What are the methods to adjust the noise of dry type fish feed extruder?

 

Optimization of individual fish food extruder machines is fundamental, with a focus on addressing mechanical noise. The feeder's conveyor auger is the primary noise source; replacing the ordinary steel auger with a nylon-coated one reduces metal-to-metal friction with the feed tube. Simultaneously, the gap between the auger and the feed tube is increased from 0.5mm to 1mm to prevent overheating and noise. Explosion-proof, silent motors are used, with power matching the feeder's capacity (e.g., a 3kW motor for a feeder with a capacity of 300kg per hour). A flexible coupling is used between the motor and the reducer to absorb vibration and impact during transmission. Each feeder base is equipped with four shock-absorbing springs, with a load-bearing capacity of 1.5 times the equipment's weight, effectively reducing vibration transmission to the ground.

 

Layout adjustments reduce noise aggregation. A "staggered operation in groups" mode is adopted, dividing the 20 feeders into four groups, with each group starting at a 10-minute interval, avoiding noise peaks caused by simultaneous operation. The spacing between feeders is maintained at over 3 meters. Sound insulation panels, constructed with double-layered color steel plates filled with rock wool, are installed between the equipment, reaching a height of 2 meters and blocking 40% of lateral noise transmission. Sound-absorbing panels, made of perforated gypsum board, are installed on the chicken house roof, covering 60% of the chicken house area to absorb high-frequency noise transmitted through the air. Rubber mats are laid on the floor of the feeding channels to reduce impact noise from scattered feed and facilitate cleaning.

 

Group control and maintenance enhance noise reduction. A central control system uniformly adjusts the feeding speed, controlling the feed volume fluctuation of each floating fish feed extruder within ±5%, preventing abnormal noise from some equipment due to overload. A "daily inspection, weekly maintenance" system is established. During inspections, the focus is on listening to the feeder's operating sound; any abnormalities are immediately stopped for investigation. During maintenance, transmission components are disassembled, high-temperature resistant grease is applied, and worn auger blades and seals are replaced. In addition, regularly clean the inside of the feeder to remove feathers and feed mixtures. These impurities can easily cause the auger to jam and generate loud noise. Cleaning can reduce the noise of a single device by 5-8 decibels.

 

 

 

 

MIKIM's fish feed pellet production lines and supporting machinery offer excellent value for money. Not only are they affordable, eliminating middlemen markups and allowing small and medium-sized enterprises (SMEs) and fish farmers to purchase complete sets of equipment at reasonable costs, but they also boast exceptional efficiency. The fully automated process, from raw material crushing and precise ingredient mixing to extrusion pelleting and maturation, is completed in one continuous flow. This results in high starch gelatinization rates and uniform pellet formation, significantly improving production efficiency and feed quality, truly achieving "low cost, high output." Choosing a MIKIM fish feed pellet production line means enjoying comprehensive pre-sales and after-sales service, including 24-hour online customer support, a one-year warranty on the entire machine, professional on-site installation, commissioning, and maintenance, and a stable supply of spare parts. Customers can buy with confidence and use with peace of mind, with both excellent value and service quality!

 

Customer visit

 

Certificate of Honor

 

 

If you would like to learn more about MIKIM machinery, please contact us. We offer one-stop service and welcome your inquiries!!!

Contact now