Pool liquid level measuring equipment for rare earth hydrometallurgy process

Abstract

The utility model discloses ground pool liquid level measuring equipment for a rare earth wet smelting process. The ground pool liquid level measuring equipment comprises a corrosion-resistant supporting rod, a corrosion-resistant barrel, a corrosion-resistant communicating pipe and a pressure transmitter, one end of the corrosion-resistant supporting rod is fixed at the bottom of the ground pool, and the other end is positioned above the top of the ground pool; one side of the corrosion-resistant barrel is fixed to the lower portion of the corrosion-resistant supporting rod; one end of the corrosion-resistant barrel is connected with one end of the corrosion-resistant communicating pipe, and the other end of the corrosion-resistant barrel is a free end and is close to the bottom of the ground pool; the other end of the corrosion-resistant communicating pipe is positioned above the top of the ground pool and is connected with a pressure transmitter; and the pressure transmitter is used for detecting the change of air pressure in the corrosion-resistant communicating pipe. The liquid level measuring equipment can be used for real-time measurement of the liquid level of a used pool in the rare earth wet smelting production process.

Description

Technical Field

[0001] The utility model relates to a ground pool liquid level measuring device for a rare earth hydrometallurgy process. Background Art

[0002] During the production process of rare earth hydrometallurgy, there are a large number of industrial liquids such as corrosive, high-temperature water-vapor-containing, and oil-containing wastewater, which need to be stored in a ground pool. The liquid level height of the ground pool needs to be monitored in real time.

[0003] Currently, due to adverse factors such as corrosion of electronic devices and water-vapor conditions, the liquid level gauges on the market can basically not be used for a long time and need to be replaced frequently. This situation not only causes a large amount of economic losses but also increases the work intensity of maintenance personnel. Moreover, due to unstable measurement signals, there is a hidden danger of causing major personal and equipment safety accidents.

[0004] CN212007407U discloses a liquid level measuring device suitable for harsh environments, including a liquid level gauge body, a cable, a sensor probe, a water bag, and a hose clamp. The sensor probe is connected to the liquid level gauge body through the cable. The water bag is sleeved on one end of the sensor probe away from the cable and is locked by the hose clamp. This liquid level gauge needs to place the sensor probe below the liquid surface, and the damage rate is relatively high. In addition, its structure is still relatively complex and the cost is slightly high, which is not conducive to popularization and application.

[0005] CN210625808U discloses a liquid level measuring device, including a main body fixed on the top of a tank. There is an installation opening on the top of the tank, and a connecting flange connected through an installation plate is arranged on the installation opening. The connecting flange is fixed to the installation plate through a threaded connector. The main body includes a rod body, a dashboard, and a floating ball. The rod body is fixed in the tank through the connecting flange. The dashboard is arranged at the upper end of the rod body. The floating ball is sleeved on the rod body. A cover body covering the dashboard is arranged on the installation plate. A connecting plate is arranged at the bottom of the cover body, and the other end of the connecting plate is provided with a flanging. A light-shielding layer and a protective layer are arranged on the cover body. This liquid level gauge focuses on the protection of the dashboard, and the corrosion resistance of the part extending into the liquid is still insufficient. In addition, the structure of this liquid level gauge is also relatively complex.

[0006] CN217542074U discloses a highly sealed magnetic flap liquid level measuring device suitable for harsh environments, including a buoyancy cylinder. An outer wall of one side of the buoyancy cylinder is provided with a flap box. A plurality of flap plates are arranged inside the flap box. A red display piece is arranged on an outer wall of one side of the flap plate, and a white display piece is arranged on an outer wall of the flap plate away from the red display piece. An upper flange is arranged at the top end of the buoyancy cylinder, and a lower flange is arranged at the bottom end of the buoyancy cylinder. A sewage discharge port is arranged at the center position of the bottom of the buoyancy cylinder, and a bottom end of the sewage discharge port penetrates to the outside of the lower flange. A magnetic float is arranged at the center position inside the buoyancy cylinder. The structure of this liquid level gauge is still relatively complex and the cost is slightly high. Summary of the Invention

[0007] In view of this, an object of the present invention is to provide a ground pool liquid level measuring device for a rare earth hydrometallurgy process, which can be applicable to the liquid level measurement of the ground pool under harsh working conditions in the rare earth hydrometallurgy production process, and ensures the continuity, stability and reliability of the liquid level measurement.

