【正文】 心溫度燃燒到1300℃以上，尾部煙氣不需要用柴油、天然氣進行二次燃燒處理后排放，節(jié)省了大量的不可再生的化石能源。 污泥對設(shè)備的粘結(jié)污泥干化過程中的膠粘相階段，會對設(shè)備造成嚴重粘結(jié)，這是系統(tǒng)設(shè)計時需要考慮的核心問題之一。專利技術(shù)的一個重要特征是使用生物質(zhì)粉末作為干粉使用，得到的直接好處是：系統(tǒng)大幅度簡化、增加了干化顆粒的熱值，間接好處是可以提高燃燒溫度，有利于強化煙氣除臭和二噁英分解。以稻殼粉和中國宣紙集團公司的提供的石灰渣的混合物作為干粉，也取得了較好的效果。專利技術(shù)使用循環(huán)汽作為干燥劑，其成份為：常壓過熱蒸汽占90％、熱空氣占10％，循環(huán)汽的含氧量小于3％，循環(huán)汽的最高溫度不大于179℃，顆粒溫度不大于105℃，以上條件下，不可能發(fā)生干燥劑爆炸事故。 二噁英熱干化系統(tǒng)與污泥焚燒鍋爐之間有以下三點間接聯(lián)系：一是尾氣二次風，二是污泥焚燒鍋爐蒸汽作為干化熱源，三是干化污泥顆粒作為污泥焚燒鍋爐的燃料。已有的工程案例表明：可以將污泥焚燒鍋爐火焰中心溫度提高到1300℃以上、爐膛出口煙溫提高到900℃，而不影響鍋爐的正常運行，此時污泥焚燒鍋爐的排煙溫度將上升50℃左右，鍋爐效率由此下降大約4％，這個代價是可以接受的，其收益是可以保證二噁英的充分分解。廠房環(huán)境內(nèi)的惡臭控制由系統(tǒng)的負壓設(shè)計加以保證，同時在所有可能的惡臭泄漏口加設(shè)吸風口，吸風通過管路系統(tǒng)送至污泥焚燒鍋爐送風機入口。Lesson65 Jumbo versus the police 小象對警察s hospital. Dressed up as Father Christmas and acpanied by a 39。 of six pretty girls, he set off down the main street of the city riding a baby elephant called Jumbo. He, should have known that the police would never allow this sort of thing. A policeman approached Jimmy and told him he ought to have gone along a sidestreet as Jumbo was holding up the traffic. Though Jimmy agreed to go at once, Jumbo refused to move. Fifteen policemen had to push very hard to get him off the main street. The police had a difficult time, but they were most amused. 39。 said a policeman afterwards, 39。t have to carry him. Of course, we should arrest him, but as he has a good record, we shall let him off this time.39。Lesson66 Sweet as honey! 像蜜一樣甜！Lesson67 Volcanoes 火山 and measure temperatures. Tazieff has often risked his life in this way. He has been able to tell us more about active volcanoes than any man alive. I crossed the street to avoid meeting him, but he saw me and came running towards me. It was no use pretending that I had not seen him, so I waved to him. I never enjoy meeting Bert Dykes. He never has anything to do. No matter how busy you are, he always insists on ing with you. I had to think of a way of preventing him from following me around all morning.Hullo, Bert,39。Fancy meeting you here !39。39。 Bert answered. 39。re not busy doing anything, are you ?39。39。 I answered.39。m going to.. .39。39。 he asked, before I had finished speaking. I lied, 39。m going to the dentist.39。39。ll e with you,39。 There39。waiting room !39。lesson69 But not murder! 并非謀殺！Just one more thing, Mr Eames. Let us suppose that a child suddenly crosses the road in front of you. As soon as I tap on the window, I want the car to be stopped immediately.39。Mr Eames,39。 you have just killed that child !39。lesson70During a bullfight, a drunk suddenly wandered into the middle of the ring. The crowd began to shout, but the drunk was unaware of the danger. The bull was busy with the matador at the time, but it suddenly caught sight of the drunk who was shouting rude remarks and waving a red cap. Apparently sensitive to criticism, the bull forgot all about the matador and charged at the drunk. The crowd suddenly grew quiet. The drunk, however, seemed quite sure of himself. When the bull got close to him, he clumsily stepped aside to let it pass. The crowd broke into cheers and the drunk bowed. By this time, however, three men had e into the ring and they quickly dragged the drunk to safety. Even the bull seemed to feel sorry for him, for it looked on sympathetically until the drunk was out of the way before once more turning its attention to the matador.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 ! The great racing driver, Sir Malcolm Campbell, was the first man to drive at over 300 miles per hour. He set up a new world record in September 1935 at Bonneville Salt Flats, Utah. Bluebird, the car he was driving, had been specially built for him. It was over 30 feet in length and had a 2500 horsepower engine. Although Campbell reached a speed of over 304 miles per hour, he had great difficulty in controlling the car because a tyre burst during the first run. After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour. However, a few days later, he was told that a mistake had been made. His average speed had been 301 miles per hour. Since that time, racing drivers have reached speeds of over 400 miles an hour. Followings footsteps many years later, Sir Malcolm39。Lesson73 The recordholder 紀錄保持者s fishing, or eight hours in a cinema seeing the same film over and over again, is usually as far as they get. They have all been put to shame by a boy who, while playing truant, travelled 1600 miles. He hitch hiked to Dover and, towards evening, went into a boat to find somewhere to sleep. When he woke up next morning, he discovered that the boat had, in the meantime, travelled to Calais. No one noticed the boy as he crept off. From there, he hitchhiked to Paris in a lorry. The driver gave him a few biscuits and a cup of coffee and left him just outside the city. The next car the boy stopped did not take him into the centre of Paris as he hoped it would, but to Perpignan on the FrenchSpanish border. There he was picked up by a policeman and sent back to England by the local authorities. He has surely set up a record for the thousands of boys who dream of evading school.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 sp