KR101711518B1

KR101711518B1 - Oil-skimmer

Info

Publication number: KR101711518B1
Application number: KR1020150059429A
Authority: KR
Inventors: 성지훈
Original assignee: 성지훈
Priority date: 2015-04-28
Filing date: 2015-04-28
Publication date: 2017-03-22
Also published as: KR20160127929A

Abstract

The present invention discloses an oil skimmer. The disclosed oil skimmer includes a main body that is detachably attached to a mixed fluid storage tank and separates and discharges mixed fluids introduced into the main body, and a fluid conveyance unit installed in the main body to absorb the mixed fluid of the mixed fluid storage tank, And a mixed fluid separator provided in the main body to guide the fluid transferring part and separating the mixed fluid transferred by the fluid transferring part from the fluid transferring part.

Description

Oil skimmer {OIL-SKIMMER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil skimmer, and more particularly, to an oil skimmer which improves a separation efficiency of a mixed fluid by using a difference in specific gravity and simplifies a separation structure of a mixed fluid.

Generally, the cutting oil discharged through the cutting process usually contains lubricating oil used for smooth operation of the machine tool, and oil such as anti-rust oil which is buried in the material to be cut. Cutting oil is not used for disposal but is used repeatedly through a cleaning process. When oil is mixed into the cutting oil, the cutting oil is easily corroded and the accuracy of the cutting process is significantly reduced.

In addition, when a high temperature environment is created during the cutting process, the oil separates from the cutting oil itself due to the breakage of the surfactant which is weak in heat. Such a floating oil is a mixture of lubricating oil, anti-rust oil, hydraulic oil, It is attached as residue, which causes breakage of tools and shortens life span. It causes bad odor by bacteria, causes skin disease when contacted with skin, may cause defective product processing, There is a problem that should be collected.

For this reason, an oil skimmer for separating oil from water-soluble cutting oil is generally installed in the oil collecting box of the cutting machine.

A majority of the oil skimmers installed in the oil collecting box of the cutting machine include a main body having a drive motor therein, a mount table provided with a drive roller and an idler roller, a belt connected between the drive roller and the idler roller, And a hopper in which the oil removed from the belt is collected.

However, the conventional oil skimmer disadvantageously deteriorates the separation effect of the mixed fluid simply because the oil skimmer separates only the foreign substances on the belt. Therefore, there is a need to improve this.

An oil skimmer is disclosed in Korean Utility Model Publication No. 20-1996-0017746 (published on June 19, 1996).

It is an object of the present invention to provide an oil skimmer which is created by the above-mentioned necessity and which can simplify the separation structure of the mixed fluid and improve the separation effect of the mixed fluid by using the difference in specific gravity.

To achieve the above object, according to the present invention, there is provided an oil skimmer comprising: a main body which is detachably attached to a mixed fluid storage tank and separates and discharges mixed fluids introduced into the fluid skimmer; A fluid transfer unit installed in the main body to absorb the mixed fluid of the mixed fluid storage tank and transfer the mixed fluid to the inside of the main body; And a mixed fluid separator provided in the main body to guide the fluid transferring part and separating the mixed fluid transferred by the fluid transferring part from the fluid transferring part.

The main body further includes a motor housing; And a fluid separation housing detachably attached to the motor housing to receive the mixed fluid separated by the mixed fluid separating section and separated from each other by a specific gravity difference of each fluid in which the mixed fluid is mixed, do.

Also, the fluid separation housing may include a waste oil reservoir having a fluid inlet through which the mixed fluid flows, and discharging waste oil having a low specific gravity out of the mixed fluid; And a coolant reservoir which is separated from the waste oil reservoir through a mixing prevention plate so that the lower end communicates with the waste oil reservoir, and a coolant having a high specific gravity flows into the mixed coolant and is discharged.

In addition, the fluid separation housing is characterized in that water is contained therein so that the lower end of the mixing prevention plate is locked.

