WO2015055157A1 - Système de filtration à filtre rotatif - Google Patents

Système de filtration à filtre rotatif Download PDF

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Publication number
WO2015055157A1
WO2015055157A1 PCT/DE2013/000617 DE2013000617W WO2015055157A1 WO 2015055157 A1 WO2015055157 A1 WO 2015055157A1 DE 2013000617 W DE2013000617 W DE 2013000617W WO 2015055157 A1 WO2015055157 A1 WO 2015055157A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
filter
housing
drum
filter drum
Prior art date
Application number
PCT/DE2013/000617
Other languages
German (de)
English (en)
Inventor
Dirk Barnstedt
Original Assignee
Dirk Barnstedt
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 Dirk Barnstedt filed Critical Dirk Barnstedt
Priority to PCT/DE2013/000617 priority Critical patent/WO2015055157A1/fr
Publication of WO2015055157A1 publication Critical patent/WO2015055157A1/fr

Links

Classifications

    • 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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • 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
    • B01D46/0052—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
    • B01D46/0056—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation with rotational movement
    • 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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/26—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies rotatable
    • 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
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00

Definitions

  • the present invention is concerned with according to the preamble of
  • Such a drum filter cleaning device is known from DE 1 703 945 in the prior art.
  • This drum filter cleaning device has a rotating drum, on the outer circumferential surface of which a filter material is arranged, on which the dust to be deposited settles and is swept off a rotating brush. The swept-off dust is then blown into a collecting slot from a slot jet generated inside a drum and fed to a cyclone, the cleaning of the drum filter being carried out in a single closed air flow first by blowing off and then by suction.
  • Hose filter and hang on the filter material These dust particles located on the filter material are then blown off by the blowing force of the nozzle and fall into a collecting container of the housing, from which the dust particles are discharged.
  • a disadvantage of this filter system with a rotary filter it is felt that the raw gas tangential to
  • Dust filter with a rotating round filter drum has become known, which is arranged concentrically in a round housing. Again, the raw gas to be cleaned is injected tangentially to the filter drum and sucked the clean air from the interior of the filter drum. The remainder of the remaining fine dust is blown off through a slot-shaped nozzle during rotation of the filter drum in a relatively small semicircular tube and fed to a funnel-shaped container.
  • the raw gas flowing in tangentially to the drum due to the high flow rate constantly in strong turbulence remains, whereby the degree of purification of the raw gas is reduced and will not lead to a satisfactory result.
  • Filter elements are arranged, which can be replaced individually when worn or ineffective, whereby an enlargement of the filter surface in relation to the space required to be achieved.
  • Filter drum protrudes an elongated blowpipe from the opening
  • the gas filter system is in a housing with at least one raw gas inlet and at least one clean gas, and a rotating filter drum and at least one arranged inside the filter drum, characterized in that the housing volume of the housing is divided into at least three pressure areas and behind the raw gas inlet opening in Housing a bouncing element is arranged, which flows into the raw gas and the rotating filter drum at least one homogeneous Layer of a filter material, wherein the filter drum is at least one end face with at least one clean nozzle in operative connection.
  • the second gas stream by means of one or more
  • Dust particles are collected and discharged.
  • a filter system which is arranged in any housing.
  • this housing is located approximately in the center of a rotary filter whose outer surface is covered with a filter medium.
  • the interior of the housing is divided into three pressure areas.
  • the raw gas to be purified is supplied to the raw gas region through a raw gas inlet.
  • the gas flow bounces when entering the raw gas space, first against a bounce element, whereby strong turbulence of the gas flow arise.
  • a cleaning process is performed with each rotation of the filter drum.
  • the filter drum rotates at a peripheral speed of about 0.1 m / s to 5 m / s. Another advantage is seen in the fact that in the housing in one
