Novel pulverized coal spraying ball valve

A novel pulverized coal spraying ball valve adopts an adjustable seal pressure device, a seal ceramic sealing material and a structure for blowing off accumulation of dirt on the surface of a ball body. The binding force of the ball body with a seal ring hard sealing pair and a sealing surface can b...

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Bibliographische Detailangaben
Hauptverfasser:	QIAN YAOMING, CHEN ZHONGDA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A novel pulverized coal spraying ball valve adopts an adjustable seal pressure device, a seal ceramic sealing material and a structure for blowing off accumulation of dirt on the surface of a ball body. The binding force of the ball body with a seal ring hard sealing pair and a sealing surface can be adjusted, the leakage of pulverized coal can be efficiently prevented, the service life of the seal ring is long, and the accumulation of dirt on the surface of a ball body is convenient to move away. The device with the structure has the advantages of simple structure, reliable running and long service life.