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Patent Searching and Data


Title:
IMPROVED CRESCENT TWIN-WIRE FORMER FOR PAPER MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/062763
Kind Code:
A1
Abstract:
An improved crescent twin-wire former for a paper machine, comprising a rotary forming roller (4); a felt (3) and a forming mesh (2) attached to the outer surface of the felt (3) are attached to a part of the outer surface of the forming roller (4), and a headbox (1) for ejecting paper pulp between the felt (3) and the forming mesh (2) is provided between the felt (3) and the forming mesh (2); said crescent twin-wire former further comprises a pressing roller (10) abutting against the forming roller (4), and the point, where the pressing roller (10) abuts against the forming roller (4), is located behind the contact point between the felt (3) and the forming mesh (2); the wrap angle of the forming mesh (2) on the forming roller (4) is greater than or equal to 60°. The improved crescent twin-wire former for a paper machine has a simple structure and is convenient to use, solves the problems of low dewatering efficiency and high equipment costs in the prior art, has a good dewatering effect and high dewatering efficiency, and is very practical.

Inventors:
LI HAO (CN)
Application Number:
PCT/CN2018/107626
Publication Date:
April 04, 2019
Filing Date:
September 26, 2018
Export Citation:
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Assignee:
SHENZHEN DE WEI FIBER ENVIRONMENTAL PROTECTION TECH CO LTD (CN)
International Classes:
D21F3/02
Foreign References:
CN107419585A2017-12-01
CN205636346U2016-10-12
CN201106134Y2008-08-27
CN1465809A2004-01-07
CN2052415U1990-02-07
CN1035147A1989-08-30
JPH08302581A1996-11-19
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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