Device for remotely and automatically debugging radio frequency admittance material level of ash hopper of dust remover

Abstract

The utility model relates to a device for remotely and automatically debugging a radio frequency admittance material level of an ash bucket of a dust remover, which belongs to the technical field of automatic detection and application of an ash bucket instrument of a dust remover system and comprises a working platform, a transmission device, a radio frequency admittance material level switch, a checking device, a blowing device, a junction box and a programmable logic controller (PLC) control cabinet, a transmission device, a blowing device and a checking device are arranged on the working platform, a radio frequency admittance material level switch and a junction box are arranged on the upper surface of the transmission device, a measuring hole is formed in the outer wall of the dust remover ash bucket, and the radio frequency admittance material level switch can be movably pushed into or pulled out of the measuring hole under the driving of the transmission device. The verification device and the blowing device are electrically connected with the junction box, and the junction box is connected with the PLC control cabinet through a power signal line; the device is automatically operated, the labor cost is greatly reduced, the labor efficiency is improved, and meanwhile line loss caused by repeated disassembly of the power line is avoided.

Description

Technical Field

[0001] This utility model relates to an automatic debugging device, specifically a remote automatic debugging device for radio frequency admittance level in the dust collector hopper, belonging to the field of automated detection application technology for dust collector system hopper instruments. Background Technology

[0002] A dust collector is a device that separates dust from flue gas. Dust collection hoods are installed at various dust emission points, and dust-laden gas is transported to the dust collection device through pipelines. After gas-solid separation, the dust is collected in the dust collection device, while the clean gas is introduced into the main pipe or directly discharged into the atmosphere. The entire set of equipment is a dust collection system, and the dust collector is an important component of the system. From the perspective of ventilation and dust removal, dust refers to all solid particles that can exist in a suspended state in the air for a relatively long time. It is a dispersion system called aerosol, in which air is the dispersion medium and solid particles are the dispersed phase. The dust collector separates these solid particles from the aerosol and stores them in the dust collector hopper for final collection and discharge. The dust collector hopper is equipped with dust collector hopper instruments, which are monitoring instruments for measuring and providing feedback on the temperature and dust level inside the hopper. By measuring and providing feedback data, the stable operation of the hopper is ensured. The instruments are fixed to the hopper wall with bolts. For the periodic instrument debugging and calibration, professional technicians have to go through inspection steps such as removing the instrument power cord and fixing bolts, which greatly reduces work efficiency. Moreover, repeated disassembly of the power cord can also damage the power cord and affect the normal measurement.

[0003] Therefore, developing a remote automatic dust collector hopper radio frequency admittance level device that can overcome the above defects has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a remote automatic adjustment device for the radio frequency admittance level of the dust collector hopper. This device is automated, which greatly reduces labor costs and improves labor efficiency, while avoiding line loss caused by repeated disassembly of the power cord.

[0005] To address the aforementioned technical problems, this utility model provides a remote automatic adjustment device for the radio frequency admittance level of a dust collector hopper. The device is installed on one side of the dust collector hopper and includes a working platform, a transmission device, a radio frequency admittance level switch, a calibration device, a pulse-jet device, a junction box, and a PLC control cabinet. The working platform is horizontally fixed to the outer wall of the dust collector hopper. The transmission device, pulse-jet device, and calibration device are mounted on the working platform, with the calibration device and pulse-jet device located above the transmission device. The upper surface of the transmission device is equipped with the radio frequency admittance level switch and the junction box. The radio frequency admittance level switch is located between the dust collector hopper and the junction box. A measuring hole is opened on the outer wall of the dust collector hopper. The radio frequency admittance level switch can be moved into or out of the measuring hole under the drive of the transmission device. The radio frequency admittance level switch, calibration device, and pulse-jet device are electrically connected to the junction box, which is connected to the PLC control cabinet via a power signal line.

[0006] The further defined technical solution of this utility model is:

[0007] Furthermore, in the aforementioned remote automatic dust collector hopper radio frequency admittance level device, the radio frequency admittance level switch is equipped with a sealing head, which is located at the end of the measuring rod in the radio frequency admittance level switch. The sealing head is arc-shaped and adapted to the measuring hole.

[0008] Technically, this utility model features a sealing head on the radio frequency admittance level switch, which helps to seal the ash hopper well when the radio frequency admittance level switch is pushed into the dust collector ash hopper, preventing dust from overflowing from the ash hopper.

