I. Product Overview
Under the current trend of modern green agriculture and precision fertilization, simply supplementing inorganic nutrients such as nitrogen, phosphorus, and potassium can no longer fully meet the requirements of soil ecological restoration. Bio-organic fertilizer, a new type of fertilizer that deeply integrates highly efficient beneficial microbial communities with premium organic matter, has become a key product for improving soil quality, suppressing soil-borne diseases, and enhancing agricultural product quality.
As a leading enterprise in the fertilizer machinery industry, Zhengzhou Yizheng Heavy Machinery Equipment Co., Ltd. has launched specialized bio-organic fertilizer production equipment designed for large-scale and standardized fertilizer manufacturing enterprises, based on years of expertise in biological fermentation and composite granulation technologies. The system effectively addresses four major industry challenges: microbial strain deactivation, granulation difficulties, equipment corrosion, and environmental compliance issues.
This equipment system is not merely a combination of mechanical components; it is an intelligent production line that perfectly integrates microbiological characteristics with mechanical engineering dynamics. The production line covers the complete process from aerobic fermentation of raw manure and agricultural waste, deep crushing, precision batching, low-temperature microbial inoculation, composite granulation, ambient-temperature drying, fine screening, to automatic packaging.
Zhengzhou Yizheng’s bio-organic fertilizer manufacturing equipment is specially optimized for temperature-sensitive functional microorganisms such as Bacillus subtilis, Bacillus licheniformis, Bacillus megaterium, and other beneficial strains, ensuring microbial survival rate and biological activity throughout processing and granulation stages.
The equipment adopts industrial-grade anti-corrosion and wear-resistant configurations to meet continuous and intensive production requirements, making it an ideal solution for large livestock enterprises, environmental treatment centers, and high-end fertilizer manufacturers seeking industrial upgrading.
Bio-organic fertilizer production equipment generally includes material handling equipment, fermentation equipment, batching equipment, mixing systems, granulation equipment, drying systems, and screening equipment. The production process mainly consists of the following stages:
Material Processing:
Biomass raw materials are pretreated to remove impurities while adjusting moisture content and carbon-nitrogen ratio to ensure effective fermentation.
Pretreated biomass materials are introduced into fermentation tanks, where microbial inoculants are added for fermentation. Temperature, aeration, mixing, and other parameters are controlled to promote microbial reproduction and decomposition of organic matter.
Fermented organic fertilizer materials are proportionally mixed with other fertilizer ingredients through mixing equipment.
The mixed materials are processed by granulation equipment to form granules suitable for storage and transportation.
Granulated fertilizer particles are dried to reduce moisture content and meet storage and packaging requirements.
Dried particles pass through screening equipment to remove impurities and off-spec materials, ensuring product quality.
Qualified granules are packaged and stored for marketing and application.
II. Working Principle
The operation of bio-organic fertilizer production equipment follows the process logic of “high-temperature aerobic sterilization + low-temperature microbial inoculation + composite granulation.”
The workflow and material transfer process are as follows:
(1) Initial Aerobic Fermentation and Harmless Treatment Principle (Base Material Preparation)
Livestock manure and auxiliary materials such as straw are mixed proportionally and fed into fermentation troughs.
A groove-type compost turner or wheel-type compost turner uses high-speed rotating turning blades to forcibly break up material piles and introduce oxygen.
The principle relies on vigorous metabolic decomposition by aerobic microorganisms under sufficient oxygen supply, releasing heat and increasing pile temperature to 55–70°C over 7–15 days.
This high-temperature process completely eliminates pathogens, parasite eggs, and weed seeds from raw materials.
As turning continues:
- Moisture evaporates
- Materials mature and stabilize
- High-quality organic base material is formed
(2) Semi-Wet Material Crushing and Fine Homogenization Principle
Fermented base materials often contain agglomerates.
Semi-wet material crushers adopt vertical or horizontal structures with high-speed rotating blades that perform continuous impact and shearing.
The physical principle utilizes mechanical kinetic energy generated by high linear velocity to crush organic materials with 25–40% moisture content into powder smaller than 3 mm, establishing a uniform particle size basis for microbial mixing.
(3) Computerized Dynamic Batching and Low-Temperature Microbial Mixing Principle (Critical Process)
Crushed organic materials enter automatic batching systems through conveyors.
At this stage:
-Organic matter and selected inorganic nutrients are precisely measured according to formulas.
-Materials enter a horizontal twin-shaft mixer.
Functional microorganisms (powder or liquid forms) are introduced via dedicated metering pumps or powder feeders.
The twin-shaft counter-rotating paddles create radial and axial cross-flow circulation fields, ensuring microscopic-level uniform distribution of beneficial microorganisms within organic substrates.
(4) Composite Granulation Principle (Core Module)
Mixed materials enter the specialized bio-organic fertilizer granulator.
