KR101827121B1 - High efficiency multistage vortex type wet scrubber - Google Patents

Abstract

The present invention relates to a high efficiency multi-stage vortex type wet scrubber, comprising: a cylindrical body; A first chamber installed at one side of the main body to receive the first cleaning liquid; A second chamber installed on the other side of the main body so as to be separated from the first chamber and accommodating the second cleaning liquid; A chamber separator installed vertically to separate the first chamber and the second chamber; An inlet port connected to the first chamber on one side wall of the main body and through which a gas flow containing air pollutants flows; At least one cleaning liquid ejection opening provided at an upper portion of the first chamber and higher than the inlet, for ejecting the first cleaning liquid; A first collision plate installed between the chamber separation plate and the inlet port in a vertical direction so as to face the inlet port; A first nozzle installed on the side of the first impingement plate toward the chamber separation plate; A second impingement plate installed at a side of the chamber separator plate at a position higher than the first nozzle toward the first impingement plate; A third collision plate spaced apart from the upper end of the chamber separator plate and installed laterally so as to be connected to the upper end of the first collision plate; A fourth collision plate that is connected to the second chamber side end of the third collision plate and is disposed in the vertical direction and is spaced apart from the chamber separation plate; A second nozzle installed on a side surface of the fourth collision plate in a direction of a sidewall of the second chamber side of the main body; A fifth collision plate installed on the other side wall of the body toward the fourth collision plate at a position higher than the second nozzle; A demister filter installed at an upper portion of the main body at a position higher than the third collision plate; An outlet provided at an upper end of the main body; A first cleaning liquid inlet formed on a side wall of the first chamber of the main body; A second cleaning liquid injecting port provided on a sidewall of the second chamber side of the main body; A first cleaning liquid discharge port installed at the bottom of the first chamber side of the main body; A second cleaning liquid discharge port installed at the bottom of the second chamber side of the main body; A first level determining device connected to the first cleaning liquid inlet; And a second level determining device connected to the second cleaning liquid injection port.

Description

[0001] The present invention relates to a high-efficiency multi-stage vortex type wet scrubber,

The present invention relates to a high efficiency multi-stage vortex type wet scrubber.

Since many industrial parks are located in many cities in Korea, and various types of factories are located in the industrial parks, such as machinery, chemicals, oil refining, etc., raw materials and products are used. Varies. Due to this diversity of exhaust air pollutants, there is a need to treat various pollutants simultaneously. However, since the characteristics and treatment methods of each pollutant are different, it is very difficult to apply a complex treatment facility, and there is a problem that a treatment facility for each pollutant must be installed separately. As a result, the factories in the industrial complexes are required to install and maintain additional facilities for the treatment of various pollutants, thereby putting an economic burden on many industries. Table 1 summarizes the treatment methods and treatment and operating characteristics of air pollutants.

division Physical treatment
(Centrifugal, filtration, electrostatic dust collection) Chemical treatment
(Activated carbon adsorption, chemical solution cleaning method) Biological treatment
(Soil, microbial treatment) Incineration treatment
(Direct, indirect combustion treatment) Particulate matter
(Fine dust) - limited particle size to be treated
- Electricity cost is high in case of electric dust collection Periodic replacement and cleaning are required due to the phenomenon of discoloration of activated carbon adsorbent and packing ring (Pall Ring). Stable treatment is difficult due to the phenomenon of discoloration of soil layer and microbial layer Pretreatment such as prefilter is required to treat coarse particulate matter Odor substance Can not be processed - Activated Carbon Adsorption: Selective Treatment by Properties (Acid, Alkaline)
- High concentration odor can be processed - Possible to handle odor of medium / low concentration
- Continuous supply of organic matter High fuel cost for odor treatment (suitable for volatile gas treatment such as VOC) Composite gas No treatment of odorous substances Difficulty in processing due to the phenomenon of discoloration of the media layer due to fine dust Facility is expensive and maintenance cost is high.

Recently, efforts have been made to supplement the disadvantages of the treatment of air pollutants. In recent years, hybrid prevention facilities which are applied to various processing apparatuses have been used in various fields. However, there is a disadvantage in that the installation cost and maintenance cost of the hybrid prevention facility is comparatively high and the facility is a combination of other facilities to be used separately.

The complex air pollutants emitted by industry include a wide variety of air pollutants that can not be removed under any conditions, such as gaseous substances with acidic and basic properties, or substances capable of being absorbed into a cleaning liquid such as water under special conditions Contaminants of the same kind are present. At present, incineration is required to remove gaseous substances at a high temperature, or other special treatment facilities must be installed and removed separately, thereby causing economic difficulties of industries. Table 2 shows the types of scrubbing liquids according to the exhaust gas components.

