CN109053146A - V-ti magnetite tailing prepares the method without glaze stair - Google Patents
V-ti magnetite tailing prepares the method without glaze stair Download PDFInfo
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- CN109053146A CN109053146A CN201811216084.7A CN201811216084A CN109053146A CN 109053146 A CN109053146 A CN 109053146A CN 201811216084 A CN201811216084 A CN 201811216084A CN 109053146 A CN109053146 A CN 109053146A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1328—Waste materials; Refuse; Residues without additional clay
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/0072—Heat treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
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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
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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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
- C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
- C04B2235/3267—MnO2
-
- 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
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/405—Iron group metals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention discloses a kind of v-ti magnetite tailings to prepare the method without glaze stair, first micronization processes obtain micron order activity v-ti magnetite tailing, it is mixed with correction material, oxidant, cosolvent, is formed, finally sintering, abrasion-resistant surface processing in pushed bat kiln, finally obtains no glaze stair brick.The present invention by addition correction material, oxidant, cosolvent and uses abrasion-resistant surface technique that can realize the preparation of no glaze stair, cost of material is greatly reduced, improves brick abrasion-resistant surface using vanadium titano-magnetite tailing as primary raw material.The compression strength of no glaze stair prepared by the present invention is more than or equal to 14100MPa, and surface hardness is more than or equal to 6800MPa, and porosity is less than or equal to 2.6%.
Description
Technical field
The present invention relates to green construction material preparation technical field, in particular to a kind of v-ti magnetite tailing preparation is without glaze building
The method of terraced brick.
Background technique
Vanadium titano-magnetite tailing is a kind of Industrial Solid Waste, is mainly used in cement, concrete, glass and road surface paving at this stage
If aspect, keep its added value of industry not high.Therefore, a kind of new way is developed, it is most important to improve its added value of industry.
Stair is a kind of huge construction material of demand, the high-quality feedstocks such as the china clay used always, kaolin at
This is higher, and surface glazing is needed to improve wearability, the needs for making it be difficult to meet environment, social development.
Summary of the invention
The present invention be directed to the research and development field status that common approach is difficult to improve v-ti magnetite tailing added value of industry problem,
A kind of method of the v-ti magnetite tailing preparation without glaze stair is provided.
To achieve the above objectives, the present invention, which adopts the following technical scheme that, is achieved:
A kind of method of the v-ti magnetite tailing preparation without glaze stair, comprising the following steps:
1) it by after the purified processing of v-ti magnetite tailing, then refines to obtain micron order activity v-ti magnetite tailing；
2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder and potassium carbonate powder are mixed, adds ball
Agent is placed in compression moulding in Belt-type tools；
3) cold moudling green body is fitted into pushed bat kiln and is sintered, then carried out abrasion-resistant surface processing, finally obtain no glaze building
Terraced brick.
As a further improvement of the present invention, in step 1), purified treatment includes washing, sieving, dry three steps.
As a further improvement of the present invention, it in step 1), is refined using linkage powder activation device, refines medium
For zirconium dioxide prism, link 400~600 turns/min of the powder activation device speed of mainshaft, refines the time 6~9 hours.
As a further improvement of the present invention, in step 2), active v-ti magnetite tailing, alumina powder, manganese dioxide powder,
The weight percent of iron powder, potassium carbonate powder are as follows: (64~69.1): (9.1~14.2): (9.5~14.6): (10.2~14.3):
(2.1~4.7).
As a further improvement of the present invention, in step 2), incorporation time 1.5~3.1 hours, nodularization was added in mixed process
Agent, nodulizer are the polyvinyl alcohol water solution that mass concentration is 10%, and briquetting pressure is 58~99MPa.
As a further improvement of the present invention, in step 3), sintering process includes preheating, sintering, cooling three steps, respectively when step
Between be respectively 3 hours, 5 hours and 7 hours, maximum sintering temperature be 1100~1370 DEG C.
As a further improvement of the present invention, in step 3), abrasion-resistant surface processing uses surface high energy heat treatment technics: adding
Hot 70~90 DEG C/min of rate, 760~830 DEG C of stable pulse temperature range.
As a further improvement of the present invention, the compression strength without glaze stair of preparation is more than or equal to 14100MPa, table
Surface hardness is more than or equal to 6800MPa, and porosity is less than or equal to 2.6%.
