KR100217704B1 - Dust collection method of cleaning type and its apparatus - Google Patents

Abstract

The present invention provides a dust-collecting method for cleaning polluted gases and a dust collecting apparatus thereof. The cleaning method of the polluting gas is a radially inner central portion from the inner circumferential portion of the housing 11 in front of the blowing means 20 via the inlet 1 by the blowing means 20. A suction step of radially introducing the discharge step and a discharge step of fluidly separating the suction step and discharging the clean air of the polluted air or the exhaust gas radially outward from the central portion by the blowing means 20. Includes; At least one of the suction step and the discharge step may include: a cleaning liquid spraying step of spraying the cleaning liquid into the contaminated air or exhaust gas by the cleaning liquid spray nozzle 35 to mix the foreign matter with the contaminated air or exhaust gas; And a washing liquid separating and discharging step in which the washing liquid mixed with foreign matter and contaminated air or exhaust gas collide with each other, and the washing liquid containing foreign matter flows to and discharges from the drain tank 14 connected to the housing 11. The apparatus of the present invention comprises each means for carrying out each of the above steps. As a result, in a space in which polluted air or exhaust gas is sucked and discharged by the blowing means, it is possible to clean the compact structure by the semen and circulate the cleaning liquid.

Description

Cleaning method of polluting gas and its dust collecting device

The present invention relates to a dust-collecting method for cleaning polluted gases and a dust collecting apparatus thereof, and more particularly, to clean the compact liquid by a cleaning liquid in a space in which contaminated air or exhaust gas is sucked and discharged by a blower and circulating the cleaning liquid. The present invention relates to a dust-collecting method for cleaning pollutant gas and a dust collector thereof.

In general, gas or air containing foreign substances generated in various engines, manufacturing processes, environmental pollution places and the like have heat and / or viscosity, so that their removal is not easy. Due to these characteristics, there was a limit in the selection of the gas purifier and the dust collector, and the cyclone dust collector using the centrifugal force cannot be expected to have high efficiency among the conventional methods, and the scrubber which is a cleaning dust collector has a limitation in the amount of processing gas and is operated. There are disadvantages such as high cost.

In addition, in an air conditioner, an exhaust gas purifying apparatus, and the like which purify polluted air or exhaust gas by a filter, the filter cannot be continuously washed and regenerated while directly and continuously purifying polluted air or exhaust gas. That is, in order to regenerate the filter, the purification operation of the polluted air or the exhaust gas is stopped and the filter is washed and regenerated by a separate vacuum suction means or an injection (sub-type) cleaning device as long as the filter is separated or mounted. Afterwards, the operation for purification is resumed. In particular, in the case of the general air-conditioning electrostatic precipitator, the operation for purifying is inevitable because the spraying liquid is obese when the cleaning liquid is sprayed (part).

In addition, the vacuum suction means or the silver air spray (sub) cleaning device is difficult to completely clean and can be reused temporarily, and has not been regenerated to have the life of the original filter.

Therefore, the present invention eliminates the above-described problems, and as a compact structure, it is possible to circulate and regenerate the cleaning solution continuously while simultaneously removing and cleaning foreign substances by the cleaning solution spraying contaminated air or exhaust gas directly and continuously. It is an object of the present invention to provide a method for purifying polluted gas and a device for purifying polluted gas having a capacity of treating polluted air or exhaust gas under a large capacity and poor conditions even with a small structure.

1 (a) is a front view of the cleaning type dust collector of the horizontal pollutant gas according to an embodiment of the present invention.

FIG. 1 (b) is a left side view of FIG.

FIG. 2 (a) is a right side view of FIG. 1 and FIG. 2 (b) is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view taken along the line B-B of FIG. 2 (b).

4 is a cross-sectional view taken along the line C-C of FIG. 2 (b).

5 is a cross-sectional view taken along the line D-D of FIG. 2 (b).

FIG. 6 is a cross-sectional view taken along the line I-I of FIG. 2 (b).

