3-4T/H Organic Fertilizer Production Line Thailand

Project composition

The specific contents of this organic fertilizer production line in Thailand project are shown in the table below.

Product plan

The organic fertilizer production line in Thailand project product plan is shown in the table below.

List of product quality standards

Limit indicators of heavy metals in organic fertilizers

Production equipment

The main production equipment of this organic fertilizer production line in Thailand project is shown in the table below.

Raw and auxiliary materials and resource energy consumption

The raw and auxiliary materials and resource energy consumption of the organic fertilizer production line in Thailand project are shown in the table below.

Note: All the pig manure used in the production of organic fertilizer in the project comes from local pig farms. No other materials are purchased from outside, and no long-distance transportation is involved.

General layout of the project

The entrance and exit of the plant area of this organic fertilizer production line in Thailand project is located in the northeast corner of the company. The raw material composting workshop is located on the west side of the sewage collection pool, and the processing workshop is located on the east side of the sewage collection pool.

The production equipment is arranged in a straight line, and there is no need to transport back and forth from raw materials to finished products. The office and other public auxiliary equipment, sewage anaerobic treatment equipment, etc. rely on existing equipment. The layout of the project is smooth, and the requirements of hygiene, transportation, safety, and fire protection are met, and the layout of the plant area is reasonable.

Process design

Mixing, composting and fermentation

According to the construction unit, the pig manure is naturally piled and fermented in the fermentation workshop.

 

Principles and conditions of composting fermentation: Composting is a microbiological process that uses bacteria, actinomycetes, fungi and microorganisms widely distributed in nature under appropriate conditions such as ventilation, humidity, pH, porosity, etc. to artificially promote the biochemical transformation of biodegradable organic matter into stable small molecules and humus.

The composting fermentation of this organic fertilizer production line in Thailand project adopts the method of "aerobic composting fermentation". The complete composting process consists of four stages: low temperature, medium temperature, high temperature and cooling.

Regardless of the classification, the composting process has two fermentation processes: main fermentation and post-fermentation. This project has a special fermentation tank in the fermentation workshop. After the ground is hardened and anti-seepage treated, composting can be carried out directly on the workshop floor.

The project fermentation is carried out in the workshop, and the mixed materials are evenly spread in the workshop. In the initial stage of composting for 1 to 3 days, since the oxygen-containing oxygen in the material itself can meet the needs of microorganisms, aerobic microorganisms first decompose perishable substances, and then absorb the carbon/nitrogen nutrients of the decomposed organic matter. Some nutrients are used for bacterial reproduction, and the remaining nutrients are decomposed into carbon dioxide and water, while releasing heat to increase the pile temperature.

When the temperature is between 25 and 45°C, mesophilic microorganisms are relatively active; as the pile temperature continues to rise, when the temperature is between 45 and 65°C, thermophilic microorganisms such as thermophiles and actinomycetes gradually dominate, are decomposed, and humus begins to form. Practice has proved that if the composting temperature is above 60℃ for three days, parasite eggs and pathogens in the material can be killed, achieving the purpose of harmless composting.

The process of gradually increasing the temperature from low temperature to high temperature is the process of harmless composting. The composting is maintained at high temperature (45~65℃) for 10 days, and pathogens, eggs, etc. are all killed. The main fermentation process (including turning the compost) of this project is 15-20 days. After the main fermentation, the moisture content of the material drops to about 32%. This process will produce odorous gases, water vapor, carbon dioxide and other gases.

When the composting temperature rises to above 60℃, turn the compost after 48 hours (but when the temperature exceeds 70℃, turn the compost immediately, and the composting temperature should not exceed 70℃, otherwise it will cause the beneficial microorganisms to dormant or even die). When turning the compost, be sure to turn the compost evenly and thoroughly, and turn the lower layer of materials into the upper part of the pile as much as possible to fully decompose.