[0008] The present invention adopts the following technical solutions to achieve the above object.

[0009] The present invention provides a ground pool liquid level measuring device for a rare earth hydrometallurgy process, including a corrosion-resistant support rod, a corrosion-resistant cylinder body, a corrosion-resistant connecting pipe and a pressure transmitter;

[0010] One end of the corrosion-resistant support rod is fixed to the bottom of the ground pool, and the other end is located above the top of the ground pool; the corrosion-resistant support rod is used to support the corrosion-resistant cylinder body;

[0011] One side of the corrosion-resistant cylinder body is fixed to the lower part of the corrosion-resistant support rod; one end of the corrosion-resistant cylinder body is connected to one end of the corrosion-resistant connecting pipe, and the other end of the corrosion-resistant cylinder body is a free end and is close to the bottom of the ground pool;

[0012] The other end of the corrosion-resistant connecting pipe is located above the top of the ground pool and is arranged to be connected to the pressure transmitter;

[0013] The pressure transmitter is used to detect the change in air pressure inside the corrosion-resistant connecting pipe;

[0014] No other instruments are provided below the liquid level of the ground pool for the liquid level measuring device.

[0015] According to the ground pool liquid level measuring device for the rare earth hydrometallurgy process of the present invention, preferably, the corrosion-resistant cylinder body and the corrosion-resistant connecting pipe are connected by a corrosion-resistant first joint.

[0016] For the ground pool liquid level measuring device of the rare earth hydrometallurgy process according to the present utility model, preferably, the corrosion-resistant cylinder body and the corrosion-resistant first joint are welded together; the corrosion-resistant connecting pipe and the corrosion-resistant first joint are welded together.

[0017] For the ground pool liquid level measuring device of the rare earth hydrometallurgy process according to the present utility model, preferably, the first joint is a quick joint.

[0018] For the ground pool liquid level measuring device of the rare earth hydrometallurgy process according to the present utility model, preferably, the corrosion-resistant connecting pipe and the pressure transmitter are connected by a corrosion-resistant second joint.

[0019] For the ground pool liquid level measuring device of the rare earth hydrometallurgy process according to the present utility model, preferably, the second joint is a quick joint.

[0020] For the ground pool liquid level measuring device of the rare earth hydrometallurgy process according to the present utility model, preferably, the outer contour of the corrosion-resistant cylinder body is cylindrical, and the corrosion-resistant support rod is arranged in a cuboid structure.

[0021] For the ground pool liquid level measuring device of the rare earth hydrometallurgy process according to the present utility model, preferably, the diameter of the corrosion-resistant cylinder body is larger than the diameter of the corrosion-resistant connecting pipe.

[0022] For the ground pool liquid level measuring device of the rare earth hydrometallurgy process according to the present utility model, preferably, the diameter of the corrosion-resistant cylinder body is more than twice the diameter of the corrosion-resistant connecting pipe.

[0023] For the ground pool liquid level measuring device of the rare earth hydrometallurgy process according to the present utility model, preferably, it further includes a PLC controller arranged outside the ground pool, which is arranged to be electrically connected to the pressure transmitter.

[0024] The pressure transmitter of the liquid level measuring device of the present utility model can be located above the liquid surface and does not contact the liquid in the ground pool. Other components can be made of corrosion-resistant materials. Therefore, the corrosion resistance of this liquid level measuring device is relatively good, and it can be used for the liquid level measurement of the ground pool under harsh working conditions in the rare earth hydrometallurgy production process, and can basically ensure the continuity, stability and reliability of the liquid level measurement. In addition, the cost of the liquid level measuring device of the present utility model is relatively low, which is conducive to popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of a ground pool liquid level measuring device for a rare earth hydrometallurgy process according to the present utility model.