The fluid separation housing may include a first housing including a waste oil reservoir and a coolant reservoir such that the mixed fluid flowing into the fluid separation housing is separated into a cutting oil and a waste oil by a difference in specific gravity; And a second housing coupled to a lower portion of the first housing to receive water in the first housing and to be detached from the mixed fluid storage tank.

The first housing is configured such that an upper surface of the coolant reservoir is closed to allow the mixed fluid to flow into the waste oil reservoir, and an opened lower surface is covered by the second housing.

The fluid separation housing may further include: a waste oil discharge pipe for discharging the waste oil from the waste oil storage; And a coolant discharge pipe for discharging the coolant from the coolant reservoir.

The fluid transfer unit may include a fluid absorbing member having one end positioned in the mixed fluid storage tank and the other end positioned in the interior of the main body; A conveying support member provided on the main body to support the fluid absorbing member; And a driving motor provided on the main body to be coupled to the feeding support member.

The conveyance support member may include: a main support member axially coupled to the drive motor; And an auxiliary supporting member rotatably coupled to the main body so as to support the fluid absorbing member in a pair with the main supporting member.

The mixed fluid separating unit may further include a scriper formed on the body to separate the mixed fluid absorbed by the fluid absorbing member while the fluid absorbing member of the fluid transmitting unit passes.

Further, the fluid absorbing member is characterized by having an embossing on its outer surface.

As described above, the oil skimmer according to the present invention can improve the separation effect of the mixed fluid by using the difference in specific gravity while simplifying the separation structure of the mixed fluid unlike the prior art.

1 is a use state diagram of an oil skimmer according to an embodiment of the present invention.
2 is an exploded perspective view showing an oil skimmer according to an embodiment of the present invention.
3 is a side cross-sectional view showing an oil skimmer according to an embodiment of the present invention.
4 is a sectional view taken along the line AA in Fig.
5 is a sectional view taken along line BB of Fig.
6 is a cross-sectional view illustrating a motor housing according to an embodiment of the present invention.
7 is a perspective view illustrating a fluid separation housing according to an embodiment of the present invention.
Fig. 8 is a plan view of Fig. 7. Fig.
9 is a bottom view showing a first housing according to an embodiment of the present invention.
10 is a sectional view taken along the line CC in Fig.
11 is a sectional view taken along line DD of Fig.
12 is a perspective view illustrating a fluid transfer unit according to an embodiment of the present invention.
13 is a plan view showing a state in which a fluid absorbing member and a conveying supporting member are installed in a first housing according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an automatic dilution coolant supply system according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Accordingly, the definitions of these terms should be based on the contents of this specification.

2 is an exploded perspective view illustrating an oil skimmer according to an embodiment of the present invention, and FIG. 3 is an exploded perspective view of an oil skimmer according to an embodiment of the present invention. 4 is a sectional view taken along the line AA in Fig. 3, and Fig. 5 is a sectional view taken along the line BB in Fig.

7 is a perspective view showing a fluid separation housing according to an embodiment of the present invention, FIG. 8 is a plan view of FIG. 7, and FIG. FIG. 9 is a bottom view showing a first housing according to an embodiment of the present invention, FIG. 10 is a sectional view taken along the line CC of FIG. 7, and FIG. 11 is a sectional view taken along line DD of FIG.

13 is a plan view showing a state in which a fluid absorbing member and a conveyance supporting member according to an embodiment of the present invention are installed in a first housing; FIG. 12 is a perspective view showing a fluid conveying unit according to an embodiment of the present invention; to be.

Referring to Figs. 1 to 5, the oil skimmer according to the present embodiment separates the mixed fluid generated by using the cutting machine into cutting oil and waste oil, respectively. The mixed fluid, which is generated by mixing oil with the water-soluble cutting oil used in the cutting process of the cutting machine, is stored in the mixed fluid storage tank 10, and the oil skimmer is mounted on the mixed fluid storage tank 10, It is separated into cutting oil and waste oil and discharged into each tank. At this time, the mixed fluid stored in the mixed fluid storage tank 10 causes the waste oil (oil) to float to the upper surface of the cutting oil, and the floating waste oil is transferred to the oil skimmer and separately discharged into the cutting oil and the waste oil.