Scrubbing liquid Processable gas component Processing principle NaOH Hydrogen sulfide, methyl mercaptan, phenol, etc. Neutralization reaction NaClO Methyl disulfide, methyl sulfide Oxidation, absorption H ₂ SO ₄ Ammonia, amine, paradine Oxidation, absorption NaON Formaldehyde After neutralization reaction with organic acid Na ₂ SO ₃ Formaldehyde Changes to components absorbed in water after reaction NaClO Formaldehyde, acrolein Acrylic acid after neutralization absorption

In general, the principle of trapping particles and gaseous substances in a wet scrubber includes collision between liquid droplets and particles, contact area due to diffusion of fine particles, promotion of flocculation due to condensation of vapors, and particle contact with liquid film and bubbles.

In the case of conventional domestic and foreign scrubbers, it is difficult to simultaneously remove complex pollutants containing various air pollutants, and is used only for removal of gaseous pollutants having high dust and solubility. In addition, there are various drawbacks such as pressure loss, evaporation of the cleaning liquid, clogging of the nozzle due to the generation of salt, and the like, resulting in poor economic efficiency and efficiency.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vortex type wet scrubber capable of simultaneously removing particulate matter and gaseous substances, which are air pollutants discharged from a boiler and a production factory of an industrial company, with high efficiency.

In order to achieve the above-mentioned object, the present invention is characterized by comprising: a cylindrical body; A first chamber installed at one side of the main body to receive the first cleaning liquid; A second chamber installed on the other side of the main body so as to be separated from the first chamber and accommodating the second cleaning liquid; A chamber separator installed vertically to separate the first chamber and the second chamber; An inlet port connected to the first chamber on one side wall of the main body and through which a gas flow containing air pollutants flows; At least one cleaning liquid ejection opening provided at an upper portion of the first chamber and higher than the inlet, for ejecting the first cleaning liquid; A first collision plate installed between the chamber separation plate and the inlet port in a vertical direction so as to face the inlet port; A first nozzle installed on the side of the first impingement plate toward the chamber separation plate; A second impingement plate installed at a side of the chamber separator plate at a position higher than the first nozzle toward the first impingement plate; A third collision plate spaced apart from the upper end of the chamber separator plate and installed laterally so as to be connected to the upper end of the first collision plate; A fourth collision plate that is connected to the second chamber side end of the third collision plate and is disposed in the vertical direction and is spaced apart from the chamber separation plate; A second nozzle installed on a side surface of the fourth collision plate in a direction of a sidewall of the second chamber side of the main body; A fifth collision plate installed on the other side wall of the body toward the fourth collision plate at a position higher than the second nozzle; A demister filter installed at an upper portion of the main body at a position higher than the third collision plate; An outlet provided at an upper end of the main body; A first cleaning liquid inlet formed on a side wall of the first chamber of the main body; A second cleaning liquid injecting port provided on a sidewall of the second chamber side of the main body; A first cleaning liquid discharge port installed at the bottom of the first chamber side of the main body; A second cleaning liquid discharge port installed at the bottom of the second chamber side of the main body; A first level determining device connected to the first cleaning liquid inlet; And a second level determining device connected to the second cleaning liquid injection port.

In the present invention, the gas flow can be brought into contact with the first rinsing liquid sprayed from the rinsing liquid ejection opening, and the primary removal of the air pollutant can be performed.

In the present invention, the first cleaning liquid may be coated on the surface of the first impingement plate opposite to the inlet.

In the present invention, the first impingement plate may be disposed adjacent to at least one of the cleaning liquid ejection openings.

In the present invention, the gas flow can collide with the first impingement plate and secondary removal of air pollutants can be achieved.

In the present invention, the first cleaning liquid and the second cleaning liquid may have different properties.

In the present invention, the gas flow can be brought into contact with the first rinsing liquid contained in the first chamber, and the third-order removal of the air pollutant can be performed.

In the present invention, the chamber separation plate can also function as an impingement plate.

In the present invention, the chamber separation plate may consist of a vertical plate, a first inclined plate inclined toward the second nozzle, and a second inclined plate inclined toward the first nozzle, sequentially from the bottom of the main body.

In the present invention, the vertical plate of the chamber separation plate is arranged to be aligned with the outlet end of the first nozzle, and the connection point of the first inclined plate and the second inclined plate may be arranged to be located at the same height as the first nozzle.

In the present invention, the first cleaning liquid is filled in the first chamber so that only a part of the first nozzle is filled, a vortex of the first cleaning liquid is generated at the interface of the first cleaning liquid by the gas flow passing through the first nozzle, Fourth-order elimination of air pollutants can be achieved by vortexing.

In the present invention, the gas flow can collide with the second impingement plate, resulting in a fifth order elimination of air pollutants.

In the present invention, the gas flow may collide with the third impingement plate, resulting in the sixth elimination of air pollutants.

In the present invention, the first collision plate, the chamber separation plate, the third collision plate, and the fourth collision plate may be combined to form an inverted U-shaped channel.

In the present invention, the fourth impingement plate may be composed of a swash plate and a vertical plate which are sequentially inclined from the top toward the second nozzle.

