KR102543472B1 - Contaminated gas purification system with improved purification performance - Google Patents

Abstract

The present invention relates to a system capable of further improving the dust collection efficiency of an electric precipitator through mist spraying at the front end in purifying complex pollutant gases discharged from various facilities or devices such as odor and dust generating facilities and diesel generators. Specifically, a housing having a purification space inside and having an inlet and an outlet communicating with the purification space on one side and the other side, respectively; one or more electrostatic precipitators installed in the purification space to remove contaminants from the polluted gas introduced through the inlet by an electric precipitate method; an adsorption unit installed at an outlet of the housing and configured to remove contaminants from the pollutant gas discharged through the electrostatic precipitator by an adsorption method; and a mist spraying unit installed at a front end of the electrostatic precipitator in the purification space and spraying mist to the polluted gas introduced through the inlet.

Description

Contaminated gas purification system with improved purification performance}

The present invention relates to a system capable of further improving the dust collection efficiency of an electric precipitator through mist spraying at the front end in purifying complex pollutant gases discharged from various facilities or devices such as odor and dust generating facilities and diesel generators.

Gases discharged from various factories, diesel generators, etc. contain various harmful chemicals such as volatile organic compounds (VOCs), which are a major cause of air pollution, or components that cause odor.

The volatile organic compound has various types, but aromatic compounds such as benzene and phenol, hydrocarbon compounds such as alkanes and alkenes, and halogens such as chlorine ) compounds, heterogeneous hydrocarbons including nitrogen, oxygen, etc.

Until now, various types of physical, chemical, and biological methods have been used in an effort to remove volatile organic compounds and odors, such as a cooling condensation method, a catalytic combustion method, a physical adsorption method, and a cleaning method.

However, among these methods, the physicochemical method has high pollutant gas removal efficiency, but requires a lot of operating costs such as facility and material costs, is uneconomical in reducing low-concentration waste gas to the emission standard, and is not economical in reducing secondary pollutants (SOx, CO, NOx) was generated.

As an example of the prior art for solving these problems, Korean Patent Registration No. 10-2036274 discloses a scrubber unit having an internal space and purifying harmful air introduced through an air inlet formed on one side; a water tank installed under the scrubber unit and storing washing water for purifying harmful air; an intake/exhaust unit installed on top of the scrubber unit and having a blower to introduce harmful air into the scrubber unit through the air inlet and then discharge purified air purified by the scrubber unit through an exhaust port formed on the upper side; and a controller for controlling the supply of washing water stored in the water tank to the scrubber unit and controlling driving of the blower so that harmful air flows into the scrubber unit.

However, in the case of the above technology, there is a problem in that it is difficult to expect sufficient purification efficiency for gas mixed with complex contaminants.

Republic of Korea Patent Registration No. 10-2036274

Therefore, the present invention was invented to solve the problems of the prior art as described above, and in the purification and treatment of complex pollutant gases discharged from various facilities or devices such as odor and dust generating facilities, diesel generators, etc., through mist spraying at the front end It is an object to provide a system capable of further improving the dust collection efficiency of an electrostatic precipitator.

As a means for achieving the above object, the pollutant gas purification system with improved purification performance of the present invention (hereinafter referred to as the "system of the present invention") is provided with a purification space therein, and the purification space and A housing configured with an inlet and an outlet communicating with each other; one or more electrostatic precipitators installed in the purification space to remove contaminants from the polluted gas introduced through the inlet by an electric precipitate method; an adsorption unit installed at an outlet of the housing and configured to remove contaminants from the pollutant gas discharged through the electrostatic precipitator by an adsorption method; and a mist spraying unit installed at a front end of the electrostatic precipitator in the purification space and spraying mist to the polluted gas introduced through the inlet.

As an example, it is characterized in that it further includes; a demister installed between the mist spraying unit and the electrostatic precipitator in the purification space to filter polluted moisture and oil components from the polluted gas passing through the mist spraying unit.

