US20090119870A1 - Device For Collecting Dust Particles Or Residual Material In An Airflow - Google Patents

Device For Collecting Dust Particles Or Residual Material In An Airflow Download PDF

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Publication number
US20090119870A1
US20090119870A1 US11/792,262 US79226205A US2009119870A1 US 20090119870 A1 US20090119870 A1 US 20090119870A1 US 79226205 A US79226205 A US 79226205A US 2009119870 A1 US2009119870 A1 US 2009119870A1
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US
United States
Prior art keywords
bag
collection drum
cyclone
cone
casing
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US11/792,262
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English (en)
Inventor
Ralf Nilsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ERMATOR AB
Original Assignee
ERMATOR AB
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 ERMATOR AB filed Critical ERMATOR AB
Assigned to ERMATOR AB reassignment ERMATOR AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NILSSON, RALF
Publication of US20090119870A1 publication Critical patent/US20090119870A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B04C5/185—Dust collectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B04C2009/002—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external filters

Definitions

  • the invention relates to a device for collecting particles that are generated, for example, during abrasive processes of various kinds, for example dust particles that are released during sanding using sanding machines or during handling of residual material and the like.
  • all kinds of dry residual material can generally be collected up, including residual material that is generated in, for example, joineries or hairdressing salons.
  • Residual material is generated and/or handled in many work elements that are carried out on a building. These work elements can be cutting, drilling, cleaning (light/heavy), decontamination, various kinds of sanding including sanding floors, handling of demolition materials such as joist fillings and excavated material from cellars, etc.
  • Residual material can contain anything from pieces of wallpaper, fine cement dust, nails and screws to bricks and pieces of concrete, and thus comprises both material that can be sucked up and material that cannot be sucked up. What is common to all residual material is that it forms dust and can thereby cause the dispersal of particles of material that are harmful to health.
  • An arrangement with a tube-shaped filter in combination with a cyclone device is already known as a coarse filter for a first filtration with the removal and collection of the largest particles of dust in a collection device of the type described above. Remaining particles are then collected by means of additional filters, such as fine filters, microfilters or absolute filters. Collecting means of this type are often constructed with a cone that has a valve or a trapdoor in the bottom that is opened after the vacuum that is present in the cone while it is in operation has been switched off. The particles then fall down into a bag or a tubular bag system and as a rule the bag is changed and the filter is cleaned when the emptying is carried out.
  • a reason for the arrangement with the valve or trapdoor is to avoid the danger of the bag being sucked up into the cone and imploding.
  • a disadvantage of this solution is, however, that the capacity of the collecting means is dependent upon the volume of the cone. When the cone is full, it is necessary to switch off and allow it to empty. If the cone has a greater volume than the bag, there is no room for the particles of dust and spillages then often arise when the bag is to be changed. This is not acceptable for reasons of health, in particular if the dust includes particles of harmful substances such as asbestos, silica or PCB. It is also difficult to know how much dust is in the cone prior to switching off the vacuum in the cone. Similarly, it can be difficult to empty the cone after sucking up certain materials such as dust from sanding wood or grinding concrete, which can be due to the dust being statically charged or can be due to the dust having been compacted in the cone by the vacuum.
  • the object of the invention is therefore to achieve a device of the kind mentioned in the introduction that makes it possible to solve the problems described in the introduction. This is possible with a device of the kind described in the introduction that has the characteristics that are described in the following patent claims. Advantageous further developments and improvements of the invention are apparent from the description and the independent claims.
  • FIG. 1 shows a vertical view in cross section through the device for collecting particles according to the invention, with an extraction duct extending between the collection drum and the vacuum chamber/distribution box.