In the present invention, the gas flow can collide with the fourth impingement plate, resulting in a seventh elimination of air pollutants.

In the present invention, the level of the second cleaning liquid may be higher than the level of the first cleaning liquid.

In the present invention, the gas flow can be brought into contact with the second cleaning liquid contained in the second chamber, and the eighth removal of the air pollutant can be performed.

In the present invention, the second cleaning liquid is filled in the second chamber so that only a part of the second nozzle is filled, a vortex of the second cleaning liquid is generated at the interface of the second cleaning liquid by the gas flow passing through the second nozzle, 9th-order removal of air pollutants can be achieved by vortexing.

In the present invention, the gas flow can collide with the fifth impingement plate, and 10th order removal of air pollutants can be made.

In the present invention, the demister filter can be installed over the entire width direction of the main body.

In the present invention, the first water level checking device and the second water level checking device may have a water gauge and a pressure gauge, respectively.

In the present invention, in order to simultaneously remove complex air pollutants having various characteristics, after adjusting the properties (pH, etc.) of the cleaning liquid in each of the chambers completely separated, neutralization and absorption reaction To chemically remove gaseous materials.

In the scrubber according to the present invention, after the two separated chambers are installed, the strong vortex of the cleaning liquid is generated by using the nozzles located in the respective chambers, thereby increasing the number of collisions and contact between the cleaning liquid and the air pollutants, And the removal efficiency can be increased by maximizing the existing trapping principle. In addition, since the chambers in which the respective nozzles are located are completely separated from each other, it is possible to simultaneously remove other types of air pollutants, especially complex gas phase substances, by varying the characteristics (pH, etc.) of the cleaning liquid in each chamber.

1 is a configuration diagram of a scrubber according to the present invention.
2 is a graph showing dust removal efficiency using a scrubber according to the present invention.
3 is a graph illustrating gas removal efficiency using a scrubber according to the present invention.

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

FIG. 1 is a schematic view of a scrubber according to the present invention. The scrubber according to the present invention includes a main body 1, an inlet 2, a cleaning liquid injection port 3, a first impingement plate 4, a first chamber 5, The second chamber 11, the second chamber 12, the third chamber 11, the second chamber 11, the second chamber 11, the chamber separation plate 6, the first nozzle 7, the second impingement plate 8, the third impingement plate 9, The first cleaning liquid discharge port 18 and the second cleaning liquid discharge port 18. The first cleaning liquid supply port 16 is connected to the first cleaning liquid discharge port 18 and the second cleaning liquid discharge port 18, An outlet 19, a second water level check device 20, a second washing liquid inlet 21, and the like. In the figure, arrows indicate the flow of gas.

The main body 1 is formed in a cylindrical shape and can be formed, for example, of a cylindrical shape or a polyhedron.

The inlet 2 may be provided outside the side wall of the main body 1 and may be installed on the side of the first chamber 5. A gas flow including an air pollutant to be treated can be introduced into the inlet 2.

The cleaning liquid jetting port 3 may be installed on the side of the first chamber 5 and above the inlet 2. The number of the cleaning liquid ejection openings 3 may be one or more, preferably a plurality of. The cleaning liquid jetting openings 3 may be installed in one or more jetting lines and the jetting lines may extend outside the main body 1. [ The cleaning liquid ejection openings 3 may be configured in the form of a nozzle, and the first cleaning liquid can be ejected through the cleaning liquid ejection openings 3 in the gas inflow region.

The incoming gas flow contacts (collides) with the first cleaning liquid injected from the cleaning liquid ejection opening 3 provided at the upper portion of the inlet 2 before reaching the first collision plate 4, Contaminants (gaseous, particulate, etc.) can be removed first.

The first impingement plate 4 may be installed on the side of the first chamber 5 and may be installed on the lower side of the third impingement plate 9. The first impingement plate 4 may be connected to the third impingement plate 9 at an angle of 90 ± 20, for example, perpendicular or inclined. The first impingement plate 4 is arranged so as to face the inlet 2, for example at an angle of 90 +/- 20 with the inlet 2, so that the inflow gas flow collides against the first impingement plate 4 can do. The first impingement plate 4 may extend downward to the vertical plate of the chamber separator plate 6 and the lower portion of the first impingement plate 4 may be submerged in the first rinsing liquid contained in the first chamber 5 have.

The first cleaning liquid may be coated on the surface of the first impingement plate 4 facing the inlet 2. The coating of the first cleaning liquid can be carried out through injection from the cleaning liquid ejection opening 3 or through other methods. To this end, the first impingement plate 4 may be disposed adjacent to at least one of the cleaning liquid ejection openings 3. The coating of the first rinsing liquid can be carried out before the introduction of the gas and also continuously after the introduction of the gas.

