CN103276618A - Papermaking chemical adding device - Google Patents
Papermaking chemical adding device Download PDFInfo
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- CN103276618A CN103276618A CN2013102110139A CN201310211013A CN103276618A CN 103276618 A CN103276618 A CN 103276618A CN 2013102110139 A CN2013102110139 A CN 2013102110139A CN 201310211013 A CN201310211013 A CN 201310211013A CN 103276618 A CN103276618 A CN 103276618A
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Abstract
The invention discloses a papermaking chemical adding device which comprises a lip region, a pulp feeding header pipe, a pulp distribution element communicated with the pulp feeding header pipe, and a chemical adding system communicated with the pulp distribution element. The chemical adding system comprises a first chemical header pipe, a first chemical branch pipe, a second chemical header pipe and a second chemical branch pipe. A first regulating valve is mounted on each branch of the first chemical branch pipe. A second regulating valve is mounted on each branch of the second chemical branch pipe. The pulp distribution element is composed of an upper-layer pipe bundle and a lower-layer pipe bundle, wherein the pipe bundles are arranged in multiple layers. Through the mode for a layout or connection, neither the first chemical branch pipe nor the second chemical branch pipe makes direct contact with pulp, and no adverse impact will be exerted on pulp flow in a flowing pulp box. The first chemical branch pipe and the second chemical branch pipe are transversely arranged along the flowing pulp box and mounted on the upper portion of the pulp distribution element. The papermaking chemical adding device has enough distribution space so that the positioning and distribution of chemicals cannot be affected by different arrangement positions.
Description
Technical field
The present invention relates to the pulp and paper technology field, relate in particular to a kind of adding set of papermaking chemical product.
Background technology
In the paper forming process, usually need to add various chemical assistants and filler, to improve the quality index of paper, improve the resource interest rate, improve the paper machine operation.As add physical property (as opacity, whiteness, smoothness etc.), mechanical performance (flexibility) and the printing quality that filler improves paper, reinforcing agent improves the dry wet strength of paper, retention agent improves the retention of fiber fines and filler, filter aid improves water filtering performance of slurry etc., therefore in the modern paper process, chemicals be added to an essential link.
Current chemicals adding method is in pulp feeding system, to add before head box, thereby chemicals is fully mixed with slurry, yet this method is undesirable, because pulp feeding system comprises the equipment such as pump and selectifier, can apply stronger hydrodynamic shear for chemicals, and many chemical assistants are high molecular polymers, when being subject to hydrodynamic shear, this high molecular polymer can rupture, when the polymer of these long-chains is subject to the continuous shearing force strengthened of fluid in pulp feeding system like this, can cause the long-chain fracture, original performance and additive effect have been lost, other additive can not be uniformly distributed in thickness direction or the Z-direction of paper as filler, and be concentrated in the surface of paper, this cannot solve for single-layer headboxes and single lip, for the multilayer head box, that pursues is again every layer and has different kinds of fibers and chemical kind, rather than the uniform paper stock of whole page distributes.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of prior art, a kind of adding set of simple in structure, rationally distributed papermaking chemical product is provided.This device can not affect flowing of slurry, and first the chemicals arm and the second chemicals arm transversely arranged along head box, and be arranged on the upstream that cloth is starched element, and thering is enough distribution spaces, the location that also can not affect because of the difference of arrangement position chemicals distributes.
The present invention is achieved through the following technical solutions:
A kind of adding set of papermaking chemical product, comprise the lip district, advance to starch house steward, with advance to starch cloth slurry element that house steward is communicated with, with cloth, starch the chemicals add-on system that element is communicated with, described chemicals add-on system comprises the first chemicals house steward, the first chemicals arm, the second chemicals house steward, the second chemicals arm; On every branch road of the first chemicals arm, the first control valve is installed, on every branch road of the second chemicals arm, the second control valve is installed; Described cloth slurry element is that upper strata tube bank and lower floor's tube bank of by multilayer, being arranged from top to bottom form;
One end of described the first chemicals arm connects the first chemicals house steward, and the other end connects lower floor's tube bank of cloth slurry element; One end of described the second chemicals arm connects the second chemicals house steward, and the other end connects the upper strata tube bank of cloth slurry element.The tube bank of described upper strata is divided into three layers, and every one deck consists of a comb bundle, and lower floor's tube bank has one deck, a comb bundle, consists of.
