APPEARANCE OF THE DRIED RESIDUUM. 



191 



tion of fuel consumption, the drying is done during the regular 

 sugar campaign, and the steam used is simply the exhaust from 

 the various pieces of apparatus of the factory. The daily 

 capacity of the dryer may be increased by adding an oven to the 

 series. It is claimed that with this apparatus, without any 

 additional device, it is possible to use the dryers for mixing dried 

 cossettes with residuum molasses. This device is so simple in 

 its construction that a drawing was considered unnecessary to 

 convey to the reader the general construction of the dryers. 



The Thiesen dryer consists of a large vertical cylinder in Thiesen dryer. 

 which are placed alternately funnels attached to the sides, and 

 a sort of plate or dish fixed to the axis of the cylinder. 

 Special scrapers are placed on the axis of the dryer, which 

 brush the funnels and force the substance being dried to fall 

 upon the plates, etc. The substance to be dried enters at the top 

 and leaves at the bottom of dryer. The Heckmann dryer consists 

 of a large horizontal cylinder closed by a suitable cover with 

 glasses for observation the progress of the drying can thus be 

 closely watched. In the interior is a series of platforms or shelves, 

 having at their lower portion pipes for heating, which may be 

 lengthened or shortened, as the occasion may demand. Piping on 

 top of the cylinder makes a connection with the vacuum pump. 



The dried cossettes consist of fragments, about one inch in Composition and 

 length, and light green in color. To the touch they are rather appearance of the 

 resistant and readily break between the fingers, especially when drled residuum - 

 they have been dried too much. Their average composition 

 is as follows: 



AVERAGE COMPOSITION OF DRIED COSSETTES. 



