A method of drying a cellulose pulp web and an arrangement for drying such a web

A technology of cellulose pulp and guide rollers, applied in the dryer section, pulp dewatering, textiles and papermaking, etc., can solve the problems of increasing the investment cost of the grinding machine, reducing the efficiency of the grinding machine, etc., achieving simple maintenance and supervision, and reducing the overall length. , The effect of saving structural steel

Inactive Publication Date: 2012-10-03
ANDRITZ TECH & ASSET MANAGEMENT
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The cellulose pulp produced by grinding requires a very large space. This space requirement not only increases the investment cost of the mill, but also reduces the efficiency of the mill, because personnel, equipment and the cellulose pulp itself need to move a lot inside the mill. long distance

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method of drying a cellulose pulp web and an arrangement for drying such a web
  • A method of drying a cellulose pulp web and an arrangement for drying such a web
  • A method of drying a cellulose pulp web and an arrangement for drying such a web

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038]Figure 1 shows a prior art apparatus 1 for drying cellulose pulp. The apparatus 1 comprises a drying box 2 in which a cellulose pulp web 3 is dried. The drying oven 2 may be similar to that shown in WO 99 / 36615. The dried cellulose pulp web 3 leaves the drying box 2 and is conveyed to a web position control roll 4 . The pulp web position control roll 4 controls the lateral position of the pulp web. After roll 4 the pulp web 3 is conveyed vertically upwards to roll 5 . The vertical distance H from the web position control roll 4 to the roll 5 should be at least 1 / 2 of the width of the pulp web 3 to avoid wrinkling of the pulp web. The pulp web 3 is then passed through a measuring station 6 which analyzes the pulp web 3 for properties such as moisture content, basis weight, stain and brightness etc. Behind the measuring station 6 there is a web nipper 7 for pulling the pulp web 3 through the drying box 2 and the rolls 4 , 5 . The pulp web 3 is then conveyed to a cutte...

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

PUM

No PUM Login to view more

Abstract

An arrangement (20) for drying cellulose pulp comprises a drying box (22), a web position control unit (24), which is operative for controlling the lateral position of a web (44) of cellulose pulp dried in the drying box (22), and a web forwarding device (28), which is operative for forwarding the web (44) of pulp through the drying box (22) and through the web position control unit (24). The web position control unit (24) comprises a guide roller (54) arrangement comprising at least one guide roller (60, 62) and is operative for delivering a pulp web (44), the lateral position of which has been controlled, at an angle of -45 DEG to +45 DEG to the horizontal plane.

Description

technical field [0001] The invention relates to a guide roll arrangement for drying cellulose pulp, the guide roll arrangement comprising a drying box, a pulp web position control unit operable to control the lateral position of a cellulose pulp web dried in the drying box, and a pulp web transport apparatus operable to pass the pulp web through the drying box and the pulp web position control unit. [0002] The invention also relates to a method for drying cellulose pulp in an apparatus of the type described above. Background technique [0003] Cellulosic pulp is often dried in convection dryers working on the principle of air-fed pulp. An example of such a dryer is described in WO 2009 / 154549. Hot air is blown onto the cellulose pulp web by means of upper and lower blow boxes. The air blown by the blow boxes transfers heat to the pulp web to dry it while floating the pulp web above the lower blow boxes. Hot air is supplied to the blow boxes by an air circulation system...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): D21C9/18D21F5/18
CPCD21H25/04D21C9/18D21F5/18
Inventor R·坎普里斯T·弗兰松
Owner ANDRITZ TECH & ASSET MANAGEMENT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap