KR102427935B1 - Wet electrostatic precipitation system capable of simultaneous treatment of complex gas mixed with particulate and gaseous pollutants including wet scrubber - Google Patents

Abstract

The present invention relates to a wet electrostatic precipitation system including a wet scrubber, capable of simultaneously treating a complex gas mixed with particulate and gaseous contaminants, after simultaneously removing the particulate contaminant such as oil mist and dust, the gaseous contaminant, and an organic solvent contained in an exhaust gas by an inflow and an outflow of the complex gas mixed with the contaminants, a process gas from which the particulate and gaseous contaminants are removed, is configured to be discharged into the atmosphere through a water-cooled condenser and a wet electrostatic precipitation unit, accordingly, a treatment of the complex gas mixed with the contaminants can be treated in one treatment system, since the gaseous contaminant is removed after the particulate contaminant is removed, a contamination of a cleaning solution used in circulation can be reduced, thereby reducing a frequency of replacing the cleaning solution, since a cleaner cleaning solution is used, not only a treatment efficiency of the gaseous contaminant can be improved but also a component failure can be prevented, and a cleaning frequency can be reduced, thereby reducing a waste of manpower and costs.

Description

Wet electrostatic precipitation system capable of simultaneous treatment of complex gas mixed with particulate and gaseous pollutants including wet scrubber

The present invention relates to a wet electrostatic precipitation system for processing a composite gas in which particulate and gaseous pollutants are mixed among harmful gases generated by various industrial activities, and more particularly, to a wet electrostatic precipitation system generated by various industrial facilities or human activities. By treating the complex gas discharged by mixing particulate pollutants such as dust (dust) and oil mist, and gaseous air pollutants such as sulfur oxides, nitrogen oxides, and various organic solvents in harmful gas containing various air pollutants. By including a wet scrubber unit, a moisture removal unit by condensation, and a wet electrostatic precipitator so that it can be discharged to the atmosphere, the complex gas treatment with pollutants can be processed in one treatment system, and particulate pollutants are removed. Since gaseous contaminants are removed afterward, contamination of the circulating cleaning liquid is reduced, so the frequency of cleaning liquid exchange can be reduced. It relates to a complex gas treatment system in which particulate and gaseous pollutants are mixed using a wet scrubber that can prevent component parts failure and reduce the frequency of cleaning, thereby reducing manpower wastage and cost.

In general, a large amount of harmful gas is discharged together with dust in a facility where a high-temperature dust collector is installed.

In particular, in the exhaust gas discharged from various combustion facilities such as boilers, power plants or incinerators, substances harmful to the human body such as acid gases such as nitrogen oxides, hydrogen chloride and sulfur oxides, aromatic halides including carbon monoxide and dioxins are emitted together with dust. , many studies have been conducted to remove them, and various methods have been proposed, and some techniques are already being put to practical use.

A dust collector using a conventional bag filter or a ceramic filter is applied to the removal of the dust, and as a general removal technology for harmful gas, a specific removal technology for each harmful gas is applied. In general, selective catalytic reduction (SCR) or selective catalytic reduction (SNCR) is the most representative.

More specifically, in the case of SCR, in general, a catalyst prepared by reacting a noble metal material such as platinum, palladium, rhodium, or other transition metal material such as vanadium, iron, cobalt, copper, etc. with titanium dioxide, vanadium oxide, alumina, zeolite, etc. is bonded to a base such as a durable honeycomb-type cordierite and loaded into the reaction tower in several stages, or the catalyst is made in the form of particles and filled in the reaction tower, and then heated to a high temperature using ammonia or ammonia water as a reducing agent. A technology is used to selectively reduce only nitrogen oxides and convert them into nitrogen gas by spraying them on a heated catalyst.

On the other hand, SNCR is to reduce nitrogen oxide by spraying ammonia or ammonia or urea solution directly to the combustion site. have.

In addition, a process consisting of three steps is known as a prior art for removing nitrogen oxides using an oxidizing agent.

More specifically, this technology oxidizes NO to NO ₂ by spraying NaClO ₂ as an oxidizing agent to the first reaction tower (first trickle tower), and the NO ₂ gas introduced from the first reaction tower is converted into the second reaction tower (second reaction tower). 2) spraying Na ₂ S as a reducing agent to reduce NO ₂ to N ₂ use.

However, this method has a complicated process configuration compared to the conventional wet alkali cleaning method using a single reaction tower, and in order to effectively remove the NO gas, the concentration of NaClO ₂ , an oxidizing agent, must be high, so there is a problem that economic efficiency is lowered. The SCR method is mainly used.

In addition, in the case of removing sulfur oxides, there is a method of adsorbing sulfur oxides and refining them with sulfuric acid. However, since these processes require large-scale equipment, it is difficult to apply to small dust collectors and in most cases, slaked lime or quicklime powder or A method of spraying a slurry containing this as a main component to exhaust gas is used.

However, this method has a problem in that the reaction efficiency of the powder or slurry is low, so that a large amount of secondary pollutants is generated, and the operation cost of the purification facility is increased according to the use of a large amount of reactants.

In addition, in the case of aromatic halogen compound removal technology including dioxin, decomposition technology using high-pressure discharge facility, plasma, oxidation catalyst tower, etc. is being developed. In this case, the method of adsorption using activated carbon is added and widely used.

Recently, a technology for simultaneously removing each hazardous substance without separately treating it has been developed, but the development of a form that can be put to practical use has not been made so far.

