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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.
Shandong Hengyu
Project Overview
- Zaozhuang Hengyu Paper Co., Ltd. is a leading, specialized, refined, distinctive, and innovative enterprise in Shandong Province, focusing on specialty papers and food‑packaging paper. It holds a market‑leading share in the domestic eco‑friendly parchment paper segment, with its products exported to high‑end markets in Europe and North America. The company’s production lines encompass a range of processes, including silicone coating, resin impregnation, and base‑paper manufacturing; however, operating conditions vary significantly across these lines, imposing extremely stringent requirements for temperature‑field uniformity, anti‑sticking, condensation prevention, and energy‑consumption control. In response to the distinct operational needs of Hengyu Paper’s silicone‑coating, resin‑impregnation, and base‑paper lines, Zhengding Environmental has custom‑designed dedicated enclosed hood systems, enabling unified, stable operation across multiple lines while delivering remarkable energy‑saving and consumption‑reduction benefits. This has further strengthened Zhengding Environmental’s reputation as a specialist and its competitive edge in providing integrated hood solutions for specialty coating, resin‑impregnation, and base‑paper production lines.
- All production lines in this project have been put into operation. The hood systems on each line operate stably, delivering uniform drying with no condensation or dripping, and seamlessly meet the stringent drying requirements of three distinct processes—silicone coating, resin impregnation, and base paper processing. The overall energy‑saving performance is substantial, fully supporting the company’s needs for high‑quality, environmentally friendly production.
Scope of Supply
- Custom-designed, dedicated enclosed hood systems for silicon-coating production lines, tailored to meet the stringent process requirements of low-temperature uniform heating, anti-adhesion, and condensation-free operation.
- Custom-designed, dedicated enclosed hood systems for dip‑coating production lines, meeting the process requirements of robust drying, stable temperature control, and defect‑free manufacturing.
- Custom-designed, closed‑type hood systems tailored for paperboard production lines, meeting the core production requirements of stable drying and energy efficiency while reducing consumption.
- Responsible for the differentiated design of hood systems for three production lines, the full‑range supply of equipment, on‑site installation and commissioning, and end-to-end technical services, ensuring the stable start-up and reliable operation of multi‑process production lines.
Core technology
- In light of the pronounced seasonal temperature variations characteristic of the northern climate in Zaozhuang, Shandong, and to meet the demand for year-round stable operation across multiple process lines, we have reinforced the hood sealing and insulation structure, optimized heat‑energy utilization strategies, and adapted the system to accommodate fluctuating ambient temperatures throughout the year, thereby ensuring both reliable equipment performance and energy efficiency.
- A tailored, one‑line‑one‑solution design approach is employed, with dedicated airflow configurations, insulation structures, and exhaust systems specifically matched to the distinct process requirements of the silicon‑coating line (low‑temperature uniform heating), the resin‑impregnation line (high‑intensity drying), and the base‑paper line (stable evaporation). This precise adaptation to each production line’s operating conditions ensures optimal paper quality for every paper grade.
- To address the inherent challenges of coating and impregnation processes—namely, paper sticking and defect formation—we have developed a custom anti‑condensation and uniform‑temperature control system. This system optimizes the sealed thermal‑insulation structure and dew‑point control logic, enabling precise regulation of temperature and humidity distribution within the enclosure. By eliminating localized overheating, condensation, and dripping, it ensures a smooth, non‑sticky paper surface free from production defects.
- By adopting a standardized, unified design logic that accommodates multi‑line centralized layouts, the system not only meets the differentiated process requirements of each production line but also facilitates centralized equipment operation and maintenance, significantly enhancing O&M efficiency and ensuring long‑term, stable, high‑efficiency, and energy‑saving operation across multiple lines.
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Shandong Hengyu
Shandong Hengyu
Shandong Hengyu
Shandong Hengyu
Shandong Hengyu
Shandong Hengyu
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