This invention relates to a plant used to form an air-laid web of fibers and a powder on a running endless forming wire that is air-permeable and operates mainly horizontally, wherein the plant includes a suction unit positioned under the forming wire; a forming head with a perforated base positioned above the forming wire; at least one fiber feed duct using air flow from the fiber source to feed the fiber into the forming head; and at least one powder feed duct to feed powder by means of air flow from the powder source into the forming head.

A fiber distributor for forming an air-laid fiber web on a running endless forming wire which, during operation, in principle is horizontal. The fiber distributor includes a suction unit positioned under the forming wire, a housing positioned above the forming wire and having at least one combined fiber and air inlet, and a base having a number of flow openings, and a number of rotational wings positioned above this base. These wings distribute the fibers along the upper side of the base. The base is designed as a grid with grid bars which taper in a downwards direction. In the flow openings of the grid, a slip is advantageously formed which prevents the fibers from packing together and blocking the openings during operation. The fiber distributor is thus, at a continuous high capacity and is able to form an even and homogenous fiber layer on the forming wire.

The invention relates to a plant for producing a non-woven, web-formed fiber product. The plant comprises a first forming wire with an inlet and outlet end and an upper part which, at the inlet end takes up a carded or air-laid layer of fiber and transports it to the outlet end. The plant also includes a roller with an upper and lower roller part for compressing the fiber layer, and a second wire, positioned above the first wire, with a lower part which extends across the roller, and a suction box which is placed above the roller. In the section (a) between the outlet end of the first forming wire and roller, the fiber layer is firmly sucked onto the under side of the lower part of the second wire via the suction box. The fiber layer is thus stabilized so that the plant can, at a considerably faster production speed than corresponding conventional systems, produce a non-woven, web-formed fiber product of high quality with an evenly distributed fiber density and uniform surface.