CN210314352U - One-step forming integral air brick and forming die - Google Patents
One-step forming integral air brick and forming die Download PDFInfo
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- CN210314352U CN210314352U CN201920852484.0U CN201920852484U CN210314352U CN 210314352 U CN210314352 U CN 210314352U CN 201920852484 U CN201920852484 U CN 201920852484U CN 210314352 U CN210314352 U CN 210314352U
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Abstract
The one-step forming integral air brick and forming mold has reasonable design, and the formed air brick is formed in one step through the special forming mold without high temperature sintering, so that the technological steps are reduced, the use requirement of the ladle age is met, the production period of air brick products can be shortened, the energy consumption is reduced, and the energy conservation and emission reduction are realized.
Description
Technical Field
The utility model relates to a steel smelting field, what specifically say is a whole air brick of one shot forming, forming die and forming method.
Background
With the rapid development of the steel industry, the external refining technology becomes an important smelting link for improving the steel quality, and the ladle bottom hydrogen blowing technology is widely adopted in the external refining technology. The air brick is a key functional refractory material of the ladle bottom argon blowing process. At present, the yield of steel of the variety is higher and higher, the refining ratio of molten steel is improved day by day, the use condition of a ladle is more and more rigorous, and higher requirements are put forward on refractory materials for the ladle. The position and the environment of the air brick in the steel ladle are special, the requirements on the service life, the blow-through rate and the air permeability are more strict, the bottom blowing air brick of the steel ladle at present becomes a bottleneck factor limiting the improvement of the service life of the steel ladle, particularly, the service life of the air brick cannot meet the requirement of the age of the steel ladle, the steel ladle needs to be built, maintained and replaced for multiple times, the using amount of the air brick is greatly increased, and the refractory material cost for steel smelting is continuously improved. The ladle is stopped and maintained, so that heat loss is caused, and the ladle needs to be baked again before being put on line again, so that the energy consumption is increased, and the environment-friendly pressure of steel smelting is increased.
The production process of the integral air brick for the ladle at the present stage is as follows: the air brick core is firstly molded in a mold, demoulded, maintained and dried, then sintered at high temperature, then picked, wrapped with a steel sleeve and welded with a tail pipe to obtain a finished product air brick core, and then the air brick core and a brick cup mold are assembled to form an integral brick cup. The production process has high energy consumption and long production period, and the finished product rate after sintering cannot be effectively ensured. The yield of the air brick fired at high temperature is generally 90-95% at present, and the production cycle of the whole air brick is generally 30-40 days. Therefore, the production process of the air brick also determines that the production and operation cost is high.
The design of the air brick is unreasonable, the yield and the quality of the air brick are also influenced, when the air brick is processed, the air brick core needs to be processed independently, and then the air brick seat brick is poured on the periphery of the air brick core, the processing technology of the mode is complex, the required forming mold is more complex, the mold needs to be disassembled and installed for many times during processing, and the finally formed air brick can cause product damage or product deviation due to complex technology.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a whole air brick of one shot forming, forming die, the air brick is integrated into one piece structural design reasonable, through special forming die one shot forming to fashioned air brick need not through high temperature firing, reduces the technology step, satisfies ladle package age's user demand, can shorten the production cycle of air brick product simultaneously, reduces energy consumption, realizes energy saving and emission reduction.
In order to realize the technical purpose, the adopted technical scheme is as follows: the utility model provides a whole air brick of one shot forming, air brick integrated into one piece is equipped with at least one in the inside of air brick and encloses the air chamber that becomes by enclosing cover, setting down line board in enclosing the cover and the apron that will enclose the cover bottom and seal, sets up the ventilative passageway that extends to the air brick top surface by the air chamber in the air brick, still is equipped with the setting in the air chamber below and with the gas input pipe that the air chamber is linked together.
The ventilation channel is arranged linearly.
