High fluorine rare earth material liquid precise discharging equipment

Abstract

The utility model discloses a kind of high fluorine rare earth feed liquid precision discharging equipment, it is related to high fluorine rare earth discharging equipment field, including discharging tank, discharging pipe is located in the bottom of discharging tank, discharging structure is connected with discharging pipe, stirring structure is located in discharging tank, heating structure is located on discharging tank, temperature sensor is connected with discharging tank, can measure feed liquid temperature in discharging tank, and with heating structure electric connection, flowmeter is connected with the discharging port of discharging structure;This kind of high fluorine rare earth feed liquid precision discharging equipment can realize the stable control and uniform stirring of feed liquid temperature, to ensure the fluidity of feed liquid, realize the precision flow measurement of feed liquid, ensure the stability and precision of discharging process.

Description

Technical Field

[0001] This utility model relates to the field of high fluorine rare earth feeding equipment, specifically a high fluorine rare earth liquid precise feeding equipment. Background Technology

[0002] In rare earth smelting and processing, conventional conveying equipment such as centrifugal pumps are typically used to feed rare earth slurries. However, high-fluorine rare earth slurries, due to their fluorine content, are highly corrosive, have high viscosity, and are prone to agglomeration and sedimentation. When left to stand in the tank, the slurry easily stratifies and settles, leading to uneven concentration. Furthermore, its fluidity deteriorates at low temperatures, and it is prone to crystallization. This results in problems such as blockages and poor flow stability during feeding, making it difficult to meet the precise batching requirements of rare earth processing. Utility Model Content

[0003] The purpose of this invention is to provide a high-fluorine rare earth liquid precision feeding device. This device can achieve stable control of the liquid temperature and uniform stirring, thereby ensuring the fluidity of the liquid, achieving precise flow rate measurement, and ensuring the stability and accuracy of the feeding process.

[0004] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a high-fluorine rare earth liquid precision feeding device, including a feeding tank; A discharge pipe is provided at the bottom of the discharge tank; A feeding structure, wherein the feeding structure is connected to the feeding pipe; It also includes a stirring structure, which is disposed inside the feeding tank; A heating structure is provided on the feeding tank; A temperature sensor is connected to the feeding tank to measure the temperature of the liquid inside the feeding tank and is electrically connected to the heating structure. A flow meter is connected to the discharge port of the feeding structure.

[0005] Preferably, the stirring structure includes a stirring motor, which is located at the top of the feeding tank; A stirring shaft is provided inside the feeding tank, and the top end of the stirring shaft passes through the top of the feeding tank and is connected to the output shaft of the stirring motor. A stirring paddle is located at the bottom of the stirring shaft.

[0006] Preferably, the heating structure includes a heating sleeve, which surrounds the outer wall of the feeding tank; A fixed column is coaxially disposed between the feed pipe and the stirring shaft, and the stirring paddle is disposed around the fixed column, and a heating wire is embedded in the fixed column; A connecting groove extends through the bottom of the fixed column and is connected to the feed pipe.

[0007] Preferably, the feeding structure includes a feeding valve, which is connected to the feeding pipe; A filter element is disposed between the discharge valve and the flow meter; A feed pump is located between the filter element and the flow meter.

[0008] Preferably, the system further includes a pressure sensor, which is located between the filter element and the feed pump and is electrically connected to the feed valve.

[0009] Preferably, it also includes an anti-clogging structure, which includes a flushing valve, one end of which is located between the filter element and the discharge valve, and the other end is connected to the wastewater tank; A flushing pump is provided, with its inlet connected to a clean water tank and its outlet located between the discharge valve and the discharge pump. Both the flushing valve and the flushing pump are electrically connected to the pressure sensor.

[0010] Preferably, the feed pump is a variable frequency single screw pump.

[0011] Preferably, the inner wall of the feeding tank is provided with a corrosion-resistant layer, which is made of polytetrafluoroethylene.

[0012] In summary, this utility model has the following beneficial effects: This invention prevents the agglomeration and sedimentation of the liquid through a stirring structure, and controls the liquid temperature in conjunction with a heating structure and a temperature sensor to ensure stable liquid flow and avoid fluctuations in feeding caused by uneven concentration and viscosity changes, thereby improving feeding stability. At the same time, the feeding pump can precisely adjust the flow rate, and the flow meter monitors it in real time, forming a closed-loop control to improve feeding accuracy.

