CN102388178A - Press for dewatering suspension - Google Patents
Press for dewatering suspension Download PDFInfo
- Publication number
- CN102388178A CN102388178A CN2010800161681A CN201080016168A CN102388178A CN 102388178 A CN102388178 A CN 102388178A CN 2010800161681 A CN2010800161681 A CN 2010800161681A CN 201080016168 A CN201080016168 A CN 201080016168A CN 102388178 A CN102388178 A CN 102388178A
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- China
- Prior art keywords
- guided plate
- squeezer
- dehydration cylinder
- cylinder
- gap
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 239000006194 liquid suspension Substances 0.000 claims abstract description 43
- 239000007787 solid Substances 0.000 claims abstract description 20
- 239000012620 biological material Substances 0.000 claims abstract description 19
- 230000018044 dehydration Effects 0.000 claims description 61
- 238000006297 dehydration reaction Methods 0.000 claims description 61
- 239000002002 slurry Substances 0.000 claims description 43
- 239000012530 fluid Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 7
- 229920003043 Cellulose fiber Polymers 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001867 inorganic solvent Inorganic materials 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/20—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using rotary pressing members, other than worms or screws, e.g. rollers, rings, discs
-
- 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
- D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
-
- 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
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- 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
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
- D21F1/74—Pulp catching, de-watering, or recovering; Re-use of pulp-water using cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Filtration Of Liquid (AREA)
- Treatment Of Sludge (AREA)
Abstract
A press (1) comprises a distribution device (2) arranged to receive a liquid suspension of solid biological material and to distribute said suspension horizontally along a dewatering drum (8). A guide plate (22) and a trough (24) arranged below the dewatering drum (8) are arranged at a distance from the dewatering drum (8) for forming a gap (20) between the dewatering drum (8) on one side and the guide plate (22) and the trough on the other side. A feed channel (18) is arranged to lead the liquid suspension from the distribution device (2) to said gap (20). The guide plate (22) is rotatable around a horizontal shaft (30), said horizontal shaft (30) being arranged at a first end (44) of the guide plate (22), whereby a transfer member (50) is connected to the guide plate (22) at a second end (48) of the guide plate opposite the first end (44) of the plate for adjusting a distance (S) of the guide plate (22) from the dewatering drum (8).
Description
Technical field
The present invention relates to squeezer, said squeezer comprises: be arranged as the liquid suspension that receives the solid biologic material and distribute the distributor of said suspension by means of dehydration cylinder level; Be arranged in the groove and the guided plate of dehydration cylinder below; Said plate and groove are disposed in from said dehydration cylinder one distance; Be used between side dehydration cylinder and opposite side guided plate and groove, forming the gap; Squeezer operation down liquid can be pressed in the said gap from suspension, thereby the slurry that dewaters from the solid biologic material production; Be arranged as the feeding-passage that liquid suspension is directed to said gap from distributor.
The present invention relates to the method for the squeezer that cleans the above type equally.
Background technology
Be intended to the process of the liquid suspension fluid dewatering of solid biologic material is often utilized squeezer, wherein water is pressed in the cylinder from suspension, obtains dried relatively slurry from biomaterial thus.The instance of such process is from cellulose fibre, to produce paper making pulp, and said process often comprises one or more squeezers, and wherein slurry is dehydrated and possibly be washed.Depending on that slurry is whether only dehydrated still also is washed, and often is called this type of squeezer of water-removing press or wash press machine, often comprises at least one swing roller, and slurry is supporting said cylinder and is being extruded.When slurry was supporting cylinder and is extruded, water was pressed into drum, and the residual slurry of dehydration is struck off from cylinder by means of so-called scraper plate on the outside of cylinder and for example.Realize the extruding of slurry by means of groove with around the guided plate of cylinder.Between a side channel and guided plate and opposite side cylinder, forming said gap, joins along the direction of rotation of cylinder in said gap.
In the squeezer of the above type during the liquid suspension fluid dewatering; For scenario takes place in slurry sometimes that produce dehydration; Slurry sticks in the said gap; Slurry sticks to liquid suspension is fed in the device of squeezer, and perhaps slurry sticks to the slurry that dewaters from the device of squeezer discharging.In this case, the squeezer slurry that must stop and remaining in wherein must be removed.EP1035250 describes a kind of squeezer, and the lower part that wherein can reduce groove is used near wherein possible slurry.In addition, can be outwards and the side sections of the skewed slot that dips down be used for another part again as plate washer near cylinder.
