Device for the manufacture of a fleece of inorganic and organic fibrous material
AssigneeVEB Zement Kombinat
InventorsAlfred Schickel, Klaus-Dieter Rochlitz, Thea Muller
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Abstract
The present invention is directed to an apparatus for manufacture of a fleece with irregularly erect fiber structure which comprises a chamber attached to a spinning chamber, the first chamber comprising at least one high voltage electrode and a grounded electrode forming a channel, the electrodes forming an electrostatic field for aligning fibers with the grounded electrode serving as an air-permeable base for forming the fleece.
Claims8
An apparatus for preparing a fiber agglomerate with an irregularly erect fiber structure comprising,
- (A) an air stream channel carrying fibers to be oriented,
- (B) a chamber disposed at the end of said air stream channel, said chamber comprising
- (1) at least one electrically-insulated, high voltage electrode,
- (2) an air-permeable grounded electrode situated underneath said high voltage electrode,
- (3) a channel within said chamber, in which one limiting plane of said channel is formed by said electrically-insulated high voltage electrode, an opposite limiting plane of said channel is formed by said air permeable grounded electrode, and said air stream is turned substantially perpendicularly in said channel,
- (4) means for generating an electrostatic field flowing across said channel from said high voltage electrode to said grounded electrode, said electrostatic field creating a moment of rotation orienting said fibers into an agglomerate of substantially erect fiber structure,
- (5) at least one other edge of said chamber constructed of electrically-nonconductive material, and
- (C) means for inspiring said air stream through said air-permeable, grounded electrode.
A method for preparation of a fiber agglomerate with irregularly erect fiber structure, comprising the steps of
- (A) introducing individual fibers into an air stream,
- (B) creating an electrostatic field from an electrically insulated, high voltage electrode above said air stream to an air-permeable, grounded electrode below said air stream,
- (C) forming a channel with one limiting plane of said channel being formed by said electrically-insulated, high voltage electrode, an opposite limiting plane of said channel being formed by said air-permeable, grounded electrode, and said air stream being turned substantially perpendicularly in said channel,
- (D) orienting said fibers into an agglomerate of substantially erect fiber structure by means of a moment of rotation generated by said electrostatic field and
- (E) drawing said fiber agglomerate onto said grounded electrode by suctioning said air stream through said air-permeable, grounded electrode.
Dependencies are inferred from the claim text.