7 is a sectional view taken along the line F-F of FIG. 2 (b).

FIG. 8 is an enlarged view of the left part of FIG. 2 (b).

9 is an enlarged view of the right part of FIG. 2 (b).

10 (a) is a front view of the cleaning type dust collector of the vertical pollutant gas according to another embodiment of the present invention, Figure 10 (b) is a plan view thereof.

FIG. 11 (a) is a cross-sectional view taken along the line G-G of the eleventh (b), and FIG. 11 (b) is a detailed view of the circle H portion of the eleventh (a) view.

12 is a cross-sectional view corresponding to FIG. 6 of the cleaning type dust collecting device for polluting gas according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1, 1 ': exhaust gas and polluted air inlet 2, 2': clean air outlet

3, 3 ': Cleaning solution inlet (piping) 4, 4': Dirty cleaning solution passage

4a, 4a ': Cleaning liquid wire (gas blocking function) 4b: U-shaped trap (TRAP) (gas blocking function)

4c: Cleaning solution passage 5, 5 ': Dirty cleaning solution outlet (piping)

6: drain 11: housing

12, 13 side housing 14 drain tank

15: support 20: blower

21: blower impeller 22: inlet cone guide member

23: bearing 24: rotating shaft

25: blower pulley 26: motor fleece

27: motor 31: cleaning liquid supply pipe

32, 34: nozzle mounting pipe 33, 35: spray nozzle (spraying means)

41 dust collecting chamber separation plate 42 filling material fixing plate

43: upper lower dust collecting chamber separator 44: filler

51, 53: dust collector separation plate 52: filler and eliminator fixing plate

54: eliminator (separate discharge means) 55: separator

55a: bolt 55b: nut

55c: Ring 56: Cleaning liquid inflow prevention plate

In order to achieve the above object, a method of cleaning dust of a polluted gas according to an embodiment of the present invention includes radially inward from an inner circumferential portion of the housing in front of the blower through the inlet of exhaust gas or polluted air by the blower. A suction step of radially introducing the central part, and a discharge step of fluidly separating the suction step and discharging the clean air of the polluted air or the exhaust gas radially outwardly from the central part by the blowing means; To; At least one of the suction step and the discharge step may include: a cleaning liquid spraying step of spraying the cleaning liquid into the contaminated air or exhaust gas by a cleaning liquid spray nozzle to mix the foreign matter with the contaminated air or exhaust gas; And a cleaning liquid separation and discharging step of separating and discharging the cleaning liquid mixed with the foreign matter and the contaminated air or exhaust gas and flowing the cleaning liquid mixed with the foreign matter to the drain tank connected to the housing.

In this case, at least one of the suctioning step and the discharging step adds a collision scattering step in which contaminated air or exhaust gas and the cleaning liquid collide with each other by the filling materials arranged alternately to further promote the infiltration of the foreign matter and the cleaning liquid. Can be included as; The discharging step includes: washing liquid spraying step, collision scattering step, and washing liquid separating and discharging step while separating the contaminated air or exhaust gas discharged to the radially outer side by separating by the upper dust collecting chamber separating plate again through the radially inner central part. Discharging the clean air to the outlet may include: and the suction step and the discharge step may be increased or decreased in multiple stages.

In addition, the cleaning dust collector of the polluting gas according to the present invention, the exhaust gas or polluted air is radially sucked from the inner circumferential portion of the hollowing of the circular or polygonal cross-sectional structure from the front through the inlet to the radially inner central portion, Blowing means for fluidly separating the intake part from the suction part by means of a true separating plate and discharging the clean air of the polluted air or exhaust gas radially outward from the center part / installed on at least one side of the intake part and the discharge part. A cleaning liquid spray nozzle spraying the cleaning liquid on the contaminated air or exhaust gas to mix with foreign substances of the contaminated air or exhaust gas; And downstream of the spray nozzle is installed on at least one side of the suction portion and the discharge portion, the cleaning liquid mixed with foreign matter and contaminated air or exhaust gas is separated by the separation, the cleaning liquid mixed with foreign matter flows to the drain tank connected to the housing Characterized in that it comprises a cleaning liquid separation discharge means such as an eliminator.

