CN102388178B - Press for dewatering suspension - Google Patents
Press for dewatering suspension Download PDFInfo
- Publication number
- CN102388178B CN102388178B CN201080016168.1A CN201080016168A CN102388178B CN 102388178 B CN102388178 B CN 102388178B CN 201080016168 A CN201080016168 A CN 201080016168A CN 102388178 B CN102388178 B CN 102388178B
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- China
- Prior art keywords
- guided plate
- squeezer
- cylinder
- dehydration cylinder
- gap
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- 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
- 238000013459 approach Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 7
- 229920003043 Cellulose fiber Polymers 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 230000007704 transition Effects 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
- 238000010586 diagram 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
- 238000005406 washing 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
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 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
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, described squeezer comprises: be arranged as the distributor that receives the liquid suspension of solid biologic material and distribute described suspension by means of dehydration cylinder level; Be arranged in groove and the guided plate of dehydration cylinder below, described plate and groove are disposed in from described dehydration cylinder one segment distance place, for form gap between a side dehydration cylinder and opposite side guided plate and groove, under squeezer operation, liquid can be pressed in described gap from suspension, thus the slurry dewatering from solid biologic material production; Be arranged as the feeding-passage that liquid suspension is directed to described gap from distributor.
The present invention relates to the method for the squeezer of clean the above type equally.
Background technology
Be intended to the process of the liquid suspension fluid dewatering of solid biologic material often to utilize squeezer, wherein water is pressed in cylinder from suspension, obtains relatively dry slurry thus from biomaterial.The example of such process is from cellulose fibre, to produce paper making pulp, and described process often comprises one or more squeezers, and wherein slurry is dehydrated and may be washed.Depending on whether slurry is only dehydrated is still also washed, and is often called this type of squeezer of water-removing press or wash press machine, often comprises at least one swing roller, and slurry is extruded against described cylinder.In the time that slurry is extruded against cylinder, water is pressed into cylinder inside, 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.By means of groove with realize the extruding of slurry around the guided plate of cylinder.Between a side channel and guided plate and opposite side cylinder, forming described gap, joins along the direction of rotation of cylinder in described gap.
In the squeezer of the above type during liquid suspension fluid dewatering, in order sometimes to there is following situations in the slurry that produces dehydration, slurry sticks in described gap, slurry sticks to liquid suspension is fed in the device of squeezer, or slurry sticks to the slurry of dehydration from the device of squeezer discharge.In this case, the slurry that squeezer must stop and remaining in wherein must be removed.EP1035250 describes a kind of squeezer, wherein can reduce the lower part of groove for approaching wherein possible slurry.In addition, can be outwards and the side part of the skewed slot that dips down as plate washer for approaching another part again of cylinder.
Summary of the invention
The object of this invention is to provide for by the squeezer of the liquid suspension fluid dewatering of solid biologic material, described squeezer provides the method to remove the material that sticks to squeezer inner side than the simpler mode of prior art.
Realize this object by following squeezer, described squeezer comprises: be arranged as the distributor that receives the liquid suspension of solid biologic material and by means of dehydration cylinder, described suspension level is distributed; Be arranged in groove and the guided plate of dehydration cylinder below, described guided plate and groove are disposed in from described dehydration cylinder one segment distance place, for form gap between a side dehydration cylinder and opposite side guided plate and groove, under squeezer operation, liquid can be pressed in described 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 described gap from distributor, described squeezer is characterised in that, guided plate is rotatable around the trunnion axis at the first end place that is arranged in guided plate, at the second end place relative with its first end of guided plate, mobile member is connected to guided plate thus, for regulating the distance of guided plate from dehydration cylinder.
The advantage of this squeezer is its compact conformation and simple, and the simple possible slurry having sticked between cylinder and guided plate that approaches is provided simultaneously, and squeezer can promptly be cleaned at possible stopping period.
