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Device for threading a processing installation, such as a dryer

A technology for processing facilities and dryers, applied in the direction of textiles and papermaking, paper machines, paper machine wet ends, etc., to achieve the effect of reducing the risk of failure in the feeding process

Active Publication Date: 2009-05-13
ANDRITZ TECH & ASSET MANAGEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been found that the tail tends to slip off the belt of the device of US 3,759,434

Method used

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  • Device for threading a processing installation, such as a dryer
  • Device for threading a processing installation, such as a dryer
  • Device for threading a processing installation, such as a dryer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Figure 1a shows a tail conveyor 1, seen from the side, for conveying a tail of paper web material through a processing facility, such as a dryer, not shown. FIG. 1 b is an enlarged schematic side view and shows certain details of the tail conveyor 1 . FIG. 2 shows the tail conveyor 1 seen from above, ie in the direction of arrow II in FIG. 1a. The tail conveyor 1 is useful, for example, for feeding a fibrous pulp web through a pulp dryer of the Andritz Pulp Dryer type. The process of feeding a tail through a processing facility, such as a dryer, is generally referred to as passing through the processing facility. The tail conveyor 1 comprises a tail conveyor bar 2 supported on a structure 4 . As shown in FIG. 1 a, the tail transfer bar 2 is provided with a fixing element 6 which fixes the tail transfer bar 2 to the structure 4 . As an option, the fixing element 6 can be provided with a hinge 7, so that the tail transfer bar 2 is pivotable in the horizontal plane. Th...

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PUM

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Abstract

A device (1) for feeding web material through a processing installation comprises a conveyor belt (28) which has a first segment (30) and a second segment (32). An opening roller and a guiding surface are adapted for unfolding the conveyor belt (28) by means of separating the first and second segments (30, 32). A spreader roll (12) is adapted to keep the conveyor belt (28) unfolded while a tail (58) of said web material is placed on said first segment (30). A folding roll (26) is adapted for folding said second segment (32) over said first segment (30) for to enclose the tail (58) in the conveyor belt (28). The spreader roll (12) comprises a first roll portion, a second roll portion and a circumferential guiding track separating the roll portions. The first roll portion, which is adapted for supporting said first segment (30), has a cylindrical outer surface (16).

Description

technical field [0001] The present invention relates to an apparatus for feeding paper web material through a processing facility such as a pulp dryer by means of a conveyor belt which is divided in its longitudinal direction into a first substantially flat segment and a substantially flat first segment. The second section, the device comprises an opening member and a guide surface located downstream of the opening member as viewed in the direction of travel of the conveyor belt, the opening member and the guide surface are adapted to unwind the conveyor belt by separating the first and second sections, the device is also provided with a stretching rollers, the spreader rollers are located downstream of the guide surface and are adapted to hold the conveyor belt unfolded while the tail of said web material is placed on said first section, and the folding members are located downstream of the spreader rollers and adapted to The second section is folded over the first section to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21G9/00D21F2/00D21F7/00
CPCD21G9/0063
Inventor R·彼得松
Owner ANDRITZ TECH & ASSET MANAGEMENT
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