CN214406972U - Chromium corundum abrasive brick for heating furnace - Google Patents
Chromium corundum abrasive brick for heating furnace Download PDFInfo
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- CN214406972U CN214406972U CN202023227465.0U CN202023227465U CN214406972U CN 214406972 U CN214406972 U CN 214406972U CN 202023227465 U CN202023227465 U CN 202023227465U CN 214406972 U CN214406972 U CN 214406972U
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- corundum abrasive
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Abstract
The utility model discloses a chromium corundum abrasive brick for heating furnace relates to the heating furnace field, for solving the current heating furnace among the prior art because wear-resisting material serious problem of wearing and tearing under high temperature. The second chrome corundum abrasive brick is located on one side of the first chrome corundum abrasive brick, the third chrome corundum abrasive brick and the fourth chrome corundum abrasive brick are located on the lower end faces of the first chrome corundum abrasive brick and the second chrome corundum abrasive brick respectively, longitudinal limiting grooves are formed in the upper ends and the lower ends of the first chrome corundum abrasive brick, the second chrome corundum abrasive brick, the third chrome corundum abrasive brick and the fourth chrome corundum abrasive brick respectively, two groups of corundum abrasive grooves are arranged in the longitudinal limiting grooves, transverse limiting grooves are formed in the two sides of each of the first chrome corundum abrasive brick, the second chrome corundum abrasive brick, the third chrome corundum abrasive brick and the fourth chrome corundum abrasive brick respectively, and fastening strips are arranged inside the transverse limiting grooves and the longitudinal limiting grooves.
Description
Technical Field
The utility model relates to a heating furnace production technical field specifically is a chromium corundum abrasive brick for heating furnace.
Background
The heating furnace refers to an apparatus (industrial furnace) for heating a material or a work (generally, a metal) to a rolling temperature to a forging temperature in the metallurgical industry, and can be classified into a continuous heating furnace and a chamber type heating furnace. The heating furnace is applied to various industrial fields such as petroleum, chemical industry, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, pharmacy and the like. According to the distribution of the furnace temperature, the hearth is divided into a preheating section, a heating section and a soaking section along the length direction. The lower temperature of the feed end is a preheating section, and the function of the preheating section is to utilize the heat of furnace gas so as to improve the thermal efficiency of the furnace. The heating section is a main heating section, and the temperature of furnace gas is higher, so that the rapid heating is realized. The soaking section is positioned at the discharging end, the difference between the temperature of the furnace gas and the temperature of the metal material is very small, and the uniform temperature of the section of the discharged material blank is ensured.
The exterior of the heating furnace is generally protected by a chromium corundum brick, and the main mineral composition is alpha-Al 2O3-Cr2O3 solid solution. The secondary mineral composition is a refractory brick with a small amount of composite spinel (or without composite spinel) and a chromium oxide content of 1-30%. There are two kinds of cast chrome corundum bricks and sintered chrome corundum bricks. In general, a chromium corundum brick is a sintered chromium corundum brick. The existing heating furnace has the defects that the wear-resistant material is seriously worn at high temperature, the common high-alumina PA brick is low in cost and easy to wear, and the high-wear-resistant material adopted in the existing heating furnace has good effect but high cost and is difficult to realize by users; therefore, the market urgently needs to develop the chromium corundum abrasive brick for the heating furnace to help people to solve the existing problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chromium corundum abrasive brick for heating furnace to solve the current heating furnace that proposes among the above-mentioned background art because the serious problem of wearing and tearing of wear-resisting material under high temperature.
