The pig manure from the pig farm contains 15% organic matter, the total nutrient content is not high, nitrogen 0.5~0.6%, phosphorus 0.45~0.5%, potassium 0.35~0.45% (specifically subject to local pig manure testing results). Pig manure has a finer texture and a more complex composition. It contains protein, fat, organic acids, cellulose, hemicellulose and inorganic salts. Pig dung contains more nitrogen and has a small carbon-to-nitrogen ratio (14:1). It is generally easily decomposed by microorganisms and releases nutrients that can be absorbed and utilized by crops. It is a good farm manure and a high-quality fertilizer for fertilizing and improving soil. However, most pig farms use water to flush the manure to clean the manure, which makes the production of pig manure accompanied by a large amount of sewage. Therefore, it is necessary to separate the solid and liquid, and the manure can be composted. The manure is fermented, and the aerobic and anaerobic microorganisms contained in the external bacterial agent are used to decompose the organic matter in the pig manure that is not easy to be directly used by the crop into small molecular substances. In other words, the pig manure organic fertilizer production line uses fresh pig manure as raw material and undergoes a series of processing to produce a complete set of production equipment for natural organic pig manure fertilizer. Processing pig manure organic fertilizer requires two steps: the pre-fermentation and treatment part and the further processing and granulation part.
Pig manure bio-organic fertilizer equipment needs fermentation turner, organic fertilizer grinder, drum screener machine, horizontal mixer, disc granulating machine, rotary drying equipment, and so on.
The main substance in pig manure organic fertilizer is organic matter, and pig manure organic fertilizer increases the organic matter content in the soil. Organic matter can improve soil physical, chemical and biological properties and cultivate soil fertility.
The conversion of pig dung into organic fertilizer and microorganisms decompose and convert many organic matter into organic colloids, which greatly increases the ability of the soil to adsorb on the surface. It also produces a lot of sticky substances, which makes the soil particles cemented into a stable aggregate structure, which improves the soil water retention, fertilizer retention, and air permeability performance, as well as the ability to regulate soil temperature.
Pig manure organic fertilizer can also make the microorganisms in the soil multiply, especially many beneficial microorganisms, such as nitrogen-fixing bacteria, ammonifying bacteria, cellulose decomposing bacteria, nitrifying bacteria, etc. Pig manure organic fertilizer contains various active enzymes secreted by the digestive tract of animals and various enzymes produced by microorganisms. After these substances are applied to the soil, the enzyme activity of the soil can be greatly improved.
Making more organic fertilizer from pig manure can improve soil activity and biological reproduction and transformation capacity, thereby improving soil absorption, buffering and stress resistance. Process flow of pig manure organic fertilizer production line:
Pre-fermentation part: It is necessary to build a 3m wide x 50m long fermentation tank that can ferment more than 200 tons of raw materials), or one machine with multiple tanks, and then pile the raw materials (feces, biogas residue, straw and) in the fermentation tank, 1 One kilogram of composting agent is mixed with 20 kilograms of water and mixed in the raw material pile. 1 kilogram of composting agent can ferment 1 ton of raw materials. According to the comparison of raw materials, the fermentation cycle is 7-10 days at a temperature of 70C°.
The organic fertilizer raw materials are fermented and decomposed and crushed by a semi-wet material pulverizer, and then screened through a drum screen. The coarse materials are screened out and then fermented. The fine materials can be granulated, the appearance of the particles is more beautiful, and the granulation rate is higher.
The fermented materials (moisture content at 35%) are blended by a mixer, then passed through an organic fertilizer granulator, then dried by an organic fertilizer dryer, cooled by a cooler, and screened by a drum sieving machine. Back to the mixer, the qualified product can be coated with calcium, magnesium, sulfur and other trace elements in the coating machine by the powder machine, and can be passed through the silo and packaging machine.
The following link will show the more information of the pig dung management. https://www.fertilizerfactorymachine.com/pig-waste-disposal-system/
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