JPH059053Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention separates the sludge from the coolant liquid containing cutting powder, which is discharged during the operation of machine tools, and reuses the coolant liquid. The present invention relates to a device for separating sludge in a coolant liquid.

[Conventional technology]

Conventionally, as a device belonging to the field of the present invention, a disk-shaped screen that allows liquid to pass through without passing solids is rotatably provided in a liquid passage port provided on the side of a receiving tank or a transfer tank for solids-containing liquid. A solid-liquid separator (1989-1993) is equipped with a liquid passage port that can be sealed and a sprayer attached near the outer surface of the disk-shaped screen to separate and clean solid matter that has adhered to the inner surface of the disk-shaped screen. (see Publication No. 79509).

[The problem that the idea attempts to solve]

The above-mentioned conventional solid-liquid separator has a disk-shaped screen rotatably mounted and a liquid passage port sealed so as to be able to rotate.
Since the spray is fixed, it takes time and effort to seal the outer periphery of the disc-shaped screen.

In other words, it is necessary to seal between the rotating disk-shaped screen and the stationary tank side, and if the seal is incomplete, complete solid-liquid separation will not be possible, and the seal will become clogged with sludge. This caused the malfunction.

The object of the present invention is to eliminate the above-mentioned drawbacks and to provide a device that completely separates the sludge and has trouble-free durability.

[Means to solve the problem]

In order to achieve the above object, the present invention has a structure in which the filter is fixed and the cleaning nozzle is rotated.

That is, a storage tank is provided one step lower through a separation tank and a filter provided upright on one side wall of the separation tank, and the storage tank side of the filter is configured to have approximately the radius length of the filter, and is rotated to sequentially remove the filter. A cleaning nozzle that sprays clean coolant over the entire surface is provided, the separation tank is provided with a coolant inlet and a screw that discharges the sludge out of the tank, and the storage tank is provided with a pump that supplies clean coolant to the cleaning nozzle. In order to further improve the separation effect, a separator plate is provided on the separation tank side of the filter that rotates in synchronization with the cleaning nozzle and has a size corresponding to the rotation area of the cleaning nozzle. The separation plate has an opening for passage of the coolant at the cleaning nozzle injection position, and in order to further enhance the separation and discharge effects, an opening is provided in the separation tank at the rotational diameter of the cleaning nozzle. The corresponding screw is configured such that its end side advances immediately after the coolant injected from the cleaning nozzle.

[Effect]

The coolant liquid containing sludge is supplied into the separation tank 1 from the inlet 2.

Then, only the coolant liquid passes through the filter 7 provided upright on one side wall and flows into the storage tank 6 provided one step lower, and the sludge adheres to the inside of the separation tank 1, particularly to the filter 7 portion.

A part of the clean coolant liquid from which the sludge has been removed, which has flowed into the storage tank 6, is supplied to the supply pipe 14 by the pump 15, and further to the rotary joint 1.
1. Cleaning liquid flow path 9 and cleaning nozzle 8 of rotating shaft 10
The sludge is supplied to the filter 7, and is injected from the injection port 8a onto the back surface of the filter 7, so that the sludge adhering to the surface of the filter 7 is peeled off.

The cleaning nozzle 8 is rotated, specifically by the motor 13, and the cleaning coolant liquid is sprayed over the entire back surface of the filter 7, so that the sludge removal work is performed on the entire surface of the filter 7.

In the present invention, the cleaning nozzle 8 is configured to have approximately the radius of the filter 7, and the cleaning nozzle 8 rotates to sequentially spray clean coolant onto the entire surface of the filter 7.

Therefore, the inconvenience that occurs when the clean coolant is simultaneously injected onto the entire surface of the filter 7 can be eliminated.

In other words, when injecting clean coolant over the entire surface of the filter 7 at the same time, it is necessary to prepare a large number of cleaning nozzles and a device for installing them. is from separation tank 1 to storage tank 6
Furthermore, a large amount of the cleaned coolant is used to remove the sludge from the filter 7, and at the same time, a large amount of the cleaned coolant is again used. It is possible to eliminate unnecessary phenomena such as returning to the separation tank 1 side.

The sludge remaining in the separation tank 1 is discharged from the discharge port 5 by the screws 3 and 23.
Furthermore, the clean coolant liquid from which the sludge in the storage tank 1 has been removed is supplied (circulated) to the machining section of the machine tool by a pump 16 and is reused.

As mentioned above, in the present invention, the filter 7 is mounted stationary and the cleaning nozzle is rotated.

〔Example〕

One embodiment will be described in detail below with reference to the drawings.

In Figures 1 and 2, 1 is a separation tank;
An inlet 2 for a coolant containing sludge is provided in the upper part of the coolant, and screws 3 and 23 for discharging the separated sludge to the outside of the separation tank 1 are provided inside. It is rotatable by deceleration motors 4 and 24 provided outside.

In the figure, 5 is a sludge discharge port.

Further, numeral 6 in the figure is a storage tank for the coolant liquid from which sludge has been removed, and is provided one step lower than the separation tank 1 via a filter 7 provided upright on one side wall of the separation tank 1.

The mesh or material of the filter 7 is selected depending on the purpose.

In the present invention, a cleaning nozzle 8 is provided on the storage tank 6 side of the filter 7 to rotate and spray coolant liquid onto substantially the entire surface of the filter 7.

