CN201275616Y - Breakout-proof air brick backing brick and locking mechanism - Google Patents
Breakout-proof air brick backing brick and locking mechanism Download PDFInfo
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- CN201275616Y CN201275616Y CNU2008201182685U CN200820118268U CN201275616Y CN 201275616 Y CN201275616 Y CN 201275616Y CN U2008201182685 U CNU2008201182685 U CN U2008201182685U CN 200820118268 U CN200820118268 U CN 200820118268U CN 201275616 Y CN201275616 Y CN 201275616Y
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- air brick
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Abstract
The utility model relates to a pad brick for a molten-steel-leakage-proof air brick, and a locking mechanism. The pad brick of the air brick consists of a refractory material, a thin metal hose, a metal backing, a thick metal tube, a spring, a quick coupling female contact, a wire and a pull ring, wherein, a cavity surrounded by the refractory material is formed by the quick coupling female contact, the spring, the metal backing and a part of the thin metal hose; the quick coupling female contact can move up and down through the support of the spring; the locking mechanism consists of a base, a locking body and a clamping bolt; the base is fixedly mounted on a jacket at the bottom of a molten metal container; the locking body is assembled under the base, and can move up and down through the clamping bolt; and the pad brick of the air brick is fixedly mounted at the bottom of the air brick and a seating brick through the locking body, and in close contact with the air brick and a seating brick. The pad brick and the locking mechanism can effectively reduce the occurring times of the molten-steel-leakage of the air bricks, can be widely applied to the integral and the separate air bricks, can be reused, and has low cost.
Description
Affiliated technical field
The utility model relates to a kind of air brick pad brick and retaining mechanism, belongs to the auxiliary device of molten metal container, particularly relates to a kind of air brick pad brick and retaining mechanism that can reduce the ladle bottom blowing air brick bleed-out accident risk of smelting iron and steel industry.
Background technology
Feed gas stirring molten metal body in molten metal container, quicken to realize metallurgical process, evenly the temperature and the chemical composition of metal liquid promote inclusion removal or control inclusion morphology, are the technology that modern metallurgy industry generally adopts.Being blown into gas in molten metal container can obtain by dual mode, a kind of is to adopt air blow gun, insert the metal liquid operation of blowing from container top, a kind of is to adopt bottom-blown air brick, from container bottom gas is sent in the container, wherein the bottom-blown air brick mode is more cheap, convenient, practical, thereby is widely used.
Bottom-blown air brick is broadly divided into two kinds of structures, and a kind of is that air brick core and brick cup are prefabricated into an integral body, is integral air brick; A kind of to be air brick core and brick cup be two parts independently, during use the air brick core is combined in the brick cup, is the split air brick.The air brick core generally includes brick core body refractory material and is welded on sheet metal around the described refractory material and the metal cover board of an end, and a metal tracheae is connected together with bridge welding, and realization is incorporated into the air brick core with gas.Brick cup is made by refractory material.During air brick work, gas enters the air brick core from the metal tracheae, is blown in the molten metal liquid through the air brick core again.
Retaining mechanism is air brick to be compressed be installed on the described molten metal container, normally makes with metalwork.
Air brick in use, for various reasons, motlten metal liquid may penetrate refractory material, may melt metal cover board, tracheae and the retaining mechanism of air brick under extreme case, cause the high-temperature metal liquid of fusion to leak from container, cause a serious accident.
For solving the problems of the technologies described above, patent documentation ZL200620115249.8 has proposed a kind of integral air brick of anti-bleed-out, comprise air brick core, brick cup, air chamber and metal air supply system, wherein the metal air supply system is made up of one group of thin bend pipe of metal, a check valve and a crude metal pipe.Described air brick can prevent that to a certain extent molten steel from leaking, thereby reduces integral air brick bleed-out risk.But there are following defectives in this technology: (1) this technology only is applicable to integral air brick, is not suitable for the split air brick, and its application limitation is big; (2) because integral air brick is disposable use, the product cost that this technology is made is higher; (3) the metal air supply system of the anti-bleed-out of this technology places integral air brick, must occupy a part of position of air brick, under the certain situation of integral air brick height, has reduced effective use height of air brick, and air brick is low service life; (4) this technology can not prevent the risk of molten steel from revealing between air brick core and the brick cup; (5) this technology can not prevent the bleed-out accident of sinking and to cause because of the air brick core.
