Material screening is an important pre-processing step in industrial production, directly affecting the efficiency and quality of subsequent crushing and processing. In fields such as coal mining, mine beneficiation, and building material production, the screening of large, sticky and wet materials is a frequent and necessary scenario. The processing effect of such materials directly relates to the production capacity and environmental compliance of the entire production line.
However, the handling of these materials has long been a problem for the industry. Traditional equipment often fails to balance efficiency, stability and environmental friendliness, becoming a "blocker" in the production process.
Our Wobbler Feeder precisely meets the processing requirements of these materials. It not only solves problems such as blockages and wear, but also meets the requirements of continuous production and environmental protection, providing an effective solution for enterprises to reduce costs and increase efficiency.
Characteristics Of Large Chunks Of Wet & Sticky Materials
- Outstanding physical properties: The particle size is large (up to 1.8m), the density is high, the surface moisture is easily adhered and causes the material to form clumps, and the high content of mud leads to poor fluidity.
Concentrated processing difficulties: They are prone to adhere to the surface of equipment and form accumulations. The impact force of large chunks of materials is strong, and the sieve holes are easily blocked by the adhered materials, making it difficult to achieve continuous and efficient screening.
Traditional Screening Equipment Disadvantages
- Vibrating screen: The vibration method will intensify the agglomeration of wet and sticky materials, and the screen will be damaged by large pieces of material. After clogging, it requires manual cleaning, resulting in high maintenance frequency and high costs.
- Fixed screen: The screening efficiency is extremely low, and wet and sticky materials are prone to accumulate on the screen surface, unable to meet the requirements of large-scale continuous production.
- Other equipment: There are common problems such as poor sealing performance (dust leakage polluting the environment) and weak self-cleaning ability, making it difficult to meet the dual requirements of environmental protection and continuous production.
Wobbler Feeders For Large, Wet & Sticky Materials Core Advantages
Structural Design
Exclusive design of the screen shaft and screen disc: We adopt a parabolic screen disc and arrange it in an alternating manner, which increases the space for material disturbance and reduces the adhesion of wet and sticky materials. The screen disc is made of wear-resistant manganese-chromium alloy steel or NM500 wear-resistant steel, which can withstand the strong impact of large chunks of materials and has no risk of deformation or fracture.
Dynamic sieve holes suitable for various particle sizes: The screen shaft rotates to form "dynamic sieve holes", which are different from the traditional static sieve holes. This can avoid the blockage caused by adhered materials and enables small particles to pass through the sieve quickly, while large chunks of materials are smoothly transported under the push of the sieve plate, suitable for different particle size requirements.
Working Principle
Concurrent Rotation for Forced Discharge: Our Wobbler Feeder is equipped with multiple screen shafts, all rotating in the same direction at a constant speed. This causes the materials to move along the screen surface in a wavy pattern. Under the combined effect of the rotational force and gravity, the sticky and wet materials are less likely to adhere to the screen surface, achieving "forced discharge" and avoiding local accumulation.
Uniform Thickness Screening Mechanism: The screen surface is arranged at a small inclination angle, which can form a uniform material layer. This ensures that every part of the material can fully contact the screen surface, eliminating the risk of blockage for large pieces of material and significantly improving the screening efficiency of small particles.
Self-cleaning Device
Comb-like cleaning device: We install a comb-shaped cleaning device made of wear-resistant steel at the lower part of the screen shaft. With an edge design, it can cut through the tangled fiber debris and automatically clean the adhered wet materials on the screen surface.
Self-cleaning feature of screen disc: When the parabolic-shaped screen disc rotates, the wet and sticky materials are lifted and quickly脱离 the screen surface, reducing residue. The cleaning device and the self-cleaning of the screen disc form a "double guarantee", eliminating the need for manual cleaning and ensuring that the screen surface remains unobstructed at all times.
Overload Protection
Dual protection mechanism: When the sieve shaft gets clogged, the nylon rod pin at the mechanical level will automatically cut off the protection for the motor; the overload sensor at the electrical level will monitor the current in real time. Once the threshold is exceeded, it will automatically trigger an alarm and stop the machine, preventing damage to the equipment due to the impact of large pieces of material.
High-strength body structure: Our body is made by welding low-alloy high-strength structural steel, and a wear-resistant lining plate is equipped on the side, further resisting the impact of large pieces of material and extending the overall service life of the equipment.
Environmental Protection And Stability
Fully sealed anti-pollution: The entire machine adopts a sealed design, preventing dust from spilling out, meeting environmental protection standards; at the same time, it avoids the increase in material stickiness due to rainwater and moisture, and is suitable for various working environments such as open areas and workshops.
Low vibration and low noise: During operation, there is no vibration, reducing equipment fatigue damage. The noise level is below 70 dB, ensuring strong stability during long-term operation, and the maintenance frequency is much lower than that of traditional equipment.
Wobbler Feeder Application
- ► Coal Industry: Processing wet coal and coal gangue (with high clay content and block size ≤ 1000mm), suitable for pre-sieving of raw coal in coal preparation plants and screening of open-pit mines, solving the problem of wet coal adhesion and blockage.
- ► Mining Industry: Screening cohesive ores (such as red earth nickel ore, alumina ore), containing clay, with a block size ≤ 1800mm, ensuring the efficient operation of subsequent crushing processes.
- ► Building Materials Industry: Processing construction waste and collapsible sandstones, addressing the pain point of low screening efficiency for sticky and wet materials, and enhancing the production capacity of aggregates.
Wobbler Feeder Key Performance
- ● Processing Capacity: Our single machine processing capacity can reach 300 - 3800t/h, suitable for different scale production demands ranging from small workshops to large mines.
- ● Screening Efficiency: For large blocks of sticky and wet materials, the screening efficiency is ≥ 90%, and the block coal recovery efficiency is over 95%, far exceeding traditional equipment.
- ● Operating Stability: A single machine can operate continuously and stably for over 4600 hours, with a sieve plate service life of ≥ 12000 hours, and the maintenance frequency is significantly lower than that of vibrating screens and other traditional equipment.
The reason why our Wobbler Feeder can be an ideal choice for handling large, sticky and wet materials lies in its full-dimensional adaptation from the structural design to the working principle. The targeted anti-shock structure, anti-blockage dynamic sieve holes, automatic cleaning system, dual overload protection, and environmentally friendly and stable operation characteristics have perfectly addressed many shortcomings of traditional equipment.
If you are troubled by the screening problem of large, sticky and wet materials and want to obtain a customized solution suitable for your specific working conditions, or if you want to know the detailed parameters and selection suggestions of the equipment, please feel free to contact us at any time. Our professional technical team will provide you with one-on-one precise consultation to help your production line break through the efficiency bottleneck and achieve cost reduction and efficiency improvement.
