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    3 chambers mill              
    TECHNICAL DATA              
    Email
    Contact name
    Cement plant
    Mill number
     
    Supplier
    dry
    Plant process
    wet
    Mill diameter m
     
    Mill length m
    lateral
    Installed power kW   bi-lateral  
    Speed of trotation rpm closed central clockwise
    Type of transmission
    open annular anti-clockwise
    Type of circuit
    Rotation
     
    Water injection ch.1 l/h yes
    Water injection ch.3 l/h no
    Mill control
    If yes, type of control
    Compartments Chamber 1
    Chamber 2
    Chamber 3
    Inlet trunnion diameter m
    Usefull length m m m
    Type of lining
    Average thickness mm mm mm
    Type of diaphragm
    Diaphragm slots width mm mm mm
    Central screen diameter m m m
    Ball charge in metric tons
    Diameter 100mm t
    Diameter 90mm t
    Diameter 80mm t
    Diameter 70mm t t
    Diameter 60mm t t
    Diameter 50mm t t
    Diameter 40mm
    t t
    Diameter 30mm
    t t
    Diameter 25mm
    t t
    Diameter 20mm
    t
    Diameter 17mm
    t
    Diameter 15mm
    t
    Total t t t
    Filling degree % % %
    Pregrinding (if exists)
     
    Type
    first
    Supplier
        second
    Model
    closed dynamic third
    Type of circuit
    open static fourth
    Installed power kW
    Separator
    Type
    Generation
     
    Supplier
    no  
    Model
    bag bag
    Diameter m
    electrostatic electrostatic
    Ventilation m3/h at °C
    Filter (only for separator)
    Pressure avalaible mmH2O
    Mill ventilation
    Type
    Capacity m3/h at °C
    Pressure avalaible mmH2O
    Kiln type
    PRODUCTION DATA              
    Mill absorbed power kW
    Pregrinding absorbed power kW
    Feed components Clinker Gypsum Slag Limestone
    Temperature °C
    Moisture %H2O
    Hardness
    Clinker mineralogy %C3S %C4AF %Free silicate
    %C2S %C3A %SiO2
    Granulometries (%residues cumulated)
    Sieves between brackets are example. You can change with similar sieves
    Clinker Gypsum Slag Limestone
    (50mm)
    (25mm)
    (10mm)
    (5mm)
    (2,5mm)
    (1mm)
    (0,5mm)
    (0,25mm)
    (0,09mm)
    Types of production Type 1 Type 2 Type 3 Type 4
    Production type name
    % clinker
    % gypsum
    % slag
    % limestone
    Blaine cm2/gr
    Residue 90µ %
    Residue 63µ %
    Residue 45µ %
    Residue 32µ %
    Grinding aid gr/t
    Production t/h
    Mill specific energy kWh/t
    Pressure at mill outlet mmH2O
    Cement temperature °C
    Pregrinding specific energy kWh/t
    % of production
    Circulation factor (Feed/Fines)
     
         
    VISIT OF THE MILL     good   good no good
    Cement type
    regular
    regular small regular
    Chamber 1
    bad
    worn out hard bad
    Measured volume load % a lot of liners broken deformed very hard reverse
    Lining condition
    lot of broken balls
    Maximum ball diameter mm
    Minimum ball diameter mm
    Ball charge condition
    Material level under/over balls    
     
    Coating on lining
    no good
    good
    Coating on balls
    a bit regular
    regular
    Uncrushed particles at the diaphragm
    a lot bad
    bad
    Diaphragm condition
    plates and grids broken
    Maximum width of slots mm
    Slots blocked
    Central screen condition
    Other comments
    Chamber 2
    Measured volume load %
    Lining condition
    Maximum ball diameter mm
    Minimum ball diameter mm
    Ball charge condition
    Material level under/over balls
    Coating on lining
    Coating on balls
    Uncrushed particles at the diaphragm
    Diaphragm condition
    Maximum width of slots mm
    Slots blocked
    Central screen condition
    Other comments
    Chamber 3
    Measured volume load %
    Lining condition
    Maximum ball diameter mm
    Minimum ball diameter mm
    Ball charge condition
    Material level under/over balls
    Balls classification
    Coating on lining
    Coating on balls
    Uncrushed particles at the diaphragm
    Diaphragm condition
    Maximum width of slots mm
    Slots blocked
    Central screen condition
    Other comments
    GRANULOMETRIES RESULTS              
    Cement type
    Samples taken inside the mill
    % residues cumulated
    Sieves between brackets are example. You can change with similar sieves
    Chamber 1 Sample 1 Inlet Sample 2 Sample 3 Sample 4 outlet
    Chamber 2 Sample 1 Inlet Sample 2 Sample 3 outlet
    Chamber 3 Sample 1 Inlet Sample 2 Sample 3 Sample 4 Sample 5 Sample 6 Outlet
    Samples taken in the circuit
    Samples depend of the kind of circuit, the example below is for a traditional circuit
    Laser analysis is the best one to evaluate the separator
    % residues cumulated
    Sieves between brackets are example. You can change with similar sieves
    Mill outlet Separator feed Separator tails Separator fines Filter product Final product
    Don't forget to send us the flowsheet of the installation to assistance@thecementgrindingoffice.com    
    Thank you in advance!              
                   
    www.thecementgrindingoffice.com
    All rights reserved © 2012-2015 The Cement Grinding Office