Compared with prior art, the invention has the characteristics that and advantage:
Elder generation's micronization processes of the present invention obtain micron order activity v-ti magnetite tailing, by itself and correction material, oxidant, hydrotropy
Agent mixing, molding, finally sintering, abrasion-resistant surface processing in pushed bat kiln；Wherein powder surface-active can be improved in micronization processes, drop
Low melting point.V-ti magnetite tailing after refinement can come into full contact with material etc. is corrected, and accelerate diffusion, improve the practical utilization of tailing
Rate；Brick surface competency and wear resistence can be improved in abrasion-resistant surface processing, is better than glaze layer instead of glaze layer and in terms of coefficient of friction.With
Vanadium titano-magnetite tailing is primary raw material, by addition correction material, oxidant, cosolvent and uses abrasion-resistant surface technique can be real
Cost of material is greatly reduced in preparation now without glaze stair, improves brick abrasion-resistant surface.No glaze stair prepared by the present invention
Compression strength is more than or equal to 14100MPa, and surface hardness is more than or equal to 6800MPa, and porosity is less than or equal to 2.6%.
Further, in preparation without in glaze stair materials process, the present invention is difficult to solve industrial attached for the existing method of solution
Value added low problem, but use big specific gravity v-ti magnetite tailing, thinning method, research process for refining, raw material components mass ratio,
The relationship of mixing, molding, sintering and abrasion-resistant surface treatment process parameter and no glaze stair performance, it may be assumed that for no glaze stair,
Keep higher competency can be with best process for refining, raw material components mass ratio, mixing, molding, sintering and the surface of surface hardness
Wear-resistant treatment process parameter.The method has Composition Control precision height, and technology stability and repeatability are relatively strong, it can be achieved that vanadium titanium magnetic
The higher added value of industry of iron tailings.
Specific embodiment
A kind of method that v-ti magnetite tailing prepares crystallite foam glass of the present invention, includes the following steps:
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 400~600 turns/min of the speed of mainshaft is refined the time 6~9 hours, obtains micron order activity
V-ti magnetite tailing；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into (64~69.1):
(9.1~14.2): (9.5~14.6): (10.2~14.3): (2.1~4.7) ratio mixes 1.5~3.1 hours, adds matter
The polyvinyl alcohol water solution nodulizer that amount concentration is 10% is placed in compression moulding in Belt-type tools, and briquetting pressure is 58~99MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1100~1370 DEG C；Finally carried out at abrasion-resistant surface using surface high energy heat treatment technics
Reason, 70~90 DEG C/min of the rate of heat addition, 760~830 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair material
Material.
The intensity without glaze stair and hardness of following embodiment preparation are as shown in table 1.
Embodiment 1
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 480 turns/min of the speed of mainshaft refines the time 8 hours, obtains micron order activity v-ti magnetite
Tailing；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 67:10.7:9.5:
10.2:2.6 ratio mixes 2.1 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in high pressing mold
Compression moulding in tool, briquetting pressure 87MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1170 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
80 DEG C/min of rate, 790 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Embodiment 2
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 400 turns/min of the speed of mainshaft refines the time 9 hours, obtains micron order activity v-ti magnetite
Tailing；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 64:11.7:
10.5:11.2:2.6 ratio mixes 3.1 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in height
Compression moulding in compression mould, briquetting pressure 58MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1270 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
70 DEG C/min of rate, 830 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Embodiment 3
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 500 turns/min of the speed of mainshaft refines the time 8 hours, obtains micron order activity v-ti magnetite
Tailing；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 65:9.9:10.7:
12.3:2.1 ratio mixes 2.8 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in high pressing mold
Compression moulding in tool, briquetting pressure 88MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1250 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
70 DEG C/min of rate, 770 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Embodiment 4
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 490 turns/min of the speed of mainshaft refines the time 6.5 hours, obtains micron order activity vanadium titanium magnetic
Iron tailings；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 64:9.1:11.1:
13.3:2.5 ratio mixes 1.9 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in high pressing mold
Compression moulding in tool, briquetting pressure 94MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1220 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
75 DEG C/min of rate, 780 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Performance parameter of the Examples 1 to 4 preparation without glaze stair brick is shown in Table 1:
Table 1
From upper table, it can be concluded that, the compression strength of no glaze stair prepared by the present invention is more than or equal to 14100MPa, surface
Hardness is more than or equal to 6800MPa, and porosity is less than or equal to 2.6%.
