Automatic oxygen blowing scale device for wear-resistant steel ball processing
By combining a high-pressure air curtain diversion device and a negative pressure suction port device, the problems of low oxide scale collection efficiency and high energy consumption are solved, achieving efficient collection and energy-saving operation. It also has self-diagnostic functions, improving the working environment and equipment safety.
Patent Information
- Application Number
- CN202511323801.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2045-09-17
AI Technical Summary
In the current technology for processing wear-resistant steel balls, the collection efficiency of oxide scale is low, resulting in a harsh working environment, accelerated equipment wear and safety hazards. In addition, high-pressure gas purging consumes a lot of energy and oxide scale is scattered and drifted away seriously.
The system combines a high-pressure air curtain guide device with a negative pressure suction port device. Through the directional blowing of the high-pressure air curtain guide device and the gathering effect of the guide surface and guide fins, the oxide scale is guided into the collection tank, and then strongly adsorbed by the negative pressure suction port device. Combined with the intelligent control unit, closed-loop control is achieved to dynamically adjust the system's operating status.
It significantly improves the efficiency of oxide scale collection, improves the working environment, reduces energy consumption, and has self-diagnostic functions to achieve predictive maintenance, thus avoiding the high energy consumption problem of traditional systems.
Smart Images

Figure CN120815918B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of oxide scale cleaning equipment technology, specifically an automatic pulse blowing oxide scale device for processing wear-resistant steel balls. Background Technology
[0002] Wear-resistant steel balls are a key grinding medium in ball mills, and their quality directly affects the efficiency and cost of mineral processing. The current mainstream manufacturing process involves hot rolling heated round steel into shape.
[0003] During this high-temperature rolling process, a thick layer of iron oxide scale (oxide scale) forms on the surface of the round steel. This scale cracks and falls off under the rolling force. The traditional method is to set up simple collection troughs or pits below the mill, relying on gravity for natural collection. However, this method has significant drawbacks: First, the high-speed splashing scale covers a large area, resulting in extremely low collection efficiency. A large amount of scale is scattered around the equipment, leading to a harsh working environment and making cleaning and maintenance difficult. Second, accumulated scale accelerates equipment wear and corrosion, and poses safety hazards. Although some technologies use high-pressure gas purging or negative pressure adsorption, these often involve aimless purging, huge energy consumption, and cause scale to scatter and drift, severely impacting the working environment. Summary of the Invention
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.
[0005] An automatic pulse-blowing scale removal device for processing wear-resistant steel balls includes a processing table. A feeder is provided on one side of the processing table to feed round steel into a rolling mill. The processing table is equipped with a rolling mill for hot rolling the round steel into steel balls. A lower clamping rod is provided below the double helix of the rolling mill. Collection grooves for scale passage are opened on both sides of the lower clamping rod. A high-pressure air curtain guiding device is provided on the collection groove. The high-pressure air curtain guiding device includes a guiding surface for guiding airflow. The guiding surface is located at the upper end of the collection groove. A guiding fin for blocking airflow is fixedly connected to the top of the upper end of the guiding surface. A nozzle for ejecting gas is provided above the double helix of the rolling mill.
[0006] Preferably, it also includes a limiting component, which includes an upper clamping rod that is driven to move up and down by a cylinder and cooperates with the lower clamping rod to limit the round steel bar within the rolling mill.
[0007] Preferably, the high-pressure air curtain guiding device further includes a compressor, which is connected to the nozzles through an air guide pipe. The nozzles are provided in multiple locations and are evenly distributed on the upper pressure rod.
[0008] Preferably, the nozzle faces the guide surface, and the angle α between the nozzle and the side of the upper clamping rod is 30°-60°.
[0009] Preferably, the tail end of the rolling mill is provided with a feeding assembly, the feeding assembly includes a feeding port, the feeding port is opened on the processing table, and the lower end of the feeding port is provided with a guide channel for guiding steel balls.
[0010] Preferably, a negative pressure suction port device for assisting in the collection of oxide scale is provided below the collection tank. The negative pressure suction port device includes a negative pressure chamber, which is fixedly connected to the lower end of the collection tank. A blower separated by an isolation net is provided on one side of the collection tank. A collection chamber for collecting oxide scale is fixedly connected to the lower end of the negative pressure chamber. An electric unloading valve is provided at the lower end of the collection chamber. A material transport vehicle for transporting oxide scale is provided below the electric unloading valve. The material transport vehicle is slidably connected to the track by an electric trolley.