A forming die for integrally forming an air brick comprises a pouring box, at least one set of pouring brick core assembly and at least one light-burning volatile polyester strip for forming an air passage, wherein the pouring box is internally provided with the pouring brick core assembly, the pouring brick core assembly comprises a surrounding sleeve, a lower wire plate provided with a mounting opening for mounting the light-burning volatile polyester strip, a cover plate for sealing the bottom of the surrounding sleeve and a gas input pipe, the upper opening of the surrounding sleeve is a pouring opening communicated with the inner cavity of the pouring box, the lower opening of a frame-shaped surrounding sleeve is sealed by the cover plate, a lower wire plate is arranged in the surrounding sleeve, the shape of the lower wire plate is matched with the cross-sectional shape of the surrounding sleeve, a gap is arranged between the lower wire plate and the cover plate, the lower surface of the lower wire plate, the upper surface of the cover plate and the inner wall of the surrounding sleeve form an air chamber, the gas input pipe is fixedly mounted on the cover plate and communicated with the air chamber, one end, the other end of the pouring box is fixedly arranged through a fixing piece, and the space surrounded by the pouring box, the pouring brick core combination body and the light-burned volatile polyester strip is the one-step forming pouring space of the air brick.
The periphery of the surrounding sleeve is provided with an anchoring piece.
The surface of the gas input pipe is provided with an external thread, the bottom of the pouring box is provided with an internal thread hole matched with the external thread, and the gas input pipe is fixed on the pouring box through the thread.
The inner wall of the enclosure is provided with a plurality of baffle plates, and the lower line plate and/or the cover plate are fixedly arranged in the enclosure through the baffle plates.
The utility model has the advantages that:
(1) the air brick core and the air brick cup are integrated, and the air brick is molded by one-step casting according to the positions and structures of the air channel and the gas input pipe which are reasonably designed according to the casting condition, so that the production period of the air brick is greatly shortened, and the production and operation cost is saved; (2) the air brick core and the air brick seat are integrated, so that the integrity is better when the twins air brick or the multi-cell air brick is manufactured, the structure is more uniform, the internal stress is more uniform in the using process, and the use stability of the twins air brick or the multi-cell air brick can be improved; (3) the design of the forming die enables the air brick to be formed in one step, and does not need to disassemble the light-burned volatile polyester strips, so that the position of the air channel is regular, the production difficulty is reduced, and the light-burned volatile polyester strips can be volatilized to finish the appearance of the air channel through the light-burned forming of the air brick; (4) the air brick is subjected to light burning treatment, so that the light-burned volatile polyester strips can be volatilized, the high-temperature burning of the air brick core is avoided, the production cost can be reduced, the energy consumption can be reduced, and the energy conservation and emission reduction can be realized.
Drawings
FIG. 1 is a schematic structural view of a one-step formed twin integral air brick;
FIG. 2 is a schematic cross-sectional view of an integrally formed air brick;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is a schematic structural view of a forming mold for one-step forming of the integral air brick;
in the figure: 1. air brick cup, 2, air passage, 3, enclosure, 4, anchoring part, 5, baffle, 6, lower line plate, 7, cover plate, 8, air chamber, 9, gas input pipeline, 10, pouring box, 11, fixing block, 12, support rod, 13, support nut, 14, upper line plate, 15, butterfly nut, 16, light-burned volatile polyester strip, 17, pin, 18, air brick core, 19, pouring brick core assembly, 20 and mounting opening.
Detailed Description
In order to further clarify the technical means adopted by the present invention, the following description is made with reference to the accompanying drawings for further explaining the specific implementation and system composition of the one-step forming light-burned twins air brick. The described embodiments are only some embodiments of the invention, not all embodiments. Based on the utility model discloses an embodiment obtains other implementation modes, all belongs to the utility model discloses a protection scope.
As shown in figure 1, the integral air brick formed in one step is characterized in that the air brick is integrally formed, namely, an air brick seat and an air brick core are integrally cast by the same material, at least one air chamber 8 which is formed by a surrounding sleeve 3, a lower line plate 6 arranged in the surrounding sleeve 3 and a cover plate 7 sealed at the bottom of the surrounding sleeve 3 is arranged in the air brick, an air passage 2 extending from the air chamber 8 to the top surface of the air brick is arranged in the air brick, and a gas input pipe 9 which is arranged below the air chamber 8 and is communicated with the air chamber 8 is further arranged in the air brick.
