Backflow prevention pneumatic type gold melt disturbance device

Abstract

The utility model discloses an anti-backflow pneumatic type gold melt disturbance device which comprises a kettle body and an aeration body, the bottom of the kettle body is provided with a discharge port and a discharge channel, the aeration body is arranged between the discharge port and the discharge channel, the center of the aeration body is provided with a material passing hole, and the material passing hole is communicated with the discharge channel. Two ends of the material passing hole are respectively butted and communicated with the discharge hole and the discharge pipeline; aeration holes communicated with the material passing holes are formed in the side wall of the aeration body, the aeration holes are sequentially connected with a small ball bin and a large ball bin through pipelines, and the large ball bin is connected with an air inlet pipe; a valve I is arranged on the pipeline between the small ball bin and the aeration hole, and a valve II is arranged on the pipeline between the large ball bin and the small ball bin. By adopting the device, the disturbance and reduction rate of the gold-containing melt at the bottom of the reaction kettle are improved, the recovery rate of gold is further improved, the waste of gold ore resources is reduced, and meanwhile, the phenomenon that the gold-containing melt flows back to the aeration pipeline to block the aeration pipeline is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gold wet purification, in particular to an anti-backflow pneumatic gold molten liquid disturbance device. Background Art

[0002] Hydrometallurgy is the process of dissolving metal minerals into alkaline or acidic aqueous solutions or organic solvents, and then refining metals and compounds through extraction, separation of impurities and extraction. Modern hydrometallurgy covers almost all metal refining except steel. Some metals have all smelting processes that belong to hydrometallurgy, but most of them use hydrometallurgy to decompose, extract and remove impurities, and finally reduce them to metals by pyrometallurgy or powder metallurgy. Typical hydrometallurgy includes tungsten, molybdenum, tantalum, niobium, cobalt, nickel, rare earth, uranium, thorium, bismuth, tin, copper, lead, zinc, titanium, manganese, vanadium, gold, silver, platinum, palladium, indium, ruthenium, osmium, iridium, germanium, gallium, etc.

[0003] Gold hydroreduction is the most important part of gold purification. At present, there is a blind spot (dead corner) at the bottom of the enamel reactor for gold hydroreduction. The stirring rod cannot stir the gold-containing molten liquid in this area evenly, so this part of the precious liquid is difficult to reduce. In addition, due to uneven stirring, the gold content in the treated waste liquid is relatively high, resulting in a waste of gold mine resources.

[0004] At present, there is a technical solution to disturb the gold-containing molten liquid by injecting compressed air. However, when aeration is stopped at the aeration end, due to the instantaneous pressure difference, the gold-containing molten liquid is easy to flow back into the aeration pipe and cause the aeration pipe to be blocked, thereby affecting the aeration operation again. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an anti-backflow pneumatic gold melt disturbance device, which can improve the disturbance and reduction rate of the gold-containing melt at the bottom of the reactor, thereby improving the gold recovery rate and reducing the waste of gold mine resources, while preventing the gold-containing melt from flowing back into the aeration pipeline and clogging the aeration pipeline.

[0006] The utility model solves the above problems through the following technical means:

[0007] A backflow prevention pneumatic gold melt disturbance device comprises a kettle body and an aeration body, wherein a discharge port and a discharge channel are arranged at the bottom of the kettle body, the aeration body is arranged between the discharge port and the discharge pipeline, a feeding hole is arranged at the center of the aeration body, and two ends of the feeding hole are respectively connected to the discharge port and the discharge pipeline; aeration holes connected to the feeding hole are arranged on the side wall of the aeration body, and a small ball bin and a large ball bin are connected to the aeration holes in sequence through a pipeline, and the large ball bin is connected to an air inlet pipe; a valve I is arranged on the pipeline between the small ball bin and the aeration hole, and a valve II is arranged on the pipeline between the large ball bin and the small ball bin.

[0008] Furthermore, the aeration holes are arranged obliquely upward.

[0009] Furthermore, the feed hole is an inverted tapered hole.

[0010] Furthermore, an upward expansion valve is installed on the discharge pipe to realize the opening and closing of the material passage hole.

[0011] Furthermore, the aeration gas is made of polytetrafluoroethylene.

[0012] Furthermore, the air inlet pipe is connected to an external air source.

[0013] A method for disturbing molten gold using the anti-backflow pneumatic molten gold disturbance device comprises the following steps:

[0014] 1) Close valves I and II, and continue to blow air into the large ball bin with a small power through the air source, and then open valve II to balance the air pressure in the large ball bin and the small ball bin, that is, the air fills the large and small ball bins;

[0015] 2) Close valve II and open valve I to balance the pressure in the small ball bin and the feed hole;

[0016] 3) Close valve I and open valve II. Because the pressures of the small ball bin and the feed hole were consistent before, according to the ideal gas equation: p=nRT / V, the temperature of the large ball bin is lower than that of the small ball bin and its volume is large, so the two are balanced, making the air pressure of the small ball bin balanced with the air pressure of the large ball bin. In this way, a pressure balance zone is constructed between the aeration hole and the air inlet pipe, which prevents the reflux of gold-containing molten liquid at the moment when the aeration of the air inlet pipe stops.

