Novel general steel slag chute for buggy ladle

By installing the chute body on the ladle car to guide and block the splashing molten steel and slag, the problems of ladle car frame erosion and motor damage are solved, and the stable operation and service life of the equipment are achieved.

CN120755336APending Publication Date: 2025-10-10NANJING IRON & STEEL CO LTD
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Patent Information

Application Number
CN202510955280.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-11
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

When the converter ladle car is tapping steel, molten steel or slag splashes onto the ladle car, causing frame corrosion and deformation and motor damage, affecting production efficiency and safety. Existing technologies cannot effectively solve this problem.

Method used

A new type of universal ladle car slag chute is designed, including a mounting base and a chute body. The chute body consists of an inclined chute bottom plate and side plates. The side plates are isosceles trapezoidal. The bottom plate is coated with a high-temperature resistant coating or paved with refractory materials to guide and block splashing molten steel and slag.

Benefits of technology

Effectively guide molten steel and slag to avoid splashing onto the ladle car, protect the ladle car frame and motor, extend equipment life, ensure stable operation, and reduce maintenance risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a novel universal steel slag chute for a buggy ladle, which relates to the technical field of metallurgy and comprises a mounting seat fixedly arranged on the buggy ladle; the chute body comprises a chute bottom plate fixedly mounted on the mounting seat, the chute bottom plate is obliquely arranged, and one end of the chute bottom plate in the length direction is higher than the other end of the chute bottom plate in the length direction. The chute body is arranged on the buggy ladle, molten steel and steel slag splashed during converter tapping can be guided and slide into the underground tunnel below the converter, the situation that a buggy ladle frame deforms and a motor speed reducer is burnt down due to the fact that the molten steel or the steel slag is splashed to the buggy ladle is avoided, and therefore stable operation of the buggy ladle is guaranteed.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metallurgy, in particular to a novel universal steel ladle car steel slag chute. BACKGROUND

[0002] In the field of steel metallurgy, the converter steel ladle car is an important equipment for converter smelting. In actual use, the converter steel ladle car is responsible for transporting molten steel to the refining cross, and is an important equipment that connects the upstream and downstream. However, when the converter is tapping, the molten steel or steel slag splashes onto the steel ladle car, which, in a light case, causes the steel ladle car frame to be eroded by the high-temperature molten steel and steel slag for a long time, affects the service life of the steel ladle car, and prolongs the molten steel transportation time, thereby affecting efficient production. In a serious case, the molten steel or steel slag splashes onto the motor of the steel ladle car, causing the motor reducer to burn out, the steel ladle car to be unable to start, and the normal operation of production to be affected. The replacement of the steel ladle car also increases the work intensity and safety risk of maintenance workers. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a novel universal steel ladle car steel slag chute.

[0004] To solve the above technical problems, the technical scheme of the present application is as follows: A novel universal steel ladle car steel slag chute, comprising: a mounting seat fixedly arranged on the steel ladle car; a chute body comprising a chute bottom plate fixedly mounted on the mounting seat, the chute bottom plate being arranged obliquely, and one end of the chute bottom plate in the length direction being higher than the other end in the length direction.

[0005] As a preferred scheme of the novel universal steel ladle car steel slag chute, the chute body further comprises chute side plates fixedly mounted on both sides of the chute bottom plate, and both of the chute side plates are perpendicular to the chute bottom plate.

[0006] As a preferred scheme of the novel universal steel ladle car steel slag chute, the cross-sectional shape of the chute side plate is isosceles trapezoidal, and the length of the lower base of the isosceles trapezoid is equal to the length of the chute bottom plate.

[0007] As a preferred scheme of the novel universal steel ladle car steel slag chute, the upper end surface of the chute bottom plate is coated with a high-temperature resistant coating.

[0008] As a preferred scheme of the novel universal steel ladle car steel slag chute, the upper end surface of the chute bottom plate is uniformly paved with a refractory material.

[0009] As a preferred scheme of the novel universal steel ladle car steel slag chute, the refractory material comprises refractory bricks.

[0010] As a preferred scheme of the new universal ladle car steel slag chute of the application, the included angle between the chute bottom plate and the horizontal plane is 60°.

[0011] As a preferred scheme of the new universal ladle car steel slag chute of the application, the length of the chute bottom plate is 3600mm, and the width is 2550mm.

[0012] The beneficial effects of the application are: (1) The application can guide the splashed molten steel and steel slag during the converter tapping to slide into the pit under the furnace by setting the chute body on the ladle car, so as to avoid the splashing of molten steel or steel slag onto the ladle car frame to cause the deformation of the ladle car frame and the burning of the motor reducer, thereby ensuring the stable operation of the ladle car.

[0013] (2) The chute side plates are fixedly installed on both sides of the chute bottom plate, which can block the splashing of the molten steel and steel slag far away from the chute bottom plate to avoid the splashing into the area outside the coverage range of the chute bottom plate.

[0014] (3) The cross-sectional shape of the chute side plate is set as an isosceles trapezoid, which can not only ensure the blocking effect on the splashed molten steel and steel slag, but also save the manufacturing cost of the chute side plate.

