KR20140062344A - Oil-water separation devices using float - Google Patents

Abstract

The present invention relates to an oil-water separation device using a float, and more specifically, to an oil-water separation device using a float which absorbs floating oil and partial cutting oil from a cutting oil tank into an oil-water separation chamber using the float, separates the oil from water using the difference of specific gravity, removes the oil using an oil skimmer, and improves a separation effect of waste oil by passing through the waste oil from the oil skimmer through an additional separation pocket for improving a serration ability of the waste oil. The present invention comprises: the float (32) supplying the oil and the cutting oil into an inflow pipe (35); an insertion chamber (11); a separation chamber (14) with an oil overflow (52) on one side; a re-supplying chamber (17) with a cutting oil overflow (18) for discharging the water after the oil-water separation; and the oil skimmer (20) collecting the floating oil and separating and discharging the oil.

Description

[0001] Oil-water separation devices using float [

More particularly, the present invention relates to a water separation apparatus using a float, and more particularly, to an oil separation apparatus using a float in which a float is used to inhale suspended oil and a part of cutting oil into a water separation chamber, To improve the separation efficiency of the waste oil, and to improve the separation effect of the waste oil by passing additional separation pockets through the oil skimmer in order to improve the separation performance of the waste oil.

In general, when machining a metal material, the metal workpiece is cut or shaved using a machine tool to have a predetermined shape. The frictional resistance between the metal workpiece and the tool is reduced to cool the heat to improve the machining accuracy. And coolant is used to quickly remove the fine chips remaining on the machined surface of the workpiece.

Such cutting oil is composed of 20 to 80% by weight of base oil, paraffin base oil, naphthene base oil or aromatics base oil whose main component is saturated hydrocarbon, 10 to 70% by weight of water and other additives such as fatty acid, surfactant and defoamer. Further, when the machine tool is used, it is diluted 10 to 80 times with water and used as an emulsion containing a small amount of oil in a large amount of water.

The diluted cutting oil is mainly mixed with a hydraulic oil (hereinafter referred to as "oil") used to prevent abrasion of the machine tool transferring part during metal working, is collected in a coolant tank located in the lower part of the machine, To the workpiece being processed again.

When these cutting oil and oil are mixed in the coolant tank for a long time, the oil (full oil) floats on the cutting oil (water-soluble) due to the specific gravity difference, so the cutting oil is blocked by the air (oxygen), resulting in spoilage and bad odor. .

In addition, at the time of reuse, a large amount of foreign matter causes degradation of the precision of the work, and when it is discharged without being reused, serious water quality and soil contamination are caused. That is, the waste oil is in an emulsion state in which micro-oil remains dispersed in a large amount of water, so that it is difficult to efficiently separate the waste oil.

In order to compensate for this, recently, the amount of oil discharged from the metal cutting oil is removed by reusing the oil by using a water separator which is divided into equally divided chambers.

In the conventional oil-water separator, the cutting oil containing oil is introduced into the one chamber and the cutting oil having a relatively large specific gravity is moved to the adjacent chamber through the lower connector.

However, in such a conventional oil water separator, there is almost no fluid movement change except for the lowering of the introduced cutting oil, so that the oil contained in part of the cutting oil can not be removed, and thus the purity of the cutting oil received by the oil water separator is low .

On the other hand, a water-oil separator is used to remove liquid oil such as humidified oil, motor oil, and machine operating oil in a water-soluble cutting coolant.

The conventional oil water separating apparatus comprises a lower roller installed in water containing oil, an upper roller provided on the main body of the oil water separator, a lower roller, and a flat belt rotating along the upper roller, The oil is separated from the water by circulating it in the oil separator.

Document 1. Utility model registration No. 0260767 (registered on January 3, 2002) Document 2. Patent Registration No. 0839828 (registered on June 13, 2008) Literature 3. Patent Publication No. 2011-0071892 (Published on June 29, 2011) Literature 3. Patent Registration No. 0937580 (Registered on January 11, 2010)

SUMMARY OF THE INVENTION The present invention has been made in order to solve such conventional drawbacks, and it is an object of the present invention to provide a water-oil separator comprising a plurality of chambers and supplying floating oil and cutting oil through a float, And the oil separated from the cutting oil is separated again through the oil skimmer to remove the oil.

Another object of the present invention is to provide a more perfect oil separating effect by supplying oil to the oil separator through the oil skimmer and cutting oil contained in the oil to the additional separating pocket so that oil separation is performed once more .

