干熄焦除盐水装置的应用与探讨

Application and discussion on CDQ demineralized water system

酒钢焦化厂3#、4#焦炉干熄焦除盐水装置以反渗透(RO)系统、混床系统为核心设备,全自动过滤器、超滤系统(UF)为预处理单元,采用高分子分离膜加混床的制水方式,生产的除盐水品质高,膜前压力保持在0.02～0.06MPa的低水平,超滤进水流量可稳定在70t/h左右。介绍了除盐水装置在实际应用中出现的问题和采取的各项改进措施。

For the CDQ demineralized water system for No.3 and No.4 coke ovens of Jiu-steel,reverse osmosis system and mixing bed system are taken as the key equipment,the fully automatic filter and ultrafiltration system are used as pre-treatment unit;the water making mode of macromolecule separation film and mixing bed is adopted and the produced demineralized water is high in quality;the pressure before the film is kept at low level ranging from 0.02~0.06MPa and ultrafiltration incoming water flow rate can be stabilized at about 70t/h.The problems occurring in the actual application of the demineralized water system and various kinds of improving measures taken are described.