— 231 — 
Under the bunkers (E) shutters are placed, through which the 
mixed products are drawn off into railway wagons. 
In the first compartments of the washers (15) the pyrites are 
obtained, ond goes along a launder to the fixed draining screens (19), 
to be collected in the storage bunkers (G) underneath, before being 
loaded into railway wagons. 
The shale washed out in the second and third compartments of 
the washers (15) is taken along launders to the dirt bucket elevator 
(20), in which it is drained before being lifted to the dirt bunker (H). 
The shale is discharged at the level of the tippler platform 8000 mm. 
above rail level. 
From the two bucket elevator sumps (B) and (D) the clarified 
water flows over launders to the pump sump (P), and is lifted back 
to the washers and flushing launders by the centrifugal pump (21). 
Briquette Factory 
In accordance with the resulls of the briquetting tests on coal 
quality No. 4, about 5 °/, of tar or pitch must be added to the coal 
before going to the presses. 
The space under the towers (C) serves as a pitch cellar, while 
the space between the washery and the briquelting plant can also be 
used for this purpose. 
The pitch is broken up by hand on the small grizzly in front 
of the bucket elevator (22) and lifted to the pitch mill (23) by the 
latter. 
The pitch falls into a small vessel under the mill, and is scraped 
off from a plate (24) underneath in quite a definite proportion to the 
coal (about 5 °/,) into the screw conveyor (12). The coal is taken in 
this latter from the towers to the disintegrator (13), into which the 
mixture is again thoroughly mixed and broken up. 
The crushed product is lifted by the bucket elevator (25) to the 
warming oven (26), in which the pitch is softened. The warm misture 
is scraped off at the circumference into the screws (27) and taken to 
the gug mills (kneaders) of the two briquette presses (28). 
From the latter the rekneaded material comes on to the plates, 
from which it is scraped off into the moulds of the press plates. 
High pressure is then applied on both sides of the briquettes, 
which thereupon pass over shoots to the briquette loading belt (29) to 
the railway trucks. 
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