CN104704166B - Liquid distributor and washing facility for washing facility - Google Patents
Liquid distributor and washing facility for washing facility Download PDFInfo
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- CN104704166B CN104704166B CN201380047025.0A CN201380047025A CN104704166B CN 104704166 B CN104704166 B CN 104704166B CN 201380047025 A CN201380047025 A CN 201380047025A CN 104704166 B CN104704166 B CN 104704166B
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- 239000007788 liquid Substances 0.000 title claims abstract description 87
- 238000005406 washing Methods 0.000 title claims abstract description 25
- 229920002678 cellulose Polymers 0.000 claims abstract description 8
- 239000001913 cellulose Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 46
- 238000004140 cleaning Methods 0.000 claims description 45
- 239000004744 fabric Substances 0.000 claims 3
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 20
- 239000000706 filtrate Substances 0.000 description 13
- 238000009826 distribution Methods 0.000 description 10
- 239000012530 fluid Substances 0.000 description 10
- 230000008901 benefit Effects 0.000 description 6
- 206010061876 Obstruction Diseases 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 206010033546 Pallor Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/40—Washing the fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0245—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The present invention relates to the liquid distributor (10) in a kind of equipment (100) for washing cellulose pulp, wherein paper pulp transmits in bucket (5), this liquid distributor (10) includes entrance (12), first flowing changed course wall (14), it is arranged to the outlet (13) being exported by liquid in bucket chamber (8), and there is the passage (11) of first passage part (11a) and second channel part (11b), first passage part (11a) is placed between entrance (12) and the first flowing changed course wall (14), second channel part (11b) is placed between the first flowing changed course wall (14) and outlet (13).Second channel cross-sectional area (A21+A22) is throughout more than first passage cross-sectional area (A1).Liquid distributor (10) also includes the second flowing changed course wall (15), and the third channel part (11c) in passage (11) is placed between the second flowing changed course wall (14) and outlet (13).Third channel cross-sectional area (A3, A3 ') throughout more than second channel cross-sectional area (A21+A22).
Description
Technical field
The present invention relates to for the liquid distributor for washing facility as described in the preamble as claimed in claim 1 and the washing facility as described in the preamble such as claim 14.
Background technology
Pulp washing is a key operation in pulping production line.Having the different types of washing facility of many kinds available, some in these wash engines are washed based on press type and include the squeezing paper pulp device to be removed by liquid.After squeezing, paper pulp (if appropriate) can be diluted to desired concn.
Known washing machine is double; two roll-in crushers of such as universal class disclosed in US3,980,518.It has two reversely rotated rollers with perforated outer surface.Pulp web is formed and is transported to the so-called press nip between roller in respective rollers and in rotational direction in partially around the bucket of roller.The liquid removed from paper pulp, i.e. filtrate are in a radially inward direction through perforated roll surface, and are directed to the two ends of pressure roller by means of axial filtrate channels, export filtrate at this place.Cleaning mixture or other treatment fluid can be supplied to paper web by the entrance in bucket.
Such as at US5,046,338 or SE502815 in another known washing facility be cartridge type washing machine, wherein, after adding cleaning mixture, the paper pulp of cellulose deposits on single rotation cartridge filter and carries out dehydration, and this rotation cartridge filter has permeable outer surface, and cleaning mixture displacement remains in the liquid on paper web after the preceding process steps of such as steaming and decocting step or blanching step.Static pressure causes the contaminated liquids (the being called filtrate) outer surface by liquid permeable.Another development form of original cartridge type washing machine is pressurized displacement formula washing machine, wherein, forces filtrate to pass through permeable outer surface under overvoltage.In these examples, the groove output that cleaning mixture is fed to by nozzle and then passes through in baffle plate.
Be perpendicular to paper web guide one of cleaning mixture to have a problem in that it is at a high speed directly through paper web and have with fiber and minimum possible contact route.This provides longitudinal track in web of fiber and detersive efficiency is low, because cleaning mixture mixes with filtrate.
In SE448524, it is shown that liquid distributor, have a perpendicular to the output portion in input portion, and wherein output channel expands towards output portion.Purpose is to slow down cleaning mixture by having conical nozzle.Owing to cross-sectional area continues to increase towards outlet, so cleaning mixture will slow down.One problem is that cone to be grown and just effectively and therefore occupies more space and be not therefore enough effective for this purpose.
