torredonjimeno cm3 oc to cc
TRANSCRIPT
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Coll. 9
Performance improvement in grinding systems
Holcim Spain / Torredonjimeno plant / cement mill 3
From open to closed circuit
Luis Llamas Lidn
Francisco Mateos Gmez
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Project phases
Initial situation analysis
Implantation
Budget
Results
Procedures Sustainability
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Initial situation analysis
Throughput before modification
To meet the CEM I 52.5 R specifications in the opencircuit mill is necessary to produce a special clinker type
CEM II/B-M 32.5
CEM II/A-L 42.5 R
t/h kWh/t % clinker %R45um
38 31.6 77 18.5
24 50.0 88 9.0
CEM I 52.5 R 18 62.0 96 --
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Implantation
Flow sheet open circuit (before modification)
Flow sheet closed circuit
Separator (Sturtevant SD-70)
Photos
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a silos
Flow sheet open circuit
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Flow sheet closed circuit
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Separator
Sturtevant SD 70
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Implantation
Photo 1
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Holcim Espaa S. A. 37th Technical Meeting 2002
Implantation
Photo 2
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Budget
Approuved budget:
Feasibility study 30000 Circuit modification 609907 Total budget 639907
Investment total cost 644044
Deviation + 0,64 %
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Results
Results slightly above guaranties
The possibility to produce the CEM I 52.5R withstandard clinker (no more special clinker required)
CEM II/B-M 32.5
CEM II/A-L 42.5 R
t/h kWh/t % clinker %R45um
53 24.5 74 18.8
45 27.1 83 9.0
CEM I 52.5 R 31 36.0 96
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RENDIMIENTO MZ3 A-L/42,5 R
0
5
10
15
20
25
30
35
40
45
50
15.10.2000
06.11.2000
30.11.2000
18.12.2000
18.02.2001
15.03.2001
22.03.2001
29.03.2001
05.04.2001
13.04.2001
20.04.2001
28.04.2001
06.05.2001
14.05.2001
22.05.2001
29.05.2001
08.06.2001
16.06.2001
24.06.2001
29.06.2001
06.07.2001
13.07.2001
20.07.2001
28.07.2001
04.11.2001
12.11.2001
21.11.2001
30.11.2001
07.12.2001
14.12.2001
22.12.2001
29.12.2001
08.01.2002
15.01.2002
22.01.2002
29.01.2002
05.02.2002
12.02.2002
21.02.2002
28.02.2002
07.03.2002
t/h
0
10
20
30
40
50
60
70
80
90
Kwh/t
t/hKwh/t
Adicinescorias
Cambio a
Circuito
cerrado
Performance evolution CEM II / A L 42.5
t/h
Change to closed circuit
kWh/t
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0
102030405060708090
100
1,0 10,0 100,0 1000,0TAMAO DE PARTICULA [m]
SEPARACION
/EFICIENCIA
[%]
Separator Tromp curve (CEM II / A - L 42.5)
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Mill longitudinal sieving
0,00
10,00
20,00
30,00
40,00
50,00
60,00
70,00
Longitud del molino [m]
Re
tenido[%]
0
500
1000
1500
2000
2500
Finur
a[cm2/g]Blaine
19,054,762,381,190,590,300,20,090,0630,045Blaine
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Ball charge compositionComposicin de Carga de Bolas
Planta : Torredonjimeno
Molino : MZ 3 Fch: Febrero 01
1.Compartimiento
Bola [ mm ] Peso [ t ] Porcentaje [%]
90 8,1 26,0
80 12,4 40,0
70 8,1 26,0
60 2,5 8,0
Total 31,0 100
Peso medio de bola [ g ] 1802
Superficie esp. de bolas [m2 / t] 10,0
2.Compartimiento
Bola [ mm ] Peso [ t ] Porcentaje [%]
50 3,5 6,0
40 2,3 4,0
30 8,7 15,0
25 18,6 32,0
20 12,2 21,0
17 12,8 22,0
Total 58,0 100
Peso medio de bola [ g ] 42
Superficie esp. de bolas [m2 / t] 33,4
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Followed procedures
Project
Project definition Process study Separator offers technical evaluation Implementation Start up & fine tuning
Clkosing and transfert
Tools used:
PMA Micrisoft project
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Microsoft Project
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Follow up
FBRICA: TORRE INFORME N: 7
AO: 2000 FECHA: 28/02/01
PERIODO: feb-01
FECHAPROGRAMADA
FECHAPREVISTA
OBSERVACIONES
01.02.00 29.02.0001.03.00 24.04.00
Recepcin, comparacin ofertas 25.94.00 31.05.00
01.06.00 15.06.00
Decisin de ejecutar proyecto 18.06.00 25.07.00
07.08.00 31.08.00
14.08.00 27.09.00
28.09.00 30.09.00
02.10.00 09.02.01
Transformacin M. Cemento III
6
10JEFE DE
PROYECTO:FMG
A la espera de ejecutar la parada del Molino.
Terminacin del montaje previo con el molino en funcionamiento.
PLAZO DEEJECUCIN:
(meses)
INQUIETUDES Y ACCIONES REQUERIDAS:
DESVIACINTEMPORAL:
(das)
Conexin y puesta en marcha
PROGRAMA PARA LAS CUATRO PR XIMAS SEMANAS:
DESCRIPCI N BREVE DE LOS PUNTOS QUE SE CONSIDERAN IMPORTANTES
LOGROS CLAVE DE ESTE PERIODO:Realizacin de suministro .
Realizado
Realizado
Aprobada
Recepcin, comparacin ofertas
Realizacin de los pedidos
Ejecucin trabajos con MZ-III, en marcha
Ejecucin trabajos con MZ-III, parado
Informe Datos actuales
Documento de peticin ofertas
Presentacin estudio
Propuesta de inversin
INDICADORES DE DESARROLLO DEL PROYECTO
HITOS (TTULO)
101.148.000,00 106.471.000,00 107.000.000,00 348.812,00
INDICADORES ECON MICOS (pesetas)
DIRECCI N DEDESARROLLOINDUSTRIAL
PRESUPUESTADO PRESUPUESTO APROBADO PRESUPUESTO PREVISTO DESVIACIN ECONMICA
INFORME DE AVANCEDEL PROYECTO
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Participants
Plant staff:
Plant Manager Production manager Maintenance manager. Quality manager Security chef
Environment chef
HGSR / CTS
K. Breistschmid. S. Ortega.
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Sustainability (1/2)
Mill longitudinal sieving
Mill balls filling degree
Mill material level
Mill ventilation measurement
Separator Tromp curve
Circuit material granulometry
Yearly stop
Separator ventilation
Material grindability
12 months
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Sustainability (2/2)
Separator system inspection
Filter system inspection
Ball wear compensation
Ball charge classification
Weight feeders calibration
Mill internals inspection
Instrument verification
Control loops verification
Delegation of selected plant staff to the yearly Mill Seminarorganised in cooperation with HGRS
12 months