Fluidized bed dryer for PVC production

Abstract

The invention discloses a fluidized bed dryer for PVC production. The dryer comprises a machine shell, a fluidized bed, a vibration motor assembly, an air inlet pipe, an air outlet pipe, a feeding port, a discharging port and a feeding guide plate. The fluidized bed is arranged in the machine shell. The feeding port is formed in one side of the upper portion of the fluidized bed, the discharging port is formed in the other side of the lower portion of the fluidized bed, and the feeding port and the discharging port are in communication connection with the machine shell. The air inlet pipe is arranged below the fluidized bed and is in communication connection with the machine shell. The vibration motor assembly is arranged in the machine shell and located below the fluidized bed. The air outlet pipe is arranged on the top of the machine shell. The dryer is uniform in feeding, and good temperature is achieved at the initial stage. The fluidized bed feeding amount, the hot air flow, the material layer height and the fluidized bed temperature are reasonably controlled; and the situation that during fluidized bed fluctuation, distribution board dead angle and heating plate hanging materials are mixed in a system is avoided. The integral temperature of the fluidized bed is stable, PVC is not prone to deformation, and the PVC quality is good.

Description

technical field [0001] The invention relates to the technical field of PVC production, in particular to a fluidized bed drier for PVC production. Background technique [0002] In recent years, domestic PVC production capacity has grown rapidly, presenting a situation of oversupply, and the chlor-alkali industry is facing severe market competition pressure. Enterprises want to further improve the competitiveness of PVC products. The quality of PVC resin must not only meet the requirements of the national standard, but also meet the processing requirements of downstream customers as much as possible. [0003] PVC resin is a heat-sensitive resin. When the PVC resin is degraded by heat in a relatively high temperature, short time or low temperature, long time environment, there are more impurities; the PVC material entering the dryer accumulates in the dead corner of the air distribution plate, or heat The water heating plate is seriously hung, which leads to poor quality of PV...

AI Technical Summary

Problems solved by technology

[0003] PVC resin is a heat-sensitive resin. When the PVC resin is degraded by heat in a relatively high temperature, short time or low temperature, long time environment, there are more impurities; the PVC material entering the dryer accumulates in the dead corner of the air distribution plate, or heat The water heating plate hangs seriously, resulting in poor quality of PVC

Images