A molten iron scum treatment device for casting

Abstract

This invention relates to the field of metal casting, and more particularly to a casting molten iron slag treatment device. The purpose of this invention is to provide a casting molten iron slag treatment device that allows for remote slag removal from high-temperature molten iron, improving safety, efficiency, and enabling rapid and thorough slag removal. The technical solution is: a casting molten iron slag treatment device, comprising a movable chassis, a counterweight fixed to the upper left side of the movable chassis, and an extension frame installed on the upper right side of the movable chassis; a moving component is provided on the upper side of the extension frame. This invention, through the cooperation of the moving component and the collection component, can separate slag from the surface of molten iron from a distance and transfer the slag, avoiding splashing of molten iron during slag removal and preventing injury to nearby personnel, thus improving the safety and efficiency of slag removal operations.

Description

Technical Field

[0001] This invention relates to the field of metal casting, and more particularly to a device for treating molten iron slag in casting. Background Technology

[0002] In metal casting, molten iron is first melted in an electric arc furnace, then transferred to a ladle for casting. During the melting process, a layer of slag forms, which is mainly composed of oxides, sulfides, and other impurities. These slags affect the surface quality and mechanical properties of the castings. Therefore, before pouring the molten iron into the mold for casting, slag removal is necessary to ensure the final surface quality and mechanical properties of the castings. Depending on the casting requirements, electric arc furnaces and ladles are distributed throughout the foundry. Currently, manual slag removal is more commonly performed using tools, and the removed slag is then transferred to a slag disposal area in the workshop.

[0003] Because manual slag removal is slow, and current slag removal equipment is fixed in specific locations within the foundry and does not remove slag completely, requiring multiple operations and consuming a lot of time, it is also difficult to remove slag from molten iron ladles in variable locations. Therefore, slag in molten iron ladles is mostly removed manually. Manual slag removal has the following problems: inexperienced operators may cause molten iron and slag to be scooped up together, resulting in molten iron loss; incomplete removal of slag can cause porosity, surface defects, and decreased mechanical properties; and the molten iron temperature is extremely high, and improper operation during the process can lead to serious burns.

[0004] In summary, existing slag removal operations have drawbacks such as the unpredictable position of the molten iron ladle making the slag removal equipment difficult to operate, manual operation leading to molten iron loss, and the slag removal process easily causing personnel injury.

[0005] Therefore, it is necessary to develop a casting slag treatment device to solve the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of existing manual slag removal operations, such as low safety due to close proximity to molten iron, scattered and difficult-to-remove slag, and time-consuming and labor-intensive processes, the purpose of this invention is to provide a casting molten iron slag treatment device that can be used remotely to remove slag from high-temperature molten iron, thereby improving safety, efficiency, and speed and thoroughness.

[0007] The technical solution is as follows: A casting molten iron slag treatment device includes a mobile chassis, a counterweight fixed on the upper left side of the mobile chassis, and an extension frame installed on the upper right side of the mobile chassis; a moving component is provided on the upper side of the extension frame, and a collecting component is provided at the moving component. The collecting component is used to collect slag from the surface of the molten iron, and the moving component is used to drive the collecting component to move in multiple directions; a scraping component is provided at the collecting component, and the scraping component is used to push the slag from the surface of the molten iron into the collecting component.

[0008] Preferably, the moving component includes a first geared motor, the first geared motor is mounted on the upper side of the riser, a first electric push rod is mounted on the output shaft of the first geared motor, a second geared motor is mounted on the moving part of the first electric push rod, a second electric push rod is mounted on the output shaft of the second geared motor, and the collecting component is located at the moving part of the second electric push rod.

[0009] Preferably, the collecting assembly includes a first servo motor, the second electric push rod moving part is equipped with the first servo motor, a vertical rod is installed at an eccentric position on the output shaft of the first servo motor, a filter plate is installed on the lower side of the vertical rod, a surrounding plate is installed on the front side of the filter plate, and a support plate is installed between the filter plate and the lower side of the surrounding plate.