[0009] In the aforementioned remote automatic dust collector hopper radio frequency admittance level device, the radio frequency admittance level switch is detachably mounted on the transmission device via a fixing strap.

[0010] In terms of technical effect, this utility model adopts a simple fixing strap, which is convenient for installation and disassembly.

[0011] In the aforementioned remote automatic dust collector hopper radio frequency admittance level device, the calibration device includes a bracket, a cylinder and a calibration rubber ring. The cylinder is vertically suspended above the radio frequency admittance level switch via the bracket. A piston rod is provided inside the cylinder, and a calibration rubber ring is provided at one end of the piston rod. The calibration rubber ring has a semi-circular structure that is compatible with the measuring rod in the radio frequency admittance level switch.

[0012] The calibration rubber ring moves vertically up and down under the drive of the piston rod. During calibration, the inner wall of the calibration rubber ring abuts against the outer wall of the measuring rod in the RF admittance level switch.

[0013] In terms of technical effectiveness, this utility model is equipped with a verification device to verify the radio frequency admittance level switch, check whether it can work properly, promptly identify problems and replace or repair it in time, and ensure stable operation.

[0014] In the aforementioned remote automatic adjustment dust collector hopper radio frequency admittance level device, the jetting device includes a jetting pipe, an air tank, and a pulse valve. The jetting pipe surrounds the measuring rod of the radio frequency admittance level switch. The jetting pipe has a ring structure, with several air outlets evenly distributed on one side. The pulse valve is located in the junction box. One end of the pulse valve is connected to the jetting pipe through an air pipe, and the other end is connected to the air tank located on one side of the dust collector hopper through an air pipe. The pulse valve is electrically connected to the PLC control cabinet.

[0015] In terms of technical effectiveness, this utility model adopts a pulse jet cleaning device with a ring-shaped jet pipe that surrounds the measuring rod. This allows for multi-angle and multi-directional jet cleaning of the measuring rod through the air outlet on the jet pipe, improving cleaning efficiency. Controlled by a PLC control cabinet, it boasts a high degree of automation. The pulse jet cleaning device blows onto the surface of the extracted RF admittance level switch, removing surface dust and iron filings that accumulate over time. This ensures a clean RF admittance level switch surface, resulting in sensitive and accurate measurements. Furthermore, the automated blowing method significantly reduces labor costs, improves efficiency, and minimizes equipment wear and tear caused by manual disassembly and cleaning.

[0016] In the aforementioned remote automatic dust collector hopper radio frequency admittance level device, the angle formed between the central axis of the air outlet and the central axis of the measuring rod is an acute angle, preferably 45°.

[0017] The technical effect is that the jet blowing method uses a 45° inclined fixed-point impact blowing on the RF admittance level switch measuring rod, which better cleans the surface of the measuring rod, improves the measurement accuracy, and at the same time detects whether the measuring rod is operating normally.

[0018] In the aforementioned remote automatic dust collector hopper radio frequency admittance level device, the transmission device includes a limit switch and a rodless cylinder. The rodless cylinder is equipped with cylinder covers at both ends. The rodless cylinder is mounted on the working platform through the cylinder covers. The radio frequency admittance level switch is mounted on the slider of the rodless cylinder. The rodless cylinder is electrically connected to the limit switch, and the movement position of the slider is controlled by the limit switch.

[0019] Technical advantages: This utility model uses a transmission device to drive the movement of the radio frequency admittance level switch, realizing the pushing into and pulling out of the dust collector hopper. Pushing in facilitates the completion of measurement tasks, and pulling out facilitates the jet cleaning device to complete the jet cleaning and dust removal tasks. Without the need for disassembly and assembly, it ensures measurement accuracy, improves efficiency, reduces labor intensity, and reduces costs.

[0020] In the aforementioned remote automatic commissioning dust collector hopper radio frequency admittance level device, the working platform is a steel plate, and one end of the steel plate is fixedly connected to the outer wall of the dust collector hopper.

[0021] In terms of technical benefits, this utility model uses steel plates, which have good stability and load-bearing capacity, thus contributing to the stable operation of the work.

