Beneficiation process of copper - lead - zinc ore

Production examples

Example 1

The left side of the display for the Henghong mine production of the Tibetan lead-zinc ore concentratorthree- dimensional demonstration video, the mine design scale of 600,000 tons / year, 2400 tons of daily processing, the number of days worked 250 days, the project construction in two phases, Design scale of 300,000 tons / year, handling 1,200 tons, the second phase of the design scale of 300,000 tons / year handling 1,200 tons. The beneficiation method adopted in the project is flotation method, and the product scheme is lead antimony concentrate and zinc concentrate. The main design indicators are: yield, lead antimony concentrate 10.9%, zinc concentrate 2.58%; concentrate grade, lead antimony concentrate Pb32.17%, Sb28.11%, zinc concentrate Zn59.9%; recovery, Lead antimony concentrate Pb85.11%, Sb82.59%, zinc concentrate Zn88.82%.

Example 2

Yunnan, a lead-zinc ore dressing plant, after the establishment of the plant after the continuous improvement and improvement of the field process, process indicators have been greatly improved, but the late mining depth due to deepening the ore, the nature of the ore changes, lead, zinc concentrate grade The rate of decline. The original pre-flotation process has been unable to meet the requirements of the copper lead and zinc ore sorting, for which the commission commissioned Henghong to do process transformation, Henghong through repeated mineral processing test , decided to use mixed flotation process, priority flotation of copper Lead concentrate, copper and lead concentrate re-grinding and then floating, accompanied by Henghong homemade lead-zinc copper mine equipment, Henghong full-section air-lift micro-bubble flotation machine instead of the original flotation machine , after the transformation, the The main process indicators are as follows:

Contrast before and after transformation	Process	Processing ore quantity t / d	Copper recovery /%	Lead concentrate grade /%	Zinc concentrate grade /%	Equipment lining life / days
Transformation of the former	Priority flotation	500	78.53	35.68	83.49	50
After transformation	Mixed flotation	680	83.45	50.13	84.68	90

Through this transformation, the concentrator can increase the output value of nearly 3 million per day, the daily profit increase of 26,000 yuan, 300 days per year by production, the annual profit increase of 26,000 yuan × 300 days = 7.8 million yuan, its economic benefits Very significant.

Example 2

Henghong copper lead and zinc mineral processing technology can focus on the program comparison, investment costs and comprehensive utilization of minerals, at home and abroad to complete the case nearly 100 sets of its technological achievements received international customers praise. In these copper and lead-zinc application cases, the representative of a company in Xinjiang copper and lead-zinc mine, the symbiotic relationship between the mine, Kemei small size, using the original process, copper and lead concentrates each containing excessive, affecting the enterprise economy benefit. Henghong through the improvement of technology, selection of efficient equipment, the final indicators of good, up to standard production.

As the ore in the copper, lead mineral symbiotic relationship, the nature of the complex ore, Henghong after a comprehensive analysis of the nature of ore, decided to use part of the priority flotation new technology. First, on the basis of the original preferential flotation process, the preferred collector is used to obtain the copper concentrate, and then the mixed flotation is carried out. The mixed concentrate is re-ground, Degree to -38μm78%, to improve the copper-lead mineral monomer dissociation, to copper-lead mineral separation conditions.

Henghong transformation process is simple, low production costs, copper concentrate recovery rate of 90.21%, lead and zinc are qualified, lead concentrate recovery rate of 88.3%, good quality. Copper, lead concentrate with low, the recovery rate than the original process greatly improved, while the recovery rate of zinc concentrate is also significantly improved by the other highly praised.

Through this cooperation, good equipment performance, coupled with thoughtful after-sales service, partners witness the strength of Henghong, looking forward to the next plant and Henghong company's cooperation. In recent years, Henghong company and domestic large enterprises more and more cooperation, and domestic large enterprises, mining cooperation, to enhance the Henghong company's service level, exercise the installation team, but also contract more foreign total Package works, expanding the Henghong company's influence.

Other representative cases:

Henghong copper lead and zinc mineral processing technology is still a lot of cases, we welcome the majority of users to my company for field inspection, we will also accompany you to study the same type of production line we have done, with the facts that everything:

Northwest of a copper lead and zinc concentrator, Henghong in the absorption of priority and mixed flotation process on the basis of the advantages of close combination of ore characteristics, the use of partial preferential flotation of new technology, access to good mineral processing indicators, including lead concentrate grade up to 66.52% , The recovery rate of 88.5%, to the same industry advanced level.

Sweden, a copper lead and zinc concentrator, the daily output of 1000t, copper 0.58%, lead 2.85%, zinc 4.90%, on-site production using copper and lead floating process, copper and lead mixed concentrate after the release of activated carbon, with copper collector Copper and lead separation flotation, by a rough three fine operation, can get copper concentrate 20.25% copper, lead 6.75%, lead concentrate lead 58.73%, copper 3.40%.

Inner Mongolia, a copper lead and zinc concentrator, mainly copper, lead, zinc, there is a certain amount of magnetite, Henghong according to the nature of the ore, carried out a series of mineral processing experiments, the final decision of copper and lead mixed floating re-separation - Election - flotation tailings weak magnetic separation process, in the high-grade copper, lead, zinc concentrate at the same time also get more than 65% iron ore.