MEMORIA DE CALCULO
ESTUDIO CONCEPTUAL PROYECTO QULPI URQU
PROYECTO N° 01
MEMORIA DE CÁLCULO TRADE OFF MÉTODO DE MINADO DISCIPLINA: MINAS UNIVERSIDAD UNIVERSID AD CONTINENTAL Aprobado por: Asesor Organizado Desarrollado
: : :
J. Cordova Universidad Nacional Mayor de San Marcos Grupo de Estudios Inplamin
REV.
ELABORADO
REVISADO
EMITIDO PARA
FECHA
CHK'D
A
G.E. Inplamin
J. Cordova
Revisión interna
24/09/2018
√
B
G.E. Inplamin
J. Cordova
Revisión interna
29/09/2018
√
0
G.E. Inplamin
J. Cordova
Revisión interna
8/10/2018
√
comentarios: Documento elaborado por grupo de estudios inplamin
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Universidad Continental, AV. San Carlos 1980,Huancayo
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Anexo G
HOJA DE CALCULO
Rev.: 0 Fecha: 08/10/2018
TABLA DE CONTENIDO Pág.
1.0 ALCANCE ……………………………………………………………………………… ……………………………………………………………………………………… ………
3
2.0 OBJETIVOS ……………………………………………………………………………………
3
3.0 BASES DE CÁLCULO CÁLCULO ……………………………………………………………………… ………………………………………………………………………
3
4.0 DESCRIPCIÓN ………………………………………………………………………… ………………………………………………………………………………… ………
3
5.0 PROCEDIMIENTO ………………………………………………………………………… …………………………………………………………………………… …
3
6.0 HERRAMIENTA COMPUTACIONAL ………………………………………………………
4
7.0 RESULTADOS …………………………………………………………………………………
4
8.0 CONCLUSIONES …………………………………………………………………………… ……………………………………………………………………………… …
4
9.0 ANEXOS …………………………………………………………………………………… ……………………………………………………………………………………… …
4
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Anexo G
HOJA DE CALCULO
Rev.: 0 Fecha: 08/10/2018
1.0 ALCANCE Determinar el método de minado mas apropiado para el Estudio Conceptual del Proyecto QULPI URQU
2.0 OBJETIVOS Determinar el Cut-Off por cada método de minado propuesto el c ual permita una explotación de 3000 tpd para el metodo Cut & Fill, 3500tpd para Sub level Stoping y 3500tpd para Bench & Fill. Métodos de Minado Pre-Seleccionados
CFS BFS SSL
Cut & Fill Stoping Bench and Fill Stoping (con relleno) Sublevel Stoping Longitudinal(con relleno)
3. 3.00 BASE BASES S DE DE CÁL CÁLCU CULO LO Los cálculos están basados en la siguiente información: ANEXO B
Reporte de Recursos
ANEXO C
Cálculo del Dimensionamiento de Producción
ANEXO D
Benchmarking Método de Explotación
Precios de Metales
Cálculo del Cut Off
Parámetros de Cálculo
Proporcionado por la organización
Parámetros de Cálculo
Proporcionado por la organización
4.0 DESCRIPCIÓN Para determinar el método de minado que se adecue al yacimiento se realizaron los siguientes pasos: 1.- Determinar el cut off y reporte de recursos por método de mi nado. 2.- Calculo de costo operativo 3.- Calculo del NSR por método de minado 4.- Determinar Margen bruto por método de minado
5. 5.00 G.E. .E. Inp Inpla lami min n Reservas Descripción Planta Admi Admini nist stra raci ción ón Transporte
Unid. US$/t US$/ US$/tt US$/t
C&F
SLS
B&S
11.0 1.8 0.0
11.0 1.8 0.0
11.0 1.8 0.0
6.0 HERRA HERRAMIEN MIENTA TA COMPUTA COMPUTACIO CIONA NAL L Las herramientas computacionales utilizadas son las hojas de cálculos Excel.
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Anexo G
HOJA DE CALCULO
Rev.: 0 Fecha: 08/10/2018
7.0 RESULTAD TADOS Realizando el Cálculo de los factores del NSR y la ley equivalente se tienes las siguientes fórmulas (Ver anexo 9.1 donde se muestra el procedimiento de calc ulo)
7.1.- NET SMELTER RETURN (NSR) = ∗ . . + ∗ . . + ∗ . .
7.2.- LEY EQUIVALENTE = + ∗
( ( ∗ ó ó ) ( ∗ ó ó )
+ ∗
( ∗ ó ) + ⋯ ( ( ∗ ó ó )
= ∗ . . + ∗ .840 + ∗ . .
