Exhaust gas treatment apparatus

Abstract

The present invention provides an exhaust gas treatment apparatus. The present invention comprises: a wet stirring chamber which is a tubular member filled with cleaning water so as to maintain a set water level, and which has, at one side thereof, an inlet in through which exhaust gas flows, and sprays the cleaning water toward the influent exhaust gas so as to generate a mixed fluid, and then drives and rotates a plurality of propellers so as to forcibly transport the mixed fluid to one side thereof while stirring same with the cleaning water; a wet tank which receives mixed water from the wet stirring chamber and discharges same into water, and which is filled with the cleaning water at a set water level; a wet filter provided in the water of the wet tank so as to filter the mixed water, and a spray nozzle that receives the cleaning water treated through the wet filter and sprays same at a high pressure at one side of the wet stirring chamber; and an air filter provided above the water surface of the wet tank so as to filter a gas mixture, and a discharge pipe that discharges and guides, to the atmosphere, purified air that has passed through the air filter. The objective of the present invention is to provide the exhaust gas treatment apparatus that enables the continuous treatment of exhaust gas while having a simple structure, has high application flexibility with respect to installation space or object of installation, and enables increased operating efficiency and economic feasibility.

Description

exhaust gas treatment device

[0001] The present invention relates to an exhaust gas treatment device, and more particularly, to an exhaust gas treatment device that can effectively remove harmful substances and fine dust generated from various pollutant facilities and industrial sites, including transportation vehicles such as vehicles and ships, thereby improving air quality.

[0002] In general, exhaust gases generated after combustion reactions in incinerators, factories, power plants, boilers, etc. contain a large amount of toxic substances that have a negative impact on the environment and human body, such as nitrogen oxides (NOx), particulate matter (PM), and incomplete combustion compounds such as soot, dioxin, and carbon monoxide due to incomplete combustion. In order to remove these toxic harmful substances that cause environmental pollution, the exhaust gases are not discharged directly to the outside, but are filtered out through exhaust gas post-treatment devices.

[0003] Likewise, in the case of diesel internal combustion engine vehicles and ships, exhaust gas post-treatment technologies such as physical filtration and chemical reaction treatment are applied to remove and discharge smoke containing a large amount of harmful substances during operation.

[0004] Meanwhile, as exhaust gas aftertreatment technologies, there are widely used methods such as a method using a catalyst, a combustion method using LPG, a wet scrubber treatment method using a thin stream of water to induce water adsorption, and a dust collection method using an electrostatic precipitator. However, in the case of the above-mentioned catalytic method, the maintenance cost is uneconomical due to the increased replacement cost due to the limited lifespan of the catalyst, and the re-incineration method using LPG is not only uneconomical due to excessive fuel use, but there is still a concern about the generation of harmful substances due to incomplete combustion during the re-burning process. The above-mentioned wet exhaust gas scrubber treatment method utilizes the property of adsorbing the exhaust gas into water during the process of passing it through a stream of water, and has the disadvantage of low treatment efficiency in the case of non-polar exhaust gases, and the electrostatic precipitator has the disadvantage of limited treatment efficiency.

[0005] In addition, exhaust gas treatment devices using arc plasma are being used as an alternative, but these plasma-based exhaust gas treatment devices have the disadvantage of having limited plasma discharge space size, requiring frequent replacement of consumable electrodes to form and maintain arc plasma, and low economic feasibility due to high electric energy consumption.

[0006] In the prior art, an 'exhaust gas treatment device using high-energy thermal plasma and a high-temperature chamber' has been proposed through Korean Patent No. 10-1961947, and its main features include generating high-energy thermal plasma using a direct current power source to decompose the inflowing exhaust gas (separate electrons, protons, and nuclei) and process it into a harmless gaseous state, and secondarily maintaining the high temperature in a high-temperature chamber for a long time before discharge, thereby preventing recombination during the discharge process and enabling water-soluble gas treatment and temperature cooling.

[0007] However, the exhaust gas treatment device using high-energy thermal plasma and a high-temperature chamber according to the above-mentioned conventional technology has limitations in increasing the efficiency of treating exhaust gas due to the limitation in the size of the plasma discharge, and also has low economic feasibility due to the high cost required for maintenance due to frequent replacement of consumable electrodes and high electric energy usage.

