Material level monitoring device
By introducing a cleaning passage and air supply component into the material level monitoring device, compressed air is used to remove material from the pressure tap, solving the problem of aluminum powder or aluminum compounds clogging the pipeline and achieving stable monitoring of the material layer height and production stability.
Patent Information
- Application Number
- CN202423278150.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In the fluidized bed reaction section of dry aluminum fluoride production, aluminum powder or aluminum compounds are easily blown into the pipeline of the material level monitoring device by hydrofluoric acid gas, causing blockage and making it impossible to accurately monitor the material layer height.
A material level monitoring device was designed, comprising a monitoring component, a cleaning component, and a switching component. Compressed air is output through the cleaning passage and the air supply component to remove material from the pressure tap, thereby preventing blockage and ensuring stable monitoring of the material layer height.
It effectively prevents the pressure tapping port from becoming blocked, ensures stable monitoring of the material layer height, and guarantees production stability.
Smart Images
Figure CN223636938U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to material level monitoring technical field, concretely relates to a material level monitoring device. BACKGROUND
[0002] In the fluidized bed reaction section of dry method aluminum fluoride production, aluminum powder or aluminum compound enters the fluidized bed through the feed inlet, and forms a material layer in the fluidized bed, fluorine gas or hydrofluoric acid gas enters the fluidized bed from the bottom of the fluidized bed and reacts with the material layer to generate aluminum fluoride.
[0003] A material level monitoring device needs to be arranged in the fluidized bed to monitor the height of the material layer, so that the height of the material layer is ensured to be within the set range, and the material layer continuously reacts, the material level monitoring device calculates the height of the material layer by obtaining the air pressure in the fluidized bed, the aluminum compound reacts with the hydrofluoric acid gas after being impacted by the hydrofluoric acid gas, but the aluminum compound is in powder form and is easily blown into the pipeline of the material level monitoring device for obtaining air pressure, which blocks the pipeline, resulting in that the material level monitoring device cannot monitor the height of the material layer. SUMMARY
[0004] Therefore, the utility model provides a material level monitoring device to solve the problem that the material easily blocks the pipeline.
[0005] The utility model provides a material level monitoring device, which comprises:
[0006] A monitoring assembly comprises a pressure tapping and a detection piece, one end of the pressure tapping is connected with the detection piece, and the other end of the pressure tapping extends into the fluidized bed;
[0007] A cleaning assembly comprises a gas supply piece and a cleaning passage, one end of the cleaning passage is connected with the gas supply piece, and the other end of the cleaning passage is in communication with the pressure tapping;
[0008] A switching piece is adapted to configure the state of the pressure tapping;
[0009] In the monitoring state, the pressure tapping is in communication with the detection piece;
[0010] In the cleaning state, the pressure tapping is in communication with the cleaning passage.
[0011] In an alternative embodiment, the pressure tapping comprises a first pressure tapping and a second pressure tapping, the fluidized bed has a material layer and an air chamber, the material layer and the air chamber are connected, the first pressure tapping extends into the material layer, and the second pressure tapping extends into the air chamber.
[0012] In an alternative embodiment, the monitoring assembly further comprises a first monitoring passage and a second monitoring passage, one end of the first monitoring passage is in communication with the first pressure tapping, one end of the second monitoring passage is in communication with the second pressure tapping, the other end of the first monitoring passage and the second monitoring passage is in communication with the air supply member respectively.
[0013] In an alternative embodiment, a constant pressure device is arranged on the first monitoring passage and the second monitoring passage respectively.
[0014] In an alternative embodiment, the switching member comprises a first valve arranged on the cleaning passage, and a second valve arranged between the pressure tapping and the detecting member,
[0015] In the monitoring state, the first valve is closed, and the second valve is opened;
[0016] In the cleaning state, the second valve is closed, and the first valve is opened.
[0017] In an alternative embodiment, the cleaning passage comprises a first cleaning passage and a second cleaning passage, the first cleaning passage is in communication with the first pressure tapping, the second cleaning passage is in communication with the second pressure tapping, the other end of the first cleaning passage and the second cleaning passage is connected with the air supply member respectively.
[0018] In an alternative embodiment, the air supply member is in communication with the first cleaning passage, the second cleaning passage, the first monitoring passage and the second monitoring passage through a distribution pipeline respectively.