In order to achieve the above object, the utility model provides a following technical scheme: a chrome corundum abrasive brick for a heating furnace comprises a first chrome corundum abrasive brick, a second chrome corundum abrasive brick, a third chrome corundum abrasive brick and a fourth chrome corundum abrasive brick, wherein the second chrome corundum abrasive brick is positioned on one side of the first chrome corundum abrasive brick, the third chrome corundum abrasive brick and the fourth chrome corundum abrasive brick are respectively positioned on the lower end surfaces of the first chrome corundum abrasive brick and the second chrome corundum abrasive brick, the upper ends and the lower ends of the first chrome corundum abrasive brick, the second chrome corundum abrasive brick, the third chrome corundum abrasive brick and the fourth chrome corundum abrasive brick are respectively provided with a longitudinal limiting groove, the longitudinal limiting grooves are provided with two groups, the two sides of the first chrome corundum abrasive brick, the second chrome corundum abrasive brick, the third chrome corundum abrasive brick and the fourth chrome corundum abrasive brick are respectively provided with a transverse limiting groove, and the inner parts of the transverse limiting groove and the longitudinal limiting groove are respectively provided with a fastening strip, the fastening strips are embedded into the longitudinal limiting grooves and the transverse limiting grooves and clamped with the first chromium corundum abrasive brick, the second chromium corundum abrasive brick, the third chromium corundum abrasive brick and the fourth chromium corundum abrasive brick respectively, a fixing frame body is arranged in the middle of the inside of the first chromium corundum abrasive brick, the second chromium corundum abrasive brick, the third chromium corundum abrasive brick and the fourth chromium corundum abrasive brick, a supporting frame body is arranged outside the fixing frame body, a chromium corundum high-wear-resistant layer is arranged between the supporting frame body and the fixing frame body, and a high-aluminum fire-resistant layer is arranged inside the fixing frame body.
Preferably, the length of vertical spacing groove and horizontal spacing groove is the same with the length of fastening strip, the upper end and the lower extreme of fastening strip all are provided with spacing, spacing and fastening strip set up structure as an organic whole, all be provided with the draw-in groove between the both sides of spacing and vertical spacing groove and the horizontal spacing groove.
Preferably, the fixed frame body and the supporting frame body are arranged into an integral structure, and the supporting frame body is fixedly connected with the first chromium corundum abrasive brick, the second chromium corundum abrasive brick, the third chromium corundum abrasive brick and the fourth chromium corundum abrasive brick respectively.
Preferably, the strengthening rib is installed to braced frame's inboard, and the strengthening rib is provided with a plurality of, and the angle setting of a plurality of strengthening rib is forty-five degrees, and the both ends of a plurality of strengthening rib all with braced frame and fixed framework welded connection.
Preferably, the front end face of the fixed frame body is provided with a protection plate, the protection plate is clamped with the fixed frame body, and the chromium corundum high-wear-resistant layer is connected with the supporting frame body in a sintering mode.
Preferably, the high-alumina refractory layer is connected with the fixed frame in a sintering manner, the high-strength support plate is mounted inside the fixed frame, and the high-alumina refractory layer is connected with the high-strength support plate in a sintering manner.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a setting through vertical spacing groove and horizontal spacing groove, during the installation, can be in proper order with first chromium corundum abrasive brick, second chromium corundum abrasive brick, third chromium corundum abrasive brick and fourth chromium corundum abrasive brick are put and are measured flat, align two adjacent vertical spacing grooves and horizontal spacing groove, make two horizontal spacing grooves and two constant head tank structure sizes that horizontal spacing groove is constituteed the same, thereby the accessible inserts the holding strip and makes first chromium corundum abrasive brick, second chromium corundum abrasive brick, it is stable to connect between third chromium corundum abrasive brick and the fourth chromium corundum abrasive brick, and can be convenient for carry on spacingly through the outside spacing of holding strip, not only make things convenient for the dismouting, and can be convenient for the location, improve fixed effect.
2. The utility model discloses a through the setting of fixed framework and braced frame body, can protect the high wearing layer of chromium corundum at the braced frame body that the high wearing layer outer wall of chromium corundum set up, can protect the high wearing layer surface of chromium corundum in long-term work, improve the intensity behind its other high wearing layers of chromium corundum of contact, and improve braced frame body's intensity through the fixed framework of a plurality of strengthening rib cooperations, the effect of remain stable, further improve the wearability.
Drawings
Fig. 1 is an overall schematic view of the present invention.
