CN103896255B - Vertical continuous graphitizing furnace - Google Patents
Vertical continuous graphitizing furnace Download PDFInfo
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- CN103896255B CN103896255B CN201210573758.5A CN201210573758A CN103896255B CN 103896255 B CN103896255 B CN 103896255B CN 201210573758 A CN201210573758 A CN 201210573758A CN 103896255 B CN103896255 B CN 103896255B
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Abstract
The invention discloses a kind of vertical continuous graphitizing furnace, be set to funnel (3) at furnace roof, arrange storage bin (2) on batch meter (3), wherein storage bin (2) is three stage structure, i.e. an intermediate bin (11) and storehouse, two sides (10); Batch meter (3) is double-layer circular structure, and namely funnel inner cylinder and funnel out cylinder unitized construction, form annular waste air duct (13) bottom position between the inside and outside cylinder of funnel, and annular waste air duct (13) is connected with vapor pipe (1); Upper electrode (4) is arranged on furnace roof and batch meter (3) interior mid-way, lower electrode (7) is arranged on body of heater hypomere mid-way, in the middle of body of heater, place coarse particles material (5), between the refractory lining (8) and coarse particles material (5) of body of heater, place fine granular materials (6); At bottom of furnace body, discharge mechanism (9) is set.Annular waste air duct is triangular cavity, and bottom adopts refractory castable (12).
Description
Technical field
The present invention relates to a kind of vertical continuous graphitizing furnace.
Background technology
At present, domesticly carry out high-temperature heat treatment to carbon raw materials, the shaft furnace of continuous pulp discharge can mainly contain two kinds, a kind of is the general temperature electric calciner utilizing high alumina brick to make insulating lining, thermal treatment temp 1500 ~ 2000 DEG C; Another kind utilizes carbon lining to make the high-temperature electric calcining furnace be incubated, thermal treatment temp 2000 ~ 2500 DEG C.These two kinds of type of furnaces all cannot meet the requirement of more than 2800 DEG C high-temperature heat treatment needed for the complete greying of carbon raw materials, and because carbon lining belongs to electro-conductive material, after adopting, a kind of type of furnace not only can reduce current efficiency, and work-ing life is also shorter.And horizontal graphitizing furnace belongs to intermittent operation, the cold and hot continuous change of stove, and opened upper end heat radiation is large, energy consumption is very high, and opened upper end also easily makes carbon raw materials be oxidized and causes a large amount of loss, takes on stove labor condition severe.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of vertical continuous graphitizing furnace, with overcome prior art exist cannot meet the deficiencies such as the requirement of more than 2800 DEG C high-temperature heat treatment needed for the complete greying of carbon raw materials.
The present invention is by the following technical solutions: be set to funnel at furnace roof, on batch meter, arrange storage bin, wherein storage bin is three stage structure, i.e. an intermediate bin and storehouse, two sides; Batch meter is double-layer circular structure, i.e. funnel inner cylinder and funnel out cylinder unitized construction, and form annular waste air duct bottom position between the inside and outside cylinder of funnel, annular waste air duct is connected with vapor pipe; Upper electrode is arranged on mid-way in furnace roof and batch meter, and lower electrode is arranged on body of heater hypomere mid-way, places coarse particles material, between the refractory lining and coarse particles material of body of heater, place fine granular materials in the middle of body of heater; At bottom of furnace body, discharge mechanism is set.
Annular waste air duct is triangular cavity, bottom triangular cavity, adopt refractory castable.
Intermediate bin is connected with funnel inner cylinder, and storehouse, two sides is connected with funnel out cylinder respectively.
The present invention, by arranging a special batch meter at furnace roof, makes carbon raw materials add graphitizing furnace respectively according to different granularities, and coarse particles material is placed at stove center, and fine granular materials is then placed in its outside.In heat treatment process, electric current, by coarse particles material, utilizes the resistance characteristic of coarse particles carbon raw materials self to heat the temperature reached needed for thermal treatment, can realize greying; Fine granular materials is then mainly used in heat-insulation and heat-preservation, makes furnace wall temperature maintain less than 1500 DEG C.Carry out screening process after carbon material cooling after Overheating Treatment, coarse particles material is as greying product, and fine granular materials both can use as electricity calcining material, also can use as heat-insulation and heat-preservation material back into stove.