Accordingly, a method of sequentially applying the above-described techniques to sequentially remove each dust and harmful substances is used, but in this case, there is a problem in that the dust collection and purification equipment is complicated and large.

As described above, when a separate treatment device is installed for each pollutant item in the exhaust gas treatment in which complex pollutants are discharged together, high cost, difficulty in management, and the need for a large number of sites are raised.

Therefore, in order to compensate for these problems, there is a need to develop a technology capable of simultaneously processing various complex pollutants and improving the efficiency to compensate for the above problems and improve environmental pollution at low cost.

In consideration of this point, in Patent Application No. 10-2013-0086531, a complex purification device for harmful gases that discharges complex pollutants together has been proposed.

Looking at it, the conventional complex purification apparatus for harmful gas from which complex pollutants are discharged together includes an oxidation reaction tank in which a first injection device for spraying a water-soluble oxidizing agent is installed to oxidize oxides contained in harmful gases introduced from the outside; A first wet electrostatic precipitator that collects and recovers fine dust and water-soluble oxidizing agent residues contained in the noxious gas that has passed through the oxidation reaction tank, and a water-soluble neutralizer spraying agent to neutralize the noxious gas that has passed through the first wet electrostatic precipitator 2 A neutralization reactor equipped with an injection device, a second wet electrostatic precipitator that collects and recovers salt and water-soluble neutralizing agent residues contained in the harmful gas that has passed through the neutralization reactor, and a first supply pipe to the first injection device It is connected and includes an oxidizer storage tank for storing a water-soluble oxidizing agent and a neutralizer storage tank connected to the second injection device through a third supply pipe and storing a water-soluble reducing agent, and a first wet electric dust collector is installed at the rear end of the oxidation reaction tank, The oxidizing agent storage tank is installed under the first wet electrostatic precipitator, a neutralization reaction tank is installed at a rear end of the first wet electrostatic precipitator, and the neutralizing agent storage tank is installed under the neutralization reaction tank.

However, as described above, the conventional complex purification apparatus for purifying harmful gases in which complex contaminants are discharged together uses an oxidizing agent and a neutralizer to purify the harmful gases in which complex contaminants are discharged together. There is a disadvantage in that a large amount of cost is inevitably generated during operation of the device.

Patent Application No. 10-2013-0086531, filing date; July 23, 2013

Accordingly, the present invention has been devised to solve the above problems, and by the inflow and outflow of a composite gas mixed with pollutants, particulate pollutants such as oil mist and dust included in exhaust gas, gaseous pollutants, and organic After simultaneously removing solvents, etc., the process gas from which particulate pollutants and gaseous pollutants are removed can be discharged into the atmosphere through a water-cooled condenser and a wet electric dust collector. Since the gaseous contaminants are removed after the particulate contaminants are removed, the contamination of the circulating cleaning liquid is reduced, so the frequency of cleaning liquid exchange can be reduced, and by using a cleaner cleaning liquid, gaseous contamination Composite gas mixed with particulate and gaseous pollutants, including wet scrubbers, that can not only increase the processing efficiency of substances, but also prevent component parts failure, and reduce the frequency of cleaning to reduce manpower and cost. An object of the present invention is to provide a wet electrostatic precipitation system capable of simultaneous treatment of

Other objects of the present invention will become apparent as the technology progresses.

The present invention for achieving the above object is a wet electric dust collection system capable of simultaneously processing a composite gas mixed with particulate and gaseous pollutants including a wet scrubber, and at one end is a guide duct for guiding the composite gas mixed with pollutants. It is formed to be connectable to (D), the other end is formed to discharge the stored cleaning solution, and the outer peripheral surface removes particulate pollutants and gaseous pollutants mixed in the composite gas introduced into the interior through the guide duct (D). The wet scrubber unit 110 is provided so as to discharge the processing gas, and the processing gas is installed on one side of the wet scrubber unit 110 to introduce and discharge the processing gas discharged from the wet scrubber unit 110 . A water-cooling condenser installed between the 1st, 2nd, and 3rd filters and the 2nd and 3rd filters to be able to remove the moisture contained in the water-removing part 130 and the water-removing part 130 comprising a cooling tower It is installed on one side and is provided so that fine dust and gaseous contaminants contained in the process gas introduced after moisture is removed from the moisture removal unit 130 can be removed by corona discharge to correspond to the application of high voltage from the high voltage applying unit. Including an electric dust collecting unit 150, the wet scrubber unit 110, one end is fixedly connected to the guide duct (D) for guiding the composite gas mixed with contaminants, the other end is formed so as to discharge the stored cleaning solution and a primary wet scrubber unit 1110 provided on the outer peripheral surface to discharge gaseous pollutants while removing particulate pollutants mixed in the composite gas introduced into the interior through the guide duct (D); While being installed in communication with each other through the gaseous pollutant discharge pipe 1120 on one side of the scrubber part 1110, the cleaning liquid of the primary wet scrubber part 1110 is introduced and stored inside through the cleaning liquid discharge pipe 1130. A cleaning liquid spraying unit 1 that sprays a cleaning liquid onto the filler 1141 and the filler 1141 in which the gaseous pollutants introduced through the gaseous pollutant discharge pipe 1120 are installed. 142) and a secondary wet scrubber unit 1140 provided to remove and discharge gaseous pollutants by passing through a demister 1143 installed on the cleaning liquid spray unit 1142, and the secondary wet scrubber unit 1140 An outlet pipe 1151 and a circulation pump 1152 and for the primary wet scrubber unit so that the cleaning liquid stored in the scrubber unit 1140 can be supplied and circulated to the inside of the primary wet scrubber unit 1110 and the secondary wet scrubber unit 1140 It is characterized in that it is composed of a cleaning solution supply circulation unit 1150 that is drivably provided to correspond to the control of the control unit, including the supply pipe 1153 and the supply pipe 1154 for the secondary wet scrubber unit.

