Drying press assembly for paper or carton making process has steam-heated press belts and baffle drier

In a papermaking process a wet paper web advances sandwiched between two endless belts (10, 11) supported by rollers and forming a nip (N). One or both of the belts are simultaneously washed and steam heated and transfer heat to the paper web, which is dried by a baffle drier (20) immediately after leaving the nip. Further heat is transported into the baffle drying zone by the heated belts. The press section is located under a heat-insulated hood that prevents escape of heat between the press and the baffle drier. The belts are conditioned by a steam-heated drum (12.2) and a suction box (12.3). Also claimed is a commensurate paper or carton drying assembly.Patent family as of 4.1.2024AT503977 A220080215AT2007000105220070709AT503977 A320100715AT2007000105220070709DE102007031366 A120080131DE20071003136620070705FI120002 B20090529FI2006000549820060724FI20065498 A20080125FI2006000549820060724FI20065498 A020060724FI2006000549820060724</p

Method and Apparatus for Producing a High Bulk Web

According to an example aspect of the present invention, there is provided an apparatus for producing high bulk fibrous web, comprising:a web forming unit (1) for producing a fibrous web,a turningroll (7) and a permeable fabric (2) for transferring the web from the web forming unit (1) supported by the permeable fabric to a turning roll (7) that provides turning of the web to a horizontal direction so that the web is placed between the permeable fabric (1) and the turning roll (7). A suction box (8) providing a partial vacuum is arranged on the opposite side of the web and the fabric in relation to the turning roll for controlling the distance between the fabric (2) and the turning roll (7) and the pressure on the web travelling between the fabric (2) and the turning roll (7).Patent family as of 3.1.2024Publication number Publication date Application number Application date  FI20185538 A 20191214 FI20180005538 20180613 WO19239012 A1 20191219 WO2019FI50455 20190613</p

Dewatering device for fiber web machine, comprises metal band and counter roller, around which metal band is arranged to run, such that dewatering gap is formed between metal band and counter roller

The dewatering device comprises a metal band (13) and a counter roller (15), around which the metal band is arranged to run, such that a dewatering gap (N-o) is formed between the metal band and the counter roller. The metal band is arranged around the counter roller to run such that the wrap angle (alpha) is 90 degree to 210 degree and a web (W) is aligned behind the dewatering gap to detach from the forming fabric (11) and to continue along the metal band.Patent family as of 3.1.2024DE102012202535 A1 20120823 DE201210202535 20120220FI20115178 A 20120824 FI20110005178 20110223FI20115178 A0 20110223 FI20110005178 20110223FI20115178 L 20120824 FI20110005178 20110223</p

