Feed inlet structure with double-layer brick arch for side-blown converter

Abstract

The utility model provides a feed port structure with a double-layer brick arch for a side-blown furnace. The feed port structure comprises a channel hole which is formed in a furnace body and is communicated with the inside and the outside of the furnace body, an upper-stage double-layer brick arch is arranged on the upper portion in the channel hole, side wall double-layer brick arches are arranged on the left side and the right side of the channel hole, and a feeding port is defined by the upper-stage double-layer brick arch and the side wall double-layer brick arches arranged on the two sides. The upper-stage double-layer brick arch is of a first arc-shaped structure protruding upwards, the side wall double-layer brick arch on the left side is of a second arc-shaped structure protruding leftwards, and the side wall double-layer brick arch on the right side is of a third arc-shaped structure protruding rightwards. The feeding port defined by the upper-stage double-layer brick arch and the side wall double-layer brick arches arranged on the two sides is of a double-layer brick arch structure, the stability and safety of the feeding port of the furnace body can be remarkably improved, the upper-stage double-layer brick arch can provide additional supporting force, the feeding port can bear the weight of materials more stably, and due to the arrangement of the double-layer brick arches, the feeding port can bear the weight of the materials more stably. The abrasion and corrosion speed of the feeding hole can be reduced, so that the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of side-blown furnace technology, specifically a side-blown furnace with a feed inlet structure featuring a double-layer brick arch. Background Technology

[0002] A side-blown converter is a steelmaking method in which air or oxygen is blown into the side of the converter to oxidize and remove impurities from the molten iron and provide heat to obtain steel. Depending on the converter lining material and the type of oxidizing gas used, there are three types of side-blown converter steelmaking: air-blown acidic converter steelmaking (i.e., the small-scale Bessemer process), air-blown basic converter steelmaking, and oxygen-blown converter steelmaking.

[0003] Side-blown furnace feed inlets are typically supported horizontally by a single layer of bricks. However, when the feed inlet is enlarged to facilitate material feeding, the load-bearing capacity of this single layer of bricks is relatively poor. Due to the impact force of the feed and the weight of the material, the single layer of bricks may be unable to withstand the corresponding pressure, leading to deformation, cracks, or even damage. This not only affects the smoothness of the feed, causing obstruction or uneven feeding, but also... Utility Model Content

[0004] The purpose of this utility model is to provide a feed inlet structure with a double-layer brick arch for a side-blown furnace, which aims to solve the problem that in the prior art, a single layer of bricks may not be able to withstand the corresponding pressure, resulting in deformation, cracks or even damage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: the feed inlet structure of the side-blown furnace with a double-layer brick arch includes a channel hole for opening in the furnace body to connect the inside and outside of the furnace body;

[0006] The upper part of the channel hole is provided with an upper double-layer brick arch, and the left and right sides of the channel hole are provided with side wall double-layer brick arches. The upper double-layer brick arch and the side wall double-layer brick arches on both sides form a feed inlet.

[0007] The upper double-layer brick arch is a first arc-shaped structure that bulges upwards, the left side wall double-layer brick arch is a second arc-shaped structure that bulges to the left, and the right side wall double-layer brick arch is a third arc-shaped structure that bulges to the right.

[0008] Preferably, the channel hole is a rectangular frame structure with internal and external connections, and the upper double-layer brick arch and the side wall double-layer brick arch are located inside the rectangular frame structure.

[0009] Preferably, an L-shaped connecting plate is fixedly provided on the left and right inner sidewalls of the rectangular frame structure near the ground, and a horizontal plate is fixedly provided on the left and right inner sidewalls of the rectangular frame structure near the upper double-layer brick arch, and the double-layer brick arch of the sidewall is installed between the connecting plate and the horizontal plate.

[0010] Preferably, the upper part of the horizontal plate is fixed with a top mounting plate, which is located in the rectangular frame structure and close to the inner top wall;

[0011] The third plug-in hole is provided on the horizontal plate, the third threaded groove is provided on the bottom of the top mounting plate, the third plug-in hole is provided with the third bolt, and the third bolt is threadedly matched with the third plug-in hole and the third threaded groove to mount the top mounting plate on the horizontal plate.

[0012] Preferably, the upper double-layer brick arch is arranged on the top mounting plate.

[0013] Preferably, the top mounting plate and the upper double-layer brick arch are filled with the first mud.

[0014] Preferably, the space formed by the side wall double-layer brick arch and the connecting plate and the horizontal plate is filled with the second mud.

