Abrasion-resistant smelting furnace lining

Abstract

The utility model relates to the technical field of smelting furnaces, in particular to an abrasion-resistant smelting furnace lining which comprises a base. A fixing ring is arranged between the two clamping rings, and a plurality of second inserting holes are formed in the upper end and the lower end of the fixing ring; second sealing edges are coaxially fixed to the upper end and the lower end of the fixing ring correspondingly, two second threaded columns are fixed to the outer wall of the fixing ring correspondingly, and second nuts are in threaded connection to the second threaded columns correspondingly. By arranging the base, the clamping rings, the fixing rings, the lining rings and the pulling plates, the multiple lining plates are directly connected and matched with the clamping rings and the fixing rings on the upper side and the lower side in an inserted mode, rapid installation and fixation of the lining rings, the clamping rings and the fixing rings can be achieved, the pulling plates on the two sides are clamped to the two sides of the base, the clamping rings, the fixing rings and the lining rings, and under the action of the multiple first nuts and the multiple second nuts, the clamping rings and the fixing rings can be rapidly installed and fixed. The pulling plates on the two sides can clamp the base, the clamping ring, the fixing ring and the bushing ring; according to the design, the furnace lining can be conveniently assembled, and the furnace lining has the advantages of being convenient and labor-saving to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting furnaces, in particular to a wear-resistant smelting furnace lining. Background Art

[0002] A smelting furnace is a device used to melt raw materials such as ore or scrap steel to extract metals or alloys from them. It is usually a large steel cylinder with a three-layer structure inside, and the inner wall is lined with special refractory materials to prevent high temperature erosion. The working principle of a smelting furnace is to heat the raw materials to a high temperature by burning and heating, so that the oxides in the ore are reduced to metals, or the scrap steel is melted and then refined. The lining of a smelting furnace is a layer of furnace building materials in the furnace chamber used to protect the furnace shell and resist the erosion of high-temperature furnace gas. The lining is usually composed of refractory materials, thermal insulation materials and fillers.

[0003] The utility model patent with the authorization announcement number CN205316988U discloses a combined furnace lining of a long-life submerged arc furnace, which includes a steel plate, a heat insulation layer, a heat insulating layer, a heat preservation layer and a high-temperature working layer, wherein the high-temperature working layer is composed of an upper carbon brick layer, a middle carbon brick layer and a lower carbon brick layer overlapped in sequence, and the angle between the brick seams of the upper carbon brick layer and the middle carbon brick layer is 60 degrees, and the angle between the brick seams of the middle carbon brick layer and the brick seams of the lower carbon brick layer is 60 degrees. The combined furnace lining of the utility model makes the service life of the furnace lining reach more than 5 years, realizes long-term continuous production as much as possible, improves the utilization rate of the electric furnace, and also reduces various consumptions caused by shutdown, greatly reducing production costs.

[0004] Although the combined furnace lining of the long-life electric arc furnace is conducive to long-term continuous production and is conducive to reducing production costs, the device still has the following problems in actual use: when installing the furnace lining, it is necessary to lay a multi-layer structure such as an upper carbon brick layer, a middle carbon brick layer and a lower carbon brick layer. The carbon brick layer, the middle carbon brick layer and the lower carbon brick layer are composed of multiple bricks, and the laying process is complicated, which makes the assembly of the furnace lining time-consuming and labor-intensive. In view of this, we propose a wear-resistant smelting furnace lining. Utility Model Content

[0005] The utility model aims to provide a wear-resistant smelting furnace lining to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A wear-resistant smelting furnace lining, comprising a base;

[0008] Two symmetrically arranged clamping rings are arranged above the base, and the base is fixedly connected to the clamping ring at the bottom by bolts; a plurality of first plug holes are provided on two opposite end surfaces of the two clamping rings, and first sealing edges are coaxially fixed on two opposite end surfaces of the two clamping rings; two symmetrical first threaded columns are fixed on the outer wall of the clamping ring, and first nuts are threadedly connected on the first threaded columns;

[0009] A fixing ring is provided between the two clamping rings, and a plurality of second plug holes are provided at both upper and lower ends of the fixing ring; second sealing edges are coaxially fixed at both upper and lower ends of the fixing ring, and two second threaded columns are fixed on the outer wall of the fixing ring, and second nuts are threadedly connected on the second threaded columns;

[0010] A lining ring is installed between the clamp ring and the fixed ring. The lining ring includes a plurality of lining plates spliced ​​together. Two plugs are fixed on the top and bottom of the lining plates, and the plugs are respectively plugged with the first and second jacks on the upper and lower sides. A wear-resistant layer is provided on the arc-shaped inner wall of the lining ring.

