Equipment for controlling amount of water used for binding dust

Details Equipment for controlling amount of water used for binding dust Equipment for controlling amount of water used for binding dust

E - Fixed Constructions

21

B

E21B 21/08 (2006.01) E21B 21/07 (2006.01) E21B 21/14 (2006.01)

Patent

CA 2739196

The invention relates to equipment for binding dust in rock drilling by means of a drilling apparatus comprising means (11, 9, 22) for supplying flushing air into a drilling hole, means (5 to 8) for separating the formed dust from the flushing air, and means (4 to 17, 19 to 21) for supplying liquid into rock dust formed during drilling in order to bind it. The equipment comprises at least one control member (17; 19) for controlling the amount of liquid to be supplied into the rock dust, the control member (17; 19) comprising a plurality of parallel on/off type valves, which may, one or more at a time, be simultaneously switched open so that different liquid flow rates are achieved.

L'invention concerne un équipement destiné à agglomérer de la poussière lors du forage de roches au moyen dun appareil de forage et comportant des moyens (11, 9, 22) destinés à amener de lair de soufflage dans un trou de forage, des moyens (5 à 8) destinés à séparer la poussière formée de lair de soufflage et des moyens (4 à 17, 19 à 21) destinés à amener du liquide dans la poussière de roche formée au cours du forage afin de lagglomérer. Léquipement selon linvention comporte au moins un organe (17 ; 19) de régulation servant à réguler la quantité de liquide à introduire dans la poussière de roche, lorgane (17 ; 19) de régulation comportant une pluralité de vannes de type « tout ou rien » montées en parallèle que lon peut mettre en position ouverte une à une ou plusieurs à la fois de manière à réaliser différents débits de liquide.

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