The American florist : a weekly journal for the trade . The Use of Slack Coal. and, when burned, leave spaces and tun-nels through which the air can get tothe coal, already afire from contact withthe more combustible ingredient of themixture. By this method slack coal maybe burned in the most obdurate is only a question of intelligent ex-periment. To start a slack coal fire, about twoshovels of shavings, or kindling, is re-quired. Over this is spread a thin layerof coal. As this charge burns out, amixture of coal and shavings is put oncarefully, so as not to smother the cha
The American florist : a weekly journal for the trade . The Use of Slack Coal. and, when burned, leave spaces and tun-nels through which the air can get tothe coal, already afire from contact withthe more combustible ingredient of themixture. By this method slack coal maybe burned in the most obdurate is only a question of intelligent ex-periment. To start a slack coal fire, about twoshovels of shavings, or kindling, is re-quired. Over this is spread a thin layerof coal. As this charge burns out, amixture of coal and shavings is put oncarefully, so as not to smother the charge is repeated, each one beinglarger and fuller of coal until the maxi-mum per cent of coal which the furnace J. The Use of Slack Coal. will burn without coaxing, is fire must at all times be maintainedas evenly as possible over the grate soas to force the air to become heated bycoming through the incandescent thickness of the fire may be 4 to 6or 7 inches. Over the oblong grate the coal usuallyburns best spread out level. To holdthe fire in this style grate the coal shouldlay as much as possible in flat loaf shape,either one large loaf in the center, or two smaller ones with thinner spaces incenter and around sides (Figs. 1-2). Inthe circular type of furnace it burnsbest when located in the center, stackedand built up so as to allow plenty ofair to come up all around and under it burns, cracks and chambers formin these masses, which further assistcombustion by providing new air pas-sages (Fig. 3—a and b). For experimental purposes, temporaryair tubes may be let in over the in Fig. 6. A permanent means ofsupplying air is shown in Fig. 4, adaptedto horizontal
Size: 1255px × 1991px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea
