A simple automatic slag removal device for molten iron ingots

Abstract

The present invention relates to the technical field of molten iron ingot casting, and specifically discloses a simple automatic slag scraping device for molten iron ingot casting, comprising a slag scraping mechanism: comprising a fixedly installed drive component and a base, a drive rod connected to the drive component, a cross arm rotatably connected to the drive rod, a support arm rotatably connected to the base, and a slag scraper rotatably connected to the cross arm for integrated slag scraping and suction, wherein the slag scraper, the cross arm, and the support arm are rotatably connected to each other, and a control system: a system for automatically operating the supporting slag scraping mechanism, an automatic slag scraping device is designed to simulate manual slag scraping action, thereby significantly reducing labor intensity and safety threats.

Description

Technical Field

[0001] The present application relates to the technical field of molten iron ingot casting, and specifically discloses a simple automatic slag removal device for molten iron ingot casting. Background Art

[0002] The iron casting machine is a device that casts high-temperature molten iron into shaped iron blocks. Its stable operation is directly related to the subsequent production of blast furnaces and steelmaking. Currently, the molten iron processing capacity of Xichang Steel and Vanadium Steel Plant is basically saturated. Occasionally, when production abnormalities or equipment maintenance occur, molten iron backlogs often occur. In such cases, it is necessary to cast the molten iron produced by the blast furnace into shaped iron blocks and stack them or directly transfer them to the converter for addition to achieve the purpose of molten iron processing and stabilize converter production. Otherwise, it will cause production abnormalities such as reduced or no blast furnace airflow.

[0003] The main process of molten iron ingot casting is that the molten iron enters the cast iron mold through the flow groove. The cast iron mold filled with molten iron moves forward slowly under the drive of the chain. At the same time, the spray cooling head above the cast iron mold sprays cooling water on the cast iron mold containing the molten iron to shape and cool the iron block to meet the target iron block requirements. During the blast furnace smelting process of molten iron, there is often a certain amount of iron slag. As the molten iron passes through the flow groove and enters the cast iron mold, a thick layer of iron slag will float on the surface, causing blockage in the flow groove, resulting in low molten iron temperature and adhesion of the flow groove. Manual cleaning of the adhered iron slag is required, which not only affects the molten iron production but also poses a great safety threat to personnel working around the high-temperature molten liquid.

[0004] In the actual production process, slag removal is usually done manually, which is dangerous and labor-intensive. In view of this, the inventor proposes a simple automatic slag removal device for molten iron ingot casting. Summary of the Invention

[0005] The purpose of the present invention is to design an automatic slag scraping device to simulate manual slag scraping actions, thereby greatly reducing labor intensity and safety threats.

[0006] In order to achieve the above object, the present invention provides the following basic scheme:

[0007] A simple automatic slag removal device for molten iron ingots, comprising

[0008] The slag scraping mechanism includes a fixedly mounted drive assembly and a base, a drive rod connected to the drive assembly, a cross arm rotatably connected to the drive rod, a support arm rotatably connected to the base, and a slag scraper rotatably connected to the cross arm for integrated slag scraping and suction. The slag scraper, cross arm, and support arm are rotatably connected to each other.

[0009] Control system: A system that enables the slag removal mechanism to work automatically.

[0010] The principles and effects of this basic solution are:

[0011] 1. Compared with the existing technology, this device has a simple structure and ingenious design. The slag scraping mechanism in this device is used to clean slag on the surface of molten iron. It has the characteristics of wear resistance and high temperature resistance. With reference to the manual slag scraping action, the automatic slag scraping function can be realized according to the molten iron casting. It has the characteristics of high operating efficiency, automated operation, time and labor saving, and reduced personnel safety risks. In addition, the circular motion of the motor can be converted into the reciprocating motion of the slag scraping mechanism.

[0012] 2. Compared with the existing technology, after the slag scraping mechanism realizes reciprocating motion, the automatic slag scraping function of the slag scraping mechanism is realized, and on the basis of the automatic slag scraping function, a slag scraper for integrated slag scraping and slag suction is set up. The slag scraping and slag suction are integrated through the slag scraper, so that the iron slag is away from the molten iron, and the quality of the molten iron is higher and better.

