The zinc-containing input materials are enriched in our rotary kiln using the so-called Waelz process to form Waelz oxide with a zinc content of at least 56 %. For this purpose, the input materials are introduced into the 40 m long rotary kiln together with other additives and handled at approx. 1,200°C.

Zhengzhou Hengyang Industry deploys the reliable rotary Kiln technology that successfully processes over 80% of the world’s recycled steel dust (EAF Dust). The rotary Kiln process is an established, energy-efficient and resilient technology used to treat zinc containing materials and residues.

Technical details:

Capacity: 50-150t/d

Calcination Temp: 400°C--1650°C

Diameter: 2000mm-4000mm

Length: 45000mm—70 000mm

Power: According to the kiln and its capacity.

Material: Q235, G20, 310S, 253MA, 309S, Q245, etc.

End Uses of Zinc

Rotary Kiln Zinc Oxide is the main product of recycling EAF dust utilizing the Waelz Kiln technology. This product is sold to zinc smelters as an alternative to traditional zinc concentrates from mines. The zinc smelters produce pure zinc ingots or other high purity zinc products that are either sold to the steel industry for galvanization purposes or sold to other end-users for pigments, tires, chemicals or medicines.

Hengyang Industry is an Chinese Company based in Zhengzhou city that manufactures, on proprietary technology, plants and equipment for waste recycling and recovery with energy production, material recovery or production of finished goods.

Innovation, R&D, passionate and skilled team along with the customer satisfaction have always been the success of Hengyang and they still are the peculiarities of our Company. Besides the historical Hengyang equipment, like single and double shafts shredders, Crushing machine, briquetting machines, separators, squeezers and centrifuges, the Company offers a wide range of turn-key plants, among which:

• briquetting and pelletizing plants
• shredding plants
• Waste Sorting Plants
• Bio-fuel Plants
• Waste to Power Recycling Plants
• Mining Plants
• OEM Equipments
……..
Hengyang is able to develop customized solutions too.
Designed, constructed and assembled by the same Hengyang

The Company policy focuses on product quality: robustness and functionality of the machines that maintain their value over time.
The ability to challenge ideas and concepts and to interact with partners worldwide has allowed and still allows Hengyang to stay highly competitive and to be an ideal partner for the world market.