CN110511004A - A kind of zinc tailings processing extraordinary chrome corundum brick and preparation method thereof - Google Patents

A kind of zinc tailings processing extraordinary chrome corundum brick and preparation method thereof Download PDF

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Publication number
CN110511004A
CN110511004A CN201910833774.5A CN201910833774A CN110511004A CN 110511004 A CN110511004 A CN 110511004A CN 201910833774 A CN201910833774 A CN 201910833774A CN 110511004 A CN110511004 A CN 110511004A
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sand
electric smelting
dense alumina
smelting dense
diamond spar
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袁林
杜巍
李祥
李泉侑
李炜
周海军
王强
赵屹
宋瑞峰
孟凌霄
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ZHENGZHOU RUITAI REFRACTORY MATERIALS TECHNOLOGY Co Ltd
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ZHENGZHOU RUITAI REFRACTORY MATERIALS TECHNOLOGY Co Ltd
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Priority to CN201910833774.5A priority Critical patent/CN110511004A/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/105—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • 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
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • 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
    • C04B2235/34—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
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Abstract

The invention particularly discloses a kind of zinc tailings processing developments of extraordinary chrome corundum brick, are made of the electric smelting dense alumina sand of electric smelting dense alumina sand, granularity 3-1mm, the electric smelting dense alumina sand of granularity 1-0mm, granularity≤0.074mm electric smelting dense alumina sand, the plate diamond spar sand of granularity 3-1mm, the plate diamond spar sand of granularity 1-0mm, granularity≤0.045mm industrial oxidation chrome green, the additional extraordinary bonding agent by granularity 5-3mm.The present invention introduces titanium dioxide and additive lime in pink fused alumina, and the calcium titanate fusing point of generation is up to 1850 DEG C, has high temperature resistant, erosion-resistant performance；Add volcanic rock powder and aquamaine mountain flour, greatly improve the hardness of brick, industrial oxidation chrome green sufficiently and electric smelting dense alumina sand and the mixing of plate diamond spar sand can reach best particle size gradation, be conducive to improve semi-finished product it is dry after intensity, anti-pressure ability is strong；This zircon corundum brick cold crushing strength is 195MPa；Under 1100 DEG C, water cooling experimental condition, anti-thermal shock number be can achieve 25 times, and high temperature resistant, anticorrosive degree are high.