[0013] Furthermore, the driving assembly includes a motor and a reducer, wherein the motor and the reducer are coaxially connected, and the driving rod is mounted on the reducer. The reducer and the motor are mounted in coordination to achieve circumferential telescopic motion of the driving rod.

[0014] Furthermore, the slag scraper includes a connecting rod rotatably connected to the cross arm, a negative pressure fan installed at the end of the connecting rod, and a slag scraper provided at the output end of the negative pressure fan. The slag scraper is designed as a hollow tube and is connected to the negative pressure fan. A stacking plate for accumulating iron slag is provided at the bottom of the slag scraper away from the negative pressure fan. A plurality of slag suction cylinders are provided at the bottom of the slag scraper and are connected to the slag scraper. This realizes the integration of slag scraping and suction of the slag scraper.

[0015] Furthermore, the slag suction cylinder is arranged in parallel with the stacking plate, and the length of the stacking plate is greater than that of the slag suction cylinder. The parallel arrangement of the slag suction cylinder and the stacking plate realizes rapid and integrated slag removal and suction between the slag suction cylinder and the stacking plate.

[0016] Furthermore, the slag scraper is provided with an infrared temperature sensor near the top of the slag suction cylinder, the main body of the infrared temperature sensor is built into the slag scraper, and the side ends of the infrared temperature sensor are externally arranged on both sides of the slag scraper.

[0017] Furthermore, the inner side of the scraper is provided with a mounting groove, and the scraper suction barrel is mounted in the mounting groove. The lower end of the scraper suction barrel extends from below and cooperates with the stacking plate, while the upper end of the scraper suction barrel is placed in the scraper and cooperates with the negative pressure fan. The scraper suction barrel and the stacking plate can realize rapid and integrated scraping and suction. The scraper suction barrel is mounted in the mounting groove, which realizes an aesthetically pleasing arrangement.

[0018] Furthermore, a slag collecting bucket is detachably connected to the bottom of the scraper near the negative pressure blower. A filter plate is provided inside the scraper near the collecting bucket to prevent the slag from passing through. The purpose of the filter plate is to prevent the slag from affecting the operation of the negative pressure blower.

[0019] Furthermore, the filter plate is tilted toward the side away from the negative pressure fan at an angle of 45 degrees. The tilted filter plate allows the iron slag that hits the filter plate to fall down and be collected by the collection bucket.

[0020] Furthermore, the control system includes

[0021] Manual switch: used to turn on and off the drive components and negative pressure fan;

[0022] Automatic switch: electrically connected to the infrared temperature sensor, and turned on and off according to the threshold set by the infrared temperature sensor;

[0023] Forced stopper: For temperature controller, if the temperature controller setting value is exceeded, the drive component is forced to shut down;

[0024] Temperature display instrument: electrically connected to the temperature controller, displays the temperature in real time. The control system realizes automatic and manual control of the slag removal mechanism.

[0025] Furthermore, the height of the base is lower than the installation height of the drive assembly, thereby better realizing the conversion of circular motion into reciprocating motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 The figure shows a schematic structural diagram of a slag removal mechanism in a simple automatic slag removal device for molten iron ingot casting proposed in an embodiment of the present application;

[0028] Figure 2 The figure shows a schematic structural diagram of a slag skimmer in a simple automatic slag skimming device for molten iron ingot casting proposed in an embodiment of the present application;

[0029] Figure 3 A front view of a slag scraper of a simple automatic slag scraping device for molten iron ingot casting proposed in an embodiment of the present application is shown;

[0030] Figure 4The following is a circuit diagram of a control system in a simple automatic slag removal device for molten iron ingot casting proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0032] The figure marks in the drawings of the specification include: drive assembly 1, drive rod 2, cross arm 3, support arm 4, slag scraper 5, connecting rod 501, negative pressure fan 502, slag scraper 503, infrared temperature sensor 504, stacking plate 505, mounting groove 506, slag suction cylinder 507, collection bucket 508, filter plate 509, base 6.

[0033] Implementation example Figure 1 、 Figure 2 、 Figure 3 and 4 As shown:

[0034] A simple automatic slag removal device for molten iron ingots, comprising

[0035] The slag scraping mechanism includes a fixedly mounted drive assembly 1 and a base 6, a drive rod 2 connected to the drive assembly 1, a cross arm 3 rotatably connected to the drive rod 2, a support arm 4 rotatably connected to the base 6, and a slag scraper 5 rotatably connected to the cross arm 3 for integrated slag scraping and suction. The slag scraper 5, the cross arm 3, and the support arm 4 are rotatably connected to each other.

