【正文】 年產(chǎn) 5 萬噸 S5Φ 20 地暖管擠出生產(chǎn)工藝設計 摘 要 本設計采用 美國特殊的分子設計和合成工藝生產(chǎn)的一種非交聯(lián)聚乙烯 Dow lex 2344E 為 原料 ，對年產(chǎn) 5 萬噸 S5Φ 20 地暖管擠出生產(chǎn)工藝進行設計。首先介紹了 PERT 的性能特點，確定了產(chǎn)品的原材料、配方及 產(chǎn)品 規(guī)格，然后從擠出工藝方法 、工藝流程、物料和 能 量衡算 等過程進行了設計計算，確定了 設備的 規(guī)格型號 、 核心部件結(jié)構(gòu)、產(chǎn)品的成型工藝過程 等。 最后對擠出生產(chǎn)車間和廠區(qū)進行設計，車間管理與生產(chǎn)組織、工程經(jīng)濟概算進行總體規(guī) 劃，經(jīng)過反復地研究計算，結(jié)果證明此設計經(jīng)濟可行。 關鍵詞： 耐熱聚乙烯，擠出成型，物料和能量衡算，設備選型，經(jīng)濟概算 Annual output of 50000 tons of S5 Φ 20 x mm PE RT floor heating pipe extrusion process design ABSTRACT This design uses a . special production of molecular design and synthesis of noncrosslinked polyethylene Dow lex 2344E as raw material, 50,000 tons S5Φ20 floor heating pipe extrusion production process design. First introduced the performance characteristics of PERT to determine the product39。s raw materials, formulations and product specifications, and then from the extrusion process methods, processes, materials and energy balance, such as process design calculations to determine the equipment specifications, the core member structure, the product forming process and the like. Finally, the extrusion plant and plant design, plant management and production anization, engineering estimates overall economic plan, after repeated study calculated results show that the design economically viable. KEY WORDS: Heatresistant polyethylene， Extrusion molding， Material and energy balance， Equipment selection， Economic estimate 目 錄 前 言 .................................................................................................. 1 第 1 章 PERT 地暖管材簡介 ............................................................. 2 材料性能與成型性能 ............................................................. 2 概述 .............................................................................. 2 基本特性 ...................................................................... 2 主要用途 ...................................................................... 3 國內(nèi)外研究進展 ..................................................................... 3 國外研究進展 .............................................................. 3 國內(nèi)研 究進展 .............................................................. 4 第 2 章 擠出成型工藝概述及 PERT 地暖管擠出生產(chǎn)技術(shù) ............ 5 擠出成型工藝概述 ................................................................. 5 擠出成型工藝原理 ....................................................... 5 擠出過程的主要工藝參數(shù) ........................................... 5 擠出成型工藝過程及條件 ........................................... 6 PERT 地暖管擠出生產(chǎn)技術(shù) .................................................. 6 PERT 管材原料及配方 ................................................ 6 PERT 管材擠出設備 .................................................... 7 螺桿機筒設計 .............................................................. 8 高效定徑冷卻系統(tǒng) ....................................................... 8 第 3 章 物料衡算與能量衡算 ............................................................. 9 物料衡算 ................................................................................ 9 計算基準的選取 ........................................................... 9 物料衡算過程 .............................................................. 9 能量衡算 ...............................................................................10 電能消耗 .....................................................................10 水量消耗 ..................................................................... 11 煤的消耗 ..................................................................... 11 第 4 章 設備選型計算與工程經(jīng)濟概算 ............................................12 擠出機的確定與計算 ............................................................12 工程經(jīng)濟概算 ........................................................................13 編制概算的意義 ..........................................................13 編制原則 .........................................