| 摘要 |
PROBLEM TO BE SOLVED: To provide a carbonization apparatus capable of performing accurate carbonization at an aimed carbonization rate.SOLUTION: The carbonization apparatus includes: a standard gas supply source 115 for adding a standard gas 4 of nitrogen gas to a carbonization gas 3; a combustor 120 for combusting the gaseous mixture of the carbonization gas 3 and the standard gas 4 to dispatch an inspection gas 9; a gas flow-rate meter 132 for measuring the flow-rate Fi of the inspection gas 9; a gas concentration measurement unit 131 for measuring the carbon dioxide concentration Cc and the nitrogen gas concentration Cn in the inspection gas 9; and a calculation and control unit 130 for obtaining the flow-rate Fn of nitrogen gas in the gaseous mixture based on the flow-rate Fi and the concentration Cn, obtaining the generation amount Wc of carbon component in the carbonization gas 3 based on the flow-rate Fs of the standard gas 4 supplied to the carbonization gas 3, the flow-rate Fa of air 8 supplied to the combustor 120, the flow-rates Fn and Fi, and the concentration Cc, obtaining the carbonization rate Dt of carbonized coal 2 based on the supply weight-rate Wo of the low-grade coal 1, the generation amount Wc, and the concentration Cg of carbon component in low-grade coal 1, and controlling a valve 118a so as to obtain aimed carbonization rate Dr. |
