Recovery device for soluble salt in fly ash

The utility model discloses a device for recovering soluble salts in fly ash, belongs to the technical field of caprolactam concentrated waste liquid treatment, and aims to solve the problems that the treatment cost of fly ash generated after the concentrated waste liquid is incinerated is relatively high, and the recycling and reduction of solid wastes are difficult to achieve. Comprising a dissolving kettle, a fly ash feeding pipeline, a process water pipeline, a settling tank, a filter press and a recycling mechanism, fly ash generated by incineration is dissolved by the dissolving kettle, settled by the settling tank, subjected to solid-liquid separation by the filter press and filtered, separated and recovered by the filter, so that the treatment amount of the fly ash is greatly reduced, soluble salt in the fly ash can be recovered, and the recycling and reduction of hazardous wastes are realized, namely the danger treatment cost is reduced. 本实用新型公开了一种飞灰中可溶性盐回收装置，属于己内酰胺浓缩废液处理技术领域，针对了浓缩废液进行焚烧处理后产生的飞灰处置费用较