In addition, the cleaning dust collector of the contaminated gas is further downstream of the spray nozzle 35 and installed on at least one side of the suction part and the discharge part upstream of the cleaning liquid separation and discharge means to further promote the mixing of the foreign matter and the cleaning liquid. And harmful fillers arranged staggered with each other such that the contaminated air or exhaust gas and the cleaning liquid collide and scatter as they pass therethrough; The discharge portion is separated by the upper and lower dust collecting chamber separation plate and further contaminated air or exhaust gas is discharged to the radially outward portion while passing the radially outwardly contaminated air or exhaust gas through the radially inner central portion. The spray nozzle and the filling material are installed to promote the mixing of the cleaning liquid and the spray nozzle, the filling material, and the cleaning liquid separation and discharging means to further clean the polluted air or exhaust gas discharged to the inner circumference of the upper and lower dust chamber separation plates. It can be installed downstream of the upper and lower dust collecting chamber separator: the above-described configuration can be increased or decreased in multiple stages.

At this time, the drain tank is provided separately to prevent the passage of the cleaning liquid and the contaminated air or exhaust gas between the suction and discharge portions of the polluted air or exhaust gas, and between the respective stages, or the circulation of the cleaning liquid may be circulated. It may be formed integrally with a spherical partition or contaminant wash passage.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 (a) or FIG. 9 shows a cleaning dust collector of a contaminated gas of a horizontal circular cross-section housing structure according to an embodiment of the present invention, and FIG. 10 (a) or FIG. The cleaning dust collecting device of the contaminated gas of the vertical circular cross-sectional housing structure according to another embodiment of the present invention is shown, Figure 12 is a rectangular cross-sectional housing structure which is an example of a polygonal cross-sectional housing according to another embodiment of the present invention Of the dust-collecting dust collector is shown as a sectional view corresponding to FIG.

Specifically, FIG. 1 (a) shows a front view of the cleaning dust collector of the contaminated gas of the horizontal circular cross section housing structure, and FIG. 1 (b) shows a left side view of FIG. 1 and FIG. 2 (a). Shows a right side view of FIG. In FIG. 2 (b), a cross-sectional view taken along the line AA of FIG. 2 (a) is shown as a cross-sectional view in the direction of the rotating shaft 34, which shows the overall structure of the present invention, and the lines BB, CC, and DD along the respective lengths thereof. The cross-sectional views of lines EE and FF are shown in FIG. 3 or 7 as specific cross-sectional structures. In addition, the left and right portions of FIG. 8 and FIG. 9 (b), which are cross-sectional views in the direction of the rotation axis 24, are divided and enlarged in FIG. 8 and FIG. 9 so that the overall structure of the present invention can be understood in detail.

Basically, the method for cleaning the polluted gas according to the present invention comprises a circular cross-sectional structure or a polygonal cross-sectional structure in front of the blower means 20 through the inlet 1 through the exhaust gas or polluted air by the blower means 20. A suction step radially flowing from the inner circumferential portion of the housing 11 to the radially inner central portion, and fluidly separated from the suction step and radially outwardly contaminated from the central portion by the blowing means 20 And a discharge step of discharging clean air of air or exhaust gas.

At least one of the suction step and the discharge step may include a washing liquid spraying step and a washing liquid separating and discharging step, and may further include a collision scattering step.

The cleaning liquid spraying step is a step of spraying the cleaning liquid to the contaminated air or exhaust gas by the cleaning liquid spray nozzle 35 to mix with the foreign matter of the contaminated air or exhaust gas, the cleaning liquid separation discharge step is the foreign matter in the cleaning liquid spraying step And the cleaning liquid mixed with the contaminated air or exhaust gas collide with the separating and discharging means such as the eliminator 54 to separate the cleaning liquid mixed with the foreign matter and flow into the drain tank 14 connected to the housing 11.

