Gravity Separation Sand and Stone Powder Machine

Aggregate materialsGravity Separator for Powder SelectionYancheng Yafu Environmental Protection Equipment Co., Ltd. has developed a new type of classifier in response to customers' feedback and requirements, after extensive research by a large number of scientific researchers. It is designed to work with a single unit.Dust collectorOperation, without motor. Significantly reduces the investment and operational costs for customers. Primarily used in dry sand production lines for separating excess stone powder, ensuring the manufactured sand meets national standards.

Product Features:

Easily adjustable with 4 control points—material waterfall, primary air intake, secondary air intake, and output quantity—enabling precise control over airflow and the finished product's powder content.

2. Energy-efficient; previous configuration involved a separator and deduster, but this model is motorless, with the main power consumption in the deduster, allowing for energy savings.

3. Simple structure with minimal contact points of main materials, resulting in low wear and low maintenance costs.

Working Principle:

Aggregate GravitySifterUtilize air flow, gravity, and changes in air stream direction to achieve grading of materials from 0 to 4.75mm.

These units utilize gravity, inertia, centrifugal force, and aerodynamics to classify materials with particle sizes between 0-4.75mm. The feed and primary air enter the classifier from the top and flow downward. The airflow is redirected 120 degrees and carries the fine particles away from the classifier through the blades. Coarse particles, which cannot be redirected with the airflow due to their own gravity, fall to the bottom of the classifier and are then discharged through a valve.

Secondary air blown in from below the blades is forced through the falling particle curtain. These coarse particles, nearly at the classification point, are deflected by the secondary air stream into the vortex of the heart-shaped chamber. Fine particles captured upon entering the classifier and other particles pulled from the vortex are all carried by the exhaust air into the collector (dust collector) for final recovery.

The secondary air throttle valve features a simple manual adjustment function, allowing for the alteration of fine particle gradation. Within the material flow range, there are no moving parts, thus requiring high maintenance standards. For erosive materials, linings are used in certain areas to ensure a longer lifespan for the equipment.

Product Advantages:

Low maintenance and operation costs.

2. Minimize moisture content; cost optimization

3. Expanding additional markets for -200 mesh material.

Canvas BagPulse Dust CollectorBased on the introduction of traditional dust removal technology, this contemporary-level dust collector absorbs the advantages of foreign dust removal technology and is developed and produced for the domestic market. This type of dust collector combines the benefits of separate room backblowing and pulse-jetting dust collectors, overcoming the shortcomings of insufficient kinetic energy during separate room backblowing and the simultaneous operation of pulse-jetting filtering and cleaning. Thanks to the use of high-energy cleaning and offline cleaning with a segmented structure, it features strong cleaning intensity, fast speed, and short cycle time, enhancing the collector's adaptability to usage, improving dust removal efficiency, and extending the service life of the filter bags. The dusted gas concentration of this product fully meets the requirements of the new national environmental protection emission standards (emission concentration: thermal equipment <100mg/Nm³, ventilation equipment <50mg/Nm³).

Application: The fabric pulse dust collector is widely used in industries such as cement, mining, machinery, power, chemical, metallurgy, and steel, and is widely selected.

Product Features:

Reliable performance ensures the dust collector operates stably with the crushing equipment for long periods with minimal maintenance.

2. High adaptability, capable of handling a wide range of dusty gas for dust removal.

3. Special design of the result, fiber filter bags, and component selection ensure that the dust concentration of the gas after dedusting meets national emission standards.

4. Optimized air intake and exhaust duct design for even airflow distribution.

5. Leak-proof design to minimize the air leakage rate of the dust collector bag.

6. Modular design for easy transportation and installation of the equipment, while ensuring manufacturing precision.

7. Low operating costs, optimized process parameter design, conducive to the low resistance and stable operation of the dust collector.

8. Reduced system energy consumption while effectively mitigating filter bag wear and maintenance efforts.

9. Comprehensive series design to meet the dust control needs of various dust sources.

10. Standardized design to reduce the storage of user spare parts.

11. Combined with a gravity inertia classifier, it achieves dust removal and sandstone powder separation simultaneously, offering multi-functional use to reduce investment costs.

Operating Principle:

Dust-laden gas enters the individual ash hopper through the inlet uniform flow pipe of the dust collector. Under the guidance of the ash hopper guiding device, large particles of dust are separated and directly fall into the hopper, while finer dust uniformly enters the middle box and adheres to the outer surface of the filter bags. The clean gas passes through the filter bags into the upper box and is discharged into the atmosphere through various offline valves and exhaust pipes. As the filtration process continues, the accumulated dust on the filter bags increases. When the equipment resistance reaches the specified resistance value (usually set at 1500Pa), the offline valve of one chamber is automatically closed by the ash cleaning control device according to the differential pressure set value or ash cleaning time set value. Then, the electrically controlled pulse valve is opened according to the set program for wind shutdown and blowing. By utilizing the compressed air to instantaneously blow, the internal pressure of the filter bags increases, causing the dust on the bags to be shaken off (even for sticky fine dust) into the hopper, and then discharged by the ash discharge mechanism.