  • the collecting means is constructed of a casing 2 designed as a vertical box or cylinder with a suitable cross section, which, starting at the top, comprises a vacuum chamber 4 , which, in turn, is connected where applicable via a coarse filter package 5 to a cyclone device 6 and a collection drum 8 for depositing dust particles in a bag.
  • the bag can, for example, be constructed as a plastic film bag in a tubular bag system.
  • the collecting means can be constructed of metal, for example steel or aluminium, or of plastic material, for example glass-fibre reinforced plastic or some other suitable material.
  • a large filter surface is desirable while at the same time there should be little risk of the filter blocking, that is the filter should have a long life.
  • Folded paper filters have a large filter surface but they block relatively quickly, due to the filter surface becoming smaller as the folds fill with fine dust. Cleaning is inconvenient and can be difficult to carry out without damaging the filter.
  • Conventional filter bags are usually completely cylindrical with a circular cross section and filtration can be carried out either inwards or outwards. As such a filter bag has smooth filter surfaces, it is less subject to becoming blocked.
  • the vacuum chamber 4 can therefore be designed as a distribution box for a coarse filter package 5 of conventional type connected between the distribution box and the cyclone device, which coarse filter package contains a suitable number of known single-wall filter cartridges 9 or cloth filter bags 9 of already known type attached either at the top or at the base.
  • the vacuum chamber 4 has a connection 10 to a vacuum source (not shown), either a direct-mounted motorized fan with control unit and fine filter in the form of a microfilter or absolute filter, or an external dust extractor with filter, which is connected via pipes or hoses.
  • connection 10 to the vacuum source is only shown centrally arranged on the vacuum chamber 4 in the drawing as an example, and it is possible to arrange it in any position, including on the side of the casing 2 , provided that the connection is located on the “clean” side, that is the outlet side of the coarse filter package.
  • the coarse filter package 5 can either be incorporated in the vacuum chamber 4 or can be arranged in the external dust extractor.
  • the cyclone device 6 has a tangential inlet 11 on one side of the casing 2 in the conventional way to achieve a cyclone effect in association with a cone arrangement connected to the inlet to bring about the separation and collection of particles.
  • the cone arrangement has, however, two interacting cones.
  • the cyclone funnel chamber 14 is also suitably shaped as a cylinder with a circular cross section that is connected at the top to the external outer surface of the first cone 12 and becomes at the bottom a second cone 16 that tapers downwards with a relatively small conical angle, in the embodiment illustrated a lower cone 16 that extends towards the collection drum 8 and opens out into the collection drum at an outlet 18 .
  • the lower part of the first cone 12 that faces towards the collection drum 8 opens out at its cyclone centre part 13 into the second cone 16 approximately on a level with the transition from the cyclone funnel chamber 14 .
  • the speed and pressure of the airflow decrease, which airflow is distributed in a funnel chamber or distribution box thus formed between the first cone 12 and the filter package 9 .
  • a significant part of the fine dust is dropped in the first cone 12 (the funnel 12 ) and can fall down through the cyclone centre part 13 and the outlet 18 .
  • the dust that remains is trapped by the coarse filter package 9 , when the airflow reaches and passes through the coarse filter package before the airflow leaves the collecting means through the connection 10 to the vacuum source (not shown).
  • cleaning of the coarse filter package 9 can be carried out in a corresponding way, as described briefly in the third paragraph from the end of the description. Accordingly the fine dust trapped by the coarse filter package 5 falls down from the coarse filter package 9 into the funnel 12 and leaves the funnel together with the remainder of the fine dust that was previously dropped in the funnel 12 and falls down through the cyclone centre part 13 and the outlet 18 .
  • concentrated dust particles thus fall down through the outlet 18 and through a known holder or a hopper 20 mounted in association with the outlet, to a bag 22 attached to the outlet 18 and arranged in the collection drum 8 .
  • the hopper can, for example, be designed to hold a conventional tubular bag of plastic film.
  • the collection drum 8 comprises a casing 30 formed by a wall arrangement 24 , a bottom 26 and a lid 28 , which is thereby sealed against the atmosphere around the bag 22 that is attached to the outlet.
