发电厂锅炉蒸汽凝结水回收已经得到广泛应用，为水资源的充分回收利用做出了重要贡献。但是，由于强碱性阴离子交换树脂的最高使用温度限制(OH-型，60℃)，蒸汽凝结水的温度一般需要冷却至50℃左右才能进入离子交换系统进行精制处理。不但损失了大量的热能，而且在缺水地区也会引起极大的不便。苏青集团经过多年潜心研究，开发出了可以在较高水温下(80℃以上)长期稳定运行的耐温型SQD-253G强碱阴离子交换树脂，与SQD-053G阳离子交换树脂一起对锅炉凝结水进行精处理，不但节约了大量的冷却水，而且回收了大量的热能，节能减排效益非常显著。
The boiler steam condensate from power plants has now been widely recovered. However, because the strong anion exchange resin’s maximum operation temperature cannot be over 60℃, the condensate has to be cooled to about 50℃before entering the polishing system. After many years dedicated study, Suqing Group developed and manufactured SQD-253G strong anion exchange resin, which can be used stably at elevated temperatures (e.g., 80℃and over). Together with SQD-053G cation exchange resin, the steam condensate is polished. Not only a large amount of cooling water can be saved, but also a lot of energy can be recovered. The cost saving is very obvious.
树脂的物化性能指标(Physical and Chemical Properties)
|
项目 |
SQD-053G |
SQD-253G |
|
树脂骨架(Matrix Structure) |
聚苯乙烯(Polystyrene) |
|
|
功能基团(Functional Group) |
磺酸(Sulfonic Acid) |
季铵(Quarternized Amine) |
|
质量交换容量(Mass Capacity)mmol/g≥ |
4.4 |
3.6 |
|
体积交换容量(Total Capacity)mmol/ml≥ |
1.8 |
1.4 |
|
含水量(Water Retention) % |
40-50 |
42-50 |
|
湿视密度(Density) g/ml |
0.76-0.85 |
0.66-0.75 |
|
湿真密度(Bulk Density) g/ml |
1.23-1.30 |
1.06-1.11 |
|
粒度范围(Particle Size) % |
(0.7-0.9mm)≥95 |
(0.5-0.7mm)≥95 |
|
有效粒径(Effective Size)mm |
0.7-0.8 |
0.5-0.6 |
|
均一系数(Uniformity Coefficient)≤ |
1.2 |
|
|
加度渗磨圆球率(Mechanical Strength) %≥ |
95 |
|
|
溶解性(Solubility) |
不溶于任何有机溶剂和酸碱(Insoluble in all common Solvents) |
|
|
出厂型态(Shipping Ion Form) |
H |
OH |
企业标准(Enterprise Standard)
SQD-053GQ/320281NAN 53-2018
SQD-253GQ/320281NAN 54-2018
树脂再生方法(Regeneration Method)
SQD-053G和SQD-253G一起用于混床凝结水精处理交换器。树脂出厂时已经经 过再生处理，装柱后经水洗就可以直接使用。树脂失效后按正常混床树脂再生即可。
SQD-053G and SQD-253G are used in the condensate polisher. The resins have been regenerated before shipping out. They can be used directly. After the resins are exhausted, do the regeneration by the same method as that of general mixed bed resins.
包装(Packing)
25Kg、25L编织涂膜袋，或1立方大包。
25Kg, 25L woven coating bag, or 1 cubic bag.
苏青SQ-681和SQ-742己内酰胺精制专用树脂
苏青SQD-777脱色专用树脂
苏青SQD-432钴镍吸附专用树脂
DTF系列淀粉糖专用分离树脂