walnut shell

WalnutShellGrains Weuseoverseasadvancedtechnicalprocesstoprocessthewalnutshellgrainswhichisasporousmaterialsforthevitrifiedbondedgrindingwheel.ComparedwithtraditionalporousmaterialsofRefinedNapthalene,ithasmanyadvantages,suchasporeeven,odourless,cheapandeasytooperate,noharmtooperator.Andevenmore,itcanchangefreelyaccordingtogrindingwheelpore.Thus,intheforeigncountries,ithadbeenadoptedwidelyintheindustryofabrasiveabrasivesince1960's. WalnutShellSpecifications Item Content SpecificGravity 1.35 PH 5 WaterMoisture 2-8% OilAbsorption 55-60% Walnutshellabrasivematerialandfiltermaterialaremadefromhighqualitywalnutshellwhichisprocessedintodifferentsizesgrainsbyphysicalprocessing.Itisnon-toxicandpollution-freenewgenerationenvironmentally-friendlymaterial,ithasfeaturesofporous,multi-faceted,easybackwashandlowrunningcost.Itisapplicabletoshipcleaning,contaminatedlandimprovement,metallurgy,printinganddyeing,papermaking,winemaking,leatherworking,petroleumengineering,oilywatertreatment,oilywaterseparation,hardwarejewelry,glasspolishingandgrinding,spectacleframe,golfclubspolishing,oilfieldoilywaterpurification,sewagefilter,walnutshellfilterpacking,industrialwastewatertreatmentandurbanwatersupplyanddrainageengineering.Itistheoptimalwaterpurificationmaterialforvariousfilters. Physico-chemicalProperties Item BulkDensity 16#-36# 0.85±0.05g/cm 46#-80# 0.80±0.05g/cm Granularity 16#-36# 16#ridding=036#siftage≤4% 46#-80# 46#ridding=080#siftage≤2% Color Yellowish-brown ProductSpecifications 8#,10#,12#,14#,16#,20#,24#,30#,36#,46#,60#,80#,100#,120# Walnutfiltermaterialphysicalanalysis Item Content OilContent 0.25% VolumeWeight 850Kg/m3 Porosity 48% MoistureContent 3% OilAbsorption 65% WearRate ≤1.5% ExpansionRatio 0.5% Walnutshellfiltermaterialchemicalanalysis Item Content Ca 0.5% Mg 0.03% Cu 1.31% Na 0.02% Fe 0.02% Mn 0.094% K 0.025% Zn 0.05%