In addition, the collision scattering step is a step in which the contaminated air or the exhaust gas and the cleaning liquid are passed while obesity to the filling material 44 arranged alternately to further promote the mixing of the foreign matter and the cleaning liquid after the cleaning liquid spraying step.

In addition, the discharging step may be separated by the upper dust collecting chamber separation plate 43 of the discharge part, spraying the cleaning liquid, the impact scattering while passing the radially discharged contaminated air or exhaust gas through the radially inner central portion again It is possible to achieve a more clean effect by including the step of discharging the clean air to the outlet (2) through the step and the separation of the cleaning liquid, furthermore, the suction step and the discharge step is connected to the multi-stage by using a multi-stage blowing means. It may be. 1 or 11 (b) shows the use of only two stages of blowing means.

In Fig. 1 (a) or Fig. 9, in particular, in Fig. 2 (b), Fig. 8 and Fig. 9, the cleaning type dust collector of the present invention is basically a blower means 20, a cleaning liquid spray nozzle ( 35) and the cleaning liquid separating and discharging means such as the eliminator 54, and the cleaning liquid spray nozzle 35 and the eliminator 54 are respectively shown in FIGS. 2 (b) and 8 and 9, respectively. It may be installed in the suction step and the discharge step, it may include a filler 44 between the cleaning liquid spray nozzle 35 and the eliminator 54.

The blowing means 20 radially sucks exhaust gas or polluted air radially from the inner circumferential portion of the housing 11 of the circular or polygonal cross-sectional structure to the radially inner central portion from the front through the inlet 1, and separates the dust collecting chamber. The plate 41 is configured to be in fluid communication with the suction part and to discharge the clean air of the polluted air or exhaust gas radially outward from the central part. In FIG. 1 (a) or FIG. 9, the blowing means 20 has two stages, and the rotary shaft 24 is installed in the center of the housing 11, 11 of circular cross section, respectively, and the blower pulley 25 is provided. And a motor 27 installed in the motor support 27a via the motor pulley 26. Looming 11 is fixed and coupled to the flange 11a by fixing means, and exhaust and polluted air inlet 1 and clean air outlet 2 are provided on both sides of the housing 11, It is fixed and installed by the support 15 on the drain tank 14, and both sides are sealed by the side housings 12 and 13. The rotating shaft 24 is installed in the side housing 13 via the bearing 23, the inlet cone guide member 22 is installed in front of the impeller 21 of the blowing means 20 is contaminated air or exhaust Guides the inflow of gas, and between the outer periphery of the inlet cone guide member 22 and the housing 11, a dust collecting chamber separating plate 41 is installed to fluidly separate the suction part and the discharge part of the blowing means 20. do.

The spray nozzle 35 is configured to spray the cleaning liquid to at least the upstream side of the suction part and the discharge part and to contaminated air or exhaust gas passing through. The spray nozzle 35 is disposed through the cleaning liquid inlet 3, the cleaning liquid supply pipe 31, the nozzle mounting pipes 32 and 34, and the pump not shown, as shown in FIG. 3 or FIG. Is connected to the drain tank 14

4, 6, 8 and 9, contaminated air or exhaust gas and cleaning liquid to further promote the mixing of foreign matter and cleaning liquid passing downstream of the spray nozzle 35 in the suction and discharge portions. The fillers 44 are staggered from each other so as to pass through these collisions and obesity. As shown in FIGS. 4 and 8, the suction part of the first stage blower means 20 separates the cleaning liquid mixed with the foreign matter and the contaminated air or exhaust gas and separates the cleaning liquid containing the foreign matter. An eliminator 54 is installed downstream of the filler material 44 so as to flow and discharge into the drain tank 14 connected thereto.