[0008] Meanwhile, in the case of facilities for chemical processing or research institutes or hospitals that handle pathogens such as viruses or bacteria, there is a possibility that hazardous substances may remain in the indoor air, so air purification is being done through air purifiers, clean rooms, or air conditioning facilities. In other words, most conventional indoor air purification methods are filtration methods that utilize high-efficiency filter materials, so not only is the removal effect of polluted air low, but there is also the problem of secondary contamination by the filter material. In addition, there was the problem that it was difficult to maintain economically because the expensive filter material had to be replaced periodically.

[0009] Another conventional technology is an exhaust gas treatment technology using microbubbles, which was proposed as a 'denitrification facility using microbubbles and an exhaust gas treatment system having the same' through Korean Patent No. 10-2080270, and claim 2 of the registration includes a 'denitrification reactor having an internal space separated into a first space and a second space that are connected to each other and storing an aqueous solution for denitrification reaction, and discharging nitrogen gas generated by a reaction between nitrogen oxides and the aqueous solution for denitrification reaction, and having an atomizing unit installed in the second space and connected to the first space through a nozzle inlet; And an exhaust device for discharging gas from the second space, wherein the aqueous solution for denitrification reaction is a hydrogen sulfide aqueous solution, and as the gas is discharged from the second space by the exhaust device, a negative pressure is formed in the second space, so that the water level of the second space increases and the water level of the first space decreases so that the nozzle inlet is opened, so that gas containing nitrogen oxides flowing into the first space forms microbubbles by the atomizing unit in the second space and is injected into the aqueous solution for denitrification reaction, and a denitrification reaction for nitrogen monoxide as shown in the following reaction formula 1 occurs in the denitrification reactor.

[0010] [Reaction Formula 1]

[0011] NO + H2S →1 / 2N2 + H2O + S' is disclosed.

[0012] In addition, a ‘high-concentration flue gas desulfurization facility using microbubbles’ was proposed in Korean Patent No. 10-2008364.

[0013] However, the microbubbles used in the purification treatment technology according to these conventional technologies can improve the purification treatment performance as the particles are finer, but since they are a spray nozzle method that sprays water or steam into the air using an atomizer, there is a limit to reducing the particles of water droplets, and as a result, there is a problem that the exhaust gas treatment performance is reduced.

[0014] Therefore, most of the exhaust gas treatment technologies based on conventional technology have low economic feasibility due to expensive equipment and high maintenance costs due to frequent replacement of consumables, so it is urgent to find countermeasures to address this.

[0015] (Prior art literature)

[0016] (Patent Document)

[0017] (Patent Document 1) Registered Patent No. 10-2059380 (December 19, 2019)

[0018] (Patent Document 2) Patent Publication No. 10-2019-0042081 (April 23, 2019)

[0019] (Patent Document 3) Registered Patent No. 10-0733331 (June 22, 2007)

[0020] (Patent Document 4) Registered Patent No. 10-1770716 (August 17, 2017)

[0021] (Patent Document 5) Registered Patent No. 10-1679403 (November 18, 2016)

[0022] (Patent Document 6) Publication No. 10-2014-0093202 (July 25, 2014)

[0023] The present invention was created to solve the problems of the prior art as described above, and the purpose of the present invention is to provide an exhaust gas treatment device that can efficiently purify exhaust gas containing a large amount of harmful substances generated from waste incinerators or various industrial sites or exhaust gas generated from transportation means such as vehicles or ships using internal combustion engines with a simple structure.

[0024] Another object of the present invention is to provide an exhaust gas treatment device that is not only easily applicable to various types of exhaust gas generation sources due to its simple structure and high degree of freedom in design with respect to size and shape, but is also not restricted by the installation location.

[0025] Another object of the present invention is to provide an exhaust gas treatment device that can continuously remove various pollutants contained in polluted air to purify it, while minimizing the use of consumable dry filters, thereby increasing the convenience and economy of maintenance.