Patent documentation ZL200520033642.8 has also proposed a kind of anti-bleed-out device with air brick, it contains brick cup, air brick and retaining mechanism, wherein brick cup is made up of upper and lower brick cup, air brick also is made up of upper and lower air brick, in use, when the fast ablation of last air brick was intact, the ventilative seam of following air brick stopped up, and reaches warning function.The following defectives of the same existence of this technology: (1) complex manufacturing technology, cost is higher; (2) upper and lower brick cup and the disposable use of upper and lower air brick are higher by the product cost that this technology is made; (3) under the certain situation of air brick total height, be divided into air brick up and down, must have reduced effective use height of air brick, can not satisfy the requirement of air brick high life; (4) this technology can not prevent the risk of molten steel from revealing between air brick core and the brick cup.
Summary of the invention
The utility model proposes a kind of reusable air brick pad brick and retaining mechanism that can prevent that molten steel from leaking, not only be applicable to integral air brick, also be applicable to the split air brick.
The technical solution of the utility model comprises a kind of anti-bleed-out air brick pad brick and described pad brick is fixed on retaining mechanism on the ladle involucrum.
Described pad brick comprises pad brick body refractory material, one group of spring, a metal caul, one group of wire, a draw ring and a metal air supply system.
Wherein the metal air supply system is made up of a snap joint female, one group of thin metal hose and a crude metal pipe, and an end of thin metal hose is connected with the snap joint female and communicates, and the other end is connected with the crude metal pipe and communicates; The diameter of thin metal hose is 3～10mm, and quantity determines that according to the required throughput of reality general 4～8, material can be a steel or copper, stainless steel preferably, and thin metal hose can irregularly distribute, but excellent to be distributed as symmetrically.
The one end metallic plate welded seal of wherein snap joint female and crude metal pipe, its diameter is determined according to the required throughput of reality, is generally 20～30mm.
The scalable length 5～20mm of its medi-spring, 1～6 of quantity; One end of spring is connected with the metallic plate that the snap joint female is used to seal, and the other end is connected with metal caul.
Snap joint female, spring, metal caul and parts of fine metal hose are formed a cavity that is surrounded by refractory material, and the snap joint female can move up and down under the support of spring, mobile range 5～20mm.
Wherein one group of end wiry is connected with the clasp of snap joint female, and the other end is connected with a draw ring, but the activity of wire easy on and off.
Pad brick body refractory material and closely contacts between air brick, the brick cup under the installation of retaining mechanism, seals with refractory wass.
Described retaining mechanism and described pad brick are used, and comprise a base, a locking body and one group of fastening bolt.Wherein base is fixedly mounted on the involucrum of molten metal container bottom, locking body be assemblied in described base below, locking body can move up and down by fastening bolt, fastening bolt quantity is not limit, general 2～4.
Compared with prior art, the utlity model has following advantage:
1, air brick pad brick contains one group of thin metal hose, when high-temperature fusant burns air brick metal cover board and tracheae, after entering the pad brick, melt along metal hose when the external leakage, need be through longer time and longer distance, because metal hose is melted and refractory material heat absorption itself, high-temp liquid will be cooled and solidify, thereby reduce risk of leakage.
2, closely contact between pad brick refractory material and air brick, the brick cup, and seal with refractory wass, high-temperature fusant is very difficult from passing through between them, thereby has prevented that retaining mechanism from by the risk that high-temperature fusant burns, having improved anti-bleed-out effect.
3, for integral air brick, the pad brick closely is supported on air brick core bottom, has reduced the risk of sinking to taking place the bleed-out accident because of the air brick core.
