In-situ leaching uranium mining mine injection hole exhaust plug device

Abstract

The utility model belongs to an exhaust device, and particularly relates to an in-situ leaching uranium mining mine injection hole exhaust blocking device. According to the in-situ leaching uranium mining mine injection hole exhaust blocking device, a device main pipeline connected to a liquid injection nozzle in a sleeving mode is provided with an exhaust channel and an oxygen channel. The utility model has the obvious effects that: when the gas blockage phenomenon occurs in the injection hole, the gas blockage injection hole exhaust work can be completed by opening and closing the valve by a single person, so that the danger when a pipeline flange is dismounted is avoided, and the investment of maintenance personnel is reduced. The time for exhausting and blocking a single injection hole is shortened to 0.5 hour from 2 hours, the number of operators is reduced to 1 from 2, the labor cost and the time cost for exhausting and blocking the injection hole are saved, and the working efficiency of the operators is improved.

Description

Technical Field

[0001] This invention pertains to exhaust devices, specifically an exhaust plug device for injection holes in uranium leaching mines. Background Technology

[0002] In CO2+O2 in-situ leaching uranium mines, a centralized control room is used for the injection of leaching solution. The leaching solution enters the centralized control room through the main injection pipe, and then is injected into individual injection holes through the injection branch pipe. After the leaching solution injection flow rate is stabilized, oxygen is injected through an oxygen mixing device to fully mix the oxygen with the leaching agent and inject them together into the underground ore layer to react with the underground ore layer.

[0003] However, this oxygen injection method also has drawbacks. When the injection flow rate decreases or the oxygen flow rate suddenly increases, air blockage can occur in the injection port of the central control room. The injection flow rate will gradually decrease or even drop to zero, making it impossible to inject the solvent. To vent the air-blocked injection port, the flange of the injection pipeline in the central control room needs to be removed. By removing the flange, the injection branch pipe can be vented. Only after the oxygen in the injection branch pipe is completely purged can the single-port normal operation be restored.

[0004] To reduce the difficulty and time of venting gas plugging injection holes and improve personnel efficiency, a gas plugging device for injection holes in in-situ leaching uranium mines was designed. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a venting plug device for injection holes in uranium leaching mines.

[0006] This invention is achieved as follows: a venting plugging device for injection holes in uranium leaching mines, wherein a main pipe of the device is sleeved on the injection nozzle, and an exhaust channel and an oxygen channel are respectively provided on the main pipe of the device.

[0007] The above-described venting plugging device for uranium injection holes in in-situ leaching mines includes an venting channel comprising an venting pipe and an venting valve installed on the venting pipe.

[0008] The above-described venting plugging device for uranium injection holes in in-situ leaching mines includes an venting valve and an venting hose.

[0009] The above-described venting plugging device for uranium injection holes in in-situ leaching mines includes an oxygen channel comprising an oxygen pipe with an oxygen pipe valve installed on the oxygen pipe.

[0010] The above-described venting plugging device for uranium injection holes in in-situ leaching mines includes an injection nozzle and an injection valve that are fixedly connected.

[0011] The above-described venting plugging device for uranium injection holes in in-situ leaching mines, wherein the injection nozzle is fixedly connected to the main pipeline of the device.

[0012] The above-described venting plugging device for uranium injection holes in in-situ leaching mines includes an oxygen pipe valve connected to an external oxygen source.

[0013] The above-described venting plugging device for uranium injection holes in in-situ leaching mines includes an venting hose that is connected to the external atmosphere.

[0014] The significant advantage of this new design is that when air blockage occurs in the injection port, the air blockage can be vented by a single person simply by operating the valve. This not only avoids the dangers of removing pipeline flanges but also reduces the number of maintenance personnel required. The venting time for a single injection port is reduced from 2 hours to 0.5 hours, and the number of operators is reduced from 2 to 1, saving labor and time costs and improving work efficiency. Attached Figure Description

[0015] Figure 1 Front view of the vent plug device.

[0016] In the diagram: ① Injection valve; ② Injection nozzle; ③ Oxygen tubing; ④ Oxygen tubing valve; ⑤ Exhaust pipe; ⑥ Exhaust valve; ⑦ Exhaust hose Detailed Implementation

[0017] A venting and plugging device for injection holes in in-situ uranium leaching mines, as shown in the figure, mainly comprises ① an injection valve, ② an injection nozzle, ③ an oxygen pipe, ④ an oxygen pipe valve, ⑤ an exhaust pipe, ⑥ an exhaust valve, and ⑦ an exhaust hose. By designing this venting and plugging device, when venting the injection hole, it is not necessary to remove the original injection pipeline; only the opening and closing state of the exhaust valve on the exhaust pipe needs to be adjusted, allowing a single person to perform the venting and plugging work.

[0018] The general method of using the vent plug device for the injection hole in this application is as follows:

[0019] Step 1: Close oxygen valve ④ to stop oxygen supply;

[0020] Step 2: Close the injection valve ① above the injection nozzle ② to stop the injection operation;

[0021] Step 3: Open the exhaust valve ⑥. Due to the principle of pressure difference, the gas in the injection pipe passes through the exhaust pipe ⑤ and the exhaust valve ⑥, and is finally discharged through the exhaust hose ⑦.

[0022] Step 4: After the venting of the injection port is completed, close the venting valve ⑥, open the injection valve ① above the injection nozzle ②, and after the injection flow rate stabilizes, open the oxygen pipe valve ④ to resume oxygen injection at the injection port. The injection port will then return to normal operation.

Claims

1. A borehole gas venting plug for an in-situ leaching uranium mine, characterised by: The device main pipe is sleeved on the liquid injection nozzle (2), and an exhaust passage and an oxygen passage are arranged on the device main pipe.

2. An in-situ leachable uranium mine borehole gas venting plug according to claim 1, characterised in that: The exhaust passage comprises an exhaust pipe (5), and an exhaust valve (6) is arranged on the exhaust pipe (5).

3. An in-situ leachable uranium mine borehole gas venting plug according to claim 2, characterised in that: The exhaust valve (6) is communicated with an exhaust hose (7).

4. An in-situ leachable uranium mine borehole gas venting plug according to claim 3, characterised in that: The oxygen passage comprises an oxygen pipe (3), and an oxygen pipe valve (4) is arranged on the oxygen pipe (3).

5. An in-situ leachable uranium mine borehole gas venting plug means as claimed in claim 4 wherein: The liquid injection nozzle (2) is fixedly connected with the liquid injection valve (1).

6. An in-situ leachable uranium mine borehole gas venting plug means as claimed in claim 5 wherein: The liquid injection nozzle (2) is fixedly connected with the device main pipe.

7. An in-situ leachable uranium mine borehole gas venting plug means as claimed in claim 6 wherein: The oxygen pipe valve (4) is communicated with an external oxygen source.

8. A borehole gas venting plug for a in-situ leaching uranium mine according to claim 7, characterised in that: The exhaust hose (7) is communicated with an external atmosphere.

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