[0026] Meanwhile, the purposes of the present invention are not limited to the purposes mentioned above, and other purposes not mentioned can be clearly understood by those skilled in the art from the description below.

[0027] In order to achieve the above object, a preferred embodiment of the present invention provides an exhaust gas treatment device, comprising: a tubular member filled with cleaning water to maintain a set level, the tubular member having an inlet formed on one side through which exhaust gas flows in, a wet stirring chamber that sprays cleaning water toward the flowing exhaust gas to create a mixed fluid, and then pressurizes and transfers the mixed fluid to one side by driving and rotating a plurality of propellers; a wet tank that receives the mixed water from the wet stirring chamber and is equipped to discharge it underwater, the wet tank being filled with cleaning water at a set level therein; a wet filter installed underwater in the wet tank to filter the mixed water, and an injection nozzle that receives the treated cleaning water passing through the wet filter and sprays it at high pressure to one side of the wet stirring chamber; an air filter installed above the water surface of the wet tank to filter the mixed gas, and an exhaust pipe that guides the purified air passing through the air filter to be discharged into the atmosphere.

[0028] As a preferred feature of the present invention, the wet stirring chamber comprises: an inlet pipe having a length of a tubular member, the upper side of which is provided with exhaust gas; a main pipe having the other end of the inlet pipe connected to the upper side, a drive shaft rotatably installed at the center thereof, and filled with 10 to 90% of cleaning water therein to provide a space for exhaust gas introduced from the inlet pipe to remain; and a connecting pipe connected to the other end of the main pipe to provide a pipe through which mixed water is pressure-supplied to the wet tank.

[0029] As another preferred feature of the present invention, the main pipe is provided with a flange gasket, which is a watertight element for preventing the washing water from leaking out to the outside, and a driving motor is provided on one side of the flange gasket to transmit the driving force by connecting the driving shaft to the shaft coupling; and on the other side of the main pipe, which faces the flange gasket and the plurality of propellers, a through-hole plate having a plurality of through-holes formed therein for guiding the washing water to pass therethrough and have a uniform flow is provided.

[0030] As another desirable feature of the present invention, the inlet pipe is provided with a heater coil that receives power on one side thereof and heats the exhaust gas introduced therein to a high temperature and combusts it.

[0031] As another preferred feature of the present invention, the wet tank is provided with a discharge port in which the inside is filled with cleaning water and the mixed water passing through the wet stirring chamber is discharged as bubbles underwater based on the water surface, a drain cock is provided on one side of the lower portion for selectively discharging the cleaning water to the outside, and a plug is provided on one side of the upper portion for introducing the cleaning water.

[0032] As another preferred feature of the present invention, a water pump is installed on one side of the exterior of the wet tank, which is connected to the wet filter and pumps the filtered treated water through a pumping action through a nozzle pipe connected to the wet stirring chamber and having a spray nozzle connected to the end thereof.

[0033] As another preferred feature of the present invention, an air motor is installed between the air filter and the exhaust pipe to apply a blowing force to suck in purified air passing through the air filter and discharge it through the exhaust pipe.

[0034] The exhaust gas treatment device according to the present invention is expected to have the effect of improving the economic efficiency of operation and facilitating maintenance by continuously purifying harmful components from polluted air containing harmful substances through a simple wet treatment method.

[0035] In addition, the present invention has a simple structure and thus has a high degree of freedom in design for application space, and thus has the advantage of a high degree of freedom in application for sources of pollution.

[0036] In addition, since the exhaust gas treatment device according to the present invention can remove and purify various pollutants contained in the air, it can be economically and easily applied to various industrial sites and internal combustion engine vehicles, including waste incinerators that generate polluted air, and thus is expected to have a very high potential for industrial use.

[0037] The features and advantages of the present invention will become more apparent in the following detailed description based on the accompanying drawings. The terms and words used in this specification and claims should not be interpreted in their conventional or dictionary sense. Rather, they should be interpreted in their meanings and concepts consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concepts of terms to best explain his or her invention.

[0038] Figure 1 is a drawing showing the configuration of an exhaust gas treatment device according to an embodiment of the present invention.