The present invention relates to a float for supplying a floating oil and cutting oil to an inflow pipe by a driving force of a pump installed in a coolant tank and connected by a hose;

An inflow chamber in which an inflow pipe is installed on the upper side and which is separated from the first blocking wall and connected to the lower first transfer passage and the separation chamber;

A separation chamber separated from the inlet chamber and the first blocking wall and separated from the re-supply chamber and the second blocking wall by the specific gravity so as to perform the water separation;

A re-supply chamber in which an oil transfer path is formed below the second blocking wall and forms a coolant overflow through which water separated and separated from water is discharged;

And an oil skimmer installed at one side of the separation chamber, the separation wheel connected to the small motor being partially immersed in the separation chamber to collect the floating oil, and the scraper contacting the one side of the separation wheel to separate and discharge the oil. .

The inlet chamber of the present invention is characterized in that the hose connecting the float is connected to the upper inlet pipe through the pump and the exhaust hole is formed in the second blocking wall;

The separation chamber is formed such that a first conveyance passage is formed at a half height below the first blocking wall and a coolant transfer passage is formed at the bottom of the second block wall so that the coolant is oil- To be supplied to the transfer passage;

In the oil skimmer, a small motor is installed in a motor cover connected to a separation chamber so that the separation wheel is driven at 3 to 10 rpm, and a scraper for removing oil is installed on a side surface of the separation wheel so as to be discharged to a discharge portion. ;

The separation chamber is further provided with an additional separation pocket formed inside of the oil overflow to form an additional connection passage downward and installed to be oil-water separated by a difference in specific gravity from the oil supplied from the scraper of the oil skimmer.

The separation chamber is further provided with a waste oil tank for connecting the fixing rings and collecting the oil discharged from the discharge unit.

The present invention provides a water-oil separating apparatus comprising a plurality of chambers and supplies oil and cutting oil floating in a coolant tank through a float to an inlet chamber, and supplies the oil and coolant to a separation chamber for oil-water separation with a specific gravity difference. To remove the spent oil through the scraper through rotation of the oil skimmer, thereby greatly improving the effect of removing the waste oil.

The present invention provides a more complete oil separation effect by removing oil and oil from the oil contained in the separation chamber through the oil skimmer and then supplying the oil to the additional separation pocket for once more oil separation.

In the present invention, oxygen is supplied to the cutting oil through the removal of the oil contained in the cutting oil, thereby eliminating the decay and odor of the cutting oil, thereby contributing to improvement of the workplace environment and safety and health of the worker. As the amount of industrial waste generated is reduced, Replacement and industrial wastes processing costs, and greatly improving quality and productivity and cutting efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.
Fig. 2 is a front sectional view of a main part showing an installation state of the present invention
Fig. 3 is a side sectional view of a main portion showing an installation state of the present invention
Fig. 4 is a plan view of the installation state of the oil skimmer of the present invention
5 is a cross-sectional view of an oil skimmer according to the present invention
6 is a sectional view of the waste oil tank of the present invention
7 is a plan view of an installation state showing another embodiment of the present invention
8 is an enlarged plan view of a major part of another embodiment of the present invention
9 is an enlarged cross-sectional view of a main part of another embodiment of the present invention

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a front sectional view of a main part showing an installation state of the present invention, Fig. 3 is a side sectional view of a main part showing an installation state of the present invention, Fig. 4 Fig. 5 is a sectional view of the oil skimmer according to the present invention. Fig.

The present invention relates to an oil water separator (not shown) for supplying oil and a part of cutting oil 31 floating through a float 32 from a coolant tank 30 installed in a part of machinery, 10); An oil skimmer 20 installed at a part of the separation chamber 14 of the oil water separator 10 to remove oil having undergone water separation through a specific gravity difference; And a waste oil tank 40 for discharging and storing the oil supplied from the oil skimmer 20.

The oil water separator 10 is connected to the float 32 through a hose 34 which is connected to the float 32 by oil for oil separation or cutting oil 31 in the coolant tank 30, And is connected to the inflow pipe 35 provided on the upper side.

The inlet chamber 11 is formed with an exhaust hole 11a at a position higher than the water level above the second blocking wall 17 and has a predetermined space defined by the first blocking wall 12, And a first conveying passage 13 is formed at a position of about half of the entire water level below the first blocking wall 12 so as to be connected to the separation chamber 14 so that oil and cutting oil are conveyed, Thereby forming an oil-water separation through the difference.

A second cutoff wall 15 is formed in the separation chamber 14 so as to be separated from the re-supply chamber 17 and a cutoff oil feed passage 16 is provided near the bottom of the second cutoff wall 15 .

