A shaft furnace ignition lance

Abstract

This utility model discloses a vertical shaft furnace ignition gun, including an ignition gun body, a wind shield fixedly connected to the end of the ignition gun body, the length of the wind shield being one-third of the length of the flame ejected from the ignition gun body, an extension tube installed at the tail end of the ignition gun body via a connecting assembly, a valve fixedly installed at the end of the extension tube, the extension tube being connected to an external acetylene delivery pipe via the valve, and a locking assembly disposed outside the extension tube, used to lock the valve's drive handle. This utility model utilizes the combined use of the ignition gun body, wind shield, extension tube, valve, and locking assembly. The ignition gun body ejects a flame using acetylene and oxygen, and the wind shield further reduces the possibility of flame extinguishing at the end of the ignition gun body. Thus, with the extension tube, the vertical shaft furnace can be directly ignited, and the locking assembly ensures the stability of the valve when it is open.

Description

Technical Field

[0001] This utility model relates to the field of ignition guns, and in particular to a vertical furnace ignition gun. Background Technology

[0002] A vertical shaft furnace is a type of blast furnace used for metal smelting, typically for the production of cast iron, aluminum, and other metals. Its structure is usually vertical, with raw materials and fuels fed into the furnace from the top, while molten metal and slag are discharged from the bottom.

[0003] Because vertical shaft furnaces generate a large amount of heat during operation, external ignition is typically used to prevent damage to the ignition device. This involves wrapping the end of a round steel bar with tarpaulin, lighting it, inserting it into the burner, and then igniting the gas. However, this method is prone to problems due to fluctuations in gas pressure or improper control of the gas ignition valve opening, which can cause the flame at the end of the round steel bar to be extinguished. As a result, gas flows into the combustion chamber, requiring re-purging when re-igniting, and there is a risk of explosion during re-ignition. Therefore, this method has certain drawbacks. Utility Model Content

[0004] The purpose of this invention is to provide a vertical furnace ignition gun to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical furnace ignition gun, comprising:

[0006] An ignition gun body that emits a flame using oxygen and acetylene as fuel sources;

[0007] A wind shield is fixedly connected to the end of the ignition gun body, and the length of the wind shield is one-third of the length of the flame ejected from the ignition gun body.

[0008] An extension tube and a connecting assembly, wherein the extension tube is mounted to the rear end of the ignition gun body via the connecting assembly;

[0009] A valve is fixedly installed at the end of an extension pipe, which is connected to an external acetylene delivery pipe via the valve.

[0010] A locking assembly, disposed outside the extension tube, is used to lock the valve's drive handle.

[0011] Preferably, the connection component includes:

[0012] A threaded sleeve is fixedly sleeved on one end of the outer wall of the extension tube, and the tail end of the ignition gun body is threadedly sleeved with the threaded sleeve.

[0013] A positioning collar is fixedly sleeved on the outside of the ignition gun body, and one side of the positioning collar is in contact with a threaded sleeve.

[0014] Preferably, the locking component includes:

[0015] A connecting collar, which is slidably engaged with the outside of the extension tube;

[0016] A snap-fit ​​connector is fixedly connected to the top of the connecting collar and slidably snap-fitted onto the outside of the valve's drive handle.

[0017] Preferably, the locking component further includes:

[0018] A fixing collar is fixedly sleeved on the outside of the extension pipe, and the fixing collar is located on the side of the connecting collar away from the valve;

[0019] A limiting spring is disposed between the fixed collar and the connecting collar.

[0020] Preferably, the locking component further includes:

[0021] A connecting rod, one end of which is fixedly connected to a connecting collar, the outside of which is slidably inserted into the fixed collar, and a limiting spring slidably sleeved on the outside of the connecting rod;

[0022] A limiting block is fixedly connected to the end of the connecting rod, and the limiting block is located on the side of the fixing collar away from the connecting collar;

[0023] A corrugated sleeve, the ends of which are fixedly connected to a connecting collar and a fixing collar, respectively.

[0024] Preferably, the locking component further includes:

[0025] A limiting strip, which is fixedly connected to the outside of the extension tube;

[0026] A sliding groove is formed on the inner wall of the connecting collar, and the outer wall of the limiting strip is slidably sleeved with the inner cavity of the sliding groove.