Description

A kind of zinc tailings processing extraordinary chrome corundum brick and preparation method thereof
Technical field
The present invention relates to technical field of refractory materials, and in particular to a kind of processing of zinc tailings extraordinary chrome corundum brick and its system Preparation Method.
Background technique
The development of nonferrous smelting science and technology is smelted new technology and is widely used, and the tailings glass of nonferrous smelting is gradually Increase, but the reinforcement with country to environment protection treating dynamics, high requirement is proposed to nonferrous smelting industry tailings glass, this Namely to the service performance of tailings glass refractory material, more stringent requirements are proposed.Traditional nonferrous smelting industry fire proofed wood Expect that some are not suitable for the processing of mine tailings.
And the prior art produces the Main Refractory of extraordinary chrome corundum brick, there is a problem of slag-resistant aggressivity deficiency, When in use, quickly by the speed of external environment erosion；And existing special-quality brick thermal shock resistance is poor, heat-resisting ability is not Foot；The integral hardness of finished product is insufficient, and anti-pressure ability is poor, and service life is limited.
Summary of the invention
For the technical problem for solving nonferrous smelting industry tailings glass refractory material service life, the purpose of the present invention exists In providing a kind of zinc tailings processing extraordinary chrome corundum brick and preparation method thereof.
To achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of extraordinary chrome corundum brick of zinc tailings processing, is made of aggregate and the additional bonding agent of powder；Wherein, by following heavy The raw material of amount percentage is made, and the sum of aggregate and powder are 100%, aggregate are as follows: electric smelting dense alumina sand 40~60%, plate are rigid Beautiful sand 10~35%, powder are as follows: electric smelting dense alumina powder 10~20%, industrial oxidation chrome green 10~20%, extraordinary bonding agent 2 ~4%, volcanic rock powder and aquamaine mountain flour 10%, titanium dioxide or high titanium slag 5%.
As a further solution of the present invention: the granularmetric composition of the electric smelting dense alumina sand are as follows: 5~3mm electric smelting is fine and close Emergy 5~15%, 3~1mm electric smelting dense alumina sand 10~20%, 1~0mm electric smelting dense alumina sand 20~30% ,≤ 0.074mm electric smelting dense alumina sand 10~20%, 3~1mm plate diamond spar sand 10~20%, 1~0mm plate diamond spar sand 5~ 15% ,≤0.045mm industrial oxidation chrome green 10~20%.
As further scheme of the invention: in terms of mass percentage: the electric smelting of three kinds of size specifications is fine and close The Al of emergy2O3>=99%, the Al of plate diamond spar sand2O3>=99%, industrial oxidation chrome green Cr2O3>=98%, titanium dioxide or height TiO2 mass percentage content >=90% in titanium slag, volcanic rock powder and aquamaine mountain flour use powdery original stone.
As further scheme of the invention: it is 1.3~1.5g/cm that the special type bonding agent, which is relative volume density,3 Phosphoric acid solution.
A kind of extraordinary chrome corundum brick preparation method of zinc tailings processing, comprising the following steps:
A, prepare electric smelting dense alumina sand, plate diamond spar sand, industrial oxidation chrome green by different grain size requirement, it is spare；
B, industrial phosphoric acid solution is prepared into relative volume density is 1.3~1.5g/cm3Phosphoric acid solution, it is spare；
C, take by weight percentage: electric smelting dense alumina sand 40~60%, plate diamond spar sand 10~35%, electric smelting are fine and close just Beautiful powder 10~20%, industrial oxidation chrome green 10~20%, extraordinary bonding agent 2~4%；The granularity group of the electric smelting dense alumina sand Become: 5~3mm electric smelting dense alumina sand 5~15%, 3~1mm electric smelting dense alumina sand 10~20%, 1~0mm electric smelting are fine and close Emergy 20~30% ,≤0.074mm electric smelting dense alumina sand 10~20%, 3~1mm plate diamond spar sand 10~20%, 1~ 0mm plate diamond spar sand 5~15% ,≤0.045mm industrial oxidation chrome green 10~20%；
D, take by weight percentage: volcanic rock powder and aquamaine mountain flour 10%, titanium dioxide or high titanium slag 5%, add account for it is mixed Close the bonding agent of material gross mass 1%~2%；
E, the various raw materials prepared are weighed into each raw material according to the ratio, through mixing, molding, drying, entrucking, into high temp tunnel Firing in 8 hours is kept the temperature under 1550-1650 DEG C of high temperature of kiln to get product.
Beneficial effect
The present invention introduces other solid phases i.e. titanium dioxide and additive lime in pink fused alumina, and titanium dioxide can promote sintering, Wherein the electric smelting dense alumina sand crystal grain physically well develops, and promotes product densification, and the calcium titanate fusing point of generation is up to 1850 DEG C, Product has high temperature resistant, erosion-resistant performance；Volcanic rock powder and aquamaine mountain flour are added, the hardness of brick, industrial oxidation are greatly improved Chrome green sufficiently and electric smelting dense alumina sand and the mixing of plate diamond spar sand can reach best particle size gradation, be conducive to improve half at Intensity after product are dry, anti-pressure ability are strong；With the zircon corundum brick that this ratio produces, cold crushing strength 195MPa；1100 DEG C, under water cooling experimental condition, anti-thermal shock number be can achieve 25 times, and high temperature resistant, anticorrosive degree are high.
