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1、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
2、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
3、；耐火材料；烧嘴Thedesignof10theatholdingfurnaceAbstract：Thispaperdesigns10tmeltingheatholdingpreservationfurnace,themeltingtemperatureis680to780℃,Nominalcapacityis10T/furnace,theFurnacetypeisstationaryreverberatoryfurnace,Usingnaturalgasasfuel,thecalorificvalueis35421KJ／m3,theFurnacehigh
4、temperatureis1050℃，theLiquidheatingrateis≥30℃／h.Designisthemainpartofthefurnaceinmoltenpoolsize——thelengthis3132mm,thebreadthis2913mm,theheightis507mm,thewholesizeofthefurnaceis——thelengthis5509mm,thebreadthis5203mm,theheightis3160mm.selectoftherefractorymaterialsis:refractorymate
5、rialsoffurnacebottomisthreelayers,theinnerlayerusesaluminabricks;themiddlelayerusescastable;theexternallayeruseslightweightinsulationbrick;selectofthefurnacewalltherefractorymaterialsis:theInnerlayerwithacontactportionoftheliquidaluminumuseshighaluminabricks;theouterlayerusescasta
6、ble;theupperpartisnotincontactwithliquidaluminuminnerrefractoryclaybrick;theouterlayeruselightweightinsulationbrickandplusalayerofcalciumsilicateboard.Thefurnaceheatloadcalculationandchecking,Consumptionoftotalcaloriesforthestove2.43×106KJ,9.87×105KJfluetotakeawaytheheat,furnacebo
7、ttomheatlossof1.9×105KJfurnacewallheatloss119515KJ,roofheatloss98626KJ.Accordingtothestove'sheatloss,thechoiceoftwohigh-speedthermostatburner,thefuelgas.Thesametime,designingthedoorshapeandliftsystem;globalStressAnalysisofthefurnace,thechoiceofasuitableexternalsteel.Smokeextractio
8、nsystem,preheaterchoice.UseAutoCA
