Efficient anti-blocking oxygen lance nozzle structure for scum furnace

Abstract

The efficient anti-blocking oxygen lance nozzle structure for the scum furnace comprises an oxygen lance tube, an air outlet hole is formed in the middle of the interior of the oxygen lance tube, the right side of the oxygen lance tube is communicated through the air outlet hole, and a motor is fixedly connected to the left side of the oxygen lance tube. And the output end of the motor penetrates to the left side of the inner wall of the air outlet hole and is fixedly connected with a screw rod, the surface of the screw rod is in threaded connection with a thread sleeve, the right side of the thread sleeve is fixedly connected with a dredging block matched with the air outlet hole for use, and air conveying grooves are formed in the positions, located at the top and the bottom of the air outlet hole, in the oxygen lance tube. According to the utility model, the motor is firstly started, the output end of the motor drives the dredging block to move towards the air outlet along the air outlet, the dredging block is used for extruding and pushing scum blocked in the air outlet, the scum is pushed out from the air outlet and falls into the scum furnace again, and at the moment, the oxygen lance nozzle can be dredged, so that the effect of an anti-blocking function is achieved.

Description

Technical Field

[0001] This utility model relates to the field of oxygen lance nozzle technology, specifically a high-efficiency anti-clogging oxygen lance nozzle structure for slag furnaces. Background Technology

[0002] The oxygen lance nozzle of the slag furnace is a core component of metallurgical equipment. As a key component of the oxygen lance, it is responsible for converting high-pressure oxygen into a supersonic jet and injecting it into the molten pool to enhance the oxidation reaction and stir the molten pool. It is usually made of copper and processed by forging or casting. It needs to be used in conjunction with a water cooling system with a three-layer sleeve structure to promote slag formation and dephosphorization reactions.

[0003] In the process of steelmaking in a slag furnace, oxygen lances are needed to blow oxygen into the slag furnace. Traditional oxygen lances have a simple structure. When blowing oxygen, the sparks from the slag inside the furnace will fly around. When the sparks fly to the oxygen lance nozzle, they will stick to the oxygen lance nozzle, causing the oxygen lance nozzle to become blocked and preventing oxygen from being blown.

[0004] Therefore, the oxygen lance needs to be redesigned to have an anti-clogging structure for the oxygen lance nozzle. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a high-efficiency anti-clogging oxygen lance nozzle structure for slag furnaces. This structure has the advantage of an anti-clogging oxygen lance nozzle and solves the problem that traditional oxygen lance structures are simple, and during oxygen blowing, slag sparks in the slag furnace will scatter throughout the furnace. When these sparks reach the oxygen lance nozzle, they will stick to it, causing blockage and preventing oxygen blowing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency anti-clogging oxygen lance nozzle structure for a slag furnace, comprising an oxygen lance tube, an air outlet being provided in the middle of the interior of the oxygen lance tube, the air outlet allowing the right side of the oxygen lance tube to pass through, a motor being fixedly connected to the left side of the oxygen lance tube, the output end of the motor passing through to the left side of the inner wall of the air outlet and being fixedly connected to a screw rod, a threaded sleeve being threaded onto the surface of the screw rod, and a unblocking block cooperating with the air outlet being fixedly connected to the right side of the threaded sleeve;

[0007] The oxygen lance tube has gas delivery grooves inside, at the top and bottom of the gas outlet. The top and bottom left of the oxygen lance tube are fixedly connected to air inlet pipes that communicate with the gas delivery grooves. The inside of the gas delivery grooves communicates with the right side of the gas outlet near the unblocking block.

[0008] A cooling groove is provided inside the oxygen lance tube on the right side, and the cooling groove surrounds the outside of the air outlet. Conveying grooves communicating with the cooling grooves are provided on both the front and rear sides of the oxygen lance tube on the left side. Cooling liquid conveying pipes communicating with the conveying grooves are fixedly connected to both the front and rear sides of the oxygen lance tube on the left side.

[0009] As a preferred embodiment of this utility model, the front and rear sides of the inner wall of the air outlet are provided with sliding grooves, and the front and rear sides of the screw sleeve are fixedly connected with sliders that cooperate with the sliding grooves.

[0010] As a preferred embodiment of this invention, the surface of the motor is covered with a protective shell, and the right side of the protective shell is fixedly connected to the left side of the oxygen lance tube.

[0011] As a preferred embodiment of this invention, the top of the protective shell is provided with heat dissipation holes, which are elongated in shape.

[0012] As a preferred embodiment of this invention, the inner wall of the coolant delivery pipe is provided with an impurity filter screen.