The air pollutants can be subjected to secondary elimination while being strongly impacted on the first impingement plate 4 coated with the first cleaning liquid after the above-mentioned first removal. The flow of the introduced gas can directly collide with the first cleaning liquid injected from the cleaning liquid ejection opening 3 or directly collide with the first collision plate 4 coated with the first cleaning liquid so that the contaminant removal efficiency can be increased. In addition, in the conventional cleaning apparatus, the inlet is narrow and complicated, and the pressure drop at the inlet port is large, but the reduction of the inlet pressure can be minimized in the scrubber of the present invention.

According to the present invention, unlike the prior art, the cleaning liquid is partially sprayed in the gas inflow region to directly remove the air pollutant, and the cleaning liquid is coated on the surface of the first impingement plate 4 to increase the removal efficiency of the air pollutant have.

The first chamber 5 can be installed on one side of the main body 1 and separated from the second chamber 11 by the chamber separation plate 6 and can receive the first cleaning liquid. The boundary of the first chamber 5 may be a bottom portion of the main body 1 downward and a third collision plate 9 on the top and a side wall of the main body 1 and the chamber separator 6 on the right and left sides. The first chamber 5 is connected to the inlet 2 so that the gas flow can flow into the first chamber 5.

The composition of the first cleaning liquid may be different from that of the second cleaning liquid, or the properties (pH, etc.) may be different. For example, a basic cleaning liquid may be used as the first cleaning liquid, and an acidic cleaning liquid may be used as the second cleaning liquid. Thus, by using two types of cleaning liquids having different properties, it is possible to simultaneously remove other types of air pollutants, particularly complex gas-phase materials. As described above, according to the present invention, the technique of completely dividing the chamber to change the characteristics of the cleaning liquid can be used.

In the first chamber 5, a first cleaning liquid for removing a specific gas or particulate contamination can be charged, and the particulate matter and the specific gaseous material are contacted with the first cleaning liquid after the above-described second cleaning, Lt; / RTI >

The chamber separator plate 6 serves to separate the first chamber 5 and the second chamber 11, and can also function as a collision plate. The chamber separator plate 6 may be disposed further away from the first impingement plate 4 with respect to the inlet 2. The chamber separator plate 6 can be elongated from the bottom of the main body 1 to the upper side and the upper end can be extended to be located at approximately the same height as the inlet 2. The chamber separator plate 6 may be spaced apart from the first impingement plate 4 by a predetermined distance so that a flow path may be formed between the first impingement plate 4 and the chamber separator plate 6. [ Further, the upper end of the chamber separator plate 6 may be bent in an inverted U-shape or V-shape for smooth flow of gas or the like.

The chamber separation plate 6 is folded one or more times on the way so that the direction can be changed. As illustrated in the figure, the chamber separation plate 6 is composed of a vertical plate, a first inclined plate, and a second inclined plate sequentially from the bottom . The first swash plate and the second swash plate can be connected in a substantially V-shape with their inclination directions reversed. The first swash plate is inclined to the opposite side of the first nozzle 7 and the second swash plate is inclined toward the first nozzle Can be. The inclination angles of the first swash plate and the second swash plate may be independently +/- 50 degrees with respect to the vertical plate. The vertical plate may be arranged so as to be aligned with the outlet end of the first nozzle 7 and the connection point of the first inclined plate and the second inclined plate may be arranged to be located at the same height as the first nozzle 7. In this way, when a part of the chamber separator plate 6 is formed of a swash plate, it is possible to effectively prevent the loss of the first cleaning liquid while avoiding interference with the first nozzle 7, and to improve the removal efficiency by collision.

The first nozzle 7 may be installed on the first impingement plate 4 and may preferably be installed under the first impingement plate 4 so as to protrude horizontally from the first impingement plate 4 . The first nozzle 7 can be installed on the side opposite to the surface of the first impingement plate 4 facing the inlet 2, that is, toward the chamber separator plate 6 without looking at the inlet 2 . The first cleaning liquid can be filled in the first chamber 5 so that only a part of the first nozzle 7 is filled so that the gas flow passing through the first nozzle 7 causes the first cleaning liquid The vortex can be effectively generated. In the prior art nozzle, gas injection was the main role, but in the present invention, the vortex generation of the cleaning liquid mainly plays a role.

The first nozzle 7 generates an effective vortex for the first cleaning liquid filled in the first chamber 5 to increase the contact area and the contact time between the air pollutant and the first cleaning liquid, This is the part where the fourth order elimination plays a role of maximizing. The gas flow descends along the first impingement plate 4 and collides with the interface of the first rinsing liquid filled in the first chamber 5 and then passes through the first nozzle 7 and passes through the first nozzle 7 Fourth-order removal of contaminants can be achieved.

