High-temperature-resistant furnace cover sealing assembly of electric arc furnace

Abstract

The utility model discloses a high-temperature-resistant furnace cover sealing assembly of an electric arc furnace, which comprises a furnace cover main body and an electric arc head placing seat, and the electric arc head placing seat is connected inside the furnace cover main body. According to the utility model, the mounting groove is formed in the furnace cover main body, the electric arc head placing seat is placed in the mounting groove, and then the main supporting leg arranged on the electric arc head placing seat is fixed on the furnace cover main body through the fastening bolt, so that when the electric arc head placing seat needs to be replaced, a new accessory can be replaced by dismounting the fastening bolt; quick-wear parts can be installed and replaced in a split mode, and practicability and flexibility are improved; the discharging groove is formed in the furnace cover body, the discharging pipe is connected into the discharging groove, the discharging pipe is arranged to be a long pipe, and the buffering plates arranged in the discharging pipe are obliquely arranged in a front-back opposite mode, so that during working, a discharging channel is not prone to being blocked by metal melt moving at the high temperature of the bottom, and meanwhile the discharging buffering purpose can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of furnace cover sealing technology for electric arc furnaces, and in particular to a furnace cover sealing assembly for a high-temperature resistant electric arc furnace. Background Technology

[0002] An electric arc furnace is an electric furnace that uses the temperature generated by an electric arc on electrodes to smelt ores and metals. During smelting, the electric arc furnace can both discharge the smoke inside the furnace and continue feeding materials.

[0003] Chinese Patent Publication No. CN 215638797 U discloses a furnace cover structure for an electric arc furnace body, including an upper connecting layer, a high-temperature resistant inner liner, and a snap-fit ​​assembly. The snap-fit ​​assembly includes snap-fit ​​connectors arranged in a circumferential array on the outer wall below the upper connecting layer and several snap-fit ​​seats arranged on the outer wall above the high-temperature resistant inner liner. The snap-fit ​​assembly is assembled to allow the high-temperature resistant inner liner to be axially installed on the outer wall of one side of the upper connecting layer. This utility model provides a furnace cover structure for an electric arc furnace body. The furnace cover is divided into an upper connecting layer and a high-temperature resistant inner liner. A snap-fit ​​assembly is provided between the upper connecting layer and the high-temperature resistant inner liner. The snap-fit ​​connectors are connected to the snap-fit ​​seats to connect the upper connecting layer and the high-temperature resistant inner liner. Bolts installed in the bolt holes are connected to the fixing holes for fixation. When the high-temperature resistant inner liner reaches the end of its service life, the high-temperature resistant inner liner can be disassembled from the upper connecting layer and the high-temperature resistant inner liner can be replaced, avoiding the resource waste caused by replacing the integrated furnace cover.

[0004] The existing technical solutions have the following shortcomings: the arc holder is easily damaged during use, and the integrated design requires a lot of cost to replace. Secondly, during the feeding process, since the electric arc furnace contains high-temperature liquid, the feeding port design is too simple and is prone to safety accidents. Therefore, there is room for optimization. This paper proposes a new type of high-temperature resistant electric arc furnace cover sealing assembly to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a furnace cover sealing component for a high-temperature resistant electric arc furnace, so as to solve the problems of the integrated solution proposed in the background art, which requires a lot of cost for replacement and the overly simple design of the material discharge port is prone to safety accidents.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a furnace cover sealing assembly for a high-temperature resistant electric arc furnace, comprising a furnace cover body and an arc head mounting seat. The arc head mounting seat is connected to the interior of the furnace cover body. The interior of the furnace cover body has three sets of support grooves and an installation groove. Three sets of main support legs are fixed to the outer side of the arc head mounting seat, and fastening bolts are fixed through the interior of the main support legs. The fastening bolts are threadedly connected to the furnace cover body. The interior of the arc head mounting seat has a graphite groove and a smoke pipe is connected to the interior of the arc head mounting seat. The interior of the furnace cover body has a material feeding groove, and a material feeding pipe is connected to the top of the material feeding groove. The bottom end of the furnace cover body 1 has a furnace opening connecting groove, and sealing strips are evenly distributed inside the furnace opening connecting groove. A furnace body is located below the furnace cover body.

