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US 8,403,149 B2Granted
Cyclone classifier, flash drying system using the cyclone classifier, and toner prepared by the flash drying system
AssigneeRicoh Company, Ltd.
InventorsTakahiro Kadota, Kenichi Uehara, Noboru Kuroda, Masato Kobayashi
Life of this patent
Estimating the term…
Abstract
A cyclone classifier for classifying a particulate material, including an outer cylinder having a waistless part and an inverted-cone part vertically connected to an underside of the waistless part, and an inner cylinder which includes an exhaust opening such that the inner cylinder has a position-adjustable bottom end.
Claims19
A cyclone classifier for classifying a particulate material, comprising:
- an outer cylinder, including,
- a waistless part including a non-enlarged portion having an inner diameter, an enlarged portion positioned below the non-enlarged portion and having an inner diameter that is larger than the inner diameter of the non-enlarged portion, and a contracted part positioned between the non-enlarged portion and the enlarged portion and formed of a cylinder having a contracted inner diameter or an orifice-formed baffle plate extending further inward than the inner diameter of the non-enlarged portion, and
- an inverted-cone part vertically connected to an underside of the waistless part;
- an inlet attached to the non-enlarged portion;
- and
- an inner cylinder including an exhaust opening, wherein the inner cylinder has a bottom end present under the contracted part in the waistless part.
3 more elements
The cyclone classifier for classifying a particulate material, comprising:
- an outer cylinder, including,
- a waistless part including a non-enlarged portion having an inner diameter, an enlarged portion positioned below the non-enlarged portion and having an inner diameter that is larger than the inner diameter of the non-enlarged portion, and a contracted part positioned between the non-enlarged portion and the enlarged portion and formed of a cylinder having a contracted inner diameter or an orifice-formed baffle plate extending further inward than the inner diameter of the non-enlarged portion, and
- an inverted-cone part vertically connected to an underside of the waistless part;
- an inlet attached to the non-enlarged portion;
- and
- an inner cylinder including an exhaust opening,
- wherein the inner cylinder has a bottom end and the bottom end of the inner cylinder is present within a height of the inverted-cone part.
4 more elements
A method of preparing a toner, comprising:
- inserting the toner through an inlet of a waistless part, the waistless part including a non-enlarged cylindrical portion having a constant inner diameter and the inlet is attached to the non-enlarged cylindrical portion, an enlarged cylindrical portion positioned below the non-enlarged portion and having a constant inner diameter that is larger than the inner diameter of the non-enlarged cylindrical portion, and a contracted part positioned between the non-enlarged cylindrical portion and the enlarged cylindrical portion and formed of a cylinder having a contracted inner diameter or an orifice-formed baffle plate extending further inward than the constant inner diameter of the non-enlarged cylindrical portion;
- passing the toner to a portion of the waistless part positioned below contracted part;
- discharging particles of the toner having a diameter below a predetermined size through an exhausted opening of an inner cylinder positioned within the waistless part, and the exhaust opening is positioned under the contracted part in the waistless part;
- and
- collecting particles of the toner having a diameter equal to or above a predetermined size in a collection container positioned below the waistless part.
2 more elements
A cyclone classifier for classifying a particulate material, comprising:
- an outer cylinder, including,
- a waistless part including a non-enlarged portion having an inner diameter, an enlarged portion positioned below the non-enlarged portion and having an inner diameter that is larger than the inner diameter of the non-enlarged potion, and a contracted part positioned between the non-enlarged portion and the enlarged portion and formed of a cylinder having a contracted inner diameter or an orifice-formed baffle plate extending further inward than the inner diameter of the non-enlarged portion, and
- an inverted-cone part vertically connected to an underside of the waistless part;
- an inlet attached to the non-enlarged portion;
- and
- means for exhausting the classified particulate material, wherein the means for exhausting includes a bottom end present under the contracted part in the waistless part.
3 more elements
Dependencies are inferred from the claim text.