The air channel 2 is arranged linearly, namely the air channel 2 extends from the top of the air brick cup to the bottom of the air brick core in a linear mode and is communicated with the air chamber.
A forming die for one-step forming of integral air bricks comprises a pouring box 10 with a pouring opening, at least one set of pouring brick core assembly 19 with a pouring opening and at least one light-burned volatile polyester strip 16, wherein the pouring box 10 is internally provided with the pouring brick core assembly 19, the pouring brick core assembly 19 comprises a surrounding sleeve 3, a lower coil plate 6 provided with a mounting port 20 for mounting the light-burned volatile polyester strip 16, a cover plate 7 for sealing the bottom of the surrounding sleeve 3 and a gas input pipe 9, the upper opening of the surrounding sleeve 3 is a pouring opening communicated with the inner cavity of the pouring box 10, the lower opening of the frame-shaped surrounding sleeve 3 is sealed by the cover plate 7, a lower coil plate 6 is arranged in the surrounding sleeve 3, the shape of the lower coil plate 6 is matched with the cross-sectional shape of the surrounding sleeve 3, a gap is arranged between the lower coil plate 6 and the cover plate 7, the lower surface of the lower coil plate 6, the upper surface of the cover plate 7 and the inner, the gas input pipe 9 is fixedly arranged on the cover plate 7 and is communicated with the air chamber 8, one end of the light-burned volatile polyester strip 16 is fixedly arranged in the mounting opening 20, the other end of the light-burned volatile polyester strip is fixedly arranged through a fixing piece, the light-burned volatile polyester strip 16 is arranged in the pouring space in a straightening mode, and the space surrounded by the pouring box 10, the pouring brick core combination 19 and the light-burned volatile polyester strip 16 is a one-step forming integral air brick pouring space.
The shape of the interior cavity of the casting box 10 can be selected as desired, for example: cylindrical inner chamber, rectangle inner chamber, conical inner chamber etc. pouring box 10 is formed by the fixed bolt spiral shell of polylith splice plate, and convenient dismantlement of this kind of design and change, splice plate also can carry out reuse combination.
The light-burned volatile polyester strips 16 are pre-embedded in the air brick cup 1 and are in the early existence form of the air channel 2. The light-burning volatile polyester strip is a material which can be liquefied at a light burning temperature and then volatilizes, and has a strip-shaped solid structure at normal temperature. The lower extreme of the polyester strip that volatilizees of light burning is installed in the assorted installing port, can realize pre-buried, and accessible installing port is fixed again, can increase the pin and carry out spacing fixed, and the upper end is fixed through fixed subassembly, guarantees straightening of the whole polyester strip that volatilizees of light burning can. The absolute regularity of the finally formed ventilation channel 2 is ensured by straightening the preset light-burned volatile polyester strips 16, and the channel automatically appears along with light burning without manual removal.
The lower end of the light-burned volatile polyester strip 16 is fixed on the lower wire plate 6, and the upper end of the light-burned volatile polyester strip 16 is fixed on the upper wire plate 14 through a pin 17. The upper wire plate 14 is fixed on the support rod 12 through the support nut 13 and the butterfly nut 15, and the support rod 12 is connected with the forming die into a whole through the bracket 10 and the fixing block 11. So that a pouring opening is reserved above the forming die. The height of the light-burned volatile polyester strip 16 is higher than that of a pouring opening of the pouring box, so that the first mode is convenient to fix, and the second mode is used for preventing the height from being insufficient and being incapable of realizing pre-embedding.
As shown in fig. 2, the shape of the enclosure 3 is not limited, the cross section can be polygonal or circular, only the sealing of the air chamber needs to be ensured, a plurality of through holes communicated with the space in the pouring box can be opened on the enclosure 3, the integral pouring speed is accelerated, the anchoring piece is arranged on the periphery of the enclosure 3, and the anchoring piece 4 can improve the bonding strength of the steel sleeve and the integral brick cup 1.
