KR100636845B1 - Plasma apparatus for treating harmful gas - Google Patents

Abstract

The present invention relates to a plasma apparatus for treating harmful gases, which can process harmful gases that need to be treated at a high temperature among gas components harmful to a human body or environment generated in an incinerator or various equipment. It is an object to provide a device.

In order to achieve the above object, the present invention is provided with an inlet communicated with the mixed gas inlet path therein, the body is formed in the treatment space of the mixed gas therein; A cathode provided horizontally in the processing space inside the main body; An anode formed on an inner wall of the processing space proximate the cathode; And a communication unit formed at one end of the processing space and serving as a passage for transferring the plasma-treated gas component toward the cooling apparatus.

Pyrolysis Treatment Equipment, Plasma Generator, Pyrolysis Furnace, Cooling Equipment, Discharge Equipment

Description

Plasma apparatus for treating harmful gas             

1 is a schematic view showing a conventional pyrolysis treatment apparatus.

Figure 2 is a schematic diagram showing a pyrolysis treatment apparatus according to the present invention.

FIG. 3 is a cross-sectional view showing an internal structure of a plasma apparatus that is a main portion of the pyrolysis processing apparatus shown in FIG.

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view taken along the line B-B in FIG.

6A and 6B are front cross-sectional and side cross-sectional views respectively showing front and side views of a thermal sensing chamber, which is a main part of the pyrolysis processing apparatus shown in FIG.

* Description of the symbols for the main parts of the drawings *

100: pyrolysis treatment device 110: main body case

120: wheel 200: pyrolysis furnace

201: container 202: container

203: cover opening and closing device 204: receiving groove

205: constant temperature holding room 206: support

210: heater 220: cover by pyrolysis

250: air inlet 300: plasma apparatus

310: main body 320: inlet

330: mixed gas treatment space 340: cathode

350: anode 360: stepped portion

370: magnetic material 380: communication part

400: mixed gas inlet 500: temperature reduction chamber

510: thermal chamber case 520: communication chamber

530: exhaust port 550: injection pipe

600: blower 700: cooling tank

800: circulation pump

The present invention relates to a plasma apparatus for treating harmful gases, and more particularly, it is possible to efficiently treat harmful gas components that need to be treated at high temperature among gas components harmful to a human body or environment generated in an incinerator or various equipment. The present invention relates to a plasma processing apparatus for gas treatment.

Plasma is a gas that is separated into electrons with negative charges and ions with positive charges at high temperatures, and is a gas that has a high degree of charge separation but is neutral due to the same number of positive and positive charges.

The plasma apparatus refers to an apparatus for generating plasma, and it is necessary to adjust an appropriate atmosphere gas, current, and voltage.

The plasma generated by such a plasma device is very reactive and generates various radicals by reacting with the surrounding gas, and these radicals are frequently used to incinerate or remove them by reacting with harmful gases and dust.

In particular, it can be very useful for treating harmful gases generated during incineration of infectious waste, harmful gases generated during semiconductor processing, and the like. Therefore, the present invention can be applied to a pyrolysis treatment apparatus for treating infectious waste, a household food treatment apparatus, a gas scrubber, a radiation substance treatment apparatus, a special gas treatment apparatus, and the like.

Among them, pyrolysis processing equipment pyrolyzes infectious wastes generated in hospitals, that is, highly infectious wastes such as animal carcasses, extracts, somatic ampoules, urine ampoules, syringes, injection bottles, bandages and gauze, which are different from general household waste. And, refers to a device for treating the toxic gas generated accordingly.

Conventionally, while infecting waste was introduced into an incinerator and injecting air into the incinerator, the waste was incinerated by a burner, and the residue was taken out and disposed of.

However, in the conventional pyrolysis treatment apparatus, harmful gases including dioxins, PFCs (Per Fluoro Compounds), and the like are generated during incineration of infectious waste, and harmful gases are emitted to outside air to contaminate the human body or the surrounding environment.

Dioxin is an organic compound that combines two benzene nuclei with oxygen. It is a carcinogen emitted from waste incinerators, chemical plants and automobiles. Therefore, even those who use livestock or the like are at risk of damaging the reproductive system, immune system, endocrine system, etc. by the toxicity of dioxin.