In addition, as shown in FIGS. 7, 8, and 9, the discharge portion of each blower means 20 is separated by upper and lower dust collecting chamber separation plates 43 and discharged to the radially outer side. Alternatively, the spray nozzle 35 and the filling material 44 are installed in the portion discharged radially outward while passing the exhaust gas through the radially inner central portion to further promote the mixing of contaminant air or exhaust gas with foreign matter and the cleaning liquid. The spray nozzle 35, the filler 44, and the eliminator 54 are disposed on the upper and lower houses so as to further clean the polluted air or exhaust gas discharged to the inner circumference of the upper and lower dust collecting chamber separation plates 43. It is installed downstream of the truth separating plate 43.

The eliminator 54 may also be installed at the front discharge portion of the upper and lower dust collecting chamber separation plates 43. However, in this embodiment, since the centrifugal force acts at the front discharge portion, the cleaning liquid into which the foreign matter enters and exits the housing ( 11 is discharged to the drain tank 14 along the inner circumference and only the clean air is discharged by returning the upper and lower dust collecting chamber separator 43 in order to further purify.

The rare tank 14 may be separately provided to prevent passage of both the contaminated air or the exhaust gas and the cleaning liquid, respectively, between the intake and discharge portions of the contaminated air or the exhaust gas, and between the respective stages. In the drain tank 14, the cleaning solution passage 4 may be installed to be inserted into the drain tank 14 so that the circulation of the cleaning liquid may be performed, and the cleaning liquid may be configured to perform a gas blocking function by maintaining the cleaning liquid line 4a. Although not shown, the inside of the drain tank 14 may be separated by a plurality of partitions having a circulation port at the bottom so that only the cleaning liquid passes.

In addition, the drain tank 14 may be provided with a contaminant cleaning liquid outlet (piping) 5 and a drain pipe 6 as shown in FIG. 1 (b) or FIG. 6 for regeneration or replacement of the cleaning liquid. have.

The filler 44 and the eliminator 54 are bolted 55a, nut 55b and ring 55c such that they are maintained at regular intervals as shown in detail in FIGS. 8, 9 and 11 (b). It is installed between each of the dust collecting chamber separating plates (41, 51, 53) via the filler fixing plate 42, the upper and lower dust collecting chamber separating plate 43 and the filling material and the eliminator fixing plate 52 by the separator (55). All

The cleaning scrubbing device for polluting gas of the vertical circular cross-sectional housing structure according to another embodiment of the present invention shown in FIG. 10 (a) or 11 (b) is roughly the above-described scrubbing method for the horizontal polluting gas. The device is at right angles, but the difference is that when the integrated drain tank 14 'is configured to be disposed underneath, the contaminant washing liquid passage 4' in FIG. 10 (a) or 11 (b) is It is connected to the drain tank 14 'via the washing | cleaning liquid passage 4c, As shown in FIG. 11 (b), the contaminant washing liquid passage 4' is U-shaped installed in the washing | cleaning liquid passage 4c. It is provided to be inserted into the trap 4b, and can be configured to function as a gas blocking function by keeping the cleaning liquid line 4a 'within the U-shaped trap 4b. The drain tank 14 'may also have a contaminant cleaning liquid outlet (pipe) 5' and a drain pipe 6 'as shown in FIG. 1 (b) or 6 for regeneration or replacement of the cleaning liquid.

In addition, as shown in FIG. 11 (b), in the case of the vertical type, the cleaning solution inflow preventing plate 56 may be installed downstream of the discharge part to prevent the cleaning solution from flowing out and being overweight through the outlet 2 '. have

In the dust-collecting dust collector of the rectangular cross-sectional structure as shown in FIG. 12, the housing 11 ', the side housings 12' and 13 ', the filler fixing plate 42', and the upper and lower dust collecting chamber separator 43 '), The filler and the eliminator fixing plate 52', each dust chamber separating plate 41 ', 51', 53 'is formed in a rectangular shape.