Tangent with the cone that flowing is altered course to the entrance of conical nozzle.Cross-sectional area after flowing changed course is identical with before flowing changed course, and therefore flowing changed course not itself causes any reduction of speed.But, it is therefore an objective to cause eddy current.
Summary of the invention
It is an object of the invention to provide a kind of liquid distributor for washing facility and/or the improvement of cellulose pulp dehydration equipment.This purpose realizes according to appended claims.
The present invention is based on such judgement: incoming flow cleaning mixture is not made cleaning mixture slow down by the tangential inlet to nozzle or other liquid distributor of changed course wall changed course of flowing, unless the cross-sectional area in passage is also throughout more than before flowing changed course wall after flowing changed course wall.Otherwise only effect is to produce eddy current, and this can be limited on improving washing impact.
This invention also teaches the energy and the momentum that reduce cleaning mixture by making cleaning mixture slow down by means of the second flowing changed course wall further.After second flowing changed course wall, the cross-sectional area in passage is throughout more than before the second flowing changed course wall.According to particularly advantageous embodiment, liquid distributor is arranged so that a part for flow clashes into the second flowing changed course wall, and another part passes through up.
Advantage is in that to provide cleaning mixture by high pressure, and this makes the distribution obtaining multiple nozzle or other liquid distributor be easier to, and has independent valve without each nozzle.Meanwhile, the cleaning mixture speed when running into paper pulp will not be too high.This make cleaning mixture outside paper pulp on form one layer, rather than at each isolated point directly through paper pulp.This also makes the mixing of filtrate from paper pulp extruding minimum, and this mixing is undesirable.Cleaning mixture not only slows down but also be distributed, and this makes the washing of paper pulp more effective.Because the program is compact, so too many space will not be occupied.
Accompanying drawing explanation
The present invention and further purpose thereof and advantage can be best understood by with reference to the following description and drawings, in the accompanying drawings:
Fig. 1 is the schematic cross sectional views illustrating and having the washing/dehydrating equipment according to fluid present invention allotter.
Fig. 2 is the schematic cross sectional views of the first embodiment according to fluid present invention allotter.
Fig. 3 is the schematic cross sectional views of the second embodiment according to fluid present invention allotter.
Fig. 4 is the schematic cross sectional views of the 3rd embodiment according to fluid present invention allotter.
Fig. 5 a, b are schematic cross sectional views and the side views of the 4th embodiment according to fluid present invention allotter.
Fig. 6 a, b, c are the schematic cross sectional views of the 5th embodiment of the liquid distributor according to modification of the present invention.
Fig. 7 is the schematic cross sectional views of the sixth embodiment according to fluid present invention allotter.
Fig. 8 is the schematic cross sectional views of the 7th embodiment according to fluid present invention allotter.
Detailed description of the invention
In the accompanying drawings, similar or corresponding element is indicated by identical accompanying drawing labelling.
In the disclosure, passage refers to the space that cleaning mixture flows in liquid distributor when the equipment washing cellulose pulp runs.
Fig. 1 illustrates the example apparatus 100 for washing cellulose pulp.The double-roll type squeezer 100 of the cylindrical press roll/cylinder 2 including two associateds is shown.Pressure roller 2 be arranged to operating during R, R in opposite direction ' rotate, and each there is the permeable outer surface 4 of such as expanded metal.Pressure roller 2 are partly fenced by bucket 5, and bucket 5 includes barrel wall 5 and bucket chamber 8, and this bucket 5 is arranged in from permeable outer surface 4 one distance, thus circumferentially partly fenced pressure roller 2.
During operating, paper pulp enters the paper pulp distributor 1 of corresponding pressure roller 2.The input concentration of paper pulp is generally in the scope of 2-13%.Permeable roller surface 4 is formed pulp web.Pulp web is by bucket 5 in rotational direction R, R ' carry, guide, to squeeze in press nip 3, the distance between press nip 3 place pressure roller 2 is minimum.Pressure roller 2 include axial filtrate channels 6, and this axial filtrate channels 6 receives filtrate from pulp web.Filtrate is carried through permeable roller surface 4 end towards pressure roller 2, and exports at this place.Cleaning mixture is supplied to the pulp web in barrel chamber 8 by liquid distributor 10.Paper pulp exports by means of discharge screw rod 7.
