KR101586911B1 - Tuyere device for furnace and disjointing method of the same - Google Patents

Abstract

According to the present invention, a lug protruding from the rear end of the main body is provided so as to be able to disassemble the main body from the blast furnace by pulling the main body from the outside of the blast furnace, The trowel for a blast furnace is provided.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a method for dismantling a trowel for a blast furnace,

The present invention relates to a blast furnace tundish and a tundish breakdown method.

The tuyeres used in blast furnaces are formed in the circumferential direction according to the contents of the blast furnace. The hot air heated in the hot air path is injected into the blast furnace through a blower pipe and a blow pipe. The tuyere is a facility of circulating cooling water to withstand the high temperature inside the cylindrical casting mold composed of the cooling channel of dual structure made of pure copper.

In the case of tungsten, it is a facility to be replaced for maintenance and repair after a certain period of time because it is subject to wear due to heat inside the blast furnace, pulverized coal, and falling charge. In the case of an abnormal situation in the blast furnace, Should be.

A related art is disclosed in Korean Patent Registration No. 10-1366536 (Registered on Feb. 28, 2014, an apparatus for dismantling a furnace tuyere).

According to the embodiment of the present invention, a lug is formed at the rear end of the tongue, so that unnecessary work such as sorting of the contents in the blast furnace is removed when the tongue is replaced, thereby shortening the working time and relieving the tongue from the blast furnace And to provide a method of disassembling a tongue and a tongue.

According to an embodiment of the present invention, there is provided an air conditioner comprising: a main body having a ventilation path in the center; and a lug protruding from the rear end of the main body so as to pull the main body out of the blast furnace, (lug) of the blast furnace is provided.

The lug may include a protrusion formed to protrude from the main body and a receiving groove formed in the protrusion and capable of receiving the hook so that the main body can be pulled from the outside by hooking the hook.

The lugs may be spaced apart in pairs.

At this time, each of the receiving recesses may be formed such that a part of the facing surfaces of the protruding portions are depressed from the upper portion so that the hook can be inserted and fastened at the upper portion.

Further, according to another embodiment of the present invention, it may include a step of fastening a tear breaker to a tug having a lug at a rear end thereof, and pulling out the tear breaker and disassembling the tug from the blast furnace.

Wherein the tug breaker comprises a hook at an end, the lug comprising: a protrusion formed to protrude from the body; and a protrusion formed on the protrusion to receive the hook so that the body can be pulled from the outside by hooking the hook. And may include a receiving groove that can be formed.

The lugs may be spaced apart in pairs.

Wherein each of the receiving recesses has a hook

A part of the opposed surfaces of the protrusions may be formed to be depressed from above.

According to the embodiments of the present invention, a lug is formed at the rear end of the tuyere using the blast furnace tuyere and the tuyere dismantling method, so that unnecessary work such as cleaning up the contents in the blast furnace is removed at the time of replacing the tuyere, And the tuyere can be reliably dismantled from the blast furnace.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view of a blast furnace for a blast furnace according to an embodiment of the present invention; FIG.
2 is a view showing dismantling a blast furnace tuyere according to an embodiment of the present invention from a blast furnace;

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a blast furnace for a blast furnace and a method for dismantling a blast furnace according to the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals designate like or corresponding components A duplicate description thereof will be omitted.

The blast furnace of blast furnace is a facility for injecting hot air heated inside the blast furnace into the blast furnace at a high temperature from a hot blast furnace, and may be abraded by heat in the blast furnace, pulverized coal, and falling charge. Therefore, the blast furnace of the blast furnace should be replaced for maintenance and repair after a certain period of use. In replacing the tongue, the tongue can be dismantled from the blast furnace through manual work by the tool. However, in such a work, the manpower and time are excessively consumed depending on the weight of the tongue, and safety accidents may occur frequently. In addition, when the balloon is dismantled by the mechanized tear-off device, the hook is hooked to the tip of the tornado to pull out the tornado and disassemble the tornado in the blast furnace. There may arise a problem that the Fukugawa furnace is bent or broken by the internal heat during the outdoors work.

In order to solve such a problem, the present invention is capable of disassembling a tug by installing a lug on the rear end of a tug and hanging a hook on the lug, thereby eliminating unnecessary work such as cleaning the inside of the blast furnace in front of the tug, , And can contribute to prevention of safety accidents.

The front end of the tongue referred to herein means a portion toward the inside of the blast furnace when the tongue is installed in the blast furnace, and the rear end portion of the tongue means the portion opposite to the front end of the tongue, that is, toward the outside of the blast furnace. The tapered area increases as the distance from the front end to the rear end increases. That is, tapered from the rear end portion to the front end portion.

