I. Product Overview
Chicken manure organic fertilizer is a high-quality organic fertilizer, rich in nutrients such as organic matter (25.5%), nitrogen (1.63%), phosphorus (1.54%), and potassium (0.85%). As a fertilizer equipment manufacturer, our double roller extrusion granulator demonstrates unique advantages in chicken manure organic fertilizer production. Combined with polishing, shaping, and fine screening processes, it can produce high-quality granular products.

II. Production Process Flow
Core Process: Raw Material Pretreatment → Fermentation and Composting → Crushing and Screening → Extrusion Granulation → Polishing and Shaping → Fine Screening → Packaging and Warehousing
Key Steps:
Raw Material Pretreatment: Solid-liquid separation of chicken manure, removal of impurities and coarse fibers
Fermentation and Composting: Aerobic fermentation for 7-10 days, temperature controlled at around 65℃
Crushing and Screening: Crushing to 80-100 mesh, screening to remove large impurities
Extrusion Granulation: Roller extrusion granulation to form cylindrical granules
Polishing and Shaping: Polishing with a drum polisher to make the granules round and smooth
Fine Screening: Multi-layer screening to separate granules of different sizes
Packaging and Warehousing: Automatic weighing and packaging, finished product warehousing

III. Application Advantages of Roller Extrusion Granulator
Technical Parameters:
Production Capacity: 1-5 tons/hour
Motor Power: 18.5-55kW
Particle Diameter: 3-8mm
Pelletization Rate: ≥85%

Main Advantages:
Room Temperature Granulation: No drying required, saving energy costs
High Granulation Rate: High particle strength, compressive strength ≥2kg
Easy Operation: Simple structure, low maintenance cost
Environmentally Friendly and Energy-Saving: No waste discharge, meeting environmental protection requirements
Strong Adaptability: Can process raw materials with a moisture content of 20-40%

IV. Polishing and Shaping Process Key Points
Polishing Equipment:
Tumbler polishing machine, speed 15-25r/min
Rubber lining to reduce particle wear
Polishing Time: 5-10 minutes

Process Effects:
Smooth and rounded particle surface, improving marketability
Removal of burrs and sharp edges, reducing transportation losses
Uniform particle density, improving flowability

V. Fine Screening Process
Screening Equipment:
Multi-layer trommel screener, 2-3 layers of screens
Screen mesh size: 2mm, 4mm, 8mm
Screening efficiency ≥95%

Grading standards:
Finished pellets: 3-6mm (≥90%)
Fine powder: <2mm (returned to granulation)
Large pellets: >8mm (reused after crushing)

VI. Production Precautions
Raw material control:
Chicken manure must be fully fermented and decomposed to avoid secondary fermentation.
Moisture content should be controlled at 20-30%; too high a moisture content will cause sticking to the rollers, too low a moisture content will make it difficult to form pellets.
Fineness should be controlled at 80-100 mesh to ensure granulation effect.

Equipment operation:
Adjust the appropriate roller gap to ensure pellet quality.
Control polishing time to avoid over-polishing and nutrient loss.
Regularly check screen wear and replace it in time.

Quality control:
Pellet size 3-6mm, pass rate ≥90%.
Compressive strength ≥2kg to ensure safe transportation and storage.
Organic matter content ≥45%, conforming to NY525. Standard

VII. Product Advantages
Superior Quality:
Round and smooth granules, excellent marketability
Uniform particle size, convenient for mechanized fertilization
Good flowability, no dust pollution

Rich in Nutrients:
High organic matter content, comprehensive and balanced nutrients
Contains abundant microbial flora
Long-lasting fertilizer effect, improves soil structure

Eco-friendly:
Realizes the resource utilization of chicken manure
Reduces environmental pollution
Promotes a circular agricultural economy

Conclusion: The chicken manure roller extrusion granulation technology, combined with polishing, shaping, and fine screening processes, provides an efficient solution for the resource utilization of chicken manure. Through scientific process design and strict quality control, high-quality organic fertilizer products can be produced, meeting the needs of modern agricultural development and achieving a win-win situation for both economic and environmental benefits.