The re-supply chamber 17 is provided with a coolant overflow 18 to supply the coolant separated from the coolant tank 30 for reuse.

The oil water separator 10 has a protruding portion 19 protruding downward from the slope so as to be adjustable in height by a height adjusting bolt 19a.

The separation chamber 14 is formed with a discharge portion 53 in an oil overflow 52 for discharging oil in one portion.

An oil skimmer 20 for discharging the oil separated from the separation chamber 14 is installed in the discharge portion 53.

The oil skimmer 20 has a motor cover 21 installed at one side of the separation chamber 14 and connected to a small motor 22 driven at a low speed within the motor cover 21, And a separating wheel 24 for picking up and transferring the oil to the outer surface of the separating wheel 24. The oil separated from the separation chamber 14 by the specific gravity difference oil And a scraper (23) for discharging the scraper to the upper side of the discharge part (53);

The scraper 23 is formed to be inclined with a rubber material or a plastic material so that the end portion protrudes from the separating wheel 24 and is installed to be able to remove oil by discharging oil to the lower side of the discharging portion 53.

The waste oil tank 40 is provided with knobs 42 on both sides thereof so as to collect oil separated and assembled in the separation chamber 14 and oil-water separated by a specific gravity difference.

Reference numeral 36 denotes a control box for controlling the driving of the pump 33 and the driving of the small-sized motor 22.

6 shows a sectional view of the waste oil tank of the present invention in a separated state. The waste oil tank 40, which forms the fixing ring 41 that can be engaged with and detachable from the separation chamber 14 of the oil water separator 10, The oil separated and separated through the discharge part 53 is stored, and when stored at a predetermined height, it is separated and processed.

FIG. 7 is an installation state plan view showing another embodiment of the present invention, FIG. 8 is an enlarged plan view of a main part according to another embodiment of the present invention, and FIG. 9 is an enlarged sectional view of a main part of another embodiment of the present invention .

The oil separation apparatus 10 forms an additional separation pocket 50 inside the oil overflow 52 at a portion of the separation chamber 14 to separate the oil separated from the separation chamber 14 into oil skimmers 20, So that water separation can be performed once more through the difference in specific gravity, and the additional connecting passage 51 is formed in the lower side.

It is preferable that the oil overflow 52 is installed so as to be equal to the water level of the separation chamber 14.

The oil water separating apparatus 10 according to the present invention having such a configuration is installed in one of the coolant storage tanks 30 installed in a machine using cutting oil such as various machine tools or installed in a place where coolant for oil water separation is stored .

Since the float 32 is provided in the coolant tank 30 and the supplied cutting oil and the oil are floated by the difference in specific gravity, the float 32 is in a state in which the floated oil and the supply of the cutting oil 31, The oil and the cutting oil 31 are supplied to the inlet chamber 11 because the oil is supplied to the inlet pipe 35 from the hose 34 connected to the float 32 through the outlet port 31.

The oil supplied to the inlet chamber 11 and the cutting oil 31 are not directly mixed with the separation chamber 14 by the first blocking wall 12 but are introduced into the separation chamber 14 through the first lower feed passage 13, Lt; / RTI >

The oil transferred to the separation chamber 14 and the cutting oil are different in specific gravity, so that the water-soluble cutting oil sinks to the lower side, the oil floats to float upward, and water separation is performed. The oil- To the re-supply chamber 17 through the coolant transfer passage 16 formed at the lower side of the coolant supply passage 17 so as to maintain a predetermined water level.

The coolant transferred to the re-supply chamber 17 is supplied to the coolant tank 30 in a clean state through the coolant overflow 18 to reduce the frictional resistance between the metal work and the tool to cool the heat and improve the machining accuracy. At the same time, corrosion of the metal surface is prevented, and the fine chips remaining on the machined surface of the workpiece are quickly removed, thereby greatly improving the cutting efficiency.

The separation wheel 14 is driven at a speed of about 3 to 10 rpm through the small motor 22 of the oil skimmer 20 when the oil rises upward by the water separation in the separation chamber 14, And is rotated.

The oil absorbed by the rotation of the separation wheel 24 is removed by contacting the scraper 23 to one side of the separation wheel 24 so that the oil adsorbed on the surface of the separation wheel 24 is separated from the scraper The oil supplied to the discharge portion 53 is supplied to the oil storage tank 40 so that oil can be separated by the water separation.