Referring to FIG. 1 or FIG. 12, the cleaning method of the polluting gas according to the embodiments of the present invention configured as described above and the operation and effect of the dust collecting apparatus will be described below.

When the blower means 20 of the 1st and 2nd stages are rotated by the drive of the motor 27, when the exhaust gas or the polluted air to be polluted and clean is sucked into the housing 11 through the inlet 1, the housing 11 Radiant flows radially from the inner circumferential portion of the inner portion to the contaminated air or exhaust gas, and the cleaning liquid is sprayed through the cleaning liquid spray nozzle 35 by the driving of the pump (not shown) to be mixed with the foreign matter of the contaminated air or exhaust gas. As the contaminant air or exhaust gas and the cleaning liquid collide with the filler 44 and scatter, the mixing of the foreign matter and the cleaning liquid is further promoted.

Subsequently, the cleaning liquid mixed with foreign matter and contaminated air or exhaust gas collide with the eliminator 54 downstream of the filler 44 to separate the cleaning liquid mixed with the foreign matter and the primary clean air, and the dirty cleaning liquid is discharged to the drain tank ( 14) flow and discharge.

The primary clean air is then discharged radially outward through the first stage blower means 20 in the middle, and further mixed with the cleaning liquid sprayed by the spray nozzle 35 in the process and further filled by the filler 44. While the mixing is accelerated, the cleaning liquid in which foreign matter is mixed with the centrifugal force and the third clean air are separated, and the second cleaning air is sprayed and filled with the cleaning liquid by the spray nozzle 35 by turning the upper and lower dust chamber separation plates 43. ) Is sucked and discharged into the second stage blowing means 20 as the third clean air through the collision, scattering, and elimination by the eliminator 54, and is sprayed in the process of discharging the second stage blowing means 20 again. The cleaning liquid sprayed by the nozzle 35 and the mixing liquid are further promoted by the filling material 44, and the cleaning liquid mixed with foreign matter by the centrifugal force is separated from the 4th clean air, and the 4th clean air is separated from the upper and lower dust chambers. Spray around plate (43) Collision by sprayed, the filling material 44 in the cleaning liquid by the nozzle 35, the separation by scattering and eliminator 54, through the discharge process is discharged through the outlet 3 as the fifth clean air.

On the other hand, the cleaning liquid is supplied from the drain tank 14 to the spray nozzle 35 via the cleaning liquid inlet 3, the cleaning liquid supply pipe 31, and the nozzle mounting pipes 32 and 34 by the driving of the pump, and the contaminated cleaning liquid is Along the inner circumferential surface of the eliminator 54 or the housing 11, it is discharged to the drain tank 14 through the contamination cleaning liquid passage 4.

On the other hand, in the case of the integrated drain tank 14, as described above, the cleaning liquid must maintain the cleaning liquid line 4a to function as a gas blocking function between the suction part and the discharge part.

In addition, a technique for regenerating the cleaning liquid or replacing the cleaning liquid by passing a filter (not shown) through the contamination cleaning liquid outlet (piping) 5 and the drain pipe 6 to the drain tank 14 is known. Circular regeneration systems or exchange methods may apply. In addition, when the contaminated air or exhaust gas is hot, it is also widely known to cool the cleaning liquid by heat exchange means. In the above-described step according to the present invention, the spray nozzle 35 is provided in front of or behind the first stage blower means 30. The cleaning liquid sprayed from) also makes it possible to achieve substantial cooling to contaminated air or exhaust gas.

The present invention is not limited to the type or structure of the blowing means 20, and is not limited to the shape and material of the filler 2 and the eliminator 54.

According to the constitution and operation of the method for cleaning the polluted gas according to the embodiments of the present invention and the dust collector, the foreign matter is removed by the cleaning liquid that is directly sprayed with contaminated air or exhaust gas in a compact structure, In addition to being able to circulate and regenerate the cleaning liquid at the same time as it is clean, it has the effect of treating the contaminated air or the exhaust gas under a large capacity and poor conditions even in a small structure.

