CN106517737A - Top-inserted electrode for hot top kiln - Google Patents
Top-inserted electrode for hot top kiln Download PDFInfo
- Publication number
- CN106517737A CN106517737A CN201611174262.5A CN201611174262A CN106517737A CN 106517737 A CN106517737 A CN 106517737A CN 201611174262 A CN201611174262 A CN 201611174262A CN 106517737 A CN106517737 A CN 106517737A
- Authority
- CN
- China
- Prior art keywords
- electrode
- protective case
- electrode body
- kiln
- top insertion
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 18
- 239000011733 molybdenum Substances 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims description 34
- 238000003780 insertion Methods 0.000 claims description 23
- 230000037431 insertion Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910052756 noble gas Inorganic materials 0.000 claims description 6
- 150000002835 noble gases Chemical class 0.000 claims description 5
- 239000011449 brick Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000003064 anti-oxidating effect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a top-inserted electrode for a hot top kiln. The top-inserted electrode comprises an electrode main body, a protecting sleeve and a sealing part, wherein the protecting sleeve is sleeved on the electrode main body; gaps between the openings at the two ends of the protecting sleeve and the electrode main body are sealed through sealing parts; an inert gas is filled between the protecting sleeve and the electrode main body. The protecting sleeve structure adopted by the invention is totally different from a water-cooling jacket structure of the traditional molybdenum electrode; the electrode main body is prevented from being oxidized by the inert gas; when the top-inserted electrode is replaced, the top-inserted electrode can be directly pulled out from the top of the kiln and then replaced.
Description
Technical field
A kind of the present invention relates to electric smelting glass furnace technology field, more particularly to top insertion electrode for hot top kiln.
Background technology
Traditional glass kiln is cold roof construction, the use of top insertion electrode has been mature technology on cold top kiln, cold top
The top insertion electrode operation principle of kiln is that electrode head is directly immersed in the high-temperature fusant of bottom to realize heating, and melt top is by cold
State raw material is covered to reduce heat loss (i.e. cold top), and remaining position of electrode in addition to the heating region of front end is protected using long water jacket,
And one end of water jacket need to be embedded in the powder raw material on kiln top, so as to prevent anodizing.Top insertion electrode is easy for installation, behaviour
Make simple, it is possible to avoid the resistance to material brought because of melt bottom resistance to material perforate (for installing electrode) from burning material leakage risk, and water
Set can take away certain heat.Generally, glass furnace is heated using the molybdenum electrode of high current density, but molybdenum electrode exists
In oxidizing atmosphere, 380 DEG C start oxidation, and accelerated oxidation when 600 DEG C, rapid oxidation during more than 700 DEG C, oxide are predominantly waved
The property sent out gas, thereby, it is ensured that the surface temperature of molybdenum electrode is less than 380 DEG C, or avoids contact with oxidizing atmosphere, is just avoided that electrode
Oxidation.Electrode surface temperature can both be reduced using water collar protection in electrode exterior, electrode and oxygen gas can have been reduced again
Body directly contact.
With the development of electric smelting glass furnace technology, modified processing of hot molten slag etc. is such as adopted, using hot top kiln
Become the development trend of other NPD projects.Although side intercalative electrode and vertical-insert electrode can realize heating function, need under the melt
Perforate (installing electrode) on the resistance to material in portion, and reserved certain space is needed between electrode and resistance to material, so as to meeting band generation is resistance to
Material burns the risk of material leakage, has larger difficulty while implementing the protection against oxidation to molybdenum electrode and continuing into function with electrode.It is right
For any kiln, it is safest heating technique using tip cutting molybdenum electrode structure, but because of the space temperature meeting in hot top kiln
More than more than 1200 DEG C, and no matter a certain amount of oxidizing gas can be contained in flame kiln or the space of electric melting furnace, therefore adopt
Top insertion electrode must solve the anti-oxidation problem of electrode, while the heat that top insertion electrode water jacket is taken away is reduced, to prevent space temperature
Decline causes bath surface crust to affect normal production.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of top insertion electrode for hot top kiln, its protective case having
Structure replaces the water-cooled nested structure of traditional molybdenum electrode, is prevented from the oxidation of electrode body, and the top insertion electrode has user
Just advantage.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is：
A kind of top insertion electrode for hot top kiln, including electrode body, protective case and sealing, the protective case is enclosed within
On the electrode body, the gap between the both ends open of the protective case and the electrode body is close by the sealing
Envelope, fills noble gases between the protective case and the electrode body.
