Water cooling type slag sluice flow nozzle and slag sluice

Abstract

The utility model discloses a water cooling type slag sluice flow nozzle and a slag sluice, the water cooling type slag sluice flow nozzle is used for being installed on the slag sluice and comprises a groove-shaped shell, the groove-shaped shell is provided with a cooling cavity in a hollow mode, the groove-shaped shell is provided with a water inlet and a water outlet which are communicated with the cooling cavity, and the water inlet and the water outlet are communicated with the cooling cavity. The water inlet and the water outlet are located in the groove edge of the groove-shaped shell. And the flow nozzle is cooled, the stability of the falling point of the slag flowing out of the flow nozzle is guaranteed, and the effectiveness of flushing the slag is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of steel production, in particular to a water-cooling type slag flushing ditch flow nozzle and a slag flushing ditch. Background Art

[0002] In a blast furnace that uses water slag flushing, the high-temperature liquid slag of the blast furnace flows out from the iron mouth, and after the slag and iron are separated in the main ditch, the slag flows into the slag ditch, and the slag flows from the slag ditch into the slag flushing ditch. The nozzle from the slag ditch into the slag flushing ditch is generally cast with slag ditch castable, and is maintained for a long time with water cannon mud. Long-term slag flow will burn the nozzle of the slag flushing ditch. If the maintenance is not in place, the nozzle will be burned, which will cause the slag flow point to change. The change in the slag landing point makes it impossible for water to flush the slag. After local accumulation begins, it will quickly cause the entire slag flushing ditch to accumulate, resulting in the slag flushing ditch being unable to flush water slag normally. When the accumulation is serious, the mouth must be forcibly blocked to interrupt the slag and iron discharge, affecting the normal slag and iron discharge of the blast furnace, causing the smooth operation of the blast furnace to be disrupted, and at the same time increasing the labor intensity of cleaning the slag accumulated in the slag flushing ditch and repairing the nozzle in front of the furnace. Utility Model Content

[0003] The utility model aims to provide a water-cooled slag flushing ditch flow nozzle and a slag flushing ditch, which cools the flow nozzle, ensures the landing point stability of the slag flowing out of the flow nozzle, and ensures the effectiveness of flushing the slag with water.

[0004] A water-cooled slag flushing ditch nozzle is used to be installed in a slag flushing ditch, comprising: a trough-shaped shell, a cooling cavity is hollowed out in the trough-shaped shell, the trough-shaped shell is provided with a water inlet and a water outlet connected to the cooling cavity, and the water inlet and the water outlet are located at the trough edge of the trough-shaped shell.

[0005] In one of the embodiments, the water inlet is located downstream of the trough-shaped shell in the slag flow direction.

[0006] In one of the embodiments, the water outlet is located upstream of the trough-shaped shell in the slag flow direction.

[0007] In one of the embodiments, the water-cooled slag flushing groove nozzle includes two water outlets, and each of the groove edges on both sides of the groove-shaped shell is provided with one water outlet.

[0008] In one embodiment, the groove-shaped housing is in the shape of a U-shaped groove.

[0009] A slag flushing ditch is provided with a water-cooling slag flushing ditch flow nozzle as described in any one of the above items, wherein the flow nozzle is located at the end of the slag flushing ditch and the flow nozzle is communicated with the slag flushing ditch.

[0010] In one of the embodiments, the slope of the flow nozzle is consistent with the slope of the slag flushing groove.

[0011] In one of the embodiments, a mounting groove is provided at the end of the slag flushing groove, and the flow nozzle is embedded in the mounting groove.

[0012] Compared with the prior art, the water-cooling slag flushing ditch flow nozzle and slag flushing ditch of the utility model have the following advantages:

[0013] The water-cooled slag flushing ditch nozzle 10 of this embodiment is used to be installed in the slag flushing ditch 20. By passing cooling water into the nozzle 10, the temperature is cooled down to maintain the nozzle 10 from deformation, increase the service life of the nozzle 10, ensure the stability of the landing point of the slag flowing out of the nozzle 10, and ensure the effectiveness of flushing the slag with water.

[0014] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the embodiment of the utility model in which the nozzle is installed in the slag flushing groove;

[0017] Figure 2 This is a schematic diagram of the structure of the slag flushing ditch in the embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a water-cooled slag flushing groove flow nozzle according to an embodiment of the utility model.

[0019] Among them, 10, flow nozzle, 11, groove-shaped shell, 12, water inlet, 13, water outlet, 20, slag ditch, 21, 1# iron mouth slag ditch, 22, 2# iron mouth slag ditch, 23, installation groove, 30, flushing nozzle. DETAILED DESCRIPTION

[0020] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In this embodiment, Figures 1 to 3 As shown, the water-cooled slag flushing ditch flow nozzle 10 of this embodiment is used to be installed in the slag flushing ditch 20. By passing cooling water to cool the flow nozzle 10, the flow nozzle 10 is maintained from deformation, the service life of the flow nozzle 10 is increased, the landing point stability of the slag flowing out of the flow nozzle 10 is ensured, and the effectiveness of flushing the slag with water is ensured.

