KR101777188B1 - Mist and dust precipitator using fabric sheet - Google Patents

Mist and dust precipitator using fabric sheet Download PDF

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Publication number
KR101777188B1
KR101777188B1 KR1020150190887A KR20150190887A KR101777188B1 KR 101777188 B1 KR101777188 B1 KR 101777188B1 KR 1020150190887 A KR1020150190887 A KR 1020150190887A KR 20150190887 A KR20150190887 A KR 20150190887A KR 101777188 B1 KR101777188 B1 KR 101777188B1
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South Korea
Prior art keywords
fiber sheet
lower shafts
cleaning liquid
cleaning
fiber
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KR1020150190887A
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Korean (ko)
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KR20170079872A (en
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설진정
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설진정
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D46/002—
    • B01D46/0057—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01F3/04248—
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Filtering Materials (AREA)

Abstract

A dust collecting apparatus using a fiber sheet as a filter, and a dust collecting method using the dust collecting apparatus. The disclosed dust collecting apparatus includes an upper and a lower shaft spaced apart from each other and extending horizontally at upper and lower sides and a plurality of fiber sheets wound around the upper and lower shafts together to connect the upper and lower shafts, A cleaning tank in which all of the lower shafts of the plurality of filters are immersed in the cleaning liquid, and a path through which the fiber sheets wrap the upper and lower shafts together And a fiber sheet circulating unit for circulating the fiber sheet so as to be cleaned while being submerged in the cleaning liquid.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting apparatus using a fiber sheet,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting apparatus for filtering dust, which is mainly used in an industrial plant such as a power plant or a steel mill, and more particularly to a dust collecting apparatus using a fiber sheet as a filter, The present invention relates to a dust collecting method used.

For example, industrial plants such as power plants and steel mills generate large amounts of dust and pollutants. When the large amount of dust and pollutants are discharged into the atmosphere, serious environmental pollution such as air pollution is caused. Therefore, dust and pollutants are discharged through the dust collecting apparatus into the air.

Conventionally, a bag filter or an electric precipitator, which is conventionally used as an industrial dust collecting apparatus, has a large maintenance cost including a manufacturing cost and a filter replacement cost, which is a burden on management.

Korean Patent Registration No. 10-0722528 Korean Patent Publication No. 10-1512986

The present invention provides a dust collecting apparatus using a fiber sheet and a dust collecting method using the same, wherein the manufacturing cost and the maintenance cost are reduced.

The present invention also provides a dust collecting apparatus using a fiber sheet and a dust collecting method using the fiber sheet, wherein the period of replacement of the filter can be extended by periodically and automatically cleaning the filter made of a fiber sheet.

The present invention also provides a dust collecting apparatus using a fiber sheet in which damage to a filter is suppressed by reducing pressure resistance when air passes through the fiber sheet.

The present invention also provides a dust collecting apparatus using a fiber sheet in which the filtering performance is improved by increasing the contact time and contact area between air and filter while air passes through the dust collecting apparatus.

The present invention relates to a filter device comprising: upper and lower shafts which are spaced apart from each other and which extend horizontally on upper and lower sides, and a plurality of filters each having a fiber sheet for winding the upper and lower shafts together to connect the upper and lower shafts, A cleaning tank in which all of the lower shafts of the plurality of filters are immersed in the cleaning liquid, and a cleaning tank in which the fiber sheets are arranged in the upper and lower sides And a fiber sheet circulating unit for circulating the fiber sheet so as to be cleaned by being submerged in the cleaning liquid while circulating along the shaft enclosing the shaft.

A through hole for promoting the air flow may be formed in the fiber sheet.

Wherein a plurality of fiber sheets are provided in each of the plurality of filters, and the plurality of fiber sheets are spaced apart from each other in a longitudinal direction of the upper and lower shafts, and a plurality of The plurality of fiber sheets provided in the fiber sheet and the even filter can be staggered without overlapping each other.

A dust collecting apparatus using a fiber sheet according to the present invention is characterized in that when the washing liquid is drained from the washing tank, a dewatering machine for dewatering the drained washing liquid and separating and extracting dust from the drained washing liquid into a sludge form .

