【文章內(nèi)容簡介】 d herself making the assistant bring almost everything in the window before finally buying the dress she had first asked for.Lesson58 A blessing in disguise? 是因禍得福嗎？The tiny village of Frinley is said to possess a 39。cursed tree39。. Because the tree was mentioned in a newspaper, the number of visitors to Frinley has now increased. The tree was planted near a church fifty years ago, but it is only in recent years that it has gained an evil reputation. It is said that if anyone touches the tree, he will have bad luck。 if he picks a leaf, he will die. Many villagers believe that the tree has already claimed a number of victims. The vicar has been asked to have the tree cut down, but so far he has refused. He has pointed out that the tree is a useful source of ine as tourists have been ing from all parts of the country to see it. In spite of all that has been said, the touristshave been picking leaves and cutting their names on the treetrunk. So far, not one of them has been struck down by sudden death!Lesson59 In or out ？ 進來還是出去？Our dog, Rex, used to sit outside our front gate and bark. Every time he wanted to e into the garden he would bark until someone opened the gate. As the neighbours plained of the noise, my husband spent weeks training him to press his paw on the latch to let himself in. Rex soon became an expert at opening the gate. However, when I was going out shopping last week, I noticed him in the garden near the gate. This time he was barking so that someone would let him out ! Since then, he has developed another bad habit. As soon as he opens the gate from the outside, he es into the garden and waits until the gate shuts. Then he sits and barks until someone lets him out. After this he immediately lets himself in and begins barking again. Yesterday my husband removed the gate and Rex got so annoyed we have not seen him since. Lesson60 The future 卜算未來At a village fair, I decided to visit a fortuneteller called Madam Bellinsky. I went into her tent and she told me to sit down. After I had given her some money, she looked into a crystal ball and said: 39。A relation of yours is ing to see you. She will be arriving this evening and intends to stay for a few days. The moment you leave this tent, you will get a big surprise. A woman you know well will rush towards you. She will speak to you and then she will lead you away from this place. That is all.39。 As soon as I went outside, I forgot all about Madam Bellinsky because my wife hurried towards me. 39。Where have you been hiding ?39。 she asked impatiently. 39。Your sister will be here in less than an hour and we must be at the station to meet her. We are late already.39。 As she walked away, I followed her out of the fair. Lesson61 Trouble with the Hubble 哈勃望遠鏡的困境In future, astronauts will be required to descend from a spaceship while it is still in space and富源縣老廠宏發(fā)水泥廠2000t/d熟料水泥生產(chǎn)線工程節(jié)能專篇1 項目概況 項目名稱富源縣老廠宏發(fā)水泥廠2000t/d熟料水泥生產(chǎn)線工程（帶4000kW純低溫余熱發(fā)電）項目。 