【正文】 4）、主樓采用NFLG20M2脈沖式除塵器,可有效的收集過渡料倉和主機(jī)產(chǎn)生的粉塵,確保樓內(nèi)的空氣清潔.、水路、氣路系統(tǒng)1）、水路、氣路系統(tǒng)均采用鍍鋅鋼管制作.2）、水路由水泵輸水管道樓上儲(chǔ)水箱卸水碟閥組成3）、水泵和氣動(dòng)水碟閥均采用國內(nèi)知名品牌,以保證系統(tǒng)的可靠.4）、氣路由空壓機(jī)，管路附件，儲(chǔ)氣筒、三聯(lián)件，各種接頭、尼龍管、電磁閥、氣缸等組成。＊ 第二層平臺安裝在攪拌機(jī)平臺上，用于安裝過渡料倉、水泥秤、粉煤灰秤及外加劑秤等，立柱支撐采用H型型鋼（200x150）制成，剛性大。 水泥計(jì)量單元大于滿量程的50%以上，動(dòng)態(tài)精度177。＊ 電纜采用福建南平電纜廠太陽牌產(chǎn)品。＊ 骨料、水配料能粗稱、精稱。216。216。 —各執(zhí)行單元接線到強(qiáng)電柜216。從系統(tǒng)組成而言，該套電控系統(tǒng)具有穩(wěn)定性好，功能強(qiáng)大，操作簡便。卸料門采用液壓系統(tǒng)驅(qū)動(dòng)形式，與傳統(tǒng)的氣動(dòng)形式相比，具有結(jié)構(gòu)緊湊、動(dòng)作平穩(wěn)、開門定位準(zhǔn)確、能手動(dòng)開關(guān)門等特點(diǎn)。襯板的使用壽命可達(dá)40000罐次。葉片為高強(qiáng)度抗沖耐磨鑄鐵。對于普通混凝土只需20s可達(dá)到均質(zhì)攪拌，對于高性能混凝土只需40s可達(dá)到均質(zhì)攪拌。2)各無紡布軟接以保證各秤的靈活。1)用專業(yè)廠家定點(diǎn)制造的迷宮式密封的皮帶機(jī)專用托輥,可極大地減少皮帶在運(yùn)行時(shí)的阻力,延長托輥的使用壽命。在計(jì)量斗和儲(chǔ)料斗側(cè)壁處設(shè)有振動(dòng)器，防止骨料粘附。、攪拌主機(jī)根據(jù)建設(shè)規(guī)模需要，在考慮技術(shù)等因素的前提下，按照先進(jìn)、可靠節(jié)省投資的原則，計(jì)劃選用2HZS180混凝土攪拌站（年生產(chǎn)能力60萬m3）。、原料條件在原材料供應(yīng)方面，也均在合理的運(yùn)營半徑內(nèi)，具體如下：材料供貨商供應(yīng)量運(yùn)距（km）石料昆鋼龍山礦1000t/天1砂棋臺砂場水泥325嘉華水泥廠342552供電供水 根據(jù)昆鋼重型裝備制造集團(tuán)有限公司機(jī)械設(shè)備制造建安工程有限公司與昆鋼龍山礦簽定的水電供應(yīng)的意向書，攪拌站所用的水電由昆鋼龍山礦供給?，F(xiàn)在安寧市雖有商品混凝土攪拌站，但建設(shè)規(guī)模小，市場占有率不大，遠(yuǎn)不能滿足市場需求。目前，昆明市商品混凝土生產(chǎn)線達(dá)到了60條，設(shè)計(jì)生產(chǎn)能力達(dá)到了1500萬立方，規(guī)劃禁用區(qū)內(nèi)，項(xiàng)目建設(shè)所用混凝土已基本采用預(yù)拌混凝土。技術(shù)成熟商品混凝土亦稱預(yù)拌混凝土，它是市場經(jīng)濟(jì)和現(xiàn)代混凝土工藝技術(shù)相結(jié)合的產(chǎn)物，是混凝土發(fā)展史上的一次革命突破，是混凝土工業(yè)走向現(xiàn)代化、科學(xué)化、專業(yè)化的標(biāo)志。s home. We shall all remember Mr Page for his patience and understanding and for the kindly encouragement he gave us when we went so unwillingly to school. A great many former pupils will be attending a farewell dinner in his honour next Thursday. It is a curious coincidence that the day before his retirement, Mr Page will have been teaching for a total of forty years. After he has retired, he will devote himself to gardening. For him, this will be an entirely new hobby. But this does not matter, for, as he has often remarked, one is never too old to learn. Busmen have decided to go on strike next week. The strike is due to begin on Tuesday. No one knows how long it will last. The busmen have stated that the strike will continue until general agreement is reached about pay and working conditions. Most people believe that the strike will last for at least a week. Many owners of private cars are going to offer 39。 39。 The Crystal Palace 水晶宮 I lit a cigarette to calm my nerves. I smoked with concentration and pleasure as I was sure that this would be my last cigarette. For a whole week I did not smoke at all and during this time, my wife suffered terribly. I had all the usual symptoms of someone giving up smoking: a bad temper and an enormous appetite. My friends kept on offering me cigarettes and cigars. They made no effort to hide their amusement whenever I produced a packet of sweets from my pocket. After seven days of this I went to a party. Everybody around me was smoking and I felt extremely unfortable. When my old friend Brian urged me to accept a cigarette, it was more than I could bear. I took one guiltily, lit it and smoked with satisfaction. My wife