KR20180020584A - Oilmist collector - Google Patents

Abstract

The present invention relates to an oil mist collector for trapping oil-aqueous mist and oil smoke generated from machine processing or the like. To achieve the purpose, the oil mist collector of the present invention comprises three parts including a lower part, a middle part, and an upper part. More particularly, the lower part includes a suction inlet, a free filter, a centrifugal device, a punching outer wall, an oil blocking plate, an oil outlet, which are means for separating oil from introduced air. The middle part includes a motor and an impeller, which are means for sucking air. The upper part includes a filter for trapping oil smoke, which is a fine particle, and an air outlet. According to the means for separating oil in the lower part of the oil mist collector, air containing oil mist or the like is sucked through the suction inlet, immediately passes through the free filter, and chips and large particles are filtered while the air passes through the free filter. Particles which have upwardly moved change a direction thereof and downwardly pass through a first centrifugal device including a screw. Oil is stacked while the particles downwardly pass through the first centrifugal device, and the particles are downwardly moved. Moreover, the particles change a direction thereof, again, and pass through a second centrifugal device. The second centrifugal device is formed in an upper part along with the punching outer wall and has the oil blocking plate installed in an end thereof. The centrifugally separated oil is introduced into the inside of the punching outer wall, and only air passes through the same. The oil introduced into the punching outer wall does not inwardly come out due to back wind and the oil blocking plate, stays in a space between the punching outer wall and a body inner wall, and is discharged to the outside through the oil outlet. According to the present invention, a direction of air flow is changed and centrifugal rotation is performed to maximally make use of characteristics of the oil mist which is a liquid particle. Inertia is used through direction conversion, and oil continuously contacts along with the outer wall by a centrifugal force, thereby trapping oil mist by maximizing the use of attachment and aggregation of the oil mist.

Description

Oil mist collector {Oilmist collector}

      The present invention relates to an oil mist precipitator for collecting oil-soluble mist and oil smoke generated in a machining process.

The present invention relates to an oil mist dust collector. The method of collecting the oil mist can be roughly classified into a filter dust collecting method, a centrifugal separating method, an electric dust collecting method, and a mixing method combining these methods. The present invention relates to a centrifugation method among these methods. The centrifugal separation method is classified into a centrifugal separation method using a drum such as patent US 6267794 B1, a centrifugal separation method using a disk such as patent KR 10-1347942, and a centrifugal separation method using a screw such as a patent KR 10-0361346. The present invention corresponds to a centrifugal separation method using a screw among these centrifugal separation methods.

Briefly described, the present invention is a centrifugal oil mist dust collector using a screw.

The drum type and the disk type generate centrifugal force by rotating the drum and the disk by an electric power, but the screw type is a centrifugal type oil mist precipitator that generates centrifugal force naturally by flow of the fluid only by the non- There is a difference. Therefore, the drum type and the disk type are mandatory centrifugal separation using power, but the screw type is a natural centrifugal separation. The drum type and the disk type are one-time centrifugal separation by the rotation of the drum and the disk, but the screw type is a continuous centrifugal separation capable of adjusting the length of the screw.

Among the conventional oil mist centrifuge technologies, there are US 7311744 B2 and KR 10-0361346 using screw and guide vanes. Recent advances in processing equipment technology have resulted in faster processing speeds and the appearance of new materials has also changed the types and particle sizes of contaminants generated during processing. Therefore, it is difficult to sufficiently cope with the present processing technology and contaminants by the above-described technology.

The conventional technique is merely centrifugal separation in one direction only, so that the dust collecting efficiency is low to completely capture the oil mist and the oil smoke, which is suitable for the pretreatment process before the main dust collecting. Accordingly, it is an object of the present invention to effectively collect the changing processing technique and the accompanying oil mist.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a double centrifugal separator which forms a downward flow and a downward flow.

In order to effectively collect oil-soluble mist and oil smoke generated in machining, etc., a centrifugal separator is adopted as a dual device, and the flow of the airflow is changed downward and upward, and the downward and upward rotating airflow A centrifugal separator is provided in order to increase the collection efficiency.

In order to solve the above-mentioned problems, the present invention adopts a centrifugal separator as a means for effectively collecting oil-soluble mist, oil smoke and the like generated in machining and the like, and also makes the airflow rotate downward and upward , Thereby changing the air flow.

In order to cope with a changing pore technology and various contaminants, a pre-filter (20) capable of collecting chips and other coarse particles in an inlet stage of the inlet (10) is installed inside a suction pipe The centrifugal separator 30 is provided to separate the oil and the inertial effect is obtained by changing the air flow again. In the next step, A secondary screw centrifugal separator 40 capable of separating can be installed to enhance the collection efficiency by centrifugal separation in different directions.

