WO2002087728A1 - Filtereinheit zum reinigen von staubbeladener prozessluft - Google Patents
Filtereinheit zum reinigen von staubbeladener prozessluft Download PDFInfo
- Publication number
- WO2002087728A1 WO2002087728A1 PCT/DE2002/001459 DE0201459W WO02087728A1 WO 2002087728 A1 WO2002087728 A1 WO 2002087728A1 DE 0201459 W DE0201459 W DE 0201459W WO 02087728 A1 WO02087728 A1 WO 02087728A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- partition
- filter unit
- compressed air
- nozzles
- filter
- Prior art date
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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- 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
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- 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
- B01D46/69—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side without movement with respect to the filter elements, e.g. fixed nozzles
-
- 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
- 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
- B01D46/79—Regeneration of the filtering material or filter elements inside the filter by liquid process
-
- 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
- B01D46/90—Devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration or maintenance
Definitions
- Filter unit for cleaning dust-laden process air.
- the invention relates to a filter unit for cleaning dust-laden process air.
- filter units for cleaning dust-laden process air are known, which are divided by a partition into an overhead clean air space and an underlying dust air space.
- dust filters of this type are known in which means, such as washing nozzles, for cleaning adhering dust and product particles are arranged in the dust air space between the filter bags inside or below the separating floor and operated periodically.
- a compressed air source is arranged above each filter hose, which is used for cleaning the filter hoses from the adhering filtered out dust or product is required during the filtering process.
- a filter for air and gases in which the filter hoses arranged in the dust gas space open into the clean gas space and the cleaned air leaves the filter through an outlet.
- flushing air is blown out of the pressure vessel through the blow-off nozzles of a fixed flushing lance into the mouths of the filter bags by a rapid opening of one of the valves.
- a disadvantage of this solution is that the complex design means that only the outer surfaces of the filter bags can be cleaned of adhering dust and product particles, with several filter bags arranged in a row being cleaned at the same time by means of the washing lances. Cleaning the clean air room is also not feasible.
- the object of the invention is to provide an uncomplicated filter unit for cleaning dust-laden process air, in which the filter bags can be cleaned individually or partially together by air blast and / or the clean gas space and the filter bags can be cleaned from the inside by washing, with the washing nozzles above the clean gas space can also take over the washing function.
- the object is achieved by the features of patent claim 1.
- Advantageous embodiments of the invention are described in claims 2 to 13. It is within the scope of the invention that in addition to the preferably circular movement, the arm can also be moved linearly or in any curve. The arm can also be formed on one side. The use of multi-joint systems is also conceivable for realizing the movements of the arm.
- Filter bags are removable from the clean gas room.
- the cleaning medium and product residues can thus be disposed of outside the filter system.
- the lifting and lowering design of the rotating device or the compressed air nozzles means that the outer surfaces of the rotating device or the compressed air nozzles
- Filter bags reach and also allow work in the air blasts
- the position of the arm relative to the hose openings can be checked by the position measuring device and the position correction device.
- the position measuring device is re-synchronized, as a result of which the compressed air nozzles are precisely positioned above the hose openings for cleaning the filter hoses.
- Fig. 1 Basic representation of a filter unit in section.
- Fig. 2 Detailed sectional view of the clean gas space in the area of the partition, including hanging a filter basket
- the filter unit for cleaning dust-laden process air consists of the vertically oriented filter housing 1, which is divided into an overhead clean gas space 10 and an underlying product gas space 9 by means of a separating base 2.
- a multiplicity of dividing plate openings 13 are made in the dividing plate 2, in each of which a filter hose 5 with a hose opening 6 which is open towards the clean gas chamber 10 is suspended and projects into the product gas chamber 9 under its own weight, the filter hose 5 being shaped by means of a support body 23.
- Each support cage 23 is suspended in the conical taper of the tube wall 18 of the partition opening 13 with its upper annular end that is widened with respect to the support cage 23.
