CN102747631B - Repulping apparatus used for decomposing fiber material and method thereof - Google Patents
Repulping apparatus used for decomposing fiber material and method thereof Download PDFInfo
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- CN102747631B CN102747631B CN201210120490.XA CN201210120490A CN102747631B CN 102747631 B CN102747631 B CN 102747631B CN 201210120490 A CN201210120490 A CN 201210120490A CN 102747631 B CN102747631 B CN 102747631B
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- pulper
- rotating cylinder
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- fibrous suspension
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
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- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The present invention relates to a drum repulping machine (1), comprising a rotatable drum (2), wherein the drum (2) comprises a decomposing component used for decomposing the fiber material contained in a fiber suspension liquid in the drum repulping machine, a washing component (8) used for recovering fibers from the decomposed fiber material in the decomposing component (7), and a concentrating component for increasing the paper pulp concentration of the fiber suspension liquid conveyed into the drum repulping machine (1). Further, the present invention also relates to a repulping machine system (17) and a method for decomposing fiber materials.
Description
Technical field
The present invention relates to the process for the fibrous material of paper or production, particularly recycled fibrous material, and a kind of process fibrous material time for decomposing the pulper system of fibrous material.
Background technology
In order to reuse all as usual cardboards or the such recycled fibrous material of the old paper that mixes, needing to be used for the recycled fibrous material that Paper or cardboard produces and decomposing.The decomposition of recycled fibrous material is carried out usually in pulper system, and this system has at least one main pulper, and fibrous material is transported in main pulper.Fibrous material decomposes and mixes with the water added in main pulper in main pulper, thus forms the mixture be made up of fibrous material and water, i.e. pulp suspension.In the bottom of main pulper, sieve plate is set; By the certified products (Akzept) of sieve plate, namely the qualified fiber remnants that can be used for Paper or cardboard production is finally transported in the reprocessing process of fibrous suspension, and not by the composition of the fibrous suspension of sieve plate, namely waste material, usually at least continued transported in secondary pulper, to proceed process to waste material, in waste material, comprise the pollutant being greater than hole diameter of sieve (perforated) plate, its main component be composite and contaminated thing around or stick on pollutant or be absorbed in fiber, fiber knot and the undecomposed fibrous material in pollutant.
Such as, usually use the pulper that can carry out sorting and fiber hydrolization as secondary pulper, wherein, utilize rotary body and sieve plate to carry out sorting Sum decomposition to the fibrous material be included in fibrous suspension.This secondary pulper can level or vertical or place with other posture, and there is the decomposition chamber of cylinder, spheroid form, or there is the pulper of arcuate walls shape, wherein can there be planar shaped or conical sieve plate, its decomposition chamber side arranges rotating rotary body.But this shortcoming being configured with the secondary pulper of rotary body and sieve plate is its low-down sorting ability, at this, in order to process the waste material in main pulper, need multiple such secondary pulper in practice.Above-mentioned another shortcoming of the secondary pulper of rotary body and sieve plate that is equipped with is, composite or composite material film are ground into fritter by its rotary body, this may hinder the separation of composite and cause gathering more composite, and therefore goes wrong in Paper or cardboard is produced.
Also using in some cases is equipped with the rotating cylinder pulper of rotating rotating cylinder (Trommel) as secondary pulper, its rotating cylinder comprises: for carrying out the fibrous material be included in fibrous suspension being transported to rotating cylinder pulper from main pulper decomposing and the Knock-Down Component rubbed further, and for the flushing parts of recycled fiber from the fibrous material be decomposed in Knock-Down Component.At this, also in the Knock-Down Component of rotating cylinder pulper, decomposition is transported to the fibrous material in rotating cylinder pulper by main pulper further, and wash by the fibrous material decomposed further in the Knock-Down Component of rotating cylinder pulper in the flushing parts of rotating cylinder pulper, with from the fiber wherein isolating recovery.
The advantage of rotating cylinder pulper is that it has higher sorting ability usually, but decomposition efficiency can counteract the dependence of the pulp density of the fibrous suspension be transported in rotating cylinder pulper.In order to realize good decomposition efficiency and good decomposition result, the pulp density being transported to the fibrous suspension in rotating cylinder pulper should be at least 8-10%, is preferably about 15%.But this pulp density value is still too high when decomposing the recycled fibrous material (such as old cardboard) being very difficult to decompose, and at this, the pulp density of the fibrous suspension in main pulper such as may be only 3-6%.The sorting ability mentioned above being here forced to use is more weak, be equipped with the secondary pulper of rotary body and sieve plate as secondary pulper.
Summary of the invention
The object of the invention is to propose a kind of novel rotating cylinder pulper and for a kind of pulper system of decomposing fibrous material and a kind of method.
Feature according to rotating cylinder pulper of the present invention is, the rotating cylinder of rotating cylinder pulper has condensation means, in order to improve the pulp density of the fibrous suspension be transported in rotating cylinder pulper, at this, this condensation means is arranged on the side, upstream about the Knock-Down Component in the rotating cylinder of rotating cylinder pulper along the flow direction of fibrous suspension in the rotating cylinder of rotating cylinder pulper.
In a kind of embodiment of rotating cylinder pulper according to the present invention, condensation means can be set directly at before the Knock-Down Component in the rotating cylinder of rotating cylinder pulper along the flow direction of fibrous suspension in the rotating cylinder of rotating cylinder pulper.The 15-35% of the length of condensation means in this case rotating cylinder total length.
In a kind of embodiment of rotating cylinder pulper according to the present invention, the sheath of the rotating cylinder of rotating cylinder pulper can have multiple opening in the condensation means of rotating cylinder pulper, the water in the fibrous suspension be transported in the rotating cylinder of this rotating cylinder pulper is got rid of, to improve the pulp density of fibrous suspension by these openings.Opening can be circular at this, and its diameter is 5-25mm.
In a kind of embodiment of rotating cylinder pulper according to the present invention, the rotating cylinder of rotating cylinder pulper has lowering or hoisting gear in condensation means, for effectively concentrating and/or conveying fiber suspension.
