Cannon head and device for manufacturing iron notch mud sleeve

Abstract

The utility model discloses a cannon head and a device for manufacturing an iron notch mud sleeve. The cannon head comprises a cannon body, the bottom of the frustum is fixedly connected with the cannon body, the top of the frustum is closed, and the cross sectional area of the top of the frustum is smaller than that of the bottom of the frustum; and the positioning piece is used for positioning an iron notch, is arranged in the center of the top of the frustum and is fixedly connected with the top of the frustum. According to the cannon head, the manufacturing time can be shortened when a mud sleeve is manufactured, the mud sleeve is more convenient to repair, the mud leakage frequency of the iron notch is reduced, meanwhile, the iron notch is positioned through the positioning piece, so that the manufactured mud sleeve is provided with a positioning opening, a tapping machine is used for positioning and opening through the positioning opening of the mud sleeve, and therefore opening is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of iron-tip mud sleeves, specifically to a cannon head and device for making iron-tip mud sleeves. Background Technology

[0002] The function of the taphole mud sleeve is to ensure a tight seal between the hydraulic cannon head and the end of the taphole channel when the taphole is plugged with a hydraulic cannon after the slag and iron in the hearth have been completely discharged. This ensures that the mud is pushed into the channel under high pressure, without depressurization or leakage, and that the mud in the taphole channel reaches the specified density, stabilizing the taphole operating conditions. On the one hand, advancements in blast furnace technology and optimization of raw material quality have significantly increased the blast furnace smelting intensity, leading to increased pressure on the taphole for slag and iron discharge. On the other hand, due to the single taphole discharge, the time between the last plugging and the next taphole opening is relatively short, generally around 30 minutes. However, the high-temperature slag and iron during tapping and opening the taphole can easily cause localized damage to the taphole mud sleeve, resulting in mud sleeve breakage and leakage. After multiple improvements, the repair time for the mud sleeve is generally around 50 minutes, which cannot meet the blast furnace requirements, leading to furnace blockage and restricting the improvement of blast furnace smelting intensity. Utility Model Content

[0003] In view of this, in order to overcome at least one aspect of the above problems, this utility model provides a gun head for manufacturing iron-tipped clay sleeves, comprising the following steps:

[0004] Gun body;

[0005] A truncated cone, the bottom of which is fixedly connected to the gun body, the top of which is closed, and the cross-sectional area of ​​the top of which is smaller than the cross-sectional area of ​​the bottom of which is truncated.

[0006] A positioning element, used to position the iron opening, is located at the center of the top of the cone and is fixedly connected to the top of the cone.

[0007] In some embodiments, the gun head further includes:

[0008] An arc-shaped component is provided at the connection between the cone and the gun body.

[0009] In some embodiments, the gun head further includes:

[0010] A fastener is provided on the gun body and has an abutment surface on one side;

[0011] The fastener is fixedly connected to the arc-shaped component via the abutment surface.

[0012] In some embodiments, the positioning element is cylindrical in shape.

[0013] In some embodiments, the gun body, cone, and positioning element are made of steel or iron.

[0014] According to another aspect of this utility model, an apparatus for manufacturing iron-tip clay sleeves is also proposed, comprising a hydraulic cannon and a cannon head, wherein the cannon head comprises:

[0015] The gun body is detachably connected at one end to the hydraulic gun.

[0016] A truncated cone, the bottom of which is fixedly connected to the other end of the gun body, the top of which is closed, and the cross-sectional area of ​​the top of which is smaller than the cross-sectional area of ​​the bottom of which is closed.

[0017] A positioning element, used to position the iron opening, is located at the center of the top of the cone and is fixedly connected to the top of the cone.

[0018] In some embodiments, the gun head further includes:

[0019] An arc-shaped component is provided at the connection between the cone and the gun body.

[0020] In some embodiments, the gun head further includes:

[0021] A fastener is provided on the gun body and has an abutment surface on one side;

[0022] The fastener is fixedly connected to the arc-shaped component via the abutment surface.

[0023] In some embodiments, the positioning element is cylindrical in shape.

[0024] In some embodiments, the gun body, cone, and positioning element are made of steel or iron.