- a rotating arm 19 is arranged in the clean gas space 10 and moves over the entire surface of the partition 2.
- Switchable compressed air nozzles 3 and wash nozzles 8 which can be switched on independently of the compressed air nozzles 3 are arranged to generate the air blast.
- the compressed air nozzles 3 can be activated separately or together when passing over the hose openings 6 during or outside the production cycles.
- the washing nozzles 8 can be activated separately or together outside the production cycles for washing the entire clean gas space 10 and the aggregates arranged therein and / or the inside of the filter bags 5.
- the arm 19 is connected in the middle to a rotating device 4, which is mounted at its other end in the cover of the filter housing 1.
- the media feed lines for the compressed air nozzles 3 and the washing nozzles 8 are arranged within the rotating device 4.
- the media supply line for the compressed air nozzles 3 can be acted on via a shut-off valve 24 and the media supply line for the washing nozzles via a shut-off valve 20.
- each compressed air nozzle 3 is variable in height with respect to the partition 2 or the hose opening 6.
- each compressed air nozzle 3 has a variable-length bellows 22 in the direction of the hose opening 6, which bellows is operatively connected to a control.
- each compressed air nozzle 3 has a membrane 21 which can be acted upon with control air.
- the arm 19 is provided with a position measuring device which is operatively connected to a position correction device.
- the position of the arm 19 relative to the hose openings 6 can thus be checked and, if the position deviates, can be re-synchronized, as a result of which an exact positioning of the compressed air nozzles 3 over the hose openings 6 for cleaning the filter hoses 5 is achieved.
- a channel 7 is preferably arranged in the partition 2 or at its outer edge, the channel 7 having at least one through opening 11 in the filter housing 1 and / or in the partition 2 (not shown) and a downstream shut-off valve 12 for disposal of the cleaning medium and the product residues is in operative connection.
- This channel arrangement has the advantage that the impurities can be disposed of in the clean gas space and the cleaning medium can be carried out directly from the clean gas space without loading the filter bags.
- the partition 2 can also be designed as a hollow body which consists of an upper and a lower partition plate 16, 17 of the partition 2 and a tube wall of the partition opening 13.
- the washing nozzles 8 are arranged in the upper and / or lower partition plate 16, 17 and / or pipe wall 18 of the partition opening 13.
- the hollow body is provided with a switchable switching valve 14 including controller 15 for the washing medium.
- the tube wall 18 of the partition opening 13 is preferably conical, the taper opening in the direction of the product gas space 9.
- the conical tube wall 18 acts as an additional injector in the form of a Venturi nozzle when the associated one
- Compressed air nozzle 3 is located above to perform a pressure surge.
- Partition opening 13 preferably centrally, is positioned.
- This positioning of the compressed air nozzles 3 can alternatively also be achieved, for example, by the telescopic rotating device 4.
- a support basket 23 is arranged in each filter hose 5, the upper ring-shaped end of which is widened relative to the support basket 23 and is suspended in the conical taper of the tube wall 18.
- the arm 19 preferably rotates continuously over the hose openings 6, which are arranged in a grid in the separating tray 2 which is coordinated with the compressed air nozzles 3.
- a compressed air nozzle 3 passes over the area of the hose opening, the bellows 22 is acted upon by the media as a result of a control command, as a result of which it extends (left-hand illustration in FIG. 2) and thus moves directly above the hose opening 6.
- the membrane 21 is switched off by the control air present, as a result of which the membrane 21 releases the compressed air for cleaning the outer surface of the filter hose 6.
- the cleaning of dust-laden process air in the filter unit is interrupted at predetermined periodic intervals.
- the washing nozzles 8 on the arm 19 by the over Control actuated switching valve 20 activated so that the clean gas space 10 and the units arranged therein are sprayed with cleaning medium, such as washing water, and cleaned.
