A scrap steel baking gun

Abstract

The invention discloses a scrap steel baking gun, comprising a main gun and several auxiliary guns arranged around the main gun, the front ends of the main gun and the auxiliary guns are both inserted on a bottom plate; the scrap steel baking gun also comprises an oxygen pipe and a gas pipe, the oxygen pipe comprises an oxygen main pipe, the oxygen main pipe is connected to the main oxygen cavity of the main gun through the main gun oxygen inlet pipe after winding through the bottom plate, the main gun oxygen inlet pipe is also connected to the main gun epoxy pipe, the main gun epoxy pipe is connected to the main gun epoxy cavity; the oxygen main pipe is connected to the oxygen cavity of the auxiliary gun through the oxygen branch pipe after winding through the bottom plate; the gas pipe comprises a gas main pipe, the gas main pipe is connected to the main gun gas delivery pipe, the main gun gas delivery pipe is connected to the main gun gas cavity; the gas main pipe is also connected to the gas cavity of the auxiliary gun through the gas branch pipe. The invention spirals out oxygen after passing through the closed cavity of the bottom plate, can cool the gun body, and can heat the oxygen, the heated oxygen is then ejected and burned through the gun body, the reaction rate is increased, and efficient use of energy is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of smelting, and in particular to a scrap steel baking gun. Background Art

[0002] In the process of steel smelting, scrap steel is usually preheated, which can shorten the smelting cycle, improve smelting efficiency and reduce costs. At present, in the actual smelting process, the scrap steel baking cycle generally requires a relatively short time, so the general baking gun cannot achieve the heating effect in a short time, the effect of preheating the scrap steel is not good, and it causes a certain amount of energy waste. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a scrap steel baking gun.

[0004] The present invention is achieved according to the following technical solutions.

[0005] A scrap steel baking gun comprises a main gun and a plurality of auxiliary guns arranged around the main gun, wherein the front ends of the main gun and the auxiliary guns are both inserted on a bottom plate; the scrap steel baking gun also comprises an oxygen pipe and a gas pipe, wherein the oxygen pipe comprises an oxygen main pipe, which is connected to a main oxygen chamber of the main gun through a main gun oxygen inlet pipe after winding through the bottom plate, and the main gun oxygen inlet pipe is also connected to an epoxy pipe of the main gun, and the epoxy pipe of the main gun is connected to the epoxy chamber of the main gun; the oxygen main pipe is connected to the oxygen chamber of the auxiliary gun through oxygen branch pipes after winding through the bottom plate; the gas pipe comprises a gas main pipe, which is connected to a gas delivery pipe of the main gun, and the gas delivery pipe of the main gun is connected to the gas chamber of the main gun; the gas main pipe is also connected to the gas chamber of the auxiliary gun through gas branch pipes.

[0006] Furthermore, the main gun comprises a main gun main oxygen pipe, outside which a main gun gas pipe and a main gun outer pipe are sequentially sleeved, and a main gun nozzle is arranged at the front end of the main gun main oxygen pipe, the main gun gas pipe and the main gun outer pipe.

[0007] Furthermore, the auxiliary gun includes an auxiliary gun gas pipe, an auxiliary gun outer pipe is arranged outside the auxiliary gun gas pipe, and an auxiliary gun nozzle is arranged at the front ends of the auxiliary gun gas pipe and the auxiliary gun outer pipe.

[0008] Furthermore, an igniter interface tube is inserted into the bottom plate.

[0009] Furthermore, the oxygen branch pipe is provided with a first valve.

[0010] Furthermore, the oxygen main pipes are connected to the oxygen branch pipes through flow limiting nipples.

[0011] Furthermore, a second valve is provided on the gas branch pipe.

[0012] Furthermore, the edge of the bottom plate is connected to the reel.

[0013] The advantages and beneficial effects of the present invention are:

[0014] The present invention allows oxygen to swirl out after passing through the closed cavity of the chassis, which can cool the gun body on the one hand and heat the oxygen on the other hand. The heated oxygen is then ejected through the gun body and burned, thereby increasing the reaction rate and achieving efficient use of energy. At the same time, the present invention evenly distributes a number of auxiliary guns around a main gun, which increases the combustion range of the entire gun and increases the calorific value by increasing the combustion volume. The present invention can further shorten the smelting cycle, improve smelting efficiency, reduce smelting costs, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 is a top view of the present invention;

[0017] Figure 3 yes Figure 2 Sectional view along line AA;

[0018] Figure 4 yes Figure 3 Enlarged view of middle part B;

[0019] Figure 5 yes Figure 3 Enlarged view of part C in the middle.

