| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to injection moulding. Integral multi-chamber drying hopper assembly consists of combination hopper, electrical heating and compressed air feed system and temperature control system. Combination hopper comprises, at least, two sub hoppers, each being furnished with independent inlet, independent outlet and independent-control compressed air feed channel. All outlets of sub hoppers are communicated with thermal control chamber arranged there under. Thermal control chamber bottom accommodates main outlet and main air feed channel. Thermal control chamber and every sub hopper are equipped with independent temperature control systems. Branch compressed air feed channels are combined in compressed air feed system via compressed air feed lines.EFFECT: power savings, higher quality of drying of plastics.6 cl, 4 dwg |
