KR102129824B1 - circling flow two-stage medicine liquid cleansing tower using spray nozzles - Google Patents

Abstract

The present invention relates to a two-stage swirl flow chemical liquid washing tower using a spray nozzle by a two-stage chemical liquid, in which a fine injection nozzle of which an inlet side is connected to a washing liquid tank is mounted on a downstream end of portions of an introduction pipe for introducing malodorous gas into a body housing to communicate with the introduction pipe and an outlet of the introduction pipe is opened to be along a tangent line of the cylindrical body housing.

Description

Circling flow two-stage medicine liquid cleansing tower using spray nozzles

The present invention relates to a device for removing odors, and more particularly, to a swirling two-stage chemical liquid cleaning tower using a spray nozzle for removing odors generated from aversion facilities and the like in two steps.

In general, gases generated in disgust facilities and the like generate odor.

As a method of removing the odor gas, there are a method of removing odors by installing a plurality of nozzles in a deodorization apparatus and spraying water containing a odor introduced into a deodorization tank in a hate facility to remove the odor (water washing method). A method in which an adsorbent layer such as activated carbon, silica gel, and zeolite is disposed in a bath to adsorb malodorous substances (active carbon adsorption method) or a method in which a specific microbial layer is disposed in place of the adsorbent to cause the microorganism to decompose malodor generating substances (microbial contact) Method) and the like.

However, the above methods have limitations in removing odors containing acid and alkali components, and there is a consideration to remove the odor using a single cleaning solution instead of water in the washing method, but this also removes only one of the acid and alkali components. Therefore, it has a problem that all odor components cannot be removed.

An apparatus for removing odors for solving such problems is disclosed in Korean Patent Registration No. 10-0794208.

The disclosed malodor removal apparatus is arranged in parallel two deodorization tanks, while passing through the second deodorization tank via the first deodorization tank while spraying the acidic cleaning solution to the malodor gas introduced into the first deodorization tank to the malodor gas It neutralizes the contained alkali components and neutralizes the acidic components contained in the odor gas by spraying the alkali cleaning solution to the odor gas introduced into the second deodorization tank to remove the odor. However, the deodorization tank is arranged in parallel to enlarge the deodorization device. And causing an increase in the occupied space, and the object to be treated is a gas and the neutralizing agent is liquid, so there is a limit to meet and react with each other in accordance with the flow rate of the object to be forced to flow by the deodorizing fan, and there is a problem that the odor removal rate is low. Have

An apparatus for removing odors for solving this problem is disclosed in Patent Registration No. 154602, which is filed and registered by the applicant.

The disclosed malodor removing device sequentially sprays an acidic cleaning solution and an alkali cleaning solution to the malodorous gas flowing in one standing deodorization tank, but the acidic cleaning solution is used to neutralize the alkaline components contained in the malodorous gas in the acidic cleaning solution. In the reaction section that activates the neutralization reaction by making the gas bubbles and neutralizes the acidic components contained in the malodor gas with the alkaline cleaning solution, the neutralization reaction is activated by making the malodor gas bubbles into the alkaline cleaning solution to activate the neutralization reaction. By performing the reaction and the neutralization reaction with the alkaline cleaning solution in one standing deodorization tank, the size of the malodor removal device is reduced, while the neutralized reaction with the acidic cleaning solution neutralizes the odor gas during the neutralization reaction with the alkaline cleaning solution. By making it into a state to activate the neutralization reaction, it is possible to increase the odor removal efficiency than the conventional one.

However, the disclosed odor removing device is a bubble of the odor gas is accumulated in a small height in the first porous reaction plate and the acidic cleaning liquid and the second porous reaction plate is flying to the top of the alkaline cleaning liquid is blown directly above the contact time for these cleaning liquid There is a problem that the neutralization reaction cannot be sufficiently performed because it is short.

To prevent this, if the acidic cleaning solution is stacked higher than the prior art on the first porous reaction plate and the alkaline cleaning solution is stacked higher than the conventional on the second porous reaction plate, the weight of the cleaning liquid is increased and the cleaning liquid passes through the through hole of the porous reaction plate. It has the problem of being drained.

In addition, in the disclosed malodor removal apparatus, when malodor removal is performed, salts (H2S, etc.) generated during the neutralization reaction are accumulated on the first and second porous reaction plates, and the malodor of the gas to be treated is removed. A more serious odor occurs in the odor removal device, and in order to prevent this, the odor removal device is periodically stopped and an awkward operation is performed by the operator to remove it while inhaling the odor.