[0027] The technical effects and advantages of this utility model are as follows:

[0028] This utility model utilizes the combined use of an ignition gun body, a wind shield, an extension tube, a valve, and a locking component. The ignition gun body sprays flames using acetylene and oxygen, and the wind shield further reduces the chance of flame extinguishing at the end of the ignition gun body. Thus, with the extension tube, the vertical furnace can be directly ignited, and with the locking component, the stability of the valve when it is opened can be ensured. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the internal structure of the corrugated sleeve from the top surface of this utility model;

[0031] Figure 3 This is a schematic diagram of the overall structure of the connecting collar of this utility model.

[0032] In the diagram: 1. Ignition gun body; 2. Windproof cover; 31. Threaded sleeve; 32. Positioning collar; 4. Extension tube; 5. Valve; 6. Locking assembly; 61. Connecting collar; 62. Snap-fit ​​component; 63. Fixing collar; 64. Limiting spring; 65. Connecting rod; 66. Limiting block; 67. Corrugated sleeve; 68. Limiting strip; 69. Slide groove. Detailed Implementation

[0033] 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.

[0034] This utility model provides, for example Figure 1-3 The image shows a vertical furnace ignition gun.

[0035] Example 1: Includes an ignition gun body 1, a wind shield 2, an extension tube 4, a connecting assembly, a valve 5, and a locking assembly 6. The ignition gun body 1 uses oxygen and acetylene as fuel to eject a flame. The ignition gun body 1 is modified from a conventional gas cutting torch, making the flame ejected by the ignition gun body 1 less susceptible to being blown out. The wind shield 2 is fixedly connected to the end of the ignition gun body 1. The length of the wind shield 2 is one-third of the length of the flame ejected by the ignition gun body 1, so the wind shield 2 will not affect the flame ejected by the ignition gun body 1 in igniting the vertical furnace. Moreover, the wind shield 2 can prevent wind from the source of the flame ejected by the ignition gun body 1, further reducing the possibility of the flame being blown out. The extension tube 4 is connected to the connecting assembly... The extension tube 4 is installed at the tail end of the ignition gun body 1. The extension tube 4 can not only deliver acetylene sprayed from the ignition gun body 1, but also be used as a handle. The length of the extension tube 4 and the ignition gun body 1 is two to three meters. The valve 5 is fixedly installed at the end of the extension tube 4. The extension tube 4 is connected to the external acetylene delivery tube through the valve 5. The locking component 6 is set on the outside of the extension tube 4. The locking component 6 is used to lock the drive handle of the valve 5. Under the action of the locking component 6, the handle on the valve 5 can be accidentally touched when the extension tube 4 and the ignition gun body 1 are ignited, which would cause the extension tube 4 to stop acetylene, and thus the ignition gun body 1 to stop spraying flame.

[0036] Furthermore, the connecting assembly includes a threaded sleeve 31 and a positioning collar 32. The threaded sleeve 31 is fixedly sleeved on one end of the outer wall of the extension tube 4. The tail end of the ignition gun body 1 is threadedly sleeved with the threaded sleeve 31, that is, the acetylene inlet channel on the ignition gun body 1 is connected to the extension tube 4. The positioning collar 32 is fixedly sleeved on the outside of the ignition gun body 1. One side of the positioning collar 32 is in contact with the threaded sleeve 31. By rotating the ignition gun body 1, the ignition gun body 1 can be separated from the extension tube 4. The ignition gun body 1 is modified from an ordinary gas cutting gun. The oxygen delivery channel of the ignition gun body 1 is delivered by an external pipeline to avoid backfire explosion. This is existing technology and will not be described in detail here.

[0037] Example 2: Based on Example 1, the locking component 6 includes a connecting collar 61 and a snap-fit ​​component 62. The connecting collar 61 is slidably snapped onto the outside of the extension tube 4, and the snap-fit ​​component 62 is fixedly connected to the top of the connecting collar 61. The snap-fit ​​component 62 is slidably snapped onto the outside of the drive handle on the valve 5. Thus, the snap-fit ​​component 62 is snapped onto the drive handle, which can prevent the drive handle from being accidentally rotated, thereby causing a decrease in the acetylene supply rate, thus ensuring the stability of the acetylene supply when the ignition gun body 1 is ignited.

[0038] Furthermore, the locking assembly 6 also includes a fixing collar 63 and a limiting spring 64. The fixing collar 63 is fixedly sleeved on the outside of the extension tube 4. The fixing collar 63 is located on the side of the connecting collar 61 away from the valve 5. The limiting spring 64 is disposed between the fixing collar 63 and the connecting collar 61. The limiting spring 64 can provide an elastic compressive force to the connecting collar 61, thereby ensuring the stability of the connecting collar 61 driving the snap-fit ​​62 to snap onto the drive handle. After the ignition gun body 1 completes the ignition of the vertical furnace, the connecting collar 61 is first moved toward the fixing collar 63 to separate the snap-fit ​​62 from the drive handle. The valve 5 is then closed using the drive handle to stop the supply of acetylene, and then the supply of oxygen to the ignition gun body 1 is stopped.