In addition, dioxins are substances that exist in ng (nanograms), which is 1 billionth of a gram, even if they reduce emissions, so that it is difficult to find and process them once generated, and the cost and time required for detection are considerable. The U.S. Environmental Protection Agency (EPA) has calculated a perfect level of no harm to the human body at 0.01 pg (pigograms per trillion grams) / kg / day. EPA uses 1 pg / 1 kg / 1 day as the realistic limit.

Also, PFC is a generic term for perfluorinated compounds such as CF4, C2F6, SF6, NF3, and C3F8 among the substances that affect global warming, and it is long and stable in the atmosphere, so it does not disappear unless undergoing special treatment process. In addition, it has a strong ultraviolet absorbing ability and thus is a material that greatly affects global warming.

Therefore, not only the incineration of infectious waste but also the post-treatment of harmful gases due to incineration has become a big issue.

1 is a schematic view showing the configuration of a conventional pyrolysis treatment apparatus.

Hereinafter, referring to FIG. 1, the configuration of a conventional pyrolysis treatment apparatus is as follows.

As shown in FIG. 1, a conventional pyrolysis treatment apparatus includes a pyrolysis furnace (1) for primary pyrolysis of waste, a mixing furnace (2) for mixing pyrolysis of waste in the pyrolysis furnace (1), and pyrolysis. After the gas is mixed with air in the mixing furnace (2), the combustion furnace (3) for secondary incineration, the dust collector (4) for collecting the dust of the gas and waste secondary burned in the combustion furnace (3), And a first and second neutralizers 6 and 7 for treating noxious gas in the gas passed through the cleaner 5, and the cleaner 5 for cleaning the gas collected by the dust collector 4, and the like.

In particular, the mixed gas mixed in the mixing furnace (2) is secondary combustion by the heater (3h) provided in the combustion furnace (3) while passing through the upper portion from the lower portion of the combustion furnace (3). In this process, harmful gas components generated after pyrolysis of waste are removed.

However, since the conventional pyrolysis treatment apparatus uses a general electric heater 93h as a heating means in the combustion furnace 3, it is common to treat the mixed gas at about 1000 ° C, so that waste generated by pyrolysis Among the harmful gases, substances that need to be burned at high temperatures, such as PFC, cannot be treated, and have a problem in that the capacity for treating the mixed gas introduced from the mixing furnace at a time is limited.

Therefore, the present invention has been proposed to solve the above-described problems, and easy to handle harmful gas components that need to be treated at a high temperature, or harmful gases that are not easy to be treated by a general treatment method. It is an object of the present invention to provide a plasma apparatus for treating harmful gases.

In addition, another object of the present invention is to provide a plasma apparatus for treating harmful gases that can process a large amount of mixed gas at once by improving the structure inside the plasma apparatus to widen the surface in contact with the mixed gas.

In order to achieve the above object, the present invention is provided with an inlet communicated with the mixed gas inlet path therein, the body is formed in the treatment space of the mixed gas therein; A cathode provided horizontally in the processing space inside the main body; An anode formed on an inner wall of the processing space proximate the cathode; And a communication unit formed at one end of the processing space and serving as a passage for transferring the plasma-treated gas component toward the cooling apparatus.

The inlet is formed to be inclined at a predetermined angle in the center of the processing space, the first whirlwind phenomenon occurs when the mixed gas inlet, it is preferable that three are provided at equal intervals.

The inner wall constituting the treatment space is formed stepped so that vortices are generated in the introduced mixed gas so that a secondary whirlwind phenomenon occurs.

The cathode is made to be horizontal to the longitudinal direction of the processing space, it is made possible to move a predetermined distance with respect to the longitudinal direction of the processing space.

Between the outer wall of the main body and the inner wall constituting the processing space is provided with a magnetic body for inducing deflection of the arc due to plasma generation, the magnetic body is formed to surround the inner wall constituting the processing space, six radially arranged at equal intervals do.

