Pneumatic system and method of superfine powder long nozzle magnesia carbon brick matched filling machine

Abstract

The invention relates to the technical field of superfine powder long-nozzle magnesia carbon brick filling, in particular to a pneumatic system and method of a superfine powder long-nozzle magnesia carbon brick matched filling machine. The pneumatic system comprises a main pipeline, an air cylinder pipeline and a tamping hammer pipeline, one end of the main pipeline is connected with one end of a public pipeline, and the other end of the main pipeline is connected with one end of the air cylinder pipeline; the other end of the main pipeline is further connected with one end of a tamping hammer pipeline, the other end of the air cylinder pipeline is connected with a driving air cylinder, and the other end of the tamping hammer pipeline is connected with a tamping hammer. And the other end of the public pipeline is connected with the gas source gas storage tank. The pneumatic system has the advantages that the pneumatic system forms multi-loop cooperative control, actions of the driving air cylinder and the tamping hammer are finely adjusted, the pressure control loop realizes adjustability of rapping force by adjusting output pressure of a pressure reducing valve, and the speed control loop controls airflow speed by adjusting a throttle valve to set rapping rhythm, so that rapping efficiency is improved. The vibrating time is accurately set through a pneumatic control system, and 360-degree all-dimensional compaction is achieved.

Description

Technical Field

[0001] This invention relates to the field of ultrafine powder long nozzle magnesia-carbon brick filling technology, and particularly to a pneumatic system and method for ultrafine powder long nozzle magnesia-carbon bricks combined with a filling machine. Background Technology

[0002] In the production of refractory long-nozzle magnesia-carbon bricks, especially in the production of new long-life long-nozzle ultrafine powder magnesia-carbon bricks, the material filling process directly affects the quality and performance of the final product. In traditional production processes, before isostatic pressing, fine powder material needs to be filled into a rubber mold. For a long time, this process has relied mainly on manual material addition and manual vibration. This method has the following significant problems: 1. Low and unstable fill factor: Manual vibration is difficult to achieve uniform and sufficient material compaction, resulting in insufficient material filling in the mold and incomplete gas expulsion, which in turn affects the density and uniformity of the brick. 2. Product quality fluctuates greatly: The instability of the filling process makes it difficult to control the bulk density, erosion resistance and dimensional tolerance of the finished bricks, which directly affects their service life in steelmaking blast furnaces. 3. Low production efficiency: Manual operation is labor-intensive and time-consuming, making it difficult to meet the needs of modern, large-scale production; 4. High security risks: Brick defects caused by uneven filling or residual gas may lead to safety accidents such as molten steel spillage during blast furnace operation, bringing uncertainty to production arrangements.

[0003] To address these issues, the industry has begun introducing automated filling machines to replace manual operation. However, existing filling machines still have shortcomings in the pneumatic systems and control technology of the rapping devices, such as poor cylinder synchronization, inaccurate rapping force control, slow system response, and high energy consumption, which restrict further improvements in filling efficiency and finished product quality. Summary of the Invention

[0004] The purpose of this invention is to provide a pneumatic system and method for ultrafine powder long-nozzle magnesia-carbon bricks in conjunction with a filling machine. Through optimized air circuit structure and control strategy, it achieves high-precision synchronous motion of the drive cylinder, multi-level adjustable control of the rapping force, and strong process adaptability of the system. This solves problems such as uneven filling, low exhaust efficiency, and unstable quality in the ultrafine powder filling process, and ultimately achieves high-efficiency, high-uniformity, and high-stability filling of ultrafine powder, meeting the stringent production requirements of high-end magnesia-carbon bricks for product consistency and service life.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A pneumatic system for an ultrafine powder long nozzle magnesia-carbon brick and a filling machine includes a main pipeline, a cylinder pipeline, and a tamping hammer pipeline. One end of the main pipeline is connected to one end of a common pipeline, the other end of the main pipeline is connected to one end of the cylinder pipeline, and the other end of the main pipeline is also connected to one end of the tamping hammer pipeline. The other end of the cylinder pipeline is connected to a drive cylinder, and the other end of the tamping hammer pipeline is connected to a tamping hammer. The other end of the public pipeline is connected to the gas source storage tank.

