CN109279869A - A kind of preparation method of aluminium oxide wearable ceramic ball - Google Patents
A kind of preparation method of aluminium oxide wearable ceramic ball Download PDFInfo
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- CN109279869A CN109279869A CN201811007187.2A CN201811007187A CN109279869A CN 109279869 A CN109279869 A CN 109279869A CN 201811007187 A CN201811007187 A CN 201811007187A CN 109279869 A CN109279869 A CN 109279869A
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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
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
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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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
- C04B2235/321—Dolomites, i.e. mixed calcium magnesium carbonates
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Abstract
The invention discloses a kind of preparation methods of aluminium oxide wearable ceramic ball, comprising: raw material needed for weighing manufacture aluminium oxide wearable ceramic ball；The raw material is put into ball milling in ball mill to grind, obtains slurry, the mobility of the slurry was controlled at 20-40 seconds；The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, obtain the powder for manufacturing aluminium oxide wearable ceramic ball, wherein, the particle size range of powder is that the mesh of D < 40 is less than 2%, the mesh of 40 Mu≤D≤60 is 35-50%, 60 mesh < D≤80 mesh are 25-40%, and 100 mesh < D is less than 15%；Powder is put into nodulizer and is rolled onto porcelain ball；Porcelain ball is placed in kiln and is fired, firing temperature is 1200-1500 DEG C, obtains aluminium oxide wearable ceramic ball.By controlling the particle size content of powder, so that product surface is smooth, good sphericity, dimensional accuracy is high, and difference is minimum between ball and ball.
Description
Technical field
The present invention relates to Ceramic Balls technical field more particularly to a kind of preparation methods of aluminium oxide wearable ceramic ball.
Background technique
Aluminium oxide wearable ceramic ball is widely used in the industries such as ceramics, glass, enamel, pigment, chemical industry, is that all kinds of grinding machines are thin
Grinding sphere in broken equipment, intensity is high, and density is big, wears away small, corrosion-resistant, strong applicability, and crush efficiency is high.
The preparation method of aluminium oxide wearable ceramic ball includes two kinds at present:
One, using alumina powder as primary raw material, and it is calcined.The aluminium oxide produced by calcined oxide aluminium powder
Wearable ceramic ball appearance white, product quality is preferable, and adaptability is preferable, and wearability is good, less or will not pollute the production being ground
Product, are mainly used for grinding that the needs such as ceramic glaze are efficient and clean wear-resistant material, but, high production cost big to resource consumption.
Two, using bauxite as primary raw material, and it is calcined.Aluminium oxide by calcining bauxite production is wear-resisting
Ceramic Balls appearance yellow, product quality is relatively slightly worse, and adaptability is poor, and wearability is general, is appropriate only for product appearance quality
It is required that lower grinding occasion, while its resource consumption is big, since bauxite is non-renewable natural resources, impurity itself contains
Amount is high, and appearance color is poor.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of preparation method of aluminium oxide wearable ceramic ball, pass through
The particle size content of powder is controlled, so that product surface is smooth, good sphericity, dimensional accuracy is high, and difference is minimum between ball and ball, and
And prepare that resulting Ceramic Balls are at low cost, and appearance white, adaptability is preferable as primary raw material using ceramic rod waste material, it is resistance to
Mill property is good.
In order to solve the above-mentioned technical problems, the present invention provides a kind of preparation methods of aluminium oxide wearable ceramic ball, comprising:
Raw material needed for weighing manufacture aluminium oxide wearable ceramic ball；
The raw material is put into ball milling in ball mill and carries out 40~60h of grinding, obtaining grind size is D50≤5 μm, moisture
Content is the slurry of 25-40%, and the mobility of the slurry was controlled at 20-40 seconds；
The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；
Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is obtained for manufacturing oxygen
Change the powder of aluminium wearable ceramic ball, wherein the particle size range of powder is that the mesh of D < 40 is less than 2%, and the mesh of 40 Mu≤D≤60 is 35-
50%, 60 mesh < D≤80 mesh are 25-40%, and 100 mesh < D is less than 15%；
Powder is put into nodulizer and is rolled onto porcelain ball；
Porcelain ball is placed in kiln and is fired, firing temperature is 1200-1500 DEG C, obtains aluminium oxide wear-resistant ceramic
Ball.
As an improvement of the above scheme, the raw material includes:
Ceramic rod waste material；
Zirconium source；
Alumina powder；
Dolomite；
Bentonite.
