Earthworm castings organic fertilizer has become a high-quality soil amendment and plant growth promoter due to its rich organic matter and microbial activity. The granulation process of the entire earthworm manure organic fertilizer production line mainly includes key steps such as raw material preparation, granulation, drying, screening, and packaging. Below is a detailed introduction to this process:
1. Raw material preparation
Earthworm castings pretreatment: The collected earthworm castings need to be screened to remove impurities such as undigested organic matter, stones, etc. Sometimes it is necessary to adjust according to the humidity of the raw materials to ensure a smooth granulation process.
Raw material mixing: If other organic or inorganic nutrients such as chicken manure, cow manure, phosphorus and potassium fertilizers need to be added, they should be mixed evenly with earthworm castings at this stage.
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2. Granulation
Choose a granulator: Choose the appropriate granulator based on production scale and demand, commonly including disc granulator, extrusion granulator, drum granulator, etc. For raw materials such as earthworm castings, disc granulators and extrusion granulators are commonly used.
Granulation process: The prepared raw materials are fed into a granulator and formed into particles through mechanical force or chemical reactions (such as adding binders). During the granulation process, it is necessary to control the humidity and temperature of the material to ensure the molding rate and strength of the particles.
3. Drying
Particle drying: After granulation, the particles need to be dried to remove excess moisture and prevent clumping during storage or transportation. Common drying equipment includes drum dryers, belt dryers, etc.
4. Screening
Particle screening: After drying, the particles are screened by a screening machine to remove unqualified particles (such as oversized or undersized particles), ensuring that the product particle size is uniform and meets market standards.
5. Packaging
Finished product packaging: Qualified particles after screening are quantitatively packaged by an automatic packaging machine. The common packaging form is bagged, and sealing and labeling are also required during the packaging process.
6. Finished product storage and sales
Storage and sales: Packaged earthworm manure organic fertilizer needs to be stored in a dry and ventilated warehouse to avoid moisture and pollution, and is ready for sale to agricultural growers or fertilizer distributors.
7. Auxiliary equipment
Conveying equipment: such as belt conveyors and screw conveyors, used for conveying materials between various processes.
Dust removal equipment: used to collect and process dust during the production process, improving the working environment.
The granulation process of the entire earthworm manure organic fertilizer production line needs to be reasonably planned and designed based on factors such as raw material characteristics, production scale, product quality requirements, and budget to ensure production efficiency and product quality.