[0011] Pull plates are provided on both the front and rear sides of the fixing ring, the first threaded column and the second threaded column both pass through the pull plates, and the first nut and the second nut both press against the outer wall of the pull plates.

[0012] Preferably, an insert strip is provided at one end of the lining plate, and a connecting groove is provided at the other end of the lining plate, and the insert strip is plug-fitted with an adjacent connecting groove.

[0013] Preferably, the lining plate, the insert strip and the plug are an integrally formed structure, and the overall shape of the lining plate is arc-shaped.

[0014] Preferably, the clamp ring and the first sealing edge are an integrally formed structure, and the overall shape of the first sealing edge is annular.

[0015] Preferably, the fixing ring and the second sealing edge are an integrally formed structure, and the overall shape of the second sealing edge is annular.

[0016] Preferably, two concentrically arranged connecting rings are coaxially fixed to the top of the base, a sealing groove is provided at the bottom of the clamping ring located below, and the connecting ring is plugged into and fits with the sealing groove.

[0017] Preferably, the overall shape of the pull plate is arc-shaped, and the inner wall of the pull plate fits with the outer wall of the clamp ring and the outer wall of the fixing ring.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] By arranging the base, clamping ring, fixing ring, lining ring and pulling plate, multiple lining plates are directly plugged into and matched with the clamping rings and fixing rings on the upper and lower sides, so that the lining rings, clamping rings and fixing rings can be quickly installed and fixed, and the pulling plates on both sides are clamped at the two sides of the base, clamping ring, fixing ring and lining ring, and under the action of multiple first nuts and second nuts, the pulling plates on both sides can clamp the base, clamping ring, fixing ring and lining ring; this design is convenient for assembling the furnace lining and has the advantages of easy and labor-saving operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall explosion structure of the utility model;

[0022] Figure 3 It is a schematic diagram of a part of the explosion structure in the utility model;

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

[0024] Figure 5 It is a structural schematic diagram of the fixing ring in the utility model;

[0025] Figure 6 This is a schematic diagram of the explosion structure of the liner ring in the utility model;

[0026] Figure 7 It is a structural cross-sectional view of the lining plate of the utility model.

[0027] In the figure:

[0028] 1. Base; 10. Connecting ring;

[0029] 2. Clamp ring; 20. First threaded column; 21. First nut; 22. First sealing edge; 23. First insertion hole; 24. Sealing groove;

[0030] 3. fixing ring; 30. second sealing edge; 31. second threaded column; 32. second nut; 33. second plug hole;

[0031] 4. lining ring; 40. lining plate; 41. plug; 42. connecting groove; 43. insert strip; 44. wear-resistant layer;

[0032] 5. Pull the board. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] This embodiment provides a technical solution:

[0035] See also Figure 1-Figure 7 As shown, a wear-resistant smelting furnace lining includes a base 1. Two symmetrically arranged clamping rings 2 are arranged above the base 1, and the base 1 is fixedly connected to the clamping ring 2 at the bottom by bolts; a plurality of first plug holes 23 are provided on two opposite end surfaces of the two clamping rings 2, and first sealing edges 22 are coaxially fixed on two opposite end surfaces of the two clamping rings 2; two symmetrical first threaded columns 20 are fixed on the outer wall of the clamping ring 2, and first nuts 21 are threadedly connected to the first threaded columns 20. A fixing ring 3 is provided between the two clamping rings 2, and a plurality of second plug holes 33 are provided at the upper and lower ends of the fixing ring 3; second sealing edges 30 are coaxially fixed at the upper and lower ends of the fixing ring 3, and two second threaded columns 31 are fixed on the outer wall of the fixing ring 3, and second nuts 32 are threadedly connected on the second threaded columns 31; a liner ring 4 is installed between the clamping ring 2 and the fixing ring 3, and the liner ring 4 includes a plurality of lining plates 40 spliced ​​to each other, and two plugs 41 are fixed at the top and bottom ends of the lining plates 40, and the plugs 41 are respectively plugged and matched with the first plug holes 23 and the second plug holes 33 on the upper and lower sides; a wear-resistant layer 44 is provided on the arc-shaped inner wall of the liner ring 4; pull plates 5 are provided on the front and rear sides of the fixing ring 3, and the first threaded column 20 and the second threaded column 31 both pass through the pull plate 5, and the first nut 21 and the second nut 32 are pressed against the outer wall of the pull plate 5.