The number of turnings depends on the composting process. Generally, the compost can be turned once every 2~5 days to provide oxygen, dissipate heat and make the materials ferment evenly. This organic fertilizer production line in Thailand project uses a compost turning machine. If the material is found to be too dry during fermentation, water should be sprayed in time when turning the compost to ensure smooth fermentation.

The oxygen content of the pile weight is maintained between 5 and 15%. The oxygen content is expressed as ventilation volume. This process will produce odorous gases, water vapor, carbon dioxide and other gases, and mechanical compost turning will produce noise.

On the basis of fermentation, as the compost temperature drops, the mesophilic microorganisms begin to become active again, and the compost enters the secondary fermentation. This period can be called the post-fermentation or aging stage. This is conducive to the decomposition of organic matter that is difficult to decompose into relatively stable organic matter such as humus and amino acids, which greatly improves the fertilizer efficiency.

With the turning of the compost, it can generally be decomposed in 15 to 20 days. The characteristics of mature organic compost are: the temperature of compost naturally drops in the later stage, it no longer attracts flies, it has no odor, the texture is soft, the volume is reduced, it is dark brown or black brown, and the eggs are dead; taking fecal coliform group as the evaluation index, the possibility of pathogenic bacteria is also very small when the fecal coliform value is 0.1~0.01; the moisture content of mature organic fertilizer is less than 30%, and the post-ripening fermentation process is carried out in the workshop.

Fertilizer crushing and screening

The matured fertilizer enters the crusher through a closed conveyor belt for crushing, crushed to a suitable size, and obtains powdered organic fertilizer, which is then conveyed to the screening machine through a closed conveyor belt for screening. The unqualified fertilizer after screening is collected and returned to the crusher for reuse as raw material.

Packaging and storage

The qualified powdered organic fertilizer is transmitted to the automatic packaging machine through a belt conveyor, weighed and packaged, and then stored for sale.

List of supervision and inspection of environmental protection measures

How to build an organic fertilizer granule production line in Thailand?

‌Building an organic fertilizer granule production line in Thailand requires the following steps:

1. ‌Project approval and preparation‌: Cooperate with local consulting companies to handle government approval procedures to ensure investment compliance. Prepare the required materials to ensure a smooth application process‌.
2. ‌Purchase equipment‌: According to the needs of the production line, purchase a full set of equipment for the organic fertilizer production line, including raw material stacking and fermentation equipment, crushers, mixers, fertilizer granulators, dryers, screening machines, packaging machines, etc. ‌
3. ‌On-site construction and management‌: Develop a detailed material use plan and mechanical equipment requirements to ensure smooth construction. Management personnel can be dispatched from the country, but workers should be recruited locally first. ‌
4. ‌The core equipment required for the organic fertilizer granule production line includes‌: ‌Raw material stacking and fermentation equipment‌: Such as trough-type compost turners and ground compost turners, used for stacking and fermentation of raw materials‌. ‌Crusher‌: Vertical crusher and horizontal crusher, used to crush raw materials into appropriate sizes‌.
5. ‌Mixing mixer‌: including vertical mixer, horizontal mixer, etc., used to mix the crushed raw materials evenly.
6. ‌Granulator‌: such as ring die granulator, disc granulator, drum granulator, etc., used to make granules from the mixed raw materials.
7. ‌Dryer‌: drum dryer, used to dry granules.
8. ‌Screening machine‌: drum sieving machine or vibrating sieving machine, used to grade granules. 
9. ‌Packaging machine‌: automatic metering packaging machine, used to package finished products.

‌Supplementary suggestions and precautions‌:

• ‌Understand local regulations‌: Before setting up an organic fertilizer production line in Thailand, you need to understand local investment regulations and policies to ensure project compliance.
• ‌Risk management‌: Consider Thailand's supply chain system, evaluate the supply of materials and equipment, and develop a risk management plan.
• ‌Cultural differences‌: Understand Thailand's business environment and cultural customs to avoid misunderstandings or conflicts caused by cultural differences.

Through the above steps and precautions, you can successfully establish an organic fertilizer pellet production line in Thailand.