US 2007/0003654 A1 · Mixing and pulverizing device, melting method for mixing, and method of molding cellulose material impregnated with binder

Abstract

A crushing and mixing device and a mixing and melting method attained by the crushing and mixing device having a mixing vessel 3 in which a plurality of blades 10a to 10f are installed on a rotary shaft 5 which is rotated by a motor 8 as a driving source and freely rotatably supported, to mix and crush materials; wherein a spiral vane 12 is equipped to supply the materials which are introduced to a rotary shaft 5 corresponding to an inlet for materials, to the mixing vessel 3; at least two blades of the plurality of blades 10a to 10f are installed on the rotary shaft at an inclined angle which reduces each other's opposing space in the rotating direction; an outlet 17 is disposed at a side of a wall of the mixing vessel to take out the materials when the mixed and crushed material reaches a predetermined state; the materials are mixed and crushed in the mixing vessel 3, and an entrained moisture therein is dewaterd by the heat generated by actions of shearing, friction and compression; and a molten binder is impregnated in the dehydrated materials. This device and method provide methods for utilizing or reusing materials which are problematic for conventional methods in terms of cost and productivity, the materials such as chipped woody waste materials or woody waste materials like pruned branches and leaves of trees, and plant materials and plant-waste materials like stems and leaves of wheat, and are suitable for applications to enhance utilization of wasted materials by improving the filling ratio thereof and to promote reuse of the wasted materials.

Claims16

Dependent claims

A crushing and mixing device having a mixing vessel in which a plurality of blades are installed on a rotary shaft which is being rotated by a driving source and freely rotatably supported, to mix and crush materials;

wherein
a spiral vane is equipped to supply said materials which are being introduced to a rotary shaft corresponding to an inlet for materials, to said mixing vessel;
said plurality of blades are constituted by at least two blades which are installed on said rotary shaft in an arrangement opposing each other in the axial direction of said rotary shaft on a site spaced at a predetermined angle in said circumferential direction thereof as well as being inclined at an angle which reduces each other's opposing space in the rotating direction thereof;
said inclined angle of said blades to said rotary shaft is unchanged between a base of said blade affixed on said rotary shaft and a tip thereof in its radial direction;
an outlet is disposed at a side of a wall of said mixing vessel to take out said materials mixed and crushed in said mixing vessel;
and
said materials are mixed and crushed in said mixing vessel, and an entrained moisture therein is dewatered by the heat generated by actions of shearing, friction and compression.

4 more elements

Dependencies are inferred from the claim text.

Mixing and pulverizing device, melting method for mixing, and method of molding cellulose material impregnated with binder

Life of this patent

Mixing and pulverizing device, melting method for mixing, and method of molding cellulose material impregnated with binder

Life of this patent

Abstract

Claims16