[0036] In this embodiment, an insert strip 43 is provided at one end of the liner 40, and a connection groove 42 is provided at the other end of the liner 40, and the insert strip 43 is plugged into and matched with the adjacent connection groove 42. The plugging and matching of the insert strip 43 and the connection groove 42 can improve the sealing between the two liner plates 40, and further improve the sealing of the furnace lining.

[0037] In this embodiment, the lining plate 40, the insert strip 43 and the plug 41 are integrally formed, and the overall shape of the lining plate 40 is arc-shaped. The integrally formed lining plate 40, the insert strip 43 and the plug 41 have better connection strength, ensuring the service life of the lining plate 40, the insert strip 43 and the plug 41, and the arc-shaped setting is conducive to multiple lining plates 40 being surrounded in a ring shape.

[0038] In this embodiment, the clamp ring 2 and the first sealing edge 22 are integrally formed, and the overall shape of the first sealing edge 22 is annular. The integrally formed clamp ring 2 and the first sealing edge 22 have better connection strength, ensuring the service life of the clamp ring 2 and the first sealing edge 22, and the annular first sealing edge 22 can provide connection sealing between the clamp ring 2 and the liner ring 4.

[0039] In this embodiment, the fixing ring 3 and the second sealing edge 30 are an integrally formed structure, and the overall shape of the second sealing edge 30 is annular. This design can improve the structure of the fixing ring 3 and the second sealing edge 30, thereby ensuring the service life of the fixing ring 3 and the second sealing edge 30. The annular second sealing edge 30 can provide sealing performance for the connection between the fixing ring 3 and the liner ring 4.

[0040] In this embodiment, two concentrically arranged connecting rings 10 are coaxially fixed on the top of the base 1, a sealing groove 24 is provided at the bottom of the clamping ring 2 located below, and the connecting ring 10 is plugged into and matched with the sealing groove 24. This design can increase the sealing performance of the connection between the base 1 and the clamping ring 2, and thus improve the sealing performance of the furnace lining.

[0041] In this embodiment, the overall shape of the pull plate 5 is arc-shaped, and the inner wall of the pull plate 5 fits the outer wall of the clamp ring 2 and the outer wall of the fixing ring 3. This design facilitates the pull plate 5 to better fix the clamp ring 2 and the fixing ring 3, thereby ensuring the structural strength and stability of the furnace lining.

[0042] It can be understood that the wear-resistant layer 44 in this embodiment is made of zirconium oxide material, which has super strong mechanical wear resistance, acid and alkali corrosion resistance, and high temperature resistance. In the smelting furnace lining, it can provide good wear resistance, thereby ensuring the service life of the furnace lining.

[0043] It should be added that the connections between the lining plate 40 and the clamping ring 2 and the fixing ring 3 in this embodiment are coated with fire-proof putty. Fire-proof putty is a special material mainly used to prevent flames, heat or smoke from being transferred from one area to another. The use of this fire-proof putty in this embodiment can improve the sealing of the furnace lining.