Feature according to pulper system of the present invention is, secondary pulper is rotating cylinder pulper, it has rotating rotating cylinder, and this rotating cylinder comprises for being included in the Knock-Down Component that the fibrous material in fibrous suspension decomposes to being transported in rotating cylinder pulper, for the flushing parts of recycled fiber from the fibrous material be decomposed in Knock-Down Component, with the condensation means of the pulp density in order to improve the fibrous suspension be transported in rotating cylinder pulper, wherein, condensation means is arranged on the side, upstream about the Knock-Down Component in the rotating cylinder of rotating cylinder pulper along the direction of fibrous suspension in the rotating cylinder of rotating cylinder pulper.In a kind of embodiment of pulper system according to the present invention, condensation means is set directly at along the flow direction of fibrous suspension before the Knock-Down Component in the rotating cylinder of rotating cylinder pulper in the rotating cylinder of rotating cylinder pulper.
In a kind of embodiment of pulper system according to the present invention, main pulper can be set to, higher than rotating cylinder pulper in the vertical direction of this system, at this, the waste material in main pulper moves to rotating cylinder pulper from main pulper by the potential energy produced by this difference in height.
In a kind of embodiment of pulper system according to the present invention, in the waste channel connecting main pulper and rotating cylinder pulper, arrange waste material valve, this valve is opened temporarily, to be transported to rotating cylinder pulper from main pulper by waste material.
In a kind of embodiment of pulper system according to the present invention, main pulper and rotating cylinder pulper are substantially arranged on identical height in the vertical direction of this system, at this, waste material in main pulper moves to rotating cylinder pulper by waste material pump from main pulper, and this waste material pump is arranged in the waste channel connecting main pulper and rotating cylinder pulper.
In a kind of embodiment of pulper system according to the present invention, waste material pump is used for being transported to rotating cylinder pulper from main pulper by waste material temporarily.
Feature according to the method for decomposing fiber web of the present invention is, the pulp density of fibrous suspension was improved before the fibrous material be included in fibrous suspension is decomposed, wherein, in condensation means in the rotating cylinder of rotating cylinder pulper, water is cleared out from fibrous suspension, at this, condensation means is arranged on the side, upstream about the Knock-Down Component in the rotating cylinder of rotating cylinder pulper along the flow direction of fibrous suspension in the rotating cylinder of rotating cylinder pulper.
In the method according to the invention, by water being got rid of from fibrous suspension in the condensation means of the rotating cylinder of rotating cylinder pulper, the pulp density of fibrous suspension can be improved, at this, condensation means is set directly at along the flow direction of fibrous suspension before the Knock-Down Component in rotating cylinder in the rotating cylinder of rotating cylinder pulper.
In the method according to the invention, fibrous suspension is transported to rotating cylinder pulper from the main pulper arranged higher than rotating cylinder pulper, and at this, fibrous suspension moves to rotating cylinder pulper from main pulper by means of the potential energy produced by difference in height.
In the method according to the invention, be transported in rotating cylinder pulper by opening waste vaive goalkeeper fibrous suspension temporarily, the main pulper of connection that this waste material valve is arranged in main pulper and the waste channel of rotating cylinder pulper.In this waste channel, be provided with waste material pump, be transported in rotating cylinder pulper for fibrous suspension to be basically in mutually level main pulper with rotating cylinder pulper.Fibrous suspension is sporadically transported to rotating cylinder pulper from main pulper by preferred use waste material pump.Rotating cylinder pulper has rotating rotating cylinder, and this rotating cylinder comprises: Knock-Down Component, for decomposing the fibrous material be included in fibrous suspension be transported in rotating cylinder pulper; Rinse parts, for recycled fiber from the fibrous material be decomposed in Knock-Down Component; And condensation means, for improving the pulp density of the fibrous suspension be transported in rotating cylinder pulper, wherein, condensation means is arranged on the side, upstream about the Knock-Down Component in the rotating cylinder of rotating cylinder pulper along the direction of fibrous suspension in the rotating cylinder of rotating cylinder pulper.Owing to there is condensation means in this rotating cylinder pulper, therefore this rotating cylinder pulper can be used as the secondary pulper of main pulper, namely as the pulper waste material coming from main pulper being carried out to reprocessing, in main pulper, fibrous material (such as pulp density is only 3-6%) when low-down pulp density is broken down into fiber, wherein, due to the condensation means in rotating cylinder pulper, the pulp density arriving the fibrous suspension in the Knock-Down Component of rotating cylinder pulper can bring up to 8-18%, this pulp density is conducive to the function of the Knock-Down Component in rotating cylinder pulper.
Accompanying drawing explanation
Preferred embodiment be described in detail to of the present invention referring now to accompanying drawing, wherein:
Fig. 1 diagrammatically illustrates the side view of rotating cylinder pulper,
Fig. 2 diagrammatically illustrates the side view of pulper system,
Fig. 3 diagrammatically illustrates the side view of the second pulper system.
Detailed description of the invention
Diagrammatically illustrate the side view of the rotating cylinder pulper 1 simplified very much in FIG, it has rotating rotating cylinder 2.In rotating cylinder pulper 1, be provided with feeder (Zuf ü hrblock) 4, the mixture of fiber web suspension or material to be decomposed and water is transported in rotating cylinder pulper 1 by this feeder.The input 3 aiming at feeder 4 is set in the rotating cylinder 2 of rotating cylinder pulper 1, is arrived the inside of rotating cylinder 2 to be delivered to the fibrous suspension in rotating cylinder pulper 1 by this delivery end.Be provided with output 5 at the relative other end of rotating cylinder 2, the scrap residues of discharging from rotating cylinder pulper 1 is cleared out by the inside of this output from rotating cylinder 2, to proceed process.