[0010] Preferably, the scraping assembly includes a second servo motor, the output shaft of the first servo motor is mounted with the second servo motor, a connector is mounted on the output shaft of the second servo motor, and a scraper is mounted on the outer cylindrical surface of the connector.

[0011] Preferably, it further includes an expansion component, which is disposed on the side of the scraper away from the connector. The expansion component is used to increase the range of molten iron slag collection. The expansion component includes a bracket, and the bracket is fixed above the side of the scraper away from the connector. A third reduction motor is installed on the upper side of the bracket, and an arc-shaped plate is installed on the lower side of the output shaft of the third reduction motor.

[0012] Preferably, it further includes a feeding assembly, which is located on one side of the output shaft of the first servo motor. The feeding assembly is used to sprinkle the slag remover onto the surface of the molten iron. The feeding assembly includes a material box, which is installed on one side of the output shaft of the first servo motor. A feeding pipe is connected to the bottom of the material box. Multiple sets of diffuser plates are provided inside the feeding pipe. Third electric push rods are installed on both sides of the feeding pipe. A baffle is connected between the moving parts of the two third electric push rods, and the baffle blocks the lower side of the feeding pipe.

[0013] Preferably, it further includes a separation plate, which is installed at the bottom of the tray.

[0014] Preferably, it also includes a distance sensor, which is installed on the front side of the hopper.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention can separate the slag on the surface of molten iron from a distance by using a moving component and a collecting component, and transfer the slag, thereby avoiding the splashing of molten iron during the slag removal process and preventing injury to the surrounding personnel, thus improving the safety and efficiency of the slag removal operation.

[0016] 2. The present invention uses the scraper of the scraping assembly to move in a circular motion, so that the scraper can quickly push the slag to the tray. This method can quickly collect the slag on the surface of molten iron and improve the efficiency of slag collection.

[0017] 3. This invention achieves automatic addition of slag remover through a spreading component, avoiding the problem of burns from high temperatures when manually spreading slag remover, and realizing a safe, efficient and automatic slag remover spreading function. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the component part of the present invention. Figure 1 .

[0020] Figure 3 This is a three-dimensional structural diagram of the component part of the present invention. Figure 2 .

[0021] Figure 4 This is a three-dimensional structural diagram of the component part of the present invention. Figure 3 .

[0022] Figure 5 This is a three-dimensional structural diagram of the scraping component of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the material spreading component of the present invention.

[0024] Figure 7 This is a cross-sectional perspective view of the material spreading component of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the separation plate portion of the present invention.

[0026] The markings in the attached diagram are as follows: 1: Mobile chassis, 2: Counterweight, 3: Elevator, 4: Moving component, 5: Collection component, 6: Scraping component, 41: First geared motor, 42: First electric push rod, 43: Second geared motor, 44: Second electric push rod, 51: First servo motor, 52: Vertical rod, 53: Filter plate, 54: Enclosure plate, 55: Support plate, 61: Second servo motor, 62: Connector, 63: Scraper, 7: Expansion component, 71: Support, 72: Third geared motor, 73: Arc plate, 8: Feeding component, 81: Material box, 82: Spreading pipe, 83: Diffuser plate, 84: Third electric push rod, 85: Baffle, 9: Separation plate, 10: Distance sensor. Detailed Implementation

