| 摘要 |
In front of the inner face of each of the large sides of the boiler is, supported by hollow straight feet 22A supplying secondary air, a guide path 16 in the form of a loop with a lower channel 18B along which is moved a cross-member 21 provided with ash-removing teeth 26 by means of a motor member 15 and by a pusher chain 32, these being housed in a lateral casing 33 and in a duct 26 supplied with cool secondary air. <IMAGE>
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