[0024] like Figure 3 As shown, the water-cooled slag flushing ditch flow nozzle 10 is used to be installed in the slag flushing ditch 20, and includes: a trough-shaped shell 11, the trough-shaped shell 11 is hollow with a cooling cavity, the trough-shaped shell 11 is provided with a water inlet 12 and a water outlet 13 connected with the cooling cavity, and the water inlet 12 and the water outlet 13 are located at the groove edge 14 of the trough-shaped shell 11. Cooling water is introduced into the cooling cavity of the trough-shaped shell 11 through the water inlet 12, and the cooling water flows out from the water outlet 13 after passing through the cooling cavity. In this way, the cooling water can dissipate heat and cool down the flow nozzle 10.

[0025] The water inlet 12 is located downstream of the slag flow direction of the trough-shaped shell 11. The water outlet 13 is located upstream of the slag flow direction of the trough-shaped shell 11. The upstream end of the flow nozzle 10 is connected to the end of the slag flushing groove 20, and the downstream end of the flow nozzle 10 is the end where the slag flows away. The cooling water flows from the downstream to the upstream direction, so that the cooling effect received by the downstream end of the flow nozzle 10 is better, ensuring that the slag flow point is stable and that the flushing water can effectively dissipate the slag.

[0026] In this embodiment, two water outlets 13 are included, and each of the groove edges 14 on both sides of the groove-shaped housing 11 is provided with a water outlet 13. By providing a water inlet 12 and cooperating with two water outlets 13 located at the two groove edges 14, cooling water can flow through the entire groove-shaped housing 11 to ensure a cooling effect.

[0027] Preferably, the trough-shaped housing 11 is in a U-shaped trough shape. The U-shaped trough makes the slag flow smoother and the landing point more concentrated and stable.

[0028] like Figure 1 As shown, the 1# iron mouth slag groove 21 and the 2# iron mouth slag groove 22 converge into the slag flushing groove 20, and the slag flushing groove 20 is provided with a water-cooled slag flushing groove flow nozzle 10, the flow nozzle 10 is located at the end of the slag flushing groove 20, the flow nozzle 10 is connected with the slag flushing groove 20, and the water flushing nozzle 30 flushes water to the slag from the bottom of the slag flushing groove 20. When the slag flows out of the slag flushing groove 20, the flow nozzle 10 is the last thing that the slag contacts, and the cooling water is passed to cool the flow nozzle 10, which can protect the flow nozzle 10, avoid the deformation of the flow nozzle 10, and ensure that the slag flowing out after flowing through the flow nozzle 10 falls in a concentrated and stable place, thereby ensuring the slag flushing effect.

[0029] The slope of the flow nozzle 10 is consistent with the slope of the slag flushing groove 20, ensuring the flow continuity and stability of the slag.

[0030] like Figure 2 As shown, the end of the slag flushing ditch 20 is provided with a mounting groove 23, and the nozzle 10 is embedded in the mounting groove 23. The existing slag flushing ditch 20 can be modified and upgraded, and the mounting groove 23 is opened at the end of the slag flushing ditch 20, and the mounting groove 23 is 50mm-100mm lower than the slag flushing ditch 20. The nozzle 10 is installed in the mounting groove 23, and the center line of the nozzle 10 is aligned with the center line of the slag flushing ditch 20, and the slope is aligned. The joint of the nozzle 10 and the slag flushing ditch 20, the bottom of the nozzle 10, and the side wall of the nozzle 10 are filled and fixed with castables, and the cooling water inlet pipe is connected to the water inlet 12, and the cooling drain pipe is connected to the water outlet 13, and the castable is dried and put into use.

[0031] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A water-cooled slag flushing ditch nozzle, used for installation in a slag flushing ditch, characterized in that: include: A trough-shaped shell body is provided with a cooling cavity in the hollow of the trough-shaped shell body, and the trough-shaped shell body is provided with a water inlet and a water outlet communicated with the cooling cavity, and the water inlet and the water outlet are located at the trough edge of the trough-shaped shell body.

2. A water-cooled slag flushing ditch nozzle according to claim 1, characterized in that: The water inlet is located downstream of the trough-shaped shell in the slag flow direction.

3. The water-cooled slag flushing ditch nozzle according to claim 1, characterized in that: The water outlet is located upstream of the trough-shaped shell in the slag flow direction.

4. The water-cooling slag flushing ditch nozzle according to claim 3, characterized in that: It comprises two water outlets, and each of the groove edges on both sides of the groove-shaped shell is provided with one water outlet.

5. A water-cooled slag flushing ditch nozzle according to any one of claims 1 to 4, characterized in that: The groove-shaped housing is in a U-shaped groove shape.

6. A slag flushing ditch provided with a water-cooled slag flushing ditch nozzle according to any one of claims 1 to 5, characterized in that: The flow nozzle is located at the end of the slag flushing groove, and the flow nozzle is communicated with the slag flushing groove.

7. A slag flushing ditch according to claim 6, characterized in that: The slope of the flow nozzle is consistent with the slope of the slag flushing groove.

8. A slag flushing ditch according to any one of claims 6-7, characterized in that: A mounting groove is provided at the end of the slag flushing groove, and the flow nozzle is embedded in the mounting groove.

Images