TUBE FOR DROPPING OF RAW MATERIALS

PROBLEM TO BE SOLVED: To provide a tube for dropping of raw materials, which enables removal of objects to be processed between the tube for dropping of raw materials and a nozzle, without detachment of the tube for dropping of raw materials from the nozzle.SOLUTION: There is provided a tube for dropping of raw materials, which is mounted on a nozzle of a container, and used to drop raw materials into the container. The tube for dropping of raw materials includes: a tube body that has an inner hole through which the raw materials can be dropped, and which is inserted into the nozzle; and a mount ring that is formed around the entire circumference of the tube body, and which is placed and mounted on an end surface of the nozzle with sealing accomplished. A gap is formed between the nozzle, and the tube body having an outer diameter less than an inner diameter of the nozzle. The mount ring includes a communication hole having: an inner opening communicating with the gap; and an outer opening communicating with the outside.SELECTED DRAWING: Figure 1 【課題】 原料投下用管をノズルから取外すことなく、原料投下用管とノズルとの間の被処理物を除去することができる原料投下用管を提供する。【解決手段】 原料投下用管は、容器のノズルに取付けられ、容器内に原料を投下するためのものである。原料投下用管は、原料を投下可能な内孔を有し且つ前記ノズルに挿入される管本体と、管本体の周方向全周にわたって形成され、且つノズルの端面に載せてシールを達成した状態で端面に取付けられる取付リングとを備える。管本体は、その外径が前記ノズルの内径より小さく、前記ノズルとの間に間隙を形成し、取付リングは、間隙に繋がる内側開口と、外方に繋がる外側開口とを有する連通孔を有している。【選択図】 図１