CN105862486A - Efficient defoaming device for off-machine water chute - Google Patents
Efficient defoaming device for off-machine water chute Download PDFInfo
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- CN105862486A CN105862486A CN201510035779.5A CN201510035779A CN105862486A CN 105862486 A CN105862486 A CN 105862486A CN 201510035779 A CN201510035779 A CN 201510035779A CN 105862486 A CN105862486 A CN 105862486A
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- plain boiled
- water chute
- boiled water
- chute
- machine
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Abstract
The invention relates to an efficient defoaming device for an off-machine water chute. The efficient defoaming device comprises a web part of a paper machine, the off-machine water chute and an under-machine off-machine water tank, wherein the web part of the paper machine communicates with a water inlet end of the off-machine water chute, the under-machine off-machine water tank communicates with a water outlet end of the off-machine water chute through a water delivery pipe, and the upper end of the off-machine water chute is provided with a defoamer adding pipeline and a defoaming spray pipeline; and spray nozzles which are vertical to a water surface of the off-machine water chute are formed in the defoaming spray pipeline and are distributed along the length direction and/or width direction of the off-machine water chute. Compared with the prior art, the efficient defoaming device has the advantages that the defoamer adding pipeline and the defoaming spray pipeline are arranged simultaneously, so that bubbles on the surface of off-machine water in the off-machine water chute can be eliminated on the basis of not increasing a defoamer, and the cost of chemicals is reduced; the device is extremely high in adaptability, can be used for carrying out continuous spraying and can also be used for carrying out discontinuous spraying, and one to three devices can be started up in a simultaneous online manner if the bubbles of the off-machine water are too much so as to achieve the highest defoaming effect; and if the bubbles are less, the defoamer can be used to completely remove the bubbles, and the defoamer is not be added or a few of defoamer is added.
Description
Technical field
The present invention relates to the plain boiled water defoaming device of a kind of paper machine system wet end abjection, especially relate to a kind of efficient
Plain boiled water chute defoaming device.
Background technology
In paper for daily use paper manufacturing streams, what short cyclic design commonly used is plain boiled water chute device, and Main Function is
Collecting in plain boiled water chute by the Free water that wet end removes, the plain boiled water in chute is directly used as starching dilution plain boiled water, as
Low water consumption can drop in this circulation.But because paper for daily use paper machine speed is higher, the type speed using crescent molding device can
Reaching 2200 ms/min, under high speed, the plain boiled water circulation rate in plain boiled water chute is quickly, the impact of plain boiled water cyclic process
A large amount of bubble will necessarily be produced.Simultaneously as using and the fluctuation of pH of chemical drugs particularly wet strength agent, also can
Increase the generation amount of bubble.The existence of these bubbles in plain boiled water chute, can affect the molding of page, also can be to paper
Quantitative fluctuation produces impact, and the stability of system is brought fluctuation.
Existing plain boiled water chute debubbling method is most common adds defoamer exactly, and defoamer typically has degasification and froth breaking
Effect, can largely eliminate that plain boiled water in plain boiled water chute is internal and the bubble on surface, if but plain boiled water blibbing
Too much, add defoamer in large quantities and the character of plain boiled water can be brought change, because defoamer has oil components, in life
In paper using production process, a large amount of use defoamer can make slurry be easily peeled off on Flying Dutchman, causes page to send out
Waft or the phenomenon such as monochromatic light, increase the difficulty of regulation drying cylinder coating, decrease the stability of coating.
