EP 3987099 A1 20220427 - DRY FORMING PLANT AND METHOD FOR DRY FORMING A FIBROUS TISSUE USING SUCH DRY FORMING PLANT
Title (en)
DRY FORMING PLANT AND METHOD FOR DRY FORMING A FIBROUS TISSUE USING SUCH DRY FORMING PLANT
Title (de)
TROCKENFORMANLAGE UND VERFAHREN ZUR TROCKENFORMUNG EINES FASERGEWEBES MIT EINER SOLCHEN TROCKENFORMANLAGE
Title (fr)
INSTALLATION DE FORMATION À SEC ET PROCÉDÉ DE FORMATION À SEC D'UN TISSU FIBREUX EN UTILISANT UNE TELLE INSTALLATION DE FORMATION À SEC
Publication
Application
Priority
- DK PA201970387 A 20190620
- DK 2020050175 W 20200618
Abstract (en)
[origin: WO2020253927A1] A dry forming plant is described which comprises at least one distribution unit having a fibre and air inlet. Such distribution unit is placed above a forming wire opposite to at least one vacuum box which is connected to a suction unit. The distribution unit has an open bottom for release of the fibre material onto the forming wire below the dis- tribution unit. More rotating rollers having protruding spikes are provided in the dis- tribution unit for covering the cross sectional area of the open bottom. The vacuum box is divided into at least three longitudinal zones in a direction trans- versal to the advance direction of the forming wire. Said longitudinal zones have up- wardly orientated intakes arranged below the forming wire. The longitudinal zones are connected with the suction unit via an outlet. The outlet comprises first shut-off means for partly or totally closing the outlet. The first shut-off means are independently op- erable.
IPC 8 full level
D04H 1/72 (2012.01); D01G 25/00 (2006.01); D04H 1/732 (2012.01); D04H 1/736 (2012.01)
CPC (source: EP US)
D01G 25/00 (2013.01 - EP); D04H 1/72 (2013.01 - EP); D04H 1/732 (2013.01 - EP US); D04H 1/736 (2013.01 - EP US)
Citation (search report)
See references of WO 2020253927A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020253927 A1 20201224; CA 3144286 A1 20201224; EP 3987099 A1 20220427; US 2022267937 A1 20220825
DOCDB simple family (application)
DK 2020050175 W 20200618; CA 3144286 A 20200618; EP 20740528 A 20200618; US 202017620616 A 20200618