论文部分内容阅读
诺兰达铝业公司运转的两组敞开式环型焙烧炉,年产约90000吨预焙阳极。炉子的结构、火焰系统和炉子性能见表1。每个炉子有36个炉室,每个炉室有6个装料箱(长196英寸,深150英寸,宽28英寸),每个装料箱分四层,共装8块20英寸高的阳极。每个炉子有2个火焰系统,每个火焰系统经常是7个炉室运转(4个加热炉室,3个预热炉室),见图1。每个炉室的加热时间为18～24小时。炉子的主要控制参数是焙烧炉室的负压(保持在约0.05英寸水柱,烟气的负压要小于此数)和烟气的
Two open loop furnaces operated by Nolander Aluminum are producing about 90,000 tonnes of prebaked anodes. The furnace structure, flame system and furnace performance are shown in Table 1. Each oven has 36 oven compartments, each with 6 hoppers (196 in. Length, 150 in. In depth and 28 in. In width). Each hopper is divided into four levels for a total of eight 20-inch anode. There are 2 flame systems per furnace, and each flame system is often operated in 7 chambers (4 heating chambers, 3 preheating chambers), see Figure 1. Heating time for each oven is 18 to 24 hours. The main control parameters of the furnace are the underpressure of the furnace chamber (maintained at about 0.05 inches of water, less than the negative pressure of the flue gas) and the flue gas