Steel fiber castable prefabricated part for aluminum melting furnace

Abstract

The utility model relates to a steel fiber castable prefabricated part for an aluminum melting furnace in the technical field of fire hole prefabricated parts, which comprises a sleeve base body, a plurality of bottom inner lining plates and spacing columns are uniformly and annularly arranged at the bottom of an inner cavity of the sleeve base body along the circumferential direction at intervals, and the bottom inner lining plates and the spacing columns are alternately arranged and mutually clamped; protection plate parts are integrally formed on the lower end face of the bottom inner lining plate, all the protection plate parts form an annular plate, and the outer diameter of the annular plate is matched with the outer diameter of the sleeve base body; due to the arrangement of the bottom inner lining plate, the protection plate part on the bottom inner lining plate can replace the bottom of the sleeve base body to be directly impacted by hot gas in a furnace, the function of protecting the bottom of the sleeve base body is achieved, the bottom inner lining plate can be independently replaced when damaged, the service life of the sleeve base body is prolonged, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of burner prefabricated parts, in particular to a steel fiber castable prefabricated part for an aluminum melting furnace. Background Art

[0002] An aluminum melting furnace is a high-temperature furnace used for aluminum smelting. During the construction of the aluminum melting furnace, a refractory product called a castable prefabricated part is required. The castable prefabricated part is easy to construct and install, and can effectively improve the furnace construction efficiency. The castable prefabricated parts of the existing aluminum melting furnace nozzle are mostly integrated structures. The castable prefabricated parts of this structure have the following shortcomings: First, since the aluminum melting furnace nozzle needs to be frequently and continuously fed with a large amount of material, the nozzle will be worn out when the material enters (it was found that the top of the castable prefabricated part of the nozzle was the most seriously damaged during use), so the nozzle castable prefabricated part needs to be replaced frequently; Second, due to the high temperature and harsh environment of the aluminum melting furnace nozzle, it is easily affected by high temperature and damaged (it was found that the bottom of the castable prefabricated part of the nozzle was the most seriously damaged during use), so the nozzle of the aluminum melting furnace needs to be replaced and repaired regularly; the castable prefabricated part with this integrated structure is not convenient for replacing the damaged part separately, which reduces the effective service life of the castable prefabricated part and has certain usage defects.

[0003] To this end, we have designed a steel fiber castable preform for an aluminum melting furnace to address at least one of the above-mentioned deficiencies. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology, the utility model discloses a steel fiber castable prefabricated part for an aluminum melting furnace.

[0005] In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

[0006] A steel fiber castable preform for an aluminum melting furnace comprises a sleeve base, wherein a plurality of bottom lining plates and spacer columns are evenly spaced along the circumference of the bottom of the inner cavity of the sleeve base, the bottom lining plates and spacer columns being alternately arranged and mutually engaged; a guard plate portion is integrally formed on the lower end surface of the bottom lining plate, and all the guard plate portions form an annular plate, and the outer diameter of the annular plate matches the outer diameter of the sleeve base;

[0007] Wherein, a snap-fit ​​structure is provided between the inner wall of the sleeve base and the outer wall of the bottom lining plate.

[0008] Preferably, the locking structure includes a slot provided in the middle of the outer wall of the bottom inner lining plate, and a matching block is provided at a position corresponding to the slot on the inner wall of the sleeve base, and the top surface of the block is a slope with the inner side lower than the outer side.

[0009] Preferably, the upper end of the spacer column extends to the top of the sleeve base; the inner cavity of the sleeve base is evenly spaced along its circumference and provided with a plurality of middle lining plates, and the middle lining plates and the spacer columns are alternately arranged and engaged with each other.

[0010] Preferably, a snap-fitting groove is provided in the middle of the lower section of the outer wall of the middle inner lining plate, and a snap-fitting block matching the snap-fitting groove is provided on the inner wall of the sleeve base.

