GB191124748A - Improvements in and relating to the Removal of Water from Wet-carbonised Peat. - Google Patents

Abstract

24,748. Rigby, T., and Testrup, N. Nov. 7. Peat, p r e p a r i n g.- Wet - carbonized peat, obtained as described in Specification 10,834/03, is dispersed in a finely divided condition in hot flue gases from the furnace of the carbonizer or the like and remains dispersed until dried. The peat, treated in a filter press so that 70 per cent of water remains, is pulverized and dispersed in flue gases such as those traversing the rotary drier described in Specification 16,958/11, and carried along by them until dried, whereupon it may be delivered into a cyclone or other depositing-device into which the drying-duct leads, and which may be placed over the fire-proof storage chamber. In the apparatus shown, the disintegrated peat is fed by a hopper, set near the filter presses and provided with baffles b and a rotary valve c, to a duct e through which a fan d draws the gases. The duct is forked, and cyclones f are provided on the arms g of the fork, delivering the peat to a hopper h and the gases to ducts i, j. The peat so obtained may be dried in Schultze driers. such as are described in Specification 12,013/10, [Class 55(i), Coking &c.], and briquetted, or may be briquetted directly, or may be consolidated for use in an ammonia-recovery gas-producer, being in this case mixed with tar from the producer. The hopper h is set in the neighbourhood where the peat is next to be treated. The material deposited from one stream of gas may be further dried and separated in other streams. The gases, which may be derived from the carbonizer or boiler furnace or an internal-combustion engine of the installation, may be supplemented by gas derived from an independent furnace. Specification 4684/11 is referred to.