Sistemas y requisitos de limpieza de trigo: una guía para el procesamiento de trigo, Diapositivas de Ingeniería de Procesos

¡Descarga Sistemas y requisitos de limpieza de trigo: una guía para el procesamiento de trigo y más Diapositivas en PDF de Ingeniería de Procesos solo en Docsity!

Wheat Cleaning

Sunil Maheshwari

Siemer Milling Company

Teutopolis, Illinois

IAOM Inaugural South Asia Region Meetings Delhi, India: December 3-4 2018 Bangalore, India: December 6-7, 2018

Targets of the Cleaning Section

 Blending of Wheat (for consistency in finished product)  Removal of Coarse Impurities  Removal of Dust  Removal of Ferrous Metals  Removal of Sand and Fine Particles  Removal of Stones  Removal of Husk and Light Particles  Removal of Long and Round Particles  Surface Treatment for Bacteria Count Reduction  Moisture Measurement  Removal of Non-Wheat Material  Removal of Wheat not Suited for Milling

st

Cleaning Section

Soft Wheat

Special Cleaning House Requirements:  Removal of Foreign Seeds (Corn, Soy, Smell, )  Vomitoxin Infestation (Surface Treatment, Impacting, Aspiration)  Only Short Temper Required due to Soft Kernel Structure

Hard / Soft / Durum Wheats

Wheat Cleaning Requirements

Hard Wheat

Special Cleaning House Requirements:  Removal of Foreign Seeds (Corn, Soy…)  Medium Temper Time Required – 12 – 24 hours Recommended  Additional Surface Treatments Required for Low Bacteria Counts (Peeling)

Hard / Soft / Durum Wheats

Wheat Cleaning Requirements

Simple Cleaning

Section Flow

Sheet

High Standard

Cleaning Section

Flow Sheet

MagnetMMUA MSDLScale ElevatorMGEL ElevatorMGEL

1. BK Depot TemperingBins IndicatorLevel MSDLScale ElevatorMGEL MagnetMMUA MagnetMMUA ConveyorScrewNFAS ScourerMHXS BalancerFlow MZAHScrew ConveyorNFAS IndicatorLevel IndicatorLevel dischargerVibro- MFVH DampenerMOZL Fluid Flow GovernorMOZF IndicatorLevel Wheat BinsRaw IndicatorLevel HopperOutletMFAK BalancerFlow MZAH IndicatorLevel ConveyorScrew NFAS AspirationChannelMVSG IndermediateSeparatorMANA Low Pressure FilterMVRT MHTPFan Low Pressure FilterMVRT MHTPFan AspirationChannelMVSG IndermediateSeparator MANA ScourerMHXS SterilatorMJZG DestonerMTSC MHTPFan IndermediateSeparatorMANB AspirationChannelMVSG SeparatorMTRB Autom.MoistureControl Unit MYFC S ElevatorMGEL Optical SorterSORTEXMSOB Depot Cleaning House Designed According to

Application / Requirements

Trieur Combi-cleaningMachine MagneticSeparator Intermediate Separator Trans- flowtron Elevator Elevator Optionalbroken kernel sorting Tempering bins Screw IntermediateSeparator MagneticSeparator Flow Balancer Elevator Scourer AspirationChannel

1. BK Trans- flowtron MagneticSeparator «Turbolizer»Dampener ControllerMoisture Scourer AspirationChannel Screw Raw wheatbins AspirationChannel Optional Factors for Blending of Wheat  Adjustment of the Protein Content of the Flour  Adjustment of the Gluten Characteristics of the Flour  Adjustment of the Price of the Wheat Mixture  Production of Appropriate Flour Quality for the End User

Wheat Blending – Transflowtron

Wheat Cleaning System

Traditional Design

Wheat Cleaning System

Milling Separator

 Separation Based on Particle Size  Consists of Several Sieves  May be Combined with Aspirator Sections

Wheat Cleaning System

Destoner  Eliminate Heavy Impurities such as Stones  Design offers less flexibility than the gravity separator and requires more fine-tuning.  Separates the material into four groups by density:  Stones and other Heavy Impurities  Whole Clean Grain  Low Density and Damaged Kernels  Dust  The volume of air and the inclination of the deck can be adjusted to suit the grain characteristics and the degree of separation required.

Wheat Cleaning System

Disc Separator

 Uses the same principles as the cylinder separator, but instead of one, long cylinder, uses a series of indented, hardened discs.  Typically handles a higher capacity than a cylinder separator.  More efficient and flexible machine than the cylinder separator.  The wheat is picked up in hundreds of indentations that are designed to pick up and discharge small particles.  Impurities will be conveyed to the tail end of the machine and discharged into the screenings stream.

Separator with Aspiration Channel Concentrator Destoner The Combi-Cleaner was designed to combine the functions of several individual machines.

Wheat Cleaning System

Combi-Cleaner

Stone Bucket Straw Shriveled Wheat Chaff Sand, Broken Kernels, Small Seeds Shriveled Wheat Light Particles Coarse Impurities Corn, Soy, Mud Balls

`

`

Clean Wheat Heavy and Light Fraction

Combi-Cleaner - Fractions

Input Aspirator Aspirator Separator Destoner

RK (Round Kernels) LK (Long/Large Kernels) LKNL (^) RKNL RKNL = Resorting Cylinder Round Kernels LKNL = Resorting Long and Large Kernels

Indented Cylinder

Disc Separator

Shape Separation Through Indents

Indented Cylinder

Working Principle