An apparatus for removing odors for solving this problem is disclosed in Korean Patent Registration No. 1912305, which is filed and registered by the present applicant.

In the disclosed malodor removal apparatus, a plurality of conch shell-like parts for generating vortices flowing through their through holes are mounted on the first and second porous reaction plates, and formed on one side of the first and second porous reaction plates. A plurality of salt washing nozzles for transferring the salts formed in the first and second porous reaction plates toward the wall portion are mounted on the main body housing, thereby increasing the contact time between the bubbles of the odor gas and the cleaning solution for neutralization, and the odor removal efficiency. It can be significantly increased than before, and after the operation of the odor removal device is stopped, the washing surface is sprayed through the plurality of salt washing nozzles, and the outer surfaces of the first and second porous reaction plates and the plurality of turban shells for generating vortices. The salt attached to the first and second porous reaction plates converge on the wall formed on one side, and flows over the wall to supply to the acidic cleaning liquid tank and the alkaline cleaning liquid tank, so that the worker has a narrow feeling and does not enter the odor removal device inside. Salt could also be easily removed.

However, in the disclosed odor removal device, the first cleaning liquid of the first cleaning liquid tank and the second cleaning liquid of the second cleaning liquid tank are sprayed by the plurality of nozzles to the first and second neutralization reaction units, and then to the first cleaning liquid tank and the second cleaning liquid tank. Since it is a circulating type to be returned, salts generated during the neutralization reaction are also circulated, so that the plurality of nozzles have a large diameter to prevent clogging of the plurality of nozzles.

When the plurality of nozzle diameters are large, there is less atomization of the first cleaning liquid and the second cleaning liquid sprayed from the plurality of first cleaning liquid injection nozzles and the second cleaning liquid injection nozzle, thereby reducing the neutralization reaction efficiency with odor gas. Have

In addition, since the outlet of the introduction pipe introducing the odor gas into the body housing is opened toward the wall portion facing the outlet of the introduction pipe among the wall portions of the body housing, the odor gas introduced into the body housing through the introduction pipe faces the The noise is generated by hitting the wall There is a problem in that the flow of the odor gas is drifted, and the contact with the cleaning liquid is prevented.

The present invention has a problem in solving the above problems.

In the present invention, a micro-injection nozzle having an inlet side connected to a cleaning liquid tank at a downstream end of parts of the inlet pipe which introduces odor gas into the main body housing is installed to flow with the inlet pipe, and the outlet of the inlet pipe is cylindrical The above problem can be solved by providing a odor removing device using a two-stage chemical liquid opened to conform to the tangent of the main body housing.

The present invention, by the problem solving means as described above, just before the odor gas is introduced into the main body housing through the introduction tube by spraying fine chemicals finer than before to increase the activation of the reaction with the odor gas at the same time , The pure chemical liquid and the odor gas discharged from the introduction pipe can be moved along the inner surface of the main body housing, thereby increasing the reaction time between the pure chemical liquid and the odor gas, thereby increasing the neutralization efficiency. Noise is reduced by not hitting the wall and The contact between the odor gas and the cleaning liquid can be made uniform.

1 is a front view of a two-stage chemical cleaning tower with swirl flow using the spray nozzle of this embodiment,
Figure 2 is a side view of Figure 1,
3 is a detailed view of the porous reaction plate of the first neutralization reaction part of FIG. 1,
FIG. 4 is a plan view showing a pattern of a plurality of vortex generating conch shells mounted on the porous reaction plate of the neutralization reaction unit of FIG. 1.
Figure 5 is a perspective view of the seashell shape for vortex generation of Figure 4, and
6 is a cross-sectional plan view showing a connection relationship between the downstream end of the introduction pipe of FIG. 2 and the main body housing.

Hereinafter, a swirling two-stage chemical cleaning tower using a spray nozzle of an embodiment according to the present invention will be described in detail with reference to FIGS. 1 to 2.

In FIG. 1, a swirling two-stage chemical cleaning tower using a spray nozzle of the present embodiment is indicated as 100.

