China Qianhan Hongjia Paper Mill Project
China Qianhan Hongjia Paper Mill
October 24, 2021-Meixin successfully provided an intelligent comprehensive solution for a high-strength corrugated paper machine owned by China Qianhan Hongjia Paper Mill. The paper machine has a paper width of 5000mm and operates at a speed of 750 meters per minute, primarily producing high-strength corrugated paper of 50-120g/m². Meixin supplied the project with the dryer fabric cleaner, wire & press felt cleaner, vacuum roller cleaner, and water jet reel turn-up system, comprehensively improving the paper machine's operational efficiency, paper quality, and production safety.
1. Dryer Fabric Cleaner
Function: Meixin deployed the PF·Clean intelligent online dryer fabric cleaning system. The system is equipped with high-efficiency cleaning heads installed in the wrap angle area between the dryer fabric and guide rolls, maintaining a reasonable gap from the fabric. High-pressure water nozzles spray the fabric surface at a specific angle to loosen and detach adhesive contaminants. Front and rear air knives assist by blowing off the contaminants, while a vacuum extraction system discharges them outside the paper machine. An external air knife thoroughly removes residual moisture after cleaning.
Benefits:
Online cleaning of dirty dryer fabric during normal production without shutdown
No chemical additives throughout the process, environmentally friendly and pollution-free
Improves and maintains dryer fabric permeability, significantly enhancing drying efficiency
Eliminates web breaks, grooves, marks, and holes caused by dirty dryer fabric
Reduces rewinder breaks caused by stickies-related paper defects
Improves production efficiency and paper machine running performance
Helps increase machine speed and extends dryer fabric service life
Dryer Fabric Cleaner
2. Wire & Press Felt Cleaner
Function: Meixin's intelligent online fabric cleaning system uses high-performance filtered clean water, which generates high-pressure water through a high-pressure pump station. The online cleaning machine is equipped with a high-efficiency cleaning head that traverses across the machine width. The cleaning head's movement is controlled by a PLC with parameter settings via a visual touchscreen. The cleaning head sprays high-pressure water onto the paper machine clothing or suction roll surface at a specific angle to achieve precise cleaning.
Benefits:
Effective water and energy savings
Reduces or eliminates the need for chemical cleaning, more environmentally friendly
Completely solves the problem of uneven moisture distribution and fabric cleaning streaks caused by local nozzle clogging
Optimizes paper machine running performance and dewatering performance, helps increase machine speed
Dense cleaning method effectively removes regional contaminants and individual marks
Reduces web breaks in the forming and press sections
Significantly reduces water mist in the forming and press sections
Easy cleaning or nozzle replacement without shutdown
Wire & Press Felt Cleaner
3. Vacuum Roller Cleaner
Function: Meixin's vacuum roller cleaner is specifically designed to keep vacuum roller holes clean. It can clean vacuum roller holes online during normal paper machine production, effectively reducing hole plugging.
Benefits:
Online cleaning during normal paper machine production without affecting production
Keeps vacuum roller holes open, stabilizing paper machine operation
Improves wet end running stability
Maintains roller surface hole cleanliness and vacuum roller performance
Reduces web breaks and shutdown maintenance caused by plugged vacuum roller holes
Improves paper machine operating efficiency, thereby increasing production output
Vacuum Roller Cleaner
4. Water Jet Reel Turn-up System
Function: Meixin's high-pressure water jet reel turn-up system's beam is installed above the reel. An ultra-high-pressure water generation system produces high-pressure water, which is ejected as high-quality water jets through ultra-high-pressure nozzles. The transfer beam is equipped with two sets of water jet heads. The water jets move at high speed to cut a paper tip while spraying an appropriate amount of adhesive, allowing the paper tip to quickly adhere to the new reel spool for high-quality reel change.
Benefits:
Fully automatic equipment with simple operation, maximizes operator safety and avoids the risk of being pulled into the reel
Extremely short transfer process, paper web smoothly transfers to the new spool with no bottom wrinkles and minimal waste paper
Transfer success rate close to 100%, effectively improving finished paper yield by 0.5%–3%
One-time investment with long-term benefits
Suitable for corrugated paper, kraft paper, kraft linerboard, whiteboard paper, coated board, newsprint, cultural paper, and tissue paper; suitable for almost all paper machine speeds
Water Jet Reel Turn-up System
This four-system comprehensive solution provided by Meixin for China Qianhan Hongjia Paper Mill covers key sections from the forming section, press section, dryer section to the reel-up section, fully demonstrating Meixin's technical expertise and system integration capabilities in paper machine intelligent cleaning and water jet reel turn-up systems.
In the future, Meixin will continue to be committed to providing efficient, intelligent, and environmentally friendly equipment and services for various types of paper machines, including those producing high-strength corrugated paper, kraft paper, kraft linerboard, whiteboard paper, cultural paper, and tissue paper.