The fibrous material be included in rotating cylinder pulper 1 in fibrous suspension is decomposed.Usually in rotating cylinder pulper 1, fibrous material is decomposed like this: make substantially in the horizontal direction (as shown in Figure 1) or the rotating cylinder 2 that is obliquely installed from input 3 to output 5 rotates around its axle slightly downward, wherein, the fibrous material being transported to rotating cylinder 2 inside rises along with the rotation of rotating cylinder 2, and in certain stage, drop to the bottom of rotating cylinder 2, and resolve into fiber simultaneously.According to the volume of rotating cylinder pulper 1, the size of rotating cylinder 2 and rotating speed can be defined as, the material being transported to the input 3 of rotating cylinder 2 can be broken down into fiber well when arriving the output 5 of rotating cylinder 2.For clarity sake, the device required for rotation of rotating cylinder 2 is not shown in FIG.
As shown in Figure 1, the rotating cylinder 2 of rotating cylinder pulper 1 has along the flow direction of fibrous suspension: condensation means 6, for the fibrous suspension be transported in rotating cylinder pulper 1 is concentrated or be used for improving pulp density; Immediately following being Knock-Down Component 7 after condensation means 6, being included in fibrous material in fibrous suspension for decomposing or being present in material in fibrous suspension for rubbing or decomposing or discharge other; With flushing parts 8, for recycled fiber from the fibrous material be decomposed in Knock-Down Component 7.
The fibrous suspension be transported in rotating cylinder pulper 1 is arrived in the condensation means 6 in rotating cylinder 2 by the input 3 of feeder 4 and rotating cylinder 2.Sheath 9 on rotating cylinder 2 is not closed in the condensation means 6 of rotating cylinder 2, but there is opening 10 wherein, liquid or water are excluded from the fibrous suspension be transported to rotating cylinder 2 by these openings, and this will improve the pulp density of the fibrous suspension be present in the condensation means 6 of rotating cylinder 2.In rotating cylinder pulper 1, is filter tank 24 below condensation means 6, enters in this filter tank in condensation means 6 from rotating cylinder pulper 1 water got rid of and the fiber be included in water.
Water to be emanated in filter tank 24 in the condensation means 6 of rotating cylinder pulper 1 can such as be transported in the main pulper before rotating cylinder pulper 1 with the fibrous material that will be separated from water in same pulper system, schematically shows in figs. 2 and 3 with arrow 25.Alternatively this suspension primarily of water composition can also be used in rotating cylinder pulper 1 in the flushing parts 8 that next will carry out processing, or be transported to together in identical process with the certified products of main pulper to further process.Therefore, the size of the opening 10 of condensation means 6 is chosen as, the least possible pollutant is arrived in filter tank 24 by opening 10.
In embodiment as shown in Figure 1, opening 10 is round, but the shape of opening 10 also can be changing into polytype and form.Therefore opening 10 also can be the opening of gap shape.
If the opening 10 of condensation means 6 is circular in rotating cylinder pulper 1, then the diameter of circular open such as can be chosen as 5-25mm, is preferably 15-25mm, more preferably 18-22mm.The size of opening 10 can be identical or different.Opening 10 in rotating cylinder pulper 1 in condensation means 6 can also be configured to the opening of thin-and-long.The opening of thin-and-long can when manufacturing the condensation means of rotating cylinder pulper by circumferentially or the cramp bar of axial metal wire and support wires formed, or more simply by circumferentially, axle or other directions carry out machining to be formed to the gap that will be formed on the jacket surface of condensation means or opening.The width in thin-and-long opening or gap can be such as 2-12mm, is preferably 3-8mm.Opening is larger, just can more effectively be excluded from fibrous suspension by liquid, and therefore improves the pulp density of fibrous suspension.But, the size suitably limiting opening can stop larger, can enter in filter tank 24 by hurtful pollutant.According to the intensity of sheath, the length of the thin-and-long opening of machining can be selected like this: the structural strength making it to guarantee sheath.By selecting enough narrow gap, can prevent less desirable waste material residue (foamed plastics of such as fritter) from entering into filter tank by opening.
Fibrous suspension continues from the condensation means 6 rotating cylinder 2 of rotating cylinder pulper 1 Knock-Down Component 7 that flows in rotating cylinder 2.That is, condensation means 6 is directly being arranged on before Knock-Down Component 7 in the side, upstream of Knock-Down Component 7 on the internal flow direction of fibrous suspension in rotating cylinder pulper 1 relative to Knock-Down Component 7.The sheath 9 of rotating cylinder 2 is coherent in the Knock-Down Component 7 of rotating cylinder 2, and rotating cylinder 2 can have and is fixed on support (Ausleger) 11 on the sheath 9 of rotating cylinder 2 or lowering or hoisting gear 11 on the inner surface of rotating cylinder 2.The support 11 be positioned on rotating cylinder 2 inner surface makes material to be rubbed move upward with rotating cylinder 2, until material to be rubbed falls back to the bottom of rotating cylinder 2 when rotating cylinder 2 rotates.Be decomposed when falling wait the material rubbed or decomposed more and more by shock effect when falling at every turn.Wait rub material decomposed also can due to when rotating cylinder 2 rotates fiber Relative friction and occur.Utilize the Knock-Down Component 7 in rotating cylinder pulper 1 can complete rubbing effect for fibrous material, wherein, the last fiber knot be present in the pollutant in fibrous suspension also can be decomposed.
Move along the direction going to output 5 from input 3 on rotating cylinder 2 to make material to be rubbed, as shown in Figure 1, support 11 can be designed as track shape and with tilt attitude arrange, make support 11 tilt so thus: to make material move from input 3 along the direction towards output 5 when rotating cylinder 2 rotates.Alternatively or additionally, rotating cylinder 2 can also be made slightly to top rake, make the input 3 of output 5 slightly lower than rotating cylinder 2 of rotating cylinder 2, at this, the inner surface from rotating cylinder 2 when the material rubbed is in whereabouts continues whereabouts stretch journey along the longitudinal of rotating cylinder 2 relative to rotating cylinder.Rotating cylinder 2 can also in opposite direction or tilt backwards, make the output 5 of input 3 a little less than rotating cylinder 2 of rotating cylinder 2, but material pending when tilting with rotating cylinder 2 move backward unlike, at this support 11 be obliquely installed as shown in Figure 1 or lowering or hoisting gear 11, pending material is fed forward further.Therefore, the angle of inclination of rotating cylinder 2 can between-5 ° to 5 °, and at this, negative angle represents that rotating cylinder 2 tilts backwards, and positive-angle represents that rotating cylinder 2 turns forward.On the inner surface of rotating cylinder 2, can also along the ring-type intermediate plate 12 of its horizontally set around rotating cylinder 2 inner surface, it limit transport can flow through rotating cylinder 2 to the fibrous suspension in rotating cylinder 2 too quickly.