[0006] The public pipeline is equipped with a shut-off valve, a filter pressure reducing valve, and a pressure detection switch in sequence.

[0007] The actuator of the gate valve is equipped with a position detection switch, which is triggered when the gate valve is fully open.

[0008] It also includes two sets of drive cylinders and two sets of tamping hammers. Each set of drive cylinders includes two cylinders, and each set of tamping hammers includes two tamping hammers. Each set of drive cylinders is connected to the corresponding cylinder pipeline, and each set of tamping hammers is connected to the corresponding tamping hammer pipeline. The drive cylinder and tamping hammer are mounted on the rotating platform.

[0009] The cylinder pipeline is equipped with a pressure reducing valve and a solenoid directional valve in sequence. The outlet of the solenoid directional valve is connected to the rodless chamber of the two drive cylinders of the corresponding group through a corresponding one-way speed control valve. The outlet of the electromagnetic reversing valve is connected to the rod chamber of the two drive cylinders of the corresponding group through a corresponding one-way speed control valve.

[0010] The solenoid directional valve is a two-position five-way solenoid directional valve.

[0011] The tamping hammer pipeline is equipped with a pressure reducing valve and a solenoid valve in sequence. The outlet of the solenoid valve is connected to the two tamping hammers of the corresponding group.

[0012] The solenoid valve is a two-position two-way solenoid valve.

[0013] A pneumatic method for using an ultrafine powder long-nozzle magnesia-carbon brick and a filling machine, implemented using a system, includes: Start the gas source storage tank and bring the pressure inside the gas source storage tank to the set value; Confirm that the shut-off valve is fully open; the position detection switch is triggered. Select the working mode of the tamping hammer: first group activation, second group activation, or both groups activation simultaneously; The control solenoid directional valve is energized, driving the cylinder to push the tamping hammer forward synchronously to the vibration position, and the corresponding travel limit switch confirms that it has reached the position. The solenoid valve is energized, the air supply pressure and flow are adjusted, and the tamping hammer is started to vibrate. The vibration time is adjustable from 0 to 999 seconds. After the vibration is completed, the control solenoid valve is de-energized, and the tamping hammer stops working; The control solenoid directional valve is de-energized, the drive cylinder drives the tamping hammer to move backward synchronously to the initial position, and the reset is confirmed by the corresponding travel limit switch. Throughout the process, the system pressure is monitored in real time via a pressure detection switch.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The pneumatic system employs a multi-loop collaborative control system. Through the integrated design of four major loops—synchronization control, pressure control, speed control, and position control—the movement of the drive cylinder and tamping hammer is precisely adjusted. The pressure control loop adjusts the output pressure of the pressure reducing valve to achieve adjustable rapping force. The speed control loop controls the airflow speed by adjusting the throttle valve to set the rapping rhythm. The rapping time is precisely set within the range of 0-999 seconds by a programmable timer in the pneumatic automatic control system. These key parameters can be preset and adjusted according to different material formulations and brick sizes, thereby enabling 360° omnidirectional uniform compaction of the ultrafine powder material in the mold during the rapping process. The compaction process is achieved by the drive cylinder pushing the tamping hammer to continuously or intermittently rappel along the 360° circumference of the mold, and vertical rappelling can also be performed within the mold height range to achieve three-dimensional omnidirectional compaction. As a result, gas between materials is efficiently discharged, the filling coefficient is significantly improved and stabilized, the density of the formed brick is significantly increased, the internal structure is more uniform, the erosion resistance and service life of the brick are greatly improved, and the product performance is stable and reliable. 2. The system adopts a synchronous control loop. An outlet throttling type one-way speed control valve is installed on the rod chamber and rodless chamber pipelines of each group of two drive cylinders. The "unobstructed air supply and throttling exhaust" method ensures that the exhaust resistance of the two cylinders in the same group is the same during the forward and backward processes, thereby achieving more precise synchronization of the movement speed of the two cylinders. This control method absorbs the energy fluctuations caused by load changes in the motion system through the throttling exhaust process, playing a role in buffering and absorbing load impacts, and effectively avoiding the "creeping" phenomenon caused by sudden pressure changes or uneven loads during cylinder operation. 3. From air source preparation, mode selection, cylinder advance and retreat to rapping execution, the entire process can be automatically completed by the control system based on preset programs and real-time feedback (such as pressure switch and limit switch signals). Operators only need to place the mold and select the mode, reducing labor intensity and reliance on operating skills. The control program supports multiple input modes of single or double tamping hammers and can adjust parameters such as pressure, speed, and time over a wide range, enabling the same system to quickly adapt to the filling requirements of different production lines, different product specifications, and different materials, achieving flexible and automated production. 4. The system integrates multiple safety monitoring and protection mechanisms. It monitors pipeline pressure in real time through electrical contact pressure detection switches to prevent overpressure or leakage; the drive cylinder is equipped with a stroke limit switch and works with the mold fixing wheel to form a position detection system to prevent mold displacement; the air source system is equipped with safety valves, filters and cooling devices to ensure the safety of core equipment. 5. The gas source storage tank system adopts a variable frequency speed control compressor, which can adjust the output in a timely manner according to the real-time gas consumption of the system, avoiding the no-load loss of the compressor and frequent start-stop, realizing the efficient use of energy and reducing operating costs; 6. The pneumatic system adopts a layered structure design of "common main pipeline - cylinder pipeline - tamping hammer pipeline". The main pipeline centrally handles air source processing and total pressure control, while the cylinder pipeline and tamping hammer pipeline are responsible for motion drive and tamping execution, respectively. The modular design makes the system structure clear and the air circuit simplified, which is convenient for installation, debugging and maintenance. At the same time, it reduces pipeline cross interference and improves the overall reliability and stability of the system operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the pneumatic system of an ultrafine powder long-nozzle magnesia-carbon brick and a filling machine.