As an improvement of the above scheme, the zirconium source is zircon corundum brick waste material or useless zirconium powder.
As an improvement of the above scheme, the ceramic rod waste material includes following components:
Aluminium oxide 60-80%；
Silica 15-25%；
Zirconium oxide 2-6%；
Iron oxide 0.2-0.8%；
Calcium oxide 0.01-0.1%；
Magnesia 0.01-0.1%；
Sodium oxide molybdena 0.1-0.9%；
Potassium oxide 0.1-0.5%；
Surplus is impurity.
As an improvement of the above scheme, it is 5-7% that the water content of the powder, which is range,.
As an improvement of the above scheme, Han Tie Liang≤1% of the mud by preliminary treatment.
As an improvement of the above scheme, porcelain ball is before entering kiln kiln roasting, and water point is containing amount≤1%.
As an improvement of the above scheme, firing soaking time of the porcelain ball in kiln is 1~8 hour.
The invention has the following beneficial effects:
1, the present invention uses powder by spraying processing technology, mud is made to the powder of different-grain diameter, such powder is rolling
When porcelain ball is made, the bulk density of powder is higher, it is easier to be uniformly mixed with other raw materials, resulting product is smooth, sphericity
Good, dimensional accuracy is high, and difference is minimum between ball and ball, and inherent quality is also guaranteed.
2, the present invention uses ceramic rod waste material and zircon corundum brick waste material as primary raw material, and small amounts aluminium powder is added
And industrial chemicals, waste material is not only subjected to resource utilization, also reduces the cost of Ceramic Balls.
3, in addition, the oxidation that the present invention uses ceramic rod waste material and zircon corundum brick waste material to generate as primary raw material
The abrasion of aluminium wearable ceramic ball are low, and whiteness is high, applied widely, cannot be only used for grinding high-end product, are also applied for grinding low
The product at end.Aluminium oxide wearable ceramic ball of the invention, cost are also lower than porcelain ball made of bauxite, due to ceramic rod waste material
Lower than bauxite with the price of zircon corundum brick waste material, therefore, aluminium oxide wearable ceramic ball of the invention is alternative by bauxite system
At porcelain ball, for grinding low-end product.
Detailed description of the invention
Fig. 1 is a kind of production flow diagram of aluminium oxide wearable ceramic ball of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
Fig. 1 is preparation method flow chart of the invention, a kind of preparation side of aluminium oxide wearable ceramic ball provided by the invention
Method, comprising:
S101: raw material needed for weighing manufacture aluminium oxide wearable ceramic ball.
The formula of primary raw material needed for the manufacture aluminium oxide wearable ceramic ball is as follows:
Ceramic rod waste material；
Zirconium source；
Alumina powder；
Dolomite；
Bentonite.
Wherein, the zirconium source is zircon corundum brick waste material or useless zirconium powder.
There are two types of the formulas of primary raw material needed for the present invention manufactures aluminium oxide wearable ceramic ball, one of composition of raw materials master
It to be made of following raw material by weight percentage；
Ceramic rod waste material 70-90%；
Zircon corundum brick waste material 5-15%；
Alumina powder 1-10%；
Dolomite 2-8%；
Bentonite 1-4%.
This formula using ceramic rod waste material and zircon corundum brick waste material as primary raw material, and be added small amounts aluminium powder with
Waste material is not only carried out resource utilization, also reduces the cost of Ceramic Balls by industrial chemicals.
In addition, the aluminium oxide that the present invention uses ceramic rod waste material and zircon corundum brick waste material to generate as primary raw material
Wearable ceramic ball abrasion are low, and whiteness is high, applied widely, cannot be only used for grinding high-end product, are also applied for grinding low side
Product.Aluminium oxide wearable ceramic ball of the invention, cost are also lower than porcelain ball made of bauxite, due to ceramic rod waste material and
The price of zircon corundum brick waste material is lower than bauxite, and therefore, aluminium oxide wearable ceramic ball of the invention is alternative to be made of bauxite
Porcelain ball, for grinding low-end product.
Containing aluminium oxide and silica and partial oxidation zirconium in ceramic rod waste material, can be for being fabricated to principal crystalline phase
The high abrasion porcelain ball of mullite phase and zirconium oxide crystal phase.