As an example, the demister includes a main body having an inner space and provided with openings on the front and rear surfaces, a mesh structure filtering cover coupled to each opening of the main body, and accommodated in the inner space of the main body. It is characterized by including a filter member for separating moisture contained in the polluted gas passing through.

As an example, the filter member is characterized in that it is made of metal processing by-products discharged in the process of metal cutting.

As an example, the metal processing by-product is characterized by having a spiral coil structure.

As an example, the lower surface of the main body is composed of a net structure, and is characterized in that a collecting unit is further configured to communicate with the lower surface of the main body and to collect the moisture separated from the polluted gas by the filter member by descending.

As an example, one or more induction tubes are formed in the upper and lower directions of the main body, the ends are exposed to the collecting part, and a plurality of through holes are formed. It is characterized in that the induction bar is further configured.

As an example, it is characterized in that a blowing line is further configured by a valve at the end exposed to the collecting part in the induction pipe.

As an example, it is characterized in that it further includes; guide vanes mounted at the inlet of the housing and allowing pollutant gas from a pollutant gas discharge source to be discharged to the front end of the purification space while forming a vortex.

As an example, the induction wing unit includes an exterior portion mounted on a pollutant gas discharge line of a pollutant gas discharge source, an inner tube configured inside the exterior portion and having a plurality of guide borders formed in a spiral shape on an inner periphery, and the inner tube It protrudes from the outer periphery of the outer periphery and is connected to the inner periphery of the outer periphery and is characterized in that it includes a vortex machine including a plurality of wings in which an inclination gradient is formed in one direction.

As described above, the system of the present invention has the advantage of being able to purify complex pollutant gases discharged from various facilities or devices such as odor and dust generating facilities and diesel generators.

In particular, as ultra-fine mist is sprayed from the front end of the purification space, SOx, NOx, and VOC contained in the polluted gas are turned into fine particles and removed through the electrostatic precipitator at the rear, enabling SOx, NOx, and VOC in a low-temperature exhaust gas environment. etc. can be expected.

In addition, the water particles in the mist reduce the temperature of the high-temperature pollutant gas introduced into the mist, and the electrical resistivity is reduced due to the increase in water content by spraying the mist. There is an effect that the purification performance of the device for polluted gas can be further improved.

1 is a block diagram illustrating the system of the present invention;
Figure 2 is a side cross-sectional view showing the configuration of a system according to an embodiment of the present invention.
Figure 3 is a side cross-sectional view showing an induction wing according to an embodiment of the present invention.
Figure 4 is a perspective view showing an induction wing according to an embodiment of the present invention.
Figure 5 is an operating state diagram of the guide wing shown in Figure 4;
6 is a graph showing change characteristics of electrical resistivity according to the temperature of exhaust gas.
7 is a graph showing change characteristics of electrical resistivity according to the moisture content of exhaust gas.
8a is a perspective view illustrating a demister according to an embodiment of the present invention;
8B is an exploded perspective view showing a demister according to an embodiment of the present invention;
9 is a photograph showing a metal processing by-product according to an embodiment of the present invention.
10 is a side cross-sectional view showing an operating state of a demister according to an embodiment of the present invention.
11 and 12 are diagrams illustrating a collecting unit of a demister according to an embodiment of the present invention.

In describing the present invention, the terms or words used in this specification and claims are based on the principle that the inventor can appropriately define the concept of the term in order to best describe his or her invention. should be interpreted as a meaning and concept that corresponds to the technical idea of

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

Referring to FIG. 1, the system of the present invention includes a housing 10 provided with a purification space 100, an electrostatic precipitator 40 installed in the housing 10 to purify and process the introduced pollutant gas, and an adsorption unit. 70 and a mist spraying unit 20 installed at the front end of the electrostatic precipitator 40 in the purification space 100 to spray fine mist to increase the dust collection efficiency of the electrostatic precipitator 100.

In addition, the system of the present invention further includes a demister 30 installed between the mist spraying unit 20 and the electrostatic precipitator 40 in the purification space 100.

The housing 10 accommodates the electric precipitator 40 and the like and provides a space in which the pollutant gas flowing from the pollutant gas emission source is purified by the electric precipitator 40 and the like and then discharged.

