Ammonia full recovery type copper ore high-efficiency chemical leaching device

Abstract

The invention discloses a total-ammonia recovery type copper mine efficient chemical combination leaching device. A chemical combination leaching barrel and a tail gas purifier are connected through a flange. After being connected with a conical cover through a hollow shaft, a stir motor is inserted in the chemical combination leaching barrel. The conical cover is internally provided with blades and liquid inlet holes. Air inlets evenly distributed and formed in the shaft circumference are formed in the upper portion of the hollow shaft. A hydraulic drive disc is arranged in the chemical combination leaching barrel and connected with a hollow pipe shaft, and the hollow pipe shaft is arranged on a bottom valve. A jacket is arranged outside the tail gas purifier, and the tail gas purifier is internally provided with an intermediate pipe to form a jacket structure with a spiral finned barrel. A cyclone is arranged at an outlet of the tail gas purifier. Supplement of air (oxygen) in the chemical combination leaching barrel is automatic and convenient, the liquid flow mixing function is improved sufficiently, and the chemical combination leaching efficiency is very high. Material deposition blockage can be conveniently, reliably and efficiently prevented. Heat transfer and medium transfer are efficiently finished through the tail gas purifier in a multi-stage manner, and the gas-liquid separation effect is particularly good. Ammonia leakage is effectively prevented, environment-friendly, automatic and efficient copper mine chemical combination leaching is achieved, and high application value is achieved.

Description

technical field [0001] The invention relates to an ammonia full recovery type copper ore high-efficiency chemical combination leaching device. Background technique [0002] A considerable part of copper ore in nature exists in the form of copper sulfide. Copper sulfide can form copper-ammonia complexes and dissolve in an ammonia solution with a suitable concentration and enough air (mainly oxygen to participate in the reaction). After compounding, leaching and dissolving, solid-liquid separation can be carried out to proceed to the next step. [0003] Therefore, the compound leaching device of copper ore is an indispensable key equipment for the copper production process, but there are two major defects in the existing copper ore chemical combination leaching device, thus restricting the development of copper production technology. One is that the air blowing is not sufficient and inconvenient, the mixing and contact of air (oxygen) with pulp and leaching agent is insuffici...

AI Technical Summary

Problems solved by technology

One is that the air blowing is not sufficient and inconvenient, the mixing and contact of air (oxygen) with pulp and leaching agent is insufficient, the compound leaching speed of copper sulfide is slow and the efficiency is low, it is necessary to add special air blowing equipment, increase equipment investment, and also Cause unnecessary trouble; the 2nd, ammonia is easy to leak, because ammonia is highly irritating, volatile poisonous and harmful gas, thereby has very big impact on environment, and the consumption of ammonia is also very big, but if adopt airtight equipment to react, Not only the investment cost is high, but also it is easy to cause safety accidents such as explosions

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