Summary of the invention
The purpose of this invention is to provide the squeezer that is used for the liquid suspension fluid dewatering of solid biologic material, said squeezer provides to remove the method that sticks to the inboard material of squeezer than the simpler mode of prior art.
Realize this purpose through following squeezer, said squeezer comprises: be arranged as liquid suspension that receives the solid biologic material and the distributor that said suspension level is distributed by means of the dehydration cylinder; Be arranged in the groove and the guided plate of dehydration cylinder below; Said guided plate and groove are disposed in from said dehydration cylinder one distance; Be used between side dehydration cylinder and opposite side guided plate and groove, forming the gap; Under the squeezer operation, liquid can be pressed in the said gap from suspension, is used to form the slurry of the dehydration of solid biologic material; And be arranged as the feeding-passage that liquid suspension is directed to said gap from distributor; Said squeezer is characterised in that; Guided plate is rotatable around the trunnion axis at the first end place that is arranged in guided plate; Thus guided plate with its first end second opposed end place mobile member is connected to guided plate, be used to regulate the distance of guided plate from the dehydration cylinder.
The advantage of this squeezer is its compact conformation and simple, provides simple near the possible slurry that sticks between cylinder and the guided plate simultaneously, makes squeezer promptly to be cleaned at possible stopping period.
According to embodiment, vertically to observe, first end of guided plate is positioned at the other end top of guided plate.The advantage of this embodiment is that the lower part of guided plate can make the slurry that has sticked between cylinder and the guided plate can fall and leave the gap under gravity from roller shifting, and is also auxiliary through some equipment possibly.
According to embodiment, guided plate is disposed in said feeding-passage below.The advantage of this embodiment is from feeding-passage and downwards towards guided plate guiding slurry, and this reduces slurry and adheres to or be squeezed in the risk between guided plate and the cylinder, and if in the removal that slurry takes place to simplify under these the situation.
Preferably, guided plate has compressive surface, arranges that said compressive surface forms said gap with the dehydration cylinder, and feeding-passage has and is arranged as the nozzle end that in squeezer operation, is communicated with the upper end of compressive surface thus.Its advantage is because guided plate extends to feeding-passage, during removal has sticked to the slurry in the gap between guided plate and the cylinder, good proximity is provided.
According to embodiment, sealing strip is arranged in the upper end of compressive surface and is included between the following feedboard in the feeding-passage.Its advantage is to obtain to be combined in the slight risk that squeezer run duration liquid suspension leaks to the good proximity in the gap between guided plate and the cylinder.
According to embodiment, guided plate is positioned on the horizontal plane identical with distributor at least in part.The advantage of this embodiment provides compact squeezer.
According to embodiment, guided plate is at least in part between distributor and dehydration cylinder.This embodiment provides the structure of highly compact, because distributor and guided plate are shared the other common space of dehydration cylinder.In addition, do not need space or the very little space of needs to be used for guided plate at place, squeezer side.More preferably, the core of guided plate is between distributor and dehydration cylinder.
According to preferred embodiment, mobile member is hydraulic operated mobile member.This type of mobile member is handled simple and when big power is provided during extruding slurry in the gap between cylinder and guided plate.
According to preferred embodiment, mobile member is arranged as the edge direction operation of level in fact.This provides the very compactness and embodiment flexibly of mobile member.
Another object of the present invention provides the flexible way of the squeezer that cleans the liquid suspension fluid dewatering that is used for the solid biologic material.
Method with the squeezer that cleans the liquid suspension fluid dewatering that is used for the solid biologic material realizes this purpose; Said squeezer comprises liquid suspension that is arranged as reception solid biologic material and the distributor that said suspension level is distributed by means of the dehydration cylinder; Guided plate and the groove that is arranged in dehydration cylinder below; Said guided plate and groove are disposed in from said dehydration cylinder one distance and are used between side dehydration cylinder and opposite side guided plate and groove, forming the gap; Can be pressed into the slurry of the dehydration that is used to obtain the solid biologic material in the said gap from suspension at squeezer run duration liquid; And be arranged as the feeding-passage that liquid suspension is directed to said gap from distributor; Said method is characterised in that; Guided plate is rotatable around the trunnion axis at the first end place that is arranged in guided plate; With its first end second opposed end place mobile member being connected to guided plate and being used to regulate the distance of guided plate from the dehydration cylinder of guided plate, second end of guided plate is moved along the direction away from the dehydration cylinder by means of said mobile member during the cleaning squeezer thus thus, and making that space between guided plate and dehydration cylinder becomes can be near to be used for cleaning.
The advantage of this method is that the approaching of material that has sticked between guided plate and the cylinder becomes very flexibly with simple with removing.