[0013] This invention achieves automatic detection of blockages, shutdown protection, and flushing and unblocking through the synergistic effect of pressure sensors, filters, and anti-clogging structures, thereby reducing manual maintenance costs and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle.

[0015] In the diagram: 1. Feed tank; 2. Feed pipe; 3. Feed structure; 31. Feed valve; 32. Filter element; 33. Feed pump; 4. Stirring structure; 41. Stirring motor; 42. Stirring shaft; 43. Stirring paddle; 5. Heating structure; 51. Heating jacket; 52. Fixed column; 53. Connecting groove; 6. Temperature sensor; 7. Flow meter; 8. Pressure sensor; 9. Anti-clogging structure; 91. Flushing valve; 92. Flushing pump. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] refer to Figure 1-2 A precision feeding device for high-fluorine rare earth liquid includes a feeding tank 1, a feeding pipe 2, a feeding structure 3, a stirring structure 4, a heating structure 5, a temperature sensor 6, and a flow meter 7. The feeding tank 1 stores the high-fluorine rare earth liquid. The feeding pipe 2 is located at the bottom of the feeding tank 1 and can be welded and sealed, serving as the outlet channel for the liquid. The feeding structure 3 is connected to the feeding pipe 2 to realize the feeding of the liquid. The stirring structure 4 is assembled inside the feeding tank 1 to stir the liquid inside, preventing agglomeration and sedimentation, and ensuring uniform liquid concentration. The heating structure 5 is installed on the feeding tank 1 to heat the feeding tank 1, making the liquid flow more evenly. The liquid in the feed tank 1 is kept within a set temperature range to avoid crystallization and poor fluidity caused by low temperature. Temperature sensor 6 is fixedly connected to feed tank 1. Temperature sensor 6 can be a PT100 type resistance temperature sensor. Its probe extends into the liquid in feed tank 1 to measure the temperature of the liquid in feed tank 1 in real time. Temperature sensor 6 is also electrically connected to heating structure 5 to realize the transmission of temperature signal and automatic control of heating action, ensuring the fluidity of the liquid. Flow meter 7 is connected to the discharge port of discharge structure 3. Flow meter 7 can be an electromagnetic flow meter to monitor the discharge flow rate in real time and provide data support for accurate discharge.

[0018] Preferably, the stirring structure 4 includes a stirring motor 41, a stirring shaft 42, and a stirring paddle 43. The stirring motor 41 is fixedly installed on the top of the feeding tank 1 and can provide a power source for the stirring action. The stirring motor 41 can be a geared motor. The stirring shaft 42 is vertically installed inside the feeding tank 1, and the top end of the stirring shaft 42 passes through the sealed bearing at the top of the feeding tank 1 and is fixedly connected to the output shaft of the stirring motor 41 through a coupling to realize power transmission. The stirring paddle 43 is fixedly sleeved on the bottom of the stirring shaft 42. The stirring paddle 43 can adopt an anchor structure, and the blades of the stirring paddle 43 are set close to the bottom of the feeding tank 1, so that it can directly act on the bottom layer of the easily settled liquid and improve the uniformity of stirring.

[0019] Preferably, the heating structure 5 includes a heating sleeve 51, a fixing column 52, and a connecting groove 53. The heating sleeve 51 is tightly fitted around the outer wall of the feeding tank 1, and can achieve overall heating of the liquid in the feeding tank 1 through heat conduction, so as to maintain a suitable temperature for the liquid in the feeding tank 1 and ensure its fluidity. The fixing column 52 is coaxially arranged between the feeding pipe 2 and the stirring shaft 42, and a gap is left between its outer wall and the stirring shaft 42. The stirring paddle 43 is located around the fixing column 52, and a spiral heating wire is embedded in the fixing column 52, which can heat the surrounding area. The liquid material is locally and precisely heated to increase the temperature of the liquid material flowing out of the feed tank 1, preventing it from cooling down too quickly and affecting its fluidity. At the same time, the top of the fixed column 52 can contact the bottom of the stirring shaft 42, providing radial auxiliary support for the stirring shaft 42 and improving the stability of the stirring structure 4. The connecting groove 53 runs radially through the bottom side wall of the fixed column 52 and is connected to the feed end of the feed pipe 2, ensuring that the liquid material in the feed tank 1 can flow smoothly into the feed pipe 2 after being stirred and heated, avoiding the formation of flow dead zones.