Chinese patent CN 203569379 U discloses a kind of efficient white wate tray blowdown apparatus, including web part of paper machine,
Back flow water pump, weight slag blow-off pipe, weight stock pump, described web part of paper machine connection back flow water pump, described heavy slag blow-off pipe,
Weight stock pump is separately positioned on bottom back flow water pump, also includes blowoff basin under adjustable baffle plate, light slag blow-off pipe and machine, institute
The adjustable baffle plate stated is arranged in back flow water pump, and back flow water pump is divided into blowdown district and overflow area, described heavy slag blowdown
Pipe, weight stock pump are positioned at bottom blowdown district, and under described machine, blowoff basin is connected to overflow area by pipeline, and at this pipe
Light slag blow-off pipe is set on road.Said apparatus is mainly used in improving the contaminant removal effectiveness of back flow water pump, but for back flow water pump
Interior bubble treatment effect is poor.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of simple in construction,
Reduce and add spraying stability, efficient plain boiled water chute defoaming device outside defoamer consumption, raising drying cylinder.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of efficient plain boiled water chute defoaming device, including white water chest under web part of paper machine, plain boiled water chute and machine, described
Web part of paper machine be connected with plain boiled water chute water inlet end, under described machine, white water chest is gone out with plain boiled water chute by water-supply-pipe
Water end (W.E.) is connected, and described plain boiled water chute upper end is provided with defoamer and adds pipeline and froth breaking spray pipeline.
The nozzle of the plain boiled water chute water surface it is provided perpendicular on described froth breaking spray pipeline.
Described nozzle is fan nozzle, and described nozzle is along the length direction of plain boiled water chute and/or width cloth
If.
Water (flow) direction along plain boiled water chute, described nozzle is arranged on defoamer and adds the downstream of pipeline.
Being provided with controllable register in described plain boiled water chute, plain boiled water chute is divided into blowdown district and overflows by described controllable register
Stream district, described defoamer adds pipeline and is arranged at above blowdown district with froth breaking spray pipeline, described water-supply-pipe
Connection is in overflow area.
Connect bottom described blowdown district and have heavy slag blow-off pipe and fan pump.
Connect on described water-supply-pipe and have light slag blow-off pipe.
Described light slag blow-off pipe is provided with regulation valve.
Froth breaking spray pipeline is made up of rustless steel pipeline and fan nozzle, mainly uses the mode of spray, allows moisture
It is sprayed onto above the bubble on plain boiled water surface scatteredly, makes bubble eliminate.It is arranged above with froth breaking spray pipeline at plain boiled water chute,
Make it vertical with the direction of white water flow, water is sprayed onto continuously plain boiled water surface, bubble is eliminated.Its installation position
After being set to the interpolation of plain boiled water chute defoamer, before dilution sizing material, it is possible to continuous series installs 2-3 device,
Removing more foam, depending on nozzle installation quantity is according to plain boiled water chute size, concrete installation site can be on-the-spot real
Border is reconnoitred.The mode of spray can spray continuously can also be interrupted spray.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) it is provided with defoamer simultaneously and adds pipeline and froth breaking spray pipeline, and after defoamer adds pipeline
Side arranges froth breaking spray pipeline, can eliminate the gas on plain boiled water surface in plain boiled water chute on the basis of not increasing defoamer
Bubble, saves the cost of chemical drugs；
(2), because using system plain boiled water, while saving chemicals cost, improve and add spraying outside drying cylinder
Stability；
(3) adaptability of this device and strong, can spray, it is possible to spray discontinuously, continuously if plain boiled water bubble is too much
Time, can open the most online by 1-3 root device, reach the strongest defoaming effect；If foam is less, defoamer can be complete
Complete remove, then can without or add on a small quantity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Label in figure: 1 is web part of paper machine, 2 add pipeline for defoamer, and 3 is plain boiled water chute, and 4 is nozzle, and 5
For light slag blow-off pipe, 6 attach most importance to slag blow-off pipe, and 7 is fan pump, and 8 is white water chest under machine, and 9 is water-supply-pipe, and 10
For controllable register.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of efficient plain boiled water chute defoaming device, as it is shown in figure 1, include web part of paper machine 1, plain boiled water chute 3 and
White water chest 8 under machine, web part of paper machine 1 is connected with plain boiled water chute 3 water inlet end, and under machine, white water chest 8 passes through water-supply-pipe
9 are connected with plain boiled water chute 3 water side, and plain boiled water chute 3 upper end is provided with defoamer and adds pipeline 2 and froth breaking spray
Shower pipe road.The nozzle 4 of plain boiled water chute 3 water surface it is provided perpendicular on froth breaking spray pipeline.Nozzle 4 is fan-shaped spray
Mouth, nozzle 4 is laid along length direction and/or the width of plain boiled water chute 3.Current side along plain boiled water chute 3
To, nozzle 4 is arranged on defoamer and adds the downstream of pipeline 2.
