Liquid leakage alarm device for neutral leaching oxygenation valve

Abstract

The utility model relates to the technical field of neutral leaching of in-situ leaching uranium mining, and particularly discloses a liquid leakage alarm device for a neutral leaching oxygenation valve. The device comprises a first check valve, a second check valve, a magnetic balance rolling ball, an induction electrode and a control circuit box, the first check valve and the second check valve are oppositely arranged in parallel, and gas is exhausted after sequentially passing through the first check valve and the second check valve. A magnetic balance rolling ball is arranged in a gas channel perpendicular to a movement route of the first check valve and the second check valve and can roll in the gas channel; the right end of the magnetic balance rolling ball is provided with an induction electrode, and the induction electrode is connected with the control circuit box through a cable. And an alarm signal is triggered through reverse movement of the magnetic balance rolling ball, a worker is reminded to clean the check valve, calcium carbonate precipitation is effectively prevented from being formed in the oxygen pipeline, the equipment use efficiency is improved, the labor cost is reduced, and good economic benefits are generated.

Description

Technical Field

[0001] The utility model belongs to the technical field of in-situ leaching uranium neutral leaching, and particularly relates to a liquid leakage alarm device for a neutral leaching oxygen addition valve. Background Art

[0002] The CO2+O2 neutral leaching process is the most advanced and environmentally friendly in-situ leaching uranium technology for sandstone uranium deposits at home and abroad. This technology uses CO2 and O2 as leaching agents. The prepared leaching solution of CO2 and O2 is injected into the ore-bearing aquifer through drilling and reacts with uranium minerals to form uranium-containing leaching solution. The leaching solution is lifted to the surface for treatment through boreholes. Since the solubility of O2 is relatively low at normal temperature and pressure, high-pressure injection devices are generally used to increase its solubility when preparing O2 in the solution. During the uranium mining process, at the oxygen addition inlet, due to pressure changes, the leaching solution often flows back to the oxygen addition pipe and enters the gas flowmeter, affecting the measurement of the flowmeter. At the same time, after the leaching solution enters the oxygen addition pipe, the pH value increases, and some calcium ions form calcium carbonate precipitation, adhering to the inner wall of the oxygen addition pipe, causing blockage. The fastest blockage occurs once every two days on average, ultimately resulting in the inability to add oxygen normally.

[0003] The check valve has been very mature in industrial pipeline applications. It is a valve that relies on the flow of the medium itself to automatically open and close the valve flap to prevent the reverse flow of the medium. Its main function is to prevent the reverse flow of the medium and the discharge of the container medium. The oxygen addition liquid check device is designed and manufactured based on the principle that different materials have different strengths and elasticities and different expansion and contraction sizes, and can be used in two different environments of liquid phase and gas phase, playing a great role in solving the blockage of the oxygen addition pipe and the inaccurate measurement of the float flowmeter due to water ingress in CO2+O2 in-situ leaching uranium. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a liquid leakage alarm device for a neutral leaching oxygen addition valve to solve the problem of automatic monitoring of the liquid inlet of the oxygen addition pipeline in view of the above deficiencies in the prior art.

[0005] To solve the above problems, the technical solution of the utility model is as follows: A liquid leakage alarm device for a neutral leaching oxygen addition valve, which includes a first check valve, a second check valve, a magnetic balance rolling ball, an induction electrode, and a control circuit box. The first check valve and the second check valve are arranged parallel and opposite to each other, and the gas is discharged after passing through the first check valve and the second check valve in sequence. A magnetic balance rolling ball is provided in the gas passage perpendicular to the movement routes of the first check valve and the second check valve, and the magnetic balance rolling ball can roll in the gas passage; an induction electrode is provided at the right end of the magnetic balance rolling ball, and the induction electrode is connected to the control circuit box through a cable.

[0006] The device further includes a housing, and the internal gas route of the housing presents a "J" shape, with the left end of the gas route being the gas outlet B and the right end being the gas inlet A.

[0007] The magnetically balanced rolling ball can float on the liquid flowing through the gas channel.

[0008] The diameter of the magnetic balance rolling ball is larger than the vent of the first check valve and the second check valve, and the diameter of the magnetic balance rolling ball is smaller than the diameter of the gas channel.

[0009] The significant advantage of this invention is that the neutral leaching oxygenation valve leakage alarm device of this invention triggers an alarm signal through the reverse movement of a magnetically balanced rolling ball, reminding staff to clean the check valve, effectively preventing the formation of calcium carbonate precipitate in the oxygen pipeline, improving equipment efficiency, reducing labor costs, and generating good economic benefits.

[0010] The specific benefits include the following aspects:

[0011] 1. Utilizing the principle of force balance, the system can automatically detect liquid backflow if the liquid changes direction, enabling remote monitoring and greatly improving work efficiency.

[0012] 2. It reduces the need for personnel to conduct inspections, saves production costs, and enables unmanned operation.