The dust collecting apparatus using the fiber sheet according to the present invention may further comprise a pump for recycling the washing liquid from which the dust has been removed through the dehydrating apparatus to the washing tank.

The dust collecting apparatus using the fiber sheet according to the present invention may further comprise a nozzle for discharging compressed air so that bubbles are generated in the washing liquid in the washing tank.

The dust collecting apparatus using the fiber sheet according to the present invention further comprises a connecting unit separably connecting one end and the other end in the longitudinal direction of the fiber sheet, And a hook holder which is provided at the other end and in which the hook is fitted or a Velcro tape fixed to the one end, and a hook- And a female type Velcro tape fixed to the male type Velcro tape.

A friction belt may be fixedly coupled to a back surface of the fiber sheet such that a back surface of the fiber sheet is in friction contact with the upper and lower shafts.

A friction sheath can be formed on the outer circumferential surfaces of the upper and lower shafts so that the outer circumferential surfaces of the upper and lower shafts are in friction contact with the back surface of the fiber sheet.

According to the present invention, there is provided a dust collecting method using the dust collecting apparatus, comprising: a dust collecting step of allowing air to pass through the filter unit to paste dust contained in the air onto the fiber sheet; A fiber sheet circulating step of circulating the fiber sheet so that the dusted portion is immersed in the cleaning liquid and a portion of the fiber sheet that is immersed in the cleaning liquid is exposed to the outside of the cleaning liquid; And a cleaning step of separating the fiber sheet from the fiber sheet.

The dust collecting method according to the present invention includes: a drain step of draining a washing liquid containing dust separated from the fiber sheet in the washing tank; A dewatering step of dewatering the drainage of the drainage cleaning liquid and separating and extracting dust in a sludge form in the drainage drainage liquid, and a recycling step of returning the cleaning liquid from which the dust has been removed to the washing tank again can do.

According to the present invention, a filter made of a fiber sheet can be used without using a filter such as a bag filter that has a short replacement cycle and can not be recycled, and can be automatically cleaned with a fiber sheet installed. Also, unlike an electric dust collector, since electric energy is not input for dust collection, operation and maintenance costs are reduced and manufacturing costs are reduced. Further, according to the present invention, it is possible to periodically and automatically clean the filter with the fiber sheet in a mounted state, so that the replacement period of the filter can be extended.

According to the present invention, the fiber sheet of the odd-numbered filter and the fiber sheet of the even-numbered filter are staggered without overlapping each other. Therefore, the pressure resistance is reduced when air passes through the filter unit, so that damage and breakage of the filter and the fiber sheet are suppressed. Further, the contact time and contact area of the air and the fiber sheet are increased while air passes through the filter unit, thereby improving the dust filtering performance.

1 is a longitudinal sectional view of a dust collecting apparatus according to an embodiment of the present invention.
2 is an enlarged view of a portion II in Fig.
FIGS. 3 and 4 are front views showing a first filter and a second filter among the plurality of filters of FIG. 1. FIG.
5 is an enlarged view of a portion V in Figs. 3 and 4. Fig.
Fig. 6 is a perspective view showing the fiber sheets of Figs. 2 and 3. Fig.
7 is a flowchart showing a dust collection method according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a dust collecting apparatus using a fiber sheet according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The terminology used herein is a term used to properly express the preferred embodiment of the present invention, which may vary depending on the intention of the user or operator or the custom in the field to which the present invention belongs. Therefore, the definitions of these terms should be based on the contents throughout this specification.

FIG. 1 is a longitudinal sectional view of a dust collecting apparatus according to an embodiment of the present invention, FIG. 2 is an enlarged view of a portion II in FIG. 1, FIG. 5 is an enlarged view of the V portion of FIG. 3 and FIG. 4. FIG. 1 to 5, a dust collecting apparatus 10 according to an embodiment of the present invention includes a housing 11, a filter unit 30, a fiber sheet circulating unit, and a dehydrator 17, Respectively.

The housing 11 can be installed, for example, in the middle of a duct which guides polluted air inside the plant (not shown) to the outside. An outlet (14) through which air flows out is formed on one side of the housing (11), and an outlet (14) through which air flows out from the other side. On the lower side of the housing 11, a washing tank 15 for containing the washing liquid WA is provided. The drain pipe 21 of the washing tank 15 is connected to the dehydrator 17 and the drain pipe 21 is opened and closed by a valve 27. When the valve 27 is opened, the cleaning liquid WA contained in the cleaning tank 15 is transferred to the dewatering unit 17 through the drain pipe 21.