The swirl flow two-stage chemical cleaning tower 100 using the spray nozzle includes, for example, a deodorizing fan 1 having a suction side connected to an odor generating source not shown, such as a digester; A first cleaning liquid tank 2 and a second cleaning liquid tank 3 mounted adjacent to the base in parallel; A body housing 4 of a cylindrical shape standing on the first washing liquid tank 2 and the second washing liquid tank 3; The first neutralization reaction unit that is built in the lower end of the main housing 4 and connected to the discharge side of the deodorization fan 1 so as to be distributed to the first neutralization reaction unit 10. (10) a second neutralization reaction unit 20 built into the main body housing 4 above; Radix separation demister (5) embedded in the body housing (4) above the second neutralization reaction unit (20); An exhaust port 6 provided at an upper end of the main body housing 4; A first washing liquid circulation pump 7 having a suction side connected to the first washing liquid tank 2 and a discharge side connected to the first neutralization reaction unit 10; And a second washing liquid circulation pump 8 having a suction side connected to the second washing liquid tank 3 and a discharge side connected to the second neutralization reaction unit 20.

In the first neutralization reaction section 10, a drain line 11a is connected to the first washing liquid tank 2 in a state of being embedded in the lower end of the main body housing 4, and the deodorizing fan 1 A hopper 11 having an upper end connected to the discharge side of the; A porous reaction plate 12 covering the upper portion of the hopper 11; A wall portion 13 formed by standing on one side of the upper surface of the porous reaction plate 12; A first cleaning liquid circulating opening 14 for circulating a first cleaning liquid flowing through the wall portion 13 into the hopper 11 by opening one side of the porous reaction plate 12; And a plurality of agents which are disposed vertically spaced relative to the porous reaction plate 12 while being connected to the discharge side of the first cleaning liquid circulation pump 7 to spray the first cleaning liquid to the porous reaction plate 12. One cleaning liquid spray nozzle (15) is included.

The second neutralization reaction unit 20 is a partition wall portion having a gradient inclined from one side to the other while being vertically spaced from the first neutralization reaction unit 10 and embedded in the main body housing 4. 21), a plurality of outlets 22 provided to circulate the first neutralization reaction unit 10 and the second neutralization reaction unit 20; A hat-shaped portion 23 provided in each of the plurality of outlets 22 so that the second cleaning liquid of the second neutralization reaction portion 20 does not collect into the plurality of outlets 22; A plurality of second washing liquid sprays which are arranged vertically spaced relative to the partition wall portion 21 while being connected to the discharge side of the second washing liquid circulation pump 8 to inject a second washing liquid into the partition wall portion 21 It includes a circulation line 26 having one end connected to the other side of the nozzle 25 and the partition wall portion 21 and the other end connected to the second cleaning liquid tank.

The porous reaction plate 12 in the first neutralization reaction section 10, as shown in Figure 3, has a plurality of fine holes 17 having a lattice pattern. When the odor gas is blown into the first neutralization reaction unit 10 by the deodorization fan 1, the odor gas occupies the plurality of micro holes 17, and is present on the porous reaction plate 12 The first cleaning liquid to be penetrated through the plurality of micro holes 17 cannot be dropped into the hopper 11, and the deodorizing fan 1 is shut down to enter the first neutralization reaction section 10. If no odor gas is blown, the first cleaning liquid present on the porous reaction plate 12 penetrates through the plurality of micro holes 17 and falls into the hopper 11.

Therefore, as shown in FIG. 4, the odor gas in the hopper 11 through the plurality of micro-holes 17 is collected by the blowing pressure of the deodorizing fan 1 on the porous reaction plate 12 first It enters into the cleaning liquid and becomes a fine bubble, so that a neutralization reaction occurs in an activated atmosphere with some of the odor components contained in the first cleaning liquid and the odor gas.

In addition, the porous reaction plate 12 is equipped with a plurality of vortex generating conch shell-shaped portion 70 in circulation with the plurality of micro-pores.

As shown in FIG. 5, the plurality of vortex generating conch shell-shaped portions 70 are opened with one side open to form a discharge port 72 and the other side is blocked.

In addition, the inner surface of the plurality of vortex generating conch shell shape portion 70, the helical portion 71 to generate a vortex from the other side to one side to the odor gas flowing through the plurality of micro holes 17 Is formed.

In addition, the plurality of vortex generating conch shell shape portion 70, a plurality of vortex generating conch shell shape portion 70 in cooperation with each other, the plurality of contiguous vortex generating conch shell shape portion 70 ), by the bubbles of the odor gas discharged from the vortex as shown in FIG. 4 in the first cleaning solution accumulated on the porous reaction plate 12 near the seashell shape portion 70 for generating a plurality of vortices adjacent to each other It is arranged in the porous reaction plate 12 in a pattern that can generate.

The swirling flow two-stage chemical cleaning tower 100 using the spray nozzle configured as described above may be operated as follows.