The oil storage tank 40 is held in the separation chamber 14 through the fixing ring 41. When the oil storage tank 40 reaches a certain level, the oil storage tank 40 is separated through the handle 42 and treated as waste.

As described above, the oil-water separator 10 continuously supplies the cutting oil and is separated from the separation chamber 14 due to the specific gravity difference. After that, the cutting oil is supplied from the coolant overflow 18 through the re-supply chamber 17, When the oil rising from the chamber 14 is supplied through the oil skimmer 20 by adsorption rotation, the scraper 23 is continuously removed to continuously perform the oil separation operation.

However, when the oil is continuously removed through the oil skimmer 20 and then discharged to the discharge portion 53, the oil contains a small amount of cutting oil that has not been subjected to oil separation, 53 is provided with an additional separation pocket 50 so that the oil discharged from the scraper 23 through the oil skimmer 20 is supplied to the additional separation pocket 50.

The oil supplied to the additional separating pocket 50 is once again floated through the difference in specific gravity and the cutting oil sinks and is supplied to the separating chamber 14 through the additional connecting passage 51, The oil is discharged through the overflow 52 to the discharge part 53 and transferred to the oil storage tank 40, thereby separating the oil through the oil separation.

The oil water separating apparatus 10 of the present invention can be used in connection with the coolant tank 30 and collects cutting oil such as various machine tools for purifying, separates oil through water separation, will be.

While the present invention has been described with reference to exemplary embodiments, it will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims. .

The present invention is a very useful invention that provides a complete waste oil separation effect through oil and oil generated in various machine tools using cutting oil and oil removal through oil separation using a float, oil skimmer and oil storage tank will be.

10: Oil water separator 11: Inflow chamber
11a: exhaust hole 12: first blocking wall
13: first conveyance passage 14: separation chamber
15: second blocking wall 16: oil passage
17: Re-feed chamber 18: Coolant overflow
19: projecting portion 19a: height adjusting bolt
20: Oil skimmer 21: Motor cover
22: Small motor 23: Scraper
24: Separation wheel 30: Coolant tank
31: Coolant 32: Float
33: Pump 34: Hose
35: inlet pipe 40: waste oil tank
41: Fixing ring 42: Handle
50: additional separation pocket 51: additional connection passage
52: Oil overflow 53:

Claims (6)

A float 32 installed in the coolant tank 30 to supply the oil and the coolant, which are floating by the driving force of the pump 33 connected to the hose 34, to the inflow pipe 35;
An inlet chamber 11 provided with an inlet pipe 35 on the upper side and separated by the first blocking wall 12 and connected to the lower first transfer passage 13 and the separation chamber 14;
Is separated into the inlet chamber (11) and the first blocking wall (12), separated into the re-supply chamber (17) and the second blocking wall (15) 52);
A re-supply chamber 17 forming an oil transfer passage 16 below the second blocking wall 15 and forming a coolant overflow 18 through which water separated and separated out is discharged;
A separating wheel 24 connected to the small motor 22 is installed on one side of the separating chamber 14 and is partly immersed in the separating chamber 14 to collect floating oil, And an oil skimmer (20) for contacting and separating the oil from the oil skimmer (23).
The method according to claim 1,
The hose 34 connecting the float 32 to the inlet chamber 11 is connected to the upper inlet pipe 35 through the pump 33 and the exhaust hole 11a is formed in the second blocking wall 17 And the water is separated from the water.
The method according to claim 1,
The separation chamber 14 is formed such that the first transfer passage 13 is formed at a half height below the first blocking wall 12 and the coolant transfer passage 16 is formed at the bottom of the second blocking wall 15 And the cutting oil (31) is oil-water separated by a specific gravity difference so that the cutting oil is supplied to the cutting oil transfer passage (16).
The method according to claim 1,
The oil skimmer 20 is provided with a small motor 22 inside the motor cover 21 connected to the separation chamber 14 so that the separation wheel 24 is driven at 3 to 10 rpm and the separation wheel 24 Is installed to be inclined and to be discharged to the discharge part (53).
The method according to claim 1,
The separation chamber 14 is further provided with an additional separation pocket 50 in which an additional connecting passage 51 is formed downwardly inwardly of the oil overflow 52 and discharged from the scraper 23 of the oil skimmer 20 Wherein the oil is supplied so that oil is separated from the cutting oil by a specific gravity difference.
The method according to claim 1,
Wherein the separation chamber (14) further comprises a waste oil tank (40) for connecting the fixing ring (41) and storing the oil supplied from the discharge unit (53).

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