Described the first chemicals arm and the second chemicals arm are transversely arranged along head box, and are arranged on the upstream of cloth slurry element.
It is circular import that described cloth slurry element connects into slurry house steward's a end, and an end that connects the lip district is square outlet; Described lip district is equipped with the waft sheet of polylith for shunting, and the piece number of the sheet that wafts is less than total number of plies of upper strata tube bank with lower floor's tube bank of cloth slurry element.
The first chemicals house steward and the second chemicals house steward side's of being taper or taper shape; Each arm of the first chemicals arm and the second chemicals arm is circular arm.
Compared with prior art, the adding set of this papermaking chemical product at least possesses following advantage and effect:
One end of the first chemicals arm connects the first chemicals house steward, and the other end connects lower floor's tube bank of cloth slurry element; One end of the second chemicals arm connects the second chemicals house steward, and the other end connects the upper strata tube bank of cloth slurry element.Adopt this mode layout or connection, the first chemicals arm does not directly contact with slurry with the second chemicals arm, can not give birth to any adverse effect for the slurry miscarriage of head box.
The first chemicals arm and the second chemicals arm are transversely arranged along head box, and are arranged on the upstream of cloth slurry element.Adopt this topology layout, have enough distribution spaces, the location that also can not affect because of the difference of arrangement position chemicals distributes.
The lip district is equipped with the sheet that wafts for shunting, makes cloth slurry every layer of tube bank of element slurry out in lip district individual flow, can mutually not mix, thereby guarantee the uniqueness of chemicals in each layer of slurry of Z-direction.
The accompanying drawing explanation
Fig. 1 is the structural representation of the adding set of this papermaking chemical product.
Fig. 2 is the circular import schematic cross-section of cloth slurry element in Fig. 1.
Fig. 3 is the square outlet schematic diagram of cloth slurry element in Fig. 1.
Fig. 4 is A-A generalized section in Fig. 1.
Fig. 5 is B-B generalized section in Fig. 1.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figure 1, Figure 4, Figure 5.The adding set of papermaking chemical product of the present invention, comprise lip district 9, breast roll 11, forming web 12, advance to starch house steward 7, with advance to starch cloth slurry element 8 that house steward 7 is communicated with, with cloth, starch the chemicals add-on system that element 8 is communicated with, described chemicals add-on system comprises the first chemicals house steward 1, the first chemicals arm 3, the second chemicals house steward 6, the second chemicals arm 4; The first control valve 2 is installed on every branch road of the first chemicals arm 3, the second control valve 5 is installed on every branch road of the second chemicals arm 4; Described cloth slurry element 8 is that upper strata tube bank and lower floor's tube bank of by multilayer, being arranged from top to bottom form.Cloth slurry element 8, except being Pipe bundle structure, can be also orifice plate, stepped diffuser.
One end of described the first chemicals arm 3 connects the first chemicals house steward 1, and the other end connects lower floor's tube bank of cloth slurry element 8; One end of described the second chemicals arm 4 connects the second chemicals house steward 6, and the other end connects lower floor's tube bank of cloth slurry element 8.Described the first chemicals arm 3 and the second chemicals arm 4 are transversely arranged along head box, and are arranged on the upstream of cloth slurry element 8.
The tube bank of described upper strata is divided into three layers, and every one deck consists of a comb bundle, and lower floor's tube bank has one deck, a comb bundle, consists of.
As shown in Figure 2 and Figure 3.It is circular import that cloth slurry element 8 connects into an end of slurry house steward 7, and an end that connects the lip district is square outlet.In the process of circle change side, thereby can produce the abundant mixing that microturbulence promotes chemicals and slurry stream.Advancing to starch house steward 7 also can the side's of being taper or taper shape.
Described lip district 9 is equipped with the waft sheet 10 of polylith for shunting.The sheet 10 that wafts can be fixed on by the mode of hinge between the square outlet of cloth slurry element 8.In actual applications, the number of plies that the piece number of sheet 10 of wafing can be less than cloth slurry element 8 (, upper strata tube bank and lower floor's tube bank with), this example has been restrained three layers at the middle and upper levels, lower floor's tube bank has one deck, therefore three sheets 10 that waft has been installed, and makes every one deck slurry out in upper and lower floor tube bank separate individual flow in lip district 9 by the sheet 10 that wafts, can mutually not mix, thereby guarantee the uniqueness of chemicals in each layer of slurry of Z-direction.
