Abstract
Pulping machines are an integral part of production lines for the processing fruits and vegetables. To meet the ever-growing demand for these agricultural products, it is necessary to introduce innovative solutions to modernize equipment not only for increasing its productivity but also for ensuring its safety. The article proposes a pulping machine that helps to increase the productivity by using the entire area of the sieve drum. The productivity also depends on reliable and safe equipment operation, elimination of downtime during product pulping. One of the main factors affecting the reliable and safe operation is the pressure of pulped product on the walls of the sieve drum, and this pressure depends on the product density. It has been experimentally shown that the density of pulped product can vary significantly even for different varieties of vegetable marrow. As the calculations show, in this case the pressure inside the sieve drum of the pulping machine changes considerably (more than 10%). Therefore, the density of the product should be taken into account when calculating the design parameters of the pulping machine; it helps to ensure its reliable and safe operation and hence to reduce the probability of downtime and to improve the productivity.
Highlights
Pulping machines are an integral part of production lines for the processing fruits and vegetables
Rotated by the shaft the screw displacing piston due to its conical shape more evenly distributes the pressure of the raw material along the periphery of the cylindrical sieve drum installed inside the basket
The friction of the raw material on the surface of the cylindrical sieve drum results in its grating and falling into the space between the drum and the basket, there under the force of gravity the grated raw material falls through the holes of the basket into the gathering bin
Summary
At present fruit and vegetable purees, juices and other products obtained through the processing of fruits and vegetables are in great demand all over the world [1, 2]. Production lines for processing fruit and vegetable products consist of various equipment: washing machines, cleaning machines, blanchers, grinding machines [3, 4] To meet the ever-growing demand for vegetables and fruits, it is necessary to introduce innovative solutions to modernize existing equipment for increasing its productivity and for ensuring its safety [7] In this regard, a pulping machine which helps to increase the productivity has been developed at the department "Processing of agricultural products and life safety" in South Ural State Agrarian University, and a patent for this machine has been received (Fig. 1) [8]
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