[0027] The invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0028] Example 1, as Figures 1-2 As shown, a casting slag treatment device includes a mobile chassis 1, a counterweight 2, an extension frame 3, a moving assembly 4, a collecting assembly 5, and a scraping assembly 6. The mobile chassis 1 has electric casters at the bottom. The counterweight 2 is fixed to the upper left side of the mobile chassis 1, and the extension frame 3 is installed on the upper right side of the mobile chassis 1. The moving assembly 4 is located on the upper side of the extension frame 3, and the collecting assembly 5 is located at the moving assembly 4. The collecting assembly 5 is used to collect slag from the surface of the molten iron, and the moving assembly 4 is used to drive the collecting assembly 5 to tilt back and forth and move forward and backward. Rotation, up-and-down movement, and left-and-right movement allow the collecting component 5 and the scraping component 6 to be moved to the slag removal or slag discharge position within the foundry workshop. The collecting component 5 is equipped with the scraping component 6, which is used to push the floating slag on the surface of the molten iron into the collecting component 5. The moving chassis 1 is used for electrically controlling the moving component 4, the collecting component 5, and the scraping component 6 to move to the next slag removal or slag discharge position within the foundry workshop. The counterweight 2 is used to stabilize the center of gravity of the moving chassis 1 after the collecting component 5 is loaded with floating slag, preventing it from tipping over and ensuring operational safety.

[0029] like Figure 1As shown, the moving component 4 includes a first geared motor 41, a first electric push rod 42, a second geared motor 43, and a second electric push rod 44. The first geared motor 41 is mounted on the upper side of the riser 3. The first electric push rod 42 is mounted on the output shaft of the first geared motor 41. The first geared motor 41 is used to drive the first electric push rod 42 to rotate on the horizontal plane. The second geared motor 43 is mounted on the moving part of the first electric push rod 42. The first electric push rod 42 is used to drive the second geared motor 43 to move left and right. The second electric push rod 44 is mounted on the output shaft of the second geared motor 43. The second geared motor 43 is used to drive the second electric push rod 44 to tilt back and forth. The collecting component 5 is located at the moving part of the second electric push rod 44. The second electric push rod 44 is used to drive the collecting component 5 to move up and down.

[0030] like Figures 2-5 As shown, the collection assembly 5 includes a first servo motor 51, a vertical rod 52, a filter plate 53, a surrounding plate 54, and a support plate 55. The first servo motor 51 is installed on the moving part of the second electric push rod 44. The vertical rod 52 is installed at an eccentric position on the output shaft of the first servo motor 51. The filter plate 53 is installed on the lower side of the vertical rod 52. The filter plate 53 facilitates the outflow of molten iron and separates the molten iron from the slag. The surrounding plate 54 is installed on the front side of the filter plate 53. The support plate 55 is installed between the lower side of the filter plate 53 and the surrounding plate 54. The support plate 55, the filter plate 53, and the surrounding plate 54 form a collection bucket structure with a closed bottom. The left side of the collection bucket structure formed by the support plate 55, the filter plate 53, and the surrounding plate 54 is open. The scraping assembly 6 is located at the collection bucket structure formed by the support plate 55, the filter plate 53, and the surrounding plate 54 and controls the state of its open left side structure, so that the collection bucket structure formed by the support plate 55, the filter plate 53, and the surrounding plate 54 can collect or discharge slag.

[0031] like Figure 2 and Figure 5 As shown, the scraping assembly 6 includes a second servo motor 61, a connector 62, and a scraper 63. The output shaft of the first servo motor 51 is equipped with the second servo motor 61, and the connector 62 is installed on the output shaft of the second servo motor 61. The outer cylindrical surface of the connector 62 is equipped with a scraper 63, which has a structure with filter holes. The second servo motor 61 is used to drive the connector 62 to rotate, thereby driving the scraper 63 to rotate outside the range of the collection bucket structure formed by the support plate 55, the filter plate 53, and the surrounding plate 54. This causes the scraper 63 to rotate from the right side of the filter plate 53 to the left side of the surrounding plate 54, thereby scraping the slag on the surface of the molten iron into the collection bucket structure formed by the support plate 55, the filter plate 53, and the surrounding plate 54. The slag is retained on the support plate 55, while the molten iron is filtered out from the filter plate 53 and the scraper 63.