建設地點云南省曲靖市富源縣老廠宏發(fā)水泥廠2000t/d熟料水泥生產(chǎn)線工程建設場地位于富源縣老廠鄉(xiāng)，距離富源縣城106km，距昆明市304 km，距貴州興義70km，距貴州盤縣140km， ha，交通運輸方便。廠區(qū)附近有完善的供電、供水設施。 建設規(guī)模、范圍、產(chǎn)品方案建設規(guī)模：采用新型干法預分解窯生產(chǎn)工藝，新建設一條日產(chǎn)2000t熟料水泥生產(chǎn)線，帶4000kW純低溫余熱發(fā)電系統(tǒng)。產(chǎn)品方案：熟料2000噸/日，窯年運轉(zhuǎn)率85%，水泥78萬噸/年。產(chǎn)品品種：PO ，產(chǎn)品檢驗采用國家水泥新標準。年發(fā)電量為2232104kWh，年供電量為2053104kWh。建設范圍：從石灰石破碎至水泥出廠的全部生產(chǎn)設施；4000kW純低溫余熱發(fā)電系統(tǒng)。輔助生產(chǎn)設施：如機修、化驗室、辦公樓等，以及生活福利設施，利用企業(yè)原有設施。 建設單位及概況富源縣老廠宏發(fā)水泥廠, 始建于1992年， 1993年投產(chǎn)，為一條機立窯生產(chǎn)線，設計規(guī)模8萬噸/年，現(xiàn)實際能力達9萬噸/年，10m機立窯一臺，、。是富源縣管理水平較高，產(chǎn)品質(zhì)量較好的私營企業(yè)，為富源縣的經(jīng)濟發(fā)展作出了重要貢獻。本工程擬在現(xiàn)有廠址內(nèi)新建一條2000t/d熟料新型干法生產(chǎn)線（新線）取代立窯生產(chǎn)線（老線）。老線可以利用的條件主要是：建設場地、礦山開采及運輸、工廠現(xiàn)有的生活設施及輔助生產(chǎn)設施（如機修、化驗室、辦公樓等）。本廠擁有一批熟練工人、管理干部、專業(yè)技術(shù)人員及營銷人員隊伍，是新建廠的有利條件。云南省政府辦公廳下發(fā)的《關(guān)于做好淘汰落后水泥生產(chǎn)能力工作的通知》，明確提出了云南省“十一五”期間，淘汰落后水泥生產(chǎn)能力的具體目標、重點、進度和政策措施。到2010年，全省完成淘汰落后水泥生產(chǎn)能力不少于1064萬t。具體為：2007年453萬t，2008年411萬t，2009年不少于139萬t，2010年不少于61萬t。所確定的到2010年全省淘汰落后水泥生產(chǎn)能力1064萬t的目標，大大超過國家下達的700萬t的任務指標。富源縣老廠宏發(fā)水泥廠根據(jù)我國和我省建材工業(yè)發(fā)展戰(zhàn)略的要求，為切實貫徹中央關(guān)于經(jīng)濟結(jié)構(gòu)調(diào)整的精神，堅持“控制總量、調(diào)整結(jié)構(gòu)、淘汰落后”的建材工業(yè)發(fā)展方針和提高旋窯水泥比重的產(chǎn)業(yè)政策，實現(xiàn)水泥工業(yè)增長方式的轉(zhuǎn)變和可持續(xù)發(fā)展，為了適應曲靖市及富源縣的城鎮(zhèn)基礎設施建設、旅游區(qū)開發(fā)建設的需要，為謀求長遠發(fā)展，使產(chǎn)品上檔次、上規(guī)模，富源縣老廠宏發(fā)公司從企業(yè)自身條件和資金籌措能力等具體情況出發(fā)，因地制宜的綜合考慮，決定抓住西部大開發(fā)戰(zhàn)略的機遇，充分利用本地充足的資源，建設2000t/d新型干法熟料水泥生產(chǎn)線。本項目的實施，能有效地填補市場缺口，加快企業(yè)技術(shù)進步和產(chǎn)業(yè)升級，加大對落后小立窯水泥廠的淘汰力度，實現(xiàn)顯著的企業(yè)效益和社會效益。 主要經(jīng)濟技術(shù)指標 詳見表11。表11 全廠主要技術(shù)經(jīng)濟指標匯總表序號項 目單 位指標或數(shù)值備 注1工廠建設規(guī)模熟料噸/天2000 水泥噸/年78萬 2生產(chǎn)方法新型干法窯外分解3主要工藝設備石灰石破碎機1臺原料磨1臺MPS3424立式磨回轉(zhuǎn)窯1臺60m篦式冷卻機1臺TC1164煤磨1臺5+3m水泥磨1臺13m4設備重量及裝機容量設備重量t4660裝機容量kW18320計算負荷kW14154年生產(chǎn)用電量kWh72501045用水指標日耗水量m3/d循環(huán)水利用率%966總平面圖指標 廠區(qū)占地面積ha建、構(gòu)筑物占地面積m29879道路、廣場占地面積m2107757總 投 資萬元固定資產(chǎn)投資萬元其中：建設期利息萬元鋪底流動資金萬元固定資產(chǎn)投資構(gòu)成建筑工程萬元設 備萬元安裝工程萬元其它費用萬元8定員及效率生產(chǎn)工人人152 管理人員人 29合 計人1819勞動生產(chǎn)率全員噸/()4144生產(chǎn)工人噸/()493410噸水泥指標噸水泥建設投資元/噸噸水泥設備重量kg/t噸水泥裝機容量kW/t11能耗指標單位熟料熱耗kJ/kg3469（折為3111）噸熟料電耗kWh/t74噸水泥電耗kWh/t9612經(jīng)濟效益財務內(nèi)部收益率(稅前)%財務內(nèi)部收益率(稅后)%投資回收期（稅前）年含建設期投資回收期（稅后）年含建設期銀行貸款償還期年含建設期投資利潤率%投資利稅率%年銷售收入萬元20250 年銷售稅金萬元1652計算期平均年利潤萬元4788計算期平均年所得稅萬元1580計算期平均單位產(chǎn)品成本元/噸計算期平均 工藝流程1．6．1 原燃料的預均化 （1）石灰石：%，質(zhì)量較為穩(wěn)定，屬生產(chǎn)水泥的優(yōu)質(zhì)石灰石原料，且開采條件好，礦層走向均勻、穩(wěn)定，成份變化較小，為降低投資在設計中不考慮石灰石預均化。采用二座Φ1536米儲存庫多點下料簡易搭配方式進行均化。（2）粘土：該廠粘土質(zhì)原料由一個礦點供給，質(zhì)量較為穩(wěn)定，成份變化較小，為節(jié)約投資，設計中只考慮對粘土采取簡易預均化處理。（3）無煙煤：燒成用無煙煤可供給的礦點較多，成分及熱值難以保證，為縮小偏差，保證燒成用煤質(zhì)量的穩(wěn)定性及均勻性，節(jié)約投資，故設計中考慮對無煙煤采取簡易預均化措施。1．6．2 石灰石破碎、均化及輸送汽車或裝載機將石灰石原礦運至破碎系統(tǒng)受礦倉內(nèi)，倉下調(diào)速式重型板式給料機將原礦喂入單段錘式破碎機內(nèi)破碎，成品碎石由皮帶輸送機、提升機送至儲存庫內(nèi)儲存。1．6．3 粘土及均化輸送粘土由皮帶輸送機送至粘土簡易預均化堆棚，均化后的粘土送至原料配料庫內(nèi)儲存。1．6．4 原料配料及輸送原料配料庫由1座Φ820米石灰石庫、2座Φ820米粘土庫、1座Φ820米鐵粉庫組成。庫底用電子皮帶秤按要求的配比準確計量配料后，經(jīng)皮帶輸送機、提升機送至原料磨。生料控制采用熒光分析儀和計算機自動配料系統(tǒng)，以保證出磨后生料質(zhì)量穩(wěn)定。1．6．5 生料粉磨配合好的原料送