The L32 cooling drum is specifically designed for cooling and crushing sand particles in the casting production line of the casting workshop after casting molds have fallen. The machine itself operates in a sealed manner and is reliable in operation. Due to its excellent comprehensive performance, it is widely used in high-speed and high-pressure molding batch production lines for small and medium-sized castings. The machine stirs and flips the castings in wet sand with buffering and heat transfer effects, allowing for ventilation and separation of the sand. At the same time, the old sand is thoroughly crushed and uniformly cooled along with the castings.
Product Features
The sand dropping cooling drum is an efficient new equipment developed and applied in the casting production line in recent years. It operates without vibration, impact or noise, and operates in a closed manner, basically eliminating the dust pollution caused by sand dropping in the workshop. According to the heat capacity of the poured castings, an automatic humidification and water addition device is used to spray water into the drum. The castings are mixed and flipped together in the wet old sand with buffering and heat transfer effects, and ventilated. The old sand is perfectly crushed, and the castings are uniformly cooled. The discharged castings can be directly sent to the surface for cleaning, greatly improving labor productivity and saving investment in old sand crushing equipment and expensive casting cooling equipment. There is currently no good equipment available for continuous cooling of small castings, so although the sand dropping cooling drum appears larger and more expensive than the sand dropping machine, the machine power is also higher; However, due to the completion of casting sand dropping, cooling, old sand crushing, and coarse screening in this machine, the total investment in casting equipment is greatly reduced, and the castings in the drum move forward during flipping without hanging or not moving. The poured mold is sent to the left end of the drum body through a vibrating conveyor, and when it rotates to a certain height with the drum body, it falls to the bottom of the drum body by self weight. Under the continuous impact and friction between them, the sand mold and the casting are separated, and cooled by the second row of nozzles of the automatic water spraying humidification device. The old sand is roughly screened by the sieve plate and discharged through the lower outlet of the sand collection chute into the old sand treatment system, with a temperature of about 110-130 ºC. The cooled casting is discharged from the right end of the drum, with a temperature of about 100-120 ºC. To improve the dust removal effect by increasing the wind speed of the hood on the right end of the drum, a baffle can be added for appropriate shielding
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