Oxygen lance device capable of adjusting combustion for blow-in

Abstract

The utility model discloses an adjustable combustion oxygen lance device for blow-in, which comprises a main pipe, a sleeve, a quick coupler, a plugging block and a mounting component, an oxygen connecting pipe is arranged on one side of the main pipe, an oxygen pipe is arranged at one end of the oxygen connecting pipe, the sleeve is sleeved on the outer wall of the main pipe, and an air connecting pipe is arranged on one side of the sleeve. An air pipe is arranged at one end of the air connecting pipe, an air inlet pipe is arranged at one end of the air pipe, the multiple quick couplings are arranged at the ends of the oxygen pipe and the air inlet pipe in a sleeving mode respectively, and the plugging blocks are arranged at one ends of the quick couplings in a sleeving mode. Through the design of the plugging blocks and the mounting assembly, when the device needs to be disassembled and maintained, the plugging blocks are firstly arranged on the quick couplings of the device in a sleeving mode, the positions of the plugging blocks are fixed through the mounting assembly, and the plugging blocks are blocked by the plugging blocks, so that dust cannot enter the device; therefore, the situation that use is affected due to dust gathering in the subsequent use process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to blast furnace technical field especially relates to a kind of adjustable combustion oxygen lance device for blowing in. BACKGROUND

[0002] In the production process of blast furnace ironmaking, when new furnace is blown in, furnace hearth freezes or blast furnace is long-term wind, the furnace hearth heat is seriously insufficient to become the limiting link of blast furnace air supply recovery;To realize the rapid heating of furnace hearth and the front end area of iron mouth, improve the physical heat of furnace hearth slag iron, discharge slag iron as soon as possible, and greatly reduce the labor intensity in front of furnace;Usually, coke is inserted into oxygen lance to burn before air supply for blowing in, so as to achieve the effect of rapidly preheating furnace hearth.

[0003] And when the oxygen lance needs to be maintained, the oxygen lance needs to be removed from the required position, and at this time, the various connecting heads of the oxygen lance will be directly exposed to the outside, and dust will enter the inside of the oxygen lance from the position of the connecting head with the blowing of the wind, thereby affecting the subsequent use of the oxygen lance, therefore, the present scheme proposes a kind of adjustable combustion oxygen lance device for blowing in, to solve the above problems. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of adjustable combustion oxygen lance device for blowing in to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of adjustable combustion oxygen lance device for blowing in, comprising:

[0006] Main pipe, the side of the main pipe is provided with oxygen connection pipe, and the one end of the oxygen connection pipe is provided with oxygen pipe;

[0007] Sleeve, the sleeve is sleeved on the outer wall of main pipe, and the side of the sleeve is provided with air connection pipe, and the one end of the air connection pipe is provided with air pipe, and the one end of the air pipe is provided with inlet pipe;

[0008] Quick coupler, the plurality of quick couplers are respectively sleeved on the end of oxygen pipe and inlet pipe;

[0009] Plugging block, the one end of the plugging block is sleeved in quick coupler;

[0010] Mounting assembly, the mounting assembly is arranged at the side of plugging block, and the mounting assembly is used to limit the moving distance of plugging block.

[0011] Preferably, the side opposite to the oxygen pipe and air pipe of the oxygen pipe is provided with connecting pipe, and the middle part of the oxygen pipe, air pipe and connecting pipe is provided with control valve.

[0012] Preferably, the oxygen pipe and the air pipe are provided with pressure gauges at the middle part, and the main pipe and the sleeve pipe are provided with electric thermocouples at the middle part.

[0013] Preferably, the sleeve pipe is fixedly connected with an end cover at one side, and the main pipe is inserted into the end cover, and the main pipe, the sleeve pipe and the end cover are all provided with air holes.

[0014] Preferably, the mounting assembly comprises a plurality of connecting rods fixedly connected to the blocking block at one side, and the opposite side of the connecting rods is provided with a fixing sleeve, the side of the fixing sleeve close to the connecting rods is fixedly connected with a fixing column, and the middle part of the connecting rods is provided with a connecting hole, and the fixing column is inserted into the connecting hole.

[0015] Preferably, the mounting assembly comprises a plurality of connecting rods fixedly connected to the blocking block at one side, and the opposite side of the connecting rods is provided with a fixing sleeve, the side of the fixing sleeve close to the connecting rods is fixedly connected with a fixing column, and the middle part of the connecting rods is provided with a connecting hole, and the fixing column is inserted into the connecting hole.

[0016] Preferably, the middle part of the fixing column is provided with a threaded hole, and a threaded rod is screwed into the threaded hole, and one end of the threaded rod is fixedly connected with a cap.

[0017] The technical effects and advantages of the present application are as follows:

[0018] When the device needs to be disassembled and maintained, the blocking block is sleeved on each quick connector of the device, and the position of the blocking block is fixed by the mounting assembly, so that dust cannot enter the interior of the device, thereby avoiding the influence of dust accumulation on the use of the device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the present application.

[0020] Figure 2 It is a side structure schematic diagram of the present application.