  • a door 32 that forms a seal is arranged in the casing 30 of the collection drum, in such a way that it can be opened and closed easily in a known way.
  • the door is advantageously provided with a transparent window 34 or alternatively the whole door is constructed of transparent material, whereby it is possible to determine easily when it is time to change the bag 22 .
  • the collection drum 8 is connected to the vacuum chamber 4 via a duct, for example an extraction duct 36 .
  • the duct 36 can be designed in a suitable way on the inside of the casing 30 , for example as a hose or a pipe, for example of metal or plastic of a particular diameter.
  • the duct has a predetermined diameter that affects the speed of the procedure described below. Tests have shown that a suitable diameter of the duct 36 should as a rule lie within the range 15-30 mm in order to ensure a reliable function for the most common sizes of collecting means.
  • the duct makes it possible to create a lower pressure on the outside of the bag than on its inside, which in turn means that the bag is pressed towards the wall arrangement 24 and bottom 26 of the collection drum 8 as a result of the higher pressure inside the bag, so that the dust particles can fall directly down to the bottom of the bag without obstruction.
  • the container or hopper 20 for a conventional tubular bag of plastic film (not shown) is mounted in such a way that it surrounds the outlet 18 .
  • the pressure difference between the first pressure and the second pressure not only to press the bag against the wall arrangement 24 and bottom 26 of the collection drum, but also to draw out a new plastic film from the hopper automatically when a filled plastic film bag has been closed, separated off and removed from the collection drum 8 through the door 32 in the conventional way.
  • Drawing out of the plastic film tube is carried out in such a way that the plastic film tube that is closed at its free end during closing of the filled bag, is “blown out” from the hopper 20 after closing of the door 32 and continues to be drawn out until it forms a new bag 22 that is pressed toward the wall arrangement 24 and bottom 26 of the collection drum and is ready to be filled with dust particles.
  • An important advantage of the collecting means according to the invention is that the whole of this procedure comprising closing, separating and removal of a filled bag and drawing out of the plastic film tube so that it forms a new bag for continued collection can be carried out essentially without any spillage of dust particles. That is, practically all the particles are enclosed by means of the tubular bag system so that the risk of harmful substances escaping into the surroundings are reduced to a minimum.
  • the inlet to the cyclone funnel chamber 14 can be provided with a first valve or shutting-off valve 38 .
  • a second valve or separating valve 40 can be arranged in the connection 10 between the fine filter and the vacuum chamber of the distribution box on the outlet side of the coarse filter package, which second valve can be closed to separate the fine filter from the coarse filter package 5 .
  • the distribution box or vacuum chamber 4 can be provided with a third valve or atmospheric air valve 42 for admitting atmospheric air, mounted in such a way that it is directed towards and/or admits atmospheric air to the outlet side of the coarse filter package 5 .
  • the coarse filter package 5 and/or the cyclone device 6 can be omitted, whereby the collection drum 8 can be used separately, for example when it is just a matter of sucking up and handling residual material such as, for example, hair clippings in hairdressing salons or wood chips in joineries.
  • the collection drum 8 can, of course, be combined with any filter units and/or cyclone devices of varying designs.
  • the collection drum 8 can instead be omitted completely or can have a different function, in cases when, for example, the cyclone device is provided in a conventional way with a valve or hatch that is opened manually or automatically for emptying into a tubular bag system or into a container of another kind, when the collecting means is switched off.
  • the cyclone device is provided in a conventional way with a valve or hatch that is opened manually or automatically for emptying into a tubular bag system or into a container of another kind, when the collecting means is switched off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cyclones (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
US11/792,262 2004-12-08 2005-12-07 Device For Collecting Dust Particles Or Residual Material In An Airflow Abandoned US20090119870A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0402992.2 2004-12-08
SE0402992A SE529547C2 (sv) 2004-12-08 2004-12-08 Anordning för uppsamling av stoftpartiklar eller restmaterial
PCT/SE2005/001848 WO2006062472A1 (en) 2004-12-08 2005-12-07 Device for collecting dust particles or residual material in an airflow.

