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Ceramic Balls
Ceramic Balls
中文链接：瓷球
Ceramic balls can be divided into inert ceramic balls, activated balls and grinding balls. Ceramic ball has good resistance with high temperature, high pressure, acids, alkalis, salts and organic solvents, also it has good chemical stability, low water absorption, can withstand temperature variations, etc., mainly used in the reactor as tower packing, catalyst support and cover material, grinding media.
Inert Ceramic Balls
Product model: YY06-I
Inert ceramic ball has good chemical stability, high strength, good thermal stability, low water absorption, high temperature resistance, high pressure resistance, corrosion resistance of acids, alkalis, salts and organic solvents, is a very good catalyst support and cover material, widely used in petroleum, chemical, fertilizer, natural gas and environmental protection industries. Inert ceramic ball in the reactor as catalyst support and cover material, can improve the distribution of gas and liquid, cushion the impact of liquid and gaseous on the catalyst, protect the low strength catalyst. Based on its aluminum content, inert ceramic ball can be divided into ordinary ball, middle-alumina ball, high-alumina ball.
Physical Properties
|
Materials |
Feldstar |
Feldstar mullite |
Mullite |
Mullite corundum |
Corundum |
|
|
Al2O3 % |
20-25 |
25-45 |
45-70 |
70-90 |
＞90 |
|
|
Bulk density g/cm3 |
1.3-1.4 |
1.4-1.5 |
1.5-1.6 |
1.6-1.8 |
＞1.8 |
|
|
Water absorption % |
＜3 |
＜3 |
＜3 |
＜3 |
＜1 |
|
|
Acid resistance % |
＞98 |
＞98 |
＞98 |
＞98 |
＞98 |
|
|
Alkaline resistance % |
＞80 |
＞82 |
＞85 |
＞90 |
＞95 |
|
|
Mohs hardness scale |
≥6.5 |
≥6.5 |
≥6.5 |
≥6.5 |
≥6.5 |
|
|
Thermal conductivity Kcal/mh |
≥0.7 |
≥0.7 |
≥0.7 |
≥0.7 |
≥0.7 |
|
|
Temp. sharp change reisitance ℃ |
＞250 |
＞300 |
＞500 |
＞700 |
＞800 |
|
|
Fire resistance ℃ |
＞1300 |
＞1400 |
＞1500 |
＞1600 |
＞1700 |
|
|
Compressive strength KN/pellet |
φ6 |
＞0.4 |
＞0.45 |
＞0.6 |
＞0.7 |
＞0.8 |
|
φ8 |
＞0.7 |
＞0.8 |
＞0.9 |
＞1.0 |
＞1.2 |
|
|
φ10 |
＞0.9 |
＞1.0 |
＞1.2 |
＞1.5 |
＞1.8 |
|
|
φ13 |
＞1.2 |
＞1.3 |
＞1.6 |
＞1.8 |
＞2.0 |
|
|
φ16 |
＞1.5 |
＞1.6 |
＞1.8 |
＞2.3 |
＞2.6 |
|
|
φ20 |
＞1.8 |
＞2.0 |
＞2.3 |
＞2.8 |
＞3.2 |
|
|
φ25 |
＞2.5 |
＞2.8 |
＞3.2 |
＞3.6 |
＞4.0 |
|
|
φ30 |
＞2.8 |
＞3.0 |
＞3.5 |
＞4.0 |
＞4.5 |
|
|
φ38 |
＞4.0 |
＞4.5 |
＞5.0 |
＞5.5 |
＞6.0 |
|
|
φ50 |
＞6.0 |
＞6.2 |
＞10.0 |
＞10.5 |
＞11.0 |
|
|
φ60 |
＞8.0 |
＞8.5 |
＞11.0 |
＞12.0 |
＞14.0 |
|
|
φ75 |
＞11.0 |
＞12.0 |
＞13.0 |
＞14.0 |
＞15.0 |
|
Chemical Composition
|
Al2O3 |
17～99.5% |
Fe2O3 |
＜1% |
Na2O |
＜1.5% |
K2O |
＜2.5% |
|
SiO2 |
＜85% |
CaO |
＜1.5% |
MgO |
＜1% |
others |
tiny |
1. Al2O3 + SiO2 ≥92%
2. Al2O3 and SiO2 can be produced according to customer requirements.
3. Bulk density is for the reference only.
Perforated Ceramic Balls
Product model: YY06-P
Perforated ceramic ball is perforated based on the spherical diameter of the inert ceramic ball as the axis; convex-concave groove perforated ball is opened groove and presented convex-concave body on the surface of the perforated ball. Perforated ball solves the problem of individual sphere cyclotron resistance of ordinary inert ceramic balls, and it has stronger liquid redistribution, better vapor-liquid dispersion effect, larger porosity and specific surface area. Compared with ordinary inert ceramic balls, resistance decreased by 15%, contact surface area increased by 25%, porosity increased by 12%.