For this, the oil skimmer according to the present embodiment includes a main body 100 that is detachably attached to a mixed fluid storage tank 10 and a main body 100 that is installed in the main body 100 to absorb a mixed fluid of the mixed fluid storage tank 10, 100, and a mixed fluid separator 300 for separating the mixed fluid from the fluid transfer unit 200.

The main body 100 receives the mixed fluid introduced by the fluid transferring part 200 and separates the mixed fluid introduced into the inside into the cutting oil and the waste oil by using the difference in specific gravity. The main body 100 includes a motor housing 110 and a fluid separation housing 120 coupled to a lower end of the motor housing 110 to separate and discharge the mixed fluid into cutting oil and waste oil.

The motor housing 110 includes a motor case 111 in which a drive motor 230 of the fluid transfer unit 200 is embedded and a grip case 113 that covers the motor case 111. At this time, the motor case 111 and the grip case 113 are detached from the motor housing 110. Specifically, a deaeration hole 111a is formed in an upper portion of the motor case 111, and a semicircular attachment / detachment protrusion 113a is inserted into the deaeration hole 111a. In addition, the motor housing 110 has a motor case 111 coupled to the fluid separation housing 120 by screws, and a drive switch 113b for turning on and off the drive motor 230 is provided in the grip case 113 do.

In addition, the motor housing 110 is further provided with a safety fuse 113c for cutting off power at the time of overload and a power connector 111b for connecting the power line.

Meanwhile, the oil skimmer according to the present embodiment discharges the waste oil separated and discharged from the mixed fluid separating unit 300 to the waste oil tank 20. At this time, the waste oil tank 20 is provided with a waste oil sensor 21 for detecting the waste oil to prevent the waste oil from overflowing. The waste oil detecting sensor 21 is connected to a switch connector 113d provided in the motor housing 110. [ The waste oil detection sensor 21 outputs a stop signal to the oil skimmer when the waste oil contained in the waste oil tank 20 reaches the set water level.

3, 4 and 6 to 11, the fluid separation housing 120 according to the present embodiment is detachably attached to the mixed fluid storage tank 10, 200 are accommodated. At this time, the mixed fluid flowing into the fluid separation housing 120 is separated into the cutting oil and the waste oil due to the specific gravity difference of each fluid.

The fluid separation housing 120 includes a first housing 130 for separating the mixed fluid flowing into the interior of the fluid separation housing 120 into a cutting oil and a waste oil using a difference in specific gravity and a second housing 130 joined to the first housing 130, And a second housing (140) detachably attached to the fluid storage tank (10). The fluid separation housing 120 receives water therein so that the cutting oil and the waste oil can be separated by a specific gravity difference.

The first housing 130 includes a waste oil storage 131 for discharging waste oil having a low specific gravity out of the mixed fluid and a coolant storage 133 for discharging the coolant having a high specific gravity out of the mixed fluid. In addition, the first housing 130 is formed with a fluid inlet 130a such that the mixed fluid flows into the waste oil reservoir 131. [ The fluid inlet 130a is formed as the upper surface of the waste oil reservoir 131 is opened.

The first housing 130 is divided into a waste oil storage 131 and a cutting oil storage 133 by a mixing prevention plate 135. The open bottom of the waste oil storage 131 and the oil storage 133 is divided into a first And is covered by the housing 140. In the first housing 130, waste oil having a low specific gravity flows into the mixed fluid flowing into the waste oil storage tank 131, and the cutting oil having a high specific gravity is located below the waste oil as it is mixed with water. This prevents the waste oil from being transferred to the coolant storage 133 through the lower portion of the mixing prevention plate 135.