[0013] As a preferred embodiment of this invention, the protective shell is made of aluminum alloy and is cylindrical in shape.

[0014] As a preferred embodiment of this invention, the screw is made of stainless steel.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the motor is first started. The output end of the motor drives the unblocking block to move along the air outlet to the air vent. The unblocking block squeezes and pushes the scum blocking the air outlet, pushing the scum out of the air vent and back into the scum furnace. At this time, the oxygen lance nozzle can be unblocked, thereby achieving the effect of anti-clogging function.

[0017] 2. By setting a sliding groove and a sliding block, this utility model can limit the range of motion of the screw sleeve, making it more convenient for users. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the oxygen lance tube structure of this utility model;

[0019] Figure 2 This is a front sectional view of the oxygen lance tube structure of this utility model;

[0020] Figure 3 This is a top sectional view of the oxygen lance tube structure of this utility model;

[0021] Figure 4 This is a perspective view of the screw sleeve structure of this utility model.

[0022] In the diagram: 1. Oxygen lance tube; 2. Air outlet; 3. Motor; 4. Screw; 5. Screw sleeve; 6. Unblocking block; 7. Gas delivery trough; 8. Air inlet pipe; 9. Cooling trough; 10. Conveying trough; 11. Coolant delivery pipe; 12. Slide; 13. Sliding block; 14. Protective shell; 15. Heat dissipation hole; 16. Impurity filter. 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] like Figures 1 to 4 As shown, the present invention provides a high-efficiency anti-clogging oxygen lance nozzle structure for a slag furnace, including an oxygen lance tube 1. An air outlet 2 is provided in the middle of the interior of the oxygen lance tube 1, and the air outlet 2 allows the right side of the oxygen lance tube 1 to pass through. A motor 3 is fixedly connected to the left side of the oxygen lance tube 1. The output end of the motor 3 passes through to the left side of the inner wall of the air outlet 2 and is fixedly connected to a screw 4. A screw sleeve 5 is threadedly connected to the surface of the screw 4. A clearing block 6 that works with the air outlet 2 is fixedly connected to the right side of the screw sleeve 5.

[0025] An air supply groove 7 is provided inside the oxygen lance tube 1 and at the top and bottom of the air outlet 2. An air inlet pipe 8 that communicates with the air supply groove 7 is fixedly connected to the top and bottom left of the oxygen lance tube 1. The inner side of the air supply groove 7 is connected to the right side of the air outlet 2 near the unblocking block 6.

[0026] A cooling groove 9 is provided on the right side of the inside of the oxygen lance tube 1. The cooling groove 9 surrounds the outside of the air outlet 2. A conveying groove 10 communicating with the cooling groove 9 is provided on both the front and rear sides of the left side of the inside of the oxygen lance tube 1. A coolant conveying pipe 11 communicating with the conveying groove 10 is fixedly connected to both the front and rear sides of the oxygen lance tube 1 on the left side.

[0027] refer to Figure 3 The front and rear sides of the inner wall of the air outlet 2 are provided with sliding grooves 12, and the front and rear sides of the screw sleeve 5 are fixedly connected with sliders 13 that cooperate with the sliding grooves 12.

[0028] As a technical optimization of this utility model, by setting the sliding groove 12 and the slider 13, the range of motion of the screw sleeve 5 can be limited, which facilitates the use of the user.

[0029] refer to Figure 3 A protective shell 14 is fitted onto the surface of the motor 3, and the right side of the protective shell 14 is fixedly connected to the left side of the oxygen lance tube 1.

[0030] As a technical optimization of this utility model, by setting a protective shell 14, the motor 3 can be protected and prevented from being damaged by collision during use.

[0031] refer to Figure 1 The top of the protective shell 14 has a heat dissipation hole 15, which is elongated in shape.

[0032] As a technical optimization of this utility model, by setting heat dissipation holes 15, the motor 3 can be cooled, preventing the motor 3 from being damaged due to overheating.

[0033] refer to Figure 3 The inner wall of the coolant delivery pipe 11 is provided with an impurity filter screen 16.

[0034] As a technical optimization of this utility model, by setting an impurity filter screen 16, impurities in the coolant can be filtered to prevent impurities and foreign objects from entering the cooling tank 9.

[0035] refer to Figure 1 The protective shell 14 is made of aluminum alloy and is cylindrical in shape.

[0036] As a technical optimization of this utility model, by setting the protective shell 14 made of aluminum alloy, the strength of the protective shell 14 can be increased, making the protective shell 14 less prone to damage.

[0037] refer to Figure 2 The screw 4 is made of stainless steel.