[0017] Beneficial effects of the utility model:

[0018] The anti-backflow pneumatic gold melt disturbance device and method of the present application comprises a kettle body and an aeration body, wherein the bottom of the kettle body is provided with a discharge port and a discharge channel, the aeration body is provided between the discharge port and the discharge pipe, a feeding hole is provided in the center of the aeration body, and the two ends of the feeding hole are respectively connected to the discharge port and the discharge pipe; the side wall of the aeration body is provided with an aeration hole connected to the feeding hole, the aeration hole is sequentially connected to a small ball bin and a large ball bin through a pipe, and the large ball bin is connected to an air inlet pipe; a valve I is provided on the pipe between the small ball bin and the aeration hole, and a valve II is provided on the pipe between the large ball bin and the small ball bin. The device is adopted to improve the disturbance and reduction rate of the gold-containing melt at the bottom of the reactor, thereby improving the recovery rate of gold and reducing the waste of gold mine resources, while avoiding the gold-containing melt from flowing back to the aeration pipe and blocking the aeration pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0021] The utility model will be described in detail below with reference to the accompanying drawings. Figure 1 As shown: a pneumatic gold melt disturbance device for preventing backflow, comprising a kettle body 1 and an aeration body 3, wherein a discharge port 2 and a discharge channel 4 are arranged at the bottom of the kettle body, wherein the aeration body is arranged between the discharge port and the discharge pipe, and a feeding hole 6 is arranged at the center of the aeration body, and the two ends of the feeding hole are respectively connected with the discharge port and the discharge pipe; the gold powder reduced by the gold-containing melt flows from the discharge port into the feeding hole, and then flows out through the discharge pipe. In order to avoid the accumulation of gold powder in the feeding hole, the feeding hole is designed as an inverted cone hole. The material of the aeration body is polytetrafluoroethylene.

[0022] The side wall of the aeration body is provided with an aeration hole 7 connected to the feeding hole, and the aeration hole is sequentially connected to a small ball bin 9 and a large ball bin 11 through a pipeline, and the large ball bin is connected to an air inlet pipe 12, and the air inlet pipe is connected to an external air source; a valve I8 is provided on the pipeline between the small ball bin and the aeration hole, and a valve II 10 is provided on the pipeline between the large ball bin and the small ball bin. Preferably, the aeration hole is arranged obliquely upward, which is conducive to preventing the reflux of the gold-containing molten liquid.

[0023] The discharge pipe is provided with an upward expansion valve 5 for opening and closing the material passage hole. The opening and closing of the material passage hole can be achieved by raising and lowering the upward expansion valve.

[0024] This embodiment also provides a method for disturbing molten gold using the anti-backflow pneumatic molten gold disturbance device, comprising the following steps:

[0025] 1) Close valves I and II, and continue to blow air into the large ball bin with a small power through the air source, and then open valve II to balance the air pressure in the large ball bin and the small ball bin, that is, the air fills the large and small ball bins;

[0026] 2) Close valve II and open valve I to balance the pressure in the small ball bin and the feed hole;

[0027] 3) Close valve I and open valve II. Because the pressures of the small ball bin and the feed hole were consistent before, according to the ideal gas equation: p=nRT / V, the temperature of the large ball bin is lower than that of the small ball bin and its volume is large, so the two are balanced, making the air pressure of the small ball bin balanced with the air pressure of the large ball bin. In this way, a pressure balance zone is constructed between the aeration hole and the air inlet pipe, which prevents the reflux of gold-containing molten liquid at the moment when the aeration of the air inlet pipe stops.

[0028] When aeration is required to disturb the melt, air flow is introduced into the air inlet pipe through the air source.

[0029] In summary, the anti-backflow pneumatic gold melt disturbance device and method of this embodiment, on the one hand, improves the disturbance, reduction rate and reduction efficiency of the gold-containing melt at the bottom of the reactor, thereby improving the gold recovery rate and reducing the waste of gold mine resources; on the other hand, it prevents the gold-containing melt from flowing back into the aeration pipeline and clogging the aeration pipeline.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An anti-backflow pneumatic gold melt disturbance device, comprising a kettle body and an aeration body, wherein a discharge port and a discharge channel are arranged at the bottom of the kettle body, the aeration body is arranged between the discharge port and the discharge pipe, a feeding hole is arranged at the center of the aeration body, and both ends of the feeding hole are connected to the discharge port and the discharge pipe respectively; characterized in that: The side wall of the aeration body is provided with an aeration hole connected with the feeding hole, and the aeration hole is connected with a small ball bin and a large ball bin in sequence through pipelines, and the large ball bin is connected with an air inlet pipe; a valve I is provided on the pipeline between the small ball bin and the aeration hole, and a valve II is provided on the pipeline between the large ball bin and the small ball bin.

2. The anti-backflow pneumatic gold melt disturbance device according to claim 1, characterized in that: The aeration holes are arranged obliquely upward.

3. The anti-backflow pneumatic gold melt disturbance device according to claim 2 is characterized in that: The material passing hole is an inverted tapered hole.

4. The anti-backflow pneumatic gold melt disturbance device according to claim 3 is characterized in that: An upward expansion valve for opening and closing the material passage hole is installed on the discharge pipe.

5. The anti-backflow pneumatic gold melt disturbance device according to claim 4, characterized in that: The material of the aeration gas is polytetrafluoroethylene.

6. The anti-backflow pneumatic gold melt disturbance device according to claim 5, characterized in that: The air inlet pipe is connected to an external air source.

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