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Henan Hongke Heavy Machinery Co., Ltd. delivered a Φ 2.5×45m rotary kiln for soil remediation in Xiangtan, Hunan. New equipment—not a rebuild. Here's the short version.
Who the Customer Is
A soil remediation contractor in Xiangtan, Hunan. They clean up contaminated industrial sites—soil impacted by oils, pesticides, PCBs, and heavy metals.
What Problem They Had
Their old setup had issues:
Soil from different sites had different contaminants—hard to treat consistently
Temperature control was unstable—results varied
Throughput was too low for project deadlines
Off-gas treatment was marginal
Sticky or abrasive soil caused frequent stops
They wanted a new thermal desorption system: consistent results across soil types, reliable operation, full compliance.
Why They Chose Us
We talked process, not just price – heating rate, residence time, desorption temperature, off-gas handling
We designed for variable soil – different moisture, organics, contaminant profiles
We took full scope – feed prep, kiln, heating, discharge cooling, off-gas treatment, PLC
Brand-new equipment – no refurbished units
They inspected our factory before signing
What We Supplied
A complete thermal desorption line around a Φ 2.5×45m rotary kiln.
| Key Spec | Value |
|---|---|
| Diameter | 2.5 m |
| Length | 45 m |
| Application | Thermal desorption of contaminated soil |
| Contaminants | Oils, pesticides, PCBs, heavy metals |
| Temp | Adjustable (typically 200–600°C for organics) |
| Drive | Heavy-duty gear with main + auxiliary motor |
Included: feed preparation (crushing, screening, moisture adjustment), rotary kiln, heating system, discharge cooling, cyclone, bag filter, optional afterburner, PLC controls.
Delivery Timeline
| Stage | Status |
|---|---|
| Process design | Done |
| Manufacturing | Done |
| Factory testing | Done |
| Shipment to Xiangtan | Done |
| On-site installation | Done |
| Commissioning | Done |
| Handover | Done |
Commissioning Results
| Metric | Result |
|---|---|
| Temperature control | Stable across range |
| Treatment consistency | Consistent across soil batches |
| Throughput | Meets design capacity |
| Residual contaminants | Meets project specs |
| Off-gas treatment | Effective capture |
| Emissions | Within limits |
What the Customer Said
"The kiln handles different soil types without the problems we had before. Temperature control is stable, and the treated soil meets our project requirements. The engineering team was responsive. We're satisfied." — Project Manager, Xiangtan
What It Means for Them
One system for oils, pesticides, PCBs, heavy metals
Consistent treated soil—meets regulatory limits
Higher throughput—meets deadlines
Effective off-gas treatment—compliance
Less downtime, lower maintenance
One supplier for the whole line
Long-Term Partnership
We don't stop at handover. We provide technical support for different soil types, 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.
Treating Contaminated Soil?
Tell us your soil type, contaminants, and target throughput. We'll propose a thermal desorption configuration that fits.
Contact Henan Hongke Heavy Machinery Co., Ltd.
Henan Hongke Heavy Machinery Co., Ltd.
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