機械設(shè)計攪拌器的設(shè)計


摘要
完成絮凝過程的絮凝池(一般常稱反應(yīng)池)，在凈水處理中占有重要的地位。天然水中的懸浮物質(zhì)及肢體物質(zhì)的粒徑非常細(xì)小。為去除這些物質(zhì)通常借助于混凝的手段，也就是說在原水中加入適當(dāng)?shù)幕炷齽?jīng)過充分混和，使膠體穩(wěn)定性被壞(脫穩(wěn)）并與混凝劑水介后的聚合物相吸附，使顆粒具有絮凝性能。而絮凝池的目的就是創(chuàng)造合適的水力條件使這種具有絮凝性能的顆粒在相互接觸中聚集，以形成較大的絮凝體(絮粒)。因此，絮凝池設(shè)計是否確當(dāng)，關(guān)系到絮凝的效果，而絮凝的效果又直接影響后續(xù)處理的沉淀效果。絮凝攪拌機是絮凝池機械攪拌的裝置，它主要用于廢水處理的攪拌過程。本設(shè)計提到了絮凝池的設(shè)計，攪拌機的設(shè)計以及其工藝流程。
關(guān)鍵詞： 絮凝池 混凝劑 沉淀效果 絮凝性能
Abstract
Accomplish flocculation process flocculation pool (call reaction in general often pool) , handle middle in clean water occupying important position. Natural water suspension matter and limb matter grain diameter are very trivial.Be to dislodge these matter being backed by the means drifting along curdling generally , that is ,add the appropriate coagulant , blend through sufficiently in raw water, let colloid stability be spoiled the polymer (coming off after steady) and being situated between with coagulant water looks at and appraises an adsorption , makes a pellet have the flocculation function. But, that flocculation pool purpose is to create appropriate waterpower condition makes this have flocculation function pellet assembling, to form bigger flocculation body (catkin granule) in contacting middle mutually. But therefore, flocculation pool designs thinking that indeed or not, effect being related to a flocculation, the flocculation effect has direct impact to follow-up treatment precipitayion effect. The flocculation mixer is flocculation pool mechanical rabble device , it is used for the waste water treatment mixing process mainly. Design the design having mentioned flocculation pool originally, the mixer design and whose process flow.
Keywords:  Flocculation pool   Coagulant    Precipitayion effect   Flocculation function

目錄
1 前 言 1
1.1　畢業(yè)設(shè)計課題的目的、意義、國內(nèi)外現(xiàn)狀 1
1.1.1 畢業(yè)設(shè)計課題的目的、意義 1
1.1.2 國內(nèi)外污水處理的現(xiàn)狀 1
1.2 攪拌機在污水處理中的作用 2
1.2.1 攪拌機的發(fā)展概述 2
1.2.2 反應(yīng)攪拌機的工作原理 2
1.3 絮凝的工作原理 3
1.4 水處理中的攪拌設(shè)備 3
1.5 絮凝攪拌機的適應(yīng)條件和構(gòu)造 3
1.5.1 絮凝攪拌機的適應(yīng)條件 3
1.5.2 絮凝攪拌機的構(gòu)造 4
1.6 本課題的設(shè)計思路 5
2 絮凝池的設(shè)計 6
2.1 絮凝池的設(shè)計探討 6
2.1.1 絮凝的相似關(guān)系 7
2.1.2 假設(shè)和設(shè)想 10
2.2絮凝池的設(shè)計要求及結(jié)果 15
3 絮凝攪拌機的設(shè)計 16
3.1設(shè)計原始數(shù)據(jù) 16
3.2設(shè)計要點 16
3.3設(shè)計計算數(shù)據(jù) 16
3.4槳葉的設(shè)計 17
3.4.1槳葉結(jié)構(gòu)尺寸確定 17
3.4.2攪拌器轉(zhuǎn)速計算 17
3.4.3攪拌功率計算 19
4 電動機及減速器的選型 21
4.1減速器和電動機的選型條件 21
4.2電動機與減速器的選擇 21
4.4攪拌軸的設(shè)計及其結(jié)果驗證 23
4.5軸與槳葉、聯(lián)軸器的連接 24
4.5.1連接形式 24
4.5.2聯(lián)軸器與軸的連接 24
4.6軸承的選型及軸的最終確定 24
5 支撐裝置設(shè)計 25
5.1攪拌機的支承部分 25
5.1.1機座 25
5.1.2軸承裝置 26
5.2水下支撐座的設(shè)計 26
5.2.1軸承的選型 26
5.2.2支撐套的設(shè)計 27
6 軸的密封 28
7 結(jié) 論 30
符號說明 31
參考文獻(xiàn) 32
謝 辭 33