[0011] Preferably, an inner ring groove is provided on the inner side of the top of the combination of the middle lining plate and the spacer column.

[0012] Preferably, a top inner lining ring plate is provided at the top of the inner cavity of the sleeve base, and a first extension portion extending outward is provided at the top of the top inner lining ring plate, and the first extension portion is overlapped with the top surface of the sleeve base.

[0013] Preferably, a second extension portion extending downward is provided on the outer edge of the first extension portion.

[0014] Preferably, an annular notch is provided on the outer wall of the top of the sleeve base, and the second extension portion is correspondingly inserted into the annular notch.

[0015] Preferably, the outer wall of the second extension portion is flush with the outer wall of the sleeve base.

[0016] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0017] 1. The setting of the bottom lining plate can replace the bottom of the sleeve base to receive the direct impact of the hot gas in the furnace through the guard plate part on it, realizing the function of protecting the bottom of the sleeve base. In addition, when the bottom lining plate is damaged, it can be replaced separately, which increases the service life of the sleeve base and reduces the use cost.

[0018] 2. Due to the setting of the top lining ring plate, it can replace the top of the sleeve base to receive the direct impact of the material when feeding, thus realizing the function of protecting the top of the sleeve base. In addition, when the top lining ring plate is damaged, it can be replaced separately, which increases the service life of the sleeve base and reduces the use cost.

[0019] 3. The friction between the sleeve base and the material can be replaced by the combination of the spacer column and the middle inner lining plate, thereby ensuring the protection of the interior of the sleeve base. In addition, when the spacer column and the middle inner lining plate are damaged, they can be replaced separately, which increases the service life of the sleeve base and reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a bottom view of the utility model;

[0022] Figure 3 It is a cross-sectional view of the utility model;

[0023] Figure 4 This is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the explosion structure of the utility model from another perspective.

[0025] In the figure: 1. Sleeve base; 11. Clamping block; 12. Engaging block; 13. Annular notch; 2. Bottom lining plate; 21. Guard plate portion; 22. Engaging groove; 3. Spacer column; 4. Middle lining plate; 41. Engaging groove; 5. Top lining ring plate; 51. First extension portion; 52. Second extension portion. DETAILED DESCRIPTION

[0026] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right" and so on to indicate directions or positional relationships, they only correspond to the drawings of the present application and are for the convenience of describing the present invention; it should be understood that if there are terms such as "end", "side", "end part", "lateral", "transverse", "longitudinal" and so on to indicate directions or positional relationships, they only correspond to the length and width of the corresponding parts, that is, "end part" indicates the head and tail area of ​​the corresponding part in the length direction, and "side part" indicates the head and tail area of ​​the corresponding part in the width direction; this is for the convenience of describing the present invention and does not indicate or imply that the device or element referred to must have a specific direction.

[0027] Example 1, combined with the attached Figure 1-5 A steel fiber castable preform for an aluminum melting furnace includes a sleeve base 1. The bottom of the inner cavity of the sleeve base 1 is evenly spaced along its circumference and provided with a plurality of bottom lining plates 2 and spacer columns 3. The bottom lining plates 2 and spacer columns 3 are alternately arranged and engaged with each other. According to needs, both side walls of the bottom lining plate 2 are provided with grooves or ridges with open upper ends, and both sides of the spacer columns 3 are provided with ridges or grooves with open lower ends. The ridges or grooves on the spacer columns 3 cooperate with the grooves or ridges on the bottom lining plate 2 to form a locking system. Specifically, the bottom lining plate 2 and the spacer columns 3 form an annular structure. Since the bottom lining plate 2 and the spacer columns 3 are engaged with each other, the bottom lining plate 2 and the spacer columns 3 will not move radially inward.