In order to lower the temperature of the mixed gas combusted in the plasma apparatus, a rear end of the plasma apparatus may include a cooling tank in which water or a refrigerant is accommodated, and a mixed gas combusted in the plasma apparatus while water or refrigerant drawn out of the cooling tank is circulated. It is provided with a cooling device including a temperature reduction chamber for lowering the temperature of the water, and a circulation pump for circulating water or refrigerant contained in the cooling tank.

The thermal chamber is a thermal chamber case forming its appearance; A communication chamber formed in the thermosensitive chamber case along a length direction thereof and communicating with a processing space of the plasma apparatus, into which gas components processed in the processing space are introduced; An injection pipe provided on an inner wall constituting the communication chamber to spray cooling water at a predetermined angle toward the communication chamber; And an exhaust port serving as a passage for discharging the cooled gas components to the outside while passing through the communication chamber.

Plasma apparatus for treating harmful gas according to the present invention is applicable to pyrolysis processing apparatus, food processing apparatus, gas scrubber (gas scrubber), radioactive substance processing apparatus, special gas processing apparatus for treating infectious waste generated in hospital, The embodiment will be described taking the example applied to the pyrolysis treatment apparatus.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 2 to 6B.

FIG. 2 is a schematic view showing a soft decomposition treatment apparatus according to the present invention, FIG. 3 is a cross-sectional view showing the internal structure of a plasma apparatus which is a main portion of the pyrolysis treatment apparatus shown in FIG. 2, and FIG. It is sectional drawing along the AA line, and FIG. 5 is sectional drawing along the BB line of FIG.

As shown in the figure, in the plasma apparatus 300 for the noxious gas treatment according to the present invention, the plasma apparatus 300 is provided with an inlet 320 communicating with the mixed gas inlet path 400 therein. A main body 310 having a mixed gas treatment space (hereinafter referred to as a “processing space”) 330 formed therein, a cathode 340 provided horizontally in the longitudinal direction of the processing space 330 inside the body 310, An anode 350 formed on an inner wall forming the processing space 330 adjacent to the cathode 340, and a passage for transferring a plasma-treated gas component toward the cooling device at one end of the inner wall forming the processing space 330. Communication unit 380 to be, and a power supply (not shown) for applying a voltage to the cathode 340.

As shown in Fig. 2, the plasma apparatus 300 according to the present invention is located between the pyrolysis furnace 200 and the cooling apparatus of the pyrolysis processing apparatus 100.

That is, the pyrolysis processing apparatus 100 forms the main body case 110 having a predetermined space therein; A pyrolysis furnace (200) provided at one side of an inner wall of the main body case (110) to thermally decompose the solid waste in a sparse state of the air into a solid residue and a gas component; An air inlet part 250 provided to penetrate through one side of the pyrolysis furnace 200 to become a path for introducing outside air into the pyrolysis furnace 200; Combustion of the mixed gas formed by mixing the air introduced through the air inlet 250 and the gas components generated from the waste pyrolyzed in the pyrolysis furnace 200, the plasma generating device having a mixed gas of more than 3000 ℃ A plasma apparatus 300 for combustion treatment at a high temperature; A mixed gas inlet path 400 that is a path through which the mixed gas is transferred from the pyrolysis furnace 200 to the plasma apparatus 300; A cooling device for cooling the gas incinerated by the plasma apparatus 300 to an atmospheric temperature; And a discharge device for discharging the gas reduced to ambient temperature from the cooling device to the outside.

The pyrolysis furnace 200, the pyrolysis of the waste in the interior, the hollow inner container 201 made of a cylindrical shape with an open top, the solid residues generated after the thermal decomposition on the bottom of the inner container 201 The inner container 201 is formed to surround the outer side of the plurality of receiving grooves 204 and the inner container 201 and is provided with a plurality of heaters 210 near the inner wall close to the inner container 201. The outer container 202 for heating the inside, the support portion 206 is installed on the bottom surface of the main body case 110, the lower end of the outer container 202 is coupled and supported on the upper surface, and the inner container 201 and Located at the top of the outer container 202 includes a cover 220 for the pyrolysis to open and close the inner container 201 and the upper portion of the outer container 202.