The second impingement plate 8 may be installed on the chamber separator plate 6, and preferably on the second swash plate of the chamber separator plate 6. [ The second impingement plate 8 can be disposed toward the first impingement plate 4 and can be disposed at a higher position than the first nozzle 7. [ The second impingement plate 8 may be arranged to be inclined downward with respect to the horizontal plane, and may be arranged to be perpendicular to the second swash plate of the chamber separator plate 6. [ The length of the second impingement plate 8 may be 30 to 70% of the distance between the first impingement plate 4 and the chamber separation plate 6. [

The second impingement plate 8 can also function as a plate separating the gas and the liquid. The second impingement plate 8 (the first liquid / liquid separation plate) can collide with the fine particles of the cleaning liquid generated by the vortex generated in the first nozzle 7, thereby preventing the loss of the cleaning liquid. In addition, air pollutants not removed by the swirling flow of the first nozzle 7 may collide with the second impingement plate 8, resulting in fifth-order removal. The gas flow passing through the first nozzle 7 is blocked by the cleaning liquid at the bottom and is turned upwards and may collide with the second swash plate of the chamber separator plate 6 together with the second impingement plate 8. [

The third impingement plate 9 can be disposed at a higher position than the inlet 2, the cleaning liquid ejection opening 3, the chamber separator plate 6 and the second impingement plate 8, . The third impingement plate 9 is connected to the first impingement plate 4 and the fourth impingement plate 10 respectively and the first impingement plate 4 can be connected at a substantially central portion of the third impingement plate 9 , And the fourth collision plate 10 may be connected to the distal end of the third collision plate 9. One of the third impingement plates 9 (right side in the drawing) can act as an upper boundary plate of the first chamber 5 on the basis of the first impingement plate 4, (Left side in the drawing) can act as a collision plate. The third impingement plate 9 may be spaced apart from the upper end of the chamber separator plate 6 to form a flow path.

The third impact plate 9 (second liquid / liquid separation plate) prevents the cleaning liquid fine particles passing through the second impingement plate 8 (first liquid / liquid separation plate) from passing to the next portion, It is the place where the 6th elimination is made by causing another collision of materials. The gas flow that has passed through the second impingement plate 8 rises upward along the flow path formed between the first impingement plate 4 and the chamber separation plate 6 and collides against the third impingement plate 9, This is switched back down.

The fourth impingement plate 10 may extend downward at the distal end of the third impingement plate 9 and extend at a lower end thereof so as to be positioned at substantially the same height as the first nozzle 7. The fourth collision plate 10 is disposed further away from the chamber separation plate 6 with respect to the inlet port 2 and is disposed at a certain distance from the chamber separation plate 6, A flow path can be formed between the plates 10. The U-shaped flow path may be formed by combining the first impingement plate 4, the chamber separator plate 6, the third impingement plate 9, and the fourth impingement plate 10, The retention time of the gas is increased by the long flow path formed in the middle, and the removal efficiency can be further improved.

The fourth collision plate 10 may be folded one or more times in the middle to be redirected. As illustrated in the figure, the fourth collision plate 10 may be composed of a slope plate and a vertical plate sequentially from the top. The swash plate can be inclined in a direction away from the first collision plate 4 and the chamber separator plate 6. [ The inclination angle of the swash plate may be +/- 50 degrees with respect to the vertical plate. The connection point between the vertical plate and the swash plate may be disposed at a position higher than the upper end of the chamber separator plate 6. [ In this way, when a part of the fourth collision plate 10 is constituted by the inclined plate, the efficiency of removing collision can be improved. To improve removal efficiency, one or more additional impingement plates may be formed on the vertical plate as illustrated in the drawings.

In the fourth impingement plate 10, the air pollutants that have not been removed during the process from the first to the sixth removal may be collided, resulting in the seventh elimination. The gas flow that has been turned downward by the third collision plate 9 collides with the fourth collision plate 10 and the chamber separation plate 6 to cause the chamber separation plate 6 and the fourth collision plate 10 And downward along the flow path between the upper and lower portions.

The second chamber 11 can be installed on the other side of the main body 1 and can be separated from the first chamber 5 by the chamber separation plate 6 and can receive the second cleaning liquid. The boundary of the second chamber 11 is divided into a bottom portion of the main body 1 downward and a third collision plate 9 and a fifth collision plate 13 on the top, And may be the impingement plate 10 and the chamber separator plate 6. The composition of the second cleaning liquid may be different from that of the first cleaning liquid, or may differ in properties (pH, etc.). The level of the second cleaning liquid may be higher than that of the first cleaning liquid to improve the removal efficiency.

The second chamber 11 is filled with a second cleaning liquid which is different from the first cleaning liquid filled in the first chamber 5 so that a specific gaseous material different from the gaseous material removed from the first chamber 5 Or by the contact of the particulate matter.

The second nozzle 12 may be installed on the fourth impingement plate 10 and may be installed to protrude horizontally from the fourth impingement plate 10 on the lower part of the fourth impingement plate 10 . The second nozzle 12 may be installed on the opposite side of the face of the fourth collision plate 10 facing the chamber separation plate 6, that is, in the same direction as the first nozzle 7. The second nozzle 12 may be disposed at a position higher than the first nozzle 7. The second cleaning liquid can be filled in the second chamber 11 so that only a part of the second nozzle 12 is immersed so that the gas passing through the second nozzle 12 The vortex of the second cleaning liquid can be effectively generated at the interface of the second cleaning liquid by the flow.