[0007] Preferably, the arc head mounting base has a feeding groove inside, and the feeding groove has an internal thread, while the feeding tube has an external thread on its outer side.

[0008] Preferably, handles are fixed on both sides of the furnace cover body, and rectangular slots are provided inside the handles.

[0009] Preferably, a furnace opening limiting block is fixed at the top of the furnace body, and the size of the furnace opening limiting block matches the size of the furnace opening connecting groove.

[0010] Preferably, the arc head mounting base is made of high-temperature resistant and anti-electrical material, and three sets of graphite grooves are provided.

[0011] Preferably, the inside of the feeding pipe is uniformly provided with buffer plates, and there are two sets of buffer plates, which are arranged in an alternating pattern inside the feeding pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the furnace cover sealing assembly of this high-temperature resistant electric arc furnace not only realizes the detachable installation and replacement of vulnerable parts and stable material feeding, but also achieves good sealing performance;

[0013] By opening an installation groove inside the furnace cover body, the arc head mounting seat is placed in the installation groove, and the main support legs of the arc head mounting seat are fixed to the furnace cover body with fastening bolts. When the arc head mounting seat needs to be replaced, the fastening bolts can be removed to replace the new parts. This realizes the detachable installation and replacement of vulnerable parts, improving practicality and flexibility.

[0014] By opening a feeding trough inside the furnace cover body, the feeding pipe is connected to the feeding trough. Since the feeding pipe is a long pipe and the buffer plate inside it is placed at an angle with opposite sides, the feeding channel is not easily blocked by the molten metal moving around at high temperature at the bottom during operation, and it can also serve as a feeding buffer.

[0015] By creating a furnace opening connection groove inside the furnace cover body, and installing multiple sets of surrounding sealing strips inside, the furnace cover body is connected to the furnace opening limiting block set at the top of the furnace body, thus achieving the beneficial effect of good sealing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the furnace cover body of this utility model;

[0020] Figure 4 This is an enlarged structural diagram of the furnace opening limiting block of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the furnace body of this utility model.

[0022] The following are the labels in the attached diagram: 1. Furnace cover body; 2. Handle; 3. Fastening bolt; 4. Arc head mounting seat; 5. Smoke pipe; 6. Feed chute; 7. Graphite trough; 8. Support leg groove; 9. Feed pipe; 10. Buffer plate; 11. Mounting groove; 12. Main support leg; 13. Sealing strip; 14. Furnace opening connection groove; 15. Furnace opening limit block; 16. Furnace body. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Please see Figures 1-5 One embodiment of this utility model is a furnace cover sealing assembly for a high-temperature resistant electric arc furnace, comprising a furnace cover body 1 and an electric arc head mounting seat 4.

[0025] The arc head mounting base 4 has a feeding groove 6 inside, and the feeding groove 6 has an internal thread. The feeding tube 9 has an external thread on the outside. The arc head mounting base 4 is made of high temperature resistant and anti-electric material. There are three sets of graphite grooves 7.

[0026] Specifically, such as Figure 1 As shown, when in use, the electrode is inserted into the graphite groove 7. The arc head mounting base 4 is made of high temperature resistant and anti-electrical materials, making it safer and more durable. The design of internal and external threads facilitates the installation of the feeding tube 9.

[0027] The arc head mounting base 4 is connected to the inside of the furnace cover body 1;

[0028] Handles 2 are fixed on both sides of the furnace cover body 1, and rectangular slots are provided inside the handles 2.

[0029] Specifically, such as Figure 3 As shown, when in use, the machine is used to grab handle 2 and place it at the furnace opening;

[0030] The furnace cover body 1 has three sets of support grooves 8 inside, and an installation groove 11 inside. The outer side of the arc head mounting seat 4 is fixed with three sets of main support legs 12, and fastening bolts 3 are fixed through the inside of the main support legs 12. The fastening bolts 3 are threadedly connected to the furnace cover body 1. The arc head mounting seat 4 has a graphite groove 7 inside, and a smoke pipe 5 is connected inside the arc head mounting seat 4. The furnace cover body 1 has a material feeding groove 6 inside, and a material feeding pipe 9 is connected to the top of the material feeding groove 6.

