Slag removal plate for quick slag removal of molten iron

By designing a U-shaped structure of slag strip plate, including a slag strip sleeve, an intermediate baffle and a two-wing baffle, the problem of low efficiency of the existing slag strip plate is solved, the slag stripping time is shortened and the desulfurization cycle is optimized, and the production efficiency and product quality are improved.

CN222710809UActive Publication Date: 2025-04-04CHONGQING IRON & STEEL CO LTD
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Patent Information

Application Number
CN202420737080.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-09
Publication Date
2025-04-04
Estimated Expiration
2034-04-09

AI Technical Summary

Technical Problem

The existing slag stripping board structure leads to low slag stripping efficiency, long slag stripping time, large drop in the temperature of molten iron, and long desulfurization cycle, which affects the production rhythm and product quality of converter steel.

Method used

A slag strip structure including a slag strip lever sleeve, an intermediate baffle and a two-wing baffle are designed. The two-wing baffle and the intermediate baffle are formed in a U-shaped shape to reduce slag escape and improve slag strip efficiency.

Benefits of technology

Effectively shorten the slag removal time, reduce the temperature drop of molten iron, shorten the desulfurization cycle, improve production efficiency, and ensure the optimal cost of steel billets and the production of high-quality steel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of molten iron pretreatment, and relates to a slag stripping plate for quickly achieving molten iron slag stripping, comprising a slag stripping rod sleeve, and an intermediate baffle installed below the slag stripping rod sleeve, and two wing baffles are respectively arranged on both sides of the intermediate baffle; the two wing baffles and the intermediate baffle form a U shape. The utility model adds two wing baffles 3 at both ends of the lower part of the existing "I"-shaped slag stripping plate, adopts a "U"-shaped slag stripping plate, effectively prevents the escape of slag at both ends of the slag stripping plate during the slag stripping process, strips more slag at one time, shortens the slag stripping time, reduces the temperature drop of molten iron, effectively shortens the desulfurization cycle, and improves production efficiency.
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Description

Technical Field

[0001] The utility model belongs to the field of molten iron pretreatment and relates to a slag stripping plate for quickly stripping molten iron. Background Art

[0002] The slag removal plate used in the slag removal machine in the desulfurization area is a straight "I" type. When removing slag, the slag must escape from both ends of the slag removal plate. The slag removal efficiency is low. The slag removal process takes about 4-5 minutes each time. The temperature of the molten iron drops greatly and the desulfurization cycle of the molten iron is long, which seriously restricts the supply of desulfurized molten iron and affects the production rhythm and product quality of converter steel varieties. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a slag removal plate for quickly removing molten iron slag, optimize the slag removal plate structure, reduce the slag removal process time, and improve the slag removal efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slag stripping plate for quickly stripping molten iron comprises a slag stripping rod sleeve and an intermediate baffle installed below the slag stripping rod sleeve, wherein two wing baffles are respectively arranged on both sides of the intermediate baffle; the two wing baffles and the intermediate baffle form a U shape.

[0005] Optionally, the two wing baffles and the middle baffle are structures formed integrally of steel plates.

[0006] Optionally, the two wing baffles are 150-200mm high and 150mm wide.

[0007] Optionally, a slag removal baffle reinforcing rib is further provided between the slag removal rod sleeve and the middle baffle.

[0008] The beneficial effects of the utility model are:

[0009] 1. Improve slag removal efficiency, reduce slag removal time, shorten the molten iron desulfurization cycle, and match it with the converter cycle;

[0010] 2. Reduce the temperature drop of molten iron, achieve the optimal iron-steel ratio, and obtain the best cost of steel billets;

[0011] 3. The amount of slag in molten iron is reduced, and the amount of sulfur reversion is less, which provides a guarantee for the converter to smelt low-sulfur high-quality steel varieties.

[0012] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0014] Figure 1 This is a front view of a slag removal plate for quickly removing molten iron slag according to the utility model;

[0015] Figure 2 This is a left view of a slag removal plate for quickly removing molten iron slag according to the utility model;

[0016] Figure 3 The utility model is a top view of a slag removal plate for quickly removing molten iron slag.

[0017] Figure numerals: slag removal rod sleeve 1, slag removal baffle reinforcement rib 2, two-wing baffles 3. DETAILED DESCRIPTION

[0018] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0019] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0020] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] The two wing baffles are arc plates and form a U shape with the middle baffle

[0022] See also Figure 1 to Figure 3 , is a slag stripping plate for quickly stripping molten iron, comprising a slag stripping rod sleeve 1, and an intermediate baffle installed below the slag stripping rod sleeve 1, and two wing baffles 3 are respectively arranged on both sides of the intermediate baffle; the two wing baffles 3 are arc plates and form a U shape with the intermediate baffle, the two wing baffles 3 and the intermediate baffle are integrally formed of steel plates and are directly bent, which reduces the problem of welding shedding under high-temperature slag stripping conditions, and is convenient for cleaning sticky slag, thereby improving the service life of the slag stripping plate. A small two-wing structure is adopted, and the two wing baffles 3 have a height of 150-200mm and a width of 150mm, which will not increase the weight of the slag stripping plate too much, thereby affecting the use cost of the slag stripping plate, and a slag stripping baffle reinforcing rib 2 is also arranged between the slag stripping rod sleeve 1 and the intermediate baffle.

[0023] The utility model adds two wing baffles 3 at the two ends of the lower part of the existing "I"-shaped straight slag scraping plate, and adopts a "U"-shaped slag scraping plate, which effectively prevents the escape of slag at the two ends of the slag scraping plate during the slag scraping process, removes more slag at one time, shortens the slag scraping time, reduces the temperature drop of molten iron, effectively shortens the desulfurization cycle, and improves production efficiency.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A slag stripping plate for quickly stripping molten iron, characterized by: It comprises a scraper rod sleeve and a middle baffle installed below the scraper rod sleeve. Two wing baffles are respectively arranged on both sides of the middle baffle. The two wing baffles are arc plates and form a U shape with the middle baffle.

2. The slag-removing plate for rapidly removing molten iron slag according to claim 1, characterized in that: The two wing baffles and the middle baffle are structures formed integrally of steel plates.

3. The slag-removing plate for rapidly removing molten iron slag according to claim 1, characterized in that: The height of the two wing baffles is 150-200mm and the width is 150mm.

4. The slag-removing plate for rapidly removing molten iron slag according to claim 1, characterized in that: A slag removal baffle reinforcing rib is also arranged between the slag removal rod sleeve and the middle baffle.