EP3475631A1 - Aufbereitung von stärke für eine hydrophobierung von papier - Google Patents
Aufbereitung von stärke für eine hydrophobierung von papierInfo
- Publication number
- EP3475631A1 EP3475631A1 EP17746414.6A EP17746414A EP3475631A1 EP 3475631 A1 EP3475631 A1 EP 3475631A1 EP 17746414 A EP17746414 A EP 17746414A EP 3475631 A1 EP3475631 A1 EP 3475631A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- starch
- paper
- thermal energy
- stream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/54—Starch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
Definitions
- the invention relates to an apparatus and a process for processing starch for hydrophobing paper.
- paper also includes cardboard or cardboard.
- waterproofing paper which is also called sizing paper is mainly for packaging papers and graphic papers strength of different origin, mainly wheat starch, for example, but also used potato starch ⁇ ke, which is modified for this use.
- the starch is supplied to the Pa ⁇ piercer example in tanker trucks and activated locally, being heated to a process temperature. This is often done by means of live steam, which is provided by steam generation.
- the invention has for its object to provide an improved apparatus and an improved method for the treatment of starch for a hydrophobization of paper.
- the object is achieved according to the invention with respect to the device by the features of claim 1 and in terms of Ver ⁇ driving by the features of claim 10.
- a device for processing starch for hydrophobing paper comprises a heat pump, which absorbs thermal energy from a waste heat stream of the Pandaher- position of the paper and emits to heat the starch to a process temperature.
- the device enables to use in papermaking waste heat to the treatment of starch for hydrophobins ⁇ b ist of the paper produced. This advantageously reduces the energy consumption and the production costs of paper production.
- the device for this purpose comprises a heat pump, which receives thermal energy from a waste heat stream of the papermaking of the paper and releases it to a process temperature for heating the starch. This eliminates the conventional particular Ericar ⁇ mung the starch by steam, which must be provided by a steam production and causes increased energy consumption ⁇ .
- the heat pump is a compression heat pump comprising a gezzie ⁇ NEN heat carrier circuit for a heat transfer medium, an evaporator for receiving thermal energy of the waste heat stream by evaporating the heat transfer medium, an electrically driven compressor for compressing the evaporated heat transfer fluid and a condenser for Dissipating thermal energy by condensing the vaporized heat carrier has.
- the Ver ⁇ application of an electrically driven compression heat pump enables, in particular independent of fossil fuels treatment of the starch.
- a further embodiment of the invention provides that the heat pump has a recuperator for cooling the condensed heat carrier and heating the vaporized heat carrier on ⁇ .
- the coefficient of performance of the heat pump can be increased by a recuperator by about 15%.
- the heat transfer medium is the refrigerant R-1233zd or the refrigerant R-1336mzz.
- R-1233zd refers to trans-1-chloro-3,3,3-trifluoropropene (CAS number 102687-65-0).
- R-1336mzz refers to cis-1, 1, 1, 4, 4, 4-hexafluoro-2-butene (CAS number 692-49-9).
- the ⁇ se heat transfer can condense advantageous at high temperatures and at the same time under moderate pressures. In addition, these heat carriers are not flammable, non-toxic and therefore particularly ecologically advantageous.
- Another embodiment of the invention provides a preheater for preheating the starch to a preheat temperature prior to heating the starch to the process temperature.
- the preheater transmits thermal energy from the waste heat stream cooled by the heat pump to the starch. By such a preheater thermal energy of the waste heat ⁇ stream can be used more efficiently.
- a further embodiment of the invention provides that the process temperature is about 125 ° C. A warming of
- the waste heat stream is an exhaust air stream of a dryer section of a paper machine or a contaminated vapor stream or a liquid condensate stream.
- a further embodiment of the invention provides a heat exchanger for the direct delivery of thermal energy through the heat pump to the starch.
- An alternative embodiment of the invention provides a heat transfer link for forwarding heat energy from the heat pump to the starch.