In the condensation means of rotating cylinder 2, the support 26 being similar to support 11 or lowering or hoisting gear 11 or lowering or hoisting gear 26 can also be set.Lowering or hoisting gear 26 can realize concentrating fibrous suspension effectively, because pending material can launch and make material come off from the wall of rotating cylinder 2 by this device, at this, water-fibre blend can be discharged from rotating cylinder 2 by opening 10 freely.In addition, lowering or hoisting gear 26 is utilized can also to realize the translocation from the input 3 of rotating cylinder 2 to the output 5 of rotating cylinder 2 or make it more effective.
Fibrous suspension continues from the Knock-Down Component 7 in the rotating cylinder 2 rotating cylinder pulper 1 the flushing parts 8 that flow in rotating cylinder 2, and wherein, fibrous material is washed out from the waste material residue remained in rotating cylinder 2 inner surface.Rinse parts 8 and such as can be configured to screen drum.In flushing parts 8, the sheath 9 of rotating cylinder 2 is provided with sorting mouth 13 or sorting gap 13, the fiber that size is determined by the size sorting mouth 13 or sorting gap 13 and water are as acceptable part, and namely certified products move to by sorting mouth 13 or sorting gap 13 the certified products pond (Akzeptbecken) 14 being arranged in and rinsing below parts 8.By such as nozzle 15, water is transported in fibrous suspension with the form of that continue or periodic current (Wasserstrahlen) 16 in flushing parts, isolated received fiber increase from the remainder of fibrous suspension in flushing parts 8 can be made.The composition of fibrous material and the composition (such as not by the sorting mouth 13 of rinse part part 8 or the various pollutants in sorting gap 13) of other materials arrived together with fibrous material are such as cleared out by the output 5 from rotating cylinder 2 as from the effluent in process after flushing parts 8.
The diameter of the in this case circular sorting mouth 13 of the flushing parts 8 in rotating cylinder pulper 1 can be such as 5-15mm, is preferably 6-12mm.The size of rinsing the sorting mouth in parts can equal the whole length of rinsing parts.This sorting mouth can also be set to, diminish gradually to output from the input of rotating cylinder.Such as, the diameter of sorting mouth when starting can be 8-12mm, then starts therefrom to be reduced to 7-11mm, and is further reduced to 6-10mm.The initiating terminal that pulp density is rinsing parts arriving the material rinsing parts from Knock-Down Component is higher; Based on this reason, preferably the start-up portion that diameter is rinsing parts of sorting mouth is larger.If in flushing parts, the pulp density of material declines from the start-up portion rinsing parts gradually to the end rinsing parts, then the diameter sorting mouth can reduce.The size of sorting mouth can be chosen as, it is made to keep open, it is namely avoided to get clogged, and received material residue, namely passing material (Akzeptmaterials) is now flowed accordingly by this sorting cause for gossip, and the material belonging to waste material is then avoided by the flowing of sorting mouth.The sorting mouth rinsing parts can arrange according to regular arrangement or figure or locate at random.Such as, the sorting mouth rinsing parts can be formed along the axis of rotating cylinder or circumferencial direction or the direction order along other.
The opening of condensation means and flushing parts can be made like this: the diameter of opening is not changed on the thickness direction of sheath.These openings can also be configured to the hole of two boring: on the inner surface of rotating cylinder, bore aperture, and bore macropore on the outer surface.If the larger-diameter hole that has of boring from outer surface is not penetrated, then the hole that the minimum diameter in hole is bored by the inner surface from rotating cylinder is determined.If streamwise enlarged openings in this way, can improve the permeability of opening, and compared to diameter not with the opening of the wall thickness change of rotating cylinder, the blocking tilting to cause can be avoided.
Hole or the opening of condensation means and flushing parts can radially or formed relative on the position of radial skew.Utilize the oblique of opening, such as can make opening more directed through the direction of motion of the material of lowering or hoisting gear whereabouts on the uplifted side of rotating cylinder, i.e. the direction of gravity, at this, compared to opening or the hole with radial direction, this can realize the permeability of rotating cylinder more effectively.
Replacement circle here sorts mouth or additionally, can also rinse the opening that arrange thin-and-long in parts, this can be formed between formed gap by machining or by line section bar.The width that the thin-and-long rinsed in parts sorts mouth or gap can be such as 2-10mm, is preferably 3-8mm.The size in gap is chosen as: large to avoiding blocking, the little pollutant to making to be included in waste material not by.The selection of the size in gap is corresponding to pending material.
Also support 27 or lowering or hoisting gear 27 is provided with in flushing parts 8 in the rotating cylinder 2 of rotating cylinder pulper 1.Lowering or hoisting gear 27 makes pending material rise and mix, and which thereby enhances the flowing of fibrous material to certified products.Flushing a fluid stream (Waschstrahlen) is effectively made again to aim at pending material equably from multiple directions thus.
Rinsing the received part arriving the fibrous suspension in certified products pond 14 in parts 8, i.e. the certified products of rotating cylinder pulper 1, such as, can be sent back in same pulper system the main pulper be arranged in before rotating cylinder pulper 1.Alternatively above-mentioned certified products can be transported in the identical reprocessing device of Papermaking fibers suspension, the certified products of main pulper are transported in this reprocessing device.The certified products of rotating cylinder pulper also can be transported to special treatment device (Sonderbehandlung) before it is transferred in same process together with the certified products of main pulper.