Here, the "pollutant gas emission source" may be defined as various facilities or devices that emit pollutant gases, such as odor and dust generating facilities and diesel generators.

As shown in 2, the housing 10 is provided with a purification space 100 therein, and an inlet 110 and an outlet 120 communicating with the purification space 100 may be configured on one side and the other side, respectively. there is. Although not shown in the drawings, the discharge line of the pollutant gas discharge source is connected to the inlet 110 of the housing 10 so that polluted gas can be directly introduced into the purification space 100 .

One or more electrostatic precipitators 40 may be installed in the purification space 100, and contaminants are removed from the pollutant gas introduced through the inlet 110 of the housing 10 by an electric precipitator method.

At this time, as mentioned above, the mist spraying unit 20 and the demister 30 may be provided at the front end of the electrostatic precipitator 40.

Accordingly, the polluted gas flowing into the electrostatic precipitator 40 may be in a granular state by mist spraying of the mist spraying unit 20, and may be in a state in which polluted moisture is removed by the demister 30.

The electric precipitator 40 is composed of a plurality of discharge plates and dust collection plates, and is operated by a control signal input from an external control unit 50 to remove particulate and gaseous pollutants from polluted gas. It is possible to remove low molecular weight inorganic or organic substances.

Since there are various known technologies for the electric precipitator 40, a detailed description thereof will be omitted.

The adsorption unit 70 is mounted on the outlet 120 of the housing 10 and allows contaminants to be removed from the pollutant gas discharged through the electrostatic precipitator 40 by an adsorption method.

That is, as shown in FIG. 2, the polluted gas in a state in which particulate and gaseous contaminants, particularly trace amounts of low-molecular-weight contaminants are removed, passes through the outlet 120 of the housing 10 as it passes through the electrostatic precipitator 40. Once again, gaseous contaminants are removed by adsorption.

For example, the adsorption unit 70 may remove various gaseous pollutants, such as adsorbing and removing organic materials having a relatively high molecular weight such as acetaldehyde, benzene, and styrene.

The adsorption unit 70 may include a filtration layer filled with an adsorbent, although not shown in the drawings, and in this case, activated carbon, zeolite, or the like may be applied as the adsorbent.

The mist spraying unit 20 is installed at the front end of the electrostatic precipitator 40 in the purification space 100, and sprays mist to the polluted gas introduced through the inlet 110 of the housing 10 so as to flow in By converting the contaminated gas into particles, the efficiency of collecting the incident material by the electrostatic precipitator 40 at the rear stage is increased.

In general, fine dust refers to particulate matter of 10 micrometers or more, and may be generated as fine dust particles directly from naturally occurring mineral particles or emission sources. In particular, in the case of SOx, NOx, NH3, VOC, etc., it may react with water vapor in the air to be secondaryly generated.

The mist spraying unit 20 of the present invention uses the above-described secondary generation of fine dust, and sprays fine mist at the front end of the electrostatic precipitator 40, SOx, NOx, and VOC that may be included in the introduced pollutant gas. It reacts with the sprayed mist and converts it into fine particles so that it can be collected and treated by the electrostatic precipitator 40, thereby reducing SOx, NOx, VOC, and the like.

The mist sprayed from the mist spraying unit 20 is in the form of water vapor, and at this time, water particles of the mist preferably have a size of 10 ^-6 meters to 10 ^-7 meters.

In particular, the mist spraying unit 20 reduces the temperature of the high-temperature polluted gas introduced into the purification space 100 of the housing 10 to improve the dust collection efficiency of the electric precipitator 40 provided at the rear.

The temperature of the exhaust gas discharged from the diesel generator or the like is usually at a high temperature of 350° C. to 400° C., and the temperature may be lowered as heat is absorbed by contact with moisture particles of the mist sprayed from the mist spraying unit 20.

As shown in FIG. 6, it is known that the electric precipitator 40 increases the dust collection efficiency by reducing the electrical resistivity when the temperature of the introduced target gas is about 150 to 160 ° C or less or 250 ° C or more.

