CN110921660A - Furnace end and furnace tail structure of combined graphitizing furnace and construction method thereof - Google Patents
Furnace end and furnace tail structure of combined graphitizing furnace and construction method thereof Download PDFInfo
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- CN110921660A CN110921660A CN201911376898.1A CN201911376898A CN110921660A CN 110921660 A CN110921660 A CN 110921660A CN 201911376898 A CN201911376898 A CN 201911376898A CN 110921660 A CN110921660 A CN 110921660A
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- furnace
- tail
- concrete
- electrode
- head
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- 238000010276 construction Methods 0.000 title claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims description 11
- 230000009970 fire resistant effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000003063 flame retardant Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005087 graphitization Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/205—Preparation
-
- 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
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a combined graphitizing furnace head and tail structure and a construction method thereof, wherein the top of a head or tail electrode is provided with an open groove structure for mounting the head or tail electrode and a carbon sliding block around the head or tail electrode, the top of the electrode groove is hermetically fixed on the whole head or tail by a prefabricated concrete pressure beam with a lifting lug device, and the movable concrete pressure beam is the same as the head or tail concrete outer wall fixed below the movable concrete pressure beam. The invention fundamentally solves the ubiquitous technical problem that the integral furnace end and furnace tail outer wall structure of the graphitizing furnace is inconvenient to install, maintain and operate, and has very important significance for reducing the labor intensity of workers and improving the installation efficiency and the production efficiency of the furnace.
Description
Technical Field
The invention relates to a furnace end and furnace tail structure of a combined graphitizing furnace and a construction method thereof, belonging to the technical field of industrial furnaces.
Background
At present, the outer wall structure of the furnace head and the furnace tail of the graphitizing furnace is mostly in the form of an integrally cast heat-resistant concrete structure, and the middle part of the outer wall of the graphitizing furnace is provided with a hole for connecting and installing the furnace head or the furnace tail electrode and a carbon sliding block around the furnace head or the furnace tail electrode in a penetrating way. The structural form has the characteristics of good integrity of the furnace end and the furnace tail, simple structure, good production stability and the like, but causes great difficulty for the construction and installation of the electrode and the carbon sliding block. The electrodes and the carbon sliding blocks weighing several tons can be installed in place only after horizontally penetrating through the outer wall hole of the furnace end from the side part, so that the electrodes and the carbon sliding blocks cannot be hoisted in place at one time. Moreover, the installation is inconvenient, and the maintenance and the replacement of the furnace head or the furnace tail electrode or the carbon sliding block after the loss are particularly prominent in the future production.
On the other hand, the production mode of the graphitization furnace determines that the furnace end or the furnace tail electrode needs to make reciprocating pushing movement, and the friction force generated by the repeated horizontal movement drives the carbon sliding blocks around the electrode to make relative movement on the straight outer wall opening of the furnace end and the furnace tail of the furnace end, so that the carbon sliding blocks are loosened, the furnace end or the furnace tail electrode is eccentric, the graphitization production is influenced, and the electrode loss is accelerated.
In addition, part of the opinion is that the reinforcing mesh in the concrete outer wall of the integral furnace end and furnace tail forms a closed annular reinforcing conductive loop around the electrode, when strong current passes through the electrode during production, the annular loops can generate an electromagnetic eddy current effect, and further the reinforcing mesh generates heat at a weak position to cause production accidents such as burning-through of the concrete wall of the furnace end and furnace tail.
Disclosure of Invention
The invention aims to provide a furnace end and furnace tail structure of a combined graphitizing furnace, which can effectively solve the problem that a furnace end or a furnace tail electrode and a carbon sliding block around the furnace end or the furnace tail electrode are inconvenient to install while keeping the advantages of good integrity, simple structure, good production stability and the like of the original integral concrete furnace end and furnace tail, and can ensure that the carbon sliding block is combined and fastened with the outer wall of the furnace end and the furnace tail, thereby prolonging the service life of the graphitizing furnace.