When the deodorizing fan 1 is operated, when the first washing liquid circulation pump 7 and the second washing liquid circulation pump 8 are operated, the first washing liquid stored in the first washing liquid tank 2 is the plurality of Sprayed toward the porous reaction plate 12 through the dog's first cleaning liquid injection nozzle 15 to accumulate on the porous reaction plate 12, and when the detained first cleaning liquid has a higher water level than the wall portion 13, the The wall portion 13 flows through the circulation hole 14 to pass through the hopper 11 and the drain line 11a to form a state of returning to the first cleaning liquid tank 2, and the second The second washing liquid stored in the washing liquid tank 3 is sprayed toward the partition wall portion 21 through the plurality of second washing liquid injection nozzles 25 and dropped onto the partition wall portion 21 to pass through the circulation line 26. It is in a state of returning to the second cleaning liquid tank (3).

In this state, the odor gas of the odor generating source flows into the hopper 11 which is the first neutralization reaction part 10 and penetrates through the porous reaction plate 12 to become bubbles, thereby forming the plurality of seashells for vortex generation. (70) is introduced into the vortex under the guidance of the helical portion (71), discharged out of the discharge port (72), and discharged from the discharge port (72) of a plurality of adjacent vortex generation conch shell-shaped portions (70). In cooperation, a plurality of vortices are generated in the first cleaning solution that is adjacent to the concave shell shape part 70 for generating a plurality of vortices, and the first cleaning solution that is collected in the porous reaction plate 12 and some components contained in the odor gas The active neutralization reaction time between them is increased than in the prior art, and the odor gas in which the active neutralization reaction has been performed escapes from the surface of the deceased first washing liquid and the first washing liquid sprayed through the plurality of first washing liquid injection nozzles 15 It reacts and is neutralized again to enter the second neutralization reaction unit 20 via the outlet 22.

The primary neutralization treatment odor gas that has entered the second neutralization reaction unit 20 is reacted with the second washing liquid sprayed through the plurality of second washing liquid injection nozzles 25 to be neutralized again to separate the water separation thermistor 5 The water contained in the secondary neutralization odor gas is removed to meet and is discharged to the outside through the exhaust port 6.

Therefore, the two-stage circulating flow cleaning tower using the spray nozzle of the above embodiment performs the neutralization reaction by the first washing liquid and the neutralization reaction by the second washing liquid in one standing deodorization tank, and the two-stage swirl flow using the spray nozzle The size of the chemical cleaning tower is reduced, but the odor gas is made into a fine bubble state during the neutralization reaction by the first cleaning solution, thereby increasing the active neutralization reaction time than in the prior art to increase the odor removal efficiency.

The second neutralization reaction unit 20 of the swirling two-stage chemical liquid cleaning tower using the spray nozzle of the embodiment, as shown in FIG. 1, as the first neutralization reaction unit 10, the porous reaction plate ( 51, the partition wall portion of the wall portion 53 formed by standing on one side of the upper surface of the porous reaction plate 51, and a second cleaning liquid that opens on one side of the porous reaction plate 51 and flows through the wall portion 53 (21) may further include a second cleaning fluid circulating port 54 to circulate into.

When the second neutralization reaction unit 20 further includes a porous reaction plate 51, a wall portion 53, a second cleaning liquid circulation port 54, and a plurality of salt cleaning nozzles 80', the second The primary neutralization-treated malodorous gas that has entered the neutralization reaction unit 20 passes through the porous reaction plate 51 to become bubbles, and the second cleaning liquid collected in the porous reaction plate 51 and the other contained in the malodorous gas. The active neutralization reaction time between some components is increased than in the prior art, and the odor gas having the active neutralization reaction escapes from the surface of the deceased second washing liquid and is sprayed through the plurality of second washing liquid injection nozzles 25 Second neutralization is carried out by reacting with the washing liquid.

The bottoms of the first cleaning liquid tank 2 and the second cleaning liquid tank 3 have gradients inclined downward toward the drain ports 2a and 3a.

The swirling two-stage chemical liquid cleaning tower using the spray nozzle configured as described above can increase the contact time between the bubbles of the odor gas and the cleaning liquid for neutralization, thereby increasing the odor removal efficiency, and the swirling two-stage chemical liquid using the spray nozzle. After the operation of the washing tower is stopped, the washing water is sprayed through the plurality of salt washing nozzles to attach the salt adhering to the outer surfaces of the porous reaction plate 12 and the plurality of turban shells 70 for vortex generation to the wall portion 13, By converging to 53) and flowing over the wall portions 13 and 53 to supply to the first cleaning tank 2 and the second cleaning tank 3, the worker does not enter the inside of the second-stage chemical cleaning tower with narrowness. Salts can also be easily removed.