According to embodiment, vertically to observe, the 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 be from roller shifting, and the slurry that makes to stick between cylinder and guided plate can fall and leave gap under gravity, also auxiliary by some equipment possibly.
According to embodiment, guided plate is disposed in described 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 cylinder, and if simplify the removal of slurry in the situation that there are these.
Preferably, guided plate has compressive surface, arranges that described compressive surface forms described gap with dehydration together with cylinder, and feeding-passage has be arranged as the nozzle end being communicated with the upper end of compressive surface in squeezer operation thus.Its advantage is because guided plate extends to feeding-passage, during the slurry of removing in the gap having sticked between guided plate and cylinder, provides good proximity.
According to embodiment, sealing strip is arranged in the upper end of compressive surface and is included between the lower feedboard in feeding-passage.Its advantage is to obtain the slight risk that is combined in the leakage of squeezer run duration liquid suspension to the good proximity in the gap between guided plate and cylinder.
According to embodiment, guided plate is positioned on the horizontal plane identical with distributor at least in part.The advantage of this embodiment is to provide 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 that space or needs are very little for guided plate at squeezer side place.More preferably, the core of guided plate is between distributor and dehydration cylinder.
According to preferred embodiment, mobile member is hydraulic operated mobile member.It is simple and when large power is provided when extruding slurry in the gap between cylinder and guided plate that this type of mobile member is handled.
According to preferred embodiment, mobile member is arranged as along the direction operation of level in fact.This provides the very compact of mobile member and embodiment flexibly.
Another object of the present invention is to provide the mode flexibly cleaning for the squeezer of the liquid suspension fluid dewatering of solid biologic material.
Realize this object by the method cleaning for the squeezer of the liquid suspension fluid dewatering of solid biologic material, described squeezer comprises the distributor that is arranged as the liquid suspension of reception solid biologic material and by means of dehydration cylinder, described suspension level is distributed, guided plate and the groove that is arranged in dehydration cylinder below, described guided plate and groove are disposed in from described dehydration cylinder one segment distance place for form gap between a side dehydration cylinder and opposite side guided plate and groove, can be pressed into from suspension in described gap the slurry of the dehydration for obtaining solid biologic material at squeezer run duration liquid, and be arranged as the feeding-passage that liquid suspension is directed to described gap from distributor, described method is characterised in that, guided plate is rotatable around the trunnion axis at the first end place that is arranged in guided plate, at the second end place relative with its first end of guided plate, mobile member is connected to guided plate for regulating the distance of guided plate from dehydration cylinder thus, during clean squeezer, the second end of guided plate is moved away from the direction of dehydration cylinder by means of described mobile member edge thus, making at guided plate and dehydration the space between cylinder become can approach for clean.
The advantage of the method is to have sticked to approaching and remove and becoming very flexibly and simple of material between guided plate and cylinder.
Other advantages of the present invention and feature become obvious from following description and claims.
Brief description of the drawings
Hereinafter, will and the present invention be described with reference to the drawings by means of exemplary embodiment.
Fig. 1 is perspective view, and diagram is according to an embodiment of the invention for squeezer that dewater and possibility washing fibrous suspensions.
Fig. 2 is viewgraph of cross-section, and along the squeezer of section II-II pictorial image 1.
Fig. 3 is viewgraph of cross-section, and the amplification of the guided plate of pictorial image 1 and Fig. 2.
Fig. 4 is viewgraph of cross-section, and is shown in the guided plate of Fig. 3 of squeezer run duration.
Fig. 5 is viewgraph of cross-section, and is shown in the guided plate of the Fig. 3 in service mode.