The lithofacies structure of zircon corundum brick is corundum from mutually learning by the eutectoid and glass phase composition of corundum and the oblique stone of zirconium
Mutually it is filled between their crystallization with the eutectoid of the oblique stone phase of zirconium, glass phase.Oxygen of the present invention can be improved in zircon corundum brick waste material
The content for changing the zirconium of aluminium wearable ceramic ball, using the toughening performance of zirconium oxide, thus the intensity of extracting aluminum oxide wearable ceramic ball and
Wearability.Therefore, the alternative porcelain ball made of alumina powder of aluminium oxide wearable ceramic ball of the invention, for grinding high-end production
Product, but cost ratio porcelain ball made of alumina powder is low.
Preferably, aluminium oxide wearable ceramic ball of the invention, raw material include: ceramic rod waste material 78-82%；Fused alumina zirconia
Brick waste material 7-10%；Alumina powder 3-5%；Dolomite 3.5-5%；Bentonite 1-2%.
Wherein, the ceramic rod waste material is composed of the following components: aluminium oxide 60-80%；Silica 15-25%；Oxidation
Zirconium 2-6%；Iron oxide 0.2-0.8%；Calcium oxide 0.01-0.1%；Magnesia 0.01-0.1%；Sodium oxide molybdena 0.1-0.9%；Oxygen
Change potassium 0.1-0.5%；Surplus is impurity.
Preferably, the ceramic rod waste material is composed of the following components: aluminium oxide 65-75%；Silica 17-22%；Oxygen
Change zirconium 2-5%；Iron oxide 0.3-0.6%；Calcium oxide 0.03-0.08%；Magnesia 0.03-0.08%；Sodium oxide molybdena 0.3-
0.7%；Potassium oxide 0.2-0.4%；Surplus is impurity.
More preferably, the ceramic rod waste material is composed of the following components: aluminium oxide 74.8%；Silica 19.4%；Oxidation
Zirconium 4.2%；Iron oxide 0.43%；Calcium oxide 0.05%；Magnesia 0.05%；Sodium oxide molybdena 0.51%；Potassium oxide 0.26%；Surplus
For impurity.
The zircon corundum brick waste material is composed of the following components: aluminium oxide 40-60%；Silica 10-20%；Zirconium oxide 20-
40%；Iron oxide 0.1-0.8%；Calcium oxide 0.1-0.8%；Magnesia 0.07-0.2%；Sodium oxide molybdena 0.7-2；Potassium oxide 0.07-
0.2%；Surplus is impurity.
Preferably, the zircon corundum brick waste material is composed of the following components: aluminium oxide 45-55%；Silica 13-18%；Oxygen
Change zirconium 25-35%；Iron oxide 0.2-0.5%；Calcium oxide 0.1-0.5%；Magnesia 0.1-0.15%；Sodium oxide molybdena 1-1.5；Oxidation
Potassium 0.1-0.18%；Surplus is impurity.
More preferably, the zircon corundum brick waste material is composed of the following components: aluminium oxide 49.09%；Silica 16.47%；Oxygen
Change zirconium 30.89%；Iron oxide 0.32%；Calcium oxide 0.29%；Magnesia 0.12%；Sodium oxide molybdena 1.24%；Potassium oxide 0.16%；
Surplus is impurity.
It should be noted that the aluminium oxide wearable ceramic ball made of above-mentioned raw materials, composed of the following components:
Aluminium oxide 65-80%；
Silica 10-20%；
Zirconium oxide 3-10%；
Iron oxide 0.1-1%；
Alkali metal 0.7-2%；
Alkaline-earth metal 1.8-3.4%；
Titanium oxide 0.1-0.5%.
It should be noted that ceramic rod waste material, zircon corundum brick waste material, alumina powder, dolomite and bentonite are as oxygen
Change the raw material of aluminium wearable ceramic ball, various raw materials are reacted, wherein aluminium oxide, silica, zirconium oxide can be used to make
It is the high abrasion porcelain ball of mullite phase and zirconium oxide crystal phase at principal crystalline phase.And titanium oxide can stablize aluminium oxide wearable ceramic ball
Lattice phase, alkali and alkaline earth metal ions can increase the wearability of Ceramic Balls.
Another composition of raw materials is mainly made of following raw material by weight percentage；
Ceramic rod waste material 40-60%；
Alumina powder 30-50%；
Useless zirconium powder 2-10%；
Barium carbonate 2-6%；
Dolomite 0.1-2%；
Bentonite 1-4%.
