Fragmentacin y Clculo del ndice de Voladura(Blast Index)Basados en La Teora de Kuz-Ram Modificado por el JKRMCEl ndice de Voladura Modificado por ASP Blastronics

Operaciones Mina y Planta de Procesos, piden muy buena fragmentacin del material volado.Seguridad, implica voladura de control, lo cual sacrifica la fragmentacin, en beneficio de la estabilidad de los taludes.Voladura tiene tres grandes clientes

Criterios para determinar los parmetros de Factor de CargaModelo Original para el Calculo del ndice de Volabilidad, esto fue desarrollado en una mina de hierroEste ndice fue desarrollado por Lilly, y nos da una idea de cuan fcil o difcil es volar una roca.BI = 0.5(RMD + JPS + JPO + SGI + RSI)Donde:RMD=Descripcin del macizo rocosoJPS =Espaciamiento de las juntas planaresJPO=Orientacin de las juntas planaresSGI=Gravedad especfica (T/m3)RSI=Dureza de al roca (Hardness)RSI = 0.05 (RC)RC = Resistencia a la Compresin Simple (Mpa)

Criterios para determinar los parmetros de Factor de Carga y de RocaCalculo del ndice de Volabilidad, en funcin de las particularidades de la minaASP Blastronics, plante el siguiente criterio para calcular el Blast Index

Criterios para determinar los parmetros de Factor de Carga y de RocaCalculo del ndice de VolabilidadEn marzo del 2006 la empresa ASP Blastronics, plante el siguiente criterio para calcular el Blast IndexBI=(items) 2

FE=0.015xBI

FC=0.004xBI

A = 0.12xBI

Criterios para determinar los parmetros de Factor de Carga y de RocaCalculo del ndice de VolabilidadCriterio de Lilly modificado para LGN, en Junio de 2007BI=0.55(items)

FE=0.015xBI

FC=0.004xBI

A = 0.12xBIEstamos dando un mayor peso a la densidad que la otorgada por Lilly.

Modelo de Kuz-Ram para calcular el Tamao Promedio de Roca a VolarEl tamao de la roca no puede ser un numero absoluto, como se ve en el grafico la fragmentacin se mueve en un determinado rango.

Este modelo no incluye los finos generados en el disparoModelo Kuz RAM para obtener un valor promedio de Fragmentacin

x50= AK(-0.8) x Qe(1/6) x (115 / SANFO)19/30

Donde:

X50: Tamao medio de los fragmentos (m)A: Factor que depende de la RocaQe: Consumo especfico por taladro (Kg)SANFO: Potencia del explosivo respecto al ANFOK: Factor de carga (Kg/m3)

Modelo de Rosin Rammler PC=1-e-( X/X50)n

Donde:PC: Proporcin de roca retenida en una apertura de malla XX: Abertura de MallaX50: Tamao medion: ndice de Uniformidad

El calculo n esta en funcin de parmetros geomtricos:

n = (22-14B/D) x (1 W/B) x ((1+S/B)/2)0.5 x ((abs(LCF-LCC)/LCT)) + 0.1)0.1 x LE/H

Donde:B=Burden (efectivo de acuerdo a la salida)S=EspaciamientoD=Dimetro (mm)W=Desviacin de la perforacin (m)LCF=Longitud de la carga de fondo (m)LCC=Longitud de la carga de columna (m)LCT=Longitud total de carga (m)LE=Largo del explosivo sobre el piso (m)H=Altura del Banco (m)

Variables que intervienen en la Fragmentacin de Rocas

Criterios para determinar los parmetros de factor de cargaParmetros de la roca y datos de explosivos

Criterios para determinar los parmetros de factor de cargaComparacin de resultados en banco de 10m

Modelo matemtico de de Fragmentacin Kuz-RamPrediccin de la Fragmentacin en LGN

***Company taking another stab to get it rightMerging all five Intranets into one Wants this to succeed because it will have real benefits for the company and each employeeReview objectives probably had the same objectives the first time around

This time, the process is different

*Company taking another stab to get it rightMerging all five Intranets into one Wants this to succeed because it will have real benefits for the company and each employeeReview objectives probably had the same objectives the first time around

This time, the process is different

*Company taking another stab to get it rightMerging all five Intranets into one Wants this to succeed because it will have real benefits for the company and each employeeReview objectives probably had the same objectives the first time around

This time, the process is different

*Company taking another stab to get it rightMerging all five Intranets into one Wants this to succeed because it will have real benefits for the company and each employeeReview objectives probably had the same objectives the first time around

This time, the process is different

*Company taking another stab to get it rightMerging all five Intranets into one Wants this to succeed because it will have real benefits for the company and each employeeReview objectives probably had the same objectives the first time around

This time, the process is different

*Company taking another stab to get it rightMerging all five Intranets into one Wants this to succeed because it will have real benefits for the company and each employeeReview objectives probably had the same objectives the first time around

This time, the process is different

**Company taking another stab to get it rightMerging all five Intranets into one Wants this to succeed because it will have real benefits for the company and each employeeReview objectives probably had the same objectives the first time around

This time, the process is different

*Company taking another stab to get it rightMerging all five Intranets into one Wants this to succeed because it will have real benefits for the company and each employeeReview objectives probably had the same objectives the first time around

This time, the process is different

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