[0039] Figure 2 is a drawing showing an excerpt of a propeller from an exhaust gas treatment device according to the present invention.

[0040] Figure 3 is a drawing showing a separator in an exhaust gas treatment device according to the present invention.

[0041] Hereinafter, the configuration and operation of embodiments of the present invention will be described in detail with reference to the attached drawings. However, it should be understood that the present invention is not limited to a specific disclosed form, and all modifications, equivalents, and alternatives included within the spirit and technical scope of the present invention are included.

[0042] In this application, terms such as "include" or "have" are intended to specify the presence of a feature, step, operation, component, part, or combination thereof described in the specification, and should be understood as not excluding in advance the possibility of the presence or addition of one or more other features, steps, operations, components, parts, or combinations thereof. In other words, throughout the specification, when it is said that a part "includes" a certain component, this does not mean that other components are excluded, but rather that other components may be further included, unless specifically stated otherwise.

[0043] Additionally, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning within the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0044] Here, repetitive descriptions, well-known features that may unnecessarily obscure the gist of the present invention, and detailed descriptions of configurations are omitted to avoid obscuring the gist of the present invention. The embodiments of the present invention are provided to more fully explain the present invention to those of average skill in the art. Accordingly, the shapes and sizes of elements in the drawings may be exaggerated for clarity.

[0045]

[0046] FIG. 1 is a drawing showing the configuration of an exhaust gas treatment device according to an embodiment of the present invention, FIG. 2 is a drawing showing an excerpt of a propeller in an exhaust gas treatment device according to the present invention, and FIG. 3 is a drawing showing a separator in an exhaust gas treatment device according to the present invention.

[0047] The configuration of the exhaust gas treatment device according to the present invention will be described with reference to the above drawings.

[0048] The present invention is largely composed of a wet stirring chamber in which exhaust gas and cleaning water are mixed to produce a mixed water, a wet tank connected to the wet stirring chamber to receive the mixed water, filtering harmful components contained in the mixed water with a water filter and an air filter to recycle it as cleaning water, and discharging purified air (gas) to the outside, an injection nozzle that receives the cleaning water filtered in the wet tank and resupplies it to the wet stirring chamber, and an exhaust pipe that discharges purified air (gas) treated in the wet tank to the outside.

[0049]

[0050] The wet mixing chamber (10) is provided as a pipe-type member filled with a certain amount of cleaning water inside, and an inlet for introducing exhaust gas is formed on one side of the upper portion, and an injection nozzle (23n) is arranged to inject cleaning water at high pressure toward the exhaust gas introduced through the inlet to generate a mixed fluid through primary mixing, and a plurality of propellers are driven and rotated to mix the mixed fluid and cleaning water to generate a mixed water, and this mixed water has a flow that moves toward the connecting pipe (11-2) side while being stirred by the rotation of the propeller.

[0051] This wet stirring chamber (10) is largely composed of an inlet pipe (11-1), a main pipe (11), and a connection pipe (11-2), and inside, cleaning water consisting of a chemical fluid for removing harmful components of element water, water, or exhaust gas is filled up to a set level.

[0052] The above inlet pipe (11-1) is a tubular member that is connected to an exhaust pipe of an industrial site that generates exhaust gas or to an exhaust pipe of an internal combustion engine to receive exhaust gas. It can be provided in various shapes and sizes depending on the source that generates exhaust gas, and this can be implemented using a known technology, so a detailed description is omitted.

[0053] Meanwhile, the inlet pipe (11-1) may be additionally installed with a heater coil (30) that receives power from the outside and heats it to a high temperature. This heater coil (30) is an element for burning harmful components contained in the exhaust gas flowing in from the outside at a high temperature, and is intended to completely burn harmful components contained in the passing exhaust gas by receiving power and heating it to a set temperature.

[0054] This heater coil (30) is configured to be installed inside the inlet pipe (11-1) in the present invention, and a combustion ash collection tank (not shown) is provided at the lower side of the inlet pipe (11-1) in which the heater coil is installed to discharge combustion ash generated during the combustion process to the outside, and it is preferable that the end of the inlet pipe (11-1) through which the combustion ash is discharged is provided with a selectively openable plug (not shown) by screwing or fitting.