  • Bouncing element is arranged, which completely covers at least the opening area of the raw gas inlet opening.
  • the longitudinal axis of the filter drum is arranged vertically or horizontally in the housing.
  • the second gas supply line is slit-shaped, wherein the slot or arranged in series blowpipes extends over almost the entire length (H) of the filter drum.
  • a funnel-shaped collecting device is arranged, in which the filtered-out material
  • the housing volume is divided into three areas, with an area for the raw gas, and the
  • Another area is provided essentially for the clean gas, and the further area is provided as a blow-off room.
  • Filtering layer is a polyester needle felted or similar
  • a cladding layer is disposed, which is the surface of the filter layer
  • Cleaning sealing element is arranged, which is the surface of the
  • Filter drum cleans and seals during rotation of the filter drum.
  • At least two seals are arranged, which are the inside of the
  • Filter drum surface is a function of the differential pressure ( ⁇ ) between the clean gas space 18 and the raw gas space 17 within the housing 2.
  • Figure 1 is a schematic perspective view of the
  • Gas filter system (1) which is arranged in a housing (2);
  • Figure 2 is an exploded perspective view of the system (1) with a round housing (2) on a frame (2 ');
  • Figure 3 is a side view of the system (1) in a housing (2) with a Rohgaseintrittsstutzen (8 ') and a clean gas outlet nozzle (5), and a plurality of Gasabsaugstutzen (26');
  • Figure 4 is a schematic side view of the gas filter system (1), in which a blow-off (4) inside the filter drum (6) is arranged, whose volume in adjustable volumes (27, 27 ', 27 ") is divided;
  • Figure 5 is a schematic plan view along the section line A - A in
  • Fig. 4 on a square housing (2), inside which a baffle element (9), a filter drum (6), and two
  • Separating elements (21, 21 ') are arranged.
  • Figure 6 is an enlarged partial sectional view of the area B from
  • Figure 1 is a schematic perspective view of the
  • Gas filter system 1 shown.
  • the housing 2 is positioned on a support frame 2 ', not shown here, which is fixed with the feet on a bottom plate. Inside the housing 2, the actual filter system is arranged.
  • the interior of the housing 2 is essentially divided into three gas areas in which different gas pressures prevail during operation.
  • a circular or polygonal filter drum 6 in a first gas pressure region 17 is arranged, which is formed relatively large volume.
  • a gas pressure supply line 14 at the end of an elongated nozzle 4 (lance) is connected.
  • Above the raw gas chamber 17 is in this embodiment of the
  • Plain gas region 18 is arranged, which communicates with the clean gas discharge line 5.
  • the raw gas is supplied to the raw gas portion 17 through the raw gas inlet 8.
  • a bounce element In order to prevent the relatively strong flow of the raw gas unabated and unimpaired enters the raw gas space 17, in the direction of the raw gas flow behind the raw gas inlet opening 8 is a bounce element. 9
  • Rohgas Symposium Editions 17 are at least two separating elements 21, 21 'are arranged, which define and limit a blow-off 22.
  • the raw gas area 17 and the clean gas area 18 are separated from each other by means of a partition wall 3.
  • FIG. 2 shows an exploded perspective view of the system 1 with a round housing 2 on a frame 2 '.
  • gas inlet nozzle 8 ' enters the loaded with dust raw gas into the interior of the housing 2 and meets there immediately after entry on a baffle element 9, bounce on the heavier entrained particles and due to the effect of gravity in a
  • a filter drum 6 is arranged on, which is offset during the filtering operation of the raw gas by a drive 6 'in rotation.
  • On the opposite side of the baffle element 9 at least two separating elements 21, 21 'are arranged, which separate the raw gas region 17 from the exhaust gas region 22. The exhaust gas is then extracted by one or more exhaust ports 26.
  • Above the housing 2 is the
  • the clean gas duct 5 is arranged with the clean gas discharge, which distributes the clean gas to the rooms to be ventilated.
  • 3 shows a side view of the system 1 in a housing 2 with a raw gas inlet nozzle 8 'and an exhaust gas outlet nozzle 26, to the in
  • present partial embodiment 26 ' are arranged to produce a favorable pressure distribution in the exhaust port and a
  • Housing 2 is the drive 6 'or the rotary ring for the filter drum. 6
  • FIG. 4 shows a schematic side view of the gas filter system in which a blow-off element 4 in the form of an elongate nozzle or a blowing tube 4 'arranged in series with one another is immersed in the filter drum 6.
