CN211947101U - Slag iron device for blast furnace taphole - Google Patents

Abstract

The utility model provides a blast furnace taphole slag iron device, including locating two at least couples on the dust excluding hood baffle, can dismantle horizontal hanging in whole the crossbeam of couple, suit in the last slag stopping steel spare of crossbeam with install the lower slag stopping device on big floodgate, the up end of slag stopping device is higher than down the terminal surface of going up slag stopping steel spare. This application is through pushing off the slag steel spare in the installation of dust excluding hood baffle to the lower slag-stopping device of installation on the big floodgate of iron runner, the up end of guaranteeing slag-stopping device down is higher than the lower terminal surface of last slag steel spare, forms the indisputable mouthful front end and blocks the structure completely from this, avoids high temperature slag iron splash, its simple structure, simple to operate, and the simple operation is suitable for and popularizes and applies on a large scale.

Description

Slag iron device for blast furnace taphole

Technical Field

The utility model relates to a blast furnace ironmaking technical field, more specifically say, relate to a blast furnace taphole blocking iron device.

Background

The front iron notch of the blast furnace is a terminal of blast furnace smelting products, the iron notch is used for discharging slag and iron, raw fuels such as iron ore, coke and the like are changed into molten iron and furnace slag after being smelted by the blast furnace, and the molten iron and the furnace slag finally flow out of the iron notch in the form of products of the molten iron and the furnace slag after a series of physical and chemical reactions. The modern blast furnace iron making has the operation characteristics of high temperature and high pressure, in the last stage of slag and iron tapping of an iron notch, under the actions of high temperature and high pressure in a furnace, erosion, scouring and the like of refractory materials of the iron notch, gas in the furnace can be sprayed out from the iron notch and carries high-temperature iron slag to be sprayed to the front of the iron notch. A hydraulic gun is used for blocking the taphole in front of the furnace to prevent the high-temperature slag iron from splashing.

At present, a dust hood for removing dust in front of a taphole is arranged in front of the taphole, but a corresponding slag iron blocking device is lacked, so that the taphole is suddenly blown in the last stage of slag tapping or under special conditions in the tapping process of a blast furnace, high-temperature coal gas in the furnace carries high-temperature slag iron to be sprayed to the front of the taphole for 3-10m or even farther, and burning accidents and equipment damage accidents in the area near the taphole are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a blast furnace taphole slag iron device constitutes in the taphole front end and keeps off the structure completely, has reduced incident emergence probability such as unexpected burn and scald, equipment damage, has promoted the production security.

The utility model provides a blast furnace taphole slag iron device, including locating two at least couples on the dust excluding hood baffle, can dismantle horizontal hanging in whole the crossbeam of couple, suit in the last slag stopping steel spare of crossbeam with install in the lower slag stopping device of big floodgate, the up end of slag stopping device is higher than down the terminal surface of going up slag stopping steel spare.

Preferably, the upper slag blocking steel part comprises a plurality of transverse sleeves, and a plurality of vertical blocking pieces are welded on the peripheral surface of each transverse sleeve side by side.

Preferably, the cross section of the lower slag stopping device is of an inverted trapezoidal structure.

Preferably, the vertical stopper is a hollow steel pipe, a solid steel pipe or a baffle.

Preferably, the lower slag blocking device is of an integrated structure and is formed by welding steel plates or pouring heat-resistant concrete.

Preferably, all of said hooks are welded to said dust hood baffle.

Preferably, the hook is a U-shaped hook or an arc-shaped hook.

Compared with the prior art, the utility model provides a blast furnace taphole keeps off slag iron device, through installing two at least couples on taphole dust excluding hood front end baffle, and with the crossbeam suit in last pushing off the slag steel inside, hang last pushing off the slag steel through the crossbeam and hang on whole couples, constitute upper portion and block the structure, meanwhile, keep off the slag device under the installation on the big floodgate of iron runner, the up end of guaranteeing to keep off the slag device down is higher than the lower terminal surface of last pushing off the slag steel, form the taphole front end and block the structure completely from this, prevent that the blast furnace from being at the high-temperature coal gas of tapping in-process and the indisputable splash injury people, guarantee equipment and blast furnace front worker safety work, prevent equipment damage, accidents such as unexpected burns and scalds. The application provides a blast furnace taphole slag iron device, simple structure, processing is convenient, and low cost is suitable for popularization and application on a large scale.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of a slag iron blocking device for a blast furnace taphole provided by the present invention;

fig. 2 is a right side view of fig. 1.

