How to Establish a BB Fertilizer Production Line

Establishing a BB fertilizer (blended fertilizer) production line requires following a scientific process, balancing production efficiency and product quality. The core can be divided into five key stages.

First is preliminary planning and qualification acquisition. The plant area needs to be determined based on the target production capacity (e.g., 50,000 tons/year or 100,000 tons/year). Generally, small and medium-sized production lines require 5-10 acres of land. The site must be far from residential areas and meet environmental protection requirements. Simultaneously, qualifications such as a "Fertilizer Production License" and a "Business License" are required. In some areas, environmental impact assessment approval is also necessary to ensure compliant operation.

Second is the selection of core equipment. The core equipment of the production line includes four main modules: raw material silo, batching system, BB fertilizer blender, and packaging machine. The raw material silos need to be zoned according to the different characteristics of raw materials such as nitrogen, phosphorus, and potassium, and equipped with moisture-proof devices; the automatic batching systems should be electronic metering devices with an accuracy of 0.1% to ensure accurate proportions; the BB fertilizer blender is the core of the mixing process, effectively solving the stratification problem caused by large differences in raw material density, and the mixing uniformity should reach over 95%; the packaging machine is recommended to use an automatic quantitative packaging system to improve efficiency and reduce errors.

The third stage is the production process design. A typical process is: raw material pretreatment (crushing, sieving) → automatic batching (precise addition according to the formula ratio) → efficient mixing (thoroughly mixing the raw materials) → finished product sieving (removing lumps) → quantitative packaging (common 25kg or 50kg specifications) → finished product storage. The process design should focus on the sealing of material conveying to avoid dust contamination.

The construction of a quality control system is equally crucial. A dedicated testing laboratory needs to be established, equipped with equipment such as moisture analyzers and nutrient analyzers. Each batch of raw materials should be tested, and finished products should be sampled at least once every 50 tons. Special attention should be paid to verifying the nutrient uniformity after mixing in the BB fertilizer mixer, ensuring that deviations meet the requirements of GB/T 21633-2020 standard.

Through this systematic construction, an efficient, compliant, and high-quality BB fertilizer production line can be established, meeting the needs of modern agriculture for precision fertilization.