Fig. 2 is an overall schematic view of the fastening strip of the present invention.
Fig. 3 is an internal structure diagram of the present invention.
In the figure: 1. a first chrome corundum abrasive brick; 2. a second chrome corundum abrasive brick; 3. a third chrome corundum abrasive brick; 4. a fourth chrome corundum abrasive brick; 5. a longitudinal limit groove; 6. a transverse limiting groove; 7. fixing the frame body; 8. a protection plate; 9. fastening strips; 10. a limiting strip; 11. a card slot; 12. a chrome corundum high-wear-resistant layer; 13. a support frame body; 14. a high alumina refractory layer; 15. high strength backup pad.
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.
Referring to fig. 1-3, the present invention provides an embodiment: a chrome corundum abrasive brick for a heating furnace comprises a first chrome corundum abrasive brick 1, a second chrome corundum abrasive brick 2, a third chrome corundum abrasive brick 3 and a fourth chrome corundum abrasive brick 4, wherein the second chrome corundum abrasive brick 2 is positioned on one side of the first chrome corundum abrasive brick 1, the third chrome corundum abrasive brick 3 and the fourth chrome corundum abrasive brick 4 are respectively positioned on the lower end surfaces of the first chrome corundum abrasive brick 1 and the second chrome corundum abrasive brick 2, the upper ends and the lower ends of the first chrome corundum abrasive brick 1, the second chrome corundum abrasive brick 2, the third chrome corundum abrasive brick 3 and the fourth chrome corundum abrasive brick 4 are respectively provided with a longitudinal limiting groove 5, two groups of longitudinal limiting grooves 5 are arranged, the two sides of the first chrome corundum abrasive brick 1, the second chrome corundum abrasive brick 2, the third chrome corundum abrasive brick 3 and the fourth chrome corundum abrasive brick 4 are respectively provided with a transverse limiting groove 6, and fastening strips 9 are respectively arranged inside the transverse limiting groove 6 and the longitudinal limiting groove 5, the fastening strips 9 are embedded into the longitudinal limiting grooves 5 and the transverse limiting grooves 6 and are respectively clamped with the first chrome corundum abrasive brick 1, the second chrome corundum abrasive brick 2, the third chrome corundum abrasive brick 3 and the fourth chrome corundum abrasive brick 4, the middle parts of the interiors of the first chrome corundum abrasive brick 1, the second chrome corundum abrasive brick 2, the third chrome corundum abrasive brick 3 and the fourth chrome corundum abrasive brick 4 are respectively provided with a fixed frame body 7, the outside of the fixed frame body 7 is provided with a supporting frame body 13, a chrome corundum high-abrasion-resistant layer 12 is arranged between the supporting frame body 13 and the fixed frame body 7, the inside of the fixed frame body 7 is provided with a high-alumina fire-resistant layer 14, the supporting frame body 13 arranged on the outer wall of the chrome corundum high-abrasion-resistant layer 12 can protect the chrome corundum high-abrasion-resistant layer 12, the surface of the chrome corundum high abrasion-resistant layer 12 can be protected in long-term operation, the strength of the chrome corundum high abrasion-resistant layer 12 after the chrome corundum high abrasion-resistant layer contacts other chrome corundum high abrasion-resistant layers 12 is improved, and the strength of the supporting frame body 13 is improved by matching the fixed frame bodies 7 through a plurality of reinforcing ribs, the stabilizing effect is maintained and the wear resistance is further improved.
Further, the length of vertical spacing groove 5 and horizontal spacing groove 6 is the same with the length of holding strip 9, the upper end and the lower extreme of holding strip 9 all are provided with spacing 10, spacing 10 sets up structure as an organic whole with holding strip 9, all be provided with draw-in groove 11 between the both sides of spacing 10 and vertical spacing groove 5 and the horizontal spacing groove 6, align adjacent two vertical spacing grooves 5 and horizontal spacing groove 6, the constant head tank structure size that makes two horizontal spacing grooves 6 and two horizontal spacing grooves 6 constitute is the same, thereby the accessible inserts holding strip 9 and makes first chromium corundum abrasive brick 1, second chromium corundum abrasive brick 2, connect stably between third chromium corundum abrasive brick 3 and the fourth chromium corundum abrasive brick 4.
