WO2019059082A1 - パルスジェット式集塵装置 - Google Patents

パルスジェット式集塵装置 Download PDF

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Publication number
WO2019059082A1
WO2019059082A1 PCT/JP2018/033960 JP2018033960W WO2019059082A1 WO 2019059082 A1 WO2019059082 A1 WO 2019059082A1 JP 2018033960 W JP2018033960 W JP 2018033960W WO 2019059082 A1 WO2019059082 A1 WO 2019059082A1
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WO
WIPO (PCT)
Prior art keywords
dust
chamber
pulse
storage container
duct
Prior art date
Application number
PCT/JP2018/033960
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
鈴木　崇
寛之 天野
功 齋藤
Original Assignee
新東工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新東工業株式会社 filed Critical 新東工業株式会社
Priority to JP2019543596A priority Critical patent/JP6972509B2/ja
Priority to CN201880062291.3A priority patent/CN111132745B/zh
Publication of WO2019059082A1 publication Critical patent/WO2019059082A1/ja

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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
    • B01D46/42—Auxiliary equipment or operation thereof

Definitions

  • the present invention relates generally to a pulse jet type dust collector, and more particularly to a pulse jet type dust collector having a configuration for transporting dust accumulated in a dust chamber to the outside of the dust chamber.
  • External air containing dust is introduced into the dust collection chamber through the air intake by suction of a fan, and is further passed through a filter disposed between the dust collection chamber and the clean chamber, and dust from the outside air containing dust Dust collectors are known.
  • a filter provided with a pulse-shaped compressed air (pulse jet) for dust removal is applied to a filter from a nozzle arranged on the clean chamber side.
  • a pulse jet type dust collector provided with a mechanism (backwashing mechanism) for removing dust adhering to the surface.
  • dust that has been removed from the filter is accumulated in the dust box at the bottom of the dust chamber.
  • Dust accumulated in the dust box at the bottom of the dust chamber should be disposed of as appropriate. For this reason, when the dust collecting apparatus is operated for a predetermined time, a display to that effect is made, and based on this display, the pulse jet type dust collecting apparatus provided with a configuration for prompting the worker to discard dust from the dust box is known. It is done. In the dust disposing operation in the dust collecting apparatus, a worker draws the dust box disposed at the bottom of the dust chamber and dust is accumulated inside, outside the dust collecting apparatus, and discards the dust in the dust box. (Patent Document 1)
  • Patent Document 2 a pulse jet type dust collector provided with a configuration in which dust that has dropped to the bottom of the dust chamber is sequentially discharged from the dust collector through a flow path provided with a rotary valve
  • Patent Document 2 Although the pulse jet type dust collector of Patent Document 2 can discharge the dust that has fallen to the bottom of the dust chamber by being removed from the filter, etc. sequentially to the outside of the dust collector, the rotary valve is expensive. Because of this, there has been a problem that the manufacturing cost of the dust collector and the like increase.
  • the present invention has been made in view of such a point, and the dust which has fallen to the bottom of the dust chamber is sequentially discharged to the dust collection chamber with an inexpensive structure to prevent the dust from reattaching to the filter. It is an object of the present invention to provide a pulse jet type dust collector capable of
  • a pulse jet type dust collector wherein dust attached to a filter disposed between a dust chamber into which external air containing dust is introduced and a clean air chamber is dispelled into the dust chamber by a pulse jet,
  • a dust storage container provided outside the dust chamber;
  • a dust transport duct having one end connected to the dust accumulation area at the bottom of the dust chamber and the other end connected to the dust storage container;
  • a pulse air return duct connected at one end to the dust storage container and at the other end to the dust chamber.
  • a pulse jet that sweeps dust off of the filter flows from the dust chamber through the dust transport duct into the dust storage container and back to the dust chamber through the pulse air return duct. For this reason, the dust that has fallen to the bottom (dust accumulation area) of the dust chamber is transferred from the dust chamber to an external dust storage container by the flow of this pulse jet. Then, the dust deposited on the bottom of the dust chamber is prevented from reattaching to the filter.
  • It further comprises a check valve provided in the pulse air return duct.
