Shaft lever mechanical sealing mechanism of high-temperature and high-pressure mixer for plastic production

• Main Authors: WU JIANWEI, RUAN YUNJIE, QU ZHIYONG, WU JUNHUI, KONG LIWEI
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2021
• Subjects: BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PISTONS; SEALINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

The invention provides a shaft lever mechanical sealing mechanism of a high-temperature and high-pressure mixer for plastic production, which comprises a driving mechanism arranged at the bottom end of a rotating shaft and comprising a V-shaped belt wheel and an expansion sleeve; a transmission mechanism arranged in the middle of the rotating shaft; and a sealing mechanism arranged in the center of the bottom of a kettle body container of the mixer and comprising a packaging mechanical sealing device, a mechanical sealing cooling chamber, a cooling chamber sealing cover, a mechanical sealing locking nut, a mechanical sealing pressing ring, a framework lip seal, a pressing ring sealing ring and a water pipe connector. The problems that under high-frequency rotation and vibration, when a set screw shifts or elastic pressure is not enough to compensate material abrasion, adjustment and maintenance are inconvenient, meanwhile, bearings at the two ends are positioned through shaft shoulders, assembling needs to be