风城县科委设计了一种具有多种用途的民用二次热风除尘节煤炉,结构如图所示。这种炉子的外壳为铸铁制成;炉芯为七种耐火保温材料烧制的,经久耐用;炉膛为圆台体,下大上小;内壁有十四个通风槽,燃烧室还有三个长扁形二次热风口,并与炉底上 Fengcheng County Science and Technology Commission has designed a variety of uses of civilian secondary air dust coal stove, the structure shown. This furnace shell is made of cast iron; furnace for the seven fire-resistant insulation material firing, durable; Furnaces for the truncated cone body, the next big big small; the inner wall of the fourteen ventilation slots, the combustion chamber there are three long flat Secondary hot air outlet, and with the bottom of the furnace