The total amount of livestock and poultry manure generated in our country every year exceeds 3 billion tons. If not treated properly, it not only pollutes the environment, but also causes a huge waste of resources. Transforming these wastes into high-quality organic fertilizers can not only solve environmental problems but also create economic value. So, what are the key equipment included in a complete set of organic fertilizer processing equipment for livestock and poultry manure? How to configure production lines of different scales?

The three core links of organic fertilizer production

The processing of organic fertilizers from livestock and poultry manure is mainly divided into three stages: pretreatment, fermentation transformation, and post-treatment. In the pretreatment stage, a solid-liquid separator is required to separate solid and liquid substances in the manure. Spiral extrusion equipment can reduce the moisture content of solid substances to 60% -70%, while inclined screen separators are more suitable for processing high humidity materials such as cow manure. The separated solid material needs to be crushed by a chain or hammer crusher to a thickness of less than 5 millimeters, and then mixed with straw, microbial agents and other auxiliary materials through a dual axis blade mixer to accurately control the carbon nitrogen ratio between 25:1 and 30:1.

The fermentation process directly affects the quality of organic fertilizers, and common equipment includes trough type turntables and high-temperature aerobic fermentation tanks. The trough type flipping machine is suitable for stack fermentation, with a production capacity of 5-30 tons/hour and a fermentation cycle of about 15-20 days; The fully enclosed fermentation tank, through multi-stage temperature control technology, not only shortens the fermentation cycle to 7-10 days, but also reduces energy consumption by 30%, making it particularly suitable for areas with strict environmental requirements. Advanced biological evaporation bed technology combined with solar energy utilization can achieve a daily processing capacity of up to 50 cubic meters per bed.

Differences between Powder and Granular Organic Fertilizer Production Lines

The production line for powdered organic fertilizer follows the core process of "efficient crushing, precise screening, and intelligent packaging". After the forklift feeder achieves automatic feeding, the vertical crusher ensures that the particle size of the raw materials is uniform and adjustable, and the drum screening machine separates coarse and fine particles to ensure the purity of the finished product. Quantitative weighing is completed through a powder packaging machine. This type of production line requires relatively small investment and is suitable for small and medium-sized enterprises that are just starting out.

The production line of granular organic fertilizer is more complex, covering the entire chain of "crushing batching granulation drying packaging". On the basis of the preprocessing unit, it is necessary to add a batching machine to achieve precise proportioning of multiple raw materials, and a horizontal mixer to ensure nutrient balance. The granulation and drying unit is the core, and the granulation rate of the rotary drum granulator can reach over 95%. The disc granulator is more suitable for large-scale continuous production. The supporting rotary dryer has a thermal efficiency of 70%, which can control the moisture content of particles below 12%, and then prevent agglomeration through a drum cooling machine. The coating machine in the post-processing unit can improve the glossiness and moisture resistance of particles, and the intelligent packaging system realizes automated metering and palletizing.

Key points of equipment selection and cost control

Choosing organic fertilizer equipment requires comprehensive consideration of raw material characteristics, production capacity requirements, and site conditions. For small-scale breeding farms, a hand-held flipping machine combined with simple crushing and screening equipment can meet the needs; Medium sized enterprises are recommended to choose tracked flipping machines and semi-automatic packaging systems; Large production lines should be equipped with intelligent fermentation tanks and fully automatic granulation and packaging assembly lines. It is worth noting that the investment in environmental protection equipment cannot be ignored, and the pulse type dust removal system can effectively control dust pollution during the production process.

In terms of cost, the investment in equipment for small-scale powdered organic fertilizer production lines is about 200000 to 500000 yuan, while the investment for medium-sized granular fertilizer production lines is 800000 to 1.5 million yuan. The investment for a 10000 ton production line equipped with intelligent fermentation tanks can reach over 3 million yuan. In actual operation, electricity consumption and labor are the main variable costs, and modern production lines using PLC intelligent control systems can significantly reduce these two expenses.

The transformation from animal manure to high-quality organic fertilizer is not only an environmental protection project, but also a model for resource recycling. With the development of organic agriculture and the increasing demand for environmental protection, mastering scientific organic fertilizer production technology and rational allocation of processing equipment will undoubtedly occupy a favorable position in this green industry. Whether you are a livestock owner or an organic fertilizer entrepreneur, understanding these core equipment and processes will provide important references for your project planning.