DRYING SYSTEM IN SYNTHETIC RESIN RAW MATERIAL DRYING DEVICE FREE TO SELECT DEHUMIDIFYING DRYING/HOT AIR DRYING

摘要

PURPOSE: To remarkably improve the molding work efficiency by achieving a space saving at a molding work site, compressing the facility investing cost down to 1/2 - 1/3 in comparison with a conventional one and making it possible to deal with various synthetic resin materials only by change-over operation of a selector valve. CONSTITUTION: A basic line is constituted by sequentially connecting a humidifier D.D, a heater box H.B and a hopper dryer H.D to each other with a pipe line P1. The selector valves V1, V2 are respectively connected to the input side of the humidifier D.D and a suitable point between the humidifier D.D and the pipe line P1 with the heater box H.B, a fan F is made freely mountable on the input side of the valve V2 when required and a by-pass line P2 is connected to the output side of the valve V1 and the input side of the valve V2.