CN212800407U

CN212800407U - Slag skimmer for blast furnace fire resistance

Info

Publication number: CN212800407U
Application number: CN202021858674.2U
Authority: CN
Inventors: 付振华; 白吉林; 吕雪艳; 刘玉峰; 陈会珍
Original assignee: Gongyi Haoyang Burden Co ltd
Current assignee: Gongyi Haoyang Burden Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-03-26
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a skimmer for blast furnace fire resistance, including the runner passageway at the bottom of, the inside runner passageway at the bottom of the ditch and install the water conservancy diversion ditch that is the inclined plane and lay in the runner passageway, the runner passageway top surface edge of water conservancy diversion ditch top installs the skimmer main part, and the skimmer main part forms by first refractory part, backward flow brick and the combination of second refractory part in proper order, the guide plate is installed with the help of stop gear to a side surface of second refractory part, and the bottom downwardly extending of guide plate, the top combination of first refractory part, backward flow brick and second refractory part forms skimming mechanism. The utility model discloses a be provided with a series of structures for this skimmer for blast furnace is fire-resistant can carry out stagnant flow operation to the tapping passageway, and adjust stagnant flow effect, when carrying out the derivation of stagnant flow to the slag, can realize the effect of piling up of slag, avoid or reduce the skimming loss that causes the molten iron in-process, improve actual slagging-off quality.

Description

Slag skimmer for blast furnace fire resistance

Technical Field

The utility model relates to the technical field of refractory materials, in particular to a slag skimmer for blast furnace fire resistance.

Background

The skimmer (commonly called sand mouth) is a place for separating slag and molten iron in a tapping process, and is generally made of refractory materials, and during actual work, because the density of the slag and the molten iron coming out of the iron mouth is different, the slag floats on the molten iron, and after the skimmer is filled with the molten iron, because the small well is communicated with the main iron runner through the channel, the molten iron can pass through, and the slag is blocked by the baffle plate and cannot flow into the small well, so that the slag-iron shunting work is completed.

The existing skimmer is used in practice, when the actual baffle plate is used, the skimmer is easy to receive different liquid levels and has different use effects, when the liquid level is not shunted properly, a small amount of molten iron is easily contained in the molten slag, and during subsequent operation, the molten slag needs to be treated again so as to be convenient for recycling the molten iron.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slag skimmer for blast furnace fire resistance to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a skimmer for blast furnace is fire-resistant, includes the runner passageway at the bottom of the ditch, the inside runner passageway at the bottom of the ditch and installs the water conservancy diversion ditch that is the inclined plane and lays in the runner passageway, the skimmer main part is installed to the runner passageway top surface edge of water conservancy diversion ditch top, and the skimmer main part forms by first refractory part, backward flow brick and the combination of second refractory part in proper order, the guide plate is installed with the help of stop gear to a side surface of second refractory part, and the bottom downwardly extending of guide plate, the top combination of first refractory part, backward flow brick and second refractory part forms skimming mechanism.

Preferably, stop gear includes spacing groove and card post, and the card post is installed in a side surface of guide plate, and the spacing groove setting is in the top surface edge of second refractory part, and spacing groove downwardly extending.

Preferably, a lifting ring is mounted at the top end of the second refractory piece.

Preferably, the skimming mechanism includes backward flow chamber and delay chamber, and the backward flow chamber sets up on the top surface of backward flow brick, and the delay chamber sets up respectively at the top surface of the first fire-resistant piece of backward flow chamber both sides and the fire-resistant piece of second, and the delay chamber switches on downwards, and a side surface edge on delay chamber top is provided with the sloping platform, and the sloping platform downwardly extending to the backward flow intracavity.

Preferably, the bottom surface of backward flow chamber is provided with the slag notch, and the slag notch extends to the backward flow brick surface.

Preferably, the inside spacing of slag notch is installed the liquid level brick, and the liquid level brick outwards extends through the slag notch, and liquid level brick surface mounting has the accuse brick.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the slag skimmer for blast furnace fire resistance has the bottom end lower than the whole height of the slag skimmer through the guide plate, when the slag skimmer can carry out certain retention and blocking effects on the molten iron passing through the lower part of the slag skimmer, the slag mixed in the molten iron is subjected to certain flow limiting effect and is actually positioned below the slag skimmer for a longer time, can conveniently improve the actual quality of skimming, and can be combined with the clamping column for use through the limiting groove, the clamping column and the clamping column can be mutually clamped and limited, and the clamping column and the limiting groove can be assembled when the guide plate is assembled by means of the fastening and interference fit of friction force, the whole guide plate is fixedly installed, and when the position of the guide plate is adjusted, the clamping column can be pushed downwards to move relative to the limiting groove, and then change guide plate actual position, realize the effect of regulation to when needing to dismantle the change guide plate in follow-up, can break into pieces the card post through the spacing groove and dismantle, satisfy the in-service use demand.

