JPS60119Y2 - Magnetic separation device for liquid purification - Google Patents

Description

[Detailed Description of the Invention] This invention relates to the provision of a structure that facilitates inspection and cleaning of the inside of a purifying device using magnetic force for liquid contaminated with magnetic powder such as iron powder.

As a means of removing a large amount of magnetic powder mixed into a liquid, a part of the peripheral surface of a drum around which a magnetic field is formed is immersed in the liquid, and the magnetic powder attached to the peripheral surface is removed by the magnetic force by rotating the magnetic drum. a liquid tank having an inlet and an outlet, in which the magnetic powder is removed by a magnetic powder discharge mechanism having a scraper in sliding contact with the circumferential surface of the magnetic drum;
A magnetic drum that is mounted on a shaft in the liquid tank and driven by another drive unit, and a scraper that is in sliding contact with the magnetic drum, and extends outside the liquid tank and serves as an inclined surface guide for the removed magnetic powder toward the outside of the liquid tank. There is a magnetic separation device for liquid purification that is configured with a magnetic powder discharge mechanism.

However, in the conventionally known magnetic separation apparatus for liquid purification having this configuration, since the objects to be removed are limited to magnetic substances, it is impossible to remove non-magnetic foreign substances mixed into the liquid.

On the other hand, in order to effectively apply magnetic force to the polluted liquid, it is necessary to confine the flow path of the liquid in the liquid tank within the effective magnetic field of the magnetic drum, and for this purpose the flow path structure in the liquid tank is Have a complex structure.

Therefore, non-magnetic foreign matter is likely to precipitate and accumulate in this complicated flow path, which may narrow the flow path and reduce the throughput of the device.
Sometimes it becomes blocked and becomes unusable.

Particularly when used to purify the grinding oil of a grinding machine, a large amount of abrasive grains are discharged together with the grinding debris that is ground and discharged from the workpiece into the oil.

Most of it gets caught up in the grinding debris, adheres to the magnetic drum, and is discharged outside the liquid tank, but since the amount of contamination is large, the amount of debris accumulates rapidly.

Conventionally, this accumulation was left until it became unusable and the equipment was discarded or disassembled for cleaning, but this was not done satisfactorily due to the complexity of the structure, and in any case, the equipment's performance and lifespan were reduced. was made low.

The object of this invention is to provide a magnetic separation device for liquid purification that has a structure that allows this deposit to be easily removed.

Examples thereof will be described below with reference to the drawings.

In FIGS. 1 and 2, 1 is a liquid tank having an inlet 2 and an outlet 3 having an appropriate head.

4 is a magnetic drum with a magnetic field formed on its circumferential surface;
The shaft is horizontally supported by bearings 5 on the side wall of the shaft.

Reference numeral 6 denotes the bottom of the liquid tank 1 for restraining the liquid flow path 6' within the magnetic field formed by the magnetic drum 4, and is provided with a predetermined gap between it and the circumferential surface of the magnetic drum. ing.

Reference numeral 7 denotes an electric motor, and its output shaft 8 is connected to appropriate transmission system mechanical elements such as sprockets 9, 9' and a chino 10 so as to rotate the shaft 11 of the magnetic drum 4.

Reference numeral 11 denotes a magnetic powder discharging mechanism which is a main part of the present invention, and includes a guide 12 made of a plate-like member, a scraper 13 made of a non-magnetic elastic material attached to the upper end of the guide 12, and a back surface of the guide 12. A male screw 14 protrudes from the side in a direction parallel to the horizontal direction of the guide surface of the guide 12 shown in FIGS. 3 and 4,
14', and nuts 15, 15' that are screwed into the male thread 14.
and the male screw 14 provided on the symmetrical side wall of the liquid tank 1,
14' is composed of a reciprocating notch 16.

Then, the scraper 13 at the upper end is brought into contact with the upper half circumferential surface of the magnetic drum 4, and the other end is the axis of the magnetic drum 4 on the outflow side of the flow path, which is formed lower than the height of the other side wall of the liquid tank 1. Along the edge 17 of the side wall parallel to said external thread 14.14'
The nuts 15, 1 are bridged by the notches 16, 16', and an inclined surface extending from the circumferential surface of the magnetic drum to the outside of the liquid tank is formed.
It is tightened and fixed at 5'.

In the figure, the L-shaped member attached to the back side of the guide 12 between the male screws 14 and 14' is the reinforcing member 18 of the guide 12.
Used when the guide width is extremely large and strength in the width direction is desired.

Although the present invention is constructed as described above, if non-magnetic foreign matter is deposited on the bottom of the liquid tank 1, for example, on the flow path 6' or the bottom 18 near the outlet, loosening the nuts 15, 15' It becomes possible to easily remove the magnetic powder discharge mechanism 11 and take out the deposits in the liquid tank.

Further, the magnetic powder discharge mechanism 11 of the present invention has male screws 14, 14' that loosely engage with notches 16, 16' provided in the side wall.
Since the structure is such that the position of the scraper section relative to the magnetic drum 4 can be adjusted using nuts 15, 15', etc., it is easy to repair the deterioration in the ability to remove the attached magnetic powder due to wear of the scraper.

As is clear from the above description, by implementing the present invention, cleaning of deposits in the liquid tank becomes extremely easy.

Therefore, it is possible to constantly maintain the normal performance of the device, and its life can be extended.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a side view of the embodiment of the present invention. Figure 3 shows the main parts of the present invention, and is an enlarged view of the area indicated by arrows C and A' in Figure 2, and Figure 4 shows the main parts of the invention.
33-B' is a partial sectional view showing the cross section taken along the arrow C in FIG. 2; FIG. 1...Liquid tank, 2...Inflow port, 3...
...outlet, 4...magnetic drum, 11...
...Magnetic powder discharge mechanism, 12...Guidance, 13.
...Scraper, 14, 14'... Male thread, 15, 15'... Nut, 16...
・Cut.

Claims (2)

[Scope of utility model registration request] (1) A liquid tank 1 having an inlet and an outlet, a magnetic drum 4 mounted on a shaft in the liquid tank and driven by another drive system, and a scraper 13 in sliding contact with the magnetic drum outside the liquid tank. In a magnetic separation device having a magnetic powder discharging mechanism 11 that also serves as an inclined surface guide, the magnetic powder discharging mechanism 11 is
Male screws 14, 14' protruding in a direction parallel to the guide surface on the back side of the guide 12, nuts 15, 15' screwed into the male screws 14, 14', and the magnetic drum 4 of the liquid tank 1.
The male thread 1 provided at the edge of two symmetrical side walls perpendicular to the axis of
A magnetic separation device for liquid purification, characterized in that the notches 4 and 14' are configured as interlockable notches 16. (2) The magnetic separation device for liquid purification according to claim 1, which has a reinforcing member 18 attached to the back surface of the guide 12 that connects the male threads 14, 14'.