[0011] Preferably, a high-temperature linear laser array sensor is fixedly connected to one end of the collection tank to detect the oxide scale falling off, and a control unit is fixedly connected to the processing table. The control unit is communicatively connected to the high-temperature linear laser array sensor, the induced draft fan, and the electronically controlled proportional valve of the nozzle pipeline.
[0012] Preferably, the control unit is configured to: compare the actual oxide scale blocking signal fed back by the high-temperature linear laser array sensor with a preset threshold signal to generate a feedback control signal, and dynamically fine-tune the rotation speed of the induced draft fan and the electronically controlled proportional valve of the nozzle pipeline to achieve closed-loop control.
[0013] Preferably, the high-temperature linear laser array sensor is provided in two sets, located on both sides respectively. The control unit is configured to compare the actual oxide scale blocking signals fed back by the high-temperature linear laser array sensors on both sides. When the difference between the two sets of signals exceeds a preset threshold, the nozzle blockage signal is transmitted to an external terminal.
[0014] Preferably, the control unit is configured to calculate the scale shedding load based on existing rolling process parameters and generate a feedforward control signal accordingly to pre-adjust the rotational speed of the induced draft fan and the air supply pressure of the electronically controlled proportional valve of the nozzle pipeline.
[0015] The beneficial effects of this invention are:
[0016] High collection efficiency: Through the directional blowing of the high-pressure air curtain guiding device and the gathering effect of the guiding surface and guiding fins, the splashed oxide scale is forcibly guided into the collection tank. Combined with the strong adsorption of the negative pressure suction port device, the active capture and collection of oxide scale is realized, the collection rate is significantly improved, and the workshop environment is greatly improved.
[0017] Significantly reduced energy consumption: The introduction of an intelligent control unit constitutes a dual closed-loop control system. Feedforward control pre-adjusts the system power based on rolling parameters, while feedback control dynamically fine-tunes the operating state through real-time monitoring data from a high-temperature linear laser array sensor. This avoids the high energy consumption problem of traditional systems operating at full power continuously, resulting in improved overall energy-saving performance.
[0018] Self-diagnostic function: The system has a self-diagnostic function. By comparing the signals of the sensors on both sides, it can intelligently determine faults such as nozzle blockage and issue an early warning, thus realizing predictive maintenance. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] in:
[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0022] Figure 2 This is a schematic diagram of the overall structure of the rolling mill and high-pressure air curtain guiding device in this invention;
[0023] Figure 3 This is a schematic diagram of the overall structure of the feeding assembly and the negative pressure suction device in this invention;
[0024] Figure 4 This is a schematic diagram of the overall structure of the high-pressure air curtain guiding device and the collection tank in this invention;
[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention;
[0026] Figure 6 for Figure 5 An enlarged schematic diagram of the structure at point A in the middle.
[0027] In the picture:
[0028] 1. Feeder; 2. Processing table; 3. Rolling mill;
[0029] 4. Limiting assembly; 41. Upper clamping rod; 42. Lower clamping rod;
[0030] 5. High-pressure air curtain guide device; 51. Compressor; 52. Nozzle; 53. Guide surface; 54. Guide fin;
[0031] 6. Collection tank; 7. High-temperature linear laser array sensor;
[0032] 8. Feeding assembly; 81. Feeding port; 82. Feeding channel;
[0033] 9. Negative pressure suction device; 91. Negative pressure chamber; 92. Exhaust fan; 94. Collection chamber; 95. Electric unloading valve; 96. Material transport vehicle; 97. Electric trolley; 98. Track; 99. Round steel;
[0034] 100. Control Unit. Detailed Implementation
[0035] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0036] Example:
[0037] like Figure 1-6 As shown, an automatic pulse-blowing scale removal device for processing wear-resistant steel balls includes a processing table 2. A feeder 1 is provided on one side of the processing table 2, which feeds round steel 99 into a rolling mill 3. The processing table 2 is equipped with a rolling mill 3 for hot rolling the round steel 99 into steel balls. A lower clamping rod 42 is provided below the double helix of the rolling mill 3. Collection grooves 6 for scale passage are opened on both sides of the lower clamping rod 42. A high-pressure air curtain guiding device 5 is provided on the collection groove 6. The high-pressure air curtain guiding device 5 includes a guiding surface 53 for guiding airflow. The guiding surface 53 is located at the upper end of the collection groove 6. A guiding fin 54 for blocking airflow is fixedly connected to the top of the upper end of the guiding surface 53. A nozzle 52 for ejecting gas is provided above the double helix of the rolling mill 3.
