Here is a brief introduction to the various excavation mechanisms.
The chain bucket gold mining vessel is currently the most commonly used one. Its excavation mechanism consists of a series of buckets. The loops of the bucket are used to excavate and raise the ore and discharge it onto the ship for washing. The chain bucket gold mining vessel excavates the ore from the bottom with minimal agitation, so the ore is smooth and conducive to sorting operations. It is suitable for excavating soft sandstone with less gravel and suitable for excavating harder or cemented pebble sand mine; it can mine sand mine below water surface and top soil above water surface, and Futian The effect is better.
The size of a chain bucket gold mining vessel can be expressed in terms of the capacity of a bucket, typically between 50 and 600 liters. It is customary to use a small gold mining vessel with a bucket capacity of less than 100 liters. A medium-sized gold mining vessel with a bucket capacity between 100 and 250 liters is called a large gold mining vessel with a bucket capacity of more than 250 liters. The size of the chain bucket gold mining vessel depends on the occurrence conditions of the deposit, that is, the larger the deposit of the mined deposit, the denser it is, the more the gravel content, the deeper the burial depth, the wider the sand belt and the harder the rock. The larger the required gold mining vessel model. Large gold mining vessels have low mining costs and high labor productivity. However, when the gold deposit contains a large amount of clay , in some cases, a small gold mining ship may be considered instead of a large gold mining ship. There are two types of bucket connection: intermittent bucket chain and continuous bucket chain. In general, the continuous bucket chain gold mining vessel has twice the production capacity of the intermittent chain bucket gold mining vessel with the same bucket capacity, so almost all countries currently use continuous bucket chain gold mining vessels. There are two types of buckets for the bucket: single bucket and double bucket. The double bucket frame gold mining ship is a bucket chain excavator stripping the topsoil, and the other bucket chain excavator mining the mining layer to make the topsoil stripping and the ore mining back simultaneously.
The inhalation gold mining vessel uses a centrifugal pump for vacuum operation to extract the slurry from the bottom of the water and pipe it to the ore dressing equipment on the ship. It is divided into two types: no reamer and reamer. The reamer-free suction gold mining vessel is suitable for sucking non-viscous ore; the knives type smashes the viscous ore first and then sucks it, so its application range is wider than that of the non-reaming type. The suction type gold mining ship has a simple structure, and the infrastructure and production costs are relatively low, but it is difficult to clean the bedrock.
The mechanical shovel type gold mining ship uses the long handle bucket on the boom to dig the ore into the bottom of the water, and then the shovel is lifted from the water surface to the appropriate height by the wire rope wound on the winch, and then the bucket is transferred to the mine by the turntable. The ore is unloaded and the work is carried out in such a loop. The mechanical shovel-type gold mining vessel is suitable for sand deposits that are very hard, cemented, containing boulders and lumps. However, since the mining operation is intermittent, the mining efficiency is not high. Currently only used to mine shallow sand deposits.
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