10吨熔铝保温炉的设计（毕业学术论文设计）.doc

PAGE 10t熔铝保温炉的设计 摘要：本文对10t熔铝保温炉进行了设计，熔体温度680～780℃，额定容量10t／炉，炉型为固定式反射炉，用天然气作为燃料，热值为35421KJ／m3，炉膛最高温度1050℃，液体升温速度为≥30℃／h。设计主要结果如下：炉子的炉膛尺寸为：长3132mm,宽2913mm，高507mm；炉子的炉体尺寸为：长5509mm，宽5203mm，高3160mm。炉子耐火材料选择如下：炉底耐火材料采用三层结构，内层选用高铝砖，中间层选用浇注料，外层选用轻质保温砖；炉壁耐火材料选择如下：内层跟铝液接触部分采用高铝砖，外层采用浇注料；上部不跟铝液接触部分内层采用耐火粘土砖，外层采用轻质保温砖再加一层硅钙板。炉顶耐火材料采用耐火粘土砖外加一层轻质保温砖。炉子热负荷计算结果如下：炉子总热量消耗为2.43×106KJ，烟气带走的热量为9.87×105KJ，炉底热损失为1.9×105KJ，炉壁热损失为119515KJ，炉顶散热损失为98626KJ。根据炉子的热量损失，选用两个高速调温烧嘴，燃料为天然气。同时对炉门形状以及升降系统进行了设计；通过对炉子的整体受力分析，选用了合适的外部型钢。对排烟系统，预热器进行了选用。使用AutoCAD软件绘制了10t保温炉总图，保温炉钢结构总图，炉门总图。 关键词： 保温炉；热负荷；耐火材料；烧嘴 The design of 10t HYPERLINK /heatheat holding furnace Abstract：This paper designs 10t melting HYPERLINK /heatheat holding HYPERLINK /preservationpreservation furnace, the melting temperature is 680 to 780℃, Nominal capacity is 10T/furnace, the Furnace type is stationary reverberatory furnace, Using natural gas as fuel, the calorific value is 35421KJ／m3 , the Furnace high temperature is 1050℃，the Liquid heating rate is ≥30℃／h. Design is the main part of the furnace in molten pool size—— the length is 3132mm, the breadth is 2913mm, the HYPERLINK /heightheight is 507mm, the whole size of the furnace is——the length is 5509mm, the breadth is 5203mm, the HYPERLINK /heightheight is 3160mm. select of the refractory materials is: refractory materials of furnace bottom is three layers, the inner layer uses alumina bricks; the middle layer uses castable; the external layer uses lightweight insulation brick; select of the furnace wall the refractory materials is: the Inner layer with a contact portion of the liquid aluminum uses high alumina bricks; the outer layer uses castable; the upper part is not in contact with liquid aluminum inner refractory clay brick; the outer layer use lightweight insulation brick and plus a layer of calcium silicate board. The furnace heat load calculation and checking, Consumption of total calories for the stove 2.43 × 106KJ, 9.87 × 105KJ flue to take away the heat, furnace