In the mineral processing industry, efficiency and precision are the core factors determining production benefits and product quality. Faced with fine, easily dusty, and easily adherent mineral powder materials, traditional vibrating screening methods suffer from problems such as easy screen clogging, low screening efficiency, high dust pollution, and frequent maintenance.

Based on these issues, we recommend a professional-grade mineral powder screening solution: the high-efficiency rotary screen.

Why choose a rotary screen for mineral powder screening?

Excellent adaptability, easily handling sticky and wet materials

The rotary screen uses a unique rotary screening principle, where materials are continuously tumbled and scattered within the cylinder by the lifting plates. This gentle "tumbling" screening effectively breaks up slightly agglomerated mineral powder and has a natural "self-cleaning" effect on materials with high moisture content, greatly alleviating screen clogging problems and ensuring continuous production.

High Precision and High Efficiency Combined

Through a scientifically designed screen cylinder angle and rotation speed, materials have ample residence time within the cylinder, undergoing multiple and thorough screenings. This "slow and meticulous" approach ensures that every particle of mineral powder finds its proper place, significantly improving screening accuracy and throughput, effectively enhancing product grade and value.

Environmentally Friendly and Low-Consumption, Stable and Reliable Operation

The fully enclosed structural design prevents the escape of mineral powder dust at the source, creating a clean and environmentally friendly working environment. Simultaneously, the drum screen has a simple structure, a single power system, stable operation, low noise, and a failure rate far lower than complex vibrating screening equipment, greatly reducing your subsequent maintenance costs and time.

Long Lifespan and Low Maintenance

The core screening components are made of wear-resistant steel or specially treated with anti-corrosion materials, reinforced against the wear characteristics of mineral powder, ensuring the equipment's durability. The modular design facilitates easy replacement of key components, minimizing downtime losses.

Application Scenarios:

Classification of metallic and non-metallic mineral powders such as iron ore powder, quartz powder, and silica powder.

Particle size control and impurity removal of mineral powder before it enters the furnace.

Fine screening in the tailings recovery and reuse process.

Choosing our rotary drum screen is not just choosing a piece of equipment, but also choosing a trustworthy partner. We are committed to providing you with a full-process service from equipment selection and customized production to installation and commissioning. With professional technology and reliable quality, we help you improve screening efficiency, optimize product quality, and reduce overall operating costs.

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Clean according to the actual situation. The remaining dust particles should be scrubbed with a soft brush first. Special residues should be washed with dilute acetic acid. If it is a metal frame or copper wire mesh test sieve, a special cleaning agent should be used.
The specific steps for cleaning the test sieve are as follows:
1. Turn off the power of the standard inspection sieve.
2. Loosen the fixing nuts at the two corners, remove the upper cover of the test sieve, and remove the sieve frame to be cleaned.
3. Use a vacuum straw and a rag to clean the remaining parts of the standard test sieve.
4. Use compressed air to clean the particles and powder on the screen. If the particles or powder are stuck in the screen holes and cannot come out, you can tap the screen lightly.
5. Install the small hole screen, large hole screen and upper cover in order.
6. Pack up the tools used when cleaning the standard inspection sieve and clean it.
Please note! When cleaning, do not press too hard on the grid to remove stuck particles, nor should you use sharp objects to clear blockages. To prevent the mesh from breaking.

Which screening machine is best for screening sand?

For sand screening, commonly used screening machines include vibrating screens, rotary vibrating screens, trommel screens and linear screens. The following are some commonly used screening machines for sand screening and their characteristics:

Vibrating screen: Vibrating screen is a common and economical and practical screening equipment. It separates the sand on the screen through vibrating motion. The vibrating screen can be suitable for screening medium-sized sand and has the advantages of simple structure, easy maintenance and operation.

Rotary vibrating screen: The rotary vibrating screen is an efficient screening equipment. Under the action of vibration, the sand rotates and vibrates on the screen to achieve separation of coarse and fine particles. The rotary vibrating screen has high screening efficiency, large processing capacity and good screening accuracy, and is suitable for screening fine particles or fine sand.

Trommel screen: A trommel screen is a device that performs screening by rotating screen tubes. The sand is separated and screened in the screen tube through the rotation and tilt of the drum. The drum screen is suitable for screening larger particles of sand and has the advantages of strong processing capacity and simple structure.

Linear screen: Linear screen uses vibration force to screen in a straight direction. It has high screening accuracy, large processing capacity and high efficiency, and is suitable for screening fine particles or fine sand, especially in high-precision screening applications.

Choosing a suitable screening machine depends on factors such as sand particle size, moisture content, screening requirements, and production scale. For general fine sand screening, rotary vibrating screens are usually a better choice, with higher efficiency and screening accuracy. If you are screening larger particles of sand, a trommel screen may be more suitable. Vibrating screens and linear screens can also be considered for use under different circumstances.

