CN107504818B - Electrode sealing device for submerged arc furnace - Google Patents
Electrode sealing device for submerged arc furnace Download PDFInfo
- Publication number
- CN107504818B CN107504818B CN201710817917.4A CN201710817917A CN107504818B CN 107504818 B CN107504818 B CN 107504818B CN 201710817917 A CN201710817917 A CN 201710817917A CN 107504818 B CN107504818 B CN 107504818B
- Authority
- CN
- China
- Prior art keywords
- ring
- stainless steel
- sealing ring
- cooling water
- steel sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/12—Arrangements for cooling, sealing or protecting electrodes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention relates to a submerged arc furnace part, in particular to an electrode sealing device for a submerged arc furnace. The device consists of three layers, wherein the bottom layer is a stainless steel sealing ring, the middle layer is a refractory brick, and the top layer is a sector ring; the upper edge of the stainless steel sealing ring is fixedly provided with a plurality of pull rods with screw openings; the fan-shaped ring is provided with a round hole which is matched with the pull rod, and the refractory brick and the fan-shaped ring are fixed on the pull rod by the nut. The invention has the advantages that: through the improvement of the sealing structure, the sealing structure is simple and the cost is low; the sealing effect is good, and the service life is long; the structure is simple, the difficulty and labor intensity of overhaul of machine maintenance personnel are reduced, the overhaul time is shortened by about 16 hours, and the maintenance cost is low; the use of a group of circulating water is reduced, and the water is saved.
Description
Technical Field
The invention relates to a submerged arc furnace part, in particular to an electrode sealing device for a submerged arc furnace.
Background
The electrode seal for the existing submerged arc furnace in China at present adopts refractory bricks (high-alumina bricks) to seal the electrode, and the sealing structure has the following defects: in the up-and-down process of the electrode, the protective screen and the refractory bricks are in friction and collision, and the bricks are easy to be unfilled corners and cracked; the firebricks cannot move freely after being installed, so that the service life of the screen is influenced after long-time friction; the refractory bricks cannot be attached to the periphery of the protective screen, the sealing effect is poor, the effect is worse after the furnace runs for a period of time, the refractory bricks must be frequently replaced, the furnace is quite difficult to replace during running, the refractory bricks cannot be replaced basically, the refractory bricks can only be replaced when the furnace is stopped, the labor intensity is increased, economic waste is caused, and personal injury accidents are caused sometimes.
Disclosure of Invention
The invention aims to provide an electrode sealing device for a submerged arc furnace, which has long service life, good sealing effect and convenient replacement and improves the starting rate of equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the electrode sealing device for the submerged arc furnace comprises three layers, wherein the bottom layer is a stainless steel sealing ring 6, the middle layer is a refractory brick 5, and the top layer is a sector ring 1; the upper edge of the stainless steel sealing ring 6 is fixedly provided with a plurality of pull rods 3 with screw openings; the sector ring 1 is provided with a round hole 2, the round hole 2 is matched with the pull rod 3, and the refractory brick 5 and the sector ring 1 are fixed on the pull rod 3 by the nut 4.
Furthermore, the radian of the inner side of the refractory brick 5 is matched with the radian of the stainless steel sealing ring 6, and the radian of the inner side of the fan-shaped ring 1 is matched with the radian of the stainless steel sealing ring 6.
Further, the gaps between the refractory bricks 5 are filled with refractory cement.
Furthermore, the corners of the refractory bricks 5 are complete.
Further, the fan-shaped rings 1 form a complete circular ring after being matched.
Furthermore, a circular hole 2 is formed in the sector ring 1, the circular hole 2 is matched with the pull rod 3, and the sector ring 1 is fixed on the pull rod 3 through a nut 4.
further, the gap between the electrode and the stainless steel seal ring 6 is filled with asbestos.
