Improvements in Apparatus for Separating Coal and Impurities therefrom.
Year: 1890

page_text: Date of Application, 12th Sept., 1890-Accepted, 15th Nov., 1890
COMPLETE SPECIFICATION.
Improvements in Apparatus for Separating Coal and Impurities
therefrom.
I JOHN BUCKINGHAM POPE, of The Luhrig Coal and Ore Dressing Appliances
Limited, 32 Victoria Street, Westminster Middlesex, Gentleman do hereby declare
the nature of this invention which bas been communicated to me from abroad by
Julius Bartsch, Engineer, of Gottesburg, in the German Empire, and in what manner
the same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention has for object the separation, in a continuous manner, of two
classes of coal of different specific gravities, from each other, and their impurities,
such as shale, stone pyrites etc., as will be found very advantageously done in
washing coking coal, or soft coal mixed with cannel or gas coal containing a high
percentage of fixed ash, or with hard coal unsuitable for coking, and thereby
deteriorating the coke.
In carrying out this invention the machinery is so arranged that the operation of
separating the two classes of coal of different specific gravities is accomplished by
ordinary jiggers in the following manner, reference being had to the accompanying
sheet of drawings.
The coal in its mixed state is fed into the hoppers A, A, for delivery into the
washing jiggers B, B. These jiggers are so regulated in working that only the
specific lighter class of coal will pass over the sills of the jiggers on to draining
sieves C, C, which may be either stationary, as shown in the drawing, or with a
shaking motion, or fine meshed sizing drums may be employed in lieu thereof, from
which it falls into the storage hopper D ready for delivery into trucks when needed.
The heavier class of coal, together with the impurities mixed therewith, is drawn off
by the outlets usually serving for the outlet of impurities only (at E, E, in the washers
shewn in the drawings) into the channels F, F, leading to the pit G, from whence an
elevator having perforated buckets H lifts the coal and impurities for discharging
into a sizing drum I which by spouts J delivers the two or more sizes of coal into a
second set of jiggers B' for further treatment, the heavy coal in this case is delivered
from the jiggers B' over the draining sieve C¹ into a storage hopper K for delivery
into trucks etc., and the impurities alone are drawn from the bottom E¹ of the
jiggers B' into a channel L leading to the pit M from which the impurities are lifted
by the elevator N also provided with draining buckets P into a hopper Q arranged
behind that containing the heavier class of coal.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The general arrangement and combination of appliances as illustrated in the
accompanying drawings for continuously, in a simple and effective manner, separating
two classes of coal of different specific gravity from each other and from the impurities
contained therewith as set forth.
Dotal this 19th love of Santambar 1800.
H. GARDNER,
Patent Agent, 166, Fleet Street, London, Agent for the said J. B. Pope.