Unlock instant, AI-driven research and patent intelligence for your innovation.

Floatation tungsten ore tailing waste water recycling technology

A waste water and tailings technology, which is applied in mining waste water treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of high effluent treatment cost, difficult treatment, low treatment cost, etc., and the treatment effect is obvious , Shorten the process link, the effect of wide source

Active Publication Date: 2017-11-17
FENY
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at a series of problems in the prior art, such as the difficulty in processing tungsten ore tailings wastewater from flotation, and the high cost of effluent treatment, the purpose of the present invention is to provide a method that has a good settling effect on tungsten ore tailings wastewater from flotation, so that The water quality reaches the reuse standard process, the waste water treatment cost of this process is low, and the effluent water quality is stable, which is suitable for popularization and use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Floatation tungsten ore tailing waste water recycling technology
  • Floatation tungsten ore tailing waste water recycling technology
  • Floatation tungsten ore tailing waste water recycling technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add phosphogypsum slurry with a mass concentration of 10% to the flotation tungsten ore tailings wastewater (the composition is shown in Table 1), adjust the pH value of the tailings wastewater to 8.2, and obtain destabilized wastewater; transport the destabilized wastewater to Add flocculant to the thickener, and the dosage is 30g / t based on the solid dry material in the tailings wastewater, and the obtained underflow is filled into the goaf; the obtained overflow water flows to the stirring tank by adding 3g / m 3 The heavy metal collector and sodium fluoride with a calcium ion content of 1.05 times in the tailings wastewater, after stirring evenly, the wastewater enters the sedimentation tank; add polyaluminum chloride, the dosage is 6g / m 3 , the obtained wastewater index is shown in Table 2, which meets the requirements of the first-level discharge standard of GB8978-1996 "Integrated Wastewater Discharge Standard". The reclaimed water is used in the beneficiation proc...

Embodiment 2

[0030] Add phosphogypsum slurry with a mass concentration of 10% to the flotation tungsten ore tailings wastewater (the composition is shown in Table 3), adjust the pH value of the tailings wastewater to 7.8, and obtain destabilized wastewater; transport the destabilized wastewater to Add flocculant to the thickener, the dosage is 25g / t based on the solid dry material in the tailings wastewater, and the obtained underflow is filled into the goaf; the obtained overflow water flows to the stirring tank by adding 3g / m 3 The heavy metal collector and sodium fluoride with 1.1 times the calcium ion content in the tailings wastewater, after stirring evenly, the wastewater enters the sedimentation tank; add polyaluminum chloride, the dosage is 8g / m 3 , the obtained wastewater index is shown in Table 2, which meets the requirements of the first-level discharge standard of GB8978-1996 "Integrated Wastewater Discharge Standard". The reclaimed water is used in the beneficiation process, w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a floatation tungsten ore tailing waste water recycling technology, which comprises the following steps: A. adding industrial ardealite into floatation tungsten ore tailing waste water for destabilization, and adjusting the pH value to be 6 to 9; B. conveying the destabilized ore pulp to a thickener and adding a flocculating agent for solid-liquid separation, wherein underflow is used for goaf filling; C. leading overflowing water to flow to a stirring pond, and sequentially adding a heavy metal collecting agent and sodium fluoride; and D. leading waste water to flow in a clear water pond, adding polymerized aluminum chloride and performing solid-liquid separation again, returning sludge back to a filling pipeline for underground filling, and directly recycling waste water. By using the method, the quality of outflowing water is stable and totally achieves the integrated waste water discharge standard (GB8978-1996), thus realizing the recycling of waste water and improving the recycling rate of floatation tungsten ore tailing waste water. By adopting the industrial ardealite for destabilization, the technology is low in cost, stable in treatment effect, simple to operate, and suitable for popularization and use.

Description

technical field [0001] The invention belongs to the field of industrial waste water treatment, and in particular relates to a process for recycling waste water from flotation tungsten ore tailings. Background technique [0002] Most tungsten ores are added with sodium silicate which has a significant inhibitory effect in the flotation process, so that the tailings wastewater contains a large amount of suspended solids that are difficult to settle, and has the physical and chemical characteristics of colloids. However, because the colloid is a multi-phase dispersion system, it has a large interphase interface and a huge free energy, and its fine particles tend to combine with each other to form coarse aggregates, so it has polymerization instability. Treatment of such wastewater can be done by adding acid, alkali or strengthening electrolytes to free the suspended matter in the wastewater from the steady state. [0003] In the current prior art, most tungsten ore mines first...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/10
CPCC02F1/5236C02F1/5281C02F1/66C02F9/00C02F2103/10
Inventor 曹兴
Owner FENY