Working Principle of Disc Granulators Disc granulators, also known as disc granulators or inclined disc granulators, are among the oldest and simplest granulation equipment used in the fertilizer industry. Their core component is a large-diameter circular steel disc, driven by a motor and reducer to rotate around a central axis. The disc surface is inclined at an angle of 40° to 55° to...
Needs Research: The First Step in Customization The core of a customized organic fertilizer production line lies in “tailor-made” solutions—the production line scale, equipment configuration, and process route should all revolve around the user’s specific needs. Before designing the solution, at least three basic questions need to be clarified: How much raw material is processed daily...
Core Functions of Turning: In aerobic composting, turning is not simply moving materials; it performs four key functions: Oxygen Supply—bringing air into the compost pile to maintain the activity of aerobic microorganisms; Temperature Regulation—breaking up high-temperature areas and preventing local temperatures exceeding 70°C from killing the microorganisms; Moisture Removal—evaporating excess...
The Root Cause of Uneven Nutrient Distribution NPK blended fertilizer is the simplest type of compound fertilizer—it’s made by directly mixing basic nitrogen, phosphorus, and potassium granules. However, this “simplicity” brings a core challenge: nutrient stratification. Heavier particles (such as some phosphate fertilizers) tend to settle at the bottom, while smaller particles...
Hard fertilizer particles, such as monoammonium, diammonium, and urea, are common challenges in organic and compound fertilizer production. A high-quality cage crusher is essential to crush these hard materials into uniform powder, ensuring smooth subsequent granulation and improving overall production efficiency. However, selecting the right cage crusher for hard fertilizer particles...
What is a Static Batching System? A multi-bin single-scale static batching system is the most widely used weighing and batching solution in BB fertilizer and NPK blended fertilizer production lines. Simply put, it consists of multiple raw material bins and a high-precision weighing scale hopper, completing the batching process by weighing the materials sequentially. Unlike continuous...
The Value of the Coating Process In organic fertilizer production lines, coating is often the final “finishing touch” after granulation, drying, cooling, and screening. Its task is not to alter the fertilizer’s internal nutrients, but to form a protective film on the granule surface, thereby significantly improving the granules’ appearance, storage properties, and application performance. A...
Main Model Introduction The organic fertilizer granulator series includes various equipment designed for the characteristics of fermented organic materials. The three most common main models are as follows: Disc Granulator: The simplest in structure, consisting of an inclined disc, scraper, and drive unit. The material rotates within the disc, while a suitable amount of water or binder is...
What is an NPK Blender? The NPK blender is a core piece of equipment in BB fertilizer (bulk blended fertilizer) production lines, primarily used for the physical mixing of basic fertilizer granules such as nitrogen, phosphorus, and potassium in a set ratio. Unlike traditional chemical granulation, the blending process does not alter the original chemical composition of the fertilizer; it simply...
Structure and Working Principle: The rotary drum granulator is the most common large-scale granulation equipment in compound fertilizer and organic fertilizer production lines. Its main body is a slightly inclined rotating cylinder with multiple lifting plates distributed along the circumference of the inner wall. During operation, material enters from the higher end of the...