In the second nozzle 12, by generating a vortex of the second cleaning liquid filled in the second chamber 11, the ninth removal can occur in the same manner as the first nozzle 7. The gas flow descends along the flow path between the chamber separator plate 6 and the fourth impingement plate 10 and then collides with the interface of the second cleaning liquid filled in the second chamber 11 and then passes through the second nozzle 12 And 9th order removal of air pollutants can be performed while passing through the second nozzle 12. [

The fifth impingement plate 13 may be installed on the side wall of the main body 1. [ The fifth collision plate 13 may be disposed toward the fourth collision plate 10 and may be disposed at a position higher than the second nozzle 12. [ The fifth collision plate 13 may be arranged to be inclined downward with respect to the horizontal plane. The fifth collision plate 13 is folded one or more times on the way so that the direction change can be made. As illustrated in the figure, the fifth collision plate 13 is sequentially moved from the side wall of the main body 1 to the first inclined plate 2 swash plate. The second swash plate may be inclined downwardly from the first swash plate. The length of the fifth collision plate 13 may be 30 to 70% of the interval between the side wall of the main body 1 and the fourth collision plate 10. [

Like the second impingement plate 8 (first liquid / liquid separation plate), the fifth impact plate 13 (third liquid / liquid separation plate) can reduce the loss of the cleaning liquid by collision with the cleaning liquid fine particles , And 10th order elimination can be performed by collision with air pollutants not removed from the second nozzle 12. [ The gas flow passing through the second nozzle 12 is blocked by the rinsing liquid at the bottom and is turned upwards and may collide with the side wall of the main body 1 together with the fifth impingement plate 13. [

The demister filter 14 may be disposed broadly over the entire width of the main body 1 at the upper portion of the main body 1 and at a higher position than the third impingement plate 9. [ The demister filter 14 serves to remove fine particles of the cleaning liquid which have not been removed from the fifth impingement plate 13 (third liquid / liquid separation plate). The volume (or area) of the demist filter 14 is much wider than that of the conventional cleaning and dust collecting apparatus, so that the leakage loss of the cleaning liquid and the reduction of the system pressure can be minimized. At this time, it is possible to further remove air pollutants contained in the cleaning liquid. The gas flow that has passed through the fifth collision plate 13 rises along the flow path formed between the side wall of the main body 1 and the fourth collision plate 10 and then flows into the demister filter 14. [ There is no space between the third collision plate 9 and the demister filter 14, so that a relatively large space can be formed.

The discharge port 15 may be installed outside the upper end of the main body 1, preferably at the upper center side. Clean air can be finally discharged to the discharge port 15 after air pollutants are removed from the scrubber apparatus.

The first cleaning liquid injection port 16 may be installed outside one side wall of the main body 1 where the inlet port 2 is disposed and may be installed at a position lower than the inlet port 2 and at a position corresponding to the first nozzle 7. [ . The first cleaning liquid injection port 16 (first water level control unit) injects the first cleaning liquid into the first chamber 5 and controls the loss of the first cleaning liquid when the first cleaning liquid is lost.

The first level determining device 17 may be connected to the first cleaning liquid inlet 16 and may extend outside the first cleaning liquid inlet 16. The first water level confirming device 17 may have a first level gauge (first level gauge) for confirming the level and a first pressure gauge (first pressure gauge) for confirming the pressure. The first water level determining device 17 (pressure gauge and pressure gauge) confirms the level of the first cleaning liquid to be filled in the first chamber 5 and measures the pressure at the inlet port 2 during the scrub operation, So that the pressure loss can be confirmed. The replacement period of the cleaning liquid may be set to the magnitude of the measured pressure loss.

The first cleaning liquid discharge port 18 may be provided outside the lower end of the main body 1 and may be connected to the first chamber 5. The first cleaning liquid discharge port 18 may be used to remove the first cleaning liquid in the first chamber 5.

The second cleaning liquid discharge port 19 may be provided outside the lower end of the main body 1 and may be connected to the second chamber 11. The second cleaning liquid discharge port 19 can be used to remove the second cleaning liquid in the second chamber 11.

The second level determining device 20 may be connected to the second cleaning liquid inlet 21 and may extend outside the second cleaning liquid inlet 21. The second water level checking apparatus 20 may have a second person (second water level gauge) for confirming the water level and a second pressure gauge (second pressure gauge) for confirming the pressure. The second water level determining device 20 (pressure gauge and pressure gauge) confirms the level of the second rinsing liquid filled in the second chamber 11, measures the pressure at the discharge port 15 during the scrub operation, So that the pressure loss can be confirmed. The replacement period of the cleaning liquid may be set to the magnitude of the measured pressure loss.

