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Henan Hongke Heavy Machinery Co., Ltd. delivered and commissioned a Φ 2.5×45m zinc oxide rotary kiln line in Tongren, Guizhou. New equipment—not a rebuild. Here's the short version.
Who the Customer Is
A zinc recovery plant in Tongren, Guizhou. They process zinc-bearing industrial residues—steel mill dust and similar byproducts—and recover zinc as zinc oxide.
What Problem They Had
Their old line had issues:
Zinc recovery was inconsistent—value lost in slag
Kiln temperature was unstable—product quality varied
Ring formation caused frequent unplanned stops
Fuel consumption was high
Dust control was marginal
They wanted a new line: higher recovery, stable quality, lower costs, 24/7 operation.
Why They Chose Us
We talked process, not just price – reduction temperature, atmosphere, gas handling
We designed for their actual feed – industrial residues, not standard ore
We took full scope – feed prep, kiln, burner, oxidation chamber, cooling, bag filter, slag quench, PLC
Brand-new equipment – no refurbished units
They inspected our factory before signing
What We Supplied
A complete line around a Φ 2.5×45m rotary kiln.
| Key Spec | Value |
|---|---|
| Diameter | 2.5 m |
| Length | 45 m |
| Application | Zinc oxide recovery |
| Temp | Up to 1,100–1,200°C (reduction zone) |
| Drive | Heavy-duty gear with main + auxiliary motor |
Included: feed preparation (crushing, mixing, pelletizing), rotary kiln, multi-channel burner, oxidation settling chamber, cooling system, pulse-jet bag filter, slag quench system, PLC controls.
Delivery Timeline
| Stage | Status |
|---|---|
| Process design | Done |
| Manufacturing | Done |
| Factory testing | Done |
| Shipment to Tongren | Done |
| On-site installation | Done |
| Commissioning | Done |
| Handover | Done |
Commissioning Results
| Metric | Result |
|---|---|
| Zinc recovery | Improved vs. old line |
| Product quality | Consistent ZnO grade |
| Temperature stability | Stable across shifts |
| Ring formation | Reduced |
| Throughput | Meets design capacity |
| Emissions | Within limits |
What the Customer Said
"The kiln runs steady. Recovery is better than our old line, quality is consistent. The engineering team was responsive during installation and commissioning. We're satisfied." — Production Manager, Tongren
What It Means for Them
More saleable ZnO per ton of feed
Stable quality for offtake contracts
Lower fuel cost per ton
Fewer unplanned stops
Emissions in compliance
One supplier for the whole line
Long-Term Partnership
We don't stop at handover. We provide technical support, spare parts, maintenance guidance, and support for future expansion.
About Us
Henan Hongke Heavy Machinery Co., Ltd. has been making rotary kilns, rotary dryers, ball mills, and crushers since 2006. We do one-stop solutions—complete systems, not just machines.
Processing Zinc-Bearing Residues?
Tell us your feed material, zinc content, and target output. We'll propose a kiln configuration that fits.
Contact Henan Hongke Heavy Machinery Co., Ltd.
Henan Hongke Heavy Machinery Co., Ltd.
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