STATUS AND PROSPECTS OF DEVELOPMENT AND MODERNIZATION OF SCREW LOADERS FOR LOADING BULK MATERIALS

Abstract

Screw conveyors are important equipment in various industries such as agro-industrial complex, construction and chemical industry. They are used to transport bulk materials such as grain, cement, sand and granules, due to their simple design, reliability and efficiency. The main problem when using them is the limitation in working with materials with high humidity or compressed materials. Manufacturers are constantly improving screw designs and materials to increase efficiency and increase service life. Screw conveyors have a compact design and allow for continuous and safe transportation of bulk materials. They are used not only for processing bulk materials, but also in mining and construction equipment.

The paper conducted a study of sand transportation using a screw conveyor, where parameters such as rotation speed and radial clearance were studied. The experimental results allow us to determine the optimal conditions for ensuring high productivity in sand transportation, studying the influence of various parameters on the efficiency of the process.

According to the experimental results, the radial clearance is an important parameter for ensuring high productivity of screw conveying of sand. The best results were achieved with a clearance that is 1.5-2 times the particle size of the material, but not less than 3 millimeters. This allows to avoid jamming of the material and ensure uninterrupted operation of the screw transport. Therefore, the optimization of this parameter is critically important for increasing the efficiency of transporting sand and other bulk materials.