[0015] Beneficial effects are: 1. The upper double-layer brick arch and the side wall double-layer brick arch arranged on both sides form the feeding port, and the double-layer brick arch structure can significantly improve the stability and safety of the feeding port of the furnace body, the upper double-layer brick arch can provide additional support force, so that the feeding port is more stable under the weight of the material, and the wear and corrosion speed of the feeding port is reduced due to the arrangement of the double-layer brick arch, thereby prolonging the service life.

[0016] 2. The arrangement of the side wall double-layer brick arch can effectively convert the vertical load into horizontal thrust, thereby enhancing the stability and carrying capacity of the wall. When a larger vertical load is borne, the load can be uniformly distributed to both sides of the wall through the action of the arch, thereby reducing the deformation and damage risk of the wall. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the channel hole distribution of the utility model;

[0018] Figure 2 It is a structure schematic view of the A place of the utility model Figure 1 ;

[0019] Figure 3 It is a structure schematic view of the B place of the utility model Figure 1 ;

[0020] Figure 4 It is a structure schematic view of the upper double-layer brick arch brick distribution of the utility model.

[0021] In the drawing: 1, furnace body; 3, channel hole; 4, upper double-layer brick arch; 5, side wall double-layer brick arch; 8, first mud; 9, second mud; 10, top mounting plate; 11, connecting plate; 12, horizontal plate. DETAILED DESCRIPTION

[0022] The specific embodiments of the utility model will be further described below in combination with the drawings.

[0023] As Figures 1-4 shown, a side-blown furnace has a feed inlet structure with double-layer brick arches, mainly used to make the feed inlet of the furnace body 1 more stable.

[0024] In this embodiment, the feed inlet structure with double-layer brick arches of the side-blown furnace includes a passage hole 3 for being opened in the furnace body 1 to communicate the inside and outside of the furnace body 1.

[0025] As Figure 1 shown, the upper part of the passage hole 3 is provided with a superior double-layer brick arch 4, and the left and right sides of the passage hole 3 are provided with side wall double-layer brick arches 5. The superior double-layer brick arch 4 and the side wall double-layer brick arches 5 arranged on both sides form a feed inlet. The material is sent into the furnace body 1 through the feed inlet. The feed inlet adopts a double-layer brick arch structure, which can significantly improve the stability and safety of the feed inlet of the furnace body 1.

[0026] Specifically, the passage hole 3 is a rectangular frame structure that is connected internally and externally, and the superior double-layer brick arch 4 and the side wall double-layer brick arches 5 are arranged in the rectangular frame structure.

[0027] As Figure 1 and Figure 3 shown, an L-shaped connecting plate 11 is fixedly arranged on the left and right inner side walls of the rectangular frame structure near the ground, a second plug-in hole is formed in the connecting plate 11, a second threaded groove is formed in the side wall of the rectangular frame structure, a second bolt is inserted into the plug-in hole, and the second bolt is threadedly matched with the second threaded groove through the plug-in hole to fixedly install the connecting plate 11 in the rectangular frame structure. A horizontal plate 12 is fixedly arranged on the left and right inner side walls of the rectangular frame structure near the superior double-layer brick arch 4. A first bolt hole is formed in one side of the horizontal plate 12, and a first bolt groove is formed in the rectangular frame structure corresponding to the first bolt hole. The horizontal plate 12 is fixed on the side wall of the rectangular frame structure by matching the first bolt hole in the horizontal plate 12 with the first bolt groove in the rectangular frame structure through the first bolt. The side wall double-layer brick arch 5 is arranged between the connecting plate 11 and the horizontal plate 12. After the connecting plate 11 and the horizontal plate 12 are fixed, the side wall double-layer brick arch 5 is assembled between the connecting plate 11 and the horizontal plate 12, and the space formed by the side wall double-layer brick arch 5, the connecting plate 11 and the horizontal plate 12 is filled with second mud 9, so as to improve the stability of the side wall double-layer brick arch 5.

[0028] As Figure 1 and Figure 2As shown, the upper part of the horizontal plate 12 is fixedly provided with a top mounting plate 10 located in the rectangular frame structure close to the inner top wall; the horizontal plate 12 is provided with a third plug-in hole penetrating up and down, the bottom of the top mounting plate 10 is provided with a third threaded groove corresponding to the third plug-in hole, a third bolt is inserted in the third plug-in hole, and the third bolt is threadedly matched with the third threaded groove through the third plug-in hole, so as to install the top mounting plate 10 on the horizontal plate 12; after the top mounting plate 10 is fixed, the upper double-layer brick arch 4 is arranged on the top mounting plate 10, and the first mud 8 is filled between the top mounting plate 10 and the upper double-layer brick arch 4, so as to improve the stability of the upper double-layer brick arch 4.

