Organic fertilizer screening machine

I. Product Overview:

The organic fertilizer screening machine is a key piece of equipment used in fertilizer production lines for classifying, impurity removal, and particle screening. It effectively separates qualified granules from oversized or undersized particles, ensuring uniform particle size, consistent appearance, and stable quality—an essential process for improving the commercial value of organic fertilizers.

This equipment is designed around the principles of high efficiency, low energy consumption, structural stability, and easy maintenance, making it widely applicable to the screening and classification stages of*organic fertilizer, compound fertilizer, bio-organic fertilizer, and organic–inorganic compound fertilizer production.

In the organic fertilizer production process—after fermentation, crushing, mixing, granulation, drying, and cooling—finished granules may still contain a certain proportion of non-conforming particles. At this stage, the screening machine plays a critical role: it efficiently removes oversized or undersized granules and ensures that only standard-compliant, high-quality products proceed to packaging and sale.

Modern organic fertilizer screening machines are optimized in structure, drive configuration, and vibration control. They can be customized in size and screen layer configuration according to material characteristics and production scale, meeting the diverse needs of both medium- and large-scale fertilizer plants.

II. Working Principle:

The core principle of the organic fertilizer screening machine lies in using **mechanical vibration or rotational motion** to cause the material to continuously tumble, roll, or slide on the screen surface, allowing particles to be automatically classified through sieves of different apertures.

The main structural types include drum-type (trommel) screens and vibrating screens.

1. Drum-Type Screening Machine:

The drum screen consists of a cylindrical body, transmission system, support structure, and discharge outlets. The drum is installed at an inclined angle and driven to rotate slowly by a motor through a reducer. As materials enter the drum, they tumble and slide with the rotation. Fine particles pass through the mesh openings, while larger particles travel forward along the drum’s inner wall and are discharged separately. This enables continuous, clog-free material classification and stable screening performance.

2. Vibrating Screening Machine:

The vibrating screen uses a vibration motor as the excitation source. The eccentric weights generate compound vibration forces that cause the screen surface to vibrate periodically, propelling materials to move and jump along the mesh. Fine particles fall through to lower layers, while larger ones continue along the upper layer for precise classification. Vibrating screens are ideal for fine or low-moisture materials, offering high precision and fast processing.

3. Screening Process Control:

Screening efficiency is influenced by factors such as mesh size, amplitude, inclination angle, and material moisture. Modern organic fertilizer screens are often equipped with **variable frequency control systems**, which automatically adjust rotation speed or vibration amplitude based on material properties to balance efficiency and quality.

III. Product Applications:

The organic fertilizer screening machine is extensively used across the entire fertilizer processing industry, with typical applications including:

1. Organic Fertilizer Production Lines:

For screening granulated and dried products after fermentation, removing unformed or oversized particles, and enhancing the appearance and uniformity of finished fertilizers.

2. Compound and Bio-Organic Fertilizer Production:

Suitable for diverse formulations and feedstocks such as animal manure, crop straw, kitchen waste, municipal sludge, humic acid, and organic mineral powder.

3. Agricultural Waste Recycling Projects:

Used in organic waste recycling lines to screen compost granules or soil conditioners.

4. Extended Use in Chemical and Feed Industries:

Beyond fertilizers, the equipment is also used for screening chemical fertilizer granules, feed pellets, coal powder, and granular building materials, demonstrating strong cross-industry adaptability.

IV. Product Features:

1. High Screening Efficiency

Scientifically engineered drum structure and optimized mesh design ensure sufficient material retention and tumbling time, achieving a screening efficiency of over 90%.

2. Stable and Reliable Operation

The drum is made of thick steel plates, supported by rubber rollers and an optimized drive system, minimizing vibration and noise while ensuring long-term durability.

3. Low Clogging Rate and Easy Maintenance

With well-spaced mesh apertures and built-in automatic cleaning devices, the screen prevents clogging from sticky or moist materials. Its modular design allows for easy disassembly and extended maintenance intervals.

4. Strong Material Adaptability

Customizable screen size, drum inclination, and rotation speed enable adaptability to high-moisture, high-fiber, or mixed-particle materials.

5. Energy-Saving and Environmentally Friendly

Fully enclosed design prevents dust leakage. The low-energy drive system supports high-efficiency motors and variable frequency control, meeting modern environmental standards.

6. High Automation Level

The screening unit can be seamlessly integrated with upstream cooling and downstream packaging systems, enabling continuous automated production and reducing manual intervention.

7. Durable Structural Design

The drum and support structures are made of wear-resistant steel, with key components treated for corrosion resistance, ensuring reliable operation even in humid or corrosive environments.

The organic fertilizer screening machine serves as the “quality gatekeeper” of the production line—an essential device for enhancing fertilizer brand image and market competitiveness. With its high screening precision, robust construction, and intelligent control system, it occupies a core position in modern fertilizer manufacturing. For enterprises pursuing high-quality fertilizer production and automation, selecting the right model of organic fertilizer screening machine directly influences overall production efficiency and product standardization.

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