Since the first application of dry gold in New Zealand in 1870, gold mining has made tremendous contributions to the production of world gold deposits and other heavy sand mines in the past 100 years. Among them, the main types of bucket-type gold mining vessels are more widely used, and many countries are still under construction and use. Since the chain bucket type gold mining vessel adopts the sprocket and the chain transmission, the bucket has a certain distance between each other, and the power consumption is large. Vertical and horizontal rotation is also not flexible. It can not dig the bucket and the bottom layer of compacted stone slate, resulting in gold mining river bottom cracks and pores do not rise steeply out. Moreover, the action of the bucket entering and leaving the ore layer is costly, especially when the ore is collapsed and the ore is collapsed and falls into the pit where the ore has just been dug. The gold particles in the ore that collapsed, especially the large-grain gold, will not be harvested because of the high density first sinking into the bottom of the pit. The equipment and the hull are bulky, mostly at 600t or above, and consume a lot of power. It is also necessary to install high-voltage lines from nearby substations. According to the introduction of the American Gold Council director Yin Jizhen, the United States has eliminated the chain bucket gold mining ship and replaced it with a single-toothed and double-tooth mining gold mining vessel. The excavation gold mining vessel is similar to the suction-type gold mining vessel with a reamer. Its operating procedures are only excavation, suction and transportation. The homework is continuous and does not work. Excavating the pressure of the tooth point over 1000kg, it can excavate the rock with the gravel layer and limestone . The excavation or suction can be used to extract the gold particles and mud sand in the riverbed depression and crack. Its excavation arm can be moved horizontally by 90°, and the vertical direction adjustment is also convenient, and the ship has its own generator set. A ship with a depth of 9 to 11 m has a deadweight of only 30 tons and can float on the water surface to easily transfer the work site. This type of vessel can also clean the river and recover the sand and gravel for construction while collecting gold. Filter Coffee Kettle,Drip Kettle Coffee,Hand Drip Coffee Kettle,Kettle Drip Fungho Industries (Group) Co., Limited , https://www.funghogroup.com