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Henan Hongke Heavy Machinery Co., Ltd. just finished two Φ 3.2×30m rotary dryer lines for a ferric sulfate producer in Jinchang, Gansu. Both lines are now running. Here's the story.
What the Customer Needed
This customer runs a chemical plant that produces ferric sulfate as a byproduct. Instead of treating it as waste, they wanted to dry and sell it. To hit their targets, they needed two complete dryer lines – not one.
Their requirements were simple:
Two full production lines, running side by side
Consistent drying quality from both lines
24/7 operation
Dust control that meets regulations
Brand-new equipment – no used machines
They also wanted a supplier who could deliver everything – not just the dryers, but the whole setup. And someone who would stick around after the sale.
What We Supplied
Two complete drying lines, each built around a Φ 3.2×30m rotary dryer.
| Key Spec | Value |
|---|---|
| Diameter | 3.2 m |
| Length | 30 m |
| Number of lines | 2 (running in parallel) |
| Material | Ferric sulfate |
| Capacity | Custom-engineered to their target |
Each line includes:
Controlled feed system
Φ 3.2×30m rotary dryer with custom internal flights
Heating system with temperature control
Dust collector (cyclone + bag filter)
Discharge and conveying system
PLC controls with data logging
How It Works – Simple and Effective
| Stage | What Happens |
|---|---|
| Feed | Ferric sulfate enters through a controlled feeder |
| Drying | Material tumbles through hot gas – moisture evaporates |
| Discharge | Dry product exits at the lower end |
| Dust control | Exhaust gas goes through cyclone and bag filter |
The drum rotates slowly. Internal flights lift and shower the material through the hot gas stream. Uniform contact, consistent drying, no hot spots.
What the Customer Got
| Benefit | Why It Matters |
|---|---|
| Double capacity | Two lines meet growing demand |
| Consistent quality | Both lines deliver the same output |
| Operational flexibility | One line can run while the other is serviced |
| Clean operation | Dust emissions within limits |
| Less manual work | Automated controls reduce labor |
| Full support | Installation, commissioning, spare parts, ongoing help |
Both lines are now running smoothly. The customer is producing high-quality dried ferric sulfate for their market.
Why They Chose Us
We've done multiple lines before – not our first time
We supplied the complete package – no coordinating multiple suppliers
We built everything new – no refurbished equipment
We stay after delivery – spare parts, technical help, maintenance advice
Who We Are – Short Version
Henan Hongke Heavy Machinery Co., Ltd. has been making rotary dryers, kilns, ball mills, and crushers since 2006. We do custom engineering, full manufacturing, installation support, and after-sales service. We focus on one-stop solutions – complete systems, not just individual machines.
Let's Talk About Your Drying Project
Need one dryer? Two? A complete processing line? We can help.
Contact Henan Hongke Heavy Machinery Co., Ltd. – we'll listen and deliver equipment that works.
Henan Hongke Heavy Machinery Co., Ltd.
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