CN203561217U - Multi-electrode direct current corundum smelting furnace - Google Patents
Multi-electrode direct current corundum smelting furnace Download PDFInfo
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- CN203561217U CN203561217U CN201320758964.3U CN201320758964U CN203561217U CN 203561217 U CN203561217 U CN 203561217U CN 201320758964 U CN201320758964 U CN 201320758964U CN 203561217 U CN203561217 U CN 203561217U
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- 238000003723 Smelting Methods 0.000 title claims abstract description 43
- 239000010431 corundum Substances 0.000 title claims abstract description 36
- 229910052593 corundum Inorganic materials 0.000 title claims abstract description 36
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract 3
- 230000004927 fusion Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000510093 Quadrula metanevra Species 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses a multi-electrode direct current corundum smelting furnace which comprises a secondary conductor system, electrodes and a furnace body. The electrodes are arranged in the furnace body. The secondary conductor system comprises flexible busbars and electrode holders. The electrodes are clamped by the electrode holders. External transformers supply power to the electrodes through the flexible busbars and the electrode holders in sequence. The multi-electrode direct current corundum smelting furnace is characterized in that the electrodes are divided into the positive electrodes and the negative electrodes in two sets, all the positive electrodes and all the negative electrodes are annularly and evenly distributed, the positive electrode and the negative electrode in each set are arranged oppositely, the secondary conductor system further comprises two current transformers, an alternating current output by each external transformer is converted into an independent direct current through the corresponding current transformer, the direct current output by each current transformer is respectively input into the positive electrode and the negative electrode in the corresponding set through the corresponding independent flexible busbar and the corresponding electrode holder, and each independent direct current sent to the furnace body through the corresponding electrode is used for smelting corundum. The multi-electrode direct current corundum smelting furnace has the advantages of being good in power supply balance, stable in furnace condition, high in power factor, capable of saving energy, low in noise, small in electrode consumption and large in smelting area.
Description
Technical field
The utility model relates to a kind of multi-electrode direct current corundum smelting stove, is mainly used in and in grinding materials and grinding tool industry, carries out corundum product smelting.
Background technology
For many years, the corundum smelting stove that carries out corundum product smelting in grinding materials and grinding tool industry adopts three-phase alternating-current powered mode always, electric smelting method in < < diamond and grinding materials and grinding tool engineering > > is smelted the energy-conservation suggestion of corundum and this has been made to record clearly: the various type of furnaces of grinding materials and grinding tool industry corundum smelting stove, comprise Cinker clew furnace, dumping furnace, banish stove and banish dumping furnace, all adopt without exception three electrode Alternating Current Power Supply versions, its smelting furnace is respectively by body of heater, the short net of three-phase electrode holder and secondary forms, in three electrodes insertion stoves by triangular arrangement, carry out corundum smelting.
This three electrodes of the prior art exchange corundum smelting stove and have following major defect:
1. owing to adopting three-phase alternating-current powered, the short net reactance of secondary is large, power factor is low, generally between 0.8～0.92, as only counted secondary side, power factor is only 0.7 left and right, and along with furnace volume increasing power factor is lower, therefore existing three electrodes interchange corundum smelting stove power consumptions are high.
2. because the mutual inductance of three-phase alternating current is inhomogeneous, produce " weak phase " and " strong phase " power transfer phenomenon, make existing three electrodes exchange the stove internal power LONG-TERM DISTRIBUTION imbalance of corundum smelting stove, metallurgical effect and product quality are affected.
3. by three molten baths that electrode forms in melting of triangular arrangement, it is rendered as " monkey face shape " molten bath that three circles overlap formation mutually, the fusion zone area that has caused existing three electrodes to exchange corundum smelting stove is little, and this phenomenon is particularly evident in corundum smelting dumping furnace, production efficiency is affected.
4. because alternating current exists kelvin effect, make that electrode surface current density is large, temperature is high, anodizing consumption is large.