In addition, in the lower inner portion of the outer cylinder 1112 for removing particulate contaminants to which the cleaning liquid discharge pipe 1130 is piped, the particulate contaminants are removed through the primary wet scrubber unit 1110. The floating matter removal unit 1114 is further provided so as to increase the replacement cycle of the filler 1141 provided inside the secondary wet scrubber unit 1140 by discharging and removing the suspended matter to prevent contamination of the cleaning liquid. do.

And, between the cleaning liquid discharge pipe 1130 and the lower outer peripheral surface of the secondary wet scrubber unit 1140, one end and the other end are piped in communication with the lower outer peripheral surface of the cleaning liquid discharge pipe 1130 and the secondary wet scrubber unit 1140. , by supplying the cleaning liquid stored in the secondary wet scrubber unit 1140 to the primary wet scrubber unit 1110 side to rapidly increase the level of the cleaning liquid stored in the primary wet scrubber unit 1110, whereby the suspension agent It is characterized in that a water level control pipe 1115 having an openable and openable water level control valve 1115a installed therein is further provided so that the floating material can be quickly discharged through the rejection 1114 .

As described above, according to the wet electrostatic precipitation system capable of simultaneously processing the composite gas in which particulate and gaseous pollutants are mixed, including the wet scrubber according to the present invention, the composite gas in which the pollutants are mixed can be treated in one treatment system. Since the gaseous contaminants are removed after the particulate contaminants are removed, the contamination of the circulating washing liquid is reduced, and with the effect of reducing the frequency of washing liquid exchange, by using a cleaner cleaning liquid, the gaseous It is possible to increase the processing efficiency of pollutants, prevent failure of component parts, and reduce the frequency of cleaning, thereby reducing manpower wastage and cost.

1 is a block diagram illustrating a wet electric dust collection system capable of simultaneously processing a composite gas in which particulate and gaseous pollutants are mixed including a wet scrubber according to the present invention.
FIG. 2 is a view showing a wet scrubber unit of a wet electric dust collecting system capable of simultaneously processing a composite gas in which particulate and gaseous pollutants are mixed, including the wet scrubber according to the present invention.
FIG. 3 is a plan view illustrating a wet scrubber unit of a wet electric dust collecting system capable of simultaneously processing a composite gas in which particulate and gaseous pollutants are mixed, including a wet scrubber according to the present invention.
4 is a view showing the primary wet scrubber part of the wet electric dust collection system capable of simultaneously processing a composite gas in which particulate and gaseous pollutants are mixed, including the wet scrubber according to the present invention.
5 is a view illustrating a floating matter removal unit of a wet electric dust collecting system capable of simultaneously processing a composite gas in which particulate and gaseous pollutants are mixed, including a wet scrubber according to the present invention.
6 is an enlarged view of a water removal unit of a wet electric dust collecting system capable of simultaneously processing a composite gas in which particulate and gaseous pollutants are mixed including a wet scrubber according to the present invention.
7 is an enlarged view of a wet electrostatic precipitator of a wet electrostatic precipitation system capable of simultaneously processing a composite gas in which particulate and gaseous pollutants are mixed including a wet scrubber according to the present invention.

Hereinafter, an embodiment of a wet electrostatic precipitation system capable of simultaneously processing a composite gas in which particulate and gaseous pollutants are mixed, including a wet scrubber according to the present invention, will be described in detail.

First, it should be noted that in the drawings, the same components or parts are denoted by the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted so as not to obscure the gist of the present invention.

