Abstract
In this paper, we consider effective delivery of feed to fish cages. The rotary feeders design analysis is performed. Their disadvantages are analyzed. Possible ways to improve reliability are identified: rotor balancing, elimination of moving parts in design. The design of the feeder without moving parts is proposed, which provides the required parameters of feed distribution in cages and at the same time has high reliability and almost unlimited service life. To justify the design parameters of the feeder, we developed design factors that affect the feed distribution process (height of the pipe cut, height of the cone position, radius of curvature of the generatrix), and an integral criterion for evaluating the quality of feed distribution. The integral criterion includes an assessment of the effective area of feed distribution in the cage and its uniformity. A numerical multifactor study was performed and the optimal values of design factors were determined with the maximum value of the integral criterion that determines the efficiency of the feed distribution process. Based on the results of processing the obtained data, the high quality of feed distribution in cages and the prospects of the proposed design of the feeder as a whole were determined.
Highlights
Industrial aquaculture in Russia is experiencing a significant rise
While production volumes are relatively small, a significant share in the technological process is occupied by manual labor
This applies to all technological processes of a fish-breeding enterprise: stocking of cages, seating, sorting
Summary
Industrial aquaculture in Russia is experiencing a significant rise. Basically, this segment of the agro-industrial complex is represented by producers of rainbow trout. While production volumes are relatively small, a significant share in the technological process is occupied by manual labor. This is clearly expressed in the feeding process. Sometimes, they hand out quite large volumes of feed – up to 500 kg per cage per day. In addition to the low efficiency of the use of labor resources (the significance of this indicator depends very much on the cost of labor in the region), a big question is the quality of feed distribution and control of compliance with the requirements of the main fish breeder of the enterprise
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