Tubular purification method and tubular purification tank

A purification tank and tube type technology, applied in the field of purification, can solve the problems such as the large increase in the concentration of ions in the supernatant and the supernatant, the long purification process and the large number of tanks, etc., so as to solve the volume imbalance of the solution, shorten the purification process, and eliminate the Effects of Environmental Pollution

Inactive Publication Date: 2009-07-08
佛山市兴民科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of the trough type purification method include: 1) the volume of the tank is large (80-145m 3 ), the number of tanks is large (9-10), the purification process is long, and the energy consumption is high
2) Relying on the hydraulic force formed by mechanical stirring to remove the new cladding on the surface of zinc powder, the effectiveness is very low and the purification efficiency is low
3) The removal of cobalt and nickel ion impurities requires a high liquid temperature (85-95°C), and steam is used to directly heat the solution in the tank, resulting in intensified evaporation, unbalanced solution volume, and a large amount of harmful gas brought out by the evaporated water vapor out of the tank, causing environmental pollution
4) The slag-type grains produced by zinc powder replacement are easy to stay in the tank and redissolve in large quantities, resulting in increased consumption of zinc powder
5) The purification process cannot be adjusted flexibly, and cannot adapt to changes in the concentration of ions and impurities in the supernatant. It has strict requirements on the operation of the upstream batching process, and in turn requires strict control of the impurity components of the zinc ore powder raw material
As the raw materials of zinc ore powder tend to be depleted and the impurity content of raw materials tends to increase, the defects of the tank purification method are increasingly becoming the technical bottleneck of the purification of the supernatant

Method used

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  • Tubular purification method and tubular purification tank
  • Tubular purification method and tubular purification tank
  • Tubular purification method and tubular purification tank

Examples

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Embodiment 1

[0024] pass figure 1 It can be seen that the present invention is a tube type purification method. In the tubular purification method, the impurity-removing solution 11 completes the set purification process during the irreversible flow through the tubular purification tank 1 . The impurity-removing solution 11 is a solution containing at least one granular solute, the solution may be a zinc sulfate solution 12, and the granular solute may be a zinc powder solute. The tube-type purification tank 1 comprises a chamber 2 filled with a liquid medium 3, at least one ultrasonic wave source device 10 immersed in the liquid medium 3 and at least one tube-type purification tank filled with the impurity-removing solution 11 immersed in the liquid medium 3. device 5. The purification process refers to the process in which the impurity removal solution 11 is subjected to effective ultrasonic isolation irradiation in the irreversible flow process. The effective ultrasonic isolation irra...

Embodiment 2

[0028] Embodiment 2 is an embodiment of the present invention for purifying zinc sulfate solution in hydrometallurgy. Its structure is as figure 1 shown, from figure 1It can be seen that the technical principle of the second embodiment is the same as that of the first embodiment. The chamber 2 of the tubular septic tank 1 is an open chamber 15 . The impurity-removing zinc sulfate solution added with additives such as zinc powder according to the impurity content enters the tubular purification tank 1 at a set flow rate. During the irreversible flow through the tubular device 5, it is efficiently mixed by the static mixing device 16, and the zinc The powder is in a uniform distribution state, and is subjected to a wave source frequency of 20kHz and a wave source sound intensity of 4w / cm 2 Ultrasonic isolation irradiation, zinc powder quickly replaces the ionic impurities in the zinc sulfate solution to be removed, and produces the zinc sulfate solution after removal. When t...

Embodiment 3

[0031] figure 2 is another embodiment of the present invention. From figure 2 It can be seen that the present invention is a tube-type purification tank with two ultrasonic wave source devices. The technical principle of the third embodiment is the same as that of the first and second embodiments. It’s just that the pipe device 5 that the impurity-removing solution 11 flows irreversibly is a straight pipe device; In the area irradiated by the ultrasonic wave source devices 10 and 17, the ultrasonic wave source devices 10 and 17 are inner and outer two-layer ultrasonic wave source devices, forming a multilayer superimposed ultrasonic emission wave source; The frequency of the wave source is 15kHz, and the sound intensity of the wave source is 4w / cm 2 Ultrasonic waves emitted by the ultrasonic wave source device 17 are isolated and irradiated; the impurity removal solution 11 is subjected to a wave source frequency of 20kHz and a wave source sound intensity of 2w / cm in the...

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Abstract

The invention provides a pipe type purifying method, the set purifying process of the solution to be purified is completed in a nonconservative pipe type purifying groove.The solution to be purified is a solution containing at least one granular solute; the pipe type purifying groove comprises a cavity full of liquid medium, at least one ultrasound wave source apparatus immersed in the liquid medium and at least one coiled apparatus full of the solution to be purified; the purifying process is that in the nonconservative flow process, the solution to be purified is irradiated in a insulation state by effective ultrasonic wave.

Description

Technical field [0001] The invention relates to a purification method and device for removing ionic impurities in a solution, especially a tubular purification method and a tubular purification tank for removing copper, cadmium, cobalt, and nickel impurities in a zinc sulfate solution under the condition of using zinc powder as a reducing agent. It belongs to the field of purification technology. Background technique [0002] The zinc sulfate solution produced by leaching zinc ore powder, commonly known as the supernatant, contains copper, cadmium, cobalt, nickel and other ionic impurities. The current general continuous purification process uses zinc powder as a reducing agent and adopts a tank-type purification method to achieve the purpose of impurity removal. The general tank-type purification method adopts multiple tank-type purification tanks in series, and removes copper, cadmium, cobalt, nickel and other ionic impurities by controlling the liquid temperature, purifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/44C22B3/22
CPCY02P10/20
Inventor 曾兴民
Owner 佛山市兴民科技有限公司
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