Other advantages of the present invention and characteristic become obvious from following description and accompanying claims.
Description of drawings
Hereinafter, will and the present invention be described with reference to the drawings by means of exemplary embodiment.
Fig. 1 is a perspective view, and diagram is that be used to dewater according to an embodiment of the invention and the squeezer possibility washing fibrous suspensions.
Fig. 2 is a viewgraph of cross-section, and along the squeezer of section II-II pictorial image 1.
Fig. 3 is a viewgraph of cross-section, and the amplification of the guided plate of pictorial image 1 and Fig. 2.
Fig. 4 is a viewgraph of cross-section, and is shown in the guided plate of Fig. 3 of squeezer run duration.
Fig. 5 is a viewgraph of cross-section, and is shown in the guided plate of the Fig. 3 in the service mode.
The specific embodiment
Fig. 1 and Fig. 2 schematically illustrate the squeezer 1 that is used for the liquid suspension fluid dewatering of cellulose fibre, and the liquid suspension of said cellulose fibre is used for the for example production of paper.Fig. 1 illustrates squeezer 1 in perspective view, some of them partly are shown specifically and some coverings are lifted and remove, and Fig. 2 illustrates along the squeezer 1 shown in the section II-II of Fig. 1.
As in Fig. 1, illustrating best, squeezer 1 is provided with vertical first and distributes screw rod 2.Distribute screw rod 2 to have the inlet 4 that place at the center, said inlet 4 is used for the liquid suspension with the solid biologic material of the form of cellulose fibre.The percentage by weight of cellulose fibre in liquid suspension typically is 3% to 15% percentage by weight.Liquid suspension also comprises possible impurity, is no more than 1% percentage by weight substantially usually, and residue, and promptly 84% to 96% percentage by weight is a water.Arrange entry conductor 6 be used for liquid suspension from the liquid suspension source (not shown) for example introduce to the introduction of inlet 4 from pulper.
First distributes screw rod 2 to distribute the liquid suspension that receives through some shape inlet 4 along the first dehydration cylinder 8.Dehydration cylinder 8 has liquid-permeable layer; For example perforated plate or filter cloth; Said liquid-permeable layer allows cellulose fibre to remain on the surface of cylinder 8 with the form of dehydration slurry during supporting the periphery extruding suspension of cylinder 8, and liquid is pressed in the inside of cylinder 8 and is pulled away.
In fact; Distribute screw rod 2 to extend along the whole length of dehydration cylinder 8; This means that in practice the active length LF that distributes screw rod 2 typically is the cardinal principle 75% to 120% of the active length LT of dehydration cylinder 8; More typically 80% to 110%, the active length LF of said distribution screw rod 2 distributes screw rod 2 along it liquid suspension to be introduced the length to the cylinder 8 that dewaters, and the active length LT of said dehydration cylinder 8 is the length of dehydration cylinder 8 along its reception and extruding slurry.Be understood that in Fig. 1 mentioned above the illustrated active length LF and LT; Distribute screw rod 2 and cylinder 8 all to have not at bearing shown in Fig. 1 and end part etc.; They are included in its total length separately but are not included in the active length; As mention, this active length is that liquid suspension is assigned with, is extruded respectively to produce the more length of dry finish along it.
As obvious from Fig. 1 and Fig. 2, squeezer 1 also is provided with second and distributes screw rod 10, conduit 11 and the second dehydration cylinder 12, arranges that said conduit 11 is used for liquid suspension is introduced to the second distribution screw rod 10.Obvious from Fig. 2, squeezer 1 is symmetrical around its core in fact.Therefore, mainly description as the right hand portion of squeezer 1 shown in figure 2, and be understood that the left-hand part of squeezer 1 has corresponding in fact form, only mirror image reversal.
Detailed amplification as from Fig. 1 is obvious, distributes screw rod 2 to have housing 14, is arranged as rotation under the operation that is distributing screw rod 2 in said housing 14 internal screw 16.Because screw rod 16 is observed from the center of screw rod 16, its core is conical along both direction, so distributed equably through the active length LT of a liquid suspension that shape inlet 4 is given along dehydration cylinder 8.Circumference along housing 14 was being located observation substantially at 11 o'clock, and feeding-passage 18 extends towards dehydration cylinder 8 from the top of feed worm 2 in fact, and is as it be shown in fig. 2.Obvious from Fig. 1, feeding-passage 18 has in fact the active length LI that equates with the active length LF that distributes screw rod 2, say more accurately, length L I normally length L F 80% to 110%.
