CN113134600B - Sliding plate brick repairing method - Google Patents
Sliding plate brick repairing method Download PDFInfo
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- CN113134600B CN113134600B CN202110453649.9A CN202110453649A CN113134600B CN 113134600 B CN113134600 B CN 113134600B CN 202110453649 A CN202110453649 A CN 202110453649A CN 113134600 B CN113134600 B CN 113134600B
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- brick
- sliding plate
- plate
- plate brick
- repairing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/28—Plates therefor
- B22D41/30—Manufacturing or repairing thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a method for repairing a sliding plate brick, which belongs to the technical field of sliding plate brick repair and comprises the following steps: (1) Naturally cooling the worn slide plate brick; (2) carrying out surface roughening and hole expanding treatment on the sliding plate brick; (3) filling the pits on the outer surface of the sliding plate brick with fire clay; (4) Placing the repairing cylinder in a casting hole of the sliding plate brick, and positioning by using a positioning tool; (5) Filling fire clay into a gap between the repairing cylinder and the casting hole; (6) After most of gaps are filled, removing the positioning tool and filling the rest gaps; (7) naturally airing, and drying in a kiln; (8) Polishing the surface of the sliding plate brick to be flat, and coating an anti-oxidation coating on the working surface of the sliding plate brick; and (9) drying. The method can repair and reuse the worn slide plate brick, increase the use times of the slide plate brick, prolong the service life of the slide plate brick, greatly reduce the consumption of ton steel refractory materials and ensure the effective increase of enterprise benefits.
Description
Technical Field
The invention relates to the technical field of sliding plate brick repair, in particular to a sliding plate brick repair method.
Background
Steelmaking refers to controlling the carbon content (generally less than 2%), eliminating harmful elements such as P, S, O, N and the like, reserving or increasing beneficial elements such as Si, mn, ni, cr and the like, and adjusting the proportion among the elements to obtain the best performance.
The sliding plate brick is an important component for controlling seed flow in the steelmaking process, and has higher compressive strength, toughness and thermal shock resistance. With the continuous progress of the domestic steel smelting technology and the increase of special steel grades, higher requirements are put forward for the sliding plate brick.
At present, the sliding plate for the large-scale steel ladle is made of aluminum carbon, aluminum zirconium carbon and magnesium generally, the use frequency is 2-4 times generally, the production cost is high, the consumption of ton steel refractory materials is high, the effective increase of enterprise benefits is influenced, the use frequency of the sliding plate brick is improved for reducing the resource consumption, the service life of the sliding plate brick is prolonged, and the sliding plate is an important subject which needs to be solved urgently in the steel-making industry at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a sliding plate brick repairing method; the sliding plate brick repairing method can repair and reuse the worn sliding plate brick, increase the use times of the sliding plate brick, prolong the service life of the sliding plate brick, greatly reduce the consumption of ton steel refractory materials and ensure the effective increase of enterprise benefits.
In order to solve the technical problem, the invention provides a sliding plate brick repairing method, which comprises the following steps:
(1) Transferring the worn slide plate bricks to a cooling placing frame for natural cooling;
(2) Carrying out surface roughening and hole expanding treatment on the sliding plate brick;
(3) Filling and leveling the pits on the outer surface of the sliding plate brick by using fire clay;
(4) Placing the repairing cylinder in a casting hole of the sliding plate brick, and positioning by using a positioning tool;
(5) Filling fire clay into a gap between the repairing cylinder and the casting hole;
(6) After most of gaps are filled, removing the positioning tool and filling the rest gaps;
(7) Naturally drying in a kiln;
(8) Polishing the surface of the sliding plate brick to be flat, and coating an anti-oxidation coating on the working surface of the sliding plate brick;
(9) After drying, the slide plate brick becomes a finished product for standby.
In a further improvement of the invention, in the step (2), a polishing machine and an angle grinder are adopted to treat the surface of the slide plate brick and the cast hole.
Through the design, the surface and the cast hole of the sliding plate brick can be more conveniently treated.
In a further improvement of the invention, the step (8) adopts a polishing machine to treat the surface of the sliding plate brick.
Through the design, the surface of the sliding plate brick can be more conveniently treated by the scheme.
In a further improvement of the invention, the step (8) adopts a roller coating treatment to coat the anti-oxidation coating on the working surface of the sliding brick.
Through the design, the scheme can paint the anti-oxidation coating more uniformly and thickly.
In the further improvement of the invention, the height of the repairing cylinder is set as H, the thickness of the sliding plate brick is set as H, and the height H of the repairing cylinder is 0.5-5 mm smaller than the thickness H of the sliding plate brick.