The electrical resistivity is one of the main factors influencing the dust collection performance of the electric precipitator 40, and when the electrical resistivity is less than 10 ⁴ Ω-cm, the dust attached to the dust collecting plate quickly releases electric charges, thereby losing adhesion and causing re-scattering. can

In the range of 10 ⁴ ~5×10 ¹⁰ Ω-cm, normal dust collection performance is shown, whereas in the vicinity of 5×10 ¹⁰ Ω-cm, the dust layer causes local thermal breakdown, resulting in a decrease in voltage, but vibration and sparks of the discharge electrode. Therefore, it is known that the voltage cannot be raised and the dust collection efficiency is lowered.

Therefore, the mist spraying unit 20 reduces the temperature of the introduced pollutant gas to a predetermined target temperature or less so that the electrostatic precipitator 40 connected to the rear end can express optimal dust collection efficiency.

At this time, as mentioned above, the target temperature is preferably 150 ° C to 160 ° C or less, and the mist spraying unit 20 selectively according to the inflow amount and temperature of the pollutant gas in supplying and spraying the mist to reach the target temperature. The supply amount of the mist can be controlled.

In addition, as shown in FIG. 7, since it is known that the electrical resistivity of a typical exhaust gas decreases as the moisture content increases, the dust collection efficiency of the electrostatic precipitator 40 using corona discharge can be further improved, resulting in contamination. It is to double the purification efficiency of the material.

For example, as shown in FIG. 2, the mist spraying unit 20 includes a water tank 200 mounted on the housing 10 and a water pump 210 for supplying water accommodated in the water tank 200. And, the transfer pipe 220 for moving the water supplied by the operation of the water pump 210 and the demister 30 and the electrostatic precipitator 40 in the purification space 100 of the housing 10 It may be configured to include one or more spray nozzles 230 installed at the front end to discharge the water transported by the transfer pipe 220 as a fine mist.

The demister 30 is provided between the mist spraying unit 20 and the electrostatic precipitator 40 in the purification space 100 and separates the polluted moisture contained in the polluted gas introduced in advance by condensation and centrifugal force. It is possible to reduce the load of the electric precipitator 40 provided at the rear.

A demister 30 according to an embodiment of the present invention includes a main body 31, a filter cover 32 and a filter member 33 as shown in FIGS. 8A and 8B.

The main body 31 has an inner space 310 and openings 312 are provided on the front and rear surfaces, respectively, and supports the load of the filter member 33 accommodated in the inner space 310.

The main body 31 may have the inner space 310 and the opening 312 formed by forming an outer edge by combining a plurality of unit frames 311 .

In this case, the frame 311 is preferably made of a metal material having excellent corrosion resistance without deformation even at a high temperature in consideration of the inflow of exhaust gas discharged in a high temperature state.

For example, the frame 311 may be made of stainless steel.

As shown in FIG. 8A, the main body 31 may be equipped with a handle 313 or a lifting ring (not shown) on one side selected to facilitate lifting and transportation.

In addition, it is preferable that the main body 31 is provided with a reinforcing means capable of preventing deformation such as distortion caused by a load when lifting or transporting the demister 30 .

For example, the main body 31 may further include one or more reinforcing bars 314 coupled in a diagonal direction to an opening 312 selected from a front side or a rear side.

The main body 31 is introduced through the opening 312 formed on the front side through the mist spraying unit 20 at the front end, and the contaminated gas introduced through the opening 312 formed on the rear side is discharged. The reinforcing bar 314 preferably has a bar shape that can minimize the effect on the flow of pollutant gas.

And although the main body 31 is not shown in the drawings, a separate storage space capable of collecting and storing the moisture filtered through the filter member 33 may be provided at the lower part of the inner space 310, A discharge pipe and an on/off valve are connected to the storage space to selectively discharge moisture stored in the storage space.

The filter cover 32 is coupled to each opening 312 of the main body 31 and has a metal mesh structure to prevent separation or separation of the filter member 33 accommodated in the main body 31 while preventing It allows the inflow and outflow of pollutant gas to be carried out smoothly.