The filter unit 30 has a plurality of filters 31A and 31B arranged in a row in the direction of the outlet 14 from the inlet 13 in the housing 11. [ Each of the plurality of filters 31A and 31B includes upper and lower shafts 50A and 50B and lower shafts 48A and 48B that are spaced from each other and extend horizontally on the upper and lower sides, And a plurality of fabric sheets 33 for winding the upper and lower shafts 50A and 50B and the lower shafts 48A and 48B together to connect the upper shafts 50A and 50B and the lower shafts 48A and 48B . The plurality of fibrous sheets 33 are spaced apart from each other in the longitudinal direction of the upper shafts 50A and 50B and the lower shafts 48A and 48B, that is, parallel to the Y axis. Further, among the plurality of filters 31A and 31B, the plurality of fiber sheets 33 provided in the odd-numbered filter 31A in the direction from the inlet 13 toward the outlet 14, that is, The plurality of fiber sheets 33 provided in the first to third filters 31B are staggered without overlapping each other.

The fiber sheet 33 may be made of microfiber. Microfiber fibers have a thickness of less than 0.5 denier and are thinner than one-hundredth of the thickness of their hair. Microfiber fibers are very tightly woven. The contaminated air flowing into the housing 11 through the inlet 13 is repeatedly brought into contact with the plurality of fiber sheets 33 while passing through the plurality of filters 31A and 31B so that even fine dust And adheres to the fiber sheet 33 to be filtered. Since the fiber sheet 33 of the odd-numbered filter 31A and the fiber sheet 33 of the even-numbered filter 31B are staggered without overlapping each other, when the contaminated air passes through the filter unit 30 The pressure resistance is reduced and damage and breakage of the filters 31A and 31B and the fiber sheet 33 are suppressed.

Although not shown in the drawing, the fiber sheet 33 may be provided with a through-hole for promoting air flow. On the other hand, in the present invention, the fiber sheet 33 is not necessarily made of microfine fibers, but may be made of other kinds of fibers. 3 and 4, one fiber sheet may be provided for each of the filters 31A and 31B.

All the lower shafts 48A and 48B of the plurality of filters 31A and 31B are disposed in the area inside the washing tank 15 so as to be immersed in the washing liquid WA contained in the washing tank 15. [ The cleaning liquid WA contains a surfactant component that separates the dust adhered to the fiber sheet 33 and the microfine fiber of the fiber sheet 33. [ The fiber sheet circulation unit is arranged so that all of the fiber sheets 33 are cleaned by being immersed in the cleaning liquid WA while circulating along the path of wrapping the upper shafts 50A and 50B and the lower shafts 48A and 48B together, 33). Therefore, since the contaminated fiber sheet 33 is cleaned while passing through the cleaning liquid WA without separating the contaminated fiber sheet 33 from the upper shaft and the lower shaft, it is used again for dust filtration. Therefore, the dust filtration performance can be uniformly maintained for a long period of time And the replacement period of the fiber sheet 33 can be extended to reduce the maintenance cost. The operating cycle of the fiber sheet circulating unit, i.e., the cleaning cycle of the fiber sheet 33, can be set at regular intervals. Alternatively, the manager of the dust collecting apparatus 10 may operate the fiber sheet circulating unit when it is determined that cleaning is necessary.

A plurality of nozzles 24 for discharging compressed air so as to generate bubbles in the cleaning liquid WA are provided in the inner space of the cleaning tank 15. The plurality of nozzles 24 are disposed in the cleaning tank 15 in front of the respective filters 31A and 31B so as to be submerged in the cleaning liquid WA and extend parallel to the Y axis, A plurality of air jet holes 25 are formed in the side surface. A compressor (19) disposed outside the housing (11) compresses the air. The compressed air supply pipe 23 is connected to the compressor 19 and the plurality of nozzles 24 so as to be air-flowable through the cleaning tank 15. The air compressed by the compressor 19 flows into the plurality of nozzles 24 through the compressed air supply pipe 23 and is discharged through the plurality of air jet holes 25 to the fiber sheet 33). Therefore, when bubbles are generated in the cleaning liquid WA and collide with strong pressure on the fibrous sheet 33 and break into small bubbles, the cleaning liquid WA penetrates fast and strongly to the fibrous sheet 33, 33).

