Digging and separating method for placer gold and equipment thereof

A sorting technology for alluvial gold, applied in mechanically driven excavators/dredgers, chemical instruments and methods, magnetic separation, etc., can solve problems such as poor separation efficiency, high cost of gold mining, and uneconomical mining, etc., to achieve Effects of improving efficiency and simplifying the sorting process
CN1204332CInactive Publication Date: 2005-06-01JIPANGU
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIPANGU
Publication Date
2005-06-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

A placer gold separating method comprising subjecting placer gold- and gold ore-containing sand and gravel layers accumulated on the bottom of the water of a river and placer gold- and gold ore-containing sand and gravel layers formed deep in the ground to excavation or suction excavation by utilizing a water pressure difference, causing a mixture of the excavated or suction excavated placer gold- and gold ore-containing sand, gravel and water to flow horizontally by the action of a pressure fluid, and separating the placer gold and gold ores by utilizing a specific gravity difference while the mixture is flowing; and a system for this method. A placer gold mining boat used to practice this method and provided thereon with a combination of a suction excavation means, a mixture transfer means, a means for separating placer gold by utilizing a specific gravity difference, and a means for discarding the remaining mixture from which the placer gold has been separated. A placer gold separating method characterized by causing a mixture of placer gold and gold ores or pulverized gold ores and water to flow in a metallic cylinder, generating a magnetic field by a magnetic field generating means provided on an outer circumferential surface of the metallic cylinder, and magnetically depositing the placer gold in the mixture on the inner surface of the metallic cylinder, whereby the placer gold is separated.
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Description

technical field

[0001] The present invention relates to a method for mining placer gold and the like, and a ship for mining placer gold and the like used in the method. The method attracts and excavates sand beds containing placer gold or gold ore in rivers (including lakes and swamps in addition to rivers) and the like, and The difference in specific gravity is used to separate them for the purpose of mining placer gold and / or gold ore (hereinafter, in this specification, these gold deposits, or gold ore, or placer gold and gold ore are collectively referred to as "placer gold", etc.). In addition, the present invention also relates to an excavation method and system for placer gold etc., which attract and excavate sand layers containing placer gold etc. The difference is to sort the placer gold and so on. Furthermore, the present invention also relates to a method for sorting placer gold and the like and a system thereof. The purpose of this method and its system is to sep...

Claims

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