[0020] Among them, 1. main gun; 11. main oxygen pipe of main gun; 12. main gas pipe of main gun; 13. outer pipe of main gun; 14. nozzle of main gun; 2. first auxiliary gun; 3. second auxiliary gun; 31. gas pipe of auxiliary gun; 32. outer pipe of auxiliary gun; 33. nozzle of auxiliary gun; 4. third auxiliary gun; 5. oxygen pipe; 51. oxygen main pipe; 52. first oxygen branch pipe; 53. second oxygen branch pipe; 54. third oxygen branch pipe; 55. oxygen inlet pipe of main gun; 56. epoxy pipe of main gun; 57. first valve; 58. flow limiting short joint; 6. gas pipe; 61. gas main pipe; 62. first gas branch pipe; 63. second gas branch pipe; 64. third gas branch pipe; 65. gas delivery pipe of main gun; 66. second valve; 7. reel; 8. igniter interface pipe; 9. bottom plate. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 5 As shown, a scrap steel baking gun includes a main gun 1, an auxiliary gun, an oxygen pipe 5, a gas pipe 6, a reel 7, an igniter interface pipe 8, and a bottom plate 9.

[0023] The front ends of the main gun 1 and the auxiliary gun of the present application are both inserted on the bottom plate 9, and the edge of the bottom plate 9 is connected to the reel 7. Specifically, the main gun 1 includes a main gun main oxygen pipe 11, and a main gun gas pipe 12 and a main gun outer pipe 13 are sequentially sleeved outside the main gun main oxygen pipe 11, and a main gun nozzle 14 is provided at the front ends of the main gun main oxygen pipe 11, the main gun gas pipe 12 and the main gun outer pipe 13. The main gun main oxygen pipe 11 contains a main gun main oxygen cavity, the annulus between the main gun main oxygen pipe 11 and the main gun gas pipe 12 forms a main gun gas cavity, and the annulus between the main gun gas pipe 12 and the main gun outer pipe 13 forms a main gun epoxy cavity.

[0024] Several auxiliary guns are evenly distributed around the main gun 1. The layout of several auxiliary guns around the main gun 1 increases the combustion range of the entire gun. Preferably, three auxiliary guns are provided, namely, the first auxiliary gun 2, the second auxiliary gun 3, and the third auxiliary gun 4. The following is further described with three auxiliary guns provided around the main gun 1.

[0025] Specifically, the first auxiliary gun 2, the second auxiliary gun 3, and the third auxiliary gun 4 have the same structure, and all include an auxiliary gun gas pipe 31, an auxiliary gun outer pipe 32 is arranged outside the auxiliary gun gas pipe 31, and auxiliary gun nozzles 33 are arranged at the front ends of the auxiliary gun gas pipe 31 and the auxiliary gun outer pipe 32. The auxiliary gun gas pipe 31 is inside a auxiliary gun gas chamber, and the annular space between the auxiliary gun gas pipe 31 and the auxiliary gun outer pipe 32 forms an auxiliary gun oxygen chamber.

[0026] The oxygen pipe 5 of the present application includes an oxygen main pipe 51, a part of the pipe body of the oxygen main pipe 51 is coiled in the bottom plate 9, and the oxygen main pipe 51 is connected to the main gun oxygen inlet pipe 55 after passing through the bottom plate 9, and the main gun oxygen inlet pipe 55 is connected to the main oxygen chamber of the main gun. The main gun oxygen inlet pipe 55 is also connected to the main gun epoxy pipe 56 through a tee, and the main gun epoxy pipe 56 is connected to the main gun epoxy chamber. In addition, the oxygen main pipe 51 after passing through the bottom plate 9 is also connected to the auxiliary gun oxygen chambers of the first auxiliary gun 2, the second auxiliary gun 3, and the third auxiliary gun 4 through the first oxygen branch pipe 52, the second oxygen branch pipe 53, and the third oxygen branch pipe 54 respectively. In order to control the oxygen entering the auxiliary gun, the present application sets a flow limiting short section 58 at the connection between the oxygen main pipe 51 and the first oxygen branch pipe 52, the second oxygen branch pipe 53, and the third oxygen branch pipe 54, and sets a first valve 57 on the first oxygen branch pipe 52, the second oxygen branch pipe 53, and the third oxygen branch pipe 54. Specifically, the first valve 57 can be a needle valve. The oxygen entering from the air inlet of the oxygen main pipe 51 flows along the oxygen main pipe 51. When it flows into the bottom plate 9, the oxygen exchanges heat with the gun body, the oxygen is preheated, and the gun body is cooled at the same time; then the oxygen flows out from the bottom plate 9, most of the oxygen enters the main gun oxygen inlet pipe 55, and the oxygen entering the main gun oxygen inlet pipe 55 is divided into two streams, one stream enters the main oxygen cavity of the main gun, and the other stream enters the main gun epoxy cavity through the main gun epoxy pipe 56; at the same time, a small amount of oxygen flowing out from the bottom plate 9 enters the auxiliary gun oxygen cavities of the first auxiliary gun 2, the second auxiliary gun 3, and the third auxiliary gun 4 through the first oxygen branch pipe 52, the second oxygen branch pipe 53, and the third oxygen branch pipe 54 respectively.