In fig. 2 it is shown that the liquid distributor 10 for supplying cleaning mixture according to a first embodiment of the present invention.Liquid distributor 10 includes entrance 12, outlet 13, makes the first flowing changed course wall 14 of liquid redirection, the second flowing changed course wall 15 after the first flowing changed course wall 14 and have the passage 11 of first passage part 11a, second channel part 11b and third channel part 11c.In this example, second channel part 11b is also penultimate channel part 11b, and third channel part 11c is also last channel part 11c.
First passage part 11a has first passage cross-sectional area A1 and is placed between entrance 12 and the first flowing changed course wall 14.Second channel part 11b has second channel cross-sectional area A21+A22, and it is more than first passage cross-sectional area A1, and is placed between the first flowing changed course wall 14 and outlet 13.More specifically, second channel part 11b is placed between the first flowing changed course wall 14 and the second flowing changed course wall 15.Third channel part 11c has third channel cross-sectional area A3, A3 ', it is more than second channel cross-sectional area A21+A22, and is placed between the second flowing changed course wall 15 and outlet 13.
In this embodiment, second is divided into two parallel subchannels second from the bottom with channel part 11b second from the bottom after the first flowing changed course wall 14, and these subchannels second from the bottom have second channel cross-sectional area A21 and A22.Therefore, channel part 11 second from the bottom has total second channel cross-sectional area A21+A22.
Certainly, other area being different from second channel cross-sectional area similar fashion can also be divided into multiple area.In each case, total flow area is calculated.But, in channel part 11b second from the bottom, there is subchannel and there is specific advantages, because this improves liquid distribution on pulp web.Being likely to sometimes suitably have in channel part 11b second from the bottom more than two subchannel second from the bottom, for instance four subchannels, because when installing nozzle 20, subchannel is more many, the how impact of each subchannel direction is more little.But, certainly can also have second channel part 11b in this embodiment, this second channel part 11b is not divided into subchannel.
Second channel cross-sectional area A21+A22 in second channel part 11b both is greater than the first passage cross-sectional area A1 in first passage part 11a throughout.In fig. 2, second channel cross-sectional area is constant from the first flowing changed course wall 14 to the outlet of nozzle 20.According to alternate embodiment (not shown), second channel cross-sectional area continues to increase.Second channel cross-sectional area can also be portion constant and part increases.But second channel cross-sectional area does not preferably reduce, because this can gather way again.
Entrance 12 receives has the first pressure P 1, liquid with First Speed v1 v1 in the first direction in first passage part 11a.First flowing changed course wall 14 in second channel part 11b with the second pressure P 2, with second speed v2 v2 in a second direction to liquid redirection.Second flowing changed course wall 15 with the 3rd pressure P 3, with third speed v3 along third direction v3 to liquid redirection.Owing to after the first flowing changed course wall 14, second channel cross-sectional area A21+A22 is more than the first passage cross-sectional area A1 before the first flowing changed course wall 14, so second speed v2 will be less than First Speed v1.Correspondingly, third speed v3 is lower than second speed v2.By reducing the speed of cleaning mixture, its momentum reduces, and produces the distribution improved.
There is flowing changed course wall and combination that area increases can have high pressure from beginning at cleaning mixture, thus it is distributed to all of liquid distributor well.Then each liquid distributor by dis-tribute washing liquid and makes it slow down.This means that cleaning mixture is applied on the side of pulp web and need not mix with filtrate, this gives more efficient washing.
Second flowing changed course wall 15 causes the distribution even more improved of cleaning mixture compared with the situation only with the first changed course wall 14.The momentum of the liquid clashing into two changed course walls significantly reduces, and namely cleaning mixture is slowed.Cleaning mixture outside paper pulp on form one layer, rather than at each isolated point directly through paper pulp.