The technical scheme of the invention is as follows:
the utility model provides a modular graphitizing furnace end stove tail structure, the substructure of furnace end stove tail is the same basically with former integral concrete furnace end stove tail, cancels original closed furnace end or stove tail electrode trompil, changes into open slot structure in top, and the installation of furnace end or stove tail electrode and carbonaceous slider around being convenient for, at the top of electrode slot, fixes the electrode seal on whole furnace end stove tail with prefabricated concrete pressure beam that has the lug device, and movable concrete pressure beam is the same with the furnace end stove tail concrete outer wall material of fixing under it. Meanwhile, the carbon sliding blocks, the furnace end and furnace tail concrete outer walls around the carbon sliding blocks and the pressing beams are designed to be in a joggle connection mode, so that the outer walls, the pressing beams and the carbon sliding blocks are tightly and stably combined into a whole, and stable production of the graphitizing furnace is guaranteed.
Compared with the prior art, the invention fundamentally solves the common technical problem that the integral furnace end and furnace tail outer wall structure of the graphitizing furnace is inconvenient to install and maintain and operate, and has very important significance for reducing the labor intensity of workers and improving the installation efficiency and the production efficiency of the furnace. The invention also effectively avoids the unstable structure of the furnace end and the furnace tail caused by the sliding of the electrode production operation, which is very beneficial to prolonging the service life of the furnace and reducing unnecessary production waste. Finally, the invention can also thoroughly avoid the hidden trouble that the whole furnace end and furnace tail structure is damaged due to the electromagnetic eddy current effect possibly generated during production.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view a-a in fig. 1.
The labels in the figures are: 1-concrete outer wall, 2-carbon slide block, 3-concrete press beam, 4-fire-resistant layer inner wall and 5-furnace end or furnace tail electrode.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The furnace end and furnace tail structure of the combined graphitizing furnace comprises a concrete outer wall 1, a carbonaceous slide block 2, a concrete pressing beam 3, a refractory layer inner wall 4, a furnace end or furnace tail electrode 5 and the like, and is shown in the attached drawings 1 and 2. During construction, the outer edge part of the electrode groove of the concrete outer wall 1 is processed into a tenon joint structure form, and the corresponding outer edge parts of the carbon sliding block 2 and the concrete pressing beam 3 are processed into a mortise structure form (the concrete pressing beam 3 also has partial tenon joints) so as to be convenient for butt joint. The construction is that the concrete outer wall 1 is constructed and installed in place, the inner wall 4 of the fire-resistant layer is built to a corresponding height, after the carbon slide blocks 2 and the furnace head or furnace tail electrode 5 are sequentially installed in place, the building of the inner wall 4 of the fire-resistant layer is continuously completed, and finally the whole furnace head and furnace tail structure is sealed by the concrete pressing beam 3 according to the mortise and tenon position. Except for the furnace head or furnace tail electrode 5, other parts are bonded by adopting bonding materials such as refractory slurry and the like. The maintenance and the replacement after the production of the graphitizing furnace are reverse to the sequence.
It should be noted that the size, shape and the like of the tongue structure of each tongue groove can be adjusted correspondingly according to the production specifications, performances, requirements and the like of different graphitizing furnaces.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a modular graphitizing furnace end stove tail structure, includes concrete outer wall (1), carbonaceous slider (2), concrete pressure beam (3), flame retardant coating inner wall (4) and furnace end or stove tail electrode (5), its characterized in that: the top of a furnace end or furnace tail electrode (5) is provided with an open groove structure and is used for installing the furnace end or furnace tail electrode (5) and a carbon sliding block (2) around the furnace end or furnace tail electrode, the electrode is hermetically fixed on the whole furnace end or furnace tail by a prefabricated concrete pressure beam (3) with a lifting lug device at the top of an electrode groove, and the movable concrete pressure beam (3) is the same as the furnace end or furnace tail concrete outer wall (1) fixed below the movable concrete pressure beam.
2. The furnace end and tail structure of the combined graphitizing furnace of claim 1, characterized in that: the carbon sliding blocks (2) are arranged between the furnace end and furnace tail concrete outer walls (1) and the concrete pressing beams (3) around the carbon sliding blocks, and the concrete pressing beams (3) and the furnace end and furnace tail outer walls are all designed in a joggle connection mode, so that the concrete outer walls (1), the concrete pressing beams (3) and the carbon sliding blocks (2) are tightly and stably combined into a whole.