was delighted that things had returned to normal once more. Anyway, as Brian pointed out, it is the easiest thing in the world to give up smoking. He himself has done it lots of times! The mummy of an Egyptian woman who died in 800 . has just had an operation. The mummy is that of Shepenmut who was once a singer in the Temple of Thebes. As there were strange marks on the Xray plates taken of the mummy, doctors have been trying to find out whether the woman died of a rare disease. The only way to do this was to operate. The operation, which lasted for over four hours, proved to be very difficult because of the hard resin which covered the skin. The doctors removed a section of the mummy and sent it to a laboratory. They also found something which the Xray of the god Duamutef. This god which has the head of a cow was normally placed we are taking you to the macaroni fields of Calabria. Macaroni has been grown in this area for over six hundred years. Two of the leading growers, Giuseppe Moldova and Ricardo Brabante, tell me that they have been expecting a splendid crop this year and harvesting has begun earlier than usual. Here you can see two workers who, between them, have just finished cutting three cartloads of golden brown SOS39。m Brinksley Meers, and my other name is Gloria Gleam. Now you get out of here fast !39。 don39。 he shouted: 39。t be better, Gloria,39。Lesson74 Out of the limelight 舞臺之外s son, Donald, also set up a world record. Like his father, he was driving a car called Bluebird.Lesson71 A famous clock 一個(gè)著名的大鐘 Then I39。Would you mind my ing with you ?39。 I said. 39。opened alive. Fancy meeting you here !39。39。 he asked, before I had finished speaking.ll e with you,39。lesson69 But not murder! 并非謀殺！When you visit London, one of the first things you will see is Big Ben, the famous clock which can be heard all over the world on the . If the Houses of Parliament had hot been burned down in 1834, the great clock would never have been erected. Big Ben takes its name from Sir Benjamin Hall who was responsible for the making of the clock when the new Houses of Parliament were being built. It is not only of immense size, but is extremely accurate as well. Officials from Greenwich Observatory have the clock checked twice a day. On the . you can hear the clock when it is actually striking because microphones are connected to the clock tower. Big Ben has rarely gone wrong. Once, however, it failed to give the correct time. A painter who had been working on the tower hung a pot of paint on one of the hands and slowed it down ! An ancient bus stopped by a dry river bed and a party of famous actors and actresses got off. Dressed in dark glasses and old clothes, they had taken special precautions so that no one should recognize them. But as they soon discovered, disguises can sometimes be too perfect. Brinksley Meers agreed. 39。 I39。t be too hard on us. I39。 in the snow. Fortunately, a pilot saw the signal and sent a message by radio to the nearest town. It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.macaroni stalks. The whole village has been working day and night gathering and threshing this year39。inside a mummy. The doctors have not