Cyanide breaking device for cyanide-containing tailings and use method of cyanide breaking device

Abstract

The invention discloses a cyanide breaking device for cyanide-containing tailings and a use method of the cyanide breaking device. The cyanide breaking device comprises an electronic control system, an aeration tower group controlled by the electronic control system, a sand pump for conveying ore pulp as well as an ozone generating device and an ozone damaging device which are connected with the aeration tower group. According to the use method of the cyanide breaking device disclosed by the invention, ozone is used for removing cyanide and is decomposed in water to generate active hydroxyl (.OH) which has the advantages of high redox potential, high oxidizability, high speed and the like; mixed operation of the ore pulp and the ozone is performed by using an ore pulp cavitator; the ore pulp is uniformly distributed into aeration towers by using an ore pulp distributor and cyanide in the ore pulp is in full contact with the ozone; the whole device adopts the sand pump to perform jet suction and stir; the mode has the advantage that energy can be saved by 15 to 30 percent compared with a common drive stirring mode; the ozone and the ore pulp reversely flow and the utilization rate of the ozone is high. The device has the advantages of intensive control, variable frequency regulation, high degree of automation, quickness and convenience in equipment parameter adjustment, reliableequipment running, simple structure as well as convenience and safety in operation.

Description

technical field [0001] The invention relates to the field of cyanide-breaking treatment of cyanide-containing tailings, in particular to a cyanide-breaking device for cyanide-containing tailings and a use method thereof. Background technique [0002] my country is a country with a vast territory, many types of resources, and a large amount of overall reserves, but a small per capita mineral occupancy rate. With the development of social economy, the demand for mineral resources is also increasing. The rational development of mineral resources and the protection of the ecological environment have always been the focus of the country and society. [0003] At present, my country's gold mining enterprises use a large number of cyanides for carbon slurry cyanidation gold extraction. No matter whether the tailings after cyanidation gold extraction are dry or wet, a large amount of cyanide-containing solid tailings or cyanide-containing tailings slurry will be produced. Because th...

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Problems solved by technology

Because these tailings contain highly toxic cyanide, the general production enterprises use bleaching powder for oxidation treatment, and the treatment cost is very high. Therefore, many wet discharge enterprises do not treat them under the condition of lax supervision, but directly discharge them to the tailings pond , the clarified tailings water is returned to the production system for reuse. Once there is leakage in the tailings pond, it will cause highly toxic cyanide to enter the groundwater system, threatening the lives of surrounding humans and animals; , there is still a large amount of cyanide in the tailings of dry discharge, which also poses a significant risk of poisoning to the surrounding environment

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