The configuration and operation of the swirl flow two-stage chemical liquid cleaning tower 100 using the spray nozzle described above are roughly the same as those disclosed in Patent Application No. 1912305, which is patented and filed by the applicant.

However, the swirl flow two-stage chemical cleaning tower 100 using the spray nozzle further includes the following new configuration.

Inlet pipe (one) is circumferentially connected to the wall portion of the body housing (4) lower than the porous reaction plate (12) and higher than the hopper (11), and the other end is circulated to the discharge side of the deodorizing fan (1) ( Near the downstream end of the 200) (the downstream end in the flow direction of the odor gas), the fine first cleaning liquid injection nozzle 210 having a smaller diameter than the first and second cleaning liquid injection nozzles 15 and 25 The discharge side is connected to the introduction pipe 200 in circulation.

On the suction side of the fine first cleaning liquid injection nozzle 210, the other end of the pure cleaning liquid supply pipe 230 having one end connected to the lower end of the pure first cleaning liquid tank 220 is connected.

A pure washing liquid supply pump 240 is interposed in the middle of the pure washing liquid supply pipe 230.

The downstream end of the introduction pipe 200 is connected to the tangential direction of the inner wall of the main body 4 so that the odor gas discharged from the introduction pipe 200 flows along the lower inner circumferential wall like the airflow of a cyclone. Is open.

Therefore, the vortex gas is introduced into the first and second neutralization reaction units 10 and 20 by the swirl flow two-stage chemical cleaning tower 100 using the spray nozzle having the above-described novel configuration. It is mixed with the pure first cleaning solution which is atomized and sprayed through the first cleaning solution injection nozzle 210, while the main body housing 4 moves along the lower inner circumferential wall, and is primarily used in the first neutralization reaction part 10. Before the neutralization reaction, the neutralization reaction time and the amount of the neutralization reaction with the first washing solution can be increased by performing a preliminary neutralization reaction with the pure first washing solution.

In addition, in the conventional odor removal device, the first neutralization reaction unit 10 and the first cleaning liquid injection nozzle circulating the first cleaning liquid tank 2 are supplied with a first cleaning liquid injection nozzle 15 and a second neutralization reaction unit 20 And the second cleaning liquid injection nozzle 25 that receives the second cleaning liquid circulating in the second cleaning liquid tank 3 has solid salts formed by reacting in the first and second heavy-duty reaction units 10 and 20. The first and second cleaning liquid injection nozzles 15 and 25 are mixed with the first and second cleaning liquids and supplied to the first and second cleaning liquid injection nozzles 15 and 25 due to the solid salt. Since there is a risk of clogging, it has a large diameter to prevent clogging with the solid salt.

In the swirl flow two-stage chemical cleaning tower 100 using the spray nozzle having the above-described novel configuration, since the pure first cleaning solution without solid salt is supplied to the fine first cleaning solution injection nozzle 210, the The fine first cleansing liquid spray nozzle 210 having a smaller diameter than that of the first and second cleansing liquid spray nozzles 15 and 25 can spray a finer pure first cleansing liquid than in the prior art, so that the first cleansing liquid and the stench It can induce a more active neutralization reaction between gases .

In the above embodiment, for the first and second cleaning solutions, for example, an alkaline cleaning solution, an acidic cleaning solution, and the like can be applied selectively.

In addition, in the swirl flow two-stage chemical cleaning tower 100 using the spray nozzle having the above-described new configuration, the odor gas does not hit the wall of the body housing 4, so that noise is reduced and The contact between the odor gas and the first cleaning liquid can be made uniform.

1: Deodorizing fan, 2: First washing liquid tank, 2a: Drain opening, 3: Second washing liquid tank, 3a: Drain opening, 4: Body housing, 5: Radiation separation demister, 6: Exhaust opening, 7: First washing liquid Circulation pump, 8: Second cleaning liquid Circulation pump, 10: First neutralization reaction unit, 11: Hopper, 11a: Drain line, 12: Porous reaction plate, 13: Wall portion, 14: First cleaning liquid circulation port, 15: First Cleaning solution spray nozzle, 17: micro hole, 20: second neutralization reaction part, 21: partition wall part, 22: outlet, 23: hatched part, 25: second cleaning solution spray nozzle, 26: circulation line, 51: porous reaction Plate, 53: wall part, 54: second cleaning fluid circulation hole, 70: vortex generation conch shell shape part, 71: spiral part, 72: discharge port, 100: swirl flow two-stage chemical cleaning tower using spray nozzle, 200: introduction Tube, 210: fine first cleaning liquid spray nozzle, 220: pure first cleaning liquid tank, 230: pure cleaning liquid supply pipe, 240: pure cleaning liquid supply pump