Here, it is natural that the hole size of the metal mesh should be large enough to prevent the metal processing by-product 330 of the filter member 33 from passing through.

In addition, considering that the filter cover 32 is also exposed to a moisture environment, it is preferable to be composed of a stainless steel wire net having excellent durability and corrosion resistance.

The filter member 33 is accommodated in the inner space 310 of the main body 31 and separates and processes moisture included in polluted gas passing through the main body 31 .

For example, as shown in FIG. 9 , the filter member 33 may be made of metal processing by-products 330 discharged during metal cutting.

That is, in the demister 30, as a filter member 33 for removing moisture, a large amount of metal that is separated and peeled from the raw material during the metal cutting process performed by various machine tools such as lathes, milling machines, drilling machines, CNCs, etc. it will be utilized.

In a normal metal cutting process, the metal processing by-product 330 may be separated and separated from the raw material in the form of a coil having a spiral as well as a linear shape of a straight line or a curve.

The irregular metal processing by-products 330 may be filled in the inner space 310 of the main body 31 in a compressed state, and contact with the gas as the introduced contaminant gas passes through the main body 31. In addition to increasing the area, the residence time is delayed to improve the water separation efficiency.

That is, moisture is condensed from the polluted gas by the thermally conductive material of the metal processing by-product 330, but condensation efficiency is increased by increasing the contact area and residence time.

In particular, as shown in FIG. 10, the metal processing by-product 330 has a coil shape having a spiral shape, so that a vortex is formed in the polluted gas by this shape, so that the moisture contained in the polluted gas is acted on by centrifugal force to prevent contamination. It is to further increase the separation efficiency of water from gas.

Hereinafter, referring to FIG. 10 , an operating process of the demister 30 according to the present embodiment will be described.

First, in the demister 30, the polluted gas passing through the mist spraying unit 20 is introduced through the filtering cover 32 installed in the front opening 312 of the main body 31.

As mentioned above, the filter cover 32 has a metal mesh structure to prevent separation or separation of the filter member 33 accommodated in the main body 31, as well as As the moisture particles come into contact with the mesh, the function of partially filtering moisture or moisture containing contaminants can be performed in parallel.

Thereafter, the polluted gas passing through the filtering cover 32 installed in the front opening 312 of the main body 31 flows into the filter member 33 accommodated in the inner space 310 of the main body 31 .

The filter member 33 is filled with a large amount of metal processing by-products 330 generated in the process of metal cutting in a compressed form. In the process of moving toward the opening 312, it passes through the gap between the metal processing by-products 330. As shown in FIG. 10, a vortex W is induced in the fluid so that the surface and Condensation efficiency is increased by increasing the contact area and residence time, and in addition, the removal efficiency of moisture is improved by the action of centrifugal force by the formation of vortex.

Thereafter, the polluted gas from which moisture is removed from the filter member 33 passes through the filter cover 32 having a metal mesh structure mounted on the rear opening 312 of the main body 31 once more, and in this process, the polluted gas Residual moisture contained in may be adsorbed and removed on the surface of the mesh of the filter cover 32.

Meanwhile, in the demister 30 of the present invention, in FIGS. 11 and 12, an embodiment for further increasing the efficiency of removing moisture from polluted gas is presented.

The lower surface 315 of the body 31 according to the present embodiment is configured in a network structure, the body 31 communicates with the lower surface 315, and the moisture separated from the polluted gas by the filter member 33 descends. It is characterized in that the collection unit 37 is further configured to collect.

The lower surface 315 of the main body 31 is a frame 311 forming the lower surface, which is not shown in the figure, but is composed of a net structure and is separated from the filter member 33 by communicating with the collecting part 37 at the lower part. This is to allow moisture to descend and be collected by the collecting unit 37 .

In addition to this, an induction pipe 34 is further configured, and the induction pipe 34 is configured in the upper and lower directions of the main body 31, and the end is exposed to the collecting part 37 and has a plurality of through holes 340 ) is characterized in that it is formed.

