CN211999793U - Blast furnace cooling wall - Google Patents
Blast furnace cooling wall Download PDFInfo
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- CN211999793U CN211999793U CN202020294819.4U CN202020294819U CN211999793U CN 211999793 U CN211999793 U CN 211999793U CN 202020294819 U CN202020294819 U CN 202020294819U CN 211999793 U CN211999793 U CN 211999793U
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- blast furnace
- cooling wall
- stave
- dovetail
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Abstract
The utility model discloses a blast furnace stave relates to metallurgical equipment and makes technical field, including the stave body, interval arrangement has dovetail groove on the stave body hot side, the interval is provided with anchor assembly in the dovetail groove, adjacent two in the dovetail groove anchor assembly staggers and sets up the last pouring of stave body hot side have with the stave body with anchor assembly becomes a holistic steel fibre pouring bed of material. Compared with the prior art, the utility model discloses pouring construction simple process, it prevents to produce the accumulative error to pour into a whole, can avoid the steel fibre casting material layer to combine insecure, loose and the obscission with the cooling wall body, is favorable to the transporting and the installation of cooling wall, and the stability of hanging the sediment ability reinforce and the cinder of steel fibre casting material layer can be guaranteed.
Description
Technical Field
The utility model belongs to the technical field of metallurgical equipment manufacturing technology and specifically relates to a stave cooler for blast furnace bosh B1 section to shaft upper portion R2 section.
Background
The blast furnace stave is an important cooling component in the blast furnace, is installed in a furnace body, a furnace waist, a furnace belly, a furnace hearth and other parts of the blast furnace, bears high temperature, also bears abrasion of furnace burden, erosion of slag and scouring of gas flow, has to have good comprehensive performances such as heat strength, thermal shock resistance, rapid cooling and rapid heating resistance and the like, and is generally embedded with refractory bricks on the stave. The existing blast furnace cooling wall comprises a cooling wall body and an inlaid brick inlaid on the hot surface of the cooling wall body, wherein dovetail grooves are arranged on the hot surface of the cooling wall body at intervals, and the inlaid brick is provided with dovetail tenons matched with the dovetail grooves. The blast furnace cooling wall has the following defects in production: 1. the brick inlaying and the cooling wall body cannot be integrally formed for construction, the brick inlaying gaps are more, the brick gaps are easy to generate accumulated errors, and the brick inlaying and building construction process is complex. 2. The cooling wall has high requirements on stability in the process of transportation and installation, and the phenomena of infirm, loose and falling off are easy to occur in the inlaid bricks. 3. The slag adhering capacity of the inlaid bricks is poor and the stability of slag crust is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem of providing a blast furnace cooling wall, which can solve the problems that the prior blast furnace cooling wall has more brick embedding seams, the brick seams are easy to generate accumulated errors, and the brick embedding and building construction process is complicated; the phenomena of insecurity, looseness and falling off easily occur to the inlaid bricks, the slag hanging capability of the inlaid bricks is poor, and the stability of slag crust is difficult to ensure.
In order to solve the above problem, the utility model discloses a technical scheme is: the blast furnace cooling wall comprises a cooling wall body, dovetail grooves are arranged on the hot surface of the cooling wall body at intervals, anchoring parts are arranged in the dovetail grooves at intervals, the anchoring parts in two adjacent dovetail grooves are arranged in a staggered manner, and a steel fiber casting material layer which is integrated with the cooling wall body and the anchoring parts is cast on the hot surface of the cooling wall body.
In the above technical solution of the cooling wall of the blast furnace, more specific technical solutions may also be: the anchor assembly have by the bar steel sheet curved system form and with dovetail type recess assorted forked tail is protruding, two relative inclined plate portion that set up are outwards bent respectively to the bellied opening part both sides of forked tail, two the contained angle is alpha between the inclined plate portion, the bellied opening part both sides of forked tail are connected through supporting the billet.
Further, set up in same in the dovetail type recess anchor assembly passes through fixed billet connection, fixed billet connect in the bellied bottom of forked tail, fixed billet central line with the central line of dovetail type recess coincides basically.
Furthermore, the arrangement of the anchoring parts is characterized in that three anchoring parts are arranged in one dovetail groove, two anchoring parts are arranged in the adjacent dovetail groove in an alternating manner, and the distance between every two anchoring parts is equal.
Furthermore, an included angle alpha between the two inclined plate parts is 55-65 degrees.
Further, the thickness B of the steel fiber casting material layer is 120-180 mm.