[0036] like Figure 1 As shown, the drive assembly 1 and base 6 are arranged at different heights, with the base 6 being lower than the mounting height of the drive assembly 1. This effectively converts circular motion into reciprocating motion. Specifically, the drive assembly 1 includes a motor and a reducer, which are coaxially connected to the reducer. The drive rod 2 is mounted on the reducer. The reducer and motor are installed in conjunction to achieve circular reciprocating motion of the drive rod 2.

[0037] In principle: the motor drives the driving rod 2 to rotate, so that the cross arm 3 rotates, and the cross arm 3, under the action of the supporting arm 4, makes the scraper 5 make reciprocating motion, such as Figure 1 As shown, the length of the support arm 4 is greater than the length of the drive rod 2;

[0038] like Figure 2 and Figure 3As shown, the slag scraper 5 includes a connecting rod 501 rotatably connected to the cross arm 3, a negative pressure fan 502 installed at the end of the connecting rod 501, and a slag scraper 503 provided at the output end of the negative pressure fan 502. The slag scraper 503 is designed as a hollow tube and is connected to the negative pressure fan 502. A stacking plate 505 for accumulating iron slag is provided at the bottom of the slag scraper 503 away from the negative pressure fan 502. A plurality of slag suction cylinders 507 are provided at the bottom of the slag scraper 503 and are connected to the slag scraper 503. This realizes the integration of slag scraping and suction of the slag scraper 5.

[0039] Specifically, the slag suction tube 507 is arranged in parallel with the stacking plate 505, and the length of the stacking plate 505 is greater than the length of the slag suction tube 507. The parallel arrangement of the slag suction tube 507 and the stacking plate 505 realizes rapid and integrated slag removal and suction between the slag suction tube 507 and the stacking plate 505.

[0040] Specifically, a mounting groove 506 is formed on the inner side of the slag scraper 503, and a slag suction barrel 507 is mounted in the mounting groove 506. The lower end of the slag suction barrel 507 extends from below and cooperates with the stacking plate 505. The upper end of the slag suction barrel 507 is placed in the slag scraper 503 and cooperates with the negative pressure fan 502. The slag suction barrel 507 and the stacking plate 505 can realize rapid and integrated slag scraping and suction. The installation of the slag suction barrel 507 in the mounting groove 506 realizes an aesthetically pleasing arrangement of the slag suction barrel 507.

[0041] Specifically: the bottom of the slag scraper 503 near the negative pressure fan 502 is detachably connected to a collection bucket 508 for iron slag, and a filter plate 509 is provided inside the slag scraper 503 near the collection bucket 508 to prevent iron slag from passing through. The purpose of setting the filter plate 509 is to prevent iron slag from affecting the operation of the negative pressure fan 502.

[0042] Specifically, an infrared temperature sensor 504 is provided on the top of the slag scraper 503 near the slag suction tube 507 . The main body of the infrared temperature sensor 504 is built into the slag scraper 503 , and the side ends of the infrared temperature sensor 504 are externally arranged on both sides of the slag scraper 503 .

[0043] About automatic slag removal and suction:

[0044] First, there is often a certain amount of iron slag in the process of smelting molten iron in the furnace. When the molten iron passes through the flow groove and enters the cast iron mold, a thick layer of iron slag will float on the surface. This slag removal mechanism is installed close to the flow groove;

[0045] Then, the installation height of the stacking plate 505 just contacts the upper surface of the molten iron. Under the action of reciprocating motion, the stacking plate 505 scrapes away the iron slag on the upper surface. The stacking plate 505 in this case is set to reciprocate back and forth. Under this action, the iron slag will gradually accumulate at the back. At this time, the slag suction tube 507 is used in conjunction with the stacking plate 505, and the negative pressure fan 502 is started. After the negative pressure fan 502 sucks the iron slag through the slag suction tube 507, it is blocked by the filter plate 509 and falls into the collection bucket 508. Later, you only need to clean the collection bucket 508, which is very convenient.

[0046] Control system: A system that enables the slag removal mechanism to work automatically.

