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致力于节能减排技术的研发与应用，现有业务聚焦于造纸行业重要设备的设计、制造、销售以及与节能降耗和环境保护相关的技术服务和工程实施 -
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Collaboration Cases
Focusing on the research, development, and application of energy-saving and emission-reduction technologies, with deep expertise in energy efficiency and consumption reduction within the ventilation and drying segments of the paper-making industry.
Liansheng Paper Industry
Project Overview
- Liansheng Paper (Longhai) Co., Ltd., located in Zhangzhou, Fujian, is a leading large-scale packaging paper producer in China with a prominent industry position. This project involves the maintenance and retrofit of the hood system for PM7’s packaging paper machine, aiming to enhance system operational stability and drying efficiency while reducing production energy consumption. The project specifications call for reliable hood‑system performance, uniform ventilation, a short retrofit timeline, and minimal disruption to ongoing production. ZDET provided specialized hood‑system maintenance, retrofitting, and commissioning services for this project, further strengthening ZDET’s market reputation in hood‑system upgrades within the packaging paper sector.
- This project was delivered on schedule, passed commissioning on the first attempt, and has demonstrated stable system operation, with drying performance and energy‑saving efficiency both meeting the customer’s expectations.
Scope of Supply
- Undertaking the maintenance and retrofit project for the air hood of the PM7 packaging paper machine, tailored to medium-speed production conditions with a web width of 5,800 mm and a machine speed of 350 m/min.
- Responsible for comprehensive diagnostics of the PM7 paper machine hood system, equipment maintenance, replacement of damaged components, and seal optimization.
- Completed the comprehensive commissioning of the hood system, ensuring on-time project delivery and stable, reliable equipment operation upon startup.
Core technology
- In light of Zhangzhou, Fujian’s humid climate, and in response to stringent requirements for system sealing, stability, and energy-efficient operation, the design has been optimized to enhance hood enclosure and dehumidification, ensuring compatibility with the region’s high-humidity production environment.
- Optimize the air‑flow ratio based on equipment speed and evaporation load, precisely match the operating conditions of packaging paper production, and refine equipment operating parameters.
- Based on the paper machine’s production process, targeted sealing reinforcement and flow‑field optimization are implemented to ensure stable, efficient, and energy‑saving operation.
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Liansheng Paper Industry
Liansheng Paper Industry
Liansheng Paper Industry
Liansheng Paper Industry
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