Xinhai tailings re-processing line, with the thought of protecting ecosystem and fully using resources, provide a re-processing for those valuable metal or non-metal tailings. According different property of all kinds of ore tailings, Xinhai can design reasonable process and fully find the value in the tailings.
The iron tailings discharge from iron ore plant is in large amount, fine size and different types, and complex property, so Xinhai use the process of magnetic separation, flotation, acid leaching and flocculation to recover iron.
Xinhai usually use all-slime cyanide process and carbon-in-pulp process to recover the gold from gold tailings. As for the gold tailings cyaniding, xinhai will apply the method of dry-tailing stacking. That is, though the process of classifying and dewatering, at the same recycling the water recourses to remove the cyanide in it. Moreover, xinhai will use magnetic separation and gravity separation to remove the iron.
The main component of the lead-zinc tailings are quartz and suicide sericite. Except the methods of stockpiling in tailings pool, dry-tailing stacking and mine filling, Xinhai will also apply gravity separation, flotation separation, magnetic separation, gravity - flotation separation, and other process to recycle the valuable elements.
If the copper with high heavy metals content, the separation will be easier and apply the process of flotation. If there exist magnetite in the copper tailings, it will firstly using acid leaching to precipitate the copper, then use magnetic separation accordingly.
Xinhai use the process of flotation to reselect the fluorite, roughing and then cleaning. Before roughing, the pulp and the reagent will be fully stirred. After that repeated cleaning will be proceed.
Xinhai will apply gravity separation, magnetic separation and flotation separation to recycle the wolfram. The gravity separation is commonly used. Wolfram tailing re-selection process is mainly used spiral chute and centrifugal ore separator to roughing, shaking table and flotation to cleaning.
Siliceous collophanite mainly include quartz siliceous minerals in gangue mineral, so the floatability of gangue is larger than valuable mineral.
Xinhai will use the process of stage grinding and screening to recover the graphite from tailings. In the process of separation, flotation and shaking table is always used. If we want to achieve comprehensive recovery of several kinds of minerals from graphite tailings, we should combine several separation methods.
When deal with the bauxite tailings, flotation separation and magnetic separation is the common process. Moreover, wetting, dry-tailing stacking and mine filling is always used.
All-slime cyanidation carbon pulp plant in a gold mine in Henan
Xinhai tailings dry discharge can be applied to the dewatering requirements of almost all kinds of minerals, and some refractory tailings are no exception. The tailings slurry of a gold mine full-slime cyanidation carbon pulp plant in Henan is seriously sludged. The tailings volume is 500t/d and the concentration is about 43%. It is not easy to precipitate and is difficult to dewater. The cost of using it is 1.65 million yuan, and the bleaching powder treatment is sometimes incomplete, which will cause harm to the environment.
Due to the country's policy requirements for green ore, the processing plant urgently needs to carry out dry stacking of tailings to reduce environmental pollution. However, after consulting more than a dozen companies across the country, the person in charge of the plant found that either the technical level was not up to par, or the cost of the entire process was too high, and even the dry tailings discharge budget given by some manufacturers exceeded their budget. 2 times more. Later, the person in charge of the factory learned about the technical strength of our company during a chat with his friends, and went to our factory for on-the-spot research. Tailings dry discharge project rectification.
After a detailed analysis of the actual tailings indicators of the plant, Xinhai adjusted its tailings dry discharge process according to local conditions. Specifically, two-stage hydrocyclones were used for concentration and classification, and Xinhai multi-frequency dewatering screen was used to dewater the underflow. , the overflow is fed into an existing thickener. After this process, the final dewatering screen yield is about 60%, the water content is less than 15%, the current comprehensive water return rate is 75%, and the return water per ton of ore is 0.62m3, which fully meets the requirements of dry tailings discharge. The cost of processing each ton of ore is only 1.7 yuan, and the cost of bleaching powder can be saved by 1.65 million yuan per year. The comprehensive benefit reaches 3 million yuan per year, which completely exceeds the expectations of the partners.
Through this cooperation, the other party has witnessed the strength of Xinhai, and said that in the future, new projects will be built, new equipment will be added, and Xinhai will be the first choice. It is this good image of "successful one, influencing one side and driving the overall situation" for Xinhai to win a wider and wider market and create more and more opportunities.
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