KR101930630B1 - Oil dust collector - Google Patents

Abstract

The present invention relates to an oil mist dust collector, which forms a depressed perforated plate having a plurality of perforations formed in a suction portion, so that the air sucked by the perforated perforated plate is dispersed and sucked, By providing the filtration function for some air while inducing smooth suction by equal air distribution and air pressure offset to the filter by dispersion of air, it is possible to improve the filtration efficiency of the oil mist dust collector and to increase the load acting on the suction motor And to enhance the product competitiveness by significantly increasing the service life.
To this end, the present invention comprises a main body and a suction portion and a discharge portion formed at both ends of the main body, so that air containing oil mist sucked through the suction portion is filtered to discharge air of high purity through the discharge portion In the oil mist dust collector, the suction unit (20) includes a first lid (22) for sealing one end of the main body (10); A suction port 24 formed at one end of the first lid 22 and formed with a passage for sucking air into the main body 10; And a plurality of pores formed in the other end of the first lid 22 so as to be dispersed in the main body 10 while a part of the oil mist contained in the air is filtered by the collision, And a perforated plate (26).

Description

Oil mist collector {OIL DUST COLLECTOR}

The present invention relates to an oil mist dust collector, and more particularly, to an oil mist dust collector having a plurality of pores formed in a suction portion thereof so that air sucked by the pierced perforated plate is dispersed and sucked, The filtration efficiency of the oil mist dust collector is improved by providing a filtration function for some air while inducing smooth suction by air distribution and air pressure offset equal to the filter by dispersion of the air, To thereby increase the service life of the oil mist dust collector.

Generally, when machining a metal material by using a machine tool such as a lathe or a milling machine, cutting oil is supplied to a cutting portion by a cutting tool or the like. The cutting oil reduces frictional resistance, lowers the cutting point temperature, It extends the tool life and improves machining accuracy.

However, when cutting a metal material rotating at a high speed in a machine tool with a cutting tool, the cutting oil supplied to the cutting part is scattered in the form of fine particles such as mist due to the high rotational force of the metal material. Since the particulate oil mist that is scattered together includes dust, metal powder, and the like, it is very harmful to the human body, which causes injury to the operator.

Accordingly, the machine tool or the like is constituted by an oil mist dust collector (or dust collecting device) for suppressing the generation of oil mist when cutting a metal material.

The conventional oil mist dust collector includes an impeller driven by a motor for radially discharging the sucked air radially, and an air blower installed adjacent to the outer circumference of the impeller and discharged from the impeller, as disclosed in Japanese Patent No. 10-564297 A centrifugal force for separating the air primarily separated by the impact plate into a heavy air containing oil by the centrifugal force and a light air containing no oil, And a screen strainer for separating the oil from the heavy air separated by the centrifugal force application means.

However, when the dust collector sucks the air by rotating one impeller by using the power of the motor, the dust collector sucks up the oil mist sucked together with the sucked air using a plurality of filters to improve the dust collecting efficiency It is necessary to replace the filter periodically, which results in a relatively low maintenance cost.

To improve this, the conventional oil mist dust collector of Japanese Patent Laid-Open No. 10-2016-141320, as shown in Figs. 1 and 2, has an inflow space for allowing outside air to flow therein, A main body having a suction port and an exhaust port communicating with the inflow space, respectively, and a hollow portion formed inside the main body so as to be spaced apart from the inner side surface of the main body and having the inflow space therein and communicating with the inflow space, A filter for filtering the oil mist contained in the air introduced into the main body and the main body, and a filter for filtering the oil mist contained in the air introduced into the main body, And a cleaning unit installed on the main body and spraying a coolant into the main body to clean the filter unit.

Accordingly, since the impeller and the filter unit are periodically cleaned by the cutting oil sprayed from the cleaning unit, it is possible to save the cost and manpower required for maintenance and repair of the equipment.

However, in the above-described conventional oil mist dust collector, the oil mist sucked through the suction port 221 is primarily filtered by the auxiliary filter 223. In this case, the oil mist is composed of viscous oil and fine particles Shaped metal powder is adsorbed on the auxiliary filter 223 and the auxiliary filter 223 can not exhibit the filtering effect due to the oil and the fine particles for a certain period of time such as 5 to 6 months.

