Particulate material gas treating appts. - comprises downwardly converging bin having central hot gas distributor with pellet cooler in bottom of bin

摘要

The appts. consists of a downwardly converging bin (10) having an outlet (12) at the bottom and a hot wind distributor (14) at the top. Central to the distributor is a material feed pipe or access opening (16). The distributor has a number of hot wind nozzles (28) which extend downwardly into the burden beneath the stock line (30). A central compartment (34) has a hot wind inlet (36). The peripheral compartment (38) has a hot wind inlet (40). A second hot wind distributor (44) is located in the centre of the bin (10). Hot wind is directed downwardly from the distributor through annular discharge slots (46, 48, 50, 52). A number of frusto-conical sections are placed atop each other and are spaced from and fastened to each other by spacers (54). A pellet cooler (60) is positioned in the lower portion of the bin (10), and consists of tiered gas discharge units nested one within the other.