[0032] like Figure 5As shown, it also includes an expansion component 7, which is located on the side of the scraper 63 away from the connector 62. The expansion component 7 is used to increase the range of molten iron slag collection and increase the amount of slag collected from the surface of the molten iron by the scraper assembly 6. The expansion component 7 includes a bracket 71, a third reduction motor 72 and an arc plate 73. The bracket 71 is fixed above the side of the scraper 63 away from the connector 62. The third reduction motor 72 is installed on the upper side of the bracket 71. The arc plate 73 is installed on the lower side of the output shaft of the third reduction motor 72. The third reduction motor 72 is used to adjust the angle of the arc plate 73.

[0033] like Figures 6-7 As shown, it also includes a feeding assembly 8, which is located on one side of the output shaft of the first servo motor 51. The feeding assembly 8 is used to sprinkle the slag remover onto the surface of the molten iron. The feeding assembly 8 includes a material box 81, a feeding pipe 82, a diffuser plate 83, a third electric push rod 84, and a baffle 85. The material box 81 is installed on one side of the output shaft of the first servo motor 51. The material box 81 is positioned opposite the vertical rod 52. The material box 81 is used to store the slag remover. The material box 81 has a bottom discharge structure. The bottom of the material box 81 is connected to the feeding pipe 82. The feeding pipe 82 is provided with multiple sets of diffuser plates 83. The diffuser plates 83 are distributed in a diffused manner. The diffuser plates 83 make the slag remover evenly sprinkled onto the surface of the molten iron. The third electric push rods 84 are installed on both sides of the feeding pipe 82. A baffle 85 is connected between the moving parts of the two third electric push rods 84. The baffle 85 blocks the lower side of the feeding pipe 82.

[0034] like Figure 8 As shown, it also includes a separation plate 9, which is installed at the bottom of the support plate 55. The separation plate 9 is an inverted conical structure.

[0035] like Figure 2 As shown, it also includes a distance sensor 10, which is installed on the front side of the material box 81. The distance sensor 10 has a structure with the distance measuring direction vertically downward. The distance sensor 10 is a module with an LCD display. The distance sensor 10 is used to monitor the real-time distance between the collecting component 5 and the slag on the surface of the molten iron, so that the collecting component 5 can automatically move downward into the appropriate depth of the molten iron.

[0036] Example 2, as Figures 1-8As shown, the casting slag treatment equipment is used in the casting process as follows: First, by controlling the movable chassis 1, the casting slag treatment equipment is moved to a position close to the molten iron container where slag needs to be removed. Then, the movable component 4 drives the collection component 5 to move to the upper side of the center of the molten iron container opening, so that the central axis of the first servo motor 51 is aligned with the center of the molten iron container opening. Subsequently, the moving part of the second electric push rod 44 is activated to move downward, driving the entire collection component 5 downward, thereby driving the collection bucket structure composed of the tray 55, filter plate 53, and surrounding plate 54, as well as the scraper 63, to move downward to the lower side of the slag layer in the molten iron container. At this time, the second electric push rod 44 is activated to move downward. The moving part moves upward, causing the entire collecting assembly 5 to move upward, thereby causing the collecting hopper structure composed of the tray 55, filter plate 53, and surrounding plate 54, as well as the scraper 63, to move upward, so that the upper sides of the filter plate 53, surrounding plate 54, and scraper 63 are higher than the slag layer, while the tray 55 is located below the slag layer; Second, the second servo motor 61 is controlled to rotate counterclockwise, which drives the connector 62 to rotate counterclockwise, thereby driving the scraper 63 to rotate counterclockwise, pushing the slag on the surface of the molten iron in the molten iron container to the left open structure of the collecting hopper structure composed of the tray 55, filter plate 53, and surrounding plate 54, so that the slag enters the tray 55. The second servo motor 61 The scraper 63 is driven to rotate counterclockwise until it contacts the surrounding plate 54 and then stops rotating. At this time, the scraper 63, the support plate 55, the filter plate 53, and the surrounding plate 54 form a closed collection hopper structure, causing the scum to accumulate in the closed collection hopper structure. Third, the second electric push rod 44 is controlled to move the scraper 63, the support plate 55, the filter plate 53, and the surrounding plate 54, forming a closed collection hopper structure, and the collected scum is moved upwards until it detaches from the surface of the molten iron. Simultaneously, the molten iron in the closed collection hopper structure flows out through the scraper 63 and the filter plate 53, while the scum remains in the closed collection hopper structure. The collection of scum in the molten iron container is completed. Fourth, the moving component 4 is controlled to drive the collection group... Component 5 moves to the scum dumping area, and then controls the second servo motor 61 to drive the scraper 63 to rotate clockwise to reset, so that the left side of the collection hopper structure composed of the support plate 55, filter plate 53 and surrounding plate 54 is in an open state. The second reduction motor 43 is started to rotate, thereby driving the collection hopper structure to rotate, so that the left open position of the collection hopper structure tilts downward. At this time, the scum in the collection hopper will slide from the support plate 55 to the scum dumping area. Then, the second servo motor 61 is controlled to vibrate, so that the second servo motor 61 drives the connector 62 and scraper 63 to rotate rapidly back and forth and vibrate the filter plate 53 and support plate 55 to prevent scum from remaining on the support plate 55.