[0039] Furthermore, the locking assembly 6 also includes a connecting rod 65, a limiting block 66, and a corrugated sleeve 67. One end of the connecting rod 65 is fixedly connected to the connecting collar 61, and the outside of the connecting rod 65 is slidably sleeved with the fixed collar 63. The limiting spring 64 is slidably sleeved on the outside of the connecting rod 65. The limiting block 66 is fixedly connected to the end of the connecting rod 65. The limiting block 66 is located on the side of the fixed collar 63 away from the connecting collar 61. The limiting block 66 and the connecting rod 65 can also limit the maximum distance that the connecting collar 61 moves toward the valve 5. The ends of the corrugated sleeve 67 are fixedly connected to the connecting collar 61 and the fixed collar 63 respectively. The corrugated sleeve 67 is used to shield and protect the limiting spring 64.

[0040] Furthermore, the locking assembly 6 also includes a limiting strip 68 and a sliding groove 69. The limiting strip 68 is fixedly connected to the outside of the extension tube 4, and the sliding groove 69 is formed on the inner wall of the connecting collar 61. The outer wall of the limiting strip 68 is slidably sleeved with the inner cavity of the sliding groove 69. The limiting strip 68 can limit the connecting collar 61 and prevent the connecting collar 61 from rotating outside the extension tube 4, thereby ensuring the stability of the connecting collar 61 driving the snap-fit ​​component 62 to snap into the drive handle.

[0041] 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. A vertical furnace ignition gun, characterized in that, include: Ignition gun body (1), wherein the ignition gun body (1) uses oxygen and acetylene as fuel sources to spray flames; Wind shield (2), the wind shield (2) is fixedly connected to the end of the ignition gun body (1), and the length of the wind shield (2) is one-third of the length of the flame ejected from the ignition gun body (1); An extension tube (4) and a connecting assembly, wherein the extension tube (4) is mounted to the tail end of the ignition gun body (1) via the connecting assembly; Valve (5), which is fixedly installed at the end of the extension pipe (4), and the extension pipe (4) is connected to the external acetylene delivery pipe through the valve (5); Locking component (6), which is disposed outside the extension tube (4), is used to lock the drive handle of the valve (5).

2. The vertical furnace ignition gun according to claim 1, characterized in that, The connection component includes: Threaded sleeve (31), the threaded sleeve (31) is fixedly sleeved on one end of the outer wall of the extension tube (4), and the tail end of the ignition gun body (1) is threadedly sleeved with the threaded sleeve (31). Positioning collar (32) is fixedly sleeved on the outside of the ignition gun body (1), and one side of the positioning collar (32) is in contact with the threaded sleeve (31).

3. The vertical furnace ignition gun according to claim 1, characterized in that, The locking component (6) includes: A connecting collar (61) is slidably engaged with the outside of the extension tube (4); The snap-fit ​​component (62) is fixedly connected to the top of the connecting collar (61) and is slidably snapped onto the outside of the drive handle on the valve (5).

4. A vertical furnace ignition gun according to claim 3, characterized in that, The locking component (6) further includes: A fixing collar (63) is fixedly sleeved on the outside of the extension tube (4), and the fixing collar (63) is located on the side of the connecting collar (61) away from the valve (5); A limiting spring (64) is disposed between a fixed collar (63) and a connecting collar (61).

5. A vertical furnace ignition gun according to claim 4, characterized in that, The locking component (6) further includes: A connecting rod (65) is fixedly connected at one end to a connecting collar (61), and the outside of the connecting rod (65) is slidably inserted into a fixed collar (63). The limiting spring (64) is slidably sleeved on the outside of the connecting rod (65). Limiting block (66), the limiting block (66) is fixedly connected to the end of the connecting rod (65), the limiting block (66) is located on the side of the fixing collar (63) away from the connecting collar (61); A corrugated sleeve (67) is fixedly connected at its ends to a connecting collar (61) and a fixing collar (63).

6. A vertical furnace ignition gun according to claim 5, characterized in that, The locking component (6) further includes: A limiting strip (68) is fixedly connected to the outside of the extension tube (4); The groove (69) is formed on the inner wall of the connecting collar (61), and the outer wall of the limiting strip (68) is slidably sleeved with the inner cavity of the groove (69).

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