2. This slag skimmer for blast furnace is fire-resistant through detaining the chamber, can switch on from top to bottom for carry out pile and backward flow operation to the slag of skimming out, and through the sloping platform, the slag of top direct guide gets into the backward flow intracavity portion and converges, makes the whole height of slag escape way great, avoids under the lower condition in escape way position, makes the slag carry the molten iron discharge jointly, and then reduces the unnecessary loss to the molten iron.

3. This slag skimmer for blast furnace is fire-resistant, through the slag notch, use as slag notch exhaust passageway, the actual position is higher, and combine to use with the liquid level brick, can carry out the shutoff to the slag notch, and then raise the actual sediment height of arranging of slag notch, float the characteristic on the molten iron surface with the help of the slag, can carry out certain delay effect to the molten iron that gets into, derive the slag alone, can be convenient for follow-up carry out solitary recovery operation to the molten iron, and control brick uses jointly, actual control brick top surface flushes with liquid level brick surface, quick downward flow's surface use when can regard as slag notch discharge slag, reduce the erosion of slag to liquid level brick surface, and service life is prolonged.

Drawings

FIG. 1 is a schematic view of the internal structure of the whole assembly of the present invention;

FIG. 2 is a schematic view of the top end of the skimmer of the present invention;

fig. 3 is a schematic view of the structure of the deflector of the present invention.

In the figure: 1. the bottom of the ditch; 2. a tapping aisle; 3. a baffle; 4. a liquid level brick; 5. a slag outlet; 6. a retention chamber; 7. a sloping table; 8. a first refractory component; 9. a flow guide groove; 10. a hoisting ring; 11. a limiting groove; 12. clamping the column; 13. a second refractory component; 14. controlling the brick; 15. a reflux cavity; 16. and (4) reflowing the bricks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, the skimmer for blast furnace fire resistance of the embodiment includes a channel bottom 1, a tapping passageway 2 inside the channel bottom 1, and a diversion trench 9 installed in the tapping passageway 2 and arranged in an inclined plane, wherein the tapping passageway 2 is used as a passage for molten iron to flow in and out, a skimmer main body is installed at the edge of the top end surface of the tapping passageway 2 above the diversion trench 9, the diversion trench 9 can be combined with the bottom end surface of the skimmer main body above due to a certain inclined plane to form a downward and suddenly reduced inclined plane passage for conducting diversion operation on the molten iron and the molten slag, and the skimmer main body is formed by combining a first refractory piece 8, a backflow brick 16 and a second refractory piece 13 in sequence, the first refractory piece 8, the backflow brick 16 and the second refractory piece 13 are installed in a limiting assembly manner to form the skimmer, the skimmer is installed in a limiting manner by an external component as a whole, a diversion plate 3 is installed on one side surface of the second refractory piece 13 by means of a limiting mechanism, the bottom downwardly extending of guide plate 3, its bottom position is less than the holistic position height of skimmer, can carry out certain delay to the molten iron through the skimmer below and block when the effect for the slag of mixing in the molten iron receives the effect of certain current-limiting, and the actual longer time is in the below of skimmer, can be convenient for improve the actual quality of skimming, and the top combination of first refractory part 8, backward flow brick 16 and second refractory part 13 forms the skimming mechanism, can guide and derive the slag that the skimming obtained.

It is specific, stop gear includes spacing groove 11 and card post 12, a side surface at guide plate 3 is installed to card post 12, for cylindroid column structure, self coefficient of friction is great, spacing groove 11 sets up the top surface edge at second fire-resistant 13, and spacing groove 11 downwardly extending, the actual degree of depth extensible of spacing groove 11 to the interlude position department of second fire-resistant 13, spacing groove 11 inner wall coefficient of friction is great, during the practical use, card post 12 can block into and form spacingly in spacing groove 11, and make a side surface and the laminating of second fire-resistant 13 of guide plate 3, the molten iron of avoiding being detained overflows through the two clearance.

Further, rings 10 are installed on the top of second refractory 13, and rings 10 are made for heat-resisting metal material and form, can be convenient for the manual work tightly hold or the effort is applyed to hoist and mount part, drive whole second refractory 13 and carry out the up-and-down motion, make things convenient for going on of actual installation and dismantlement operation.

Further, the skimming mechanism comprises a backflow cavity 15 and a retention cavity 6, the backflow cavity 15 is arranged on the top end surface of the backflow brick 16, the backflow cavity 15 is a cavity component similar to a circle, the bottom end of the backflow cavity is not communicated, the retention cavity 6 is respectively arranged on the top end surfaces of the first fireproof part 8 and the second fireproof part 13 on two sides of the backflow cavity 15, the retention cavity 6 is communicated downwards and is actually used as a channel for skimming, similar to a scraper, the slag floating above the molten iron is scraped, the slag is accumulated in the detention cavity 6 and is continuously accumulated upwards under the action of buoyancy, the edge of one side surface of the top end of the detention cavity 6 is provided with an inclined platform 7, the inclined platform 7 extends downwards in an inclined way into the backflow cavity 15, the top end area of the inclined platform 7 is higher, can be used as a channel for guiding out the slag accumulated in the detention cavity 6 and is conveyed to the reflux cavity 15 obliquely and downwards for converging operation, and the inclined platform 7 and the reflux cavity 15 are combined to form a part similar to a bucket shape as a whole.

