A calibration device for a hot metal torpedo ladle

Abstract

The utility model discloses a kind of calibration devices for molten iron torpedo ladle, it is related to steelmaking technical field, including torpedo ladle off car disc, train locomotive head and standard steel billet weight, torpedo ladle off car disc is movably set on the track where blast furnace lower track scale is, train locomotive head is driven connection with torpedo ladle off car disc, standard steel billet weight is laid on torpedo ladle off car disc, wherein, the total weight of torpedo ladle off car disc and standard steel billet weight is known state.By the overall weight of torpedo ladle off car disc and standard steel billet weight, the measurement accuracy of track scale is compared and checked on site, realizes the on-line calibration function of large molten iron torpedo ladle, quickly solve the problem that molten iron torpedo ladle cannot be calibrated in time, improves torpedo ladle calibration efficiency, avoid to compare and check by old track scale for long distance, solve the defect that molten iron temperature drops in old calibration mode, avoid heat loss due to calibration operation, guarantee the stability and high efficiency of blast furnace production.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking technology, and in particular to a calibration device for a molten iron torpedo ladle. Background Technology

[0002] As a large transport vehicle for molten iron in blast furnaces, the torpedo ladle plays a crucial connecting role in the ironmaking and steelmaking processes. It transports molten iron (approximately 1500 degrees Celsius) from the blast furnace to the steelmaking process. After smelting, the qualified steel is cast into billets or slabs, providing raw materials for hot and cold rolling. To further improve smelting efficiency during steelmaking, more accurate measurement of the molten iron's weight is needed, along with data support for single-ladle to single-utensil connections. Therefore, the weight of iron loaded into the torpedo ladle needs to be calibrated.

[0003] Previously, calibration was performed by comparing the weights using a separate 600-ton rail scale. However, since the 600-ton rail scale was some distance from the three blast furnaces, each comparison would cause the molten iron torpedo ladle to spend more time on the railway line, resulting in a drop in the temperature of the molten iron. This would lead to more fuel being wasted in steelmaking, causing heat loss and energy waste, which would result in losses for continuous steelmaking production. Utility Model Content

[0004] To address the aforementioned problems, this application provides a calibration device for molten iron torpedo ladles.

[0005] This application provides a calibration device for a molten iron torpedo ladle, including a torpedo ladle uncart platform, a locomotive, and a standard steel billet weight. The torpedo ladle uncart platform is movably mounted on the track where the blast furnace under-mounted rail scale is located. The locomotive is driven to connect with the torpedo ladle uncart platform. The standard steel billet weight is placed flat on the torpedo ladle uncart platform. The total weight of the torpedo ladle uncart platform and the standard steel billet weight is known.

[0006] In some embodiments, the torpedo canister unloading platform includes:

[0007] The base, on which the standard steel billet weight is placed;

[0008] Two wheel bases are provided opposite each other and are respectively connected to the bottom side of the base;

[0009] The wheels are mounted on wheel bases and travel on the track where the blast furnace under-furnace rail scale is located.

[0010] In some embodiments, the torpedo canister unloading platform includes:

[0011] The fence is installed around the upper perimeter of the base, forming a flat space for the standard steel billet weight.

[0012] In some implementations, the fence includes:

[0013] Multiple vertical rods are arranged at intervals along the upper perimeter of the base; and

[0014] Multiple horizontal bars connect two adjacent vertical bars in the circumferential direction of the base.

[0015] In some implementations, the standard billet weight has a square structure, with its four sides attached to the inside of the enclosure.

[0016] In some embodiments, the bottom surface of the standard billet weight is a plane, the top side of the torpedo canister's loading surface is a horizontal plane, and the bottom surface of the standard billet weight is in contact with the loading surface.

[0017] In some implementations, multiple crossbars are connected in sequence along the circumference of the base to form a ring structure;

[0018] Multiple crossbars are distributed at intervals along the height of the base.

[0019] In some implementations, the crossbar and the vertical bar are welded together.

[0020] In some implementations, the total weight of the torpedo ladle undercarriage and the standard billet weight is less than the maximum permissible measurement value of the blast furnace undercarriage rail scale.

[0021] In some implementations, the total weight of the torpedo canister undercarriage and standard steel billet weight is 500 tons.

