EN
"Drum screening bucket" has become a key equipment in site screening operations due to its high efficiency and flexibility. Especially when handling different types of materials, how to scientifically configure the screen plate material and screen hole structure has become an important part of improving engineering efficiency and extending equipment life. For engineering contractors, "selecting the screen plate and screen hole structure of the drum screening bucket according to the material type" not only affects the screening accuracy, but also directly determines the economy of the operation.
PRODUCT ADVANTAGES OF DRUM SCREENING BUCKET
"Drum screening bucket" is a screening attachment installed on the excavator, which mainly drives the material to be separated in the screen hole through the rotation of the drum. Compared with traditional manual or static screening methods, it is more efficient and more accurate, and is particularly suitable for working in mixed environments such as construction waste, humus, slag, etc.
It can be directly connected to the excavator hydraulic system, with flexible matching and suitable for a variety of tonnage models;
The modular structure of the screen plate is easy to replace and adapt to different working conditions;
The screen hole can be customized in different sizes and shapes to achieve "maximum screening efficiency of the drum screening bucket";
The wear-resistant structure design extends the service life and reduces the frequency of daily maintenance.
After the excavator is equipped with the "multi-functional drum screening bucket", its operation scene is expanded from traditional earthwork to screening, sorting, resource recycling and other fields.
REQUIREMENTS OF DIFFERENT MATERIALS FOR THE SIEVE HOLE STRUCTURE
Different material types have different adaptability to the sieve hole structure. The following are several common materials and their corresponding sieve plate recommendations:
Wet soil and humus
This type of material has high viscosity and high water content, which is very easy to cause clogging. It is recommended to use the "circular sieve hole" design and choose a spring steel sieve plate with good elasticity to effectively prevent the material from adhering to the surface of the sieve and improve the screening rate.
By configuring the "drum screening bucket sieve plate structure suitable for wet soil", not only the screening continuity is improved, but also the probability of equipment downtime due to clogging is reduced.
Construction waste and concrete blocks
This type of material has high hardness and high impact force, and is suitable for the use of wear-resistant steel sieve plates with a thickness of more than 8 mm. The sieve holes are preferably "rectangular or square structures", which can ensure strength while improving the pass rate.
In high-intensity operations, the use of "drum screening bucket screen hole design for construction waste" can effectively extend the service life of the screen plate and improve the screening stability.
Slag and coal gangue
This type of material has high density and severe wear. It is recommended to use a "double-layer screen plate structure". The inner layer is supported by a reinforced steel plate, and the outer layer is treated with a high manganese steel or alloy steel mesh surface, which not only enhances the structural strength but also improves the wear resistance.
Reasonable design of "drum screening bucket screen hole type suitable for slag treatment" is the key to ensuring stable operation of long-term operations.
Organic compost and lightweight materials
This type of material has high requirements for particle integrity, and should adopt an "elliptical screen hole" design and use polyurethane flexible screen plates to avoid structural damage caused by excessive shearing.
For agricultural scenarios, the "drum screening bucket screen hole design for agricultural organic materials" can ensure that screening does not damage the fiber structure while ensuring processing efficiency.
SELECTION CRITERIA FOR SIEVE HOLE SIZE
The sieve hole size is a key parameter that affects the screening accuracy and efficiency. It should be reasonably set according to the particle diameter of the target material. Generally, 1.2 to 1.5 times the target particle size can be used as the reference size of the sieve hole. The following are sieve hole size recommendations for common material types:
Soil materials: The recommended sieve hole diameter is between 10 mm and 20 mm, and a circular sieve hole structure is used to help improve screening uniformity and screening efficiency. This design is widely adopted in the "Standard Recommendation for Drum Screening Bucket Sieve Hole Size" and is suitable for urban greening and land improvement projects.
Construction waste: It is suitable to use sieve holes of 30 mm to 60 mm. Square or rectangular structures are usually selected to deal with hard and large-particle materials such as concrete fragments, masonry, etc., to increase screening speed and prevent sieve hole blockage.
Organic compost and agricultural waste: It is recommended to use sieve holes of 15 mm to 25 mm and adopt an elliptical structure. Such a sieve hole design can ensure screening accuracy while avoiding damage to the structure of organic materials, especially for agricultural resource recycling projects.
Slag and gangue materials: It is recommended to use sieve holes of 20 mm to 40 mm, and rectangular holes are the most common. This type of sieve hole is suitable for materials with high particle density and high hardness, which helps to extend the service life of the sieve plate.
By reasonably designing the "drum screening bucket sieve hole structure", the material separation effect can be improved according to specific engineering needs, while optimizing the operating efficiency and use cost of the accessories.
SIEVE PLATE MATERIAL AND SERVICE LIFE
Different operating environments have different requirements for the wear resistance of sieve plates. Commonly used materials include:
High manganese steel: suitable for large-size and high-strength materials, such as crushed stone and concrete;
Spring steel: suitable for wet and sticky soil, with good elasticity and anti-blocking performance;
Polyurethane: mostly used for lightweight and brittle organic matter, with good flexibility and strong self-cleaning ability;
Alloy wear-resistant steel: suitable for scenes with severe wear such as coal slag and slag, extending the life of the sieve plate.
In a high-frequency operating environment, the "drum screening bucket sieve plate material selection" will directly affect the maintenance frequency and investment cost of the equipment.
TECHNICAL MAINTENANCE AND KEY POINTS FOR SCREEN PLATE REPLACEMENT
In order to ensure the "screening efficiency of the drum screening bucket" and the accuracy of the screen holes, the screen plate structure and installation should be checked regularly:
Cleaning the screen holes: After the operation is completed, the screen holes should be cleaned with high-pressure water or air flow to prevent the material from drying out;
Screen plate inspection: A comprehensive inspection is required every 500 hours of operation to check whether there are cracks or wear-through;
Regular tightening: Loose bolts will cause the screen plate to deviate, and it must be reset and tightened regularly;
Replacement cycle: For the "drum screening bucket screen plate suitable for high-load operations", it is recommended to replace it every 1000 hours according to the material wear coefficient.
During the maintenance process, combined with the "drum screening bucket maintenance skills", the service life of the accessories can be significantly extended and the downtime loss caused by failures can be reduced.
SELECT THE SCREEN PLATE CONFIGURATION ACCORDING TO THE CONSTRUCTION PROJECT
Choosing the screen hole structure according to the specific project requirements can maximize work efficiency. For example:
Soil improvement project: choose circular sieve hole + spring steel sieve plate;
Demolition waste separation project: use thick steel plate + square large hole;
Agricultural composting project: use flexible sieve plate + elliptical hole design;
Mineral mining project: configure high manganese steel + porous rectangular structure.
Scientific configuration ideas can make the "multi-functional drum screening bucket accessories" better integrated into on-site operations, improve construction efficiency and save costs.
With the continuous improvement of the requirements for engineering efficiency and resource recycling in the construction, agriculture, environmental protection and other industries, "selecting the sieve plate and sieve hole structure of the drum screening bucket according to the material type" has become an important topic of construction management. By accurately identifying the characteristics of the material and reasonably matching the sieve hole size and material, it can not only improve the efficiency of the screening operation, but also extend the life of the equipment and reduce maintenance costs.
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