A certain amount of alumina powder and useless zirconium powder is added as primary raw material using ceramic rod waste material in the present invention, and adopts
It uses barium carbonate as main flux, so that aluminium oxide wearable ceramic ball has high intensity, high abrasion degree and toughness, is suitable for dry grinding
Waste material is not only carried out resource utilization, also reduces the cost of Ceramic Balls by the environment of high impact forces and high temperature.
In addition, the aluminium oxide wearable ceramic ball abrasion that the present invention is generated using ceramic rod waste material as primary raw material
Low, whiteness is high, applied widely, cannot be only used for grinding high-end product, is also applied for the product of grinding low side.
Since the corundum phase in roller rod waste material mutually has the characteristics of high intensity, high abrasion with zirconium oxide, aoxidized by addition
Aluminium powder, zirconium oxide waste material, selected flux raw material produce the aluminium oxide wearable ceramic ball of high quality.Aluminium oxide of the invention is resistance to
Ceramic Balls specific gravity with higher and very high intensity are ground, especially suitable for the dry grinding such as cement fine grinding field.
The content of the zirconium of aluminium oxide wearable ceramic ball of the present invention can be improved in zirconium oxide waste material, utilizes the increasing tougheness of zirconium oxide
Can, thus the intensity and wearability of extracting aluminum oxide wearable ceramic ball.Therefore, aluminium oxide wearable ceramic ball of the invention it is alternative by
Porcelain ball made of alumina powder, for grinding high-end product, but cost ratio porcelain ball made of alumina powder is low.
Preferably, aluminium oxide wearable ceramic ball of the invention is mainly made of following raw material by weight percentage:
Ceramic rod waste material 45-55%, alumina powder 35-45%, useless zirconium powder 3-6%, barium carbonate 3-5%, dolomite 0.5-1.5% and
Bentonite 1-2%.
Wherein, the ceramic rod waste material includes following components: aluminium oxide 60-80%, silica 15-25%, zirconium oxide
2-6%, iron oxide 0.2-0.8%, calcium oxide 0.01-0.1%, magnesia 0.01-0.1%, sodium oxide molybdena 0.1-0.9% and oxidation
Potassium 0.1-0.5%, surplus are impurity.
Ceramic rod waste material refers to the clout of production ceramic rod raw material, in general, the primary raw material packet of production ceramic rod
Include kaolin, fire clay, fire resisting corundum aggregate and α-Al2O3Deng.Ceramic rod raw material of the invention is applied to roller for making
The ceramic rod of road kiln, plays the role of transmission and load-bearing.Therefore, of the invention compared with existing wear-resistant ceramic raw material
Containing the component for being improved roller stick abrasion resistance and hardness, such as zirconium oxide in ceramic rod waste material.In addition, ceramic rod waste material of the present invention
Essential mineral composition be corundum phase and zirconium oxide phase, belong to high-intensitive, high rigidity crystal phase, be advanced wear-resisting material
Material, it is less containing the non-abrasive impurity raw material such as glass phase in ceramic rod waste material, other existing ceramic rod waste materials due at
The content of this reason, alumina powder and zirconium oxide is seldom, it is difficult to be used to prepare wearable ceramic ball.Secondly, ceramic roller of the invention
The aluminium oxide for being suitable for making aluminium oxide wearable ceramic ball in bar waste material containing 60-80%, and ceramic rod of the invention is useless
The component proportion of material is being calculated by science, is applicable not only to production ceramic rod and is also applied for making through overtesting
Aluminium oxide wearable ceramic ball.Existing ceramic rod raw material, calcination temperature want 1550 DEG C or more, are otherwise difficult to be sintered.And this
The calcination temperature of the aluminium oxide wearable ceramic ball of invention only has 1300-1500 DEG C.
Preferably, the ceramic rod waste material includes following components: aluminium oxide 65-75%, silica 17-22%, oxidation
Zirconium 2-5%, iron oxide 0.3-0.6%, calcium oxide 0.03-0.08%, magnesia 0.03-0.08%, sodium oxide molybdena 0.3-0.7% and
Potassium oxide 0.2-0.4%, surplus are impurity.
More preferably, the ceramic rod waste material includes following components: aluminium oxide 74.8%, silica 19.4%, zirconium oxide
4.2%, iron oxide 0.43%, calcium oxide 0.05%, magnesia 0.05%, sodium oxide molybdena 0.51% and potassium oxide 0.26%, surplus
For impurity.