As shown, the present invention is a wet electric dust collection system 100 capable of simultaneously processing a composite gas mixed with particulate and gaseous pollutants including a wet scrubber, and at one end is a guide duct for guiding the composite gas mixed with pollutants ( D) and the other end is formed to discharge the stored cleaning solution, and the outer peripheral surface is formed by removing particulate and gaseous pollutants mixed in the composite gas introduced into the interior through the guide duct (D). By introducing and discharging the wet scrubber unit 110 provided so as to be capable of discharging processing gas (clean gas), and the processing gas installed on one side of the wet scrubber unit 110 and discharged from the wet scrubber unit 110 . A water removal unit 130 including a water-cooled condenser and a cooling tower installed between the 1st, 2nd, and 3rd filters and the 2nd and 3rd filters so as to be able to remove the water contained in the process gas, and the water removal unit (130) It is installed on one side of the moisture removal unit 130 to collect and remove fine dust and gaseous contaminants contained in the inflowing process gas by corona discharge to correspond to the application of high voltage from the high voltage applying unit. A wet electric dust collecting unit 150 is included, and the wet scrubber unit 110 has one end fixedly connected to the guide duct D for guiding the composite gas mixed with contaminants, and the other end discharging the stored cleaning solution. A primary wet scrubber unit 1110 provided on the outer circumferential surface to discharge gaseous pollutants while removing particulate pollutants mixed with the composite gas introduced into the interior through the guide duct (D); While being installed to communicate with each other through the gaseous pollutant discharge pipe 1120 on one side of the primary wet scrubber unit 1110, the washing liquid of the primary wet scrubber unit 1110 is introduced into the inside through the washing solution discharge pipe 1130 and stored. The cleaning solution is sprayed onto the filler 1141 and the filler 1141 in which the gaseous pollutants introduced through the gaseous pollutant discharge pipe 1120 are built in. A secondary wet scrubber unit 1140 provided to remove and discharge gaseous contaminants by passing through the cleaning liquid spray unit 1142 and the demister 1143 installed on the cleaning liquid spray unit 1142, An outlet pipe 1151, a circulation pump 1152, and 1 to supply and circulate the cleaning liquid stored in the secondary wet scrubber unit 1140 into the primary wet scrubber unit 1110 and the secondary wet scrubber unit 1140. It includes a supply pipe 1153 for the primary wet scrubber unit and a supply pipe 1154 for the secondary wet scrubber unit and includes a cleaning solution supply circulation unit 1150 that is drivably provided to correspond to the control of the control unit, and the primary wet scrubber unit ( 1110), by being installed at a place where the complex gas mixed with contaminants is discharged, is fixedly connected to the guide duct (D) at one end to filter particulate contaminants of the complex gas mixed with contaminants introduced therein. An inner cylinder 1111 for removing particulate contaminants provided so as to be removable, and an inner cylinder 1111 for removing particulate contaminants are accommodated inside and fixed in the form of a cylinder with an open top so that a cleaning solution can be stored therein, A discharge portion 1112a provided to discharge the cleaning liquid toward the secondary wet scrubber unit 1140 through the cleaning liquid discharge pipe 1130 is formed at the lower portion, and gaseous contaminants from which particulate contaminants are removed are disposed on the outer circumferential surface of the secondary wet scrubber unit 1140. One end is the cleaning solution supply circulation unit 1150 by being vertically positioned on the wet scrubber unit 1140, the outer cylinder 1112 for removing particulate contaminants, and the inner cylinder 1111 for removing particulate contaminants, which are provided to be guided inside. ) is rotatably connected to the supply pipe 1153 for the primary wet scrubber part, and the cleaning solution supply circulation part 1150 while rotating by the wind pressure of the composite gas mixed with the contaminants introduced through the guide duct (D). Particulate pollutant removal means 1113 provided so that the cleaning liquid supplied by do.

In addition, in the lower inner portion of the outer cylinder 1112 for removing particulate contaminants to which the cleaning liquid discharge pipe 1130 is piped, the particulate contaminants are removed through the primary wet scrubber unit 1110. The replacement period of the filler 1141 provided inside the secondary wet scrubber unit 1140 according to the discharge and removal of the rotating floating matter by the particulate contaminant removal means 1113 to prevent contamination of the cleaning solution. A floating matter removal unit 1114 is further provided.

And, between the cleaning liquid discharge pipe 1130 and the lower outer peripheral surface of the secondary wet scrubber unit 1140, one end and the other end are piped in communication with the lower outer peripheral surface of the cleaning liquid discharge pipe 1130 and the secondary wet scrubber unit 1140. , by supplying the cleaning liquid stored in the secondary wet scrubber unit 1140 to the primary wet scrubber unit 1110 side to rapidly increase the level of the cleaning liquid stored in the primary wet scrubber unit 1110, whereby the suspension agent A water level control pipe 1115 provided with an openable and openable water level control valve 1115a is further provided so that the floating material can be quickly discharged through the rejection 1114 .

Hereinafter, the wet electrostatic precipitation system capable of simultaneously processing a composite gas mixed with particulate and gaseous pollutants including the wet scrubber according to the present invention will be described in more detail with reference to the accompanying drawings 1 to 7 . As follows.

First, the wet scrubber unit 110 of the wet electrostatic precipitation system 100 capable of simultaneously processing a composite gas in which particulate and gaseous contaminants are mixed, including the wet scrubber according to the present invention, is one end of which is mixed with contaminants. Formed to be connectable with the guide duct (D) for guiding the composite gas, the other end is formed to discharge the stored cleaning solution, and particulate contamination mixed with the composite gas introduced into the interior through the guide duct (D) on the outer peripheral surface A primary wet scrubber unit 1110 composed of an inner cylinder 1111 for removing particulate pollutants, an outer cylinder 1112 for removing particulate pollutants, and a particulate pollutant removing means 1113 so that substances and gaseous pollutants can be removed and discharged. And, to be composed of a secondary wet scrubber unit 1140 and a cleaning solution supply circulation unit 1150, the inner cylinder 1111 for removing particulate pollutants is installed at a place where the composite gas mixed with pollutants is discharged. By this, one end is fixedly connected to the guide duct (D) and provided so as to be removable by filtering the particulate pollutants of the composite gas mixed with the pollutants introduced therein.

That is, the inner cylinder 1111 for removing particulate contaminants is formed as a hollow tube having a circular or polygonal cross section having an upper flange portion 1111a formed on one end of the outer peripheral surface so as to be connected to the guide duct (D), The outer circumferential surface is guided through the guide duct (D) and a plurality of perforated holes 1111b are formed to prevent particulate contaminants from flowing back into the interior while filtering particulate contaminants of the composite gas mixed with the introduced contaminants. has been provided

In addition, the lower flange portion 1111a for connecting the guide duct of the inner cylinder 1111 for removing particulate contaminants is provided with a lower flange portion 111c so as to be fixedly connected to the outer cylinder 1112 for removing particulate contaminants. do.

The outer cylinder 1112 for removing particulate contaminants receives the inner cylinder 1111 for removing particulate contaminants inside, and stores and discharges a cleaning solution, while discharging the gaseous contaminants from which particulate contaminants are removed in the secondary wet It is provided so as to be guiding toward the scrubber unit 1140 .