Being provided with controllable register 10 in plain boiled water chute 3, plain boiled water chute 3 is divided into blowdown district and overflow by controllable register 10
District, defoamer adds pipeline 2 and is arranged at above blowdown district with froth breaking spray pipeline, and water-supply-pipe 9 connects in overflow
In district.Connect bottom blowdown district and have weight slag blow-off pipe 6 and fan pump 7.Connect on water-supply-pipe 9 and have light slag blow-off pipe
5.Light slag blow-off pipe 5 is provided with regulation valve.
In the present embodiment, froth breaking spray pipeline is made up of rustless steel pipeline and fan nozzle, mainly uses spray
Mode, allows and is sprayed onto above the bubble on plain boiled water surface water-dispersiblely, makes bubble eliminate.It is arranged above with disappearing at plain boiled water chute
Bubble spray pipeline so that it is vertical with the direction of white water flow, is sprayed onto water plain boiled water surface continuously, is disappeared by bubble
Remove.Its installation site is after plain boiled water chute defoamer adds, before dilution sizing material, it is possible to continuous series is pacified
Fill 2-3 device, remove more foam, depending on nozzle installation quantity is according to plain boiled water chute size, specifically pacify
Holding position can on-the-spot actual prospecting.
In the present embodiment, froth breaking spray pipeline is provided with 1-3 in plain boiled water chute, and the mode of spray can be sprayed continuously
Pouring can also be interrupted spray.The water quality of water spray is plain boiled water, and pressure is 1.5bar, and total water consumption is 30-90l/min.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use to send out
Bright.These embodiments obviously easily can be made various amendment by person skilled in the art, and at this
The General Principle illustrated is applied in other embodiments without through performing creative labour.Therefore, the present invention does not limits
In above-described embodiment, those skilled in the art are according to the announcement of the present invention, without departing from changing that scope is made
Entering and revise all should be within protection scope of the present invention.
Claims (8)
1. an efficient plain boiled water chute defoaming device, including under web part of paper machine (1), plain boiled water chute (3) and machine
White water chest (8), described web part of paper machine (1) is connected with plain boiled water chute (3) water inlet end, white under described machine
Pond (8) is connected with plain boiled water chute (3) water side by water-supply-pipe (9), it is characterised in that described
Plain boiled water chute (3) upper end is provided with defoamer and adds pipeline (2) and froth breaking spray pipeline.
One the most according to claim 1 efficient plain boiled water chute defoaming device, it is characterised in that described
Froth breaking spray pipeline on be provided perpendicular to the nozzle (4) of plain boiled water chute (3) water surface.
One the most according to claim 2 efficient plain boiled water chute defoaming device, it is characterised in that described
Nozzle (4) be fan nozzle, described nozzle (4) is along the length direction of plain boiled water chute (3) and/or width
Direction is laid.
One the most according to claim 2 efficient plain boiled water chute defoaming device, it is characterised in that along white
Eaves gutter groove (3) interior water (flow) direction, described nozzle (4) is arranged on defoamer and adds the downstream of pipeline (2).
One the most according to claim 1 efficient plain boiled water chute defoaming device, it is characterised in that described
Plain boiled water chute (3) in be provided with controllable register (10), described controllable register (10) is by plain boiled water chute (3)
Being divided into blowdown district and overflow area, described defoamer adds pipeline (2) and is arranged at blowdown with froth breaking spray pipeline
Above district, described water-supply-pipe (9) connects in overflow area.
One the most according to claim 5 efficient plain boiled water chute defoaming device, it is characterised in that described
Blowdown district bottom connect and have heavy slag blow-off pipe (6) and fan pump (7).
One the most according to claim 1 efficient plain boiled water chute defoaming device, it is characterised in that described
The upper connection of water-supply-pipe (9) have light slag blow-off pipe (5).