[0026] The description of the reference numerals is as follows:

[0027] 1 - Ground pool; 2 - Corrosion-resistant support rod, 3 - Corrosion-resistant cylinder, 4 - Corrosion-resistant connecting pipe, 5 - Pressure transmitter. Detailed implementation mode

[0028] The following further describes the present utility model in combination with specific embodiments, but the protection scope of the present utility model is not limited thereto.

[0029] As described in the background art, a large amount of industrial liquids under harsh working conditions will be generated during the rare earth hydrometallurgical production process, and these industrial liquids will also contain a small amount of solids. These industrial liquids need to be stored in a ground pool and then processed uniformly. Then, the liquid level in the ground pool needs to be monitored in real time.

[0030] A ground pool liquid level measuring device for a rare earth hydrometallurgical process provided by the present utility model includes a corrosion-resistant support rod, a corrosion-resistant cylinder, a corrosion-resistant connecting pipe, a pressure transmitter, and a PLC controller. And no other instruments are provided below the liquid level of the ground pool for the liquid level measuring device of the present utility model. The following is a detailed description.

[0031] <Corrosion-resistant support rod>

[0032] The corrosion-resistant support rod can be vertically fixed in the ground pool. One end of the corrosion-resistant support rod is fixed to the bottom of the ground pool, and the other end is located above the top of the ground pool, that is, the other end is located outside the ground pool. The length of the corrosion-resistant support rod can be adjusted according to the depth of the ground pool. The length of the corrosion-resistant support rod is definitely greater than the depth of the ground pool. The corrosion-resistant support rod can be formed of a corrosion-resistant material. For example, the corrosion-resistant material can be stainless steel, nickel-based alloy, etc. In this way, the corrosion resistance is good, the service life is extended, and the replacement cost is reduced.

[0033] The corrosion-resistant support rod is set to at least support the corrosion-resistant cylinder. In some embodiments, the corrosion-resistant support rod can be used to support the corrosion-resistant cylinder. In other embodiments, the corrosion-resistant support rod can be used to support the corrosion-resistant cylinder and the corrosion-resistant connecting pipe. In still other embodiments, the corrosion-resistant support rod can be used to support the corrosion-resistant cylinder, the corrosion-resistant connecting pipe, and the pressure transmitter.

[0034] In the present utility model, the shape of the corrosion-resistant support rod is not particularly limited. For example, it can be cylindrical, cylindrical, or cuboid structure. According to an embodiment of the present utility model, the corrosion-resistant support rod is set to be a cuboid structure.

[0035] <Corrosion-resistant cylinder and corrosion-resistant connecting pipe>

[0036] One side of the corrosion-resistant cylinder body is fixed to the lower part of the corrosion-resistant support rod. Specifically, one side of the corrosion-resistant cylinder body is fixed to the side wall of the lower part of the corrosion-resistant support rod. One end of the corrosion-resistant cylinder body is connected to one end of the corrosion-resistant connecting pipe, and the other end of the corrosion-resistant cylinder body is a free end and is close to the bottom of the ground pool. This is conducive to the industrial liquid in the ground pool to be measured entering the corrosion-resistant cylinder body to measure the liquid level height, and makes the corrosion-resistant performance of the liquid level measuring device good, which can extend the service life and reduce the replacement cost.

[0037] In the present utility model, the corrosion-resistant cylinder body can be a corrosion-resistant cylinder body formed by polyvinyl chloride (PVC), random copolymer polypropylene (PPR) or polyvinylidene fluoride (PVDF). In some specific embodiments, the corrosion-resistant cylinder body is a polyvinyl chloride corrosion-resistant cylinder body. In some other specific embodiments, the corrosion-resistant cylinder body is a random copolymer polypropylene corrosion-resistant cylinder body. In still some other specific embodiments, the corrosion-resistant cylinder body is a polyvinylidene fluoride corrosion-resistant cylinder body. This can be applicable to harsh environments and improve the corrosion-resistant performance.

