高爐配料計(jì)算

1、鋼鐵冶金學(xué)i(煉鐵)大計(jì)算學(xué) 院： 高等工程師學(xué)院 指導(dǎo)教師： 劉征建 專業(yè)班級(jí)： 冶金e111 姓  名： 楊澤榮 學(xué)  號(hào)： 41102010 2014年5月1日設(shè)計(jì)高爐計(jì)算物料平衡計(jì)算（1） 原料消耗量計(jì)算配料計(jì)算fe平衡方程fe生=94.561*10=945.61kgfe焦=474.21*（0.0102*55.85/71.85）=3.760kgfe煤=68*0.0096*55.85/71.85=0.507kgfe渣=945.61*0.0015/0.9985=1.421kgfe碎=20*0.85=17.000kgfe塵=16.6*0.3820=6.

2、341kgp*fe%=945.61+1.421+6.341-0.507-3.760-17.000=932.105kg設(shè)配燒結(jié)礦x，澳礦y（p、fe平衡聯(lián)立）0.52427x+0.64983y=932.105（1）474.21*0.0005*62/142+68*0.0006*62/142+0.00157x+0.00070y=2.85+16.6*0.00109（2）解得：x=1754.176kg y=19.148kg堿度平衡方程cao礦=1754.18*0.1178=206.642kgcao焦=474.21*0.0085=4.031kgcao煤=68.0*0.0083=0.564kgcao塵=16

3、.6*0.0811=1.346kgcao礦+cao焦+cao煤-cao塵=209.891kgsio2礦=1754.18*0.0929+19.15*0.0247=163.436kgsio2焦=474.21*0.06=28.453kgsio2煤=68*0.0551=3.747kgsio2碎=20*0.1=2.000kgsio2塵=16.6*0.0987=1.638kgsisio2生=0.52*60/28*10=11.143kgsio2礦+sio2焦+sio2煤+sio2碎-sio2塵-sio2生=184.855kgq=（184.855*1.13-209.891）/（0.5530-0.0103*1.

4、13）=-1.86不加熔劑，重新計(jì)算礦石消耗量1.13*（x*0.0929+y*0.0247+28.453+3.747+2.000-1.638-11.143）=x*0.1178+4.031+0.564-1.346（3）聯(lián)立（1）（3）式，解得x=1725.74kg y=42.09kg名稱kg/t鐵%燒結(jié)礦1725.7497.61911澳礦42.092.380885混合礦1767.83100熔劑（石灰石）0（2） 渣量和渣成分計(jì)算feo渣=94.561*10*71.85/55.85*0.0015/0.9985=1.828kgcao渣=1725.74*0.1178+4.031+0.564-1.34

5、6=206.541kgmno渣=0.14*10*71/55*0.3/0.7=0.775kgsio2渣= 1725.74*0.0929+42.09*0.0247+28.453+3.747+2.000-1.638-11.143= 182.780kgal2o3渣=1725.74*0.0283+42.09*0.0152+474.21*0.0447+68.0*0.0443+20*0.01-16.6*0.0262=73.453kgmgo渣=1725.74*0.0236+42.09*0.0028+474.21*0.0023+68*0.0026-16.6*0.0330=41.565kgs/2渣=0.5*（0.

6、95*（1725.74*0.00051+42.09*0.00016+474.21*0.0074+68*0.0035）-0.022*10-16.6*0.0039）=2.059kg組分caosio2mgoal2o3mnofeos/2rkg/t206.54182.7841.5773.450.781.832.06509.00%40.5835.918.1714.430.150.360.40100（3） 生鐵成分核算mn=0.001*（1725.74*0.00116+42.09*0.00082-16.6*0.00093-0.775*55/71）=0.142%p=0.001*(1725.74*0.00157

7、+42.09*0.00070-16.6*0.00109+474.21*0.0004*62/142+68*0.0006*62/142)= 0.282%c=100-94.561-0.52-0.142-0.282-0.022=4.473組分fesimnpsc%94.5610.520.1420.2820.0224.473100（4） 風(fēng)量計(jì)算c平衡a) 計(jì)算風(fēng)口前燃燒碳量c礦=0c熔=0c碎=20.0*0.04=0.8kgc焦=474.21*0.8513=403.695kgc煤=68.0*0.8194=55.719kgc塵=16.6*0.20156=3.346kgcdfe=12/55.85*(10*9