[0022] The beneficial effects of this utility model are:

[0023] This invention utilizes a transmission device, a jetting device, and a calibration device to detect radio frequency admittance level switches, as well as to perform jetting cleaning and calibration of the radio frequency admittance level switches. The entire operation is fully automated without the need for disassembly and inspection, greatly reducing labor costs and improving labor efficiency. It also avoids line losses caused by repeated disassembly of the power cord. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the remote automatic adjustment dust collector hopper radio frequency admittance material level device of this utility model;

[0025] Figure 2 for Figure 1 Side view;

[0026] Figure 3 for Figure 1 Top view;

[0027] Figure 4 for Figure 1 Schematic diagram of the angle structure between the air outlet and the measuring rod;

[0028] Figure 5 for Figure 1 A schematic diagram of the structure of the calibration device;

[0029] In the diagram: 1-Dust collector hopper, 2-Working platform, 3-Transmission device, 31-Limit switch, 32-Rodless cylinder, 33-Cylinder cover, 4-RF admittance level switch, 41-Sealing head, 42-Measuring rod, 5-Calibration device, 51-Bracket, 52-Cylinder, 53-Calibration rubber ring, 54-Piston rod, 6-Pulse jetting device, 61-Pulse jetting pipe, 62-Air outlet, 7-Gateway box, 8-PLC control cabinet, 9-Measuring hole, 10-Fixing bandage. Detailed Implementation Example 1

[0030] This embodiment provides a remote automatic adjustment device for the radio frequency admittance level of a dust collector hopper. The device is installed on one side of the dust collector hopper 1, and a bag filter is installed at the top of the hopper. The structure is as follows: Figure 1As shown, the system includes a working platform 2, a transmission device 3, an RF admittance level switch 4, a calibration device 5, a jet cleaning device 6, a junction box 7, and a PLC control cabinet 8. The working platform 2 is made of steel plate, with one end welded and fixed to the outer wall of the dust collector hopper 1. The steel plate is horizontally positioned, and the transmission device 3, jet cleaning device 6, and calibration device 5 are mounted on it. The calibration device 5 and jet cleaning device 6 are located above the transmission device 3. The RF admittance level switch 4 and junction box 7 are mounted on the upper surface of the transmission device 3. The RF admittance level switch 4 is located between the dust collector hopper 1 and the junction box 7. A measuring hole 9 is opened on the outer wall of the dust collector hopper 1. The RF admittance level switch 4 can be moved into or out of the measuring hole 9 under the drive of the transmission device 3. The RF admittance level switch 4, the calibration device 5, and the jetting device 6 are electrically connected to the junction box 7. The junction box 7 is connected to the PLC control cabinet 8 via a power signal line. The outer wall of the dust collector hopper 1 is provided with a measuring hole 9. The PLC control cabinet 8 controls the transmission device 3 to move and drive the RF admittance level switch 4 out of the dust collector hopper 1. When the RF admittance level switch 4 passes the jetting device 6, the PLC control cabinet 8 controls the jetting device 6 to perform a dust spraying operation on the RF admittance level switch 4. The PLC control cabinet 8 controls the calibration device 5 to move downward and touch the measuring rod 42 in the RF admittance level switch 4 for calibration. The PLC control cabinet 8 controls the transmission device 3 to move and drive the RF admittance level switch 4 into the dust collector hopper 1 to complete the test.

[0031] like Figure 2 As shown, the radio frequency admittance level switch 4 is detachably mounted on the transmission device 3 via the fixing strap 10. The radio frequency admittance level switch 4 is provided with a sealing head 41, which is located at the end of the measuring rod 42 in the radio frequency admittance level switch 4. The sealing head 41 is arc-shaped and fits the measuring hole 9. When the radio frequency admittance level switch 4 is pushed into the dust collector hopper, the sealing performance is improved, and the dust in the hopper is prevented from overflowing, damaging the environment and affecting the workers.

[0032] like Figure 5As shown, the calibration device 5 includes a bracket 51, a cylinder 52, and a calibration rubber ring 53. The bracket is welded and fixed to a steel plate. The cylinder model is ACQ series, with an air pressure of 0.1MPa-1.0MPa, a stroke of 25MM, and a speed range of 30-500MM / S. The cylinder 52 is vertically suspended above the RF admittance level switch 4 via the bracket 51. A piston rod 54 is provided inside the cylinder 52, and a calibration rubber ring 53 is provided at one end of the piston rod 54. The calibration rubber ring 53 has a semi-circular structure and is connected to the RF admittance level switch 4. The measuring rod 42 in the 4-channel switch is matched, and the calibration rubber ring 53 moves vertically up and down under the drive of the piston rod 54. During calibration, the inner wall of the calibration rubber ring 53 abuts against the outer wall of the measuring rod 42 in the RF admittance level switch 4. The specific test is as follows: when the measuring rod is fully pulled out of the ash hopper wall, the calibration rubber ring above the measuring rod descends, and the rubber on the rubber ring touches the measuring rod. The RF admittance level switch remotely feeds back a signal. If the remote signal feedback indicator light is on, the level gauge is normal. If there is no remote feedback, the level switch is faulty and needs to be replaced.

