(一)减压蒸发器流程能否控制减压蒸发器沸腾液位,是铜包套酸洗废液回收工艺的重要环节。工艺流程如图1所示。滤液在加热器加热,经蒸发器不断蒸发至冷凝器,同时从滤液槽中经隔膜伐不断向蒸发器进料,要维持蒸发器液位相对稳定,才能满足铜包套酸洗废液回收的全 (A) of the vacuum evaporator can control the boiling point of the vacuum evaporator, pickling waste liquid copper recycling is an important part of the process. Process shown in Figure 1. The filtrate is heated in the heater and evaporates continuously to the condenser via the evaporator. At the same time, the diaphragm is cut continuously from the filtrate tank to the evaporator to maintain the liquid level in the evaporator relatively stable, so as to meet the requirements of recovering copper coated pickling waste liquid all