[0055] By this configuration, the combustion ash generated when the exhaust gas passing through the heater coil (30) is combusted can fall to the lower side of the inlet pipe (11-1) and be collected in a certain amount or discharged to the outside. The discharge port of the inlet pipe (11-1) can be selectively opened and closed by a worker by separating a stopper (not shown) so that the collected combustion ash can fall to a combustion ash collection tank for discharge. This combustion ash discharge structure shows one embodiment, and the present invention is not limited thereto, and may be implemented by various known techniques for manually or automatically discharging combustion ash.

[0056] The above main pipe (11) is a tubular member configured to be connected to the end of the above inlet pipe (11-1) to supply exhaust gas, and a drive shaft (15s) that is connected to a drive motor (15) and rotates by receiving driving force is arranged at the inner center.

[0057] This main pipe (11) is filled with cleaning water to about 10 to 90% of its interior, and the remaining space where the cleaning water is not filled provides a space where the exhaust gas flows in and remains.

[0058] Meanwhile, the main pipe (11) may be provided as a metal pipe or a synthetic resin pipe, but the present invention proposes that it be provided as a metal pipe with excellent heat resistance and chemical resistance.

[0059] In addition, although not shown in the drawing, a water level sensor may be installed within the main pipe (11), and the water level sensor may be configured to detect the water level and supply cleaning water from the outside so that an appropriate water level, i.e., a set value, can be maintained, or to notify the operator through a buzzer sound or screen display so that the operator can recognize it. For example, if the level of cleaning water filled within the main pipe (11) is less than 50% or more than 90%, the mixing efficiency of the exhaust gas and cleaning water decreases.

[0060] The above connecting pipe (11-2) is an element that is connected to the other side of the main pipe (11) and serves as a pipe through which mixed water is sent to the wet filtration tank (20) described later.

[0061] In the wet stirring chamber (10) configured as described above, a flange gasket (12), which is a watertight element to prevent cleaning water from leaking out to the outside, is installed on one side of the main pipe (11), and a driving motor (15) that transmits driving force by being connected to the driving shaft (15s) and shaft coupling (15c) is installed on the outer side of the flange gasket (12).

[0062] In addition, a through-hole plate (14) having a plurality of through holes (14h) formed therein to induce a uniform flow of mixed water is installed on the other side of the main pipe (11) facing the flange gasket (12) and the plurality of propellers (13) therebetween, and the size, shape and number of the plurality of through holes (14h) formed in the through-hole plate (14) may be implemented in various ways.

[0063] In addition, it is preferable to install a propeller to ensure that the mixed water passing through the above-mentioned perforated plate (14) can flow smoothly toward the wet filtration tank (20) described later through the connecting pipe (11-2).

[0064] That is, it is preferable that not only a plurality of propellers (13) be installed between the flange gasket (12) and the perforated plate (14), but also a propeller (13) be installed to generate a flow for the mixed water passing through the perforated plate (14).

[0065] Meanwhile, the wet stirring chamber (10) according to the present invention is provided so that the inside thereof is maintained filled with cleaning water to a set level, and in the present invention, a water level sensor (not shown) is installed on one side of the inside of the wet stirring chamber (10) so as to maintain the set water level. To this end, the wet stirring chamber (10) may be connected to a supplementary tank filled with cleaning water on one side of the outside via a pipe, although not shown in the drawing, and may be configured to selectively supply cleaning water from the supplementary tank by driving a pump. Since this configuration may be implemented using a known technology, a detailed description thereof will be omitted.

[0066]

[0067] The wet filtration tank (20) is provided to receive mixed water from the wet stirring chamber (10) and discharge it underwater. It is an element that serves as a reservoir filled with cleaning water at a set level inside.

[0068] This wet filtration tank (20) is configured to be filled with cleaning water inside, and to have a discharge port (11-3) with multiple holes formed so that mixed water passing through the wet stirring chamber (10) is discharged in bubble form underwater based on the water surface, and to have a drain cock (20b) for selectively discharging cleaning water to the outside on one side of the lower portion, and to have a stopper (20s) for replenishing cleaning water on one side of the upper portion.