Claims (2)

Deodorizing fan (1) with the suction side connected to the odor generating source, the first washing liquid tank (2) and the second washing liquid tank (3) mounted in parallel to the base, the first washing liquid tank (2) and the second washing liquid The main housing (4) mounted on the tank (3), the first neutralization reaction unit (10) built in the lower end of the main housing (4) and connected to the discharge side of the deodorizing fan (1), the first neutralization The second neutralization reaction unit 20 embedded in the main body housing 4 above the first neutralization reaction unit 10 so as to be circulated in the reaction unit 10, and an exhaust port provided at the upper end of the main body housing 4 ( 6), a first washing liquid circulation pump 7 having a suction side connected to the first washing liquid tank 2 and a discharge side connected to the first neutralization reaction section 10, and a suction side washing the second washing liquid It includes a second cleaning liquid circulation pump (8) connected to the tank (3) and the discharge side is connected to the second neutralization reaction unit (20),
The first neutralization reaction unit 10
A hopper (11) having a drain line (11a) connected to the first cleaning liquid tank (2) in circulation in a state built in the lower end of the main body housing (4) and having an upper end connected to the discharge side of the deodorizing fan (1). ), the porous reaction plate 12 covering the upper portion of the hopper 11, the wall portion 13 formed by standing on one side of the upper surface of the porous reaction plate 12, one side of the porous reaction plate 12 is opened The porous reaction plate 12 while being connected to the discharge side of the first cleaning liquid circulation port 14 and the first cleaning liquid circulation pump 7 that circulates the alkaline cleaning liquid flowing through the wall portion 13 into the hopper 11 ), a plurality of first cleaning liquid injection nozzles 15 arranged vertically spaced apart and spraying a first cleaning liquid to the porous reaction plate 12, and a plurality of fine holes and distribution of the porous reaction plate 12 It includes a plurality of seashell-shaped portion 70 for generating vortices mounted on the porous reaction plate 12,
The second neutralization reaction section 20
The partition wall part 21 having a gradient inclined from one side to the other while being vertically spaced apart from the first neutralization reaction part 10 and embedded in the main body housing 4, the first neutralization reaction part 10 ) And the plurality of outlets 22 provided to distribute the second neutralization reaction unit 20 to each other, and the second cleaning solution of the second neutralization reaction unit 20 does not concentrate into the plurality of outlets 22. In order to prevent the hat-shaped portion 23 provided at each of the plurality of outlets 22 and the second cleaning liquid circulation pump 8 from being connected to the discharge side, the hat-shaped portion 23 is vertically spaced apart from the arrangement. A second cleaning liquid spray nozzle 25 for spraying the second cleaning liquid in a downward direction, and one end connected to the other side of the partition wall part 21 and the other end connected to the second cleaning liquid tank 3 In a rotating flow two-stage chemical cleaning tower using a spray nozzle comprising a circulation line (26),
Inlet pipe (one) is circumferentially connected to the wall portion of the body housing (4) lower than the porous reaction plate (12) and higher than the hopper (11), and the other end is circulated to the discharge side of the deodorizing fan (1) ( In the vicinity of the downstream end of 200), the discharge side of the fine first cleaning liquid injection nozzle 210 having a smaller diameter than the diameters of the first and second cleaning liquid injection nozzles 15 and 25 is distributed to the introduction pipe 200. Connected,
On the suction side of the fine first cleaning liquid injection nozzle 210, the other end of the pure cleaning liquid supply pipe 230 having one end connected to the lower end of the pure first cleaning liquid tank 220 is connected,
A swirling two-stage chemical liquid washing tower using a spray nozzle, characterized in that a pure washing liquid supply pump (240) is interposed in the middle of the pure washing liquid supply pipe (230). According to claim 1,
The downstream end of the introduction pipe 200 is connected to the tangential direction of the inner wall of the main body 4 so that the odor gas discharged from the introduction pipe 200 flows along the lower inner circumferential wall like the airflow of a cyclone. Swirl flow two-stage chemical cleaning tower using a spray nozzle characterized in that it is opened.

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