In addition, the outer container 202 is provided with a constant temperature holding chamber 205 for reducing the loss of the internal temperature of the inner container 201, the constant temperature holding chamber 205 is the bottom surface of the inner container 201 And a space between the bottom surface of the outer container 202.

The inner container 201 is preferably made of a heat resistant and fire resistant material.

The size of the receiving groove 204 is preferably smaller than the size of the waste state before the initial state, that is, pyrolysis.

Light gaseous components among the residues of the pyrolyzed waste inside the container 201 float above the container 201, and solid residues such as heavy ashes are formed on the bottom of the container 201. Accumulate in the groove 204.

If solid residues are not accommodated in the receiving groove 204, the solid residues are suspended in the inner container 201 to deprive the heat of the inner container 201 and thus the inside of the inner container 201. The temperature is lowered. Therefore, in order to make the internal temperature of the inner container 201 into a temperature range suitable for pyrolysis, more power must be supplied than in an initial state, that is, when there are no solid residues. That is, an air layer having almost no foreign matter is formed between the bottom of the inner container 201 and the waste, and this air layer makes it possible to efficiently maintain the temperature inside the inner container 201.

In the present embodiment, after the thermal decomposition in the inner container 201, solid residues are accommodated in the receiving groove 204 in the inner container 201, so that the solid residues are not suspended. 201) it is possible to maintain the temperature inside the inner container 201 as set rather than flow inside.

The height of the constant temperature holding chamber 205 is preferably made of 150mm or more.

Since the inner container 201 and the outer container 202 are repeatedly heated and cooled to a high temperature, the inner container 201 and the outer container 202 are preferably spaced apart from the inner wall of the main body case 110 by a predetermined interval. Thus, the inner container 201 and the outer container 202 are spaced apart from the bottom of the main body case 110 via a predetermined support 206. That is, the lower end of the support 206 is coupled to the bottom surface of the body case 110, the lower end of the outer container 202 is coupled to the upper portion, the outer container 202 and the container 201 is It is spaced apart from the bottom of the main body case 110.

A plurality of heaters 210 are provided near the inner wall of the outer container 202, and the heaters 210 are disposed along the inner wall of the outer container 202. That is, while the outer wall of the inner container 201 is heated, the constant temperature holding chamber 205 is also heated to maintain the inner temperature of the inner container 201 at an appropriate temperature.

An upper portion of the inner container 201 and the outer container 202 is provided with a pyrolysis furnace cover 220 that closes the upper portion of the inner container 201 and the outer container 202.

The pyrolysis furnace cover 220 is installed to be tightly attached to the upper end of the inner container 201 to prevent the gas and the like from leaking out during the thermal decomposition of the waste. In addition, the pyrolysis furnace cover 220 preferably has a substantially circular cross section corresponding to the cross-sectional shape of the inner container 201, and has a larger cross section than that of the inner container 201.

In order to open and close the cover 220 by the pyrolysis, a cover opening and closing device 203 which is vertically moved along the outer wall of the outer container 202 may be provided.

The cover opening and closing device 203 is generally called a lifter, and is preferably installed vertically downward from the cover 220 by the pyrolysis. When the cover opening and closing device 203 is moved upward, the pyrolysis is performed. The cover 220 is opened by the pyrolysis due to interference with one lower end of the furnace cover 220, and the cover 220 is closed by the pyrolysis in the opposite operation.

When the gaseous components of the residues of the pyrolyzed wastes in the inner container 201 are located near the upper portion of the inner container 201, they must be transferred to the plasma apparatus 300 for removing harmful gaseous components of the gaseous components. do. To this end, an air inlet (not shown) is formed to penetrate from the upper outer wall to the inner wall of the inner container 201, and an air inlet 250 connected to the air inlet and communicating with the outside air is provided.

The air inlet 250 is a conventional pipe form, consisting of 3 to 7 φ (pi) (unit mm) pipe, one end is in contact with the outside air and the other end is in contact with the air inlet. The air introduced through the air inlet 250 is mixed with a gas component generated after the waste is pyrolyzed to form a mixed gas, and the mixed gas is mixed with the plasma apparatus due to the inflow pressure of air introduced from the outside. 300).