Perforated ball not only has the properties of ordinary inert ceramic balls such as high chemical stability, high strength, high temperature resistance, high pressure resistance and corrosion resistance, but also has larger specific surface area and porosity, better dispersion and flux, lower system resistance.
Physical and chemical properties
|
Index |
Unit |
Data |
|
|
Al2O3+SiO2 |
% |
>90 |
|
|
Al2O3 |
% |
16-30 |
|
|
SiO2 |
% |
68-73 |
|
|
Fe2O3 |
% |
<1 |
|
|
CaO |
% |
<1.5 |
|
|
MgO |
% |
<2.5 |
|
|
K2O+Na2O |
% |
<4 |
|
|
Water adsorption rate |
% |
<0.5 |
|
|
Bulk density |
Perforated Ball |
kg/m3 |
1.3-1.4 |
|
Convex-concave groove perforated ball |
1.25-1.35 |
||
|
Gross density |
kg/m3 |
2.2-2.35 |
|
|
Maximum operating temperature |
℃ |
982 |
|
|
Moh's hardness |
scale |
>6.8 |
|
Compression strength
|
Size |
Compression strength (kg/piece) |
Compression strength (N/piece) |
|
3mm (1/8”) |
>28 |
>285 |
|
6mm (1/4”) |
>55 |
>550 |
|
13mm (1/2”) |
>170 |
>1670 |
|
19mm (3/4”) |
>430 |
>4210 |
|
25mm (1”) |
>635 |
>6220 |
|
38mm (1.5”) |
>910 |
>8920 |
|
50mm (2”) |
>1000 |
>9800 |
Specifications
|
Diameter |
Φ6 |
Φ8 |
Φ10 |
Φ13 |
Φ16 |
Φ20 |
Φ25 |
Φ30 |
Φ38 |
Φ50 |
Φ60 |
Φ75 |
|
Tolerance (mm) |
±1.0 |
±1.5 |
±2.0 |
±3.0 |
||||||||
|
Perforated aperture (mm) |
2-3 |
3-5 |
5-8 |
8-10 |
||||||||
Porous Ceramic Balls
Product model: YY06-M
Porous ceramic ball also called filtering ball, its characteristics is an increase of 20% -30% adsorption microporous in inert ceramic balls. These microporous can filter heavy metal, resin, asphalt, coke powder and other impurities in the oil, avoiding its deposit in the catalyst bed to poison catalyst. Users can choose this porous ball with different holes diameter and holes number in accordance with the size of the foreign particles, also can according to the requirements to load molybdenum, nickel, cobalt and other active ingredients in order to prevent catalyst carbon deposit, coking and poisoning.
Physical and Chemical Properties
|
Item |
Unit |
YY06-M1 |
YY06-M2 |
YY06-M3 |
|
|
Chemical components |
Al2O3 |
% |
20-80 |
||
|
Al2O3±SiO2 |
% |
≥90 |
|||
|
Fe2O3 |
% |
≤1 |
|||
|
Aperture |
um |
0.5-35 |
40-100 |
110-1000 |
|
|
Porosity |
% |
20-30 |
15-25 |
15-25 |
|
|
Air permeability |
m3.cm/m2.h.10Pa |
0.2-0.8 |
1-6 |
7-50 |
|
|
Acid resistance |
% |
≥98 |
≥98 |
≥96 |
|
|
Alkali resistance |
% |
≥85 |
≥85 |
≥80 |
|
|
Temp. sharp change resistance |
( △T)℃ |
800 |
800 |
800 |
|
|
Compression strength |
N/ball |
100-12000 |
|||
|
Bulk density |
kg/m3 |
1200-1500 |
|||
Heat Storage Ceramic Balls
Product model: YY06-R
Heat storage ball has good thermal stability, big heat capacity, excellent thermal conductivity, high regenerative efficiency, extreme changes in temperature without cracking, strong slag resistance, high strength, good wear resistance and other advantages. It can divide airflow into small airflow unit and form a strong turbulence flow, can effectively break through the boundary layer of the regenerator surface. It has small diameter, small conduction radius, small thermal resistance, high density, good thermal conductivity, and regenerative burners can achieve fast and frequent reversing requirements.
Heat storage ball is suitable for air separation regenerator and blast furnace gas furnace in steel mills as regenerative packing.