The useless zirconium powder includes following components: aluminium oxide 0.1-1%, silica 0.1-0.5%, zirconium oxide 60-85%, oxygen
Change iron 0.03-0.15%, calcium oxide 1-5%, magnesia 0.1-0.8%, sodium oxide molybdena 0.01-0.05%, potassium oxide 0.01-
0.05%, yttrium oxide 10-22% and titanium oxide 0.1-1%, surplus are impurity.
Useless zirconium powder is added in the present invention in ceramic rod waste material, improves the content of zirconium in formula, because of the main of zirconium powder that give up
Composition is yttrium oxide and zirconium oxide, and the specific gravity of aluminium oxide ceramic ball, intensity and wear-resisting are improved using the toughening performance of zirconium oxide
Property.
Calcining α is added mainly using the leftover bits in several industrial productions as main raw material(s) in the present invention
Alumina powder plays the strong point of respective raw material itself, and it is good to produce wear-resisting property, and intensity is high, and adaptation range is wide, contains certain oxygen
Change the high abrasion aluminium oxide ceramic ball of zirconium composition.
Preferably, the useless zirconium powder includes following components: aluminium oxide 0.3-0.5%, silica 0.1-0.3%, zirconium oxide
66-80%, iron oxide 0.06-0.12%, calcium oxide 1.5-4%, magnesia 0.2-0.6%, sodium oxide molybdena 0.01-0.04%, oxygen
Changing potassium 0.01-0.04%, yttrium oxide 13-20% and titanium oxide 0.2-0.7%, surplus is impurity.
More preferably, the useless zirconium powder includes following components: aluminium oxide 0.52%, silica 0.2%, zirconium oxide 71%, oxygen
Change iron 0.09%, calcium oxide 2.37%, magnesia 0.37%, sodium oxide molybdena 0.02%, potassium oxide 0.03%, yttrium oxide 16.92%
With titanium oxide 0.5%, surplus is impurity.
It should be noted that the aluminium oxide wearable ceramic ball made of above-mentioned raw materials, including following components:
Aluminium oxide 65-80%；
Silica 8-17%；
Zirconium oxide 3-10%；
Iron oxide 0.1-1%；
Barium monoxide 2-5%
Alkali metal 0.7-2%；
Alkaline-earth metal 1.8-3.4%；
Titanium oxide 0.1-0.5%.
It should be noted that ceramic rod waste material, useless zirconium powder, alumina powder, dolomite and bentonite are resistance to as aluminium oxide
The raw material of Ceramic Balls is ground, barium carbonate promotes various raw materials to be reacted as main flux, wherein aluminium oxide, silica, oxygen
Change zirconium, can be used to be fabricated to the high abrasion porcelain ball that principal crystalline phase is mullite phase and zirconium oxide crystal phase.And titanium oxide can be steady
Determine the lattice phase of aluminium oxide wearable ceramic ball, alkali and alkaline earth metal ions can increase the agglutinating property of Ceramic Balls.
Aluminium oxide is added mainly using the leftover bits in several industrial productions as main raw material(s) in the present invention
Powder plays the strong point of respective raw material itself, and it is good to produce wear-resisting property, and intensity is high, and adaptation range is wide, containing certain zirconium oxide at
The aluminium oxide wearable ceramic ball of part.
S102: being put into ball milling in ball mill for the raw material and carry out 40~60h of grinding, and obtaining grind size is the μ of D50≤5
M, moisture content are the slurry of 25-40%, and the mobility of the slurry was controlled at 20-40 seconds.
Since primary raw material of the invention is ceramic rod waste material, different ingredient and impurity are contained in the inside, in order to guarantee
Grinding efficiency and size performance should prevent slurry from settling, and guarantee the mobility of slurry again, and the moisture of slurry of the invention contains
Amount is even more important.Preferably, the moisture content of slurry is 30-35%.
Preferably, the raw material is put into ball milling 55h in ball mill, obtains grind size Wei≤4 μm, the stream of the slurry
Dynamic property control was at 35 seconds or so.
S103: the slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment.
Han Tie Liang≤1% of the mud by preliminary treatment.
Preferably, Han Tie Liang≤0.3% of the mud by preliminary treatment.
By sizing material iron removing impurity, be conducive to keep its good sphericity and appearance when alumina ball blank forming.