That is, it is configured to have approximately the radius length of the filter 7,
A rotating shaft 10 having a cleaning liquid flow path 9 is connected to the central end of a cleaning nozzle 8 having a plurality of injection ports 8a provided in parallel with the filter 7, and the rotating shaft 10 is supported on the storage tank 6 side. Rotating joint 1 at the end
1, and further fix the gear 12 in the appropriate position.
It is configured to be rotated at a reduced speed by a separately provided motor 13.

A clean coolant liquid supply pipe 14 is connected to the rotation joint 11.

Furthermore, a supply pipe 14 for clean coolant liquid and a pump 15 provided in the storage tank 6 are connected.

In the figure, 16 is a pump for supplying clean coolant from which sludge has been separated to the working part of the machine tool, 17 is a filter provided on the suction side of the pumps 15 and 16, and 18 is a pump driving motor.

FIG. 3 shows a device having the above structure, and a separator 19.
It has been established.

That is, a separating plate 19 is provided on the separation tank 1 side of the filter 7, which rotates in synchronization with the cleaning nozzle 8 and has a size corresponding to the rotating area of the cleaning nozzle 8.

In the drawing embodiment, the filter 7 and the cleaning nozzle 8 are
As a synchronizing means, the rotating shaft 10 is extended into the separation tank 1, and a separator plate 19 is provided at the tip thereof.

Further, an opening 19a is provided at the spraying position of the cleaning nozzle 8 of the separator 19 for passage of the coolant.

That is, clean coolant liquid is injected from the cleaning nozzle 8 onto the back surface of the filter 7, the sludge on the surface of the filter 7 is peeled off, and the coolant liquid containing a large amount of the peeled sludge is transferred to the separator plate 19.
The separator plate 19 is provided to prevent the sludge from passing through the opening 19a of the sludge and moving to the filter 7 side again and being adsorbed to the filter 7, thereby increasing the sludge separation effect. be.

Note that the opening 19a may be a simple punched hole, but a tapered cut-and-raised piece may be provided on the filter 7 side to further provide a bench lily effect.

FIG. 5 shows an attempt to obtain substantially the same effect as the separator 19 by using a screw 3 for discharging sludge out of the tank, and the effect of separating and discharging sludge is enhanced.

That is, the screw 3 that discharges sludge into the separation tank 1 corresponding to the rotational diameter of the cleaning nozzle 8 to the outside of the tank is arranged so that its terminal side 3a advances immediately after the coolant liquid injected from the cleaning nozzle 8. It was established. Therefore, in the embodiment shown in the drawings, a screw 3 is provided in the separation tank 1 in a line with the rotating shaft 10, and the screw shaft 3b is connected to the rotating shaft 10.

At the time of connection, the end side 3a of the screw 3 is positioned so as to proceed immediately behind the coolant liquid injected from the cleaning nozzle 8.

With the above configuration, clean coolant liquid is sprayed from the cleaning nozzle 8 to the back surface of the filter 7,
The sludge on the surface of the filter 7 is peeled off, and the coolant liquid containing a large amount of the peeled sludge is smoothly drawn into the screw 3 and further discharged by the screw 23.

[Effect of idea]

According to the present invention, the filter provided between the separation tank and the storage tank is kept stationary, and the cleaning nozzle is moved.

As a result, it is not necessary to seal the movable parts as in the past, and complete sealing is possible, and the sealing parts are not damaged by sludge, so failures do not occur and durability is improved.

In addition, since the cleaning nozzle has a length approximately equal to the radius of the filter and is configured to be rotated, it is possible to eliminate the inconveniences that occur when simultaneously injecting clean coolant onto the entire surface of the filter, as described above.

Furthermore, according to the apparatus of claim 2, the separation effect can be further improved, and furthermore, according to the apparatus of claim 3, the discharge effect can be improved as well as the separation effect.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a vertical sectional view of the main part, FIG. 2 is a sectional view taken along the line A-A in FIG. 4 is a front view of the separator, FIG. 5 is a sectional view corresponding to FIG. 2 showing other equipment, and FIG. 6 is an explanation showing the relationship between the cleaning nozzle and the end of the screw shaft. It is a diagram. 1...Separation tank, 2...Inflow port, 3, 23...Screw, 3a...Terminal side, 5...Sludge discharge port, 6...Storage tank, 7...Filter, 8...Washing nozzle, 9 ...Washing liquid channel, 14...Crant liquid supply pipe, 19...Separator, 19a...Opening.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A storage tank is provided lower than the separation tank and a filter provided upright on one side wall of the tank, and the storage tank side of the filter has a diameter approximately equal to the radial length of the filter. The separation tank is provided with a cleaning nozzle that rotates and sequentially sprays clean coolant over substantially the entire surface of the filter, the separation tank is provided with an inlet for the coolant and a screw for discharging the sludge out of the tank, and the storage tank is equipped with the above-mentioned cleaning nozzle. A device for separating sludge in a coolant liquid, characterized in that a pump is provided for supplying a cleaning nozzle with a cleaning nozzle. (2) A separator plate is provided on the separation tank side of the filter that rotates in synchronization with the cleaning nozzle and has a size corresponding to the rotational area of the cleaning nozzle, and a separator plate is provided at the cleaning nozzle injection position of the separator plate to allow coolant to pass through. The apparatus for separating sludge in a coolant liquid according to claim 1, further comprising an opening for separating the sludge from the coolant. (3) The submerged coolant sludge according to claim 1, wherein a screw corresponding to the rotational diameter of the cleaning nozzle is provided in the separation tank so that its end side advances immediately after the coolant injected from the cleaning nozzle. separation device.