Show altering course in part through the second flowing changed course wall 15 when flow with the laboratory research of colored cleaning mixture, and realize surprising good clean result when another part of flow flows through above the second flowing changed course wall 15.The latter is owing to contacting with the second flowing changed course wall 15 and do not make its speed reduce, but cleaning mixture is distributed in the slanting jet in more large area by formation.This flowing part has little vertical force component, it means that it is not directly through paper pulp but forms one layer on the outside of paper pulp.Therefore, the combination clashing into a sub-flow of wall and another subflow amount of top injection provides the excellent applying of cleaning mixture, and this forms the wide distribution layer propagated through paper pulp.
Therefore, according to preferred embodiment, liquid distributor 10 is arranged so that the Part I of fluid flow is altered course by the second flowing changed course wall 15, and the Part II of fluid flow and is directly entered barrel chamber 8 above the second flowing changed course wall 15.With reference to Fig. 2, this by being arranged in by the nozzle 20 of liquid distributor 10 suitably highly and can realize to the second suitable distance flowing changed course wall 15.It is preferred that nozzle 20 (or appropriate section of liquid distributor 10) substantially with the surface in alignment (as shown in Figure 4) of the bucket wall 5 towards bucket chamber 8.Then while disturbing paper pulp as few as possible, realize that sub-flow second time is redirected and another subflow amount is emitted directly toward the advantageous combination of barrel chamber 8, because liquid distributor 10 does not substantially extend from bucket wall 5.
Third channel cross-sectional area A3, A3 in third channel part 11c ' is throughout more than the second channel cross-sectional area A21+A22 in second channel part 11b.In fig. 2, the 3rd cross-sectional area A3, A3 ' includes two parts from the second flowing changed course wall 15 to outlet 13 with different constant area A3, A3 ', because nozzle 20 is not all the time towards the surface of bucket wall 5.But the 3rd cross-sectional area A3, A3 ' can be certainly also always constant to outlet 13 from the second flowing changed course wall 15 or continue to increase (in two parts such as Fig. 3) or from the second flowing changed course wall 15 to exporting 13 portion constant and part increases.But, the 3rd cross-sectional area A3, A3 ' does not preferably reduce from the second flowing changed course wall 15 to outlet 13, because this can gather way and pressure equally.
It is preferred that the 3rd cross-sectional area A3 is at least twice of the second cross-sectional area A21+A22.It is preferred that the second cross-sectional area A21+A22 is also at least twice of the first cross-sectional area A1.
In the embodiment of fig. 2, liquid distributor 10 includes nozzle 20, and nozzle 20 includes first passage part 11a, second channel part 11b, entrance 12 and the first flowing changed course wall 14.Third channel part 11c and the second flowing changed course wall 15 is arranged on barrel wall 5.The program can change the prior art nozzle only with straight entrance with novel improved nozzle 20.The liquid distributor 10 that a kind of alternative is complete is nozzle 20.Any combination formed in bucket wall 5 and/or nozzle 20 is all possible.This is applicable to all embodiments.But, the first flowing changed course wall 14 can be more more than any flowing changed course wall abrasion subsequently, because liquid runs into the first flowing changed course wall 14 with the speed higher than any flowing changed course wall subsequently.Therefore, a kind of cheap scheme is to have the first readily replaceable flowing changed course wall 14 in wearing part.
In fig. 2, liquid distributor 10 has outlet 13, and this outlet 13 is perpendicular to barrel wall 5.Why this is preferable as cleaning mixture is distributed better in like fashion.It is also possible for changing the embodiment with the outlet being arranged essentially parallel to barrel wall 5 into.It is arranged essentially parallel to wall additionally, following embodiment may be disposed to have or becomes the outlet of any angle therebetween.
Fig. 4 illustrates to have and exports the liquid distributor in peripheral region with cut-out 17 (or cavity) at second channel part 11b.Cut-out 17 causes that the improvement of relatively wide cleaning mixture plume and cleaning mixture is distributed.The greater part of flow will flow at the second flowing changed course wall 15.
The cut-out 17 of Fig. 4 has round-shaped.This provides the liquid effective distribution in vertically and horizontally plane.The latter it is meant that seen from above, the nozzle 20 of Fig. 4 by liquid distribution above sector bigger compared with the nozzle of such as Fig. 2.This reduces or eliminates the needs that nozzle 20 is arranged in the special purpose device being properly oriented within.
