Pig manure, which is dirty and smelly, is a large amount of feces excreted by pigs during the process of raising pigs. It is a coarse fibrous substance mixed with a large amount of urine and mucus. Pig manure is a type of livestock manure that is not easy to air dry. With the continuous expansion of aquaculture scale in China, intensive farming has brought about the concentration of a large amount of pig manure, which is difficult to handle when piled together. Long term storage not only attracts mosquitoes and flies, but also causes great pollution to the surrounding environment and underground water sources due to the odor. If the problem of pig manure is not solved environmentally, it not only causes increasingly serious environmental pollution, but also has a serious impact on the sustainable development of breeding farms. How to effectively treat and develop pig manure has become a top priority issue for the sustainable development of pig farms.

Practice has proven that using animal manure to produce organic fertilizer is a relatively effective method for large-scale pig farms to design manure free organic fertilizer production lines and workshops, and provide complete sets of pig manure organic fertilizer equipment. Releasing nutrients can kill bacteria and insect eggs, detoxify and deodorize, achieving harmless and resource utilization. The commercial organic fertilizer production line can not only meet the local fertilizer demand, but also meet the demand of surrounding markets.

The working principle of pig manure organic fertilizer granulator: Various dry powder materials are added from the top of the equipment, degassed, spiral pre compressed, and transported to the curved grooves of two rollers. The two rollers rotate at equal speed and in reverse direction, biting the materials into the grooves and performing forced compression. The pressure that the materials bear gradually decreases after passing through the compression zone, and its surface tension and gravity cause them to naturally come out, enter the crusher and the whole granulator for crushing and trimming, Then it enters the vibrating screen for screening, and the qualified products are sent to the finished product warehouse or directly packaged through a conveyor. The materials under the powder screen are sent back to the raw material warehouse for secondary rolling through a feeding device. The size of the squeezing force can be adjusted by the hydraulic system according to the particle strength needs. By changing the groove form of the roller surface, materials such as flakes, strips, olives, and flat balls can be obtained.