Compound fertilizer

Tongli Disc granulator

Tongli disc granulator is an efficient pellet production equipment widely used in fertilizer manufacturing industry. Its main features include flexible structural design and efficient granulation capacity. The diameter of the granulation disc of the standard model is usually between 1.5 meters and 3 meters, and the inclination angle can be adjusted according to production needs to control the size and uniformity of the pellets. The typical production capacity is 1 to 5 tons per hour, depending on the material properties and equipment adjustment. The wet disc granulator is particularly suitable for the process of adding liquid binder to enhance the density and strength of the pellets. The special model for organic fertilizer adopts corrosion-resistant materials and is suitable for processing organic materials such as livestock and poultry manure. In practical application, the disc granulator has low energy consumption and is easy to maintain.

pan disc granulator product product main picture 1

TONGLI Disc granulator

A MACHINE YOU CAN DEPEND ON!

Tongli granulating disc adopts an integral arc structure, and the granulation rate can reach more than 93%. The granulating disc is equipped with three discharge ports, which is convenient for intermittent production operations. The structure is new, novel and reasonable, the weight is reduced, the height is reduced, and the unique unpowered combined scraper integration is adopted to reduce the auxiliary power consumption. The large disc consists of a disc body and a disc section. Reduce the power of the main motor. The disc section can be adjusted up and down along the disc body. The end of the disc section is a side flange, which can ensure that the ball is not pulled or torn when the ball is discharged from the disc

Adjustable scraper system

The scraper system of the disc granulator is uniquely designed and can be adjusted according to the characteristics of different materials. It can effectively prevent the material from accumulating in the disc and ensure the smoothness of the particle formation process.



High-efficiency spray system

Equipped with a multi-point spray device, it can evenly spray the adhesive and improve the efficiency of particle forming. The spray coverage area reaches more than 80%, which increases the production capacity to 15 tons per hour, adapts to high-load production requirements, and ensures uniform particles.

New dredging design

The disc granulator uses an unpowered combined scraper to clean the edges and bottom, and a corner scraper to clean the disc corner. With the unique disc body processing technology, the dredging and balling effects are good, and there will be no large mud balls. The diameter of the ball is 90% between 3-5mm

Disc Diameter (m)Production Capacity (t/h)Rev. (r/min)Motor ModelPower (kW)
Ø2.22.5~313.3Y132M-47.5
Ø2.53~413.3Y132M-47.5
Ø3.04~4.511Y160M-411
Ø3.210~1211.2Y160M-411
Ø3.612~1311.2Y180M-411
Ø4.213~1414.75Y200L-430
Ø5.015-258.3Y225M-445
Ø5.535-467.1Y280M-490
Ø6.045-607.1Y280M-490

FAQ

1. What is the working principle of a disc granulator in fertilizer production?

A disc granulator transforms powdered materials into granules for enhanced usability and stability in fertilizer production. The material enters the rotating inclined disc, where centrifugal and friction forces, aided by binders and water, gradually form spherical granules.

The disc's inclination is typically set between 40° to 55°, ensuring material gradually shapes under the balance of gravity and centrifugal force. By adjusting the rotation speed (usually 5 to 20 RPM), you can control granule size and uniformity.

This method is simple and efficient, suitable for large-scale fertilizer production, capable of handling materials with varying compositions and moisture levels, making it ideal for manufacturing nitrogen, phosphate, and compound fertilizers.

2.What materials are suitable for processing with a disc granulator?

Disc granulators can handle a variety of materials, including fertilizers like urea and diammonium phosphate, ores, and coal powder. Their design allows the processing of materials with different viscosities and moisture content, making them widely used in chemical, agricultural, and mining industries.

The strong adaptability of disc granulators is a major advantage, enabling effective operation under various production conditions, providing high yield and granule uniformity.

By selecting the appropriate equipment model and parameter settings, they can handle specific material characteristics, ensuring stability and efficiency in production.

3. What advantages does using a disc granulator in fertilizer production offer?

The advantages of disc granulators in fertilizer production include low cost, simple structure, easy operation, and strong adaptability. Their design makes the granule formation process efficient and easy to control, allowing the production of granules in different specifications to meet market demands.

Compared to other granulation equipment, disc granulators have lower investment costs and are easy to maintain, suitable for small to medium-sized fertilizer enterprises.

By adjusting the disc angle and rotation speed, they can flexibly adapt to the production of various fertilizer formulas. Additionally, their high yield and stability help improve fertilizer quality, enhancing crop yield and effectiveness, making them an ideal choice for large-scale chemical fertilizer production.

4. What causes uneven fertilizer granules, and how can it be resolved?

Uneven fertilizer granules can be caused by factors like inconsistent feeding, improper binder usage, or incorrect equipment parameter settings. Solutions include ensuring uniform feeding and adjusting the disc angle and rotation speed to optimize the granule formation process.

Selecting the appropriate binder and controlling moisture content are also crucial measures to improve granule uniformity. Maintenance and adjustments of the equipment are equally important; regularly inspect and adjust the drive system, scraper position, and disc angle to ensure optimal operation.

Through systematic production process analysis and adjustments, companies can improve product quality to meet market and agricultural demands.

5. What are the moisture requirements for raw materials in a disc granulator?

Disc granulators have strict requirements for the moisture content of raw materials, typically between 5% and 15%. Excessive moisture can lead to poor granule cohesion, affecting the final product quality, while too little moisture may prevent granule formation, impacting production efficiency and yield.

During production, moisture content needs to be adjusted based on specific fertilizer formulas and granulation conditions. By testing the impact of different moisture levels on granule quality, companies can determine the optimal moisture range to ensure the granules have high strength and uniformity.

Maintaining appropriate moisture levels also enhances the effectiveness and market competitiveness of the fertilizer, meeting customer quality requirements. Regularly testing and adjusting moisture content is crucial for ensuring the efficient operation of disc granulators and stable product quality.

6. How can the lifespan of a disc granulator be extended?

To extend the lifespan of a disc granulator, regular maintenance and proper operation are essential. Start by routinely inspecting and cleaning the equipment to prevent material buildup that could cause blockage or wear.

Ensure that all moving parts are adequately lubricated to reduce friction and wear, which helps maintain smooth operation. Regularly check the alignment and calibration of components to ensure consistent granule quality.

Additionally, it's important to monitor and maintain the correct settings for disc inclination and rotation speed. Proper training for operators can also prevent misuse and potential damage, ensuring the granulator functions efficiently for a longer period.

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