[0021] Figure 3 It is a bottom view schematic diagram of the present application.

[0022] Figure 4 It is a top view schematic diagram of the mounting assembly connection of the present application.

[0023] In the diagram: 1. Main pipe; 2. Sleeve; 3. Observation port; 4. Oxygen pipe; 5. Air pipe; 6. Inlet pipe; 7. Quick-connect coupling; 8. Sealing block; 9. Mounting assembly; 901. Fixing sleeve; 902. Rotating hole; 903. Connecting hole; 904. Fixing post; 905. Torque cap; 906. Threaded rod; 907. Limiting block; 908. Limiting groove; 909. Connecting rod; 10. Pressure gauge; 11. Oxygen connection pipe; 12. Air connection pipe; 13. Thermocouple; 14. End cap; 15. Connecting pipe; 16. Control valve. Detailed Implementation

[0024] 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.

[0025] This utility model provides, for example Figures 1-4 Shown:

[0026] Example 1;

[0027] An adjustable combustion oxygen lance device for furnace start-up, comprising:

[0028] The main pipe 1 has an oxygen connector 11 on one side, and an oxygen pipe 4 is installed at one end of the oxygen connector 11.

[0029] Sleeve 2 is sleeved on the outer wall of main pipe 1. An air connector 12 is provided on one side of sleeve 2. An air pipe 5 is provided at one end of air connector 12. An air inlet pipe 6 is provided at one end of air pipe 5.

[0030] Quick-connector 7, multiple quick-connectors 7 are respectively fitted onto the ends of oxygen tube 4 and air inlet tube 6;

[0031] The sealing block 8 is fitted onto one end of the quick-connect coupling 7;

[0032] Mounting component 9 is located on one side of the sealing block 8 and is used to limit the movement distance of the sealing block 8.

[0033] It should be noted that alumina, water glass, or polytetrafluoroethylene film should be used as filler at the threaded connections on the device. Hemp fibers coated with lead oil or materials containing grease are strictly prohibited. All welded parts should be fully welded, and the weld height should not be less than the thickness of the thinner part among the welded components.

[0034] Specifically, a connecting pipe 15 is provided on the side of oxygen pipe 4 opposite to air pipe 5, and a control valve 16 is provided in the middle of oxygen pipe 4, air pipe 5 and connecting pipe 15.

[0035] It should be noted that the connecting pipe 15 is used to connect the oxygen pipe 4 and the air pipe 5, so that oxygen and air can enter the air pipe 5 and the oxygen pipe 4 respectively through the connecting pipe 15; the control valve 16 is an existing ball valve, used to control the flow of gas in the pipeline; after installation, the control valve 16 on the connecting pipe 15 is opened and all pipelines are cleaned by compressed air.

[0036] Specifically, pressure gauges 10 are installed in the middle of oxygen pipe 4 and air pipe 5, thermocouples 13 are installed in the middle of main pipe 1 and sleeve 2, and an observation port 3 is installed at one end of main pipe 1.

[0037] It should be noted that the observation port 3 on the main pipe 1 is for real-time monitoring of the combustion status inside the furnace and the working status of the oxygen lance nozzles; the pressure gauge 10 on the oxygen pipe 4 and air pipe 5 is mainly for real-time monitoring of gas pressure changes in the pipeline, ensuring that the gas supply pressure is stable within a safe range, and preventing equipment damage or process abnormalities due to excessively high or low pressure; the pressure gauge 10 converts the gas pressure into a readable value through a mechanical or electronic sensor, and its working principle is based on the deformation of an elastic element: when gas pressure acts on the elastic element, the element deforms and drives the pointer to deflect through a transmission mechanism, ultimately displaying the pressure value on the dial; the thermocouple 13 connection point is drilled on-site according to the thermocouple size, and the thermocouple 13 is installed. The thermocouple 13 is an existing... The temperature measurement device uses the Seebeck effect (thermoelectric potential generated by the temperature difference between the measuring and reference ends of two different metal conductors) to convert the temperature signal into an electrical signal for measurement. The thermocouple 13 installed on the oxygen lance body monitors the combustion status in the hearth in real time. Overburning or insufficient combustion can be adjusted by regulating the oxygen and air flow rates. This allows for rapid heating of the hearth by burning coke without damaging the refractory material in the blast furnace hearth area. It can also promptly detect and address situations where the oxygen lance pipe is stuck with slag and iron, resulting in poor air intake or blockage, thus preventing the oxygen lance from overheating and burning out. In some cases, the oxygen lance may even burn out carbon bricks, refractory material in the taphole area, or cooling walls during use, improving the safety of oxygen lance use during blast furnace start-up and accelerating the start-up recovery process.

[0038] Specifically, an end cap 14 is fixedly connected to one side of the sleeve 2, and the main pipe 1 is inserted into the inside of the end cap 14. Ventilation holes are provided on one side of the main pipe 1, the sleeve 2, and the end cap 14.

