FAQ

The answer depends on the material characteristics. For high-fiber, high-moisture materials, low-speed granulation should be selected, with the rotation speed controlled at 15-20 r/min. This speed range effectively prevents material entanglement, sticking to the wall, and excessively rapid pelleting, ensuring uniform granules and meeting strength standards. For low-fiber, low-moisture materials, the rotation speed can be appropriately increased to 20-30 r/min to improve pelleting efficiency.

What should the tilt angle of a drum granulator be? 3.5° is a common benchmark value. In compound fertilizer, organic fertilizer, and NPK granulation production lines, the installation tilt angle of the drum granulator is usually controlled between 2° and 5°, with 3.5° considered the industry benchmark for general materials.

How to solve dust pollution in fertilizer production? Dust in fertilizer production mainly occurs during raw material crushing, batching and mixing, drying and cooling, and finished product screening...

Why Can't a Large Flow of Water Be Used for Direct Spraying in a Disc Granulator? The Correct Operation Method for Atomized Spraying The water spraying process in a disc granulator is crucial for determining pellet quality, but it must never be done by directly spraying a large flow of water onto the disc surface. This crude practice will severely damage the granulation process and pellet quality, directly leading to production failures.

Liquid fertilizer (Fluid Fertilizer), also known as fluid fertilizer, refers to a liquid product containing one or more nutrients required by crops. Based on the different effective nutrients in the liquid fertilizer, it can be broadly divided into two categories: liquid nitrogen fertilizer and liquid compound fertilizer.

What is the impact of moisture on granulation? Moisture is one of the most sensitive and critical control parameters in fertilizer granulation. Excessive moisture leads to excessively fast granulation speed, larger particle size, and lower strength; insufficient moisture makes it difficult for the material to agglomerate into granules, resulting in excessive powder and a significantly reduced granulation rate.

The granulated material must undergo cooling treatment. The fundamental reason is that freshly dried granules are at a high temperature (typically 60℃–90℃). Direct packaging will cause condensation inside the bag, leading to problems such as granule clumping, powdering, and mold growth.

Approximately what is the footprint of a fertilizer production line? The footprint of a fertilizer production line mainly depends on its annual production capacity, process complexity, and equipment selection.

What is “Disc Granulation” Technology? Disc granulation (also known as disc granulation or pelletizing granulation) is a physical granulation technology that utilizes the combined effects of friction, centrifugal force, and gravity generated by the rotation of a tilted disc, combined with atomized spraying, to gradually bind the powder into rounded granules.

Choosing a fertilizer granulator depends on two main factors: the characteristics of the raw materials and the desired shape of the finished product.

Saline-alkali soils have high pH, high salt content, low organic matter content, and poor physicochemical properties. Fertilizing such soils, if the fertilizer selection or application method is inappropriate, can exacerbate crop damage through a chain reaction of "salt accumulation - intensified alkalization - nutrient inactivation."

Biuret (also known as urea) is a substance with osmotic properties formed by the condensation reaction of urea under high-temperature conditions. In compound fertilizer production, the reaction temperature of mainstream processes such as high-tower granulation, drum granulation, and ammoniation granulation is above 130℃.

Calcium magnesium phosphate fertilizer is an alkaline fertilizer. If mixed with ammonium nitrogen fertilizer, it will cause fertilizer loss through a chain reaction of "alkaline contact with ammonia volatilization - nitrogen escape".