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

Multi-layer paper sheet gap former and method

A sandwich forming and paper sheet technology, applied in papermaking, paper machines, textiles and papermaking, etc., can solve the problems of large floor area, poor product quality, high energy consumption, etc., achieve small floor space, low manufacturing cost, The effect of low energy consumption

Inactive Publication Date: 2009-01-07
SOUTH CHINA UNIV OF TECH
View PDF1 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology has disadvantages such as large area, high energy consumption, low efficiency, and poor product quality.

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
  • Multi-layer paper sheet gap former and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be described in further detail below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto.

[0025] Such as figure 1 As shown, the multi-layer paper sandwich forming device includes: the upper pulp distribution main pipe 1, the middle pulp distribution main pipe 2, the bottom pulp distribution main pipe 3, the upper pulp distribution branch pipe and the stepped diffusion pipe 6, the lower pulp distribution branch pipe and the stepped diffusion pipe 4 , Medium distribution slurry branch pipe and stepped diffuser pipe 5, multi-layer headbox main body 7, long drifter fixed support 10, short drifter fixed support 9, long drifter 12, short drifter 13, one of the blocking seals 14. The second cover sheet 15, vacuum breast roller 16, vacuum forming roller 17, lower dehydration net 18, upper dehydration net 19, dehydration plate group 20, vacuum dehydration box group 21, vacuum ...

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 discloses a device and method for forming multi-layer paper sheet sandwich net. An upper dehydration net and a lower dehydration net form upper and lower sandwich nets, the two nets between a vacuum forming roller and a vacuum breast roller are integrated to compose to a wedge-shaped opening for containing paper pulp; the wedge-shaped opening are divided into three parts by a long drift sheet and a short drift sheet from top to bottom, the long drift sheet is fixed on the main body of a multi-layer head box by a long drift sheet fixing support, the short drift sheet is fixed on the main body of the multi-layer head box by a short drift sheet fixing support. The method comprises that a lower layer A pulp flow enters into the dehydration wedge-shaped area for performing primary dehydration, then converges with a middle layer B pulp flow at initial end of dehydration sheets, the B pulp flow is evenly arranged above the A pulp flow, an upper layer C pulp flow enters into the dehydration wedge-shaped area for performing primary dehydration, but paper web is not formed yet, from the middle parts of the dehydration sheets, the A, B, C pulp flows are dehydrated together through the dehydration sheets and the vacuum dehydration tank, finally three layers of paper webs are formed. The invention has advantages of simple process, low energy consumption, less investment and compact structure.

Description

technical field [0001] The invention relates to a paper sheet forming device and method, in particular to a multi-layer paper sheet sandwich forming device and method. Background technique [0002] Multi-layer forming technology is a new papermaking technology that dehydrates and forms multi-layer flowing pulp at the same time to obtain a multi-layer fiber structure. Its advantages are: 1) It can change the fiber ratio of the surface layer and the middle layer, and can use more secondary fibers in the middle layer to achieve the purpose of saving resources, protecting the environment, and optimizing the internal and surface structure of the paper sheet; 2) Adopting multi-layer forming Technology that produces paper and board with special functions or properties and significantly improves the quality of paper or board. [0003] At present, the multi-layer paper sheet forming device that is more widely used is mainly the multi-circle network forming device. Chinese utility m...

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): D21F5/14D21F3/04
Inventor 陈克复莫立焕李军杨仁党杨飞
Owner SOUTH CHINA UNIV OF TECH
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