Novel air seal device for blanking pipe of electric furnace

Abstract

The utility model discloses a novel air seal device for a blanking pipe of an electric furnace, and relates to the technical field of electric furnaces. The gas sealing device comprises a discharging pipe end and a gas sealing device body, the gas sealing device body comprises an outer shell, the outer shell is welded and fixed to the peripheral side face of the discharging pipe end, the outer shell and the discharging pipe end are concentric, a cavity is formed between the outer shell and the discharging pipe end, and the peripheral side face of the outer shell is connected with a gas supply end connected with the cavity and fixedly communicated with a plurality of end sleeves. The outer end part of the end sleeve is in threaded connection with a blanking cover; and a plurality of ports are formed in the peripheral side surface of the blanking pipe. Through the design of the blanking cover of the end sleeve, the outer shell is firstly welded and connected during installation, and after the outer shell is welded, the through hole in the blanking pipe is drilled through the end sleeve, so that a guiding effect is achieved, the position precision of the through hole is improved, and the precise installation of a subsequent pipe body is ensured; and the end post and the pipe body are convenient to mount, dismount, clean and maintain.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric furnace, in particular, a kind of novel electric furnace discharging pipe gas seal device. BACKGROUND

[0002] Auxiliary materials such as lime need to be added during electric furnace smelting, which are added into the electric furnace through the feeding system, and the electric furnace discharging pipe is a key link, since steel slag splashes into the discharging pipe during smelting in the electric furnace and sticks to the discharging pipe, auxiliary materials are prone to accumulate and block in the discharging pipe, thereby affecting normal feeding and the stability of the feeding system. SUMMARY

[0003] The utility model discloses a kind of novel electric furnace discharging pipe gas seal device, the design of the plug of end sleeve, first welding connection of shell is carried out when installing, after welding of shell is finished, the drilling of upper through-port of discharging pipe is carried out again by end sleeve, play guiding effect, improve the position accuracy of through-port, ensure the accurate installation of subsequent pipe body, the plug of screw connection, facilitate the installation and removal, cleaning and maintenance of end column and pipe body.

[0004] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0005] The utility model discloses a kind of novel electric furnace discharging pipe gas seal device, including discharging pipe end and gas seal device ontology;

[0006] The gas seal device ontology includes shell, the shell is welded and fixed on the circumferential surface of discharging pipe end, the shell is concentric with the discharging pipe end and forms cavity between them, the circumferential surface of shell is connected with the gas supply end connected with cavity;

[0007] The circumferential surface of shell is fixedly connected with several end sleeves, the outer end of end sleeve is connected with plug by screw, the circumferential surface of discharging pipe end is equipped with several through-ports, and the through-ports are concentric with the end sleeves, and the through-port is tangent to the inner wall of discharging pipe end;

[0008] Solid end column is movably connected in the end sleeve, one end of the end column is equipped with outer step, the outer step is fixed between plug and end sleeve, the other end of the end column is fixed with pipe body, the pipe body penetrates through-port and is equipped with nozzle inner core inside, and the circumferential surface of pipe body is equipped with notch communicated with cavity.

[0009] Further, the outer end of end sleeve is equipped with external thread, the plug is equipped with internal thread screw-connected with external thread in, and the outer end surface of plug is integrally equipped with hexagonal screwing end.

[0010] Further, the outer end surface of end sleeve is equipped with step groove inside, and the outer step is arranged in the step groove.

[0011] Further, the outer step and the end sleeve outer end face are flush, and a seal is arranged between the outer step, the end sleeve and the plug cover.

[0012] Further, the outer shell is provided with a connecting ring at both ends, and the connecting ring inner wall is welded and fixed with the blanking pipe end peripheral side surface.

[0013] Further, the outer shell is provided with a compressed air pipe at the gas supply end.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model discloses a shell body is installed to the outside of blanking pipe end, can form cavity for gas shunting, through the design cooperation of the upper end sleeve of shell body upper through -opening design on blanking pipe, can be used for the installation of end column and pipe body, through the design of pipe body can constitute the nozzle structure of connecting cavity and blanking pipe, thereby forming air seal in blanking pipe, can blow away the steel slag that splashes in time, avoid the problem of material accumulation blockage, ensure the stability of feeding system.

[0016] 2. The utility model discloses the design of the plug cover of end sleeve, first carries out the welding connection of shell body when installing, after shell body welding ends, through the drilling of end sleeve on blanking pipe through -opening, plays the role of guiding, improves the position precision of through -opening, ensures the accurate installation of subsequent pipe body, and the plug cover of screw connection is convenient for the installation, dismounting, cleaning and maintenance of end column and pipe body.

[0017] 3. The utility model discloses the through -opening is designed as the tangent of blanking pipe, can form certain spiral flow after input gas, improves the flow area of gas along the inner wall of blanking pipe, improves the sealing range, ensures the air seal effect.

[0018] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0020] Figure 1 It is a structural schematic view of a novel electric furnace blanking pipe air seal device of the utility model;

[0021] Figure 2 It is the structure section view of the axial direction of the utility model;

[0022] Figure 3The structure schematic diagram of the radial direction of the end sleeve is shown in the utility model.

