進(jìn)口礦預(yù)脫硅試驗(yàn)報(bào)告

進(jìn)口礦預(yù)脫硅試驗(yàn)爭(zhēng)論報(bào)告求提高脫硅礦漿硅量指數(shù)。2、進(jìn)口礦預(yù)脫硅現(xiàn)狀及試驗(yàn)條件確定。100NK在130-150g/l之間波動(dòng)，進(jìn)口礦的種類是由兩種或者兩種以上的礦石組成。所以需要確定溫度、時(shí)間、礦石種類、溶液NK、鈣比等因素對(duì)硅效果。圖1、目前現(xiàn)場(chǎng)預(yù)脫硅流程現(xiàn)狀1#脫硅槽2#脫硅槽3#脫硅槽85℃78℃73℃9.3m8.5m1.0m磨機(jī)出進(jìn)口礦漿加熱套管磨機(jī)出進(jìn)口礦漿加熱套管6#脫硅槽90℃9.5m5#脫硅槽87℃10.6m送后加礦槽倒槽泵隔離圖2圖2、進(jìn)口礦漿硅量指數(shù)硅量指數(shù)1 3 5 7 9 11 13 15 17 19 21 23 25 27 2910080數(shù)指60量硅40200統(tǒng)計(jì)時(shí)間3統(tǒng)計(jì)時(shí)間3月11計(jì)算脫硅時(shí)間6.913月125.963月159.99310.1909.2874.582006.186#槽液位溫度5#槽液位溫度1#槽液位溫度2#槽液位溫度3#槽液位溫度9.599210889.5846.1792.509.89410.1899.1853.57300試驗(yàn)條件：18℃、8℃、9℃、脫硅時(shí)間：4h、6h、8h、礦石種類：現(xiàn)場(chǎng)礦漿、西加礦、冰潭礦4、C/S0、0.25、濃度NK：130g/、160g/l3、試驗(yàn)數(shù)據(jù)與分析正交試驗(yàn)數(shù)據(jù)表1 進(jìn)口礦脫硅正交試驗(yàn)數(shù)據(jù)預(yù)脫硅條件 液相 固相NK間度16004現(xiàn)場(chǎng)礦漿80184.0116.441520.7661.30089.5744.1513006冰潭礦95130.473.021100.6640.343212.8936.721300.24冰潭礦95129.292.101110.8290.553166.5539.5713008西加礦80136.473.671160.6350.702206.9043.371600.24西加礦87166.4109.861360.8080.740148.4639.731600.28冰潭礦80154.498.351290.7620.702140.1037.2016006冰潭礦87158.0105.591380.7650.727145.2435.591300.28現(xiàn)場(chǎng)礦漿87130.476.961110.6930.356216.1847.351600.26現(xiàn)場(chǎng)礦漿95167.0122.041340.910.669182.4243.851300.26西加礦80137.075.981150.660.517146.9638.9816008西加礦95165.0110.521380.800.495223.2743.0413004現(xiàn)場(chǎng)礦漿8713781.911160.7060.495116.0243.59濃度C/S濃度C/S時(shí)礦石溫NTAONKRPSiO2A/S脫硅率各因素對(duì)硅量指數(shù)的影響。圖3、濃度、C/S、時(shí)間、礦石、溫度對(duì)硅量指數(shù)的影響圖4、各因素對(duì)硅量指數(shù)影響程度從圖34中可以看到，隨溶液NK濃度上升，硅量指數(shù)呈緩慢下降趨勢(shì)，C/S高。各因素對(duì)脫硅率的影響圖5、濃度、C/S、時(shí)間、礦石、溫度對(duì)脫硅率的影響圖6、各因素對(duì)脫硅率影響程度從圖5、圖6中可以看到，礦石種類對(duì)脫硅率的影響較大，而其4、結(jié)論⑴脫硅溫度和脫硅時(shí)間是影響硅量指數(shù)主要因素。(2)場(chǎng)條件的差異，建議在目前的NK濃度下，脫硅溫度在90℃以上、6h150以上。附：類別SiO類別SiOFeOALOA/SCaOTiOKONaOAALORSiO22323222232西加進(jìn)口礦12.6916.5944.613.520.080.760.050.1436.503.94冰潭進(jìn)口礦13.8614.5545.673.300.070.820.250.1636.385.721#現(xiàn)場(chǎng)礦漿11.1014.2246.424.180.190.9736.803.302#現(xiàn)場(chǎng)礦漿11.6914.6945.753.910.170.853#現(xiàn)場(chǎng)礦漿11.2014.3045.353.890.180.87表2、調(diào)配礦漿及堿液液相成分類別類別NTAONKRPSiO21#調(diào)配礦漿201.7100.81610.633.722#調(diào)配礦漿154.676.451310.583.991#堿液157.676.551320.581.042#堿液184.892.751630.571.36NKNKC/S預(yù)脫硅條件時(shí)固相成分間礦石溫度SiO2FeOALOA/SCaOMgO酸溶硅232316004現(xiàn)場(chǎng)礦漿8011.7113.6143.203.690.440.455.1713006冰潭礦9513.4813.2639.452.932.800.694.951300.24冰潭礦9513.0913.1242.323.230.730.455.1813008西加礦8011.6914.6542.233.610.720.485.071600.24西加礦8712.6614.7538.483.042.750.745.031600.28冰潭礦8013.0112.8540.223.092.870.574.8416006冰潭礦8713.3213.5641.703.130.630.534.741300.28現(xiàn)場(chǎng)礦漿8711.7013.1342.193.611.970.505.541600.26現(xiàn)場(chǎng)礦漿9513.5712.7338.472.832.650.955.951300.26西