[0025] This utility model has one of the following beneficial technical effects: the gun head proposed by this utility model can shorten the production time when preparing the mud sleeve, and it is more convenient to repair the mud sleeve. The number of times the iron mouth leaks mud is reduced. At the same time, the iron mouth is positioned by the positioning component so that the produced mud sleeve has a positioning opening. The opening machine can be used to position the opening through the positioning opening of the mud sleeve, thereby making the opening more accurate. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0027] Figure 1 A structural diagram of a gun head for making an iron-tipped clay sleeve, provided for an embodiment of this utility model. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to specific examples and accompanying drawings.

[0029] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0030] According to one aspect of the present invention, an embodiment of the present invention provides a cannon head for manufacturing iron-tipped clay sleeves, such as... Figure 1 As shown, it may include:

[0031] Gun body 1;

[0032] A truncated cone 2, the bottom of which is fixedly connected to the gun body 1, the top of which is closed, and the cross-sectional area of ​​the top of which is smaller than the cross-sectional area of ​​the bottom of which is smaller.

[0033] Positioning component 3, used to position the iron opening, is located at the center of the top of the cone 2 and is fixedly connected to the top of the cone 2.

[0034] When fabricating the taphole mud sleeve using the solution proposed in this utility model, after the taphole is plugged and the blasting is completed, the mud on the old mud sleeve can be quickly ground off and smoothed using an opening machine. The prepared and mixed taphole channel casting material (mud material) is then piled in front of the taphole, pressed with a hydraulic blasting gun for 5 minutes, and the blasting is withdrawn, thus completing the mud sleeve fabrication. The blasting head proposed in this utility model can shorten the fabrication time for the mud sleeve and makes repairing the mud sleeve more convenient, reducing the number of times the taphole leaks mud. Simultaneously, the positioning element 3 positions the taphole, giving the fabricated mud sleeve a positioning opening. The opening machine can then be used to position the opening through the positioning opening of the mud sleeve, resulting in a more accurate opening.

[0035] In some embodiments, such as Figure 1 As shown, the gun body 1 is the main supporting structure of the entire gun head, usually cylindrical in shape, with a hollow chamber inside. The gun body 1 is generally made of high-strength, high-temperature resistant, and wear-resistant metal materials, such as high-quality alloy steel or iron, to ensure it can withstand the pressure of mud and the effects of high-temperature environments during repeated use. Its outer diameter is determined according to the specifications of the mud gun equipment used, generally ranging from tens to hundreds of centimeters, and its length is also designed according to actual needs, usually around one meter.

[0036] In some embodiments, the bottom of the cone 2 is fixed to the gun body 1 by reliable connection methods such as welding or high-strength bolts. Welding ensures the firmness of the connection, preventing loosening or separation during the pushing of mud, while bolts facilitate later disassembly and maintenance, allowing for relatively convenient replacement if the cone 2 needs to be replaced due to wear. The cone 2 has an overall shape that is smaller at the top and larger at the bottom, with the angle (cone angle) formed by its side and bottom surface generally in the range of 100°-120°. This angle design helps the mud to be spread relatively evenly along the side of the cone 2 during mud sleeve preparation, forming a mud sleeve of suitable and uniform thickness around the taphole. The diameter of the closed part at the top of the cone 2 is relatively small, usually determined according to the target size of the taphole mud sleeve. For example, for the production of taphole mud sleeves for conventional small and medium-sized blast furnaces, the diameter of the top of the cone 2 may be around 10-20 cm, while the diameter at the bottom where it connects to the gun body 1 is larger, generally around 20-30 cm.

[0037] The cone 2 plays a crucial guiding and clay distribution role in the production of the clay sleeve. When the clay gun is activated, due to the special shape of the cone 2, the clay will gradually disperse along the side of the cone 2 to the surrounding areas, so that the clay that ultimately acts on the area around the taphole can be evenly filled and accumulated, thereby forming a high-quality clay sleeve that meets the process requirements and effectively protecting the taphole area from adverse effects such as erosion by molten iron and slag.

