Improved dust separation apparatus

Details Improved dust separation apparatus Improved dust separation apparatus

A - Human Necessities

47

L

A47L 9/16 (2006.01) B04C 5/185 (2006.01)

Patent

CA 2222537

The invention provides apparatus for separating dirt or dust from an airflow comprising a frustoconical cyclone having a tangential air inlet located at or adjacent the end of the cyclone having the larger diameter and a cone opening located at the end of the cyclone having the smaller diameter. A collector is arranged so as to surround the cone opening and has a base surface facing towards the cone opening. According to the invention, the distance between the cone opening and the base surface is either less than 8 mm or between 30 mm and 70 mm. This allows the apparatus to be reduced in size without substantially affecting the separation efficiency.

La présente invention concerne un dispositif (10) permettant de séparer d'un flux d'air la saleté ou la poussière. Ce dispositif est constitué d'un cyclone tronconique (12) pourvu, d'une part d'une admission d'air (16) tangentielle située au niveau de ou à proximité de l'extrémité de grand diamètre du cyclone (12), et d'autre part d'un orifice de cône (18) situé à l'extrémité de petit diamètre du cyclone (12). Un collecteur (20) disposé de façon à entourer l'orifice (18) du cône présente une surface de base (24) orientée vers l'orifice (18) du cône. Selon la présente invention, la distance entre l'orifice (18) du cône et la surface de base (24) est inférieure à 8mm ou comprise entre 30mm et 70mm. Cet agencement permet de réduire la taille du dispositif (10) sans que cela ne se répercute sensiblement au niveau du pouvoir de séparation.

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