Furnace roof batch meter is designed to double-layer circular structure; coarse particles material placed by funnel inner cylinder; funnel out cylinder places fine granular materials; batch meter is fixed on stove top; arranging triangular cavity bottom funnel inside and outside cylinder mid-way with the common looping exhaust-duct of carbon raw materials is connected with vapor pipe, adopts refractory castable to protect bottom triangular cavity.The intermediate bin of furnace roof storage bin places coarse particles raw material, and fine granular materials is placed in storehouse, both sides.Vertical graphitizing furnace is full-closed structure, and discharge mechanism is arranged in furnace bottom.Raw material is discharged from bottom by discharge mechanism from top to bottom after preheating (low-temperature zone), heating (high temperature section), cooling.Along with the running of discharge mechanism, while product discharges graphitizing furnace, the carbon raw materials in furnace roof batch meter constantly enters in graphitizing furnace.
The present invention be directed to carbon raw materials greying to need to reach more than 2800 DEG C, and the technical measures that the present situation that refractory materials cannot bear this high temperature is taked and structure thereof.Adopt vertical continuous graphitizing furnace of the present invention, both can production greying product, electric calcination product can be produced again; Because furnace wall temperature is lower, the more cheap refractory materials of price can be adopted to make liner, significantly reduce stove investment, extend furnace campaign; In stove, thermal field is stablized.Compared with horizontal graphitizing furnace, energy consumption can reduce by more than 50; Fully enclosed automatic operation, can improve working conditions greatly, reduces carbon material oxidation loss.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is A-A view in Fig. 1.
In figure, 1---vapor pipe, 2---storing, 3---batch meter, 4---upper electrode, 5---coarse particles material, 6---fine granular materials, 7---lower electrode, 8---refractory lining, 9---discharge mechanism, 10---storehouse, side, 11---intermediate bin, 12---refractory castable, 13---annular waste air duct.
Embodiment
Embodiments of the invention: be set to funnel 3 at furnace roof, arrange storage bin 2 on batch meter 3, and wherein storage bin 2 is three stage structure, i.e. an intermediate bin 11 and storehouse, two sides 10; Batch meter 3 is double-layer circular structure, i.e. funnel inner cylinder and funnel out cylinder unitized construction, and form annular waste air duct 13 bottom position between the inside and outside cylinder of funnel, annular waste air duct 13 is connected with vapor pipe 1; Upper electrode 4 is arranged on mid-way in furnace roof and batch meter 3, and lower electrode 7 is arranged on body of heater hypomere mid-way, places coarse particles material 5, between the refractory lining 8 and coarse particles material 5 of body of heater, place fine granular materials 6 in the middle of body of heater; At bottom of furnace body, discharge mechanism 9 is set.
Annular waste air duct 13 is triangular cavity, adopts refractory castable 12 bottom triangular cavity.
Intermediate bin 11 is connected with funnel inner cylinder, and storehouse, two sides 10 is connected with funnel out cylinder respectively.
Coarse particles material placed by inner cylinder, and out cylinder places fine granular materials, and inner cylinder diameter can adjust, thus the adjustment distributed areas of large or fine granule material in stove, realize the adjustment of two kinds of product proportions; The bottom of batch meter inside and outside cylinder spaced-apart locations arranges triangular cavity and the common looping exhaust-duct of carbon raw materials, adopts refractory castable to protect bottom triangular cavity, avoids corrosion and high temperature deformation to damage.Vapor pipe is connected with annular waste air duct, and guarantee that the gaseous impurities of carbon raw materials effusion in graphitizing process discharges out of the furnace in time, air slit diameter can adjust according to the volatile matter and moisture content entering stove material.
Because fine granular materials temperature outside is close to 1500 DEG C, fine granular materials can be used as electricity calcining material completely and uses.In carbon raw materials heat treatment process, sulphur and partial impurities mainly more than 1700 DEG C hot stage be vaporized, gaseous impurities is collected by the annular waste air duct between furnace roof and batch meter, then discharges outside vertical continuous graphitizing furnace through vapor pipe.The product of difference quality discharges out of the furnace with being drained through in journey to be mixed together outward in cooling, and sieve apparatus can be utilized to carry out separating treatment, and coarse particles material is greying product, and fine granular materials also can be made heat-insulation and heat-preservation material back into stove as the use of electricity calcining material and use.
