Diseño de Voladuras en Minas a Cielo Abierto

May 24, 2019 | Author: Yaitho Krabath Hyuga | Category: Explosive Material, Mining, Html, Ciencia, Tecnología
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La elección de un método de explotación de un yacimiento mineral se basa principalmente en una decisión económica (Costo...

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INGENIERIA DE MINAS 



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Home  Recursos Didácticos  Apuntes  Diseño y Operaciones de Minas a Cielo Abierto  Diseño de Voladuras en Minas a Cielo Abierto

Diseño de Voladuras en Minas a Cielo Abierto A bierto Joseph Alberto / 18 abr abril il,, 20 20112 / DISEÑ DISEÑO O Y O PER PERAC ACIONE IONES S  DE MINAS MINAS A CIELO  ABIERTO , RE RECURSOS CURSOS DI DIDÁCTICOS DÁCTICOS / 2 COME CO MENTARIOS NTARIOS /



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LO MÁS M ÁS VISITADO VISITADO

OFERTAS DE TRABAJO operación ión unitaria unitaria o proceso proc eso productivo de “Voladura”  La operac  , tiene como objetivo el arrancar el material involucrado desde su lugar original, de modo que este material triturado puede ser cargado y retirado por los equipos respectivos (y procesado según se requiera), por lo que este material tendrá que cumplir con una granulome granulometría tría y una disposición espacial apta para los posterior posteriores es procesos procesos asociados.

South Perú: Progra de Becas – Prácti

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La proyección proyecc ión del material mat erial es también tambi én un tema t ema muy importante, ya que no queremos que el material quede esparcido en un área muy grande, sino que deberá quedar dispuesto espacialmente de modo que el equipo que se encargue de su manejo posterior pueda hacerlo en condiciones acordes a su diseño de operación.

Bambas 2015

Algunas formas para el material tronado son las siguientes:

21 Ag Agos osto to,, 20 20114 /

25 Juni unio, o, 201 015 5 /

Becarios Southern Peru 2015 – Practicas Profesionales Prácti Profes 2013 de Volcan Comp Miner 12 Septie 20 12 /

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Dimensionamiento de Equipos: Carguío y Transporte 21 Ab Abri ril, l, 20 20112 /

En el caso a) se tiene una “ola” de mayor altura y menor expansión, ideal para la operación de palas cable, ya que se posiciona frente a la saca sin tener que realizar muchos movimientos. Se puede agregar que reviste bastante riesgo el circular en las cercanías de la ola de material. material. El trabajo de los equipos de apoyo apoyo son mínimos. mín imos. La L a Voladura se ha h a realizado de modo que la proyecc ión sea mínima. En el e l caso b) se tiene una “ola” de altura y expansión intermedia, recomendable para la operación de palas hidráulicas, ya que se posiciona frente a la saca y deberá realizar algunos movimientos. Se puede agregar que no reviste mucho riesgo el circular en las cercanías de la ola de material. El trabajo de los equipos de apoyo es considerables.

Dimensionamiento de Equipos: Voladura 20 Abri Abrill, 201 2012 2 /

Dimensionam de Equipos: Perforación 20 Abril, 20 12 /

ndices de Operación. (Asarco) 19 Abr Abril il,, 201 012 2 /

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Definir el tonelaje requerido para la tronadura. Diseñar la tronadur tronadura. a. Chequeo de la zona a tronar. Garantizar la seguridad de la operación. Materializar el diseño en terreno. Realizar el amarre. Efectuar la voladura. Chequear la zona volada. Chequear resultados. Incorporar Incorpor ar dichos resultado resultadoss al sistema de información.

DEFINIR EL TONELAJE T ONELAJE REQUERIDO PARA PARA LA  VOLADURA. Para ello se debe tomar en cuanta los requerimientos de producción y movimiento de materiales. Con esta información podremos definir el tonelaje a remover y los lugares de los cuales se tendrá que perforar, tronar y retirar el

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CHEQUEO DE LA ZONA A VOLAR. Antes de realizar la carga del explosivo en los pozos deberá chequearse la zona involucrada, involu crada, ya que qu e deberá deberá cumplir cumpli r con los requerimientos requerimient os de diseño. Este chequeo consiste principalmente en verificar si la cantidad de pozos y su calidad cumple con las l as impuestas por el diseño. En el caso c aso de no ser así as í deberán realizarse actividades act ividades correctivas c orrectivas para solucionar dichos inconvenientes, como por ejemplo el relleno de tiros sobre perforados (para que no queden hoyos), repaso de perforación en tiros cortos

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voladura.

REALIZAR EL AMARRE. Una vez cargados los pozos y chequeados, ch equeados, se realiza el amarre a marre a la troncal troncal,, según lo especificado por el diseño (garantizando que se cumplirá con la secuencia estipulada). Con los retardos se debe hacer cumplir la condición de que todos los tiros hayan sido iniciados antes de que detone el primer tiro.

EFECTUAR EFECTU AR LA VOLADURA

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DE INFORMACIÓN. Como en todas las operaciones deberá registrarse los resultados en un sistema de información que permita fundamentar posteriores variaciones del diseño en pos de una operación más eficiente. Otra forma que existe para medir resultados dicen relación con las operaciones posteriores y el manejo de índices como: Granulometría.

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1

17 metros

16.5 metros

Se realiza repaso del tiro

17.05

2

17 metros

18 metros

Se realiza relleno con detritus

17.00

3

17 metros

17 metros

OK

17.00

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16

Presencia de Agua (2 metros aprox.)

Explosivo especial especial carga de fondo

17

Presenc ia de Agua (1.4 metros aprox.)

Explosivo especial especial carga de fondo

18

Presenc ia de Agua (1 metro aprox.)

Explosivo especial especial carga de fondo

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No esté afectada por restricciones (por ejemplo cerca del muro).

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Los términos Primera, Segunda, Tercera, Última corrida, dependerán de la mina

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