4, air brick pad brick and retaining mechanism are reusable, and cost is lower.
5, can be applicable to integral air brick and split air brick simultaneously, the scope of application is wide.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, but not as to qualification of the present utility model.
Fig. 1 is the generalized section of a kind of air brick pad of the utility model brick.
Fig. 2 is the exploded perspective view of a kind of retaining mechanism of the utility model.
Fig. 3 is a kind of assembling schematic diagram of the utility model and integral air brick.
Fig. 4 is a kind of assembling schematic diagram of the utility model and split air brick.
Mark is expressed as among the figure: 1-pad brick body refractory material, the thin metal hose of 2-, the 3-metal caul, the crude metal pipe of the 4-soldered sealing in upper end, the 5-spring, the 6-cavity, the snap joint female of the soldered sealing in 7-lower end, clasp on the 8-snap joint female, the 9-wire, the 10-draw ring, the 11-base, the 12-locking body, the 13-fastening bolt, the 14-pad, the 15-nut, the involucrum of 16-molten metal container bottom, the 17-refractory wass, 18-air brick brick cup, 19-air brick core, 20-snap joint male, 21-metal tracheae, the 22-metal cover board.
The specific embodiment
With reference to Fig. 1, air brick pad brick comprises the crude metal pipe 5 of the snap joint female 7 of pad brick body refractory material 1, a soldered sealing in lower end, one group of spring 5, metal caul 3, one group thin metal hose 2, a soldered sealing in upper end, one group of wire 9 and draw ring 10.One end of thin metal hose 2 is connected with snap joint female 7 and communicates, the other end is connected with crude metal pipe 5 and communicates, one end of spring 5 is connected with snap joint female 7, the other end is connected with metal caul 3, snap joint female 7, spring 5, metal caul 3 and parts of fine metal hose 2 are formed a cavity 6 that is surrounded by refractory material, snap joint female 7 can move up and down under the support of spring, one end of wire 9 is connected with the clasp 8 of snap joint female, the other end is connected with draw ring 10, but wire 9 easy on and off activities.
With reference to Fig. 2, retaining mechanism comprises a base 11, locking body 12, one group of fastening bolt 13 and pad 14 and nut 15.Described base 11 is fixedly mounted on the involucrum of molten metal container bottom, locking body 12 be assemblied in described base 11 below, locking body 12 can move up and down by fastening bolt 13.
With reference to Fig. 3, Fig. 4, air brick pad brick body refractory material 1 is assembled between locking body 12 and air brick brick cup 18, the air brick core 19, the metal tracheae 21 that connects as one with air brick core 19 is realized being connected with snap joint female 7 by snap joint male 20, closely between air brick pad brick body refractory material 1 and integral air brick brick cup 18 and the air brick core 19 contacts and seals with refractory wass 17.During use, crude metal pipe 5 is connected with external source of the gas, and gas enters in the metal bath by crude metal pipe 5, thin metal hose 2, snap joint female 7, snap joint male 20, metal tracheae 21 and air brick core 19, realizes the operation of air blowing stirring molten metal body.After finishing using, unload locking body 12 earlier, drawing draw ring 10 clasp 8 of snap joint female of leaving behind then withdraws from snap joint male 20 to get final product from snap joint female 7.Air brick pad brick and retaining mechanism are reusable.
When air brick core 19 takes place to deteriorate unusually to cause motlten metal liquid down to leak along metal tracheae 21, enter the cavity 6 in the pad brick, owing to closely contact between air brick pad brick body refractory material 1 and the integral air brick brick cup 18 and seal with refractory wass 17, high-temperature fusant is difficult to pass through, thereby has prevented the risk that retaining mechanism is burnt by high-temperature fusant.After high-temperature fusant enters cavity 6, thin metal hose 2 in meeting edge and wire 9 places are seepage outward, because the sub-thread fluid flow is little, the distance that flows, be melted under the acting in conjunction of absorbing heat at metal hose with refractory material itself, high-temp liquid will be cooled and solidify, and stop its further leakage, prevent that motlten metal liquid from leaking into the purpose that container causes security incident outward thereby reach.