[0038] The feeder 1 (such as a servo-driven feed roller conveyor) precisely feeds the round steel 99 into the rolling centerline of the rolling mill 3. The rolling mill 3 uses a double-helix roll structure, which is the key actuator for rolling the round steel 99 into a spherical shape. Directly below the double-helix roll, a lower clamping rod 42 is fixedly installed, which works in conjunction with the upper clamping rod 41 above to prevent the round steel 99 from jumping up and down during the rolling process. On both sides of the lower clamping rod 42, there are long strip-shaped collection grooves 6, through which most of the oxide scale falls off. The guide surface 53 of the high-pressure air curtain guide device 5 is welded to the upper edge of the collection groove 6, and its shape is an outwardly inclined slope. At the highest point of the guide surface 53, a row of inclined guide fins 54 is welded. Above the double-helix roll of the rolling mill 3, multiple nozzles 52 are installed, and the gas they spray is directed towards the downwardly inclined guide surface 53.
[0039] It is important to note that, such as Figure 6 As shown in the figure, some of the gas flow directions are shown. First, the high-pressure gas from nozzle 52 can blow off the oxide scale on the surface of the high-temperature round steel 99, which plays a cleaning role and prevents excessive oxide scale from causing scratches on the surface of the steel ball during rolling. The blown-off oxide scale slides down into the collection tank 6 under the action of gravity and gas guidance. At the same time, when the gas blows onto the guide surface 53, it will flow upward along the guide surface 53. After being guided by the guide fin 54, it comes into contact with the lower end of the double-helix structure roll, forming an air curtain, so that the oxide scale will not escape from the gap between the double-helix structure roll and the processing table 2.
[0040] At the same time, it should be noted that the guide fin 54 is tilted inward. When the airflow blows onto the double-helix structure roll, it can blow away the oxide scale in the gap of the double-helix structure roll, preventing the oxide scale adhering on the double-helix structure roll from affecting the subsequent rolling of steel balls. At the same time, the inward tilt of the guide fin 54 can make the blown oxide scale float inward, and then, in conjunction with the downward airflow, send the oxide scale into the collection tank 6.
[0041] Furthermore, a limiting component 4 is included, comprising an upper clamping rod 41, which is driven by a cylinder to move up and down, cooperating with the lower clamping rod 42 to limit the round steel 99 within the rolling mill 3. The limiting component 4 is a crucial component for ensuring the stability of the rolling process. The upper clamping rod 41 is driven by a cylinder to move up and down. When the round steel 99 is fed into the rolling mill 3, the cylinder drives the upper clamping rod 41 to press down, forming a narrow channel together with the fixed lower clamping rod 42, precisely limiting the round steel 99 within the biting area of the double-helix rolls of the rolling mill 3. This prevents the round steel 99 from shifting up and down due to rolling force, ensuring the roundness of the steel ball and the stability of the rolling process, while also providing a relatively fixed area for the oxide scale to fall off (i.e., the collection grooves 6 on both sides).
[0042] Furthermore, the high-pressure air curtain guiding device 5 also includes a compressor 51, which is connected to nozzles 52 via air guide pipes. Multiple nozzles 52 are evenly distributed on the upper clamping rod 41, facing the guiding surface 53. The angle α between the nozzles 52 and the side of the upper clamping rod 41 is 30°-60°. The power source of the high-pressure air curtain guiding device 5 is a fixed air compressor 51. The high-pressure gas generated by the compressor 51 is delivered to the multiple nozzles 52 evenly distributed on the upper clamping rod 41 through air guide pipes laid on the device. These nozzles 52 are not vertically downward; instead, their central axis forms an angle α between 30° and 60° (preferably 45°) with the side of the upper clamping rod 41. This causes the ejected airflow to be angled downwards towards the guiding surface 53.
[0043] Furthermore, the tail end of the rolling mill 3 is provided with a feeding assembly 8, which includes a feeding port 81. The feeding port 81 is located on the processing table 2, and the lower end of the feeding port 81 is provided with a guide channel 82 for guiding the steel balls. At the tail end of the rolling mill 3, a feeding port 81 is provided on the processing table 2. After the formed hot steel balls exit the rolling mill 3, they fall directly from this feeding port 81. Below the feeding port 81, an inclined guide channel 82 (usually made of heat-resistant steel plate) is welded, and the hot steel balls slide along this channel into subsequent quenching or conveying equipment, completing the feeding process after rolling.
