Ladle nozzle cleaning device

Abstract

The utility model discloses a ladle nozzle cleaning device, and relates to the technical field of metallurgical ladle hot repair operation. Comprising an air inlet pipe and an oxygen lance sleeve, the air inlet pipe is connected with a metal hose through a ball valve and an anti-backfire device, the metal hose is connected with the oxygen lance sleeve, an oxygen blowing pipe is arranged in the oxygen lance sleeve, a double-thread bolt is arranged between the metal hose and the oxygen lance sleeve, and one end of the double-thread bolt is connected with the metal hose through a screw thread. The other end of the double-thread bolt is installed in the oxygen lance sleeve in a matched mode through a screw thread, a sealing ring is arranged at the end, connected with the oxygen blowing pipe, of the oxygen lance sleeve, the sealing ring is arranged in the oxygen lance sleeve, the oxygen blowing pipe penetrates through the sealing ring, and a fastening nut is further arranged at the end, connected with the oxygen blowing pipe, of the oxygen lance sleeve and used for locking the sealing ring. The problems that an existing ladle nozzle cleaning device is not tight in sealing, and an oxygen lance is not firmly fixed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot repair operations of metallurgical ladles, in particular to a ladle nozzle cleaning device. Background Art

[0002] In the process of producing various steel products in steel plants, continuous steel casting is one of the methods for solidifying molten steel. Since continuous steel casting is a continuous production, the long shroud of the ladle is also used repeatedly. During use, the shroud wrist is easily stuck with cold steel and residue. If it is not cleaned, the long shroud of the ladle and the ladle outlet will be loosely installed during use. When molten steel passes through the bowl, steel will burst out at the junction of the bowl and the large ladle outlet. In the mildest case, it will protect the pouring from being in place. In the worst case, the sliding mechanism of the ladle will be stuck, causing the ladle mechanism to fail to operate, resulting in production accidents, and causing molten steel to aspirate and pollute the molten steel.

[0003] At present, the ladle nozzle cleaning device has the following problems: during the oxygen burning cleaning operation of the ladle hot repair nozzle, the air inlet pipe is not sealed tightly and the oxygen blowing pipe is not firmly fixed, resulting in insufficient oxygen leakage flow, long oxygen burning time at the nozzle, and a large amount of slag reflux splashing. The oxygen burning operation cannot be carried out efficiently, affecting the timely preparation of the on-site smelting ladle and the on-site production organization rhythm, and the risk of personnel being scalded by slag increases. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a ladle water inlet cleaning device, which is used to solve the problems that the existing ladle water inlet cleaning device is not tightly sealed and the oxygen blowing pipe is not firmly fixed.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A ladle water inlet cleaning device comprises an air inlet pipe and an oxygen gun sleeve, wherein the air inlet pipe is connected to a metal hose through a ball valve and a backfire preventer, the metal hose is connected to the oxygen gun sleeve, an oxygen blowing pipe is arranged in the oxygen gun sleeve, a double-thread bolt is arranged between the metal hose and the oxygen gun sleeve, one end of the double-thread bolt is connected to the metal hose through a thread, and the other end of the double-thread bolt is installed in the oxygen gun sleeve through a thread, a sealing ring is arranged at one end of the oxygen gun sleeve connected to the oxygen blowing pipe, the sealing ring is in the oxygen gun sleeve, and the oxygen blowing pipe passes through the sealing ring, and a fastening nut is also arranged at one end of the oxygen gun sleeve connected to the oxygen blowing pipe for locking the sealing ring.

[0007] One end of a sealing ring is arranged in the oxygen gun sleeve, and a trumpet-shaped chamfer is arranged on the inner wall thereof. The shape of the sealing ring corresponds to the trumpet-shaped port of the oxygen gun sleeve.

[0008] One end of the double-wire bolt in the oxygen gun sleeve has a trumpet-shaped chamfer on its inner wall, and the oxygen blowing pipe is clamped on the trumpet mouth of the double-wire bolt.

