Drum dryer, rotary drum drying equipment for mining
Product Introduction of Drum Dryer
Drum dryer, also known as rotary dryer, is a drying equipment widely used in industrial production. It is mainly composed of key components such as rotating body, lifting plate, transmission device, support device and sealing ring. With its unique design and excellent performance, it plays an important role in many fields.
Working Principle
The heat source of the dryer usually comes from the combustion device, and the downstream heating method is mostly adopted. After the dried material enters the cylinder from the feed box and the feed slide, it is quickly pushed to the rear end by the spiral lifting plate. Because the cylinder is placed at an angle, the material flows to the rear end of the cylinder under the dual effects of gravity and rotary motion, while being repeatedly lifted up by the lifting plate and brought to a high place, and then continuously sprinkled down, forming a uniform curtain in the cylinder, fully contacting with the hot air flow in the cylinder, and performing heat exchange. The moisture contained in the material is gradually dried in this process, thereby achieving the purpose of drying.
Performance characteristics
1. **Energy-saving and high-efficiency**: Some rotary drum dryers use reasonable operating parameters, and the coal consumption and electricity consumption can be reduced by more than 10%-15% compared with general dryers, while the hourly output is increased by more than 10%-15%. For example, some advanced models optimize the structure of the lifting plate to make the material evenly distributed in the radial section of the dryer, and the material curtain is thin, uniform, and full, fully exposed to the hot air flow, which greatly improves the utilization rate of thermal energy.
2. **Sturdy and durable**: The drum body is mostly made of rigid material, with high hardness, high toughness, and outstanding wear resistance, which effectively extends the service life of the equipment. The support wheel structure is scientifically and reasonably designed, and the lubrication method is diversified, which greatly reduces the probability of support wheel wear and broken shaft, and extends the replacement cycle and service life of the support wheel.
3. **Strong adaptability**: It has excellent adaptability to materials and can dry various materials such as river sand, copper ore, pyrrhotite, hematite, limonite, molybdenum ore, gold ore, iron ore, limestone, clay, coal powder, slag, etc. Whether it is granular, powdery, or highly adhesive materials, it can easily cope with it.
4. **Sealing and environmental protection**: The dryer system has good sealing performance and is equipped with a complete dust removal device to effectively reduce dust spillage, create a clean operating environment, and meet environmental protection requirements.
Applicable materials and application fields
1. **Building materials industry**: commonly used for drying limestone, clay, coal powder and mixed materials, etc., to provide raw materials that meet the humidity requirements for cement production and other links.
2. **Metallurgical industry**: can be used to dry various metal ores, such as copper ore, iron ore, etc., which is helpful for subsequent mineral processing, smelting and other process operations.
3. **Chemical industry**: suitable for drying chemical raw materials, products, such as various crystals, light calcium carbonate, activated clay, etc., to meet the drying needs in the chemical production process.
4. **Agriculture and feed industry**: can dry straw, forage, leaves, fish meal, corn sauce, starch residue, distiller’s grains, drug residue, fruit residue, etc., to provide support for agricultural production and feed processing.
5. **Other industries**: also widely used in food, mining, power and other industries, such as drying food raw materials, ore slurry, phosphate slag, aluminum plant red mud, etc. The rotary drum dryer has become an ideal choice for material drying in many industries due to its significant advantages such as high efficiency, durability and strong adaptability, and provides a strong guarantee for the efficient operation and development of industrial production.