[0037] The expansion component 7 of the casting molten iron slag treatment equipment is used as follows: when the scraper 63 starts to rotate and push the slag for collection, the third reduction motor 72 is started to rotate and drive the arc plate 73 to rotate clockwise to open. The scraper 63 drives the arc plate 73 to rotate around the center of the connector 62. The arc plate 73 guides the slag on the surface of the molten iron to the circumference of the scraper 63, so that the scraper 63 can push more slag into the collection component 5, expand the scraping range of the scraping component 6, and improve the collection efficiency of the slag on the surface of the molten iron.

[0038] The operation of the material spreading component of this casting molten iron slag treatment equipment is as follows: Since manually spreading the slag remover requires proximity to the high-temperature molten iron, the heat of the molten iron can easily cause burns to the skin. Therefore, this casting molten iron slag treatment equipment has an automatic slag remover spreading function to replace manual spreading. A slag remover compatible with the molten iron is added to the material hopper 81. Then, the moving component 4 drives the collecting component 5 to move to the upper side of the center of the molten iron container opening. When the central axis of the first servo motor 51 is aligned with the center of the molten iron container opening, the control... Two sets of third electric push rods 84 drive the baffle 85 to move, so that the baffle 85 no longer blocks the bottom of the spreading pipe 82. At this time, the slag remover in the hopper 81 flows out through the diffuser 83. At the same time, the first servo motor 51 is started to drive the spreading assembly to rotate, so that the slag remover is spread into the surface of the molten iron in a circular distribution, thereby realizing the function of safe, efficient and automatic slag remover spreading. By controlling the extension of the third electric push rod 84, the area of ​​the baffle 85 blocking the spreading pipe 82 can be controlled, thereby adjusting the amount of slag remover fed.

[0039] To prevent the slag from being carried into the lower side of the molten iron surface when the collection component 5 descends to the lower side of the slag, the casting slag treatment equipment has a separation plate 9 installed on the lower side of the support plate 55. This separates the slag on the molten iron surface along its lower conical part. The inclined surfaces on both sides of the separation plate 9 guide the slag to float upward, preventing the slag from being pressed under the support plate 55. Otherwise, the slag cannot be pushed into the collection component 5 by the scraper 63, which would affect the slag collection.

