I. Product Overview:
The Organic Fertilizer Sorting Machine is a specialized device designed for the automatic separation and quality grading of organic fertilizer granules, powders, and impurities. By combining mechanical screening, airflow separation, optical recognition, and electrostatic separation technologies, the equipment precisely classifies fertilizer by particle size, removes impurities, and ensures product purity. The result is a clean, uniform, and stable fertilizer product that meets both industrial and agricultural quality standards.
With the rapid advancement of green agriculture and organic farming, product quality requirements in organic fertilizer production have become increasingly stringent. Traditional manual sorting methods suffer from low efficiency and high error rates, making them unsuitable for modern large-scale, automated production lines. The emergence of advanced organic fertilizer sorting machinery has successfully overcome these challenges. It can accurately classify materials based on size, density, and moisture content, significantly enhancing product consistency while reducing energy use and labor costs.
At present, Zhengzhou Yizheng Heavy Machinery Equipment Co., Ltd. has developed a full range of organic fertilizer sorting systems that are widely applied in the production of organic fertilizers, bio-organic fertilizers, organic–inorganic compound fertilizers, animal manure fertilizers, and garden waste-based compost fertilizers. These systems have become essential components in the grading and impurity control stages of fertilizer manufacturing.
II. Working Principle:
The Organic Fertilizer Sorting Machine operates by inducing motion—through vibration, rotation, or airflow—that allows materials to move across screening surfaces for separation and sorting. Different screen meshes and apertures can be selected to achieve desired sorting precision according to production needs.
Depending on structural type and process requirements, the sorting system typically employs four key separation principles: mechanical screening, airflow separation, optical sorting, and electrostatic separation. These can function independently or be integrated into multi-stage hybrid sorting systems.
1.Mechanical Screening Principle
Multi-layer screens or rotating drums are installed within the equipment. When materials enter, the screen body begins to rotate or vibrate, causing the particles to roll and tumble. Smaller particles fall through screen apertures, while larger ones move forward for discharge. By adjusting mesh sizes, automatic classification of different fertilizer grades is achieved. This principle is ideal for granular materials with clear size distinctions.
2.Airflow Separation Principle
For materials containing light organic impurities (such as straw fragments or dust), an airflow separation system is used. Adjusting the air velocity and direction allows lighter impurities to be drawn away while heavier particles fall due to inertia. This method is particularly effective for powdery fertilizers or materials with higher moisture content.
3.Optical Sorting Principle
High-end production lines may integrate photoelectric recognition modules. Using high-speed cameras and spectral imaging sensors, the system scans particles for color, shape, and uniformity, and then removes contaminants or discolored granules via air-jet ejectors. This dramatically enhances product uniformity and visual quality.
4.Electrostatic Separation Principle
In certain organic–inorganic compound fertilizers, particles exhibit differing electrical properties. By applying an electric field, particles carrying opposite charges are automatically separated, resulting in a high-purity output.
The entire sorting process is coordinated through a PLC automated control system, ensuring smooth operation, high screening efficiency, low energy consumption, and compatibility with continuous and remote-controlled production lines.
III. Product Applications:
The Organic Fertilizer Sorting Machine has a wide range of applications across agriculture, environmental protection, and resource recycling industries. Typical applications include:
1.Organic and Bio-Organic Fertilizer Production Lines
Used after granulation, drying, and cooling to separate oversized and undersized particles, ensuring the final fertilizer meets packaging and market specifications.
2.Livestock Manure and Composting Projects
Screens and removes unfermented materials or large impurities from composted organic matter, improving uniformity for subsequent granulation and drying.
3.Garden and Agricultural Waste Recycling
Performs multi-stage screening for mixed materials like leaves, branches, and crushed straw, improving particle uniformity and compost utilization rates.
4.Compound and Inorganic Fertilizer Post-Processing
Conducts final sorting of blended or granulated compound fertilizers, removing broken or agglomerated granules to maintain stable product quality.
5.Environmental and Circular Economy Projects
Applicable to sludge-based fertilizers, biogas residue fertilizers, and kitchen waste compost, enabling efficient waste classification and resource purification.
IV. Product Features:
1.High Sorting Precision and Efficiency
With a combination of multi-layer screens and precision airflow systems, sorting accuracy exceeds 95%. Stable performance is maintained even with variations in material size or moisture content.
2.Compact Structure and Smooth Operation
The frame-type structure ensures balanced weight distribution, resulting in low vibration and noise, and reliable long-term operation under heavy loads.
Integrated Multi-Function Design
3.Combines screening, dust removal, grading, and impurity separation functions within a single unit—reducing total equipment count and space requirements.
4.Easy Maintenance and Long Service Life
All material-contact components are made from wear-resistant steel or stainless steel, offering superior corrosion resistance. The screens, ducts, and fans are designed for quick disassembly and cleaning.
5.Automated Control and Intelligent Monitoring
Features an intelligent electrical control system for automatic start/stop, production monitoring, blockage alarms, and automatic airflow adjustment—enhancing automation and operational safety.
6.Outstanding Energy Efficiency and Environmental Protection
The sealed structure prevents dust leakage, and integrated dust collectors enable clean and environmentally compliant production.
7.Customizable Design Options
Zhengzhou Yizheng Heavy Machinery Equipment Co., Ltd. provides fully customized solutions based on material characteristics, capacity requirements, and plant layout, including screen length, number of layers, drive type, and discharge configuration.
8.Excellent Line Compatibility
The sorting machine integrates seamlessly with granulators, dryers, coolers, and packaging systems, forming a continuous and intelligent production line with optimal operational synergy.
The Organic Fertilizer Sorting Machine serves as a vital piece of equipment in the post-processing stage of fertilizer production, ensuring consistent quality and enhancing product competitiveness. Through precise sorting, intelligent control, and energy-efficient operation, it enables manufacturers to transition from traditional extensive production models to high-quality, standardized, and intelligent manufacturing.
Backed by decades of expertise in fertilizer machinery, Zhengzhou Yizheng Heavy Machinery Equipment Co., Ltd. provides comprehensive organic fertilizer sorting solutions—covering design, installation, commissioning, and technical training—delivering customers a complete one-stop service.
Choosing Yizheng’s sorting equipment means choosing efficiency, reliability, and quality assurance for a modern fertilizer production system.
For more inquiries or more information, please contact:
Sales Department / Tina Tian
+86 – 15538237222
Zhengzhou Yizheng Heavy Machinery Equipment Co., Ltd
Email: tianyaqiong@yz-mac.cn
Website: www.yz-mac.com
Post time: Nov-03-2025