Wherein, 1-dust hood baffle, 2-hook, 3-crossbeam, 4-lower slag blocking device, 5-horizontal sleeve, 6-vertical blocking piece, and 7-big brake.

Detailed Description

The core of the utility model is to provide a blast furnace taphole slag iron device, prevent effectively that the high temperature slag iron of blast furnace taphole splash from leading to the fact bodily injury and equipment damage accident to taphole the place ahead region, improve the security of operation before the furnace, stopped the emergence of potential safety hazard.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and 2, fig. 1 is a schematic view of a slag iron blocking device for a blast furnace taphole according to the present invention; fig. 2 is a right side view of fig. 1.

The utility model provides a slag blocking iron device for a blast furnace taphole, which mainly comprises at least two hooks 2, a beam 3, an upper slag blocking steel piece and a lower slag blocking device 4, wherein the hooks 2 are used for hoisting an assembly part consisting of the beam 3 and the upper slag blocking steel piece, the structure of the beam 3 can be diversified, preferably solid round steel bars or hollow round steel tubes, the material is convenient to obtain, the source is wide, the slag blocking iron device can be used only by simple cutting, and the production cost is lower; the upper slag blocking steel part is provided with a sleeving part and a blocking part, the sleeving part is of a hollow structure, the inner diameter of the sleeving part is slightly larger than the outer diameter of the cross beam 3, so that the cross beam 3 can smoothly penetrate into the sleeving part, and the blocking part is arranged on the sleeving part and has certain strength and hardness; the lower slag stopping device 4 is arranged on the large brake 7, the lower slag stopping device 4 can be provided with a falling platform, the self weight of the lower slag stopping device 4 is directly located on the large brake 7, and the lower slag stopping device can also be detachably arranged on the large brake 7 through foundation bolts.

Each hook 2 is fixedly arranged on the dust hood baffle 1 in advance, preferably arranged in the middle of the dust hood baffle 1, and the hanging positions of the hooks 2 are ensured to be arranged on the same straight line; during the installation, with 3 cartridge of crossbeam among the inner chamber of last pushing off the slag steel spare, then transversely hang the dress on whole couple 2 with last pushing off the slag steel spare through crossbeam 3, because last pushing off the slag steel spare has certain weight, iron notch jetting causes last pushing off the slag steel spare pivoted phenomenon when having avoided slagging tap, goes up the installation of pushing off the slag steel spare firmly, can form effectual last barrier structure. In addition, in order to realize the all-round effective protection to splash high temperature slag iron, the up end of lower slag trap 4 should be higher than the lower terminal surface of last slag trap steel spare to form and block the structure completely, reach the purpose of pushing off the sediment completely. In addition, the detachable mounting structure is convenient for mounting and dismounting the upper slag stopping steel piece and the lower slag stopping device 4, and the movement is flexible; that is, before tapping, the dust hood provided with the beam 3 and the upper slag blocking steel piece is moved to the position above the taphole along the guide rail, the lower slag blocking device 4 is moved to the large gate 7, the upper slag blocking steel piece and the lower slag blocking device 4 are ensured to be in seamless connection, and a complete slag blocking structure is realized; after the iron is discharged and the iron opening is blocked, the dust removing cover is transversely moved to the outside along the guide rail, and the lower slag blocking device 4 is removed from the upper part of the large brake 7, so that the work of cleaning an iron runner by stokehole workers is not influenced.

The utility model provides a blast furnace taphole slag iron device, simple structure, the installation preparation is convenient, and the simple operation can be accomplished by one-man operation, has ensured blast furnace stokehold staff's personal safety and equipment safety, effectively prevents taphole slag iron splash, improves the security of stokehold operation.