Further, the fixing frame body 7 and the supporting frame body 13 are arranged into an integral structure, the supporting frame body 13 is fixedly connected with the first chrome corundum abrasive brick 1, the second chrome corundum abrasive brick 2, the third chrome corundum abrasive brick 3 and the fourth chrome corundum abrasive brick 4 respectively, the strength of the fixing frame body 7 can be improved through the high-strength supporting plate 15, and the high-aluminum refractory layer 14 is kept stable through the fixing frame body 7.
Further, the strengthening rib is installed to the inboard of braced frame 13, and the strengthening rib is provided with a plurality of, and the angle setting of a plurality of strengthening rib is forty-five degrees, and the both ends of a plurality of strengthening rib all with braced frame 13 and fixed framework 7 welded connection, improve braced frame 13's intensity through the fixed framework 7 of a plurality of strengthening rib cooperations.
Furthermore, the front end face of the fixed frame body 7 is provided with a protection plate 8, the protection plate 8 is clamped with the fixed frame body 7, the chromium corundum high-wear-resistant layer 12 is connected with the supporting frame body 13 in a sintering mode, and the heating furnace is externally protected through the chromium corundum high-wear-resistant layer 12.
Further, the high-alumina refractory layer 14 is connected to the fixed frame 7 by sintering, the high-strength support plate 15 is mounted inside the fixed frame 7, the high-alumina refractory layer 14 is connected to the high-strength support plate 15 by sintering, and the high-strength support plate 15 maintains the overall strength of the fixed frame 7.
The working principle is as follows: when in installation, the first chrome corundum abrasive brick 1, the second chrome corundum abrasive brick 2, the third chrome corundum abrasive brick 3 and the fourth chrome corundum abrasive brick 4 can be sequentially placed and leveled, two adjacent longitudinal limiting grooves 5 and two adjacent transverse limiting grooves 6 are aligned, so that the sizes of the positioning groove structures formed by the two transverse limiting grooves 6 and the two transverse limiting grooves 6 are the same, the first chrome corundum abrasive brick 1, the second chrome corundum abrasive brick 2, the third chrome corundum abrasive brick 3 and the fourth chrome corundum abrasive brick 4 can be stably connected by inserting the fastening strip 9, the limiting strips 10 outside the fastening strip 9 can be used for limiting conveniently, the disassembly and the assembly are convenient, the positioning is convenient, when in use, the supporting frame body 13 arranged on the outer wall of the chrome corundum high-abrasion-resistant layer 12 can protect the chrome corundum high-abrasion-resistant layer 12, the surface of the chrome corundum high-abrasion-resistant layer 12 can be protected in long-term work, the strength of the high-wear-resistant chromium corundum layer is improved after the high-wear-resistant chromium corundum layer contacts other high-wear-resistant chromium corundum layers 12, the strength of the supporting frame body 13 is improved through the matching of the reinforcing ribs and the fixing frame body 7, the stabilizing effect is kept, the wear resistance is further improved, and the external protection of the heating furnace is carried out through the high-wear-resistant chromium corundum layer 12.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a chromium corundum abrasive brick for heating furnace, includes first chromium corundum abrasive brick (1), second chromium corundum abrasive brick (2), third chromium corundum abrasive brick (3) and fourth chromium corundum abrasive brick (4), its characterized in that: the second chrome corundum abrasive brick (2) is positioned on one side of the first chrome corundum abrasive brick (1), the third chrome corundum abrasive brick (3) and the fourth chrome corundum abrasive brick (4) are respectively positioned on the lower end faces of the first chrome corundum abrasive brick (1) and the second chrome corundum abrasive brick (2), the upper ends and the lower ends of the first chrome corundum abrasive brick (1), the second chrome corundum abrasive brick (2), the third chrome corundum abrasive brick (3) and the fourth chrome corundum abrasive brick (4) are respectively provided with a longitudinal limiting groove (5), the longitudinal limiting grooves (5) are provided