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Henan Hongke Heavy Machinery Co., Ltd. delivered a Φ2.5×60m rotary kiln for quartz sand whitening to a customer in India. Design capacity: 150 TPD. Here’s the short version.
Who the Customer Is
A quartz sand processor in India. They supply high-grade silica to glass and ceramics producers. Iron impurities were hurting whiteness—and product value.
What Problem They Had
Whiteness was inconsistent—failed premium specs
Iron was locked in inclusions—washing couldn’t reach it
Feed quality varied between batches
Throughput was too low for downstream demand
Temperature profile wasn’t stable enough for consistent phase change
They needed a calcination kiln—not a modified dryer—to expose iron for acid leaching.
Why They Chose Us
We understand quartz whitening – α to β quartz phase change around 573°C, quenching creates micro-cracks, exposes iron
We designed for their quartz – feed characteristics reviewed before finalizing
We supplied the full scope – feeder, kiln, burner, cooling, dust collection, PLC
Φ2.5×60m is a proven model for 150 TPD mineral processing
They inspected our factory before signing
What We Supplied
A complete whitening line around a Φ2.5×60m rotary kiln.
| Key Spec | Value |
|---|---|
| Diameter | 2.5 m |
| Length | 60 m |
| Application | Quartz sand whitening |
| Capacity | 150 TPD |
| Temp | Up to 1,200°C |
| Drive | Variable frequency control |
Included: feed system (screw or belt), rotary kiln with refractory lining, multi-fuel burner (gas/coal), cooling system, dust collection (cyclone + bag filter), PLC controls with zone temperature monitoring.
Delivery Timeline
| Stage | Status |
|---|---|
| Process design | Done |
| Quartz testing | Done |
| Manufacturing | Done |
| Factory testing | Done |
| Shipment to India | Done |
| On-site installation | Done |
| Commissioning | Done |
| Handover | Done |
Commissioning Results
| Metric | Result |
|---|---|
| Temperature control | Stable across zones |
| Phase transformation | Consistent β-quartz for iron exposure |
| Throughput | Meets 150 TPD design |
| Whitened product | Iron reduced to downstream spec |
| Dust emissions | Within limits |
| Operational stability | Continuous operation achieved |
What the Customer Said
“The kiln runs steady. Temperature control is stable, whitened quartz meets our customers’ specs. The engineering team was responsive. We’re satisfied.” — Production Manager, India
What It Means for Them
Consistent whitened product—meets premium glass/ceramic specs
Higher market value—premium pricing for whitened quartz
Reliable 150 TPD capacity—meets downstream contracts
Emissions in compliance
One supplier for the whole line
New equipment—full service life ahead
Long-Term Partnership
We don’t stop at handover. We provide temperature profile 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 Quartz Sand?
Tell us your iron content, target whiteness, and capacity. 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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