离心式渣浆泵结构设计

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1、摘要离心式渣浆泵广泛应用于煤炭、矿山、冶金、电力、水利、交通等部门，主要进行静矿、尾矿、灰渣、泥沙等固体物料的水力输送，但其过流部件的磨损相当严重，其主要破坏形式为过流部件洞穿和变形，过流部件的严重磨损，恶化了泵内流动特性及外特性，缩短了泵的实际使用寿命，使生产效率降低，加大耗能和设备的投资，进而影响生产的发展。因此所设计的渣浆泵中采用多叶片数来减少单个叶片的磨损，适当的增加过流部件的厚度并采用高硬度的耐磨材料来来减小磨损，将叶轮入口的后盖板设计为凸出的、由光滑圆弧组成的轮毂头。采用填料密封来防止高压液体从泵中漏出和防止空气进入泵内并用背叶片来平衡轴向力。本

2、设计详细介绍了渣浆泵的总体结构，工作原理和结构设计。关键词：叶轮背叶片填料密封33AbstractTheslurrypumpistheextensiveapplyinginthecoal,mineralmountain,metallurgy,electrical,waterconservancy,transportationandsoon.Itismaintoproceedthewaterpowerofthestaticmineral,tailmineral,ashgrain,sedimentsolidmaterialtransportation.Butit

3、sveryseriousovertheabrasionthatflowtheparts.Itsmainbreakageformisoverflowthepartspenetratewithtransformation.Overseriousabrasionthatflowtheparts，itisworseningthepumpinsideflowscharacteristicandoutsidecharacteristics,shortingtheactualservicelifeofthepumpandmakingproductionefficiency

4、lower,enlargingconsumestheinvestmentoftheequipments,andthenaffectingthedevelopmentoftheproduction.Itadoptmanyleaf'snumbertoreducethesingleabrasionofleaf'ssliceforthisdesigningslurrypump,alsoincreasedcombinesoverthethicknessthatflowthepartsthehighdegreeofhardnessinadoptionbearstowhe

5、tthematerialtocometoletupthewearandtear,andempressedanentrancecoversplankdesignastobulgeandsmoothhubcaphead.Adoptedthefillerwhichissealedcompletelytopreventthehighpressureliquidtoleakfromthepumpwithkeepairfromenteringtopumptheinsidecounteracttocarryonthebackleaf'sslicetoequilibrium

6、stalkfacedint.Thisdesignwasdetailedtointroducethetotalconstructionthatslurrypump,theworkprincipledesignswiththeconstruction.Keywords:impellerauxiliaryimpellerthefillerseals33目录摘要…………………………………………………………………………ⅠAbstract……………………………………………………………………Ⅱ一般部分第1章概论………………………………………………………………11.1泵的定

7、义及其用途……………………………………………11.2泵的分类………………………………………………………11.2.1叶片式泵………………………………………………11.2.2容积式泵………………………………………………11.2.3特殊类型的泵…………………………………………2第2章泵的结构设计与计算…………………………………………32.1泵基本参数的确定………………………………………………32.1.1泵吸入口和排除口的确定…………………………32.1.2轴径的初步计算……………………………………32.2叶轮的水力设计…………………………………………………52.2

8、.1叶轮的主要参数的选择和计算……………………52.