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SNOW-MELTING MACHINE USED IN FINNISH CITIES
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7.2.1920
SNOW-MELTING MACHINE USED IN FINNISH CITIES
Notes from the Field
[Consul Parker W. Buhrman, Helsingfors, Mar. 24, 1920.]
After 10 years of experiment a Finnish engineer has invented the Fennia snow melter, manufactured by Rydman & Savonius, Helsingfors. This machine is now used in Finland, Scandinavia, and Russia. It is also patented in Canada and the United States.
The melting capacity of the machine is 25 or more cubic yards per hour, depending upon the size of the machine and the kind of
fuel used. Cheap fuel, such as wood coke, coal, kerosene, and crude
oil may be used. The smallest apparatus, weighing 500 pounds and requiring four men to keep it supplied with snow and fuel, uses, when fired with coke, 200 pounds of fuel and melts 32 cubic yards of snow per hour. The machine utilizes 90 per cent. of the
heat developed.
The apparatus consists of an iron furnace, waterjacketed all around; a snow receiver, or hopper, surrounding the upper part of the furnace; a system of ducts by means of which the water from the melting snow is again forced into the snow, thus increasing the melting; a highpressur fan driven by a small electric motor for creating a strong artificial draft and driving the heat developed out through the snow. The cooling of the furnace walls is accomplished by leading the snow water through the water jacket from which it is forced out again through jets into the snow.
The apparatus melts snow and ice. The dirt and gravel in the snow is automatically separated from the water outside the machine to avoid clogging drains or gutters.
The machine is used in Finland by street-cleaning departments, banks, public buildings, large business houses, and property owners. The use of this machine reduces the cost of removing snow from streets in Helsingfors about 60 per cent.—Commerce Reports
Ville bara nämna att det är en Deutz stationärmotor som kraftkälla här, liknande min 
