China Industrial Rotary Dryer Used for Drying Mineral Slag

Mineral Slag Rotary Dryer
Product Description
This type of equipment is widely used in cement, mining, building materials, chemicals, food, metallurgy, chemical, fertilizer production, slag, clay, and other industries. The equipment can be customized according to the type of material, depth of precipitation, and user needs to meet the individual needs of each user.

Product Features
1. The gypsum fixed-speed and quantitative feeder solves the problems of feed and dryer homogeneity, fixed the problem of intermittent feeding, material blocking, and large instantaneous amount of materials. It is a prerequisite for improving the evaporation intensity.
2. Optimizing the internal structure of the dryer maximized the heat exchange area between the material and the hot air is the basis for improving the evaporation intensity.
3. The hot air furnace is rationally selected to optimize its internal structural design and masonry quality, reduce the air leakage rate, reduce the oxygen content in the hot air to less than 5%, and the temperature of any process requiring 700-1100°C can be arbitrarily controlled and used as a dryer. Providing a homogeneous and stable heat source is a reliable guarantee for the high-strength operation of the gypsum dryer.
4. The measurement and control technology system adopts a computer operation platform and frequency conversion PLC control technology, online interlocking control of temperature, pressure, oxygen concentration, device speed, and other process parameters, to achieve automatic detection and control of the entire system, with a centralized, on-site switching function, guarantee The system operates with maximum output, optimal quality, most energy-saving mode, and safe explosion-proof operation.
5. Optimize the configuration of gravity settlement + cyclone dust collector + wet/bag three dust collector, dust concentration <30mg/Nm3, to ensure that the exhaust emission standards.
6. The first modular design, manufacturing, transportation, installation, service concept, and assembly test platform, to optimize the design and manufacturing, more convenient transportation and installation services to return customers, to ensure maximum customer benefits.
7. Solve the problem that the water vapor returns to the material after the system temperature decreases during the same direction movement caused by the dehumidification of the conventional dryer, and increase the drying efficiency to achieve the purpose of deep dewatering.
8. The dryer adopts the double sealing mode of fish scales or mazes and expandable graphite packing mechanical seals to ensure that the dryer system is closed and oxygen-tight and safe to operate.



Drying Process


Working PrincipleThe mineral slag tumble dryer is mainly composed of hot air furnace, belt conveyor, rotary drum dryer, belt conveyor, induced draught fan, cyclone dust collector, bag dust collector (or wet dust collector) and operation control system. The equipment adopts the fair current (or countercurrent) drying process. Its working principle as following: After entering the drying drum, the wet materials are spitting into the following working areas: First, the material guiding zone. The mineral slag enters this zone and contacts with high-temperature hot air to quickly evaporate water. Under the circumstance of the large lead angle guide plate, it is transferred to the next work area; the second is the copy board area. The mineral slag is the lifting flight drop and picks up in this area to form the material curtain state. At this time, the material in full contact with the hot blast. The moisture in the material slag is quickly evaporated and stripped into water vapor. The water vapor is drawn away immediately by the induced draft fan to achieve the purpose of drying the mineral slag; the mineral slag is dried in this area to the moisture content of less than 5% (or lower) In the loose state, after the heat exchange, the material reaches the required moisture state and enters the final discharge area. The third is the discharge area. The drum does not have a copy board in this area. The material is rolling in the area to the discharge port, completing the entire drying process.

Technical Specifications

FAQQ: What is your Business Model? Trading company or factory?
A: We are a 15 years factory, all our machinery is manufactured by ourselves, factory direct sales, product quality, and after-sales service can be guaranteed.Q: Can I visit your factory?
A: Yes. Many domestic and international customers visit our factory every year. Our company is located in Zhengzhou Henan province, China, you can come here by air or train.
The nearest airport is Zhengzhou Xinzheng International Airport, and the Airport Code is CGO.
We will pick you up at the airport. Welcome to visit our factory.Q: What is the Quality of your products?
A: Zhengzhou Jiutian products come with the best quality, and our products passed CE certification, exported to lots countries around the world, such as Australia, Malaysia, India, Italy, Indonesia, Vietnam, Philippines, Korea, Brazil, Argentina, Russia, South Africa, etc. You can rest assured of the quality absolutely.Q: How long is the Warranty of your equipment?
A: Our warranty period is one year generally.
about Us