[0020] Preferably, the feeding structure 3 includes a feeding valve 31, a filter element 32, and a feeding pump 33. The feeding valve 31 is connected to the discharge end of the feeding pipe 2 and can control the opening and closing of the feeding channel. The filter element 32 is located on the pipeline between the feeding valve 31 and the flow meter 7 and can be detachably connected by a threaded structure, which facilitates the cleaning and replacement of the filter element 32. The filter element 32 can be a filter screen with a 30-mesh stainless steel filter screen inside, which can intercept solid impurities in the liquid and prevent subsequent pipelines and equipment from being blocked. The feeding pump 33 is connected in series on the pipeline between the filter element 32 and the flow meter 7 and can provide power for the flow of the liquid and drive the liquid to be continuously fed.

[0021] Preferably, the feed pump 33 can be a variable frequency single screw pump, which can precisely control the output flow rate by adjusting the motor frequency to adapt to different feed volume requirements, and has good resistance to corrosion and viscosity changes, and is suitable for high fluorine rare earth liquid materials.

[0022] Preferably, it also includes a pressure sensor 8, which is installed on the side wall of the pipeline between the filter element 32 and the feed pump 33. The pressure sensor 8 can be a diffused silicon pressure transmitter with its probe end extending into the pipeline. The pressure sensor 8 is electrically connected to the feed valve 31 and can control the opening and closing state of the feed valve 31 by detecting changes in pipeline pressure. When the pressure sensor 8 detects an abnormal pressure, it automatically controls the feed valve 31 to close, thus avoiding overload damage to the equipment.

[0023] Preferably, it also includes an anti-clogging structure 9, which includes a flushing valve 91 and a flushing pump 92. One end of the flushing valve 91 can be connected to the pipeline between the filter element 32 and the discharge valve 31 through a three-way connector, and the other end is sealed to the wastewater tank to discharge flushing impurities. The inlet of the flushing pump 92 is connected to the clean water tank through a pipeline, and the outlet of the flushing pump 92 can be connected to the pipeline between the discharge valve 31 and the discharge pump 33 through a three-way connector. Both the flushing valve 91 and the flushing pump 92 are electrically connected to the pressure sensor 8. When the pressure sensor 8 detects a blockage signal, while controlling the discharge valve 31 to close, the flushing pump 92 and the flushing valve 91 are started to flush the filter element 32 with clean water in reverse, flushing the impurities into the wastewater tank, thereby realizing automatic blockage treatment without manual disassembly and cleaning.

[0024] Preferably, the inner wall of the feeding tank 1 may be provided with an integrally formed corrosion-resistant layer. The corrosion-resistant layer is made of polytetrafluoroethylene, which has excellent resistance to fluoride corrosion and can effectively extend the service life of the feeding tank 1 and prevent the liquid from corroding the tank body of the feeding tank 1.

[0025] Preferably, it also includes a control system, which is electrically connected to the feeding valve 31, feeding pump 33, stirring motor 41, heating structure 5, temperature sensor 6, flow meter 7, pressure sensor 8, flushing valve 91, and flushing pump 92, and can realize the automated control of the feeding equipment and improve the corresponding speed.

[0026] The specific working principle is as follows: The high-fluorine rare earth slurry is injected into the feeding tank 1, and the stirring motor 41 is started. The stirring motor 41 drives the stirring shaft 42 to rotate the stirring paddle 43 to stir the slurry and prevent the slurry from agglomerating and settling. The temperature sensor 6 detects the temperature of the slurry in real time. When the temperature is lower than the set value, the temperature sensor 6 sends a signal to the heating structure 5. The heating jacket 51 heats the slurry in the tank as a whole, and the heating wire embedded in the fixing column 52 provides local auxiliary heating of the slurry until the temperature of the slurry reaches the set range to ensure the fluidity of the slurry.