[0029] The upper double-layer brick arch 4 is a first arc structure protruding upward, the left side wall double-layer brick arch 5 is a second arc structure protruding to the left, and the right side wall double-layer brick arch 5 is a third arc structure protruding to the right.

[0030] Working principle: the channel hole 3 is arranged on the furnace body 1 and communicates with the furnace body 1, then the second plug-in hole is arranged on the connecting plate 11, the second threaded groove corresponding to the plug-in hole is arranged on the side wall of the rectangular frame structure, the second bolt is inserted in the plug-in hole, and the second bolt is threadedly matched with the second threaded groove through the second plug-in hole, so as to fixedly install the connecting plate 11 in the rectangular frame structure, and the first bolt hole is arranged on one side of the horizontal plate 12, and the first bolt groove corresponding to the first bolt hole is arranged on the rectangular frame structure, the first bolt is matched with the first bolt hole on the horizontal plate 12 and the first bolt groove on the rectangular frame structure, so as to fix the horizontal plate 12 on the side wall of the rectangular frame structure; after the connecting plate 11 and the horizontal plate 12 are fixed, the side wall double-layer brick arch 5 is assembled between the connecting plate 11 and the horizontal plate 12, and the second mud 9 is filled in the space formed by the side wall double-layer brick arch 5, the connecting plate 11 and the horizontal plate 12; the third plug-in hole is arranged on the horizontal plate 12, the third threaded groove corresponding to the third plug-in hole is arranged on the bottom of the top mounting plate 10, the third bolt is inserted in the third plug-in hole, and the third bolt is threadedly matched with the third threaded groove through the third plug-in hole, so as to install the top mounting plate 10 on the horizontal plate 12; after the top mounting plate 10 is fixed, the upper double-layer brick arch 4 is arranged on the top mounting plate 10, and the first mud 8 is filled between the top mounting plate 10 and the upper double-layer brick arch 4, so as to improve the stability of the upper double-layer brick arch 4.

[0031] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than that of the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the related part of the claim.

Claims

1. A side-blown furnace with a feed inlet structure having a double-layered brick arch, characterized in that, Including for open in stove body (1) the passage hole (3) that communicates stove body (1) inside and outside, The upper side of the passage hole (3) is provided with an upper double-layer brick arch (4), and the left and right sides of the passage hole (3) are provided with side wall double-layer brick arches (5), the upper double-layer brick arch (4), the side wall double-layer brick arches (5) arranged on both sides form a feeding port; The upper double-layer brick arch (4) is a first arc structure protruding upward, the left side wall double-layer brick arch (5) is a second arc structure protruding to the left, and the right side wall double-layer brick arch (5) is a third arc structure protruding to the right.

2. The side-blown furnace feed port structure with a double-layer brick arch according to claim 1, characterized in that, The passage hole (3) is a rectangular frame structure connected inside and outside, and the upper double-layer brick arch (4) and the side wall double-layer brick arch (5) are arranged in the rectangular frame structure.

3. The side-blown furnace feed port structure with a double-layer brick arch according to claim 2, characterized in that, L-shaped connecting plates (11) are fixedly arranged on the left and right inner side walls of the rectangular frame structure near the ground, horizontal plates (12) are fixedly arranged on the left and right inner side walls of the rectangular frame structure near the upper double-layer brick arch (4), and the side wall double-layer brick arches (5) are installed between the connecting plates (11) and the horizontal plates (12).

4. The side-blown furnace feed port structure with a double-layer brick arch according to claim 3, characterized in that, A top mounting plate (10) is fixedly arranged above the horizontal plate (12), and the top mounting plate (10) is located near the inner top wall in the rectangular frame structure. A third plug-in hole penetrating up and down is formed in the horizontal plate (12), a third threaded groove corresponding to the third plug-in hole is formed in the bottom of the top mounting plate (10), a third bolt is inserted into the third plug-in hole, and the third bolt is threadedly matched with the third threaded groove through the third plug-in hole, so as to mount the top mounting plate (10) on the horizontal plate (12).

5. The side-blown furnace feed port structure with a double-layer brick arch according to claim 4, characterized in that, The upper double-layer brick arch (4) is arranged on the top mounting plate (10).

6. The side-blown furnace feed port structure with a double-layer brick arch according to claim 5, characterized in that, The top mounting plate (10) and the upper double-layer brick arch (4) are filled with first mud (8).

7. The side-blown furnace feed port structure with a double-layer brick arch according to claim 4, characterized in that, The space formed by the side wall double-layer brick arches (5), the connecting plates (11) and the horizontal plates (12) is filled with second mud (9).

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