Other shape being different from circle is certainly possible to, for instance oval cut-out, the cut portion with straight edge are graded.
As in the embodiment of Fig. 2,3,4,7, the advantage in second (or second from the bottom) channel part 11b with two subchannels is in that the cross-sectional area of each subchannel can be bigger compared with the embodiment such as with four subchannels.Bigger cross-sectional area means the cleaning mixture of wider distribution.
It is therefore advantageous to embodiment has two subchannels in channel part 11b second from the bottom, and the cross-sectional area of each subchannel is large enough to realize the slanting jet of cleaning mixture in export department office.Liquid distributor 10 can have cut-out to improve the distribution of cleaning mixture further at each subchannel place in such as Fig. 4.
There are two subchannels second from the bottom and have the additional advantage that compared with the situation with greater number of subchannel, such as four subchannels second from the bottom have less obstruction risk.There is multiple subchannel, it is possible to sometimes in the region that different subchannels meet, have obstruction, especially when cleaning mixture comprises substantial amounts of cellulose fibre.
Fig. 5 a, b illustrate another the favourable liquid distributor 10 according to the present invention.(Fig. 5 b is the side view of rotation 90 degree compared with Fig. 5 a.) passage 11 includes first passage part 11a, second channel part 11b ' and third channel part 11c.First passage part 11a has first passage wall 16a and is placed between entrance 12 and the first flowing changed course wall 14.Second channel part 11b ' has second channel wall 16b and is placed between the first flowing changed course wall 14 and outlet 13.Second channel wall 16b is by flowing changed course wall 14 and first passage wall 16a interconnection.Second channel part 11b ' is open channel portions, and it is wider than first passage part 11a throughout.Third channel part 11c is placed between the second flowing changed course wall 15 and outlet 13, and wider than second channel part 11b ' throughout.
Second channel part 11b ' provides the restriction flowing space fewer than first passage part 11a so that after the first flowing changed course wall 14, the speed v 2 of liquid is less than the speed v 1 of liquid before the first flowing changed course wall 14.
The embodiment of Fig. 5 causes the wide plume from the cleaning mixture having time above and from the side.Due to opening second channel part 11b ', also there is minimum obstruction risk.
Second channel wall 16b is preferably arranged into so that the flowing space covering about 180 degree of sectors is arranged in second channel part 11b ' (time seen from above, namely in the horizontal plane in figure).
In the example shown of Fig. 5, first passage part 11a is the cylindrical space limited by first passage wall 16a, and second channel wall 16b is bending, for instance semi-cylindrical shape.Other shape is also possible.
Shown in Fig. 6 a-c, liquid distributor 10, is otherwise distributed in cleaning mixture on pulp web.Use the same nozzle 20 in Fig. 2 and 3, but in such as second and channel part 11b second from the bottom in each nozzle 20, there are four subchannels second from the bottom.In this embodiment, the quantity of subchannel second from the bottom can certainly be any quantity.
Liquid distributor 10 is here arranged as including multiple nozzle 20.In order to simply, Fig. 6 a and c only illustrates three nozzles 20, but preferably has nozzle 20 along being perpendicular to the direction of Fig. 1 view pressure roller 2 along Fig. 1 always.This can regard a big liquid distributor 10 as, and wherein first passage part 11a and channel part 11b second from the bottom is divided into some subchannels.Total cross-sectional area of first passage part 11a then becomes A11+A12+A13.
This means the 3rd and last channel part 11c become very large, both significantly slow down cleaning mixture being distributed in large area by cleaning mixture.This can improve further with the third channel cross-sectional area increased in Fig. 3.
But, when the channel part 11b second from the bottom from different spray nozzles is facing with each other as in Fig. 6 b, it is possible to still have liquid flowing to concentrate.When meeting from the flowing of two different spray nozzles 20, it will have the concentration towards pulp web to flow up.What become apparent from is have less subchannel second from the bottom in each nozzle 20.The flowing that can occur like when the distance of the outlet to channel part 11b second from the bottom is close to the second flowing changed course wall 15 is concentrated.But described flowing is concentrated and is not and the part of the same difficulty well known in the prior art, and major part liquid is still placed in pulp web layer, and not as prior art to concentrate bundle directly through pulp web.
