Purification equipment for silica sol fertilizer

The utility model provides silica sol fertilizer purification equipment which is characterized in that an upper layer conveying line and a lower layer conveying line are arranged, a plurality of purification tanks which are sequentially arranged are arranged on each layer conveying line, and each purification tank circularly operates on the upper layer conveying line and the lower layer conveying line; a discharging station, a cleaning station and a feeding station are sequentially arranged corresponding to the circulating operation direction of the purification tank, purified raw materials in the purification tank are sucked out when the purification tank moves to the discharging station, and the purification tank with the raw materials sucked out is cleaned when the purification tank moves to the cleaning station. And when the purification tank moves to the feeding station, the to-be-purified raw materials are injected to carry out purification treatment in the next period. According to the utility model, t