Three-effect Falling Film Evaporator for Biomass slurry extraction

Machine Name

Three Effect Falling film evaporator

Three-effect Falling Film Evaporator for Biomass slurry extraction

Process Introduction

According to the process condition of the biomass slurry, the material properties and the structural characteristics of the three-effect evaporator, the design scheme is as follows. The material enters the balance tank from the previous process, and the feed pump is preheated by the plate preheater, and then enters the first effect evaporator. The external pressurized steam (raw steam) enters the outer side of the tube to heat and evaporate the material, and the material is heated to form a vapor-liquid mixture from the lower end of the tube to the outlet, into a split separator for vapor-liquid separation, and the secondary steam generated is separated. The secondary steam pipe at the upper end of the device enters the steam in the evaporator of the second effect body (outside of the column pipe), and the material sent from the centrifugal pump to the second-effect evaporator in the primary effect separator is subjected to secondary heating and evaporation, and the second effect evaporation In the device, the material is continuously evaporated and concentrated, and the generated secondary vapor-liquid mixture enters the second-effect separator to be separated from the vapor-liquid separation again, and the regenerated secondary steam enters the effect body of the third-effect evaporator from the secondary steam pipe at the upper end of the separator, and is heated. The material sent by the centrifugal pump in the second-effect separator is heated and evaporated three times, the material is again evaporated and concentrated, and the vapor-liquid mixture enters through the lower end of the column tube. Vapor-liquid separation efficiency of the separator, the hot steam generated into the final condenser cooling water discharged by the pump into a condensate, concentrated by evaporation at this time the material reaches the required concentration, is discharged by the discharging pump goes to a subsequent step.

Component

The equipment is composed of each effect tubular evaporator, each effect separator, condenser, gas-liquid separator, balance tank, Secondary steam pipe, vacuum pump, feed pump, discharge pump, intermediate circulation pump, condensate pump, electric control cabinet, work plate and variety of pipelines, valves and instruments, etc.