But, liquid distribution on pulp web can be improved by installing nozzle 20 so that not facing with each other from the channel part 11b second from the bottom of different spray nozzles 20, referring to Fig. 6 c.
Also illustrate that last channel part 11c can have enlarged end 21 in fig. 6 c, thus increasing the distance exporting to the second flowing changed course wall 15 from channel part 11b second from the bottom.
Figure 7 illustrates the embodiment with single-nozzle 20, single-nozzle 20 has channel part 11b second from the bottom, and this channel part 11b second from the bottom has two subchannels second from the bottom pointing to two enlarged end 21.
Fig. 8 illustrates another embodiment, and it has single-nozzle 20 as Fig. 7, and single-nozzle 20 is arranged to be exported by cleaning mixture in big the 3rd (and last) channel part 11c.Nozzle 20 includes the second channel part 11b not having subchannel, and cleaning mixture exports along the direction towards third channel part 11c center.In third channel part 11c, cleaning mixture slows down and is distributed in larger area, and thus actually whole third channel part 11c is filled with the cleaning mixture from nozzle 20.Preferably provide and nozzle 20 is arranged in third channel part 11c to be properly oriented within the device of layout.
Each embodiment discloses two flowing changed course walls and the changed courses that adjoint area increases, but the three or more flowing changed course walls and changed course with area increase are also possible, and especially very good when speed is greatly reduced, otherwise this meeting very drain space.If such as there being four channel parts, then fourth lane part can be last channel part, and third channel part can be channel part second from the bottom.This is also suitable for corresponding manner when there being even more channel part.
Haveing the additional advantage that comparable prior art uses bigger and/or less nozzle particularly with embodiment in Fig. 6 a-c, this forms more cheap scheme.
In Fig. 2-8, liquid distributor 10 is arranged in barrel wall 5, and does not extend in barrel chamber 8.In order to reduce the mixing of cleaning mixture and filtrate and reduce the interference to pulp web transmission, this is preferably.
In liquid distributor passage 11, the cross section of each subchannel can be advantageously circle.Certainly, the invention is not restricted to shown embodiment, but can change in the scope of claims.
Claims (14)
- null1. one kind for washing the liquid distributor (10) in the equipment (100) of cellulose pulp，Wherein pulped cloth is set in bucket (5) and transmits，Described bucket (5) includes barrel wall and bucket chamber (8)，Described liquid distributor (10) includes being arranged in the first direction (v1) and receives the entrance (12) of liquid、It is arranged to the first flowing changed course wall (14) altered course by described liquid (v2) in a second direction、It is arranged to described liquid exports the outlet (13) in described bucket chamber (8)、And there is the passage (11) of first passage part (11a) and second channel part (11b)，Described first passage part (11a) has first passage cross-sectional area (A1、And be placed between described entrance (12) and described first flowing changed course wall (14) A11+A12+A13)，Described second channel part (11b) has second channel cross-sectional area (A21+A22) and is placed between described first flowing changed course wall (14) and described outlet (13)，It is characterized in that，Described second channel cross-sectional area (A21+A22) is throughout more than described first passage cross-sectional area (A1、A11+A12+A13)；Described liquid distributor (10) also includes the second flowing changed course wall (15) after described first flowing changed course wall (14)；Described passage (11) includes third channel part (11c), and described third channel part (11c) has third channel cross-sectional area (A3, A3 ') and is placed between described second flowing changed course wall (15) and described outlet (13)；Described second flowing changed course wall (15) is arranged to alter course described liquid along third direction (v3)；And described third channel cross-sectional area (A3, A3 ') throughout more than described second channel cross-sectional area (A21+A22).
- 2. liquid distributor (10) as claimed in claim 1, it is characterized in that, described second channel cross-sectional area (A21+A22) is constant from described first flowing changed course wall (14) to described outlet (13) and/or increases, but does not reduce.
- 3. liquid distributor (10) as claimed in claim 1 or 2, it is characterized in that, described third channel cross-sectional area (A3, A3 ') is constant from described second flowing changed course wall (15) to described outlet (13) and/or increases, but does not reduce.
