【正文】 、GG、EVSPCNMFCNKSV、DD等八種PAT、PS、PAS等六種停留時(shí)間（s）3～43～43～62～52～4取t=4s，w=8m/s，則H=wt=48第七章 生產(chǎn)質(zhì)量控制系統(tǒng)與說(shuō)說(shuō)明生料調(diào)配站生料磨喂料倉(cāng)均化庫(kù)預(yù)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(zhuǎn)窯煤粉倉(cāng)原煤煤磨熟料庫(kù)石膏混合材水泥調(diào)配庫(kù)水泥磨水泥庫(kù)散裝水泥袋裝水泥圖71 生產(chǎn)質(zhì)量控制網(wǎng)點(diǎn)圖表71 全廠生產(chǎn)質(zhì)量控制表控制項(xiàng)目取樣地點(diǎn)取樣頻度和取樣量試驗(yàn)頻度樣品處理及試樣量實(shí)驗(yàn)項(xiàng)目控制指標(biāo)備注進(jìn)廠石灰石皮帶機(jī)下料口10min/次，3kg/次破碎、縮分制樣100g，每小時(shí)混合樣每班縮分為一個(gè)樣30g，預(yù)均化堆場(chǎng),每堆一個(gè)樣20g測(cè)定CaO測(cè)定K2ONa2O全分析CaO≥%K2O+Na2O%K2O+Na2O%CaO≥%合格率85%,堆場(chǎng)5天用量進(jìn)廠黏土堆場(chǎng)1次/班，100g/次每月合并為一個(gè)樣縮分、烘干為150g全分析水分SiO2%%合格率100%，堆場(chǎng)10天用量進(jìn)廠銅礦渣火車或堆場(chǎng)1次/批，2kg/次每批一個(gè)樣，每旬合并一個(gè)樣縮分、烘干為100g全分析水分AL2O3＜%Fe2O3%水分2%堆場(chǎng)30天用量，同一供貨點(diǎn)10個(gè)車皮一個(gè)樣進(jìn)廠煤火車或堆場(chǎng)1次/批，2kg/次每批一個(gè)樣，每旬合并為一個(gè)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(chǎng)10天用量進(jìn)廠石膏火車或堆場(chǎng)1次/批，2kg/次每批合并為一個(gè)樣縮分為150g水分SO3水分%粒度600mmSO3%堆場(chǎng)30天用量進(jìn)廠礦渣堆場(chǎng)1次/班，100g/次每月合并為一個(gè)樣，縮分、烘干為150g全分析水分AL2O3%水分3%合格率100%，堆場(chǎng)10天用量煤粉入倉(cāng)前1次/4h，150g/次4h一個(gè)樣150g，每旬合并為一個(gè)樣水分、細(xì)度、工業(yè)分析、熱值、灰粉、全分析細(xì)度:80μm篩余7%。水分1%低熱值≥23258kJ/kg合格率70%，煤粉倉(cāng)4小時(shí)用量出磨生料磨機(jī)出口1次/2h，250g/次2個(gè)小時(shí)一個(gè)樣250g,X熒光分析自動(dòng)處理水分、細(xì)度三個(gè)率值、四個(gè)化學(xué)成分水分1%。細(xì)度80μm篩余10%合格率75%；進(jìn)出磨、細(xì)粉的水分、細(xì)度不定期檢查調(diào)配生料生料庫(kù)自動(dòng)取樣，300g/次每40min一個(gè)樣，每班合并一個(gè)樣X(jué)熒光分析自動(dòng)處理150g全分析水分細(xì)度SO3KH177。SM177。IM177。水分1%。