[0013] 3. Improved processes, protected equipment, optimized working environment, and eliminated safety hazards such as equipment corrosion and environmental pollution.

[0014] 4. Effectively prevents blockages caused by calcium carbonate precipitation in oxygen pipelines. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the neutral leaching oxygenation valve leakage alarm device described in this utility model;

[0016] Figure 2 This is a schematic diagram illustrating the control principle of the neutral leaching oxygenation valve leakage alarm device described in this utility model.

[0017] In the diagram: 1. Induction electrode; 2. Housing; 3. Magnetic balance rolling ball; 4. First check valve core; 5. Control circuit box; 6. Second check valve core. Detailed Implementation

[0018] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of this utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplification, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0020] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connection", "setting", "installation", "fixing", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] As Figure 1 shown, a leakage alarm device for a neutral leaching oxygen addition valve, which device includes a first check valve 4, a second check valve 6, a magnetic balance rolling ball 3, an induction electrode 1, and a control circuit box 5. The first check valve 4 and the second check valve 6 are arranged parallel and facing each other. After the gas enters the device from the gas inlet A, it passes through the first check valve 4 and the second check valve 6 in sequence and then is discharged from the device through the gas outlet B. A magnetic balance rolling ball 3 is provided in the gas passage perpendicular to the movement routes of the first check valve 4 and the second check valve 6, and the magnetic balance rolling ball 3 can roll in the gas passage; an induction electrode 1 is provided at the right end of the magnetic balance rolling ball 3, and the induction electrode 1 is connected to the control circuit box 5 through a cable;

[0023] As an embodiment, the magnetic balance rolling ball 3 can float on the liquid flowing through the gas passage;

[0024] As an embodiment, the diameter of the magnetic balance rolling ball 3 is larger than the air holes of the first check valve 4 and the second check valve 6, and the diameter of the magnetic balance rolling ball 3 is smaller than the diameter of the gas passage;

[0025] As an embodiment, the device further includes a housing 2. The internal gas route of the housing 2 presents a "U" shape. The left end of the gas route is the gas outlet B, and the right end is the gas inlet A;

[0026] As Figure 2As shown, the working principle of the neutral leaching oxygenation valve leakage alarm device is as follows: Oxygen enters the device from gas inlet A and exits from gas outlet B, passing through the first check valve 4 and the second check valve 6. Oxygen can only flow unidirectionally from gas inlet A to gas outlet B. At the same time, the magnetic balance rolling ball 3 moves with the oxygen to the left end of the gas channel. At this time, the sensing electrode 1 does not contact the magnetic balance rolling ball 3, and the sensing electrode 1 does not generate an alarm signal. When the oxygen pressure at gas inlet A is less than the liquid pressure at gas outlet B, and the second check valve 6 is damaged, the unidirectional gas movement of the device is disrupted. Liquid flows into the device from gas outlet B and flows towards gas inlet A. At this time, the liquid pushes the magnetic balance rolling ball 3 close to the sensing electrode 1 and triggers the electrode. The sensing electrode 1 sends a signal to the signal processor of the control circuit box 5, which is then processed by the PLC control system and outputs an alarm signal.

[0027] Because the magnetic balance rolling ball 3 has a certain buoyancy in the liquid, when installing vertically, ensure that gas inlet A is at the top and gas outlet B is at the bottom. After the device is installed and an alarm sounds, close gas inlet A and gas outlet B, disassemble the first check valve 4 and the second check valve 6 for repair, clean the sediment in the pipeline with oxygen, and then reinstall the first check valve 4 and the second check valve 6 for use.

[0028] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A leakage alarm device for a neutral leaching oxygenation valve, characterized in that: The device includes a first check valve (4), a second check valve (6), a magnetic balance rolling ball (3), an induction electrode (1), and a control circuit box (5). The first check valve (4) and the second check valve (6) are arranged parallel to each other and face each other. Gas is discharged after passing through the first check valve (4) and the second check valve (6) in sequence. A magnetic balance rolling ball (3) is provided in the gas passage perpendicular to the movement routes of the first check valve (4) and the second check valve (6), and the magnetic balance rolling ball (3) can roll in the gas passage. An induction electrode (1) is provided at the right end of the magnetic balance rolling ball (3), and the induction electrode (1) is connected to the control circuit box (5) through a cable.

2. The neutral leaching oxygenation valve leakage alarm device according to claim 1, characterized in that: The device further includes a housing (2). The internal gas route of the housing (2) is in a "Ji" shape. The left end of the gas route is a gas outlet B, and the right end is a gas inlet A.

3. The neutral leaching oxygenation valve leakage alarm device according to claim 1, characterized in that: The magnetic balance rolling ball (3) can float on the liquid flowing through the gas passage.

4. The neutral leaching oxygenation valve leakage alarm device according to claim 1, characterized in that: The diameter of the magnetic balance rolling ball (3) is larger than the air holes of the first check valve (4) and the second check valve (6), and the diameter of the magnetic balance rolling ball (3) is smaller than the diameter of the gas passage.

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