Under squeezer 1 operation, liquid suspension is fed to inlet 4 through conduit 6.Liquid suspension for example can be from fibre washer or pulper, and said fibre washer or pulper are connected to another squeezer of being similar to squeezer 1 and see that from technological angle said another squeezer is positioned at its upper reaches.Suspension is assigned with screw rod 16 distribution of screw rod 2 and guides to gap 20 through feeding-passage 18, and said gap 20 is formed between side dehydration cylinder 8 and opposite side guided plate 22 and the groove 24.As obvious from Fig. 2, to observe and further observe from feeding-passage 18 along the direction of rotation R of cylinder 8, gap 20 has contracted width.The result; When liquid suspension by cylinder 8 in constringency cleft 20 during at first against guided plate 22 extruding and subsequently against groove 24 extruding; Liquid will be forced out from liquid suspension; And be pressed in the cylinder 8, remain in the further dehydration slurry that cellulose fibre on the outside of cylinder 8 will form cellulose fibre with this.Its dried solids content for example is 15% to 55% percentage by weight; More typically the slurry of the dehydration of 20% to 50% percentage by weight is observed substantially along the periphery of cylinder 8 according to Fig. 2 then and is discharged from cylinder 8 in the position at 9 o'clock; And transport by means of discharging screw rod 26; To be used for further processing, for example washing and/or dry.
Squeezer 1 can be provided with one or more wash mills 28; When residual slurry is in gap 20 by means of said wash mill for example clear water or filtered fluid or be incorporated in the slurry from the condensed water of another process stage, thereby with impurity from the slurry flush away.
At squeezer 1 run duration, slurry possibly stick in the gap 20.This causes stopping of squeezer 1, and groove 24 must be lowered straight down, as by shown in the arrow N among Fig. 2, is used for making it to be cleaned near cylinder 8 and removes slurry.More describe in detail hereinafter according to the present invention and to a certain extent, guided plate 22 also can reduce with flexible way.
Fig. 3 diagram is in the guided plate 22 of waiting the state that moves according to an embodiment of the invention, the state in the time of promptly in liquid suspension can be incorporated into distribution screw rod 22.By means of trunnion axis 30 guided plates 22 is rotatable.As obvious from Fig. 1, to observe on the along continuous straight runs, guided plate 22 extends along the whole active length LT of cylinder 8 in fact, and promptly guided plate 22 has 80% to 120% the active length LP of the active length LT that typically is cylinder 8.Axle 30 is installed in the squeezer 1 its place, end separately by bearing, and also can be installed in the squeezer 1 along the one or more other position of the length L P of guided plate 22 by bearing.
As shown in Fig. 3, guided plate 22 is positioned at least in part and distributes the identical level height place of screw rod, and the core C of guided plate 22 is distributing between screw rod 2 and the dehydration cylinder 8.
Like illustrated best in Fig. 3, feeding-passage 18 has last feedboard 32 and following feedboard 34.Guided plate 22 has compressive surface 36, provides said compressive surface 36 to form gap 20 with cylinder 8.The upper end 38 of compressive surface 36 contacts with the nozzle segment 42 of following feedboard 34 through sealing strip 40, and feeding-passage 18 is discharged in the gap 20 in said spray nozzle part office.Guided plate 22 has breach 46 in 44 in the top, and trunnion axis 30 for example is fixed by welding in the said breach 46.
Guided plate 22 extends to the position of the lower part that is lower than screw 2 from the position of the height on the top of distribution screw rod 2.Guided plate 22 is connected to hydraulic piston 50 at its 48 places, lower end.Hydraulic piston 50 is fixed in the squeezer 1, and as in Fig. 3, observing, said hydraulic piston 50 is disposed in and distributes bolt 2 belows.Hydraulic piston 50 is arranged to along moving on the horizontal direction in fact.As obvious from Fig. 1, a plurality of hydraulic pistons 50 can be arranged along the length L P of guided plate.Hydraulic piston 50 can be connected to pressurised hydraulic fluid body source 52, as shown in Fig. 1.Control module 54 controls are incorporated into the amount of the pressurized hydraulic fluid of hydraulic piston 52 from said source 52, can regulate the transition point of hydraulic piston 50 along continuous straight runs thus.Between the adjustment period of the transition point of hydraulic piston 50, control module 54 control pressurized hydraulic fluids are 50 give from pressurised hydraulic fluid body source 52 to piston.
