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我厂尿素脱蜡装置原有两台纯辐射圆筒炉,分别加热减二线蜡油和常二线脱蜡油。辐射室较矮,烟囱长期冒火,热效率很低。为降低能耗,我厂增加了一个对流室供两炉合用。自1981年3月完成改造以来,完全达到了预期的主要技术经济指标,两台炉子的热效率由过去的54～55%提高到了82～83.5%。改造的主要项目如下(参见图1):1.增加一个公用的对流窒(长×宽×高=3×2×6米),对流炉管采用φ102×8×3200毫米的钉头管,总吸热面积为81米~2。2.对流室安装电动吹灰器6台。3.为减少两台炉子烟道气的相互干
Urea dewaxing plant I plant the original two purely radial cylindrical furnace, respectively, heating less second-line wax and often second-line dewaxing oil. Radiation room shorter, the chimney fire, thermal efficiency is low. In order to reduce energy consumption, I added a convection chamber for two furnaces. Since the completion of the renovation in March 1981, the main technical and economic indicators have been fully met. The thermal efficiency of the two furnaces has been raised from 54 to 55% to 82 to 83.5%. The main items of the renovation are as follows (see Figure 1): 1. Add a common convection choke (L × W × H = 3 × 2 × 6m) and the convection tube adopts a nail tube of φ102 × 8 × 3200mm, Endothermic area of 81 meters to 2.2. Convection room to install electric sootblower 6. 3. To reduce the two furnace flue gas mutual dry