[0038] In some embodiments, the positioning element 3 is located at the center of the top of the cone 2 and is fixedly connected thereto. Its main function is to accurately position the iron nozzle. Determining the accurate position of the iron nozzle is a crucial step in making the clay sleeve. The positioning element 3 helps the operator quickly locate the iron nozzle, allowing the subsequent making of the clay sleeve to be carried out around the accurate center point.

[0039] In practical applications, the accurate positioning provided by positioning component 3 shortens the time required to fabricate the mud sleeve. Because there's no need to spend excessive time repeatedly searching for and confirming the taphole location, operators can complete the mud sleeve fabrication process more efficiently, improving work efficiency. Furthermore, when the mud sleeve is subsequently damaged and needs repair, the positioning opening (formed by positioning component 3) facilitates the repair work. Operators can quickly ascertain the original key position information of the mud sleeve based on this positioning opening, allowing for accurate repair operations. Moreover, once the mud sleeve is fabricated, this positioning opening is crucial for the tapping machine. The tapping machine can use the positioning opening on the mud sleeve to locate the opening, making the tapping operation more accurate. Accurate tapping not only ensures a smooth tapping process but also reduces unnecessary damage to the mud sleeve and the surrounding structure of the taphole, while also reducing the frequency of abnormal situations such as taphole leakage, ensuring the stable and orderly operation of blast furnace ironmaking.

[0040] In some embodiments, the gun head further includes:

[0041] Arc-shaped component 4 is disposed at the connection between the cone 2 and the gun body 1.

[0042] Specifically, the arc-shaped component 4 is positioned at the connection between the cone 2 and the gun body 1, its shape conforming to the contour of the connection point, serving as a transitional joint. During the preparation of the clay sleeve, this area is a region of structural change, which can easily lead to poor clay flow and uneven accumulation. The arc-shaped component 4 improves the flow characteristics of the clay, preventing obstacles caused by structural abrupt changes from affecting the uniform distribution of clay during sleeve fabrication. Simultaneously, it enhances the overall structural strength of the connection between the cone 2 and the gun body 1, reducing the likelihood of damage to the connection due to stress concentration during repeated use.

[0043] In some embodiments, the gun head further includes:

[0044] Fixing member 5, the fixing member 5 is disposed on the gun body 1, and has an abutment surface on one side;

[0045] The fastener 5 is fixedly connected to the arc-shaped member 4 through the abutment surface.

[0046] Specifically, the fixing component 5 is mounted on the gun body 1, with an abutment surface on one side, through which it is fixedly connected to the arc-shaped component 4. This design allows the arc-shaped component 4 to be securely installed at the connection between the gun body 1 and the conical platform 2. The fixing component 5 can be connected to the gun body 1 by welding, bolting, or other reliable mechanical connection methods to ensure its position is fixed and will not easily loosen. The fixed connection between the abutment surface and the arc-shaped component 4 must also ensure sufficient strength. For example, welding can be used to tightly bond the two together, allowing the arc-shaped component 4 to stably perform its function of transition and enhancing structural strength when subjected to the pressure generated by the flow of mud and various forces during equipment operation.

[0047] In some embodiments, the positioning element 3 is cylindrical in shape.

[0048] Specifically, the cylindrical shape has a regular and symmetrical shape, making it easier to accurately locate the center position when positioning the taphole. Its smooth circumferential surface will not cause irregular interference with the distribution of clay material during the clay sleeve making process. Moreover, when the taphole machine performs the opening operation through the positioning port of the clay sleeve (formed by positioning component 3), the positioning port formed by the cylindrical positioning component 3 has a relatively regular edge, which facilitates the accurate alignment of the taphole machine's drill rod and other components for drilling operations. This helps to further improve the accuracy of the opening, ensure the smoothness of the taphole's subsequent use, and maintain the stability of the entire taphole clay sleeve structure.

[0049] In some embodiments, the gun body 1, the cone 2, and the positioning element 3 are made of steel or iron.

[0050] Specifically, the cannon body 1, cone 2, and positioning component 3 are made of steel or iron based on their excellent mechanical properties and machinability. Steel has high strength, hardness, and a certain degree of toughness, which can withstand the pressure of pushing mud and the impact force during equipment operation, ensuring that the cannon head will not easily deform or be damaged during use.

