Blast furnace anti-explosion slag flushing jetting device

Abstract

The utility model discloses an anti-explosion slag flushing jetting device for a blast furnace, which relates to the technical field of blast furnace waste slag flushing, is arranged at the end part of a slag flushing trough and comprises a spray head, a slag flushing nozzle and a slag flushing nozzle, the main nozzle is rectangular and is positioned in the middle of the end part of the slag sluice groove; a first auxiliary nozzle, a second auxiliary nozzle and a third auxiliary nozzle are arranged on the two sides and the lower portion of the main nozzle respectively and correspond to the two side ditch walls and the bottom of the slag flushing ditch respectively. According to the spraying device, slag flushing water can be concentrated, and molten slag can be quickly quenched, scattered and granulated into water granulated slag; slag materials adhered to the side ditch wall and the bottom of the slag flushing ditch are effectively flushed away, and slag accumulation is prevented; different parts of the slag sluice can be sprayed at the same time, the nozzle cannot be blocked, and the risks of water return caused by slag accumulation in the slag sluice and serious physical explosion accidents are effectively avoided; and the fault and shutdown maintenance time is reduced, and the slag flushing efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace waste slag flushing, in particular to a blast furnace explosion-proof slag flushing injection device. Background Art

[0002] In blast furnace production, the combustion and smelting process of molten iron will produce a large amount of residue and slurry, which will be discharged into the slag flushing ditch through the pipeline. The slag flushing ditch needs to be cleaned with a high-pressure water column.

[0003] In the related technology, the nozzles for blast furnace water slag flushing are usually small round holes with a diameter of 20 mm, and have high requirements on water quality. If there are impurities with a diameter greater than 20 mm in the slag flushing water, the orifice plate will be blocked, thereby reducing the amount of slag flushing water; and after iron tapping, the amount of slag is large, and the orifice plate is blocked, resulting in a gradual decrease in the slag flushing ability of the nozzle, causing water to flow back into the slag flushing ditch. In severe cases, there is a risk of physical explosion, which seriously affects the continuity and efficiency of production, and the blocked orifice plate needs to be cleaned regularly, which is labor-intensive. Utility Model Content

[0004] The utility model aims to provide a blast furnace explosion-proof slag injection device to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A blast furnace explosion-proof slag injection device, arranged at the end of a slag flushing groove, comprises:

[0007] A nozzle, wherein a main nozzle is arranged in the middle of one side of the nozzle;

[0008] The main nozzle is configured as a rectangular structure and is located in the middle of the end of the slag flushing groove;

[0009] The first sub-nozzle, the second sub-nozzle and the third sub-nozzle are respectively arranged on both sides and the lower part of the main nozzle, and correspond to the groove walls and the bottom of the slag flushing groove on both sides respectively.

[0010] According to this solution, at least the following technical effects are achieved:

[0011] The explosion-proof slag flushing injection device for blast furnace is provided with a main nozzle in the middle of one side of the nozzle. The main nozzle is provided with a rectangular structure and is located in the middle of the end of the slag flushing groove. Compared with the prior art, the nozzle area is enlarged to avoid blockage, and the slag flushing water is concentrated, which can quickly quench and disperse the molten slag and granulate it into water slag; and the first sub-nozzle, the second sub-nozzle and the third sub-nozzle are respectively provided on both sides and the lower part of the main nozzle, and correspond to the groove walls and the bottom of the slag flushing groove on both sides respectively, so as to effectively flush away the slag adhering to the groove walls and the bottom of the slag flushing groove to prevent slag accumulation; the device makes it possible to spray different parts of the slag flushing groove at the same time without nozzle blockage, effectively avoiding the accumulation of slag in the slag flushing groove, causing backflow, and the risk of physical explosion accidents in severe cases; reducing failures and downtime maintenance time, and improving the efficiency and safety of slag flushing.

[0012] As a further solution of the present invention: the first sub-nozzle, the second sub-nozzle and the third sub-nozzle are respectively configured as arc-shaped strip structures.

[0013] By setting the first sub-nozzle, the second sub-nozzle and the third sub-nozzle as arc-shaped strip structures respectively, the spraying range of each sub-nozzle can be made wider, and the design of the arc-shaped strip structure can make the spraying flow more uniform, reduce the resistance during fluid spraying, and improve the efficiency and speed of the spraying.

[0014] As a further solution of the utility model: the first sub-nozzle and the second sub-nozzle are respectively arranged corresponding to the arc-shaped groove walls on both sides of the slag flushing groove.

