CN210122579U

CN210122579U - Air hole drill rod for converter

Info

Publication number: CN210122579U
Application number: CN201920657579.7U
Authority: CN
Inventors: 王学建; 肖建波; 余彬
Original assignee: Middle Regions Of Yunnan Province Chuxiong Non-Ferrous Metal Co Ltd
Current assignee: Middle Regions Of Yunnan Province Chuxiong Non-Ferrous Metal Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-03-03
Anticipated expiration: 2029-05-08

Abstract

The utility model relates to a wind hole drill rod for a converter, which belongs to the field of metal smelting auxiliary equipment, and comprises a drill rod, a working end and a fixed end; the fixed end is in a cone structure and is fixed with the left end of the drill rod; a riveting hole is formed in the center of the right end of the drill rod, a riveting rod matched with the riveting hole is arranged in the center of the left end of the working end, the working end is riveted with the inside of the drill rod through the riveting rod and the riveting hole, and the outside of the drill rod is welded; the end of the working end is in a cone structure. The utility model discloses imitate the damage that reduces the drill rod to pipe wall and wind package when clearance wind eye pipe, the impact resistance of drill rod is longer simultaneously, extension drill rod life reduces post personnel's intensity of labour, and simple structure is practical.

Description

Air hole drill rod for converter

Technical Field

The utility model belongs to the metal smelting auxiliary assembly field, specific theory relates to a wind eye drill rod for converter.

Background

A poking wind eye machine is one of key equipment of a copper smelting converter and is indispensable auxiliary equipment for ensuring the smooth operation of a blowing process. When the converter blows, air entering the converter participates in the reaction of copper matte, metal copper is separated out from the copper matte, and part of the metal copper is adhered to the pipe wall and the outlet of the straight air pipe. In addition, in the blowing process of the copper matte, oxidation slag is accumulated at the mouth of the tuyere pipe to gradually block the mouth of the tuyere pipe, so that the air intake is reduced, and the blowing of the converter is influenced. Therefore, the air duct must be cleaned to ensure the smooth pipeline.

The device that clearance wind eye used at present is mostly the drill rod of self-control, and the surface is irregular, easily damages wind eye pipe and wind package when using, and poor, the life-span of anti-impact force is short when using.

Disclosure of Invention

In order to overcome the problem that exists among the background art, the utility model provides a wind eye drill rod for converter can effectively reduce the drill rod to the damage of pipe wall and wind package when clearance wind eye pipe, and the impact resistance of drill rod is longer simultaneously, prolongs drill rod life, reduces post personnel's intensity of labour, and simple structure is practical.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the air hole drill rod for the converter comprises a drill rod, a working end and a fixed end; the fixed end is in a cone structure and is fixed with the left end of the drill rod; the working end is riveted with the inside of the right end of the drill rod and welded with the outside of the right end of the drill rod; the end of the working end is in a cone structure.

Preferably, the fixed end is welded with the drill rod or is of an integral structure.

Preferably, the center of the right end of the drill rod is provided with a riveting hole, the center of the left end of the working end is provided with a riveting rod matched with the riveting hole, the working end is riveted with the inside of the drill rod through the riveting rod and the riveting hole, and the outside of the working end is welded.

Preferably, the taper height a of the fixed end is more than 25mm, and the diameter of the left end face is 42 mm.

Preferably, the drill rod is within 1900mm to 2300mm in length.

Preferably, the diameter of the right end face of the conical end of the working end is 36 mm.

Preferably, the drill rod is made of hexagonal steel with a diameter of 25 mm.

Preferably, the material of the working end is tungsten-molybdenum alloy steel.

The utility model has the advantages that:

the utility model is designed according to the shape characteristics of the wind eye pipe of the wind eye machine, which can effectively reduce the damage to the pipe wall and the wind bag when the drill rod cleans the wind eye pipe, and prolong the service life of the wind eye pipe and the wind bag; meanwhile, through the design of shape, size and connection mode, the impact force on the drill rod during cleaning is effectively reduced, and the service life of the drill rod can be prolonged by more than two times; through practical use, the drill rod with the structure is higher in cleaning efficiency and shorter in cleaning time, and the labor intensity of workers is effectively reduced; the working end is made of tungsten-molybdenum alloy, so that the device can adapt to high temperature in a smelting furnace; the utility model has the advantages of simple structure and strong practicability, and can be widely popularized and applied to the use of cleaning air holes of metallurgical furnaces.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view taken along plane A-A of FIG. 1;

in the figure, 1-drill rod, 2-working end, 3-fixed end, 4-riveting hole and 5-riveting rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.

