A continuous casting billet processing device for high chromium seamless pipe production

Abstract

The utility model discloses a continuous casting billet processing device for high chromium seamless pipe production relates to metal processing technical field. Including: frame component, the inner wall sliding joint of frame component has and removes assembly, the outer wall fixed connection of frame component has and blows gas subassembly, the removal assembly includes the rotating ring, the outer wall fixed connection of rotating ring both sides has the earring, this processing device is through the steel wire brush annular array arrangement in the rotating ring inner wall of removal assembly, can all -round surface contact with continuous casting billet, carries out the thorough cleaning to the scale, scab and tiny crack etc. Defect of high chromium steel continuous casting billet surface, compared with traditional partial cleaning mode, this annular cleaning structure improves the uniformity of cleaning, ensures the quality consistency of the whole circumference surface of continuous casting billet, and this processing device reaches the purpose of continuous casting billet processing device for high chromium seamless pipe production.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, specifically to a continuous casting billet processing device for the production of high-chromium seamless tubes. Background Technology

[0002] In the production process of high-chromium seamless steel tubes, the surface quality of the continuously cast billet, as a key raw material before rolling, has a decisive impact on the performance of the final product. High-chromium steel, containing a high proportion of chromium, possesses excellent corrosion resistance, wear resistance, and high-temperature strength, and is widely used in high-end fields such as petroleum, chemical, and power industries. However, during the continuous casting process, the surface of the high-chromium steel continuously cast billet is easily affected by factors such as steel composition, cooling rate, and crystallization conditions, leading to defects such as oxide scale, scale, and cracks. If these defects are not effectively treated before subsequent processing, they will directly cause problems such as folding, cracking, and uneven wall thickness in the rolled high-chromium seamless steel tubes. In severe cases, it can even cause the entire batch of products to be scrapped, significantly increasing production costs.

[0003] Currently, the industry mostly uses partial cleaning or manual cleaning methods to clean the surface of continuously cast billets. Partial cleaning devices usually treat the surface of continuously cast billets through a grinding mechanism in a fixed direction. Due to structural limitations, it is difficult to cover the entire circumference of the continuously cast billet, resulting in blind spots in cleaning. This leads to situations where some areas are over-cleaned while other areas are under-cleaned, resulting in poor surface uniformity of the continuously cast billet and failing to meet the high precision requirements of high-chromium seamless tubes for billets. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a continuous casting billet processing device for the production of high-chromium seamless tubes. It solves the problem that traditional structures are limited by their structure and cannot cover the entire circumference of the continuous casting billet, resulting in blind spots in cleaning and over-cleaning in some areas while other areas are under-cleaned.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a continuous casting billet processing device for the production of high-chromium seamless tubes, comprising: a frame assembly, a cleaning assembly slidably connected to the inner wall of the frame assembly, and an air blowing assembly fixedly connected to the outer wall of the frame assembly; the cleaning assembly includes a rotating ring, ear rings fixedly connected to the outer walls on both sides of the rotating ring, gears fixedly connected to the outer wall of the rotating ring, and wire brushes fixedly connected to the inner wall of the rotating ring, wherein the wire brushes are arranged in a circular array along the central axis of the rotating ring, and the wire brushes are made of a high wear-resistant alloy material.

[0008] Preferably, the frame assembly includes a protective shell, with a support foot fixedly connected to the outer wall of the bottom of the protective shell, a stepper motor fixedly connected to the top of the protective shell via a bracket, and the outer wall of the bracket being fixedly connected to the outer wall of the stepper motor. Support seats are fixedly connected to the outer walls of both sides of the protective shell via side shells, and the outer walls of the side shells are fixedly connected to the inner wall of the protective shell.

[0009] Preferably, the outer wall of the side shell is fixedly connected to the outer wall of the support base, and the inner wall of the side shell is slidably connected to the outer wall of the earring.

[0010] Preferably, the drive teeth at the output end of the stepper motor mesh with the outer wall of the gear, and the outer wall of the side shell is slidably connected to the outer wall of the rotating ring.

[0011] Preferably, the air blowing assembly includes an air blowing shell, the outer wall of which is fixedly connected to a connecting column, and the connecting column is arranged in a circular array along the central axis of the air blowing shell. An air inlet pipe is fixedly connected to the inner wall of the top of the air blowing shell, and a side air hole is opened in the wall of the air blowing shell, and the side air hole is arranged in a circular array along the central axis of the air blowing shell.