[0009] The oxygen gun sleeve is provided with a tightening nut, on which a tightening screw is mounted in cooperation, and the tightening screw passes through the tightening nut and the oxygen gun sleeve and abuts against the outer wall of the oxygen blowing pipe.

[0010] A first tightening handle is installed on the fastening nut.

[0011] A second tightening handle is installed on the tightening screw.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure and can effectively optimize the oxygen sealing of the ladle water nozzle cleaning device and the stability of the operating state of the water nozzle cleaning device; the double-thread bolt provides a guarantee for the connection state of the metal hose and the oxygen gun sleeve to avoid the metal hose and the oxygen gun sleeve being disconnected under high impact conditions; the sealing ring ensures that when oxygen leakage occurs in the oxygen gun sleeve, no safety accident will occur immediately, providing a buffer time for the operating personnel and reducing the risk of safety accidents; the trumpet-shaped design increases the tightness of the seal, while also reducing the vibration during the operation of the oxygen blowing pipe and reducing fatigue loss; the trumpet-shaped design of the double-thread bolt enables the port position of the oxygen blowing pipe to be effectively buffered and reduces wear; tightening the screws to limit the oxygen blowing pipe to avoid the oxygen blowing pipe being disconnected during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Description of reference numerals:

[0015] 1. Air inlet pipe; 2. Oxygen gun sleeve; 3. Ball valve; 4. Backfire preventer; 5. Metal hose; 6. Oxygen blowing pipe; 7. Double-thread bolt; 8. Sealing ring; 9. Fastening nut; 10. Tightening nut; 11. Tightening screw; 12. First tightening handle; 13. Second tightening handle. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0017] A ladle water inlet cleaning device comprises an air inlet pipe 1 and an oxygen gun sleeve 2, wherein the air inlet pipe 1 is connected to a metal hose 5 through a ball valve 3 and a backfire prevention device 4, the metal hose 5 is connected to the oxygen gun sleeve 2, an oxygen blowing pipe 6 is arranged in the oxygen gun sleeve 2, a double-wire bolt 7 is arranged between the metal hose 5 and the oxygen gun sleeve 2, one end of the double-wire bolt 7 is connected to the metal hose 5 through a thread, and the other end of the double-wire bolt 7 is installed in the oxygen gun sleeve 2 through a threaded fit, a sealing ring 8 is arranged at one end of the oxygen gun sleeve 2 connected to the oxygen blowing pipe 6, the sealing ring 8 is in the oxygen gun sleeve 2, and the oxygen blowing pipe 6 passes through the sealing ring 8, and the oxygen gun sleeve 2 is provided with a sealing ring 8. A fastening nut 9 is also provided at one end of the sleeve 2 connected to the oxygen blowing pipe 6, which is used to lock the sealing ring 8. The utility model has a simple structure and can effectively optimize the oxygen sealing of the ladle water nozzle cleaning device and the stability of the operating state of the water nozzle cleaning device. The double-thread bolt 7 provides a guarantee for the connection state of the metal hose 5 and the oxygen gun sleeve 2 to avoid the metal hose 5 and the oxygen gun sleeve 2 from being separated under high impact conditions. The sealing ring 8 ensures that when oxygen leakage occurs in the oxygen gun sleeve 2, a safety accident will not occur immediately, providing a buffer time for the operating personnel and reducing the risk of safety accidents.

[0018] One end of a sealing ring 8 is provided in the oxygen gun sleeve 2, and its inner wall is provided with a trumpet-shaped chamfer. The shape of the sealing ring 8 corresponds to the trumpet-shaped port of the oxygen gun sleeve 2. The trumpet-shaped design increases the tightness of the seal, while also reducing the vibration of the oxygen blowing pipe 6 during operation and reducing fatigue loss.

[0019] The inner wall of one end of the double-thread bolt 7 in the oxygen gun sleeve 2 is provided with a trumpet-shaped chamfer, and the oxygen blowing pipe 6 is clamped on the trumpet mouth of the double-thread bolt 7, so that the port position of the oxygen blowing pipe 6 is effectively buffered and wear is reduced.