That is, the outer cylinder 1112 for removing particulate contaminants has an upper portion opened to store and discharge the cleaning liquid while accommodating and fixing the inner tube 1111 for removing particulate contaminants, and the lower portion is a cleaning liquid discharge pipe for the stored cleaning liquid The discharge part 1112a is formed so that it can be discharged to the inside of the secondary wet scrubber part 1140 through 1130, and the flange part 1112b is formed on the outer peripheral surface to be fixed with the lower flange part 111c and, as well as, On the outer circumferential surface, one end of the gaseous pollutant discharge pipe 1120 is connected to the inside so that the gaseous pollutants generated by the rotation of the particulate pollutant removal means 1113 can be discharged toward the secondary wet scrubber unit 1140 side. A connector (reference numeral omitted) is formed and provided so as to be connected.

In addition, on one side of the lower part of the connector formed on the outer peripheral surface of the outer cylinder 1112 for removing particulate pollutants, the supply pipe 1153 for the primary wet scrubber unit of the cleaning solution supply circulation unit 1150 is piped inside the pipe installation hole. (reference numeral omitted) is further formed and provided.

The particulate pollutant removal means 1113 is vertically positioned on the inner cylinder 1111 for removing particulate pollutants, so that one end rotates with the supply pipe 1153 for the primary wet scrubber of the cleaning solution supply circulation unit 1150 . The inner cylinder for removing particulate pollutants is connected and installed to allow the cleaning solution supplied by the cleaning solution supply circulation unit 1150 while rotating by the wind pressure of the composite gas mixed with the pollutants introduced through the guide duct (D). 1111 is provided so as to be able to be sprayed on the inner peripheral surface side.

That is, the particulate pollutant removal means 1113 has one end fixed to the upper inner surface of the inner cylinder for removing particulate pollutants and a bearing (reference numeral omitted) installed at the other end of the fixing member 1113a for removing particulate pollutants. ) and the first end of the cleaning solution supply circulation unit 1150 installed to the bearing of the fixing member 1113a for removing particulate contaminants and the other end being piped inside the inner cylinder 1111 for removing particulate contaminants. It is formed as a hollow tube rotatably installed vertically inside the inner cylinder 1111 for removing particulate contaminants by installing the swivel joint 1113b to the supply pipe 1153 for the wet scrubber part, but on the outer circumferential surface A plurality of cleaning liquid injection holes for removing particulate contaminants at regular intervals in the longitudinal direction so that the cleaning liquid supplied through the cleaning liquid supply circulation unit 1150 can be sprayed toward the inner circumferential side of the inner cylinder 1111 for removing particulate contaminants ) is formed and provided with a rotary injection pipe 1113c for removing particulate pollutants, and a composite in which pollutants introduced through the guide duct D are formed on the outer peripheral surface of the rotary injection pipe 1113c for removing particulate pollutants. The wing part 1113d for forming a vortex is formed in a spiral shape so that a vortex can be generated by rotating the composite gas mixed with pollutants while rotating the rotary injection pipe 1113c for removing particulate pollutants by the wind pressure of the gas. is composed of

The suspended matter removal unit 1114 is disposed on the lower inner side of the outer cylinder 1112 for removing particulate contaminants to which the cleaning solution discharge pipe 1130 is piped, through the primary wet scrubber unit 1110 of the wet scrubber unit 110, particulate form. The secondary wet scrubber unit 1140 is provided inside the second wet scrubber unit 1140 as it floats on the water surface of the stored cleaning liquid as the contaminants are removed and is rotated by the particulate contaminant removal means 1113 to prevent contamination of the cleaning liquid by discharging and removing them. It is provided so as to increase the replacement cycle of the filler 1141 to be.

That is, the floating matter removal unit 1114 is fixedly installed on the inner lower part of the outer cylinder 1112 for removing particulate pollutants, so that the upper end is located above the water surface of the stock solution. Doedoe, the upper part of the outer circumferential surface is provided with a floating material inlet (1114a') cut off so that the floating material rotating by the particulate pollutant removing means 1113 can be introduced and provided with an inlet member for removing the floating material 1114a; The lower part and one end of the inlet member 1114a for removing floating matter are connected, and the other end is formed of a tube connected to a floating matter storage unit (not shown), and an on/off valve 1114b' for floating matter discharge is installed on the tube. Consists of a discharge pipe 1114b for removing floating matter.

The secondary wet scrubber unit 1140 and the cleaning solution supply circulation unit 1150 are well-known technologies configured in a general pollutant treatment system, and detailed descriptions thereof will be omitted below.

The water removal unit 130 is installed between the wet scrubber unit 110 and the wet electric dust collector 150 , and the treatment gas discharged from the wet scrubber unit 110 is introduced and discharged. A water-cooled condenser and a cooling tower installed between the 1st, 2nd, and 3rd filters and the 2nd and 3rd filters to remove moisture contained in the gas and supply the treated gas from which the moisture has been removed to the wet electric dust collector 150 . To be configured to include, such a water removal unit 130 is a known technology configured in a pollutant treatment system, a detailed description will be omitted below.

As described above, since the moisture removal unit 130 removes moisture contained in the process gas and supplies it to the inside of the wet electric dust collector 150, it is possible to prevent sparks caused by moisture when the electric dust collector is discharged. It can prevent malfunction and fire.