Described the first chemicals house steward 1 and the second chemicals house steward 6 sides of being taper or taper shape; Each arm of the first chemicals arm 3 and the second chemicals arm 4 is circular arm.
The first control valve 2 and the second control valve 5 can be hand-operated valves, can regulate according to need the addition of chemicals.In practical application, if adopt measuring pump to control the chemicals flow that enters the chemicals house steward, can be without the first control valve 2 and the second control valve 5 are set.
The first chemicals house steward 1, the first chemicals arm 3 and the first control valve 2, can be referred to as first set cover add-on system; Chemicals in this cover system is retention agent, and therefore 3 lower floor's tube banks with cloth slurry element 8 of the first chemicals arm are connected, and make retention agent add the bottom of slurry stream to.Can reduce the consumption of chemicals so on the one hand, reduce the content of chemicals in waste water, can reduce on the other hand the order number of net, increase dehydration.
The second chemicals house steward 6, the second chemicals arm 4 and the second control valve 5, can be referred to as the second cover cover add-on system; Chemicals in this cover system is reinforcing agent, and therefore the second chemicals arm 4 is connected with the upper strata tube bank of cloth slurry element 8, makes dose add slurry stream at the middle and upper levels, improves paper strength, reduces and runs off.
Chemicals joins the upstream of cloth slurry element 8 by the first chemicals arm 3, the second chemicals arm 4, with the slurry stream that advances to starch house steward 7, in cloth slurry element 8, fully mix.Chemicals is entered in specific cloth slurry element 8, thereby control addition and the kind of slurry stream at each position chemicals of Z-direction.
Just can realize preferably the present invention as mentioned above.
Embodiments of the present invention are not restricted to the described embodiments; other are any does not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitute, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (5)
1. the adding set of a papermaking chemical product, comprise the lip district, advance to starch house steward, with advance to starch cloth slurry element that house steward is communicated with, with cloth, starch the chemicals add-on system that element is communicated with, it is characterized in that: described chemicals add-on system comprises the first chemicals house steward, the first chemicals arm, the second chemicals house steward, the second chemicals arm; On every branch road of the first chemicals arm, the first control valve is installed, on every branch road of the second chemicals arm, the second control valve is installed
;described cloth slurry element is that upper strata tube bank and lower floor's tube bank of by multilayer, being arranged from top to bottom form;
One end of described the first chemicals arm connects the first chemicals house steward, and the other end connects lower floor's tube bank of cloth slurry element;
One end of described the second chemicals arm connects the second chemicals house steward, and the other end connects the upper strata tube bank of cloth slurry element.
2. the adding set of papermaking chemical product according to claim 1, it is characterized in that: described the first chemicals arm and the second chemicals arm are transversely arranged along head box, and are arranged on the upstream of cloth slurry element.
3. the interpolation of papermaking chemical product according to claim 1 and 2 fills
put, it is characterized in that: it is circular import that described cloth slurry element connects into slurry house steward's a end
,an end that connects the lip district is square outlet
;described lip district is equipped with the waft sheet of polylith for shunting, and the piece number of the sheet that wafts is less than total number of plies of upper strata tube bank with lower floor's tube bank of cloth slurry element.
4. the adding set of papermaking chemical product according to claim 3, is characterized in that: described the first chemicals house steward and the second chemicals house steward side's of being taper or taper shape
;each arm of the first chemicals arm and the second chemicals arm is circular arm.
