0.5-20t/h Capacity Decoater Kiln and Dryer for Waste Metal

Advance technology for continuous decoating and drying, from 500 kg/hr to 20 ton/hr, complying with the strictest environmental regulations.

The Hengyang system is designed for removing the volatile organic (paint, lacquers, oils) and inorganic (water) contaminants from a wide range of aluminium scraps by a continuous thermal process. Typical applications . Decoating aluminium shredded scrap such as UBC, profile, carter ... . Drying machining chips, turnings, swarf, ...

Hengyang system main components are: . The Rotary Kiln for processing the dirty scraps. . The Post-combustion chamber, for the incineration of the gases generated in the rotary kiln. . The recirculation fan between both equipments, in order to reuse part of the hot gases generated in the Postcombustion chamber. . The intermediate cyclone, for removing the small particles from the process, such as fines, dust, ... Economical & environmental benefits: . Very low overall energy consumption. . Reduce the metal losses and energy consumption in the melting process. . Improved the Foundry safety (no water). . Controlled volatilization of the VOC. . Full incineration of the generated gases. . Reduces emissions to the environment.

Kiln discharge and temperature

The temperature at the kiln discharge is controlled to ensure a well cleaned final product. The Hengyang tube, acts as a heat exchanger giving up heat to the scrap and kiln exit gases by radiation. The Gases enter the Hengyang tube at afterburner temperature and by the time they reach the end have been cooled, and so used to control the temperature at the discharge end of the kiln, with temperatures below 550º C.

Cyclone & recirculation fan

A high efficiency cyclone unit is employed to remove any particulate from the kiln prior to the recirculation fan and afterburner. The recirculation fan provides the required gas flow from the Afterburner. The fan is fitted with a variable speed drive unit, and the speed of the fan is modulated automatically to maintain the kiln gas exit temperature at the selected control set point.

Kiln Speed and residence time

The kiln rotational speed is adjusted by the kiln drive motor. Each material has an ideal residence time within the kiln barrel.

Kiln gases pressure control

The Hengyang kiln pressure is controlled to ensure that process gases remain within the system and that the infiltration of air into the drum is kept to a minimum. Kiln free O2 level The Hengyang free oxygen level is controlled to ensure the thermal process occurs in the required conditions, avoiding the generation of CO gases.

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.