Improvements in Ovens or Furnaces for Drying and Coking Peat Briquettes and the like.
Year: 1893

page_text: Date of Application, 22nd July, 1893
Complete Specification Left, 21st Apr., 1894-Accepted, 2nd June, 1894
PROVISIONAL SPECIFICATION
Improvements in Ovens or Furnaces for Drying and Coking Peat
Briquettes and the like.
I, EMANUEL STAUBER of 38 Rutschbahn, Hamburg in the Empire of Germany
Engineer do hereby declare the nature of this invention to be as follows:-
This invention for Improvements in Ovens or Furnaces for Drying and Coking
Peat Briquettes and the like has for its object to dry the peat blocks by a continuous
process and to provide an improved arrangement of coking oven to facilitate the
coking.
The material to be dried is carried slowly, from an opening in the drying oven to
which it is fed, by means of endless carrying bands fitted with arms and passing
over hot plates arranged in stages one over the other in the oven, to the outlet of
the oven so that the blocks to be dried are forced to take a zig-zag course through
the oven.
The blocks after being dried are coked in a furnace provided with caps adapted
to allow of air being introduced to the coking space to combine with the gas given
off by the first heating to complete the coking process. The furnace is provided
with a suitable feed hopper adapted to be hermetically closed. The fire box is
arranged below the coking space from which it is separated by a draw plate opened
during the coking process and is adapted to be drawn out. The coked blocks are
removed by means of four plates arranged symmetrically on a shaft adjacent to the
inside lower corner of the fire box. When removing the blocks the fire box is
withdrawn, the draw plate opened and the shaft rotated so as to deliver a load of
bricks into a receptacle placed below. Exhaust pipes for drawing off the steam
and gases from the oven are provided with exhaust ventilators.
Dated this 22nd day of July 1893.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Ovens or Furnaces for Drying and Coking Peat
Briquettes and the like.
I, EMANUEL STAUBER, of 38 Rutschbahn, Hamburg, in the Empire of
Germany, Engineer do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
This invention for Improvements in Ovens or Furnaces for Drying and Coking
Peat Briquettes and the like has for its object to dry the peat blocks by a continuous
process and to provide an improved arrangement of coking oven to facilitate the
coking.
The material to be dried is carried slowly from an opening in the drying oven to
which it is fed by means of endless carrying bands fitted with arms and passing
over hot plates arranged in stages one over the other in the oven, to the outlet of
the oven so that the blocks to be dried are forced to take a zig-zag course
through the oven.
The blocks after being dried are coked in a furnace provided with caps adapted
D

page_text: to allow of air being introduced to the coking space to combine with the gas given
off by the first heating to complete the coking process. The furnace is provided
with a suitable feed hopper adapted to be hermetically closed. The fire box is
arranged below the coking space from which it is separated by a draw plate opened
The coked blocks are
during the coking process and is adapted to be drawn out.
removed by means of four plates arranged symmetrically on a shaft adjacent to
the inside lower corner of the fire box. When removing the blocks the fire box is
withdrawn, the draw plate opened and the shaft rotated so as to deliver a load of
bricks into a receptacle placed below. Exhaust pipes for drawing off the steam
and gases from the oven are provided with exhaust ventilators.
In the accompanying two sheets of illustrative drawings:
Fig. is a sectional elevation of the drying oven and
Fig. 2. is a sectional elevation of the coking furnace.
The drying oven rests on a brickwork foundation, and is preferably constructed
of iron, and has at the top the feed hopper A and the outlet tube B and at the
bottom the discharge hopper C and air inlets D. The briquettes are fed in at A
and fall on a hot plate E over which an endless travelling band F is slowly moved
round the rollers G, G. The carrying band consists of two link chains, to the
connecting bolts H of which, vertical plates I are firmly fixed, and move the
briquettes from one end of the oven to the other where they fall on to a second hot
plate E' and are again moved backwards by the plates I. On reaching the other
end of E they fall on a third hot plate E' and are led in the same manner by a
second carrying band F¹ to a fourth and fifth hot plates E³, E' and to a third
carrying band F2. After the briquettes have in this way passed through the
several stages of the oven they arrive completely dry and hard from the last
carrying band at the discharge outlet C which may be closed, and can be there
received on a carriage. The hot plates E to E' may, as shown, form a flat wide
heating tube or be made of a plain iron plate under which special heating tubes are
arranged.
The briquettes are now sent to the special coking furnace shown in Fig. 2.
They are fed through the hopper 1 until the coking space 3 closed by the disc 2 is
filled. The hopper 1 is then hermetically closed. The fire box 4 is then filled
with glowing coals and pushed back into the fire space 5. The disc 2 is now
drawn out and the coking process commences.
The gases and steam produced are exhausted by means of the outlet tubes 6, 7, 8
connected to the automatic ventilators 9. After the removal of all moisture, air
inlets constructed on the exterior of the furnace are from time to time opened.
The outer air enters through small connecting tubes 10 in the caps 11 which are
fastened to the central outlet tube 6. The air here mixes with the water gas which
is produced and which pervades the whole of the furnace and is partly intercepted
by the caps 11, being here ignited and carrying on and completing the coking
process. The products of combustion pass through the tube 6 and the branch
pipes 7 and 8 into the free air. The coked material is from time to time emptied
into the waggon 12, the fire box 4 being drawn out and the shaft 14 to which are
attached the wings 13 being rotated a quarter of a turn by means of a hand crank
fitted outside the furnace. By these means it is provided that only a waggon
load and not the contents of the furnace fall out. After leaving the furnace
and their subsequent cooling, the pent briquettes so produced are ready for
dispatch.
The whole of the described method of working is assisted by trams, tip waggons
and elevators so that all hand labour is as much as possible avoided and a controlling
staff only is necessary.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A continuous action drying oven for peat briquettes consisting of a series of

page_text: superposed drying plates and of a series of travelling bands for carrying the
briquettes over the drying plates; substantially as described.
2. A continuous action coking furnace for peat briquettes consisting of a coking
space, of a removable fire box underneath the fire box, of a removable damper
plate separating the coking space from the fire box, of air inlet pipes to the coking
space, of outlet pipes connected to exhaust ventilators from the coking space and
of a winged disc arranged below the coking space and adapted to remove the coked
briquettes when the fire box is removed, the whole substantially as described.
Dated this 20th day of April 1894.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.