【正文】 中，PVC管道是各種塑料管道中消費量最大的品種。為了減少渠道的損失，可以將渠道硬化使其防漏。多年來，產(chǎn)品銷往日本、英國、法國、荷蘭、比利時、德國等五十多個國家和地區(qū)，尤其在美國切紙機(jī)械進(jìn)口業(yè)務(wù)中，公司的銷量已名列第二。企業(yè)現(xiàn)具有生產(chǎn)各類塑料制品能力2500噸/年，其中：PVCU管材1500噸；聚乙烯管材600噸；聚乙烯薄膜400噸。P: I see. Earlier you said that athletes are invited from all over the world. Do you mean the Greek world? Our Greek cities used to pete against each other just for the honour of winning. No other countries could join in, nor could slaves or women!An interviewIn September 1941, the Nazi army was near St Petersburg. This was atime when the two countries were at war. Before the Nazis could get to the summer palace, the Russians were able to remove some furnitures and small art objects from the Amber Room. However, some of the Nazis secretly stole the room itself. In less than two days 100000 pieces were put inside twentyseven wooden boxes. There is no doubt that the boxes were then put on a train for Konigsberg, which was at a time a German city on the Baltic Sea. After that, what happened to the Amber Room remains a mystery.A petitors of Bill GatesFrederick William I, the king of Prussia, could never have imagined that his greatest gift to the Russian people would have such an amazing history. This gift was the Amber Room, which was given this name because several tons of amber were used to make it. The amber which was selected had a beautiful yellowbrown colour like honey. The design of the room was in the fancy style popular in those days. It was also a treasure decorated with gold and jewels, which took the country’s best artists about ten years to make.What is a fact? Is it something that people believe? No. A fact is anything that can be proved. For example, it can be proved that China has more people than any other country in the world. This is a fact.To Feng, digging down in to the earth is like reading page after page of a book. Each dynasty found in the earth is like an interesting story. Not long ago he and other writers and artists took photos of the old parts of Tianjin. The photos were put into a book which was very popular. The money from the book helps his prjects. Once, and old man asked Feng to sign