  • the pulse jet that has entered the dust chamber reliably flows in the direction of the dust transport duct, the dust storage container, and the pulse air return duct in the order of returning to the dust chamber.
  • a first on-off valve provided in the dust transport duct A second on-off valve provided in the pulse air return duct;
  • the dust transport duct and the pulse air return duct are removably connected to the dust storage container.
  • the dust transport duct connecting the dust storage container and the dust chamber and the pulse air return duct are each provided with an on-off valve, the communication between the dust storage container and the dust chamber is shut off by closing these on-off valves. can do. Therefore, by closing these on-off valves, it is possible to discharge dust from the dust storage container while the dust collection apparatus is operating.
  • the other end of the pulse air return duct is connected to the top of the dust chamber.
  • One end of the pulse air return duct is connected to the dust storage container at a position higher than the other end of the dust transport duct.
  • Dust in the dust storage container is suppressed from being returned to the dust chamber through the pulse air return duct.
  • One end of the pulse air return duct is connected to the top of the dust storage container.
  • a pulse jet type dust collector capable of discharging dust accumulated in the dust chamber of the pulse jet type dust collector to the outside of the dust collector without stopping the operation of the dust collector with an inexpensive configuration.
  • FIG. 1 is a schematic cross-sectional view showing the structure of a pulse jet type dust collector (dust collector) 100 according to a preferred embodiment of the present invention.
  • the dust collection apparatus 100 includes a housing 1.
  • An internal space of the housing 1 is divided into a dust chamber 6 on the lower side and a clean air chamber 8 on the upper side by a cell plate 2 which is a partition plate and a filter 4 attached to the cell plate 2.
  • the dust chamber 6 is a space into which the outside air containing dust (dust-containing air) is introduced
  • the clean air chamber 8 is an outside air (clean air) from which dust (dust) is removed by passing through the filter 4 Is the space where
  • the filter 4 is a bottomed cylindrical tubular filter, and the dust collection device 100 of the present embodiment includes a plurality of tubular filters. Each filter 4 is attached to the cell plate 2 in a state of projecting to the dust chamber 6 side so that the internal space thereof communicates with the clean air chamber 8.
  • the filter 4 of the dust collection device 100 of the present embodiment has a structure in which dust is filtered and collected on the outer surface (the surface on the dust chamber 6 side).
  • a suction duct 10 for introducing dust-laden air (outside air) into the dust chamber 6 is provided at a lower position of the side wall of the dust chamber 6.
  • a suction fan 12 for suctioning the internal space of the housing 1 is provided at a lower position of the side wall of the dust chamber 6.
  • outside air containing dust is introduced into the dust chamber 6 through the suction duct 10, and is further introduced into the clean air chamber 8 through the filter 4.
  • the dust-containing outside air passes through the filter 4, the dust is removed by the filter 4 to become clean air, and the clean air is discharged out of the apparatus through a clean air outlet (not shown).
  • the removed dust is trapped in the area of the outer surface (the surface on the dust chamber side) of the filter 4 and adheres to this area.
  • the dust collection device 100 of the present embodiment includes a pulse jet type dust removal device 14 on the clean air chamber 8 side.
  • the dust removing device 14 has an air tank, an air valve, a solenoid valve, a manifold, and the like, as in the conventional dust removing device.
  • the dust removing device 14 blows pulsed compressed air in the air tank into the inner space of the filter 4 from the clean air chamber 8 side, and the outer surface of the filter 4 (dust chamber side The dust adhering to the (surface) area is removed from the outer surface of the filter 4 to the dust chamber 6 side.
  • the dust removed from the outer surface of the filter 4 to the dust chamber 6 side by the dust removal device 14 is accumulated in the dust accumulation portion 16 located at the bottom of the dust chamber 6.
  • a region (lower region) having a height of about 20 cm from the bottom of the dust chamber 6 is a dust accumulation portion (dust accumulation region) 16 on which the dust discharged from the outer surface of the filter 4 is accumulated.
  • the dust collecting apparatus 100 includes a dust storage container 18 provided outside the dust chamber 6, a dust accumulation unit 16 at the bottom of the dust chamber 6, and a dust transport duct 20 for communicating the dust storage container 18 with each other. And.