Detailed description of the invention
Fig. 1 and Fig. 2 schematically illustrate for by the squeezer 1 of the liquid suspension fluid dewatering of cellulose fibre, and the liquid suspension of described cellulose fibre is for the production of for example paper.Fig. 1 illustrates squeezer 1 in perspective view, and some of them part is 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 illustrated best in Fig. 1, squeezer 1 is provided with longitudinal first and distributes screw rod 2.Distribute screw rod 2 to have the entrance 4 that place at center, described entrance 4 is for the liquid suspension of the solid biologic material of the form with cellulose fibre.The percentage by weight of cellulose fibre in liquid suspension be 3% to 15% percentage by weight typically.Liquid suspension also comprises possible impurity, is conventionally no more than 1% percentage by weight substantially, and residue, and 84% to 96% percentage by weight is water.Layout entry conductor 6 for the introduction from liquid suspension source (not shown) to entrance 4 by liquid suspension, for example, is introduced from pulper.
First distributes screw rod 2 to distribute by a liquid suspension that shape entrance 4 receives along the first dehydration cylinder 8.Dehydration cylinder 8 has liquid-permeable layer, for example perforated plate or filter cloth, described liquid-permeable layer allows cellulose fibre to remain on the surface of cylinder 8 with the form of dehydration slurry during the periphery extruding suspension against 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 in practice and distributes dewater the typically cardinal principle 75% to 120% of active length LT of cylinder 8 of the active length LF of screw rod 2, more typically 80% to 110%, the active length LF of described distribution screw rod 2 distributes screw rod 2, along it, liquid suspension is introduced to the length to the cylinder 8 that dewaters, and the active length LT of described dehydration cylinder 8 is the length of dehydration cylinder 8 along its reception and extruding slurry.Be understood that in Fig. 1 mentioned above illustrated active length LF and LT, distribute screw rod 2 and cylinder 8 all to there is bearing and end pieces etc. not shown in Figure 1, they are included in its total length separately but not included in active length, as mentioned, 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 is also provided with the second distribution screw rod 10, conduit 11 and the second dehydration cylinder 12, arranges that described conduit 11 is for introducing liquid suspension to the second distribution screw rod 10.Obvious from Fig. 2, squeezer 1 is symmetrical around its core in fact.Therefore, mainly describe the right hand portion of squeezer 1 as shown in Figure 2, and be understood that the left-hand part of squeezer 1 has corresponding in fact form, only mirror image reversal.
As obvious in the detailed amplification from Fig. 1, distribute screw rod 2 to there is housing 14, be arranged as under the operation that is distributing screw rod 2 and rotate in described housing 14 internal screw 16.Due to screw rod 16, to observe from screw rod 16 center, its core is conical along both direction, so distributed equably along the active length LT of dehydration cylinder 8 by a liquid suspension that shape entrance 4 is given.Along the circumference of housing 14 11 o'clock substantially place observe, feeding-passage 18 in fact from feed worm 2 part extend towards dehydration cylinder 8, as shown in FIG. 2.Obvious from Fig. 1, feeding-passage 18 has in fact and the active length LI that distributes the active length LF of screw rod 2 to equate, say more accurately, length L I normally length L F 80% to 110%.
Under squeezer 1 operation, liquid suspension is fed to entrance 4 by conduit 6.Liquid suspension for example can be from fibre washer or pulper, and described fibre washer or pulper are connected to and are similar to another squeezer of squeezer 1 and see that from technological angle described another squeezer is located thereon trip.The screw rod 16 that suspension is assigned with screw rod 2 distributes and guides to gap 20 by feeding-passage 18, and described gap 20 is formed between a side dehydration cylinder 8 and opposite side guided plate 22 and groove 24.As obvious from Fig. 2, to observe and further observe along the direction of rotation R of cylinder 8 from feeding-passage 18, gap 20 has contracted width.Result, in the time that first liquid suspension is pushed and pushes against groove 24 subsequently against guided plate 22 in constringency cleft 20 by cylinder 8, liquid will be forced out from liquid suspension, and be pressed in cylinder 8, the cellulose fibre remaining on the outside of cylinder 8 with this will form the further dehydration slurry of cellulose fibre.Its solid body burden is for example 15% to 55% percentage by weight, more typically then the slurry of the dehydration of 20% to 50% percentage by weight is observed substantially and is discharged from cylinder 8 in the position at 9 o'clock along the periphery of cylinder 8 according to Fig. 2, and transport by means of discharging screw rod 26, for further processing, for example, wash and/or be dried.