8、4.561-20*0.94561)*0.45=89.600kgcdsi,mn,p,s=24/28*10*0.52+12/55*10*0.14+60/62*10*0.282+12/32*509.00*0.008=9.019kgcc=10*4.473=44.730kgch2o化=0.3*12/18*42.09*0.0224=0.189kgc風(fēng)口=0.8+403.695+55.719-3.346-89.600-9.019-44.73-0.189=313.291kgb) 計(jì)算風(fēng)量鼓風(fēng)中o2的濃度=（1-0.0175）*0.21+0.5*0.0175=0.215燃燒c風(fēng)口需o2量=22.4/24*313

9、.291=292.405 nm3/t其中，噴吹物可供o2=68*（0.0081*22.4/32+0.0180*22.4/36）=1.147則v風(fēng)=（292.405-1.147）/0.215=1354.688鼓風(fēng)比重=32/22.4*（1-0.0175）*0.21+28/22.4*（1-0.0175）*（1-0.21）+18/22.4*0.0175=1.279kg/ nm3鼓風(fēng)重量=1354.688*1.279=1732.65kg/t風(fēng)中水分=0.0175*1354.688=23.70704nm3/t干風(fēng)體積=（1-0.0175）*1354.777=1330.981干風(fēng)重量=1330.981*（

10、32/22.4*0.21+28/22.4*（1-0.21）=1713.638 kg/t（5） 爐頂煤氣量及成分計(jì)算h2：入爐總h2=0.0175*1354.777+11.2*474.21*（0.0051+4/16*0.0051）+11.2*68*（0.0217+2/18*0.0180）+0.3*22.4/18*42.09*0.0224=75.969 nm3h2還=0.4*75.969=30.388 nm3vh2=0.6*75.969=45.581 co2：a:22.4/159.7*(1725.74*0.5747+42.09*0.9241-16.6*0.46063)+22.4/87*(42.09

11、*0.0013)= 143.5076b:22.4/55.85*(1-0.45-0.081591)*(10*94.561-20*0.85)= 174.455rh2=55.85/22.4*30.388/(10*94.561-20*0.85)= 0.082c:22.4/44*(42.09*0.0033-16.6*0.0162)= -0.06619vco2=317.896co:a:22.4/12*313.311=584.8472b:22.4/12*(89.600+9.019+0.189)= 184.4416c: 174.455+143.5076=317.9626vco=451.3262n2:a: 13

12、54.777*(1-0.0175)*(1-0.21)= 1051.544b:22.4/28*(474.21*0.0050+68*0.0088)= 2.37556vn2=1053.92h2o:a:18/22.4*30.388=24.41893b:0.7*42.09*0.0224=0.659971h2o=22.4/18*(24.41893+0.659971)= 31.2093干煤氣比重=44/22.4*0.1701+28/22.4*（0.2415+0.564）+2/22.4*0.0244=1.343179kg/nm3干煤氣重量=1868.723*1.343179=2510.066kg/t成分nm3

13、/t%kg/tco451.326224.15%564.1578co2317.89617.01%624.4386h245.5812.44%4.069732n21053.9256.40%1317.41868.723100.00%2510.066煤氣含水31.209325.0789兩次迭代成分nm3/t%kg/tco452.23790.2421565.2974co2316.984710.1697622.6485h244.669370.02393.988337n21053.920.56431317.41867.811981.00002509.334煤氣含水32.1209325.81146收入項(xiàng)支出項(xiàng)名

14、稱kg/t鐵名稱kg/t鐵礦石（混）1767.83生鐵1000熔劑0爐渣509廢鐵20煤氣（干）2509.334焦炭（干）474.21煤氣中水分25.81146噴吹物（煤粉）68爐塵16.6鼓風(fēng)1732.76總計(jì)4062.8總計(jì)4060.745絕對(duì)誤差2.05454相對(duì)誤差0.051%nco和nh2計(jì)算、核算直接還原度（1） nco和nh2計(jì)算nco=41.21nh2=41.20%nh2/ nco=1（2） 核算直接還原度rdrd=1-rico-rih2=1-ri= 41.21%/（1- 41.21%）=0.7009696ri=(55.85/(945.61-20)*( 412.0835/12)