Furthermore, a cooling water inlet 7 and a cooling water outlet 8 are arranged on the outer side of the stainless steel sealing ring 6, a cooling water channel is arranged in the stainless steel sealing ring, and the cooling water inlet 7 and the cooling water outlet 8 are communicated with the cooling water channel.
The electrode sealing device for the submerged arc furnace provided by the invention adopts the stainless steel sealing ring with the cooling water channel arranged inside, and has the advantages of simple sealing structure and good cooling effect.
The refractory brick layer is arranged above the stainless steel sealing ring, the sector ring is arranged above the refractory bricks and fixed with the stainless steel sealing ring, and the gap between the refractory bricks is filled with refractory cement, so that the reliability of the sealing device is ensured.
The inner side radians of the sector ring, the refractory brick layer and the stainless steel sealing ring are consistent, and the gap between the electrode and the stainless steel sealing ring is filled with asbestos, so that the reliability of the sealing device can be ensured, the friction and the collision between the electrode and the sector ring, between the refractory brick layer and the stainless steel sealing ring can be reduced, and the service life of the sealing device is prolonged.
Compared with the prior art, the electrode sealing device for the submerged arc furnace has the advantages that:
(1) The sealing structure is simple and the cost is low.
(2) the sealing effect is good, and the service life is long.
(3) the structure is simple, the difficulty and labor intensity of overhaul of machine maintenance personnel are reduced, the overhaul time is shortened by nearly 16 hours, and the maintenance cost is low.
(4) The use of a group of circulating water (inlet water and outlet water) is reduced, and the water is saved.
drawings
Fig. 1 is a top view of an electrode sealing device according to the present invention.
Fig. 2 is a schematic structural view of the electrode sealing device of the present invention.
In the figure, 1 is a sector ring, 2 is a circular hole, 3 is a pull rod, 4 is a nut, 5 is a refractory brick, 6 is a stainless steel sealing ring, 7 is a cooling water inlet, and 8 is a cooling water outlet.
Detailed Description
The electrode sealing device consists of three layers, wherein the bottom layer is a stainless steel sealing ring 6, the middle layer is a refractory brick 5, and the top layer is a sector ring 1; the upper edge of the stainless steel sealing ring 6 is fixedly provided with a plurality of pull rods 3 with screw openings; the sector ring 1 is provided with a round hole 2, the round hole 2 is matched with the pull rod 3, and the refractory brick 5 and the sector ring 1 are fixed on the pull rod 3 by the nut 4. The radian of the inner side of the refractory brick 5 is matched with the radian of the stainless steel sealing ring 6, and the radian of the inner side of the fan-shaped ring 1 is matched with the radian of the stainless steel sealing ring 6. The gaps between the refractory bricks 5 are filled with refractory cement. The corners of the refractory bricks 5 are complete. The sector rings 1 form a complete circular ring after being matched. The fan-shaped ring 1 is provided with a round hole 2, the round hole 2 is matched with the pull rod 3, and the fan-shaped ring 1 is fixed on the pull rod 3 by a nut 4. The gap between the electrode and the stainless steel sealing ring 6 is filled with asbestos. The outer side of the stainless steel sealing ring 6 is provided with a cooling water inlet 7 and a cooling water outlet 8, a cooling water channel is arranged in the stainless steel sealing ring, and the cooling water inlet 7 and the cooling water outlet 8 are communicated with the cooling water channel.
