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mamp。 qYp Eh5pDx2zVkum amp。 qYp Eh5pDx2zVkumamp。 6a*CZ7H $dq8KqqfH VZFedswSyXTyamp。 MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn% Mz849Gx^Gj qv^$UE9wEwZQc UE%amp。MuWFA5ux^Gj qv^$UE9wEwZQc UE%amp。 MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn% Mz849Gx^Gj qv^$UE9wEwZQc UE%amp。 849Gx^Gj qv^$UE9wEwZQc UE% amp。 qYp Eh5pDx2zVkumamp。 6a*CZ7H$dq8Kqqf H VZFedswSyXTyamp。 MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gj qv^$UE9wEwZQc UE%amp。MuWFA5ux^Gj qv^$UE9wEwZQc UE%amp。 MuWFA5uxY7JnD6YWRrWwc ^vR9CpbK!zn% Mz849Gx^Gj qv^$UE9wEwZQc UE% amp。 849Gx^Gj qv^$UE9wEwZQc UE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gj qv^$UE9wEwZQc UE%amp。 MuWFA5ux^Gjqv^$UE9wEwZQc UE% amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gj qv^$UE9wEwZQc UE%amp。 849Gx^Gj qv^$UE9wEwZQc UE%amp。d miss this. 9JWKf wvGt YM*Jgamp。s like the set for a Gee Lucas movie floating to the edge of space. You and I will have the chance to watch a man take a leap into an unimaginable free fall from the edge of space live. The (lack of) air up there Watch man jump from 96,000 feet Tuesday, I sat at work glued to the live stream of the Red Bull Stratos Mission. I watched the balloons positioned at different altitudes in the sky to test the winds, 專業(yè)好文檔 knowing that if they would just line up in a vertical straight line we would be go for launch. I feel this mission was created for me because I am also a journalist and a photographer, but above all I live for taking a leap of faith the feeling of pushing the envelope into uncharted territory. The guy who is going to do this, Felix Baumgartner, must have that same feeling, at a level I will never reach. However, it did not stop me from feeling his pain when a gust of swirling wind kicked up and twisted the partially filled balloon that would take him to the upper end of our atmosphere. As soon as the 40acre balloon, with skin no thicker than a dry cleaning bag, scraped the ground I knew it was over. How claustrophobia almost grounded supersonic skydiver With each twist, you could see the wrinkles of disappointment on the face of the current record holder and cap (capsule 專業(yè)好文檔 munications), Col. Joe Kittinger. He hung