China Haichuan Renewable Environmental Protection Technology Project
China Haichuan Renewable Environmental Protection Technology Co., Ltd.
July 7, 2024-Meixin successfully provided an intelligent comprehensive solution for a medium-to-large high-strength corrugated paper machine owned by China Haichuan Renewable Environmental Protection Technology Co., Ltd. The paper machine has a paper width of 4500mm and operates at a speed of up to 480 meters per minute, primarily producing high-strength corrugated paper of 110-140 g/m². Meixin supplied the project with dryer fabric cleaning system, wire and press felt cleaning system, vacuum roller cleaning system, and water jet tail cutter for wet end, comprehensively improving the paper machine's operational efficiency, paper quality, and production safety.
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. Wire and Press Felt Cleaner
Function: Meixin's intelligent wire and 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 fabric 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 fabric 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 forming and press sections
Significantly reduces water mist in the forming and press sections
Easy cleaning or nozzle replacement without shutdown
Wire and Press Felt Cleaner
3. Vacuum Roller Cleaner
Function: In the papermaking process, vacuum roller holes are prone to clogging due to the accumulation of pulp fibers, fillers, and stickies, leading to reduced dewatering efficiency, unstable wet end operation, and increased web break frequency. 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 suction roll performance
Reduces web breaks and shutdown maintenance caused by plugged holes
Improves paper machine operating efficiency, thereby increasing production output
Vacuum Roller Cleaner
4.Water Jet Tail Cutter for Wet End
Function: Meixin's water jet tail cutter for wet end features stable and reliable cutting of tail threading strips and full sheet spreading. The system is equipped with one nozzle that produces a high-quality water jet to cut the paper web and form a tail strip. When full sheet spreading is required, a high-precision moving carriage carrying the cutting nozzle moves to the outside of the paper web on the drive side of the paper machine to complete the tail threading and sheet spreading.
Benefits:
Automatic start and stop
Equipped with wireless communication module for remote wireless operation
Automatically and quickly executes the return command upon receiving a web break signal
Maximizes prevention of broke accumulation in the dryer section and press section
Smooth water jet movement, improving the success rate of tail threading and sheet spreading
PLC and inverter servo combination for intelligent and precise tail threading positioning
Overall material of 304 stainless steel, durable and reliable
Water Jet Tail Cutter for Wet End
The comprehensive solution provided by Meixin for China Haichuan Renewable Environmental Protection Technology effectively addresses key production challenges. The dryer fabric cleaning system solves the problem of adhesive contamination, the wire and press felt cleaning system improves dewatering performance and reduces energy consumption, the vacuum roller cleaning system ensures the stability of wet end operation, and water jet tail cutter for wet end further enhances the level of tail threading automation and operational efficiency. The synergistic effect of these systems significantly reduces web break frequency, increases machine speed and production output, delivering tangible benefits to the customer.
