A blast movement monitor and method for determining the...

F - Mech Eng,Light,Heat,Weapons – 42 – D

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F42D 3/04 (2006.01) F42D 99/00 (2009.01) G08C 17/00 (2006.01)

Patent

CA 2468576

A method for measuring the movement of boundaries between different portions of a heterogeneous rock body is disclosed. The method comprises placing a plurality of blast movement monitors 109 in a rock body prior to blasting and noting the position of each blast movement monitor. The rock body is then blasted to break it up into a plurality of pieces. Thereafter the position of the blast movement monitors 109 is located and based on this the boundaries of rock portions can be adjusted to account for the blast. This leads to a more accurate reporting of different ore bodies to the appropriate processor in a heterogeneous rock body. An apparatus for carrying out the method is also disclosed. The apparatus comprises broadly a said monitor 109 and a receiver. The monitor 1 comprises a transmitter 109 received within a casing 111 that in turn is received within a housing 126. Further the casing 111 can move within the housing 126 and self right so that it always transmits its signal in an upright direction.

L'invention concerne une méthode de mesure du mouvement des limites entre les différentes parties d'une roche hétérogène. La méthode consiste à placer plusieurs moniteurs de mouvement d'explosion (109) dans la roche avant le sautage et de noter la position de chaque moniteur de mouvement d'explosion. On fait alors sauter la roche pour la briser en une pluralité de morceaux. Par la suite, la position des moniteurs de mouvement d'explosion (109) est localisée et selon cette position, les limites des parties de la roche peuvent être ajustées pour tenir compte du sautage. Ceci permet d'établir un rapport plus précis sur les différents corps minéralisés pour le transformateur approprié de la roche hétérogène. Un appareil pour appliquer cette méthode est également présenté. L'appareil comprend en gros un moniteur (109) et un récepteur. Le moniteur (1) comprend un émetteur (109) logé dans un contenant (111) qui, à son tour, est logé dans un boîtier (126). De plus, le contenant (111) peut se déplacer dans le boîtier (126) et se redresser automatiquement de sorte qu'il transmet toujours son signal en direction verticale.

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