Squeezer 1 can be provided with one or more wash mills 28, when residual slurry is in gap 20 by means of described wash mill by for example clear water or filtered fluid or be incorporated in slurry from the condensed water of another process stage, thereby impurity is washed away from slurry.
At squeezer 1 run duration, slurry may stick in gap 20.This causes stopping of squeezer 1, and groove 24 must be lowered straight down, as shown in the arrow N by Fig. 2, makes it can cleanedly remove slurry for approaching cylinder 8.According to the present invention and to a certain extent more detailed description hereinafter, guided plate 22 also can reduce in mode flexibly.
Fig. 3 illustrates according to an embodiment of the invention in treating the guided plate 22 of running status, distributes the state of screw rod 22 when interior when liquid suspension can be incorporated into.Rotatable by means of trunnion axis 30 guided plates 22.As obvious from Fig. 1, on along continuous straight runs, to observe, guided plate 22 extends along the whole active length LT of cylinder 8 in fact, and guided plate 22 has 80% to 120% the active length LP of the active length LT that typically is cylinder 8.Axle 30 is arranged in squeezer 1 its end separately by bearing, and also can be arranged in 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 the level height place identical with distributing screw rod at least in part, and the core C of guided plate 22 is distributing between screw rod 2 and dehydration cylinder 8.
As illustrated best in Fig. 3, feeding-passage 18 has enterprising flitch 32 and lower feedboard 34.Guided plate 22 has compressive surface 36, provides described compressive surface 36 to form gap 20 together with cylinder 8.The upper end 38 of compressive surface 36 contacts with the nozzle segment 42 of lower feedboard 34 by sealing strip 40, and feeding-passage 18 is discharged in gap 20 in described spray nozzle part office.Guided plate 22 has breach 46 in 44 in the top, and trunnion axis 30 is for example fixed by welding in described breach 46.
The position of guided plate 22 height of part from distribution screw rod 2 extends to the position lower than the lower part of screw 2.Guided plate 22 is connected to hydraulic piston 50 at its 48 places, lower end.Hydraulic piston 50 is fixed in squeezer 1, and as observed in Fig. 3, described hydraulic piston 50 is disposed in and distributes bolt 2 belows.Hydraulic piston 50 is arranged to along moving in horizontal direction in fact.As obvious from Fig. 1, multiple 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 Figure 1.Control module 54 is controlled the amount that is incorporated into the pressurized hydraulic fluid of hydraulic piston 52 from described source 52, can regulate thus the transition point of hydraulic piston 50 along continuous straight runs.Between the adjustment period of the transition point of hydraulic piston 50, control module 54 is controlled pressurized hydraulic fluid giving from pressurised hydraulic fluid body source 52 to piston 50.
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 described chuck 58 is extruded against brake 56 in the position of the hydraulic piston 50 of Fig. 3.Therefore, hydraulic piston 50 and guided plate 22 arrive first end position, the width that this provides the gap 20 between guided plate 22 and cylinder 8 to expect.Preferably, the piston of hydraulic piston 50 is provided with threaded adjustment device for finely tune the width in gap 20 in the time that the chuck 58 of hydraulic piston 50 is extruded against brake 56.