S104: the slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is used for
Manufacture the powder of aluminium oxide wearable ceramic ball, wherein the particle size range of powder is that the mesh of D < 40 is the mesh of 40 Mu≤D≤60 less than 2%
For 35-50%, 60 mesh < D≤80 mesh are 25-40%, and 100 mesh < D is less than 15%.
The moisture content range of the powder is 5-7%.
Using powder by spraying processing technology, mud is made to the powder of different-grain diameter, such powder is being rolled onto porcelain ball
When, the bulk density of powder is higher, it is easier to be uniformly mixed with other raw materials, resulting product is smooth, good sphericity, size essence
Degree is high, and difference is minimum between ball and ball, and inherent quality is also guaranteed.
When powder is rolled onto porcelain ball in spherical machine, by controlling the accounting of different-grain diameter powder, so that the specific gravity of porcelain ball
Control is in 3.2-3.6g/cm3In range, the field of the porcelain ball of different specific weight, application is different, the wear-resisting pottery of aluminium oxide of the invention
Porcelain ball is mainly alternate application Ceramic Balls made of the bauxite in grinding low-end product field, meanwhile, aluminium oxide of the invention
The performance of wearable ceramic ball is also applicable in grinding high-end product field.
In addition, by the accounting of control different-grain diameter powder, so that porcelain ball is more uniformly stressed on surface in rolling, thus
Form that high-quality, size is accurate, porcelain ball of smooth outer surface.
Further, by the accounting of control different-grain diameter powder, yields of the porcelain ball in rolling molding can be improved,
Reduce the breakage rate of porcelain ball.Due to the binding force and porosity difference between different-grain diameter powder, in rolling molding, different grains
The powder of diameter can be preferably combined together.
S105: powder is put into nodulizer and is rolled onto porcelain ball.
S106: porcelain ball being placed in kiln and is fired, and firing temperature is 1200-1500 DEG C, and it is wear-resisting to obtain aluminium oxide
Ceramic Balls.
Porcelain ball is before entering kiln kiln roasting, and water point is containing amount≤1%, firing soaking time of the porcelain ball in kiln
It is 1~8 hour.
For 75 aluminium oxide wearable ceramic balls, the firing temperature of kiln is 1370~1400 DEG C.
For 85 aluminium oxide wearable ceramic balls, the firing temperature of kiln is 1450~1480 DEG C.
The present invention is illustrated with specific embodiment below
Embodiment 1
70% ceramic rod waste material of raw material is weighed, 13% zircon corundum brick waste material, 8% alumina powder, 6% dolomite, 3% is swollen
Profit soil；
The raw material is put into ball milling 40h in ball mill, obtains grind size Wei≤5 μm, the slurry that moisture content is 30%
The mobility of material, the slurry is controlled at 30 seconds or so；
The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；
Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is obtained for manufacturing oxygen
Change the powder of aluminium wearable ceramic ball, wherein the particle size range of powder is that the mesh of D > 40 is 1%, and the mesh of 40 Mu≤D≤60 is 37%, 60
Mesh < D≤80 mesh are 38%, and 100 mesh < D is 14%；
Powder is put into nodulizer and is rolled onto porcelain ball；
Porcelain ball is placed in kiln and is fired, firing temperature is 1200-1500 DEG C, obtains aluminium oxide wear-resistant ceramic
Ball.
Embodiment 2
78% ceramic rod waste material of raw material is weighed, 8% zircon corundum brick waste material, 5% alumina powder, 4% dolomite, 2% is swollen
Profit soil；
The raw material is put into ball milling 55h in ball mill, obtains grind size Wei≤4 μm, the slurry that moisture content is 35%
The mobility of material, the slurry is controlled at 35 seconds or so；
The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；
Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is obtained for manufacturing oxygen
Change the powder of aluminium wearable ceramic ball, wherein the particle size range of powder is that the mesh of D > 40 is 0.5%, and the mesh of 40 Mu≤D≤60 is 42%,
60 mesh < D≤80 mesh are 33%, and 100 mesh < D is 10%；
Powder is put into nodulizer and is rolled onto porcelain ball；
Porcelain ball is placed in kiln and is fired, firing temperature is 1200-1500 DEG C, obtains aluminium oxide wear-resistant ceramic
Ball.
