WO2002043835A1 - Filtereinheit zum reinigen von staubbeladener prozessluft - Google Patents
Filtereinheit zum reinigen von staubbeladener prozessluft Download PDFInfo
- Publication number
- WO2002043835A1 WO2002043835A1 PCT/DE2000/004254 DE0004254W WO0243835A1 WO 2002043835 A1 WO2002043835 A1 WO 2002043835A1 DE 0004254 W DE0004254 W DE 0004254W WO 0243835 A1 WO0243835 A1 WO 0243835A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- dust
- hose
- filter unit
- air space
- 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
- B01D46/66—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
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 disadvantage of these solutions is that only the outer surfaces of the filter bags are cleaned of adhering dust and product particles.
- dust filters are known in which washing nozzles are arranged in the areas of the hose openings in the clean air space. The water emerging from these washing nozzles and the detached dust and product particles flow through the walls of the filter bags into the dust air space, from where the further drainage takes place. This passage of water and of the dust and product particles through the Filter bags cause an additional clogging of the filter bags from the inside, which reduces their service life and impairs the actual cleaning of the process air.
- the object of the invention is to provide a filter unit for cleaning dust-laden process air, in which the clean air space and / or each filter hose can be cleaned from the inside.
- washing nozzles can be arranged in a filter unit in the clean air space and in the area of the hose opening.
- An advantage of the invention is that contamination in the clean air space and on the inside of the filter bags can be removed without dismantling the filter unit.
- cleaning of the outside of the tube base can also be achieved during the compressed air pulses to repel the filter cake.
- Fig. 1 Basic diagram of a filter unit in section
- Fig. 2 Sectional view of the lower end of the filter hose during a compressed air impulse.
- Fig. 3 Sectional view of the lower end of the filter hose during the occurrence of cleaning fluid
- Fig. 4 Sectional view of the lower end of the filter hose during the filtering phase.
- Fig. 5 Representation of the bottom plate of the filter hose.
- Fig. 6 Representation of the hose opening
- the filter unit for cleaning dust-laden process air consists of the vertically oriented filter housing 1, which is divided into an overhead clean air space 10 and an underlying dust air space 9 by means of a separating floor 2.
- a plurality of hose openings 6 are arranged in the partition 2, in each of which a filter hose 5 which is open towards the clean air space 10 is suspended and projects into the dust chamber 9 hanging under its own weight.
- wash nozzles 3 which can be activated for the washing and which spray the entire clean air chamber 10 with washing water are arranged, and one or more switchable drain valves 11 are arranged in the partition 2 between the filter bags 5.
- At least one outlet valve 7 is arranged on each tube plate 12 of the filter tubes 5.
- the wash water runs into the dust air space 9 virtually without any auxiliary energy or under controlled control.
- the tube sheet 12 is provided with one or more tube sheet openings 14 and these are covered by a valve membrane 13 connected to the tube sheet 12 in a sealing manner in the effective direction of the process air.
- the washing nozzles 3 are operatively connected to a switching valve 4 and its associated control 8.
- the drain valves 11 in the partition 2 are operatively connected to a controller 15.
- the washing nozzles 3 are activated by the switching valve 4 actuated by the control 8, so that the inside of the filter bags 5 and the clean air space 10 are sprayed with washing water and cleaned.
- the drain valves 11 are opened, so that the washing water can flow into the dust air space 9 and from there to the outside of the filter unit or according to a solution, not shown, directly to the outside.
- the washing water entering the filter bags 5 cleans them.
- the wash water arriving at the tube sheet bulges the valve membrane 13 against the tube sheet 12, so that the wash water can flow into the dust air space 9 and from there to the outside of the filter unit, as shown in FIG. 3.
- the valve membrane 13 is pressed again against the tube bottom 12, as a result of which the required sealing of the filter tubes 5 is achieved during the cleaning process.
- the drain valves 11 in the partition 2 are closed.
- outlet valve 7 An additional function of the outlet valve 7 is that the compressed air, in the event of impulses for repelling the filter cake, as shown in FIG. 2, briefly ventilates the valve membrane 13 from the tube bottom 12 by itself. The compressed air flowing out cleans the outside of the tube sheet 12 of impurities.