- a direct release of thermal Energy through the heat pump to the strength allows against ⁇ over a delivery by a heat transfer intermediate circuit, a higher coefficient of performance of the heat pump and thus a more effi ⁇ cient use of the waste heat stream.
- indirect delivery of thermal energy by the heat pump via a heat transfer intermediate circuit makes or facilitates the retrofitting of existing paper machines by a heat pump for hydrophobicizing paper.
- thermal energy is taken from a waste stream of Pa ⁇ pierher ein of the paper and is discharged to a process temperature for the heating of the starch by a heat pump.
- the advantages of the method correspond to the above-mentioned advantages of a device according to the invention for the preparation of starch for a hydrophobization of paper.
- a paper machine according to the invention has a erfindungsge ⁇ Permitted apparatus for reclaiming strength for a water-repellent paper.
- the advantages of such a paper machine result from the abovementioned advantages of a device according to the invention for processing starch for hydrophobing paper.
- FIG. 1 shows schematically a paper machine with a first exemplary embodiment of a device for processing starch for a hydrophobization of paper
- FIG. 2 shows an enthalpy pressure diagram of a heat carrier
- 3 shows a second embodiment of a device for processing starch for a hydrophobization of paper
- FIG. 4 shows a third embodiment of a device for
- Figure 1 schematically shows a paper machine 100 to a first embodiment of an apparatus 1 for processing of starch Aufberei ⁇ 3 for a water-repellent paper.
- the device 1 comprises a heat pump 5 and a heat exchanger 7.
- the heat pump 5 takes thermal energy from a waste heat stream 9 ⁇ papermaking of the paper and releases it in the heat exchanger 7 on the strength from 3.
- the waste heat stream 9 is, for example, an exhaust air stream of a drying section 102 of the paper machine 100.
- the waste heat stream 9 may also be a contaminated vapor stream which arises during papermaking or a liquid condensate stream which arises during papermaking of the paper.
- Waste heat stream 9 is cooled by the heat pump 5, for example, from about 100 ° C to about 80 ° C.
- the thickness 3 is heated in the heat exchanger 7, for example, from about 20 ° C to a Pro ⁇ zesstemperatur the hydrophobization of about 125 ° C.
- the heat pump 5 is an out than compression heat pump ⁇ led high-temperature heat pump.
- the heat pump 5 comprises egg ⁇ NEN closed heat carrier circuit 11, an evaporator 13, an electrically driven compressor 15, a condenser 17, an expansion unit 19, and a gate Rekupera ⁇ 21st
- a heat transfer medium circulates.
- the heat transfer medium is for example a halogenated hydrocarbon. More preferably, the heat carrier the Käl ⁇ tesch R-1233zd or refrigerant R-1336mzz is.
- the compressor 15 compresses the heat transfer medium, thereby causing the circulation of the heat carrier in the heat transfer circuit 11.
- the Kon ⁇ capacitor 17 of the heat transfer medium is condensed with release of con- heat of condensation.
- the condenser 17 is integrated in the heat exchanger 7, so that the condensation heat is released directly to the thickness 3 and the thickness 3 is heated to the process ⁇ temperature.
- the expansion unit 19 relaxes the heat transfer medium to a reduced pressure p.
- the recuperator 21 cools the condensed heat carrier and heats the vaporized heat transfer medium.
- FIG. 2 shows by way of example an enthalpy-pressure diagram of a heat carrier 3 of the heat pump 5 of the device 1 shown in FIG. 1, the heat carrier in this example being R1233zd.
- the abscissa of the enthalpy pressure diagram plots a specific enthalpy h in kJ / kg. On the Ordina ⁇ te the pressure p is plotted in bar logarithmic.
- the diagram shows a family of curves of isotherms 27, wherein a temperature of the heat carrier is indicated above the respective isotherm 27 in degrees Celsius. Points on the Isother ⁇ men 27 at which the slope of a isotherm 27 changes abruptly corresponding phase boundaries of the heat carrier.