In this way, a plurality of induction tubes 34 are formed, and the moisture separated by condensation in the filter member 33 is guided into the induction tube 34 through the through hole 340 and collected by the collecting unit 37. is to make it That is, the moisture separated by the filter member 33 is easily guided to the collecting unit 37 to control the deterioration in the separation efficiency of moisture from the polluted gas due to the saturation of the filter member 33 with water.

In addition, a plurality of guide bars 35 protruding from the guide pipe 34 and forming an upward gradient are further configured so that moisture from the filter member 33 in a wider area is guided to the guide pipe 34. is to do

In addition, as the function of holding the filter member 33 is expressed in the entire area of the filter member 33 by the configuration of the induction bar 35, the metal processing by-products 330 in the filter member 33 over time It is to control the phenomenon of being pulled downward by its own weight.

That is, by controlling the tendency of the metal processing by-products 330 to be lowered by their own weight in the filter member 33, the deterioration of the water removal efficiency of the filter member 33 over time is controlled.

As shown in the drawing, it is appropriate that the induction bar 35 is formed in a shape in which a groove is formed on the upper surface so that a flow path through which moisture can descend is formed.

In addition to this, the present embodiment is characterized in that the blowing line 36 is further configured by the valve 362 at the end exposed to the collecting part 37 in the induction pipe 34.

A blower 361 is configured in the blower line 36 so that outside air is injected into the induction pipe 34 through the blower line 36 so that air is blown into the filter member 33 .

In this way, by allowing outside air (a) to flow into the filter member 33, in addition to easily separating moisture from the filter member 33, in the process of passing polluted gas through the filter member 33, the filter member 33 This is to control the deterioration of the condensation efficiency of the filter member 33 as the temperature rises. That is, the temperature of the filter member 33 is lowered by air blowing inside the filter member 33 .

In this way, the operation of the blower line 36 by the blower 361 and the valve 362 may be selectively operated in a plurality of induction pipes 34, or the entire induction pipe 34 after polluted gas passes through. you can drive

On the other hand, as shown in FIG. 3, the system of the present invention is mounted on the inlet 110 of the housing 10, and the polluted gas from the pollutant gas discharge source is introduced to form a vortex and discharged to the front end of the purification space 100 It may further include an induction wing unit 60 to be.

The guide vane 60 has one end connected to the pollutant gas discharge line in the pollutant gas discharge source to form a vortex so that the polluted gas is uniformly dispersed and introduced into a wider area by the demister 30 at the rear end.

The flow of pollutant gas by the operating mechanism of the guide vane unit 60 is connected not only to the demister 30 but also to the electrostatic precipitator 40 located at the rear end, so that the polluted gas passes uniformly over a wide area, thereby allowing the demister 30 to pass through. 30 and the electrostatic precipitator 40 to ensure uniform treatment of contaminants, thereby further improving purification efficiency.

As shown in FIG. 4, the guide vane unit 60 according to an embodiment of the present invention is spaced apart from the exterior unit 600 mounted on the pollutant gas discharge line of the pollutant gas emission source and inside the exterior unit 600. An inner tube 611 forming a and a plurality of blades 612 protruding from the outer periphery of the inner tube 611 and connected to the inner periphery of the exterior part 600, forming a gradient in one direction Vortex machine including It may be configured to include (610).

Specifically, the exterior part 600 is a configuration for enabling the discharge flow of pollutant gas to proceed efficiently at the end of the polluted gas discharge line, and the material is not limited, but it is preferable to use a steel pipe.

In addition, although not shown in the drawing, the exterior part 600 is configured in a form in which the diameter becomes narrower towards the end, so that the discharge flow of the pollutant gas can be accelerated.

The swirler 610 applies a rotational force to the polluted gas discharged through the exterior part 600 to form a vortex, and may include an inner tube 611 and wings 612.

The inner tube 611 is configured to induce the flow of polluted gas inside the exterior part 600, and although not shown in the drawing, it is composed of a shape in which the diameter gradually decreases in the direction in which the polluted gas flows. Makes sense. With this configuration, based on Bernoulli's theorem, the exhaust flow of the pollutant gas is made stronger to improve the exhaust efficiency.

