Is the feed spraying issue caused by improperly adjusted moisture content or particle size in the raw materials?

 

 

Many people encounter the "feeding spurt" problem when using pellet feed machines-raw materials spill out of the feed inlet, like "spitting out" feed, which not only wastes raw materials but also makes the workshop full of powder. In fact, many times it is not that the machine is broken, but that the moisture content or particle size of the raw materials is not properly adjusted. By slightly changing the state of the raw materials, the amount of spurt will be greatly reduced.

 

 

1. Too high moisture content (above 18%): The raw material is too wet and will stick to the screw surface, like "mud stuck to a spoon," preventing it from being pushed forward smoothly. It will accumulate below the feed inlet, and as more raw material is added, it will push the wet material out of the feed inlet.

 

Solution: Dry the raw material with a dryer, controlling the moisture content to 14%-16% (a handful of raw material should crumble when squeezed). Alternatively, mix it with dry raw material to reduce the overall moisture content.

 

 2. Too low moisture content (below 12%): The raw material is too dry and loose, like "sand." It cannot grip the screw threads in the barrel and cannot be pushed forward. Instead, it will be "thrown" back to the feed inlet by the rotating screw, causing material to spray out.

 

Solution: Add a small amount of water to the raw material (1-2 kg per 100 kg of raw material), or add a little more steam to the conditioner (not too much, to avoid exceeding the moisture limit) to make the raw material slightly sticky.

 

 

1. Particle size too coarse (e.g., large particles exceeding 3mm after corn grinding): Coarse particles cannot be fully compressed by the screw, becoming stuck between the barrel and the screw. Subsequent raw materials cannot be pushed forward and will spray out from the feed inlet.

 

Solution: Replace with a finer pulverizer screen (e.g., use a 2mm screen for 2-4mm particles) to grind the raw materials finer, ensuring that coarse particles do not exceed 5%.

 

2. Particle size too fine (like flour, less than 0.1mm): Fine powder is too light and easily "blown" up by the airflow generated by the screw rotation, drifting out of the feed inlet and appearing as spraying.

 

Solution: Add a dust cover to the feed inlet (leaving a small opening for feeding), or slightly slow down the screw speed to reduce airflow, while ensuring the moisture content of the raw material is too low (maintain around 15%), allowing the fine powder to adhere together.

 

 

Each time you change the batch of raw materials, first test the moisture content and particle size. If they are not suitable, adjust them instead of adding them directly into the machine. This will save you a lot of trouble with spraying.

 

 

 

MIKIM boasts extensive experience in poultry feed pellet production lines, significantly reducing the incidence of poultry diseases. Its equipment is not only widely used across various industries domestically but also exported to Southeast Asia, Europe, Africa, and South America, earning a high reputation internationally. This global presence not only demonstrates the adaptability and competitiveness of its products, but also demonstrates the company's experience in adapting to diverse market standards and logistics conditions, enabling it to provide a stable supply chain for its overseas customers. Whether serving large domestic farms or cross-border feed companies, MIKIM can leverage its global service network to ensure a consistent, high-quality experience.

 

For more information on process flow design, equipment layout, factory construction plans, individual equipment pricing, or turnkey project proposals, please feel free to contact us!!!

 

 

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