MODERN METHODS OF STREET CLEANING 



is divided into two symmetrical parts, each lateral 

 half containing eighteen furnace cells. These cells are 

 situated below the central platform on which the refuse 

 is dumped from the wagons. Each half is entirely 

 separate from the other and can be worked inde- 

 pendently. 



The tipping platform occupies the whole width of the 

 building except a long, central opening, about 2.72 

 yards wide, which serves for ventilation. The capacity 

 of the platform is sufficient to permit of the overhead 

 conveyance and management of the wagon bodies and 

 some temporary storage of refuse when the plant is 

 operated at its maximum capacity. A single cell is 

 capable of consuming daily an average of 357 tons 

 per day. 



The cells are fed at intervals of about 1| hours through 

 hoppers in the platform. The cells on the opposite 

 sides of the buildings are placed back to back 

 ator Si beneath the tipping platform and have a com- 

 mon feeding hopper. One workman can feed 

 about six cells. The refuse, which is fed through the 

 hoppers from the platform, falls upon the front of the 

 drying hearth of the furnace after which it is spread 

 over the grates and burned. 



The cells are stoked by attendants below through 

 two-winged furnace doors. The attendants use special 

 iron feeding tools with which they distribute the refuse 

 over the grate to assist the combustion. One man 

 can serve three furnaces in this way. A large part of 

 the success of the process depends upon the efficiency 

 with which the stoking is performed. The grate upon 

 which the refuse is burned has an inclination of 1 

 to 4. 



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