キュポラに關する硏究（第1報）:—爐内の風の流れについて—
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概要
- 論文の詳細を見る
The purpose of this investigation is to know the foundamental knowledge of cupola operation, through surveying the relation between its construction or something else of cupola and the reactions in furnace, and also through surveying the effects of these factors upon the conditions of melting in furnace. In order to know the type of air flow blown from the blast pipe in furnace, a model like midget cupola was constructed and, under the non-burning condition, the blast pressure at wind box and at each section in the furnace was checked by varying the tuyère ratio, the effective height ratio, the coke size and the blast volume, and so on. And after giving considerations on the effects of these factors upon the flow of blast in furnace, some results obtained are as follows : (1) As the tuyère ratio increases, the blast pressure in wind box becomes higher gradually, and especially as the tuyère ratio is very large, it becomes extremely high, though the blast volume increases a little. (2) As the effective height ratio increases, the blast pressure in wind box becomes higher gradually and the relation between the both is nearly illustrated by a linear curve, and as the blast volume increases, the slope of the straight line becomes sharp. (3) As the coke size decreases, the blast pressure in wind box increases like a hyperbola, and the inclination is remarkable in case of the mixed cokes of various sizes are used. (4) When the furnace was filled with coke, the smaller the coke size the smaller the index of space, and when two different sizes of coke are mixed with the index of space becomes make it much smaller than the above figure. (5) Between the wall and the center in the furnace, when the coke size is large, the blast pressure in the furnace differs a little, but, when the coke size is small, the blast pressure of the wall in furnace rises greatly, and the wind flows along the wall side in furnace. This tendency is very remarkable in case of the two kinds of coke are mixed.
- Japan Foundry Engineering Societyの論文
Japan Foundry Engineering Society | 論文
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