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Φ3.0×45m Limonite Rotary Kiln Production Line in Guangxi

Source:Calcination EQPT Cases Time:2026-11-10

Henan Hongke Heavy Machinery Co., Ltd. is a Chinese manufacturer of industrial rotary kilns, rotary dryers, ball mills, crushers and complete mineral processing production lines. This article introduces the Φ3.0×45m limonite rotary kiln production line project in Guangxi. It covers the project configuration, equipment advantages, installation and commissioning service, and customer feedback.

1. Project Background and Customer Needs

The project is located in Guangxi. The customer uses limonite as raw material and planned to build a limonite roasting production line. The core equipment is a Φ3.0×45m limonite rotary kiln, which is used for magnetizing roasting of limonite and supplies material for later magnetic separation and iron concentrate production. The customer mainly focused on:

  • Stable control of limonite roasting temperature and atmosphere;

  • Material retention time in the kiln and roasting uniformity;

  • Stability of the kiln shell under continuous operation and service life of the refractory;

  • Fuel consumption and thermal efficiency;

  • Sealing at the kiln inlet and outlet and dust control;

  • On-site installation guidance, commissioning training and later spare parts supply.

Henan Hongke provided a Φ3.0×45m limonite rotary kiln and supporting equipment configuration based on the customer’s limonite properties, target throughput and site conditions. The company also supported equipment manufacturing, shipping, installation guidance and commissioning training.

2. Company Introduction

Henan Hongke Heavy Machinery Co., Ltd. designs and manufactures industrial rotary kilns, rotary dryers, ball mills, crushers and complete production lines. Its products are used in limonite, iron ore, manganese ore, cement, lime, metallurgy, mining, building materials and chemical industries. The company provides single machines, complete production lines, spare parts, on-site installation guidance and commissioning training.

3. Φ3.0×45m Limonite Rotary Kiln Production Line Configuration

The core equipment of this project is a Φ3.0×45m limonite rotary kiln. The line includes feeding, combustion, dust control, cooling, discharge and PLC control systems. Items marked “according to project configuration / to be verified before publishing” should be replaced with values from the contract technical agreement and final drawings before publishing.

Item

Case Configuration / Notes

Equipment name

Limonite rotary kiln production line

Model / size

Φ3.0×45m

Application material

Limonite

Kiln shell diameter

3.0 m

Kiln shell length

45 m

Processing capacity

According to customer material and process (fill in contract value before publishing)

Feed particle size

According to material test and contract (to be verified before publishing)

Feed moisture

According to material test and contract (to be verified before publishing)

Roasting temperature

According to limonite process requirements (to be verified before publishing)

Main motor power

According to final selection (to be verified before publishing)

Total weight

According to final drawings (to be verified before publishing)

Inclination

According to process design (to be verified before publishing)

Rotation speed

Variable frequency speed control, according to process configuration (to be verified before publishing)

Number of support stations

According to design drawings (to be verified before publishing)

Transmission

Girth gear drive, according to project design

Sealing

Multi-point sealing at kiln inlet and outlet, according to project configuration

Fuel type

Coal, natural gas or mixed fuel, according to project configuration

Dust control

According to project environmental requirements (to be verified before publishing)

Control mode

PLC automatic control, according to project configuration

Service scope

Installation guidance, commissioning training and spare parts supply

Φ3.0×45m limonite rotary kiln production line site in Guangxi - Hongke Heavy

4. Equipment Advantages of Henan Hongke

For this limonite rotary kiln project, the main advantages of Henan Hongke’s equipment and solution are as follows.

4.1 Selection based on limonite properties

The particle size, moisture, iron grade and mineral composition of limonite affect roasting temperature, retention time and roasting results. Henan Hongke selects the kiln size, refractory and combustion system based on the customer’s material test results and target roasting indicators, so the equipment parameters match the process.

4.2 Controllable roasting temperature and atmosphere

The line is equipped with a combustion system and temperature monitoring. This makes it easier to control the roasting temperature and kiln atmosphere according to process requirements and reduces the effect of temperature fluctuation on limonite magnetizing roasting.

4.3 Kiln shell and refractory designed for the working conditions

The kiln shell is designed for continuous operation. The refractory configuration considers both heat insulation and service life. This helps reduce heat loss from the kiln shell and improve thermal efficiency.

4.4 Stable transmission and easy process adjustment

The kiln uses a girth gear drive and variable frequency speed control. This makes it easy to adjust the kiln rotation speed according to material and throughput requirements while keeping operation stable.

4.5 Sealing and dust control

The kiln inlet and outlet use multi-point sealing structures. The sealing form is configured according to the project. This helps reduce air leakage and dust escape and improves the site environment.

4.6 Automatic control and complete line service

The line is equipped with a PLC control system that monitors and interlocks feeding, combustion, temperature, transmission and dust control. Henan Hongke can provide equipment for feeding, rotary kiln, cooling, dust control and discharge as a complete line. The company also provides installation guidance, commissioning training, spare parts and after-sales support.

5. Project Execution and Customer Feedback

During project execution, Henan Hongke followed the agreed schedule for equipment manufacturing, factory inspection, shipping and on-site installation guidance. During commissioning, the company trained the customer’s operators and supported linked equipment commissioning and trial production.

In the project follow-up, the customer’s overall feedback on the cooperation was positive. The customer recognized the equipment manufacturing quality, delivery support, on-site installation guidance and commissioning training response, and considered that the production line met the project expectations. Specific customer comments, acceptance data and operating figures should be based on project visit records and acceptance documents before publishing.

6. FAQ: What to Check When Choosing a Limonite Rotary Kiln?

Q1: What capacity can a Φ3.0×45m limonite rotary kiln handle?

Capacity depends on limonite particle size, moisture content, iron grade, target roasting result, fuel type and operating schedule. It cannot be decided by kiln size alone. Customers should provide a material test report and target throughput so Henan Hongke can make a preliminary selection.

Q2: Why is roasting temperature control important for a limonite rotary kiln?

Limonite magnetizing roasting needs to convert weakly magnetic limonite into strongly magnetic magnetite. If the roasting temperature is too high or too low, it affects the roasting result and the recovery rate of later magnetic separation. The roasting temperature should be decided by material properties and process tests, and controlled through the combustion system and temperature monitoring.

Q3: Can Henan Hongke provide spare parts and on-site service?

Yes. Henan Hongke can supply spare parts such as refractory materials, transmission parts and sealing parts. It can also provide installation guidance, commissioning training and after-sales support according to project needs. For more information, see spare parts and after-sales service.

7. Planning a Limonite Rotary Kiln Project? Contact Henan Hongke

If you are planning a limonite roasting rotary kiln production line, or if you need a Φ3.0×45m or custom-sized rotary kiln, please send the following information to Henan Hongke:

  • Material name, particle size, moisture content, iron grade and material test report;

  • Target throughput and operating schedule;

  • Target roasting result and requirements of the later magnetic separation process;

  • Fuel type (coal, natural gas or mixed fuel);

  • Project location and power supply conditions;

  • Environmental, dust control and automation requirements.

Henan Hongke will provide a preliminary selection suggestion and quotation based on the project conditions. Please use contact Hongke to send your requirements, or visit our products page to learn more about rotary kiln products.

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