Enso-gutzeit Oy

Enso-gutzeit Osakeyhtio

Juhani Kyytsonen

Matti Lankinen

Pentti Vikio

Antti Kuhasalo

Pekka Ruokolainen

Risto Hakulinen

Jorma Rasanen

Marja Salkinoja-Salonen

Ossi Kipelainen

A bark press including a frame and supporting rollers rotatably carried on the frame. These rollers support a rotatable dewatering drum, within which is eccentrically located a press roll, the outside surface of this press roll and the inner surface of the dewatering drum defining a press gap therebetween. The outside surface of the dewatering drum carries at least one ratchet circle with which at least one pressure cylinder cooperates. One end of this pressure cylinder is supported by the frame of the press and the opposite end rotating the dewatering drum step by step through the ratchet circle.

Bark press

The present invention concerns a procedure for purifying in a fluidized bed reactor (1) effluent waters, particularly those produced in the wood-processing industry. The reactor contains, in addition to fluidized, finely divided particles (7), also agglomerated fibre material (8) serving the purpose of reducing the quantity of the floating particles required. The fibre material may for instance be cellulose, introduced in the reactor together with the effluent water to be treated and which is converted into agglomerates in the reactor.

Procedure for purifying effluent waters, particularly those produced in

Disk refiner for cellulose, paper or other equivalent pulp, with two mutually opposed blade disks, at least one of which is rotatable, carrying grinding surfaces facing each other and having within the circumference defined by the grinding surface of one blade disk, in the pulp inlet duct, a sieve plate concentric with the blade disks. Within the sieve plate there is a concentric guide plate so that between the sieve plate and the guide plate there is defined a gap through which the pulp to be refined goes to the grinding surfaces.

Disk refiner

Hydrocyclone for dividing a fibre suspension into a lighter acceptable fraction containing fibres and a heavier reject fraction containing dirt substances. The hydrocyclone comprising a separation chamber consisting in part of a cylinder part provided with at least one passage for the tangential input of the fibre suspension to be divided into different fractions and having within itself a coaxially disposed tube for removal of the lighter fraction, and in part of a sorter cone on the extension of said cylinder part and on the apex of which has been adjoined a conical nozzle which has been made more abruptly tapering than the cone part and which at its apex has a removal aperture for the heavier fraction. On the inner surface of the sorter cone and conical nozzle has been disposed at least one guide vane running in the axial direction of the cyclone and which imparts to the heavier fraction, travelling along a spiral path on the inner surface of the sorter cone and of the conical nozzle, a radially inwardly directed component of motion. The guide vane common to both the sorter cone and the conical nozzle is located at their point of juncture.

Growing community of inventors

Savonlinna, Finland

Juhani Kyytsonen