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Henan Hongke Heavy Machinery Co., Ltd. just shipped a Φ3.0×60m rotary kiln for dolomite calcination to a customer in Inner Mongolia. Here's the quick story.
The Job: Calcining Dolomite for Magnesium Production
Our customer makes magnesium. To do that, they need calcined dolomite — limestone with magnesium in it that's been heated to break it down into reactive lime. Their old shaft kilns couldn't deliver consistent quality, and magnesium yield was suffering.
They needed a modern rotary kiln that could produce 100 tons per day of high-quality calcined dolomite — reliably, efficiently, and with stable reactivity.
What We Sent
A complete calcination line built around a Φ3.0×60m rotary kiln.
| Key Spec | Value |
|---|---|
| Diameter | 3.0 m |
| Length | 60 m |
| Capacity | 100 tons/day |
| Temp | 1,100–1,250°C |
| Drive | Heavy-duty gear + backup |
The package includes:
Vertical preheater – captures waste heat, preheats stone, cuts fuel ~30%
Φ3.0×60m kiln – longer for complete calcination, high reactivity
Vertical cooler – fast quench preserves reactivity
Seals – keep heat in, dust out
Dust collector – meets environmental standards
PLC controls – automated, minimal hands-on
Why a Rotary Kiln for Dolomite?
Dolomite calcination is tricky. You need:
Precise temperature – too hot and you lose reactivity, too cool and it's not fully calcined
Even heating – consistent product every time
Enough time in the kiln – complete decomposition
Fast cooling – locks in reactivity
Rotary kilns do all of this reliably. Shaft kilns can't match the consistency.
What the Customer Gets
| Benefit | Why It Matters |
|---|---|
| 100 tons/day capacity | Meets production targets |
| Consistent quality | Stable magnesium yield |
| ~30% fuel savings | Preheater pays for itself |
| Automation | Less labor, fewer errors |
| Clean operation | Meets environmental rules |
Who We Are
Henan Hongke Heavy Machinery Co., Ltd. has been building rotary kilns, rotary dryers, ball mills, and crushers since 2006. We design, build, and support equipment worldwide.
Bottom Line
This Φ3.0×60m kiln is a proven solution for dolomite calcination — 100 tons a day, consistent quality, lower fuel costs, and reliable operation.
Got a dolomite or magnesium project? Talk to us.
Contact Henan Hongke Heavy Machinery Co., Ltd. – we deliver equipment that works.
Henan Hongke Heavy Machinery Co., Ltd.
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