[0016] Figure 2 This is a schematic diagram of the gas source storage tank structure.

[0017] Figure 3 This is the main view that matches the filling machine.

[0018] Figure 4 This is a side view that aligns with the filling machine.

[0019] Figure 5 This is a pneumatic control flowchart for ultrafine powder long-nozzle magnesia-carbon bricks used in conjunction with a filling machine.

[0020] In the diagram: 1. One set of drive cylinders; 2. Two sets of drive cylinders; 3. Pneumatic tamping hammer; 4. One-way speed control valve; 5. Two-position five-way solenoid directional valve; 6. Two-position two-way solenoid valve; 7. Cylinder pipeline pressure reducing valve; 8. Tamping hammer pipeline pressure reducing valve; 9. Compressed air inlet shut-off valve; 10. LSo compressed air inlet shut-off valve activation switch; 11. Oil mist filter pressure reducing valve; 12. Pressure monitoring switch; 13. Silencing exhaust throttle valve; 14. Compressor main unit; 15. Air inlet shut-off valve; 16. One-way valve; 17. Connecting hose; 18. Pressure relay; 19. Air tank; 20. Pressure gauge; 21. Air tank safety valve; 22. Air outlet shut-off valve; 23. Drain valve; 24. Mold fixing wheel; 25. Linear motion bearing; 26. Guide frame; 27. Bearing seat; 28. Guide shaft; 29. ​​Pneumatic system; 30. Rotating platform. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0022] The following embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments. Unless otherwise specified, the methods used in the following embodiments are conventional methods.

[0023] Example 1 This embodiment provides a pneumatic system and control method for ultrafine powder long-nozzle magnesia-carbon bricks in conjunction with a filling machine, aiming to solve the problems of low filling coefficient, unstable quality, and low exhaust efficiency in manual filling methods, and to achieve efficient, uniform, and stable fine powder vibration filling.

[0024] I. System structure composition, see Figure 1-4 ; The pneumatic system mainly includes the following parts: 1. Main pipeline and gas source section; The common pipeline is equipped with: compressed air inlet shut-off valve 9, oil mist filter pressure reducing valve 11, and LSo compressed air inlet shut-off valve activation switch 10; The actuator of the compressed air inlet shut-off valve 9 is equipped with an LSo compressed air inlet shut-off valve activation switch 10, which is used to detect whether the valve is fully open; One end of the public pipeline is connected to the gas source storage tank system 19, and the other end is connected to the main pipeline.