  • the internal volume of the blow-off element or elongate nozzle 4 can, if appropriate, be subdivided into different regions 27, 27 ', 27 "in order to ensure a uniform blow-off of the dust particles from the surface of the filter material, in these regions 27, 27', 27".
  • the raw gas to be purified is introduced via a supply line, not shown here, the inlet opening 8 of the raw gas chamber 17 with a predetermined
  • the flow mass of the raw gas impinges on the baffle plate 9, which is arranged at a predetermined distance (a) from the raw gas inlet opening 8.
  • This predetermined distance (a) is variably adjustable and depends essentially on the respective flow rate of the raw gas. Due to the deflection effect of the baffle plate 9 of the raw gas flow, the raw gas is distributed to all sides of the baffle plate 9 in the raw gas space relatively evenly, the fine dust particles in the raw gas are kept floating by the suction in the clean gas line 5 and then in the direction of the filter drum shell or against a homogeneous filter layer 10, not visible here, sucked.
  • the used filter medium is depending on
  • the filter material may also be made of another similar material having the same filter characteristics.
  • the bottom 6 "of the filter drum 6 is closed with a filter medium and can optionally be exchanged .
  • a turntable 6 'with a drive is arranged on the circumference of the filter drum via which the filter drum is driven by means of a drive element not shown here
  • the top surface of the filter drum 6 is open at the top, so that the cleaned gas can be sucked out of the clean gas region 18.
  • the elongate blow-off element 4 projects through this cover surface into the interior of the filter drum, wherein the opening of the blow-off element 4 is designed as an elongated slot nozzle 4 'whose outlet opening is arranged in the immediate vicinity of the gas-permeable jacket surface of the filter drum 6.
  • the blower 4 or lance is with a relatively high
  • the pressure within the elongated nozzle 4 can be kept approximately constant at all exit points of the gas stream, so that the filter material is evenly blown through at all points of the shell, thereby ensuring a uniform cleaning of the fixed dust particles in the blow-off 22 is.
  • the lance 4 are transverse to the longitudinal axis of the lance a plurality of blowpipes having a predetermined diameter and distance from each other, which need not be uniform, arranged, from which the gas can escape and thus take over the function of the elongated nozzle 4 ' can.
  • the attached filter layer 10 of the jacket wall thus becomes with each rotation of the filter drum freed from attached dust particles.
  • the clean gas space 18 is arranged, in which, as a result of the suction action of the clean gas line 5, a certain negative pressure (pi) is generated.
  • the pressure (p a ) in the raw gas space 17 and the pressure (p,) in the overlying clean gas area 18 are measured.
  • control measures are automatically taken, eg. B. increasing the speed of the filter drum 6 or increasing the firing order of the pulsed Abblasdüse 4 or increasing the
  • the dust particles located in the blow-off region 22 settle over time in the lower region 16 of this cavity and are supplied to a dust container 25 provided for this purpose, or the exhaust air is supplied via the
  • Fig. 5 shows a schematic sectional plan view of a quadrangular housing 2 along the section line A - A of Fig. 4. In this present
  • Embodiment of a quadrangular housing 2 is positioned approximately in the middle of the filter drum 6, in which projects the blow-off 4.
  • Blow-off 4 is a box with an elongate nozzle 4 'arranged.
  • the elongated nozzle 4 ' can also be replaced by a series of mutually arranged blowpipes, which depends in detail on the application.
  • the pressures in the blowing member 4, and the exit velocities of the gas streams from the nozzle or the blowpipes are variable adjustable and depend on the degree of dust occupancy of the filter material at the
  • the filter drum 6 consists in the simplest embodiment of a
  • cylindrical shell which is gas permeable and on one side, either inside or outside, a filter layer with a special filter material
  • the distance (b) between the drum wall 6 and the outlet of the nozzle 4 ' is variably adjustable, so that at least the core of the
  • Gas Ausströmkegels from the nozzle 4 ' is not too wide and leads into the center of the inlet opening 27, which is also supported by a lip seal 28.
  • the inlet opening 27 is on the one hand by the folded dividers 21, 21 'limited to the ends of which a sealing or cleaning element 24, 24' is arranged.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

