Product – Hunan Zhengding Environmental Technology Co., Ltd.

Product Introduction

Zhengding Environmental has carried out multiple improvements and upgrades to conventional enclosed hoods, incorporating new materials and innovative designs to ensure enhanced performance and an optimized structure.

Zhengding Environmental’s enclosed hoods feature excellent thermal insulation and airtightness, an instant fire‑suppression system, precise zero‑position control, and balanced airflow distribution within the enclosure, delivering reliable performance. They protect operators from noise, dust, thermal radiation, and humidity, creating a clean, comfortable workshop environment.

Zhengding Environmental’s hood products have earned high praise from customers for their quality, ease of use, and maintainability.

Product Introduction

Zhengding Environmental’s Yankee hood system, engineered through rigorous system analysis and meticulous design, delivers stable, balanced high‑speed airflow, minimizing thermal losses and enhancing drying efficiency—resulting in energy savings, reduced carbon emissions, and a sustainable, circular operation.

Zhengding Environmental’s Yankee hood effectively addresses insufficient drying capacity in dryer cylinders, delivering substantial energy savings and reduced consumption while enhancing paper quality. In particular, it markedly improves the bulk and softness of tissue paper, enabling stable production across a wide range of applications, including creped household paper.

Product Introduction

Zhengding Environmental’s dust‑removal system employs wet‑type dust collection, paired with a spray‑scrubbing tower and a combined Venturi‑tube–cyclone separator design. This compact, highly efficient configuration effectively captures fine particulates ranging from 0.1 to 20 microns, delivering outstanding purification performance that meets national emission standards while significantly reducing the risk of dust ignition and explosion.

Drawing on extensive project experience, ZDET creates safe, efficient, and comfortable working environments for its clients, offering professional and reliable end-to-end dust-control solutions.

Product Introduction

Zhengding Environmental’s heat recovery equipment features three mature product lines—steam-to-gas, steam-to-water, and gas-to-steam—allowing flexible adaptation to site conditions and papermaking processes, and providing customers with integrated waste heat recovery and utilization solutions.

A multi-stage heat recovery system is employed to maximize the recovery and utilization of waste heat, steadily improve energy efficiency, and reduce production energy consumption.

Product Introduction

The Zhengding Environmental Web Stabilizer is specifically designed for the dryer section of paper machines, open threading zones, and single‑drum Yankee cylinder groups. Leveraging a patented high‑speed web stabilizer and an aerodynamically optimized structure, it generates a uniform, stable airflow that effectively suppresses web flutter, vibration, and deviation, thereby significantly reducing common paper defects such as breaks, creases, folds, and edge curling.

The system features optimized pressure matching and stable operation, accommodating a wide range of paper grades—including high-speed, wide-web paper machines, containerboard, high-strength corrugated paper, specialty cultural papers, and lightweight specialty papers—thereby helping to increase machine speeds, enhance operational efficiency, and improve finished‑paper quality.

Product Introduction

The ZDET steam condensate system is specifically designed for steam heating and condensate recovery in papermaking plants. Featuring a closed‑loop recovery and recirculation configuration, it reliably captures and cleanly reuses high‑temperature condensate generated by steam‑using equipment such as dryer sections and hood systems, thereby minimizing heat loss and reducing water consumption.

The system can reduce steam consumption, ensure the continuous and stable operation of critical equipment such as drying cylinders and steam hoods, and prevent issues like inadequate condensate drainage, water hammer, and leaks from compromising production efficiency and paper quality.

Product Introduction

The Zhengding ambient‑air paper turner features a non‑contact air‑float paper‑guiding design, integrating paper winding and turning, web correction, and hot‑air drying into a single unit. A continuous air cushion supports the paper web without friction or damage, simultaneously performing web alignment and online drying, while its integrated structure streamlines production‑line configuration.

It can effectively enhance the quality of finished coated paper and composite adhesive paper, and is compatible with a wide range of post‑papermaking finishing lines.

Product Introduction

Zhengding Environmental’s Through‑Air Drying (TAD) cylinder is designed to meet the drying requirements of a wide range of household paper products, and is extensively used for drying premium toilet paper, facial tissues, and filter paper, thereby addressing the specialized needs of paper mills.

The equipment employs a non-contact hot-air penetration drying principle, in which a high-temperature airflow passes uniformly through the paper web, removing pore‑bound water that comes into contact with each individual fiber, thereby achieving a higher drying rate than conventional methods.

It effectively preserves the fiber’s native three-dimensional structure, resulting in a finished product with exceptional breathability, enhanced softness, bulkiness, and absorbency, while achieving superior paper quality even with reduced fiber usage.