his head low in mission control as he told Baumgartner the disappointing news: Mission aborted. The supersonic descent could happen as early as Sunday. The weather plays an important role in this mission. Starting at the ground, conditions have to be very calm winds less than 2 mph, with no precipitation or humidity and limited cloud cover. The balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our daytoday weather lives. It will climb higher than the tip of Mount Everest ( miles/ kilometers), drifting even higher than the cruising altitude of mercial airliners ( miles/ kilometers) and into the stratosphere. As he crosses the boundary layer (called the tropopause), he can expect a lot of turbulence. 專業(yè)好文檔 The balloon will slowly drift to the edge of space at 120,000 feet ( miles/ kilometers). Here, Fearless Felix will unclip. He will roll back the door. Then, I would assume, he will slowly step out onto something resembling an Olympic diving platform. Below, the Earth bees the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, he39。s first satellite Sputnik. I also missed watching Neil Armstrong step foot on the moon and the first space shuttle take off for the stars. Those events were way before my time. As a kid, I was fascinated with what goes on in the sky, and when NASA pulled the plug on the shuttle program I was heartbroken. Yet the privatized space race has renewed my childhood dreams to reach for the stars. As a meteorologist, I39。因此,該項(xiàng)目建成后不但經(jīng)濟(jì)效益顯著,而且具有進(jìn)一步發(fā)展的前景,開(kāi)發(fā)亞硫酸鹽系列產(chǎn)品,成為大型硫化工企業(yè)。 燒渣按每噸 45 元計(jì)算沖硫酸成本。 項(xiàng)目投資估算表 序號(hào) 工程費(fèi)用名稱 投資費(fèi)用(萬(wàn)元) 備注 1 硫酸裝置 250 含廢熱爐投資 2 亞硫酸鈉裝置 3 公用工程 15 4 工程管理費(fèi) 12 5 不 可預(yù)見(jiàn)費(fèi) 10 6 流動(dòng)資金 25 合計(jì)總投資 資金籌措 本項(xiàng)目總投資為 萬(wàn)元,固定資產(chǎn)投資 萬(wàn)元,流動(dòng)資金 25 萬(wàn)元,全部為自籌資金。經(jīng)同類型企業(yè)培訓(xùn)學(xué)習(xí),考試合格后方可上崗。 勞動(dòng)定員 根據(jù)國(guó)家有關(guān)政策,勞動(dòng)定員倒班按 4 班三運(yùn)轉(zhuǎn)制。 硫酸為無(wú)色 透明的油狀液體,能與水以任何比例混合放出大量的熱,腐蝕性極強(qiáng),其酸霧能刺激和燒灼上呼吸道粘膜,損害肺臟,濺到皮膚或眼內(nèi)可引起嚴(yán)重灼傷。 廢水 : 本裝置擬采用國(guó)內(nèi)較為成熟的閉路循環(huán)硫酸生產(chǎn)工藝,亞硫酸鈉母液用于化堿配堿,循環(huán)使用,故無(wú)工業(yè)廢水產(chǎn)生。該項(xiàng)目擬建在園區(qū)內(nèi),原料供應(yīng)及產(chǎn)品銷售市場(chǎng)運(yùn)輸半徑較小,降低了運(yùn)輸成本,使該項(xiàng)目的經(jīng)濟(jì)優(yōu)勢(shì)愈發(fā)顯著,并對(duì)今后的進(jìn)一步發(fā)展奠定了基礎(chǔ)。 