【正文】 、GG、EVSPCNMFCNKSV、DD等八種PAT、PS、PAS等六種停留時間（s）3～43～43～62～52～4取t=4s，w=8m/s，則H=wt=48第七章 生產質量控制系統(tǒng)與說說明生料調配站生料磨喂料倉均化庫預熱器分解爐石灰石灰石黏土石灰石灰渣銅礦渣 渣渣渣回轉窯煤粉倉原煤煤磨熟料庫石膏混合材水泥調配庫水泥磨水泥庫散裝水泥袋裝水泥圖71 生產質量控制網點圖表71 全廠生產質量控制表控制項目取樣地點取樣頻度和取樣量試驗頻度樣品處理及試樣量實驗項目控制指標備注進廠石灰石皮帶機下料口10min/次，3kg/次破碎、縮分制樣100g，每小時混合樣每班縮分為一個樣30g，預均化堆場,每堆一個樣20g測定CaO測定K2ONa2O全分析CaO≥%K2O+Na2O%K2O+Na2O%CaO≥%合格率85%,堆場5天用量進廠黏土堆場1次/班，100g/次每月合并為一個樣縮分、烘干為150g全分析水分SiO2%%合格率100%，堆場10天用量進廠銅礦渣火車或堆場1次/批，2kg/次每批一個樣，每旬合并一個樣縮分、烘干為100g全分析水分AL2O3＜%Fe2O3%水分2%堆場30天用量，同一供貨點10個車皮一個樣進廠煤火車或堆場1次/批，2kg/次每批一個樣，每旬合并為一個樣縮分、烘干為100g水分灰分熱值水分%粒度50mm原煤灰分%低熱值≥23258kJ/kg堆場10天用量進廠石膏火車或堆場1次/批，2kg/次每批合并為一個樣縮分為150g水分SO3水分%粒度600mmSO3%堆場30天用量進廠礦渣堆場1次/班，100g/次每月合并為一個樣，縮分、烘干為150g全分析水分AL2O3%水分3%合格率100%，堆場10天用量煤粉入倉前1次/4h，150g/次4h一個樣150g，每旬合并為一個樣水分、細度、工業(yè)分析、熱值、灰粉、全分析細度:80μm篩余7%。水分1%低熱值≥23258kJ/kg合格率70%，煤粉倉4小時用量出磨生料磨機出口1次/2h，250g/次2個小時一個樣250g,X熒光分析自動處理水分、細度三個率值、四個化學成分水分1%。細度80μm篩余10%合格率75%；進出磨、細粉的水分、細度不定期檢查調配生料生料庫自動取樣，300g/次每40min一個樣，每班合并一個樣X熒光分析自動處理150g全分析水分細度SO3KH177。SM177。IM177。水分1%。80μm篩余10%SO3%指標熟料率值；水分根據需要測定；均化庫2天用量入1級筒生料入1級筒前A或B筒，1次/h，200g/次每4小時一個樣，各班合并為一樣縮分150g送X熒光分析室，150g全分析水分；細度各級旋風筒出口，原料燒失量，堿含量不定期抽查；水分測定預熱器飛灰；電收塵灰；增濕塔灰出口標定時做各150g全分析燒失量出5級筒生料5級筒出口入窯管道開始投料1次/2h，200g/次；正常后，1次/4h，200g/次2小時一個樣4小時一個樣50g50g分解率分解率＞95%熟料熟料庫頂輸送機1次/h，1㎏/次隨時監(jiān)視每小時、每班合并為一個樣，每天合并一個樣自動通過巖相2個/次；X熒光分析室20g，加石膏粉磨巖相分析、fCaO、全分析、比表面積，凝結時間、安定性、強度立升重＞1300g/LfCaO＜1%；按國家標準進行試驗合格率100%；熟料庫5天用量、粒度不定期檢查；fCaO合格率75%水泥入水泥庫空氣輸送斜槽1次/2h，100g/次分別2小時一個樣，每天合并一個樣150g20g～6㎏水分、細度SO3安定性、凝結時間、強度比表面積＞1300cm2/g(水分監(jiān)視)SO3=177。%按國家標準進行試驗合格率比表面積與SO375%合格率100%。水泥磨系統(tǒng)各點細度不定期檢查出廠水泥各編號水泥袋裝或散裝每1000t一個編號，每100袋取一樣，每次600g，取20袋每個編號等量留樣每編號合并一個樣，每月合并一個樣混合均勻12㎏，混合均勻縮分150g細度、比表面積、安定性、強度、凝結時間全分析國家標準普通硅酸鹽525號國家標準普通硅酸鹽425號國家標準325復合硅酸鹽水泥等量留樣備查參考文獻[1] (GB502951999)[M].北京：中國計劃出版社，1999 [2] 嚴生，常捷，[M].北京：中國建材工業(yè)出版社，2007[3] 熊會思，[M].北京：中國建材工業(yè)出版社，2007[4] [M]. 北京：中國建材工業(yè)出版，2006[5] [M].北京：中國建材工業(yè)出版社，1995[6] [M].武漢：武漢理工業(yè)大學出版社，1993[7] [M]. 北京：中國建筑工業(yè)出版社，1997[8] [M]. 武漢：武漢理工大學出版社，1992[9] [M].北京：化學工業(yè)出版社,2005[10][M].武漢：武漢理工大學出版社，1991[11][M]. 武漢：武漢理工大學出版社,2008[12][M].武漢：武漢理工大學出版社,2009[13]李斌懷,[M]. 武漢：武漢理工大學出版社,2006[14]陶珍東,[M].北京：化學工業(yè)出版社,2003[15][M].北京：化學工業(yè)出版社,2005[16]洛陽黃河同力水泥有限責任公司5000t/ [17]李建國. 5000t/d級新型干法生產線—中國水泥工業(yè)的中堅規(guī)模[J].中國水泥，2005，(5):18~21[18]夏之云，季尚行，夏暉. 安徽銅陵海螺水泥有限公司210000t/d熟料生產線工程概覽[J].水泥工程，2005，(1)：1~7[19]. 武漢：武漢工業(yè)大學出版,1992[20]. 