[0033] like Figure 1 As shown, the blowing device 6 includes a blowing pipe 61, an air tank, and a pulse valve. The blowing pipe 61 surrounds the measuring rod 42 of the RF admittance level switch 4. The blowing pipe 61 has a ring structure, and several air outlets 62 are evenly distributed on one side of the blowing pipe 61 to perform a 45° inclined, fixed-point blowing action on the RF admittance level switch measuring rod. Figure 4 As shown, to better clean the surface of the measuring rod and improve measurement accuracy, while also checking whether the measuring rod is operating normally, the pulse valve is set in the junction box 7. One end of the pulse valve is connected to the jet pipe 61 through an air pipe, and the other end is connected to the air tank set on one side of the dust collector hopper 1 through an air pipe. The pulse valve is electrically connected to the PLC control cabinet 8.

[0034] like Figure 3 As shown, the transmission device 3 includes a limit switch 31 and a CY1S rodless cylinder 32. The rodless cylinder 32 has cylinder covers 33 at both ends. One cylinder cover is close to the dust collector hopper, and the other cylinder cover has a junction box. The rodless cylinder 33 is mounted on the working platform 2 through the cylinder cover 33. The radio frequency admittance level switch 4 is mounted on the slider of the rodless cylinder 32. The slider drives the movement of the radio frequency admittance level switch 4. The rodless cylinder 32 is electrically connected to the limit switch 31, and the limit switch 31 controls the movement position of the slider.

[0035] The wiring methods for each component are as follows:

[0036] The lead wires (including power and signal wires) of the RF admittance level switch are connected to the terminal block in the junction box. The other end of the terminal block is connected to the PLC control cabinet. The power wire is connected to the power switch of the control cabinet, and the signal wire is connected to the DCS in the control cabinet. When the power switch is closed, the RF admittance level switch runs. When powder comes into contact with the measuring rod of the RF admittance level switch, the signal wire sends a signal to the DCS, and the indicator light illuminates.

[0037] The calibration device and transmission device are connected by a pneumatically controlled cylinder for extension and retraction. The air intake and exhaust are controlled by a pneumatic solenoid valve. A two-position five-way 24V solenoid valve is selected. The solenoid valve is powered by the PLC control cabinet rail power supply. The working mode is as follows: when the device is running, the PLC gives a command, the DCS controls the contactor to engage, the contactor is energized and supplies power to the rail, thereby energizing the solenoid valve, the solenoid valve starts to intake air, and the device cylinder starts to move.

[0038] The blowing device is similar to the calibration device, and is controlled by a pulse valve.

[0039] The power and signal lines of the limit switch are connected to the terminal block, and the other end is connected to the PLC. The power line is connected to the power switch, and the signal line is connected to the DCS. When the measuring rod is pulled out, the limit switch is energized, and the signal is transmitted to the DCS. When the PLC receives the signal, the transmission device stops operating.

[0040] In practice, the junction box is fixed at the end of the CY1S rodless cylinder transmission device. The power line and control line are connected to each actuator and the RF admittance level switch through the terminal block inside the junction box. Commands are transmitted to the PLC control cabinet remotely.

[0041] The first step is to control the CY1S rodless cylinder transmission device to retract by the PLC, so that the measuring rod of the radio frequency admittance level switch is completely pulled out of the dust collector hopper. When it is completely pulled out, the limit switch is activated and the rodless cylinder stops.

[0042] The second step is that when the CY1S rodless cylinder transmission device reaches a certain distance and passes the pulse blowing device, the PLC controls the pulse blowing device. By controlling the opening and closing of the pulse valve, the gas in the air tank can be controlled. Compressed air is sprayed out from the air outlet to clean the surface of the measuring rod. The RF admittance level switch measuring rod is subjected to 45° inclined fixed-point blowing by pulse blowing around the CY1S rodless cylinder transmission device.

[0043] The third step is that after the blowing is completed, the cylinder in the measuring device moves, the rubber pad on the verification rod in the PLC-controlled verification device touches the measuring rod, and a remote feedback signal is sent to verify whether the measuring rod is working properly. The measuring rod cylinder retracts to the initial position, and the verification stops.

[0044] The fourth step involves the PLC controlling the CY1S rodless cylinder transmission device to push the RF admittance level switch into the dust collector hopper for dust measurement.