15、*(16.97%+0.7009696*2.39%)/(16.97%+24.21%)-(16.6*0.046063+1725.74*0.5747+49.02*0.9241)/159.7-42.09*0.0013)=0.55c氣化=565.2974*12/28+622.6485*12/44= 412.0835kgrd=0.45 與預(yù)選定的rd一致熱平衡計(jì)算（1） 熱收入項(xiàng)風(fēng)口前碳燃燒放出的熱量：qc=9800*313.291=3.070252gj直接還原c氧化成co qcd=9800*(89.600+9.019)=0.966間接還原co：qico=(143.5076+173.5433)*12650

16、=4.010間接還原h(huán)2：qih2=10800*32.12093=0.346906熱風(fēng)帶入物理熱：q=1354.688*（1.437438*1056-10800*0.0175）=1.800292c風(fēng)=0.21*（1-0.0175）*1.486+0.79*（1-0.0175）*1.418+0.0175*1.727=1.437438成渣熱：1130*42.09*0.0028=133.1728*10-6爐料帶入的物理熱：0q入=10.13544（2） 熱支出項(xiàng)鐵氧化物分解耗熱：=6.442314fesi=329*55.85/71.85*(474.21*0.0102+68*0.0096+0.2*(17

17、25.74*0.1562+49.02*0.0043)=0.01520199fe2o3=2370*111.7/159.7*(1725.74*0.5747+42.09*0.9241) =1.708518feo=4990*945.61=4.718594硅：=31360*0.52*10=0.163072錳：=7015*0.142*10=0.0099613磷：=36000*0.282*10=0.101520總=6.716868脫硫：8300*509*0.008=0.0337976直還：=2890*0.45*（10*94.561-20+22960*10*0.52+4877*10*0.142+26520*1

18、0*0.282）=1.404859545碳酸鹽分解=（4040+0.5*3770）*49.02*0.0033=0.000958噴吹燃料分解=68*（1005+（331+13440）*0.018）=0.085195704熔渣帶走熱焓=509*1780=0.906020鐵水帶走熱焓=1000*1240=1.240000爐頂煤氣帶走熱焓=1867.81198*1.3913685*209+32.12093*1.519*209=0.5533497水分蒸發(fā)：2450*（49.02*0.028+474.21*0.042）+1.244*（49.02*0.028+474.21*0.042）*1.519*209=

19、0.06056688c煤氣=1.301*0.0239+1.786*0.1697+1.311*（0.5643+0.2421）=1.3913685高爐煤氣熱值=1868.723*（12650*0.2421+10800*0.0239）未燃燒碳熱值=33390*（10*4.473+16.6*0.20156）冷卻帶走熱=0.681891項(xiàng)目gj/t%熱收入項(xiàng)：風(fēng)口前碳燃燒放出的熱量3.07025230.12%直接還原中c氧化成co放出的熱量0.9669.48%間接還原中co氧化成co2放出的熱量4.0139.34%間接還原中h2氧化成h2o放出的熱量0.3469063.40%熱風(fēng)帶入的熱量1.80029

20、217.66%總熱收入10.19345100.00%熱支出項(xiàng)：氧化物分解耗熱6.71686765.89%脫硫耗熱0.0337980.33%碳酸鹽分解耗熱0.0009580.01%爐渣的焓0.906028.89%鐵水的焓1.2412.16%煤氣的焓0.553355.43%爐料水分蒸發(fā)耗熱0.0605670.59%冷卻水0.6818916.69%總熱支出10.19345100.00%有效熱能利用系數(shù)：q有=10.19345-（0.55335+0.060567+0.681891）=8.897642=8.897642/10.19345=87.29%碳素?zé)崮芾孟禂?shù)：=0.2932*0.07068*41.21%=0.58447228區(qū)域熱平衡熱收入項(xiàng)：風(fēng)口前碳素=3.070252熱風(fēng)帶入=1.800292中溫區(qū)=1.360058+0.6732759q焦=（474.21-16.6*20.156/85.13）*1.507*950=0.6732759q礦=（1767.83-16.6*（1-20.156/85.13）-32/44.8*（143.5076+173.5433+30.388）*0.95*950=