[0023] Figure 4 The structure schematic diagram of the end column and the plug cover is shown in the utility model.

[0024] In the drawings, the component list represented by each sign is as follows:

[0025] 1 - blanking pipe end, 2 - outer shell, 3 - cavity, 4 - end column, 101 - through port, 201 - gas supply end, 202 - end sleeve, 203 - plug cover, 204 - external thread, 205 - hexagonal screwing end, 206 - stepped groove, 207 - connecting ring, 401 - outer step, 402 - pipe body, 403 - nozzle inner core, 404 - notch. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] Please refer to Figures 1-4 The utility model discloses a novel electric furnace blanking pipe gas sealing device, which comprises a blanking pipe end 1 and a gas sealing device body.

[0028] The gas sealing device body comprises an outer shell 2, which is welded and fixed on the circumferential side of the blanking pipe end 1, is concentric with the blanking pipe end 1 and forms a cavity 3 therebetween, and is connected with a gas supply end 201 connected with the cavity 3.

[0029] The outer shell 2 is fixedly connected with a plurality of end sleeves 202 on the circumferential side, the end sleeves 202 are threadedly connected with plug covers 203 at the outer ends, the circumferential side of the blanking pipe end 1 is provided with a plurality of through ports 101, the plurality of through ports 101 are concentric with the plurality of end sleeves 202 respectively, and the through ports 101 are tangent to the inner wall of the blanking pipe end 1.

[0030] The end sleeves 202 are movably connected with solid end columns 4, one end of the end column 4 is provided with an outer step 401, the outer step 401 is fixed between the plug cover 203 and the end sleeve 202, the other end of the end column 4 is fixedly connected with a pipe body 402, the pipe body 402 penetrates through the through port 101 and is internally provided with a nozzle inner core 403, and the circumferential side of the pipe body 402 is provided with a notch 404 in communication with the cavity 3.

[0031] As shown in the utility model, Figures 2-3 The outer end of the end sleeve 202 is provided with an external thread 204, the plug cover 203 is internally provided with an internal thread threadedly connected with the external thread 204, and the outer end face of the plug cover 203 is integrally provided with a hexagonal screwing end 205.

[0032] Among them, such as Figures 2-3 As shown, the inner side of the outer end face of the end sleeve 202 is provided with a stepped groove 206, and the gap of the outer step 401 is set in the stepped groove 206.

[0033] Among them, such as Figures 2-4 As shown, the outer end faces of the outer step 401 and the end sleeve 202 are flush, and a seal is provided between the outer step 401 and the end sleeve 202 and the plug 203.

[0034] Among them, such as Figures 1-3 As shown, both ends of the outer shell 2 are provided with connecting rings 207, and the inner wall of the connecting rings 207 is welded and fixed to the side of the feed tube end 1.

[0035] A compressed air pipe is connected to the air supply end 201 of the outer casing 2.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel gas-sealing device for an electric furnace feed pipe, comprising a feed pipe end (1) and a gas-sealing device body, characterized in that: The air sealing device body includes an outer shell (2), which is welded and fixed to the periphery of the feed pipe end (1). The outer shell (2) and the feed pipe end (1) are concentric and form a cavity (3) between them. An air supply end (201) connected to the cavity (3) is connected to the periphery of the outer shell (2). The outer shell (2) has several end sleeves (202) fixedly connected to its circumferential side. The outer end of the end sleeve (202) is threaded with a plug (203). The feed tube end (1) has several openings (101) on its circumferential side. The openings (101) are concentric with the end sleeves (202) respectively. The openings (101) are tangent to the inner wall of the feed tube end (1). A solid end post (4) is movably connected inside the end sleeve (202). One end of the end post (4) is provided with an outer step (401). The outer step (401) is fixed between the plug (203) and the end sleeve (202). The other end of the end post (4) is fixed with a tube body (402). The tube body (402) passes through the opening (101) and is provided with a nozzle core (403) inside. The circumferential side of the tube body (402) is provided with a notch (404) that communicates with the cavity (3).

2. The novel gas-sealing device for the electric furnace feeding pipe according to claim 1, characterized in that, The outer end of the end sleeve (202) is provided with an external thread (204), the inner end of the plug (203) is provided with an internal thread that is threadedly connected to the external thread (204), and the outer end face of the plug (203) is integrally provided with a hexagonal screwing end (205).

3. The novel gas-sealing device for the electric furnace feeding pipe according to claim 1, characterized in that, The inner side of the outer end face of the end sleeve (202) is provided with a stepped groove (206), and the gap of the outer step (401) is set in the stepped groove (206).

4. A novel gas-sealing device for an electric furnace feeding pipe according to claim 1, characterized in that, The outer end faces of the outer step (401) and the end sleeve (202) are flush, and a seal is provided between the outer step (401) and the end sleeve (202) and the plug (203).

5. A novel gas-sealing device for an electric furnace feeding pipe according to claim 1, characterized in that, Both ends of the outer shell (2) are provided with connecting rings (207), and the inner wall of the connecting ring (207) is welded and fixed to the circumferential side of the feed tube end (1).

6. A novel gas-sealing device for an electric furnace feeding pipe according to claim 1, characterized in that, A compressed air pipe is connected to the air supply end (201) of the outer shell (2).

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