Publications (1)

Publication Number Publication Date
US20090119870A1 true US20090119870A1 (en) 2009-05-14

Family

ID=33550616

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/792,262 Abandoned US20090119870A1 (en) 2004-12-08 2005-12-07 Device For Collecting Dust Particles Or Residual Material In An Airflow

Country Status (4)

Country Link
US (1) US20090119870A1 (de)
EP (1) EP1835996A1 (de)
SE (1) SE529547C2 (de)
WO (1) WO2006062472A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090056290A1 (en) * 2007-09-05 2009-03-05 Jang-Keun Oh Cyclone dust-separating apparatus of vacuum cleaner
US9149165B2 (en) 2012-03-08 2015-10-06 Bissell Homecare, Inc. Vacuum cleaner and vacuum cleaner system
CN105252416A (zh) * 2015-09-09 2016-01-20 天津市华天世纪机械有限公司 一种外圆抛光机装置
WO2016165612A1 (zh) * 2015-04-15 2016-10-20 向桂南 一种吸尘器
CN107344334A (zh) * 2017-08-15 2017-11-14 贵州金韵乐器有限公司 一种木质乐器生产用除尘设备
WO2018208711A1 (en) * 2017-05-08 2018-11-15 Seitz Michael W Detachable bin for modular cleaner system for airborne dust
US20180374589A1 (en) * 2015-07-23 2018-12-27 Tsinghua University A system for continuously preparing coated particles in a large scale
CN112476248A (zh) * 2020-11-27 2021-03-12 无锡金铭祥机械有限公司 一种打磨设备外置防尘集料装置
CN112518588A (zh) * 2020-11-27 2021-03-19 无锡金铭祥机械有限公司 一种打磨封尘罩
US11458485B2 (en) * 2019-07-03 2022-10-04 Oneida Air Systems, Inc. Dust collector with negative pressure bagging
US11547257B2 (en) 2020-02-04 2023-01-10 Dustless Depot, Llc Vacuum bag with inlet gasket and closure seal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100764753B1 (ko) 2007-07-18 2007-10-08 주식회사 명진 원심 여과형 백필터 집진기
CN112171460A (zh) * 2020-09-29 2021-01-05 杭州恒逍家具有限公司 一种可调节高度和打包的环保打磨装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653190A (en) * 1970-02-11 1972-04-04 Clarkson Ind Inc Vacuum cleaners
US3755992A (en) * 1972-03-15 1973-09-04 L Ylinen Lawn vacuum cleaning and packing apparatus
US3895929A (en) * 1971-07-19 1975-07-22 Ilmeg Ab Device for collecting drill dust
US4811453A (en) * 1987-06-25 1989-03-14 Jacques Lubraniecki Vacuum cleaner with an airtight flexible bag
US4921510A (en) * 1984-10-03 1990-05-01 Arnold Plooy Vacuum cleaner system
US5090976A (en) * 1990-09-21 1992-02-25 Notetry Limited Dual cyclonic vacuum cleaner with disposable liner
US5145499A (en) * 1990-09-21 1992-09-08 Notetry Limited Disposable bin for cyclonic vacuum
US6178590B1 (en) * 2000-03-20 2001-01-30 Lindsay Manufacturing, Inc. Vacuum cleaner cannister with removable bag
US20050125943A1 (en) * 2002-03-08 2005-06-16 Goran Sjoberg Device for a vacuum cleaner
US7717973B2 (en) * 2007-09-05 2010-05-18 Samsung Gwangju Elecetronics Co., Ltd. Cyclone dust-separating apparatus of vacuum cleaner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418010A (en) * 1972-12-08 1975-12-17 Thorne Son Ltd J B Gas filtration apparatus
SE521837C2 (sv) * 1996-11-13 2003-12-09 Johann Haberl Förfarande och anordning för uppsamling ur en gasström avskilda material
SE9801806D0 (sv) * 1998-05-14 1998-05-14 Johann Haberl Uppsamlingsbehållare

