Turned and aerated silo composting plant.

摘要

An aerating and turning composting plant comprises a silo (2) with plenum chambers (4) extending therethrough for supplying aerating air to material in the silo, a conveyor (1), for feeding material to the top of the silo and a coaltype cutter conveyor (6) for undercutting material from the bottom of the silo and depositing it on a conveyor (12) for transfer to a different silos chamber or back to the top of the initial silo chamber as required. Preferably, water sprinkling means (10) are provided to enable the moisture content of the compost to be controlled. Two forms of silo are disclosed, a rectangular silo, divided into a number of longitudinally spaced chambers or circular cross-section silos with a vertical axis in which the material is transferred from silo to silo. With the circular silo, the coal-type cutter conveyor can be mounted to extend radially of the bottom of the silo so that it can be swept around the central axis of the silo with the conveyor operating in a direction to deposit the material at the centre of the silo where it drops onto a conveyor beneath the silo which takes material clear of the silo for transfer elsewhere.