[0069] In addition, a water pump (22) that is connected to the wet filter (21) and performs a pumping action is installed on one external side of the wet filtration tank (20), and this water pump (22) is connected to a nozzle pipe (23) connected to the wet stirring chamber (10) and is configured to supply cleaning water at high pressure.

[0070] Meanwhile, the end of the nozzle tube (23) is placed on the exhaust gas inlet side of the wet stirring chamber (10), so that when exhaust gas flows in, cleaning water is sprayed at high pressure.

[0071] In addition, the above wet filter tank (20) is configured such that an air motor (26) is installed between the air filter (24) and the discharge pipe (25), and this air motor (26) is an element that applies a blowing force to suck in purified air (gas) that has passed through the air filter (24) and forcibly exhaust it through the discharge pipe (25).

[0072] Hereinafter, the operation of the exhaust gas treatment device (1) according to the present invention configured as described above will be described.

[0073] First, in the exhaust gas treatment device (1) according to the present invention, exhaust gas is introduced through an inlet pipe (11-1) connected to the discharge line of an exhaust gas generation source, and the exhaust gas flows into the interior of a wet stirring chamber (10) connected to the end of the inlet pipe (11-1).

[0074] At this time, a driving shaft (15s) that rotates in one direction by receiving the driving force of a driving motor (15) is installed inside the wet stirring chamber (10), and a plurality of propellers (13) that generate a one-way vortex flow are installed on this driving shaft (15s). By the rotation of these propellers (13), the exhaust gas in the inlet pipe (11-1) is naturally introduced into the interior of the wet stirring chamber (10).

[0075] Meanwhile, the wet stirring chamber (10) generates a mixed fluid of the cleaning water and the exhaust gas by injecting cleaning water at high pressure into the exhaust gas flowing in through the inlet pipe (11-1), and since the wet stirring chamber (10) is filled with a certain amount of cleaning water and a plurality of propellers (13) are rotating, the mixed fluid is eventually mixed with the cleaning water to generate a mixed water. In other words, the mixed water is mixed with exhaust gas.

[0076] Next, the mixed water containing the above exhaust gas is transferred to the right as shown in Fig. 1 by the driving rotation of a plurality of propellers (13) and passes through a perforated plate (14) having a plurality of through holes (14h) formed therein. The perforated plate (14) generates resistance to the vortex flow of the mixed water to induce re-mixing and, at the same time, allows a uniform amount of the mixed water to pass through, thereby suppressing the occurrence of a pulsation phenomenon within the wet stirring chamber (10).

[0077] Next, the mixed water passing through the above-mentioned perforated plate (14) is guided to the outlet pipe (11-2) by the rotational force of the propeller installed at the end of the drive shaft (15s) and moves into the interior of the wet filter tank (20).

[0078] The mixed water supplied to the above wet filtration tank (20) passes through the wet filter (21) by the pumping action of the water pump (22) and harmful substances are removed, and the cleaning water from which the harmful substances have been removed is sprayed at high pressure into the interior of the wet stirring chamber (10) through the spray nozzle (23n) via the nozzle pipe (23).

[0079] Meanwhile, the wet filtration tank (20) has an air filter (24) installed on the inner upper side where the mixed water is not filled, and this air filter (24) filters out harmful substances contained in the air by the blowing action of the air motor (26). Then, the purified gas that has passed through the air filter (24) and been filtered is discharged into the atmosphere through the discharge pipe (25).

[0080]

[0081] The exhaust gas treatment device according to the present invention of this configuration generates a mixed fluid by spraying the cleaning water into the exhaust gas containing harmful components, and the mixed fluid thus generated is sufficiently mixed using a propeller (13) in a wet stirring chamber (10) filled with the cleaning water, and then the harmful components contained in the fluid and gas are removed through a wet filter (21) and an air filter (24) in a wet filtration tank (20), respectively.

[0082] Finally, the mixed water from which the harmful substances have been removed is recycled as cleaning water and supplied into the wet stirring chamber (10) using a high-pressure spray method, and the purified gas from which the harmful substances have been removed is discharged into the atmosphere.