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653190A (en) * 1970-02-11 1972-04-04 Clarkson Ind Inc Vacuum cleaners
US3895929A (en) * 1971-07-19 1975-07-22 Ilmeg Ab Device for collecting drill dust
US3755992A (en) * 1972-03-15 1973-09-04 L Ylinen Lawn vacuum cleaning and packing apparatus
US4921510A (en) * 1984-10-03 1990-05-01 Arnold Plooy Vacuum cleaner system
US4811453A (en) * 1987-06-25 1989-03-14 Jacques Lubraniecki Vacuum cleaner with an airtight flexible bag
US5090976A (en) * 1990-09-21 1992-02-25 Notetry Limited Dual cyclonic vacuum cleaner with disposable liner
US5145499A (en) * 1990-09-21 1992-09-08 Notetry Limited Disposable bin for cyclonic vacuum
US6178590B1 (en) * 2000-03-20 2001-01-30 Lindsay Manufacturing, Inc. Vacuum cleaner cannister with removable bag
US20050125943A1 (en) * 2002-03-08 2005-06-16 Goran Sjoberg Device for a vacuum cleaner
US7717973B2 (en) * 2007-09-05 2010-05-18 Samsung Gwangju Elecetronics Co., Ltd. Cyclone dust-separating apparatus of vacuum cleaner

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7717973B2 (en) * 2007-09-05 2010-05-18 Samsung Gwangju Elecetronics Co., Ltd. Cyclone dust-separating apparatus of vacuum cleaner
US20090056290A1 (en) * 2007-09-05 2009-03-05 Jang-Keun Oh Cyclone dust-separating apparatus of vacuum cleaner
US9149165B2 (en) 2012-03-08 2015-10-06 Bissell Homecare, Inc. Vacuum cleaner and vacuum cleaner system
US9717380B2 (en) 2012-03-08 2017-08-01 Bissell Homecare, Inc. Vacuum cleaner
US10398268B2 (en) 2012-03-08 2019-09-03 Bissell Homecare, Inc. Vacuum cleaner
WO2016165612A1 (zh) * 2015-04-15 2016-10-20 向桂南 一种吸尘器
US20180374589A1 (en) * 2015-07-23 2018-12-27 Tsinghua University A system for continuously preparing coated particles in a large scale
CN105252416A (zh) * 2015-09-09 2016-01-20 天津市华天世纪机械有限公司 一种外圆抛光机装置
WO2018208711A1 (en) * 2017-05-08 2018-11-15 Seitz Michael W Detachable bin for modular cleaner system for airborne dust
CN107344334A (zh) * 2017-08-15 2017-11-14 贵州金韵乐器有限公司 一种木质乐器生产用除尘设备
US11458485B2 (en) * 2019-07-03 2022-10-04 Oneida Air Systems, Inc. Dust collector with negative pressure bagging
US11547257B2 (en) 2020-02-04 2023-01-10 Dustless Depot, Llc Vacuum bag with inlet gasket and closure seal
CN112476248A (zh) * 2020-11-27 2021-03-12 无锡金铭祥机械有限公司 一种打磨设备外置防尘集料装置
CN112518588A (zh) * 2020-11-27 2021-03-19 无锡金铭祥机械有限公司 一种打磨封尘罩

Also Published As

Publication number Publication date
SE0402992D0 (sv) 2004-12-08
SE529547C2 (sv) 2007-09-11
SE0402992L (sv) 2006-06-09
WO2006062472A1 (en) 2006-06-15
EP1835996A1 (de) 2007-09-26

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ERMATOR AB, SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NILSSON, RALF;REEL/FRAME:022295/0745

Effective date: 20080528

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION