Pneumatic conveying solution for citric acid powder
In industries such as food, chemical, and pharmaceuticals, the transportation of citric acid powder often faces issues such as dust pollution, material moisture absorption and caking, pipeline blockages, and inaccurate measurement. Traditional manual feeding is not only inefficient but also leads to harsh working environments, affecting operator health. In addition, the acidity of citric acid poses a risk of corrosion to ordinary equipment, resulting in high maintenance costs and short equipment lifespan. These pain points severely restrict the continuity of production lines and the stability of product quality.
Material Properties: Understand the physical and chemical properties of citric acid powder
Citric acid powder appears as white crystals or granules, is easily soluble in water, and has strong hygroscopicity. In humid environments, it tends to clump and stick to walls; Its acidity (pH value about 2-3) corrosives ordinary metals such as carbon steel. At the same time, the powder particle size is relatively small (usually 80-200 mesh), making it easy to generate dust in the airflow. Therefore, the conveying system must have capabilities such as moisture resistance, anti-clogging, corrosion resistance, and sealed dust removal.
Product Introduction: Citric acid powder pneumatic conveying system equipment
The pneumatic conveying solution provided by Head Powder uses positive or negative pressure dilute/dense phase conveying methods, specially designed according to the characteristics of citric acid. The system consists of a feeding device, delivery pipeline, air source equipment, separation and filtration device, and an automated control system. All components in contact with materials are made of stainless steel 316L or higher grade corrosion-resistant material, with polished inner walls to prevent residue and corrosion. Based on users' on-site production capacity, conveying distance, and spatial layout, we can provide one-on-one customized solutions to achieve fully enclosed, automated conveying from feeding to the terminal.
Product Advantages: Targeted solutions to customer pain points

To address dust pollution issues, the system uses fully enclosed pipeline conveying combined with high-efficiency pulse dust collectors, ensuring no dust emissions on site; For moisture-absorbing clumping, the inner wall of the pipe is smooth and can be equipped with a heat tracing or drying air source to prevent moisture damage to the material; To address blockages, fluidization equalization devices and reasonable pipeline routing design are used to support smooth conveying; To address corrosion risks, all parts in contact with materials are made of acid-resistant materials, with optional anti-corrosion coatings added as needed. In addition, PLC automation control can accurately adjust the conveying volume and automatically link with upstream and downstream processes, reducing manual intervention and improving production efficiency.
Product features

Fully sealed and dust-free transport
The system is fully enclosed from feeding to discharge, combined with negative or positive pressure sealing designs to effectively control dust leakage, improve the working environment, and meet environmental protection requirements.
Corrosion-resistant materials support longevity
The contact material parts use acid-resistant materials such as stainless steel 316L, Hastoy, or PTFE lining, effectively resisting citric acid corrosion and extending equipment service life.
Moisture-proof and clogged design
The inner walls of the pipes are mirror-polished, combined with air drying devices and fluidization elements to prevent material moisture absorption, clumping, and wall adhesion, ensuring smooth transportation.
Intelligent control and relatively accurate measurement
Equipped with PLC and touchscreen control systems, it can monitor conveying pressure, flow, and material level in real time, and supports remote adjustment to achieve more accurate feeding and automated operation.
Product specifications

Conveying capacity
0.5-20t/h, customizable according to customer capacity requirements, suitable for small batch to large-scale production lines.
Conveying distance
The horizontal range can reach 80 meters, and the vertical range can reach 30 meters, with specific designs based on site layout.
Work pressure
Positive pressure system: 0.1-0.6MPa; Negative pressure system: -0.02~-0.08MPa, meeting different working conditions.
Air supply volume
Based on the conveying volume and distance, Roots fans or air compressors are generally installed, with a power range of 5.5-110kW, and optional variable frequency energy-saving modules are available.