EP2140066A1 - Cleaning apparatus - Google Patents
Cleaning apparatusInfo
- Publication number
- EP2140066A1 EP2140066A1 EP08735825A EP08735825A EP2140066A1 EP 2140066 A1 EP2140066 A1 EP 2140066A1 EP 08735825 A EP08735825 A EP 08735825A EP 08735825 A EP08735825 A EP 08735825A EP 2140066 A1 EP2140066 A1 EP 2140066A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- unit
- jet
- belt
- agent
- 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.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 97
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000013043 chemical agent Substances 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005470 impregnation Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000000123 paper Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 2
- 238000009950 felting Methods 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000013543 active substance Substances 0.000 abstract 1
- 230000037074 physically active Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 7
- 230000003750 conditioning effect Effects 0.000 description 5
- 238000011109 contamination Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/32—Washing wire-cloths or felts
- D21F1/325—Washing wire-cloths or felts with reciprocating devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/34—Construction or arrangement of spraying pipes
Definitions
- the invention relates to a device for cleaning an endlessly circulating belt of a machine for producing and / or finishing a paper, cardboard or other fibrous web, comprising a cleaning unit for dispensing at least one cleaning jet in at least one cleaning section.
- Another possibility is to control deposits on the drying wire by continuously spraying a chemical cleaning or conditioning agent onto the surface of the wire.
- a conditioning agent for example, silicone or a cationic polymer is used.
- the application takes place either by means of spray tube and individual fan nozzles or by means of at least one traversing and / or rotating nozzle. In both cases, the entire width of the dryer fabric is treated with the same intensity.
- WO-A2 2005/094403 describes a cleaning device for cleaning a transfer belt between the press section and the dryer section. The cleaning takes place here by means of traversing or oscillating nozzles, which are indicated with "Shower for chemicals”.
- DE-A1 10 2004 022 954 describes a method and a device for cleaning a circulating belt, in particular a drying wire.
- a combined treatment of the circulating belt by means of at least one cleaning jet and at least one additive jet for chemical treatment is disclosed. Both types of spray can be moved transversely to the direction of tape travel preferably traversing.
- the chemical treatment described here is used for conditioning, passivation or impregnation treatment of the already cleaned surface of the tape. This is to counteract rapid re-pollution.
- the object of the invention is achieved with a device according to claim 1.
- At least one additional unit is provided with at least one spray nozzle for dispensing a chemical agent assisting the cleaning action of the cleaning jet or preparing the cleaning in a preparation section.
- Impurities such as e.g. Stickies or deposits of a coating medium for the fibrous web, on the band to be cleaned can be softened, dissolve or even decompose.
- the device according to the invention is thus able to remove even heavy impurities or adhesions completely from the belt to be cleaned. If still conditioning or impregnation is to take place, this is due to the previously achieved complete cleaning better than hitherto feasible and, above all, more effective.
- the preparation section for the application of the chemical agent is at least predominantly, preferably entirely outside the downstream cleaning section. This avoids that the chemical agent is detected by simultaneous cleaning, ie synchronous cleaning of the cleaning jet and washed away without it to the desired effect of chemical agent comes.
- the auxiliary unit is located in front of the cleaning unit.
- the preparation section thus lies with respect to the said cleaning direction before the cleaning section.
- the cleaning unit for applying the cleaning jet has at least one stationary or rotating high-pressure nozzle.
- the auxiliary unit for applying the chemical agent has a standing or non-rotating nozzle.
- This can be configured as a single-substance spray nozzle or as a two-component or multi-substance nozzle.
- the chemical used in the additional unit can also have a physical effect.
- the amount applied over the effective range or the preparation section can be variable, which allows you to react very specific to the soil contamination.
- different chemicals in different composition, concentration or the like are conceivable.
- the physically acting agent can additionally be used, for example before or after, or simultaneously with the chemically acting agent.
- a spraying of the cleaning agent and the chemical agent into the environment can at least be reduced.
- the cleaning unit and the auxiliary unit each traverse across the width of the belt, that transverse to the direction of the belt. This ensures that all locations across the entire width of the belt are detected by the chemical agent and / or physical agent and by the at least one detergent jet.
- the additional unit with the chemical and / or physical means traverses faster than the high-pressure cleaning unit with the cleaning jet.
- the additional unit and the cleaning unit are arranged in each case on a width of the band spanning traverse. For a particularly stable and compact arrangement is created.
- An alternative embodiment may consist in that a spray pipe is provided for the auxiliary unit which spans the width of the belt to be cleaned and which has a multiplicity of delivery nozzles, preferably two-component or multi-component nozzles, for delivery of the chemical agent. This gives you the opportunity to operate the individual nozzles with different intensity and targeted with regard to the impurities to be removed. Possible in this context is the use of different chemical agents, as already described.
- a further auxiliary unit for dispensing an impregnating agent in particular chemical impregnating agent may be provided.
- This further auxiliary unit is then arranged upstream of the cleaning unit in the running direction of the belt or seen in the cleaning direction across the width of the belt, downstream of the cleaning unit.
- the device according to the invention is suitable for cleaning and, if desired, for impregnating strips of a papermaking or finishing machine.
- the term “tapes” also felts or wires, in particular press felts, dryer fabrics, transfer belts, or other support bands for a papermaking or finishing machine to understand. On clean belts and sieves a fibrous web can be guided better. In addition, thereby occur less breaks of the fibrous web during its manufacturing process. The economy of the manufacturing or finishing machine is thus increased.
- Figure 1 a schematic representation of a cleaning device according to the invention in side view
- FIG. 2 a roughly illustrated plan view of the device shown in FIG.
