Burner opening water jacket of oxygen-enriched side-blown converter

Abstract

The utility model relates to a water jacket for a burner opening of an oxygen-enriched side-blown converter, which comprises a water jacket body, a water inlet pipe and a water outlet pipe, and the water jacket body is placed in the burner opening of the oxygen-enriched side-blown converter; the interior of the water jacket body is hollow; the water inlet pipe and the water outlet pipe are both communicated with the end, away from the oxygen-enriched side-blown converter body, of the water jacket body. According to the utility model, the water jacket body is kept cooled through the water inlet pipe and the water outlet pipe, and a layer of smelting slag is adhered to the joint of the water jacket body and the furnace wall and one side, close to the interior of the furnace body, of the water jacket through the cooling effect of the water jacket body when a melt is splashed, so that the furnace wall and a burner opening are prevented from being further scoured and ablated; by means of the device, the major safety risk caused by the fact that a nozzle opening cover plate is ablated by melt due to splashing of the melt in the furnace body and the splashing overflows out of the furnace body can be effectively reduced, and furnace wall damage caused by scouring of the high-temperature melt can be effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of crude copper smelting technology, and specifically relates to a burner nozzle sleeve for an oxygen-enriched side-blown furnace. Background Technology

[0002] Currently, in crude copper smelting, oxygen-enriched side-blown smelting furnaces typically have a rectangular structure with a burner opening on each of the front and rear end faces of the furnace wall. This allows for the installation of heating burners during start-up and heating of the furnace body. After heating is complete, the cover plates on the furnace wall above the burner openings are closed. However, the inventors discovered that in actual production, due to the intense molten reaction within the furnace and the close proximity of the molten surface to the burner openings, the molten material erodes the burner opening cover plates, splashing out of the furnace body and posing a significant safety risk. Furthermore, the frequent erosion of the burner openings by the molten material accelerates the erosion of the refractory bricks, increasing the risk of furnace wall burn-off. Utility Model Content

[0003] The purpose of this invention is to provide a burner nozzle sleeve for an oxygen-enriched side-blown furnace, which can solve the problems of slag spraying, excessive furnace wall temperature, and severe corrosion in side-blown smelting furnaces.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is a water jacket for an oxygen-enriched side-blown furnace burner, comprising a water jacket body, an inlet pipe, and an outlet pipe.

[0005] The water jacket body is placed in the burner opening of the oxygen-enriched side-blown furnace; the interior of the water jacket body is hollow; the water inlet pipe and the water outlet pipe are both connected to the end of the water jacket body away from the furnace body of the oxygen-enriched side-blown furnace; the water inlet pipe is located below the water outlet pipe.

[0006] Preferably, a ramming material layer is provided between the water jacket body and the inner wall of the burner orifice.

[0007] Preferably, the side plate of the water jacket body is fixed with a fixing plate; the fixing plate is located on the outside of the oxygen-enriched side-blown furnace body and is attached to the furnace body.

[0008] Preferably, the end of the water inlet pipe closest to the water jacket body is inserted into the water jacket body.

[0009] This utility model provides a burner nozzle sleeve for an oxygen-enriched side-blown furnace, which has the following advantages compared to existing technologies:

[0010] The water jacket body is kept cooled by the inlet and outlet water pipes. When the molten material splashes, the cooling effect of the water jacket body will cause a layer of smelting slag to adhere to the joint between the water jacket body and the furnace wall, as well as the side of the water jacket closer to the furnace body. This avoids further erosion of the furnace wall and burner opening, effectively reducing the major safety risks caused by molten material splashing from the furnace body, which could lead to molten material eroding the burner opening cover and splashing out of the furnace body, as well as the damage to the furnace wall caused by high-temperature molten material erosion. Attached Figure Description

[0011] Figure 1 A schematic diagram of the burner inlet structure of the oxygen-enriched side-blown furnace in the water jacket body;

[0012] Figure 2 This is a schematic diagram of the water jacket structure. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1 and 2 As shown, a water jacket for an oxygen-enriched side-blown furnace burner includes a water jacket body 1, an inlet pipe 2, and an outlet pipe 3.