Through the design, this scheme can be more be convenient for avoid other equipment and repair a section of thick bamboo to take place to use and interfere, and is specific, repairs a section of thick bamboo and adopts the design that is slightly less than the former height of slide brick, is more convenient for prevent in the pulling use, and equipment face takes place to use with a repair section of thick bamboo and interferes, more does benefit to the smooth and easy use of repairing a section of thick bamboo.
In a further improvement of the invention, the cooling placement frame comprises a bottom plate, wherein a plurality of partition plates are arranged on the bottom plate, and a placement groove is arranged between every two adjacent partition plates.
The slide plate brick can appear crackle and plane deformation under the quench processing, consequently, this scheme is through above-mentioned design, can be more convenient for carry out natural cooling to the slide plate brick, during the use, at first with the slide plate brick of taking out in the follow equipment, with the instrument transfer to the standing groove in, carry out natural cooling, then handle erosion, scouring, the surperficial napping and the reaming that wearing and tearing caused, adopt buffing machine, angle mill to handle slide plate brick surface and cast hole, remove impurity such as slag, then carry out the restoration operation.
In a further improvement of the invention, the positioning tool comprises a connecting plate, wherein one end of the connecting plate is provided with an inner arc plate, and the inner arc plate is abutted against the repairing cylinder; the other end of the connecting plate is provided with an outer arc plate, and the outer arc plate can be abutted to the outer wall of one end of the sliding plate brick.
Through the design, the accurate positioning of the repair cylinder can be more convenient.
In a further improvement of the invention, the inner diameter of the inner circular arc plate is equal to the outer diameter of the repairing cylinder; setting the outer diameter of the repairing cylinder to be d, the arc length of the inner arc plate to be l, and the value range of the arc length of the inner arc plate to be 1/4 pi d or less and l or 1/2 pi d or less; setting the height of the inner arc plate as e, wherein the value range of e is more than or equal to 5mm and less than or equal to h; the thickness of the inner arc plate is g, and the value range of g is not less than 0.5mm and not more than 5mm.
Through the design, the scheme can be more convenient to implement and manufacture, and the outer diameter D of the repairing cylinder is the same as the diameter D of the cast hole of the unworn sliding plate brick.
In the further improvement of the invention, the inner diameter of the outer arc plate is equal to the outer diameter of one end of the sliding plate brick; setting the outer diameter of one end of the sliding plate brick to be F, the arc length of the outer arc plate to be L, and the value range of the arc length of the outer arc plate to be 1/4 pi F to L to 1/2 pi F; setting the height of the outer arc plate as E, wherein the value range of E is more than or equal to 5mm and less than or equal to E and less than or equal to H; the thickness of the outer arc plate is set to be G, and the value range of G is more than or equal to 0.5mm and less than or equal to 10mm.
Through the design, the scheme can be more convenient to implement and manufacture, and is more favorable for accurately positioning and repairing the cylinder by the positioning tool.
Compared with the prior art, the invention has the following beneficial effects:
the method can repair and reuse the worn slide plate brick, repair the slide plate brick by using the repair cylinder, the positioning tool and the fire clay, increase the use times of the slide plate brick, prolong the service life of the slide plate brick, greatly reduce the consumption of ton steel refractory materials and ensure the effective increase of enterprise benefits.
Drawings
To more clearly illustrate the background art or the technical solutions of the present invention, the following brief description of the drawings incorporated in the prior art or the detailed description of the present invention; it should be understood that the structures, proportions, and dimensions shown in the drawings and described in the specification are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the following claims.
FIG. 1 is a schematic process diagram of the present invention.
Fig. 2 is a schematic view of the structure of the cooling rack of the present invention.
FIG. 3 is a schematic view of the placement of the repair cylinder and the positioning tool according to the present invention.
FIG. 4 is a schematic view of the repairing cylinder of the present invention.
Fig. 5 is a schematic structural view of the positioning tool of the present invention.
Shown in the figure: 1-sliding plate brick; 2-cooling the placing frame; 21-a bottom plate; 22-placing the groove; 3-repairing the cylinder; 4, positioning a tool; 5-connecting plates; 6-inner arc plate; 7-outer arc plate; 8-fire clay; 9-primary casting holes; 10-wear cast hole.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following will make clear and complete description of the technical solution in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.
Meanwhile, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like referred to in the present specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, it is not to be understood that the present invention is limited to changes or adjustments of relative relationships thereof, and also to be considered as a scope in which the present invention can be implemented without substantial technical changes.
Meanwhile, in the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other, so that the specific meaning of the terms in the invention can be understood by those skilled in the art through specific situations.
