Pulp crushing equipment and method for production of cellulose fiber by solvent method

A technology of cellulose fiber and pulverizing equipment, which is applied in the direction of continuous material flow weighing equipment, loading/unloading, instruments, etc. requirements and other issues to achieve the effect of low loss

Inactive Publication Date: 2020-10-30
唐山三友远达纤维有限公司
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing pulp crushing equipment and technology have poor crushing effect, and the crushing degree is difficult to meet the requirements for the production ...

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
  • Pulp crushing equipment and method for production of cellulose fiber by solvent method
  • Pulp crushing equipment and method for production of cellulose fiber by solvent method
  • Pulp crushing equipment and method for production of cellulose fiber by solvent method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0036] Such as figure 1 and Figure 4 As shown, the present invention relates to a pulp crushing equipment for producing cellulose fiber by solvent method, comprising a feeding system, a grinder, a conveying system, a storage metering system and a recovery system, the feeding system conveys the pulp to the The inlet of the grinding machine, the conveying system includes a conveying fan 15, a cyclone separator 17 and an exhaust passage 18, the outlet of the grinding mill is connected to the air inlet of the conveying fan 15, and the air outlet of the conveying fan 15 is connected to The inlet of the cyclone separator 17, the storage metering system is located below the solid outlet of the cyclone separator 17, one end of the exhaust channel 18 communicates with...

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

PropertyMeasurementUnit
Apertureaaaaaaaaaa
Thicknessaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a pulp crushing equipment and method for cellulose fiber production by a solvent method. The technological process of the pulp crushing method is as follows: pulp is conveyedinto a grinding machine by a feeding system for crushing, and then the crushed pulp is conveyed into a cyclone separator by a conveying fan; and wind and the crushed pulp are separated by the cycloneseparator, the wind is sent into an exhaust channel and treated by a recovery system, and the pulp separated from the wind enters a storage and metering system. The pulp crushing equipment completes the quantitative feeding, crushing, conveying, storage and metering of the pulp through the feeding system, the grinding machine, a conveying system and the storage and metering system. The effect of pulp crushing can be ensured, the degree of pulp crushing after crushing by the grinding machine is 5-200g/L, and all requirements for cellulose fiber production by the solvent method (NMMO) is met. Meanwhile, the recovery system is added, so the loss of pulp powder with low degree of crushing is minimized in the process of conveying and mixing, and the loss is less than 0.01%.

Description

technical field [0001] The invention relates to pulp crushing equipment and a method for producing cellulose fiber by a solvent method, and belongs to the technical field of production technology for producing cellulose fiber by a solvent method. Background technique [0002] In the production of cellulose fibers by the solvent method, the pulp is mixed with the solvent N-methylmorpholine-N oxide (NMMO) in a certain proportion to form a certain proportion of suspended solids, and the suspended solids evaporate a certain proportion of water through the reactor, so that It forms a glue solution with a certain composition, and the glue solution passes through a filter and is supplied to spinning by a booster pump. [0003] There are hundreds of patents on the method of using N-methylmorpholine-N oxide (NMMO) as a solvent to produce cellulose fibers, one of which is to use low concentration NMMO (moisture content 17-24%) to directly It is mixed with crushed pulp to form a mixtu...

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
IPC IPC(8): B02C13/09B02C13/28B02C13/282B02C13/284B02C13/286B02C13/30B02C25/00B02C23/16B65G65/48G01G11/06
CPCB02C13/09B02C13/2804B02C13/282B02C13/284B02C13/286B02C13/30B02C23/16B02C25/00B02C2013/2825B02C2013/28618B02C2023/165B65G65/48G01G11/06
Inventor 刘勇么志高杨爱中侯荣超周殿朋杜占军于捍江李秋玲金杨吴运生王大明吕宝波王海猛殷权李琦
Owner 唐山三友远达纤维有限公司
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