[0020] The oxygen gun sleeve 2 is provided with a tightening nut 10, and a tightening screw 11 is installed on the tightening nut 10. The tightening screw 11 passes through the tightening nut 10 and the oxygen gun sleeve 2 and abuts against the outer wall of the oxygen blowing pipe 6. The tightening screw 11 limits the oxygen blowing pipe 6 to prevent the oxygen blowing pipe 6 from being disengaged during operation.

[0021] The fastening nut 9 is provided with a first tightening handle 12 .

[0022] A second tightening handle 13 is mounted on the tightening screw 11 .

[0023] Embodiment 1,

[0024] Step 1: Install the sealing ring 8 into the built-in chamfer at one end of the oxygen gun casing 2;

[0025] Step 2: Pass the oxygen blowing tube 6 through the inner hole of the fastening nut 9 and the inner hole of the sealing ring 8, and clamp one end on the thread bolt;

[0026] Step 3: Use the second tightening handle 13 to make the tightening screw 11 abut against the oxygen blowing pipe 6 to ensure that the oxygen blowing pipe 6 is firmly fixed, and tighten the nut 9 to ensure that the oxygen blowing pipe 6 and the oxygen gun sleeve 2 can be effectively sealed.

[0027] Step 4: The ladle hot repair operator aligns the water inlet cleaning device with the oxygen blowing pipe 6 fixed thereon and inserts it into the water inlet of the ladle to prepare for the oxygen burning cleaning operation.

[0028] Step 5: Another operator cooperating with the hot repair of the ladle operates the ball valve 3 on the nozzle cleaning device to slowly open the oxygen to provide an oxygen source for the hot repair nozzle cleaning personnel, and observes and contacts the dynamics and instructions of the personnel using the nozzle cleaning device to clean the ladle nozzle at any time to ensure that the nozzle cleaning operation is carried out safely and orderly.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ladle nozzle cleaning device, comprising an air inlet pipe (1) and an oxygen lance sleeve (2), wherein the air inlet pipe (1) is connected to a metal hose (5) via a ball valve (3) and a flashback preventer (4), the metal hose (5) is connected to the oxygen lance sleeve (2), and an oxygen blowing pipe (6) is arranged in the oxygen lance sleeve (2), characterized in that: A double-thread bolt (7) is provided between the metal hose (5) and the oxygen gun sleeve (2). One end of the double-thread bolt (7) is connected to the metal hose (5) via a thread. The other end of the double-thread bolt (7) is installed in the oxygen gun sleeve (2) via a thread. A sealing ring (8) is provided in one end of the oxygen gun sleeve (2) connected to the oxygen blowing pipe (6). The oxygen blowing pipe (6) passes through the sealing ring (8). A fastening nut (9) is also provided at one end of the oxygen gun sleeve (2) connected to the oxygen blowing pipe (6) for locking the sealing ring (8).

2. A ladle nozzle cleaning device according to claim 1, characterized in that: One end of a sealing ring (8) is provided in the oxygen lance sleeve (2), and the inner wall thereof is provided with a trumpet-shaped chamfer; the shape of the sealing ring (8) corresponds to the trumpet-shaped port of the oxygen lance sleeve (2).

3. A ladle nozzle cleaning device according to claim 2, characterized in that: The inner wall of one end of the double-thread bolt (7) in the oxygen gun sleeve (2) is provided with a trumpet-shaped chamfer, and the oxygen blowing pipe (6) is clamped on the trumpet mouth of the double-thread bolt (7).

4. A ladle nozzle cleaning device according to claim 3, characterized in that: The oxygen gun sleeve (2) is provided with a tightening nut (10), and a tightening screw (11) is mounted on the tightening nut (10). The tightening screw (11) passes through the tightening nut (10) and the oxygen gun sleeve (2) and abuts against the outer wall of the oxygen blowing pipe (6).

5. A ladle nozzle cleaning device according to claim 4, characterized in that: A first tightening handle (12) is mounted on the tightening nut (9).

6. A ladle nozzle cleaning device according to claim 5, characterized in that: A second tightening handle (13) is mounted on the tightening screw (11).

Images