Embodiment 3
80% ceramic rod waste material of raw material is weighed, 10% zircon corundum brick waste material, 4% alumina powder, 3% dolomite, 2% is swollen
Profit soil；
The raw material is put into ball milling 60h in ball mill, obtains grind size Wei≤5 μm, the slurry that moisture content is 40%
The mobility of material, the slurry is controlled at 40 seconds or so；
The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；
Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is obtained for manufacturing oxygen
Change the powder of aluminium wearable ceramic ball, wherein the particle size range of powder is that the mesh of D > 40 is 0.8%, and the mesh of 40 Mu≤D≤60 is 45%,
60 mesh < D≤80 mesh are 30%, and 100 mesh < D is 8%；
Powder is put into nodulizer and is rolled onto porcelain ball；
Porcelain ball is placed in kiln and is fired, firing temperature is 1200-1500 DEG C, obtains aluminium oxide wear-resistant ceramic
Ball.
Embodiment 4
Weigh 50% ceramic rod waste material of raw material, 41% alumina powder, 4% useless zirconium powder, 4% barium carbonate, 0.8% white clouds
Stone, 0.2% bentonite；
The raw material is put into ball milling 40h in ball mill, obtains grind size Wei≤5 μm, the slurry that moisture content is 30%
The mobility of material, the slurry is controlled at 30 seconds or so；
The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；
Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is obtained for manufacturing 85
The powder of aluminium oxide ceramic ball, wherein the particle size range of powder is that the mesh of D > 40 is 1.5%, and the mesh of 40 Mu≤D≤60 is 48%, 60
Mesh < D≤80 mesh are 27%, and 100 mesh < D is 5%；
Powder is put into nodulizer and is rolled onto porcelain ball；
Porcelain ball is placed in kiln and is fired, firing temperature is 1450-1480 DEG C, obtains 85 aluminium oxide ceramic balls.
Embodiment 5
Weigh 58% ceramic rod waste material of raw material, 32% alumina powder, 2% useless zirconium powder, 5% barium carbonate, 0.2% white clouds
Stone, 2.8% bentonite；
The raw material is put into ball milling 45h in ball mill, obtains grind size Wei≤4 μm, the slurry that moisture content is 38%
The mobility of material, the slurry is controlled at 40 seconds or so；
The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；
Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is obtained for manufacturing 85
The powder of aluminium oxide ceramic ball, wherein the particle size range of powder is that the mesh of D > 40 is 1.8%, and the mesh of 40 Mu≤D≤60 is 40%, 60
Mesh < D≤80 mesh are 35%, and 100 mesh < D is 11%；
Powder is put into nodulizer and is rolled onto porcelain ball；
Porcelain ball is placed in kiln and is fired, firing temperature is 1450-1480 DEG C, obtains 85 aluminium oxide ceramic balls.
Comparative example 1
Weigh 84.69% ceramic rod waste material of raw material, 12% aluminium oxide, 1% kaolin, 1% barium carbonate, 1% dolomite；
The raw material is put into ball milling 50h in ball mill, obtains grind size Wei≤5 μm, the slurry that moisture content is 30%
The mobility of material, the slurry is controlled at 30 seconds or so；
The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；
Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is obtained for manufacturing oxygen
Change the powder of aluminium wearable ceramic ball；
Powder is put into nodulizer and is rolled onto porcelain ball；
Porcelain ball is placed in kiln and is fired, firing temperature is 1200-1500 DEG C, obtains aluminium oxide wear-resistant ceramic
Ball.
Comparative example 2
52 parts of alumina powder of weighing, 3 parts of kaolin, 3 parts of flint clay clinker, 2 parts of diopside, 1.5 parts of talcum, dolomite
1.5 part；
The raw material is put into ball milling 40h in ball mill, obtains grind size Wei≤5 μm, the slurry that moisture content is 30%
The mobility of material, the slurry is controlled at 30 seconds or so；
The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；
Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is obtained for manufacturing oxygen
Powder is crossed in the double-deck roto-siofter 40 mesh and 140 meshes, obtains the powder between 40-140 mesh by the powder for changing aluminium wearable ceramic ball
Material；
Powder after sieving is put into nodulizer and is rolled onto porcelain ball；
Porcelain ball is placed in kiln and is fired, firing temperature is 1200-1500 DEG C, obtains aluminium oxide wear-resistant ceramic
Ball.
Comparative example 3
Aluminium oxide wearable ceramic ball is made using bauxite.
