Troubleshooting common problems of a Jumbo Roll Tissue Machine is crucial for maintaining efficient production in the tissue manufacturing industry. As a leading supplier of Jumbo Roll Tissue Machines, we understand the challenges that operators may face during the machine's operation. In this blog, we will explore some typical issues that may occur and offer practical solutions to keep your production running smoothly.
1. Paper Web Breaks
Paper web breaks are one of the most common and frustrating problems in tissue production. They can lead to significant downtime, product waste, and increased maintenance costs.
Possible Causes
- Uneven moisture content: If the moisture in the paper web is not evenly distributed, it can cause weak spots that are prone to breaking. This can be due to issues with the dryer section or the humidification system.
- Foreign objects: Small particles or debris in the machine can get caught in the paper web, causing it to tear. This may include small pieces of metal, plastic, or other contaminants from the raw materials or the environment.
- Improper tension: Incorrect tension settings in different parts of the machine, such as the press section or the draw between sections, can put too much stress on the paper web and lead to breaks.
Solutions
- Check moisture control: Regularly monitor and adjust the moisture content in the dryer section. Ensure that the steam pressure and the speed of the dryer cylinders are properly calibrated. Maintain a stable environment in the production area to avoid sudden changes in humidity.
- Inspect for foreign objects: Implement a thorough cleaning and inspection routine for the machine. Use magnetic separators and screen filters to remove any potential contaminants from the raw materials. Check the internal components of the machine regularly for signs of wear and tear that could generate debris.
- Optimize tension settings: Consult the machine's manual to set the appropriate tension levels for each section. Use tension sensors and control systems to maintain consistent tension throughout the production process.
2. Poor Sheet Formation
A well - formed paper sheet is essential for high - quality tissue products. Poor sheet formation can result in uneven thickness, weak strength, and an unappealing appearance.
Possible Causes
- Inadequate fiber dispersion: If the fibers in the pulp are not properly dispersed, they will clump together, leading to uneven distribution in the paper sheet. This can be due to problems with the pulping process or the stock preparation system.
- Malfunctioning headbox: The headbox is responsible for delivering a uniform flow of pulp onto the forming fabric. A damaged or misaligned headbox can cause uneven pulp distribution and poor sheet formation.
- Dirty or worn forming fabric: A dirty or worn forming fabric can prevent proper drainage and fiber retention, resulting in a less - than - ideal sheet structure.
Solutions
- Improve fiber dispersion: Adjust the parameters of the pulping process, such as the consistency, temperature, and mixing time. Use appropriate additives, if necessary, to enhance fiber dispersion. Regularly maintain and clean the stock preparation equipment to ensure its proper functioning.
- Inspect and maintain the headbox: Check the headbox for any blockages, leaks, or damage. Make sure that the slice lip is properly adjusted to provide a uniform pulp flow. Regularly calibrate the headbox's flow control valves.
- Replace or clean the forming fabric: Follow the manufacturer's recommendations for cleaning and replacing the forming fabric. Use proper cleaning agents and procedures to remove any accumulated dirt or debris.
3. Glue and Creping Issues
Glue application and creping are critical steps in the production of tissue products. Problems in these areas can affect the softness, absorbency, and overall quality of the tissue.
Possible Causes
- Incorrect glue formulation: Using the wrong type of glue or an improper glue formulation can lead to poor adhesion, excessive glue transfer, or a sticky surface on the tissue.
- Poor creping blade setting: A misaligned or worn creping blade can cause uneven creping, which may result in a rough or inconsistent texture on the tissue.
- Build - up on the Yankee dryer: Over time, glue, fibers, and other substances can accumulate on the surface of the Yankee dryer. This build - up can affect the release of the tissue from the dryer and the quality of the creping process.
Solutions
- Optimize glue formulation: Work with a chemical supplier to develop the appropriate glue formulation for your specific production requirements. Conduct regular tests to ensure that the glue has the right viscosity, bonding strength, and drying properties.
- Adjust the creping blade: Check the position and angle of the creping blade regularly. Replace the blade if it shows signs of excessive wear. Use a precision - adjustment system to ensure accurate blade setting.
- Clean the Yankee dryer: Implement a regular cleaning schedule for the Yankee dryer. Use appropriate cleaning methods, such as steam cleaning or chemical cleaning, to remove the build - up on the dryer surface.
4. Machine Vibration
Excessive machine vibration can cause various problems, including premature wear of components, inaccurate product quality, and even safety hazards.
Possible Causes
- Unbalanced rotating parts: Components such as dryer cylinders, fans, and pulleys can become unbalanced due to wear, dirt build - up, or improper installation.
- Loose or damaged mounting: If the machine is not properly mounted or if there are loose bolts and screws, it can cause vibration during operation.
- Misaligned shafts: Misalignment of shafts between different machine components can lead to increased friction and vibration.
Solutions
- Balance rotating parts: Regularly check the balance of rotating components. Use balancing equipment to correct any imbalance. Replace worn or damaged parts as needed.
- Tighten mounting bolts: Inspect the machine's mounting bolts and screws regularly. Tighten them to the recommended torque values. Check for any signs of damage or wear in the mounting brackets.
- Align shafts: Use precision alignment tools to ensure that all shafts are properly aligned. Follow the manufacturer's guidelines for shaft alignment procedures.
5. Electrical and Control System Failures
The electrical and control systems play a vital role in the operation of a Jumbo Roll Tissue Machine. Failures in these systems can disrupt production and lead to costly downtime.
Possible Causes
- Electrical component failure: Components such as relays, contactors, and sensors can malfunction due to age, overheating, or electrical surges.
- Software glitches: Errors in the control software can cause incorrect machine operation, sensor readings, or communication problems between different components.
- Poor wiring and connections: Loose or corroded wiring connections can lead to intermittent electrical problems and system failures.
Solutions
- Regular maintenance of electrical components: Implement a preventive maintenance program for electrical components. Replace old or worn - out components before they fail. Check for signs of overheating, such as discolored insulation or melted contacts.
- Software updates and troubleshooting: Keep the control software up - to - date to ensure compatibility and performance. Have a qualified technician on - hand to troubleshoot any software glitches. Conduct regular system backups to prevent data loss.
- Inspect wiring and connections: Periodically inspect the wiring harnesses and connections for tightness and corrosion. Clean or replace any damaged wiring or connectors.
In addition to our Jumbo Roll Tissue Machines, we also offer a variety of other tissue - making equipment. For example, if you are interested in producing kitchen towels, our Kitchen Towel Tissue Machine can meet your needs. For napkin production, our Napkin Tissue Paper Machine is a reliable choice. And for those looking for advanced tissue - forming technology, our Crescent Former Tissue Machine provides excellent performance.
If you are facing other problems with your tissue machine or are interested in purchasing new equipment, our team of experts is ready to assist you. We can provide customized solutions based on your specific production requirements. Don't hesitate to contact us for more information and to discuss your procurement needs. We look forward to helping you optimize your tissue production process.
References
- Tissue Machine Operation Manuals
- Industry Standards for Tissue Production
- Technical Journals on Paper and Tissue Manufacturing