[0044] Furthermore, a negative pressure suction device 9 for assisting in the collection of oxide scale is provided below the collection tank 6. The negative pressure suction device 9 includes a negative pressure chamber 91, which is fixedly connected to the lower end of the collection tank 6. A blower 92, separated by an isolation net, is located on one side of the collection tank 6. A collection chamber 94 for collecting oxide scale is fixedly connected to the lower end of the negative pressure chamber 91. An electric unloading valve 95 is located at the lower end of the collection chamber 94. A transport trolley 96 for transporting oxide scale is located below the electric unloading valve 95. The transport trolley 96 is slidably connected to the track 98 via an electric trolley 97. The oxide scale initially collected by the collection tank 6 continues to fall. Directly below the collection tank 6, the negative pressure suction device 9 is connected. The core of this device is a negative pressure chamber 91. One side of the negative pressure chamber 91 is connected to the suction port of the blower 92 via an isolation net (not shown in the figure). This isolation net prevents oxide scale from being sucked into the blower impeller, providing protection. A collection chamber 94 is connected to the bottom of the negative pressure chamber 91 for storing collected scale. An electrically operated unloading valve 95 is installed at the bottom outlet of the collection chamber 94. When the scale accumulates to a certain amount in the collection chamber 94, the control unit 100 commands the electrically operated unloading valve 95 to open, unloading the scale into the transport cart 96 directly below. The transport cart 96 moves on the track 98 via an electrically operated trolley 97, enabling automatic loading and transfer, greatly reducing the labor intensity of manual cleaning.
[0045] Furthermore, a high-temperature linear laser array sensor 7 is fixedly connected to one end of the collection tank 6 to detect the oxide scale falling off. A control unit 100 is fixedly connected to the processing table 2. The control unit 100 is communicatively connected to the high-temperature linear laser array sensor 7, the induced draft fan 92, and the electronically controlled proportional valve of the nozzle 52 pipeline. The high-temperature linear laser array sensor 7 monitors the situation of laser being blocked by oxide scale in real time. The control unit 100 is configured to: compare the actual oxide scale blocking signal fed back by the high-temperature linear laser array sensor 7 with a preset threshold signal, generate a feedback control signal, and dynamically fine-tune the rotation speed of the induced draft fan 92 and the electronically controlled proportional valve of the nozzle 52 pipeline to achieve closed-loop control.
[0046] When a large amount of oxide scale falls off, the laser is frequently and extensively blocked, and the sensor feeds this signal back to the control unit 100. The control unit 100 compares this signal with an internally preset threshold (e.g., the upper limit of the number of times blocked per unit time). If the actual value far exceeds the threshold, it indicates a large amount of oxide scale falling off, and the control unit 100 generates a feedback control signal: increasing the speed of the induced draft fan 92 to enhance suction, and simultaneously increasing the opening of the electronically controlled proportional valve to increase the intensity of the air curtain and the purging force. Conversely, when oxide scale falling off decreases, the system automatically reduces power and enters an energy-saving operation mode. This achieves closed-loop control that automatically adjusts according to actual operating conditions.
[0047] Furthermore, the high-temperature linear laser array sensor 7 is provided in two sets, located on both sides respectively. The control unit 100 is configured to compare the actual oxide scale blocking signals fed back by the high-temperature linear laser array sensors 7 on both sides. When the difference between the two sets of signals exceeds a preset threshold, the nozzle 52 blockage signal is transmitted to an external terminal. Because there are two symmetrical sets of high-temperature linear laser array sensors 7, the control unit 100 can perform more advanced diagnostic functions. Under normal operating conditions, the amount of oxide scale falling off the rolls on both sides should be approximately equal, therefore the signal strength and frequency fed back by the sensors on both sides should also be similar. The control unit 100 continuously compares these two sets of signals. If the signal on one side is consistently significantly weaker than the other side (the difference exceeds a preset threshold, such as 30%), it is highly likely that the nozzle 52 on that side is partially blocked, causing the air curtain guiding function to fail, and the oxide scale cannot be effectively blown into the sensor monitoring area. At this time, the control unit 100 will not immediately adjust the equipment parameters, but will generate an alarm signal for "nozzle 52 blockage" and transmit this signal to the host computer in the central control room or the operator's mobile terminal, prompting maintenance and inspection. This enables a predictive maintenance function based on data comparison.