Example 1
Referring to fig. 1 and 2, the electrode sealing device is composed of three layers, wherein the bottom layer is a stainless steel sealing ring 6, the middle layer is a refractory brick 5, and the top layer is a sector ring 1; the upper edge of the stainless steel sealing ring 6 is fixedly provided with 8 pull rods 3 with screw openings; round holes 2 matched with the pull rods 3 are formed in the 4 sector rings 1, and the refractory bricks 5 and the sector rings 1 are fixed on the pull rods 3 through nuts 4. The radian of the inner side of the refractory brick 5 is matched with the radian of the stainless steel sealing ring 6, and the radian of the inner side of the fan-shaped ring 1 is matched with the radian of the stainless steel sealing ring 6. The gaps between the refractory bricks 5 are filled with refractory cement. The corners of the refractory bricks 5 are complete. The sector rings 1 form a complete circular ring after being matched. The fan-shaped ring 1 is provided with a round hole 2, the round hole 2 is matched with the pull rod 3, and the fan-shaped ring 1 is fixed on the pull rod 3 by a nut 4. The gap between the electrode and the stainless steel sealing ring 6 is filled with asbestos. The outer side of the stainless steel sealing ring 6 is provided with a cooling water inlet 7 and a cooling water outlet 8, a cooling water channel is arranged in the stainless steel sealing ring, and the cooling water inlet 7 and the cooling water outlet 8 are communicated with the cooling water channel.
Claims (2)
1. The utility model provides a hot stove in ore deposit is with electrode sealing device which characterized in that: the electrode sealing device consists of three layers, wherein the bottom layer is a stainless steel sealing ring (6), the middle layer is a refractory brick (5), and the top layer is a sector ring (1); the upper edge of the stainless steel sealing ring (6) is fixedly provided with a plurality of pull rods (3) with screw openings;
The circular hole (2) is formed in the sector ring (1), the circular hole (2) is matched with the pull rod (3), and the refractory brick (5) and the sector ring (1) are fixed on the pull rod (3) through the nut (4);
The inner radian of the refractory brick (5) is matched with the inner radian of the stainless steel sealing ring (6), and the inner radian of the sector ring (1) is matched with the inner radian of the stainless steel sealing ring (6);
Gaps among the refractory bricks (5) are filled with refractory cement;
The edges and corners of the refractory bricks (5) are complete;
the fan-shaped rings (1) form a complete ring after being matched;
The gap between the stainless steel sealing ring (6) and the electrode is filled with asbestos.
2. The electrode sealing device for the submerged arc furnace according to claim 1, characterized in that the stainless steel sealing ring (6) is provided with a cooling water inlet (7) and a cooling water outlet (8) at the outer side, and a cooling water channel is arranged in the stainless steel sealing ring, and the cooling water inlet (7) and the cooling water outlet (8) are communicated with the cooling water channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817917.4A CN107504818B (en) | 2017-09-12 | 2017-09-12 | Electrode sealing device for submerged arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817917.4A CN107504818B (en) | 2017-09-12 | 2017-09-12 | Electrode sealing device for submerged arc furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107504818A CN107504818A (en) | 2017-12-22 |
| CN107504818B true CN107504818B (en) | 2019-12-17 |
Family
ID=60696481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710817917.4A Expired - Fee Related CN107504818B (en) | 2017-09-12 | 2017-09-12 | Electrode sealing device for submerged arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504818B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4759032A (en) * | 1987-06-03 | 1988-07-19 | Monsanto Company | Electrode seal assembly |
| US5406580A (en) * | 1993-12-23 | 1995-04-11 | Hatch Associates Ltd. | Electrode seal for arc furnaces |
| CN2588549Y (en) * | 2002-12-10 | 2003-11-26 | 天津大学 | Electrode |
| CN103335527A (en) * | 2013-07-03 | 2013-10-02 | 上海宝锋工程技术有限公司 | Submerged arc furnace electrode sealing device |
| RS63536B1 (en) * | 2014-04-28 | 2022-09-30 | Hatch Ltd | Sleeve seal for electric furnace electrodes |
| CN105241256B (en) * | 2015-11-16 | 2017-08-22 | 西安电炉研究所有限公司 | Closed electric furnace flexible adjustment electrode seals |
| CN205607164U (en) * | 2016-05-04 | 2016-09-28 | 自贡长城装备技术有限责任公司 | High temperature graphitizing furnace water cooled electrode |
-
2017
- 2017-09-12 CN CN201710817917.4A patent/CN107504818B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN107504818A (en) | 2017-12-22 |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 Termination date: 20210912 |