188 FEEDING WITH SUGAR BEETS, SUGAR, ETC. 



doubt, is a great exaggeration. Rydlewski has shown beyond 

 cavil that when the dryer is conducted as it should be there is 

 not a loss greater than 2.45 per cent, of dry substances, or 0.16 

 per cent, calculated upon the basis of the weight of the entire 

 beet; this is especially true in the Buttner and Meyer dryer. 



On the other hand, Kohler declares that in his investigations 

 the losses of dry substances are 0.1 per cent, of the beets worked, 

 and 1.7 per cent, of the total dry substance? contained in the 

 desiccated cossettes. 



The Buttner and Meyer dryer has had many applications in 

 Germany and in France, and our attention has been called to 

 data obtained at a factory at Fisme (France). The plant has 

 been .worked with great satisfaction for several years, all tem- 

 peratures being regulated automatically. Besides the regular 

 plant there is also a steam engine. At first coke was the only 

 combustible used, but at present any kind of fuel answers the 

 purpose. 



According to Brunehaut the analysis of fresh and dried pulp 

 at Fisme was as follows: 



FRESH COSSETTES. DRIED COSSETTES. 



Water 88.40. Water 10.36. 



Dry substances 11.60. Dry substances 89.64. 



The efficiency of the dryer is about 900 Ibs. dried cossettes 

 per hour, and the consumption of fuel (coal) about 800 Ibs. 



If we admit 900 ibs. per hour, this represents about 21,600 

 Ibs. per diem, and this amount contains 19,273 Ibs. dry sub- 

 stances, corresponding in fresh pulp to 166,100 Ibs. The 

 amount of water evaporated is correspondingly 

 166,100 21,600 = 144,500 Ibs. 



The consumption of coal is 19, '200 Ibs., consequently the fuel 

 consumption per Ib. of water evaporated is about 8 Ibs. The 

 cost of the dried cossettes including sinking fund for money in- 

 vested and all other items was about $16.00 per ton, or 72 cts. 

 per 100 Ibs. This is certainly in excess of what it should be 

 and may be due to fuel used. 



Cost of plant. Opinions vary some say to work 20,000 tons of beets the 

 plant would cost at least $20,000. 