- the ⁇ se points are connected by a phase boundary curve 29th Isentropene 31 is also shown.
- the number at an isentropic 31 indicates the specific entropy of the heat carrier on this isentrope 31 in kJ / (kg-K).
- Figure 2 further shows a thermodynamic cycle of the heat carrier in the heat carrier circuit 11 with process punk ⁇ th 33 to 36.
- Between the process points 33 and 34 is carried out a polytropic compression of the heat carrier through the Kom ⁇ pressor 15.
- Between the process points 34 and 35 is carried egg ne isobaric cooling and liquefaction of the heat carrier through the condenser 17 and the recuperator 21.
- Between the process points 35 and 36 a relaxation of the bathträ ⁇ gers by the expansion unit 19 takes place between the process points 36 and 33 isobaric evaporation and Ermér ⁇ tion the heat transfer medium through the evaporator 13 and the Rekupe ⁇ rator 21st
- FIG. 3 shows a second embodiment of a Vorrich ⁇ device 1 for the treatment of starch 3 for a hydrophobization of paper. This embodiment differs from the embodiment shown in Figure 1 only in that the capacitor 17 of the heat pump 5 is not integrated into the heat exchanger 7, but is ge ⁇ coupled via a heat transfer intermediate circuit 23 to the heat exchanger 7.
- heat of condensation emitted by the heat carrier is not released directly to the starch 3, but is transported by the heat transfer intermediate circuit 23 to the heat exchanger 7 and delivered to the heat carrier.
- the heat transfer intermediate circuit 23 contains a transmission medium, for example What ⁇ ser, for transporting thermal energy from the condenser 17 to the heat exchanger 7.
- FIG 4 shows a third embodiment of a Vorrich ⁇ device 1 for the treatment of starch 3 for a hydrophobization of paper.
- This embodiment is different from the embodiment shown in Figure 1 only by an additional preheater 25 for preheating the thickness 3 to a preheating temperature before heating the thickness 3 to the process temperature in the heat exchanger 7.
- the preheater 25 transfers thermal energy from the cooled by the evaporator 13 Abebenstrom 9
- the thickness 3 in the preheater 25 is heated from about 20 ° C to about 75 ° C.
- thermal energy of the waste heat stream 9 can be used more efficiently and the residence time of the starch 3 in the heat exchanger 7 for heating the starch 3 to the process temperature can be shortened.
- the embodiment shown in Figure 3 can be extended by a preheater 25.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16188670.0A EP3296666A1 (de) | 2016-09-14 | 2016-09-14 | Aufbereitung von stärke für eine hydrophobierung von papier |
| PCT/EP2017/068003 WO2018050317A1 (de) | 2016-09-14 | 2017-07-17 | Aufbereitung von stärke für eine hydrophobierung von papier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3475631A1 true EP3475631A1 (de) | 2019-05-01 |
| EP3475631B1 EP3475631B1 (de) | 2020-08-26 |
Family
ID=57130147
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16188670.0A Withdrawn EP3296666A1 (de) | 2016-09-14 | 2016-09-14 | Aufbereitung von stärke für eine hydrophobierung von papier |
| EP17746414.6A Active EP3475631B1 (de) | 2016-09-14 | 2017-07-17 | Papiermaschine mit einer vorrichtung zur aufbereitung von stärke und verfahren zur aufbereitung von stärke für eine hydrophobierung von papier in einer papiermaschine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16188670.0A Withdrawn EP3296666A1 (de) | 2016-09-14 | 2016-09-14 | Aufbereitung von stärke für eine hydrophobierung von papier |