Preferably, the electrode body includes molybdenum bar and stainless steel bar, the molybdenum bar is fixedly connected with the stainless steel bar,
And fixed connection place is located in the protective case.
Further, the molybdenum bar for being exposed to the protective case bottom is used for heating glass slag, is exposed to the guarantor
The stainless steel bar on sheath top is provided with an electrode connection hole.
Preferably, the sealing includes felt pad, insulated enclosure cover and sealing gasket, at the top end opening of the protective case
Pass sequentially through the sealing gasket, insulated enclosure cover to seal and the electrode body between, at the bottom end opening of the protective case
By the felt pad sealing and the electrode body between.
Preferably, when melt is acidic materials, then the protective case adopts acid-resisting material；When melt is alkaline matter,
Then the protective case adopts alkali resistance material.
Preferably, the top insertion electrode is suspended on the refractory brick of kiln top.
The Advantageous Effects of the technical program are：
The present invention cancels the water-cooled nested structure of traditional molybdenum electrode, and installs protective case protection to high-temperature space region additional, and
Noble gases are filled in gap between protective case and electrode body, to prevent the oxidation of molybdenum electrode body.Receive in electrode body
When needing to change to melt erosion for a long time, it is only necessary to which this top insertion electrode is extracted replacing from kiln top directly.
Description of the drawings
Fig. 1 is the top insertion electrode structural representation of one embodiment of the invention.
In figure, 1- electrode bodies；2- felt pads；3- protective cases；4- refractory brick；5- insulated enclosure covers；6- electrode connections hole；
7- noble gases 7；8- sealing gaskets 8.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with each reality of the accompanying drawing to the present invention
The mode of applying is explained in detail.
Fig. 1 is refer to, a kind of top insertion electrode for hot top kiln, including electrode body 1, protective case 3 and sealing, is protected
Sheath 3 is enclosed within electrode body 1, and the gap between the both ends open of protective case 3 and electrode body 1 is protected by both seals
Noble gases 7 are filled between sheath 3 and electrode body 1.Noble gases 7 are direct with oxidizing gas to completely cut off electrode body 1
Contact.
Electrode body 1 includes molybdenum bar and stainless steel bar, and molybdenum bar is fixedly connected with stainless steel bar, and fixed connection place is located at and protects
In sheath 3.The molybdenum bar for being exposed to 3 bottom of protective case is used for directly heating glass slag, is exposed to the rustless steel on 3 top of protective case
Rod is provided with an electrode connection hole.
Sealing includes felt pad 2, insulated enclosure cover 5 and sealing gasket 8, at the top end opening of protective case 3 and electrode body 1
Between pass sequentially through sealing gasket 8, insulated enclosure cover 5 to seal, pass through and electrode body 1 between at the bottom end opening of protective case 3
Felt pad 2 is sealing.
When melt is acidic materials, then protective case 3 adopts acid-resisting material；When melt is alkaline matter, then protective case 3 is adopted
Use alkali resistance material.Meanwhile, protective case 3 is needed according to the characteristic of melt from anti-oxidation and exotic material.
Top insertion electrode is suspended on the refractory brick 4 of kiln top.
When electrode body 1 is subject to melt erosion for a long time to need to change, it is only necessary to by this top insertion electrode directly from kiln top
Extract replacing.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (6)
1. a kind of top insertion electrode for hot top kiln, it is characterised in that：It is including electrode body, protective case and sealing, described
Protective case is enclosed within the electrode body, and the gap between the both ends open of the protective case and the electrode body is by described
Both seals, fill noble gases between the protective case and the electrode body.
2. top insertion electrode as claimed in claim 1, it is characterised in that：The electrode body includes molybdenum bar and stainless steel bar, institute
State molybdenum bar to be fixedly connected with the stainless steel bar, and fixed connection place is located in the protective case.