[0019] In an alternative embodiment, the switching member comprises a third valve arranged on the first monitoring passage and the second monitoring passage.
[0020] In an alternative embodiment, a flow meter is further arranged on the first monitoring passage and the second monitoring passage.
[0021] In an alternative embodiment, the pressure tapping is a nickel-chromium-iron-based solid solution strengthened alloy pipe.
[0022] Beneficial effects:
[0023] The utility model discloses a material level monitoring device, through setting up cleaning passage and air supply member, and cleaning passage is connected with air supply member and pressure tapping respectively, and air supply member can output compressed air to pressure tapping through cleaning passage, thereby removing the material in pressure tapping, avoids that material will block pressure tapping, is favorable to guarantee the monitoring of material layer height stability, and then guarantees the stability of production. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0025] Figure 1 Figure 1 is a schematic view of a material level monitoring device according to an embodiment of the present application.
[0026] Reference signs:
[0027] 1, detection piece; 2, gas supply piece; 3, first pressure tapping; 4, second pressure tapping; 5, first monitoring passage; 6, second monitoring passage; 7, constant pressure device; 8, first valve; 9, second valve; 10, first cleaning passage; 11, second cleaning passage; 12, distribution pipeline; 13, third valve; 14, flow meter. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0029] The embodiments of the present application will be described below in combination with Figure 1 .
[0030] According to the embodiments of the present application, a material level monitoring device is provided, which comprises a monitoring assembly, a cleaning assembly and a switching piece.
[0031] Specifically, the monitoring assembly comprises a pressure tapping and a detection piece 1, one end of the pressure tapping is connected with the detection piece 1, and the other end of the pressure tapping extends into the fluidized bed. The cleaning assembly comprises a gas supply piece 2 and a cleaning passage, one end of the cleaning passage is connected with the gas supply piece 2, and the other end of the cleaning passage is in communication with the pressure tapping. The switching piece is adapted to configure the state of the pressure tapping. In the monitoring state, the pressure tapping is in communication with the detection piece 1, and in the cleaning state, the pressure tapping is in communication with the cleaning passage.
[0032] In the embodiment, the pressure tapping port extends into the fluidized bed to obtain the pressure in the fluidized bed. In the monitoring state, the pressure tapping port is connected with the detection member 1, and the detection member 1 can calculate the material layer height by the pressure obtained through the pressure tapping port. One end of the cleaning channel is connected with the pressure tapping port, and the other end of the cleaning channel is connected with the air supply member 2. In the cleaning state, the air supply member 2 can output compressed air into the cleaning channel, and the compressed air can clean the material in the pressure tapping port out of the pressure tapping port. The switching member can switch between the monitoring state and the cleaning state. In the monitoring state, the switching member can block the cleaning channel, and in the cleaning state, the switching member can block the pipeline between the pressure tapping port and the detection member 1.
[0033] Specifically, the switching member can be manually controlled or controlled by a control system. After the monitoring state lasts for a specified time, the switching member can switch to the cleaning state, and after the cleaning state lasts for a specified time, the switching member can switch to the monitoring state for monitoring. The specified time for the monitoring state and the cleaning state to last can be changed according to specific working conditions or processes, which is not limited here.
[0034] It should be noted that by providing the cleaning channel and the air supply member 2, the cleaning channel is connected with the air supply member 2 and the pressure tapping port respectively, and the air supply member 2 can output compressed air to the pressure tapping port through the cleaning channel, so as to clean the material in the pressure tapping port, avoid the material from blocking the pressure tapping port, and facilitate to ensure the stable monitoring of the material layer height, thereby ensuring the stability of production.
[0035] In some embodiments, the switching member includes a first valve 8 arranged on the cleaning channel and a second valve 9 arranged between the pressure tapping port and the detection member 1. In the monitoring state, the first valve 8 is closed and the second valve 9 is opened. In the cleaning state, the second valve 9 is closed and the first valve 8 is opened.
[0036] In the embodiment, as shown in Figure 1 the monitoring state, the first valve 8 is closed and the second valve 9 is opened, the pressure tapping port can obtain the pressure in the fluidized bed and transmit it to the detection member 1. In the cleaning state, the second valve 9 is closed and the first valve 8 is opened, and the compressed air in the cleaning channel can be delivered to the pressure tapping port. The closed second valve 9 can prevent the compressed air from entering the detection member 1.
