Bio-organic fertilizers rely on functional live bacteria to exert their fertilizer effect. Excessive temperature inside the biology organic fertilizer dryer not only damages product quality but also harms equipment, increases production costs, and causes multiple problems.

The most direct harm is the death of active bacteria due to high temperatures. Beneficial microorganisms generally thrive below 40℃. If the temperature inside the drying machine consistently exceeds 60℃, a large number of nitrogen-fixing bacteria, phosphorus- and potassium-solubilizing bacteria, and Bacillus will die, resulting in substandard bacterial content, loss of biological activity, and a significant decrease in fertilizer effectiveness. This can even prevent the product from meeting bio-organic fertilizer standards, leading to finished product spoilage.

Secondly, it damages the nutritional components of the material. High temperatures cause organic matter in the fertilizer to char, and active substances such as amino acids and humic acid to decompose and be lost. A large amount of nitrogen volatilizes, reducing the fertilizer's nutrient content and causing the material to turn black and charred, making the granules brittle and easily broken, resulting in poor appearance and affecting market sales.

Simultaneously, it accelerates the aging and damage of fertilizer production machine. Sustained high temperatures can cause the cylinder to deform due to heat, welds to crack, and components such as support rollers, thrust rollers, and bearings to experience lubrication failure due to high temperatures, leading to accelerated wear and a significantly shortened service life. High temperatures can also burn the insulation layer and seals, causing air and material leaks, continuously reducing thermal efficiency, and resulting in increasingly higher energy consumption.

Furthermore, high temperatures can pose safety and environmental hazards. Excessive temperatures can easily cause materials to spontaneously combust, posing a fire risk; over-drying results in materials becoming too dry, causing a sharp increase in dust during production, exceeding emission standards for exhaust gases, polluting the environment, and increasing the burden on dust collection systems. Strict temperature control is necessary during production to ensure that materials are dried at a low temperature and at a uniform rate, protecting the activity of microorganisms and the quality of the fertilizer.