Claims (3)
1. a vertical continuous graphitizing furnace, is characterized in that: be set to funnel (3) at furnace roof, arranges storage bin (2) on batch meter (3), and wherein storage bin (2) is three stage structure, i.e. an intermediate bin (11) and storehouse, two sides (10); Batch meter (3) is double-layer circular structure, and namely funnel inner cylinder and funnel out cylinder unitized construction, form annular waste air duct (13) bottom position between the inside and outside cylinder of funnel, and annular waste air duct (13) is connected with vapor pipe (1); Upper electrode (4) is arranged on furnace roof and batch meter (3) interior mid-way, lower electrode (7) is arranged on body of heater hypomere mid-way, in the middle of body of heater, place coarse particles material (5), between the refractory lining (8) and coarse particles material (5) of body of heater, place fine granular materials (6); At bottom of furnace body, discharge mechanism (9) is set.
2. vertical continuous graphitizing furnace according to claim 1, is characterized in that: annular waste air duct (13) is triangular cavity, adopts refractory castable (12) bottom triangular cavity.
3. vertical continuous graphitizing furnace according to claim 1, is characterized in that: intermediate bin (11) is connected with funnel inner cylinder, and storehouse, two sides (10) is connected with funnel out cylinder respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210573758.5A CN103896255B (en) | 2012-12-26 | 2012-12-26 | Vertical continuous graphitizing furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210573758.5A CN103896255B (en) | 2012-12-26 | 2012-12-26 | Vertical continuous graphitizing furnace |
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| CN103896255A CN103896255A (en) | 2014-07-02 |
| CN103896255B true CN103896255B (en) | 2016-02-10 |
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| CN201210573758.5A Active CN103896255B (en) | 2012-12-26 | 2012-12-26 | Vertical continuous graphitizing furnace |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800591A (en) * | 2014-12-30 | 2016-07-27 | 贵阳铝镁设计研究院有限公司 | High temperature graphitized electrical calciner |
| CN105967180B (en) * | 2016-07-18 | 2018-02-09 | 中国矿业大学 | graphitizing furnace |
| CN106829951B (en) * | 2017-03-30 | 2019-01-08 | 顾齐航 | Efficient sealed continuous graphitizing furnace |
| CN107572513B (en) * | 2017-08-17 | 2020-03-27 | 葫芦岛市丰达新碳材料有限公司 | Electric heating petroleum coke, graphite and carbon conversion integrated furnace |
| CN109081336B (en) * | 2018-10-24 | 2020-06-30 | 中铝国际工程股份有限公司 | Electric calcining high-temperature graphitization furnace |
| CN110371966A (en) * | 2019-05-09 | 2019-10-25 | 贵阳铝镁设计研究院有限公司 | A kind of carbon raw materials continuous graphitizing furnace construction and method for graphitizing |
| DE102019126394A1 (en) * | 2019-09-30 | 2021-04-01 | Onejoon Gmbh | Process for the production of graphite and vertical graphitization furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487835A (en) * | 1973-12-15 | 1977-10-05 | Nippon Kokan Kk | Method and apparatus for denitrifying coke |
| CN1252126A (en) * | 1997-04-14 | 2000-05-03 | 埃尔凯姆公司 | Method and calcining furnace for electric calcining of carbonaceous material |
| CN2759998Y (en) * | 2004-11-15 | 2006-02-22 | 镇江焦化煤气集团有限公司 | Vertical electric incinerator for continuous production of high-purity graphite carbon material |
| CN202369397U (en) * | 2011-12-14 | 2012-08-08 | 贵阳铝镁设计研究院有限公司 | Electric calcining furnace for graphite carbon material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007139343A (en) * | 2005-11-21 | 2007-06-07 | Chisaki:Kk | Vertical kiln |
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- 2012-12-26 CN CN201210573758.5A patent/CN103896255B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487835A (en) * | 1973-12-15 | 1977-10-05 | Nippon Kokan Kk | Method and apparatus for denitrifying coke |
| CN1252126A (en) * | 1997-04-14 | 2000-05-03 | 埃尔凯姆公司 | Method and calcining furnace for electric calcining of carbonaceous material |
| CN2759998Y (en) * | 2004-11-15 | 2006-02-22 | 镇江焦化煤气集团有限公司 | Vertical electric incinerator for continuous production of high-purity graphite carbon material |
| CN202369397U (en) * | 2011-12-14 | 2012-08-08 | 贵阳铝镁设计研究院有限公司 | Electric calcining furnace for graphite carbon material |
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| CN103896255A (en) | 2014-07-02 |
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