The Introduction

Pig breeding is an important part of China's agriculture, but the problem of handling a large amount of pig manure has become increasingly prominent. If not handled properly, pig manure not only causes environmental pollution, but may also pose a health threat to farm staff. Fortunately, through scientific treatment methods, pig manure can be converted into valuable organic fertilizer, which not only solves the pollution problem, but also realizes the recycling of resources. This article will describe in detail how pig manure is converted into organic fertilizer and the machinery and equipment required.

Feasibility of converting pig manure into organic fertilizer

Pig manure is a waste rich in organic matter, which can be converted into high-quality organic fertilizers after proper treatment. Pig manure contains a large amount of nitrogen, phosphorus, potassium and other nutrients, which are essential for plant growth. In addition, pig manure also contains a rich microbial community, which can decompose organic matter and produce heat and carbon dioxide during fermentation, achieving the effect of disinfection and sterilization. Therefore, it is completely feasible to convert pig manure into organic fertilizer.

Method of converting pig manure into organic fertilizer

Composting Method:

The pig manure was mixed evenly with organic materials such as straw and rice husk in a certain proportion.

Stacked in a ventilated, dry place for aerobic fermentation.

Turn the pile regularly to facilitate oxygen entry and heat release, speeding up the fermentation process.

After a period of time (usually a few months), pig manure will be converted into decomposed organic fertilizer.

Digester method:

Pig manure was mixed with water and put into a digester for anaerobic fermentation.
In this process, microorganisms decompose organic matter to produce biogas and biogas residue.

Biogas can be used for electricity generation or domestic gas, while biogas residue can be used as organic fertilizer.

Biological fermentation method:

Use professional microbial agents to accelerate the fermentation process of pig manure.

After the bacteria agent and pig manure were mixed evenly, sealed fermentation was carried out.
This method can shorten the fermentation time and improve the quality of organic fertilizer.

Required machinery and equipment

In order to efficiently convert pig manure into organic fertilizer, a series of professional machinery and equipment need to be used. Here are some of the main equipment introductions:

Fermentation and stacking machine:

It is used to turn the pile regularly to ensure sufficient oxygen inside the pig manure pile and promote the fermentation process.

There are trough type and crawler type (Windrow Compost Turning Machine) and other types, can be selected according to the site and demand.



Organic Fertilizer Crusher:

The large debris and stones in the fermented organic fertilizer are crushed to improve the quality of the fertilizer.

Rotary Screening Machine:

The crushed organic fertilizer was screened to remove impurities and ensure the purity of the fertilizer.

Double Shafts Paddles Mixer:



The organic fertilizer after screening and crushing is stirred and mixed to ensure stable product quality.

At the same time, it can be used to add other fertilizers and trace elements, and produce special fertilizer or compound fertilizer.

Disc Granulator:



The evenly mixed materials were pelleted to make granular organic fertilizer.

Rotary Dryer Machine:

The finished particles are dried to remove excess water and increase the strength of the particles for easy storage and transportation.

Rotary Cooler Machine:

The dried particles were cooled to prevent clumping.

Rotary Screening Machine:

The cooled particles were graded and screened to select qualified finished products.

Enveloping machine:

The qualified particles were coated to increase their brightness and roundness.

Packing machine:

The encapsulated organic fertilizer particles are bagged for easy storage and sale.

Conveying machine:

It is used for conveying materials between different processes to improve production efficiency.

Conclusion

The conversion of pig manure from pig farms into organic fertilizer not only solves the problem of environmental pollution, but also realizes the recycling of resources. By using scientific treatment methods and professional machinery and equipment, high quality organic fertilizer can be produced efficiently. This will not only help improve soil quality and plant growth, but also bring additional economic benefits to the farm. Therefore, pig farms should actively promote the production and application of pig manure organic fertilizer.