JP2902196B2 - Gap separator for grinding type wet mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gap separator for a grinding type wet mill.

[0002]

2. Description of the Related Art A grinding wet mill is a wet mill in which beads, which are grinding media, are filled between a rotor and a stator, and the rotation of the beads generated by rotating the rotor is used as a shearing force. The gap separator of a conventional grinding-type wet mill has a structure as shown in FIGS. 4 and 5, where a narrow passage is formed between the rotor and the stator so that beads cannot pass therethrough. The beads were separated.

In FIGS. 4 and 5, 1 is a rotor, 2 is a gap separator, 3 is a stator, 4 is beads, and 5 is a suspension.

[0004]

The gap separator of the grinding type wet mill is usually assembled so that the gap is about 1/3 of the bead diameter so that the beads do not bite into the gap of the gap separator. If it is difficult to adjust the gap so that the diameter of the bead is small and the gap is about 1/3 of the diameter of the bead, the beads are caught in the gap of the gap separator, causing damage to the gap separator. Was.

The present invention has been made in view of the above-mentioned state of the art, and aims to provide a grinding type wet mill gap separator free from the above-mentioned disadvantages.

[0006]

SUMMARY OF THE INVENTION The present invention provides a stator, a cylindrical separator provided with the stator and an O-ring interposed therebetween, and having a gap formed on the lower surface, a spring for pressing the separator, and a sliding member which slides on the lower surface of the separator. This is a gap separator for a grinding-type wet mill comprising a rotary disk.

That is, the gap of the gap separator for the grinding type wet mill of the present invention is made not in the circumferential direction but in the axial direction so that a part of the gap is brought into contact with and slides. It is configured to have a gap through which it passes. Further, in order to bring the gap separator and the sliding surface into contact with each other with a constant pressure, a structure in which a portion where the gap separator is formed is pressed by a spring.

[0008]

[Advantage] A contact surface is provided in the gap adjusting portion of the gap separator, and the machined surface based on the contact surface becomes the gap size of the separator as it is, so it is affected by dimensional changes due to assembly errors and temperature changes during operation. Not even. Even if the gap size is small, the accurate gap size can be maintained, so that the trouble of the gap separator due to the biting of the beads is eliminated.

Also, even if beads that have become worn due to wear and become smaller are caught in the gap, the spring is pressed by the separator, so that the gap widens and the beads easily pass through the gap. The gap then returns to its original size and acts as a gap separator.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an overall sectional view of the embodiment.
FIG. 2 is a side view of the hatched portion A in FIG. 1, and FIG.
FIG.

The gap separator 2 in FIG. 1 is in contact with the rotor 1 and has a structure in which a gap is maintained between the rotor surface and the non-contact surface of the gap separator (see FIG. 2).
The gap separator 2 is connected to the stator 3 via an O-ring.
And is always pressed against the rotary disk 8 by the spring 6.

The suspension 5 sent into the grinding type wet mill is ground by the beads 4 flowing by the rotation of the rotor 1 and sent to the gap separator 2.

Since the gap of the gap separator 2 is set without machining errors in a machining state of micron level accuracy, even if beads having a small diameter of 0.1 mm level are used, the gap is not caught in the gap, and the suspension is not caught. Only pass through the gap separator.

In addition, even if the bead which has been worn down to the gap size level is caught in the gap, it pushes up the spring 6 holding down the gap separator, so that the gap is slightly widened and the worn bead 4 passes. , The gap separator can be prevented from being damaged. In this case, the worn beads that have passed through the gap separator 2 may be captured by a filter in a later step.

[0015]

According to the present invention, it is easy to use the gap separator even for small diameter beads having a diameter of 0.1 mm level.

[Brief description of the drawings]

FIG. 1 is an overall sectional view of an embodiment of the present invention.

FIG. 2 is a side view of a hatched portion A in FIG. 1;

FIG. 3 is a view taken in the direction of arrows AA in FIG. 2;

FIG. 4 is a cross-sectional view of one embodiment of a conventional gap separator for a grinding-type wet mill.

FIG. 5 is a cross-sectional view of another embodiment of a conventional gap separator for a grinding-type wet mill.

Claims (1)

(57) [Claims] 1. A stator comprising: a stator; a cylindrical separator provided with the stator and an O-ring interposed therebetween; a gap formed on a lower surface thereof; a spring pressing the separator; and a rotary disk sliding on the lower surface of the separator. Gap separator for grinding type wet mill.