5. the adding set of papermaking chemical product according to claim 3 is characterized in that: the tube bank of described upper strata is divided into three layers, and every one deck consists of a comb bundle, and lower floor's tube bank has one deck, a comb bundle, consists of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102110139A CN103276618A (en) | 2013-05-30 | 2013-05-30 | Papermaking chemical adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102110139A CN103276618A (en) | 2013-05-30 | 2013-05-30 | Papermaking chemical adding device |
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| CN103276618A true CN103276618A (en) | 2013-09-04 |
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| CN2013102110139A Pending CN103276618A (en) | 2013-05-30 | 2013-05-30 | Papermaking chemical adding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628343B (en) * | 2013-11-01 | 2017-01-11 | 维达纸业（中国）有限公司 | Low-basis-weight compact fine soft tissue and production method thereof |
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| EP0745722A2 (en) * | 1995-06-01 | 1996-12-04 | Valmet Corporation | Headbox of a paper/board machine |
| EP0824157A2 (en) * | 1996-08-14 | 1998-02-18 | Voith Sulzer Papiermaschinen GmbH | Headbox and process for the distribution of a fibrous suspension in the headbox of a paper making machine |
| CN1234083A (en) * | 1996-10-18 | 1999-11-03 | 韦尔梅特公司 | Stock feed system for a multi-layer headbox, and method in operation of multi-layer headbox |
| EP0985762A1 (en) * | 1998-09-03 | 2000-03-15 | Voith Sulzer Papiertechnik Patent GmbH | Headbox for distributing pulp suspension and additives |
| US20010037867A1 (en) * | 1996-11-26 | 2001-11-08 | Jyrki Huovila | Multi-layer headbox for a paper/board machine |
| CN101392471A (en) * | 2008-10-23 | 2009-03-25 | 华南理工大学 | Dilution water ring addition device of head box |
| CN101622399A (en) * | 2007-03-01 | 2010-01-06 | 梅特索·佩珀·卡尔斯塔德公司 | Structural element for a functional member of a headbox in a web-manufacturing machine, functional member and headbox made thereof, and associated methods |
| DE102009055229A1 (en) * | 2009-12-23 | 2011-06-30 | Voith Patent GmbH, 89522 | Head box for use in sheet forming system of machine for manufacturing material web e.g. paper web, has supply device for supplying fiber suspension, and dosing unit provided for dosing medium into individual channels in plastic modules |
| DE102011077913A1 (en) * | 2010-06-28 | 2011-12-29 | Metso Paper, Inc. | Multi-layer headbox e.g. compact hydraulic headbox, has suspension beam comprising material layer that is made of substance and provided on forming fabric, and another material layer made of diluted substance and lying on diluted substance |
| CN203284677U (en) * | 2013-05-30 | 2013-11-13 | 华南理工大学 | Papermaking chemical adding apparatus |
-
2013
- 2013-05-30 CN CN2013102110139A patent/CN103276618A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0745722A2 (en) * | 1995-06-01 | 1996-12-04 | Valmet Corporation | Headbox of a paper/board machine |
| EP0824157A2 (en) * | 1996-08-14 | 1998-02-18 | Voith Sulzer Papiermaschinen GmbH | Headbox and process for the distribution of a fibrous suspension in the headbox of a paper making machine |
| CN1234083A (en) * | 1996-10-18 | 1999-11-03 | 韦尔梅特公司 | Stock feed system for a multi-layer headbox, and method in operation of multi-layer headbox |
| US20010037867A1 (en) * | 1996-11-26 | 2001-11-08 | Jyrki Huovila | Multi-layer headbox for a paper/board machine |
| EP0985762A1 (en) * | 1998-09-03 | 2000-03-15 | Voith Sulzer Papiertechnik Patent GmbH | Headbox for distributing pulp suspension and additives |
| CN101622399A (en) * | 2007-03-01 | 2010-01-06 | 梅特索·佩珀·卡尔斯塔德公司 | Structural element for a functional member of a headbox in a web-manufacturing machine, functional member and headbox made thereof, and associated methods |
| CN101392471A (en) * | 2008-10-23 | 2009-03-25 | 华南理工大学 | Dilution water ring addition device of head box |
| DE102009055229A1 (en) * | 2009-12-23 | 2011-06-30 | Voith Patent GmbH, 89522 | Head box for use in sheet forming system of machine for manufacturing material web e.g. paper web, has supply device for supplying fiber suspension, and dosing unit provided for dosing medium into individual channels in plastic modules |
| DE102011077913A1 (en) * | 2010-06-28 | 2011-12-29 | Metso Paper, Inc. | Multi-layer headbox e.g. compact hydraulic headbox, has suspension beam comprising material layer that is made of substance and provided on forming fabric, and another material layer made of diluted substance and lying on diluted substance |
| CN203284677U (en) * | 2013-05-30 | 2013-11-13 | 华南理工大学 | Papermaking chemical adding apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628343B (en) * | 2013-11-01 | 2017-01-11 | 维达纸业（中国）有限公司 | Low-basis-weight compact fine soft tissue and production method thereof |
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Application publication date: 20130904 |