Device for emergently treating overweight of ladle

Abstract

The utility model belongs to the technical field of steelmaking, and particularly discloses a device for emergency treatment of ladle overweight, which comprises a plate blank and an iron storage tank, the iron storage tank comprises a panel and a sealing plate, the panel is welded on the side surface of the plate blank, the sealing plate is a right triangle steel plate, the inclined edge of the sealing plate is welded with the panel, and the inclined edge of the sealing plate is welded with the plate blank. The right-angle sides of the sealing plates are welded to the plate blank, and the panels and the sealing plates are symmetrically arranged on the two sides of the plate blank. In the iron tapping process of iron making, too much and overweight tapping can be caused due to the fact that line turning or under-furnace weighing is not accurate, a steelmaking traveling crane metallurgy casting crane is strictly limited in hoisting tonnage, the safety risk of overweight hoisting is extremely high, molten iron is solidified in a ladle due to the fact that hoisting cannot be conducted for a long time, and huge loss is caused. The slab and the iron storage tank extend into the overweight ladle, molten iron enters the iron storage tank, a part of the molten iron is taken away through the operation, the problem that the ladle is overweight and cannot be lifted is rapidly solved, and the molten iron is prevented from being solidified.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking technology, specifically to a device for emergency handling of an overweight molten iron ladle. Background Technology

[0002] The blast furnace-converter "one-ladle-to-end" interface mode is a new technology for optimizing the metallurgical process interface. It eliminates the traditional torpedo-car or molten iron ladle transfer at the blast furnace-converter interface, directly using a molten iron ladle to pour molten iron into the converter. In this process, the molten iron ladle performs multiple functions, including receiving, transporting, buffering, pre-treating, converter pouring, rapid container turnover, and heat preservation. During iron tapping, inaccurate weighing on the line or under the furnace can lead to excessive weight. Steelmaking cranes and metallurgical casting cranes have strict lifting tonnage limits; overloading poses a significant safety risk, and prolonged inability to lift can cause molten iron to solidify inside the ladle, resulting in substantial losses. Therefore, an emergency response method or device is needed.

[0003] Patent CN101249558B discloses a "one-pot" process for ironmaking and steelmaking, which includes the receiving, transportation, buffer storage, pretreatment, converter charging, container turnover, and molten iron heat preservation processes of blast furnace molten iron. All these processes are completed within a single molten iron ladle, changing the traditional ironmaking-steelmaking interface model. It eliminates the need for ladle pits or mixing furnaces in the steelmaking workshop, as well as dust removal systems, reducing molten iron transfer operations. The process features a short flow rate and compact layout, reducing molten iron temperature drop by 25°C-30°C, lowering energy consumption, reducing iron loss and dust pollution, promoting cleaner production, reducing land occupation, and saving investment, thus offering significant economic and social benefits.

[0004] Because the furnace weighing accuracy is not high, it can lead to excessive iron output and overloading. The above process lacks an emergency plan for handling overloaded molten iron ladles. There is a risk that if the molten iron ladle is overloaded, it cannot be lifted for a long time, causing the molten iron to solidify inside the ladle and resulting in huge losses. Utility Model Content

[0005] The purpose of this invention is to provide an emergency device for handling overweight molten iron ladles, in order to solve the problem that when a molten iron ladle is overweight, it cannot be lifted for a long time, causing the molten iron to solidify inside the ladle and resulting in huge losses.

[0006] To achieve the above objectives, the basic solution provided by this utility model is as follows: a device for emergency handling of overweight molten iron ladles, comprising a slab and an iron storage tank, wherein the iron storage tank comprises a panel and a sealing plate, the panel being welded to the side of the slab, the sealing plate being a right-angled triangular steel plate, the hypotenuse of the sealing plate being welded to the panel, and sealing plates being welded to both sides of the panel, the right-angled side of the sealing plate being welded to the slab.

[0007] The principle and beneficial effects of this utility model are as follows: the panel and the slab are welded to form a certain angle, and an iron storage tank that can store molten iron is formed between the panel, the slab and the sealing plate. By using a crane and wire rope to hoist the slab into the overweight molten iron ladle to hold out a portion of the molten iron, the problem of the molten iron ladle being overweight can be quickly solved and the molten iron can be prevented from solidifying.

[0008] Option 2, a preferred embodiment of the basic option, involves several sets of panels and sealing plates symmetrically arranged on both sides of the slab. Multiple sets of iron storage troughs are provided on both sides of the slab, allowing control over the amount of molten iron collected by adjusting the depth to which the slab is inserted into the ladle, thus preventing excessive molten iron from being collected and reducing waste.

[0009] Option 3, a preferred option of the basic option, involves providing a fire-resistant protective layer on the surfaces of the panel and the sealing plate. The material of the fire-resistant protective layer is... and mixture. Its melting point is 2852℃. The melting point of both is 2054℃. When mixed, the material can withstand extremely high temperatures, with molten iron reaching 1300℃-1400℃. and The mixture can resist the erosion and scouring of molten steel, molten iron, slag, etc., extend the service life of the device for emergency handling of overweight molten iron ladles, and ensure the normal operation of high-temperature equipment.