Table one is the diameter comparison of porcelain ball made of embodiment 1-5 and comparative example 1 and 2, wherein the size of porcelain ball is identical,
The diameter of porcelain ball is measured using measuring tools such as micrometers, every group of data take both direction (the i.e. horizontal direction of the same porcelain ball
And vertical direction) measured value, unit be millimeter (mm).
As shown in Table 1, the present invention implements the size variance minimum of the porcelain ball of 1-5, represents its size and deviates equal extent value most
Small, the accuracy consistency of size is best, sphericity is preferably also.
Aluminium oxide wearable ceramic ball made of embodiment 1-5 and comparative example 1-3 is tested, as a result shown in table two:
| Component (%) | Whiteness | Mohs' hardness | Specific gravity (g/cm3) | Equivalent wears away (%) |
| Embodiment 1 | 77 | 8 | 3.34 | 0.004 |
| Embodiment 2 | 76 | 8 | 3.35 | 0.003 |
| Embodiment 3 | 77 | 8 | 3.35 | 0.003 |
| Embodiment 4 | 77 | 8 | 3.61 | 0.004 |
| Embodiment 5 | 77 | 8 | 3.57 | 0.003 |
| Comparative example 1 | 75 | 7 | 3.21 | 0.007 |
| Comparative example 2 | 77 | 6 | 3.46 | 0.007 |
| Comparative example 3 | 40 | 5 | 3.01 | 0.024 |
As shown in Table 2, the present invention implements the specific gravity of the aluminium oxide wearable ceramic ball of 1-5 up to 3.6g/cm3, whiteness is 76
Up and down, wear-resisting property is good, and equivalent is worn away less than 0.005%, is higher than building material industry standard 0.02%.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (8)
1. a kind of preparation method of aluminium oxide wearable ceramic ball characterized by comprising
Raw material needed for weighing manufacture aluminium oxide wearable ceramic ball；
The raw material is put into ball milling in ball mill and carries out 40~60h of grinding, obtaining grind size is D50≤5 μm, moisture content
Mobility for the slurry of 25-40%, the slurry was controlled at 20-40 seconds；
The slurry is removed into iron by iron remover stirring, obtains the mud by preliminary treatment；
Slurry transportation Jing Guo preliminary treatment is subjected to powder by spraying processing into spray drying tower, is obtained for manufacturing aluminium oxide
The powder of wearable ceramic ball, wherein the particle size range of powder is that the mesh of D < 40 is less than 2%, and the mesh of 40 Mu≤D≤60 is 35-50%,
60 mesh < D≤80 mesh are 25-40%, and 100 mesh < D is less than 15%；
Powder is put into nodulizer and is rolled onto porcelain ball；
Porcelain ball is placed in kiln and is fired, firing temperature is 1200-1500 DEG C, obtains aluminium oxide wearable ceramic ball.
2. the preparation method of aluminium oxide wearable ceramic ball as described in claim 1, which is characterized in that the raw material includes:
Ceramic rod waste material；
Zirconium source；
Alumina powder；
Dolomite；
Bentonite.
3. the preparation method of aluminium oxide wearable ceramic ball as claimed in claim 2, which is characterized in that the zirconium source is fused alumina zirconia
Brick waste material or useless zirconium powder.
4. the preparation method of aluminium oxide wearable ceramic ball as claimed in claim 2, which is characterized in that the ceramic rod waste material
Including following components:
Aluminium oxide 60-80%；
Silica 15-25%；
Zirconium oxide 2-6%；
Iron oxide 0.2-0.8%；
Calcium oxide 0.01-0.1%；
Magnesia 0.01-0.1%；
Sodium oxide molybdena 0.1-0.9%；
Potassium oxide 0.1-0.5%；
Surplus is impurity.
5. the preparation method of aluminium oxide wearable ceramic ball as described in claim 1, which is characterized in that the water content of the powder
It is 5-7% for range.
6. the preparation method of aluminium oxide wearable ceramic ball as described in claim 1, which is characterized in that described to pass through preliminary treatment
Mud Han Tie Liang≤1%.
7. the preparation method of aluminium oxide wearable ceramic ball as described in claim 1, which is characterized in that porcelain ball is in entering kiln
Before firing, Shui divides Han Liang≤1%.
8. the preparation method of aluminium oxide wearable ceramic ball as described in claim 1, which is characterized in that the porcelain ball is in kiln
Firing soaking time be 1~8 hour.
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