As obvious from Fig. 3, mechanical brake 56 is set on squeezer, thus the horizontal transition point of restriction hydraulic piston 50 along continuous straight runs.The piston of hydraulic piston is provided with chuck 58, and said chuck 58 is extruded to brake 56 in the position of the hydraulic piston 50 of Fig. 3.Therefore, hydraulic piston 50 arrives the first end position with guided plate 22, and this provides the width of gap 20 expectations between guided plate 22 and the cylinder 8.Preferably, the piston of hydraulic piston 50 is provided with the width that the threaded adjustment device is used for fine setting gap 20 when the chuck 58 of hydraulic piston 50 is extruded to brake 56.
Treating in the operation state of Fig. 3, therefore hydraulic piston 50 has moved the lower part 48 of guided plate 22 along the direction that faces cylinder 8, is used to provide the width in the gap 20 of operation needs.Hydraulic piston 50 preferably is provided with known machanical fastener itself, and is same after the pressure of hydraulic system has discharged, and by means of said securing member hydraulic piston 50 is fixed among Fig. 3 in the illustrated position.As substituting of this mechanical fasteners in hydraulic piston 50 self, can be provided with pin according to alternate embodiment groove 24, as diagram in Fig. 3 upwards the pin 60 of finger guided plate 22 is locked in the run location.This pin 60 is urged in the lower part 48 of guided plate 22 and with guided plate 22 and is locked in its run location when groove 24 is pushed to its run location straight up.When groove 24 reduced for cleaning, as describing in more detail with reference to figure 5, pin 60 was followed it and is drawn out downwards and from guided plate 22, and therefore said guided plate 22 is released.Another alternate embodiment is to keep hydraulic piston 50 under the operation of squeezer, to be pressurizeed consistently, makes guided plate 22 therefore remain in its run location.
Fig. 4 is shown in squeezer 1 run duration at the guided plate shown in Fig. 3 22.In the position shown in Fig. 4, therefore hydraulic piston 50 remains on guided plate 22 in the position of the width that gap 2 expectations are provided.As obvious from Fig. 4, liquid suspension 4 is directed into and further being directed to and distributes screw rod 2 through entering the mouth.Distribute screw rod 2 that the active length LT (as Fig. 1 shown in) of liquid suspension along cylinder 8 distributed, and then liquid suspension is further guided to feeding-passage 18.During producing more dried slurry, liquid suspension through feeding-passage 18 arrival gaps 20 and under cylinder 8 rotations said liquid suspension between the compressive surface 36 of cylinder 8 and guided plate 22, be extruded, this rotation illustrates with arrow R.When after being extruded between the compressive surface 36 of guided plate 22 and the cylinder 8, slurry further is squeezed into the drier solid constituent between cylinder 8 and groove 24, show like segment map in Fig. 4, but obvious from Fig. 2 the best.
Fig. 5 is viewgraph of cross-section and illustrates according to the guided plate 22 of embodiments of the invention at Fig. 3 of maintenance position.For example, uses in slurry maintenance position when having sticked in the gap 20.In this type of situation, in Fig. 1 and Fig. 2 illustrated groove 24 will be according to Fig. 2 in illustrated arrow N be lowered straight down, this allows to be used for cleaning near the lower part of cylinder 8.The vertical reduction of this of groove itself is known, and for example in the right hurdle of Fig. 1 of EP1035250, describes.Refer again to Fig. 5 of the present invention, obvious is that groove 24 no longer is in its run location.Because guided plate 22 is installed in squeezer 1 from one's body and not on groove 24 movably, guided plate 22 is released from groove 24.Therefore, guided plate 22 is not followed the downward vertical decline of groove 24.Method according to an embodiment of the invention; Except that downward reduction groove 24; Hydraulic piston 50 also is activated; Thereby because the control system of Fig. 1 54 control pressurised hydraulic fluid body sources 52 retract guided plate 22 from cylinder 8, promptly hydraulic piston 50 8 draws back the lower end 48 of guided plate 22 along direction B from cylinder, and guided plate 22 is along 30 rotations towards the direction of distributing screw rod 2 around trunnion axis thus.In the illustrated position, hydraulic piston 50 is towards mechanical brake 56 drawing guide plates 22 in Fig. 5, and hydraulic piston 50 reaches another end position with guided plate 22 thus.Along with hydraulic piston 50 end 48 of leaving behind, guided plate 22 in the top 44 places around the axis of symmetry rotation of axle 30.Through this motion, gap 20 broadens and between the lower end 48 of guided plate 22 is in the compressive surface 36 of cylinder 8 and guided plate 22, is formed among Fig. 5 with the illustrated ultimate range of S.The result; Having sticked to slurry between compressive surface 36 and the cylinder 8 discharges individually and drops downwards and leave gap 20; And/or since hydraulic piston 50 left behind in the lower end 48 of guided plate 22 and widen into come-at-able width; The operator can be simply with cleaning equipment or only its hand is inserted in the gap 20, and discharge the slurry that adheres to.As obvious from Fig. 5; Gap 20 will all broaden until the upper end 44 of guided plate; Promptly all broaden until the porch that gets into feeding-passage 18, consequently the operator can be simply near the slurry that sticks in the gap 20, the position in feeding-passage 18 is discharged into gap 20; Compared with prior art this is crucial advantage, for example in EP1035250 near and to discharge near sticked to the corresponding inlet slurry be unusual difficulty.In addition, guided plate 22 has according to the present invention than in the obviously simpler structure of the plate washer shown in the EP1035250.To be guided plate 22 illustratedly in Fig. 5 retract in the position place, side at squeezer without any need for the space at it to other advantage, and these are different with the scheme that in EP1035250, appears.Therefore, the squeezer 1 that has according to guided plate 22 of the present invention can be placed in the place that has the confined space.
