷大学 | Method for preparing cordierite material by using ferrochrome waste residues and cordierite material |
| CN114804846B (en) * | 2022-05-24 | 2022-12-13 | 景德镇陶瓷大学 | Method for preparing cordierite material by using ferrochrome waste residues and cordierite material |
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