[0012] Preferably, the side of the connecting column away from the air blowing shell is fixedly connected to the outer wall of the side shell, and the bottom of the air blowing shell is fixedly connected to a support leg.

[0013] (III) Beneficial Effects

[0014] This utility model provides a continuous casting billet processing device for the production of high-chromium seamless tubes. It has the following beneficial effects:

[0015] (I) The continuous casting billet processing device for the production of high-chromium seamless tubes uses a ring-shaped array of steel wire brushes arranged on the inner wall of the rotating ring in the cleaning component. This allows for all-round contact with the surface of the continuous casting billet, thoroughly cleaning defects such as oxide scale, scale, and fine cracks on the surface of the high-chromium steel continuous casting billet. Compared with the traditional local cleaning method, this ring-shaped cleaning structure improves the uniformity of cleaning, ensures the consistent quality of the entire circumference surface of the continuous casting billet, provides high-quality billet for the subsequent rolling of high-chromium seamless tubes, and reduces the scrap rate of finished tubes caused by defects on the billet surface.

[0016] (II) The continuous casting billet processing device for the production of high-chromium seamless tubes is equipped with an air blowing component. The air is sprayed out through the side air holes arranged in a ring array to form an airflow barrier around the continuous casting billet. This can promptly blow away the oxide scale, dust and other impurities cleaned by the cleaning component from the surface of the continuous casting billet. This design avoids the secondary adhesion of impurities to the surface of the continuous casting billet, ensures the cleanliness of the surface of the continuous casting billet after cleaning, reduces the defects caused by impurity embedding in the subsequent rolling process, and improves the finished quality of high-chromium seamless tubes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the frame component of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the cleaning component of this utility model;

[0021] Figure 5 This is a schematic diagram of the air blowing assembly of this utility model.

[0022] In the diagram: 1. Frame assembly; 2. Cleaning assembly; 3. Air blowing assembly; 11. Support foot; 12. Protective shell; 13. Side shell; 14. Support base; 15. Stepper motor; 21. Rotating ring; 22. Earring; 23. Gear; 24. Wire brush; 31. Air blowing shell; 32. Connecting column; 33. Side air hole; 34. Air inlet pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a continuous casting billet processing device for the production of high-chromium seamless tubes, comprising: a frame assembly 1, a cleaning assembly 2 slidably connected to the inner wall of the frame assembly 1, and an air blowing assembly 3 fixedly connected to the outer wall of the frame assembly 1; the cleaning assembly 2 includes a rotating ring 21, ear rings 22 fixedly connected to the outer walls on both sides of the rotating ring 21, a gear 23 fixedly connected to the outer wall of the rotating ring 21, and a wire brush 24 fixedly connected to the inner wall of the rotating ring 21, and the wire brush 24 is arranged in a ring array along the central axis of the rotating ring 21.

[0025] The frame assembly 1 includes a protective shell 12. A support foot 11 is fixedly connected to the outer wall of the bottom of the protective shell 12. A stepper motor 15 is fixedly connected to the top of the protective shell 12 via a bracket. Support seats 14 are fixedly connected to the outer walls on both sides of the protective shell 12 via side shells 13. The outer wall of the side shell 13 is fixedly connected to the inner wall of the protective shell 12. The outer wall of the side shell 13 is fixedly connected to the outer wall of the support seat 14. When the stepper motor 15 is started, the drive teeth drive the gear 23 to rotate, thereby causing the rotating ring 21 to rotate around its own axis. At this time, the wire brush 24 contacts the surface of the continuously cast billet passing through the center of the rotating ring 21. Through mechanical friction, the oxide scale, scabs and other defects on the surface are removed. The inner wall of the side shell 13 is slidably connected to the outer wall of the ear ring 22. The drive teeth at the output end of the stepper motor 15 mesh with the outer wall of the gear 23. The outer wall of the side shell 13 is slidably connected to the outer wall of the rotating ring 21.