Treating in running status of Fig. 3, therefore hydraulic piston 50 moves the lower part of guided plate 22 48 along the direction that faces cylinder 8, for the width in the gap 20 that operation needs is provided.Hydraulic piston 50 is preferably provided with known machanical fastener itself, same after the pressure of hydraulic system has discharged, and by means of described securing member, hydraulic piston 50 is fixed in Fig. 3 in 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 the pin 60 that diagram upwards refers in Fig. 3, guided plate 22 is locked in run location.In the time that groove 24 is pushed to its run location straight up, this pin 60 is pushed in the lower part 48 of guided plate 22 and guided plate 22 is locked in its run location.In the time that groove 24 reduces for cleaning, as described in more detail with reference to figure 5, pin 60 is followed it downwards and is drawn out from guided plate 22, and therefore described guided plate 22 is released.Another alternate embodiment is to keep hydraulic piston 50 to be pressurizeed consistently under the operation of squeezer, and therefore guided plate 22 is remained in its run location.
Fig. 4 is shown in squeezer 1 run duration guided plate 22 shown in Figure 3.In position shown in Figure 4, therefore hydraulic piston 50 remains on guided plate 22 in the position that the width that gap 2 expects is provided.As obvious from Fig. 4, liquid suspension by entrance 4 directed enter and be further directed to distribute screw rod 2.Distribute screw rod 2 that liquid suspension is distributed along the active length LT (as shown in Figure 1) of cylinder 8, and then liquid suspension is further guided to feeding-passage 18.During producing more dry slurry, liquid suspension arrive gap 20 by feeding-passage 18 and under cylinder 8 rotations described liquid suspension between cylinder 8 and the compressive surface 36 of guided plate 22, be extruded, this rotation illustrates with arrow R.After being extruded between the compressive surface 36 at guided plate 22 and cylinder 8, slurry is further squeezed into the drier solid constituent between cylinder 8 and groove 24, as segment map in Fig. 4 shows, but obvious from Fig. 2 the best.
Fig. 5 is viewgraph of cross-section and illustrates according to embodiments of the invention the guided plate 22 at Fig. 3 of maintenance position.For example use and maintenance position in the time that slurry has sticked in gap 20.In this type of situation, in Fig. 1 and Fig. 2, illustrated groove 24 will be lowered straight down according to illustrated arrow N in Fig. 2, and this allows the lower part that approaches cylinder 8 for clean.This vertical reduction 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 is no longer in its run location.Because guided plate 22 is arranged on squeezer 1 from it 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 downward reduction groove 24, hydraulic piston 50 is also activated, thereby because the control system of Fig. 1 54 is controlled pressurised hydraulic fluid body source 52, guided plate 22 is retracted from cylinder 8, be that hydraulic piston 50 pulls open along direction B the lower end of guided plate 22 48 from cylinder 8, guided plate 22 is along rotating around trunnion axis 30 towards the direction of distributing screw rod 2 thus.In Fig. 5, in illustrated position, hydraulic piston 50 is towards mechanical brake 56 drawing guide plates 22, and hydraulic piston 50 and guided plate 22 reach another end position thus.Along with hydraulic piston 50 end 48 of leaving behind, guided plate 22 is the axis of symmetry rotation around axle 30 by 44 places in the top.By this motion, gap 20 broaden and the lower end 48 of guided plate 22 be between cylinder 8 and the compressive surface 36 of guided plate 22, be formed on Fig. 5 in the illustrated ultimate range of S.Result, the slurry having sticked between compressive surface 36 and cylinder 8 discharges individually and drops downwards and leave gap 20, and/or because hydraulic piston 50 is left behind the lower end of guided plate 22 48 to widen into come-at-able width, operator can be simply by cleaning equipment or only its hand is inserted in gap 20, and discharge the slurry adhering to.As obvious from Fig. 5, gap 20 by until the upper end 44 of guided plate all broaden, until enter the porch of feeding-passage 18 and all broaden, consequently operator can approach the slurry having sticked in gap 20 simply, until feeding-passage 18 is discharged into 20Nei position, gap, compared with prior art this is crucial advantage, and near the slurry that for example approaching in EP1035250 and release has sticked to corresponding entrance is very difficult.In addition, guided plate 22 has according to the present invention than in obviously simpler structure of the plate washer shown in EP1035250.Other advantage be guided plate 22 its in Fig. 5 illustrated retract position at the side place of squeezer without any need for space, these are different from the scheme presenting in EP1035250.Therefore, the squeezer 1 with good grounds guided plate 22 of the present invention can be placed in the place with the confined space.
