When making organic fertilizer, composting of raw materials is the basic process of the complete organic fertilizer production plant. At present, there are three most commonly used methods of making composting organic fertilizer: aerobic composting in grooves, windrow fertilizer turning and composting in vessel. Making composting fertilizer in grooves, you can use wheel type compost turner. Turning windrow fertilizer materials, the windrow turner machine can be very efficient. Then what if you want to compost organic fertilizer in vessel? Which machine can be used? As the leader of fertilizer making machinery, SX can provide you high performance in vessel composting equipment.

How to make composting fertilizer in different ways? 

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SX in vessel organic fertilizer fermentation tank for sale

Our fermentation tank is the specific compost machine used for fast composting of organic fertilizer materials. Compared to the traditional fertilizer turning machine, SX in vessel composting equipment adopts vertical structure design, which saves lots of space of the whole organic fertilizer making plan. To reduce the impact of temperature on the fermentation tank, we equip electric heating device to make sure constant temperature fermentation. It makes the machine work even outside or in cold weather. And the composting can be finished in 7-15 days because of the temperature control system. Besides these, our fermentation tank also has automatic aeration system and deodorization system. They can completely eliminate the bad smell of organic fertilizer materials, then discharging the fertilizer automatically.

Structure of Fertilizer Fermentation Tank

Want to customize parts of the in vessel fermentation tank? Just click. 

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How does the in vessel fermenter work?

At the whole composting process of fermentation tank, fertilizer materials can decompose quickly in 1-2 days after being fed into the machine. Under the action of aerobic bacteria, fertilizer materials can release a lot heat, then the temperature inner the machine can reach up to about 50-65℃. The high temperature can kill pest eggs, glass weeds and make the fermenting bacteria more active. By this way, the fertilizer quality and composting efficiency can be greatly improved. At the same time, with the stirring of mixing blades, the composting can be more evenly.

After 5-7 days of high temperature, the decomposing speed will be slower. Then the temperature can reduce to about 50℃. At last, the fertilizer will discharge automatically. Using our in vessel composting equipment, only one person is needed during the composting process, which reduces you a lot of cost on labor and energy, and also improves the whole fertilizer plant efficiency.

How to make suitable fomula with aerobic bacteria and fertilizer materials?

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In vessel composting for poultry waste

Poultry manure is the commonest raw material when making organic fertilizer. Composting poultry manures in vessel fermentation tank is also the first choice for most people. But animal wastes may have different features, so how to pre-treat different manures when using fermentation tank?

Cattle Dung Composting in Large Scale Vessel Fermenter

Cattle manure has rich proteins and crude fibers. Its texture is the finest in poultry manure, with about 80% moisture content, cow manure decomposes very slow. When fermenting, it releases few heats, naturally composting costs a lot of time. That’s also the reason why cow manure is always regarded as cold fertilizer.

Before composting cow dung, you can add auxiliary materials, such as straw, sawdust, and peanut shells. These materials can adjust moisture content and C/N ratio of cow dung. Adding moderate powdery auxiliary materials into cattle manure until the moisture reduce to about 50%, and the C/N ratio reach to about 23-28, you can start composting. If you want the process more efficient, it’s also feasible to add fermentation bacteria. But when the temperature inner the fermentation tank up to 70℃, you need to stop the machine to prevent the excessive temperature from killing the bacteria.

Cow Manure Fermentation Tank
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Chicken Manure in Vessel Composting

Compared with cow dung, chicken manure has lower fiber content and higher moisture content. In summer, chicken poops moisture content even reaches to about 98%, which makes poor air permeability of chicken manure. To solve this problem, you can also add auxiliary materials. But if you want to dehydrate chicken manure in short time, a solid-liquid separating machine will be helpful. Especially for complete poultry manure disposal factories, dewatering machine is really necessary.

Mixing Plate of Fertilizer Fermentation Tank
Inner Structure of the in Vessel Fermenter
Mixing Shafts of Fermentation Pot

After the moisture content reducing to about 50% by fertilizer dehydrating machine, we recommend you a screening machine to screen out useless materials in chicken dung. Such as feathers, gravels, clods, etc. Screen them out will improve the fertilizer quality even realize pure organic nutrition production.

Click to get whole poultry manure management plan.

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How to get suitable capacity in vessel fermentation tank?

Most fertilizer composting equipment has different models, you can choose the ideal one based on the capacity of your fertilizer making factory. But the in vessel composting equipment is custom, its capacity is between 10-120m³. You can tell us your capacity, and we will customize for you. Besides capacity, if you have any other requirements, such as the feeding and charging port, canopy, heating system, we can also customize the machine for you.

How about the cost of different size fermentation tank? 

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Turnkey in vessel composting equipment design

How to install a high performance organic fertilizer making plan with fermentation tank? In SX we have complete in vessel fertilizer composting production line, there are detailed processes:
Dewatering of raw materials: as mentioned above, dewatering can make the fertilizer materials much easier to ferment and decompose. It’s also the important process to reduce time consumption.
Composting in vessel fermenter: when the moisture content of fertilizer materials reduce to about 50%, you can feed them into the fermentation tank. In only 7-15 days, the materials will decompose completely.

Complete Fertilizer Making Plant Layout

Crushing: to make sure the composted organic fertilizer has uniform particle size, we equipped a crushing machine. It can make crush big fertilizer blocks into powders, make sure the fertilizer quality.
Screening: in case to some fertilizers blocks can’t get even crushing, a screening machine is used for screening out the large blocks. The qualified fertilizers can be conveyed to next process, and the unqualified will be crushed twice.
Packing: after all the processes finishing, you can pack the final fertilizer products into bags by automatic packing scale to make the storage more convenient.

Stirring Teeth Granulator Organic Fertilizer Production Line

As a suggestion, besides the above procedures, you can also make the powdery fertilizer into pellets. Granular fertilizers may have more stable structure and fertility. As for the layout, we will make free design for you, so just contact us and get the inquiry to in vessel composting fertilizer making plan.

    If you have any interest or need of our product, just feel free to send inquiry to us!

    Notes: for a better and efficient quotation, if your raw materials are animal manures, minimum processing capacity shall meet 10 ton per day, and the animal farm scale should as follows:

    • Chicken farm:  ≥200,000 chicken
    • Cow Farm: ≥500 cows
    • Pig Farm:≥1000 pigs

    Detailed calculating methods, click here..

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