- FIG. 1 shows a device for cleaning a belt 1 which revolves endlessly in the direction L, which in the example is intended to be a drying wire.
- the belt 2 to be liberated from impurities 1 or adhesions, such as stickies, is assigned a cleaning unit 3, which serves to deliver at least one cleaning jet 4 to the surface of the belt 2.
- a stationary high-pressure nozzle 5 serves to apply the cleaning jet 4. When used in the sieve or the press section, this nozzle would be rotated.
- This auxiliary unit 6 has at least one spray nozzle 7 for delivering a cleaning action of the cleaning jet 3 supporting or cleaning preparatory chemical agent 8. The impurities are thereby dissolved or else already decomposed.
- the auxiliary unit 6 or the spray nozzle 7 for applying the chemical agent 8 is formed in the example as a stationary or non-rotating two-fluid nozzle, which emits the chemical agent 8 with appropriate compressed air.
- the high-pressure cleaning nozzle 5 therefore has a supply line 9, through which water is made available as a cleaning agent or cleaning jet 4 via a pump 10.
- the spray nozzle 3 for the chemical agent 8 receives the chemical used from a reservoir 11 via a separate supply line 12 with pump 13 and valve 14th
- FIG. 1 Shown in the example of Figure 1 also that the cleaning unit 3 and the auxiliary unit 6 are arranged on a common cross member 17.
- the crossbar 17 allows their independent movement or traversing across the width B of the band 2, i. transverse to the direction L of the belt 2 in a direction of movement BR. This is shown in the following Figure 2.
- the auxiliary unit 6 is arranged in front of the cleaning unit 3 in the running direction L of the circulating belt 2 and a preparation section 15 for the subsequent cleaning and a cleaning section 16 exists (see also FIG. 1).
- the preparation section 15 is located outside of the cleaning jet 4 acted upon cleaning section 16.
- the preparation section 15 is located in front of the cleaning section 16 with respect to the direction of movement BR of said nozzles or aggregates 6 and 3.
- a treatment unit 18 may be provided for an impregnating or passivating or conditioning agent.
- This further unit 18 is seen upstream in the direction L of the belt 2 arranged to the cleaning unit 3 and seen in the direction of movement and cleaning BR, downstream of the cleaning unit 3.
Landscapes
- Paper (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200720005670 DE202007005670U1 (en) | 2007-04-19 | 2007-04-19 | Apparatus for cleaning endless revolving belt, e.g. in papermaking machine, includes auxiliary unit for delivering cleaning promoting chemical and/or physical agent upstream of jet cleaning unit |
DE200710018531 DE102007018531A1 (en) | 2007-04-19 | 2007-04-19 | Production machine's rotating belt cleaning device, has auxiliary aggregate in preparation section for delivery of chemically active medium or physically active medium, where preparation section lies completely outside of cleaning section |
PCT/EP2008/054084 WO2008128868A1 (en) | 2007-04-19 | 2008-04-04 | Cleaning apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2140066A1 true EP2140066A1 (en) | 2010-01-06 |
Family
ID=39534823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08735825A Withdrawn EP2140066A1 (en) | 2007-04-19 | 2008-04-04 | Cleaning apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100043843A1 (en) |
EP (1) | EP2140066A1 (en) |
CA (1) | CA2681194A1 (en) |
WO (1) | WO2008128868A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102628238A (en) * | 2012-04-25 | 2012-08-08 | 湖南骏泰浆纸有限责任公司 | Combined chemical cleaning method for pulp beating or papermaking system |
JP6644016B2 (en) * | 2017-03-29 | 2020-02-12 | 株式会社メンテック | Canvas cleaning equipment |
CA3053058C (en) * | 2018-03-30 | 2020-04-28 | Hiroshi Sekiya | Canvas cleaning device, canvas cleaning method and canvas cleaning mechanism |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5961735A (en) * | 1995-06-21 | 1999-10-05 | North Carolina State University | Method of cleaning papermaking felts with enzymes |
DE19702791A1 (en) * | 1997-01-27 | 1998-07-30 | Voith Sulzer Papiermasch Gmbh | Device for cleaning conveyor belt used for transporting e.g. paper or card |
US6099691A (en) * | 1998-03-27 | 2000-08-08 | Beloit Technologies, Inc. | Apparatus for cleaning a papermaking machine forming fabric |
US20050121055A1 (en) * | 2002-07-25 | 2005-06-09 | Karlheinz Straub | Cleaning method |
DE102004022954B4 (en) * | 2004-05-10 | 2009-11-12 | Voith Patent Gmbh | Tape cleaning and treatment |
DE102005022035A1 (en) * | 2004-10-22 | 2006-04-27 | Robo Paper B.V. | Device and method for cleaning a Matrialbahn and method for producing a Speedup Cleaning Heads |
-
2008
- 2008-04-04 EP EP08735825A patent/EP2140066A1/en not_active Withdrawn
- 2008-04-04 CA CA002681194A patent/CA2681194A1/en not_active Abandoned
- 2008-04-04 WO PCT/EP2008/054084 patent/WO2008128868A1/en active Application Filing
-
2009
- 2009-09-17 US US12/561,565 patent/US20100043843A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2008128868A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008128868A1 (en) | 2008-10-30 |
CA2681194A1 (en) | 2008-10-30 |
US20100043843A1 (en) | 2010-02-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20091119 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: STRAUB, KARLHEINZ Inventor name: DROESCHER, MARIA Inventor name: SCHNEIDER, WOLFGANG |
|
17Q | First examination report despatched |
Effective date: 20100608 |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20121113 |