Rotating cylinder pulper 1 is as shown in Figure 1 different from previously known rotating cylinder pulper part and is, it has the condensation means 6 be arranged on before Knock-Down Component 7, and in order to improve the pulp density of fibrous suspension and separate in the fibrous suspension of water from the rotating cylinder 2 that will be transported to rotating cylinder pulper 1 in condensation means 6.Based on the condensation means 6 in rotating cylinder pulper 1 as shown in Figure 1, the secondary pulper of this rotating cylinder pulper 1 as main pulper can be used, namely as the pulper waste material carrying out autonomous pulper being carried out to reprocessing, in main pulper, fibrous material is when pulp density is very low, such as when pulp density is 3-6%, be broken down into fiber, at this, owing to there is condensation means 6 in rotating cylinder pulper 1, the pulp density arriving the fibrous suspension in the Knock-Down Component 7 of rotating cylinder pulper 1 still can be brought up in the scope to the favourable 8-18% of the Knock-Down Component 7 of rotating cylinder pulper 1.About 2-5% is reduced to by the pulp density spraying into the fibrous suspension that rotating cylinder pulper 1 can rinse in parts 8 by water in fibrous suspension.
Therefore some fibre material can be reclaimed in the condensation means of rotating cylinder pulper.But mainly occur in flushing parts by rotating cylinder pulper to the recovery of fibrous material, fibrous material is caused just to decompose fully with remaining scrap material in the Knock-Down Component of rotating cylinder pulper thus, in addition, fibrous material that is decomposed or release can be included in the fiber remnants or pars fibrosa of scattering, and these fiber remnants of scattering or pars fibrosa can be separated by the opening in the sorting face of the flushing parts in rotating cylinder pulper.
The diameter of the rotating cylinder 2 in rotating cylinder pulper 1 is preferably 2-6m.The diameter of rotating cylinder 2 is typically chosen in the length equaling whole rotating cylinder.The diameter of rotating cylinder also can be different according to the length of different parts, or even constantly change according to the length of rotating cylinder.The length of the condensation means in rotating cylinder 2 is preferably 1-15m, and the length of Knock-Down Component is preferably 3-25m, and the length of rinsing parts is preferably 2-20m.In rotating cylinder pulper 1, the total length of rotating cylinder 2 is preferably 10-60m.According to pending material, the length of the diameter of rotating cylinder and rotating cylinder parts is chosen as, make it possible to be separated, decompose fiber and can from the scrap material of the main pulper that will be transported to rotating cylinder pulper recycled fiber, and utilize the production capacity that rotating cylinder pulper can reach desired.The length of preferred condensation means is the 15-35% of rotating cylinder 2 length, and the length of Knock-Down Component is the 30-50% of rotating cylinder 2 length, and the length of rinsing parts is the 25-45% of rotating cylinder 2 length.
Diagrammatically illustrate the pulper system 17 arrived from the side in fig. 2.Pulper system as shown in Figure 2 there is main pulper 18 and connect with main pulper 18, for the treatment of the rotating cylinder pulper 1 of the waste material in main pulper.In main pulper 18, be mutually mixed to form fibrous suspension by making water and fibrous material.Water is transported in main pulper 18 and represents with arrow W, fibrous material is transported in main pulper 18 and represents with arrow FM.Fibrous material can such as whole bag ground or be transported in main pulper 1 with less raw material batch.Except water and fibrous material, also input various chemical substance to main pulper.
Therefore main pulper 18 as shown in Figure 2 can be so-called horizontal pulper or vertical pulper, it has rotary body that is unshowned, that also vertically arranged by motor driving in fig. 2, and this rotary body makes material movement pending in pulper by violent rotation.Fibrous material pending in pulper is broken down into fibrous suspension in pulper.Soaked by material and chemical substance effect, by rotary body cause tear, collision between fibrous material and the wall of pulper and the friction that produced by the relative motion of material realize the decomposition of fibrous material in pulper.When material to be decomposed is by recycled fibrous material, such as, when being made up of the old paper of old cardboard or mixing, the pulp density of fibrous suspension between 1-10%, but can be generally 3-6%.Discharging material or the paper pulp that also can be used in recovery in Paper or cardboard production replace recycled fibrous material as the fibrous material be transported in main pulper 18.
Pulper system 17 as shown in Figure 2 comprises main pulper 18, but this pulper system can also comprise multiple main pulper, different recycled fibrous material can be processed, the recycled writing paper of such as the following stated or Reclaimed board grade: OP=paper in the office in these main pulpers; OCC=corrugated board (corrugated cardboard); ONP=newsprint (paper for newspapers); OMG=magazine paper (periodical paper using); MW=mixed waste paper (the old paper of mixing), flexible package punch; Other fibrous material.The function of main pulper can carry out desirable optimization for involved raw material, wherein, and the rotating speed that rotary body and the rotary body be suitable for can be selected for this purpose and the pulp density adding man-hour, temperature and chemical substance.
When the rotary body of main pulper 18 rotates, strong turbulent flow can be produced in main pulper 18, wherein, heavier than fiber particle (such as larger fiber knot) and the various pollutants (such as grit and composite and metal derby) brought with recycled fibrous material are pulled to the edge of main pulper 18 as heavier material.Fibrous material declines downwards gradually at the mid portion of main pulper 18.Arrange sieve plate in the bottom of main pulper 18, the material being fully decomposed into fiber can through the opening of sieve plate.Can be circular at this this opening, its diameter typically be 5-20mm.Substitute the circular open or additionally at this, the opening of thin-and-long can also be constructed on sieve plate.Part through the hole in sieve plate is called as the qualified residue of main pulper 18, and is transported to further in the reprocessing process of fibrous suspension along the certified products passage 19 of main pulper 18.The reprocessing process of fibrous suspension such as can comprise hole sorting or rough segmentation picks, gap sorting following closely or segment the centrifuge tube (Rohrschleuder) for removing grit picking and be in or afterwards therebetween.After this process, can select to guide fibrous suspension to be entered in the short circulation (Kurzumlauf) of paper machine or board machine by ink removing device and/or settler, to use when manufacturing Paper or cardboard.By the waste conveyor (Rejektblock) 20 in main pulper 18 and the waste channel 21 that schematically shows with arrow 21, on main pulper 18 edge, the to comprise various pollutant composition of fibrous suspension can will be accumulated in or the waste material residue of main pulper 18 is transported in the rotating cylinder pulper 1 of the secondary pulper as pulper system 17 as shown in Figure 2.The fibrous material be included in the waste material residue of main pulper 18 is decomposed and is sorted further in rotating cylinder pulper 1, as shown in Figure 1.