The surface of the gas input pipe 9 is provided with an external thread, the bottom of the pouring box 10 is provided with an internal thread hole matched with the external thread, the gas input pipe 9 is fixed on the pouring box 10 through the thread, and the rapid fixation of the poured brick core assembly can be completed through the mode. When the gas inlet pipe 9 is arranged, it is ensured that the external space can be communicated with the gas chamber 8 through the gas inlet pipe 9 after pouring, i.e. the gas inlet pipe 9 extends out of a part of the pouring space.
As shown in fig. 3, a plurality of baffle plates are arranged on the inner wall of the enclosure 3, and the lower coil plate 6 and/or the cover plate 7 are fixedly arranged in the enclosure 3 through the baffle plates. Through the fender face that sets up, can with line board and apron 7 quick fixed spacing install enclose 3 in with on the bottom, realized the rapid shaping of air chamber.
A method for forming an integrally formed air brick by using a forming die comprises the steps of pouring a forming material into a pouring space enclosed by the forming die to integrally form an air brick seat and an air brick core by pouring, curing and drying the formed air brick seat and the air brick core, firing, and volatilizing a light-burned volatile polyester strip to obtain the integrally formed air brick.
The molding material mainly adopts the following materials: plate-like corundum particles or white corundum particles, active alumina micropowder, pure calcium aluminate cement, magnesium aluminate spinel fine powder, chromium oxide, water and the like. In order to ensure rapid forming, the light-fired air brick is mainly different from the traditional high-temperature fired air brick in that the active alumina micro powder and spinel fine powder used in the scheme of the light-fired air brick have finer granularity and higher activity; the required calcium aluminate cement has lower content compared with the original proportion, and the molding water addition is reduced. The specific formulation of the light-burned gas permeable brick is not particularly limited.
As shown in fig. 2 and 4, the air brick core and the air brick seat in the twins air brick are of an integral structure, and are collectively called as an integral air brick seat through one-time casting molding. Before the integral air brick is formed, firstly, the polyester strip, the steel sleeve, the slit lower line plate, the cover plate and the gas input pipeline are combined into a pouring brick core combination body, then the pouring brick core combination body is fixed in a mould, and the upper end and the lower end of the lightly-poured volatile polyester strip are respectively fixed on the upper line plate 14 and the lower line plate 6. After the die is assembled, the casting material is used for one-time casting molding, and then the molding is cured and dried before the die is disassembled, and cured and dried after the die is disassembled, and the volatilized polyester strips 16 are slightly burnt after burning treatment to volatilize to form the gas permeable channel 2, namely the one-time molded integral gas permeable brick.
As shown in fig. 1, before the twin-bodied air brick or the multi-bodied air brick is formed, the required number of the pouring brick core assemblies are fixedly installed in the pouring box, two pouring brick core assemblies are installed, the one-step formed twin-bodied air brick is finally refined, more than two pouring brick core assemblies are installed, and the one-step formed multi-bodied air brick is finally refined.
The production period of the one-step forming integral air brick can be shortened to 10-15 days, and the yield can reach more than 99%. The air brick can meet the use requirement of the ladle age, reduce the energy consumption of steel enterprises, realize energy conservation and emission reduction, and reduce the production and operation cost of the air brick of refractory enterprises.
Claims (6)
1. The utility model provides an integral air brick of one shot forming which characterized in that: air brick integrated into one piece is equipped with at least one in the inside of air brick and encloses by enclosing cover (3), setting down line board (6) in enclosing cover (3) and apron (7) that will enclose the bottom seal of cover (3) air chamber (8) that enclose, sets up ventilative passageway (2) that extend to the air brick top surface by air chamber (8) in the air brick, still is equipped with gas input tube (9) that set up in air chamber (8) below and be linked together with air chamber (8) in the air brick.
