The ferrosilicon powder pneumatic conveying system is an industrial pneumatic conveying device specifically designed for conveying ferrosilicon powder. Due to its high density, tendency to generate dust, and tendency to agglomerate and block during transportation, ferrosilicon powder requires an efficient and safe conveying system. The following is a detailed introduction to the pneumatic conveying system for silicon iron powder:

The pneumatic conveying system for ferrosilicon powder is usually based on the following two main conveying principles:

Push the silicon iron powder from the feeding point to the destination through compressed air.

Commonly used for long-distance conveying and situations with large conveying volumes.

Advantages: Fast conveying speed, suitable for continuous operation.

Suck the silicon iron powder from the feeding point to the destination through a vacuum pump.

Commonly used in scenarios of shorter distance transportation and multi-point collection.

Advantages: Dust is less likely to leak during transportation, and the environment is cleaner.

Such as silos, hoppers, vibrating feeders, etc., ensure that the silicon iron powder enters the conveying system evenly.

Usually made of wear-resistant materials to cope with the wear resistance of silicon iron powder.

Pipeline design should minimize bends as much as possible to reduce the risk of blockage.

Including air compressors, blowers, or vacuum pumps, providing power for conveying.

Such as cyclone separators or bag filters, used to separate and transport gases from silicon iron powder.

Ensure the recycling of powder materials while avoiding dust pollution.

PLC automation control is used to monitor parameters such as pressure, flow rate, and material level to ensure the stability of the conveying process.

The particle size, density, and flowability of ferrosilicon powder are key parameters in the design.

Prevent the agglomeration or deposition of silicon iron powder during transportation.

Need to balance gas velocity and pressure: too high gas velocity may cause equipment wear, and too low may cause blockage.

The system must ensure good sealing to avoid dust pollution caused by the leakage of silicon iron powder.

Ferrosilicon powder is flammable and requires prevention of explosion risks caused by static electricity or high temperatures.

Anti static measures and safety valves need to be installed in the system.

Efficient conveying: Compared to traditional mechanical conveying, pneumatic conveying has faster speed and smaller footprint.

Environmental Protection: Reduce dust dispersion and improve operating environment.

Flexible layout: The conveying pipeline can be designed according to actual needs, suitable for complex process flows.

Metallurgical industry: Transporting silicon iron powder raw materials for steelmaking.

Chemical industry: used for preparing alloys or other chemical products from silicon iron powder.

Building materials industry: used for conveying additives or modified materials.

The aluminum plant needs to transport silicon iron powder from the raw material warehouse to three melting furnaces, with a long transportation distance and a large vertical lifting height, requiring a large transportation volume and high explosion-proof level, while controlling the oxidation rate of silicon iron powder.

Transportation method: Adopting dense phase positive pressure plug flow transportation, using nitrogen as the transportation medium throughout the process to achieve inert protection and prevent oxygen contact.

Gas source: A combination of high-pressure air compressor and nitrogen generator is used to ensure stable and pure gas source, free of oil and water.

Feeding: Two bin pumps alternate feeding, and a fluidization device is installed at the outlet to prevent blockage of the silicon iron powder bridge.

Transportation pipeline: Made of 316L stainless steel material, coated with ceramic wear-resistant coating on the inner wall, with a large curvature radius of the elbow, and equipped with anti-static bridging at the flange to achieve full anti-static grounding.

Separation and control: A cyclone separator and PTFE coated anti-static bag filter are installed at the end, and the oxygen concentration, pressure, and flow rate are automatically controlled by PLC. In case of abnormalities, the machine will be shut down and nitrogen will be blown.

Safety measures: The system is fully inert and protected, and the oxygen concentration in the pipeline is controlled at a low level; All electrical equipment is explosion-proof, and key equipment such as dust collectors and silos are equipped with explosion-proof plates to prevent the spread of explosions.

High conveying efficiency, no pipeline blockage or leakage, and stable control of silicon iron powder oxidation rate at a low level.

The energy consumption is significantly reduced compared to traditional mechanical transportation, the annual wear rate of pipelines is low, and the operation and maintenance cycle is extended.

The foundry needs to transport silicon iron powder from the batching bin to the feeding ports of five dispersed intermediate frequency furnaces, requiring flexible start stop and dust-free feeding, and adapting to the batching needs of small batches with high frequency.

Transportation method: Adopting dilute phase positive pressure transportation, with nitrogen micro positive pressure protection to prevent air infiltration.
System Configuration

Gas source: Roots blower+nitrogen cylinder group, the gas is precisely filtered and connected to the system.

Feeding: 5 rotary valves (equipped with pneumatic seals) to achieve multi-point quantitative feeding. Each rotary valve outlet is equipped with a Venturi nozzle to enhance the material entrainment effect.

Conveying pipeline: DN80 stainless steel pipeline is used, with branch pipe design. Each feeding port is equipped with a pneumatic switching valve to ensure accurate material distribution.

Safety design: Dust collectors are equipped with explosion-proof plates, electrical equipment is explosion-proof, and combustible dust concentration detectors are installed in the workshop.

Security measures: The system maintains a slight positive pressure throughout the entire process to prevent air infiltration; All equipment should be reliably grounded, and personnel should wear anti-static protective equipment.

Realize simultaneous/time-sharing conveying of 5 workstations, with fast switching response and low feeding dust concentration.

Low equipment failure rate, daily maintenance only requires regular cleaning of filters, suitable for small batch and high-frequency ingredient requirements.

The chemical plant needs to transport silicon iron powder from the bagged feeding station to the reaction kettle, requiring dust-free, explosion-proof, and moisture free materials throughout the process to avoid clumping, suitable for precise feeding scenarios in laboratories and small-scale production.

Transportation method: Negative pressure vacuum transportation, nitrogen sealing, to prevent air from entering the system.

Gas source: oil-free vacuum pump+nitrogen replenishment device to ensure low oxygen concentration during transportation.

Feeding: Closed bag feeding station (equipped with dust removal interface), which quantitatively sucks in silicon iron powder through vacuum feeder to prevent dust from feeding.

Transportation and Separation: A combination of anti-static hose and stainless steel hard tube is used, with a filtering receiver (PTFE anti-static filter bag) at the end to achieve gas-solid separation and high dust recovery rate.

Control: Touch screen+PLC control, real-time monitoring of vacuum degree, oxygen concentration, material level, automatic start stop and blowing.

Safety measures: The entire system is vacuum sealed, and the oxygen concentration is controlled at a low level; All equipment shall be grounded to prevent static electricity and equipped with an emergency nitrogen purge system.

There is no dust leakage during the feeding process, the workshop environment meets the standard, the moisture content of silicon iron powder is stable, and there is no agglomeration phenomenon.

The system has a high degree of automation and can be operated by a single person, suitable for precise feeding scenarios in laboratories and small-scale production.