  • the dust storage container 18 is a container for storing the dust D ′ transferred from the dust chamber 6 by the dust transport duct 20, and has a cylindrical shape, a rectangular solid shape, or the like.
  • the dust transport duct 20 is a cylindrical body having a diameter of about 10 cm, one end of which is connected to the dust accumulation portion (dust accumulation area) 16 at the bottom of the dust chamber 6 and the other end to the dust storage container 18.
  • the transfer path for transferring the dust D accumulated in the dust accumulation section 16 of the above to the dust storage container 18 is configured.
  • the dust transport duct 20 is detachably connected to the dust storage container 18.
  • the dust transport duct 20 is provided with a first on-off valve 22 at an intermediate position, and a first check valve 24 at the connection with the dust storage container 18.
  • the first on-off valve 22 is open in the normal operating state.
  • the first check valve 24 is provided with a flat plate 24a that can be opened and closed on the dust storage container 18 side, and a shaft 24b that instructs the upper part of the flat plate 24a to be pivotable.
  • the flat plate 24a swings to the dust storage container 18 side about the shaft 24b, and the dust transport duct 20 on the dust storage container 18 side.
  • the open end is opened, and the dust transport duct 20 and the dust storage container 18 are in communication.
  • the flat plate 24 a swings to the open end side of the dust transport duct 20 around the shaft 24 b. The open end is closed, and the dust transport duct 20 and the dust storage container 18 are disconnected.
  • the first check valve 24 is configured such that dust D ′ transferred from the dust accumulation portion 16 of the dust chamber 6 to the dust storage container 18 via the dust transport duct 20 passes through the dust transport duct 20 to the dust chamber 6. It has a function to prevent backflow to the dust accumulation portion 16 of the
  • the dust transport duct 20 is connected to the dust accumulation unit 16 by having one end penetrate the side wall of the dust chamber 6 near the bottom of the dust chamber 6, and the other end is dust
  • the dust storage container 18 is connected to the dust storage container 18 at a position above the central position in the height direction of the storage container 18.
  • the dust transport duct 20 may be connected to the dust accumulation unit 16 by penetrating the bottom wall of the dust chamber 6. Moreover, in the dust collector 100 of this embodiment, although the dust transport duct 20 is about 10 cm in diameter, another dimension may be sufficient.
  • pressure is accumulated in the dust accumulation portion 16 of the dust chamber 6 by the pressure of pulse-like compressed air (pulse jet) blown into the filter 4 from the dust removal device 14 at the time of dust removal operation.
  • Some dust D is transferred to the dust storage container 18 through the dust transport duct 20.
  • the dust collection apparatus 100 of the present embodiment further includes a pulse air return duct 26 that brings the upper portion of the dust chamber 6 into communication with the top of the dust storage container 18.
  • a pulse air return duct 26 that brings the upper portion of the dust chamber 6 into communication with the top of the dust storage container 18.
  • one end of the pulse air return duct 26 is connected to the top of the dust storage container 18 and the other end is connected to the dust chamber 6 by penetrating the upper side wall of the dust chamber 6. ing.
  • the pulse air return duct 26 is detachably connected to the dust storage container 18.
  • the pulse air return duct 26 is provided to release the pressure in the dust storage container 18 raised by the pressure of pulse compressed air (pulse jet) blown into the filter 4 from the dust removing device 14 to the dust chamber 6. There is. Since the pressure of the pulse jet is lower in the upper part of the dust chamber 6 than in the lower part, the pulse air return duct 26 is connected to the dust chamber 6 at the upper part of the dust chamber 6 to suppress backflow through the pulse air return duct 26 It is done.
  • the pulse air return duct 26 is provided with a second on-off valve 28 at an intermediate position, and a second check valve 30 at the connection with the dust chamber 6.
  • the second on-off valve 28 is open in the normal operating state.
  • the second check valve 30 includes a flat plate 30a which can close the open end of the pulse air return duct 26 on the dust chamber 6 side, and a shaft 30b which instructs the upper portion of the flat plate 30a to be able to swing.