[0038] In the present utility model, the shape of the corrosion-resistant cylinder body is not particularly limited. According to an embodiment of the present utility model, the outer contour of the corrosion-resistant cylinder body is cylindrical.

[0039] In the present utility model, the corrosion-resistant connecting pipe is selected from polyurethane pipes or polytetrafluoroethylene pipes. This is more corrosion-resistant.

[0040] In the present utility model, the length of the corrosion-resistant connecting pipe can be adjusted according to the depth of the ground pool. The length of the corrosion-resistant connecting pipe can be greater than the depth of the ground pool.

[0041] In the present utility model, the diameter of the corrosion-resistant cylinder body is greater than the diameter of the corrosion-resistant connecting pipe. According to an embodiment of the present utility model, the diameter of the corrosion-resistant cylinder body is more than twice the diameter of the corrosion-resistant connecting pipe.

[0042] According to an embodiment of the present utility model, the corrosion-resistant cylinder body and the corrosion-resistant connecting pipe are connected by a corrosion-resistant first joint. The first joint can be a quick joint. The material of the first joint can be the same as the material of the corrosion-resistant cylinder body.

[0043] According to a specific embodiment of the present utility model, the corrosion-resistant cylinder body and the corrosion-resistant connecting pipe are welded together by a corrosion-resistant first joint. More specifically, the corrosion-resistant cylinder body and the corrosion-resistant first joint are welded together; the corrosion-resistant connecting pipe and the corrosion-resistant first joint are welded together.

[0044] In the present utility model, the corrosion-resistant connecting pipe can also be fixed to the corrosion-resistant support rod by a fixing member. In some specific embodiments, the corrosion-resistant connecting pipe is fixed to the corrosion-resistant support rod by polytetrafluoroethylene raw tape.

[0045] In the present utility model, a corrosion-resistant cylinder body and a corrosion-resistant connecting pipe are connected in communication. During use, the lower end of the corrosion-resistant cylinder body does not contact the bottom of the ground pool, and air or liquid can enter the corrosion-resistant cylinder body from the free end and then enter the corrosion-resistant connecting pipe. The diameter of the corrosion-resistant cylinder body is larger than that of the corrosion-resistant connecting pipe. In this way, when a small amount of solids enter, it is not easy to block the corrosion-resistant cylinder body.

[0046] <Pressure transmitter>

[0047] The pressure transmitter is connected to one end of the corrosion-resistant connecting pipe away from the corrosion-resistant cylinder body. That is, one end of the corrosion-resistant connecting pipe is connected to the corrosion-resistant cylinder body, and the other end of the corrosion-resistant connecting pipe is connected to the pressure transmitter. More specifically, the lower end of the corrosion-resistant connecting pipe is connected to the upper end of the corrosion-resistant cylinder body, and the upper end of the corrosion-resistant connecting pipe is connected to the pressure transmitter. Since the upper end of the corrosion-resistant connecting pipe is located above the top of the ground pool, the pressure transmitter is also located above the top of the ground pool. During use, the pressure transmitter (belonging to an electronic component) is located above the liquid level, does not contact the liquid, is not easily damaged, and is more corrosion-resistant.

[0048] According to an embodiment of the present utility model, the pressure transmitter and the corrosion-resistant connecting pipe are connected through a second joint. The second joint can be a quick joint. The material of the second joint can be the same as that of the corrosion-resistant connecting pipe.

[0049] Before use, both the corrosion-resistant connecting pipe and the corrosion-resistant cylinder body are filled with air. During use, the liquid level measuring device enters the industrial liquid, the liquid level submerges the bottom of the corrosion-resistant cylinder body, and the air is squeezed upward along the corrosion-resistant cylinder body and the corrosion-resistant connecting pipe. The pressure transmitter connected to the corrosion-resistant connecting pipe will detect the pressure change and can output a signal. The diaphragm pressure of the pressure transmitter is proportional to the change in the liquid level height.