When gap 20 has been cleaned slurry; Guided plate 22 can turn back at the operation state of treating shown in Fig. 3 by means of hydraulic piston 50; And groove 24 can turn back in the position shown in Fig. 1, make fibrous suspension can be once more through entering the mouth 4, distributing screw rod 2 and feeding-passage 18 to be fed to gap 20.
The many variants that should recognize above-described embodiment in appended claim institute restricted portion are possible.
Described hereinbefore and how to have utilized squeezer 1 to be used for the liquid suspension fluid dewatering that comprises cellulose fibre.Be understood that and utilize squeezer to be used for solid biologic material dehydration equally other types.The instance of such material comprises polytype living beings to be drained off, that possibly wash, and said living beings are used to produce fuel then, for example produces fuel through ethanol production process, biogas production process or fuel pellet production process.Squeezer also capable of using is used for before biomass burning its dehydration.The instance of the living beings that can in above-described squeezer, dewater comprises straw, bagasse, other annual crops, grass, vegetables top, leaf, coniferous forest dry branches and fallen leaves, algae, liver moss etc.Liquid in suspension can be water, but also can be other liquid, the for example multiple organic or inorganic solvent that can be present in the suspension to be drained off.
Describe hereinbefore, squeezer 1 is provided with one or more wash mills 28.It should be understood that then squeezer also can be designed to not have these devices if material to be drained off does not need washing.
Described hereinbefore and how can utilize the hydraulic piston that is connected to pressurised hydraulic fluid body source 52 to be used to control the position of guided plate 22.Be understood that the mobile member that can utilize other along continuous straight runs operations.For example, the enough conventional liq lifter replace hydraulic piston of ability, said liquid lifter is by the position of the expectation of allows manual aspiration to guided plate 22.Another possibility be utilize have adjust bolt threaded rod as mobile member, said threaded rod distribute screw rod 22 below move, and can adjust its shift position by means of retainingf key.
Described hereinbefore and had two squeezers 1 of the dehydration cylinder 8,12 of rotation relatively.The present invention also can be applied in the squeezer with single dehydration cylinder.
Claims (12)
1. squeezer comprises:
Distributor (2), said distributor are arranged to the liquid suspension and edge dehydration cylinder (8) level that receive the solid biologic material and distribute said suspension,
Be arranged in the groove (24) and the guided plate (22) of the below of said dehydration cylinder (8); Said plate and groove are disposed in from said dehydration cylinder (8) one distance; To be used between the said guided plate (22) of the said dehydration cylinder (8) of a side and opposite side and groove (24), forming gap (20); Liquid can be pressed into from said suspension the said gap (20) under the situation of said squeezer operation, with the slurry of the dehydration that is used to form the solid biologic material, and
Feeding-passage (18), said feeding-passage (18) are arranged as said liquid suspension are directed to said gap (20) from said distributor (2),
It is characterized in that; Said guided plate (22) can center on trunnion axis (30) rotation; Said trunnion axis (30) is disposed in first end (44) of said guided plate (22) and locates; Locate mobile member (50) is connected to said guided plate (22) with first end this plate (44) second opposed end (48) said guided plate (22) thus, to be used to regulate the distance (S) of said guided plate (22) from said dehydration cylinder (8).
2. squeezer according to claim 1 is wherein vertically observed, and first end (44) of said guided plate (22) is positioned at the top of second end (48) of said guided plate.
3. according to each described squeezer in the aforementioned claim, wherein said guided plate (22) is disposed in the below of said feeding-passage (18).
