AUTOMATIC SCRAPING DEVICE

PURPOSE:To reduce the running cost of an apparatus and enhance sealing proper ties by providing an antomatic scraping device for adhered substances adhered to the inner wall of a condenser for distilling ethylene glycol in a polyester continuous polymerization apparatus. CONSTITUTION:High-temperatur...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ISHIDA KAZUO, ISHIBE MASAHIKO, YAMANAKA KATSUHISA, SHINDO HIROHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To reduce the running cost of an apparatus and enhance sealing proper ties by providing an antomatic scraping device for adhered substances adhered to the inner wall of a condenser for distilling ethylene glycol in a polyester continuous polymerization apparatus. CONSTITUTION:High-temperature ethylene glycol glycol generated in a polymerization device is guided into a condenser, and after heating up by an outer peripheral jacket of a T-shaped vapor inlet nozzle 2, straightly makes a vapor- liquid contact with low-temperature ethylene glycol pouring on the inside of the condenser main body in the form of a liquid membrane at the root section of the vapor inlet nozzle 2. At that time, components entrained and adhered to are scraped off by rotating and transferring a piston rod 3 equipped with a scraping vane 4 at the end. Thus, adhesives are removed automatically without causing any problems in sealing properties.