[0022] The beneficial effects of this application are as follows: It provides a calibration device for a molten iron torpedo ladle, including a torpedo ladle undercarriage, a locomotive, and a standard steel billet weight. The waste torpedo ladle undercarriage is used as the calibration chassis of this device. The torpedo ladle undercarriage can naturally move on the track where the blast furnace under-gear scale is located. The locomotive provides the driving force for the movement of the torpedo ladle undercarriage. The pre-fabricated standard steel billet weight is placed flat on the torpedo ladle undercarriage, and the total weight of the torpedo ladle undercarriage and the standard steel billet weight is obtained in advance. Generally, the total weight of the torpedo ladle undercarriage and the standard steel billet weight is in tons, and values ​​in whole hundreds are preferred. When it is necessary to calibrate the blast furnace under-gear scale, the locomotive drives the torpedo ladle undercarriage... The locomotive, carrying a standard billet weight, moves to the blast furnace under-furnace rail scale for online calibration. After calibration, the locomotive drives the torpedo ladle unloading platform away from the blast furnace under-furnace rail scale and back to its original waiting position. The overall weight of the torpedo ladle unloading platform and the standard billet weight is compared on-site to verify the accuracy of the rail scale. This realizes the online calibration function of large molten iron torpedo ladles, quickly solving the problem of the inability to calibrate molten iron torpedo ladles in a timely manner, improving the calibration efficiency of torpedo ladles, avoiding remote comparison and verification using the old rail scale, thus solving the defect of molten iron temperature drop in the old calibration method, avoiding heat loss due to calibration operations, and ensuring the stability and efficiency of blast furnace production. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0024] Figure 1 This application provides a structural schematic diagram of a calibration device for a molten iron torpedo ladle.

[0025] Attached diagram labels: 100-Torpedo canister undercarriage platform, 110-Base, 120-Wheel base, 130-Wheel, 140-Fence, 141-Vertical bar, 142-Horizontal bar, 200-Standard steel billet weight. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0028] Please refer to Figure 1 A calibration device for a molten iron torpedo ladle includes a torpedo ladle unloading platform 100, a locomotive, and a standard billet weight 200. The torpedo ladle unloading platform 100 is movably mounted on the track where the blast furnace under-mount scale is located. The locomotive is driven to the torpedo ladle unloading platform 100. The standard billet weight 200 is placed flat on the torpedo ladle unloading platform 100. The total weight of the torpedo ladle unloading platform 100 and the standard billet weight 200 is known.

[0029] Using the discarded torpedo ladle undercarriage 100 as the calibration car chassis of this device, the torpedo ladle undercarriage 100 can naturally move on the track where the blast furnace undercarriage scale is located. The locomotive provides the driving force for the movement of the torpedo ladle undercarriage 100. The pre-made standard steel billet weight 200 is placed flat on the torpedo ladle undercarriage 100, and the total weight of the torpedo ladle undercarriage 100 and the standard steel billet weight 200 is obtained in advance.

[0030] Understandably, the total weight of the torpedo ladle unloading platen 100 and the standard billet weight 200 is less than the maximum permissible measurement value of the blast furnace under-rail scale. Generally, the total weight of the torpedo ladle unloading platen 100 and the standard billet weight 200 is expressed in tons, with values ​​rounded to the nearest hundred being preferred. In some embodiments, the inventors chose a total weight of 500 tons for the torpedo ladle unloading platen 100 and the standard billet weight 200, which meets the calibration requirements of the blast furnace under-rail scale.

[0031] When it is necessary to calibrate the blast furnace under-rail scale, the locomotive drives the torpedo ladle unloading platform 100, carrying the standard billet weight 200, to move above the blast furnace under-rail scale to perform online calibration. After calibration, the locomotive drives the torpedo ladle unloading platform 100 away from the blast furnace under-rail scale and returns to the original waiting position.

[0032] The accuracy of the rail scale was verified by comparing the overall weight of the torpedo ladle unloading plate 100 and the standard billet weight 200 on-site. This enabled the online calibration function of large molten iron torpedo ladles, quickly solving the problem of the inability to calibrate molten iron torpedo ladles in a timely manner, improving the calibration efficiency of torpedo ladles, and avoiding remote comparison and verification through the old rail scale. This solved the defect of molten iron temperature drop in the old calibration method, avoided heat loss due to calibration operations, and ensured the stability and efficiency of blast furnace production.

[0033] In some implementation methods, please refer to Figure 1 The torpedo ladle undercarriage 100 includes a base 110, a wheel base 120, and wheels 130 mounted on the wheel base 120. The base 110 and the wheel base 120 constitute the general structure of the torpedo ladle undercarriage 100. Two wheel bases 120 are provided opposite to each other. The two wheel bases 120 are respectively connected to the bottom side of the base 110. The standard steel billet weight 200 is placed on the base 110, and the wheels 130 travel on the track where the blast furnace undercarriage rail scale is located.

