1、 Overview of mother liquor drying process

(1) Liquid evaporation

Complete separation of gas and liquid phases in the engine room.

The separated liquid (with a tax rate of 70%) is subjected to secondary drying using a single axis disc. Disc dryer as a new type of drying equipment for drying mother liquor

Always high. The main body of the disc dryer consists of a cylindrical outer shell and a set of centrally penetrating discs. The disk group is hollow, and the heat medium comes from here

The water vapor formed by the evaporation of material moisture accumulates in the dome above the disc, is carried out of the dryer by a small amount of ventilation, and enters the condenser to remove the gas

The process, so the condenser temperature is relatively high. The wastewater flowing down from the condenser flows into the buffer tank for centralized collection and is handed over to the sewage treatment plant

The small thruster on the dryer pushes the material to flow in the designated direction and plays a stirring role. The disc dryer utilizes the double-sided heat transfer of each disc, which can

Therefore, the wear and tear is minimal. The disc surface is perpendicular to the shaft, so its rotation does not affect the flow of materials. The disc edge of the disc dryer

Containing materials and water vapor generated by material evaporation. There is a fixed scraper on the inner wall of the shell. The scraper is very long and extends into the gap between the discs to prevent large gaps

Compared with other devices, the equipment has the advantages of large heat transfer area, good stirring effect, and better promotion of water evaporation and removal. It is a newly developed improved model

The function of the edge pushing/agitator is to evenly and slowly transport the material through the entire dryer, and it is dried by thermal contact with the turntable.

The moisture content of the discharged material after drying by the disc dryer is 35%~40%, and it is then sent to the cooling machine. Our company is equipped with the following two types of cooling machines (one or the other):

Wedge shaped hollow blades are densely arranged on the hollow shaft, and the refrigerant flows through the blades through the hollow shaft, while the refrigerant flows into the shell jacket. The refrigerant passes through the rotary joint,

Greatly increase the drying strength of the equipment. The evaporated water is carried out of the dryer by the dehumidification fan, and the dust is recovered by the cyclone separator.

The cooling screw conveyor utilizes a double-layer U-shaped groove and the action of circulating water to force the material to undergo physical cooling during operation,

There is an external cooling water jacket outside the material running speed body, and the two ends of the shaft are empty tubes. The cavity of the spiral plate is connected to the empty tubes at both ends of the shaft,

After the spiral plate cavity, it flows out through the outlet air pipe, forming an internal cooling water channel. The material is cooled evenly during transportation, and the cooling effect is good.