[0047] Specific: complete control system Figure 3 The circuit diagram shown can be installed. Specifically: the control system includes a manual switch: used to realize the opening and closing of the drive component 1 and the negative pressure fan 502;

[0048] The automatic switch is electrically connected to the infrared temperature sensor 504 and is turned on and off according to the threshold set by the infrared temperature sensor 504. The forced stop is a temperature controller that forcibly shuts down the drive assembly 1 if the temperature exceeds the set value of the temperature controller. The temperature display is electrically connected to the temperature controller and displays the temperature in real time. The control system realizes automatic and manual control of the slag scraping mechanism.

[0049] Back to Figure 4 As shown in the circuit, the automatic switch and the manual switch are connected in parallel, and the two can be independent. Figure 4 In the circuit, an electromagnetic braking link is added. This measure is a protective measure to achieve the rapid stop of the slag scraping mechanism. Compared with the traditional control, the start value of the temperature controller and the stop value of the temperature controller are connected in parallel, making the two independent.

[0050] This device simulates manual slag removal. When molten iron flows through the cast iron machine's trough, the device activates. The slag removal cycle and rate are set based on the amount of molten iron. The motor, through a reducer, drives rod 2 in a circular motion, which in turn drives cross arm 3 in a reciprocating motion. Finally, the rod 2 stops at its highest position according to the limit, awaiting the next cycle. This device significantly reduces manual labor and safety threats, offering advantages such as novel design, simple structure, low cost, and ease of operation.

[0051] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A simple automatic slag removal device for molten iron ingot casting, characterized by: include The slag scraping mechanism includes a fixedly mounted drive assembly and a base, a drive rod connected to the drive assembly, a cross arm rotatably connected to the drive rod, a support arm rotatably connected to the base, and a slag scraper rotatably connected to the cross arm for integrated slag scraping and suction. The slag scraper, cross arm, and support arm are rotatably connected to each other. Control system: a system that supports the automatic operation of the slag removal mechanism; The slag scraper includes a connecting rod rotatably connected to the cross arm, a negative pressure fan installed at the end of the connecting rod, and a slag scraper provided at the output end of the negative pressure fan. The slag scraper is designed as a hollow cylinder and is connected to the negative pressure fan. A stacking plate for stacking iron slag is provided at the bottom of the slag scraper away from the negative pressure fan. A plurality of slag suction cylinders are provided at the bottom of the slag scraper, the slag suction cylinders are connected to the slag scraper, the slag suction cylinders are arranged parallel to the stacking plate, and the length of the stacking plate is greater than that of the slag suction cylinders. An installation groove is provided on the inner side of the slag scraper, and the slag suction tube is installed in the installation groove. The lower end of the slag suction tube passes through from below and is used in conjunction with the stacking plate. The upper end of the slag suction tube is placed in the slag scraper and is used in conjunction with the negative pressure fan. The bottom of the slag scraper close to the negative pressure fan is detachably connected to a collection bucket for iron slag, and a filter plate is provided inside the slag scraper near the collection bucket to prevent iron slag from passing through.

2. A simple automatic slag removal device for molten iron ingot casting according to claim 1, characterized in that: The driving assembly includes a motor and a reducer, the motor is coaxially connected to the reducer, and the driving rod is installed on the reducer.

3. A simple automatic slag removal device for molten iron ingot casting according to claim 2, characterized in that: The slag scraper is provided with an infrared temperature sensor near the top of the slag suction cylinder. The main body of the infrared temperature sensor is built into the slag scraper, and the side ends of the infrared temperature sensor are externally arranged on both sides of the slag scraper.

4. A simple automatic slag removal device for molten iron ingot casting according to claim 3, characterized in that: The filter plate is tilted toward a side away from the negative pressure fan, and the tilt angle is 45°.

5. A simple automatic slag removal device for molten iron ingot casting according to claim 4, characterized in that: The control system includes Manual switch: used to turn on and off the drive components and negative pressure fan; Automatic switch: electrically connected to the infrared temperature sensor, and turned on and off according to the threshold set by the infrared temperature sensor; Forced stopper: For temperature controller, if the temperature controller setting value is exceeded, the drive component is forced to shut down; Temperature display instrument: electrically connected to the temperature controller to display the temperature in real time.

6. A simple automatic slag removal device for molten iron ingot casting according to claim 1, characterized in that: The height of the base is lower than the installation height of the drive assembly.

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