Blast furnace mud sleeve cleaning device

Abstract

The utility model relates to the technical field of steelmaking equipment, and particularly discloses a blast furnace mud sleeve cleaning device which comprises a drill bit, a rotating disc and a connecting part, the drill bit is arranged in the center of the upper end of the rotating disc, the upper end of the drill bit is provided with a plurality of first cutting edges and first ash discharging grooves, and the first cutting edges and the first ash discharging grooves are alternately arranged; a first air hole is formed in the center of the drill bit and penetrates through the drill bit from top to bottom; the turntable is provided with a plurality of racks and second ash discharge grooves, the racks and the second ash discharge grooves are alternately arranged, the upper end surfaces of the racks are provided with second blades, the center of the turntable is provided with a second air hole, the second air hole penetrates through the turntable from top to bottom, and the second air hole is communicated with the first air hole; and the connecting part is arranged at the center of the lower end of the rotating disc, a third air hole is formed in the center of the connecting part, the third air hole penetrates through the connecting part from top to bottom, and the third air hole communicates with the second air hole.

Description

Technical Field

[0001] The present application relates to the technical field of steelmaking equipment, and in particular to a blast furnace mud jacket cleaning device. Background Art

[0002] During normal blast furnace production, the taphole mud sleeve is cast with refractory mud. Its function is to seal the taphole when the mud gun is used to block the taphole, ensuring a safe and effective seal. The taphole mud sleeve operates in a high-temperature environment, and prolonged contact with the hot slag and iron surface can easily cause gaps or bulges.

[0003] When the iron mouth mud sleeve of the blast furnace becomes uneven, personnel are required to clean and smooth it. Otherwise, it is very easy to cause mud leakage, burnt gun nozzles, insufficient furnace door depth, etc. For a long time, due to the lack of special cleaning and repair tools for the iron mouth mud sleeve, cleaning, smoothing and repairing the mud sleeve has become an urgent task that is labor-intensive, time-consuming, and has certain safety hazards. Summary of the Invention

[0004] The purpose of this application is to provide a blast furnace mud sleeve cleaning device to solve the problem in the prior art that due to the lack of special cleaning and repair tools for the iron mouth mud sleeve, cleaning, grinding and repairing the mud sleeve becomes a labor-intensive and time-consuming task with high labor intensity and certain safety hazards.

[0005] To achieve the above-mentioned purpose, the embodiment of the present application provides a blast furnace mud jacket cleaning device, comprising: a drill bit, a rotary disc, and a connecting part, wherein:

[0006] The drill bit is arranged at the center of the upper end of the turntable, and a plurality of first blades and first ash discharge grooves are provided on the upper end of the drill bit, wherein the first blades and the first ash discharge grooves are arranged alternately, and a first air hole is provided at the center of the drill bit, and the first air hole passes through the drill bit from top to bottom;

[0007] The turntable is provided with a plurality of racks and second ash discharge grooves, the racks and second ash discharge grooves are arranged alternately, the upper end surface of the rack is provided with a second blade, and the center of the turntable is provided with a second air hole, the second air hole passes through the turntable from top to bottom, and the second air hole is connected to the first air hole;

[0008] The connecting portion is arranged at the center of the lower end of the turntable, and a third air hole is provided at the center of the connecting portion. The third air hole passes through the connecting portion from top to bottom, and the third air hole is communicated with the second air hole.

[0009] Optionally, the first blade is arranged on the upper end surface of the drill bit, the first blade is in the shape of an elongated strip, one end of the first blade points to the central axis of the drill bit, and the first blade is perpendicular to the central axis of the drill bit.

[0010] Optionally, the first ash discharge groove is provided between every two of the first cutting edges, with one end of the first ash discharge groove extending to the upper end surface of the drill bit and the other end extending downward on the side surface of the drill bit.

[0011] Optionally, four of the first blades and four of the first ash discharge grooves are provided.

[0012] Optionally, the second blade is in the shape of an elongated strip, one end of the second blade points to the central axis of the turntable, and the second blade is perpendicular to the central axis of the turntable.

[0013] Optionally, the second ash row chute is provided between every two of the racks, and the second ash row chute passes through the turntable from top to bottom.

[0014] Optionally, the inner wall of the third air hole is provided with threads.

[0015] Optionally, there are six of each of the second blade, rack, and second ash trough.

[0016] Optionally, the turntable is a steel plate with a thickness of 15 mm to 25 mm, the diameter of the turntable is 140 mm to 160 mm, and the size of the second blade is 10 mm to 20 mm thick, 35 mm to 45 mm long, and 15 mm to 25 mm wide.