The waste oil reservoir 131 has a waste oil discharge pipe 131a for discharging the waste oil floating over the water surface of the cutting oil to the outside of the first housing 130 due to the specific gravity difference with the cutting oil. The waste oil discharge pipe 131a is formed on the upper portion of the coolant oil reservoir 133 so as to communicate with the waste oil reservoir 131. In addition, the waste oil inlet pipe 131a is formed with a waste oil inlet 131b to allow the waste oil to flow as the level of the waste oil increases.

The upper surface of the cutting oil storage 133 is closed to allow the cutting oil to flow only through the lower side of the mixing prevention plate 135, and a waste oil discharge pipe 131a is formed on the upper surface. The coolant reservoir 133 is provided with a coolant discharge pipe 133a for discharging the coolant flowing through the lower portion of the mixing prevention plate 135 to the outside of the first housing 130. The coolant discharge pipe 133a is located on the same center line as the waste oil discharge pipe 131a and has a coolant oil inlet 133b communicating with the coolant storage 133. [ The coolant inlet 133b is formed below the seal plate of the coolant storage 133.

In particular, the waste oil inlet 131b and the coolant inlet 133b are formed to have a height difference. Specifically, the height of the waste oil inflow port 131b is formed at a position higher than the height of the coolant inflow port 133b. For this purpose, the waste oil inlet 131b is formed with a step 131b 'for the height difference from the cutting oil inlet 133b.

That is, since the level of the cutting oil accommodated in the waste oil storage 131 and the coolant storage 133 is the same, the height of the waste oil inlet 131b must be formed at a position higher than the coolant inlet 133b, Only the floating waste oil flows into the waste oil inlet 131b. So that the cutting oil of the waste oil storage tank 131 can be prevented from flowing into the waste oil inlet 131b.

In addition, the waste oil discharge pipe 131a and the oil discharge pipe 133a are formed such that their diameter increases toward the outside of the waste oil inlet 131b and the oil inlet 133b. That is, the inner diameter of the waste oil discharge pipe 131a and the oil discharge pipe 133a is formed to be inclined downward from the center to the outer side. The waste oil and the cutting oil flowing into the waste oil inlet 131b and the oil inlet 133b are smoothly discharged along the waste oil discharge pipe 131a and the oil discharge pipe 133a.

The first housing 130 is provided with a guide portion 137 on which a fluid transfer portion 200 is installed on a closed upper surface of the cutting oil storage 133. The guide part 137 protrudes from the upper surface of the cutting oil storage 133 in a semicircular shape and stably guides the fluid absorbing member 210 of the fluid transferring part 200 conveyed to the first housing 130.

The first housing 130 is provided at one side of the guide part 137 with a support boss 139 to which the conveying support member 220 of the mixed fluid separating part 300 is mounted.

The second housing 140 is coupled to the first housing 130 to seal the lower portion of the first housing 130 and includes a desorption member 141 to be detached from the mixed fluid storage tank 10. The mounting surface 143 is formed on the side surface of the second housing 140 so that the second housing 140 can be easily and stably fixed to the mixed fluid storage tank 10 by the desorption member 141.

The detachable member 141 according to the present embodiment may be formed by a magnet and is coupled to the mounting surface 143 and the lower surface of the second housing 140, respectively. The position of the second housing 140 detached from the mixed fluid storage tank 10 can be easily adjusted.

2 to 5, 7 and 12 to 13, the fluid transferring part 200 according to the present embodiment is installed in the main body 100 to absorb the mixed fluid of the mixed fluid storage tank 10, And transported to the inside of the storage tank 131.

The fluid transferring unit 200 includes a fluid absorbing member 210 for absorbing the mixed fluid, a conveying supporting member 220 for conveying the fluid absorbing member 210, a driving motor for rotating the conveying supporting member 220, (230).