  • the flat plate 30a pivots toward the dust chamber 6 centering on the shaft 30b, and the open end of the pulse air return duct 26 on the dust chamber 6 side It is opened to bring the pulse air return duct 26 and the dust chamber 6 into communication with each other.
  • the flat plate 30a swings to the opening end side of the pulse air return duct 26 around the shaft 30b and opens the pulse air return duct 26 The end is closed to disconnect the pulse air return duct 26 from the dust chamber 6.
  • the second check valve 30 moves in a predetermined direction, that is, the dust transport The duct 20, the dust storage container 18, and the pulse air return duct 26 flow in order and flow in the direction of returning to the dust chamber 6.
  • the suction fan 12 in the clean chamber rotates, and dust-containing air (outside air) containing dust is introduced into the dust chamber 6 through the suction duct 10.
  • the air containing dust introduced into the dust chamber 6 further passes through the filter 4 to remove dust, and is introduced into the clean air chamber 8.
  • the air (clean air) introduced into the clean air chamber 8 after the dust is removed passes through the inside of the suction fan 12 and is exhausted out of the dust collector 100.
  • dust contained in the outside air is trapped on the outer surface (the side surface of the dust chamber 6) of the filter 4 or in the vicinity of the outer surface.
  • pulsed compressed air (pulse jet) is blown from the dust removal device 14 into the inside of the filter 4 from the clean air chamber 8 side to remove dust from the outer surface of the filter 4.
  • the dust removal operation is performed when the filter pressure is reduced to a predetermined value or when a predetermined operation time has elapsed in the dust collection device 100 of the present embodiment.
  • a pressure outlet (not shown) is provided in each of the dust chamber 6 and the clean air chamber 8, and the difference between the pressures measured at these pressure outlets is adopted as the filter differential pressure. ing.
  • the dust blown off from the outer surface of the filter 4 and accumulated in the dust accumulation portion 16 at the bottom of the dust chamber 6 is caused by an instantaneous downward flow of air and a pressure increase in the dust chamber 6 by the pulse jet by the dust removing device 14
  • the internal pressure is transferred through the dust transport duct 20 towards the dust storage container 18 where the internal pressure is low.
  • the air flow by this pulse jet flows from the dust storage container 18 to the pulse air return duct 26, and one end of the pulse air return duct 26 is connected to the dust storage container 18 at a position higher than the other end of the dust transport duct 20 There is. Dust whose end settling velocity by gravity settling is higher than the rising velocity of the air flow falls to the bottom and is stored in the dust storage container, so that it is difficult for the pulse air return duct 26 to flow back to the dust chamber 6.
  • the pulse jets flowing into the dust storage container 18 are returned to the dust chamber 6 through the pulse air return duct 26. Since the second check valve 30 is provided between the pulse air return duct 26 and the dust chamber 6, the flow of pulse air is restricted in one direction, and no reverse flow occurs.
  • the dust collection apparatus 100 of the present embodiment can remove the dust storage container 18 during operation, and discard the dust D ′ accumulated in the dust storage container 18.
  • the first on-off valve 22 provided on the dust transport duct 20 and the second on-off valve 28 provided on the pulse air return duct 26 are closed to The transport duct 20 and the pulse air return duct 26 are closed.
  • the dust transport duct 20 and the pulse air return duct 26 are removed from the dust storage container 18, the dust storage container 18 is separated from the housing 1, and the dust D 'stored in the dust storage container 18 is discarded.
  • the dust chamber 6 can be closed by closing the first on-off valve 22 and the second on-off valve 28 in this way, the dust storage container 18 is separated from the housing 1 and the dust D 'is discarded Even during the process, it is possible to perform the dust collection operation by the dust collection device 100 and the dust removal operation.
  • the dust transport duct 20 is provided with the first on-off valve 22 and the pulse air return duct 26 is provided with the second on-off valve 28.
  • the valve 22 and / or the second on-off valve 28 may not be provided.
  • the first check valve 24 and / or the second check valve 30 may not be provided.
  • dust collector 1 housing 2: cell plate 4: filter 6: dust chamber 8: clean air chamber 10: suction duct 12: suction fan 14: dust removal device 16: dust accumulation unit 18 : Dust storage container 20: Dust transport duct 22: first on-off valve 24: first check valve 26: pulse air return duct 28: second on-off valve 30: second check valve

