Pig manure organic fertilizer fermentation production line technological process

The first step in making organic fertilizer from pig manure is fermentation. Composting fermentation is commonly used in pig manure organic fertilizer production lines. So, what are the complete steps of pig manure composting fermentation?

The pig manure organic fertilizer production line requires two steps to process commercial organic fertilizer: the pre-fermentation and treatment part and the deep processing and granulation part. Biological organic fertilizer equipment requires trough turning and throwing machine, semi-wet material shredder, drum screening machine, horizontal mixer, stirring tooth granulator, rotary dryer, cooling machine, screening machine, coating machine, packaging machine, Conveyor and other equipment.

The early fermentation part of the pig manure organic fertilizer production line process flow: It is necessary to build a fermentation tank with a width of 3 meters x a length of 50 meters (fermentation of more than 200 tons of raw materials), or one machine with multiple tanks, and then the raw materials (dung, biogas residue, straw) Pile in the fermentation tank. 1 kg of decomposing agent is mixed with 20 kg of water and mixed in the raw material pile. 1 kg of decomposing agent can ferment 1 ton of raw materials, which are mixed according to the comparison of raw materials. The fermentation cycle is 7-10 days when the temperature is around 0℃, and it can be completely decomposed by turning over once every 2 days.

The organic fertilizer raw materials are fermented and decomposed, crushed by a semi-wet material pulverizer, and screened through a drum screen. The coarse materials are screened out and then fermented, and the fine materials can be granulated. After the fermented material is blended by a mixer, it passes through an organic fertilizer granulator and then an organic fertilizer dryer for drying. Then it is cooled by a cooler and screened by a drum screening machine. The unqualified products are returned to the mixer, and the qualified products are passed through the coating machine. The powder machine can be used to coat calcium, magnesium, sulfur and other trace elements, and it can be used in storage bins and packaging machines. This is the general process of organic fertilizer production line making organic fertilizer.

The complete process of pig manure composting fermentation:

  1. Ingredients and stockpiles. 1.5 tons of pig manure (about 2.5 tons of fresh manure) plus 1 kg of fertilizer starter, organic fertilizer starter needs to be mixed with rice bran or corn flour and other substitutes in a ratio of 1:5. Sprinkle it evenly into the pig manure pile and mix evenly. Then add straw or mushroom dregs to adjust the carbon-nitrogen ratio. The pile is 0.8-1.5 meters high, 2 meters wide, and the length depends on the site.
  2. Temperature control. The starting temperature should be above 15℃ (it can be operated in four seasons, and it is not affected by the season. Try to ferment indoors or in a greenhouse in winter in the north).
  3. Moisture control. The moisture of the fermented material should be controlled at about 65%. Too high or too low is not conducive to fermentation, too little water, fermentation is slow. Too much water will cause poor ventilation, slow heating, and produce bad smells.

Method for adjusting the moisture content of the material: If the moisture content is too high, add straw, sawdust, mushroom residue, dry soil powder, etc.

Judgment method of whether the moisture is suitable or not: grasp the material tightly-it is advisable to disperse the material when the watermark is seen between the fingers but not dripping.

  1. Use the organic fertilizer production line to control the temperature and ventilation of organic fertilizer. During the process of organic fertilizer fermentation, pay attention to proper oxygen supply and turn over (turn over several times when the temperature rises to 75°C or above), and control the temperature rise to about 65°C. Too high temperature will affect nutrients.
  2. The fermentation is complete. Generally, the fermentation can be completed within a week, the material is dark brown, and the temperature begins to drop to room temperature, indicating that the fermentation is complete. If there are too many auxiliary materials such as sawdust, wood chips, and rice husks, the fermentation time should be extended until fully decomposed.

From the pig manure fermentation process, it can be seen that Tongda Heavy Industries has strict requirements for the use of organic fertilizer production lines to make organic fertilizers. Constantly innovate and increase the content of science and technology, so as to make customers more satisfied.