The fluid absorbing member 210 has a ring shape and is endlessly orbitalized by the feed supporting member 220 to pass through the mixed fluid storage tank 10 and the first housing 130. In addition, the fluid absorbing member 210 separates the mixed fluid absorbed by the mixed fluid separating portion 300 during endless orbital movement. In particular, the fluid absorbing member 210 is provided with an embossing 211 on its outer surface to absorb more of the mixed fluid. The embossing 211 is protruded along the longitudinal direction of the fluid absorbing member 120. In addition, the fluid absorbing member 210 is formed in a hollow shape so as to be smoothly compressed by the mixed fluid separating unit 300.

The conveying support member 220 is provided in the first housing 130 to support the fluid absorbing member 210 and compresses and transports the fluid absorbing member 210. The feed support member 220 includes a main support member 221 that is axially coupled to the drive motor 230 and an auxiliary support member 220 that is rotatably coupled to the first housing 130 to support the fluid absorbing member 210. [ (223).

The main support member 221 is coupled to the motor shaft of the drive motor 230 so as to be located inside the guide portion 137 of the first housing 130 and is paired with the auxiliary support member 223, . At this time, the main support member 221 has a first support bend 221a into which the fluid absorbing member 210 is inserted, and the fluid absorbing member 210 is contacted to the first support bend 221a. The main support member 221 has a first gear tooth 221b formed on its outer surface so that the auxiliary support member 223 can be rotated accurately.

The auxiliary support member 223 is rotatably coupled to the support boss 139 of the first housing 130 and presses and feeds the fluid absorbing member 210 in pairs with the main support member 221. The auxiliary support member 223 has a second support bend portion 223a for guiding the fluid absorbing member 210 and a second gear tooth 223b for mating with the first gear tooth 221b. The auxiliary support member 223 is stably rotated while being prevented from slipping with the main support member 221 by the second gear teeth 223b.

The drive motor 230 is fixed to the inside of the motor case 111 and is engaged with the main support member 221 of the feed support member 220.

The mixed fluid separating unit 300 is provided in the first housing 130 to separate the mixed fluid, which is absorbed and conveyed by the fluid absorbing member 210, from the fluid absorbing member 210. The mixed fluid separating unit 300 includes a scriper 310 for separating the mixed fluid of the fluid absorbing member 210 as the fluid absorbing member 210 is passed therethrough and a scraper 310 for separating the fluid absorbing member 210 from the first housing 130).

The scriper 310 protrudes into the interior of the first housing 130 and its diameter is gradually reduced. That is, the scriper 310 is formed such that the diameter of the outlet through which the fluid absorbing member 210 penetrates is smaller than the diameter of the inlet through which the fluid absorbing member 210 is introduced. This is to allow the fluid absorbing member 210 to flow smoothly and effectively to separate the mixed fluid. At this time, the outlet diameter of the scriper 310 is formed to be smaller than or equal to the diameter of the fluid absorbing member 210.

The guide pipe 320 protrudes into the first housing 130 so as to be spaced apart from the scriper 310 and has a diameter larger than the diameter of the fluid absorbing member 210.

The operation of the oil skimmer according to one embodiment of the present invention will be described.

First, the main body 100 is attached to the mixed fluid storage tank 10 through the magnetic force of the desorption member 141, and is introduced into the fluid separation housing 120 through the waste oil storage tank 131 of the first housing 130 Fill the water. At this time, the fluid separation housing 120 is filled with water so that the lower end of the mixing prevention plate 135 is locked. This is to prevent the waste oil flowing into the waste oil reservoir 131 and floating on the water surface of the cutting oil from flowing into the coolant storage 133.

When the fluid absorbing member 210 is put into the mixed fluid storage tank 10 so as to be immersed in the mixed fluid of the mixed fluid storage tank 10 and the fluid transferring part 200 is operated, After the fluid absorbing member 210 passes through the interior of the first housing 130, the fluid absorbing member 210 is subjected to endless orbital movement that flows back into the mixed fluid storage tank 10.

The fluid absorbing member 210 absorbing the mixed fluid of the mixed fluid storage tank 10 is transferred to the first housing 130 to separate the mixed fluid absorbed by the scriber 310, The second housing 140 is introduced into the waste oil storage tank 131.