The temperature of the air inlet 250 is maintained at about 50 ℃.

In addition, in preparation for a reverse flow from the inner container 201 to the air inlet 250, a temperature sensor is installed in the air inlet 250, and when a temperature of about 100 ° C. is sensed, all operations are stopped. do.

A mixed gas inflow path 400 serving as a transfer path of the mixed gas is provided between the inner container 201 and the plasma apparatus 300.

The mixed gas inflow path 400 is tubular, one end of which communicates with the inner container 201, and the other end thereof communicates with the plasma apparatus 300.

As shown in FIG. 3, the cathode 340 and the anode 350 are spaced apart from each other by a predetermined interval (hereinafter, referred to as a 'gap'), and a space between the cathode 340 and the anode 350 is applied when a high voltage is applied. Is discharged at the ionization of the reaction gas. The various functional ions thus formed are broken into a combination of gases by breaking the binding of harmful gases such as dioxins and PFCs mixed in the mixed gas. In particular, since harmful gases reacted at high temperatures such as PFC react only at a surface temperature of 3000 ° C. and an internal temperature of 10000 ° C. or higher, plasma is treated.

The inlet 320 of the gas components pyrolyzed in the pyrolysis furnace 200 is integrally formed with the plasma apparatus 300.

In addition, since the gap between the cathode 340 and the anode 350 is a very important factor among the conditions of plasma generation, the cathode 340 is provided to be movable a predetermined distance in the longitudinal direction of the processing space 330. This allows the user to arbitrarily adjust the optimum plasma generation conditions. That is, since the arc is generated at the end of the cathode 340 and the cathode 340 is damaged due to frequent plasma generation, the gap between the cathode 340 and the anode 350 is changed, so that the cathode 340 is removed. Move and adjust the gap.

The gap between the cathode 340 and the anode 350 is adjustable by a current control method and a manual setting method.

First, the current control method is a method of controlling the gap by adjusting the amount of current applied to the plasma apparatus 300. That is, when the gap between the cathode 340 and the anode 350 is far away, the amount of current is reduced to narrow the gap, and in the opposite case, to widen the gap. At this time, the amount of current is output as data from the power supply, and the output data is recognized and controlled by a servo motor or stepping motor.

Second, the manual setting method is a method in which the gap is regularly narrowed after operating the plasma apparatus 300 for a predetermined time. That is, after the plasma apparatus 300 is operated for a predetermined time, the cathode 340 is rotated and moved to close the gap. Alternatively, the user moves the cathode 340 forward or backward while watching the amount of current displayed by the power supply unit. In this case, the outer circumferential surface of the cathode 340 is screwed to set a forward or backward amount according to the rotation amount.

The inlet 320 allows the mixed gas to flow into the processing space 330 from the mixed gas inlet path 400, and is inclined with respect to the center of the processing space 330. That is, as shown in FIG. 4, the processing space 330 has a substantially circular cross section when viewed from the communicating portion 380 direction, and the inlet 320 of the processing space 330 has a circular shape. It is formed inclined by α at the center. Therefore, the mixed gas in which the gas component of the waste treated in the pyrolysis furnace 200 and the outside air introduced from the air inlet 250 are mixed through the mixed gas inlet 400 through the inlet 320. When introduced into the processing space 330, it is introduced while causing a tornado phenomenon (hereinafter, referred to as a "primary tornado phenomenon"). The primary tornado is smoothly entering the mixed gas into the processing space 330 and increasing the area and time of contact with the inner wall of the main body 310 forming the processing space 330 to process the mixed gas. Allow sufficient time for That is, the flow of the mixed gas is introduced into the processing space 330 while rotating as shown in FIG. 4 so as to enter the interior of the plasma, so that it can be processed at a higher temperature.

In addition, the inlet 320 has about three toward the processing space 330 to allow more mixed gas to flow into the processing space 330 at once.