- 4. liquid distributor (10) as claimed in claim 1 or 2, it is characterised in that described liquid distributor (10) is arranged in described bucket wall, and does not extend in described bucket chamber (8).
- 5. liquid distributor as claimed in claim 1 or 2, it is characterized in that, it is arranged so that the Part I of liquid stream is by described second flowing changed course wall (15) changed course, and the Part II of liquid stream through described second flowing changed course wall (15) top and is directly entered described bucket chamber (8).
- 6. liquid distributor as claimed in claim 1 or 2, it is characterised in that the cut-out (17) in the exit region of channel part second from the bottom.
- 7. liquid distributor as claimed in claim 1 or 2, it is characterised in that the part of described passage (11) is divided into each parallel subchannel.
- 8. liquid distributor as claimed in claim 7, it is characterised in that channel part second from the bottom is divided into each parallel subchannel second from the bottom, and different channel parts second from the bottom is facing with each other.
- 9. liquid distributor as claimed in claim 1 or 2, it is characterized in that, described entrance (12), described first flowing changed course wall (14), described first passage part (11a) and described second channel part (11b) are arranged in nozzle (20).
- 10. liquid distributor as claimed in claim 9, it is characterised in that described liquid distributor (10) includes the multiple nozzles (20) being arranged in public last channel part.
- 11. liquid distributor as claimed in claim 10, it is characterised in that described public last channel part includes at least one enlarged end (21).
- null12. one kind is used for the liquid distributor (10) washing in the equipment (100) of cellulose pulp，Wherein pulped cloth is set in bucket (5) and transmits，Described bucket (5) includes barrel wall and bucket chamber (8)，Described liquid distributor (10) includes being arranged in the first direction (v1) and receives the entrance (12) of liquid、It is arranged to the first flowing changed course wall (14) altered course by described liquid (v2) in a second direction、It is arranged to described liquid exports the outlet (13) in described bucket chamber (8)、And there is the passage (11) of first passage part (11a) and second channel part (11b ')，Described first passage part (11a) has first passage wall (16a) and described first passage part (11a) is placed between described entrance (12) and described first flowing changed course wall (14)，Described second channel part (11b ') there is the second channel wall (16b) described flowing changed course wall (14) and described first passage wall (16a) interconnected and described second channel part (11b) is placed between described first flowing changed course wall (14) and described outlet (13)，It is characterized in that，Described second channel part (11b ') it is open channel portions，Described second channel part is wider than described first passage part (11a) throughout；Described liquid distributor (10) also includes the second flowing changed course wall (15) after described first flowing changed course wall (14)；Described passage (11) includes third channel part (11c), and described third channel part (11c) is placed between described second flowing changed course wall (15) and described outlet (13)；Described second flowing changed course wall (15) is arranged to alter course described liquid along third direction (v3)；And described third channel part (11c) is wider than described second channel part (11b ') throughout.
- 13. liquid distributor (10) as claimed in claim 12, it is characterized in that, described second channel part (11b ') provides the restriction flowing space fewer than described first passage part (11a) so that after described first flowing changed course wall (14), the speed (v2) of liquid is less than the speed (v1) of liquid before described first flowing changed course wall (14).