[0015] (4) The high-temperature-resistant coating or refractory material is coated on the upper end face of the chute bottom plate, which effectively improves the high-temperature-resistant performance of the chute bottom plate, thereby prolonging the service life of the chute body. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 The structural schematic view of the new universal ladle car steel slag chute provided by the application is shown in the figure. Figure 2 The side view of the new universal ladle car steel slag chute provided by the application is shown in the figure. 1, mounting seat; 2, chute bottom plate; 3, chute side plate; 4, high-temperature-resistant coating. DETAILED DESCRIPTION

[0018] In order to make the content of the application more easily understood, the following will further describe the application in detail according to the specific embodiments and in combination with the drawings.

[0019] Figure 1The structure diagram of the novel general-purpose steel ladle car steel slag chute provided by the embodiment of the present application is shown. The device comprises a mounting seat 1 and a chute body. The chute body is fixedly installed on the steel ladle car through the mounting seat 1, can guide the molten steel or steel slag splashed during the tapping of the converter, and avoid the splashing onto the steel ladle car or the motor, thereby affecting the normal operation of the steel ladle car.

[0020] Specifically, the mounting seat 1 is fixedly installed on the steel ladle car. The chute body comprises a chute bottom plate 2 fixedly installed on the mounting seat 1. Referring to Figure 1 , the chute bottom plate 2 is obliquely arranged on the steel ladle car, and one end of the length direction of the chute bottom plate 2 is higher than the other end of the length direction of the chute bottom plate 2. In this way, the chute bottom plate 2 can guide the molten steel and steel slag splashed during the tapping of the converter to slide into the furnace under the tunnel, thereby ensuring the stable operation of the steel ladle car.

[0021] In the embodiment, the included angle between the chute bottom plate 2 and the horizontal plane is 60°.

[0022] Preferably, chute side plates 3 are fixedly installed on both sides of the chute bottom plate 2. Both of the two chute side plates 3 are arranged perpendicularly to the chute bottom plate 2. The chute side plates 3 can block the molten steel and steel slag splashed far away, thereby avoiding the splashing to the area outside the coverage range of the chute bottom plate 2.

[0023] It can be understood that the molten steel and steel slag splashed during the tapping of the converter are generally concentrated at the position of the middle part of the chute side plate 3. Therefore, in the embodiment, the cross-sectional shape of the chute side plate 3 is set as an isosceles trapezoid, and the length of the lower base of the isosceles trapezoid is equal to the length of the chute bottom plate 2. In this way, while ensuring the blocking effect on the splashed molten steel and steel slag, the manufacturing cost of the chute side plate 3 can also be saved.

[0024] In the embodiment, the length of the chute bottom plate 2 is 3600 mm, and the width is 2550 mm.

[0025] In addition, the temperature of the molten steel and steel slag splashed during the tapping of the converter is relatively high. In order to prolong the service life of the chute body, in the embodiment, a high-temperature-resistant coating 4 is coated on the upper end surface of the chute bottom plate 2. The high-temperature-resistant coating 4 effectively improves the high-temperature-resistant performance of the chute bottom plate 2, thereby prolonging the service life of the chute body.

[0026] In another embodiment, refractory material is uniformly laid on the upper end surface of the chute bottom plate 2. The refractory material blocks the high temperature of the molten steel and steel slag, effectively improves the high-temperature-resistant performance of the chute bottom plate 2, and thereby prolongs the service life of the chute body. The refractory material can be refractory bricks, etc.

[0027] Thus, the technical scheme of the present application can guide the molten steel and steel slag splashed during the tapping of the converter to slide into the under-furnace tunnel, avoid the splashing of the molten steel or steel slag onto the ladle car to cause the deformation of the frame of the ladle car and the burning of the motor reducer, and thus ensure the stable operation of the ladle car.

[0028] In addition to the above-mentioned embodiments, the present application can also have other implementation manners; any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present application.

Claims

1. A new type of universal ladle car slag chute, characterized by: include: A mounting seat (1) is fixedly mounted on the ladle car; The chute body comprises a chute bottom plate (2) fixedly mounted on the mounting seat (1); the chute bottom plate (2) is arranged tilted, and one end of the chute bottom plate (2) in the longitudinal direction is higher than the other end in the longitudinal direction.

2. The new universal ladle car slag chute according to claim 1 is characterized by: The chute body further comprises chute side plates (3) fixedly mounted on both sides of the chute bottom plate (2), and the two chute side plates (3) are both perpendicular to the chute bottom plate (2).

3. The novel universal ladle car slag chute according to claim 2 is characterized in that: The cross-sectional shape of the chute side plate (3) is an isosceles trapezoid, and the length of the lower base of the isosceles trapezoid is equal to the length of the chute bottom plate (2).

4. The novel universal ladle car slag chute according to claim 1 is characterized in that: The upper end surface of the chute bottom plate (2) is coated with a high-temperature resistant coating (4).

5. The novel universal ladle car slag chute according to claim 1 is characterized in that: The upper end surface of the chute bottom plate (2) is evenly paved with refractory material.

6. The novel universal ladle car slag chute according to claim 5, characterized in that: The refractory material includes refractory bricks.

7. The novel universal ladle car slag chute according to claim 1 is characterized in that: The angle between the chute bottom plate (2) and the horizontal plane is 60°.

8. The novel universal ladle car slag chute according to claim 1 is characterized in that: The length of the chute bottom plate (2) is 3600 mm and the width is 2550 mm.