The inner wall constituting the processing space 330 is formed stepped (hereinafter referred to as a 'step portion 360' (see Fig. 3)). This causes the mixed gas introduced into the processing space 330 by the primary tornado to cause the tornado once more (hereinafter, referred to as 'secondary tornado'), and a large amount of mixed gas is plasma at a time as in the first tornado. To be handled by

In addition, as shown in FIG. 5, a magnetic body 370 may be provided between the inner wall of the processing space 330 and the outer wall of the main body 310. The magnetic body 370 is preferably provided with about six in the form of surrounding the processing space 330, and the magnetic force to deflect the direction of the arc in various directions when the plasma is generated. This is because when the plasma is generated, the arc tends to be deflected in one direction, and thus only one portion of the inner walls constituting the processing space 330 (see FIG. 3) is easily damaged, thereby greatly shortening the lifespan of the plasma apparatus 300. Can be. In order to prevent this, six magnetic bodies 370 are disposed at equal intervals, thereby dispersing damaged portions of inner walls, thereby extending the life of the plasma apparatus 300.

In general, since the combustion in the plasma apparatus 300 is performed at a temperature higher than the pyrolysis temperature in the pyrolysis furnace 200, the temperature of the burned mixed gas is also discharged at a considerably high state. Therefore, the mixed gas passed through the plasma apparatus 300 needs to be cooled to a temperature similar to the outside air before being discharged to the outside air.

Therefore, a cooling device for lowering the temperature of the mixed gas combusted by the plasma device 300 is provided at the rear end of the plasma device 300.

In the present embodiment, the cooling device is water-cooled, the cooling tank 700, the water or refrigerant is accommodated, the water or the refrigerant drawn out of the cooling tank 700 is circulated in the combustion of the plasma apparatus 300 It consists of a configuration including a temperature reduction chamber 500 for lowering the temperature of the gas, and a circulation pump 800 for circulating the water or the refrigerant contained in the cooling tank 700.

The mixed gas passed through the cooling device is discharged to the outside air through a discharge device, and the discharge device includes an exhaust pipe (not shown) and an exhaust blower 600.

In addition, the bottom of the main body case 110 is provided with a wheel 120 for movement.

After passing through the temperature-sensitive chamber 500, a neutralizing device (not shown) may be further provided to change the acidic mixed gas into alkaline.

In addition, the filter unit for filtering large particles of the particles of the cooled water vapor through the temperature-sensitive room 500 and the neutralizing device may be further provided.

In addition, a catalytic device for finally removing the remaining or newly converted harmful gas while passing through the plasma device 300, the cooling device, and the filter device may be further provided.

6A and 6B are front sectional and side sectional views, respectively, showing front and side views of the thermal sensing chamber, which is a main part of the pyrolysis processing apparatus shown in FIG. 2, and with reference to FIGS. 6A and 6B, the configuration of the thermal sensing chamber 500 will be described. It explains in detail.

The thermosensitive chamber 500 is in communication with the cylindrical thermosensitive chamber case 510, the processing space 330 of the plasma apparatus 300, the communication chamber 520 into which the treated gas components are introduced, and the communication chamber ( It is provided on the inner wall 520, the injection pipe 550 for spraying the coolant at a predetermined angle toward the communication chamber 520, and through the communication chamber 520 to discharge the cooled gas components to the outside An exhaust port 530 serving as a passage is included.

The injection pipe 550 is inserted into and coupled to penetrate from one side wall of the thermosensitive chamber case 510 to the other side wall, and has a pipe shape positioned to cross the communication chamber 520, from the inner surface to the outer surface. A plurality of penetrating water spray holes are formed.

The water injection hole is evenly distributed on the outer circumferential surface of the injection pipe 550, whereby water is injected into the communication chamber 520 at a predetermined angle, preferably about 90 degrees up and down. Therefore, the hot gas components passing through the section where water is injected are rapidly cooled and the cooled gas components are moved toward the outlet 530.

That is, the inner wall of the communication chamber 520 is formed by the injection of water to the first blocking wall, the gas components introduced into the communication chamber 520 is mixed with water to lower the temperature of the gas components similar to the outside air After cooling to a temperature, it is transferred to the outside through the outlet 530.

The rear side of the outlet 530 is provided with a blower 600 to suck the cooled gas components to discharge to the outside.

Referring to the operational sequence of the present invention made of the configuration as described above, that is, a series of processes for treating waste as follows.