In addition to this, as shown in 5, the induction wing unit 60 forms a plurality of induction borders 611-1 spirally formed on the inner periphery of the inner tube 611, so that through the exterior unit 600 Even in the case of pollutant gas passing through the inner tube 611 among discharged pollutants, a vortex is formed by the induction frame 611-1 to double the discharge efficiency.

The wings 612 protrude from the outer periphery of the inner tube 611 and are connected to the inner periphery of the exterior part 600 . These wings 612 are to form an inclination gradient in one direction so that a vortex is formed in the polluted gas flowing between the outer part 600 and the inner pipe 611.

In addition, the wing 612 forms a curved surface to control the flow resistance to contaminant gas colliding with the wing 612 .

In this way, the swirler 610 is configured inside the exterior part 600, and as shown in FIG. It is to control the formation of the dead zone by allowing the vortex W2 to be formed respectively. That is, the vortex is uniformly formed in the entire polluted gas passing through the exterior part 600 to double the pollutant gas discharge efficiency.

In addition, the vortex (W1) by the inner tube 611 corresponds to the flow to ensure straightness, and the vortex (W2) by the wing 612 corresponds to the flow to spread to a wider area, so that the guide wing unit 60 ), so that the pollutant gas passing through it is guided farther and wider.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also made according to the present invention. falls within the scope of the rights of

10: housing 20: mist spraying unit
30: demister 40: electrostatic precipitator
60: guide wing unit 70: adsorption unit

Claims (10)

A housing having a purification space inside and having an inlet and an outlet on one side and the other side, respectively, communicating with the purification space;
one or more electrostatic precipitators installed in the purification space to remove contaminants from the polluted gas introduced through the inlet by an electric precipitate method;
an adsorption unit installed at an outlet of the housing and configured to remove contaminants from the pollutant gas discharged through the electrostatic precipitator by an adsorption method;
a mist spraying unit installed at a front end of the electrostatic precipitator in the purification space and spraying mist to the polluted gas introduced through the inlet; and
A demister installed between the mist spraying unit and the electrostatic precipitator in the purification space to filter polluted moisture and oil components from the polluted gas passing through the mist spraying unit; including,
The demister,
A main body having an inner space and provided with openings on the front and rear surfaces of the main body, a filtering cover having a net structure coupled to each opening of the main body, and moisture contained in the polluted gas passing through the main body while being accommodated in the inner space of the main body. Including a filter member for separating,
The filter member is made of metal processing by-products discharged during the metal cutting process,
The lower surface of the main body is composed of a net structure, and a collecting part is further configured to communicate with the lower surface of the main body and allow the moisture separated from the polluted gas by the filter member to descend and be collected,
One or more induction tubes are formed in the upper and lower directions of the main body, the ends are exposed to the collecting part and a plurality of through holes are formed, and a plurality of induction tubes protrude and form an upward inclination gradient. Induction bars are further configured Polluted gas purification system with improved purification performance, characterized by a.
delete delete delete According to claim 1,
The metal processing by-product,
A polluted gas purification system with improved purification performance, characterized in that it has a spiral coil structure.
delete delete According to claim 1,
A polluted gas purification system with improved purification performance, characterized in that a blowing line is further configured by a valve at the end exposed to the collecting part in the induction pipe.
According to claim 1,
A guide vane mounted at the inlet of the housing and allowing pollutant gas from a pollutant gas discharge source to flow in and form a vortex to be discharged to the front end of the purification space. Pollution gas purification system with improved purification performance .
According to claim 9,
The induction wing part,
An exterior part mounted on a pollutant gas discharge line of a polluting gas discharge source, an inner tube formed inside the exterior part and formed with a plurality of induction borders spirally formed on the inner periphery, and protruding from the outer periphery of the inner tube to the inside of the exterior part A pollutant gas purification system with improved purification performance, characterized in that it comprises a vortex machine including a plurality of blades connected to the periphery and forming an inclination gradient in one direction.

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