[0025] 2. Gas source storage tank system; The gas source storage tank system includes a compressor main unit 14, a storage tank 19, a pressure relay 18, a safety valve, connecting pipelines, etc. The compressor unit 14 adopts frequency conversion control, which automatically adjusts the output according to the system's gas consumption to avoid frequent start-stop. The gas storage tank 19 is equipped with a safety valve and a drain valve, and the pressure is set to 0.8 MPa.

[0026] 3. Cylinder control circuit; The cylinder control circuit is equipped with two sets of drive cylinders, namely one set of drive cylinder 1 and two sets of drive cylinder 2. Each set of drive cylinders includes two drive cylinders, which are arranged horizontally and symmetrically. Each set of drive cylinders is connected to the main pipeline via cylinder pipelines; The cylinder pipeline is equipped with a cylinder pipeline pressure reducing valve 7 and a two-position five-way solenoid reversing valve 5 in sequence. The two outlets of the two-position five-way solenoid directional valve 5 are connected to the rod chamber and rodless chamber of the two drive cylinders in the same group through the one-way speed control valve 4, respectively.

[0027] 4. Tamping hammer control circuit; The tamping hammer control circuit is equipped with two sets of tamping hammers, each set of tamping hammers including two pneumatic tamping hammers. Each set of tamping hammers is connected to the main pipeline via tamping hammer pipelines; The tamping hammer pipeline is equipped with a tamping hammer pipeline pressure reducing valve 8 and a two-position two-way solenoid valve 6 in sequence. The outlet of the two-position two-way solenoid valve 6 is connected to two pneumatic tamping hammers 3 in the same group.

[0028] 5. Auxiliary control and safety components; The system piping is equipped with an electrical contact pressure detection switch to monitor whether the system pressure is within the set range; Each drive cylinder is equipped with a stroke limit switch, see Figure 1 The stroke limit switches 1-LS1 to 4 of a group of drive cylinders 1-1 are as follows: 1-LS1 is the retracted position of drive cylinder 1-1, 1-LS2 is the forward position of drive cylinder 1-1, 1-LS3 is the retracted position of drive cylinder 1-2, and 1-LS2 is the forward position of drive cylinder 1-2; the stroke limit switches 1-LS1 to 4 of the two groups of drive cylinders 2 are the same as those of the group of drive cylinders 1-1. The mechanical guidance system adopts a linear motion bearing structure, which significantly reduces movement resistance.

[0029] II. Control procedures, see Figure 5 ; The pneumatic control process includes the following steps: 1. System startup and gas supply preparation: Start the compressor main unit 14 to bring the air tank pressure to 0.8MPa; confirm that the compressed air inlet shut-off valve 9 is fully open and trigger the LSo compressed air inlet shut-off valve engagement switch 10.

[0030] 2. Working mode selection: Select the working mode of the tamping hammer according to the brick type and process requirements: first group input, second group input, or both groups input simultaneously.

[0031] 3. The cylinders move forward synchronously; When the corresponding two-position five-way solenoid valve 5 of the control group is energized, the cylinder synchronously pushes the tamping hammer forward to the vibrating position, and the position is confirmed by the travel limit switch.

[0032] 4. Tamping and vibration execution: The corresponding two-position two-way solenoid valve 6 is energized to adjust the air supply pressure and flow rate, and to start the tamping hammer for vibration. The vibration time can be set within the range of 0 to 999 seconds.

[0033] 5. End of vibration and resetting: When the rapping time is up, the two-position two-way solenoid valve 6 is de-energized, and the tamping hammer stops; then the two-position five-way solenoid directional valve 5 is de-energized, and the cylinder synchronously retracts to the initial position, and the reset is confirmed by the travel limit switch.

[0034] 6. Pressure safety monitoring: The system pressure is monitored in real time via an electrical contact pressure detection switch throughout the entire process. If the pressure exceeds the limit, an alarm will be triggered and protection will be activated.

