Organic fertilizer granulation production line
Solutions for processing chicken, pig, cow and sheep manure into granular organic fertilizer

Customized Organic Fertilizer Granulation Production Line
With the rapid development of organic agriculture, powdered organic fertiliser is in increasing demand in the market as a high quality soil conditioner and fertilizer. Huaxin Machinery’s powdered organic fertiliser production line solution adopts advanced technology and equipment to ensure the production of highly efficient, environmentally friendly, high-quality powdered organic fertiliser products to meet the needs of modern agricultural production.
Annual Production Capacity of Organic Fertilizer Granulation Production Line
Annual production capacity
Small production line
Annual production capacity of 3000-8000 tons, suitable for small farms or organic fertilizer processing start-ups. The equipment investment is relatively small, the footprint is small, and it can be put into production quickly.
Medium-sized production line
Annual output of 8,000-20,000 tons, suitable for medium-sized enterprises with a certain market base and customer base, with a good balance between production efficiency and product quality. It can stably supply the regional market.
Large-scale production line
Annual output of more than 20,000 tons/year, tailored for large agricultural groups and mature organic fertilizer production enterprises, using highly automated and intelligent technology, with extremely high production efficiency.
Equipment Configuration of Organic Fertilizer Granulation Production Line
Equipment Configuration
Raw material reception and pretreatment area
- Raw material warehouse: According to the type and quantity of raw materials, multiple three-dimensional warehouses are built, such as poultry and livestock manure warehouses, straw warehouses, slag warehouses, etc., with good sealing, moisture-proof and ventilation performance, equipped with accurate material level sensors, real-time monitoring of inventory, and ensuring a stable supply of raw materials.
- Conveying equipment: Including belt conveyors, bucket elevators, etc., to build an efficient conveying network, select appropriate bandwidth and bucket capacity according to the production scale, ensure the smooth flow of raw materials, reduce losses and energy consumption.
- Crusher: For large pieces of raw materials such as straw, equipped with a powerful crusher to crush them into suitable sizes, improve fermentation processing efficiency, and ensure fermentation uniformity.
- Multi-layer vibrating screen: Multi-layer vibrating screen removes impurities such as stones, metals, plastics, etc. in the raw materials to ensure the purity of the raw materials, avoid equipment damage, and ensure product quality.
Compost fermentation area
Trough composting equipment: It consists of a fermentation tank, a compost turner, a ventilation system, etc. The fermentation tank is a reinforced concrete structure. The bottom ventilation pipe ensures uniform air distribution. The compost turner regularly turns the materials to promote fermentation. Through temperature, humidity, oxygen sensors and central control systems, intelligent fermentation control is realized to improve efficiency and quality and shorten the fermentation cycle.
Wave-type fermentation equipment (optional): Suitable for enterprises with spacious sites and limited budgets. The raw materials are piled into strips, ventilated at the bottom, and turned manually or mechanically. Although the control accuracy is slightly lower, it has low investment and simple operation, and can be used as a backup plan to meet specific needs.
Crushing area
Primary pulverizer: The high-power hammer pulverizer is used to initially pulverize the fermented materials. The rotor and hammer are optimized in design and equipped with an adjustable screen. The aperture is selected according to the product particle size to ensure uniform pulverization and prepare for granulation.
Secondary pulverizer (optional): For the high-end market (such as flower and vegetable organic fertilizer), air flow or ultra-fine pulverizer can be selected to refine the material to 80-200 mesh or even finer, improve the nutrient release and absorption effect, and enhance product competitiveness.
Mixing area
Double-shaft paddle mixer: Large double-shaft paddle mixer efficiently mixes materials. The stainless steel paddles are optimized, and the frequency conversion speed regulation accurately controls the speed to ensure that the mixing uniformity is ≥95%, ensuring stable product quality and meeting the requirements of granulation raw materials.
Drum mixer (optional): Suitable for large-scale continuous production. The drum rotates to drive the material to tumble and mix. It has a large single capacity and high efficiency, but the precision is slightly lower. It can be selected or used in combination according to the production scale, formula, and budget to improve the flexibility of the production line.
Granulation area
Disc granulator: It is composed of disc, bracket, transmission and other parts. The stainless steel disc rotates at an angle, and the feed and spray devices work together to control the size and shape of the particles by adjusting the speed, angle, feed and spray volume. It is simple to operate, has a high forming rate, and low energy consumption. It is suitable for a variety of formulas and scales to meet the needs of high-quality granular fertilizers.
Drum granulator: It is composed of a cylinder, a supporting wheel, a baffle wheel, etc. The carbon steel or stainless steel cylinder has an internal lifting plate to enhance the tumbling of the material. After the material enters the cylinder, it is agglomerated into particles by spraying a binder, and the particle quality is controlled by adjusting the parameters. It is suitable for large-scale continuous production with high efficiency, strong adaptability and stable quality.
Drying area
Rotary dryer: It consists of a cylinder, a lifting plate, a transmission, and a heating device. The cylinder is tilted, the lifting plate is optimized, and the heating methods are various (steam, hot air furnace, gas). The degree of drying is controlled by adjusting parameters to ensure that the product moisture is 10%-20%, avoiding the loss of nutrients and the decline of particle quality. It has a large processing capacity, fast drying speed, good effect, strong adaptability, and is suitable for large-scale production.
Flash dryer: Hot air fluidizes and dehydrates the material, and the tail gas is purified and discharged. It has high heat and mass transfer efficiency, fast drying speed, large processing capacity, and ensures the integrity and nutrients of the particles. It is suitable for scenes with high requirements for drying efficiency and quality.