[0027] The gas pipe 6 includes a gas main pipe 61, which is connected to a main gun gas delivery pipe 65, and the main gun gas delivery pipe 65 is connected to the main gun gas chamber; in addition, the gas main pipe 61 is connected to the sub-gun gas chambers of the first sub-gun 2, the second sub-gun 3, and the third sub-gun 4 through the first gas branch pipe 62, the second gas branch pipe 63, and the third gas branch pipe 64. In order to control the gas entering the sub-gun, the present application sets a second valve 66 on the first gas branch pipe 62, the second gas branch pipe 63, and the third gas branch pipe 64. Specifically, the second valve 66 can be a manual ball valve. Most of the gas entering from the air inlet of the gas main pipe 61 enters the main gun gas chamber through the main gun gas delivery pipe 65, and a small part of the gas enters the sub-gun gas chambers of the first sub-gun 2, the second sub-gun 3, and the third sub-gun 4 through the first gas branch pipe 62, the second gas branch pipe 63, and the third gas branch pipe 64.

[0028] The bottom plate 9 of the present application is also provided with an igniter interface pipe 8 for connecting an igniter. After the igniter is ignited, the oxygen and fuel gas mixture ejected from the main gun and the auxiliary gun can be ignited, thereby achieving a baking effect on the scrap steel.

[0029] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A scrap steel roasting gun, characterized in that: The scrap steel baking gun comprises a main gun (1) and a plurality of auxiliary guns arranged around the main gun (1), wherein the front ends of the main gun (1) and the auxiliary guns are both inserted on a bottom plate (9); the scrap steel baking gun also comprises an oxygen pipe (5) and a fuel gas pipe (6), wherein the oxygen pipe (5) comprises an oxygen main pipe (51), wherein the oxygen main pipe (51) is connected to a main oxygen chamber of the main gun through a main gun oxygen inlet pipe (55) after winding through the bottom plate (9), and the main gun oxygen inlet pipe (55) is also connected to an epoxy pipe (56) of the main gun. The main gun epoxy pipe (56) is connected to the main gun epoxy cavity; the oxygen main pipe (51) is connected to the oxygen cavity of the auxiliary gun through the oxygen branch pipe after winding out from the bottom plate (9); the gas pipe (6) includes a gas main pipe (61), the gas main pipe (61) is connected to the main gun gas delivery pipe (65), the main gun gas delivery pipe (65) is connected to the main gun gas cavity; the gas main pipe (61) is also connected to the gas cavity of the auxiliary gun through the gas branch pipe.

2. The scrap steel roasting gun according to claim 1, characterized in that: The main gun (1) comprises a main gun main oxygen pipe (11), a main gun fuel gas pipe (12) and a main gun outer pipe (13) are sequentially sleeved outside the main gun main oxygen pipe (11), and a main gun nozzle (14) is provided at the front ends of the main gun main oxygen pipe (11), the main gun fuel gas pipe (12) and the main gun outer pipe (13).

3. The scrap steel roasting gun according to claim 1, characterized in that: The auxiliary gun comprises an auxiliary gun gas pipe (31), an auxiliary gun outer pipe (32) is arranged outside the auxiliary gun gas pipe (31), and auxiliary gun nozzles (33) are arranged at the front ends of the auxiliary gun gas pipe (31) and the auxiliary gun outer pipe (32).

4. The scrap steel roasting gun according to claim 1, characterized in that: An igniter interface tube (8) is also inserted on the bottom plate (9).

5. The scrap steel roasting gun according to claim 1, characterized in that: The oxygen branch pipe is provided with a first valve (57).

6. The scrap steel roasting gun according to claim 1, characterized in that: The oxygen main pipe (51) is connected to each oxygen branch pipe via a flow limiting nipple (58).

7. The scrap steel roasting gun according to claim 1, characterized in that: The gas branch pipe is provided with a second valve (66).

8. The scrap steel roasting gun according to claim 1, characterized in that: The edge of the bottom plate (9) is connected to the reel (7).

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