Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Apparatus and method for treatment of pulp

一种纸浆、测量装置的技术，应用在化学仪器和方法、分离方法、洗涤/置换纸浆处理液等方向，能够解决更换测力计、密封件易受磨蚀磨损和其它应力、无法确定占优势等问题，达到成本低廉、减少过载的风险、少空间的效果

Inactive Publication Date: 2010-09-29
METSO PAPER INC
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A problem with such drum washers with zones separated by longitudinal seals is that these seals are susceptible to abrasion, wear and other stresses
This means that the dynamometer cannot be replaced during operation
Additionally, the actuator must be disassembled to be able to replace the dynamometer
Furthermore, the force of the springs is different for each spring assembly of the corresponding seal, since different seals have different tolerances, which means that, according to the previously known construction in SE 528721C2, it is impossible to determine which Force prevails in the corresponding spring assembly during operation

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
  • Apparatus and method for treatment of pulp
  • Apparatus and method for treatment of pulp
  • Apparatus and method for treatment of pulp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In the figures, the same reference numerals are used for similar or corresponding parts.

[0027] figure 1 is a schematic perspective view of a drum provided with compartments which, together with a stationary casing, can be included in a pressure displacement washer according to the invention. A drum 10 is shown provided with a plurality of external compartments (also called pulp compartments or compartments) 12 in which pulp to be washed is placed as it is fed towards the drum. Each compartment 12 has a bottom 12a constituted by a perforated plate and two compartment walls (compartment walls) 12b arranged axially with respect to the drum shaft 16 . exist figure 1 In the illustrated drum, the compartment walls 12b are evenly distributed along the circumference of the drum. The drum 10 is typically journalled on a stationary stand (not shown) in the washing apparatus and is surrounded by a cylindrical casing (eg figure 2 The reference numeral 20 in ) is enclosed, t...

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

The invention relates to a washing apparatus (100) for washing and dewatering of cellulosic pulp, comprising a rotary drum (10) with outer compartments (12) on the drum for the pulp to be washed. The compartments are defined by axial compartment walls (12b) distributed along the perimeter of the drum, a stationary casing (20) surrounding the drum. An annular space (30) is defined between the casing and the drum and wherein the annular space is divided into zones (F, T1, T2, U) by longitudinal seals (40) for formation, washing and output of the pulp. The function of the seals is optimized by devices (60) for force measurement of forces acting on at least one seal with measuring means for measurement of a biasing force of a spring package in the device (60) and measurement of a force acting on a load transmission shaft (40A) of the unit, and extraction means (62) for extraction of a force acting against the seal in a direction away from the drum.

Description

technical field [0001] The invention relates to a force measuring method and device, as well as a washing device for washing and dewatering cellulose pulp, comprising the force measuring device, having a drum provided with compartments. The invention also relates to a method and a device for adjusting the seal in the above-mentioned washing device. Background technique [0002] In all fiber lines some type of washing unit is included to separate the liquid from the cooked pulp. In the subsequent process, washing means are provided to separate the bleaching liquor after the bleaching step. There are many different washing devices that work on different principles. [0003] A well-known washing unit is the drum washer, in which the pulp is dewatered on filter drums after addition of washing liquor, leaving behind in the liquor after previous process steps such as cooking steps or bleaching steps liquid removal. Negative pressure inside the drum allows the removed liquid to...

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): D21C9/06B01D33/067F16J15/16
CPCD21C9/06B01D33/067
Inventor J·奥加德J·伦德伯格
Owner METSO PAPER INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com