In the field of fertilizer processing and powder forming, the roller extrusion granulator production line relies on its uniqueness The unique dry process technology, high product quality, and significant economic benefits have become the solution for many enterprises to upgrade their production capacity. It is particularly suitable for granulation of organic fertilizers, compound fertilizers, feed additives, and industrial mineral powders, providing solid technical support for large-scale and continuous production.

1、 Core principle: The Art of Mechanical Pressure

The core of roller extrusion granulation technology lies in the use of pure mechanical pressure to achieve intermolecular binding of materials. The main body is composed of two precision machined rollers that rotate synchronously in opposite directions. After pre-processing and adjusting the humidity, the dry powder material is forced into the narrow gap between the two rollers.

Under immense linear pressure ranging from tens to hundreds of tons, the material is instantly compressed, and the air between its particles is expelled. The molecules tightly fit together in plastic deformation and are forced to pass through carefully designed holes on the surface of the rolling mill. At the moment of detachment from the rolling mill, due to elastic recovery, the strip material will naturally fracture, forming short columnar or flattened spherical dense particles. This process does not require external heating and rarely requires the addition of liquid adhesive, making it a purely physical molding process.

2、 Highlight advantages: why is it highly favored?

This kind of independence The unique molding principle endows this production line with a series of advantages Comparable advantages:

Extreme To save energy: Room temperature granulation avoids the high cost of fuel drying in traditional processes, and energy consumption is usually reduced by more than 30% compared to wet granulation, which is in line with the modern concept of green manufacturing.

The finished product has excellent strength Yue: Particles are formed through high-pressure densification, which has high compressive strength and is not easily broken during subsequent packaging, transportation, and bulk application, greatly reducing dust and loss.

Widely applicable: from fibrous organic materials to mineral powders, from temperature sensitive materials to formulas that are difficult to form by bonding, this technology can effectively handle and demonstrate strong material adaptability.

Flexible and controllable process: By replacing rolls with different hole shapes (such as circular, plum blossom, strip) and sizes, the specifications and shapes of finished particles can be quickly changed to meet diverse market demands.

Environmentally friendly: The entire production process has no wastewater or exhaust emissions, and the working environment is clean, meeting strict environmental protection requirements.

3、 System composition: a collaborative combat team

A complete roller extrusion granulator production line is an organic whole that cannot be handled by a single machine. It usually consists of the following key systems working together:

Raw material pretreatment section: including crushers and mixers, ensuring that the raw materials reach the desired fineness, uniform humidity, and consistent formula, which are prerequisites for successful granulation.

Stable feeding system: using spiral feeders and other equipment to ensure a constant and controllable flow rate of materials into the main machine, which is a guarantee The lifeline for ensuring uniform discharge and stable operation of equipment.

Core molding host: The roller extrusion granulator is the "heart" of the entire production line, responsible for the core mission of converting powder into particles.

Particle sorting system: mainly composed of a drum screening machine, its task is to crush and screen the extruded strip material, separate qualified finished products, and automatically return excess fine powder to the front end of the process for re granulation, thereby ensuring The utilization rate of raw materials is almost 100%.

Post processing and packaging of finished products: including belt conveyors, automatic measuring and packaging scales, etc., to achieve automated collection and packaging of finished products.

4、 Process flow: Precise operation with interlocking loops

The process flow logic of the entire production line is clear and high Smooth efficiency: raw material feeding → crushing → uniform mixing and humidity adjustment → quantitative feeding → roller extrusion molding → primary crushing → drum screen grading → qualified particles transported to the finished product warehouse → automatic quantitative packaging. Among them, the screened powder enters the mixing or feeding process again through the return system, forming a high The closed-loop circulation of efficiency has greatly improved production efficiency and economic benefits.

In summary, the roller extrusion granulator production line is a mature system that integrates mechanical precision manufacturing, powder processing, and automation control. For production enterprises that pursue product competitiveness, reduce operating costs, and practice environmental responsibility, investing in such a production line is undoubtedly a strategic choice focused on the future.