年產(chǎn)20萬(wàn)噸礦渣粉項(xiàng)目建議書(編輯修改稿)

　

【文章內(nèi)容簡(jiǎn)介】 ment or has helped to set up special places where the can live is leading a busy life but she says: “Once I stop,it all es crowding in and I remember the chimps in ’s affacts me when I watch the wild say to myself,’Aren’t they lucky?’And then I think about small chimps in cages though they have done nothing you have seen that you can never fet…“ She has achieved everything she wanted to do:working with animals in their own environment,gaining a doctor’s degree and showing that women can live in the forest as men inspires those who want to cheer the achievements of women. WHY NOT CARRY ON HER WORK? I enjyed English ,biology,and chemistry at school,but which one should I choose to study at university ?i did not know the answer until one evening when I sat down at the puter to do some research on great women of China. By chance I came across an article about a doctor called Lin Qiaozhi, a specalist in women’s lived from 1901 to 1983 .It seemed that she had been very busy in her chosen career ,travling abored to study as well as writing books and of them caught my eye. It was a small book explaining how to keeping babies clean,healthy and free from did she write that?Who were the women that Lin Qiaozhi thought needed this advice?I looked carefully at the text and realize that it was intended for women in the if they had an emergency they could not reach a doctor. Suddenly it hit me how difficult it was for a woman to get medical training ata that was a generation when girls’ education was always placred decond to boys’.Was she so much cleverer than anyone else?Further reading made me realize that it was hard work and determination as well as her gentle nature that got her into medical made her succeed later on was the kindness and consideration she showed to all her was story after story of how Lin Qiaozhi, tired after a day’s work,went late at night to deliver a baby for a pool family who could not pay her. By now I could not wait to find out more about her . I discovered that Lin Qiaozhi had devoted her whole life to herpatiens and had chosen not to have a family of her she made sure that about 50,000 babies were safely this time I was very not study at medical college like Lin Qiaozhi and carry on her good work?It was still not too late for me to improve my studies,prepare for the university entrance examinations , and … ELIZABETH FRY When the Quaker Elizabeth married Joseph Fry,it seemed as if her life would be fortable and ,Elizabeth was not content with her easy life and her growing saw many poor people living near her and she wanted to help them. One day she was asked to visit a prison .At first the prison officers did not want to let her visit the women prisoners because they feared the prisoners would attack her,but Elizabeth was not realized that the prisoners behave badlly because they were treated like had no beds,clean clothes,food or child born in prison had to stay there and had no chance of an meant they would probably have to beg or steal when they grew up and then would return to the first thing Elizabeth did was to provide food,clean clothes and straw for she began a prison schoolfor the chilldren and taught the women to sew,knit and make goods to this way they able to make a little money for themselves and gain some lindnesshelped her gain the friendshipof prisoners and they began to try to improve their conditions for Elizabeth was asked to go to the leaders of Britain to discuss how to improve the conditions for prisoners。 Of course she did not do all the work on her Quaker women helped her and went around the country raising money for her people did not like her ideas and quarrelled with said that she should spend more time with her people said she enjoyed being famous ,her husband,Joseph,supported and encouraged her,so she continued working to help improve the lives of poor prisoners tillshe ideas did not disappear after her death and her work was remembered in 1947 when the Quakers were given the Noble Peace Prize. Unit 2 A pioneer for all people Although he is one of China’s1第一章 總 論 前 言高爐礦渣是高爐煉鐵生產(chǎn)過(guò)程中排放的工業(yè)廢渣，是以硅酸鈣為主的熔融物，經(jīng)水淬冷凝為粒狀物。其化學(xué)成份主要是 Si0CaO、A120Fe203 等，與水泥熟料一樣，具有潛在的水化活性，而活性的大小與化學(xué)成份及水淬產(chǎn)生的玻璃體含量有關(guān)。但其必須在堿性激發(fā)下才呈現(xiàn)活性。長(zhǎng)期以來(lái)，礦渣主要被水泥生產(chǎn)企業(yè)，尤其是立窯水泥生產(chǎn)企業(yè)作為加速水泥熟料中的游離鈣消解，降低水泥成本、增加水泥產(chǎn)量等目的，作為混合材來(lái)使用。目前，我國(guó)雖然在水泥生產(chǎn)總量上已躍屬世界第一位，但是大小水泥、立窯、回轉(zhuǎn)窯水泥比例嚴(yán)重失調(diào)，水泥結(jié)構(gòu)極不合理，水泥質(zhì)量的總體水平大大低于世界平均水平。因此，為了迅速改變這種狀況，國(guó)家有關(guān)部門決定對(duì)水泥工業(yè)結(jié)構(gòu)進(jìn)行大幅度的調(diào)整，大力實(shí)施“上大壓小”的政策，自 2022 年始，立窯水泥產(chǎn)量己減少了 1 億多噸，也就意味著混合材摻量減少 3000 多萬(wàn)噸，而其中大部分為礦渣則是不爭(zhēng)的事實(shí)。隨著高爐礦渣需求量的下降，使高爐礦渣的來(lái)源變得豐富。加之近年來(lái)鋼鐵行業(yè)發(fā)展迅速，也要為礦渣處理尋找新的出路。另一方面，由于礦渣與水泥熟料相比具有玻璃體含量高，易碎難磨的物理特性，和水泥熟料一起粉磨時(shí)，難以磨細(xì)，影響了其潛在活性的發(fā)揮。因此，目前世界上許多發(fā)達(dá)國(guó)家，興起了礦渣單獨(dú)粉磨的生產(chǎn)工藝，并取得了良好的使用效果。實(shí)驗(yàn)表明：只有將礦渣磨至比表面積350m2／kg 以上時(shí)，活性才能得到激發(fā)，且比表面積越高，活性越好，甚至可以超過(guò)水泥的活性。另外，礦渣微粉摻入混凝土后，可以降低混凝土集料(沙、石等)熱化反應(yīng)引the St Lawrence River toward the Gulf of St Lawrence and down to the distant east coast, the cousins dreamed of French restaurants and red maple leaves. Iqaluit – the frozen town The reporter, Beth Allen, arrived in a northern munity called Iqaluit in Nunavut. Nunavut was created in 1999 as a special area for Inuit people. Its name means “Our Land” in their language. It is in the farthest northeastern area of Canada, north or the Arctic Circle, and is very cold – the average witer temperature in Nunavut is 35 degrees below zero. Beth said, “ I knew it would be could in January, but not this cold! Maybe there is a dog sled that can take me into town.” The quiet man who had been on the plane with her said, “I’ll take you into town, but I don’t hace a dog sled. Most people only use the dogs for petitions, why are you visiting Iqaluit?” Beth answered, “ I’m writing a story for my newspaper about Iqaluit – we’d like to advertise it as a holiday place, but I think it’s too cold.” The man laughed. “My name is Simon and I am Inuit,” he said. “I think it’s too far north here for holidays but more and more tourists are i