SU1271625A1 - Apparatus for cooling hot loose materials - Google Patents

Description

The invention relates to a foundry, namely, devices for cooling hot bulk materials, and can be used to cool a molding material in a foundry to be used for reuse. The purpose of the invention is to improve the quality of the bulk material. FIG. 1 shows a device for cooling hot materials, general view; in fig. 2 - the node in FIG. 1. The device comprises a loading unit 1, a drum 2 with hollow spiral ribs 3, a discharge unit 4, a tipping unit in the form of a perforated pipe 5, a fan 6 for blowing the outer surface of the drum 2, a bath 7 for collecting water. On top of the device is closed by a casing 8, equipped with air inlet pipe 9. The device operates as follows. The Babara 2 is turned into rotation, the water supply to the perforated pipe 5 and the fan 6. At the same time, hot flowing material is fed through the loading unit 1 to the rotating drum 2, where it is carried away by the walls.

the drum is rotated through a screw channel formed by spiral helical ribs 3 along drum 2. By moving, the material gives off heat to the walls of drum 2 that is washed outside with water supplied from the perforated pipe 5. At the same time, the air supplied by fan 3 blows wetted the cylindrical surface of drum 2, whereby the water evaporates and

Claims (1)

knots, ribs, spraying unit in the form of a perforated pipe and a fan for blowing the drum walls, which is necessary in order to improve the quality of the flowing material, it is equipped with a water bath located under the drum, the spraying unit is mounted above the drum, and in the form of a hollow helical spiral on the side surface of the drum. 252 the temperature of the walls drops sharply. Air escapes from the device through pipe 9 in the casing 8. At this, some mass of cooling water entering the drum 2 from the perforated pipe 5 enters the outer cavities of the spiral spiral ribs 3, providing additional cooling to the depth of their penetration into the layer of hot material. The main technical and economic advantage of the device to be developed is the possibility of effective cooling, for example, formation, after thermal or mechanical regeneration, without the danger of overwetting, affecting both the grain composition of the filler and the process of opening the mixtures. The elimination of 20 direct evaporative cooling ensures high physical and mechanical properties of the mixtures and create perdoposlyk to reduce scrap casting. Apparatus of the Invention A device for cooling hot bulk materials, comprising a drum installed with the capability of rotation with loading and unloading