[0035] III. Synchronization control mechanism; To achieve high-precision synchronization, this system employs the following triple control: 1. Gas path synchronization design: Each set of two drive cylinders is equipped with a one-way speed control valve 4 in both the rod chamber and the rodless chamber. It adopts the method of "unobstructed air supply and throttling exhaust" to synchronously control the cylinder speed and absorb load impact. 2. Low-resistance mechanical guidance: The linear motion bearing guide structure reduces movement resistance by approximately 90%, balances the load, and improves synchronization stability. 3. Location closed-loop feedback: Each drive cylinder is equipped with a stroke limit switch. The control system compares the position signals of the two cylinders in the same group in real time to ensure that they are in the correct position before proceeding to the next operation.

[0036] This invention achieves high filling coefficient and high uniformity of ultrafine powder, improving brick density and service life; the system has high synchronization accuracy and adjustable vibration force to adapt to different materials and process requirements; it has a high degree of automation, is easy to operate, and significantly reduces manual labor intensity and quality fluctuations; the system is safe and reliable, with multiple protection mechanisms such as pressure monitoring and position feedback.

[0037] Example 2 In this embodiment, the pneumatic system and method for ultrafine powder long nozzle magnesia-carbon bricks combined with a filling machine are the same as in Embodiment 1, with the addition of a working process, which is implemented based on a control system, and the control system is selected as a PLC.

[0038] S1. System startup and gas supply preparation; S11. Start the compressor main unit 14. Compressed air enters the compressor through the intake filter, and after being cooled by the intercooler, it enters the air storage tank 19 through the one-way valve 16 and the connecting hose 17. S12. When the pressure inside the gas storage tank 19 reaches 0.8MPa set by the pressure relay 18, the compressor switches to low-frequency operation or standby mode, and the gas source is ready. S13. When the operator opens the compressed air inlet shut-off valve 9, the position detection switch LSo on its actuator is triggered, sending a "gas source input" signal to the control system.

[0039] S2. Mold installation and mode selection; S21. Place the rubber mold of the long nozzle magnesia-carbon brick to be filled at the center of the rotating lifting platform of the filling machine. The mold is positioned by the mold fixing wheel 24 and rotates with the platform.

[0040] S22. Based on the brick type and process requirements, select the tamping hammer working mode on the control interface: first group input, second group input, or both groups input simultaneously.

[0041] S3, the cylinder advances synchronously to the vibration position; S31, The control system detected: The pressure of the gas storage tank is ≥0.8MPa; LSo switch is ON; The mold is in place.

[0042] S32. Energize the selected two-position five-way solenoid directional valve 5. After the compressed air is stabilized by the oil mist filter pressure reducing valve 11, it is regulated by the cylinder pipeline pressure reducing valve 7 and enters the rodless chamber of the drive cylinder (1, 2).

[0043] S33. The cylinder is guided by the linear motion bearing 25 and moves forward synchronously under the throttling control of the one-way speed control valve 4 until the limit switch (such as 1-LS2, 1-LS3, etc.) is triggered, indicating that the tamping hammer 3 has reached the rapping position.

[0044] S4. Tamping and vibration are performed. S41. After the cylinder is in position, the control system energizes the corresponding two-position two-way solenoid valve 6. The compressed air enters the pneumatic tamping hammer 3 after being regulated by the pressure reducing valve 8 in the tamping hammer pipeline.

[0045] S42. The tamping hammer vibrates the mold in a 360° circumferential and vertical direction with a set pressure and frequency. The vibration time can be set in the range of 0 to 999 seconds.

[0046] S43. During the vibration process, the mold rotates with the rotary table, and the mold fixing wheel 24 keeps the distance between the mold and the tamping hammer constant to ensure uniform vibration.

[0047] S5. Vibration ends and system reset; S51. After the set vibration time is reached, the two-position two-way solenoid valve 6 is de-energized, the tamping hammer stops supplying air, and the vibration ends.

[0048] S52. Subsequently, the two-position five-way solenoid directional valve 5 is de-energized, and the compressed air is switched to the rod chamber of the cylinder, driving the cylinder to move the tamping hammer backward synchronously.

[0049] S53. During the retraction process, the one-way speed control valve 4 controls the exhaust throttling to make the cylinder retract smoothly until the limit switch (such as 1-LS1, 1-LS4, etc.) is triggered, indicating that the cylinder has completely retracted to the initial position.