FIG. 1 is a view showing a blast furnace for a blast furnace according to an embodiment of the present invention, and FIG. 2 is a view showing a blast furnace for a blast furnace according to an embodiment of the present invention disassembled from a furnace. The tuyere (100) is provided with a ventilation path at the center thereof for injecting the hot air transferred from the hot air path into the interior of the blast furnace. That is, it is formed into a hollow shape so that hot air can be transmitted. A blast furnace tuyere (100) according to the present invention includes a main body and a lug (200). That is, a lug 200 for disassembling the tuyeres 100 is formed at a rear end of the main body and a body having a ventilation path at the center. As shown in FIG. 1, the lug 200 may be formed to protrude from the rear end of the body so as to pull the body from the outside of the blast furnace to disassemble the body from the blast furnace.

At this time, the lug 200 may include the projecting portion 210 and the receiving groove 220. The projecting portion 210 is formed to protrude rearward from the main body. The receiving groove 220 is formed in the projection 210, and can receive the hook and be fastened to the hook. That is, the hook can be hooked to the receiving groove 220 to pull the hook from the outside, thereby separating the tuyere 100 including the main body from the blast furnace.

As shown in Figures 1 and 2, the lugs 200 may be formed on the rear end of the body in pairs. That is, the pair of lugs 200 may be formed symmetrically with respect to the ventilation path passing through the center of the main body. A pair of lugs 200 are formed symmetrically with respect to the ventilation path, so that an externally pulling force can be transmitted to the center of the main body.

2, a receiving groove 220 formed in each of the pair of lugs 200 is formed in such a manner that a part of a surface facing each other from the upper side It can be formed to be recessed. The left and right hooking portions of the tie breaker 300 are inserted into the receiving grooves 220 of the blast furnace 100 in the blast furnace 100, The tongue 100 is pulled out of the tongue breaker 300, and the tongue 100 can be separated from the blast furnace.

At this time, the hydraulic power unit is coupled to the tear breaker 300, so that the tear unit 100 can be automatically disassembled by the machine without manual operation. As a result, it is possible not only to shorten the working time, but also to prevent safety accidents and the like which may occur in manual operation.

According to another embodiment of the present invention, a method of disassembling a tuyere (100) is disclosed. That is, in order to dismantle the tuyere 100, the tuyere breaker 300 is fastened to the tuyere 100 having the lug 200 formed at the rear end thereof, and the tuyere breaker 300 is pulled to pull the tuyere 100 ) Can be dismantled from the blast furnace. At this time, the tie breaker 300 includes a hook at the end portion, and the hook includes the left and right symmetrical hook portions. The hook including the left and right symmetrical hook portions is fastened to the rear end of the tug 100 in which the lug 200 is formed and the disassembling operation is performed. Hereinafter, the tuyere 100 used in the method of disassembling the tuyere 100 is the same as the tuyere 100 described above, and thus a detailed description thereof will be omitted.

The method of disassembling the blast furnace 100 and the tuyere 100 according to the present invention is characterized in that the lug 200 is installed at the rear end of the tuyere 100 to form the tuyere breaker 300 in the lug 200 The walking tongue 100 can be dismantled, thereby eliminating unnecessary work such as cleaning the inside of the blast furnace in front of the tongue 100, thereby shortening the working time and contributing to prevention of safety accidents.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

100: tungus
200: lugs
210:
220: receptacle groove
300: Balloon breaker

Claims (8)

A main body having a ventilation passage at the center; And
And a lug protruding from a rear end of the main body so as to be able to disassemble the main body from the blast furnace by pulling the main body from the outside of the blast furnace,
Preferably,
A protrusion formed to protrude from the main body; And
And a receiving groove formed in the protrusion and capable of receiving the hook so that the hook can be hooked to pull the main body from the outside,
Wherein each of the receiving recesses is formed such that a part of the facing surfaces of the protruding portions are recessed from the upper portion so that the hook can be inserted and fastened at the upper portion.
delete delete delete Tightening a balloon disassembler to a tug having a lug formed at a rear end thereof so as to be spaced apart from each other; And
Pulling out the tundish breaker and disassembling the tundish from the blast furnace,
The tundish breaker includes a hook at its end,
Preferably,
A protrusion formed to protrude from the tongue; And
And a receiving groove formed in the protrusion and capable of receiving the hook so that the tongue can be pulled from the outside by hanging the hook,
Wherein each of the receiving recesses is formed such that a part of a surface of each of the protrusions facing each other is recessed from the top so that the hook can be inserted and fastened at an upper portion thereof.
delete delete delete

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