[0039] Example 2:

[0040] Mounting component 9 is applied to the oxygen lance device in Example 1;

[0041] Specifically, the installation component 9 includes multiple connecting rods 909 fixedly connected to one side of the sealing block 8. A fixing sleeve 901 is provided on the opposite side of the multiple connecting rods 909. A fixing post 904 is fixedly connected to the side of the fixing sleeve 901 near the connecting rod 909. A connecting hole 903 is opened in the middle of the connecting rod 909. The fixing post 904 is inserted into the interior of the connecting hole 903.

[0042] It should be noted that the cross-section of the fixed sleeve 901 is annular, allowing the fixed sleeve 901 to be fitted onto the pipe, and the position of the fixed sleeve 901 is fixed by welding; there are two connecting rods 909, both of which are fixedly connected to the sealing block 8. The connecting hole 903 on the connecting rod 909 is adapted to the fixed post 904, allowing the connecting rod 909 to slide on the fixed post 904 through the connecting hole 903, and to drive the sealing block 8 to move through the connecting rod 909, while the fixed post 904 limits the movement distance of the connecting rod 909.

[0043] Specifically, a limiting groove 908 is provided on the inner wall of one side of the connecting hole 903, a limiting block 907 is fixedly connected to one side of the fixing post 904, the limiting block 907 is inserted into the inside of the limiting groove 908, a rotating hole 902 is provided on the inner wall of the other side of the connecting hole 903, a threaded hole is provided in the middle of the fixing post 904, a threaded rod 906 is threadedly connected inside the threaded hole, and a torsion cap 905 is fixedly connected to one end of the threaded rod 906.

[0044] It should be noted that the limiting groove 908 is adapted to the limiting block 907, allowing the limiting block 907 to be inserted into the limiting groove 908. The limiting block 907 prevents the connecting rod 909 from rotating in the middle of the fixed post 904. When the limiting block 907 moves into the rotating hole 902, the connecting rod 909 can rotate on the fixed post 904. When the position of the connecting rod 909 needs to be fixed, the torsion cap 905 is turned, causing the threaded rod 906 to rotate inside the threaded hole and move on the fixed post 904. The threaded rod 906 also causes the torsion cap 905 to move towards one side of the fixed sleeve 901. The pressure between the torsion cap 905 and the fixed sleeve 901 fixes the position of the connecting rod 909.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable combustion oxygen lance device for furnace start-up, characterized in that, include: The main pipe (1) is provided with an oxygen connector (11) on one side, and an oxygen pipe (4) is provided at one end of the oxygen connector (11). A sleeve (2) is fitted on the outer wall of the main pipe (1). An air connector (12) is provided on one side of the sleeve (2). An air pipe (5) is provided at one end of the air connector (12). An air inlet pipe (6) is provided at one end of the air pipe (5). Quick-connect couplings (7), a plurality of the quick-connect couplings (7) are respectively fitted onto the ends of the oxygen tube (4) and the air inlet tube (6); A sealing block (8) is sleeved on one end of a quick-connect connector (7); An installation component (9) is disposed on one side of the sealing block (8) and is used to limit the movement distance of the sealing block (8).

2. The adjustable combustion oxygen lance device for furnace start-up according to claim 1, characterized in that, A connecting pipe (15) is provided on the side opposite to the air pipe (5) of the oxygen pipe (4), and a control valve (16) is provided in the middle of the oxygen pipe (4), the air pipe (5) and the connecting pipe (15).

3. The adjustable combustion oxygen lance device for furnace start-up according to claim 1, characterized in that, Pressure gauges (10) are provided in the middle of both the oxygen pipe (4) and the air pipe (5), thermocouples (13) are provided in the middle of both the main pipe (1) and the sleeve (2), and an observation port (3) is provided at one end of the main pipe (1).

4. The adjustable combustion oxygen lance device for furnace start-up according to claim 1, characterized in that, An end cap (14) is fixedly connected to one side of the sleeve (2), and the main tube (1) is inserted into the inside of the end cap (14). Ventilation holes are provided on one side of the main tube (1), the sleeve (2) and the end cap (14).

5. The adjustable combustion oxygen lance device for furnace start-up according to claim 1, characterized in that, The installation assembly (9) includes a plurality of connecting rods (909) fixedly connected to one side of the sealing block (8). A fixing sleeve (901) is provided on the opposite side of the plurality of connecting rods (909). A fixing post (904) is fixedly connected to the side of the fixing sleeve (901) near the connecting rod (909). A connecting hole (903) is provided in the middle of the connecting rod (909). The fixing post (904) is inserted into the interior of the connecting hole (903).

6. The adjustable combustion oxygen lance device for furnace start-up according to claim 5, characterized in that, A limiting groove (908) is provided on the inner wall of one side of the connecting hole (903), and a limiting block (907) is fixedly connected to one side of the fixing column (904). The limiting block (907) is inserted into the inside of the limiting groove (908). A rotating hole (902) is provided on the inner wall of the other side of the connecting hole (903).

7. The adjustable combustion oxygen lance device for furnace start-up according to claim 6, characterized in that, The fixed column (904) has a threaded hole in the middle, and a threaded rod (906) is threaded through the inside of the threaded hole. A torsion cap (905) is fixedly connected to one end of the threaded rod (906).

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