武漢：中國建材工業(yè)出版社,2004外文資料翻譯AntiCrack Performance of LowHeatPortland Cement ConcreteAbstract: The properties of lowheat Portland cement concrete(LHC) were studied in detail. The experimental results show that the LHC concrete has characteristics of a higher physical mechanical behavior, deformation and durability. Compared with moderateheat Portland cement(MHC), the average hydration heat of LHC concrete is reduced by about %. Under same mixing proportion, the adiabatic temperature rise of LHC concrete was reduced by 2 ℃3℃,and the limits tension of LHC concrete was increased by 1010615106 than that of MHC. Moreover, it is indicated that LHC concrete has a better anticrack behavior than MHC concrete.Key words: lowheat portland cement。 mass concrete。 high crack resistance。 moderateheat portland cement1 IntroductionThe investigation on crack of mass concrete is a hot problem to which attention has been paid for a long time. The cracks of the concrete are formed by multifactors, but they are mainly caused by thermal displacements in mass concrete[13]. So the key technology on mass concrete is how to reduce thermal displacements and enhance the crack resistance of concrete.As well known, the hydration heat of bonding materials is the main reason that results in the temperature difference between outside and inside of mass concrete[4,5]. In order to reduce the inner temperature of hydroelectric concrete, several methods have been proposed in mix proportion design. These include using moderateheat portland cement (MHC), reducing the content of cement, and increasing the Portland cement (OPC), MHC has advantages such as low heat of hydration, high growth rate of longterm strength, etc[6,7]. So it is more reasonable to use MHC in application of mass concrete.Lowheat portland cement (LHC), namely highbelite cement is currently attracting a great deal of interest worldwide. This is largely due to its lower energy consumption and CO2 emission in manufacture than conventional Portland cements. LHC has a lot of noticeable properties, such as low heat of hydration excellent durability, etc, so the further study continues to be important[810]. The longterm strength of C2S can approach to or even exceed that of C3S[11]. In addition, C2S has a series of characteristics superior to C3S. These include the low content of CaO, low hydration heat, good toughness, pact hydration products, excellent resistances to chemical corrosion, little dry shrinkage, etc[12,13].For hydroelectric concrete , the design requirements have some characteristics, such as long design age, low design strength, low hydration temperature rise, and low temperature gradient[14]. All these requirements agree with the characteristics of LHC. Furthermore, LHC has a high hydration activity at later ages, the effect of which can improve the inner microcrack. Based on abovementioned analyses, the properties of lowheat Portland cement concrete were studied in detail in this paper. Compared with th