As shown in figures 1-2, the blast hole drill rod for the converter comprises a drill rod 1, a working end 2 and a fixed end 3.

The fixed end 3 is in a cone structure and is welded and fixed with the drill rod 1 or is in an integrated structure; the working end 2 is riveted with the right end of the drill rod 1 internally and welded externally; the end of the working end 2 is in a cone structure. 3 taper height an of stiff end is greater than 25mm, and left end face diameter is 42mm, and this diameter can be when using, put into the draw-in groove of eye machine slide with stiff end 3, and the draw-in groove internal diameter is slightly bigger than the biggest external diameter of stiff end 3, when clearance eye pipe, blocks stiff end 3 in the draw-in groove of eye machine, guarantees to fix the drill rod and can not withdraw from at eye machine during operation, and the impact when the design of taper height an can guarantee that stiff end 3 has sufficient intensity reply clearance.

The length of the drill rod 1 is 2140mm, the length is slightly larger than the sum of the distance between the air hole machine and the furnace body and the length of the air hole pipe in the furnace, the drill rod can be adjusted according to actual conditions, the length can ensure the thorough cleaning of the air hole pipe, the drill rod 1 is made of hexagonal steel with the diameter of 25mm, the hexagonal steel has strong impact resistance and strength, and the specific diameter size can be adjusted according to the strength requirement of use.

The working end 2 is connected at the right end of the drill rod 1, a riveting hole 4 is formed in the center of the right end of the drill rod 1, a riveting rod 5 matched with the riveting hole 4 is arranged at the center of the left end of the working end 2, the working end 2 is riveted with the inside of the drill rod 1 through the riveting rod 5 and the riveting hole 4, and the outside is welded in a full-welding mode. The riveting has the antidetonation, and is shock-resistant, characteristics such as firm in connection is reliable, and the welding has that connection performance is good, high temperature resistant, high pressure, has characteristics such as good leakproofness, corrosion resistance, wearability, and the combination of the two not only can be that work end 2 is more firm with being connected of drill rod 1, and when work end 2 damages and needs to be changed, can guarantee drill rod 1 intact, and during the riveting mode the utility model discloses an overall structure has certain shock resistance, and then prolongs its life.

The working end 2 adopts the tungsten-molybdenum alloy steel material to make, and its left end is the hexagonal prism the same with drill rod 1 size, and the right-hand member is the circular cone end, and the right-hand member face diameter of circular cone end is 36mm, and this size slightly is less than the tuber pipe internal diameter of wind eye machine, both can guarantee the utility model discloses in the tuber pipe free activity, can guarantee again that the clearance of wind eye pipe is cleaner, thorough. The working end 2 is made of tungsten-molybdenum alloy steel materials, and the tungsten-molybdenum alloy steel materials can resist high temperature of more than 1200 ℃ due to high temperature in the smelting furnace.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. A wind hole drill rod for a converter is characterized in that: the air hole drill rod for the converter comprises a drill rod, a working end and a fixed end; the fixed end is in a cone structure and is fixed at the left end of the drill rod; the working end is riveted with the inside of the right end of the drill rod and welded with the outside, and the end head of the working end is of a cone structure.

2. The air hole drill rod for the converter according to claim 1, wherein: the fixed end is welded with the drill rod or is of an integrated structure.

3. The air hole drill rod for the converter according to claim 1, wherein: the center of the right end of the drill rod is provided with a riveting hole, the center of the left end of the working end is provided with a riveting rod matched with the riveting hole, the working end is riveted with the inside of the drill rod through the riveting rod and the riveting hole, and the outside of the drill rod is welded.

4. The air hole drill rod for the converter according to claim 1, wherein: the taper height a of the fixed end is larger than 25mm, and the diameter of the left end face is 42 mm.

5. The air hole drill rod for the converter according to claim 1, wherein: the length of the drill rod is 1900 mm-2300 mm.

6. The air hole drill rod for the converter according to claim 1, wherein: the diameter of the right end face of the conical end head of the working end is 36 mm.

7. The air hole drill rod for the converter according to claim 1, wherein: the drill rod is made of hexagonal steel with the diameter of 25 mm.

8. The air hole drill rod for the converter according to claim 1, wherein: the material of the working end is tungsten-molybdenum alloy steel.