Coke oven gas and coal powder composite lance equipped with elbow

The utility model relates to a coke oven gas and coal powder composite lance equipped with an elbow, which omprises an outer tube. An inner tube is arranged inside the outer tube. The outer tube is provided with a gas branch pipe and the front end of a lance is equipped with an elbow. The outer wall...

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Bibliographische Detailangaben
Hauptverfasser:	WANG MINGLEI, ZHAN LIGANG, LUAN YUANDI, DONG BAOLI, LI BING, BO TAO, LV MEI, CAI ZHANGPING, LIU HONGDONG, LI DAWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS NOZZLES PERFORMING OPERATIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model relates to a coke oven gas and coal powder composite lance equipped with an elbow, which omprises an outer tube. An inner tube is arranged inside the outer tube. The outer tube is provided with a gas branch pipe and the front end of a lance is equipped with an elbow. The outer wall of the outer tube is equipped with an annular sealing sheet. The top surface of the annular sealing sheet is connected with a pressure ring. The pressure ring is connected with an arc-shaped plate through a connection column. According to the utility model, the lance and the lance-inserting channel of a straight blasting pipe are well sealed with each other and the back flow of hot air is avoided.