[0017] The embodiments of the present application have the following advantages:

[0018] Compared to existing technologies, the above-mentioned technical solution provides a blast furnace mud jacket cleaning device for quickly cleaning furnace door mud jackets. The device is designed to be installed on the tapping machine drill rod and rotated by the tapping machine to clean the furnace door mud jacket. This device is quick and convenient, achieving a smoother and deeper finish than manual cleaning. It can efficiently and quickly clean the mud jacket completely. This solves the problem of the lack of dedicated cleaning and repair tools for tapping mud jackets, making cleaning and smoothing the jacket a labor-intensive, time-consuming, and expedited task that poses certain safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0020] Figure 1 A front view of a blast furnace mud jacket cleaning device provided by at least one embodiment of the present application;

[0021] Figure 2 A top view of a blast furnace mud jacket cleaning device provided by at least one embodiment of the present application;

[0022] Figure 3 A bottom view of a blast furnace mud jacket cleaning device provided in at least one embodiment of the present application.

[0023] Description of reference numerals:

[0024] 1 drill bit, 2 connecting part, 3 first cutting edge, 4 first row of ash grooves, 5 first air hole, 6 rack, 7 second row of ash grooves, 8 second cutting edge, 9 third air hole. DETAILED DESCRIPTION

[0025] The following specific embodiments illustrate the implementation of this application. Those familiar with the art can easily understand the other advantages and functions of this application from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 application. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0028] The present application embodiment provides a blast furnace mud jacket cleaning device, referring to Figures 1 to 3 ,include:

[0029] Drill bit 1, rotary disc, connecting part 2, wherein,

[0030] The drill bit 1 is arranged at the center of the upper end of the turntable. The upper end of the drill bit 1 is provided with a plurality of first blades 3 and first ash discharge grooves 4. The first blades 3 and the first ash discharge grooves 4 are arranged alternately. A first air hole 5 is provided at the center of the drill bit 1. The first air hole 5 passes through the drill bit 1 from top to bottom.

[0031] The turntable is provided with a plurality of racks 6 and second ash discharge grooves 7, which are alternately arranged. The upper end surface of the rack 6 is provided with a second blade 8. A second air hole is provided in the center of the turntable, which passes through the turntable from top to bottom and is connected to the first air hole 5.

[0032] The connecting portion 2 is provided at the center of the lower end of the turntable. A third air hole 9 is provided at the center of the connecting portion 2. The third air hole 9 passes through the connecting portion 2 from top to bottom, and the third air hole 9 is communicated with the second air hole.

[0033] The first cutting edge 3 is arranged on the upper end surface of the drill bit 1 . The first cutting edge 3 is in the shape of an elongated strip. One end of the first cutting edge 3 points to the central axis of the drill bit 1 . The first cutting edge 3 is perpendicular to the central axis of the drill bit 1 .

[0034] The first ash discharge groove 4 is provided between every two of the first cutting edges 3 , with one end of the first ash discharge groove 4 extending to the upper end surface of the drill bit 1 , and the other end extending downward on the side surface of the drill bit 1 .

[0035] There are four first blades 3 and four first ash discharge grooves 4 .

[0036] The second blade 8 is in the shape of an elongated strip, one end of the second blade 8 points to the central axis of the turntable, and the second blade 8 is perpendicular to the central axis of the turntable.

[0037] The second ash row chute 7 is provided between every two of the racks 6 , and the second ash row chute 7 passes through the turntable from top to bottom.

[0038] The inner wall of the third air hole 9 is provided with threads.

[0039] Specifically, the thread is used to be threadedly connected to the end of the drill rod of the opening machine. After the connection, the air hole of the drill rod of the opening machine is connected to the third air hole 9, the second air hole, and the first air hole 5. The furnace door mud sleeve is cleaned by rotating the opening machine, and high-pressure gas can be discharged into the furnace door mud sleeve through the air hole of the drill rod of the opening machine and the third air hole 9, the second air hole, and the first air hole 5, which is used to assist in cleaning the furnace door mud sleeve and prevent ash from clogging the first ash trough 4 or the second ash trough 7.

[0040] There are six of each of the second blade 8 , rack 6 , and second ash chute 7 .

[0041] The turntable is a steel plate with a thickness of 15mm to 25mm and a diameter of 140mm to 160mm. The dimensions of the second blade 8 are 10mm to 20mm thick, 35mm to 45mm long, and 15mm to 25mm wide.

[0042] Specifically, a 20mm thick steel plate with a diameter of 150mm is cut into a circular turntable. A 60mm diameter center hole is cut in the center of the turntable. A drill bit 1 is placed in the center hole and welded to the turntable. The portion above the turntable is the drill bit 1, and the portion below the turntable is the connecting portion 2. The center hole is the second air hole. The drill bit 1 is used to control the center point of the furnace door to prevent it from deviating from the position when cleaning the mud sheath. During use, the third air hole 9 of the connecting portion 2 is threaded onto the end of the drill rod of the opening machine, and the furnace door mud sheath is cleaned by rotating the opening machine.

[0043] Specifically, the turntable is divided into six parts on average, and a stainless steel strip with a thickness of 15 mm, a length of 40 mm and a width of 20 mm is welded in the middle of each part, and the stainless steel strip is used as the second blade 8. The homemade device is equivalent to the grinding disc form.