When the valve 27 is opened and the cleaning liquid WA is drained from the cleaning tank 15 through the drain pipe 21, the dehydration processor 17 dehydrates the drained cleaning liquid WA to remove the drained cleaning liquid WA ), The dust is separated and extracted in the form of a sludge. The sludge is separately collected and buried or incinerated, or recycled. The dewatering unit 17 and the washing tank 15 are connected to each other through a recycling pipe 22 so as to be capable of fluid flow and a recycling pump 18 is installed on the flow path of the recycling pipe 22. Therefore, when the cleaning liquid WA from which dust has been removed through the dewatering device 17 is drained from the dewatering device 17, the recycling pump 18 operates and the cleaning liquid WA is re- And is introduced into the tank 15.

The fiber sheet circulation unit includes a first bevel gear 57 fixedly coupled to one end of each of the upper shafts 50A and 50B and a second bevel gear 57 meshing with the first bevel gear 57. [ A power transmission shaft 61 having a gear 62 and extending in a direction parallel to the X axis and an electric motor (not shown) for rotating the power transmission shaft 61. The second bevel gear 57 is provided in the power transmission shaft 61 by the number of the plurality of filters 31A and 31B. A bearing 56 is interposed at both longitudinal ends of all the upper shafts 50A and 50B so as to be rotatably supported by the housing 11 and at both ends in the longitudinal direction of all the lower shafts 48A and 48B, The bearing 49 is interposed so as to be rotatably supported by the bearing 11.

Accordingly, when the electric motor (not shown) is operated, the fiber sheet 33 is circulated between the upper shafts 50A and 50B and the lower shafts 48A and 48B to be cleaned while being submerged in the cleaning liquid WA . That is, the dust is separated from the fiber sheet 33 and transferred to the cleaning liquid WA. The fiber sheet circulating unit included in the dust collecting apparatus of the present invention is not limited to the structure in which the upper shafts 50A and 50B are rotated by the power of the electric motor. Instead of the upper shafts 50A and 50B, And 48B may be configured to rotate by the power of the electric motor and may be configured to rotate the upper shafts 50A and 50B and the lower shafts 48A and 48B with the power of the separate electric motor .

A rubber friction belt (not shown) is attached to the back surface of each fiber sheet 33 so that the back surface of all the fiber sheets 33 is in frictional contact with the upper shafts 50A and 50B and the lower shafts 48A and 48B 45 are fixedly coupled. On the other hand, all of the upper shafts 50A and 50B and the lower shafts 48A and 48B are formed so that the outer circumferential surfaces of the upper shafts 50A and 50B and the lower shafts 48A and 48B are in friction contact with the back surface of the fiber sheet 33 Is formed on the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface. The upper shafts 50A and 50B and the lower shafts 48A and 48B are formed of a shaft core 53 made of a metal or plastic and a friction material 54 made of a rubber material surrounding the shaft core 53 . Therefore, when the fiber sheet circulation unit is operated and the upper shafts 50A and 50B are rotated, the friction shafts 54 of the upper shafts 50A and 50B and the friction shafts 45 of the lower shafts 48A and 48B, So that the fiber sheet 33 can be reliably and cyclically rotated without slippage. On the other hand, the rubber friction wheel 45 and the friction sheath 54 are not essential to the dust collecting apparatus of the present invention. Further, only one of the friction belt 45 and the friction sheath 54 may be provided. The material of the friction belt 45 and the friction sheath 54 is not limited to rubber. For example, it may be a material such as silicone which increases friction.