Country Status (5)
| Country | Link |
|---|---|
| EP (2) | EP3296666A1 (de) |
| CN (2) | CN117346382A (de) |
| BR (1) | BR112019004432B1 (de) |
| ES (1) | ES2834075T3 (de) |
| WO (1) | WO2018050317A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4327790A1 (de) | 2022-08-25 | 2024-02-28 | Corman SpA | Biologisch abbaubares saugfähiges produkt |
| EP4523668A1 (de) | 2023-09-14 | 2025-03-19 | Corman SpA | Adaptives absorbierendes hygieneprodukt |
| EP4620337A1 (de) | 2024-03-20 | 2025-09-24 | Corman SpA | Postnataler absorbierender hygieneschlicker |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3721575A (en) * | 1971-01-05 | 1973-03-20 | Nat Starch Chem Corp | Continuous process for the preparation of modified starch dispersions |
| DE3612907A1 (de) * | 1986-04-17 | 1987-11-12 | Thermo Consulting Heidelberg | Anlage zur rueckgewinnung von in der abluft der trockner von papiermaschinen enthaltener abwaerme |
| US5061345A (en) * | 1991-02-21 | 1991-10-29 | Green Bay Packaging Inc. | Method of making a multiple ply paper product containing an outer ply of reclaimed white office waste |
| SE524281C2 (sv) * | 2001-09-06 | 2004-07-20 | Stora Enso Ab | Ytbehandlingskomposition, innefattande stärkelsepartiklar, metod vid framställning av papper eller kartong, papper eller kartong samt användning av en ytbehandlingskomposition |
| FR2898897B1 (fr) * | 2006-03-21 | 2012-06-15 | Roquette Freres | Nouveaux procede et dispositif de cuisson d'une matiere amylacee a hautes matieres seches pour la preparation d'une composition adhesive |
| AT506077B1 (de) * | 2008-01-29 | 2009-06-15 | Andritz Ag Maschf | Abwärmenutzung in der trockenpartie von papiermaschinen |
| US20120000236A1 (en) * | 2009-04-13 | 2012-01-05 | Panasonic Corporation | Heat pump heating system |
| CN101818454B (zh) * | 2010-02-09 | 2011-11-16 | 广西大学 | 氟碳接枝淀粉防水防油剂及其制备方法 |
| CN102154919A (zh) * | 2010-12-03 | 2011-08-17 | 江门市高力依科技实业有限公司 | 一种造纸制备方法 |
| EP3158130B1 (de) * | 2014-07-29 | 2018-03-28 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zur trocknung eines trocknungsguts und industrielle anlage |
| CN104456610B (zh) * | 2014-12-02 | 2017-10-17 | 新疆工程学院 | 一种蒸汽喷射式热泵循环的烟气余热回收系统 |
| CN204987434U (zh) * | 2015-06-19 | 2016-01-20 | 浙江益纸淀粉有限公司 | 用于造纸淀粉生产的加热水箱 |
| CN105627727A (zh) * | 2015-12-24 | 2016-06-01 | 衡山县逢缘草艺开发有限责任公司 | 一种烘干系统 |
-
2016
- 2016-09-14 EP EP16188670.0A patent/EP3296666A1/de not_active Withdrawn
-
2017
- 2017-07-17 EP EP17746414.6A patent/EP3475631B1/de active Active
- 2017-07-17 CN CN202311283158.XA patent/CN117346382A/zh active Pending
- 2017-07-17 CN CN201780049658.3A patent/CN109642758A/zh active Pending
- 2017-07-17 WO PCT/EP2017/068003 patent/WO2018050317A1/de not_active Ceased
- 2017-07-17 BR BR112019004432-9A patent/BR112019004432B1/pt active IP Right Grant
- 2017-07-17 ES ES17746414T patent/ES2834075T3/es active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018050317A1 (de) | 2018-03-22 |
| EP3475631B1 (de) | 2020-08-26 |
| ES2834075T3 (es) | 2021-06-16 |
| BR112019004432A2 (pt) | 2019-05-28 |
| CN117346382A (zh) | 2024-01-05 |
| EP3296666A1 (de) | 2018-03-21 |
| BR112019004432B1 (pt) | 2021-10-19 |
| CN109642758A (zh) | 2019-04-16 |
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