As shown in fig. 1, a method for repairing a slide brick comprises the following steps:
(1) Transferring the worn slide plate brick to a cooling placing frame for natural cooling;
(2) Carrying out surface roughening and hole expanding treatment on the sliding plate brick;
(3) Filling and leveling the pits on the outer surface of the sliding plate brick by using fire clay;
(4) Placing the repairing cylinder in a casting hole of the sliding plate brick, and positioning by using a positioning tool;
(5) Filling fire clay into a gap between the repairing cylinder and the casting hole;
(6) After most of gaps are filled, removing the positioning tool and filling the rest gaps;
(7) Naturally drying in a kiln;
(8) Polishing the surface of the sliding plate brick to be flat, and coating an anti-oxidation coating on the working surface of the sliding plate brick;
(9) After drying, the slide plate brick becomes a finished product for standby.
The surface and the cast holes of the slide plate brick are processed by adopting a polishing machine and an angle grinder in the step (2); the surface of the sliding plate brick is treated by adopting a polishing machine in the step (8); and (8) coating the anti-oxidation coating on the working surface of the sliding brick by adopting roller coating treatment.
At present, the sliding plate for the large-scale steel ladle is generally made of aluminum carbon, aluminum zirconium carbon and magnesium, the use frequency is generally 2-4 times, the production cost is high, the consumption of per ton steel refractory material is high, the effective increase of enterprise benefits is influenced, the use frequency of the sliding plate brick is improved for reducing the resource consumption, the service life of the sliding plate brick is prolonged, and the sliding plate is an important subject which needs to be solved urgently in the steel-making industry at present.
Therefore, the design concept of the scheme is that the slide plate brick casting hole is repaired by utilizing the repairing cylinder, the positioning tool and the fire clay, then the use times of the slide plate brick are increased, and the service life of the slide plate brick is further prolonged.
As shown in fig. 2-5, the height H of the repairing cylinder 3 is set as H, the thickness of the sliding plate brick 1 is set as H, and the height H of the repairing cylinder 3 is 0.5 mm-5 mm smaller than the thickness H of the sliding plate brick 1; the cooling placing frame 2 comprises a bottom plate, a plurality of clapboards are arranged on the bottom plate 21, and a placing groove 22 is formed between every two adjacent clapboards.
The positioning tool 4 comprises a connecting plate 5, one end of the connecting plate 5 is provided with an inner arc plate 6, and the inner arc plate 6 is abutted to the repairing cylinder 3; the other end of connecting plate 5 is provided with outer circular arc board 7, and outer circular arc board 7 can be with the one end outer wall butt of sliding brick 1.
The inner diameter of the inner circular arc plate 6 is equal to the outer diameter of the repairing cylinder 3; setting the outer diameter of the repairing cylinder 3 as d, the arc length of the inner arc plate 6 as l, and the value range of the arc length of the inner arc plate 6 is that l is more than or equal to 1/4 pi d and less than or equal to 1/2 pi d; setting the height of the inner circular arc plate 6 as e, wherein the value range of e is more than or equal to 5mm and less than or equal to e and less than or equal to h; the thickness of the inner arc plate 6 is g, and the value range of g is not less than 0.5mm and not more than 5mm.
The inner diameter of the outer circular arc plate 7 is equal to the outer diameter of one end of the sliding plate brick 1; setting the outer diameter of one end of the sliding plate brick 1 to be F, the arc length of the outer arc plate 7 to be L, and the value range of the arc length of the outer arc plate 7 to be 1/4 pi F to L to 1/2 pi F; setting the height of the outer circular arc plate 7 as E, wherein the value range of E is more than or equal to 5mm and less than or equal to H; the thickness of the outer circular arc plate 7 is set to be G, and the value range of G is more than or equal to 0.5mm and less than or equal to 10mm.
The method adopts a steel cylinder with the same outer diameter as an original cast hole 9 (an unworn slide plate brick) of the slide plate brick as a repairing cylinder, two ends of a positioning tool are arc plates, the diameters of the arcs are respectively the same as the diameters of arcs at one end of the repairing cylinder and one end of a slide plate, and the length is the distance from the cast hole of the unworn slide plate brick to one end so as to ensure that the center hole of the slide plate is unchanged after repairing; through the application of the tool, the sliding plate brick is repaired, and the repaired sliding plate can reach the use level of the sliding plate brick without abrasion, so that the consumption of ton steel refractory materials is greatly reduced.
The invention relates to a tool used in the technology of repairing and recycling a functional refractory sliding plate brick for controlling the flow of molten steel in the steelmaking process, belonging to a mechanical device in the repairing and processing process of a refractory product; the tool and the matched application of the fire clay repairing and repairing method have the advantages that the use frequency of the repaired sliding plate can reach the use level of the original new sliding plate, the frequency is improved in multiples, the consumption of ton steel refractory materials is greatly reduced, and the tool plays an active role in reducing the consumption of non-renewable resources.