The upper shafts 50A and 50B have small diameter sections 51A and 51B extending along the longitudinal direction and having a first diameter D1 and a second diameter D2 larger than the first diameter D1 And the extended large-diameter sections 52A and 52B are alternately arranged. As a result, a step HD is formed between the small-diameter sections 51A and 51B and the large-diameter sections 52A and 52B by a difference in radius. Although not shown, the lower shaft 48A, 48B is also provided with a small-diameter section corresponding to the small-diameter section 51A, 51B and the large-diameter section 52A, 52B of the upper shaft 50A, 50B along the longitudinal direction thereof, Diameter section is formed. The small-diameter sections 51A and 51B and the large-diameter sections 52A and 52B can be distinguished by the difference in thickness of the rubber material friction sleeve 54. A plurality of fiber sheets (33) are held in tight contact with the small-diameter sections (51A, 51B). Therefore, the fiber sheet 33 can not escape from the small-diameter sections 51A and 51B due to the step difference HD, and the correct position of the fiber sheet 33 and the correct spacing between the fiber sheets 33 are maintained.

2 and 3, wherein the fiber sheet 33 is cut in the form of a strip having a narrow width and a long length, and the strip-shaped fiber sheet 33 is cut into strip- Side end portion 34 and the other-end portion 35 of the upper shaft 50A and the lower shaft 48B are wound together. The dust collecting apparatus 10 further includes a connecting unit 36 for detachably connecting the fiber sheets 33. The connecting unit 36 includes a hook 37 provided at the one end 34, And a hook holder (40) provided at the other end (35). The hook 37 is connected to a strap 38 fixed to the one end 34 and the hook holder 40 is connected to a strap 41 fixed to the other end 35 do. However, the shape of the fibrous sheet 33 in the present invention is not limited to a strip shape having a narrow width and a long length.

The hook 37 is inserted into the hook holder 40 and the strap 38 connected to the hook 37 is pulled and tightened to connect the one end 34 and the other end 35 of the fiber sheet 33. When the hooks 37 are pulled out from the hook holder 40 in order to replace the fiber sheet 33, the fiber sheet 33 is strip-shaped and the upper shafts 50A and 50B and the lower shafts 48A and 48B ). When the fiber sheet 33 is wide, a plurality of connecting units 36 including a hook 37 and a hook holder 40 may be provided.

6, for example, a flexible Velcro tape fixed to one end of the fiber sheet 33 and a Velcro tape fixed to the other end of the fiber sheet 33, And a female type Velcro tape fixed to the male type Velcro tape.

FIG. 7 is a flow chart illustrating a dust collecting method according to an embodiment of the present invention. Referring to FIGS. 1 through 7, a dust collecting method using the dust collecting apparatus 10 according to an embodiment of the present invention will be described below. The dust collecting method of the present invention includes a dust collecting step S11, a fiber sheet circulating step S12, a cleaning step S13, a draining step S14, a dewatering step S15, and a recycling step S16. The dust collecting step S11 is a step of allowing air to pass through the filter unit 30 and adhering the dust contained in the air to the fiber sheets 33 of the filters 31A and 31B .

The fiber sheet circulation step S12 is performed such that the dusty portion of the fiber sheet 33 is immersed in the cleaning liquid WA and a portion of the fiber sheet 33 that has been immersed in the cleaning liquid WA is exposed to the outside of the cleaning liquid WA. And circulating the fiber sheet 33 by operating the sheet circulation unit. The cleaning step (S13) is a step of separating the dust adhering to the portion immersed in the cleaning liquid WA in the fiber sheet (33) from the fiber sheet (33). The cleaning effect can be promoted by blowing the compressed air through the nozzle 24 into the cleaning liquid WA in the cleaning step S13.

The drainage step S14 is a step of draining the cleaning liquid WA containing the dust separated in the fiber sheet 33 from the cleaning tank 15. [ The dewatering step S15 is a step of dewatering the washing liquid WA drained from the washing tank 15 and separating and extracting dust from the drained washing liquid WA into a sludge form. The recycling step S16 is a step of putting the cleaning liquid WA from which dust has been removed into the washing tank 15 again in the dehydrating step S15.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

10: dust collecting device 11: housing
15: Cleaning tank 17: Dehydrator
18: Pump 19: Compressor
24: nozzle 30: filter unit
31A, 31B: filter 33: fiber sheet
36: connecting unit 45: friction belt

Claims (11)