[0044] In summary, compared with the prior art, the blast furnace mud jacket cleaning device provided in this application, installed on the tapping machine drill rod, eliminates frequent burnout of the mud gun nozzle after the tapping machine is rotated to clean the furnace door mud jacket. This ensures the depth of the furnace door and the time it takes to tap the iron. This mechanized tapping mud jacket maintenance allows operators and tool electrical components to be kept away from the harsh environment of the tapping area, ensuring the quality of mud jacket maintenance, reducing workers' labor intensity, and ensuring safe and efficient cleaning. This solves a major problem for blast furnaces.

[0045] The use of a mud jacket cleaning device reduces the harsh working conditions of workers in front of the furnace and mechanizes mud jacket maintenance. This eliminates the need for personnel to clean the mud jacket on the furnace door, preventing workers from getting burned or poisoned while doing so, and eliminates potential safety hazards. This improves work efficiency and reduces labor costs.

[0046] In summary, the use of the blast furnace mud jacket cleaning device provided in this application can reduce the accident rate of blast furnace air reduction or air adjustment, reduce the amount of taphole mud used, and simultaneously stabilize the depth of the furnace door, ensure the iron tapping time, reduce the number of workers required, and provide economic benefits. It also improves the working environment and stabilizes blast furnace production.

[0047] Note that, unless otherwise directly stated, all features disclosed in this specification (including any accompanying claims, abstracts and drawings) may be replaced by alternative features for achieving the same, equivalent or similar purposes. Therefore, unless otherwise explicitly stated, each feature disclosed is only an example of a group of equivalent or similar features. Where used, further, preferably, further and more preferably are a simple starting point for elaborating another embodiment based on the aforementioned embodiment, and the content of the further, preferably, further or more preferably followed by the above embodiment is combined with the aforementioned embodiment as a complete composition of another embodiment. Several further, preferably, further or more preferably settings following the same embodiment can be arbitrarily combined to form another embodiment.

[0048] In the implementation of functions and steps, the corresponding functions and steps in various embodiments may also occur in a different order than shown. For example, two consecutive functions and steps can actually be performed or implemented substantially in parallel, or they can sometimes be performed or implemented in the opposite order, depending on the functions involved.

[0049] Although the present application has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made based on the present application. Therefore, such modifications or improvements, which do not depart from the spirit of the present application, are within the scope of protection claimed in the present application.

Claims

1. A blast furnace mud jacket cleaning device, characterized in that: include: Drill bit, rotary disc, connecting part, wherein, The drill bit is arranged at the center of the upper end of the turntable, and a plurality of first blades and first ash discharge grooves are provided on the upper end of the drill bit, wherein the first blades and the first ash discharge grooves are arranged alternately, and a first air hole is provided at the center of the drill bit, and the first air hole passes through the drill bit from top to bottom; The turntable is provided with a plurality of racks and second ash discharge grooves, the racks and second ash discharge grooves are arranged alternately, the upper end surface of the rack is provided with a second blade, and the center of the turntable is provided with a second air hole, the second air hole passes through the turntable from top to bottom, and the second air hole is connected to the first air hole; The connecting portion is arranged at the center of the lower end of the turntable, and a third air hole is provided at the center of the connecting portion. The third air hole passes through the connecting portion from top to bottom, and the third air hole is communicated with the second air hole.

2. The blast furnace mud jacket cleaning device according to claim 1, characterized in that: The first blade is arranged on the upper end surface of the drill bit. The first blade is in the shape of an elongated strip. One end of the first blade points to the central axis of the drill bit. The first blade is perpendicular to the central axis of the drill bit.

3. The blast furnace mud jacket cleaning device according to claim 1, characterized in that: The first ash discharge groove is arranged between every two of the first cutting edges. One end of the first ash discharge groove extends to the upper end surface of the drill bit, and the other end extends downward on the side surface of the drill bit.

4. The blast furnace mud jacket cleaning device according to claim 1, characterized in that: There are four first blades and four first ash discharge grooves.

5. The blast furnace mud jacket cleaning device according to claim 1, characterized in that: The second blade is in the shape of an elongated strip, one end of the second blade points to the central axis of the turntable, and the second blade is perpendicular to the central axis of the turntable.

6. The blast furnace mud jacket cleaning device according to claim 1, characterized in that: The second ash row chute is arranged between every two of the racks, and the second ash row chute passes through the turntable from top to bottom.

7. The blast furnace mud jacket cleaning device according to claim 1, characterized in that: The inner wall of the third air hole is provided with threads.

8. The blast furnace mud jacket cleaning device according to claim 1, characterized in that: There are six of each of the second blade, rack and second row of ash troughs.

9. The blast furnace mud jacket cleaning device according to claim 1, characterized in that: The turntable is a steel plate with a thickness of 15mm to 25mm and a diameter of 140mm to 160mm. The dimensions of the second blade are 10mm to 20mm thick, 35mm to 45mm long, and 15mm to 25mm wide.

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