The mixed oil introduced into the waste oil reservoir 131 is mixed with the water filled in the fluid separation housing 120, and the waste oil having a small specific gravity of the mixed fluid floats on the surface of the cutting oil. At this time, the inside of the fluid separation housing 120 is filled with water, so that the waste oil having a low specific gravity is prevented from flowing into the coolant storage 133, so that the waste oil is filled only in the waste oil storage 131.

The fluid level of the first housing 130 gradually increases and the level of the waste oil becomes higher than the waste oil inlet 131b of the waste oil discharge pipe 131a due to the continuous introduction of the mixed fluid into the waste oil storage tank 131 by the continuous operation of the fluid transfer unit 200, The waste oil is discharged to the waste oil discharge pipe 131a through the waste oil inlet 131b. At this time, the coolant is discharged to the coolant discharge pipe 133a through the coolant inlet 133b of the coolant discharge pipe 133a.

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

Accordingly, the true scope of protection of the present invention should be defined by the claims.

100: main body 110: motor housing
120: fluid separation housing 130: first housing
140: second housing 200: fluid transfer part
210: fluid absorbing member 220: conveying supporting member
230: drive motor 300: mixed fluid separator
310: scriper 320: guide tube

Claims

A body detachably attached to the mixed fluid storage tank for separating and discharging the mixed fluid flowing into the mixed fluid storage tank; A fluid transferring unit installed in the main body to transfer the mixed fluid to the inside of the main body; And a mixed fluid separating portion provided in the main body to guide the fluid transferring portion and separating the mixed fluid transferred by the fluid transferring portion from the fluid transferring portion,
The main body includes: a motor housing; And a fluid separation housing detachably attached to the motor housing to receive the mixed fluid separated by the mixed fluid separating section and separating the mixed fluid into respective fluids using a difference in specific gravity,
Wherein the fluid separation housing comprises:
A first housing including a waste oil reservoir and a coolant oil reservoir for separating the mixed fluid flowing into the inside into a cutting oil and a waste oil due to a difference in specific gravity; And
A second housing coupled to a lower portion of the first housing to receive water in the first housing and to be detached from the mixed fluid storage tank;
And an oil skimmer.

delete

The fluid separation device according to claim 1,
A waste oil reservoir having a fluid inlet through which the mixed fluid flows, and discharging waste oil having a low specific gravity out of the mixed fluid; And
A coolant reservoir which is separated from the waste oil reservoir through a mixing prevention plate so that a lower end thereof communicates with the waste oil reservoir, and a coolant having a high specific gravity flows into the coolant reservoir;
And an oil skimmer.

The method of claim 3,
Wherein the fluid separation housing receives water therein such that a lower end of the mixing prevention plate is locked.

delete

The method according to claim 1,
Wherein the first housing is closed on the upper surface of the coolant storage tank so that the mixed fluid flows into the waste oil reservoir, and the opened lower surface is covered by the second housing.

The method according to claim 3 or 4,
Wherein the fluid separation housing comprises: a waste oil discharge pipe for discharging the waste oil from the waste oil storage; And
A coolant discharge pipe for discharging the coolant from the coolant storage tank;
And an oil skimmer.

[2] The apparatus of claim 1,
A fluid absorbing member whose one end is located in the mixed fluid storage tank and the other end is located inside the body;
A conveying support member provided on the main body to support the fluid absorbing member; And
A drive motor provided to the main body to be coupled to the feed support member;
And an oil skimmer.

9. The image forming apparatus according to claim 8,
A main support member axially coupled to the drive motor; And
An auxiliary support member pivotably coupled to the main body to support the fluid absorbing member in a pair with the main support member;
And an oil skimmer.

The method according to claim 1,
Wherein the mixed fluid separating unit further comprises a scriper formed on the body so that a mixed fluid absorbed by the fluid absorbing member is separated while the fluid absorbing member of the fluid transmitting unit passes.

9. The method of claim 8,
Wherein said fluid absorbing member comprises an outer surface with an embossing.