Electrolytic gold extraction machine

Abstract

The invention discloses an electrolytic gold extraction machine, which comprises a case. The upper surface of the case is inserted with a gold extraction unit whose lower end extends into the case. The gold extraction unit is inserted on the upper surface of the case and the lower end extends into the case. The main body of the gold extraction unit inside, the anode tube inserted in the main body of the gold extraction unit, the cathode rod inserted in the anode tube and electrically connected to it, the sealing cover arranged at the upper opening of the main body of the gold extraction unit, and respectively arranged in the chassis The water inlet and outlet on the side surface, one end is connected to the water inlet, and the other end is connected to the inside of the anode tube, and the other end is connected to the water outlet, and the other end is connected to the inside of the anode tube. In the case, it is composed of a water pump connected with the water inlet pipe. The polarity of the anode tube and the cathode rod is interchangeable, and the cathode rod is a three-dimensional honeycomb structure. The invention has the advantages of simple structure and strong practicability.

Description

technical field [0001] The invention relates to the improvement of a device for directly electrolytically extracting gold from gold ore leaching liquid, in particular to an electrolytic gold extracting machine. Background technique [0002] Since the low-grade gold ore heap leaching technology came out in the United States in the early 1970s, it has become one of the main means of gold production in the world. Since the 1980s, my country began to study and gradually popularized and applied it. The scale of heap leaching has grown from 1,000 tons to 100,000 tons. The development and application of heap leaching technology has played a huge role in promoting the development and utilization of low-grade gold resources in my country. However, until now, in gold heap leaching production, two sets of independent devices are mainly used for adsorption in the adsorption tower with activated carbon and for desorbing the gold-loaded carbon in the desorption tower. The activated carb...

AI Technical Summary

Problems solved by technology

According to the adsorption principle of activated carbon, it is known that the carbon surface (especially at the edges and corners) has the largest adsorption amount of gold, and when squeezed and rubbed, the carbon surface and edges and corners are most likely to be powdered, which not only reduces the adsorption of activated carbon Activity and service life, and in the desorption process, these secondary carbon powders have flowed into the electrolytic cell with the solution before they are well desorbed, which not only causes unnecessary loss of gold, but also pollutes the electrolyte and affects the electrolysis effect. Electrolysis will stop due to short circuit of electrodes caused by too much carbon powder

[0004] In order to eliminate the influence of carbon powder and recover carbon powder to reduce the loss of gold, some mines have added a screening and cleaning process before desorption. Most of the cleaned carbon powder can be recovered after sedimentation and filtration, but there are still some fine floating carbon. It is difficult to fully recover the powder, and at the same time, the production cost is increased due to the addition of a process

[0005] (2) Because the gold-loaded carbon is transported to the desorption workshop and can be returned to use after desorption, while the heap leaching and adsorption in the mine is carried out continuously, which forces the mine to prepare a large amount of activated carbon for turnover

In some mines, because there is no desorption workshop, the gold-loaded carbon must be entrusted to external processing for desorption, and the return time of the carbon will be longer. Even in that year, there was no gold-removed carbon that could be returned to use. A heap leaching mine with an annual processing capacity of 10,000 tons of ore generally It is necessary to prepare 5 tons of activated carbon, and there is a backlog of production working capital, which seriously increases the investment of production funds

[0006] (3) Since the gold-loaded carbon cannot be desorbed in time, the gold produced in the mine cannot be converted into cash in time, so that the capital turnover during the production period is slow

For those mines that entrust external processing and desorption, the gold produced in the year is often turned into cash at the end of production, which leads to the fact that all the funds required during the production period rely on the mine to raise cash to maintain production, and the turnover rate of working capital is extremely high. Low

[0007] (4) The discharge of poor electrolytic solution is always a difficult problem for desorption electrolysis plants

[0008] (5) Entrusting external processing and desorption will cause another damage and pulverization loss when the gold-loaded carbon is mixed and sampled, and often there are differences and disputes in the gold-loaded carbon grade and moisture determination. A headache that takes time, energy, and money

At the same time, the processing cost is not a small amount for the entrusting party, generally accounting for 15-20% of the direct production cost

[0009] (6) The current desorption electrolysis process is carried out under normal pressure, so it can only be used in mines in low altitude areas

Although my country has already developed high-pressure desorption equipment, it is difficult for ordinary heap leaching mines to bear due to the high price.

Images