When gap 20 is cleaned while removing slurry, guided plate 22 can turn back in the running status for the treatment of 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 to be again fed to gap 20 by entrance 4, distribution screw rod 2 and feeding-passage 18.
The many variants that should recognize above-described embodiment in appended claim limited range are possible.
Describe hereinbefore and how to have utilized squeezer 1 for comprising the liquid suspension fluid dewatering of cellulose fibre.Be understood that and can utilize equally squeezer for by the solid biologic material dehydration of other types.The example of such material comprises polytype living beings to be drained off, that may wash, and described living beings are then for the production of fuel, for example, produce fuel by ethanol production process, biogas production process or fuel pellet production process.Also can utilize squeezer for before biomass burning by its dehydration.The example of the living beings that can dewater in above-described squeezer 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 can be also other liquid, for example the multiple organic or inorganic solvent that can be present in suspension to be drained off.
Describe hereinbefore, squeezer 1 is provided with one or more wash mills 28.It should be understood that squeezer also can be designed to without these devices if material to be drained off does not need washing.
Describe hereinbefore and how can utilize the hydraulic piston that is connected to pressurised hydraulic fluid body source 52 for controlling the position of guided plate 22.Be understood that the mobile member that can utilize other along continuous straight runs operations.For example, can use conventional liq lifter replace hydraulic piston, described liquid lifting unit is the position to the expectation of guided plate 22 by allows manual aspiration.Another possibility is to utilize with adjusting the threaded rod of bolt as mobile member, described threaded rod distribute screw rod 22 below operation, and can adjust its shift position by means of retainingf key.
Describe hereinbefore and there are two relatively squeezers 1 of the dehydration cylinder 8,12 of rotation.The present invention also can be applied in the squeezer with single dehydration cylinder.
Claims (9)
1. a squeezer, comprising:
Distributor (2), described distributor is arranged to and receives the liquid suspension of solid biologic material and distribute described suspension along dehydration cylinder (8) level,
Be arranged in groove (24) and the guided plate (22) of the below of described dehydration cylinder (8), described plate and groove are disposed in from described dehydration cylinder (8) one segment distance places, for forming gap (20) between the described guided plate (22) of the described dehydration cylinder (8) in a side and opposite side and groove (24), the in the situation that of described squeezer operation, liquid can be pressed into from described suspension described gap (20), for forming the slurry of dehydration of solid biologic material, and
Feeding-passage (18), described feeding-passage (18) is arranged as described liquid suspension is directed to described gap (20) from described distributor (2),
It is characterized in that, described guided plate (22) can rotate around trunnion axis (30), described trunnion axis (30) is disposed in the first end (44) of described guided plate (22) and locates, locate mobile member (50) to be connected to described guided plate (22) at described guided plate the second ends (48) relative with first end this plate (44) (22) thus, for regulating the distance (S) of described guided plate (22) from described dehydration cylinder (8)
Wherein vertically observe, the first end (44) of described guided plate (22) is positioned at the top of second end (48) of described guided plate, and described guided plate (22) is disposed in the below of described feeding-passage (18),
Wherein said guided plate (22) has compressive surface (36), described compressive surface (36) is arranged to and forms described gap (20) together with described dehydration cylinder (8), described feeding-passage (18) has nozzle end (42) thus, and described nozzle end (42) is arranged in described squeezer (1) run duration and is communicated with the upper end (38) of described compressive surface (36).
2. squeezer according to claim 1, wherein sealing strip (40) is arranged in the upper end (38) of described compressive surface (36) and is included between the lower feedboard (34) in described feeding-passage (18).