[0045] The entire process is fully automated, which greatly reduces labor costs, improves labor efficiency, and avoids line damage caused by repeatedly disconnecting and reconnecting the power cord.

[0046] In addition to the embodiments described above, this utility model may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A remote automatic commissioning dust collector hopper RF admittance level device, which is arranged on one side of a dust collector hopper (1), characterized in that: The utility model provides a kind of dust collector ash bucket level measurement device, including work platform (2), transmission (3), radio admittance material position switch (4), calibration device (5), spray blowing device (6), junction box (7) and PLC control cabinet (8), the work platform (2) is horizontally fixed on the outer wall of dust collector ash bucket (1), the work platform (2) is equipped with transmission (3), spray blowing device (6) and calibration device (5) on, calibration device (5) and spray blowing device (6) are located above transmission (3) respectively, the upper surface of transmission (3) is equipped with radio admittance material position switch (4) and junction box (7), radio admittance material position switch (4) is located between dust collector ash bucket (1) and junction box (7), the outer wall of dust collector ash bucket (1) is equipped with measuring hole (9), radio admittance material position switch (4) is moved under the drive of transmission (3) and can be pushed into or extracted from measuring hole (9), radio admittance material position switch (4), calibration device (5) and spray blowing device (6) are connected with junction box (7) respectively, and junction box (7) is connected with PLC control cabinet (8) by power signal line.

2. The remote automatic commissioning of a dust collector hopper RF admittance inventory apparatus of claim 1, wherein: The radio admittance material position switch (4) is provided with a sealing head (41), which is located at the end of the measuring rod (42) in the radio admittance material position switch (4). The sealing head (41) is arc-shaped and matched with the measuring hole (9).

3. The remote automatic commissioning of a dust collector hopper RF admittance inventory apparatus of claim 1, wherein: The radio admittance material position switch (4) is detachably arranged on the transmission (3) through a fixing bandage (10).

4. The remote automatic commissioning of a dust collector hopper RF admittance inventory apparatus of claim 1, wherein: The calibration device (5) includes a bracket (51), a gas cylinder (52), and a calibration rubber ring (53). The gas cylinder (52) is vertically suspended above the radio admittance material position switch (4) through the bracket (51). The gas cylinder (52) is provided with a piston rod (54) inside. One end of the piston rod (54) is provided with the calibration rubber ring (53). The calibration rubber ring (53) is a semi-ring structure and is matched with the measuring rod (42) in the radio admittance material position switch (4). The calibration rubber ring (53) moves vertically up and down under the drive of the piston rod (54). When calibrating, the inner wall of the calibration rubber ring (53) abuts against the outer wall of the measuring rod (42) in the radio admittance material position switch (4).

5. The remote automatic commissioning of a dust collector hopper RF admittance inventory apparatus of claim 1, wherein: The spray blowing device (6) includes a spray blowing pipe (61), a gas pocket, and a pulse valve. The spray blowing pipe (61) surrounds the measuring rod (42) of the radio admittance material position switch (4) outside. The spray blowing pipe (61) is a ring structure. A plurality of gas outlets (62) are uniformly distributed on one side of the spray blowing pipe (61). The pulse valve is arranged in the junction box (7). One end of the pulse valve is communicated with the spray blowing pipe (61) through a gas pipe. The other end of the pulse valve is communicated with the gas pocket arranged on one side of the dust collector ash bucket (1) through a gas pipe. The pulse valve is electrically connected with the PLC control cabinet (8).

6. The remote automatic commissioning of a dust collector hopper RF admittance inventory apparatus of claim 5, wherein: The included angle between the central axis of the gas outlet and the central axis of the measuring rod is an acute angle.

7. The remote automatic commissioning of a dust collector hopper RF admittance inventory apparatus of claim 1, wherein: The transmission device (3) comprises a travel switch (31) and a rodless cylinder (32), both ends of the rodless cylinder (32) are respectively provided with cylinder gland nuts (33), the rodless cylinder (32) is arranged on the working platform (2) through the cylinder gland nuts (33), the radio frequency admittance material position switch (4) is arranged on the sliding block of the rodless cylinder (32), and the rodless cylinder (32) is electrically connected with the travel switch (31), and the travel switch (31) controls the moving position of the sliding block.

8. The remote automatic commissioning of a dust collector hopper RF admittance inventory apparatus of claim 1, wherein: The working platform (2) is a steel plate, one end of the steel plate is fixedly connected to the outer wall of the dust collector hopper (1).

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