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Tel:
+86 (21) 6897 9561
Fax:
+86 (21) 6897 9562
Email:
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Chemical Packing >>> Ceramic Ball
>>>
Perforated Ball
Series
of ceramic balls have been developed since 1972, applying in various
industries, e.g. chemical, petrochemical, fertilizer, fine chemicals
and environmental protection industries. Several patents of our
products or production were granted by national authorities.
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Perforated Ball |
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Perforated ball is further developed based on inert alumina ball, which
is perforated through the ball body along its axes. Therefore, besides
characters of high mechanical strength, high chemical stability and heat
endurance, both the specific surface area and voidage for perforated
ball are increased a lot.
It can improve distribution of materials and
their flux. Comparing with inert alumina ball at the same operation
conditions, the voidage is increased by 12%, contacting specific surface
area is increased by 25%, and resistance to fluid of material is decreased by
15%. As a result, distribution of vapor-liquid is distributed more
evenly, and flow of material is increased significantly. It also absorb and withhold
impurities in the form of granular, colloid and heavy metals so that it
can avoid impurities depositing on the catalyst and prevent catalyst
from caking or poisoning.
Therefore,
perforated ball is
widely applied to replace inert alumina ball in petrochemical, chemical,
fertilizer, gas and environmental protection industries.
In
accordance with customer
specific needs, it can also carry active agents, e.g. molybdenum,
nickel, cobalt, to prevent catalyst from poisoning.
If any enquiry on this product, please feel free to contact us via
info@asiaron.com |
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| Chemical
Composition |
|
Item |
Index |
|
Al2O3
|
(Normal Value +4）% |
|
Al2O3+SiO2 |
92% Min. |
|
Fe2O3
|
1% Max. |
| |
|
Product Specification
|
Item |
Main Crystal Phase |
Feldspar |
Feldspar Mullite |
Mullite |
Mullite Corundum |
Corundum |
|
Al2O3 ,% |
20-30 |
30-45 |
45-70 |
70-90 |
≥90 |
|
Water
absorption, % |
≤5
|
|
Acid
resistance, % |
≥98 |
|
Alkali
resistance, % |
≥80 |
≥82 |
≥85 |
≥90 |
≥95 |
|
Thermal
resistance, °C |
≥300 |
≥400 |
≥500 |
≥700 |
≥800 |
|
Compressive Strength,
N/piece |
φ6 |
≥0.40 |
≥0.42 |
≥0.44 |
≥0.48 |
≥0.50 |
|
φ8 |
≥0.48 |
≥0.52 |
≥0.60 |
≥0.62 |
≥0.65 |
|
φ10 |
≥0.60 |
≥0.70 |
≥0.80 |
≥0.90 |
≥1.00 |
|
φ13 |
≥1.00 |
≥1.10 |
≥1.30 |
≥1.50 |
≥2.00 |
|
φ16 |
≥1.50 |
≥1.60 |
≥1.80 |
≥2.30 |
≥2.60 |
|
φ20 |
≥1.80 |
≥2.00 |
≥2.30 |
≥2.80 |
≥3.20 |
|
φ25 |
≥2.50 |
≥2.80 |
≥3.20 |
≥3.60 |
≥4.00 |
|
φ30 |
≥3.00 |
≥3.20 |
≥3.50 |
≥4.00 |
≥4.50 |
|
φ38 |
≥4.00 |
≥4.50 |
≥5.00 |
≥5.50 |
≥6.00 |
|
φ50 |
≥6.00 |
≥6.50 |
≥7.00 |
≥8.50 |
≥10.0 |
|
φ60 |
≥8.00 |
≥8.50 |
≥9.00 |
≥10.0 |
≥12.0 |
|
φ70 |
≥10.0 |
≥11.0 |
≥12.0 |
≥14.0 |
≥15.0 |
|
Bulk
Density* |
Kg/m3 |
1100-1200 |
1200-1300 |
1300-1400 |
1400-1500 |
>1550 |
| * Note: The
data of bulk density is only given for reference, not as the acceptance
criteria. |
Product Size |
|
Diameter, φ |
3 |
6 |
8 |
10 |
13 |
16 |
20 |
25 |
30 |
38 |
50 |
75 |
|
Tolerance, mm |
±1.0 |
±1.5 |
±2.0 |
±3.0 |
开孔瓷球是在惰性瓷球的基础上通过外形改造设计制成的一种新型支承、覆盖用球形填料。其主要原理为：采用刚玉和莫来石为产品主晶相，以长石玻璃和高岭土烧结体为结构桥梁，利用了氧化铝烧结体刚玉和莫来石晶体的高机械强度、耐高温、耐急冷急热特性、抗氧化、耐磨损、极低的化学活性、耐强酸碱腐蚀等。产品以球体直径为轴心开设单个或多个圆孔，解决了单个球体的回旋阻力问题。既具有一定的机械强度、化学稳定性和热稳定性，又增加了比表面积和空隙率，从而增加了物料的分散性和通量，降低了系统的阻力。经用户使用证明，在同一反应器、反应炉中，同等操作条件下，与原来的覆盖支撑材料相比，汽液分布更均匀，流量明显增大，系统阻力明显降低，空隙率增大12%，接触比表面积增大25%，阻力减少15%。同时可以容纳、截留焦粉、胶质、重金属杂质，避免其沉积在催化剂床层结焦、毒害催化剂。催化剂不结块，不烧焦，从而延长了催化剂的使用寿命。曲纹型开孔瓷球条纹或凸点外凸表面，提高了填料层的空隙率和比表面积，液体再分布能力强，汽液分散性能优良，与惰性氧化铝瓷球相同条件下的使用性能比较，广泛应用于冶炼、化肥、炼油、石化等行业。国家质量技术监督局连续三年对产品进行抽样检查，产品质量合格率100%
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