When motlten metal liquid down leaks between air brick core 19 and brick cup 18, owing to closely contact between air brick pad brick body refractory material 1 and the integral air brick brick cup 18 and seal with refractory wass 17, high-temperature fusant is difficult to pass through, thereby the preferential deposite metal of motlten metal liquid cover plate 22, down leak the cavity 6 that enters in the pad brick along metal tracheae 21 then.Thereby this air brick pad brick and retaining mechanism have reduced motlten metal liquid equally along the risk of down leaking between air brick core 19 and the brick cup 18.
With reference to figure 3, Fig. 4, pad brick body refractory material 1 closely is supported on the bottom of air brick core 19, prevents that the air brick core from sinking because of the static pressure of motlten metal liquid, has reduced the risk of sinking to taking place the melt leakage accident because of the air brick core.
The foregoing description of the present utility model only is for clearer explanation the utility model example, and is not the restriction to mode that the utility model is implemented.Technical staff for described field; can also make other multi-form changes on the basis of the above description; this paper can't make exhaustive to all embodiments, and those belong to the change that spirit of the present utility model amplifies out and still are among the protection domain of the present utility model.
Claims (5)
1, a kind of anti-bleed-out air brick pad brick and retaining mechanism, it is characterized in that air brick pad brick is made up of body refractory material, one group of spring, a metal caul, one group of wire, a draw ring and a metal air supply system, retaining mechanism is made up of a base, a locking body and one group of fastening bolt, described base is fixedly mounted on the involucrum of molten metal container bottom, locking body be assemblied in base below, described air brick pad brick is installed in air brick, brick cup bottom by locking body, and closely contacts between air brick, the brick cup.
2, a kind of anti-bleed-out air brick pad brick according to claim 1 and retaining mechanism, it is characterized in that the metal air supply system is made up of a snap joint female, one group of thin metal hose and a crude metal pipe, one end of thin metal hose is connected with the snap joint female and communicates, the other end is connected with the crude metal pipe and communicates, and the diameter of thin metal hose is 3-10mm.
3, a kind of anti-bleed-out air brick pad brick according to claim 1 and retaining mechanism is characterized in that an end of described spring is connected with the snap joint female, and the other end is connected with metal caul.
4, a kind of anti-bleed-out air brick pad brick according to claim 1 and retaining mechanism, it is characterized in that snap joint female, spring, metal caul and cavity that is surrounded by refractory material of parts of fine metal hose composition, the snap joint female can move up and down under the support of spring.
5, a kind of anti-bleed-out air brick pad brick according to claim 1 and retaining mechanism is characterized in that one group of end wiry is connected with the clasp of snap joint female, and the other end is connected with a draw ring, but the activity of wire pulling clasp easy on and off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201182685U CN201275616Y (en) | 2008-05-29 | 2008-05-29 | Breakout-proof air brick backing brick and locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201182685U CN201275616Y (en) | 2008-05-29 | 2008-05-29 | Breakout-proof air brick backing brick and locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201275616Y true CN201275616Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201182685U Expired - Fee Related CN201275616Y (en) | 2008-05-29 | 2008-05-29 | Breakout-proof air brick backing brick and locking mechanism |
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| CN (1) | CN201275616Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689004A (en) * | 2012-06-13 | 2012-09-26 | 鞍钢股份有限公司 | Secondary plugging method for preventing bleed-out of heat exchange air brick |
-
2008
- 2008-05-29 CN CNU2008201182685U patent/CN201275616Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689004A (en) * | 2012-06-13 | 2012-09-26 | 鞍钢股份有限公司 | Secondary plugging method for preventing bleed-out of heat exchange air brick |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20150529 |
|
| EXPY | Termination of patent right or utility model |