What is the working principle of a gold sluice box?

A gold sluice box primarily utilizes a layer of gold-adhesive grass on its surface to adsorb heavy minerals such as gold.

Working principle: When the ore slurry flows through the gold sluice box, the special gold-adhesive grass layer on the sluice's surface causes heavy minerals such as gold to be retained on the sluice's surface, while lighter minerals continue to flow with the water. After a period of time, the heavy minerals adsorbed on the sluice's surface are collected to obtain a gold-rich concentrate.