4. according to each described squeezer in the aforementioned claim; Wherein said guided plate (22) has compressive surface (36); Said compressive surface (36) is arranged to said dehydration cylinder (8) and forms said gap (20); Said thus feeding-passage (18) has nozzle end (42), and this nozzle end (42) is arranged in said squeezer (1) run duration and is communicated with the upper end (38) of said compressive surface (36).
5. squeezer according to claim 4, wherein sealing strip (40) is arranged in the upper end (38) of said compressive surface (36) and is included between the following feedboard (34) in the said feeding-passage (18).
6. according to each described squeezer in the aforementioned claim, wherein said guided plate (22) is positioned on the horizontal plane identical with said distributor (2) at least in part.
7. according to each described squeezer in the aforementioned claim, wherein said guided plate (22) is positioned between said distributor (2) and the said dehydration cylinder (8) at least in part.
8. squeezer according to claim 7, the core (C) of wherein said guided plate (22) is positioned between said distributor (2) and the said dehydration cylinder (8).
9. according to each described squeezer in the aforementioned claim, wherein said mobile member is hydraulic operated mobile member (50).
10. according to each described squeezer in the aforementioned claim, wherein said mobile member (50) is arranged to along the direction of level (B) operation in fact.
11. a method that cleans squeezer, said squeezer are used to make the liquid suspension fluid dewatering of solid biologic material, said squeezer comprises:
Distributor (2), said distributor (2) are arranged to the liquid suspension and edge dehydration cylinder (8) level that receive the solid biologic material and distribute said suspension,
Be arranged in the groove (24) and the guided plate (22) of the below of said dehydration cylinder (8); Said plate and groove are disposed in from said dehydration cylinder (8) one distance; To be used between the said guided plate (22) of the said dehydration cylinder (8) of a side and opposite side and groove (24), forming gap (20); Liquid can be pressed into from said suspension the said gap (20) under the situation of said squeezer operation, with the slurry of the dehydration that is used to form the solid biologic material, and
Feeding-passage (18); Said feeding-passage (18) is arranged as said liquid suspension is directed to said gap (20) from said distributor (2); It is characterized in that; Said guided plate (22) can center on trunnion axis (30) rotation; Said trunnion axis (30) is arranged in first end (44) of said guided plate (22) and locates; Locate mobile member (50) is connected to said guided plate (22) with first end this plate (44) second opposed end (48) said guided plate (22) thus; To be used to regulate the distance (S) of said guided plate (22) from said dehydration cylinder (8), second end (48) of said guided plate (22) is moved along the direction away from said dehydration cylinder (8) by means of said mobile member (50) during the said squeezer of cleaning (1) thus, and making that space (20) between said guided plate (22) and said dehydration cylinder (8) becomes can be near cleaning being used for.
12. method according to claim 11, during the said squeezer of cleaning (1), said groove (24) is moved to be used for the bottom near said dehydration cylinder (8) straight down thus.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0900479-7 | 2009-04-09 | ||
| SE0900479A SE533686C2 (en) | 2009-04-09 | 2009-04-09 | Pressure for dewatering a suspension, and ways of cleaning it |
| PCT/FI2010/050225 WO2010116026A1 (en) | 2009-04-09 | 2010-03-23 | A press for dewatering a suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102388178A true CN102388178A (en) | 2012-03-21 |
| CN102388178B CN102388178B (en) | 2014-09-17 |
Family
ID=42645083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080016168.1A Active CN102388178B (en) | 2009-04-09 | 2010-03-23 | Press for dewatering suspension |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP5662998B2 (en) |
| CN (1) | CN102388178B (en) |
| BR (1) | BRPI1010252B1 (en) |
| CA (1) | CA2758133C (en) |
| CL (1) | CL2011002479A1 (en) |
| RU (1) | RU2495178C2 (en) |