with two groups, the two sides of the first chrome corundum abrasive brick (1), the second chrome corundum abrasive brick (2), the third chrome corundum abrasive brick (3) and the fourth chrome corundum abrasive brick (4) are respectively provided with a transverse limiting groove (6), and the inner parts of the transverse limiting groove (6) and the longitudinal limiting groove (5) are respectively provided with a fastening strip (9), the fastening strip (9) is embedded into the longitudinal limiting groove (5) and the transverse limiting groove (6) and is clamped with the first chrome corundum wear-resistant brick (1), the second chrome corundum wear-resistant brick (2), the third chrome corundum wear-resistant brick (3) and the fourth chrome corundum wear-resistant brick (4) respectively, a fixed frame body (7) is arranged in the middle of the inner parts of the first chrome corundum wear-resistant brick (1), the second chrome corundum wear-resistant brick (2), the third chrome corundum wear-resistant brick (3) and the fourth chrome corundum wear-resistant brick (4), a supporting frame body (13) is arranged outside the fixed frame body (7), a chrome corundum high wear-resistant layer (12) is arranged between the supporting frame body (13) and the fixed frame body (7), and a high-alumina refractory layer (14) is arranged inside the fixed frame body (7).
2. The chrome corundum abrasive brick for the heating furnace according to claim 1, which is characterized in that: the length of vertical spacing groove (5) and horizontal spacing groove (6) is the same with the length of fastening strip (9), the upper end and the lower extreme of fastening strip (9) all are provided with spacing (10), spacing (10) set up structure as an organic whole with fastening strip (9), all be provided with between the both sides of spacing (10) and vertical spacing groove (5) and horizontal spacing groove (6) draw-in groove (11).
3. The chrome corundum abrasive brick for the heating furnace according to claim 1, which is characterized in that: the fixed frame body (7) and the supporting frame body (13) are arranged into an integral structure, and the supporting frame body (13) is fixedly connected with the first chrome corundum abrasive brick (1), the second chrome corundum abrasive brick (2), the third chrome corundum abrasive brick (3) and the fourth chrome corundum abrasive brick (4) respectively.
4. The chrome corundum abrasive brick for the heating furnace according to claim 1, which is characterized in that: the strengthening rib is installed to the inboard of braced frame body (13), and the strengthening rib is provided with a plurality of, and the angle setting of a plurality of strengthening rib is forty-five degrees, and the both ends of a plurality of strengthening rib all with braced frame body (13) and fixed framework (7) welded connection.
5. The chrome corundum abrasive brick for the heating furnace according to claim 1, which is characterized in that: the front end face of the fixed frame body (7) is provided with a protection plate (8), the protection plate (8) is clamped with the fixed frame body (7), and the chromium corundum high-wear-resistance layer (12) is connected with the supporting frame body (13) in a sintering mode.
6. The chrome corundum abrasive brick for the heating furnace according to claim 5, is characterized in that: the high-alumina refractory layer (14) is connected with the fixed frame body (7) in a sintering mode, the high-strength support plate (15) is installed inside the fixed frame body (7), and the high-alumina refractory layer (14) is connected with the high-strength support plate (15) in a sintering mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023227465.0U CN214406972U (en) | 2020-12-29 | 2020-12-29 | Chromium corundum abrasive brick for heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023227465.0U CN214406972U (en) | 2020-12-29 | 2020-12-29 | Chromium corundum abrasive brick for heating furnace |
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| Publication Number | Publication Date |
|---|---|
| CN214406972U true CN214406972U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023227465.0U Active CN214406972U (en) | 2020-12-29 | 2020-12-29 | Chromium corundum abrasive brick for heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214406972U (en) |
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2020
- 2020-12-29 CN CN202023227465.0U patent/CN214406972U/en active Active
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