La présente invention concerne un système de filtration (1) qui est disposé dans un boîtier (2). Dans ce boîtier (2) se trouve, à peu près au centre, un filtre rotatif (6) dont la surface extérieure est recouverte d'un milieu filtrant. L'intérieur du boîtier (2) est divisé en trois zones de pression (17, 18, 22). Le gaz brut à purifier est amené à la zone de gaz de brut (17) par un orifice d'entrée de gaz brut (8). Selon l'invention, le flux de gaz vient frapper, à son entrée dans la chambre de gaz brut (17), un élément d'impact (9), ce qui confère de fortes turbulences au flux de gaz. Une opération de nettoyage est effectuée à chaque rotation du tambour de filtration en détachant par soufflage la matière à filtrer présente sur la surface extérieure du tambour de filtration (6).
PCT/DE2013/000617 2013-10-17 2013-10-17 Système de filtration à filtre rotatif WO2015055157A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/DE2013/000617 WO2015055157A1 (fr) 2013-10-17 2013-10-17 Système de filtration à filtre rotatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2013/000617 WO2015055157A1 (fr) 2013-10-17 2013-10-17 Système de filtration à filtre rotatif

Publications (1)

Publication Number Publication Date
WO2015055157A1 true WO2015055157A1 (fr) 2015-04-23

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ID=49943080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2013/000617 WO2015055157A1 (fr) 2013-10-17 2013-10-17 Système de filtration à filtre rotatif

Country Status (1)

Country Link
WO (1) WO2015055157A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109772079A (zh) * 2017-11-15 2019-05-21 大连兆和环境科技股份有限公司 高效置换式再循环通风集群系统
CN110202875A (zh) * 2019-07-09 2019-09-06 江苏瀚霆环保滤材有限公司 一种用于钢铁生产的高炉煤气用针刺毡
CN111014097A (zh) * 2019-12-09 2020-04-17 江苏伯能机床制造有限公司 一种机床加工用除尘装置
CN111330400A (zh) * 2020-03-30 2020-06-26 路敏 单机湿式除尘器
CN116637458A (zh) * 2023-06-27 2023-08-25 紫科装备股份有限公司 一种泛半导体行业含油低浓度VOCs废气治理工艺及设备
CN116747642A (zh) * 2023-08-14 2023-09-15 山东中科医药科技有限公司 一种具有烟尘处理功能的安全过滤器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703945A1 (de) 1968-08-03 1972-06-08 Impex Essen Vertrieb Bolzensetzgeraet
FR2304386A1 (fr) * 1975-03-20 1976-10-15 Alsthom Cgee Depoussiereur industriel a tambour
DE2626789A1 (de) * 1975-08-08 1977-02-17 Brunswick Corp Verfahren zur entfernung von partikeln aus einem gasstrom
DE3608741A1 (de) 1986-03-15 1987-11-19 Karl Wilh Ludwig Quaschner Rotationsfilter
DE3730980A1 (de) 1986-11-17 1988-05-26 Luwa Ag Mit einer selbstreinigungseinrichtung ausgestatteter filterapparat fuer einen gasstrom
EP0378100A1 (fr) * 1989-01-10 1990-07-18 Peter Wetter Filtre à tambour

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703945A1 (de) 1968-08-03 1972-06-08 Impex Essen Vertrieb Bolzensetzgeraet
FR2304386A1 (fr) * 1975-03-20 1976-10-15 Alsthom Cgee Depoussiereur industriel a tambour
DE2626789A1 (de) * 1975-08-08 1977-02-17 Brunswick Corp Verfahren zur entfernung von partikeln aus einem gasstrom
DE3608741A1 (de) 1986-03-15 1987-11-19 Karl Wilh Ludwig Quaschner Rotationsfilter
DE3730980A1 (de) 1986-11-17 1988-05-26 Luwa Ag Mit einer selbstreinigungseinrichtung ausgestatteter filterapparat fuer einen gasstrom
EP0378100A1 (fr) * 1989-01-10 1990-07-18 Peter Wetter Filtre à tambour

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109772079A (zh) * 2017-11-15 2019-05-21 大连兆和环境科技股份有限公司 高效置换式再循环通风集群系统
CN109772079B (zh) * 2017-11-15 2023-12-19 苏州兆和空气系统股份有限公司 高效置换式再循环通风集群系统
CN110202875A (zh) * 2019-07-09 2019-09-06 江苏瀚霆环保滤材有限公司 一种用于钢铁生产的高炉煤气用针刺毡
CN110202875B (zh) * 2019-07-09 2024-03-29 江苏瀚霆环保滤材有限公司 一种用于钢铁生产的高炉煤气用针刺毡
CN111014097A (zh) * 2019-12-09 2020-04-17 江苏伯能机床制造有限公司 一种机床加工用除尘装置
CN111014097B (zh) * 2019-12-09 2021-12-07 荣成荣盛橡胶机械有限公司 一种机床加工用除尘装置
CN111330400A (zh) * 2020-03-30 2020-06-26 路敏 单机湿式除尘器
CN111330400B (zh) * 2020-03-30 2023-09-19 路敏 单机湿式除尘器
CN116637458A (zh) * 2023-06-27 2023-08-25 紫科装备股份有限公司 一种泛半导体行业含油低浓度VOCs废气治理工艺及设备
CN116637458B (zh) * 2023-06-27 2024-01-16 紫科装备股份有限公司 一种泛半导体行业含油低浓度VOCs废气治理工艺及设备
CN116747642A (zh) * 2023-08-14 2023-09-15 山东中科医药科技有限公司 一种具有烟尘处理功能的安全过滤器
CN116747642B (zh) * 2023-08-14 2023-10-20 山东中科医药科技有限公司 一种具有烟尘处理功能的安全过滤器

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