In July 2025, Zhengzhou Huaqiang Heavy Industry Technology Co., Ltd. completed the installation, commissioning, and official operation of a BB fertilizer mixing production line tailored for a Senegalese client. This production line focuses on the core needs of precise formulation and efficient mixing of BB fertilizers (blended fertilizers). With scientific equipment configuration, stable operating performance, and customized design to suit local agricultural production, it provides Senegalese fertilizer producers with a large-scale, standardized solution, marking another example of Chinese agricultural equipment supporting the development of green agriculture in Africa.
Core Configuration and Process System of the Production Line
The entire BB fertilizer mixing production line is built around the core process of “raw material storage – precise delivery – uniform mixing – efficient packaging.” Equipment in each stage works in synergy to fully ensure the precision and stability of BB fertilizer production, adapting to the diverse fertilizer formulation needs of the local area.
Raw Material Storage and Conveying Unit
The raw material storage system is equipped with two types of dedicated silos. The main raw material silo is designed with a 4×2.2 meter size and has 5 compartments, capable of storing major fertilizer raw materials such as nitrogen, phosphorus, and potassium. The total storage capacity meets the needs of continuous 8-hour full-load production. The micronutrient silo is 3×2.2 meter with 3 independent compartments, used to store essential micronutrient additives for crops such as magnesium, zinc, and boron. The compartment isolation design avoids cross-contamination between different raw materials, ensuring the purity of the formula.
The material conveying process uses two different lengths of belt conveyors: 17 meters and 9 meters. The conveyor belts are made of food-grade wear-resistant rubber with a non-slip surface treatment, effectively preventing spillage and deviation during material conveying. The equipment is equipped with a variable frequency speed control system, which can precisely adjust the conveying speed according to the feeding requirements of the subsequent mixing unit, achieving dynamic matching between raw material supply and mixing rhythm. The conveying efficiency is increased by 10% compared to conventional equipment, and energy consumption is reduced by 8%.
Core Mixing Unit
The main mixing unit employs a 2×10-meter large-scale twin-shaft horizontal mixer. This equipment is a core component specifically developed for BB fertilizer production. The impellers feature a spiral staggered layout, with the mixing radius covering the entire inner cavity of the drum, ensuring thorough tumbling and cross-mixing of materials during the mixing process. The mixing speed can be flexibly adjusted within the range of 15-30 r/min, and mixing parameters are optimized for different raw material ratios, ensuring a mixing uniformity error of ≤2% for the main raw materials and trace elements, far exceeding the industry average.
The mixer is equipped with intelligent material level monitoring and automatic feeding control. When the material in the drum reaches the set capacity, the raw material conveying system automatically pauses feeding to prevent material overflow or insufficient mixing. After mixing, materials are quickly discharged through the bottom discharge port, reducing the discharge time to 3 minutes per batch, significantly improving production continuity.
Finished Product Packaging Unit
The production line is equipped with four double-bucket scale pellet packaging machines operating in parallel. This equipment uses gravity-based metering principles, coupled with high-precision sensors, controlling the metering error within ±0.1kg, meeting the precise weight requirements for fertilizer packaging in different regions. The packaging machines support rapid switching between multiple specifications such as 25kg, 40kg, and 50kg. Each machine can package up to 80 bags/hour, and the four machines operating together can achieve a packaging capacity of 320 bags/hour, perfectly matching the mixing output efficiency of the production line.
The packaging machines integrate automatic sewing and conveying functions. After metering and bagging, the materials are directly transported to the finished product stacking area via conveyor belt. The entire process is automated, reducing manual intervention and labor intensity while avoiding material loss during packaging. The material utilization rate in the packaging stage reaches 99.5%.
Core Advantages and Adaptability Design of the Production Line
Modular Layout Optimization: The entire production line adopts a modular design. Equipment spacing and layout are designed to fully consider the space conditions of local Senegalese factories, requiring only 600 square meters of floor space. Each equipment unit can be independently disassembled and relocated, reserving space for future capacity upgrades or site adjustments.
Adaptation to Local Raw Material Characteristics: The mixer blade angle and belt conveyor tilt angle have been optimized to address the particle size, moisture content, and other characteristics of local Senegalese fertilizer raw materials. This prevents raw material agglomeration and blockage or conveyor slippage, ensuring stable operation of the production line under different raw material conditions.
Convenient Operation and Maintenance: All equipment is equipped with a bilingual (Chinese and English) operating interface, along with graphical indicators, facilitating quick learning by local operators. Key components adopt standardized designs, and vulnerable parts are highly interchangeable. The company provides detailed maintenance manuals and spare parts supply services, reducing subsequent equipment maintenance costs.
The successful commissioning of this BB fertilizer mixing production line in Senegal not only provides high-quality fertilizer production equipment for local agricultural production but also demonstrates Huaqiang Heavy Industry’s professional capabilities in customized agricultural equipment R&D and overseas project implementation. In the future, the company will continue to focus on the agricultural production needs of different regions, optimize product design and service solutions, provide more targeted fertilizer production solutions for global customers, and help the agricultural industry achieve high-quality development.
Leveraging Blending for Broader Fertilizer Manufacturing
This BB fertilizer mixing line for Senegal demonstrates Huaqiang Heavy Industry’s expertise in providing modular solutions for precise nutrient formulation. While focused on blending, this project is part of a larger ecosystem of fertilizer granulation processes and advanced fertilizer processing machine technology that supports complete fertilizer manufacturing.
The blended product from this line is a key input for various downstream production paths. For clients looking to produce granulated NPK fertilizers, this blended powder serves as the perfect feedstock for the npk manufacturing process. It can be fed into a roller press granulator production line, where a fertilizer compaction machine performs dry fertilizer granules compaction. Alternatively, for a different product shape, the blend could be processed using a rotary drum granulator or an organic fertilizer disc granulation machine to create uniform granules. Each of these fertilizer granulation processes is a specialized application within the broader fertilizer compaction and shaping technology suite, allowing manufacturers to choose the optimal method to transform blended materials into finished products.
Thus, a blending line is not an endpoint but a flexible foundation upon which producers can build more complex, value-added product portfolios, from bulk blends to coated or granulated fertilizers.