2. The one-step integral air brick as claimed in claim 1, wherein: the ventilation channel (2) is arranged linearly.
3. The utility model provides a forming die that whole air brick of one shot forming used which characterized in that: comprises a pouring box (10), at least one set of pouring brick core assembly (19) and at least one light-burning volatile polyester strip (16) used for forming a ventilation channel (2), wherein the pouring box (10) is internally provided with the pouring brick core assembly (19), the pouring brick core assembly (19) comprises a surrounding sleeve (3), a lower line plate (6) provided with a mounting opening (20) for mounting the light-burning volatile polyester strip (16), a cover plate (7) for sealing the bottom of the surrounding sleeve (3) and a gas input pipe (9), an upper opening of the surrounding sleeve (3) is a pouring opening communicated with the inner cavity of the pouring box (10), a lower opening of the frame-shaped surrounding sleeve (3) is sealed by a cover plate (7), a lower line plate (6) is arranged in the surrounding sleeve (3), the shape of the lower line plate (6) is matched with the cross-section shape of the surrounding sleeve (3), a gap is arranged between the lower line plate (6) and the cover plate (7), the lower surface of lower line board (6), the upper surface of apron (7) and the inner wall of enclosing cover (3) enclose into air chamber (8), and gas input tube (9) fixed mounting is on apron (7) to be linked together with air chamber (8), the one end fixed mounting of lightly burning volatile polyester strip (16) in installing port (20), and its other end passes through the fixed setting of mounting, and the space that pouring box (10), pouring brick core assembly (19) and lightly burning volatile polyester strip (16) enclose is the one shot forming pouring space of air brick.
4. The forming die for one-step forming of the integral air brick as claimed in claim 3, wherein: the periphery of the surrounding sleeve (3) is provided with an anchoring piece.
5. The forming die for one-step forming of the integral air brick as claimed in claim 3, wherein: the surface of the gas input pipe (9) is provided with an external thread, the bottom of the pouring box (10) is provided with an internal screw hole matched with the external thread, and the gas input pipe (9) is fixed on the pouring box (10) through the thread.
6. The forming die for one-step forming of the integral air brick as claimed in claim 3, wherein: a plurality of baffle sheets are arranged on the inner wall of the enclosure (3), and the lower coil plate (6) and/or the cover plate (7) are fixedly arranged in the enclosure (3) through the baffle sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852484.0U CN210314352U (en) | 2019-06-06 | 2019-06-06 | One-step forming integral air brick and forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852484.0U CN210314352U (en) | 2019-06-06 | 2019-06-06 | One-step forming integral air brick and forming die |
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| Publication Number | Publication Date |
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| CN210314352U true CN210314352U (en) | 2020-04-14 |
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| CN201920852484.0U Active CN210314352U (en) | 2019-06-06 | 2019-06-06 | One-step forming integral air brick and forming die |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066906A (en) * | 2019-06-06 | 2019-07-30 | 洛阳利尔耐火材料有限公司 | A kind of one-pass molding integral air brick, molding die and forming method |
| CN111763804A (en) * | 2020-07-29 | 2020-10-13 | 江苏嘉耐高温材料股份有限公司 | Circular seam type air brick and manufacturing method thereof |
-
2019
- 2019-06-06 CN CN201920852484.0U patent/CN210314352U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066906A (en) * | 2019-06-06 | 2019-07-30 | 洛阳利尔耐火材料有限公司 | A kind of one-pass molding integral air brick, molding die and forming method |
| CN111763804A (en) * | 2020-07-29 | 2020-10-13 | 江苏嘉耐高温材料股份有限公司 | Circular seam type air brick and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210129 Address after: 471322 Baisha Town Industrial Agglomeration Area, Yichuan County, Luoyang City, Henan Province Patentee after: Luoyang Lier Functional Materials Co.,Ltd. Address before: 471000 Luolong science and Technology Park, Luoyang hi tech Industrial Development Zone, Henan Province Patentee before: LUOYANG LIER REFRACTORY MATERIAL Co.,Ltd. |
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| TR01 | Transfer of patent right |