PL106723B1 - MAGNETIC ELECTRIC DRUM SEPARATOR FOR THE USED MOLDING MASS - Google Patents

Description

The subject of the invention is an electromagnetic drum separator, in particular for used sand, which is used as a driving drum for a sand conveyor.

This separator, by attracting ferromagnetic elements from the stream of mass dropped from the conveyor to the chute, segregates the pure mass from the ferromagnetic parts that fall off the conveyor belt at a distance where the pull forces of the separator are no longer able to attract these elements.

Known electromagnetic drum separators / PRL patent no. 52 284 / have both outer and middle poles made in the form of flat discs, which creates a magnetic field that produces the greatest attraction force above the poles and has almost zero value in the symmetry planes of each of the coils perpendicularly to the separator rotation axis.

Such a distribution of forces is disadvantageous due to the fact that on the belt conveyor with which the separator cooperates, a dead field is created which is not covered by the force, which attracts the ferromagnetic elements contained in the mass transported by the belt conveyor.

The essence of the invention is the use of poles of a new shape separator.

In order to obtain a field of attracting forces with an elliptical distribution with the greatest force of attraction in a plane passing through the center of the separator and perpendicular to its axis of the thread / for separators cooperating with a conveyor with a side belt /, outer equimals consisting of discs provided with collars directed towards the inner dissipative pole. A certain distance "X" remains between the flanges and the opposite pole and the coils are fixed under the flanges.

The inner pole of the separator has a ring-shaped slit of a certain depth and width located on the circumference of the inner pole in its vertical axis of symmetry. To obtain a field of attractive forces with a linear distribution with a constant value of the pulling force in the plane passing through the axis of rotation of the separator / for separators cooperating with a flat belt conveyor / an internal pole was used consisting of a disk equipped with two collars directed towards the outer poles and separated by a slit.

A certain distance "X" remains between the flanges and the opposite poles and the coils are under the flanges.

The subject of the invention is shown in the drawing, in which Fig. 1 shows a rear view of the separator, Fig. 2 shows a section along the line A-A in Fig. 1, a separator cooperating with a conveyor with a side belt, Fig. 3, 723106 723 of lines A-A in Fig. 1 of a flat strip separator.

The separator with an elliptical distribution of the attracting force for cooperation with the side-belt conveyor consists of coils 1 made in the shape of rings, placed on the axis 2 provided on both outer sides of the separator with external poles 3.

The outer poles 3 are equal and consist of discs 4 provided with flanges 5 directed towards the inner polarity 6. A certain distance "X" remains between the flanges 5 and the inner pole 6 not dissimilar.

The internal pole 6 is made in the shape of a disc having symmetry in its plane perpendicular to the axis of rotation of the separator, cut slit 7 of a certain depth and width.

The separator is mounted in the bearings 8 in the housings 9. The separator with a linear distribution of the attraction force for cooperation with a flat belt conveyor consists of coils 1 made in the shape of rings placed on the axis 2 provided on both sides of the external separator into the outer poles 3 made in the shape of discs. The outer poles 3 are equal. The inner pole 6 consists of a disc 10 provided with two flanges 11 directed towards the outer pole 3. The discs 10 are separated from each other by a slot 7 of a certain depth and width. A certain distance "X" remains between the collars 10 and the outer poles 3 with different names. 5 Claims 1. Electromagnetic drum separator, especially for used molding sand, characterized by having equal outer poles (3) and consisting of discs ( 4) provided with flanges (5) directed towards the opposite pole (6), with the distance "X" remaining between the flanges (5) and the internal pole <6), and the distance under the flanges (5) the coils (1) are located. 2. Separator according to claim A method as claimed in claim 1, characterized in that the inner pole (6) of the separator has an annular gap (7) located on the circumference of the inner pole (6) in its vertical axis of symmetry. 3. Electromagnetic drum separator, in particular for used molding sand, characterized in that it has an inner pole (6) consisting of a disc (10) provided with two flanges (11) directed towards the outer poles (3) having different names and separated from each other a gap (7) between the flanges (11) and the outer poles (3). A distance "X," remains unlike, and there are 30 coils (1) under the flanges (11).

F, p106 723 5 16 7 6/5 Rg. 2 1 11 10 7 11 1

Claims (3)

Patent claims 1. An electromagnetic drum separator, in particular for used sand, characterized in that it has outer poles (3) of equal size and consisting of discs (4) provided with flanges (5) directed towards the opposite pole (6), whereby a distance "X" remains between the flanges (5) and the inner pole <6), and the coils (1) are located under the flanges (5). 2. Separator according to claim A method as claimed in claim 1, characterized in that the inner pole (6) of the separator has an annular gap (7) located on the circumference of the inner pole (6) in its vertical axis of symmetry. 3. Electromagnetic drum separator, in particular for used molding sand, characterized in that it has an inner pole (6) consisting of a disc (10) provided with two flanges (11) directed towards the outer poles (3) having different names and separated from each other a gap (7) between the flanges (11) and the outer poles (3). A distance "X," remains unlike, and there are 30 coils (1) under the flanges (11). F, p106 723 5 16 7 6/5 Rg. 2 1 11 10 7 11 1