3. top insertion electrode as claimed in claim 2, it is characterised in that：The molybdenum bar for being exposed to the protective case bottom is used for
Heating glass slag, the stainless steel bar for being exposed to the protective case top are provided with an electrode connection hole.
4. top insertion electrode as claimed in claim 1, it is characterised in that：The sealing include felt pad, insulated enclosure cover and
Sealing gasket, passes sequentially through the sealing gasket, insulated enclosure cover and the electrode body between at the top end opening of the protective case
To seal, at the bottom end opening of the protective case and the electrode body between by the felt pad sealing.
5. top insertion electrode as claimed in claim 1, it is characterised in that：When melt is acidic materials, then the protective case is adopted
Acid-resisting material；When melt is alkaline matter, then the protective case adopts alkali resistance material.
6. top insertion electrode as claimed in claim 1, it is characterised in that：The top insertion electrode is suspended on the refractory brick of kiln top
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611174262.5A CN106517737A (en) | 2016-12-16 | 2016-12-16 | Top-inserted electrode for hot top kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611174262.5A CN106517737A (en) | 2016-12-16 | 2016-12-16 | Top-inserted electrode for hot top kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106517737A true CN106517737A (en) | 2017-03-22 |
Family
ID=58340475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611174262.5A Pending CN106517737A (en) | 2016-12-16 | 2016-12-16 | Top-inserted electrode for hot top kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106517737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248117A (en) * | 2021-05-11 | 2021-08-13 | 重庆国际复合材料股份有限公司 | Sealing method for side-inserted electrode of glass fiber electric melting furnace |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2057828A (en) * | 1979-08-29 | 1981-04-01 | Bfg Glassgroup | Furnace electrode assembly |
| US5125002A (en) * | 1991-01-07 | 1992-06-23 | Toledo Engineering Co., Inc. | Furnace electrode protector |
| US5600669A (en) * | 1994-12-17 | 1997-02-04 | Beteiligungen Sorg Gmbh & Co. Kg | Electrode assembly for glass tank furnaces |
| CN201883014U (en) * | 2010-10-01 | 2011-06-29 | 江山世明水晶玻璃有限公司 | Molybdenum electrode without water cooling |
| CN203173961U (en) * | 2013-03-28 | 2013-09-04 | 湖北新华光信息材料有限公司 | Protective device of molybdenum electrode of glass kiln |
| CN104556632A (en) * | 2014-11-25 | 2015-04-29 | 中材科技股份有限公司 | Device for preventing oxidation of glass electric melting molybdenum electrode |
| CN204661548U (en) * | 2015-05-27 | 2015-09-23 | 台嘉玻璃纤维有限公司 | Electrode bar mounting structure |
-
2016
- 2016-12-16 CN CN201611174262.5A patent/CN106517737A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2057828A (en) * | 1979-08-29 | 1981-04-01 | Bfg Glassgroup | Furnace electrode assembly |
| US5125002A (en) * | 1991-01-07 | 1992-06-23 | Toledo Engineering Co., Inc. | Furnace electrode protector |
| US5600669A (en) * | 1994-12-17 | 1997-02-04 | Beteiligungen Sorg Gmbh & Co. Kg | Electrode assembly for glass tank furnaces |
| CN201883014U (en) * | 2010-10-01 | 2011-06-29 | 江山世明水晶玻璃有限公司 | Molybdenum electrode without water cooling |
| CN203173961U (en) * | 2013-03-28 | 2013-09-04 | 湖北新华光信息材料有限公司 | Protective device of molybdenum electrode of glass kiln |
| CN104556632A (en) * | 2014-11-25 | 2015-04-29 | 中材科技股份有限公司 | Device for preventing oxidation of glass electric melting molybdenum electrode |
| CN204661548U (en) * | 2015-05-27 | 2015-09-23 | 台嘉玻璃纤维有限公司 | Electrode bar mounting structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248117A (en) * | 2021-05-11 | 2021-08-13 | 重庆国际复合材料股份有限公司 | Sealing method for side-inserted electrode of glass fiber electric melting furnace |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |
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| RJ01 | Rejection of invention patent application after publication |