80μm篩余10%SO3%指標(biāo)熟料率值；水分根據(jù)需要測(cè)定；均化庫(kù)2天用量入1級(jí)筒生料入1級(jí)筒前A或B筒，1次/h，200g/次每4小時(shí)一個(gè)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(xì)度各級(jí)旋風(fēng)筒出口，原料燒失量，堿含量不定期抽查；水分測(cè)定預(yù)熱器飛灰；電收塵灰；增濕塔灰出口標(biāo)定時(shí)做各150g全分析燒失量出5級(jí)筒生料5級(jí)筒出口入窯管道開(kāi)始投料1次/2h，200g/次；正常后，1次/4h，200g/次2小時(shí)一個(gè)樣4小時(shí)一個(gè)樣50g50g分解率分解率＞95%熟料熟料庫(kù)頂輸送機(jī)1次/h，1㎏/次隨時(shí)監(jiān)視每小時(shí)、每班合并為一個(gè)樣，每天合并一個(gè)樣自動(dòng)通過(guò)巖相2個(gè)/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(jié)時(shí)間、安定性、強(qiáng)度立升重＞1300g/LfCaO＜1%；按國(guó)家標(biāo)準(zhǔn)進(jìn)行試驗(yàn)合格率100%；熟料庫(kù)5天用量、粒度不定期檢查；fCaO合格率75%水泥入水泥庫(kù)空氣輸送斜槽1次/2h，100g/次分別2小時(shí)一個(gè)樣，每天合并一個(gè)樣150g20g～6㎏水分、細(xì)度SO3安定性、凝結(jié)時(shí)間、強(qiáng)度比表面積＞1300cm2/g(水分監(jiān)視)SO3=177。%按國(guó)家標(biāo)準(zhǔn)進(jìn)行試驗(yàn)合格率比表面積與SO375%合格率100%。水泥磨系統(tǒng)各點(diǎn)細(xì)度不定期檢查出廠水泥各編號(hào)水泥袋裝或散裝每1000t一個(gè)編號(hào)，每100袋取一樣，每次600g，取20袋每個(gè)編號(hào)等量留樣每編號(hào)合并一個(gè)樣，每月合并一個(gè)樣混合均勻12㎏，混合均勻縮分150g細(xì)度、比表面積、安定性、強(qiáng)度、凝結(jié)時(shí)間全分析國(guó)家標(biāo)準(zhǔn)普通硅酸鹽525號(hào)國(guó)家標(biāo)準(zhǔn)普通硅酸鹽425號(hào)國(guó)家標(biāo)準(zhǔn)325復(fù)合硅酸鹽水泥等量留樣備查參考文獻(xiàn)[1] (GB502951999)[M].北京：中國(guó)計(jì)劃出版社，1999 [2] 嚴(yán)生，常捷，[M].北京：中國(guó)建材工業(yè)出版社，2007[3] 熊會(huì)思，[M].北京：中國(guó)建材工業(yè)出版社，2007[4] [M]. 北京：中國(guó)建材工業(yè)出版，2006[5] [M].北京：中國(guó)建材工業(yè)出版社，1995[6] [M].武漢：武漢理工業(yè)大學(xué)出版社，1993[7] [M]. 北京：中國(guó)建筑工業(yè)出版社，1997[8] [M]. 武漢：武漢理工大學(xué)出版社，1992[9] [M].北京：化學(xué)工業(yè)出版社,2005[10][M].武漢：武漢理工大學(xué)出版社，1991[11][M]. 武漢：武漢理工大學(xué)出版社,2008[12][M].武漢：武漢理工大學(xué)出版社,2009[13]李斌懷,[M]. 武漢：武漢理工大學(xué)出版社,2006[14]陶珍東,[M].北京：化學(xué)工業(yè)出版社,2003[15][M].北京：化學(xué)工業(yè)出版社,2005[16]洛陽(yáng)黃河同力水泥有限責(zé)任公司5000t/ [17]李建國(guó). 5000t/d級(jí)新型干法生產(chǎn)線—中國(guó)水泥工業(yè)的中堅(jiān)規(guī)模[J].中國(guó)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(chǎn)線工程概覽[J].水泥工程，2005，(1)：1~7[19]. 武漢：武漢工業(yè)大學(xué)出版,1992[20]. 武漢：中國(guó)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