Questionnaire for complete grinding circuits
Please select language: Please select type of modernisation: Type of product: Company: Plant: Contact: Address:
Christian Pfeiffer Maschinenfabrik GmbH Sudhofer Weg 110-112 59269 Beckum
phone: +49 (0)2521 - 849 - 00 fax: +49 (0)2521 - 849 - 123 e-mail: office@christianpfeiffer.de homepage:http://www.christianpfeiffer.de
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GENERAL DATA OF PLANT
Country: Elevation above sea level: Ambient temperatures: min: max: average: Air humidity at average ambient temperature: Power supply: Frequency: Medium voltage: >= Low voltage: >= Control voltage: m C C C % Hz V kW V kW
Control system (PLC): Brand: Type: Year of installation: analog signals: range: Remarks:
1
mA
GENERAL DATA OF GRINDING CIRCUIT
Name of mill circuit: Grinding process: Grinding circuit: Pre-grinding system: Feed to mill: Control concept:
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### Current of bucket elevator: Weighing of separator rejects: Mill power: Sound level (electrical ear): Other: 1 1 max. A
DATA OF MILL
GENERAL DATA Brand of mill: Year of construction: Number of grinding chambers Material discharge Rotation of mill number of rotations:
looking from inlet to discharge
min-1
GEOMETRICAL DATA Length of mill shell: Inside diameter of mill shell: Diameter of material inlet: Clearance 1st compartment: Effective grinding length 1st chamber: Clearance 2nd compartment: Effective grinding length 2nd chamber: Diameter of material outlet: mm mm mm mm mm mm mm mm
MILL DRIVE / MILL BEARING Type of drive: Type of mill bearing: Installed motor power: Absorbed motor power (counter reading): kW kW
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Voltage: Frequency: Current: Power factor of motor:
V Hz A cos j
GRINDING MEDIA
Actual grinding media composition
Brand: Manufacturing method 1st compartment [mm] Mass [t] 2nd compartment [mm] Mass [t] 3rd compartment [mm] Mass [t]
Total mass: Volume load: Wear rate:
Total mass: Volume load: Wear rate:
Total mass: Volume load: Wear rate:
MILL HEAD LINING - INLET Brand: Filling piece: Mill head: Number of rings: 3
outer ring intermediate ring inner ring
[1] Number of plates [-]: Nominal thickness [mm]: Actual average thickness [mm]: Highest wear rate at ring: Material: Manufacturing method:
[2]
[3]
[4]
[5]
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Date of commissioning: Operating time: Expected life time: Remarks: Please attach picture / sketch of wear h h
INTERMEDIATE DIAPHRAGM - TW
between first and second grinding chamber
DIAPHRAGM STRUCTURE Type/ Generation: Brand: Date of commissioning: Material flow control Operating time: Width of diaphragm on mill shell: Diameter of center opening: h mm mm
SLOTTED PLATES Brand: Filling piece: Number of rings: 3
outer ring intermediate ring inner ring
[1] Number of plates [-]: Nominal thickness [mm]: Actual average thickness [mm]: Highest wear rate at ring: Slot width: Direction of slots: Material: Manufacturing method: Date of commissioning: Operating time:
[2]
[3]
[4]
[5]
mm
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Expected life time: Remarks: Please attach pictures / sketch / drawing
BACKSIDE PLATES Brand: Filling piece: Number of rings:
outer ring
5
2. ring 3. ring 4. ring inner ring
[1] Number of plates [-]: Nominal thickness [mm]: Actual average thickness [mm]: Slot width [mm]: Highest wear rate at ring: Material: Manufacturing method: Date of commissioning: Operating time: Expected life time: Remarks:
[2]
[3]
[4]
[5]
h h
Please attach pictures / sketch / drawing
DISCHARGE DIAPHRAGM - ATW DIAPHRAGM STRUCTURE Type/ Generation: Brand: Date of commissioning: Operating time: Width of diaphragm on mill shell: Diameter of center opening: h mm mm
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SLOTTED PLATES Brand: Filling piece: Number of rings:
outer ring
5
2. ring 3. ring 4. ring inner ring
[1] Number of plates [-]: Nominal thickness [mm]: Actual average thickness [mm]: Highest wear rate at ring: Slot width: Direction of slots: Material: Manufacturing method: Date of commissioning: Operating time: Expected life time: Remarks:
[2]
[3]
[4]
[5]
mm
h h
Please attach pictures / sketch / drawing
LINING 1st COMPARTMENT grinding chamber Brand: Type: Design: Fastening system: Effective grinding length: Number of lining plates - mill axial direction: Number of plates per ring: Number of lifter plates per ring: Special plates at first ring: m
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Special plates at manhole: Other special plates: Backing: Nominal thickness of plates: Actual thickness at chamber inlet: Actual thickness at middle of chamber: Actual thickness at end of chamber: Average height of lifters: Material: Date of commissioning: Operating time: Expected life time: Remarks: Please attach pictures / sketch / drawing h h mm mm mm mm mm
LINING 2nd COMPARTMENT grinding chamber Brand: Type: Design: Fastening system: Effective grinding length: Number of lining plates - mill axial direction: Number of plates per ring: Number of lifter plates per ring: Special plates at first ring: Special plates at manhole: Other special plates: Backing: Nominal thickness of plates: Actual thickness at chamber inlet: Actual thickness at middle of chamber: mm mm mm m
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Actual thickness at end of chamber: Average height of lifters: Material: Date of commissioning: Operating time: Expected life time: Remarks: Please attach pictures / sketch / drawing
mm mm
h h
MILL FILTER
Type of filter: Brand: Date of commissioning: Design filter size: Nm/h Am/h at operating temperature: Pre-collector: Filterproduct to: Suction at: Mill inlet: Mill outlet: Filter inlet: Filter outlet: Fan inlet: [daPa] [C] 2 2 C
Designed pressure drop of fan: Designed air flow of fan: at temperature: Installed motor power of fan: Remarks:
daPa Am/h C kW
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MILL FEEDING MATERIAL
Cement types: 3 [%]
Product: Type: Clinker: Gypsum: Limestone: Puzzolana: Slag:
1 [%]
2 [%]
4 [%]
5 [%]
Standard: Feed properties Feed properties
Average moisture Max. moisture Average Max. temperature temperature Max. feed size
[M%] Clinker: Gypsum: Limestone: Puzzolana: Slag:
[M%]
[C]
[C]
[mm]
Specific parameter Feed properties
Grindability Bulk density acc. Zeisel at 3000cm/g [kWh/t] [t/m] Quartz content
Component:
[M%]
Transport equipment
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CIRCULATING BUCKET ELEVATOR Max. conveying capacity: Installed power: Absorbed power: t/h kW kW
FINISH PRODUCT TRANSPORT Max. conveying capacity: t/h
Finish Product
Product: Type: Percent of Total Production [%]: Production rate [t/h]: Fineness acc. Blaine: Residue on [m%]: Circulation load (Sep.-Feed/Sep.-Fines):
Spec. energy consumption (mill counter) [kWh/t]:
Product temperature mill outlet [C]: Product temperature cooler outlet [C]: Water spray [l/h]: Grinding aid: Grinding aid consumption:
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