In addition, if the auxiliary filter 223 is not replaced, an overload will be applied to the motor 330 formed inside, thereby ultimately providing a cause of failure to the oil mist dust collector, and thereby replacing the expensive oil mist dust collector There is a problem.

That is, viscous oil and particulate metal powder are adsorbed to the auxiliary filter 223 performing the primary filtration function through the inlet 221, so that the maintenance cost to be periodically changed and the auxiliary filter 223, There is a problem in that the product competitiveness of the oil mist dust collector is deteriorated due to a problem that the oil mist dust collector is entirely replaced due to an overload acting on the drive motor 330. [

Korean Patent Publication No. 10-564297 (published on Mar. 29, 2006) Korean Utility Model Registration Bulletin 20-466809 (Announcement 2013.05.08) Korean Patent Publication No. 10-2016-141320 (published on December 20, 2016)

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide an air conditioner having a plurality of pores formed in a suction portion thereof so that air sucked by the pierced perforated plate is dispersed and sucked, Thereby improving the filtration efficiency of the oil mist precipitator by giving a uniform filtration function to the air and distributing the air to the filter uniformly and inducing smooth suction by air pressure offset. And the load acting on the suction motor is reduced to greatly increase the service life, thereby enhancing the competitiveness of the product.

According to an aspect of the present invention, there is provided an air purifier comprising: a main body; and a suction portion and a discharge portion formed at both ends of the main body, the air containing the oil mist sucked through the suction portion is filtered, And a second lid which seals one end of the main body part; A suction port formed at one end of the first lid to form a passage for sucking air into the main body; And a pierced perforated plate formed at the other end of the first lid and configured to have a plurality of perforations or a mesh net shape so that a part of the oil mist contained in the air is captured by the collision while supporting the air to be dispersed in the main body part .

In the present invention, the recessed perforated plate includes a recessed space for guiding the air that has entered through the inlet port to enter the main body while staying in a certain space, thereby facilitating smooth dispersion and collision of the air .

In the present invention, it is preferable that the oil mist dust collector includes a drain for guiding the filtration residue filtered through the depressed perforated plate to be easily discharged to the outside.

In the present invention, the drain includes a guide plate for guiding the transfer to the filtration residue collected through the depressed perforated plate; And a drain valve for discharging the filtration residue guided by the guide plate to the outside.

In the present invention, it is preferable that the drain is formed at the lower inner side of the case of the body portion.

According to the present invention, since the recessed perforated plate having a plurality of perforations formed therein is formed, the suctioned air is dispersed and sucked by the perforated perforated plate while a part of the oil mist contained in the air is filtered by the collision, By distributing the air to the filter, the air is distributed uniformly and the air pressure is canceled to induce smooth suction, and the filtration function for some air is given, thereby improving the filtration efficiency of the oil mist dust collector and reducing the load acting on the suction motor. It is effective to strengthen the competitiveness of the product.

1 is a schematic perspective view of a machine tool equipped with an oil mist dust collector according to a conventional example;
FIG. 2 is a partially cutaway perspective view of a conventional oil mist precipitator. FIG.
Figures 3a and 3b are a front view and a side view of an oil mist according to the present invention;
4 is an enlarged cross-sectional view of a suction portion according to the present invention.

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

The oil mist dust collector 1 of the present invention includes a main body 10 and a suction portion 20 and a discharge portion 30 as shown in Fig.

The main body 10 has a plurality of filters formed therein to filter the oil mist sucked through the suction unit 20 and to perform the filtering function to discharge the filtered air to the discharge unit 30. [

The main body 10 includes a case 12, a suction motor 14 disposed inside the case 12, and a suction unit 20 disposed inside the case 12 and extending from the suction unit 20 to the discharge unit 30 (17) and (18), which are sequentially arranged in the direction of the arrow.

The case 12 constitutes a contour mold and performs a function of supporting the constituent elements.

The suction motor 14 is disposed at an inner center of the case 12 and serves to provide a rotational force to act on the suction force.

In addition, the suction motor 14 includes an impeller 15 which is rotated by a rotational force to provide a suction force to suck air containing oil mist through the suction unit 20.

