Mixer Incorporating imbalance

• US 20020054538A1
• Filed: 11/02/2001
• Published: 05/09/2002
• Est. Priority Date: 11/03/2000
• Status: Active Grant

• Current Assignee: PARI
• Original Assignee: PARI
• Inventors: Ligouzat, Jean-Philippe
• Granted Patent: US 6,464,388 B2
• Time in Patent Office: Days
• US Class Current: 366/319
• CPC Class Codes: B01F 27/60 with stirrers rotating about a horizontal or inclined axis
• CPC Class Codes: B01F 27/72 with helices or sections of helices
• CPC Class Codes: B01F 33/25 Mixers with loose mixing elements, e.g. loose balls in a receptacle
• CPC Class Codes: B01F 35/145 Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means

Abstract

This invention relates to a device for continuously mixing liquid products and/or pulverized products. The device comprises at least one outer tubular casing, means for supplying products to be mixed disposed at a first end of the tubular casing, the second end of the tubular casing being open for the discharge of the mixture, a mixer member having the form of a helix of inner diameter D disposed inside the tubular casing, and means for rotating the mixer member about the axis of said tubular casing. It further comprises an elongated piece closed at its two ends, of diameter d, with d<D, and of length l less than the length L of the mixer member, said piece being mounted free inside the mixer member, and means for axially holding said cylindrical piece inside the mixer member.

Claims

1. Device for continuously mixing liquid products and/or pulverized products, comprising:

at least one outer tubular casing presenting a first end and a second end,

means for supplying products to be mixed disposed at a first end of the tubular casing, the second end of the tubular casing being open for the discharge of the mixture,

a mixer member having the form of a helix having an inner diameter D and an axial length L disposed inside the tubular casing,

means for rotating the mixer member about the axis of said tubular casing,

an elongated piece closed at its two ends, of diameter d, with d<

D, and of length l less than said length L of the mixer member, said piece being mounted radially free inside the mixer member and being radially free with respect to said outer tubular casing to form an unbalance, and

means for axially holding said cylindrical piece inside the mixer member.

2. The device of claim 1, wherein said holding means comprise a perforated plate disposed at the second, open end of said tubular casing.

3. The device of claim 1, wherein said ends of the elongated piece are shaped.

4. The device of claim 3, wherein said ends of the elongated piece present the shape of cones or of ogives.

5. The device of claim 1, wherein said diameter d of the elongated piece is included between 90 and 50% of the diameter D of the helix.

6. The device of claim 1, wherein said elongated piece presents a substantially circular cross-section.

7. The device of claim 1, wherein said elongated piece presents a polygonal cross-section.

8. The device of claim 3, wherein the diameter d of the elongated piece is included between 90% and 50% of the diameter D of the helix.

9. The device of claim 8, wherein said elongated piece presents a polygonal cross-section.