Specific embodiment
The present invention is further explained in the light of specific embodiments, but the scope of protection of the present invention is not limited.
In following embodiment, raw material specification: the Al of the electric smelting dense alumina sand of three kinds of size specifications2O3>=99%, plate is rigid The Al of beautiful sand2O3>=99%, industrial oxidation chrome green Cr2O3>=98%, volcanic rock powder and aquamaine mountain flour use powdery original stone, titanium white TiO2 mass percentage content >=90% in powder or high titanium slag.The industrial phosphoric acid solution relative volume density be 1.3~ 1.5g/cm3。
Kyanite be formed at intermediate metamorphism pressure it is higher under the conditions of.Kyanite high temperature volumetric expansion, works as temperature When degree reduces, volume change very little is the volume expansion stability for having irreversibility conversion to generate: the fire resisting of kyanite production Stability of material is 1.5 times higher than fireclay refractory；General fireclay refractory refractoriness is 1670~1770 DEG C, and blue Spar refractory material is typically larger than 1790 DEG C, also has preferable resist chemical characteristic.Due to the characteristic of kyanite mineral, therefore For manufacturing excellent high grade refractory,
Float stone (volcanic rock) is that magma is internal due to strongly reducing for pressure after hurried cooling in volcanic eruption Gas escapes rapidly expansion and a kind of glassy lava for having porosity of formation.Its pore volume accounts for the 50% of rock volume More than.Because hole is more, light weight, can bubble through the water column due to referred to as float stone.Float stone is that acid volcanic rock hardness is 6, insulation Well；Chemical activity, strong adsorption have obvious hydraulic gelling property under the effect of hydraulicity exciting agent.
Embodiment 1
Material combination (in terms of mass percentage), the sum of aggregate and powder are 100%, and the percentage of bonding agent refers to combination Agent accounts for the percentage of the sum of aggregate and powder:
Aggregate: 5~3mm electric smelting dense alumina sand 5%, 3~1mm electric smelting dense alumina sand 15%, 1~0mm electric smelting are fine and close Emergy 15%, 3~1mm plate diamond spar sand 10%, 1~0mm plate diamond spar sand 15%.
Powder: granularity≤0.074mm electric smelting dense alumina sand 10%, granularity≤0.045mm industrial oxidation chrome green 20%, volcanic rock powder and aquamaine mountain flour 12%, titanium dioxide or high titanium slag 3%.
Bonding agent: industrial phosphoric acid solution 2%.
Preparation method: weighing the various raw materials prepared according to the ratio, through mixing, molding, drying, entrucking, into high temp tunnel Firing in 8 hours is kept the temperature under 1500 DEG C of high temperature of kiln to get product.
It examines and extraordinary chrome corundum brick is made, physical and chemical index is as shown in the table:
Embodiment 2:
Material combination (in terms of mass percentage), the sum of aggregate and powder are 100%, and the percentage of bonding agent refers to combination Agent accounts for the percentage of the sum of aggregate and powder:
Aggregate: 5~3mm electric smelting dense alumina sand 5%, 3~1mm electric smelting dense alumina sand 20%, 1~0mm electric smelting are fine and close Emergy 10%, 3~1mm plate diamond spar sand 10%, 1~0mm plate diamond spar sand 15%.
Powder: granularity≤0.074mm electric smelting dense alumina sand 20%, granularity≤0.045mm industrial oxidation chrome green 10%, volcanic rock powder and aquamaine mountain flour 8%, titanium dioxide or high titanium slag 7%.
Bonding agent: industrial phosphoric acid solution 2%.
Preparation method: weighing the various raw materials prepared according to the ratio, through mixing, molding, drying, entrucking, into high temp tunnel Firing in 8 hours is kept the temperature under 1500 DEG C of high temperature of kiln to get product.
It examines and extraordinary chrome corundum brick is made, physical and chemical index is as shown in the table:
Project Index Representative value
Apparent porosity % ≤15 12.8
Bulk density g/cm3 ≥3.40 3.4
Compressive resistance MPa ≥70 132
Refractoriness under load DEG C, T0.6 ≥1700 1700
1100 DEG C of thermal shock resistance, water cooling It does not require 2
Embodiment 3:
Material combination (in terms of mass percentage), the sum of aggregate and powder are 100%, and the percentage of bonding agent refers to combination Agent accounts for the percentage of the sum of aggregate and powder:
Aggregate: 5~3mm electric smelting dense alumina sand 10%, 3~1mm electric smelting dense alumina sand 10%, 1~0mm electric smelting are fine and close Emergy 10%, 3~1mm plate diamond spar sand 15%, 1~0mm plate diamond spar sand 10%.
Powder: granularity≤0.074mm electric smelting dense alumina sand 15%, granularity≤0.045mm industrial oxidation chrome green 15%, volcanic rock powder and aquamaine mountain flour 10%, titanium dioxide or high titanium slag 5%.
Bonding agent: industrial phosphoric acid solution 2%.
Preparation method: weighing the various raw materials prepared according to the ratio, through mixing, molding, drying, entrucking, into high temp tunnel Firing in 8 hours is kept the temperature under 1500 DEG C of high temperature of kiln to get product.
It examines and extraordinary chrome corundum brick is made, physical and chemical index is as shown in the table:
Project Index Representative value
Apparent porosity % ≤15 12.4
Bulk density g/cm3 ≥3.40 3.47
Compressive resistance MPa ≥70 156
Refractoriness under load DEG C, T0.6 ≥1700 1700
1100 DEG C of thermal shock resistance, water cooling It does not require 4
Performance test
Three examples of the brick are compared with theory calls, as a result as shown in the table:
