Cow manure fermenting organic fertilizer method

First, fermentation
Collect the cow dung cow urine, mix it with hay and rotten silage to make it compost. In the fermentation, the use of a turn-over machine allows the cow dung to be fully fermented, and this can only be done in a timely and even turn. Some places are very dry now, and some places are very wet, which will affect the quality of the fermentation. It is recommended to use a turner.

Fermentation method:
1, plus accessories
In the fresh cow dung, 10%-15% of the total amount of fermented cow manure is added, such as straw and rice bran, to adjust the moisture, aeration and carbon-nitrogen ratio. The ratio of carbon to nitrogen is between 30-40, so that the content of cow dung is included. The water quantity is controlled at about 60%, with a watermark between the fingers but not dripping.

2. Inoculation of the starter
Add 0.04% of the probiotics such as gold probiotics (mix the fermenting agent with 10 times of bran and then add it to the cow dung and mix), mix and transfer to the fermentation tank and stack it in a ladder shape with a width of 2m and a width of 3m. The height is 1.2m, the length is determined according to the length of the site, compacted and sealed, covered with plastic cloth or tarpaulin for anaerobic fermentation. The fermentation time is 15-40 days (depending on the season).

3, turning material (mechanical or manual turning)
In winter and spring, the material is turned over once every 10 days, and once every 5 days in summer and autumn, so that the fermentation temperature of the material is controlled between 55-70 °C. The fermentation temperature can be measured and controlled by a stick digital thermometer. After three times of stacking, the fermentation can be successful.

The characteristics of the process: the mechanical turning operation is highly maneuverable, and the use of strip material piles is beneficial to the water dispersion in the later stage of composting; the requirements for civil engineering are low, no need for supporting fermentation tanks, and it can be piled up outdoors, saving construction investment; the area of ??composting sites needs to be relatively Larger; outdoor composting in the northern region is poorly insulated in winter, the composting cycle needs to be extended or seasonally stopped composting; in the open-air composting, the rainy season pile is susceptible, and it is recommended to cover the shelter.

Second, the ingredients are crushed and mixed
The material used in the composting and the inorganic fertilizers such as N, P, K and other additives and other additives are used in a certain proportion through a material pulverizer and a horizontal mixer to pulverize, mix and mix. The function of this system is to pulverize, mix and mix various materials such as composted materials and NPK inorganic fertilizers and other additives in a certain proportion. According to many years of experience, the equipment supporting suggestions are as follows: the vertical crusher is used to crush the cow manure compost, which is not easy to stick to the wall, is not easy to block, and the multi-layer turbulent chain hammer structure improves the crushing performance; the continuous automatic batching system is suitable for the dynamic measurement of organic fertilizer raw materials. And batching control; the mixing operation is equipped with a two-shaft continuous mixer, which has good sealing performance, and the wet and dry materials are not easy to adhere at the root of the stirring shaft.

Third, granulation
The material is granulated using a new organic fertilizer granulator. The function of the system is to make the granulated ingredients into a granule. The granulation is suitable for flat die granulator, which has the advantages of wide adaptability of raw materials, especially suitable for organic materials, wide requirements for raw material density and raw material moisture, no need for drying of raw materials; large diameter of press rolls, and templates can be used for both sides The material is evenly distributed in the compression chamber, the granulation is stable, the pellet forming rate is high, the appearance of the finished granules is uniform and not easy to be broken; the whole granulation molding process does not add water, and the cost of subsequent granule drying is saved; the fineness of raw material pulverization is not high. Granular raw materials (after composting) generally do not need to be finely pulverized, and small stones can be directly crushed, which is not easy to block the die hole.

Fourth, screening and returning system
The pellets output from the granulation molding system have a certain difference in particle size and require sieving and grading. The rotary sifter selected requires low vibration, low noise, convenient screen change, and is equipped with a screen cleaning device. It is re