| 摘要 |
<p>1,023,014. Glass melting furnaces. FRAZIER-SIMPLEX Inc. Oct. 19, 1962 [June 1, 1962], No. 39581/62. Heading F4B. A glass-melting furnace comprises a tank having a melting zone 21, a main zone 22 and a working zone 14 connected to the main zone by a submerged passage 15, the floor of the melting zone being at a level appreciably above that of the main zone and connected thereto by a steep drop 20. Above the tank is a combustion chamber having a roof 10 and sides 11. Adjacent the drop 20, a transverse baffle 23 is provided across the combustion chamber, the lower edge of which baffle is above the operating level of glass in the tank. The sides of the chambers 21, 22, 14 are provided with burners 32, 36, 37 respectively and oppositely disposed burned gas outlet ports are connected by vertical flues to a common cross flue 39 opening into a metal stack 41 surrounded by a cylindrical shell 45 containing a helical baffle. A blower 50, Fig. 2 (not shown), forces air downwardly over the helical baffle and the air thus preheated is distributed through a series of pipes to the burners. The burned gases pass rearwardly in the melting zone 21 and forwardly in the main and working zones to the ports 34. The gases from the working zone pass over walls 16, 17 above the passage 15. The baffle 23 and also the stack 41 and shell 45 are supported independently of the roof 10 by separate arrangements of columns and beams.</p> |