[0044] When in use, the user first aligns the sealing groove 24 at the bottom of the clamp ring 2 with the connecting ring 10 and inserts it, and fixes the clamp ring 2 to the base 1 by bolts, then aligns the insert strip 43 on the lining plate 40 with the connecting groove 42 on the adjacent lining plate 40 and inserts it, and sequentially splices multiple lining plates 40, and then aligns the plug 41 at the bottom of multiple lining plates 40 with the first plug hole 23 on the clamp ring 2 and inserts it, and the lining ring 4 is installed on the top of the clamp ring 2, and at this time, the user aligns the second plug hole 33 on the fixing ring 3 with the plug 41 at the top of the lining plate 40 and inserts it. Next, the user re-assembles multiple lining plates 40, and aligns the plug 41 at the bottom of the re-assembled lining plate 40 with the second socket 33 on the top of the fixing ring 3 and inserts it. At the same time, the user takes out another clamp ring 2, and aligns the first socket 23 with the plug 41 on the top of the lining plate 40 and inserts it. Finally, the user passes the pull plate 5 through the first threaded column 20 and the second threaded column 31, and at the same time tightens the first nut 21 on the first threaded column 20, and tightens the second nut 32 on the second threaded column 31. The pull plate 5 is installed and fixed, and the furnace lining is assembled.

[0045] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wear-resistant smelting furnace lining, comprising a base (1), characterized in that: Two symmetrically arranged clamping rings (2) are provided above the base (1), and the base (1) and the clamping ring (2) located at the bottom are fixedly connected by bolts; two opposite end surfaces of the two clamping rings (2) are provided with a plurality of first insertion holes (23), and two opposite end surfaces of the two clamping rings (2) are coaxially fixed with first sealing edges (22); two symmetrical first threaded columns (20) are fixed to the outer wall of the clamping ring (2), and first nuts (21) are threadedly connected to the first threaded columns (20); A fixing ring (3) is provided between the two clamping rings (2), and a plurality of second insertion holes (33) are provided at both upper and lower ends of the fixing ring (3); second sealing edges (30) are coaxially fixed at both upper and lower ends of the fixing ring (3), and two second threaded columns (31) are fixed to the outer wall of the fixing ring (3), and second nuts (32) are threadedly connected to the second threaded columns (31); A lining ring (4) is installed between the clamp ring (2) and the fixing ring (3), and the lining ring (4) includes a plurality of lining plates (40) spliced ​​together. Two plugs (41) are fixed at the top and bottom of the lining plates (40), and the plugs (41) are respectively plugged into and matched with the first plug hole (23) and the second plug hole (33) at the upper and lower sides; the arc-shaped inner wall of the lining ring (4) is provided with a wear-resistant layer (44); A pull plate (5) is provided on both the front and rear sides of the fixing ring (3); the first threaded column (20) and the second threaded column (31) both pass through the pull plate (5); and the first nut (21) and the second nut (32) both press against the outer wall of the pull plate (5).

2. The wear-resistant smelting furnace lining according to claim 1 is characterized in that: One end of the lining plate (40) is provided with an inserting strip (43), and the other end of the lining plate (40) is provided with a connecting groove (42), and the inserting strip (43) is plugged into and matched with an adjacent connecting groove (42).

3. The wear-resistant smelting furnace lining according to claim 1 is characterized in that: The lining plate (40), the insert strip (43) and the plug (41) are an integrally formed structure, and the overall shape of the lining plate (40) is arc-shaped.

4. The wear-resistant smelting furnace lining according to claim 1 is characterized in that: The clamp ring (2) and the first sealing edge (22) are an integrally formed structure, and the overall shape of the first sealing edge (22) is ring-shaped.

5. The wear-resistant smelting furnace lining according to claim 1, characterized in that: The fixing ring (3) and the second sealing edge (30) are an integrally formed structure, and the overall shape of the second sealing edge (30) is annular.

6. The wear-resistant smelting furnace lining according to claim 1, characterized in that: Two concentrically arranged connecting rings (10) are coaxially fixed on the top of the base (1), a sealing groove (24) is provided at the bottom of the clamping ring (2) located below, and the connecting ring (10) is plugged into and matched with the sealing groove (24).

7. The wear-resistant smelting furnace lining according to claim 1 is characterized in that: The overall shape of the pull plate (5) is arc-shaped, and the inner wall of the pull plate (5) fits with the outer wall of the clamp ring (2) and the outer wall of the fixing ring (3).

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