| 摘要 |
1,173,955. Incinerators. T. SHIRAI. 23 Feb., 1967 [23 Feb., 1966], No. 8639/67. Heading F4B. Waste liquid containing combustible matter such as coal washing water is fed to the upper portion 318 of an incinerator, where it is traversed by bubbles from the lower parts of the apparatus, some of the water being taken off through a screen 319. The duratered solids descend to a drying section 322, which is spaced from the wall of the incinerator by a grid 324. Vanes 321 clear the screen 319, 324, and vanes 323 move the material both upwardly and downwardly through the drying bed to the fluidized bed combustion chamber 303. Vanes 311 immediately above the grating 302 stir the fluidized bed, circulating the particles upwardly. Some of the fluidized bed particles are recirculated through a separator 329, and an outlet 312 allows any lumps formed to be removed. A supplementary fuel is introduced at 305 and the bed may include a boiler coil 326. The combustion chamber with a mechanical stirrer may be used alone for solid wastes, a perforated plate and a second stirrer being spaced from the fluidizing gas distribution plate to prevent coarse lumps falling directly to the bottom of the incinerator (Fig. 1, not shown). |