[0051] In some embodiments, Al2O3 and silicon carbide can be mixed with glue to obtain mud. This process is a waterless operation, does not require baking, shortens the mud jacket repair time, and is conducive to the stable operation of the blast furnace and reduces production costs.

[0052] According to another aspect of this utility model, a device is also proposed, such as... Figure 1 As shown, it includes:

[0053] According to another aspect of this utility model, an apparatus for manufacturing iron-tip clay sleeves is also proposed, comprising a hydraulic cannon and a cannon head, wherein the cannon head comprises:

[0054] One end of the gun body 1 is detachably connected to the hydraulic gun.

[0055] A truncated cone 2, the bottom of which is fixedly connected to the other end of the gun body 1, the top of which is closed, and the cross-sectional area of ​​the top of which is smaller than the cross-sectional area of ​​the bottom of which is smaller.

[0056] Positioning component 3, used to position the iron opening, is located at the center of the top of the cone 2 and is fixedly connected to the top of the cone 2.

[0057] In some embodiments, the gun head further includes:

[0058] Arc-shaped component 4 is disposed at the connection between the cone 2 and the gun body 1.

[0059] In some embodiments, the gun head further includes:

[0060] Fixing member 5, the fixing member 5 is disposed on the gun body 1, and has an abutment surface on one side;

[0061] The fastener 5 is fixedly connected to the arc-shaped member 4 through the abutment surface.

[0062] In some embodiments, the positioning element 3 is cylindrical in shape.

[0063] In some embodiments, the gun body 1, the cone 2, and the positioning element 3 are made of steel or iron.

[0064] The above are exemplary embodiments disclosed in this utility model. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this utility model as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this utility model may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0065] It should be understood that, as used herein, the singular form “a” is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, “and / or” refers to any and all possible combinations of one or more of the associated listed items.

[0066] The embodiment numbers disclosed in the above-described embodiments of the present utility model are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0067] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples. Within the framework of the present invention, technical features of the above embodiments or different embodiments can also be combined, and many other variations of different aspects of the present invention exist, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cannon head for manufacturing iron-tipped clay sleeves, characterized in that, include: Gun body; A truncated cone, the bottom of which is fixedly connected to the gun body, the top of which is closed, and the cross-sectional area of ​​the top of which is smaller than the cross-sectional area of ​​the bottom of which is truncated. A positioning element, used to position the iron opening, is located at the center of the top of the cone and is fixedly connected to the top of the cone.

2. The gun head as described in claim 1, characterized in that, The cannon head also includes: An arc-shaped component is provided at the connection between the cone and the gun body.

3. The gun head as described in claim 2, characterized in that, The cannon head also includes: A fastener is provided on the gun body and has an abutment surface on one side; The fastener is fixedly connected to the arc-shaped component via the abutment surface.

4. The gun head as described in claim 1, characterized in that, The positioning element is cylindrical in shape.

5. The gun head as described in claim 1, characterized in that, The gun body, cone, and positioning components are made of steel or iron.

6. An apparatus for making iron taphole sleeves, characterized in that, Includes a hydraulic cannon and a cannon head, wherein the cannon head includes: The gun body is detachably connected at one end to the hydraulic gun. A truncated cone, the bottom of which is fixedly connected to the other end of the gun body, the top of which is closed, and the cross-sectional area of ​​the top of which is smaller than the cross-sectional area of ​​the bottom of which is truncated. A positioning element, used to position the iron opening, is located at the center of the top of the cone and is fixedly connected to the top of the cone.

7. The apparatus as claimed in claim 6, characterized in that, The cannon head also includes: An arc-shaped component is provided at the connection between the cone and the gun body.

8. The apparatus as claimed in claim 7, characterized in that, The cannon head also includes: A fastener is provided on the gun body and has an abutment surface on one side; The fastener is fixedly connected to the arc-shaped component via the abutment surface.

9. The apparatus as claimed in claim 6, characterized in that, The positioning element is cylindrical in shape.

10. The apparatus as claimed in claim 6, characterized in that, The gun body, cone, and positioning components are made of steel or iron.

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