饲料制粒

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1、PELLETING制粒MythsvsFacts理论与实践The“BIG”PelletMillatK-State堪萨斯州某加工厂内的大型制粒机ISSUESINPELLETING?有关制粒的话题？PELLETQUALITYVSPRODUCTIONRATE颗粒质量与产量PELLETQUALITYIS:…theabilityofpelletstotakehandlingwithoutgeneratingexcessivefines.颗粒质量是指颗粒抵抗各种处置而不产生过多细粉的能力PELLETTHROUGHPUTIS:…theabilitytofeedthebirds!!!颗粒产量是指能提供

2、给畜禽饲料的数量Formulation配方Grind粉碎Die压模Conditioning调质Dry/Cool冷却器颗粒质量的影响因素PELLETQUALITY颗粒质量FORMATION配方PelletQualityisPrimarilyEstablishedintheConditioner,NotinthePelletDie.颗粒质量形成的第一位点是制粒机的调质器，而不是制粒机压模Formulation配方Grind粉碎Die压模Conditioning调质颗粒产量的影响因素DIERESISTIVEFORCE压模的摩擦阻力压辊挤压力压模的表面反力饲料锲入压辊区防滑阻力压辊旋转方向工

3、作区挤压区成形区压模旋转方向颗粒压模饲料压辊装配MAJORFACTORSAFFECTINGPRODUCTIONRATE影响制粒机产量的主要因素Formulation配方-Fat/Oilcontent油脂含量-AnimalProtein动物来源蛋白质-GrainType谷物种类-GrainMoisture谷物水分含量-PhosphateSource磷源FORMULATION配方Dietformulationisbasedonmeetingthenutrientrequirementsoftheanimalattheleastpossiblecostperton.日粮配制是以最低可能的成

4、本满足畜禽对养分需要Littleconsiderationfor:很少考虑以下问题：-PelletQuality颗粒质量-ProductionRate生产率CONDITIONING:调质：....anymodificationoradditionmadetothemashafteritleavesthemixerandbeforeitreachesthepelletdiechamber...调质是指粉状饲料离开混合机直至到达制粒机压制室前所做的任何改变或添加操作MAJORFACTORSAFFECTINGPRODUCTIONRATE影响生产率的主要因素SteamConditioning

5、蒸汽调质Thelevelofsteamconditioningpossibledependsonthe:蒸汽调质的程度取决于：配方水分含量Formulamoisturecontent配方中油脂含量Formulafat/oilcontent蒸汽质量Steamquality压模阻力和状况Dieresistanceandcondition压辊表面和状况RollsurfaceandconditionMAJORFACTORSAFFECTINGPRODUCTIONRATE影响生产率的主要因素SteamConditioning蒸汽调质Asarule,thehigherthelevelofcondi

6、tioning,thehigherthethroughputandpelletquality.通常来讲，调质的越充分制粒机产量越高，颗粒质量也越好。Condensedsteamactsasalubricant(uptoapoint!!)冷凝蒸汽起到润滑剂的作用（至关重要！！）STEAMCONDITIONING蒸汽调质Steamhastheabilitytocarryandtransferbothheatandmoistureefficientlythroughtheprocessof“CONDENSATION”.蒸汽通过凝结过程，能高效传递热与水分STEAMCONSIDERATION

7、S!!蒸汽需考虑的事项-质量？Quality?保温处理*Insulation汽水分离器*Traps阀*Valves-压力？Pressure?压力要求稳定*ConstantnotFluctuating蒸汽的热值变异要小*Makeslittledifferenceinheatcontent.CONDITIONINGLTERNATIVES调质的种类SteamAddition-----常压蒸汽Atmospheric.加压蒸汽-----压力蒸汽Pressure.Wa