3. according to squeezer in any one of the preceding claims wherein, wherein said guided plate (22) is positioned on the horizontal plane identical with described distributor (2) at least in part.
4. according to squeezer in any one of the preceding claims wherein, wherein said guided plate (22) is positioned between described distributor (2) and described dehydration cylinder (8) at least in part.
5. squeezer according to claim 4, the core (C) of wherein said guided plate (22) is positioned between described distributor (2) and described dehydration cylinder (8).
6. according to squeezer in any one of the preceding claims wherein, wherein said mobile member is hydraulic operated mobile member (50).
7. according to squeezer in any one of the preceding claims wherein, wherein said mobile member (50) is arranged to along the direction of level (B) operation in fact.
8. a method for clean squeezer, described squeezer is for making the liquid suspension fluid dewatering of solid biologic material, and described squeezer comprises:
Distributor (2), described distributor (2) is arranged to and receives the liquid suspension of solid biologic material and distribute described suspension along dehydration cylinder (8) level,
Be arranged in groove (24) and the guided plate (22) of the below of described dehydration cylinder (8), described plate and groove are disposed in from described dehydration cylinder (8) one segment distance places, for forming gap (20) between the described guided plate (22) of the described dehydration cylinder (8) in a side and opposite side and groove (24), the in the situation that of described squeezer operation, liquid can be pressed into from described suspension described gap (20), for forming the slurry of dehydration of solid biologic material, and
Feeding-passage (18), described feeding-passage (18) is arranged as described liquid suspension is directed to described gap (20) from described distributor (2), it is characterized in that, described guided plate (22) can rotate around trunnion axis (30), described trunnion axis (30) is arranged in the first end (44) of described guided plate (22) and locates, locate mobile member (50) to be connected to described guided plate (22) at described guided plate the second ends (48) relative with first end this plate (44) (22) thus, for regulating the distance (S) of described guided plate (22) from described dehydration cylinder (8), during clean described squeezer (1), second end (48) of described guided plate (22) is moved away from the direction of described dehydration cylinder (8) by means of described mobile member (50) edge thus, space (20) between described guided plate (22) and described dehydration cylinder (8) is become and can approach for clean.
9. method according to claim 8, during clean described squeezer (1), described groove (24) is by mobile for approaching the bottom of described 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 CN102388178A (en) | 2012-03-21 |
| CN102388178B true 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 |
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 |
Family Cites Families (12)
| 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 |
| ATE186583T1 (en) * | 1994-08-22 | 1999-11-15 | Beloit Technologies Inc | PRESS ROLLER FOR TREATING A MATERIAL SUSPENSION, AND TWIN ROLLER AND SINGLE ROLLER FOR A PRESS FOR TREATING A MATERIAL SUSPENSION |
| 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 |
| SE0602268L (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 CA CA2758133A patent/CA2758133C/en active Active
- 2010-03-23 BR BRPI1010252-3A patent/BRPI1010252B1/en active IP Right Grant
- 2010-03-23 RU RU2011145300/12A patent/RU2495178C2/en active
- 2010-03-23 CN CN201080016168.1A patent/CN102388178B/en active Active
- 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 |
|---|---|
| WO2010116026A1 (en) | 2010-10-14 |
| RU2011145300A (en) | 2013-05-20 |
| BRPI1010252B1 (en) | 2021-01-26 |
| SE0900479A1 (en) | 2010-10-10 |
| CN102388178A (en) | 2012-03-21 |
| CA2758133A1 (en) | 2010-10-14 |
| CA2758133C (en) | 2018-03-20 |
| JP5662998B2 (en) | 2015-02-04 |
| RU2495178C2 (en) | 2013-10-10 |
| CL2011002479A1 (en) | 2012-05-04 |
| JP2012523503A (en) | 2012-10-04 |
| SE533686C2 (en) | 2010-12-07 |
| BRPI1010252A2 (en) | 2016-03-22 |
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