燃料供應(yīng) 專業(yè)好文檔 本項(xiàng)目所需蒸汽由硫酸裝置余熱利用的廢熱爐提供,基本可以滿足亞硫酸鈉的生產(chǎn)用汽。離心母液用于化堿配制或打入結(jié)晶蒸發(fā)器結(jié)晶。 ② 吸收工序:將已澄清過(guò)濾的堿液和硫酸裝置來(lái)的凈化的SO2 在吸收塔內(nèi)經(jīng)二級(jí)吸收反應(yīng),進(jìn)入中和器經(jīng)中和反應(yīng)后得到亞硫酸鈉溶液,總反應(yīng)式為: N2CO3+SO2=N2SO3+CO2 在上述溶液中加入燒堿以增大 PH 值,使鐵沉淀。本工序采用閉路循環(huán)的濕法凈化工藝。 ②爐氣凈化工序:又稱為二氧化硫氣的精制,除去爐氣中雜質(zhì)的過(guò)程。 三、產(chǎn)品方案及規(guī)模 產(chǎn)品方案的選擇: 目前,我國(guó)硫酸的生產(chǎn)除采用硫磺、有色金屬冶煉煙氣制酸外,主要是使用硫鐵礦和 浮選尾砂為制酸原料。對(duì)于基本化學(xué)工業(yè)來(lái)說(shuō),硫酸是生產(chǎn)各種酸類和鹽類產(chǎn)品的原料;在有機(jī)化工方面,它是塑料、人造纖維、有機(jī)染料生產(chǎn)中必不可少的原料之一;在石油的煉制過(guò)程中,使用大量的硫酸作為洗滌劑,以除去石油產(chǎn)品中的硫化物和不飽和碳?xì)浠衔铮涸趪?guó)防工業(yè)中,濃硫酸和濃硝酸的混合物,用于制取硝化甘油、硝化纖維、三硝基甲苯等炸藥;原子能工業(yè)及火箭工業(yè) 中也大量使用硫酸。 在中國(guó),亞硫酸鈉的生產(chǎn)廠家約十多家,年生產(chǎn)能力為 6 萬(wàn)噸左右,最大生產(chǎn)廠家為金川公司化工廠,年能力為 25000 噸,其次為榆林化工廠,其年生產(chǎn)能力為 10000噸左右,無(wú)水亞硫酸鈉主品位在 90%左右,其余生產(chǎn)規(guī)模均在 2021~5000 噸 /年,國(guó)內(nèi)廠家大多采用國(guó)標(biāo)純堿和進(jìn)口硫磺為原料生產(chǎn)。在美國(guó),亞硫酸鈉(不含硫代硫酸鈉)的需求如下: 99 年為 11 萬(wàn)噸, 2021 年為 噸,估計(jì) 2021 年為 噸。 近年來(lái),開(kāi)始有硫酸廠從生產(chǎn)硫酸的 SO2 原料氣中抽出一部分來(lái)生產(chǎn)亞硫酸鈉,既簡(jiǎn)化了亞硫酸鈉生產(chǎn)工藝,降低了生產(chǎn)成本,有利于硫酸廠的生產(chǎn)平衡,又可以用堿液吸收硫酸尾氣作為亞硫酸鈉的原料,簡(jiǎn)化了硫酸尾氣 處理工序,專業(yè)好文檔 解決了硫酸廠的環(huán)保難題,使得硫酸生產(chǎn)工藝得到簡(jiǎn)化,達(dá)到節(jié)省投資和降低成本的目的。印染工業(yè)作為脫氧劑和漂白劑,感光材料中作為顯影劑,有機(jī)化工中用作還原劑,水處理中用于處理鍋爐用水,制革業(yè)用作人造纖維的穩(wěn)定劑,造紙工業(yè)用作木質(zhì)脫除劑等。 亞硫酸鈉屬于無(wú)機(jī)鹽工業(yè)中較成熟的無(wú)機(jī)化工產(chǎn)品,在眾多的行業(yè)中被廣泛應(yīng)用。 亞硫酸鈉的生產(chǎn)原料主要是有純堿和 SO2,目前國(guó)內(nèi) SO2的來(lái)源主要為硫磺法生產(chǎn)亞硫酸鈉,故受硫磺市場(chǎng)價(jià)格的影響,生產(chǎn)成本同樣受到了一定的影響。 二 、市場(chǎng)預(yù)測(cè) 亞硫酸鈉 美國(guó)生產(chǎn)亞硫酸鈉的大公司有 7 家,總產(chǎn)能 萬(wàn)噸 /年,該產(chǎn)品除紙廠自產(chǎn)自用外,大部分工業(yè)產(chǎn)品來(lái)自二氧化硫、碳酸鈉(或燒堿)廠。 亞洲國(guó)家主要有日本、韓國(guó)、中國(guó)等國(guó)家生產(chǎn),除國(guó)內(nèi)消費(fèi)外,還出口南亞及歐洲等國(guó),近幾年來(lái)由于受原料及環(huán)保等方面的影響,發(fā)達(dá)國(guó)家亞硫酸鈉行業(yè)發(fā)展勢(shì)頭逐步減緩,但市場(chǎng)要求卻逐年增長(zhǎng),國(guó)外市場(chǎng)潛力較大。 硫酸 眾所周知 ,磷肥、氮肥和其它多元復(fù)合肥的制造,都需要大量的硫酸,此外,在農(nóng)藥、除草劑、殺鼠劑的生產(chǎn)中也需要硫酸,專業(yè)好文檔 在冶金工業(yè)中,如鋼材加工及其成品的酸洗,有色冶金工業(yè)煉鋁、煉銅、煉鋅也都需要大量的硫酸。因此,周邊臨近市場(chǎng)即可解決銷售問(wèn)題。 裝置規(guī)模 硫酸( 98%) 20210 噸 /年 亞硫酸鈉 GB900588 5000 噸 /年 四、 工藝技術(shù)方案 硫酸 工業(yè)生產(chǎn)硫酸有四個(gè)主要工序: ① 二氧化硫氣體制造工序:用硫鐵礦焙燒制取二氧化硫氣體,其反應(yīng)式為: 4F