The fire clay adopts aluminum zirconium eutectic powder as an additive to repair the outer surface of the sliding plate brick and the casting hole; after the repairing is finished, the repairing cylinder is not removed and is used as a component of the repairing sliding plate (molten during steel pouring); the application is suitable for various sliding plate bricks, such as an additional steel belt type sliding plate, an assembled steel shell sliding plate, a sliding plate with an asbestos pad on the back surface, a sliding plate without an asbestos pad on the back surface, a sliding plate with a belt opening type and a sliding plate without a belt opening type, and the sliding plate is suitable for repairing by the technology.
The repair of the scheme adopts fire clay, wherein an aluminum-zirconium eutectic material is added, the fire clay takes a corundum baddeleyite eutectic as a main body, and the stress formed between zirconia and alumina is utilized to prevent the crystal form transformation of the zirconia; the nano-micron and submicron ZrO2/Al2O3 composite powder is used as a bonding phase to form nano-micron in-crystal composite, the bonding phase forms a composite dispersed phase, the strength and toughness are very high, the composite dispersed phase is practical as a repairing material, and the composite dispersed phase has the advantages of easiness in operation, good adhesion, good bonding property, and good scouring resistance and thermal shock resistance.
Although the present invention has been described in detail with reference to the preferred embodiments, the present invention is not limited thereto, and those skilled in the art can make various equivalent modifications or substitutions on the embodiments of the present invention without departing from the spirit and essence of the present invention, and those modifications or substitutions should be considered as being within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (7)
1. A method for repairing a slide brick is characterized by comprising the following steps: the method comprises the following steps:
(1) Transferring the worn slide plate bricks to a cooling placing frame for natural cooling;
(2) Carrying out surface roughening and hole expanding treatment on the sliding plate brick;
(3) Filling and leveling the pits on the outer surface of the sliding plate brick by using fire clay;
(4) Placing the repairing cylinder in a casting hole of the sliding plate brick, and positioning by using a positioning tool;
(5) Filling fire clay into a gap between the repairing cylinder and the casting hole;
(6) After most of gaps are filled, removing the positioning tool and filling the rest gaps;
(7) Naturally drying in a kiln;
(8) Polishing the surface of the sliding plate brick to be flat, and coating an anti-oxidation coating on the working surface of the sliding plate brick;
(9) After drying, the slide plate brick becomes a finished product for standby;
setting the height H of the repairing cylinder as H, the thickness of the sliding plate brick as H, and setting the height H of the repairing cylinder to be 0.5-5 mm smaller than the thickness H of the sliding plate brick;
the positioning tool comprises a connecting plate, one end of the connecting plate is provided with an inner arc plate, and the inner arc plate is abutted to the repairing cylinder; the other end of the connecting plate is provided with an outer arc plate, and the outer arc plate can be abutted to the outer wall of one end of the sliding plate brick.
2. The method of repairing a slide brick according to claim 1, wherein: and (3) processing the surface of the slide plate brick and the casting hole by adopting a polishing machine and an angle grinder.
3. The slide brick repairing method according to claim 1, characterized in that: and (8) processing the surface of the sliding brick by adopting a polishing machine.
4. The method of repairing a slide brick according to claim 1, wherein: and (8) coating the anti-oxidation coating on the working surface of the sliding brick by adopting roller coating treatment.
5. The slide brick repairing method according to any one of claims 1 to 4, wherein: the cooling placing frame comprises a bottom plate, a plurality of clapboards are arranged on the bottom plate, and a placing groove is formed between every two adjacent clapboards.
6. The slide brick repairing method according to claim 5, wherein: the inner diameter of the inner circular arc plate is equal to the outer diameter of the repairing cylinder; setting the outer diameter of the repairing cylinder to be d, the arc length of the inner arc plate to be l, and the value range of the arc length of the inner arc plate to be 1/4 pi d to l and 1/2 pi d; setting the height of the inner arc plate as e, wherein the value range of e is more than or equal to 5mm and less than or equal to h; the thickness of the inner arc plate is g, and the value range of g is not less than 0.5mm and not more than 5mm.
7. The slide brick repairing method according to claim 5, wherein: the inner diameter of the outer arc plate is equal to the outer diameter of one end of the sliding plate brick; setting the outer diameter of one end of the sliding plate brick to be F, the arc length of the outer arc plate to be L, and the value range of the arc length of the outer arc plate to be 1/4 pi F, L and 1/2 pi F; setting the height of the outer arc plate as E, wherein the value range of E is more than or equal to 5mm and less than or equal to H; the thickness of the outer arc plate is set to be G, and the value range of G is more than or equal to 0.5mm and less than or equal to 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110453649.9A CN113134600B (en) | 2021-04-26 | 2021-04-26 | Sliding plate brick repairing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110453649.9A CN113134600B (en) | 2021-04-26 | 2021-04-26 | Sliding plate brick repairing method |
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| CN113134600A CN113134600A (en) | 2021-07-20 |
| CN113134600B true CN113134600B (en) | 2023-02-17 |
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| CN113134600A (en) | 2021-07-20 |
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