The wet electrostatic precipitator 150 is installed on one side of the water removal unit 130, and the processing gas from which the water has been removed flows into the inside and is processed by corona discharge to correspond to the application of a high voltage from the high voltage application unit. It is provided to collect and remove fine dust and gaseous pollutants contained in the gas, and the wet electric dust collecting unit 150 is formed as a hollow barrel in which the inlet formed at the upper end and the outlet formed at the lower end communicate with each other. A housing for electric dust collection provided to be installed vertically with respect to the housing, a discharge unit which is fixedly installed inside the housing for electric dust collection and is provided with a plurality of discharge electrodes so that corona discharge occurs when a high voltage is applied from a high voltage applying unit; A dust collecting unit provided with a plurality of dust collecting plates alternately installed with the discharge electrode by being positioned on the upper part of the discharge unit to collect foreign particles in the air charged by the corona discharge of the discharge unit, the electric dust collecting unit is horizontal to the housing A rotary bar for moving the washing water spraying means is rotatably installed in the direction to correspond to the driving of the driving motor for moving the washing water spraying means, which is located on the upper part of the dust collecting part and is provided to rotate the rotary bar for moving the washing water spraying means A driving part for moving the washing water jet means provided to move the washing water jet nozzle of the washing water jet means in one direction and the other direction, and the driving part for moving the washing water jet means installed on a rotating bar for moving the washing water jet means The cleaning water spraying means is provided on one side of the housing for electric dust collection and is installed on one side of the housing for electric dust collection and is moved in one direction and the other direction to correspond to the driving of the cleaning water spraying means and the other direction, and the cleaning water is sprayed toward the dust collecting plate of the dust collecting part through the outlet. and a washing water circulation unit provided so that the washing water can be reused by introducing the discharged used water into the inside, passing it through a filtration filter, and supplying the washing water to the washing water jetting means, wherein the washing water jetting means is configured to spray the washing water. It is installed on the rotating bar for moving the washing water injection means of the driving part for moving the means and the driving part for moving the washing water spraying means is driven. The washing water by being fixedly connected to a moving part for washing water provided with a spiral hole formed in the central part so as to be movable in one direction and the other direction corresponding to the washing water, and a lug having one end fixed to the moving part for washing water, as a medium. Doedoe orthogonal to the rotating bar for moving the water spraying means, the washing water injection nozzle part is provided with a plurality of cleaning liquid injection nozzles at regular intervals on the bottom surface, and one end of the cleaning water injection nozzle part is connected in communication with the inside on one side of the upper outer peripheral surface. and a washing water supply hose having one end connected to the other end of the elbow tube, and the other end being connected to the washing water circulation unit through a pipe hole formed in the electric dust collecting housing to supply washing water. And, a proximity sensor installed at one end of the washing water jet nozzle unit and fixed on both sides of the inside of the electric dust collecting housing while the washing water jet nozzle unit is moved in one direction and the other is turned ON or OFF It is composed of a proximity sensor sensing plate provided to enable to be omitted.

One or two wet electric dust collectors 150 may be configured to be installed in parallel.

The inside of the primary wet scrubber part 1111 of the wet scrubber part 110 of the wet electrostatic precipitation system 100 capable of simultaneously processing the composite gas in which particulate and gaseous pollutants are mixed including the wet scrubber according to the present invention made as described above When the composite gas mixed with particulate and gaseous pollutants is introduced through the guide duct D, the cleaning liquid supplied by the driving of the cleaning liquid supply circulation unit 1150 as shown in FIGS. The rotary injection pipe 11`3c for removing particulate contaminants of the particulate contaminant removal means 11`3 being sprayed toward the inner peripheral surface of the inner cylinder 11`1 for removing particulate contaminants through the cleaning liquid injection hole for removing particulate contaminants. ), the rotary injection pipe (`113c) for removing particulate pollutants of the particulate pollutant removal means (1`13) is rotated by the compound gas mixed with pollutants collide with the vortex forming wing part (`113d). .

Therefore, the particulate contaminants contained in the composite gas in which particulate and gaseous contaminants are mixed, while rotating while forming a vortex, the cleaning liquid injection hole for removing particulate contaminants formed in the rotary injection pipe 1113c for removing particulate contaminants The gaseous contaminants that are removed by the cleaning liquid sprayed through and remaining due to the removal of particulate contaminants are introduced into the secondary wet scrubber unit 1140 through the gaseous contaminant discharge pipe 1120 .

At this time, the removed particulate contaminants are suspended on the surface of the cleaning liquid stored in the outer cylinder 1112 for removing particulate contaminants, and the suspended matter floating on the surface of the cleaning liquid is removed through the floating matter removal unit 1114 .

On the other hand, the gaseous contaminants introduced into the secondary wet scrubber unit 1140 are the filler 1141 and the cleaning liquid spraying unit 1142 that sprays the cleaning liquid to the upper portion of the filler 1141 , and the upper portion of the cleaning liquid spraying unit 142 . After being removed by passing through the demister 1143 installed in the wet scrubber unit 110, the moisture removal unit 130 installed on one side is introduced into the inside.

The process gas from which moisture is removed and moisture is removed while the process gas introduced into the moisture removal unit 130 passes through the first, second, and third filters and the water-cooled condenser installed between the second and third filters is introduced into the wet electric dust collector 150 installed on one side of the water supply water removal unit 130 .

Fine dust and gaseous contaminants contained in the process gas from which the moisture introduced into the wet electrostatic precipitator 150 has been removed generates an electric field by a high voltage applied to the discharge electrode, and then an electric field is generated by a high voltage between the two electrodes. This strong part causes a corona discharge, which is a phenomenon with conductivity, so that electric charges are generated and moved around the discharge electrode, thereby charging fine dust. It is subjected to a force, and is drawn to the dust collecting plate by the Coulomb force, and is collected by being attached to the dust collecting plate surface, and gaseous contaminants are removed by the high-temperature heat generated during corona discharge.