Since the technical scheme is used, compared with the prior art, the utility model following beneficial effect has:
1. the utility model discloses a steel fibre pouring material becomes a whole with the cooling wall body pouring, utilizes anchor assembly to prevent that the steel fibre pouring material from appearing collapsing before the shaping with the cooling wall body combines, makes the material shrink evenly avoid forming big and concentrated crackle simultaneously, and the intensity and the bonding steadiness of increase steel fibre pouring material guarantee that the steel fibre pouring material forms the whole of fine and close high strength with the cooling wall body, possesses the thermal stress effect when resisting the interior production of stove, and then makes the steel fibre pouring material possess the fashioned condition of flowing automatically. The pouring construction process is simple, the steel fiber pouring material layer and the cooling wall body are integrally poured to prevent accumulative errors, the phenomena of infirm combination, looseness and falling-off of the steel fiber pouring material layer and the cooling wall body can be avoided, the pouring and the installation of the cooling wall are facilitated, the slag hanging capacity of the steel fiber pouring material layer is high, and the stability of slag crust can be guaranteed.
2. Anchor member inlays and be equipped with less bending strength in dovetail type recess, and the contained angle is alpha between its two relative sloping plate portions that set up, and the opening is under the action of gravity of steel fibre pouring material between two sloping plate portions, and anchor member does benefit to the produced pretightning force of dovetail type recess and stabilizes, and the support billet is connected and is carried out dual pretension in the bellied opening part both sides of forked tail and prevent to warp. The structure is simple, the manufacturing cost is low, and the steel fiber casting material layer can be firmly combined with the cooling wall body.
3. The anchoring parts arranged in the same dovetail groove are connected through a fixed steel bar, the fixed steel bar is connected to the bottom of the dovetail protrusion, and the central line of the fixed steel bar is basically superposed with the central line of the dovetail groove; the anchoring parts are fixed in series through the fixing steel bars, so that the bonding strength of the steel fiber casting material layer and the cooling wall body is further increased.
4. Arranging three anchoring parts in a dovetail groove, arranging two anchoring parts in the adjacent dovetail groove alternately, and enabling the distance between every two anchoring parts to be equal; the anchoring parts are reasonably arranged, so that the steel fiber casting material and the cooling wall body are further ensured to form a compact high-strength whole.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a top view of an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an anchor member in an embodiment of the present invention.
Detailed Description
The invention will be described in more detail with reference to the following embodiments:
example 1
As shown in fig. 1 and 2, the cooling wall of the blast furnace comprises a cooling wall body 1, dovetail grooves are arranged on the hot surface of the cooling wall body 1 at intervals, anchoring parts 3 are arranged in the dovetail grooves at intervals, the anchoring parts 3 in two adjacent dovetail grooves are staggered, the anchoring parts 3 arranged in the same dovetail groove are connected in series by welding fixed steel bars 4, a steel fiber casting material layer 2 which is integrated with the cooling wall body 1 and the anchoring parts 3 is cast on the hot surface of the cooling wall body 1, and the thickness B of the steel fiber casting material layer 2 is 120 mm. The arrangement of the anchoring parts 3 is that three anchoring parts 3 are arranged in one dovetail groove, two anchoring parts are arranged in the adjacent dovetail groove alternately, and the distance between every two anchoring parts 3 is equal.
The anchoring part 3 shown in fig. 3 is provided with a dovetail protrusion 3-1 which is formed by bending a strip steel plate and is matched with a dovetail groove, two sides of the opening of the dovetail protrusion 3-1 are respectively bent outwards to form two inclined plate parts 3-2 which are oppositely arranged, the included angle alpha between the two inclined plate parts 3-2 is 55 degrees, and two sides of the opening of the dovetail protrusion 3-1 are connected by welding through supporting steel bars 3-3. The fixed steel bar 4 is welded at the bottom of the dovetail protrusion 3-1, the central line of the fixed steel bar 4 is basically superposed with the central line of the dovetail groove, and the length of the fixed steel bar 4 is basically equal to that of the dovetail groove. The support steel bars 3-3 and the fixing steel bars 4 of this embodiment are round steel.
During manufacturing, the cooling wall body 1 from the B1 section of the blast furnace belly to the R2 section of the upper part of the furnace body is horizontally placed on a special rack, the dovetail-shaped groove faces upwards, the water cooling pipe faces downwards, and the dovetail-shaped groove is cleaned up. Bending the strip steel plate to form a dovetail protrusion 3-1 and two inclined plate parts 3-2, and then placing the dovetail protrusion 3-1 into the dovetail groove to be tightly attached to the dovetail groove. And horizontally placing the supporting steel bars 3-3 at the opening of the dovetail protrusion 3-1 and fixing the supporting steel bars with the two sides of the dovetail protrusion 3-1 by spot welding. The fixed steel bar 4 and the bottom of the dovetail protrusion 3-1 of the anchor part 3 in the same dovetail groove are connected in series and fixed by spot welding, and the fixed steel bar and the bottom of the dovetail protrusion 3-1 can not be welded to the cooling wall body 1 during spot welding. After all the anchoring parts 3 are installed, one anchoring part 3 is randomly selected to hang a steel wire rope to be lifted, so that the cooling wall body 1 is slightly moved, and the anchoring part 3 cannot be lifted off the ground, and is ensured to be pre-tightened in the dovetail-shaped groove without loosening and falling. Then pouring the steel fiber casting material to keep the external dimension of the steel fiber casting material layer 2 parallel to the external dimension of the cooling wall body 1; the steel fiber castable is used up within a specified time after being proportioned, and the residual material cannot be used after being agglomerated.