[0015] The water jacket body 1 is placed in the burner opening of the oxygen-enriched side-blown furnace. The shape of the water jacket body 1 is adapted to the shape of the burner opening. The two ends of the water jacket body 1 are sealed, and a ramming material layer 4 is provided between the water jacket body 1 and the inner wall of the burner opening. After the water jacket body 1 is placed in the burner opening of the oxygen-enriched side-blown furnace, the ramming material is filled into the gap between the water jacket body 1 and the side wall of the burner opening. Due to the high viscosity of the ramming material, the first filled ramming material flows slowly along the gap between the water jacket body 1 and the side wall of the burner opening. When the ramming material reaches the inner wall of the furnace, the molten material splashed inside the furnace comes into contact with the ramming material, and the ramming material sticks to the water jacket body 1. Through the ramming material, the water jacket body 1 is fixed in the burner opening to prevent shaking.

[0016] The water jacket body 1 is hollow inside. Both the inlet pipe 2 and the outlet pipe 3 are connected to the end of the water jacket body 1 furthest from the oxygen-enriched side-blown furnace body. The inlet pipe 2 can be connected to an external water source or to the cooling water supply of the oxygen-enriched side-blown furnace body. Cooling water is introduced into the inlet pipe 2, which then flows into the interior of the water jacket body 1. The inlet pipe 2 is located below the outlet pipe 3, ensuring that cooling water flows in from the bottom and out from the top, thus ensuring the cooling effect of the water jacket body 1. During molten metal splashing, due to the cooling effect of the water jacket body 1, a layer of smelting slag adheres to the joint between the water jacket body 1 and the furnace wall, as well as to the side of the water jacket closest to the furnace body, thereby preventing further erosion and burning of the furnace wall and burner nozzle. This effectively reduces the significant safety risks caused by molten metal splashing inside the furnace body, which could lead to erosion of the burner nozzle cover and spillage outside the furnace body, as well as the damage to the furnace wall caused by high-temperature molten metal erosion.

[0017] In this embodiment, a fixing plate 11 is welded and fixed to the side plate of the water jacket body 1. The fixing plate 11 is located on the outside of the oxygen-enriched side-blown furnace body and is attached to the furnace body. It is connected to the oxygen-enriched side-blown furnace body by spot welding. When the water jacket body 1 is placed into the burner inlet of the oxygen-enriched side-blown furnace, the fixing plate 11 contacts the furnace body, and the water jacket body 1 cannot move further. This prevents the water jacket body 1 from slipping into the furnace body when it is manually placed. The fixing plate 11 is then spot-welded to the furnace body by hand to further fix the water jacket body 1.

[0018] In this embodiment, the end of the water inlet pipe 2 near the water jacket body 1 is inserted into the water jacket body 1. By setting the water inlet pipe 2 inside the water jacket body 1, water circulation inside the water jacket body 1 can be promoted, and the water can be fully stirred inside the water jacket body 1.

[0019] The method of using this utility model is as follows: When heating the oxygen-enriched side-blown furnace, the heating burner is installed into the burner opening. After heating is completed, the heating burner is removed, and the water jacket body 1 is placed into the burner opening. When the fixing plate 11 contacts the furnace body, the ramming material is filled into the gap between the water jacket body 1 and the side wall of the burner opening. Then, the fixing plate 11 is spot-welded to the furnace body, and cooling water is introduced into the water inlet pipe 2. After the cooling water fills the water jacket body 1, it flows out from the water outlet pipe 3. Since the crude copper smelting adopts the continuous copper smelting method, the furnace body is cooled down after one furnace cycle. At this time, when the internal maintenance of the furnace body is carried out, the water jacket body 1 is manually removed for the next use.

Claims

1. An oxygen-enriched side-blown furnace burner port water jacket characterized by, The water jacket body (1), the water inlet pipe (2) and the water outlet pipe (3), The water jacket body (1) is placed in the burner port of the oxygen-enriched side-blown furnace; the water jacket body (1) is hollow inside; the water inlet pipe (2) and the water outlet pipe (3) are both communicated with one end of the water jacket body (1) away from the furnace body of the oxygen-enriched side-blown furnace; the water inlet pipe (2) is arranged below the water outlet pipe (3).

2. The oxygen-enriched side blown lance nozzle port water jacket of claim 1, wherein, A rammed layer (4) is arranged between the water jacket body (1) and the inner wall of the burner port.

3. The oxygen-enriched side blown lance nozzle port water jacket of claim 1, wherein, A fixed plate (11) is fixed to the side plate of the water jacket body (1); the fixed plate (11) is arranged outside the furnace body of the oxygen-enriched side-blown furnace and is attached to the furnace body.

4. The oxygen-enriched side blown furnace burner port water jacket of claim 1, wherein, The end of the water inlet pipe (2) close to the water jacket body (1) is inserted into the water jacket body (1).

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