Henan Hongke Heavy Machinery Co., Ltd. is pleased to announce the successful completion of two Φ 3.2×30m rotary dryer production lines for ferric sulfate processing at a customer site in Jinchang, Gansu Province, China. This is a brand-new installation—not a refurbishment, not an upgrade of old equipment—delivered as a complete, turnkey solution.
Project Background: Scaling Up Ferric Sulfate Processing
Jinchang is a major industrial city in Gansu Province, known for its non-ferrous metals and chemical industries. Our customer operates a large-scale chemical production facility that generates significant volumes of ferric sulfate as a byproduct of their processing operations.
Ferric sulfate (Fe₂(SO₄)₃) is a versatile chemical used in water treatment, soil conditioning, and various industrial processes. Rather than treating it as waste, the customer saw an opportunity to dry and process this material into a valuable commercial product. To achieve their production targets, they needed two complete drying lines operating in parallel.
They came to us with clear requirements:
Two complete production lines – not one, but two systems running side by side
Consistent drying performance – both lines must deliver the same product quality
Reliable continuous operation – 24/7 production to meet market demand
Environmental compliance – dust control meeting regulatory standards
Brand-new equipment – no used or refurbished machinery
Why This Customer Chose Henan Hongke Machinery
After evaluating several suppliers, the customer selected Henan Hongke Heavy Machinery for several compelling reasons:
1. Proven Experience with Multiple Lines
This project required two complete dryer lines, not just one. We demonstrated our capability to engineer, manufacture, and deliver multiple systems with consistent quality and performance—a key factor in their decision.
2. Complete, Brand-New Systems
The customer was clear: no refurbished units, no repurposed equipment. They wanted brand-new systems engineered specifically for ferric sulfate drying. We delivered exactly that—two complete production lines built from the ground up.
3. Custom Engineering
We don't sell off-the-shelf equipment. Our engineering team designed each dryer to match the specific characteristics of the customer's ferric sulfate material, including its moisture content, particle size distribution, and flow properties.
4. One-Stop Solution Provider
Henan Hongke Heavy Machinery specializes in one-stop solutions for mining and materials processing. We supplied not just the dryers, but the complete lines—feed systems, heating systems, dust collection, discharge conveying, and controls. The customer didn't have to coordinate multiple suppliers.
5. Commitment to Long-Term Partnership
The customer wanted a partner they could rely on for years, not just for this project. We demonstrated our commitment to after-sales support, spare parts availability, and ongoing technical assistance.
What We Supplied
Two complete ferric sulfate drying lines, each built around a Φ 3.2×30m rotary dryer.
| Key Specification | Value |
|---|---|
| Dryer diameter | 3.2 meters |
| Dryer length | 30 meters |
| Number of lines | 2 (operating in parallel) |
| Material processed | Ferric sulfate |
| Heating method | Configured to customer requirements |
| Capacity | Custom-engineered to customer target |
Each line includes:
Controlled feed system for consistent material entry
Φ 3.2×30m rotary dryer with heavy-duty shell and custom internal flights
Heating system with temperature control
Multi-stage dust collection (cyclone + bag filter)
Product discharge and conveying system
PLC-based controls with full data logging
How the Drying Process Works
| Stage | What Happens |
|---|---|
| Feed | Ferric sulfate enters the dryer through a controlled feed system |
| Drying | Material is tumbled through the hot gas stream; moisture evaporates |
| Discharge | Dried product exits at the lower end with target moisture content |
| Dust control | Exhaust gas passes through cyclone and bag filter; fine particles are captured |
The rotary dryer operates on a simple but effective principle: the drum rotates slowly, and internal lifting flights shower the material through the hot gas stream. This ensures uniform contact between the ferric sulfate particles and the drying air—consistent moisture removal without hot spots or over-drying.
Actual Results: Performance Confirmed
Both drying lines have been successfully commissioned and are now in operation. The results speak for themselves:
| Performance Metric | Result |
|---|---|
| Production capacity | Both lines meet the customer's target throughput |
| Product quality | Consistent moisture content, meeting commercial specifications |
| Operational reliability | Both lines running continuously with minimal downtime |
| Environmental compliance | Dust emissions within regulatory limits |
| Energy efficiency | Optimized design reduces fuel consumption per ton |
The customer now has two complete, reliable drying lines producing high-quality dried ferric sulfate for their market. The parallel configuration also provides operational flexibility—if one line requires maintenance, the other can continue production.
What This Means for Our Customer
| Benefit | Value |
|---|---|
| Double production capacity | Two lines running in parallel meet growing demand |
| Consistent product quality | Both lines deliver the same high-quality output |
| Operational flexibility | One line can run while the other is serviced |
| Environmental compliance | Dust collection ensures clean operation |
| Reduced labor requirements | Automated controls minimize manual intervention |
| Full support | Installation, commissioning, spare parts, and ongoing technical help |
Building Long-Term Partnerships
At Henan Hongke Heavy Machinery, we believe that a successful project is the beginning of a long-term relationship. Our commitment to the Jinchang customer extends beyond delivery:
Technical support – ongoing advice on process optimization and troubleshooting
Spare parts availability – critical components stocked for quick delivery
Maintenance guidance – support for preventive maintenance planning
Future cooperation – ready to support capacity expansion or process changes
We're not just a supplier. We're a partner in our customers' success.
About Henan Hongke Heavy Machinery Co., Ltd.
Henan Hongke Heavy Machinery Co., Ltd. (Henan Hongke Machinery) has been designing and manufacturing industrial processing equipment since 2006. Our product portfolio includes:
Rotary Dryers – for ferric sulfate, ferrous sulfate, sludge, biomass, and industrial materials
Rotary Kilns – for lime, dolomite, metallurgy, and mineral calcination
Ball Mills – for ore, slag, cement, and chemical grinding
Crushers – for primary and secondary size reduction
We focus on one-stop solutions for mining and materials processing—not just individual machines, but complete systems designed to work. From initial engineering to installation guidance and after-sales service, we stay with our customers every step of the way.
Let's Talk About Your Drying Project
Whether you need a single rotary dryer, multiple production lines, or a complete processing solution, we're here to help.
Contact Henan Hongke Heavy Machinery Co., Ltd. – we'll listen to your needs and deliver equipment that works, day after day.
Henan Hongke Heavy Machinery Co., Ltd.
Rotary Dryers | Rotary Kilns | Ball Mills | Crushers – Built for Reliability, Backed by Service