[0037] Preferably, the detection member 1 is a pressure transmitter.
[0038] In some embodiments, the pressure tapping port includes a first pressure tapping port 3 and a second pressure tapping port 4. The fluidized bed has a material layer and an air chamber, and the material layer and the air chamber are connected. The first pressure tapping port 3 extends into the material layer, and the second pressure tapping port 4 extends into the air chamber.
[0039] In the embodiment, as shown in Figure 1As shown, the pressure tapping ports include a first pressure tapping port 3 and a second pressure tapping port 4, one end of the first pressure tapping port 3 extends into the material layer, the other end of the first pressure tapping port 3 communicates with the detection member 1, one end of the second pressure tapping port 4 communicates with the air chamber, the other end of the second pressure tapping port 4 communicates with the detection member 1, the detection member 1 can obtain the air pressure difference through the air pressures obtained through the first pressure tapping port 3 and the second pressure tapping port 4, and the material layer height can be calculated through the air pressure difference.
[0040] In some embodiments, the monitoring assembly further includes a first monitoring passage 5 and a second monitoring passage 6, one end of the first monitoring passage 5 communicates with the first pressure tapping port 3, one end of the second monitoring passage 6 communicates with the second pressure tapping port 4, the other ends of the first passage and the second passage respectively communicate with the air supply member 2.
[0041] In the embodiment, as shown in the figure, Figure 1 one end of the first monitoring passage 5 communicates with the first pressure tapping port 3, one end of the second monitoring passage 6 communicates with the second pressure tapping port 4, the other ends of the first monitoring passage 5 and the second monitoring passage 6 respectively communicate with the air supply member 2, in the monitoring state, the air supply member 2 respectively sends compressed air into the first monitoring passage 5 and the second monitoring passage 6, the compressed air enters the material layer through the first pressure tapping port 3, the compressed air will generate negative pressure due to the blockage of the material layer, and the negative pressure will enter the detection member 1 through the pipeline; the compressed air enters the air chamber through the second pressure tapping port 4, the compressed air will generate negative pressure due to the blockage of the gas in the air chamber, and the negative pressure will enter the detection member 1 through the pipeline, the detection member 1 obtains the negative pressures transmitted by the first pressure tapping port 3 and the second pressure tapping port 4, calculates the air pressure difference, and calculates the material layer height through the air pressure difference.
[0042] It should be noted that the calculation of the material layer height through the air pressure difference is a common knowledge in the art, which will not be described here.
[0043] In some embodiments, constant pressure devices 7 are respectively arranged on the first monitoring passage 5 and the second monitoring passage 6.
[0044] In the embodiment, as shown in the figure, Figure 1 constant pressure devices 7 are respectively arranged on the first monitoring passage 5 and the second monitoring passage 6, which can ensure that the compressed air in the first monitoring passage 5 and the second monitoring passage 6 maintains constant pressure in the monitoring state.
[0045] In some embodiments, the cleaning passages include a first cleaning passage 10 and a second cleaning passage 11, the first cleaning passage 10 communicates with the first pressure tapping port 3, the second cleaning passage 11 communicates with the second pressure tapping port 4, the other ends of the first cleaning passage 10 and the second cleaning passage 11 respectively connect with the air supply member 2.
[0046] In the embodiment, as shown in the figure, Figure 1As shown in the figure, the first cleaning passage 10 and the second cleaning passage 11 are respectively provided with the first valve 8, and in the monitoring state, the first valve 8 on the first cleaning passage 10 and the second cleaning passage 11 is in the closed state, preventing the compressed air output by the gas supply member 2 from entering the first cleaning passage 10 and the second cleaning passage 11.
[0047] In the embodiment, as shown in the figure, Figure 1 The gas supply member 2 is communicated with the first cleaning passage 10, the second cleaning passage 11, the first monitoring passage 5 and the second monitoring passage 6 through the distribution pipeline 12.