One the most according to claim 7 efficient plain boiled water chute defoaming device, it is characterised in that described
Light slag blow-off pipe (5) be provided with regulation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510035779.5A CN105862486B (en) | 2015-01-23 | 2015-01-23 | A kind of efficient plain boiled water chute defoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510035779.5A CN105862486B (en) | 2015-01-23 | 2015-01-23 | A kind of efficient plain boiled water chute defoaming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105862486A true CN105862486A (en) | 2016-08-17 |
| CN105862486B CN105862486B (en) | 2019-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510035779.5A Active CN105862486B (en) | 2015-01-23 | 2015-01-23 | A kind of efficient plain boiled water chute defoaming device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979828A (en) * | 2020-09-01 | 2020-11-24 | 南京鼎兆新材料技术研发有限公司 | Online continuous defoaming treatment method for white water of papermaking system |
| CN113943027A (en) * | 2021-10-29 | 2022-01-18 | 山鹰国际控股股份公司 | Spraying defoaming device for white water tank and defoaming method thereof |
Citations (7)
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|---|---|---|---|---|
| CA2046195A1 (en) * | 1990-11-08 | 1992-05-09 | Wayne J. Chamblee | Foam removal from receiving tanks of gas sparged hydrocyclones |
| EP0798416A1 (en) * | 1996-03-26 | 1997-10-01 | Voith Sulzer Stoffaufbereitung GmbH | Flotation process and device for separating solid particles of a paper fibre suspension |
| US6416632B1 (en) * | 1998-01-30 | 2002-07-09 | Metso Paper, Inc. | Apparatus for degassing an aqueous suspension containing pulp fibers |
| CA2528772A1 (en) * | 2004-05-05 | 2005-11-10 | Metso Paper, Inc. | Method and apparatus for removing gas from particulated material |
| CN201198001Y (en) * | 2008-05-16 | 2009-02-25 | 鞍钢股份有限公司 | Apparatus for automatically adding foam killer |
| CN202090235U (en) * | 2011-05-20 | 2011-12-28 | 湖南正大轻科机械有限公司 | Screen water-vapor separation fiber recovery device |
| CN203569379U (en) * | 2013-10-18 | 2014-04-30 | 上海东冠纸业有限公司 | High-efficiency white water tray blowdown device |
-
2015
- 2015-01-23 CN CN201510035779.5A patent/CN105862486B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2046195A1 (en) * | 1990-11-08 | 1992-05-09 | Wayne J. Chamblee | Foam removal from receiving tanks of gas sparged hydrocyclones |
| EP0798416A1 (en) * | 1996-03-26 | 1997-10-01 | Voith Sulzer Stoffaufbereitung GmbH | Flotation process and device for separating solid particles of a paper fibre suspension |
| US6416632B1 (en) * | 1998-01-30 | 2002-07-09 | Metso Paper, Inc. | Apparatus for degassing an aqueous suspension containing pulp fibers |
| CA2528772A1 (en) * | 2004-05-05 | 2005-11-10 | Metso Paper, Inc. | Method and apparatus for removing gas from particulated material |
| CN201198001Y (en) * | 2008-05-16 | 2009-02-25 | 鞍钢股份有限公司 | Apparatus for automatically adding foam killer |
| CN202090235U (en) * | 2011-05-20 | 2011-12-28 | 湖南正大轻科机械有限公司 | Screen water-vapor separation fiber recovery device |
| CN203569379U (en) * | 2013-10-18 | 2014-04-30 | 上海东冠纸业有限公司 | High-efficiency white water tray blowdown device |
Non-Patent Citations (2)
| Title |
|---|
| 刘机勇: ""造纸过程中气泡的形成、影响及处理"", <<中国造纸>> * |
| 天津大学: "《制浆造纸工艺学》", 31 December 1965, 中国财政经济出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979828A (en) * | 2020-09-01 | 2020-11-24 | 南京鼎兆新材料技术研发有限公司 | Online continuous defoaming treatment method for white water of papermaking system |
| CN111979828B (en) * | 2020-09-01 | 2022-04-22 | 南京鼎兆新材料技术研发有限公司 | Online continuous defoaming treatment method for white water of papermaking system |
| CN113943027A (en) * | 2021-10-29 | 2022-01-18 | 山鹰国际控股股份公司 | Spraying defoaming device for white water tank and defoaming method thereof |
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| Publication number | Publication date |
|---|---|
| CN105862486B (en) | 2019-01-11 |
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