1. Overview of mineral rotary dryer
Mineral rotary dryeris a large-scale drying equipment widely used in mining, metallurgy, chemical industry and other industries. It is mainly used to process high-humidity materials such as ore, mineral powder, tailings, quartz sand, etc. The equipment realizes rapid dehydration of materials through the heat exchange principle of the rotating cylinder. It has the characteristics of large processing capacity, low energy consumption, and uniform drying. It is an indispensable key equipment in modern chemical mineral processing.
2. Working principle of mineral rotary dryer
Mineral rotary dryer achieves efficient dehydration through a combination of heat conduction + convection drying. The specific process is as follows:
• Feeding system: wet materials enter the rotating cylinder through a conveyor belt or a screw feeder.
• Hot air contact: high-temperature hot air (200-800℃) enters from one end of the cylinder and fully contacts with the material.
• Rotary drying: the cylinder rotates at a low speed of 3-8rpm, and the material is constantly turned under the action of the lifting plate to ensure uniform heating.
• Waste gas discharge: The evaporated water is discharged with the waste gas after being filtered by the dust removal system, and the dried material is collected from the discharge port.
Key parameters:
• Heat source: Coal, gas, oil or electric heating can be used to adapt to different environmental protection requirements.
• Drying time: Adjust according to the humidity of the material, usually 10-60 minutes to complete dehydration.
3. Applicable materials and industries
Mineral rotary dryers are widely used in the following materials and industries:
| Industry | Applicable materials | Drying effect |
| Mining industry | Iron ore, copper ore powder, gold mine tailings | Moisture content from 30% to less than 5% |
| Chemical industry | Calcium carbonate, bentonite, gypsum powder| | Efficient drying to avoid agglomeration |
| Building materials industry | Quartz sand, kaolin, ceramic raw materials | Improve material fluidity for subsequent processing |
| Environmental protection industry | Sludge, waste residue, industrial waste | Reduction treatment, reduce transportation costs |
4. How to choose a suitable mineral rotary dryer?
When purchasing a mineral rotary dryer, the following factors should be considered comprehensively:
✔ Material properties
• Initial moisture content: High-humidity materials require a large hot air volume model.
• Particle size: Fine powder materials require dust prevention design, and coarse particles require enhanced wear-resistant structure.
✔ Capacity requirements
• Small production line (1-5 tons/hour): Choose a compact single-drum dryer.
• Large production line (10-50 tons/hour): A multi-stage series drying system is recommended.
✔ Heat source selection
• Coal/gas: Low cost, suitable for traditional industrial areas.
• Electric heating/steam: First choice for areas with high environmental protection requirements.
✔ Environmental protection requirements
• Equipped with bag dust collector or wet dust removal system to meet emission standards.
5. Frequently Asked Questions (FAQ)
Q1: How long is the life of a mineral rotary dryer?
A: Under normal maintenance, the service life of the core components can reach more than 10 years, and the wear-resistant layer of the drum can be replaced.
Q2: Will sticky materials stick to the wall?
A: This can be solved by adjusting the angle of the lifting plate or adding a dispersing device. We provide targeted designs.
Q3: Can low-temperature drying be achieved?
A: It supports low-temperature heat pump drying (80-120℃), which is suitable for heat-sensitive minerals.
Mineral rotary dryers are key equipment for improving mineral processing efficiency and reducing production costs. Whether it is a large-scale mine or a fine chemical industry, choosing a suitable dryer can significantly improve production efficiency.
Baichy Heavy Industry – Your Trusted Partner for Seamless Equipment Operation
To ensure optimal performance of your equipment, Baichy Heavy Industry offers:
- Professional on-site installation guidance
- Comprehensive operator training
- 24/7 technical support & maintenance services
Our complete after-sales service system guarantees long-term, stable operation of your machinery with minimal downtime.
Protect Your Rights – Only Use Official Channels
To avoid scams and ensure authentic support, contact us exclusively through:
• Official Website: www.baichychina.com
• WhatsApp: +8615093222637
• Email: [email protected]
Your satisfaction is our priority – expect prompt, professional service every time.
(Note: Beware of unauthorized third parties claiming to represent Baichy. Always verify through official contacts.)
