Hunan Zhengding Environmental Technology Co., Ltd.

news

News Center

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.

Zhengding’s Support Ensures Another Success Overseas—Algeria Jielong Paper Industry Achieves Full Production Immediately Upon Startup


 

The Jielong Paper Industry Project Has Been Commissioned |ZDET

Zhengding Safeguards Another Success Overseas

Recently, good news arrived from Algeria in Africa: the 4,400 mm × 550 m four‑drum, three‑press paper machine project of Jielong Paper Industry has been successfully commissioned and is now in operation, achieving the outstanding result of “reaching full production capacity immediately upon startup”! At this exciting moment, the hood system and the paper machine ventilation system—custom‑designed and manufactured by Hunan Zhengding Environmental Technology Co., Ltd.—have provided robust support for the project’s efficient implementation, thanks to their mature and professional expertise.

Recently, good news came from Algeria, Africa — the Jornlong Paper 4400mm/550m four-roll triple-press paper machine project successfully started operation, achieving the excellent result of "full production immediately upon start-up"! At this exciting moment, the air hood system and paper machine ventilation system, custom-designed and manufactured by Hunan Zhengding Environmental Technology Co., Ltd., provided strong support for the efficient implementation of the project with professional expertise!

 

High-standard, robust, and comprehensive supporting facilities

High standards, rigorous core support

This project features a paper machine with a web width of 4,400 mm and a design speed of 550 m/min, employing an advanced four‑drum, three‑press configuration that places extremely stringent demands on the stability of the production environment and the compatibility of the process.

This project has a paper machine with a width of 4400mm and a design speed of 550m/min, adopting an advanced four-roller three-press structure, which places very high demands on the stability of the production environment and process adaptability.

As a research and development and design entity for papermaking ventilation and drying technologies,

A specialized manufacturer of equipment manufacturing, engineering installation, and production line optimization.

Zhengding Environment, leveraging its years of deep industry expertise and technological accumulation,

Becoming the solution provider for the project’s air hood and ventilation systems,

Fully involved in project technical coordination,

End-to-end solution design, installation, and commissioning.

As a professional manufacturer in the research, development and design of paper-making ventilation and drying technology,equipment manufacturing, engineering installation, and production line optimisation, Zhengding Environmental, with years of technical accumulation in the industry, has become the solution provider for the project's hoods and ventilation systems, participating in the entire process of project technical coordination, scheme design, and installation commissioning.

From the initial phase—conducting operational‑condition assessments and decomposing customer requirements—to personalized solution design and technical optimization, and further to on-site installation guidance and system integration testing, the Zhengding Environmental team has consistently placed customer needs at the heart of its work, precisely aligning with the high‑speed operating characteristics of paper machines and laying a solid foundation for the project’s smooth progress.

From the initial project condition survey and requirement analysis, to the personalised customisation of solutions and technical optimisation, and then to on-site

installation guidance and system integration commissioning, the Zhengding Environmental Team has always focused on customer needs, accurately matching the high-speed operational characteristics of paper machines, laying a solid foundation for the smooth progress of the project.

 

The Jielong Paper Industry Project Has Been Commissioned |ZDET

Customized solutions to technical challenges

In response to the operational characteristics of open‑type fume hoods in this project, Zhengding Environmental has focused on two key technical pain points and developed a tailored solution:

Airflow Optimization: Through simulation analysis, the supply‑exhaust air‑volume ratio and airflow path are scientifically optimized to prevent flow turbulence, ensuring uniform and stable airflow throughout the hood and meeting the paper machine’s operating requirements at 550 m/min.

Dehumidification System Upgrade: Optimize the design of the dehumidification channel to enhance moisture‑removal efficiency per unit time, swiftly expel the substantial water vapor generated during production, prevent condensation and re‑moisturization, and ensure continuous, stable equipment operation.

Focusing on the operational characteristics of the project's open hood, Zhengding Environment concentrates on two core technical challenges to develop a dedicated solution:

Airflow organisation optimisation: Through simulation analysis, scientifically plan the supply and exhaust air ratio and airflow path to avoid airflow turbulence, ensure balanced and stable airflow throughout the interior of the hood, and accommodate the 550m/min operating requirements of the paper machine.

Moisture removal system upgrade: optimise the design of the moisture removal channel, improve the moisture removal efficiency per unit time, quickly expel the large amount of water vapour generated during production, eliminate condensation and dampness problems, and ensure continuous and stable operation of the equipment.

 

Expanding the market to build a domestic brand.

Expand the market and build domestic brands

The project’s commissioning and operational performance have thoroughly validated the reliability and suitability of the Zhengding solution: the hood and ventilation systems are precisely matched to the paper machine process, with all key parameters stabilizing rapidly upon startup, thereby providing core technical support for achieving full production capacity immediately after start-up.

The operational performance of the project fully validated the reliability and suitability of the Zhengding solution: the hood and ventilation system achieved precise alignment with the paper machine process, and all parameters stabilised quickly after start-up, providing core technical support for 'full production from start-up'.

The success of this Algeria Jielong Paper Industry project,

This is not only another impressive achievement for Zhengding Environment in overseas markets,

It also helps forge the international competitiveness of China’s high‑quality papermaking equipment.

Contributed their wisdom and solutions.

The success of the Algeria Jielong

Paper Project not only marks another remarkable

achievement for Zhengding Environmental in

overseas markets, but also contributes its own wisdom and solutions to enhancing the international

competitiveness of outstanding

domestic papermaking equipment.

 

Going forward, we will proactively and continuously expand into global markets, deepen our expertise in specialized technologies, and consistently elevate our project delivery capabilities, thereby providing ever‑higher‑quality products and services to papermaking enterprises at home and abroad.

In the future, we will actively and continuously expand into global markets, deepen our professional expertise, continually improve our engineering delivery standards, and provide increasingly high-quality products and services to papermaking enterprises both domestically and internationally.

Congratulations once again on the successful commissioning of the Algeria Jielong Paper Industry Project!

 

Recommended Articles