JPH0392759U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例を示すローラハー
ス式バレル炉の中間シエルの側断面図、第２図は
同上中間シエルの正面図、第３図は被処理鋼管の
曲り状況を、補助バーナなしの従来炉と比較して
示す概略図で、Ａは従来炉の場合、Ｂは本考案の
場合、第４図はこの考案を実機に適用した際の管
送り速度と管の表面積当りの容積の関係を例示し
た図、第５図はこの考案の対象とする従来のロー
ラハース式バレル炉を示す平面図、第６図は第５
図の−線上の縦断面図である。 １……バレル本体、２……加熱用バーナ、３…
…中間シエル、４……水冷式送管ローラ、５……
補助バーナ、７……被処理鋼管。 Fig. 1 is a side sectional view of the intermediate shell of a roller hearth type barrel furnace showing an embodiment of this invention, Fig. 2 is a front view of the same intermediate shell, and Fig. 3 shows the bending state of the steel pipe to be treated without the use of an auxiliary burner. Fig. 4 is a schematic diagram showing a comparison with a conventional furnace, where A is the conventional furnace, B is the case of the present invention, and Figure 4 shows the tube feed rate and volume per surface area of the tube when this invention is applied to an actual machine. Figure 5 is a plan view showing the conventional roller hearth type barrel furnace to which this invention is applied, and Figure 6 is a diagram illustrating the relationship.
It is a longitudinal cross-sectional view on the - line of a figure. 1... Barrel body, 2... Heating burner, 3...
...Intermediate shell, 4...Water-cooled pipe roller, 5...
Auxiliary burner, 7...Steel pipe to be treated.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 加熱用バーナを有するバレル本体と、水冷式送
管ローラを有する中間シエルとからなり、被処理
鋼管の進行方向に分割されたローラハース式バレ
ル炉において、少なくとも加熱帯に位置する水冷
式送管ローラに近接して搬送ラインより下方に上
向きの補助バーナを配置したことを特徴とするロ
ーラハース式バレル炉。 In a roller hearth type barrel furnace consisting of a barrel body having a heating burner and an intermediate shell having a water-cooled feed tube roller, which is divided in the traveling direction of the steel pipe to be treated, at least the water-cooled feed tube roller located in the heating zone is A roller hearth type barrel furnace characterized by an upwardly directed auxiliary burner arranged close to and below the conveyor line.