Full resolution (JPEG) - On this page / på denna sida - VI. Mining and Metallurgical Industry. General Survey. By C. Sahlin - 2. Iron and Steel Industry. By J. A. Leffler
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vi. mining and metallurgical industry.
The leading idea of the Bessemer process is for the fining of the
pig iron to use only (1) the heat residing within the metal itself when
in a molten state (2) the heat generated when the blast sent through
the molten pig iron burns away the bodies (carbon, manganese, silicon,
phosphorus), which it is the object of the fining entirely or partially
to remove.
6. F. Göransson.
In 1855 and 1856 Bessemer had achieved such small success in carrying
his process into effect, that in England its prospects were regarded as
practically nil. No better success attended the experiments made at
Dormsjö in 1857 under the superintendence of a Swedish engineer, John
Leffler, and at the instigation of the proprietor of the works, Pontus
Kleman. Despite ali this, Bessemer’s patent was bought m Sweden by
Consul G. F. Göransson, who embarked on his experiments in November
of that year, at Edsken, with the assistance of the engineers C. LundviJf,
and C. P. Lindberg. ’-I
At Edsken was employed, to begin with, the same furnace that had
been used at Dormsjö; but afterwards a new Bessemer furnace was construe-’
ted, likewise after Bessemer’s designs. This furnace was a perpendicular
stationary furnace with two rows of tuyeres placed round the furnace near
the bottom. The results, however, were far from encouraging: the steel,
as a rule, flowed sluggishly, and could be only partially tapped from
the furnace or ladle. Göransson accordingly had the furnace altered with
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