[0050] In the present utility model, the pressure transmitter is not particularly limited and those known ones can be adopted, which will not be elaborated here.

[0051] <PLC controller>

[0052] The PLC controller is located outside the ground pool. The PLC controller is electrically connected to the pressure transmitter and is used to receive the output signal of the pressure transmitter and output the liquid level measurement result. In this way, the liquid level measurement result can be obtained in real time.

[0053] In the present utility model, the PLC controller can adopt those known ones, which will not be elaborated here.

[0054] Example 1

[0055] Figure 1 It is an overall schematic diagram of the ground pool liquid level measuring device for a rare earth hydrometallurgy process of the present utility model.

[0056] As shown Figure 1 in the figure, the ground pool liquid level measuring device for a rare earth hydrometallurgy process in this embodiment includes a corrosion-resistant support rod 2, a corrosion-resistant cylinder 3, a corrosion-resistant connecting pipe 4, a pressure transmitter 5, and a PLC controller (not shown); there are no other instruments below the ground pool liquid level.

[0057] In this embodiment, the corrosion-resistant support rod 2 can support the corrosion-resistant cylinder 3 and the corrosion-resistant connecting pipe 4. As shown Figure 1 in the figure, the corrosion-resistant support rod 2 is vertically fixed in a ground pool 1 that can hold industrial liquids generated during the rare earth hydrometallurgy production process. Specifically, one end of the corrosion-resistant support rod 2 is fixed to the bottom of the ground pool 1, and the other end is located outside the ground pool 1, that is, above the top of the ground pool 1. In this embodiment, the corrosion-resistant support rod 2 has a cuboid structure.

[0058] The corrosion-resistant cylinder 3 can have a cylindrical structure. One side of the corrosion-resistant cylinder 3 is fixed to the corrosion-resistant support rod 2. The corrosion-resistant cylinder 3 is vertically arranged. Specifically, one side of the corrosion-resistant cylinder 3 is connected to one side of the lower part of the corrosion-resistant support rod 2. One end of the corrosion-resistant cylinder 3 is connected to the corrosion-resistant connecting pipe 4, and the other end is a free end. Specifically, the upper end of the corrosion-resistant cylinder 3 is connected to one end of the corrosion-resistant connecting pipe 4, and the lower end of the corrosion-resistant cylinder 3 is close to the bottom of the ground pool 1 but does not touch it, and there is a distance between them. The corrosion-resistant cylinder 3 can be selected from one of a polyvinyl chloride corrosion-resistant cylinder, a random copolymer polypropylene corrosion-resistant cylinder, and a polyvinylidene fluoride corrosion-resistant cylinder, and has good corrosion resistance.

[0059] One end of the corrosion-resistant connecting pipe 4 is connected to the corrosion-resistant cylinder 3, and the other end is connected to the pressure transmitter 5. Specifically, the lower end of the corrosion-resistant connecting pipe 4 is connected to the upper end of the corrosion-resistant cylinder 3, and the upper end of the corrosion-resistant connecting pipe 4 is connected to the pressure transmitter 5. The upper end of the corrosion-resistant connecting pipe 4 is located outside the ground pool 1, that is, completely above the top of the ground pool 1. The corrosion-resistant connecting pipe 4 is selected from a polyurethane pipe (PU pipe) or a polytetrafluoroethylene pipe (PTFE pipe). For example, it can be a polytetrafluoroethylene pipe. In this embodiment, the corrosion-resistant connecting pipe 4 can be fixed to the corrosion-resistant support rod 2 through polytetrafluoroethylene raw tape.

