A device for adjusting a press nip

A technology of pressure device and regulating cylinder, which is applied in the direction of counter pressure device, press using rotating pressure member, press, etc., which can solve the problems such as inability to adjust, achieve the effect of improving pulp processing and avoiding stoppage
CN103403250AActive Publication Date: 2013-11-20VALMET OY
7 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
VALMET OY
Publication Date
2013-11-20

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A device for adjusting a press nip (126) defined by a first press roll (102) and a second press roll (104), each press roll being rotatable about an axis of rotation (103, 105) and included in an apparatus for dewatering pulp, and the apparatus has a first pair of bearing housings (220) provided with bearings (218) by means of which the first press roll is journalled, each bearing housing of the first pair and the first press roll being movable in relation to the second press roll in a direction substantially transverse to the axial direction of the press nip, the device comprising pressure means (222) for forcing the bearing housings of the first pair in a direction towards the press nip, the first press roll being movable between a first radial end position and a second radial end position. The device is arranged to adjust the press nip during operation of the apparatus and comprises at least one adjusting cylinder (223; 402) for adjusting the first press roll to each of the radial end positions during operation of the apparatus, the adjusting cylinder being arranged to force at least one of the bearing housings of the first pair in a direction away from the press nip to move the first press roll to one of the radial end positions, and the adjusting cylinder has a length of stroke (S) that defines the difference between two different press nips (I, II) for the apparatus, wherein the length of stroke (S) of the adjusting cylinder (223; 402) is adjustable to adjust the difference between the two different press nips (I, II). An apparatus for dewatering pulp comprises such a device for adjusting the press nip.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a device for adjusting the nip defined by a first press roll and a second press roll, each press roll being rotatable about an axis of rotation and contained in a device for dewatering pulp, in particular fibrous pulp and having a first pair of bearing housings provided with bearings by means of which the first press roll is journalled, each of the bearing housings of the first pair of bearing housings and the first press roll extending substantially transversely movable relative to the second press roll in the axial direction of the press nip; and pressure means for urging the first pair of bearing housings in a direction towards the press nip, the first press roll at a first radial end point position and a second radial end position is movable. Furthermore, the invention relates to an apparatus for dewatering pulp comprising a first press roll, a second press roll and a device of the type described above. Background techniqu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More