In-situ leaching uranium mine wastewater evaporating device and method

A mine wastewater and evaporation device technology, which is applied in mining wastewater treatment, energy wastewater treatment, general water supply conservation, etc., can solve the problems of high land acquisition and environmental protection requirements, small evaporation, and large impact of natural conditions, etc., to improve the evaporation of wastewater The effect of volume, reduced floor area, good economy and rationality

Active Publication Date: 2015-05-13
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of the natural evaporation method is that it is greatly affected by natural conditions, and the evaporation in winter is very small, so it is only suitable for areas where the evaporation is much greater than the rainfall. Higher requirements for environmental protection

Method used

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  • In-situ leaching uranium mine wastewater evaporating device and method
  • In-situ leaching uranium mine wastewater evaporating device and method
  • In-situ leaching uranium mine wastewater evaporating device and method

Examples

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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, an in-situ leaching uranium mine wastewater evaporation method according to the present invention includes the following steps:

[0028] (a) The in-situ leaching uranium mine wastewater in the evaporation pond 1 is lifted into the evaporation device 3 using a submersible pump, the outdoor temperature is 20°C, and the waste water temperature is controlled to 16°C;

[0029] (b) In the evaporator 3, the wastewater enters the liquid distribution pipe 8, and is evenly sprayed on the base material 5 through the liquid distribution hole on the liquid distribution pipe 8 to evaporate; the wastewater inlet time is 5 minutes, and the inlet volume is 290g / m 2 ; Control air humidity 46%RH, wind speed 1.5m / s; the overall water retention capacity of the base material is about 31kg; the base material is polypropylene woven cloth or carbon fiber woven cloth;

[0030] (c) Waiting for 25 minutes, all the wastewater adsorbed on the base material 5 evaporates completel...

Embodiment 2

[0038] Such as figure 1 As shown, an in-situ leaching uranium mine wastewater evaporation method according to the present invention includes the following steps:

[0039] (a) The in-situ leaching uranium mine wastewater in the evaporation pond 1 is lifted to the evaporation device 3 using a submersible pump, the outdoor temperature is 25°C, and the waste water temperature is controlled to 10°C;

[0040] (b) In the evaporator 3, the wastewater enters the liquid distribution pipe 8, and is evenly sprayed on the base material 5 through the liquid distribution holes on the liquid distribution pipe 8 to evaporate; the water inlet time is 5min, and the liquid inlet amount is 289g / m 2 ; Control air humidity 39%RH, wind speed 2.1m / s; the overall water retention capacity of the base material is about 30kg; the base material is polypropylene woven cloth or carbon fiber woven cloth;

[0041] (c) Waiting for 25 minutes, all the wastewater adsorbed on the base material 5 evaporates completely, a...

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Abstract

The invention provides an in-situ leaching uranium mine wastewater evaporating device and an in-situ leaching uranium mine wastewater evaporating method. In-situ leaching uranium mine wastewater in an evaporation pond is lifted into the evaporating device by using a submerged pump, and the wastewater temperature is controlled at 10-20 DEG C; in the evaporating device, the wastewater enters a liquid distributing pipe, is uniformly sprayed onto a base material through liquid distributing holes in the liquid distributing pipe and is evaporated; 20-30min later, the wastewater adsorbed onto the base material is completely evaporated, and next wastewater spraying is started; the wastewater coming out of the evaporating device reflows into the evaporation pond. The in-situ leaching uranium mine wastewater is uniformly distributed onto the base material through lifting of the submerged pump, and under the action of wind energy or solar energy, evaporation of the wastewater is accelerated, so that the evaporation efficiency is improved, the difficulty that the wastewater in the evaporation pond is difficult to treat and accumulate is overcome, and the economy and reasonability are relatively good.

Description

Technical field [0001] The invention belongs to an in-situ leaching uranium mining wastewater treatment technology, and in particular relates to an in-situ leaching uranium mining wastewater evaporation device and method. Background technique [0002] In-situ leaching uranium mining technology is a new uranium mining process that integrates mining, beneficiation and smelting. It is currently widely used in uranium mining at home and abroad. The waste water generated in the process of leaching and hydrometallurgy is treated by draining into the evaporation pond for natural Evaporation is the natural evaporation method. The main sources of wastewater from in-situ leaching mines are as follows: 1. In situ leaching uranium mines, in order to ensure that the groundwater outside the mining area does not dilute the leaching solution, and at the same time, to ensure that the leaching solution does not spread outside the mining area. The range of leaching is controlled. The general pract...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/04C02F1/14C02F103/10
CPCY02A20/141Y02A20/212Y02W10/33Y02W10/37C02F1/047C02F1/14C02F2103/10
Inventor 苏学斌刘乃忠李喜龙高险峰成弘阮志龙夏旭吴旭红闫纪帆
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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