In addition, be also provided with for the sake of clarity unshowned in the drawings salvage point (Ausschussauffangstelle) in the bottom of main pulper 18, composition the heaviest in fibrous suspension is fallen this place and is removed from this salvage point at any time.
Waste material in main pulper 18 is separated when rubbing or moves in the fringe region bottom the pond of main pulper, and this Action of Gravity Field by rotary body and centrifugal force realize, and centrifugal force is produced by the rotary motion of the material to be rubbed produced by rotary body.When waste material accumulates in the fringe region in pond, waste material is eliminated by the waste material exporter (Rejektausleitblock) in pulper.Waste material can be selected like this to derive the time, and the scrap material on bottom the pond making major part accumulate in main pulper is eliminated from the pond of main pulper, and is retained as the material of certified products as much as possible simultaneously.If utilize the recycled fibrous material of main pulper process to comprise little or considerably less waste material, can such as with the space brooming waste material of 5 minutes.If utilize the recycled fibrous material of main pulper process to comprise more scrap material, the time between the derivation of each waste material correspondingly can be shortened, such as 2 minutes.Can according to circumstances find out each waste material derive between desirable time interval time, and suitably adjust longer as requested, at this, this time interval can change between 0 to 15 minutes.For rotating cylinder pulper, the empty stage of the waste material of main pulper can be selected like this: main pulper and rotating cylinder pulper are integrally run ideally for the decomposition of fibrous material, recovery and production capacity.That is main pulper mainly runs continuously, and the waste material of main pulper then sporadically or is continuously eliminated.
In pulper system 17 as shown in Figure 2, main pulper 18 is placed higher than rotating cylinder pulper 1 in the vertical direction of pulper system 17, at this, the potential energy produced by involved difference in height is enough to the waste material of main pulper 18 is transported in rotating cylinder pulper 1.In the situation illustrated in figure 2, arrange the waste material valve 22 schematically shown in the waste channel 21 of main pulper 18, this valve keeps closing usually, and sporadically or termly opens, in order to be transported in rotating cylinder pulper 1 by the waste material of main pulper 18.For the sake of clarity, the device for opening and closing waste material valve known by professional is not shown in fig. 2.
In pulper system 17 as shown in Figure 2, rotating cylinder pulper 1 runs by this way: waste material valve 22 is opened provisionally, wherein, all carries the waste material in a certain amount of main pulper 18, in order to process in rotating cylinder pulper 1 at every turn.Rotating cylinder pulper can also such as work on continuity ground, thus such as can open waste material valve constantly, and waste material valve can continue open during this period, thus more pollutant is transported in rotating cylinder pulper.
Diagrammatically illustrate the second pulper system arrived from the side in figure 3.The miscellaneous part of pulper system 17 is as shown in Figure 3 corresponding with pulper system 17 as shown in Figure 2, only have main pulper 18 and rotating cylinder pulper 1 in the same plane in the vertical direction along this pulper system 7., utilize waste material pump 23 to be transported in rotating cylinder pulper 1 by the waste material in main pulper 18 here, waste material pump 23 is for being transported to the waste material of main pulper 18 in rotating cylinder pulper 1 provisionally or termly.For the sake of clarity, the device of the function for controlling waste material pump 23 is not shown in figure 3.
In pulper system 17 as shown in Figure 3, rotating cylinder pulper 1 works by this way: sporadically use waste material pump 23, wherein, all carry the waste material in the main pulper 18 of some, to process in rotating cylinder pulper at every turn.Rotating cylinder pulper can also such as work continuously, thus make waste material pump within the whole time all with lower rotating speed run, and the rotating speed that waste material pump can also be higher during this period run, with by more pollutant transportation in rotating cylinder pulper.
The rotating cylinder pulper 1 that pulper system as shown in Figures 2 and 3 comprises main pulper 18 and schematically shows in FIG, this rotating cylinder pulper 1 works as secondary pulper in pulper system 17.But according to the sorting ability of rotating cylinder pulper 1, also unique rotating cylinder pulper 1 can be used simultaneously as the secondary pulper of multiple main pulper 18, in these main pulpers 18, can have and to be one or morely positioned in identical plane in the vertical direction of pulper system 17, or higher than rotating cylinder pulper 1.Pulper system 17 as shown in Figure 2 or Figure 3 is very well applicable to larger or very large output.
To have in the pulper system of the secondary pulper of multiple series connection in early days (ability of these secondary pulpers relatively low and have rotary body, sieve plate and may drum filter following closely), relevant secondary pulper and rotating cylinder pulper can utilize the rotating cylinder pulper comprising condensation means as shown in Figure 1 to replace.Obviously can reduce the quantity of the single assembly of pulper system thus.The conventional secondary pulper of rotary body and sieve plate that is equipped with even can not be closed in practice, to receive the scrap material from multiple main pulper, and does not receive the material of the main pulper from process different material.By reducing number of devices, simplifying the allocation plan of workplace, and reducing the gross area in the space for plant maintenance.By reducing number of devices, also simplify for the instrument and meter of control appliance and automated system and the software that may need, at this, be that equipment itself or its are controlled and all decrease the time of required instrument and meter and automated system being carried out to installment and debugging concerning the optimization of whole pulper systemic-function.By reducing number of devices, the quantity of process pipe-line system can also be made to become less.In addition, when the decomposition of a part of fibrous material occurs in rotating cylinder pulper, the size in the pond of main pulper can also be made less compared to the size in former pond.
