剩余氨水净化装置的改进与应用

焦化厂4.3和5.5 m焦炉炼焦生成的剩余氨水采用刮板式除焦油器净化装置之后，存在净化后含焦油多、流量波动和pH值不稳定的问题，无法满足水处理净化要求。通过技改在剩余氨水净化流程中增加氨水静置分离和自流控制设备，成功解决了困扰剩余氨水处理中原料水含焦油多、流量和pH值波动的难题。

Development and Application of Purifying Device of Surplus Ammonia Water

The adoption of board-scraping coal tar remover set-up for purifying the surplus ammonia water produced during the coking which uses the 4.3 m and 5.3 m stamp-charging coke oven has many problems, such as the tar content is high after purification, the flow rate fluctuates, and the pH value is unstable. Therefore the requirements of water purifying process cannot be met. Based on the technological retrofit, through adding a tar-ammonia water sedimentation separator and automatic control equipment in the purification process of surplus ammonia water, the difficult problems mentioned above can be resolved successfully.