The equipment integrates:
Stirring Tooth Extrusion + Rotary Drum Polishing
Stage 1 – Stirring Tooth Section:
Materials are subjected to high-speed mechanical forces and intense friction against the drum wall.
Using surface tension under controlled moisture conditions, fine nuclei are formed.
Stage 2 – Drum Section:
These nuclei move into the rotary drum and continuously roll under centrifugal and gravitational forces, absorbing surrounding powders layer by layer.
This process achieves:
-High granulation efficiency
-Excellent particle strength
-Low-temperature processing without damaging microbial activity
(5) Low-Temperature High-Airflow Drying and Stress Cooling Principle
Traditional chemical fertilizer drying uses high-temperature flue gas, which severely reduces microbial viability.
Yizheng’s bio-organic fertilizer technology adopts low-temperature, high-airflow drying inside rotary dryers.
Material temperature is strictly maintained below 60°C.
High airflow velocity and large heat exchange areas remove surface moisture efficiently.
The product then enters cooling equipment where large volumes of cold air perform convective cooling.
Temperature differences generate surface stress that further:
-Solidifies particles
-Increases hardness to approximately 15 N
-Prevents post-packaging caking
(6) Fine Screening and Closed-Loop Recycling Principle
Rotary screening machines separate materials into:
-Oversized particles
-Qualified products
-Fine powders
Qualified products proceed directly to packaging.
Oversized particles are crushed and recycled together with fines back to granulation through automatic return systems.
This creates a closed-loop production cycle with zero material waste discharge.
III. Product Applications
Zhengzhou Yizheng’s bio-organic fertilizer production equipment offers extensive industrial applicability and serves as a foundation for green circular economy development:
Large-Scale Livestock Enterprises
Used for manure treatment in:
-Pig farms
-Poultry farms
-Cattle farms
-Sheep farms
Environmental burdens are transformed into high-value microbial fertilizer products.
Specialized Bio-Fertilizer Manufacturers
Suitable for producing:
-Compound microbial fertilizers
-Soil conditioners
-Carbon-based bio-fertilizers
-Disease-resistant specialty fertilizers
High-Value Crop Cultivation Areas
Customized “organic matter + beneficial microorganism” formulations for:
-Premium fruits
-Vegetables
-Tea plantations
-Medicinal herbs
-Tobacco cultivation
Agricultural Waste Processing Centers
Processes:
-Straw
-Rice husks
-Mushroom residues
-Agricultural biomass wastes
Carbon and beneficial microorganisms are returned to soil for black soil restoration projects.
Industrial Organic By-Product Processing
Treats:
-Distiller’s grains
-Vinegar residues
-Herbal medicine waste
-Sugar mill filter mud
Substantially increases the economic value of industrial by-products.
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IV. Product Features
As an innovation-oriented fertilizer machinery manufacturer, Zhengzhou Yizheng integrates multiple patented technologies into its bio-organic fertilizer equipment.
1. Specialized Low-Temperature Microbial Protection Design
The company has extensively studied microbial heat tolerance limits.
Temperature sensing and control systems are incorporated throughout:
-Mixing
-Granulation
-Drying
-Cooling stages
Optimized dryer structures and large-airflow designs ensure dehydration efficiency while maintaining safe temperatures for microbial survival.
Finished products consistently exceed national viable bacteria standards.
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2. Advanced Composite Granulation Technology
For bio-organic materials characterized by:
-High fiber content
-Low bulk density
-Uneven stickiness
The dedicated granulator achieves:
-Granulation rate above 95%
-Uniform particle size (2.0–4.5 mm adjustable)
-High compressive strength
Suitable for modern mechanized agricultural applications while reducing breakage and dust generation.
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3. Heavy-Duty Industrial Anti-Corrosion Construction
Bio-organic fertilizer environments feature:
-High humidity
-High dust concentration
-Ammonia nitrogen
-Organic acids
Critical contact areas utilize:
-High-grade manganese steel
-304 stainless steel
Applied components include:
-Compost turner blades
-Granulator liners
-Mixer paddles
-Dryer lifting plates
Multi-layer anti-corrosion coatings ensure exceptional oxidation resistance and acid-alkali protection.
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4. PLC Intelligent Central Control System
The production line can be equipped with:
-PLC central control cabinets
-Touch-screen interfaces
Functions include:
-Dynamic batching control
-Drying temperature management
-Real-time monitoring
-Fault diagnosis and warning
The automated dosing system ensures precise ratios among:
-Organic matter
-Inorganic nutrients
-Functional microorganisms
for every production batch.
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5. Fully Enclosed Environmental Design
Dust and odor sources such as:
-Crushing
-Screening
-Packaging
adopt fully enclosed pipelines.
High-efficiency pulse bag dust collectors are installed throughout the system.
For fermentation and drying exhaust gases, the line integrates perfectly with Yizheng’s biological deodorization towers.
This ensures full compliance with environmental regulations and supports construction of modern green demonstration fertilizer plants.
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: May-19-2026