Effectively fibrous material can be separated from composite in rotating cylinder pulper, and remove composite, and without the need to reducing the block footpath of the composite skin in waste material.On the contrary, be equipped with the secondary pulper of traditional rotary body that composite is resolved into less fritter, thus some composite materials is converted into certified products, this is not wish.Carry out compared with process with utilizing other secondary pulper, the sharpest edges processing scrap material in rotating cylinder pulper are, in processing procedure, composite skin can not be resolved into too little small pieces, thus relatively large composite can be cleared out as the waste material in rotating cylinder pulper, and avoid composite to enter when papermaking in reprocessing process thus, this likely brings injury in reprocessing process.
Be in main pulper or the division of fibrous material or decomposition all can occur in rotating cylinder pulper and by fibrous material fragmentation or defibre (Defibrierbarkeit), formed thus from the fiber freely of fibrous material, fiber knot and less fibre material sheets, thus make material major part via pulper process as certified products through the opening on the floor lever of sieve tray in pulper.Such as 90-98% can be reached to the decomposition efficiency of the fibrous material accepted by pulper.Can by means of the washing occurred in a reservoir in reprocessing process to the decomposition of the remainder of fibrous material
realize with different mechanical reprocessing processes.The waste material back that the undecomposed fiber of part can also such as pick as rough segmentation is in main pulper.
Professional is noted that basic thought of the present invention can adopt all kinds and mode to implement in technical development.Therefore the present invention and embodiment thereof are not limited only to the above embodiments, but can change within the scope of the claims.
Claims (18)
1. a rotating cylinder pulper (1), it has the rotating cylinder (2) that can rotate, this rotating cylinder (2) comprising: Knock-Down Component (7), for decomposing the fibrous material be included in fibrous suspension be transported in described rotating cylinder pulper (1), rinse parts (8), for recycled fiber from the fibrous material be decomposed in described Knock-Down Component (7), it is characterized in that, the rotating cylinder (2) of described rotating cylinder pulper (1) has condensation means (6), for improving the pulp density of the fibrous suspension be transported in described rotating cylinder pulper (1), wherein, this condensation means (6) is arranged on the side, upstream of the Knock-Down Component (7) in the rotating cylinder (2) of described rotating cylinder pulper (1) in the rotating cylinder (2) of described rotating cylinder pulper (1) along the flow direction of fibrous suspension.
2. rotating cylinder pulper as claimed in claim 1, it is characterized in that, described condensation means (6) is set directly at along the flow direction of fibrous suspension before the Knock-Down Component (7) in the rotating cylinder (2) of this rotating cylinder pulper (1) in the rotating cylinder (2) of described rotating cylinder pulper (1).
3. rotating cylinder pulper as claimed in claim 1 or 2, it is characterized in that, in the condensation means (6) of this rotating cylinder pulper (1), there is multiple opening (10) at the sheath (9) of the rotating cylinder (2) of described rotating cylinder pulper (1), the water in the fibrous suspension be transported in the rotating cylinder (2) of this rotating cylinder pulper (1) is got rid of, to improve the pulp density of fibrous suspension by these openings.
4. rotating cylinder pulper as claimed in claim 3, it is characterized in that, described opening (10) is circular at this, and its diameter is 5-25mm.
5. rotating cylinder pulper as claimed in claim 1, it is characterized in that, the length of the condensation means (6) in the rotating cylinder (2) of described rotating cylinder pulper (1) is the 15-35% of this rotating cylinder (2) total length.
6. rotating cylinder pulper as claimed in claim 1, it is characterized in that, the rotating cylinder (2) of described rotating cylinder pulper (1) has lowering or hoisting gear (26) in described condensation means (6), for effectively concentrating and/or conveying fiber suspension.
7. a pulper system (17), it has at least one main pulper (18) and at least one secondary pulper for the treatment of the waste material in this at least one main pulper (18), it is characterized in that, described secondary pulper is rotating cylinder pulper (1), it has the rotating cylinder (2) that can rotate, this rotating cylinder (2) comprising: Knock-Down Component (7), for decomposing the fibrous material be included in fibrous suspension be transported in described rotating cylinder pulper (1); Rinse parts (8), for recycled fiber from the fibrous material be decomposed in described Knock-Down Component (7); With condensation means (6), for improving the pulp density of the fibrous suspension be transported in described rotating cylinder pulper (1), wherein, described condensation means (6) is arranged on the side, upstream of the Knock-Down Component (7) in the rotating cylinder (2) of this rotating cylinder pulper (1) in the rotating cylinder (2) of described rotating cylinder pulper (1) along the flow direction of fibrous suspension.
8. pulper system as claimed in claim 7, it is characterized in that, described condensation means (6) is set directly at along the flow direction of fibrous suspension before the Knock-Down Component (7) in the rotating cylinder (2) of described rotating cylinder pulper (1) in the rotating cylinder (2) of described rotating cylinder pulper (1).
9. pulper system as claimed in claim 7 or 8, it is characterized in that, described main pulper (18) is set in this pulper system (17), higher than described rotating cylinder pulper (1) in the vertical direction of this system, wherein, the waste material in described main pulper (18) moves to described rotating cylinder pulper (1) from described main pulper (18) by the potential energy produced by this difference in height.
10. pulper system as claimed in claim 9, it is characterized in that, in the described main pulper of the connection (18) of described main pulper (18) and the waste channel (21) of described rotating cylinder pulper (1), waste material valve (22) is set, this valve is opened temporarily, to be transported to described rotating cylinder pulper (1) from described main pulper (18) by waste material.
11. pulper systems as claimed in claim 7 or 8, it is characterized in that, described main pulper (18) and described rotating cylinder pulper (1) are substantially arranged on identical height in this pulper system (17) in the vertical direction of this system, wherein, waste material in described main pulper (18) moves to described rotating cylinder pulper (1) by waste material pump (23) from described main pulper (18), and this waste material pump is arranged in the waste channel (21) connecting described main pulper (18) and described rotating cylinder pulper (1).
12. pulper systems as claimed in claim 11, it is characterized in that, the described waste material pump (23) in the described main pulper of the connection (18) of described main pulper (18) and the waste channel (21) of described rotating cylinder pulper (1) is for being transported to waste material described rotating cylinder pulper (1) from described main pulper (18) temporarily.