- cleaning medium such as washing water
- the cleaning medium and the product residues run off on the inner wall of the filter housing 1 and the aggregates and collect directly in the channel 7 and via a drain on the partition 2 in the channel 7 or in further channels 7.
- the cleaning medium runs through the controlled opening of the shut-off valve 12 and the product residues from the clean gas space 10. This is where the cleaning medium and product residues are disposed of outside the filter system.
- the arrangement of the washing nozzles 8 on the upper and lower dividing plate 16 and 19 and in the tube wall 18 enables both the clean gas space 10 and the product gas space 9 and the units arranged therein to be washed.
- the approach of the compressed air nozzle 3 to the hose opening 6 is implemented by raising and lowering the arm 19 with all the compressed air nozzles 3 arranged thereon by means of, for example, pneumatically actuated telescopic cylinders.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02742686A EP1381444A1 (de) | 2001-04-26 | 2002-04-20 | Filtereinheit zum reinigen von staubbeladener prozessluft |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10120603A DE10120603A1 (de) | 2001-04-26 | 2001-04-26 | Filtereinheit zum Reinigen von staubbeladener Prozessluft |
DE10120603.8 | 2001-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002087728A1 true WO2002087728A1 (de) | 2002-11-07 |
Family
ID=7682897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/001459 WO2002087728A1 (de) | 2001-04-26 | 2002-04-20 | Filtereinheit zum reinigen von staubbeladener prozessluft |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1381444A1 (de) |
DE (1) | DE10120603A1 (de) |
WO (1) | WO2002087728A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104267679A (zh) * | 2014-09-15 | 2015-01-07 | 大唐保定热电厂 | 电厂除尘设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2521828A1 (de) * | 1975-05-16 | 1976-11-25 | Mikropul Mahl & Staubtech Gmbh | Verfahren und anlage zum abreinigen von filtereinsaetzen fuer gasfilter |
US4655799A (en) * | 1985-02-06 | 1987-04-07 | Mac Equipment, Inc. | Pulse cleaning system for dust filters |
DE4440773A1 (de) * | 1993-11-15 | 1995-05-18 | Hosokawa Micron Ltd | Filtervorrichtung für die Abtrennung von Partikeln oder Pulver aus einem Gasstrom |
US6149716A (en) * | 1997-10-31 | 2000-11-21 | Niro A/S | Method of cleaning a filter unit, and a filter unit for filtering gas |
DE19946310A1 (de) * | 1999-09-28 | 2001-04-19 | Matthias Luebbers | Filtereinheit zum Reinigen von staubbeladener Prozessluft |
-
2001
- 2001-04-26 DE DE10120603A patent/DE10120603A1/de not_active Withdrawn
-
2002
- 2002-04-20 WO PCT/DE2002/001459 patent/WO2002087728A1/de not_active Application Discontinuation
- 2002-04-20 EP EP02742686A patent/EP1381444A1/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2521828A1 (de) * | 1975-05-16 | 1976-11-25 | Mikropul Mahl & Staubtech Gmbh | Verfahren und anlage zum abreinigen von filtereinsaetzen fuer gasfilter |
US4655799A (en) * | 1985-02-06 | 1987-04-07 | Mac Equipment, Inc. | Pulse cleaning system for dust filters |
DE4440773A1 (de) * | 1993-11-15 | 1995-05-18 | Hosokawa Micron Ltd | Filtervorrichtung für die Abtrennung von Partikeln oder Pulver aus einem Gasstrom |
US6149716A (en) * | 1997-10-31 | 2000-11-21 | Niro A/S | Method of cleaning a filter unit, and a filter unit for filtering gas |
DE19946310A1 (de) * | 1999-09-28 | 2001-04-19 | Matthias Luebbers | Filtereinheit zum Reinigen von staubbeladener Prozessluft |
Also Published As
Publication number | Publication date |
---|---|
DE10120603A1 (de) | 2002-10-31 |
EP1381444A1 (de) | 2004-01-21 |
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