Cooling and screening area
Countercurrent cooler: composed of machine body, cooling fan, and discharging device. Cold air and hot particles flow in opposite directions, quickly cool down to room temperature, and the discharging is uniform and stable. It has good cooling effect, fast speed, low energy consumption, enhances particle stability and water resistance, prevents agglomeration and deterioration, and ensures product quality and performance.
Air-cooled cooler (optional): composed of fan, cooling air duct, and conveying device. It has simple structure, convenient operation, and low investment. It is suitable for small enterprises or occasions with low cooling requirements, meets basic cooling needs, and reduces costs.
Vibrating screen: double-layer or multi-layer stainless steel screen, the aperture is selected according to the specifications of the finished product. Driven by a vibration motor, efficient screening, remove unqualified particles, ensure uniform and complete finished products, and improve the pass rate and market competitiveness.
Bagging area
Automatic quantitative bagging machine: it can quickly adjust the packaging specifications according to the market demand, and the metering accuracy is controlled within ±0.2% to ensure that the weight of each bag of products meets the standard, reduce the error and improve customer satisfaction.
Palletising equipment: the packed products are sent to the palletising area via belt conveyor, and the palletising equipment can be chosen from automatic palletising robot or mechanical palletiser.
Dedusting area
Pulse bag dust collector: Installed in dust-prone links, with a filtration area (100-500 square meters) according to the amount of dust, and a filtration wind speed of 0.8-1.5 meters per minute. High temperature and corrosion resistant bags, pulse jet cleaning, ensure that emissions meet standards (<30 mg/m3), protect the environment and employee health, and establish a corporate image.
Cyclone dust collector (optional): Installed in front of the link with coarse and large dust (such as crushing), using centrifugal force to pre-dust, reduce bag load, improve system stability and life, reduce costs, and reduce pollution and equipment wear.
Production Process of Organic Fertilizer Granulation Production Line
Production process
Raw material receiving and pre-treatment
Organic raw materials are transported to the receiving area, and after inspection and classification, qualified raw materials are transported to the corresponding raw material warehouse through the conveying equipment. Large pieces of raw materials are first crushed and then put into the warehouse, and then output from the warehouse and screened to remove impurities in preparation for fermentation.
Composting
The pretreated raw materials are put into the composting area, enter the composting pool or composting strip, add microbial fermentation agent, ventilate and turn the pile, and adjust the parameters through sensors and central control systems to make the fermentation suitable, the raw materials mature, and obtain high-quality compost raw materials.
Crushing
The fermented materials are transported to the primary crusher to be crushed into small particles, and then enter the secondary crusher to be refined to the required particle size as needed to meet the product fineness requirements.
Mixing
The crushed materials are put into the mixer, and nitrogen, phosphorus, potassium fertilizers, trace elements, biological agents, etc. are added according to the formula. The mixing uniformity is ≥95% to form nutritionally balanced materials, providing stable raw materials for granulation.
Granulation
The mixed materials are put into a disc or drum granulator, and different specifications of granules are made by adjusting the parameters to ensure the granulation rate and quality of the granules to meet market demand.
Drying
The granules are sent to a rotary drum dryer or flash dryer, and the degree of drying is adjusted according to product requirements to ensure that the moisture content meets the standard, and the drying effect and nutritional content of the granules are guaranteed.
Cooling and screening
The dried granules are cooled by a cooling device, and countercurrent or air cooling can be selected to enhance stability. Then they are screened by a vibrating screen to remove unqualified granules to ensure that the finished granules are uniform and complete.
Bagging
The qualified granules are sent to an automatic bagging machine, packaged according to the specification weight, sealed by a sewing bagging machine, and transported and stacked for easy storage and transportation, ensuring efficient and accurate bagging.
Raw Material Type of Organic Fertilizer Granulation Production Line
Raw material type
Livestock manure
Such as chicken manure, pig manure, cow dung, etc., rich in nitrogen, phosphorus, potassium and other large elements and organic matter, is an important raw material for organic fertiliser.
Industrial waste residue
Such as wine lees, vinegar dregs, sugar dregs and marsh residue contain a certain amount of organic matter and nutrients, which can be used as raw materials after proper treatment..
Crop Stover
Stover rich in cellulose, hemicellulose and lignin and other organic constituents, including maize stover, wheat straw and rice straw. It improves soil structure, permeability and water retention.
Green manure crops
Such as purple daffodil, alfalfa, mountain celery, etc., can fix nitrogen in the air, and their aboveground and underground parts are rich in organic matter and nutrients.
Peat soil
Containing a large amount of humic acid and organic matter, it has good water retention and permeability, and can improve soil fertility and buffering properties.
Finished Product Specifications of Organic Fertilizer Granulation Production Line
Finished product specifications
Appearance
The particles are uniform and round, without obvious lumps, impurities and odors. The color varies depending on the raw materials, mostly dark brown to black.
Nutritional content
Organic matter ≥45%, total nitrogen, phosphorus and potassium nutrients (N+P₂O₅+K₂O) ≥5%, containing appropriate trace elements and bioactive substances.
pH value
pH value 5.5 – 8.5, nearly neutral or slightly acidic, beneficial to the growth of most crops and soil microbial activities, improving soil physical and chemical properties.
Moisture content
10% – 20%, prevent particles from caking and deterioration, convenient storage, transportation and fertilization operations, and ensure fertilizer effect and utilization rate.




Schematic Diagram of Production Process of Organic Fertilizer Granulation Production Line
Production process diagram