[0015] By respectively arranging the first auxiliary nozzle and the second auxiliary nozzle corresponding to the arc-shaped groove walls on both sides of the slag flushing groove, the groove walls on both sides of the slag flushing groove can be effectively sprayed to prevent the slag from adhering to the groove walls on both sides of the slag flushing groove and avoid slag accumulation.

[0016] As a further solution of the utility model: the length of the first sub-nozzle and the length of the second sub-nozzle are both greater than the length of the arc section of the side wall of the slag flushing ditch.

[0017] Since the length of the first sub-nozzle and the length of the second sub-nozzle are both greater than the length of the arc section of the side wall of the slag flushing ditch, the spraying area of ​​the first sub-nozzle and the second sub-nozzle can be increased, so that the first sub-nozzle and the second sub-nozzle can better cover the arc sections on both sides of the slag flushing ditch, further facilitating the cleaning of the slag on the arc sections of the ditch walls on both sides of the slag flushing ditch, preventing the slag from adhering to the ditch walls on both sides of the slag flushing ditch, and avoiding slag accumulation.

[0018] As a further solution of the utility model: the third auxiliary nozzle is arranged corresponding to the arc-shaped bottom of the slag flushing groove.

[0019] By setting the third sub-nozzle corresponding to the arc-shaped bottom of the slag flushing ditch, the bottom of the slag flushing ditch can be effectively sprayed to prevent slag from depositing at the bottom of the slag flushing ditch, so that the water flow in the slag flushing ditch can be kept unobstructed, avoiding the risk of backflow caused by slag deposition and physical explosion.

[0020] As a further solution of the utility model: the length of the third auxiliary nozzle is greater than the length of the arc section at the bottom of the slag flushing groove.

[0021] Since the length of the third sub-nozzle is greater than the length of the arc section at the bottom of the slag flushing ditch, the spraying area of ​​the third sub-nozzle can be increased, so that the third sub-nozzle can better cover the arc bottom of the slag flushing ditch, further preventing slag from depositing at the bottom of the slag flushing ditch, keeping the water flow in the slag flushing ditch unobstructed, and avoiding the risk of backflow caused by slag deposition and physical explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 This is a structural schematic diagram of a blast furnace explosion-proof slag injection device;

[0024] Figure 2 The present invention is a schematic diagram of a blast furnace explosion-proof slag injection device in which each auxiliary nozzle is an arc-shaped strip structure.

[0025] Reference numerals:

[0026] 101, nozzle; 102, main nozzle; 103, first sub-nozzle; 104, second sub-nozzle; 105, third sub-nozzle. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] like Figure 1 The embodiment of the utility model shown is a blast furnace explosion-proof slag-flushing injection device, which is arranged at the end of the slag-flushing groove; one side of the injection device is connected to one end of the nozzle, and the other end of the nozzle is connected to the blast furnace, and the injection device comprises: a nozzle 101, and a main nozzle 102 is arranged in the middle of one side of the nozzle 101; the main nozzle 102 is arranged in a rectangular structure and is located in the middle of the end of the slag-flushing groove; the first sub-nozzle 103, the second sub-nozzle 104 and the third sub-nozzle 105 are respectively arranged on both sides and the lower part of the main nozzle 102, and correspond to the groove walls and the bottom of the slag-flushing groove on both sides respectively.

[0034] Specifically, the explosion-proof slag-flushing injection device for blast furnace is provided with a main nozzle 102 in the middle of one side of the nozzle 101. The main nozzle 102 is provided with a rectangular structure and is located in the middle of the end of the slag-flushing groove, so as to realize concentrated slag-flushing water, and can quickly quench and disperse the molten slag and granulate it into water slag; and a first sub-nozzle 103, a second sub-nozzle 104 and a third sub-nozzle 105 are provided on both sides and the lower part of the main nozzle 101, respectively, and correspond to the groove walls and the bottom of the slag groove on both sides, respectively, so as to effectively flush away the slag adhering to the groove walls and the bottom of the slag groove to prevent slag accumulation; the device makes it possible to spray different parts of the slag groove at the same time without nozzle clogging, effectively avoiding the accumulation of slag in the slag groove, causing backflow, and the risk of physical explosion accidents in severe cases; reducing failures and downtime maintenance time, and improving the efficiency and safety of slag flushing.

[0035] like Figure 2 In another embodiment of the present invention, the first sub-nozzle 103 , the second sub-nozzle 104 and the third sub-nozzle 105 are respectively configured as arc-shaped strip structures.

