Moisture requirements of organic fertilizer production in different stages

2022/10/31

 The process flow of the organic fertilizer production line is based on the organic materials that have undergone high-temperature aerobic fermentation of bacteria as the main material, and the macro and trace elements required by crops such as nitrogen, phosphorus, and potassium are used as additives. It is an organic ecological fertilizer produced by mechanical processing according to chemical or physical production processes.

Different stages of organic fertilizer production have different moisture requirements. Pig, cattle and chicken manure have different requirements for moisture in different process stages. There are two main types of water removal: livestock manure with a moisture content higher than 60%-65%, and the other is a powder fertilizer with a moisture content of 40%-65% in the fermentation process, granulated with a moisture content of 20%-40%, and dried to a moisture content. Less than 15% finished product.

In the organic fertilizer production line, after the crushing and stirring process, the fermented and decomposed materials can be granulated with a water content of 20%-40%, but the processed granules have a high water content. Therefore, in most cases, it needs to be dried with an organic fertilizer dryer after granulation. After drying and cooling, the moisture content of the particles reaches the standard, and the moisture content is less than 10%. For powdered organic fertilizer production lines, the water content can be reduced to less than 15% by aging and other methods after fermentation.

It can be seen from the above that during the processing of the organic fertilizer production line, it is necessary to use the organic fertilizer production equipment for dehumidification. The dehydrator is mainly used to remove water with high water content. The water content of granulation, the dryer reduces the water content to the standard requirements of organic fertilizer, the granular fertilizer from the granulator generally contains 0% to 16% of water, and usually requires dry operation to make the fertilizer water content. National Fertilizer Standard.