The utility model discloses a steel fibre pouring material becomes a whole with the pouring of cooling wall body 1, utilize anchor assembly 3 to prevent that the steel fibre pouring material from appearing collapsing before combining the shaping with cooling wall body 1, make the material shrink evenly avoid forming big and concentrated crackle simultaneously, increase the intensity and the bonding steadiness of steel fibre pouring material, guarantee that steel fibre pouring material and cooling wall body 1 form the whole of fine and close excellence, possess the thermal stress effect when resisting production in the stove, and then make the steel fibre pouring material possess the fashioned condition of flowing automatically. The pouring construction process is simple, the pouring is integrated, accumulated errors are prevented, the phenomena that the steel fiber pouring material layer 2 and the cooling wall body 1 are not firmly combined, loosened and fallen can be avoided, the pouring and the installation of the cooling wall are facilitated, the slag hanging capacity of the steel fiber pouring material layer 2 is high, and the stability of slag crust can be guaranteed.
Example 2
The present embodiment is different from embodiment 1 in that: the thickness B of the steel fiber casting material layer 2 is 180mm, and the included angle alpha between the two inclined plate parts 3-2 is 65 degrees. The remaining technical features are the same as those of example 1.
Example 3
The present embodiment is different from embodiment 1 in that: the thickness B of the steel fiber casting material layer 2 is 150mm, and the included angle alpha between the two inclined plate parts 3-2 is 60 degrees. The remaining technical features are the same as those of example 1.
Claims (8)
1. The utility model provides a blast furnace stave, including stave body (1), interval arrangement has dovetail recess on stave body (1) hot face, its characterized in that: anchoring parts (3) are arranged in the dovetail grooves at intervals, the anchoring parts (3) in two adjacent dovetail grooves are arranged in a staggered manner, and a steel fiber casting material layer (2) which is integrated with the cooling wall body (1) and the anchoring parts (3) is cast on the hot surface of the cooling wall body (1).
2. The blast furnace stave of claim 1 wherein: anchor part (3) have by the bar steel sheet curved system form and with dovetail type recess assorted forked tail is protruding (3-1), the opening part both sides of forked tail arch (3-1) are outwards bent respectively into two swash plates (3-2) of relative setting, two the contained angle is alpha between swash plate (3-2), the opening part both sides of forked tail arch (3-1) are connected through supporting billet (3-3).
3. The blast furnace stave of claim 2 wherein: set up in the same in the swallow-tail type recess anchor assembly (3) are connected through fixed billet (4), fixed billet (4) connect in the bottom of forked tail arch (3-1), fixed billet (4) central line with the central line of swallow-tail type recess coincides basically.
4. The blast furnace stave of claim 1 or 2 or 3 wherein: the arrangement of the anchoring pieces (3) is characterized in that three anchoring pieces (3) are arranged in one dovetail groove, two anchoring pieces are arranged in the dovetail groove adjacent to the dovetail groove in an alternating manner, and the distance between every two anchoring pieces (3) is equal.
5. The blast furnace stave of claim 2 or 3 wherein: an included angle alpha between the two inclined plate parts (3-2) is 55-65 degrees.
6. The blast furnace stave of claim 1 or 2 or 3 wherein: the thickness B of the steel fiber casting material layer (2) is 120-180 mm.
7. The blast furnace stave of claim 4 wherein: the thickness B of the steel fiber casting material layer (2) is 120-180 mm.
8. The blast furnace stave of claim 5 wherein: the thickness B of the steel fiber casting material layer (2) is 120-180 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020294819.4U CN211999793U (en) | 2020-03-11 | 2020-03-11 | Blast furnace cooling wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020294819.4U CN211999793U (en) | 2020-03-11 | 2020-03-11 | Blast furnace cooling wall |
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| Publication Number | Publication Date |
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| CN211999793U true CN211999793U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020294819.4U Active CN211999793U (en) | 2020-03-11 | 2020-03-11 | Blast furnace cooling wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197114A (en) * | 2020-03-11 | 2020-05-26 | 广西柳州钢铁集团有限公司 | Blast furnace cooling wall |
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2020
- 2020-03-11 CN CN202020294819.4U patent/CN211999793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197114A (en) * | 2020-03-11 | 2020-05-26 | 广西柳州钢铁集团有限公司 | Blast furnace cooling wall |
| CN111197114B (en) * | 2020-03-11 | 2024-02-06 | 广西柳州钢铁集团有限公司 | Blast furnace cooling wall |
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