Abstract
It is known that fiber wastes (lint, down and seeds) produced at ginneries contain fibers that are suitable for spinning and can be used in industry, and their separation significantly increases the level of fiber production (1.9% - 2.5%). Based on these analyzes, the study aimed to create a new device that separates long fibers from lint and down. As a result, the amount of fiber output in the enterprise will increase and the enterprise will have significant economic benefits. In addition, the introduction of the device will prevent the addition of long fibers (longer than 16 mm) that can be used in the textile industry to the waste. This article focuses on the creation of a fiber separation device suitable for the treatment and spinning of fibrous waste produced in ginneries. The study theoretically examined the main working bodies of the fiber separation device from waste. Theoretical research is devoted to the study of the strength of the main working body of the fiber separation device−the separating saw drum and its shaft. In the study, the sawdust drum is a more stressed steel coating, and it was found that the strength reserve of this drum is [δТ] = 2.03 (where δТ = 0.8 - 2.5) was found to be. As a result of calculating the resistance of the saw drum shaft to stiffness and vibration, it was determined that the shafts are resistant to vibration under periodic loading and that the oscillation frequency along its axis through the critical rotation frequency is vcr=10.3 Gts.
Highlights
The working parts of the device serve to grind, clean and separate industrially suitable, relatively long fibers from waste and short fibers from technological processes
As a result of calculating the resistance of the saw drum shaft to stiffness and vibration, it was determined that the shafts are resistant to vibration under periodic loading and that the oscillation frequency along its axis through the critical rotation frequency is vcr = 10.3 Gts
As a result of calculating the strength of the saw drum, it is a steel coating that is under more stress, and it was found that the strength reserve of the drum is [δТ] = 2.03
Summary
The working parts of the device serve to grind, clean and separate industrially suitable, relatively long fibers from waste and short fibers from technological processes. These working parts must meet certain technical requirements of the technological process in which they are performed. The following is a list of these technical requirements [1] [2]: Working bodies should not damage fibrous materials as a result of dynamic shocks to the fibers during movement. Working bodies in direct contact with fibrous materials are subject to abrasion due to regular friction. During the design process, special measures against abrasion of the working bodies by friction should not be neglected. Mechanical impact is common, and all working organs in the device are under this influence
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