Claims (5)

In the cleaning method of the contaminated gas for cleaning the contaminated gas by the cleaning liquid, the exhaust gas or contaminated air is blown by the blowing means 20 through the inlet 1 in front of the housing means 11. A suction step radially flowing from an inner circumferential portion of the inner portion to a radially inner central portion thereof, and separated from the suction step, and the polluted air or exhaust gas radially outward from the central portion by the blowing means 20. A discharging step of discharging clean air; At least one of the suction step and the discharge step may include: a cleaning liquid spraying step of spraying the cleaning liquid into the contaminated air or exhaust gas by the cleaning liquid spray nozzle 35 to mix the foreign matter with the contaminated air or exhaust gas; And a washing liquid separating and discharging step in which the washing liquid mixed with foreign matter and contaminated air or exhaust gas are separated by the collision and the washing liquid containing foreign matter flows to and discharges from the drain tank 14 connected to the housing 11. And at least one of the discharging step includes a collision scattering step in which contaminated air or exhaust gas and the cleaning liquid collide and scatter by passing fillers 44 staggered with each other to further promote mixing of foreign matter and cleaning liquid. Washing dust collection method of the polluted gas. The cleaning type dust collector for cleaning the polluted gas with the cleaning liquid radially radiates the polluted gas from the inner circumferential portion of the housing 11 of the circular or polygonal cross-sectional structure forward through the inlet 1 to the radially inner central portion. A blowing means (20) for discharging clean air of the polluted air or exhaust gas radially outwardly from a central part by fluidly separating the suction part by a dust collecting chamber separating plate (41); A cleaning liquid spray nozzle 35 installed on at least one side of the suction part and the discharge part and spraying the cleaning liquid to the contaminated air or exhaust gas to mix with the foreign matter of the contaminated air or exhaust gas; A downstream side of the spray nozzle 35 is installed on at least one side of the suction part and the discharge part, the cleaning liquid mixed with foreign matter and the contaminated air or exhaust gas collide with each other, and the cleaning liquid containing the foreign matter is connected to the housing 11. 14, the cleaning liquid separation and discharge means to flow into the tank; And contaminated air or exhaust gas and the cleaning liquid collide with each other so as to further promote the mixing of the foreign matter and the cleaning liquid which are downstream of the spray nozzle 35 and upstream of the cleaning liquid separation and discharge means and are passed through the suction part and the discharge part. Washing dust collector, characterized in that it comprises a filler 44 arranged alternately to pass through and scattered. 3. The discharge part is discharged radially outward while passing through the radially inner central part again, the polluted air or exhaust gas separated by the upper and lower dust collecting chamber separators 43 and discharged radially outward. The spray nozzle 35 and the filling material 44 are installed in the portion so as to further promote the mixing of the foreign matter and the cleaning liquid with contaminated air or exhaust gas, and are discharged inward by turning the outer periphery of the upper and lower dust collecting chamber separation plates 43. The spray nozzle 35, the filler 44 and the cleaning liquid separating and discharging means are installed downstream of the upper dust collecting chamber separation plate 43 to further clean the polluted air or exhaust gas. Dust collector. 4. The drain tank (14) according to claim 2 or 3, characterized in that the drain tank (14) is provided so as to prevent passage of the polluted air or the exhaust gas between the suction and discharge portions of the polluted air or the exhaust gas and between the respective stages. Cleaning type dust collector for polluting gas. The cleaning liquid passage (4) according to claim 4, wherein the cleaning liquid passage (4 ') is connected to the drain tank (14') via the cleaning liquid passage (4c), and the cleaning liquid passage (4 ') is connected to the inside of the cleaning liquid passage (4c). It is installed to be inserted into the U-shaped trap 4b to be installed, and the cleaning liquid is configured to perform the gas blocking function by maintaining the cleaning liquid line 4a 'in the U-shaped trap 4b. Formal dust collector.

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