To reduce the cost of small-scale organic fertilizer production lines, the following aspects can be considered:

1. Optimize equipment selection: Choose efficient organic fertilizer equipment to reduce heating energy consumption. Energy-saving organic fertilizer crushers, such as variable frequency speed regulation crushers, can be selected. The rotational speed can be flexibly adjusted according to the characteristics of the material and production requirements, avoiding energy waste caused by excessive rotational speed.

2. Process optimization: Through scientific testing and analysis of raw materials, the raw material formula is optimized to promote efficient microbial fermentation and reduce energy consumption during the fermentation process.

3. Adopt renewable energy: Where conditions permit, enterprises may consider using renewable energy sources such as solar and wind power to provide part of the energy for organic fertilizer production lines.

4. Reduce the cost of waste treatment: Treat the waste gas and wastewater generated during the fermentation process to achieve the recycling of resources. Secondary processing is carried out on by-products such as fine powder and substandard particles after screening to improve the utilization rate of resources.

5. Reduce raw material costs: Prioritize the use of raw materials with lower costs, such as livestock and poultry manure and crop straw. These raw materials not only have low costs but also can achieve the resource utilization of waste.

6. Enhance production efficiency: By adopting an automated control system, manual intervention is reduced and production efficiency is improved. Reduce production links and lower resource waste during the production process.

Through the above methods, small-scale organic fertilizer production lines can effectively reduce production costs and enhance market competitiveness while ensuring product quality.