[0040] In order to improve the accuracy of the descent depth of the collection component 5 into the molten iron, the casting slag treatment equipment uses a distance sensor 10 to monitor the distance between itself and the slag on the surface of the molten iron in real time when the second electric push rod 44 pushes the collection component 5 and the scraping component 6 to descend. The distance sensor 10 calculates the distance between the collection component 5 and the slag on the surface of the molten iron by using the difference between the monitored distance data and the distance of the collection component 5. The calculated distance between the collection component 5 and the slag on the surface of the molten iron is then displayed on the LCD display module of the distance sensor 10. At this time, the descent depth of the collection component 5 can be precisely controlled according to the data displayed on the LCD display module.

[0041] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A casting slag treatment device, characterized in that: The device includes a mobile chassis (1), a counterweight (2) fixed on the upper left side of the mobile chassis (1), and a heightening frame (3) installed on the upper right side of the mobile chassis (1); a moving component (4) is provided on the upper side of the heightening frame (3), and a collecting component (5) is provided at the moving component (4). The collecting component (5) is used to collect slag on the surface of molten iron, and the moving component (4) is used to drive the collecting component (5) to move in multiple directions; a scraping component (6) is provided at the collecting component (5), and the scraping component (6) is used to push the slag on the surface of molten iron into the collecting component (5).

2. The casting slag treatment equipment according to claim 1, characterized in that: The moving component (4) includes a first geared motor (41), the first geared motor (41) is mounted on the upper side of the riser (3), a first electric push rod (42) is mounted on the output shaft of the first geared motor (41), a second geared motor (43) is mounted on the moving part of the first electric push rod (42), a second electric push rod (44) is mounted on the output shaft of the second geared motor (43), and the collecting component (5) is located at the moving part of the second electric push rod (44).

3. The casting slag treatment equipment according to claim 2, characterized in that: The collecting component (5) includes a first servo motor (51), the moving part of the second electric push rod (44) is equipped with the first servo motor (51), a vertical rod (52) is installed at the eccentric position of the output shaft of the first servo motor (51), a filter plate (53) is installed on the lower side of the vertical rod (52), a surrounding plate (54) is installed on the front side of the filter plate (53), and a support plate (55) is installed between the filter plate (53) and the lower side of the surrounding plate (54).

4. The casting slag treatment equipment according to claim 3, characterized in that: The scraping assembly (6) includes a second servo motor (61), the output shaft of the first servo motor (51) is equipped with the second servo motor (61), the output shaft of the second servo motor (61) is equipped with a connector (62), and the outer cylindrical surface of the connector (62) is equipped with a scraper (63).

5. The casting slag treatment equipment according to claim 4, characterized in that: It also includes an expansion component (7), which is located on the side of the scraper (63) away from the connector (62). The expansion component (7) is used to increase the range of molten iron slag collection. The expansion component (7) includes a bracket (71). The bracket (71) is fixed above the side of the scraper (63) away from the connector (62). A third reduction motor (72) is installed on the upper side of the bracket (71). An arc plate (73) is installed on the lower side of the output shaft of the third reduction motor (72).

6. The casting slag treatment equipment according to claim 5, characterized in that: It also includes a feeding assembly (8), which is located on one side of the output shaft of the first servo motor (51). The feeding assembly (8) is used to sprinkle the slag remover onto the surface of the molten iron. The feeding assembly (8) includes a material box (81). The material box (81) is installed on one side of the output shaft of the first servo motor (51). The bottom of the material box (81) is connected to a sprinkling pipe (82). The sprinkling pipe (82) is provided with multiple sets of diffuser plates (83). A third electric push rod (84) is installed on both sides of the sprinkling pipe (82). A baffle (85) is connected between the moving parts of the two third electric push rods (84). The baffle (85) blocks the lower side of the sprinkling pipe (82).

7. The casting slag treatment equipment according to claim 6, characterized in that: It also includes a separation plate (9), which is installed at the bottom of the tray (55).

8. The casting slag treatment equipment according to claim 7, characterized in that: It also includes a distance sensor (10), which is mounted on the front side of the bin (81).

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