How to Set a Bio-Organic Fertilizer Production Line

Establishing a bio-organic fertilizer production line requires balancing compliance, technical feasibility, and economic efficiency. It must proceed steadily according to scientific processes to ensure efficient production and meet the needs of green agriculture.

Preliminary planning is fundamental. First, the production scale must be clearly defined. Production capacity should be determined based on market demand. Small-scale lines typically produce approximately 10,000 tons annually, medium-sized lines 30,000-50,000 tons, and large-scale lines over 100,000 tons. This scale directly influences equipment selection and site size. Furthermore, site selection and regulatory approvals must be completed. The site should be located away from residential areas and have space reserved for raw material storage and finished product warehousing. Environmental impact assessments and business licenses must also be completed to ensure compliance with environmental and industrial policies and avoid the risk of subsequent rectification.

Equipment selection is crucial. Key equipment must be configured according to the production process: For the pretreatment stage, a crusher (to crush raw materials such as livestock and poultry manure and straw) and a mixer (to adjust the carbon-nitrogen ratio) should be selected. For the fermentation stage, a trough-type compost turner (commonly used for medium-sized lines and highly efficient) or a fermentation tank (flexible and space-saving for small lines) should be selected based on the scale of production. An aeration system should be used to ensure aerobic fermentation. For the further processing stage, a granulator (either extruder or disc type, depending on the product form), a dryer (to control the moisture content of the pellets to below 15%), and a cooler (to prevent high temperatures from affecting bacterial activity) are essential. For the post-processing stage, an automatic packaging machine and environmental protection equipment (such as a deodorizing tower and dust collector) are required to achieve clean production.

Process design and debugging are essential. The production process must follow the logical logic of "raw material pretreatment → fermentation and composting → further processing → packaging and storage." Each link must flow smoothly. For example, the fermented material must be screened to remove impurities before entering the granulation stage. After installation, the equipment must be tested under no-load conditions to verify normal operation. A trial run with raw materials should then be conducted to optimize parameters, such as adjusting the pelletizer speed to ensure uniform pellets and controlling the drying temperature to no more than 60°C to protect beneficial bacteria.

Post-production operational support is also crucial. A raw material quality inspection mechanism must be established to ensure it is free of heavy metal contamination. Equipment maintenance, especially consumable parts like pelletizer molds, must be performed regularly. Furthermore, employee training and standardized operating procedures are crucial to ensure stable production line operation and the production of high-quality bio-organic fertilizer.

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