[0048] Furthermore, the control unit 100 is configured to calculate the scale shedding load based on existing rolling process parameters and generate a feedforward control signal accordingly to pre-adjust the rotational speed of the induced draft fan 92 and the air supply pressure of the electronically controlled proportional valve in the nozzle 52 pipeline. The control unit 100 internally stores a mathematical model based on process knowledge (e.g., larger steel balls require greater rolling force and result in more scale shedding). When the system is ready to roll a Φ100mm steel ball, the control unit 100 obtains the process parameters of "high rolling force, low rotational speed" from the main control system of the mill 3. Based on the model, it predicts that a large amount of scale will be generated. Therefore, it issues a feedforward control command in advance: before the scale has shed and before the sensor detects a signal, it increases the rotational speed of the induced draft fan 92 to a higher preset value and simultaneously increases the opening of the electronically controlled proportional valve. Thus, when a large amount of scale actually begins to shed, the collection system is already operating at optimal power in a "ready" state, achieving seamless connection and optimal control. This constitutes an intelligent system that is responsive, precise in control, and energy-efficient.
[0049] The workflow is as follows:
[0050] The feeder 1 transports the heated round steel bar 99 to the rolling center line of the rolling mill 3. The upper clamping rod 41 of the limiting assembly 4 works together with the lower clamping rod 42 under the drive of the cylinder to radially constrain the round steel bar 99 and ensure the stability of the rolling process.
[0051] The twin-helix rolls of rolling mill 3 begin rolling round steel 99 into shape. During this process, the oxide scale on the surface of round steel 99 is removed due to plastic deformation. Control unit 100 acquires rolling process parameters in real time, predicts the amount of oxide scale generated through a built-in algorithm, and outputs feedforward control signals to the electrically controlled proportional valves of the induced draft fan 92 and nozzle 52 pipelines to pre-adjust the system operating parameters.
[0052] The nozzles 52 of the high-pressure air curtain guiding device 5 are distributed along the upper clamping rod 41, and their spray direction forms an angle of 30°-60° with the vertical direction. The airflow provided by the compressor 51 forms a directional air curtain, guiding the detached oxide scale to the collection tank 6. The guide surface 53 and the guide fins 54 work together to ensure that the oxide scale is concentrated and enters the inlet of the collection tank 6.
[0053] Oxide scale enters the negative pressure suction device 9 through the collection tank 6. The induced draft fan 92 generates a negative pressure field in the negative pressure chamber 91, conveying the oxide scale to the collection chamber 94. When the material in the collection chamber 94 reaches the set capacity, the control unit 100 activates the electric unloading valve 95 to unload the oxide scale into the transport trolley 96. The electric trolley 97 completes the automated material transfer along the track 98.
[0054] The high-temperature linear laser array sensor 7 monitors the amount of oxide scale passing through the inlet of the collection tank 6 in real time and transmits the detection signal to the control unit 100. The control unit 100 performs closed-loop regulation of the induced draft fan 92 speed and the nozzle 52 pressure based on the difference between the feedback signal and a preset threshold. Simultaneously, the system diagnoses and alarms nozzle 52 blockage faults by comparing the signal symmetry of the high-temperature linear laser array sensors 7 on both sides.
[0055] After rolling and scale removal, the steel balls are conveyed to subsequent processes via the discharge port 81 and the guide channel 82. The entire system achieves a dynamic balance between efficient scale removal and energy consumption through a combination of feedforward control and feedback regulation.