| SE (1) | SE533686C2 (en) |
| WO (1) | WO2010116026A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8828189B2 (en) | 2012-01-30 | 2014-09-09 | Andritz Inc. | Washer press with multiple nips and multiple displacement wash zones |
| US9333468B2 (en) | 2012-09-24 | 2016-05-10 | Abengoa Bioenergy New Technologies, Llc | Soak vessels and methods for impregnating biomass with liquid |
| US10188970B1 (en) * | 2018-03-26 | 2019-01-29 | Water Solutions, Inc. | Rotary drum screen for thin stillage filtration |
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| US3772144A (en) * | 1971-04-14 | 1973-11-13 | Improved Machinery Inc | Apparatus and method for thickening and washing suspensions containing fibrous material |
| US4750340A (en) * | 1985-10-31 | 1988-06-14 | Kamyr Ab | Apparatus for treating a fibre suspension |
| US4995988A (en) * | 1988-11-11 | 1991-02-26 | Sunds Defibrator Rauma Oy | Method and apparatus for thickening a slurry using a compression plate |
| EP1035250A2 (en) * | 1999-03-09 | 2000-09-13 | Kvaerner Pulping AB | Device for the treatment of a fibrous suspension |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE318183B (en) * | 1968-05-24 | 1969-12-01 | Karlstad Mekaniska Ab | |
| CA1014073A (en) * | 1972-05-15 | 1977-07-19 | Improved Machinery | Contrarotating drum filter with fluid biased baffles |
| SU589315A1 (en) * | 1976-07-02 | 1978-01-25 | Научно-Исследовательский И Проектно-Конструкторский Институт Целлюлозного Машиностроения | Drum-type thickener |
| JPS5481568A (en) * | 1977-12-09 | 1979-06-29 | Hitachi Ltd | Continuous filter-separator |
| SE448009B (en) * | 1983-09-16 | 1987-01-12 | Kamyr Ab | MATERIAL OUTPUT DEVICE |
| US5063840A (en) * | 1990-07-27 | 1991-11-12 | Ingersoll-Rand Company | Pulp press vat providing enhanced bottom access |
| WO1996006221A2 (en) * | 1994-08-22 | 1996-02-29 | Beloit Technologies, Inc. | A pulp slurry-handling press roll, and twin roll and single roll slurry-handling presses |
| AT405420B (en) * | 1997-05-26 | 1999-08-25 | Andritz Patentverwaltung | DEVICE FOR DRAINING AND WASHING FIBER FIBER SUSPENSIONS |
| JP2001252505A (en) * | 2000-03-14 | 2001-09-18 | Sumitomo Heavy Ind Ltd | Mechanism for adjusting interval between mat formation plate and drum filter in dehydration apparatus |
| SE0100259L (en) * | 2001-01-26 | 2001-12-17 | Kvaerner Pulping Tech | Distribution device for dispensing cellulose pulp in the form of a pulp web |
| SE530282C2 (en) * | 2006-10-27 | 2008-04-15 | Metso Paper Inc | Washing press comprising separation of filtrate |
| SE532437C2 (en) * | 2007-09-19 | 2010-01-19 | Andritz Oy | Drainage drum for dewatering cellulose pulp |
-
2009
- 2009-04-09 SE SE0900479A patent/SE533686C2/en unknown
-
2010
- 2010-03-23 CN CN201080016168.1A patent/CN102388178B/en active Active
- 2010-03-23 CA CA2758133A patent/CA2758133C/en active Active
- 2010-03-23 RU RU2011145300/12A patent/RU2495178C2/en active
- 2010-03-23 BR BRPI1010252-3A patent/BRPI1010252B1/en active IP Right Grant
- 2010-03-23 JP JP2012504038A patent/JP5662998B2/en active Active
- 2010-03-23 WO PCT/FI2010/050225 patent/WO2010116026A1/en active Application Filing
-
2011
- 2011-10-06 CL CL2011002479A patent/CL2011002479A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772144A (en) * | 1971-04-14 | 1973-11-13 | Improved Machinery Inc | Apparatus and method for thickening and washing suspensions containing fibrous material |
| US4750340A (en) * | 1985-10-31 | 1988-06-14 | Kamyr Ab | Apparatus for treating a fibre suspension |
| US4995988A (en) * | 1988-11-11 | 1991-02-26 | Sunds Defibrator Rauma Oy | Method and apparatus for thickening a slurry using a compression plate |
| EP1035250A2 (en) * | 1999-03-09 | 2000-09-13 | Kvaerner Pulping AB | Device for the treatment of a fibrous suspension |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2758133A1 (en) | 2010-10-14 |
| SE533686C2 (en) | 2010-12-07 |
| CL2011002479A1 (en) | 2012-05-04 |
| CN102388178B (en) | 2014-09-17 |
| CA2758133C (en) | 2018-03-20 |
| SE0900479A1 (en) | 2010-10-10 |
| WO2010116026A1 (en) | 2010-10-14 |
| BRPI1010252B1 (en) | 2021-01-26 |
| JP5662998B2 (en) | 2015-02-04 |
| RU2011145300A (en) | 2013-05-20 |
| JP2012523503A (en) | 2012-10-04 |
| BRPI1010252A2 (en) | 2016-03-22 |
| RU2495178C2 (en) | 2013-10-10 |
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