Moisture Content in Organic Fertilizer Granulation
One of the important storage methods of organic fertilizer is that the storage place must be dry to avoid caking due to high humidity and high humidity. So how to use the organic fertilizer granulator equipment to deal with the moisture of chicken manure? Let’s see how to deal with it.
(1) Organic fertilizer dryer: that is to say, we often use organic fertilizer dryer for drying. It uses heat energy to heat the material and vaporize the moisture in the material. A certain amount of heat energy is needed to remove the moisture in the material. Usually, air is used to dry the material.
The air is preheated and sent to the dryer to transfer heat to the material. The moisture in the material is vaporized to form water vapor, which is taken out of the dryer together with the air. The rotary drum granulator granulates the fertilizer, and then heats and dries the material to remove the combined moisture in the material, so as to achieve the required moisture content of the product or raw material.
(2) Solid liquid separator: the mechanical dehydration method is to extrude part of the water by pressurizing the material. Common methods include pressing, precipitation, filtration and centrifugation.
Mechanical dehydration can only remove part of the free moisture in the material, while the combined moisture remains in the material. Therefore, the moisture content of the material after mechanical dehydration is still very high, usually 40-60%. However, mechanical dehydration is an economical method.
(3) Hygroscopic agent: the use of hygroscopic agent to remove a small amount of moisture in gases, liquids and solids. Due to the limited dehumidification capacity of hygroscopic agent, it is only used to remove trace moisture in materials. As a result, it is rarely used in fertilizer production lines.