Accordingly, clean air is discharged from the air discharged through the wet electric dust collecting unit 150 .

As described above, the complex gas treatment in which particulate and gaseous contaminants are mixed can be processed in one treatment system, and after particulate contaminants are removed from the primary wet scrubber unit of the wet scrubber unit, particulate contamination is directed toward the secondary wet scrubber unit. Since the pollutants from which the material has been removed, that is, the gaseous pollutants are introduced and removed, the frequency of replacing the fillers of the secondary wet scrubber unit can be reduced, and the floating substances suspended in the cleaning liquid of the primary wet scrubber unit can be removed through the suspended matter removal unit. In this case, it is possible to increase the processing efficiency of gaseous pollutants by using a cleaner cleaning solution.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100 ; Wet electrostatic precipitation system capable of simultaneous treatment of complex gas mixed with particulate and gaseous pollutants including wet scrubber
110 ; wet scrubber
130 ; moisture removal unit
150 ; wet electrostatic precipitator

Claims (8)

As a wet electrostatic precipitation system capable of simultaneously processing a complex gas mixed with particulate and gaseous pollutants including a wet scrubber,
One end is formed to be connectable with the guide duct (D) that guides the complex gas mixed with contaminants, the other end is formed so as to discharge the stored cleaning solution, and on the outer circumferential surface is introduced into the interior through the guide duct (D). a wet scrubber unit 110 provided to discharge the process gas by removing particulate pollutants and gaseous pollutants mixed in the composite gas;
The first, second, and third filters are installed on one side of the wet scrubber unit 110 to allow the removal of moisture contained in the treatment gas by introducing and discharging the treatment gas discharged from the wet scrubber unit 110 and the a water-cooling condenser installed between the secondary and tertiary filters and a water removal unit 130 configured including a cooling tower;
It is installed on one side of the water removal unit 130, and the moisture is removed from the water removal unit 130 and the dust and gaseous pollutants contained in the incoming process gas are converted to corona discharge to correspond to the high voltage applied from the high voltage applying unit. Including a wet electrostatic precipitation unit 150 that is removably provided,
The wet scrubber unit 110, one end is fixedly connected to the guide duct (D) for guiding the compound gas mixed with contaminants, the other end is formed so as to discharge the stored cleaning liquid, the outer peripheral surface of the guide duct (D) ), a primary wet scrubber unit 1110 provided so as to discharge gaseous pollutants while removing particulate pollutants mixed in the composite gas introduced into the interior, and gaseous contamination on one side of the primary wet scrubber unit 1110 The gaseous pollutant discharge pipe 1120 is installed to communicate with each other through the material discharge pipe 1120, and the cleaning solution of the primary wet scrubber unit 1110 is introduced and stored inside through the cleaning solution discharge pipe 1130. The gaseous contaminants introduced through the filler 1141, the cleaning liquid spraying part 1142 that sprays the cleaning liquid to the upper part of the filler 1141, and the cleaning liquid spraying part 1142. The demister 1143 installed on the upper part The secondary wet scrubber unit 1140 provided to remove and discharge gaseous contaminants by passing through, and the cleaning liquid stored in the secondary wet scrubber unit 1140 is mixed with the primary wet scrubber unit 1110 and the secondary Control of the control unit including an outlet pipe 1151 and a circulation pump 1152 and a supply pipe 1153 for the primary wet scrubber unit and a supply pipe 1154 for the secondary wet scrubber unit so as to circulate the supply to the inside of the wet scrubber unit 1140 to the cleaning solution supply circulation unit 1150 that is drivably provided to correspond to
A wet electrostatic precipitation system capable of simultaneously processing a composite gas mixed with particulate and gaseous pollutants, including a wet scrubber, characterized in that it is configured.
According to claim 1,
In the lower inner portion of the outer cylinder 1112 for removing particulate contaminants to which the cleaning liquid discharge pipe 1130 is piped, the floating matter floating on the surface of the stored cleaning liquid as particulate contaminants are removed through the primary wet scrubber unit 1110. Wet scrubber, characterized in that the floating matter removal unit 1114 is further provided so as to increase the replacement cycle of the filler 1141 provided inside the secondary wet scrubber unit 1140 according to the discharge and removal to prevent contamination of the cleaning liquid. Wet electrostatic precipitation system capable of simultaneous treatment of complex gas mixed with particulate and gaseous pollutants including
3. The method of claim 2,
Between the cleaning solution discharge pipe 1130 and the lower outer circumferential surface of the secondary wet scrubber unit 1140, one end and the other end are piped in communication with the lower outer circumferential surface of the cleaning solution discharge pipe 1130 and the secondary wet scrubber unit 1140. By supplying the cleaning liquid stored in the primary wet scrubber unit 1140 to the primary wet scrubber unit 1110 to rapidly increase the level of the cleaning liquid stored in the primary wet scrubber unit 1110, the floating matter removal unit 1114 ) to quickly discharge suspended matter through the water level control valve (1115a) that can be opened and closed through the water level control pipe (1115) is further provided, characterized in that the composite gas of particulate and gaseous pollutants, including a wet scrubber, mixed Wet electrostatic precipitation system capable of simultaneous treatment of
3. The method of claim 2,