13. 1 kinds for decomposing the method for fibrous material, wherein, in the method the fibrous suspension comprising fibrous material is transported in rotating cylinder pulper (1), be included in fibrous material in the fibrous suspension Knock-Down Component (7) in described rotating cylinder pulper (1) and be decomposed, be rinsed in the flushing parts (8) of the fibrous suspension comprising decomposed fibrous material in described rotating cylinder pulper (1), so that fiber is separated from fibrous suspension, it is characterized in that, the pulp density of fibrous suspension was improved before the fibrous material be included in fibrous suspension is decomposed, wherein, in condensation means (6) in the rotating cylinder (2) of described rotating cylinder pulper (1), water is got rid of from fibrous suspension, wherein, this condensation means is arranged on the side, upstream of the Knock-Down Component (7) in the rotating cylinder (2) of described rotating cylinder pulper (1) in the rotating cylinder (2) of described rotating cylinder pulper (1) along the flow direction of fibrous suspension.
14. methods as claimed in claim 13, it is characterized in that, by water being got rid of from fibrous suspension the pulp density improving fibrous suspension in the condensation means (6) of the rotating cylinder (2) of described rotating cylinder pulper (1), at this, this condensation means is set directly at along the flow direction of fibrous suspension before the Knock-Down Component (7) in the rotating cylinder (2) of described rotating cylinder pulper (1) in the rotating cylinder (2) of described rotating cylinder pulper (1).
15. methods as described in claim 13 or 14, it is characterized in that, fibrous suspension is transported to described rotating cylinder pulper (1) from the described main pulper (18) arranged higher than described rotating cylinder pulper (1), wherein, fibrous suspension moves to described rotating cylinder pulper (1) from described main pulper (18) by means of the potential energy produced by difference in height.
16. methods as claimed in claim 15, it is characterized in that, be transported in described rotating cylinder pulper (1) by opening waste material valve (22) temporarily by fibrous suspension, this waste material valve (22) is arranged in the described main pulper of the connection (18) of described main pulper (18) and the waste channel (21) of described rotating cylinder pulper (1).
17. methods as described in claim 13 or 14, it is characterized in that, utilizing waste material pump (23) fibrous suspension to be basically in mutually level described main pulper (18) with described rotating cylinder pulper (1) is transported in described rotating cylinder pulper (1), and this waste material pump is arranged in the waste channel (21) of the described main pulper (18) described main pulper (18) and described rotating cylinder pulper (1) are connected to each other.
18. methods as claimed in claim 17, is characterized in that, use described waste material pump (23) to be sporadically transported to described rotating cylinder pulper (1) from described main pulper (18) by fibrous suspension.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20115379A FI123000B (en) | 2011-04-19 | 2011-04-19 | Drum pulper, pulper system and method for disintegrating fibrous material |
| FI20115379 | 2011-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102747631A CN102747631A (en) | 2012-10-24 |
| CN102747631B true CN102747631B (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210120490.XA Expired - Fee Related CN102747631B (en) | 2011-04-19 | 2012-04-19 | Repulping apparatus used for decomposing fiber material and method thereof |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN102747631B (en) |
| AT (1) | AT511367B1 (en) |
| DE (1) | DE102012205721A1 (en) |
| FI (1) | FI123000B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT512395B1 (en) * | 2012-04-24 | 2013-08-15 | Andritz Ag Maschf | Process for the dissolution of fibrous materials |
| CN103510415B (en) * | 2012-06-20 | 2018-02-16 | 安德里特斯公开股份有限公司 | Method for decomposing fibrous material |
| EP2873769B1 (en) * | 2013-11-15 | 2018-12-05 | Valmet Technologies, Inc. | Drum pulper |
| FI20136122L (en) * | 2013-11-15 | 2015-05-16 | Valmet Technologies Inc | A drum for processing fiber material |
| RU2700203C2 (en) * | 2014-10-06 | 2019-09-13 | ДЖУНО ЭлЭлСи | Integrated method and system for processing waste |
| DE102018003522A1 (en) * | 2017-11-22 | 2019-05-23 | Hans-Joachim Boltersdorf | Process for the wet treatment of material, sieve drum, kneader and arrangement of several cyclones |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0529548B1 (en) * | 1991-08-30 | 1996-07-17 | Aikawa Iron Works Co., Ltd. | Screen apparatus for paper making |
| DE19736143C2 (en) * | 1997-08-20 | 2003-02-27 | Voith Paper Fiber Systems Gmbh | Method and device for dissolving fibrous material |
| JP2004211276A (en) * | 2002-11-15 | 2004-07-29 | Aikawa Iron Works Co Ltd | Disaggregation apparatus for papermaking raw material and method for disaggregation papermaking raw material |
| JP3824085B2 (en) * | 2003-03-27 | 2006-09-20 | 理三郎 ▲高▼橋 | Center valveless suction filter |
| DE102006016174A1 (en) * | 2006-04-06 | 2007-10-11 | Voith Patent Gmbh | Process to recover fiber from waste paper by compression treatment between grinding surfaces driving a rolling action |
| CN101215793A (en) * | 2007-12-30 | 2008-07-09 | 李风宁 | Roller screening pulp kneader |
-
2011
- 2011-04-19 FI FI20115379A patent/FI123000B/en not_active IP Right Cessation
-
2012
- 2012-04-05 DE DE201210205721 patent/DE102012205721A1/en not_active Withdrawn
- 2012-04-11 AT ATA429/2012A patent/AT511367B1/en not_active IP Right Cessation
- 2012-04-19 CN CN201210120490.XA patent/CN102747631B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AT511367A2 (en) | 2012-11-15 |
| CN102747631A (en) | 2012-10-24 |
| AT511367B1 (en) | 2015-01-15 |
| DE102012205721A1 (en) | 2012-10-25 |
| FI123000B (en) | 2012-09-28 |
| AT511367A3 (en) | 2014-09-15 |
| FI20115379A0 (en) | 2011-04-19 |
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