[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automatic pulse blowing oxide scale device for processing wear-resistant steel balls, comprising a processing table (2), wherein a feeder (1) is provided on one side of the processing table (2), the feeder (1) feeding round steel (99) into a rolling mill (3), characterized in that, The processing table (2) is equipped with a rolling mill (3) for hot rolling round steel (99) into steel balls. The rolling mill (3) has a lower clamping rod (42) below the double helix structure of the rolls. The lower clamping rod (42) has collection grooves (6) on both sides for the passage of oxide scale. The collection groove (6) is equipped with a high-pressure air curtain guiding device (5). The high-pressure air curtain guiding device (5) includes a guiding surface (53) for guiding the airflow. The guiding surface (53) is located at the upper end of the collection groove (6). The top of the upper end of the guiding surface (53) is fixedly connected with a guiding fin (54) for blocking the airflow. The rolling mill (3) has a nozzle (52) for ejecting gas above the double helix structure of the rolls. It also includes a limiting component (4), which includes an upper clamping rod (41), which is driven to move up and down by a cylinder and cooperates with the lower clamping rod (42) to limit the round steel (99) within the rolling mill (3); The nozzle (52) is provided in multiple parts and is evenly distributed on the upper clamping rod (41); The nozzle (52) faces the guide surface (53) at an angle downwards, and the guide fin (54) is tilted inwards. When the gas blows onto the guide surface (53), it will flow upwards along the guide surface (53), and after being guided by the guide fin (54) and contacting the lower end of the double helix structure roller, an air curtain is formed, so that the oxide scale will not escape from the gap between the double helix structure roller and the processing table (2).
2. The automatic pulse blowing oxide scale device for processing wear-resistant steel balls as described in claim 1, characterized in that, The high-pressure air curtain guide device (5) also includes a compressor (51), which is connected to the nozzle (52) through an air guide pipe.
3. The automatic pulse blowing oxide scale device for processing wear-resistant steel balls as described in claim 2, characterized in that, The included angle α between the nozzle (52) and the upper clamping rod (41) in the lateral direction is 30°-60°.
4. The automatic pulse blowing oxide scale device for processing wear-resistant steel balls as described in claim 1, characterized in that, The tail end of the rolling mill (3) is provided with a feeding assembly (8), which includes a feeding port (81). The feeding port (81) is opened on the processing table (2), and the lower end of the feeding port (81) is provided with a guiding channel (82) for guiding steel balls.
5. The automatic pulse blowing oxide scale device for processing wear-resistant steel balls as described in claim 1, characterized in that, Below the collection tank (6) is a negative pressure suction port device (9) for assisting in the collection of oxide scale. The negative pressure suction port device (9) includes a negative pressure chamber (91). The negative pressure chamber (91) is fixedly connected to the lower end of the collection tank (6). A blower (92) separated by an isolation net is provided on one side of the collection tank (6). A collection chamber (94) for collecting oxide scale is fixedly connected to the lower end of the negative pressure chamber (91). An electric unloading valve (95) is provided at the lower end of the collection chamber (94). A transport vehicle (96) for transporting oxide scale is provided below the electric unloading valve (95). The transport vehicle (96) is slidably connected to the track (98) by an electric trolley (97).
6. The automatic pulse blowing oxide scale device for processing wear-resistant steel balls as described in claim 5, characterized in that, A high-temperature linear laser array sensor (7) is fixedly connected to one end of the collection tank (6) to detect the oxide scale falling off. A control unit (100) is fixedly connected to the processing table (2). The control unit (100) is communicatively connected to the high-temperature linear laser array sensor (7), the blower (92), and the electronically controlled proportional valve of the nozzle (52) pipeline.
7. The automatic pulse blowing oxide scale device for processing wear-resistant steel balls as described in claim 6, characterized in that, The control unit (100) is configured to: compare the actual oxide scale blocking signal fed back by the high-temperature linear laser array sensor (7) with a preset threshold signal to generate a feedback control signal, and dynamically fine-tune the rotation speed of the induced draft fan (92) and the electronically controlled proportional valve of the nozzle (52) pipeline to achieve closed-loop control.
8. The automatic pulse blowing oxide scale device for processing wear-resistant steel balls as described in claim 7, characterized in that, The high-temperature linear laser array sensor (7) is provided in two sets, located on both sides respectively. The control unit (100) is configured to compare the actual oxide scale blocking signals fed back by the high-temperature linear laser array sensor (7) on both sides. When the difference between the two sets of signals exceeds a preset threshold, the nozzle (52) blockage signal is transmitted to an external terminal.
9. The automatic pulse blowing oxide scale device for processing wear-resistant steel balls as described in claim 8, characterized in that, The control unit (100) is configured to calculate the scale shedding load based on existing rolling process parameters and generate a feedforward control signal accordingly to pre-adjust the rotational speed of the induced draft fan (92) and the air supply pressure of the electronically controlled proportional valve of the nozzle (52) pipeline.
Citation Information
Patent Citations
Matched structure for guide plate and guide plate seat of ball forming mechanism of bar ball rolling machine
CN101590509A
Scale removing device
KR101403089B1