[0028] A guard plate portion 21 is integrally formed on the lower end face of the bottom lining plate 2, and all the guard plate portions 21 constitute an annular plate, and the outer diameter of the annular plate matches the outer diameter of the sleeve base 1; that is, the outer edge of the annular plate is located below the bottom surface of the sleeve base 1, and the annular plate replaces the bottom of the sleeve base 1 to receive the direct impact of the hot gas in the furnace, thereby realizing the function of protecting the bottom surface of the sleeve base 1.

[0029] A snap-fit ​​structure is provided between the inner wall of the sleeve base 1 and the outer wall of the bottom lining plate 2;

[0030] Furthermore, the engaging structure includes a slot 22 provided in the middle of the outer wall of the bottom inner lining plate 2. In other words, the slot 22 is located on the outer wall of the bottom inner lining plate 2 and corresponds to the middle position in the width direction of the bottom inner lining plate 2. A matching block 11 is provided on the inner wall of the sleeve base 1 at a position corresponding to the slot 22. The top surface of the block 11 is an inclined surface with the inner side lower than the outer side. The engagement between the block 11 and the slot 22 prevents the bottom inner lining plate 2 from falling downward, and the interaction between the bottom inner lining plate 2 and the spacer 3 ensures that the position of the bottom inner lining plate 2 can be stably fixed.

[0031] When replacing the bottom lining plate 2, first remove the spacer columns 3 on both sides of the bottom lining plate 2 to be replaced, and then move the upper end of the bottom lining plate 2 to be replaced radially inward. At this time, the bottom lining plate 2 rotates, so that the bottom lining plate 2 card slot 22 disengages from the corresponding card block 11, and then move the bottom lining plate 2 downward to remove the bottom lining plate 2; when installing, the actions can be reversed according to the above-mentioned disassembly principle.

[0032] Example 2, combined with the attached Figure 1-5 A steel fiber castable preform for an aluminum melting furnace, based on the first embodiment, a top inner lining ring plate 5 is provided at the top of the inner cavity of the sleeve base 1, and a first extension portion 51 extending outward is provided at the top of the top inner lining ring plate 5, and the first extension portion 51 is overlapped on the top surface of the sleeve base 1.

[0033] Furthermore, in order to better protect the top of the sleeve base 1 , a second extension portion 52 extending downward is provided on the outer edge of the first extension portion 51 ; that is, the second extension portion 52 is located outside the sleeve base 1 .

[0034] Furthermore, the outer wall of the top of the sleeve base 1 is provided with an annular notch 13, and the second extension portion 52 is inserted into the corresponding annular notch 13; wherein the outer wall of the second extension portion 52 is flush with the outer wall of the sleeve base 1.

[0035] Due to the setting of the top lining ring plate 5, it can replace the top of the sleeve base 1 to receive the direct impact of the material when feeding, thereby realizing the function of protecting the top of the sleeve base 1, and when the top lining ring plate 5 is damaged, it can be replaced separately, which increases the service life of the sleeve base 1 and reduces the cost of use.

[0036] Example 3, combined with the attached Figure 1-5 A steel fiber castable preform for an aluminum melting furnace, based on the first embodiment, has the upper ends of the spacer columns 3 extending to the top of the sleeve base 1. Multiple middle lining plates 4 are evenly spaced around the inner cavity of the sleeve base 1 along its circumference. The middle lining plates 4 are alternately arranged with the spacer columns 3 and engage with each other. Specifically, the cross-sectional shape of the middle lining plates 4 is the same as the cross-sectional shape of the main body of the bottom lining plate 2. Specifically, the bottom surface of the middle lining plates 4 is in contact with the top surface of the bottom lining plate 2.

[0037] A snap-fitting groove 41 is defined in the middle of the lower section of the outer wall of the middle inner lining plate 4. A matching snap-fitting block 12 is provided on the inner wall of the sleeve base 1 at a position corresponding to the snap-fitting groove 41. This block 12 supports the top surface of the snap-fitting groove 41, thereby supporting the height of the middle inner lining plate 4 and reducing the pressure exerted by the middle inner lining plate 4 on the bottom inner lining plate 2. The height of the snap-fitting block 12 can be less than or equal to the height of the snap-fitting groove 41, as desired.