7.3.- RESUMEN Método de Minado Bench and Fill Stoping Sub Level Stoping Stoping Cut and Fill
Cut - Off CuEq % 3.173 3.104 3.451
NSR US$/t 125 125 125
8. 8.00 CONC CONCL LUSIO USIONE NES S oman o en con cons erac n os cos costo e m na o esca sca a os a un r tmo e pro ucc n e tp para e metodo Cut & Fill, 3500tpd para Sub level Stoping y 3500tpd para Bench & Fill se obtuvo los Cut-Off equivalentes en zinc por método de minado obteniendo que el menor c ut-off es para el Sublevel Stoping 3.104% ZnE
9.0 ANEXOS 9.1 Anexo I. Hoja de Calculo detallada: SELECCIÓN DE MÉTODO DE MINADO
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============================ ========================================== ============================ =========================== =========================== ============================ ============================ ===================== ======= BENCH ZONE ZONE CUTOFF INSITU INSITU RUN OF IN INSITU GRADES TOE NAME NO. ORE ORE MINE ZN ZN PB AG ( BC BC MS MS ) ( TO TO NN NN ES ES ) ( TO TO NN NN ES ES ) ============================ ========================================== ============================ =========================== =========================== ============================ ============================ ===================== ======= TOTALS
POTVT
DENS
1
1 >= >= >= >= >= >= >= >= >= >=
0 1 2 3 3.1 3.17 3.45 4 5 10
3736374 37 3736121 36 3631307 34 3406868 33 3 374672 33 3361955 32 3 260408 30 3069428 24 2488477 336414
10559945 10559249 10268598 96 9643992 95 9 554410 95 9 518977 92 9 236217 87 8703071 70 7078357 990186
10559945 10559249 10268598 96 9643992 95 9 554410 95 9518977 92 9 236217 87 8703071 70 7078357 990186
6.424 6.425 6.559 6.823 6.859 6.873 6.981 7.18 7.791 12.23
0.413 0.413 0.422 0.443 0.445 0.446 0.453 0.465 0.511 0.886
27.298 27.3 27.88 28.959 29.125 29.189 29.711 30.566 33.673 78.767
4.254 4.255 4.302 4.332 4.343 4.347 4.38 4.443 4.65 6.182
2.827 2.827 2.829 2.832 2.832 2.833 2.834 2.837 2.846 2.947
2
2 >= >= >= >= >= >= >= >= >=
1 2 3 3.1 3.17 3.45 4 5 10
33 3305742 33 3304085 32 3282216 32 3 279751 32 3278026 32 3 271959 32 3230499 30 3088631 855418
93 9314306 93 9309730 92 9249228 92 9 242398 92 9 237614 92 9 220751 91 9105527 87 8710224 24 2439698
93 9314306 93 9309730 92 9249228 92 9 242398 92 9237614 92 9 220751 91 9105527 87 8710224 24 2439698
8.224 8.228 8.265 8.269 8.271 8.28 8.338 8.506 11.374
0.441 0.441 0.443 0.443 0.443 0.443 0.446 0.454 0.724
23.263 23.274 23.364 23.373 23.379 23.403 23.521 23.93 28.072
4.462 4.464 4.476 4.477 4.479 4.483 4.505 4.538 4.893
2.818 2.818 2.818 2.818 2.818 2.818 2.819 2.82 2.852
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------->= 0 7042117 19874251 19874251 7.268 >= 1 70 7 041863 19873555 19873555 7.268 >= 2 69 6935392 19578329 19578329 7.352 >= 3 66 6689084 18893220 18893220 7.529 >= 3.1 6 654423 18796808 18796808 7.552 >= 3.17 66 6 639980 18756591 18756591 7.562 >= 3.45 6 532368 18456968 18456968 7.63 >= 4 62 6 299926 17808598 17808598 7.772 >= 5 55 5577107 15788581 15788581 8.185 >= 4 62 6299926 34 3429884 34 3429884 11.621 >= 5 5577107
0.426 0.426 0.431 0.443 0.444 0.445 0.448 0.455 0.48 0.771
25.407 25.408 25.69 26.22 26.296 26.328 26.559 26.964 28.298 42.708
4.352 4.352 4.379 4.402 4.409 4.412 4.431 4.474 4.588 5.265
2.823 2.823 2.824 2.825 2.825 2.826 2.826 2.828 2.832 2.879
TOTALS
G.E. Inplamin G.E. Inplamin G.E. Inplamin
SUMMARY
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Anexo G
HOJA DE CALCULO
Rev.: 0 Fecha: 08/10/2018
SELECCIÓN DEL MÉTODO DE MINADO Bench and Fill
Sub level Stoping
Cut and Fill
tp d
3,500
3,500
3,000
Ley Corte Corte Eq_Zn Eq_Zn % - CutOff CutOff Margi Marginal nal
%
0.664
0.664
0.664
Recursos Minerales Marginales
m
19,874,251
19,874,251
19,874,251
Zn Pb Ag Zn E q % NSR
% % Oz/t % US$/t
7.268 0.426 25.407 8.642 125
7.268 0.426 25.407 8.642 125
7.268 0.426 25.407 8.642 125
Mina Planta Administración Transporte
US$/t US$/t US$/t US$/t
33 11.00 1.80 0.00
32 11.00 1.80 0.00
37 11.00 1.80 0.00
TOTAL
US$/t
46
45
50
Ley Corte Eq_Cu %
%
3.173
3.104
3.451
t
Medido, Indicado 18,756,591
Medido, Indicado 18,796,808
Medido, Indicado 18,456,968
7.562 0.445 0.846 7.866 114
7.552 0.444 0.845 7.856 113
7.630 0.448 0.854 7.936 115
ITEM
Unidad
Producción
Costo de Operación (OPEX)
Tipos de Mineral Clase de Recursos Recursos Zn Pb Ag ZnE G.E. Inplamin NSR G.E. Inplamin Recuperación Dilu G.E. Inplamin
% % Oz/t % US$/t % %
82 18
80 15
90 13
Reservas Minables (*)
t
18,148,877
17,293,063
18,770,736
Zn Pb Ag Zn E q %
% % Oz/t %
6.408 0.377 0.717 6.666
6.567 0.386 0.735 6.831
6.752 0.396 0.756 7.023