The oil separated from the secondary centrifugal separator 40 passes through the perforated outer wall 50 and stays between the inner wall 53 of the main body and the collected oil flows backward due to the centrifugal rotary airflow and the oil shutoff plate 51 And is discharged to the outside through the oil discharge port 52. [

In order to effectively collect the oil-soluble mist and the oil smoke, the present invention includes a pre-filter (20) for removing coarse particles such as chips and a primary centrifugal separator (30) A second centrifugal separator 40 is provided to rotate upwards again and a perforated outer wall 50 is provided so that the centrifuged oil is collected between the inner wall 53 of the main body and the oil shutoff plate And an oil discharge port 52 for discharging the collected oil to the outside and a filter 80 for collecting a minute oil smokes which are difficult to centrifugally collect are finally provided so that oil mist and oil smoke Is most effectively trapped by the oil mist accumulator.

Therefore, the present invention has a remarkable effect of effectively collecting oil mist and oil smoke by providing a double centrifugal separator, a filter and an oil shutoff plate having different directions.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing an oil mist dust collector of the present invention. FIG.
2 is a flow chart showing the dust collecting process of the oil mist dust collector according to the present invention.
[Fig. 3] A-A '

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil mist trap for collecting oil-soluble mist and oil smoke generated in machining, etc., and oil mist and oil smoke generated along with the development of processing technology have been varied in particle size and generation amount. A suction port 10 and an oil discharge port 52 are formed in the lower part to collect the dust and a prefilter 20 for removing coarse particles such as chips is installed in the suction pipe 11 extending to the suction port 10 And a guide vane 31 is spirally provided on the outer wall of the suction pipe 11. A guide vane 41 is spirally installed on the outer wall of the first centrifugal separator 30 The oil separated from the second centrifugal separator 40 passes through the perforated outer wall 50 and stays between the perforated outer wall 50 and the inner wall 53 of the main body , The oil is prevented from flowing backward to the oil blocking plate 52 located at the end of the perforation outer wall 50 and is discharged to the outside through the oil discharge port 11 installed at the lower portion. An impeller 60 and a motor 70 for driving the impeller 60 are formed in the upper part of the separator. The airflow passing through the impeller 60 enters into the upper body, and a filter 80 , And an outlet (90) for fixing the filter and allowing air discharge.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing the oil mist dust collector of the present invention, FIG. 2 is a flowchart showing a dust collecting process of the oil mist dust collector according to the present invention, and FIG. 3 is a sectional view taken along line A-A 'of FIG.

The centrifugal separator provided in the present invention has a merit in that the structure is simple, uniform centrifugal force can be continuously obtained, and maintenance is not required, compared with drum centrifugal separators and disk centrifugal separators of other methods.

Patent Document KR 10-0594581 relates to a vacuum cleaner, and more particularly, to a cyclone vacuum cleaner that does not use dust bags, which is frequently used in vacuum cleaners using conventional dust bags, and more specifically, To a multi-stage cyclone vacuum cleaner.

The cyclone dust collecting principle of these vacuum cleaners is based on the general cyclone dust collection theory which uses a centrifugal force to give a gas containing dust a much greater acceleration than gravity so that the separation speed between the dust and the gas becomes larger than the sedimentation by the weight .

However, the oil mist dust collector of the present invention is different from a vacuum cleaner for treating particulate dry dust, but has a feature of utilizing the characteristics of an oil mist such as a liquid state in which particles adhere and cohere with each other. In other words, there is a difference in using adhesion and cohesion rather than acceleration.

In order to increase the adhesion force and cohesion force of the oil mist, it is necessary to increase the contact time as much as possible, to maintain a constant centrifugal force with the screw, and to maximize the collection efficiency by maximizing the contact time at the minimum size with the downward and upward double centrifugal separator .

10 Inlet 11 Inlet
20 prefilter
30 first centrifugal separator 31 guide blades 32 first centrifugal separator outer wall
40 Second centrifugal separator 41 Guide blade
50 Perforated outer wall 51 Oil barrier plate 52 Oil outlet 53 Body inner wall
60 impeller
70 drive motor
80 filter
90 outlet
100 Oil mist precipitator

Claims (1)

In order to trap oil-soluble mist and oil smoke generated in machining and the like, the oil mist dust collector is composed of three parts, and includes an inlet 10 and an oil outlet 52, a pre-filter 20 for collecting large particles, A separating device composed of a primary centrifugal separator 30 and an upstream secondary centrifugal separator 40, a piercing outer wall 50 for blocking the re-inflow of oil, and an oil blocking plate 51, a motor part composed of a motor 70 and an impeller 60, which are means for introducing air into the oil separating device, and a mechanical part which finally collects oil smoke, And a discharge port (90) for discharging the purified air. The oil mist accumulator

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