Peat and its Uses as Fertilizer and FuelJohnson, Samuel W. (Samuel William)
Science
Peat and its Uses as Fertilizer and Fuel
Johnson, Samuel W. (Samuel William)
Fertilizers; Fuel; Peat
The peat is cut out by a gang of men, in large masses, cleared of coarse
roots and sticks, and pushed on tram wagons to the works, which, are
situated lower than the surface of the bog. Arrived at the works, the
peat is carried upon an inclined endless apron, up to a platform 10 feet
high, where a workman pushes it into the pulverizing mill, the
construction of which is seen from the accompanying cut. The vertical
shaft _b_ is armed with sickle-shaped knives, _d_, which revolve between
and cut contrary to similar knives _c_, fixed to the interior of the
vessel. The latter is made of iron, is 3-1/2 feet high, 2 feet across at
top and 1-1/2 feet wide at the bottom. From the base of the machine at
_g_, the perfectly pulverized or minced peat issues as a stiff paste. If
the peat is dry, a little water is added. Vogel found the fresh peat to
contain 90 _per cent._, of water, the pulp 92 _per cent._ Weber's
machine, operated by an engine of 10 horse power, working usually to
half its capacity only, reduced 400 cubic feet of peat per hour, to the
proper consistency for moulding.
[Illustration: Fig. 10.--WEBER'S PEAT MILL.]
Three modes of forming the paste into blocks have been practiced. One
was in imitation of that employed with mud-peat. The paste was carried
by railway to sheds, where it was filled by hand into moulds 17 inches
by 7-1/4 by 5-1/2 inches, and put upon frames to dry. These sheds
occupied together 52,000 square feet, and contained at once 200,000
peats. The peats remained here 8 to 14 days or more, according to the
weather, when they were either removed to the drying house, or piled in
large stacks to dry slowly out-of-doors. The sheds could be filled and
emptied at least 12 times each season, and since they protected from
light frosts, the season began in April and lasted until November.
The second mode of forming the peat was to run off the pulp into large
and deep pits, excavated in the ground, and provided with drains for
carrying off water. The water soaked away into the soil, and in a few
weeks of good weather, the peat was stiff enough to cut out into blocks
by the spade, having lost 20 to 25 _per cent._ of its water, and 15 _per
cent._ of its bulk. The blocks were removed to the drying sheds, and set
upon edge in the spaces left by the shrinking of the peats made by the
other method. The working of the peat for the pits could go on, except
in the coldest weather, as a slight covering usually sufficed to protect
them from frost.
Both of these methods have been given up as too expensive, and are
replaced, at present, by the following:
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Elsewhere in the archive
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account