Embodiment 5
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 500 turns/min of the speed of mainshaft refines the time 9 hours, obtains micron order activity v-ti magnetite
Tailing；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 66:9.1:9.5:
10.7:4.7 ratio mixes 1.9 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in high pressing mold
Compression moulding in tool, briquetting pressure 76MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1310 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
75 DEG C/min of rate, 810 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Embodiment 6
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 550 turns/min of the speed of mainshaft refines the time 7.5 hours, obtains micron order activity vanadium titanium magnetic
Iron tailings；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 69:9.2:9.5:
10.2:2.1 ratio mixes 2.1 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in high pressing mold
Compression moulding in tool, briquetting pressure 77MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1370 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
90 DEG C/min of rate, 830 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Embodiment 7
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 570 turns/min of the speed of mainshaft refines the time 8.5 hours, obtains micron order activity vanadium titanium magnetic
Iron tailings；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 68:9.1:10.3:
10.2:2.4 ratio mixes 2.0 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in high pressing mold
Compression moulding in tool, briquetting pressure 66MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1360 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
86 DEG C/min of rate, 790 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Embodiment 8
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 560 turns/min of the speed of mainshaft refines the time 9 hours, obtains micron order activity v-ti magnetite
Tailing；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 64:14.2:9.5:
10.2:2.1 ratio mixes 1.6 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in high pressing mold
Compression moulding in tool, briquetting pressure 59MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1170 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
70 DEG C/min of rate, 830 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Embodiment 9
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 400 turns/min of the speed of mainshaft refines the time 9 hours, obtains micron order activity v-ti magnetite
Tailing；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 69.1:9.1:
9.5:10.2:2.1 ratio mixes 2.0 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in height
Compression moulding in compression mould, briquetting pressure 58MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1100 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
90 DEG C/min of rate, 760 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Embodiment 10
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 600 turns/min of the speed of mainshaft refines the time 9 hours, obtains micron order activity v-ti magnetite
Tailing；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 64:14.2:9.5:
10.2:2.1 ratio mixes 1.6 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in high pressing mold
Compression moulding in tool, briquetting pressure 99MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1370 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
70 DEG C/min of rate, 820 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
Embodiment 11
(1) it by v-ti magnetite tailing after washing, sieving, drying process, is placed in linkage powder activation device and refines, carefully
Change medium is zirconium dioxide prism, and 500 turns/min of the speed of mainshaft refines the time 9 hours, obtains micron order activity v-ti magnetite
Tailing；
(2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder are pressed into 64:9.1:14.6:
10.2:2.1 ratio mixes 1.9 hours, adds the polyvinyl alcohol water solution nodulizer that mass concentration is 10% and is placed in high pressing mold
Compression moulding in tool, briquetting pressure 76MPa；
(3) cold moudling green body is fitted into pushed bat kiln and preheats, is sintered, is cooling, each step time is respectively 3 hours, 5 hours
With 7 hours, maximum sintering temperature be 1310 DEG C；Abrasion-resistant surface processing, heating are finally carried out using surface high energy heat treatment technics
75 DEG C/min of rate, 810 DEG C of stable pulse temperature range, furnace is cold, finally obtains no glaze stair brick.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of v-ti magnetite tailing prepares the method without glaze stair, which comprises the following steps:
1) it by after the purified processing of v-ti magnetite tailing, then refines to obtain micron order activity v-ti magnetite tailing；
2) active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder and potassium carbonate powder are mixed, adds nodulizer
It is placed in compression moulding in Belt-type tools；
3) cold moudling green body is fitted into pushed bat kiln and is sintered, then carried out abrasion-resistant surface processing, finally obtain no glaze stair
Material.
2. v-ti magnetite tailing as described in claim 1 prepares the method without glaze stair, which is characterized in that in step 1),
Purified treatment includes washing, sieving, dry three steps.
3. v-ti magnetite tailing as described in claim 1 prepares the method without glaze stair, which is characterized in that in step 1),
It is refined using linkage powder activation device, refinement medium is zirconium dioxide prism, and linkage powder activation device main shaft turns
400~600 turns/min of speed is refined the time 6~9 hours.
4. v-ti magnetite tailing as described in claim 1 prepares the method without glaze stair, which is characterized in that in step 2),
Active v-ti magnetite tailing, alumina powder, manganese dioxide powder, iron powder, potassium carbonate powder weight percent are as follows: (64~69.1):
(9.1~14.2): (9.5~14.6): (10.2~14.3): (2.1~4.7).
5. v-ti magnetite tailing as described in claim 1 prepares the method without glaze stair, which is characterized in that in step 2),
Incorporation time 1.5~3.1 hours, nodulizer was added in mixed process, and nodulizer is that the polyvinyl alcohol that mass concentration is 10% is water-soluble
Liquid, briquetting pressure are 58~99MPa.
6. v-ti magnetite tailing as described in claim 1 prepares the method without glaze stair, which is characterized in that in step 3), burn
Knot process includes preheating, sintering, cooling three steps, and respectively walking the time is respectively 3 hours, 5 hours and 7 hours, and maximum sintering temperature is
1100~1370 DEG C.
7. v-ti magnetite tailing as described in claim 1 prepares the method without glaze stair, which is characterized in that in step 3), table
The wear-resistant processing in face is using surface high energy heat treatment technics: 70~90 DEG C/min of the rate of heat addition, and stable pulse temperature range 760~
830℃。
8. v-ti magnetite tailing prepares the method without glaze stair as described in claim 1 to 7 any one, which is characterized in that
The compression strength without glaze stair of preparation is more than or equal to 14100MPa, and surface hardness is more than or equal to 6800MPa, and porosity is less than
Equal to 2.6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109680175A (en) * | 2019-02-27 | 2019-04-26 | 陕西理工大学 | The method that v-ti magnetite tailing prepares cermet material |
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