- each hose opening 6 there is at least one wash nozzle 16 which can be activated for washing and which sprays the inside of the filter hose 5 with washing water and at least one outlet valve 7 on each hose base 12.
- the washing nozzles 16 are operatively connected to a switching valve (not shown) and its associated control.
- the further embodiment and the mode of operation correspond to the first embodiment. In the second solution, however, only the inside of the filter bags 5 are cleaned.
- the tube bottom 12 can be made media-permeable by being made of any material in a sieve-like manner.
- the bottom of the support body, which is arranged outside the filter tube 5, is as a closed surface having a small through hole is formed.
- Hose base 12 incoming wash water immediately penetrates the sieve-like hose base 12 and in particular through the
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2000/004254 WO2002043835A1 (de) | 2000-11-29 | 2000-11-29 | Filtereinheit zum reinigen von staubbeladener prozessluft |
AU2001223511A AU2001223511A1 (en) | 2000-11-29 | 2000-11-29 | Filter unit for purifying dust-laden process air |
EP00987190A EP1372815A1 (de) | 2000-11-29 | 2000-11-29 | Filtereinheit zum reinigen von staubbeladener prozessluft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2000/004254 WO2002043835A1 (de) | 2000-11-29 | 2000-11-29 | Filtereinheit zum reinigen von staubbeladener prozessluft |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002043835A1 true WO2002043835A1 (de) | 2002-06-06 |
WO2002043835A8 WO2002043835A8 (de) | 2003-04-03 |
Family
ID=5648021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/004254 WO2002043835A1 (de) | 2000-11-29 | 2000-11-29 | Filtereinheit zum reinigen von staubbeladener prozessluft |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1372815A1 (de) |
AU (1) | AU2001223511A1 (de) |
WO (1) | WO2002043835A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009030462A1 (de) | 2007-09-04 | 2009-03-12 | Hüttlin Gmbh | Filteranordnung zum reinigen von partikelbelasteten prozessgasen und verfahren zum reinigen von filtereinheiten einer solchen filteranordnung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3623910A (en) * | 1969-11-28 | 1971-11-30 | Flex Kleen Corp | Method and apparatus for laundering dust collectors |
US4731100A (en) * | 1983-05-06 | 1988-03-15 | Henkel Kommanditgesellschaft Auf Aktien | Method and apparatus for washing a plurality of filter elements |
DE4440773A1 (de) * | 1993-11-15 | 1995-05-18 | Hosokawa Micron Ltd | Filtervorrichtung für die Abtrennung von Partikeln oder Pulver aus einem Gasstrom |
-
2000
- 2000-11-29 AU AU2001223511A patent/AU2001223511A1/en not_active Abandoned
- 2000-11-29 EP EP00987190A patent/EP1372815A1/de not_active Withdrawn
- 2000-11-29 WO PCT/DE2000/004254 patent/WO2002043835A1/de not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3623910A (en) * | 1969-11-28 | 1971-11-30 | Flex Kleen Corp | Method and apparatus for laundering dust collectors |
US4731100A (en) * | 1983-05-06 | 1988-03-15 | Henkel Kommanditgesellschaft Auf Aktien | Method and apparatus for washing a plurality of filter elements |
DE4440773A1 (de) * | 1993-11-15 | 1995-05-18 | Hosokawa Micron Ltd | Filtervorrichtung für die Abtrennung von Partikeln oder Pulver aus einem Gasstrom |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009030462A1 (de) | 2007-09-04 | 2009-03-12 | Hüttlin Gmbh | Filteranordnung zum reinigen von partikelbelasteten prozessgasen und verfahren zum reinigen von filtereinheiten einer solchen filteranordnung |
US8231715B2 (en) | 2007-09-04 | 2012-07-31 | Hüttlin Gmbh | Filter arrangement for cleaning process gases contaminated with particles and process for cleaning filter units of such a filter arrangement |
Also Published As
Publication number | Publication date |
---|---|
EP1372815A1 (de) | 2004-01-02 |
AU2001223511A1 (en) | 2002-06-11 |
WO2002043835A8 (de) | 2003-04-03 |
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