[0060] The corrosion-resistant cylinder 3 and the corrosion-resistant connecting pipe 4 are connected by a first joint and are welded together in sequence. The first joint can be a quick joint. The diameter of the corrosion-resistant cylinder 3 is larger than that of the corrosion-resistant connecting pipe 4. The corrosion-resistant connecting pipe 4 and the pressure transmitter 5 are connected by a second joint, and the second joint can be a quick joint. The materials of the quick joints are all corrosion-resistant materials and can be the same as the materials of the corrosion-resistant cylinder 3 or the corrosion-resistant connecting pipe 4.

[0061] The pressure transmitter 5 is located above the top of the ground pool 1. That is, the pressure transmitter 5 can be far away from the industrial liquid, not in contact with the industrial liquid, and is not easily damaged, making the corrosion resistance of the liquid level measuring device better. Figure 1 In it, p represents pressure.

[0062] The PLC controller is used to receive the output signal of the pressure transmitter 5 and output the liquid level measurement result.

[0063] The following introduces the working principle of the liquid level measuring device of the present utility model:

[0064] Before use, there is air in both the corrosion-resistant connecting pipe 4 and the corrosion-resistant cylinder body 3, and the pressure transmitter 5 shows no pressure change, that is, the normal atmospheric pressure. When the liquid level measuring device is placed in the ground pool 1 and fixed, when measuring the liquid level, the industrial liquid in the ground pool 1 enters the corrosion-resistant cylinder body 3, thereby squeezing the air upward along the corrosion-resistant cylinder body 3 and the corrosion-resistant connecting pipe 4. The pressure transmitter 5 detects the pressure change. As the height of the industrial liquid changes, the gas pressure is different. The diaphragm pressure of the pressure transmitter 5 is proportional to the liquid level height. The output signal of the pressure transmitter 5 is connected to the PLC controller, and the PLC controller outputs the liquid level measurement result, so that the liquid level change can be detected in real time.

[0065] The present utility model is not limited to the above embodiments. Without departing from the essence of the present utility model, any deformation, improvement, or replacement that those skilled in the art can think of falls within the scope of the present utility model.

Claims

1. A ground pool liquid level measuring device for a rare earth hydrometallurgy process, characterized in that It includes a corrosion-resistant support rod, a corrosion-resistant cylinder body, a corrosion-resistant connecting pipe, a pressure transmitter and a PLC controller; The corrosion-resistant support rod is set in a cuboid structure. One end of the corrosion-resistant support rod is fixed to the bottom of the ground pool, and the other end is located above the top of the ground pool; the length of the corrosion-resistant support rod is definitely greater than the depth of the ground pool; the corrosion-resistant support rod is used to support the corrosion-resistant cylinder body; The outer contour of the corrosion-resistant cylinder body is cylindrical; one side of the corrosion-resistant cylinder body is fixed to the lower part of the corrosion-resistant support rod; one end of the corrosion-resistant cylinder body is connected to one end of the corrosion-resistant connecting pipe through a corrosion-resistant first joint, and the other end of the corrosion-resistant cylinder body is a free end and is close to the bottom of the ground pool; The corrosion-resistant connecting pipe is fixed to the corrosion-resistant support rod through a fixing member; the other end of the corrosion-resistant connecting pipe is located above the top of the ground pool and is set to be connected to the pressure transmitter through a corrosion-resistant second joint; The diameter of the corrosion-resistant cylinder body is more than twice the diameter of the corrosion-resistant connecting pipe; The pressure transmitter is used to detect the change of air pressure in the corrosion-resistant connecting pipe; No other instruments are provided below the liquid level of the ground pool for the liquid level measuring device; The PLC controller is set outside the ground pool and is set to be electrically connected to the pressure transmitter.

2. The liquid level measuring device according to claim 1, characterized in that, The corrosion-resistant cylinder body and the corrosion-resistant first joint are welded together; the corrosion-resistant connecting pipe and the corrosion-resistant first joint are welded together.

3. The liquid level measuring device according to claim 2, characterized in that, The first joint is a quick joint.

4. The liquid level measuring device according to claim 3, characterized in that, The second joint is a quick joint.

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