Preferably, the hook 2 is a U-shaped hook 2 or an arc-shaped hook 2 on the market, and the hook 2 is welded on the dust hood baffle 1 in consideration of improving the installation firmness.

In a specific embodiment, the upper slag-stopping steel part comprises a plurality of transverse sleeves 5 and a plurality of vertical stoppers 6, the transverse sleeves 5 are hollow steel pipes with the inner diameter of 5-20 mm and the wall thickness of the steel pipes of 1-5 mm, the number of the transverse sleeves 5 is 3-6, the length of each vertical stopper 6 is 50% + (30-100mm) of the height from the lower edge of the dust hood baffle 1 to the plane of the furnace platform, the length of each transverse sleeve 5 is more than 3 times of the outer diameter of the transverse sleeve, the number of the vertical stoppers 6 is set according to the length of the transverse sleeve 5, the vertical stoppers 6 are ensured to be welded on the transverse sleeves 5 side by side, each vertical stopper 6 can be a hollow steel pipe, a solid steel pipe or a baffle, the vertical stoppers 6 are arranged on the outer peripheral surface of the transverse sleeve 5 side by side and tightly, and the vertical stoppers 6 and the transverse sleeves 5 can be welded or connected through bolts. Therefore, the transverse sleeve 5 and the plurality of vertical stoppers 6 form a group of upper stoppers which are sleeved on the cross beam 3 side by side, the weight of the upper slag blocking steel part is light, the load bearing of the hook 2 is reduced, the dust hood is prevented from being deformed by gravity, and the installation is convenient.

In another embodiment, the cross-sectional shape of the lower slag blocking device 4 is an inverted trapezoid structure and is formed by welding steel plates or pouring heat-resistant concrete, the mounting portion is located on the gate 7, the two blocking portions are oppositely arranged in an outward inclined manner, the thickness of the lower slag blocking device 4 is more than 10mm, the height of the lower slag blocking device is 40-60% of the height from the lower edge of the dust hood baffle 1 to the plane of the furnace platform, after mounting, the sum of the height of the upper slag blocking steel part and the height of the lower slag blocking device 4 is larger than the height from the lower edge of the dust hood baffle 1 to the plane of the furnace platform, high-temperature slag iron is prevented from being sprayed, and the purpose of blocking slag is. Lower pushing off slag device 4 formula structure as an organic whole, that is, lower pushing off slag device 4 is through welding or heat-resisting concrete pouring shaping to promote lower pushing off slag device 4's installation intensity, prolong its life.

The blast furnace taphole slag iron device provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (7)

1. The utility model provides a blast furnace taphole pushing off slag iron device, its characterized in that, including locating two at least couples (2) on dust excluding hood baffle (1), can dismantle horizontal hanging in whole crossbeam (3) of couple (2), suit in the last pushing off slag steel spare of crossbeam (3) and install in lower pushing off slag device (4) of big floodgate (7), the up end of pushing off slag device (4) is higher than down the terminal surface of going up pushing off slag steel spare down.

2. The blast furnace taphole iron apparatus according to claim 1, characterized by the upper slag-stopping steel piece comprises a plurality of horizontal sleeves (5), and a plurality of vertical stoppers (6) are welded side by side on the outer peripheral surface of each horizontal sleeve (5).

3. The blast furnace taphole iron arrangement according to claim 1 or 2, characterized by the lower slag stopper (4) having an inverted trapezoidal cross-section.

4. The blast furnace taphole slag iron apparatus according to claim 2, characterized by the vertical stoppers (6) being hollow steel pipes, solid steel pipes or baffles.

5. The blast furnace taphole iron apparatus according to claim 3, characterized by the lower slag stopper (4) being a one-piece structure, welded by steel plates or poured by heat-resistant concrete.

6. The blast furnace taphole iron apparatus according to claim 1, characterized by all of the hooks (2) welded to the dust hood baffle (1).

7. The blast furnace taphole iron apparatus according to claim 1, characterized by the hook (2) being a U-shaped hook or an arc hook.

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