Product Details
After the calcining process gypsum products must be cooled from
temperatures of 150 C in preparation for further processing. This
is a line of quick and efficient cooling systems based on proven
heat-exchanger technology.
Length | : | 10 mtr to 60 mtr |
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Diameter | : | 1 mtr to 3.6 mtr |
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Method of heating | : | Direct or Indirect |
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Temperature Range | : | 225 to 350 °C |
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Capacity | : | 150 Kg/hr to 25 mt/hr |
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Fuel | : | Producer Gas, Natural Gas , LDO, Diesel, Biomass, Coal, Charcoal,
Lignite, White Coal, Petcoke etc…. |
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Efficient high temperature calcining for plaster production
Rotary Drum Coolers can process up to 100 tonnes per hour of
calcined gypsum products. The hot material is cooled via the
counter-current indirect principal in whom cooling air is moved
along through a bundle of tubes in the direction opposite the
material flow. As material moves through rotating drum its heat
energy is indirectly transferred to the air through the tube walls
and exhausted from the system. This exhaust airflow can readily be
captured and use as pre-heated combustion air for other plant
processes greatly increasing efficiency. The rotating action of the
drum also serves to mix and further homogenize the output product.
Retention time of the material in the cooling unit is carefully
controlled to avoid the formation of unwanted by-products like
soluble anhydrite and dihydrite.
Benefits
- A continuous cooling process for up to 100 tonnes per hour of
calcined gypsum products
- Designed for reclamation of cooling air for use as pre-heated
combustion air
- Rotating action homogenizes output
- Customizable to fit the needs of any plant
Company Profile

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.