For small-scale pig farms, a manure storage tank of a certain area can be used for composting. There are also small fermentation equipment for small-scale pig farms, but the cost is relatively high and it is generally not recommended. Large-scale pig farms need a larger site to build their own organic fertilizer production line. So, how to choose a suitable pig manure compost turning machine according to the fermentation method?
Strip composting is a common composting fermentation method. The raw materials are piled into strips, and the ventilation pipes are buried underground for intermittent ventilation and oxygen supply. The pile is turned once a day. At present, the fermentation site is 3,200 square meters, the warehouse is 1,000 square meters, there are 12 composting lines, and the annual output of organic fertilizer is designed to be 10,000 tons. The total investment of infrastructure plus pig manure compost turning machine, crushing, screening, packaging equipment, trucks, and forklifts is more than 5 million. To produce 10,000 tons of organic fertilizer, about 20,000 tons of compost raw materials are needed, 5,000 tons of auxiliary materials are removed, and about 15,000 tons of pig manure and urine are processed. Based on this estimate, the daily processing capacity is about 55 tons.
Based on the windrow composting, trough composting has been developed with a higher degree of automation. After adding materials from one end of the trough, the pig manure compost turning machine moves forward 3-4 meters every day. After 20 days, the fermented organic fertilizer is discharged from the other end. The depth and width of the organic fertilizer equipment trough should be designed according to the compost turning machine model. Multiple troughs can share one pig manure compost turning machine. Taking the daily processing capacity of 10-20 tons as an example, the total price of a simple shed plus a compost turning machine is about 500,000-600,000.
The tower fermentation method uses top lifting to feed, turning in the tower, and rapid fermentation through oxygen. It has the advantages of small footprint, closed and odorless, and short fermentation time, but the equipment cost is high, the power consumption is large during operation, and the operating cost is also relatively high.
The above introduces the types of pig manure compost turning machines corresponding to different fermentation methods. If you are interested in pig manure fertilizer production, please contact Huaqiang Heavy Industry.