The first filter 16 is disposed in a front portion of the case 12, that is, a portion where the suction portion 20 is located, and performs a primary filtration of the air sucked through the suction portion 20. In this case, the first filter 16 has a filtration function of up to 25 mu m.

The second filter 17 is disposed behind the first filter 16 and performs secondary filtration of the air sucked by the suction force of the impeller 15. In this case, the second filter 17 has a filtration function of up to 10 mu m.

The third filter (18) is disposed adjacent to the discharge part (30) behind the second filter (17) to perform a function of stably discharging the air filtered by the third filter. In this case, the third filter 18 has a filtration function of up to 1 탆.

The third filter 18 is disposed inside the third filter 18 so that air that has been thirdly filtered through the third filter 18 is sucked inward and stably discharged toward the outlet 30. [ And a filtering net 19 for supporting a space inside the filter net 19.

The suction unit 20 is provided at one end of the case 12 and supports the air containing oil mist to the case 12 to be sucked.

The suction unit 20 includes a first lid 22 which is in close contact with one end of the case 12 and a suction port 24 which is formed at the center of the first lid 22 and constitutes a passage through which air is sucked inward And a depressed perforated plate 26 formed at one end of the first lid 22 so as to disperse the air sucked through the suction port 24 to improve the filtering function.

The first lid 22 is in close contact with one end of the case 12 and functions to provide a sealing force so that air can be sucked only through the suction port 24. In this case, the first lid 22 is provided with a locking device for supporting the first lid 22 so as to be detachably attached to the case 12.

The suction port 24 functions to form a passage through which the air containing the oil mist is sucked by the suction force acting on the impeller 15 of the main body 10. [

The recessed perforated plate 26 is formed to have a certain depth in a direction in which the first end of the first lid 22, that is, the main body 10, is positioned, So that the primary filtration by the first filter 16 can be stably performed.

As shown in FIG. 4, the recessed perforated plate 26 is formed with a depressed space which is recessed at a predetermined depth at one end of the first lid 22, and a plurality of perforations having the same size are formed at a predetermined interval, Air sucked through the suction port 24 is discharged into a plurality of pores while staying in the depressed space. At this time, air collides with a plate on which no pore is formed, so that the viscous oil and particulate metal A part of the dust or the like is filtered.

In addition, as a part of the oil mist is filtered by the piercing of the recessed perforated plate 26, the pollution degree of the air acting on the first filter 16 of the main body 10 is significantly lowered compared with the conventional one, Thereby improving filtration performance.

The suction force of the air acting on the first filter 16 is lowered as the air stagnated in the recessed space is dispersed and sucked into the main body 10 by the plurality of holes of the recessed perforated plate 26, 1 < / RTI > filter 16, thereby significantly increasing the service life.

In addition, the depressed perforated plate 26 is not limited to a plurality of perforations. The perforated perforated plate 26 may be formed of a mesh network. The perforated perforated plate 26 functions to partially remove oil mist and dispersion of air sucked through the suction port 22 Any structure or shape can be used.

The pierced perforated plate 26 may be integrally formed at one end of the first lid 22 or may be separately formed and then integrally joined by spot welding or fastening means.

In addition, the pierced perforated plate 26 may be formed in a plate-like manner to be attached to the first lid 22 without forming a recessed space. It can be selected depending on the purpose of use or the product, It is preferable that the air sucked through the suction port 24 has a space in which the air can stay, thereby facilitating the easy dispersion of the air.

And a drain (40) for supporting an oil or particulate metal powder having a viscosity that is partially filtered through the recessed perforated plate (26) to be discharged to the outside.

The drain 40 is formed at a lower side of the inside of the case 12 of the main body 10 and forms a flow path through which filtration residue such as oil or metal powder is partially filtered through the pierced perforated plate 26 And a drain valve 44 for guiding the filtration residue transferred through the guide plate 42 to be discharged to the outside.
4, the guide plate 42 is formed at one end thereof at the lower end of the depressed perforated plate 26 and at an inclined surface at the other end which is inclined downward at a predetermined angle. The depressed perforated plate 26 So that the filtration residue due to the reverse flow of the filtration residue collected by the wind force inhaled through the suction port 24 is lowered. .

The discharge unit 30 is provided at the other end of the case 12 and supports the air filtered through the main body 10 to be discharged to the outside.

