Tailings resources are treasures to be excavated. Experts believe that the current task of China's mining circular economy is to develop and utilize a large number of tailings that have been put on hold for a long time. Then, what are the ways in which China's tailings resources development and utilization dominate the mainstream?
First: the tailings contain the currently extractable useful components and will be utilized in the near future, which is the preferred resource for business development.
Second: The current technology are not yet viable or technically clearance and the cost is very high, temporarily unable to market, such as those containing rare, rare earth elements such as mine tailings, should be kept, such as Baotou iron ore tailings and ore At the same time, the surrounding rock of the ore body containing rare earth elements is produced.
Third: Most of the main tailings are silicate mineral raw materials. The possible directions of utilization are mainly used as building materials and land reclamation, as well as backfilling mine production tunnels. The scale of their utilization is related to the degree of local economic development. Tailings arsenic, mercury, chromium, cadmium and other heavy metals can not be used for land reclamation content exceeded.
Fourth: There may be a small amount of low or inaccurate state problems. It is impossible to refine useful components and contain high radioactive materials. It cannot be used as building materials, reclamation tailings such as radioactive mines and rare earth elements. Mine tailings can only be treated with special sealing measures. The valuable component of tailings recovery refers to the first consideration of the recovery of valuable metals and minerals from tailings in tailings utilization.
In the past, China often used recycled valuable components for tailings resources. Although the benefits were considerable, it could not fundamentally solve the problem of reducing tailings and tailings. The comprehensive utilization of the tailings resources can be derived from the perspective of tailings reduction, harmlessness and resource utilization, and the prospects are unlimited!
Tailings - countless people are troubled by it, and countless people see huge business opportunities from it, how can we better solve the problem of tailings?
In 2017, Intercontinental Media teamed up with China's mine tailings management and comprehensive utilization authority to join hands with you – Intercontinental Media's 5th Mining Industry Summit Forum and Tailings Special Technical Seminar to truly solve your tailings. Troubled with the problem.
Reading Braille:
1. Familiarize yourself with the Braille alphabet, which consists of six dots arranged in two columns of three dots each. Each dot or combination of dots represents a different letter, number, punctuation mark, or special symbol.
2. Place your fingertips lightly on the Braille text, typically on a page or surface made specifically for Braille.
3. Feel the dots with your fingertips and identify the patterns to determine the corresponding letters, numbers, or symbols.
4. Move your fingertips systematically across the Braille text, reading from left to right and top to bottom, just like reading regular text.
Writing Braille:
1. Learn the Braille alphabet and practice writing each letter, number, punctuation mark, and special symbol.
2. Use a Braille slate and stylus, which is a tool specifically designed for writing Braille. The slate has rectangular openings to hold the paper, and the stylus is used to press the dots onto the paper through the openings.
3. Place a piece of Braille paper or cardstock into the slate, ensuring it is aligned properly.
4. Hold the stylus like a pen or pencil and press the appropriate dots onto the paper, one at a time, following the Braille alphabet.
5. Lift the stylus after each dot is pressed to avoid smudging or blending the dots together.
6. Continue writing the desired text, moving from left to right and top to bottom on the paper.
7. Review your writing by feeling the dots with your fingertips to ensure accuracy.
It is important to note that learning Braille may require time and practice, as it is a tactile skill that requires the ability to distinguish between the different dot patterns. However, with dedication and persistence, individuals can become proficient in reading and writing Braille.
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