a book for him, saying he would give it to his grandson who was not yet born. Feng was glad to do it he knows that he past is not only for us to enjoy but also for the children of the future.L: Every four years. There are two main sets of Games—the Winter and the Summer Olympics, and both are held every four years on a regular basis. The Winter Olympics are usually held two years before the Summer Games. Only athletes who have reached the agreed standard for their event will be admitted as petitors. They may e from anywhere in the world.管理及技術(shù)人員中具有高級職稱3人，中級職稱12人，初級職稱5人?！　≡摴鞠群螳@得了ISO9001質(zhì)量保證體系的認(rèn)證證書和歐洲標(biāo)準(zhǔn)化組織（CEN）頒發(fā)的“CE”安全標(biāo)準(zhǔn)證書。本項目符合國家產(chǎn)業(yè)政策，屬于國家鼓勵發(fā)展的建設(shè)項目。而我國農(nóng)業(yè)用水浪費仍然十分嚴(yán)重，灌溉水利用系數(shù)低，全國灌溉水利用系數(shù)僅為43％左右，遠(yuǎn)低于歐洲等發(fā)達(dá)國家70％至80％的水平，全國渠道輸水損失占灌區(qū)用水損失的80％以上。2003年塑料管道增長幅度超過23%，高于塑料制品增幅8個百分點，也高于塑料制造業(yè)中主要品種的增幅。正在建設(shè)的年產(chǎn)15萬噸PVC西部氯堿工程，預(yù)計2005年底即可竣工投產(chǎn)，為本項目的實施提供了可靠的原料保證。58′～106176。年均降水量180～190mm，～1208mm，無霜期153～170天之間，年均日照時數(shù)3100小時。創(chuàng)出了寶山牌鉭粉、鉭絲、恒力牌密封鋼絲繩、寧河牌石灰氮、雙氰胺、石鑫牌硅鐵、沙湖牌面巾紙等一批榮獲國家級和自治區(qū)名牌產(chǎn)品。已于2004年建成并網(wǎng)發(fā)電的4330mw第二電廠，為能源轉(zhuǎn)化和煤炭深加工，以及氯堿化工工業(yè)的發(fā)展提供了有利條件。 主要建設(shè)條件 廠址本項目建設(shè)廠址為市河濱工業(yè)園區(qū)，位于現(xiàn)企業(yè)12km，本項目建設(shè)場址為規(guī)劃的工業(yè)園區(qū)。 項目建成后的機(jī)械維修利用外協(xié)方式，充分利用市機(jī)械修理廠家的機(jī)修能力，本項目不考慮大型設(shè)備的機(jī)械維修，僅考慮中、小修。本項目的建成，具有企業(yè)增效、地方受益、解決城市下崗職工就業(yè)的多重意義。塑料管材廣泛運用于城市水供應(yīng)和下水管道、供熱、煤氣和城市建筑中的水系統(tǒng)，城建項目中的水系統(tǒng)，郊區(qū)飲用水設(shè)備改造，農(nóng)業(yè)灌溉系統(tǒng)，電力電信和國民經(jīng)濟(jì)其他部門。我國在“十五”期間要建設(shè)公路、鐵路和光纖通訊網(wǎng)路，也需要大量的塑料管道。 及市周邊市場分析本項目生產(chǎn)的塑料管材屬于輕泡產(chǎn)品，不宜長距離運輸?shù)拇笞诋a(chǎn)品，一般產(chǎn)品經(jīng)濟(jì)銷售半徑為500km左右，據(jù)此確定本項目的銷售市場為：全境、蒙古烏海地區(qū)和陜西、甘肅部分地區(qū)。本項目選擇的設(shè)備可以生產(chǎn)管材的直徑范圍為φ200mmφ400mm之間，產(chǎn)品方案可以根據(jù)市場需求進(jìn)行調(diào)整。通過價格性能比選，確定選用SJSZ系列SJSZ92/188型錐形雙螺桿擠出機(jī)。　該機(jī)型是目前國內(nèi)綜合性能最好，自動化控制水平最高的機(jī)型。生產(chǎn)線主要技術(shù)性能見下表：型號PVCG200/400生產(chǎn)規(guī)格DN200DN400生產(chǎn)能力800kg/h生產(chǎn)速度主機(jī)型號SJSZ92真空箱長度6m冷卻箱長度6m牽引力30000N冷卻水流量12000L/h驅(qū)動功率90kw生產(chǎn)線長度35m 生產(chǎn)工藝流程低壓輸水灌溉用PVCU塑料管材的生產(chǎn)，一般包括配料、預(yù)混料、擠出、成型、冷卻、牽引、切割、擴(kuò)口等工藝過程。