[0026] The blowing assembly 3 includes a blowing shell 31. A connecting column 32 is fixedly connected to the outer wall of the blowing shell 31, and the connecting column 32 is arranged in a ring array along the central axis of the blowing shell 31. An air inlet pipe 34 is fixedly connected to the inner wall of the top of the blowing shell 31. Side air holes 33 are opened in the wall of the blowing shell 31, and the side air holes 33 are arranged in a ring array along the central axis of the blowing shell 31. The air inlet pipe 34 is connected to an external air source. After the compressed gas enters the interior of the blowing shell 31 through the air inlet pipe 34, it is ejected through the side air holes 33 arranged in a ring array in the wall. This design of the ring-shaped side air holes 33 can form an airflow barrier surrounding the continuous casting billet, and blow away the oxide scale debris, dust and other impurities generated during cleaning from multiple directions. After the impurities are carried away from the surface of the continuous casting billet by the airflow, they fall under the action of gravity. The side of the connecting column 32 away from the blowing shell 31 is fixedly connected to the outer wall of the side shell 13. A support foot is fixedly connected to the bottom of the blowing shell 31.

[0027] In the production process of high-chromium seamless steel tubes, the surface quality of the continuously cast billet directly affects the precision and performance of the finished product in the subsequent rolling process. During the continuous casting process, high-chromium steel continuously cast billets are prone to defects such as oxide scale, scabs and micro-cracks on their surface. If these defects are not treated in time, they will lead to problems such as folding and cracking during the rolling of seamless steel tubes. To address this, a continuous casting billet processing device for the production of high-chromium seamless steel tubes has emerged. By integrating mechanical cleaning and pneumatic blowing functions, it achieves efficient pretreatment of the surface of the continuously cast billet, laying a high-quality billet foundation for subsequent processing.

[0028] The device consists of three core parts: frame assembly 1, cleaning assembly 2, and air blowing assembly 3. The components are mechanically connected and power transmitted to form a coordinated operation system. Frame assembly 1 provides stable support and power output for the entire device, cleaning assembly 2 is responsible for targeted cleaning of the surface of the continuous casting billet, and air blowing assembly 3 removes the impurities generated during cleaning by blowing air. The three work closely together to complete the automated pretreatment process of the surface of the continuous casting billet.

[0029] The frame assembly 1 is the basic support and power hub of the device. Its structural design directly determines the stability and reliability of the cleaning process. The protective shell 12, as the main structure of the frame assembly 1, is fixed to the production line through the support feet 11 at the bottom, forming a stable working platform. The protective shell 12 is connected to the support base 14 through the side shells 13 on both sides. The side shells 13 not only play a connecting role, but also form the running track of the cleaning assembly 2, providing guidance for the sliding of the rotating ring 21. The stepper motor 15, which is fixed to the top of the protective shell 12 through the bracket, is the power source of the entire device. The drive teeth at its output end mesh with the gears 23 on the outer wall of the rotating ring 21 in the cleaning assembly 2, providing stable rotational power for the rotating ring 21.

[0030] The cleaning component 2 is the core actuator for cleaning the surface of the continuously cast billet. Its structural design fully considers the surface characteristics of the high-chromium steel continuously cast billet. The rotating ring 21 serves as the main body of the cleaning component 2. The wire brushes 24 fixed on its inner wall are arranged in a circular array along the central axis. This layout ensures that the surface of the continuously cast billet in the circumferential direction can be cleaned evenly. The lugs 22 on both sides of the outer wall of the rotating ring 21 are embedded in the sliding grooves on the inner wall of the side shell 13, which not only limit the rotation of the rotating ring 21, but also ensure its stable sliding on the outer wall of the side shell 13. When the stepper motor 15 is started, the drive teeth drive the gears. 23 rotates, causing the rotating ring 21 to rotate around its own axis. At this time, the wire brush 24 comes into contact with the surface of the continuously cast billet passing through the center of the rotating ring 21. Through mechanical friction, defects such as oxide scale and scale on the surface are removed. Due to the high hardness of high chromium steel, the wire brush 24 is made of high wear-resistant alloy material, which can not only ensure the cleaning effect, but also adapt to the needs of long-term high-intensity operation. At the same time, the adjustable speed characteristics of the stepper motor 15 allow the cleaning force of the wire brush 24 to be flexibly adjusted according to the degree of defects on the surface of the continuously cast billet, avoiding over-cleaning that leads to billet loss or under-cleaning that leaves potential defects.