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
PCT/JP2018/033960 2017-09-25 2018-09-13 パルスジェット式集塵装置 WO2019059082A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019543596A JP6972509B2 (ja) 2017-09-25 2018-09-13 パルスジェット式集塵装置
CN201880062291.3A CN111132745B (zh) 2017-09-25 2018-09-13 脉冲喷气式集尘装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017183441 2017-09-25
JP2017-183441 2017-09-25

Publications (1)

Publication Number Publication Date
WO2019059082A1 true WO2019059082A1 (ja) 2019-03-28

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Application Number Title Priority Date Filing Date
PCT/JP2018/033960 WO2019059082A1 (ja) 2017-09-25 2018-09-13 パルスジェット式集塵装置

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JP (1) JP6972509B2 (zh)
CN (1) CN111132745B (zh)
TW (1) TW201919750A (zh)
WO (1) WO2019059082A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117848299B (zh) * 2023-12-27 2024-07-05 中化学土木工程有限公司 一种基于bim技术的便携式测绘处理装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63185428U (zh) * 1987-05-21 1988-11-29
JPH09206533A (ja) * 1996-01-31 1997-08-12 Toyota Motor Corp バグフィルタの異常監視方法
JP2014180770A (ja) * 2013-03-18 2014-09-29 Oru Japan Kk 生コンクリート用混合機の除塵装置
JP2015160158A (ja) * 2014-02-26 2015-09-07 三菱重工メカトロシステムズ株式会社 集塵装置の運転方法及び集塵装置

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Publication number Priority date Publication date Assignee Title
KR100992841B1 (ko) * 2008-06-30 2010-11-09 대진대학교 산학협력단 부스형 집진기
DE102009006878A1 (de) * 2009-01-30 2010-08-12 Uhde Gmbh Verfahren zur Ausschleusung des bei dem Betrieb einer Entstaubungsanlage für Rohrgas anfallenden Staubes
JP3187287U (ja) * 2013-08-28 2013-11-21 清三郎 秋山 粉体分離排出装置
CN103480211B (zh) * 2013-10-14 2015-05-27 南京钢铁股份有限公司 一种高炉制粉布袋收粉系统多模式清扫反吹工艺
US10010824B2 (en) * 2014-07-03 2018-07-03 U.S. Urasaki Co., Ltd. Dust collection device
CN106823598A (zh) * 2016-12-23 2017-06-13 易能环境技术有限公司 一种直通均流脉冲袋式除尘器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63185428U (zh) * 1987-05-21 1988-11-29
JPH09206533A (ja) * 1996-01-31 1997-08-12 Toyota Motor Corp バグフィルタの異常監視方法
JP2014180770A (ja) * 2013-03-18 2014-09-29 Oru Japan Kk 生コンクリート用混合機の除塵装置
JP2015160158A (ja) * 2014-02-26 2015-09-07 三菱重工メカトロシステムズ株式会社 集塵装置の運転方法及び集塵装置

Also Published As

Publication number Publication date
CN111132745B (zh) 2021-12-03
CN111132745A (zh) 2020-05-08
TW201919750A (zh) 2019-06-01
JP6972509B2 (ja) 2021-11-24
JPWO2019059082A1 (ja) 2020-10-01

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