JINLING DRYING

The feed liquid is added to the upper part of the heater of the falling film evaporator through the feeding pump, evenly distributed by the film distribution device, and flows downward in a film like manner along the inner wall of the heat exchanger shell. The water evaporates rapidly, and the vapor and liquid are fully separated by the separation device. After condensation, the residual heat of the secondary steam can enter the rear or front channel for further heating, and the liquid phase is discharged from the separation chamber. It can also be used in combination with multi effect, forced circulation, MVR, solidification and other evaporators.

Mainly applicable to industries such as chemical, food, pharmaceutical, environmental protection, and waste liquid evaporation and recovery, it is a structurally, crystalline, high concentration, high viscosity, and insoluble solid evaporation and concentration method.

The evaporator is composed of a coaxial twin tube structure, which is connected by a central downcomer. The bottom structure (retention chamber or growth chamber) provides the necessary space and fluidization characteristics for crystal growth and suppression of supersaturation. Due to the control of crystal growth by the growth type crystallizer, the generated salt crystals can be classified according to particle size, and the classified salt crystals form a fluidized bed, suppressing the generation of supersaturation. The circulation of materials from the growth chamber to the heating chamber is achieved through an external pump.

This evaporative crystallizer is a continuous crystallizer with a flow tube and baffle for circulating crystal slurry. The system consists of a heating chamber, an evaporation crystallization chamber, a circulation pump, a vertical axial flow pump, a crystallization zone, an evaporation zone, and a mother liquor zone (baffle). The crystal particle size is around 0.2-1.2mm, with uniform particles and a smooth surface. Different products have different crystal characteristics, but within a certain range, the particle size can be adjusted, which is the characteristic of DTB crystallizer.