Скачать или смотреть Big Bertha Puffin for Gold at Duisenburg Gold Mining Camp in California

We are at Lost Dutchman's Duisenburg Gold Mining Camp in Southern California.

A group of people that love gold mining are using Big Bertha a 4-banker drywasher (4 dry washers in one). It is a puffer system.

A puffer drywasher captures gold by using a strong air stream that forces material through a sluice, causing the heavier gold particles to settle at the bottom and get trapped by riffles while lighter debris is blown away by the air, effectively separating the gold from the surrounding material without the need for water.
Key points about how a puffer drywasher works:
Airflow:
A powerful air stream is generated by a fan within the drywasher, pushing the material through the sluice.
Sluice design:
The sluice has a series of riffles (raised bars) that create small pockets where gold particles can settle and get trapped.
Gravity separation:
As the material moves through the sluice, the heavier gold particles settle due to gravity, while lighter materials are carried away by the air current.
Material feeding:
The material to be processed, like dry dirt or gravel, is fed into the hopper of the drywasher, where it enters the air stream.
Benefits of a puffer drywasher for gold prospecting:
Dry operation: Allows for gold recovery in areas where water is scarce or not permitted.
Fine gold capture: Can effectively capture even very fine gold particles.
Versatility: Can be used on a variety of soil types and terrains.