As a core equipment in material classification, the rotary trommel screen plays an irreplaceable role in screening, grading, and impurity removal across various industrial fields. Ruijie, focusing on trommel screen R&D and customization, has developed products with outstanding performance, which not only realize precise material separation but also adapt to diverse working conditions.
1.Core Functions and Typical Applications in IBA Wet Sorting Lines
The primary function of a rotary trommel screen is to separate materials of different sizes through the rotating drum with specific holes, and it can be customized into waste trommel screen, iron classify trommel screen, floating trommel screen and grading trommel screen, according to actual needs—this versatility makes it a key part of wet separation lines, especially in slag wet sorting processes.
In slag wet sorting production lines, different types of Ruijie trommel screens undertake specific tasks, forming a seamless screening chain:
1.1 Waste Trommel Screen
-Waste screening trommel screen as the first screening barrier: Installed right after the feeder, it serves as the initial screening equipment. It efficiently separates large slag (which needs further crushing) from small slag (that meets the next process requirements). The large slag is conveyed to the crusher for size reduction and then returned to the rotary trommel screen for cyclic screening, ensuring no large particles enter the subsequent process and maintaining continuous and efficient operation of the entire production line.
1.2 Iron Classify Trommel Screen
– Iron classify trommel screen for iron material purification: For ferrous materials separated by magnetic separation equipment, the iron classify trommel screen performs three key functions: cleaning surface attachments, removing adhering mud particles, and classifying iron materials by size. This precise treatment facilitates classified recovery and reuse of iron materials of different specifications, improving the economic value of recycled materials.
1.3 Floating Trommel Screen
– Floating trommel screen for impurity removal in sand: Placed after the jig machine, it leverages the principle of water buoyancy. Light impurities such as plastic bags, foam, and wood chips float on the water surface and are separated from the sand, while the heavy sand sinks and is collected, ultimately obtaining high-purity clean sand products that meet construction or industrial standards.
1.4 Grading Trommel Screen
– Grading trommel screen for fine classification: After the sand washer, the grading trommel screen conducts precise particle size classification. It accurately screens materials into two specifications: 3~12mm and below 2.5mm. The oversize materials (larger than 12mm) are sent back to the crusher for reprocessing, realizing full utilization of raw materials.
2. Unique Features and Advantages of Ruijie Trommel Screen
1. Highly flexible customization service: This is the core competitive advantage of Ruijie rotary trommel screen. According to the physical properties of materials (such as hardness, viscosity, and particle size distribution) and specific production requirements of customers, the drum can be fully customized. For example, for materials with uneven particle sizes, round holes with different diameters can be selected; for long strip materials, strip holes with appropriate widths can be adopted. This targeted design ensures the screening efficiency reaches over 95%.
2. Dual-structure options for diverse scenarios: Ruijie provides two structural types to adapt to different working environment requirements. The fully enclosed structure is equipped with a sealed shell and dust collection interface, which can effectively prevent dust leakage and reduce operating noise, making it suitable for areas with strict environmental protection standards. The semi-enclosed structure is semi-open design, allowing operators to directly observe the material movement and screening effect inside the drum, facilitating real-time adjustment of operating parameters.
3.Gear transmission for stable and durable operation: Compared with chain transmission or belt transmission, the gear transmission system adopted by Ruijie rotary trommel screen has higher transmission efficiency and better stability. It can withstand heavy loads during long-term operation without slipping or loosening, reducing the failure rate .
3. Wide Application Scope Across Industries
1. Mining industry: In ore beneficiation processes, Ruijie rotary trommel screen is used for pre-screening and grading of raw ores. For example, in iron ore beneficiation, it separates the ore into particles of different sizes, so that ores of appropriate particle sizes can directly enter the magnetic separator, avoiding over-grinding and improving beneficiation efficiency. It is also applicable to non-ferrous metals such as copper and gold ores, with strong adaptability to various ore types.
2. Coal washing industry: In coal preparation plants, it is mainly used for desliming and grading of raw coal. It can effectively remove mud and fine impurities attached to the surface of coal, and classify coal into different grades (such as lump coal, granular coal, and pulverized coal) according to market demand, improving the quality and added value of coal products.
3. Agricultural field: It is widely used in the screening and grading of agricultural products. For grain processing, it can separate grains from impurities such as straw and stones, and classify grains by size to meet the requirements of different processing purposes. In fertilizer production, it screens powdered and granular fertilizers, ensuring uniform particle size of finished fertilizers and improving fertilizer efficiency.
4. Waste treatment industry: In municipal solid waste treatment and construction waste recycling, Ruijie rotary trommel screen plays a key role in sorting. It can separate waste into different specifications according to particle size, facilitating the recovery of recyclable materials (such as metals, plastics) and the harmless treatment of non-recyclable waste.
4. Conclusion
In summary, Ruijie rotary trommel screen, with its versatile functions, customized design, and stable performance, provides efficient screening solutions for various industries. Whether in wet separation or dry processing, it can meet diverse needs and create more value for users.