③　擠出過程中應(yīng)隨時觀察螺桿扭矩的大小，應(yīng)通過調(diào)整工藝參數(shù)使螺桿扭矩穩(wěn)定在規(guī)定的數(shù)值以下，以免扭矩過大損傷螺桿。5. 總圖運輸 區(qū)域概況 地理位置及園區(qū)簡介河濱工業(yè)園區(qū)始建于1992年，是回族自治區(qū)人民政府批準(zhǔn)的省級工業(yè)園區(qū)。本項目的建設(shè)廠址位于市河濱工業(yè)園區(qū)，該園區(qū)距市區(qū)10km；大武口區(qū)40km，距銀川市110km；距內(nèi)蒙古烏海市20km。廠區(qū)域內(nèi)主要道路路面寬度為6m。綠化率達(dá)到20﹪。鍋爐房煙氣經(jīng)陶瓷多管除塵器后由煙囪排入大氣。 水源根據(jù)廠址位置及用水量情況，廠區(qū)供水管網(wǎng)與市供水管網(wǎng)連接即可滿足本項目生產(chǎn)、生活和消防用水的要求。采暖室內(nèi)計算溫度辦公室、休息室 18℃生產(chǎn)車間 16℃浴室 23~25 ℃采暖系統(tǒng)采用水平串聯(lián)式和雙管上供下回式系統(tǒng)。、報警系統(tǒng)等。 柱子單層排架廠房采用預(yù)制鋼筋混凝土柱，多層廠房采用搗制鋼筋混凝土框架結(jié)構(gòu)。2）根據(jù)我國國情，在滿足生產(chǎn)工藝的前提下，吸取現(xiàn)生產(chǎn)系統(tǒng)的建設(shè)經(jīng)驗，主要生產(chǎn)設(shè)備和輔助設(shè)備均采用招標(biāo)方式選用國內(nèi)先進(jìn)適用的設(shè)備。根據(jù)該廠的生產(chǎn)實踐，PVC樹脂在正常生產(chǎn)條件下，只產(chǎn)生微量的氯氣，只要保持良好的通風(fēng)，車間空氣質(zhì)量完全符合國家規(guī)定的質(zhì)量標(biāo)準(zhǔn)，對人體不構(gòu)成損害，同時對大氣不會構(gòu)成任何污染。根據(jù)此要求在廠區(qū)內(nèi)設(shè)消防水池一座，以滿足室內(nèi)10分鐘消防用水的要求。采暖管道采用不通行地溝敷設(shè)。 供電電源及供電方案在廠區(qū)內(nèi)設(shè)有10kV配電所，供電電源由市供電系統(tǒng)供給，以架空形式供給一回路電源，廠內(nèi)10kV配電所給各車間供電。主要原材料產(chǎn)地均在本區(qū)，故考慮采用汽車運輸。包蘭鐵路貫穿全境，公路、鐵路運輸十分便捷。東臨黃河，西依賀蘭山，占地面積60km2，規(guī)劃面積28km2。 163090163090揮發(fā)物含量，% 對水電氣的要求①　水：水壓≥；水溫≤10℃；水質(zhì)，必須是軟化水。生產(chǎn)工藝流程見下圖：冷卻定型擠出成型預(yù)混配料原料定長切割檢驗擴(kuò)口廢品產(chǎn)品入庫回收 原料配方根據(jù)國外生產(chǎn)的基本經(jīng)驗，以及結(jié)合我國目前樹脂與供應(yīng)的狀況，PVCU管材的生產(chǎn)配方初步計劃采用下述配方，生產(chǎn)運營過程中根據(jù)實際情況作進(jìn)一步的修訂。SJSZ92/188型錐形雙螺桿擠出機(jī)的主要技術(shù)性能見下表：型號SJSZ92/188螺桿直徑92/188螺桿數(shù)量2螺桿轉(zhuǎn)向異向向外螺桿轉(zhuǎn)速(r/min)33生產(chǎn)能力（kg/h)800螺桿有效工作長度（mm)2500加熱功率(kw)68驅(qū)動功率(kw)90中心高(mm)1200重量(kg)7000 管材生產(chǎn)線簡介本項目建設(shè)的PVCU硬質(zhì)管材生產(chǎn)線主要用于市場農(nóng)用給排水管、建筑給排水、線纜敷設(shè)等方面的各種管徑、壁厚的塑料PVC管材。配以相應(yīng)的成型機(jī)頭和輔機(jī)，可將各種熱塑性塑料特別是硬聚氯乙烯粉料，直接擠出成管、板、片、棒及異型材等塑料制品，還可以完成各種塑料的改性及粉料造粒過程。3. 主要技術(shù)經(jīng)濟(jì)指標(biāo)主要技術(shù)經(jīng)濟(jì)指標(biāo)見下表：表：1 主要技術(shù)經(jīng)濟(jì)指標(biāo)表序號指標(biāo)名稱單位數(shù)量備 注1建設(shè)規(guī)模t/a　正常年2產(chǎn)品產(chǎn)量　　　t/a正常年　t/a　正常年　t/a　正常年　Ta　正常年3主要原材料用量　　　　t/a　正常年t/a 正常年t/a 正常年4供水萬t/a　正常年5年用電量萬kwh　6外部運輸及總圖　　　外部運輸總量萬t/a 　　其中：運入量萬t/a　 運出量萬t/a　廠區(qū)占地畝7建設(shè)期月10 經(jīng)濟(jì)計算按1年8勞動定員　　　　職工人數(shù)人　　其中：工人人　　 管理及服務(wù)人員人　9實物勞動生產(chǎn)率　　　　其中：全員萬元/　正常年　 工人萬元/　正常年10投資及資金籌措