It is recommended that when selecting a screening machine, you should comprehensively consider the characteristics of the sand, screening requirements, production needs and economic factors, and consult a professional engineer or supplier to obtain the best screening solution.

The installation requirements for screw conveyors are:
1. 20 days before the installation of the screw machine, the foundation should be well watered. This foundation should ensure sufficient stability of the screw machine during operation.
2. Before installing the screw machine, all parts should be thoroughly counted and various pollutants inside and outside should be cleaned.

3. The adjacent flange surfaces should be connected smoothly and tightly, and the misalignment deviation at the joints on the inner surface of the casing should not exceed 1.4mm.

4. Asbestos rubber plates are allowed to be placed between the casing flanges to adjust the accumulated error in the length of the casing and spiral body.

5. The nominal distance between the outer diameter of the screw and the casing is consistent

6. The suspension bearings of the screw conveyor should be reliably fixed on the lifting ears of the casing, and after connecting with adjacent screws, the screw rotation should be uniform. During installation, adjusting shims can be added between the suspension bearing support and the casing lifting ears to ensure that the coaxiality of the spiral axis meets the requirements

7. When the screw machine is single drive, the tail bearing blind cover should be opened, and the distance from the bearing end face to the blind cover should be measured to be less than 20mm.

8. The coaxiality between the main shaft of the screw machine and the reducer shaft should comply with the provisions of GB1184-80 "Regulations on Shape and Position Tolerances without Individual Tolerance Indications".
9. After the chassis of the screw machine is installed, tighten the foundation bolts.
10. Tighten all connecting bolts to a reliable level.
11. The cover of the screw conveyor should be installed in sequence, with a cover buckle installed at an interval of about 0.5m. The last cover at each overlap of the cover should have a cover buckle installed, and one to two cover buckles should be installed at both ends of the screw conveyor to ensure the sealing of the screw conveyor.
12. The dust collection port, feed port, and discharge port should avoid the overlap between the casing flange and the machine cover, and generally adopt on-site welding

Yes, screw conveyors can be used to convey carbon black powder. Screw conveyors are a common material conveying equipment that conveys materials from one place to another through the rotation of a screw. It is suitable for conveying powdered, granular and bulk materials, including carbon black powder.

The working principle of a screw conveyor is to push or extract materials through a spiral blade. The spiral blade rotates around the central axis and moves the material along a spiral channel. During the conveying process, the spiral blade creates a pushing and stirring action to ensure continuous conveying of the material.

For fine powder materials such as carbon black powder, a properly designed screw conveyor can be selected for conveying. In order to ensure the effectiveness and safety of conveying, the following points need to be considered:

Material selection: Select a material suitable for conveying carbon black powder, usually stainless steel or wear-resistant materials to ensure compatibility and durability with the material.
Spiral shape and size: Select a suitable spiral shape and size according to the characteristics of carbon black powder and conveying requirements. The diameter, pitch and blade shape of the spiral will affect the conveying capacity and efficiency.
Dust prevention measures: Since carbon black powder has high dust-raising properties, appropriate dust prevention measures need to be taken, such as installing sealing devices, closing the conveying lines, etc., to reduce the impact of dust on the environment and operators.
Cleaning and maintenance: Clean the screw conveyor regularly to prevent accumulation and blockage to ensure its normal operation and long-term use

Food materials: Plastic rotary vibrating screens are often used in the food industry to screen powdered or granular food raw materials, such as flour, powdered sugar, starch, grains, dried fruits, spices, etc.
Chemical materials: In the chemical industry, plastic rotary vibrating screens can be used to screen various chemical raw materials, including granular, powdered or liquid materials, such as plastic granules, rubber granules, pigments, dyes, coatings, resins, granular fertilizers, etc.
Pharmaceutical materials: In the pharmaceutical industry, plastic rotary vibrating screens are often used to screen pharmaceutical raw materials, such as powders, pills, tablets, liquid medicines, etc. It can meet the requirements for material purity in the pharmaceutical process and ensure the quality and safety of drugs.
Mining materials: In the mining field, plastic rotary vibrating screens can be used to screen materials such as ore, coal, slag, etc. It can adapt to harsh working environments, has wear resistance and corrosion resistance, and effectively improves screening efficiency.
Building materials: In the construction industry, plastic vibrating screens can be used to screen building materials such as sand, gravel, cement, concrete, etc. It can help remove impurities and ensure the quality of building materials.
It should be noted that according to the specific screening requirements and material characteristics, different screen apertures and screening levels can also be selected to meet materials with different particle sizes and separation requirements. Therefore, the application range of plastic vibrating screens is quite wide and is suitable for material screening processes in multiple industries.