[0036] Specifically, by setting the first sub-nozzle 103, the second sub-nozzle 104 and the third sub-nozzle 105 as arc-shaped strip structures respectively, the spraying range of each sub-nozzle can be made wider, and the design of the arc-shaped strip structure can make the spraying flow more uniform, reduce the resistance during fluid spraying, and improve the efficiency and speed of the spraying.

[0037] Furthermore, the first sub-nozzle 103 and the second sub-nozzle 104 are respectively arranged corresponding to the arc-shaped groove walls on both sides of the slag flushing groove.

[0038] Specifically, by respectively arranging the first sub-nozzle 103 and the second sub-nozzle 104 corresponding to the arc-shaped groove walls on both sides of the slag flushing groove, the groove walls on both sides of the slag flushing groove can be effectively sprayed to prevent the slag from adhering to the groove walls on both sides of the slag flushing groove and avoid slag accumulation.

[0039] According to this embodiment, the length of the first sub-nozzle 103 and the length of the second sub-nozzle 104 are both greater than the length of the arc-shaped section of the side wall of the slag flushing ditch.

[0040] Specifically, since the length of the first sub-nozzle 103 and the length of the second sub-nozzle 104 are both greater than the length of the arc section of the side wall of the slag flushing ditch, the spraying area of ​​the first sub-nozzle 103 and the second sub-nozzle 104 can be increased, so that the first sub-nozzle 103 and the second sub-nozzle 104 can better cover the arc sections on both sides of the slag flushing ditch, further facilitating the cleaning of the slag in the arc sections of the ditch walls on both sides of the slag flushing ditch, preventing the slag from adhering to the ditch walls on both sides of the slag flushing ditch, and avoiding slag accumulation.

[0041] Furthermore, the third auxiliary nozzle 105 is arranged corresponding to the arc-shaped bottom of the slag flushing groove.

[0042] Specifically, by setting the third sub-nozzle 105 corresponding to the arc-shaped bottom of the slag flushing ditch, the bottom of the slag flushing ditch can be effectively sprayed to prevent slag from depositing at the bottom of the slag flushing ditch, so that the water flow in the slag flushing ditch can be unobstructed, avoiding the risk of backflow caused by slag deposition and physical explosion.

[0043] According to this embodiment, the length of the third sub-nozzle 105 is greater than the length of the arc section at the bottom of the slag flushing groove.

[0044] Specifically, since the length of the third sub-nozzle 105 is greater than the length of the arc section at the bottom of the slag flushing ditch, the spraying area of ​​the third sub-nozzle 105 can be increased, so that the third sub-nozzle 105 can better cover the arc bottom of the slag flushing ditch, further preventing slag from depositing at the bottom of the slag flushing ditch, so that the slag flushing ditch maintains smooth water flow, avoiding the risk of backflow caused by slag deposition and physical explosion.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A blast furnace explosion-proof slag injection device, arranged at the end of a slag flushing groove, characterized in that: include: A spray head (101), wherein a main nozzle (102) is disposed in the middle of one side of the spray head (101); The main nozzle (102) is configured as a rectangular structure and is located in the middle of the end of the slag flushing groove; A first sub-nozzle (103), a second sub-nozzle (104) and a third sub-nozzle (105) are respectively arranged on both sides and the lower part of the main nozzle (102), and correspond to the groove walls and the bottom of both sides of the slag flushing groove respectively.

2. The blast furnace explosion-proof slag injection device according to claim 1, characterized in that: The first sub-nozzle (103), the second sub-nozzle (104) and the third sub-nozzle (105) are respectively configured as arc-shaped strip structures.

3. The blast furnace explosion-proof slag injection device according to claim 2, characterized in that: The first auxiliary nozzle (103) and the second auxiliary nozzle (104) are respectively arranged corresponding to the arc-shaped groove walls on both sides of the slag flushing groove.

4. The blast furnace explosion-proof slag injection device according to claim 3, characterized in that: The length of the first auxiliary nozzle (103) and the length of the second auxiliary nozzle (104) are both greater than the length of the arc section of the side wall of the slag flushing groove.

5. The blast furnace explosion-proof slag injection device according to claim 2, characterized in that: The third auxiliary nozzle (105) is arranged corresponding to the arc-shaped bottom of the slag flushing groove.

6. The blast furnace explosion-proof slag injection device according to claim 5, characterized in that: The length of the third auxiliary nozzle (105) is greater than the length of the arc section at the bottom of the slag flushing groove.

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