Physical and Chemical Properties
|
Items |
Unit |
YY06-RA for air separation |
YY06-RF for gas furnace |
|
Al2O3 |
% |
20-30 |
45-75 |
|
SiO2±Al2O |
% |
≥92 |
≥95 |
|
Fe2O3 |
% |
≤1 |
≤1.5 |
|
Size |
mm |
10-12/12-14 |
16-18/20-25 |
|
Thermal capacity |
J/kg.k |
≥836 |
≥1000 |
|
Thermal conductivity |
w/mk |
2.6-2.9 |
|
|
Temp. sharp change resistance |
℃ |
20~800 |
20~1000 |
|
Refractoriness |
℃ |
1550 |
1750 |
|
Compression strength |
N |
800-1200 |
1800-3200 |
|
Bulk density |
kg/m3 |
1300-1400 |
1500-1600 |
Refractory Ceramic Balls
Product model: YY06-R
The main features of refractory ceramic balls are high temperature resitance, also it has the features of acid resistance, alkali resistance, high compressive strength, high thermal stability, mainly used for converter, converting furnace, hot blast furnace in urea, sulfuric acid, fertilizer, metallurgy and other industries.
In addition to sphericity, our company can also offer refractory slab.
Size: Φ3, Φ6, Φ10、Φ13, Φ16, Φ20, Φ25, Φ30, Φ50
Al2O3: 17%～90%
Physical and chemical properties
|
Items |
Unit |
Refractory ball |
Corundum refractory ball |
Low silicon refractory ball |
|
Al2O3 |
% |
45 ～ 90 |
90 ～ 98 |
≥ 99 |
|
SiO2 |
% |
10 ～ 70 |
0.5 ～ 5.0 |
≤ 0.3 |
|
Fe2O3 |
% |
≤ 1 |
≤ 0.5 |
≤ 0.1 |
|
Porosity |
% |
≤ 20 |
≤ 15 |
≤ 10 |
|
Refractoriness |
℃ |
≥ 1450 |
≥ 1750 |
≥ 1850 |
|
Temp. sharp charge resistance |
℃ |
600 |
800 |
800 |
|
Compression strength |
N/ P |
150~20000, according to the content and specifications of Al2O3 |
||
|
Moh's hardness |
Scal |
≥ 7 |
≥ 8 |
≥ 9 |
|
Acid resistance |
% |
≥ 95 |
≥ 98 |
≥ 98 |
|
Alkali resistance |
% |
≥ 85 |
≥ 95 |
≥ 98 |
|
Bulk density |
kg/m3 |
1200～1400 |
1300～1500 |
1300～1700 |
Grinding Ceramic Balls
Product model: YY01-G
Grinding balls can be divided into silicon carbide grinding balls, zirconium oxide grinding balls, microcrystal middle-alumina grinding balls, high-alumina grinding balls.
Grinding balls have high hardness, high bulk density, low abrasion, good regularity, corrosion resistance, etc., are the grinding media of grinding equipment such as vibration mill, pot mill, ball mill, its grinding efficiency and wear resistance significantly are superior than ordinary ball stone or natural cobblestone.
Grinding balls can be used as ball bearing under pusher kiln, for metal parts polishing, grinding and dispersion of non-metallic mineral powder, glazes, blanks (such as zirconium silicate, kaolin, heavy calcium carbonate, etc.). Widely used in ceramics, cement, glass, enamel, paint, oil paint, refractory materials, chemical and other industries.
Physical and chemical properties
|
Items |
Unit |
Microcrystal balls |
Silicon carbide balls |
High-alumina balls |
|
|
YY06-G70 |
YY06-G65 |
YY 06-G92 |
YY06-G95 |
||
|
Al2O3 |
% |
65-75 |
60-70 |
≥92 |
≥95 |
|
SiO2 |
% |
15-20 |
20-25 |
≤4.0 |
≤3.0 |
|
Fe2O3 |
% |
≤0.41 |
≤0.5 |
≤0.06 |
≤0.05 |
|
TiO2 |
% |
≤1.7 |
≤1.8 |
≤0.04 |
≤0.02 |
|
Other |
% |
≤5 |
≤10 |
≤2.53 |
≤1.9 |
|
Compression strength |
MPa |
>1000 |
>1000 |
>2000 |
>2100 |
|
Moh's hardness |
scale |
≥8 |
≥8 |
≥9 |
≥9 |
|
Water adsorption rate |
% |
≤0.01 |
≤0.05 |
≤0.01 |
≤0.005 |
|
Volume density |
g/cm3 |
2.93-3.0 |
2.80-2.90 |
≥3.60 |
≥3.65 |
|
Abrasion |
% |
≤0.01 |
≤0.08 |
≤0.011 |
≤0.0084 |
|
Color |
|
Yellow\White |
Brown |
White |
White |