The second cleaning liquid injection port 21 may be provided outside the other side wall of the main body 1 in which the second chamber 11 is disposed and may be installed at a position corresponding to the second nozzle 12. The second cleaning liquid injection port 21 (second water level control part) injects the second cleaning liquid into the second chamber 11 and controls the loss of the second cleaning liquid when the second cleaning liquid is lost.

1, since the scrubber of the present invention is completely divided into the first chamber 5 located at the inlet 2 portion and the second chamber 11 located at the outlet 15 portion, So that the cleaning liquid can be used. It is a major feature of the present invention that the physicochemical properties of the cleaning liquid can be controlled or differentiated for each chamber to enable simultaneous treatment and efficient treatment of air pollutants having different characteristics.

Further, before the gas flow reaches the first collision plate 4, the air pollutant efficiently collides with the cleaning liquid injected from the cleaning liquid ejection opening 3, thereby enhancing the removal efficiency of the air pollutant.

Also, in order to improve the treatment efficiency of the air pollutant at the inflow region (inlet side) of the gas flow, the first impingement plate 4 may be coated with the cleaning liquid, thereby inducing direct contact between the air pollutant and the cleaning liquid.

Further, by designing the portion into which the air pollutant flows (the space of the first chamber 5) differently from the conventional scrubber, it is possible to induce the minimum pressure reduction in the inflow region of the gas flow.

In addition, the installation area of the demister filter 14 is widened to reduce the loss of the cleaning liquid and facilitate the movement of the air from which the air pollutants are removed, thereby reducing the pressure loss.

In addition, by providing the first cleaning liquid inlet 16 (first liquid level controller) and the second cleaning liquid inlet 21 (second liquid level controller), the loss of the cleaning liquid mist generated together with the vortex is detected, Adjustment can be made continuously.

Further, the pressure loss can be grasped continuously through the first water level confirming device 17 (first pressure gauge) and the second water level verifying device 20 (second pressure gauge), so that the cleaning fluid changing period can be easily diagnosed , It is possible to remove the optimized air pollutant and economize the operation of the apparatus.

[Experimental Example]

The prototype of the scrubber of the present invention was fabricated to confirm the removal efficiency of the actual dust and the composite gas. The flow rate of the gas flowing into the scrubber device and the concentration of the dust are designated as conversion elements. The first chamber is adjusted to pH 4.0 ± 0.2 and the second chamber is adjusted to pH 10 ± 0.2. (Ammonia and hydrogen sulfide) at the same time. As can be seen from the results, the dust removal efficiency is very high, which is more than 93% ~ 99%. This is a result far exceeding the average removal efficiency of conventional wet scrubbers. The removal efficiency of ammonia in the composite gas was more than 90% and the removal efficiency of hydrogen sulfide was more than 85%. In the case of ammonia gas, although the solubility in water is very high, based on the pH control of the water in this experiment, it shows high removal efficiency together with dust removal. In experiments using a single scrubbing solution (both pH chambers were applied at the same pH), the removal rate for hydrogen sulfide was 75% or less. However, in this experiment using a combined gas containing dust and ammonia, the removal efficiency of hydrogen sulfide was 85% Removal efficiency. It is understood that the pH of the present invention is controlled and the removal efficiency is higher due to various factors such as adsorption with dust and the like.

FIGS. 2, 3 and 3 show experimental results under the experimental conditions of a flow rate of 9.2 m 3 / min and an inflow dust concentration of 108.7 mg / min.

Cumulative removal efficiency 99.43% Gas Removal Efficiency (Ammonia) 93.80% Gas removal efficiency (hydrogen sulfide) 85.15%

As can be seen from the results of this experiment, the scrubber of the present invention is not only capable of removing dust, which is a general role, but also has various characteristics, particularly, an air pollution abatement device capable of simultaneously removing complex gas- As shown in FIG. In addition, since it is possible to carry out the removal simultaneously, it is unnecessary to install different treatment apparatuses required for the removal of each air pollutant, thereby achieving excellent air pollution It would be possible to use it as a material processing device.

1: Body
2: inlet
3:
4: First collision plate
5: First chamber
6: chamber separation plate
7: First nozzle
8: Second collision plate
9: Third collision plate
10: Fourth collision plate
11: Second chamber
12: Second nozzle
13: fifth collision plate
14: Demister filter
15: Outlet
16: First cleaning liquid inlet
17: First level check device
18: First cleaning liquid outlet
19: Second cleaning liquid outlet
20: Second water level check device
21: Second cleaning liquid inlet

Claims (22)