3. A construction method of a furnace head and a furnace tail structure of a combined graphitizing furnace as claimed in claim 1 or 2, characterized in that: the outer edge part of an electrode groove of the concrete outer wall (1) is processed into a tenon joint structure form, and the corresponding outer edge parts of the carbon sliding block (2) and the concrete pressing beam (3) are processed into a mortise joint structure form so as to be butted; the construction method comprises the steps of firstly constructing and installing the concrete outer wall (1) in place, building the inner wall (4) of the fire-resistant layer to a corresponding height, sequentially installing the carbon sliding blocks (2) and the furnace head or furnace tail electrode (5) in place, continuously completing building of the inner wall (4) of the fire-resistant layer, and finally sealing the whole furnace head and furnace tail structure by the concrete pressing beam (3) according to mortise and tenon positions.
4. The construction method of the furnace head and tail structure of the combined graphitizing furnace as claimed in claim 1, wherein: except the furnace head or furnace tail electrode (5), other parts are bonded by adopting bonding materials including refractory slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376898.1A CN110921660A (en) | 2019-12-27 | 2019-12-27 | Furnace end and furnace tail structure of combined graphitizing furnace and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376898.1A CN110921660A (en) | 2019-12-27 | 2019-12-27 | Furnace end and furnace tail structure of combined graphitizing furnace and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110921660A true CN110921660A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911376898.1A Pending CN110921660A (en) | 2019-12-27 | 2019-12-27 | Furnace end and furnace tail structure of combined graphitizing furnace and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110921660A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114195145A (en) * | 2022-01-04 | 2022-03-18 | 内蒙古恒科新材料科技有限公司 | Electrode condensation type Acheson graphitizing furnace and installation and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1470496A (en) * | 1974-12-07 | 1977-04-14 | Sigri Elektrographit Gmbh | Graphitising furnace |
| SU1350110A1 (en) * | 1985-07-11 | 1987-11-07 | Предприятие П/Я Ю-9877 | Method of stowing electrode cylindrical workpieces in graphitizing furnace |
| CN101746753A (en) * | 2008-12-05 | 2010-06-23 | 沈阳铝镁设计研究院 | Inner series graphitization furnace body section varistructure |
| CN104891486A (en) * | 2015-06-10 | 2015-09-09 | 四川都江堰西马炭素有限公司 | Graphitization furnace with high heat insulation performance |
| CN206666139U (en) * | 2016-11-25 | 2017-11-24 | 上海景烯新能源材料科技有限公司 | New Ai Qixun graphitizing furnaces burner |
| CN209744994U (en) * | 2019-04-23 | 2019-12-06 | 万基控股集团石墨制品有限公司 | Middle retaining wall brick structure of inner-string type graphitizing furnace |
| CN212050553U (en) * | 2019-12-27 | 2020-12-01 | 贵阳铝镁设计研究院有限公司 | Combined type graphitizing furnace head and furnace tail structure |
-
2019
- 2019-12-27 CN CN201911376898.1A patent/CN110921660A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1470496A (en) * | 1974-12-07 | 1977-04-14 | Sigri Elektrographit Gmbh | Graphitising furnace |
| SU1350110A1 (en) * | 1985-07-11 | 1987-11-07 | Предприятие П/Я Ю-9877 | Method of stowing electrode cylindrical workpieces in graphitizing furnace |
| CN101746753A (en) * | 2008-12-05 | 2010-06-23 | 沈阳铝镁设计研究院 | Inner series graphitization furnace body section varistructure |
| CN104891486A (en) * | 2015-06-10 | 2015-09-09 | 四川都江堰西马炭素有限公司 | Graphitization furnace with high heat insulation performance |
| CN206666139U (en) * | 2016-11-25 | 2017-11-24 | 上海景烯新能源材料科技有限公司 | New Ai Qixun graphitizing furnaces burner |
| CN209744994U (en) * | 2019-04-23 | 2019-12-06 | 万基控股集团石墨制品有限公司 | Middle retaining wall brick structure of inner-string type graphitizing furnace |
| CN212050553U (en) * | 2019-12-27 | 2020-12-01 | 贵阳铝镁设计研究院有限公司 | Combined type graphitizing furnace head and furnace tail structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114195145A (en) * | 2022-01-04 | 2022-03-18 | 内蒙古恒科新材料科技有限公司 | Electrode condensation type Acheson graphitizing furnace and installation and construction method thereof |
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Application publication date: 20200327 |