First, the cover 220 is opened by pyrolysis to inject waste into the container 201, and then the cover 220 is closed to completely block the inside of the pyrolysis furnace 200 from outside air. Then, power is supplied to the heaters 210 to heat the inside of the pyrolysis furnace 200, and after heating to a predetermined temperature or more, pyrolysis of waste occurs in the inner container 201. When the pyrolysis of the waste is completed, the gas component stays on the upper portion of the inner container 201, and the solid residue is accommodated in the receiving groove 204 to terminate the pyrolysis of the waste primarily.

Next, outside air is received through the air inlet 250, and gas components and outside air after the waste is pyrolyzed are mixed, and the mixed gas is sent to the plasma apparatus 300 through the mixed gas inlet 400. Lose. The plasma apparatus 300 generates a plasma to burn the mixed gas to remove harmful components such as PFC, and then, sends the cooling apparatus to a temperature similar to that of the outside air to lower the temperature of the mixed gas to be discharged to the outside air and discharges the same through the discharge apparatus. .

Between the cooling process due to the cooling device and the discharge process due to the discharge device, a neutralization process for converting acid to alkalinity, a filtering process for filtering large particles, and a catalyst may be subjected to another harmful gas removal process. .

According to the present invention having the above configuration, a large amount of mixed gas may be introduced into the plasma apparatus 300 to remove a large amount of harmful gas at once.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those of ordinary skill in Esau.

Plasma apparatus for treating harmful gas of the present invention as described above is easy to process harmful gas components that need to be treated at high temperature, or harmful gas that is not easy to be treated by a general treatment method, and mixes a large amount at a time. Another object of the present invention is to provide a plasma apparatus for treating harmful gas, which can be treated by introducing gas therein.

Claims (9)

delete A main body having an inlet communicating with the mixed gas inflow path therein and having a processing space for the mixed gas therein; A cathode provided horizontally in the processing space inside the main body; An anode formed on an inner wall of the processing space proximate the cathode; And It is formed in one end of the processing space, and includes a communication portion which is a passage for transferring the plasma-treated gas component toward the cooling device, The inlet is formed to be inclined at a predetermined angle with respect to the center of the processing space, so that the first tornal phenomenon occurs when the mixed gas inflow, The inner wall forming the treatment space is formed stepped so that vortices are generated in the introduced mixed gas so that a secondary whirlwind phenomenon occurs. Plasma Apparatus for Hazardous Gas Treatment. The method of claim 2, Three inlets are formed at equal intervals Plasma Apparatus for Hazardous Gas Treatment. delete The method of claim 2, The cathode is made horizontal to the longitudinal direction of the processing space, It is made possible to move a predetermined distance with respect to the longitudinal direction of the processing space, Plasma Apparatus for Hazardous Gas Treatment. The method of claim 2, A magnetic material is provided between the outer wall of the main body and the inner wall forming the processing space to induce an arc deflection due to plasma generation. Plasma Apparatus for Hazardous Gas Treatment. The method of claim 2, The magnetic body is formed to surround the inner wall constituting the processing space, and six are arranged at radial equal intervals Plasma Apparatus for Hazardous Gas Treatment. The method of claim 2, In order to lower the temperature of the mixed gas combusted in the plasma apparatus, a cooling tank in which water or a coolant is accommodated, and a mixed gas combusted in the plasma apparatus while the water or the coolant drawn from the cooling tank are circulated in the rear stage of the plasma apparatus. It is provided with a cooling device including a temperature reduction chamber for lowering the temperature of the water, and a circulation pump for circulating water or refrigerant contained in the cooling tank. Plasma Apparatus for Hazardous Gas Treatment. The method of claim 8, The thermal chamber, A thermal chamber case forming its appearance; A communication chamber formed in the thermosensitive chamber case along a length direction thereof and communicating with a processing space of the plasma apparatus, into which gas components processed in the processing space are introduced; An injection pipe provided on an inner wall constituting the communication chamber to spray cooling water at a predetermined angle toward the communication chamber; And An exhaust port serving as a passage for discharging the cooled gas components to the outside while passing through the communication chamber Plasma device for processing harmful gas comprising a.

Images