[0038] As a technical optimization of this utility model, by setting the screw 4 made of stainless steel, it is possible to prevent the screw 4 from rusting and to prevent the screw 4 from being damaged due to rust.

[0039] The working principle and usage process of this utility model are as follows: When the external oxygen injection equipment detects that the oxygen lance nozzle is blocked, the motor 3 is automatically started through the external control terminal. The output end of the motor 3 drives the screw 4 to rotate. The screw 4 drives the screw sleeve 5 to move along the air outlet 2 towards the air outlet using the thread. The screw sleeve 5 drives the unblocking block 6 to move along the air outlet 2 towards the air outlet. The unblocking block 6 squeezes and pushes the scum blocking the air outlet 2, pushing the scum out of the air outlet and back into the scum furnace. Finally, the output end of the motor 3 rotates in the opposite direction, driving the screw 4 to rotate in the opposite direction. The screw 4 drives the screw sleeve 5 and the unblocking block 6 to reset using the thread. At this time, the oxygen lance nozzle can be unblocked, thus achieving the effect of anti-blocking function.

[0040] In summary, this slag furnace utilizes a high-efficiency anti-clogging oxygen lance nozzle structure. By incorporating an oxygen lance tube 1, an air outlet 2, a motor 3, a screw 4, a screw sleeve 5, a clearing block 6, an air delivery channel 7, an air inlet pipe 8, a cooling channel 9, a conveying channel 10, and a coolant delivery pipe 11, it solves the problem of traditional oxygen lance structures being simple and prone to slagging. During oxygen blowing, slag sparks from the slag furnace scatter throughout the furnace, and when these sparks reach the oxygen lance nozzle, they adhere to it, causing blockage and preventing oxygen blowing.

[0041] 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 process, method, article, or apparatus.

[0042] 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 high-efficiency anti-clogging oxygen lance nozzle structure for a slag furnace, comprising an oxygen lance tube (1), characterized in that: An air outlet (2) is provided in the middle of the interior of the oxygen lance tube (1). The air outlet (2) allows the right side of the oxygen lance tube (1) to pass through. A motor (3) is fixedly connected to the left side of the oxygen lance tube (1). The output end of the motor (3) passes through to the left side of the inner wall of the air outlet (2) and is fixedly connected to a screw (4). A threaded sleeve (5) is threaded onto the surface of the screw (4). A cleaning block (6) that works with the air outlet (2) is fixedly connected to the right side of the threaded sleeve (5). The oxygen lance tube (1) is provided with gas delivery grooves (7) at the top and bottom of the gas outlet (2). The top and bottom left of the oxygen lance tube (1) are fixedly connected with air inlet pipes (8) that communicate with the gas delivery grooves (7). The inner side of the gas delivery grooves (7) is connected to the right side of the gas outlet (2) near the unblocking block (6). A cooling groove (9) is provided on the right side of the inside of the oxygen lance tube (1). The cooling groove (9) surrounds the outside of the air outlet (2). A conveying groove (10) communicating with the cooling groove (9) is provided on both the front and rear sides of the left side of the inside of the oxygen lance tube (1). A coolant conveying pipe (11) communicating with the conveying groove (10) is fixedly connected to both the front and rear sides of the oxygen lance tube (1) on the left side.

2. The high-efficiency anti-clogging oxygen lance nozzle structure for a slag furnace according to claim 1, characterized in that: The front and rear sides of the inner wall of the air outlet (2) are provided with sliding grooves (12), and the front and rear sides of the screw sleeve (5) are fixedly connected with sliders (13) that cooperate with the sliding grooves (12).

3. The high-efficiency anti-clogging oxygen lance nozzle structure for a slag furnace according to claim 1, characterized in that: The surface of the motor (3) is covered with a protective shell (14), and the right side of the protective shell (14) is fixedly connected to the left side of the oxygen lance tube (1).

4. The high-efficiency anti-clogging oxygen lance nozzle structure for a slag furnace according to claim 3, characterized in that: The protective shell (14) has a heat dissipation hole (15) on its top, and the heat dissipation hole (15) is elongated.

5. The high-efficiency anti-clogging oxygen lance nozzle structure for a slag furnace according to claim 1, characterized in that: The inner wall of the coolant delivery pipe (11) is provided with an impurity filter screen (16).

6. The high-efficiency anti-clogging oxygen lance nozzle structure for a slag furnace according to claim 3, characterized in that: The protective shell (14) is made of aluminum alloy and is cylindrical in shape.

7. The high-efficiency anti-clogging oxygen lance nozzle structure for a slag furnace according to claim 1, characterized in that: The screw (4) is made of stainless steel.

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