Furthermore, the bottom surface of the backflow cavity 15 is provided with a slag hole 5, the bottom end of the slag hole 5 is flush with the bottom end of the inner wall of the backflow cavity 15, and the slag hole 5 extends towards the outer surface of the backflow brick 16 and can be used as a discharge channel of accumulated slag.

Further, the inside limited mounting of slag notch 5 has liquid level brick 4, liquid level brick 4 and slag notch 5 fastening cooperation each other, form inseparable effect, carry out the shutoff to slag notch 5, and then raise the height of the actual discharge passage of slag notch 5, float the characteristic on the molten iron surface with the help of the slag, can carry out certain effect of detaining to the molten iron that gets into, derive the slag alone, can be convenient for follow-up carry out solitary recovery operation to the molten iron, liquid level brick 4 outwards extends through slag notch 5, and liquid level brick 4 surface mounting has control brick 14, the top surface of actual control brick 14 flushes with the top surface of liquid level brick 4, when the slag flows out, especially when flowing downwards from the top fast, solution and the surface edge of control brick 14 contact, there is the erosion of solution to liquid level brick 4 to trun into the erosion to control brick 14 surface edge.

The using method of the embodiment comprises the following steps: the whole skimmer is arranged above the diversion trench 9 and is positioned in the upper region of the whole tapping passageway 2, when in actual use, molten iron flows to a channel between the diversion trench 9 and the skimmer through the right side of the tapping passageway 2, in order to fully retain and remove slag in the molten iron, the guide plate 3 can be actually arranged, the guide plate 3 is made of refractory materials by the second refractory piece 13 and the clamping column 12 of the guide plate 3, irreversible deformation is caused during actual extrusion, the guide plate 3 and the second refractory piece 13 can be matched with each other, the clamping column 12 is clamped into the limiting groove 11, the guide plate 3 slowly moves downwards to a proper height, a certain upper closure effect is formed on the interior of the tapping passageway 2 by the guide plate 3, the influence of slag floating on the surface of the molten iron is caused, after the guide plate 3 stagnates the molten iron from the upper part, the slag in the molten iron moves upwards and enters the retention cavity 6, along with the increase of molten iron flow, more and more slag enters the detention cavity 6 and enters the interior of the backflow cavity 15 through the sloping platform 7 to carry out confluence operation, when the backflow cavity 15 is accumulated more and more, residual molten iron is deposited at the bottom end of the inner wall of the backflow cavity 15, the slag crosses the liquid level brick 4 and overflows from the surface of the top end of the control brick 14, in the whole process, in order to improve the stagnation effect, the clamping column 12 can be pushed or knocked downwards, the clamping column 12 and even the whole guide plate 3 move downwards, the position height of the guide plate 3 is further changed, the whole stagnation effect is adjusted, and the actual use requirements are met.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a slag skimmer for blast furnace is fire-resistant, includes that the passageway (2) of tapping of ditch end (1), ditch end (1) inside and install and be water conservancy diversion ditch (9) that the inclined plane laid in tapping passageway (2), its characterized in that: the tapping runner of water conservancy diversion ditch (9) top is said (2) top surface edge and is installed the skimmer main part, and the skimmer main part is formed by first refractory (8), backward flow brick (16) and second refractory (13) combination in proper order, guide plate (3) are installed with the help of stop gear to a side surface of second refractory (13), and the bottom of guide plate (3) extends downwards, the top combination of first refractory (8), backward flow brick (16) and second refractory (13) forms skimming mechanism.

2. The skimmer for blast furnace fire resistance according to claim 1, wherein: stop gear includes spacing groove (11) and card post (12), and a side surface at guide plate (3) is installed in card post (12), and spacing groove (11) set up in the top surface edge of second refractory component (13), and spacing groove (11) downwardly extending.

3. The skimmer for blast furnace fire resistance according to claim 1, wherein: and a lifting ring (10) is arranged at the top end of the second refractory piece (13).

4. The skimmer for blast furnace fire resistance according to claim 1, wherein: the skimming mechanism comprises a backflow cavity (15) and a retention cavity (6), the backflow cavity (15) is arranged on the top surface of a backflow brick (16), the retention cavity (6) is respectively arranged on the top surfaces of a first refractory part (8) and a second refractory part (13) on two sides of the backflow cavity (15), the retention cavity (6) is conducted downwards, a side surface edge on the top end of the retention cavity (6) is provided with an inclined platform (7), and the inclined platform (7) extends downwards into the backflow cavity (15).

5. The skimmer for blast furnace fire resistance according to claim 4, wherein: the bottom surface of backward flow chamber (15) is provided with slag notch (5), and slag notch (5) extend to backward flow brick (16) surface.

6. The skimmer for blast furnace fire resistance according to claim 5, wherein: the inside spacing of slag notch (5) is installed liquid level brick (4), and liquid level brick (4) outwards extend through slag notch (5), and liquid level brick (4) surface mounting has accuse brick (14).