[0050] S6. Security monitoring and system protection; Pressure monitoring: The electrical contact pressure detection switch 12 monitors the system pressure in real time. If the pressure exceeds the set range (PSmax / PSmin), an alarm will be triggered immediately and protection will be activated.

[0051] Position feedback: Each limit switch provides real-time feedback on the cylinder position. If the position deviation of the cylinders in the same group exceeds the limit, the system will pause and alarm.

[0052] Intelligent gas source regulation: The compressor 14 automatically adjusts its output according to the pressure changes in the gas tank, avoiding frequent start-stop operations and ensuring energy saving and stability.

[0053] Mechanical anti-deviation: The mold fixing wheel 24 works in conjunction with the limit switch to prevent the mold from deviating from the vibration center and ensure uniform vibration.

[0054] S7. Description of Cycles and Adaptations; The above process can be repeated cyclically and is suitable for the production of ultrafine powder long-nozzle magnesia-carbon bricks of different specifications and materials. The system features adjustable parameters, selectable modes, and intelligent adaptation. By adjusting parameters such as pressure, speed, and time, it can adapt to various material and process requirements.

[0055] This invention's pneumatic system employs a multi-loop coordinated control system. Through the integrated design of four major loops—synchronization control, pressure control, speed control, and position control—the system can precisely adjust the movements of the drive cylinder and tamping hammer. The pressure control loop adjusts the output pressure of the pressure reducing valve to achieve adjustable rapping force. The speed control loop controls the airflow speed by adjusting the throttle valve to set the rapping rhythm. The rapping time is precisely set within the range of 0-999 seconds using a programmable timer in the pneumatic automatic control system. These key parameters can be preset and adjusted according to different material formulations and brick sizes, thereby ensuring 360° uniform compaction of the ultrafine powder material within the mold during rapping. The process involves a drive cylinder propelling a tamping hammer to continuously or intermittently vibrate along the 360° circumference of the mold, and vertically within the mold height range, achieving three-dimensional, all-around compaction. This efficiently removes gas from the material, significantly increasing and stabilizing the filling coefficient. The resulting bricks exhibit significantly higher density, more uniform internal structure, and greatly improved erosion resistance and service life, resulting in stable and reliable product performance. The system employs a synchronous control loop, with outlet throttling one-way speed control valves installed on both the rod-side and rodless-side pipes of each group of two drive cylinders. This "unobstructed air supply, throttling exhaust" method ensures equal exhaust resistance for both cylinders during forward and backward movements, thereby achieving... The current dual-cylinder movement speed is more precisely synchronized. This control method absorbs energy fluctuations caused by load changes in the motion system through the throttling exhaust process, playing a role in buffering and absorbing load impacts, effectively avoiding the "creeping" phenomenon caused by sudden pressure changes or uneven loads during cylinder operation. From air source preparation, mode selection, cylinder advance and retreat to rapping execution, the entire process can be automatically completed by the control system according to preset programs and real-time feedback (such as pressure switch and limit switch signals). Operators only need to place the mold and select the mode, reducing labor intensity and reliance on operational skills. The control program supports multiple input modes for single or double tamping hammers and allows for wide-range adjustment of parameters such as pressure, speed, and time. This system enables rapid adaptation to different production lines, product specifications, and material filling requirements, achieving flexible and automated production. It integrates multiple safety monitoring and protection mechanisms, using electrical contact pressure detection switches to monitor pipeline pressure in real time, preventing overpressure or leakage. The drive cylinder is equipped with a stroke limit switch, which, in conjunction with the mold fixing wheels, forms a position detection system to prevent mold displacement. The gas supply system is equipped with safety valves, filters, and cooling devices to ensure the safety of core equipment. The gas supply storage tank system uses a variable frequency speed-regulating compressor, which can adjust the output in a timely manner according to the system's real-time gas consumption, avoiding compressor idling losses and frequent start-stop cycles, achieving efficient energy utilization and reducing operating costs.The pneumatic system adopts a layered structure design of "common main pipeline - cylinder pipeline - tamping hammer pipeline". The main pipeline centrally handles air source processing and total pressure control, while the cylinder pipeline and tamping hammer pipeline are responsible for motion drive and tamping execution, respectively. This modular design makes the system structure clear, the air circuit simplified, and facilitates installation, debugging, and maintenance. It also reduces pipeline cross-interference and improves the overall reliability and stability of the system.

