【正文】 氯化鉀（ ） 硫酸銨（ ） 氯化銨（ ） 產(chǎn)品 10 填 料（ ） 磷 銨（ ） 氯化鎂（ ） 工藝流程 經(jīng)濟(jì)作物控釋專用 專業(yè)好文檔 a 工藝流程簡(jiǎn)述（見工藝流程圖 H54902）： 上述七種原料分別進(jìn)入各自料斗，經(jīng)電子皮帶計(jì)算機(jī)計(jì)量后，進(jìn)入混合料皮帶機(jī)再進(jìn)入磨機(jī)粉磨后經(jīng)斗提機(jī)和皮帶運(yùn)到造粒工段混合料斗，混合料經(jīng)給料機(jī)進(jìn)入轉(zhuǎn)達(dá)鼓造粒機(jī)造粒后進(jìn)入干燥機(jī)干燥，干燥后的物料進(jìn)入冷卻機(jī)冷卻，冷卻后的物料經(jīng)篩分機(jī)篩粉后，合格粒子進(jìn)程序包 膜機(jī)和西瑪西專用包膜材料包膜后進(jìn)入成品斗經(jīng)自動(dòng)包裝機(jī)包裝即為成品。大顆粒物料經(jīng)粉碎機(jī)粉碎后與細(xì)粉返回混合料斗后入轉(zhuǎn)鼓造粒機(jī)。 干燥機(jī)與冷卻出來的尾氣分別進(jìn)入重力沉降除塵器除塵后，經(jīng)引風(fēng)機(jī)后進(jìn)入水洗塔進(jìn)一步除塵后經(jīng)排氣筒排放。 B 本工程采用了目前國內(nèi)最先進(jìn)的設(shè)備 原料采用了超細(xì)磨，可提高比表面積，同時(shí)有利于造粒成球； 配料采用了自動(dòng)配料，可精確靈活調(diào)節(jié)，同時(shí)節(jié)約了人力； 造粒采用轉(zhuǎn)鼓造粒，成球率高，顆粒強(qiáng)度高； 干燥熱源采用下飼制熱風(fēng)源，該燃燒爐燃燒效率高，適應(yīng)煤種廣泛； 包裝采用 電子包裝秤，可按 5KG— 50KG 等各種包裝靈活準(zhǔn)確調(diào)節(jié)，適應(yīng)不同客戶要求； 成品庫轉(zhuǎn)運(yùn)采用堆碼機(jī)，自動(dòng)化程度高。 C 主要設(shè)備的選擇 干燥機(jī)的選擇 I 計(jì)算條件 專業(yè)好文檔 年產(chǎn) 10 萬噸西瑪西經(jīng)濟(jì)作物控釋肥分兩條線建設(shè)，故干燥機(jī)干燥能力 5 萬噸 /年 .條，進(jìn)氣溫度 300℃ ，出氣溫度 90℃ ，干燥強(qiáng)度 A=，氣體流速 2M/S，蒸發(fā)水量 G=2777KG/H，氣量16000 NM3/H。 II計(jì)算 進(jìn)入爐中的氣量 V=（ 16000/3600） {（ 300+90） /2+273}/（ 273+90） =簡(jiǎn)體有效容積 V=G/A=2777/35= 簡(jiǎn)體直徑 D=()1/2= 取 D= 簡(jiǎn)體長(zhǎng) L= = 取 L=22m 干燥機(jī)型號(hào) 22m/條生產(chǎn)線。 C 主要設(shè)備表如下表 41 表 41 經(jīng)濟(jì)作物控釋控釋專用肥主要設(shè)備表 序號(hào) 設(shè)備名稱 規(guī) 格 單位 數(shù)量 1 原料磨 / 臺(tái) 1 2 斗提機(jī) / 臺(tái) 2 3 計(jì)量稱 ICSPC型 臺(tái) 7 4 粉碎機(jī) / 臺(tái) 2 5 轉(zhuǎn)鼓造 粒機(jī) 6m 臺(tái) 2 6 烘干機(jī) 22m 臺(tái) 2 7 冷卻機(jī) 14m 臺(tái) ２ 8 洗滌塔 7m 臺(tái) ２ 9 自動(dòng)定量包裝機(jī) BLG1 臺(tái) １ 10 燃燒機(jī) 下飼制 臺(tái) ２ 11 包膜機(jī) 4m 臺(tái) ２ 12 鼓風(fēng)機(jī) 472N06C 臺(tái) ２ 13 引風(fēng)機(jī) / 臺(tái) ２ 專業(yè)好文檔 14 堆碼機(jī) / 臺(tái) ２ １５ 排氣筒 DN1500 10000 座 １ １６ 除塵器 / 座 ２ D 主要原、輔料及水、電、汽消耗定額如表 42： 表 42 經(jīng)濟(jì)作物控釋專用肥消耗定額（以每噸產(chǎn)品計(jì)） 序號(hào) 名稱 規(guī)格 單位 消耗定額 年需量 1 尿素 N46% T 19000 2 氯化鉀 K2O≥ 60% T 35000 3 氯化鎂 T 2021 4 氯化銨 N≥ 25% T 10000 5 硫酸銨 N≥ 21% T 10000 6 填料 45% T 5000 7 磷酸一銨 N+P2O5 ≥ 55% T 19000 8 電 380V KW H 74 14000000 9 蒸汽 T 8000 10 燃料煤 3 自控技術(shù)方案 自控水平和主要控制方案 本設(shè)計(jì)范圍為經(jīng)濟(jì)作物控釋專用肥的自控系統(tǒng)。儀表的設(shè)計(jì)本著先進(jìn)、可靠的原則，能確保裝置安全、正常的操作。根據(jù)目前的生產(chǎn)經(jīng)驗(yàn)，復(fù)混肥車間配料及其重要的溫度控制共用一套集散控制系統(tǒng)（ DCS），其經(jīng)濟(jì)作物專用肥與水稻專用肥生產(chǎn)線各自分別獨(dú)立一個(gè)系統(tǒng)，其它控制點(diǎn)采用常規(guī)儀表控制。 儀表類型的選定 現(xiàn)場(chǎng)一次儀表選用國產(chǎn)先進(jìn)、適用、可靠的產(chǎn)品。為節(jié)省投資、重要 參數(shù)檢測(cè)點(diǎn)和集散型控制系統(tǒng)（ DCS）均選用國內(nèi)產(chǎn)品。 專業(yè)好文檔 Editor39。s note: Judson Jones is a meteorologist, journalist and photographer. He has freelanced with CNN for four years, covering severe weather from tornadoes to typhoons. Follow him on Twitter: @jnjonesjr (CNN) I will always wonder what it was like to huddle around a shortwave radio and through the crackling static from space hear the faint beeps of the world39。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。ve still seen many important weather and space events, but right now, if you were sitting next to me, you39。d hear my foot tapping rapidly under my desk. I39。m anxious for the next one: a space capsule hanging from a crane in the New Mexico desert. It39。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, 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 專業(yè)好文檔 With each twist, you could see the wrinkles of disappointment on the face of the current record holder and cap (capsule 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. 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。ll be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jump When he jumps, he is expected to reach the speed of sound 690 mph (1,110 kph) in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approa