[0038] As required, the engaging block 12 and the engaging groove 41 may be T-shaped or dovetail-shaped.

[0039] In this embodiment, when there is a top lining ring plate 5: an inner ring groove is provided on the inner side of the top of the combination of the middle lining plate 4 and the spacer column 3; that is, the top lining ring plate 5 is correspondingly located in the inner ring groove.

[0040] This arrangement can replace the friction between the sleeve base 1 and the material through the combination of the spacer column 3 and the middle inner lining plate 4, thereby ensuring the function of protecting the interior of the sleeve base 1, and when the spacer column 3 and the middle inner lining plate 4 are damaged, they can be replaced separately, which increases the service life of the sleeve base 1 and reduces the cost of use.

[0041] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A steel fiber castable preform for an aluminum melting furnace, characterized by: The invention comprises a sleeve base (1), wherein the bottom of the inner cavity of the sleeve base (1) is provided with a plurality of bottom lining plates (2) and spacer columns (3) at even intervals along its circumference, wherein the bottom lining plates (2) and spacer columns (3) are alternately arranged and mutually engaged; a guard plate portion (21) is integrally formed on the lower end surface of the bottom lining plate (2), and all the guard plate portions (21) form an annular plate, and the outer diameter of the annular plate matches the outer diameter of the sleeve base (1); Wherein, a snap-fit ​​structure is provided between the inner wall of the sleeve base (1) and the outer wall of the bottom lining plate (2).

2. The steel fiber castable preform for an aluminum melting furnace according to claim 1, characterized in that: The engaging structure comprises a slot (22) provided in the middle of the outer wall of the bottom inner lining plate (2); a matching block (11) is provided at a position on the inner wall of the sleeve base (1) corresponding to the slot (22); and the top surface of the block (11) is an inclined surface with an inner side lower than an outer side.

3. The steel fiber castable preform for an aluminum melting furnace according to claim 1, characterized in that: The upper end of the spacer column (3) extends to the top of the sleeve base (1); the inner cavity of the sleeve base (1) is provided with a plurality of middle inner lining plates (4) at even intervals along its circumference, and the middle inner lining plates (4) and the spacer columns (3) are alternately arranged and engaged with each other.

4. The steel fiber castable preform for an aluminum melting furnace according to claim 3, characterized in that: A snap-fitting groove (41) is provided at the middle position of the lower section of the outer wall of the middle inner lining plate (4), and a snap-fitting block (12) matching the snap-fitting groove (41) is provided at a position on the inner wall of the sleeve base (1) corresponding to the snap-fitting groove (41).

5. The steel fiber castable preform for an aluminum melting furnace according to claim 3, characterized in that: An inner ring groove is provided on the inner side of the top of the assembly of the middle inner lining plate (4) and the spacer column (3).

6. The steel fiber castable preform for an aluminum melting furnace according to claim 1 or 5, characterized in that: A top inner lining ring plate (5) is provided at the top of the inner cavity of the sleeve base (1), and a first extension portion (51) extending outward is provided at the top of the top inner lining ring plate (5), and the first extension portion (51) is overlapped with the top surface of the sleeve base (1).

7. The steel fiber castable preform for an aluminum melting furnace according to claim 6, characterized in that: A second extension portion (52) extending downward is provided on the outer edge of the first extension portion (51).

8. The steel fiber castable preform for an aluminum melting furnace according to claim 7, characterized in that: An annular notch (13) is provided on the outer wall of the top of the sleeve base (1), and the second extension portion (52) is correspondingly inserted into the annular notch (13).

9. The steel fiber castable preform for an aluminum melting furnace according to claim 8, characterized in that: The outer wall of the second extension portion (52) is flush with the outer wall of the sleeve base (1).

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