[0034] In some implementation methods, please refer to Figure 1 The torpedo canister unloading platform 100 includes a railing 140, which surrounds the upper periphery of the base 110. The railing 140 encloses a space for the standard steel billet weight 200 to be placed flat on the base 110 and between the railing 140.

[0035] In some embodiments, the standard billet weight 200 has a square structure, and the four sides of the standard billet weight 200 are attached to the inner side of the fence 140. The fence 140 provides sufficient limiting effect for the standard billet weight 200, further reducing the possibility of swaying of the standard billet weight 200 during the movement of the torpedo can unloading platform 100 along the track.

[0036] In some implementation methods, please refer to Figure 1 The fence 140 includes multiple vertical bars 141 and multiple horizontal bars 142. The vertical bars 141 are arranged sequentially and at intervals along the upper periphery of the base 110. The vertical bars 141 mainly limit the position of the standard steel billet weight 200. The multiple horizontal bars 142 connect two adjacent vertical bars 141 in the circumferential direction of the base 110. The horizontal bars 142 can be connected to the vertical bars 141 by welding. The horizontal bars 142 act as reinforcing ribs, enabling the vertical bars 141 to be securely installed on the base 110.

[0037] In some implementation methods, please refer to Figure 1Along the circumference of the base 110, multiple crossbars 142 are connected in sequence to form a ring structure; along the height of the base 110, multiple crossbars 142 are distributed at intervals. In this way, the fence 140 is arranged in a regular horizontal and vertical manner, which has advantages in both assembly and application.

[0038] In some implementation methods, please refer to Figure 1 The bottom surface of the standard steel billet weight 200 is flat, and the top side of the torpedo canister undercarriage plate 100 is horizontal. The bottom surface of the standard steel billet weight 200 is in contact with the holding surface, and the bottom surface of the standard steel billet weight 200 and the holding surface are in contact with each other in a surface-to-surface manner, which improves the stability of the standard steel billet weight 200 when it is placed flat on the base 110.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A calibration device for a hot metal torpedo ladle, characterized in that, include: The torpedo pot unloading platform is movably mounted on the track where the blast furnace under-furnace rail scale is located; The train locomotive is driven by the undercarriage of the torpedo canister. A standard steel billet weight is placed flat on the undercarriage platform of the torpedo canister. The total weight of the torpedo canister undercarriage plate and the standard steel billet weight is known.

2. The gauge for a torpedo ladle as claimed in claim 1, wherein The torpedo canister unloading platform includes: The standard steel billet weight is placed on the base. Two wheel bases are provided opposite to each other and are respectively connected to the bottom side of the base; The wheels are mounted on the wheel base and travel on the track where the blast furnace under-furnace rail scale is located.

3. The calibration device for molten iron torpedo ladles as described in claim 2, characterized in that, The torpedo canister unloading platform includes: A fence is installed around the upper perimeter of the base, forming a space for the standard steel billet weight to be placed flat.

4. The gauge for a torpedo ladle as claimed in claim 3, wherein The fence includes: Multiple vertical rods are arranged sequentially at intervals along the upper periphery of the base; and Multiple crossbars are connected between two adjacent vertical bars in the circumferential direction of the base.

5. The calibration device for molten iron torpedo ladles as described in claim 4, characterized in that, The standard steel billet weight has a square structure, and its four sides are attached to the inner side of the fence.

6. The calibration device for molten iron torpedo ladles as described in claim 1, characterized in that, The bottom surface of the standard steel billet weight is a plane, and the top side of the torpedo canister's undercarriage plate is a horizontal plane. The bottom surface of the standard steel billet weight is in contact with the top side of the plate.

7. The calibration device for molten iron torpedo ladles as described in claim 4, characterized in that, Along the circumference of the base, a plurality of crossbars are connected in sequence to form a ring structure; Along the height direction of the base, a plurality of crossbars are distributed at intervals.

8. The calibration device for molten iron torpedo ladles as described in claim 4, characterized in that, The horizontal bar is welded to the vertical bar.

9. The calibration device for molten iron torpedo ladles as described in claim 1, characterized in that, The total weight of the torpedo ladle unloading platform and the standard billet weight is less than the maximum allowable measurement value of the blast furnace under-rail scale.

10. The calibration device for a molten iron torpedo ladle as described in claim 9, characterized in that, The total weight of the torpedo canister unloading platform and the standard steel billet weight is 500 tons.

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