The first wet scrubber unit 1110 is installed at a place where the compound gas mixed with pollutants is discharged, so that one end is fixedly connected to the guide duct (D), and the mixed gas mixed with the pollutants introduced therein The inner cylinder 1111 for removing particulate contaminants is provided so as to be removable by filtering the particulate contaminants of It is formed in a cylindrical shape, and a discharge part 1112a provided to discharge the cleaning liquid to the secondary wet scrubber unit 1140 side through the cleaning liquid discharge pipe 1130 is formed at the lower part, and the outer peripheral surface is formed with particulate contaminants removed. An outer cylinder 1112 for removing particulate contaminants provided to guide gaseous contaminants to the inside of the secondary wet scrubber unit 1140, and an inner cylinder 1111 for removing particulate contaminants. It is rotatably connected to the supply pipe 1153 for the primary wet scrubber unit of the cleaning solution supply circulation unit 1150 and rotates by the wind pressure of the composite gas in which the contaminants introduced through the guide duct (D) are mixed. Particulate matter including a wet scrubber, characterized in that it comprises a particulate contaminant removing means 1113 provided so that the cleaning liquid supplied by the cleaning liquid supply circulation unit 1150 can be sprayed toward the inner circumferential side of the inner cylinder 1111 for removing particulate contaminants. and a wet electrostatic precipitation system capable of simultaneously processing a complex gas mixed with gaseous pollutants.
5. The method of claim 4,
The floating matter removal unit 1114 is formed in a funnel shape in which the upper part and the lower part communicate with each other so that the upper part is positioned above the water surface of the stock solution by being fixedly installed on the inner lower part of the outer cylinder 1112 for removing particulate pollutants, The upper part of the outer circumferential surface is provided with a floating material inlet 1114a ′ cut off so as to introduce the floating material rotating by the particulate pollutant removing means 1113 . The lower part and one end of the inlet member 1114a are connected, and the other end is formed of a tube connected to the floating matter storage unit (not shown), and an on/off valve 1114b' for floating matter discharge is installed on the tube for removing floating matter provided. A wet electrostatic precipitation system capable of simultaneously processing a composite gas in which particulate and gaseous pollutants are mixed, including a wet scrubber, characterized in that it is composed of a discharge pipe (1114b).
5. The method of claim 4,
The inner cylinder 1111 for removing particulate contaminants is formed as a hollow tube having a circular or polygonal cross-section having an upper flange portion 1111a formed on one end of the outer circumferential surface so as to be connected to the guide duct D, the outer circumferential surface is the A plurality of perforated holes 1111b are formed so as to prevent particulate pollutants from flowing back into the composite gas guided through the guide duct D while filtering the particulate pollutants of the composite gas mixed with the introduced pollutants, Particulate and gaseous pollutants including a wet scrubber, characterized in that a lower flange part 111c is formed and provided in the lower part of the upper flange part 1111a to be fixedly connected to the outer cylinder 1112 for removing particulate pollutants. Wet electrostatic precipitation system capable of simultaneous processing of complex gases.
5. The method of claim 4,
The outer cylinder 1112 for removing particulate contaminants has an upper portion opened to store and discharge the cleaning liquid while accommodating and fixing the inner tube 1111 for removing particulate contaminants, and the lower portion is a cleaning liquid discharge pipe 1130 for the stored cleaning liquid The discharge part 1112a is formed so that it can be discharged to the inside of the secondary wet scrubber part 1140 through the One end of the gaseous pollutant discharge pipe 1120 can be connected in communication with the inside so that the gaseous pollutant generated by the rotation of the particulate pollutant removing means 1113 can be discharged toward the secondary wet scrubber unit 1140. A connection port is formed so as to be able to, and on one side of the lower side of the connection port formed on the outer circumferential surface, a pipe installation hole is formed so that the supply pipe 1153 for the primary wet scrubber part of the cleaning solution supply circulation unit 1150 can be piped to the inside. A wet electrostatic precipitation system that can simultaneously process complex gases mixed with particulate and gaseous pollutants, including a wet scrubber.
5. The method of claim 4,
The particulate contaminant removal means 1113 has one end fixed to the upper inner surface of the inner cylinder for removing particulate contaminants and a bearing (reference numeral omitted) is installed at the other end to a fixing member 1113a for removing particulate contaminants; One end is installed to the bearing of the fixing member 1113a for removing particulate contaminants, and the other end is for the primary wet scrubber part of the cleaning solution supply circulation unit 1150 piped inside the inner cylinder 1111 for removing particulate contaminants. By being installed in the supply pipe 1153 via the swivel joint 1113b, it is formed as a hollow tube rotatably installed vertically inside the inner cylinder 1111 for removing particulate contaminants, and the cleaning liquid is supplied to the outer circumferential surface. A plurality of cleaning liquid injection holes for removing particulate contaminants (reference numerals omitted) are formed at regular intervals in the longitudinal direction so that the cleaning liquid supplied through the circulation unit 1150 can be sprayed toward the inner circumferential side of the inner cylinder 1111 for removing particulate contaminants. Wind pressure of the composite gas formed on the outer circumferential surface of the rotary injection pipe 1113c for removing particulate pollutants and the rotary injection pipe 1113c for removing particulate pollutants and mixed with pollutants introduced through the guide duct (D) By rotating the rotary injection pipe 1113c for removing particulate contaminants by rotating the compound gas mixed with contaminants by A wet electrostatic precipitation system capable of simultaneously processing a complex gas containing a mixture of particulate and gaseous pollutants, including a wet scrubber.

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