The article considers the state of grain cargo transportation and related technical and technological problems. As a solution, the possibility of using multiple grain shipping containers and the introduction of a new modern grain cargo handling technology at the station based on inventory management and proper selection of vehicles was considered. The considered measures will contribute to simplifying, improving and reducing the number of cargo operations performed during grain handling, making their implementation more practical and energy-efficient.
1) is equipped with special machinery designed in accordance with the production methods for bodies used at the Uzbekkhimmash Chemical Engineering Works. Seven special stands, operated simultaneously by six workers, are installed in the production line.The shells completed according to order are delivered to the floor in front of the shop. Then, by means of a bracket-jib crane 1, they are successively placed on a reed place-ramp 2. The shell travels over the reed place-ramp to the roller supports 3 which rotate the shell during edge dressing before assembly and welding.The shell with the dressed edges travels over the reed place-ramp to the body assembly stand 4. By means of a bridge crane the shell is transferred from the reed place-ramp to the roller supports of the body assembly stand. The stand 4 consists of roller supports and an assembly clamp. The assembly clamp is mounted on a mechanized trolley. The air-operated jaws of the trolley can be adjusted for any diameter depending on the diameter of the shells to be assembled. The joints of the shells are tightly pressed against each other by means of the interchangeable headpieces of an air-operated cylinder mounted on the rod. After compression of the joints and determination of the required diameter, the shells to be assembled are electrically tack welded. The weld is an intermittent one (150-200 mm). The tubular rollers of the stand roller support have deep grooves in certain places for the assembly of bodies from lens extension pieces.By means of the bridge crane the body is delivered to stand 5 for welding of the girth joint. The stand 5 consists of a self-adjusting mechanized roller support with rubber coated rollers, a mechanized arm with a hinged welding head fastened to it, a belt conveyer to deliver flux to the weld area, and a flux suction apparatus for the removal of excess fresh flux. The body mounted on the roller support rotates at a uniform operating speed during welding. The rotational speed of the body can be varied by means of quick change gears.The stand is equipped with a commercial PTU-26 television set for remote control of the welding process.
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