抄録
The present tendency in coke-oven operation is to perform it more economically by mechanisation and automation with an idealistic final aim of “no man” operation.
For charging coke-ovens, the author suggests the possibility of the followin devices:
(a) A battery without a chimney, in which hot waste gas is drawn mechanically, and the waste heat is utilized for drying the coal to be charged.
(b) A large, expensive coal bunker is replaced by a small one (sufficient for about 3 ovens only). Instead, a large scale blending and storage stations are installed on ground. Conveying of blended coal to the elevated small bunker thus becomes continuous. During this operation, the coal is dried by the waste hot gas as described in (a), making the moisture content of the coal charge constant, say 5%.
The author predicts the tendency of large-size ovens, i. e. higher ovens, mainly for economical reason. In Japan, the highest at present is 6m, but still higher 6.5m ovens (both of Carl-Still system) are under construction.
Possibility of fabrication of coke-oven refractories with higher refractoriness and better heat conductivity than in the present silica bricks is envisaged.
Up-to-date improvements in mechanisation and automation regarding coke-oven machineries, such as charging-car, coke-pusher, reversing winch etc. are described, and it is urged to further improve various operations in the sense of prevention of air pollution and the comfort of operaters, although there are certain limitations. In order to achieve such improvements, it is stressed that intimate cooperation of the coke-oven engineers, viz, team work, is vital beside individual exertion.