[0083]

[0084] Meanwhile, the present invention is not limited to the described embodiments. It is possible to use the present invention by changing the application area, and various modifications and variations can be made without departing from the spirit and scope of the present invention, as will be apparent to those skilled in the art. Accordingly, such variations or modifications should be considered within the scope of the claims of the present invention.

[0085]

[0086] (Explanation of symbols)

[0087] 1: Exhaust gas treatment device

[0088] 10: Wet stirring chamber 11: Main pipe 11-1: Inlet pipe

[0089] 11-2: Outlet pipe 11-3: Discharge part 12: Flange gasket

[0090] 12b: Rubber bearing 13: Propeller 14: Perforated plate

[0091] 14h: Through hole 14b: Plate bearing 15: Drive motor

[0092] 15c: Shaft coupling 15s: Drive shaft 20: Wet filter tank

[0093] 20a: Plug 20b: Drain cock 21: Wet filter

[0094] 22: Water pump 23: Supply pipe 23n: Injection nozzle

[0095] 24: Air filter 25: Exhaust pipe 26: Air intake motor

[0096] 30: Heater coil

Claims

1. A tubular member filled with cleaning water to maintain a set level, having an inlet formed on one side through which exhaust gas flows in, and a wet stirring chamber that sprays cleaning water toward the flowing exhaust gas to create a mixed fluid, and then mixes the mixed fluid with the cleaning water and sends it to one side by rotating the mixed fluid with a plurality of propellers; A wet tank provided to receive mixed water from the above wet stirring chamber and discharge it underwater, the inside of which is filled with cleaning water at a set level; A wet filter installed underwater in the above wet tank to filter the mixed water, and a spray nozzle that receives the treated cleaning water passing through the wet filter and sprays it at high pressure to one side of the above wet stirring chamber; An exhaust gas treatment device characterized by comprising: an air filter installed on the surface of the above wet tank to filter a mixed gas; and an exhaust pipe that guides the purified air passing through the air filter to be discharged into the atmosphere.

2. In the first paragraph, the wet stirring chamber, A tubular member having a length and an inlet pipe on the upper side through which exhaust gas flows; A main pipe in which the other end of the above inlet pipe is connected to one side of the upper part, a drive shaft is installed rotatably in the center of the inside, and the inside is filled with 10 to 90% of cleaning water to provide a space where exhaust gas flowing in from the above inlet pipe stays; An exhaust gas treatment device characterized by comprising a connecting pipe, which is connected to the other side of the main pipe and is a pipe through which mixed water is pressure-supplied to the wet tank.

3. In the second paragraph, the main pipe is provided with a flange gasket, which is a watertight element to prevent the washing water from leaking out to the outside, and a driving motor that transmits driving force by being connected to the driving shaft through a shaft coupling is provided on one side of the flange gasket; An exhaust gas treatment device characterized in that a through-hole plate having a plurality of through-holes formed on the other side of the main pipe facing the flange gasket and a plurality of propellers is installed to induce a uniform flow of cleaning water as it passes through.

4. An exhaust gas treatment device according to claim 2, characterized in that the inlet pipe has a heater coil installed on one side thereof to supply power and heat the exhaust gas introduced therein to a high temperature and combust it.

5. In the first paragraph, the wet tank is filled with cleaning water inside, and is provided with a discharge port through which mixed water passing through the wet stirring chamber is discharged in bubbles underwater based on the water surface, and a drain cock is provided on one side of the lower portion to selectively discharge the cleaning water to the outside, and a plug is provided on one side of the upper portion to introduce the cleaning water. An exhaust gas treatment device characterized in that.

6. An exhaust gas treatment device characterized in that, in paragraph 1, a water pump is installed on an outer side of the wet tank, which is connected to the wet filter and pumps the filtered treated water through a pumping action through a nozzle pipe connected to the wet stirring chamber and having a spray nozzle connected to the end thereof.

7. An exhaust gas treatment device characterized in that, in paragraph 1, an air motor is installed between the air filter and the exhaust pipe to apply a blowing force to suck in purified air passing through the air filter and discharge it through the exhaust pipe.

Images