Approximately 3.8 billion tons of livestock manure are produced annually in China, which has become the main source of environmental pollution. Proper utilization of feces can lead to better “waste utilization”, and livestock manure treatment equipment is a complete set of equipment for treating feces. Fecal treatment equipment can better dry feces, and can dry fresh feces with a high moisture content of 70-80% through high-temperature drying, disinfection, sterilization, decomposition and other processes to produce pure fecal organic fertilizer with a moisture content of less than 13%. The shape is a granular finished product and does not contain any chemical components, making it an ideal organic fertilizer for farmland.
The rotary drum drying equipment for manure production has made significant breakthroughs and innovations on the basis of the traditional single drum rotary dryer structure. From the perspective of drying mechanism, the exchange between materials and hot air flow is more comprehensive, scientific and reasonable, and all thermal indicators reach a high level. Suitable for drying various raw materials such as clay, gypsum, coal, slag, coal gangue, mixtures, dry mixed mortar, yellow sand, iron powder, etc. It is also suitable for drying raw materials in the production of phosphate and composite fertilizers, as well as various loose materials in industries such as metallurgy and chemical engineering.
The working principle of the rotary drum drying equipment for manure production organic fertilizer:
When the bottom temperature of the organic fertilizer rotary drying equipment in the production of bacterial residue reaches 400 ℃ -800 ℃, the material is fed into the feeding port by the elevator, and under the action of gravity, it is dispersed, crushed, and the dispersion device is uniformly distributed inside the dryer to flow (ensuring the heat exchange effect of the material inside the dryer). Hot gas is generated by the lower hot air furnace and moves from bottom to top, coming into contact with the material. Through various means such as heat conduction, convection, and radiation, heat is transferred to the material, causing the temperature of the material to continuously rise and the moisture to evaporate. Materials that meet the moisture requirements are discharged from the lower outlet, and gas with water vapor is extracted by the fan from the chimney.