[0010] Option 4, a preferred option of the basic scheme, features lifting lugs welded to the top of the slab. This facilitates the connection of shackles or wire ropes, enabling crane lifting.

[0011] Option 5, a preferred embodiment of Option 4, features stiffening plates welded to both sides of the lifting lug. These stiffening plates enhance the connection strength between the lifting lug and the slab.

[0012] Option Six, a preferred option of the basic scheme, involves a traction rope fixedly connected to the end of the slab. This traction rope is a steel wire rope with a fire-resistant protective layer. For long or easily swaying cylindrical objects, the traction rope can be used to assist in stabilization. The traction rope should be of sufficient length to prevent operators from approaching the molten iron. The tension of the traction rope is controlled by personnel on the ground. When the object shows signs of swaying, adjustments are made promptly via the traction rope to maintain stability and prevent spillage of molten iron during crane operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a device for emergency handling of an overweight molten iron ladle according to the present invention;

[0014] Figure 2 This is a front view of a device for emergency handling of an overweight molten iron ladle according to this utility model;

[0015] Figure 3 This is a left view of a device for emergency handling of an overweight molten iron ladle according to this utility model. Detailed Implementation

[0016] The present invention will be further described in detail below through specific embodiments:

[0017] The reference numerals in the accompanying drawings are: 1-slab, 2-iron storage trough, 3-panel, 4-sealing plate, 5-lifting lug, 6-stiffening plate, 7-traction rope.

[0018] Example

[0019] like Figures 1 to 3 As shown: An emergency device for handling overweight molten iron ladles includes a slab 1 and several iron storage tanks 2. Each iron storage tank 2 includes a panel 3 and a sealing plate 4. The panel 3 is welded to the slab 1 at a 30° angle. The sealing plate 4 is a right-angled triangular steel plate, with its hypotenuse welded to the panel 3 and its right-angled side welded to the slab 1. Sealing plates 4 are welded to both sides of the panel 3. Several panels 3 and sealing plates 4 are symmetrically arranged on both sides of the slab 1, forming the iron storage tanks 2 between the panels 3, sealing plates 4, and the slab 1. A fire-resistant protective layer is provided inside the iron storage tanks 2. The fire-resistant protective layer uses... and The mixture has a lifting lug 5 welded to the top of the slab 1, stiffening plates 6 welded to both sides of the lifting lug 5, and a traction rope 7 fixedly connected to the end of the slab 1. The traction rope 7 is a steel wire rope with a fire-resistant protective layer on its surface.

[0020] The implementation method of this embodiment is as follows: When the molten iron ladle is overweight, it is connected to the lifting lug 5 by a retaining ring or wire rope. The emergency device for handling overweight molten iron ladle is hoisted to the top of the molten iron ladle by a crane. The crane is then lowered, and the slab 1 and the iron storage tank 2 are inserted into the molten iron. Some of the molten iron is collected into the iron storage tank 2. The crane is then raised, and the operator controls the traction rope 7 from a distance. The traction direction is consistent with the direction of the crane's movement to prevent the slab 1 from shaking and causing the molten iron to spill out, which would pose a safety hazard. The slab 1 is hoisted into the empty molten iron ladle. The crane is then lowered to tilt the slab 1, allowing the molten iron to flow out of the iron storage tank 2. Finally, the emergency device for handling overweight molten iron ladle is reset, which can quickly solve the problem of overweight molten iron ladle and avoid the molten iron from solidifying due to prolonged stagnation of the molten iron ladle.

[0021] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for emergency handling of an overweight molten iron ladle, characterized in that, The slab includes a slab (1) and an iron storage tank (2). The iron storage tank (2) includes a panel (3) and a sealing plate (4). The panel (3) is welded to the side of the slab (1). The sealing plate (4) is a right-angled triangular steel plate. The hypotenuse of the sealing plate (4) is welded to the panel (3). The sealing plate (4) is welded to both sides of the panel (3). The right-angled side of the sealing plate (4) is welded to the slab (1).

2. The device for emergency handling of overweight molten iron ladles according to claim 1, characterized in that... The panel (3) and the sealing plate (4) are provided in several groups, and the panel (3) and the sealing plate (4) are symmetrically arranged on both sides of the slab (1).

3. The device for emergency handling of overweight molten iron ladles according to claim 1, characterized in that, The top of the slab (1) is welded with a lifting lug (5).

4. The device for emergency handling of overweight molten iron ladles according to claim 3, characterized in that... The lifting lug (5) has stiffening plates (6) welded on both sides.

5. The device for emergency handling of overweight molten iron ladles according to claim 1, characterized in that, The end of the slab (1) is fixedly connected to a traction rope (7), which is a steel wire rope with a fire-resistant protective layer.

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