- 14. one kind for washing the equipment (100) of cellulose pulp, wherein pulped cloth is set in bucket (5) and transmits, described bucket (5) includes barrel wall and bucket chamber (8), wherein at least one liquid distributor (10) for cleaning mixture is connected to described bucket (5), it is characterized in that, described at least one liquid distributor (10) is as according to any one of aforementioned claim.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1251084-8 | 2012-09-25 | ||
| SE1251084A SE537341C2 (en) | 2012-09-25 | 2012-09-25 | Liquid distributor for a washing machine and a washing machine |
| PCT/SE2013/050870 WO2014051493A1 (en) | 2012-09-25 | 2013-07-04 | Liquid distributor for a washing apparatus, and washing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104704166A CN104704166A (en) | 2015-06-10 |
| CN104704166B true CN104704166B (en) | 2016-07-27 |
Family
ID=50388725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380047025.0A Expired - Fee Related CN104704166B (en) | 2012-09-25 | 2013-07-04 | Liquid distributor and washing facility for washing facility |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2900865B1 (en) |
| CN (1) | CN104704166B (en) |
| BR (1) | BR112014032283B1 (en) |
| CA (1) | CA2872229C (en) |
| SE (1) | SE537341C2 (en) |
| WO (1) | WO2014051493A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110403554B (en) * | 2018-04-27 | 2022-09-27 | 三花亚威科电器设备（芜湖）有限公司 | Dispenser and dishwasher |
| SE546043C2 (en) * | 2021-09-24 | 2024-04-23 | Valmet Oy | Apparatus for washing cellulose pulp comprising a liquid distributor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE448524B (en) * | 1985-10-28 | 1987-03-02 | Kamyr Ab | Feed for distributing fluid on moving material strip |
| US4951879A (en) * | 1988-11-23 | 1990-08-28 | Fay James N | Liquid distribution device |
| US20020179745A1 (en) * | 2001-06-05 | 2002-12-05 | Dolan Patrick Lee | Pulp washing shower |
| CN101553617A (en) * | 2006-11-30 | 2009-10-07 | 美佐纸业股份有限公司 | Method and unit for seal adjustment in a washing arrangement and a washing arrangement comprising such a unit |
| CN101680169A (en) * | 2007-05-15 | 2010-03-24 | 美佐纸业股份有限公司 | Apparatus and method for washing pulp in a rotatable drum |
| CN102171393A (en) * | 2008-10-01 | 2011-08-31 | 美佐纸业股份有限公司 | Press washer for washing cellulose pulp |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4697292A (en) * | 1983-02-04 | 1987-10-06 | Lavalley Industrial Plastics, Inc. | Shower pipes for rotary drum filter |
| US5183536A (en) * | 1990-12-17 | 1993-02-02 | Kamyr, Inc. | Atmospheric diffuser improved lower screens backflushing |
| JPH08229439A (en) * | 1995-02-28 | 1996-09-10 | Nippon Kopatsuku Kk | Nozzle |
| SE531152C2 (en) * | 2005-12-22 | 2009-01-07 | Metso Paper Inc | Washing machine for washing pulp with rotating flow in the propagation zone |
-
2012
- 2012-09-25 SE SE1251084A patent/SE537341C2/en not_active IP Right Cessation
-
2013
- 2013-07-04 WO PCT/SE2013/050870 patent/WO2014051493A1/en active Application Filing
- 2013-07-04 BR BR112014032283-0A patent/BR112014032283B1/en not_active IP Right Cessation
- 2013-07-04 CA CA2872229A patent/CA2872229C/en active Active
- 2013-07-04 EP EP13840460.3A patent/EP2900865B1/en not_active Not-in-force
- 2013-07-04 CN CN201380047025.0A patent/CN104704166B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE448524B (en) * | 1985-10-28 | 1987-03-02 | Kamyr Ab | Feed for distributing fluid on moving material strip |
| US4951879A (en) * | 1988-11-23 | 1990-08-28 | Fay James N | Liquid distribution device |
| US20020179745A1 (en) * | 2001-06-05 | 2002-12-05 | Dolan Patrick Lee | Pulp washing shower |
| CN101553617A (en) * | 2006-11-30 | 2009-10-07 | 美佐纸业股份有限公司 | Method and unit for seal adjustment in a washing arrangement and a washing arrangement comprising such a unit |
| CN101680169A (en) * | 2007-05-15 | 2010-03-24 | 美佐纸业股份有限公司 | Apparatus and method for washing pulp in a rotatable drum |
| CN102171393A (en) * | 2008-10-01 | 2011-08-31 | 美佐纸业股份有限公司 | Press washer for washing cellulose pulp |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2900865A4 (en) | 2016-06-15 |
| EP2900865B1 (en) | 2017-09-27 |
| SE1251084A1 (en) | 2014-03-26 |
| CA2872229C (en) | 2020-03-31 |
| EP2900865A1 (en) | 2015-08-05 |
| BR112014032283A2 (en) | 2017-06-27 |
| SE537341C2 (en) | 2015-04-07 |
| WO2014051493A1 (en) | 2014-04-03 |
| BR112014032283B1 (en) | 2021-05-25 |
| CA2872229A1 (en) | 2014-04-03 |
| CN104704166A (en) | 2015-06-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 |