高島炭鉱におけるホーベル採炭

抄録

The history of the hobel mining at Takashima Colliery is very long. It began with introducing the LObbe hobel in Decem ber 1957, and has been followed by the Umbau hobel and Reisshaken hobel which are working as the main mining machines now.
Firstly the Lobbe hobel was introduced in order to increase the productivity in a thin coal seam (=Banto seam).
It proved fairly successful.
Secondly in January 1961 the Umbau hobel which hobel and conveyor drive are done by different motors were introduced.
And in 1962 the productivity was led to 7.6t/M. S. in the Banto face.
Then, the heavy duty mechanization which combined the powered supports are the double drum shearer were proceeded.
But it had to be given up and it was taken the place by the single prop supports mining.
Because the barriers for the face mechanization are as follows.
1 the short working field 2 inclination 3 Matsuiwa (silicified hard rock in coal seam) 4 faults 5 the poor roof condition.
To deal with these problems Takashima colliery looked for the new coal mining machine.
As a result the S-3 Reisshaken hobel was chosen because of its adaptability to the matsuiwa, the faults, the inclination, the single prop supports and the working height.
The production by it started in July 1979 and all faces are equipped with the hobel at present.
But there.still remain a lot of problems concerning the face mechanization, especially such as the stable elimination and the combination with the powered supports.
The hobel mining has a long history, and today, the hobel occupies an important part in the coal winning machines in the the world, but the hobel mining is apt to be looked down, for the shearer mining occupies the speriority in number domestically.
This paper is nothing but discribing the hobel mining at a colliery, and yet it summarizes the introduction in the genesis' of the hobel mining and its changes, present and future, so, it would be grateful, if it is useful to you.