The discharge unit 30 includes a second lid 32 which is in close contact with the other end of the case 12 and an outlet 34 which is formed at the center of the second lid 32 and constitutes a passage through which air is discharged .

The second lid 32 functions to provide a sealing force so that air is discharged only through the discharge port 34 by closely contacting the other end of the case 12. The second lid 32 is provided with a case 12, As shown in Fig.

In addition, a fourth filter (36) may be provided in the discharge part (30) to quench the air discharged through the discharge port (34) to support discharge of high purity air. In this case, the fourth filter 36 is a filter that performs a filtering function to 0.3 μm or less.

First, the air containing the oil mist is sucked into the main body 10 through the suction port 24 of the suction unit 20.

At this time, the air that has passed through the suction port 24 is retained in the depressed space formed in the depressed perforated plate 26, and the air enters the first filter 16 of the main body 10 while air is dispersed through the plurality of pores.

In this case, the air entering the depressed space enters the perforations formed in the depressed perforated plate 26, but a part of the air impinges on the plate so that the filtration residues such as viscous oil and particulate metal powder contained in the air It flows downward along the plate.

The filtration residues flowing down along the plate of the pierced perforated plate 26 are collected at the lower end and the collected filtration residue is guided along the guide plate 42 formed at the inner lower end of the case 12, Through the drain valve 44 constituted at one side of the drain valve 44.

On the other hand, air partially filtered through the depressed perforated plate 26 is filtered through the first to third filters 16, 17 and 18 formed in the main body 10, The high-purity air is discharged to the outside through the discharge portion 30, whereby the function of the oil mist dust collector 1 is completed.

The above description is only one example for carrying out the oil mist dust collector, and the present invention is not limited to the above embodiment. It will be understood by those skilled in the art that various changes may be made without departing from the spirit of the invention.

1: Oil mist dust collector 10:
12: Case 14: Suction motor
15: impeller 16: first filter
17: second filter 18: third filter
19: filter net 20:
22: first cover 24: inlet
26: depressed perforated plate 30:
32: Second cover 34: Outlet
36: fourth filter 40: drain
42: guide plate 44: drain valve

Claims (5)

A main body portion including a case and a suction motor which is formed on the inner side of the case and has an impeller at one end thereof and first to third filters sequentially arranged to perform a filtering function inside the case; A first lid for sealing one end of the case, an intake port formed at one end of the first lid to form a passage for sucking air into the main body, and a recessed perforated plate formed at the other end of the first lid to disperse the intake air A discharge port formed at a center of the second lid and constituting a passage through which air is discharged, and a drain disposed at a lower end of the main body, The air containing the oil mist sucked through the suction unit is filtered to remove air having a high purity through the discharge unit The oil mist accumulator comprising:
The perforated perforated plate 26 is formed with a plurality of perforations having the same size at predetermined intervals and a recessed space is formed at one end of the first lid 22 so as to have a predetermined depth to reduce the suction pressure sucked through the inlet 24 And performs a primary filtration function of filtering the oil and particulate metal powder contained in the intake air by the non-pierced portion of the intake air dispersed by the entire pierced portion;
The first filter (16) is configured at one end of the depressed perforated plate (26) to perform a filtration function of up to 25 mu m;
The second filter 17 is disposed behind the impeller 15 on the basis of the intake direction of the intake air so as to perform a filtration function of up to 10 mu m on the remnant that has not been filtered by the first filter 16 ;
The third filter (18) is arranged behind the second filter (17) and is configured to perform a filtering function of up to 1 탆;
A space is formed in the inside of the third filter (18) so that the filtered air enters the inside of the third filter (18) from the outside of the third filter (18) (19) which is made up of a plurality of nozzles
The drain 40 includes a guide plate 42 having one end positioned at the lower center of the recessed perforated plate 26 and forming a flow path for discharging the filtration residue filtered by the recessed perforated plate 26, And a drain valve (44) configured to interrupt the discharge of the filtration residue;
The guide plate (42) is inclined downwardly at a predetermined angle from the depressed perforated plate (26) so that the filtration residue is prevented from being sucked back by the suction pressure by the suction pressure.
And the oil mist accumulator. delete delete delete delete

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