THE HORIZONTAL RETORT BENCH 119
Briefly, the advantages of the Mond type of producer are :—
(1) The closing down or reduction of the producer gas when standing off retorts,.
(2) The utilization of the coke dust.
(3) The recovery of the sulpliate of ammonia.
(4) The generating of cheaper gas.
(5) Regular heating by producer gas as compared with the variable gas con-stituent of the ordinary generator.
(6) Less combustibles in ashes and clinker.
THE “TEES ” PRODUCER
Within the last few years an outside producer, with mechanically operated grate, has been installed in connection with continuous vertical retorts at the Tottenham Gasworks. The instal
lation consists of four Tees producers, each 8 feet 6 inch.es diameter inside the firebrick lining, and 15 feet high. This type of producer possesses for its special features a combination of steel shell having the lower portion water cooled and the upper part lined with refrac-tory brickwork, with a rotating grate mounted eccentrically on water-luted ash discharge pan. These features are shown in the sectional elevation given in Fig. 62.
At the Tottenham works four producers are erected in a row, with a common operating platform and with gas outlets con-nected through dust catchers and mush-room type valves, with a common gas collect-ing main. Two steam
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Kig. 62.—The “ Tees ” Producer.