[0031] The inside of the feeding pipe 9 is uniformly provided with buffer plates 10, and there are two sets of buffer plates 10. The buffer plates 10 are arranged in an alternating manner inside the feeding pipe 9.

[0032] Specifically, such as Figure 2 As shown, during use, the material is fed from the feed pipe 9 and enters the furnace after being buffered by the buffer plate 10;

[0033] A furnace opening connecting groove 14 is provided at the bottom of the furnace cover body 1, and sealing strips 13 are evenly arranged inside the furnace opening connecting groove 14. A furnace body 16 is provided below the furnace cover body 1.

[0034] A furnace opening limiting block 15 is fixed at the top of the furnace body 16, and the size of the furnace opening limiting block 15 matches the size of the furnace opening connecting groove 14.

[0035] Specifically, such as Figure 2 As shown, during use, the furnace opening limiting block 15 and the furnace opening connecting groove 14 facilitate the connection and assembly between the upper and lower components.

[0036] Working principle: When using this utility model, first place the arc head mounting base 4 in the mounting groove 11, and then fix the main support leg 12 of the arc head mounting base 4 to the furnace cover body 1 with fastening bolts 3. When the arc head mounting base 4 needs to be replaced, the fastening bolts 3 can be removed to replace the new parts, realizing the detachable installation and replacement of vulnerable parts. When in use, a feeding groove 6 is opened inside the furnace cover body 1, and the feeding pipe 9 is connected to the feeding groove 6. Since the feeding pipe 9 is a long pipe and the buffer plate 10 inside it is placed at an angle with opposite sides, it is not easy for the feeding channel to be blocked by the molten metal moving at high temperature at the bottom during operation, and it can also serve as a feeding buffer.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A furnace cover sealing assembly for a high-temperature resistant electric arc furnace, comprising a furnace cover body (1) and an electric arc head mounting seat (4), wherein the electric arc head mounting seat (4) is connected to the interior of the furnace cover body (1); Its features are: The furnace cover body (1) has three sets of support grooves (8) inside. The furnace cover body (1) has an installation groove (11) inside. The arc head mounting seat (4) has three sets of main support legs (12) fixed on the outside. The main support legs (12) are fixed with fastening bolts (3) through them. The fastening bolts (3) are threaded to the furnace cover body (1). The arc head mounting seat (4) has a graphite groove (7) inside. The arc head mounting seat (4) is connected with a smoke pipe (5). The furnace cover body (1) has a material feeding groove (6) inside. The top of the material feeding groove (6) is connected with a material feeding pipe (9). The furnace cover body (1) has a furnace mouth connecting groove (14) at the bottom. The furnace mouth connecting groove (14) is evenly provided with sealing strips (13). The furnace body (16) is located below the furnace cover body (1).

2. The furnace cover sealing assembly for a high-temperature resistant electric arc furnace according to claim 1, characterized in that: The arc head mounting base (4) has a feeding groove (6) inside, and the feeding groove (6) has an internal thread, while the feeding tube (9) has an external thread on the outside.

3. The furnace cover sealing assembly for a high-temperature resistant electric arc furnace according to claim 1, characterized in that: Both sides of the furnace cover body (1) are fixed with handles (2), and the inside of each handle (2) is provided with a rectangular slot.

4. The furnace cover sealing assembly for a high-temperature resistant electric arc furnace according to claim 1, characterized in that: The top of the furnace body (16) is fixed with a furnace opening limiting block (15), and the size of the furnace opening limiting block (15) matches the size of the furnace opening connecting groove (14).

5. The furnace cover sealing assembly for a high-temperature resistant electric arc furnace according to claim 1, characterized in that: The arc head mounting base (4) is made of high temperature resistant and anti-electric material, and the graphite groove (7) is provided in three sets.

6. The furnace cover sealing assembly for a high-temperature resistant electric arc furnace according to claim 1, characterized in that: The feed tube (9) is uniformly provided with buffer plates (10), and there are two sets of buffer plates (10). The buffer plates (10) are arranged in an alternating pattern inside the feed tube (9).

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