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Technique for fluorite mine floatation sewage treatment

A flotation wastewater and treatment process technology, which is applied in the field of fluorite ore flotation wastewater treatment process, can solve the problems of high operating cost of the treatment process, hidden environmental hazards, and poor effluent quality, and achieve low process operating costs and reduced operating costs , the effect of saving operating costs

Active Publication Date: 2014-06-11
上海班德环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the complex composition and difficult separation of fluorite ore flotation wastewater, as well as the current status of high operating costs, poor effluent quality, and potential environmental and safety hazards in existing treatment processes, the purpose of the present invention is to provide a fluorite ore flotation The wastewater treatment process makes the fluorite ore flotation wastewater treated by this new process become clear and transparent without using the tailings pond, and the clear water that can be reused for fluorite flotation and with a moisture content of about 15% can be directly transported and processed. Recycled Dry Sand Two Substances

Method used

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  • Technique for fluorite mine floatation sewage treatment

Examples

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Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 as shown, figure 1 It is a flow chart of the flotation wastewater treatment process for fluorite ore. Taking wastewater from a flotation plant of a fluorite mine in Henan as an example, the implementation of this process is introduced.

[0036]Fluorite ore flotation wastewater (the suspended matter content of fluorite ore flotation wastewater is 42603mg / L) is pumped into the cyclone desander at a flow rate of 40 cubic meters per hour by No. 1 pump to achieve the separation of sand and mud; The mud from the top of the cyclone desander is degassed through the No. 1 degassing tank, and the mud discharged from the vibrating dewatering screen and filter enters the No. 1 degassing tank for degassing, and then pumped into the high-efficiency deep cone thickener through the No. 2 pump. The thin mud (solid content is 1%) from the upper part is degassed through No. 2 degassing tank, and at the same time, 100 liters of ferrous sulfate solution with a concentrati...

Embodiment 2

[0039] Fluorite ore flotation wastewater (the suspended matter content of fluorite ore flotation wastewater is 50210mg / L) is pumped into the cyclone desander at a flow rate of 40 cubic meters per hour by No. 1 pump to achieve the separation of sand and mud; The mud from the top of the cyclone desander is degassed through the No. 1 degassing tank, and the mud discharged from the vibrating dewatering screen and filter enters the No. 1 degassing tank for degassing, and then pumped into the high-efficiency deep cone thickener through the No. 2 pump. The thin mud (solid content is 0.8%) from the upper part is degassed through No. 2 degassing tank, and at the same time, 100 liters of ferrous sulfate solution with a concentration of 1% dissolved in the coagulant stirring tank is added every hour, and passed through No. 3 After the pump is pumped into the filter, 300 liters of anionic polyacrylamide solution with a molecular weight of 10 million and a concentration of 0.2% are added to...

Embodiment 3

[0042] Fluorite ore flotation wastewater (the suspended matter content of fluorite ore flotation wastewater is 47508mg / L) is pumped into the cyclone desander at a flow rate of 40 cubic meters per hour by No. 1 pump to achieve the separation of sand and mud; The mud from the top of the cyclone desander is degassed through the No. 1 degassing tank, and the mud discharged from the vibrating dewatering screen and filter enters the No. 1 degassing tank for degassing, and then pumped into the high-efficiency deep cone thickener through the No. 2 pump. The thin mud (solid content is 6%) from the upper part is degassed through No. 2 degassing tank, and at the same time, 100 liters of ferrous sulfate solution with a concentration of 3% dissolved in the coagulant stirring tank is added every hour, and passed through No. 3 After the pump is pumped into the filter, 300 liters of anionic polyacrylamide solution with a molecular weight of 10 million and a concentration of 0.15% dissolved in ...

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Abstract

The invention discloses a technique for fluorite mine floatation sewage treatment. The technique disclosed by the invention uses two deaerating tanks for removing air bubbles in mud, so that tiny solid particles are prevented from being adsorbed onto the air bubbles, and sedimentation and separation effects are improved. The technique disclosed by the invention needs no tailing pond, and by using the technique, the floor space can be reduced by more than 96% in comparison with the existing fluorite mine floatation sewage treatment technique according to a newly built fluorite mine floatation plant, so that land acquisition cost and tailing pond construction cost are saved, and the construction period is shortened; according to the existing floatation plant with tailing pond that is built, high investment for clearing the tailing pond or newly building the tailing pond after the tailing pond is full in future is saved. Compared with a waste water treatment technique using the tailing pond, the technique completely avoids potential environmental protection hazard about waste water leakage in the tailing pond and potential safety hazard about dam break of the tailing pond. The method disclosed by the invention realizes good separation effect, small floor space, low investment and low operation cost.

Description

technical field [0001] The invention relates to a recycling process of fluorite ore flotation wastewater, in particular to a fluorite ore flotation wastewater treatment process with low investment and low operating costs. Background technique [0002] The main component of fluorite is calcium fluoride, which is the basic raw material for hydrofluoric acid, steel, aluminum, ceramics, aviation and other industries. Natural fluorite ore is a kind of non-metallic ore, often accompanied by impurities such as carbonate, silicate, quartz, etc., which need to be separated through mineral processing to obtain fluorite powder containing calcium fluoride with high purity and easy use. For fluorite ores with different components, different flotation agents are used in the flotation process. Commonly used collectors include oleic acid, etc., inhibitors include water glass, etc., and chelating agents include soda ash. Fluorite ore is processed by crushers, vibrating screens, ball mills, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04
Inventor 于明军张蒙于蓓苏神逢
Owner 上海班德环保设备有限公司
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