Some incinerator designs are specially developed for on-site industrial applications. The outstanding design fea-
flame port ignition chamber secondary air port
ture of the retort incinerator (see Figure 10.11.7) is the multiple chambers connected by lateral and vertical breechings; the combustion gases must pass through several U-turns for maximum mixing. The inline design (see Figure 10.11.8) also emphasizes good flue-gas mixing. Here, the combustion gases are mixed by passing through 90° turns in the vertical plane only. Both designs are available in mobile styles for use in temporary applications such as land clearance or housing construction. The retort design is for smaller waste-burning capacities (under 800 lb/hr), while the inline design is for higher burning rates.
Rotary incinerators for burning solid or liquid wastes can be continuous or batch and can be charged manually or by automatic rams. Their capacities range from 100 to 4000 lb/hr. For burning waste that contains chlorinated organics, the incinerator chamber must be lined with acid-resistant brick, and the combustion gases must be sent through absorption towers to remove the acidic gases from the flue gas.
Adapted from Municipal Waste Disposal in the 1990s by Bela G. Liptak (Chilton, 1991).
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