Claims

1. A pneumatic system for an ultrafine powder long-nozzle magnesia-carbon brick and a filling machine, characterized in that, It includes a main pipeline, a cylinder pipeline, and a tamping hammer pipeline. One end of the main pipeline is connected to one end of the common pipeline, and the other end of the main pipeline is connected to one end of the cylinder pipeline. The other end of the main pipeline is also connected to one end of the tamping hammer pipeline. The other end of the cylinder pipeline is connected to the drive cylinder, and the other end of the tamping hammer pipeline is connected to the tamping hammer. The other end of the public pipeline is connected to the gas source storage tank.

2. The pneumatic system for an ultrafine powder long-nozzle magnesia-carbon brick and filling machine according to claim 1, characterized in that, The common pipeline is equipped with a shut-off valve, a filter pressure reducing valve, and a pressure detection switch in sequence.

3. The pneumatic system for an ultrafine powder long-nozzle magnesia-carbon brick and filling machine according to claim 2, characterized in that, The actuator of the shut-off valve is equipped with a position detection switch, which is triggered when the shut-off valve is fully open.

4. The pneumatic system for an ultrafine powder long-nozzle magnesia-carbon brick and filling machine according to claim 1, characterized in that, It also includes two sets of drive cylinders and two sets of tamping hammers. Each set of drive cylinders includes two cylinders, and each set of tamping hammers includes two tamping hammers. Each set of drive cylinders is connected to the corresponding cylinder pipeline, and each set of tamping hammers is connected to the corresponding tamping hammer pipeline. The drive cylinder and tamping hammer are mounted on the rotating platform.

5. The pneumatic system for an ultrafine powder long-nozzle magnesia-carbon brick and filling machine according to claim 4, characterized in that, The cylinder pipeline is equipped with a pressure reducing valve and an electromagnetic reversing valve in sequence. The outlet of the electromagnetic reversing valve is connected to the rodless chamber of the two drive cylinders of the corresponding group through a corresponding one-way speed control valve. The outlet of the electromagnetic reversing valve is connected to the rod chamber of the two drive cylinders of the corresponding group through a corresponding one-way speed control valve.

6. The pneumatic system for an ultrafine powder long-nozzle magnesia-carbon brick and filling machine according to claim 5, characterized in that, The solenoid directional valve is a two-position five-way solenoid directional valve.

7. The pneumatic system for an ultrafine powder long-nozzle magnesia-carbon brick and filling machine according to claim 4, characterized in that, The tamping hammer pipeline is equipped with a pressure reducing valve and a solenoid valve in sequence. The outlet of the solenoid valve is connected to the two tamping hammers of the corresponding group.

8. The pneumatic system for an ultrafine powder long-nozzle magnesia-carbon brick and filling machine according to claim 7, characterized in that, The solenoid valve is a two-position two-way solenoid valve.

9. A pneumatic method for using an ultrafine powder long-nozzle magnesia-carbon brick and a filling machine with the system described in any one of claims 1-8, characterized in that, include: Start the gas source storage tank and bring the pressure inside the gas source storage tank to the set value; Confirm that the shut-off valve is fully open; the position detection switch is triggered. Select the working mode of the tamping hammer: first group activation, second group activation, or both groups activation simultaneously; The control solenoid directional valve is energized, driving the cylinder to push the tamping hammer forward synchronously to the vibration position, and the corresponding travel limit switch confirms that it has reached the position. The solenoid valve is energized, the air supply pressure and flow are adjusted, and the tamping hammer is started to vibrate. The vibration time is adjustable from 0 to 999 seconds. After the vibration is completed, the control solenoid valve is de-energized, and the tamping hammer stops working; The control solenoid directional valve is de-energized, the drive cylinder drives the tamping hammer to move backward synchronously to the initial position, and the reset is confirmed by the corresponding travel limit switch. Throughout the process, the system pressure is monitored in real time via a pressure detection switch.

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