Compared by three embodiments it is recognised that 3 index of embodiment is preferable, inventing each raw material being related to is commercially available original Material, using pink fused alumina, titanium dioxide or high titanium slag, lime, volcanic rock powder and aquamaine mountain flour as raw material, introduces other in pink fused alumina Solid phase, that is, titanium dioxide and additive lime, titanium dioxide can promote sintering, wherein the electric smelting dense alumina sand crystal grain physically well develops, Promote product densification, the calcium titanate fusing point of generation is up to 1850 DEG C, and product has high temperature resistant, erosion-resistant performance；Addition fire Mountain rock powder and aquamaine mountain flour, greatly improve the hardness of brick, and industrial oxidation chrome green being capable of abundant and electric smelting dense alumina sand and plate Emergy mixing, reaches best particle size gradation, is conducive to improve the intensity after semi-finished product drying, anti-pressure ability is strong；Industrial phosphoric acid Solution can be improved the plasticity and intensity of semi-finished product adobe as bonding agent.
With the zircon corundum brick that this ratio produces, cold crushing strength 195MPa；Under 1100 DEG C, water cooling experimental condition, Anti-thermal shock number can achieve 25 times, and high temperature resistant, anticorrosive degree are high.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of extraordinary chrome corundum brick of zinc tailings processing, it is characterised in that: be made of aggregate and the additional bonding agent of powder；Its In, it is made of the raw material of following weight percentage, the sum of aggregate and powder are 100%, aggregate are as follows: electric smelting dense alumina sand 40~ 60%, plate diamond spar sand 10~35%, powder are as follows: electric smelting dense alumina powder 10~20%, industrial oxidation chrome green 10~20%, spy Kind bonding agent 2~4%, volcanic rock powder and aquamaine mountain flour 10%, titanium dioxide or high titanium slag 5%；The electric smelting dense alumina sand Granularmetric composition are as follows: 5~3mm electric smelting dense alumina sand 5~15%, 3~1mm electric smelting dense alumina sand 10~20%, 1~0mm electricity Molten dense alumina sand 20~30% ,≤0.074mm electric smelting dense alumina sand 10~20%, 3~1mm plate diamond spar sand 10~ 20%, 1~0mm plate diamond spar sand 5~15% ,≤0.045mm industrial oxidation chrome green 10~20%.
2. a kind of extraordinary chrome corundum brick of zinc tailings processing as described in claim 1, it is characterised in that: the electric smelting is fine and close just The Al of beautiful sand2O3>=99%, the Al of plate diamond spar sand2O3>=99%, industrial oxidation chrome green Cr2O3>=98%, titanium dioxide or high titanium TiO2 mass percentage content >=90% in slag, volcanic rock powder and aquamaine mountain flour use powdery original stone.
3. a kind of extraordinary chrome corundum brick of zinc tailings processing as described in claim 1, it is characterised in that: the special type bonding agent It is 1.3~1.5g/cm for relative volume density3Phosphoric acid solution.
4. a kind of preparation method of the extraordinary chrome corundum brick of zinc tailings processing as described in claims 1 to 3 is any, feature exist In: the following steps are included:
A, prepare electric smelting dense alumina sand, plate diamond spar sand, industrial oxidation chrome green by different grain size requirement, it is spare；
B, industrial phosphoric acid solution is prepared into the phosphoric acid solution of concentration needed for processing, it is spare；
C, it takes by weight percentage: electric smelting dense alumina sand 40~60%, plate diamond spar sand 10~35%, electric smelting dense alumina powder 10~20%, industrial oxidation chrome green 10~20%, extraordinary bonding agent 2~4%；The granularmetric composition of the electric smelting dense alumina sand Are as follows: 5~3mm electric smelting dense alumina sand 5~15%, 3~1mm electric smelting dense alumina sand 10~20%, 1~0mm electric smelting are fine and close just Beautiful sand 20~30% ,≤0.074mm electric smelting dense alumina sand 10~20%, 3~1mm plate diamond spar sand 10~20%, 1~0mm Plate diamond spar sand 5~15% ,≤0.045mm industrial oxidation chrome green 10~20%；
D, take by weight percentage: volcanic rock powder and aquamaine mountain flour 10%, titanium dioxide or high titanium slag 5% add bonding agent；
E, the various raw materials prepared are weighed into each raw material according to the ratio, through mixing, molding, drying, entrucking, into hyperthermia tunnel Kiln Firing in 8 hours is kept the temperature under 1550-1650 DEG C of high temperature to get product.
5. a kind of preparation method of cement rotary kiln transition belt novel fire-resistant lining brick as claimed in claim 4, feature exist In in the step b), the relative volume density of the phosphoric acid solution is 1.3~1.5g/cm3。
6. a kind of preparation method of cement rotary kiln transition belt novel fire-resistant lining brick as claimed in claim 4, feature exist In in the step d), the quality of the bonding agent accounts for the 1%~2% of mixture total mass.
CN201910833774.5A 2019-09-04 2019-09-04 A kind of zinc tailings processing extraordinary chrome corundum brick and preparation method thereof Pending CN110511004A (en)

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CN116924781A (en) * 2023-08-14 2023-10-24 山东淄博沈淄耐火材料有限公司 High-temperature tin bath bottom brick for float glass production and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113354386A (en) * 2021-06-10 2021-09-07 安徽中材新材料科技有限公司 Preparation method of corundum sand ring for casting of electric smelting refractory material
CN116924781A (en) * 2023-08-14 2023-10-24 山东淄博沈淄耐火材料有限公司 High-temperature tin bath bottom brick for float glass production and preparation method thereof

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Application publication date: 20191129