[0048] In the embodiment, as shown in the figure, Figure 1 The switching member includes the third valve 13 arranged on the first monitoring passage 5 and the second monitoring passage 6. In the cleaning state, the third valve 13 on the first monitoring passage 5 and the second monitoring passage 6 is in the closed state, and the second valve 9 on the passage where the first pressure tapping 3 and the second pressure tapping 4 are connected with the detection member 1 is in the closed state, preventing the compressed air output by the gas supply member 2 from entering the first monitoring passage 5, the second monitoring passage 6 and the detection member 1.
[0049] It should be noted that in the embodiment, the first pressure tapping 3 is communicated with the first cleaning passage 10 and the first monitoring passage 5 through the tee joint, and the second pressure tapping 4 is communicated with the second cleaning passage 11 and the second monitoring passage 6 through the tee joint. One end of the first monitoring passage 5 is communicated with the first pressure tapping 3 and the detection member 1 through the tee joint, and one end of the second monitoring passage 6 is communicated with the second pressure tapping 4 and the detection member 1 through the tee joint.
[0050] Specifically, the first valve 8, the second valve 9 and the third valve 13 are ball valves. In other embodiments, the first valve 8, the second valve 9 and the third valve 13 are electric control valves.
[0051] In the embodiment, the first monitoring passage 5 and the second monitoring passage 6 are further provided with the flow meter 14.
[0052] In the embodiment, the pressure tapping is a nickel-chromium-iron-based solid solution strengthened alloy pipe.
[0053] Although the embodiments of the utility model are described in combination with the figures, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A level monitoring device, characterized in that, Comprising: a monitoring assembly comprising a pressure tapping and a detecting member (1), one end of the pressure tapping being connected with the detecting member (1), the other end of the pressure tapping extending into the fluidized bed; a cleaning assembly comprising a gas supply member (2) and a cleaning passage, one end of the cleaning passage being connected with the gas supply member (2), the other end of the cleaning passage being communicated with the pressure tapping; a switching member, the switching member being adapted to configure the state of the pressure tapping; in the monitoring state, the pressure tapping is communicated with the detecting member (1); in the cleaning state, the pressure tapping is communicated with the cleaning passage.
2. The material level monitoring device according to claim 1, wherein: the pressure tapping comprises a first pressure tapping (3) and a second pressure tapping (4), the fluidized bed has a material layer and a gas chamber, the material layer and the gas chamber are connected, the first pressure tapping (3) extends into the material layer, and the second pressure tapping (4) extends into the gas chamber.
3. The material level monitoring device according to claim 2, wherein: the monitoring assembly further comprises a first monitoring passage (5) and a second monitoring passage (6), one end of the first monitoring passage (5) is communicated with the first pressure tapping (3), one end of the second monitoring passage (6) is communicated with the second pressure tapping (4), and the other ends of the first monitoring passage (5) and the second monitoring passage (6) are respectively communicated with the gas supply member (2).
4. The material level monitoring device according to claim 3, wherein: constant pressure devices (7) are respectively arranged on the first monitoring passage (5) and the second monitoring passage (6).
5. The material level monitoring device according to claim 1, wherein: the switching member comprises a first valve (8) arranged on the cleaning passage, and a second valve (9) arranged between the pressure tapping and the detecting member (1), in the monitoring state, the first valve (8) is closed, and the second valve (9) is opened; in the cleaning state, the second valve (9) is closed, and the first valve (8) is opened.
6. The material level monitoring device according to claim 3, wherein: the cleaning passage comprises a first cleaning passage (10) and a second cleaning passage (11), the first cleaning passage (10) is communicated with the first pressure tapping (3), the second cleaning passage (11) is communicated with the second pressure tapping (4), and the other ends of the first cleaning passage (10) and the second cleaning passage (11) are respectively connected with the gas supply member (2).
7. The material level monitoring device according to claim 6, wherein: the gas supply member (2) is communicated with the first cleaning passage (10), the second cleaning passage (11), the first monitoring passage (5) and the second monitoring passage (6) through a distribution pipeline (12).
8. The material level monitoring device according to claim 7, wherein: the switching member comprises a third valve (13) arranged on the first monitoring passage (5) and the second monitoring passage (6).
9. The material level monitoring device according to claim 3, wherein: Flow meters (14) are also provided on the first monitoring passage (5) and the second monitoring passage (6).
10. A level monitoring device according to any one of claims 1 to 9, characterised in that: The pressure tapping is a nickel-chromium-iron-based solid solution strengthened alloy pipe.