[0031] The function of the air blowing assembly 3 is to remove impurities generated during the cleaning process in a timely manner, preventing impurities from adhering to the surface of the continuous casting billet or accumulating inside the device and affecting subsequent operations. The air blowing shell 31 is fixed to the outer wall of the side shell 13 by the connecting column 32, and its position corresponds to the cleaning area of ​​the rotating ring 21, ensuring that the airflow can act on the surface of the cleaned continuous casting billet. The air inlet pipe 34 is connected to an external air source. After the compressed gas enters the interior of the air blowing shell 31 through the air inlet pipe 34, it is ejected through the side air holes 33 arranged in a ring array in the wall. This design of the ring-shaped side air holes 33 can form an airflow barrier around the continuous casting billet, blowing away impurities such as oxide scale debris and dust generated during cleaning from multiple directions. After the impurities are carried away from the surface of the continuous casting billet by the airflow, they fall under the action of gravity. The airflow pressure of the air blowing assembly 3 can be adjusted according to the amount of impurities generated during cleaning. When there are many defects on the surface of the continuous casting billet and the amount of impurities generated during cleaning is large, the airflow pressure is increased to ensure that the impurities are completely removed; when the surface is relatively clean, the pressure is appropriately reduced to reduce energy consumption.

[0032] In actual operation, firstly, the high-chromium steel continuous casting billet is fed into the device through the conveying device and passes through the center of the rotating ring 21 in the horizontal direction. At this time, the stepper motor 15 starts and drives the rotating ring 21 to rotate. The wire brush 24 contacts the surface of the continuous casting billet and begins the cleaning operation. During the cleaning process, the air blowing component 3 starts simultaneously, and the airflow ejected from the side air hole 33 continuously blows the cleaning area, taking away the impurities cleaned by the wire brush 24 in time. As the continuous casting billet is continuously conveyed, the entire circumferential surface is successively cleaned by the wire brush 24 and blown by the airflow, completing the comprehensive surface pretreatment.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous casting billet processing apparatus for the production of high-chromium seamless tubes, characterized in that, include: A frame assembly (1) is provided, wherein a cleaning assembly (2) is slidably connected to the inner wall of the frame assembly (1), and an air blowing assembly (3) is fixedly connected to the outer wall of the frame assembly (1). The cleaning component (2) includes a rotating ring (21), earrings (22) are fixedly connected to the outer walls on both sides of the rotating ring (21), gears (23) are fixedly connected to the outer walls of the rotating ring (21), and wire brushes (24) are fixedly connected to the inner walls of the rotating ring (21), and the wire brushes (24) are arranged in a circular array along the central axis of the rotating ring (21).

2. The continuous casting billet processing device for high-chromium seamless tube production according to claim 1, characterized in that: The frame assembly (1) includes a protective shell (12), with a support foot (11) fixedly connected to the outer wall at the bottom of the protective shell (12), a stepper motor (15) fixedly connected to the top of the protective shell (12) via a bracket, and a support base (14) fixedly connected to the outer walls on both sides of the protective shell (12) via a side shell (13), and the outer wall of the side shell (13) is fixedly connected to the inner wall of the protective shell (12).

3. The continuous casting billet processing device for the production of high-chromium seamless tubes according to claim 2, characterized in that: The outer wall of the side shell (13) is fixedly connected to the outer wall of the support base (14), and the inner wall of the side shell (13) is slidably connected to the outer wall of the earring (22).

4. The continuous casting billet processing device for high-chromium seamless tube production according to claim 2, characterized in that: The drive teeth at the output end of the stepper motor (15) mesh with the outer wall of the gear (23), and the outer wall of the side shell (13) is slidably connected to the outer wall of the rotating ring (21).

5. The continuous casting billet processing device for high-chromium seamless tube production according to claim 1, characterized in that: The air blowing assembly (3) includes an air blowing shell (31), the outer wall of which is fixedly connected to a connecting column (32), and the connecting column (32) is arranged in a ring array along the central axis of the air blowing shell (31). An air inlet pipe (34) is fixedly connected to the inner wall of the top of the air blowing shell (31). A side air hole (33) is opened in the wall of the air blowing shell (31), and the side air hole (33) is arranged in a ring array along the central axis of the air blowing shell (31).

6. The continuous casting billet processing device for high-chromium seamless tube production according to claim 5, characterized in that: The connecting column (32) is fixedly connected to the outer wall of the side shell (13) on the side away from the air blowing shell (31), and the bottom of the air blowing shell (31) is fixedly connected with a support foot.

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