China Shuangding Paper Mill Project
China Shuangding Paper Mill
July 15, 2020-Meixin successfully provided an intelligent comprehensive cleaning solution for a large high-strength corrugated paper machine owned by China Shuangding Paper Mill. The paper machine has a paper width of 4000mm and operates at a speed of up to 400 meters per minute, primarily producing high-strength corrugated paper of 70-100 g/m². Meixin supplied the project with a dryer fabric online cleaning system, a press felt cleaning system, and a vacuum roller cleaning system, comprehensively improving the paper machine's operational efficiency, paper quality, and production stability.
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
2. Press Felt Cleaner
Function: Meixin's intelligent online press felt 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, and operators can set parameters via a visual touchscreen. The cleaning head sprays high-pressure water at a specific angle onto the paper machine clothing, achieving precise cleaning of the press felt and ensuring normal, clean production.
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 felt cleaning streaks caused by local nozzle clogging
Better 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 press sections
Significantly reduces water mist in the press sections
Easy cleaning or nozzle replacement without shutdown
Press Felt Cleaner
3. Vacuum Roller Cleaner
Function: Meixin's vacuum roller online cleaning system 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 roll 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
The three intelligent cleaning systems provided by Meixin for China Shuangding Paper cover key cleaning areas from the press section to the dryer section. The dryer fabric cleaning system effectively solves the problem of adhesive contamination, the press felt cleaning system improves dewatering performance and reduces energy consumption, and the vacuum roller cleaning system ensures the stability of wet end operation. The synergistic effect of these systems significantly reduces web break frequency, increases machine speed and production output, delivering tangible benefits to the customer.