Uusi tuottopotentiaalin laskentamenetelmä sovellettuna radan valmistukseen

The classical competitive firm is continuously searching for new ways to maximise profit. For this purpose there exist several methods to identify sources of losses and to calculate profitability or productivity of a production unit. However, the existing methods do not provide adequate information of how to calculate the profit potential related to changes in technology and process parameters. This research question is crucial in order to be able to target the development and investment efforts effectively. Therefore, there is a need to carry out this research work. As a conclusion of the research, a novel profit potential calculation method is developed in this dissertation. This study applies a constructive research approach to develop a novel profit potential calculation method suitable for web manufacturing processes. The theoretical framework is the profit function, which is further developed to form the web profit model. The profit model is optimised with respect to technology and process related input parameters to form the profit potentials. Then, new concepts: profit potentials at different optimisation levels of increasing complexity are presented. Sensitivity and uncertainty calculations are included in the method and the method is applied to two web process case examples. Method application is presented as a continuous process and the principles of the method application to other products or processes are presented. The findings show that the created profit potential method can be applied to web process profit potential analysis. Based on the profit potentials found it can be claimed that this novel method combined with new technology assessment, brings out significant potential to improve the profitability of the web processes. The accuracy and scope of the calculation can be further improved by model development. To ensure continuous profit growth, the novel method application can be implemented as a continuous process. In addition, this novel method can be applied to different types of products and processes and also optimal resource planning by introducing new parameters and models.Klassinen kilpailukykyinen yritys etsii jatkuvasti uusia tapoja tuoton maksimoimiseksi. Tähän tarkoitukseen on useita menetelmiä, joilla voidaan tunnistaa tappioden lähteitä sekä joilla voidaan laskea tuotantoyksikön kannattavuutta ja tuottavuutta. Olemassa olevat menetelmät eivät kuitenkaan tarjoa riittävää tietoa siitä kuinka voidaan laskea teknologian ja prosessiparametrien muutoksiin liittyvä tuottopotentiaali. Tämä tutkimuskysymys on ratkaiseva, jotta kehitys- ja investointipanostukset voidaan kohdistaa tehokkaasti. Tämän tutkimuskysymyksen selvittämiseen tarvitaan tutkimustyötä. Tutkimustyön seurauksena tässä työssä kehitetään uusi tuottopotentiaalin laskentamenetelmä. Tämä tutkimus soveltaa konstruktiivista tutkimustapaa uuden radanvalmistusprosesseille soveltuvan tuottopotentiaalin laskentamenetelmän kehittämiseen. Teoreettinen viitekehys on tuottofunktio, jota kehitetään edelleen ja muodostetaan radantuottomalli. Radantuottomalli optimoidaan teknologiaan ja prosessiin liittyvien parametrien suhteen ja muodostetaan tuottopotentiaalit. Uudet käsitteet, tuottopotentiaalit eri kasvavan kompleksisuuden optimointitasoilla, esitetään. Herkkyyden ja epävarmuuden laskenta lisätään menetelmään ja menetelmän soveltaminen esitetään kahden esimerkkitapauksen avulla. Tämän jälkeen kuvataan kuinka menetelmää voidaan soveltaa jatkuvana prosessina ja lisäksi esitetään periaatteet menetelmän soveltamiseksi erilaisille tuotteille ja prosesseille. Tulokset osoittavat, että aikaansaatua tuottopotentiaalin laskentakehystä voidaan soveltaa radanvalmistuksen tuottopotentiaalianalyyseihin. Määritettyjen tuottopotentiaalien perusteella voidaan väittää, että uusi menetelmä sovellettuna uuden teknologian arviointiin tuo esiin merkittävää potentiaalia radanvalmistusprosessien kannattavuuden parantamiseksi. Menetelmän tarkkuutta ja laajuutta voidaan edelleen parantaa malleja kehittämällä. Jatkuvan tuottojen kasvattamisen varmistamiseksi menetelmää voidaan käyttää jatkuvana prosessina. Lisäksi uutta menetelmää voidaan soveltaa erityyppisille tuotteille ja prosesseille sekä optimaalisen resurssien käytön määrittämiseen soveltamalla uusia parametreja ja malleja.

Coating for lowering friction effect and improving wear resistance of a component in a fibre web machine and process of producing the same

The present invention relates to a coating of low friction and improved wear resistance and the method of producing the same. A base material is provided with a titanium layer and a pure carbon (ta-C) layer is coated on top of it. Said coating also exhibits high hardness and bending stress resistance. Preferably, said coating is applied to components of paper making machines and show superior performance in cooperation with fibre web.</p

Press section of a web forming machine

The invention relates to a press section of a web forming machine comprising a pressing nip (1) formed by a first roll (3) and a second roll (5), an endless heat-conductive metal belt (9) and an endless first fluid-permeable fabric (11), both arranged to pass through the pressing nip (1), the metal belt (9) and the first fluid-permeable fabric (11) being adapted to sandwich a web (13) in the pressing nip (1), a metal belt heating means (15) adapted to heat the metal belt (9), and a dewatering nip (17) formed by the first roll (3) and a third roll (7) upstream of the pressing nip (1).Patent family as of 4.1.2024DE112008003815 T5 20110324 DE200811003815T 20080421WO09129842 A1 20091029 WO2008EP54821 20080421</p

A method and a mill system in connection with coating and filling a web

The present patent application relates to a web coating process, a coated web obtainable by the web coating process, a web coating device as well as a web mill system comprising said web coating device, wherein precipitated calcium carbonate is manufactured during the web coating process or in the web coating device.Patent family as of 4.1.2024DE112007003516 T5 20100429 DE200711003516T 20070621WO08154961 A1 20081224 WO2007EP56212 20070621</p