A cylindrical body;
A first chamber installed at one side of the main body to receive the first cleaning liquid;
A second chamber installed on the other side of the main body so as to be separated from the first chamber and accommodating the second cleaning liquid;
A chamber separator installed vertically to separate the first chamber and the second chamber;
An inlet port connected to the first chamber on one side wall of the main body and through which a gas flow containing air pollutants flows;
At least one cleaning liquid ejection opening provided at an upper portion of the first chamber and higher than the inlet, for ejecting the first cleaning liquid;
A first collision plate installed between the chamber separation plate and the inlet port in a vertical direction so as to face the inlet port;
A first nozzle installed on the side of the first impingement plate toward the chamber separation plate;
A second impingement plate installed at a side of the chamber separator plate at a position higher than the first nozzle toward the first impingement plate;
A third collision plate spaced apart from the upper end of the chamber separator plate and installed laterally so as to be connected to the upper end of the first collision plate;
A fourth collision plate which is vertically connected to the third chamber-side end of the third collision plate and is spaced apart from the chamber separation plate;
A second nozzle installed on a side surface of the fourth collision plate in a direction of a sidewall of the second chamber side of the main body;
A fifth collision plate installed on the other side wall of the body toward the fourth collision plate at a position higher than the second nozzle;
A demister filter installed at an upper portion of the main body at a position higher than the third collision plate;
An outlet provided at an upper end of the main body;
A first cleaning liquid inlet formed on a side wall of the first chamber of the main body;
A second cleaning liquid injecting port provided on a sidewall of the second chamber side of the main body;
A first cleaning liquid discharge port installed at the bottom of the first chamber side of the main body;
A second cleaning liquid discharge port installed at the bottom of the second chamber side of the main body;
A first level determining device connected to the first cleaning liquid inlet; And
And a second level determining device connected to the second cleaning liquid inlet,
The first cleaning liquid is coated on a surface of the first impingement plate opposite to the inlet,
The first impingement plate is disposed adjacent to at least one cleaning liquid ejection opening,
The chamber separator comprises a vertical plate, a first inclined plate inclined toward the second nozzle, a second inclined plate inclined toward the first nozzle,
The connecting plate connecting the first inclined plate and the second inclined plate of the chamber separating plate is arranged to be positioned at the same height as the first nozzle and the vertical plate of the chamber separating plate is arranged to be aligned with the outlet end of the first nozzle,
The second impingement plate is installed so as to be perpendicular to the second swash plate of the chamber separating plate, is inclined downward with respect to the horizontal plane, has a length of 30 to 70% of the interval between the first impingement plate and the chamber separating plate, It also functions as a liquid / liquid separation plate for separating liquid,
The fourth impingement plate is composed of a swash plate and a vertical plate which are sequentially inclined from the top toward the second nozzle and a connection point between the vertical plate and the swash plate of the fourth impingement plate is disposed at a position higher than the upper end of the chamber separating plate Scrubber.
The method according to claim 1,
Wherein the gas flow is in contact with the first rinsing liquid sprayed from the rinsing liquid ejection orifice and the primary removal of the air pollution material is carried out.
delete delete The method according to claim 1,
Characterized in that the gas flow collides with the first impingement plate and a second removal of the air pollutant takes place.
The method according to claim 1,
Wherein the first cleaning liquid and the second cleaning liquid have different constants.
The method according to claim 1,
Wherein the gas flow is in contact with the first rinsing liquid contained in the first chamber, and thirdly the air pollutant is removed.
The method according to claim 1,
And the chamber separation plate also functions as an impingement plate.
delete delete The method according to claim 1,
The first cleaning liquid is filled in the first chamber so as to be immersed in only a part of the first nozzle and the vortex of the first cleaning liquid is generated at the interface of the first cleaning liquid by the gas flow passing through the first nozzle, Characterized in that fourth order removal of the air pollutant is carried out.
The method according to claim 1,
Characterized in that the gas flow collides with the second impingement plate and a fifth order removal of the air pollutant occurs.
The method according to claim 1,
Characterized in that the gas flow collides with the third impingement plate, resulting in a sixth removal of air pollutants.
The method according to claim 1,
Wherein the first collision plate, the chamber separation plate, the third collision plate and the fourth collision plate are combined to form an inverted U-shaped flow passage.
delete The method according to claim 1,
Characterized in that the gas flow collides with the fourth impingement plate and a seventh elimination of air pollutants occurs.
The method according to claim 1,
And the level of the second cleaning liquid is higher than the level of the first cleaning liquid.
The method according to claim 1,
Wherein the gas flow is in contact with the second cleaning liquid contained in the second chamber, and the eighth removal of the air pollutant is performed.
The method according to claim 1,
The second cleaning liquid is filled in the second chamber so as to be immersed in only a part of the second nozzle and a vortex of the second cleaning liquid is generated at the interface of the second cleaning liquid by the gas flow passing through the second nozzle, Characterized in that ninth-order removal of air pollutants is carried out.
The method according to claim 1,
Characterized in that the gas flow collides with the fifth impingement plate and the 10th order removal of the air pollutant takes place.
The method according to claim 1,
Wherein the demister filter is installed over the entire width direction of the main body.
The method according to claim 1,
Wherein the first water level checking device and the second water level checking device each have a water gauge and a pressure gauge.

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