Tongliao Casting Sand Manufacturer sequentially performs the first screening, slurry mixing, and buffering of the raw sand; preferably, the pretreatment includes: using the first screening equipment to screen the raw sand, followed by slurry mixing with the mixing equipment, and then entering the buffer storage for buffering; preferably, the pretreatment includes: the raw sand is first unloaded through the unloading equipment, then screened by the first screening equipment, and subsequently mixed in the slurry equipment before being pumped into the buffer storage by the sand pump; preferably, the first screening equipment comprises a linear vibration screen; preferably, the quality concentration of the slurry obtained through mixing is 50-70%.

The above outlines the technical characteristics of the sand washing technology used by foundry sand manufacturers.