An upper and a lower shaft horizontally extending upward and downward from each other and a plurality of fiber sheets wound around the upper and lower shafts together to connect the upper and lower shafts, An arrayed filter unit; A cleaning tank in which all of the lower shafts of the plurality of filters are immersed in the cleaning liquid, wherein the cleaning liquid for cleaning the fiber sheet is accommodated; And a fiber sheet circulating unit circulating the fiber sheet so that the fiber sheet is circulated along the path of wrapping the upper and lower shafts together and cleaned by being submerged in the cleaning liquid,
A plurality of fiber sheets are provided in each of the plurality of filters, and the plurality of fiber sheets are disposed so as to be spaced apart from each other in a longitudinal direction of the upper and lower shafts,
Wherein a plurality of fiber sheets provided in the odd-numbered filters and a plurality of fiber sheets provided in the even-numbered filters are staggeredly arranged without overlapping each other. The method according to claim 1,
Wherein the fiber sheet is formed with a through-hole for promoting air flow. delete The method according to claim 1,
And a dewatering device for dewatering the drained washing liquid and separating and extracting the dust from the drained washing liquid into a sludge form when the washing liquid drained from the washing tank cyclone. 5. The method of claim 4,
And a recycling pump for returning the cleaning liquid from which dust has been removed to the cleaning tank through the dehydration processor. The method according to claim 1,
And a nozzle for discharging compressed air so that bubbles are generated in the cleaning liquid in the cleaning tank. An upper and a lower shaft horizontally extending upward and downward from each other and a plurality of fiber sheets wound around the upper and lower shafts together to connect the upper and lower shafts, An arrayed filter unit; A cleaning tank in which all of the lower shafts of the plurality of filters are immersed in the cleaning liquid, wherein the cleaning liquid for cleaning the fiber sheet is accommodated; And a fiber sheet circulating unit circulating the fiber sheet so that the fiber sheet is circulated along the path of wrapping the upper and lower shafts together and cleaned by being submerged in the cleaning liquid,
And a connecting unit separably connecting one end and the other end in the longitudinal direction of the fiber sheet,
Wherein the connection unit includes a hook provided at the one side end portion and a hook holder provided at the other side end portion and into which the hook is inserted or a hook-shaped hook- And a female type Velcro tape attached to the male type Velcro tape fixed to the other side end portion. An upper and a lower shaft horizontally extending upward and downward from each other and a plurality of fiber sheets wound around the upper and lower shafts together to connect the upper and lower shafts, An arrayed filter unit; A cleaning tank in which all of the lower shafts of the plurality of filters are immersed in the cleaning liquid, wherein the cleaning liquid for cleaning the fiber sheet is accommodated; And a fiber sheet circulating unit circulating the fiber sheet so that the fiber sheet is circulated along the path of wrapping the upper and lower shafts together and cleaned by being submerged in the cleaning liquid,
Wherein a friction belt is fixedly coupled to a back surface of the fiber sheet such that a back surface of the fiber sheet is in friction contact with the upper and lower shafts. An upper and a lower shaft horizontally extending upward and downward from each other and a plurality of fiber sheets wound around the upper and lower shafts together to connect the upper and lower shafts, An arrayed filter unit; A cleaning tank in which all of the lower shafts of the plurality of filters are immersed in the cleaning liquid, wherein the cleaning liquid for cleaning the fiber sheet is accommodated; And a fiber sheet circulating unit circulating the fiber sheet so that the fiber sheet is circulated along the path of wrapping the upper and lower shafts together and cleaned by being submerged in the cleaning liquid,
Wherein friction surfaces are formed on the outer circumferential surfaces of the upper and lower shafts so that the outer circumferential surfaces of the upper and lower shafts are in friction contact with the back surface of the fiber sheet.
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KR1020150190887A 2015-12-31 2015-12-31 Mist and dust precipitator using fabric sheet KR101777188B1 (en)

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KR102190199B1 (en) * 2019-12-30 2020-12-11 김군수 Air Filter
CN113842720B (en) * 2021-09-16 2023-04-07 中车青岛四方机车车辆股份有限公司 Filter screen structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100212301B1 (en) * 1996-07-10 1999-08-02 박문찬 Method and apparatus and filter for purifying waste gas

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100212301B1 (en) * 1996-07-10 1999-08-02 박문찬 Method and apparatus and filter for purifying waste gas

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