[0027] Open the discharge valve 31, and the liquid flows into the discharge structure 3 through the discharge pipe 2 and the connecting groove 53. First, it passes through the filter element 32 to filter impurities. Start the discharge pump 33 and adjust the pump frequency according to the required discharge volume to control the discharge speed. The flow meter 7 monitors the discharge flow in real time and feeds back the data to the control system. If the flow deviates from the set value, it is corrected by adjusting the frequency of the discharge pump 33 to achieve accurate discharge.

[0028] During the feeding process, the pressure sensor 8 continuously monitors the pipeline pressure between the filter element 32 and the feeding pump 33. When the filter element 32 becomes clogged due to impurities, the pipeline pressure rises abnormally. The pressure sensor 8 sends a signal to the control system, which then controls the feeding valve 31 to close, stopping the feeding process. Simultaneously, the flushing pump 92 and the flushing valve 91 are activated. Clean water from the clean water tank is pumped into the pipeline through the flushing pump 92 to backwash the filter element 32, flushing the impurities attached to the filter element 32 into the flushing valve 91, and finally discharging them into the wastewater tank. After flushing is completed, the pressure sensor 8 detects that the pressure has returned to normal. The control system then closes the flushing pump 92 and the flushing valve 91, reopens the feeding valve 31, and resumes normal feeding.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A precision feeding device for high-fluorine rare earth liquid, comprising a feeding tank (1); The feeding pipe (2) is located at the bottom of the feeding tank (1); The feeding structure (3) is connected to the feeding pipe (2); Its features are: It also includes a stirring structure (4), which is disposed inside the feeding tank (1); Heating structure (5), the heating structure (5) is provided on the feeding tank (1); Temperature sensor (6), the temperature sensor (6) is connected to the feeding tank (1), can measure the temperature of the liquid in the feeding tank (1), and is electrically connected to the heating structure (5); Flow meter (7) is connected to the discharge port of the discharge structure (3).

2. The high-fluorine rare earth liquid precision feeding device according to claim 1, characterized in that: The stirring structure (4) includes a stirring motor (41), which is located on the top of the feeding tank (1); A stirring shaft (42) is located inside the feeding tank (1), and the top end of the stirring shaft (42) passes through the top of the feeding tank (1) and is connected to the output shaft of the stirring motor (41). A stirring paddle (43) is located at the bottom of the stirring shaft (42).

3. The high-fluorine rare earth liquid precision feeding device according to claim 2, characterized in that: The heating structure (5) includes a heating sleeve (51), which is arranged around the outer wall of the feeding tank (1); A fixed column (52) is coaxially disposed between the feed pipe (2) and the stirring shaft (42), and the stirring paddle (43) is provided around the fixed column (52). A heating wire is embedded in the fixed column (52). A connecting groove (53) extends through the bottom of the fixed column (52) and is connected to the feed pipe (2).

4. The high-fluorine rare earth liquid precision feeding device according to claim 1, characterized in that: The feeding structure (3) includes a feeding valve (31), which is connected to the feeding pipe (2); A filter element (32) is disposed between the feed valve (31) and the flow meter (7); Feed pump (33) is located between the filter element (32) and the flow meter (7).

5. The high-fluorine rare earth liquid precision feeding device according to claim 4, characterized in that: It also includes a pressure sensor (8), which is located between the filter element (32) and the feed pump (33) and is electrically connected to the feed valve (31).

6. The high-fluorine rare earth liquid precision feeding device according to claim 5, characterized in that: It also includes an anti-clogging structure (9), which includes a flushing valve (91), one end of which is located between the filter element (32) and the discharge valve (31), and the other end is connected to the wastewater tank; The flushing pump (92) has its inlet connected to the clean water tank and its outlet located between the discharge valve (31) and the discharge pump (33). Both the flushing valve (91) and the flushing pump (92) are electrically connected to the pressure sensor (8).

7. The high-fluorine rare earth liquid precision feeding device according to claim 4, characterized in that: The feed pump (33) is a variable frequency single screw pump.

8. The high-fluorine rare earth liquid precision feeding device according to claim 1, characterized in that: The inner wall of the feeding tank (1) is provided with a corrosion-resistant layer, which is made of polytetrafluoroethylene.

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