5. due to large capacity ovens, be subject to the restriction of the low and single conductive capability of existing graphite electrode of power factor, make existing corundum smelting stove heap(ed) capacity all be no more than 10000KVA.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of multi-electrode direct current corundum smelting stove, to overcome the problem that power factor is low, power consumption is high, consumed electrode is large, fusion zone area is little of corundum smelting stove in prior art.
Solve the problems of the technologies described above, the technical scheme that the utility model adopts is as follows:
A kind of multi-electrode direct current corundum smelting stove, comprise the short net of secondary, electrode and body of heater, described electrode is arranged in body of heater, the short net of described secondary comprises soft bus and electrode holde, described electrode holde is installed on electrode, outside transformer is described electrode power supply by described soft bus and electrode holde successively, it is characterized in that: described electrode is just being provided with two groups, negative electrode, just all, negative electrode is uniformly distributed setting by annular, and every group just, negative electrode is oppositely arranged, the short net of described secondary also comprises two current transformers, each current transformer converts the alternating current of an external transformer output to a road independently direct current, the direct current of each road current transformer output is respectively by independently soft bus and electrode holde are just being input to one group, negative electrode, via electrode be transported to body of heater Nei Ge road independently direct current for smelting corundum.
As a kind of improvement of the present utility model, described electrode is also provided with one group or above positive and negative electrode, and the short net of described secondary is set up the described current transformer of respective numbers.
As a kind of improvement of the present utility model, described multi-electrode direct current corundum smelting stove also comprises update device; Described update device connects respectively described each electrode holde, in order to control described each positive and negative electrode, moves up and down.
As preferred embodiment of the present utility model, described galvanic current range is between 15000～24000A, and voltage range is between 150～250V.
Compared with prior art, the utlity model has following beneficial effect:
The first, the utility model is carried independently direct current of two-way by two groups of positive and negative electrodes in body of heater, forms the fusion zone of sub-circular, for smelting corundum; Because smelting furnace of the present utility model has adopted powered by direct current, and there is not reactance and kelvin effect in direct current, the power factor of smelting furnace is greatly improved, electric current can be uniformly distributed in electrode sections, electrode surface current density reduces, surface temperature reduces, and oxidation consumption speed reduces, thereby consumed electrode is declined; And the direct current of exporting as each group positive and negative electrode of power supply unit is all independently, each road direct current is independent of each other, and makes smelting furnace no longer occur the problem of existing interchange stove three-phase imbalance; In addition, the sensing body of heater center (referring to Fig. 1) of the arc force F of the utility model smelting furnace, just contrary with the sensing that exchanges stove, make heat be concentrated on body of heater center, protected peripheral furnace lining; And the utility model only adopts two groups of positive and negative electrodes also can obtain than exchanging the larger melt zone area of stove; So, the utlity model has the advantage that power supply balance is good, the working of a furnace stable, power factor is high, energy-conservation, noise is low, consumption of electrode is few and melting area is large, through test, its power factor can be increased to 0.9-0.96, noise <65db;
The second, the utility model is by setting up one group or above positive and negative electrode, and carries accordingly independently direct current, can further expand fusion zone area, improve per unit area yield, therefore, the utility model is suitable for corundum smelting stove to large capacity future development.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the plan structure schematic diagram of the utility model embodiment mono-;
Fig. 2 is the structural representation of facing of the utility model embodiment mono-;
Fig. 3 is the plan structure schematic diagram of the utility model embodiment bis-.
The specific embodiment
Embodiment mono-
As depicted in figs. 1 and 2, the multi-electrode direct current corundum smelting stove of the utility model embodiment mono-comprises the short net of secondary, electrode 3, body of heater 4 and update device.Body of heater 4 can be the various type of furnaces that are applicable to corundum smelting, comprises Cinker clew furnace, dumping furnace, banishes stove and banishes dumping furnace; Electrode 3 is arranged in body of heater 4, and it includes two groups of positive and negative electrodes, and all positive and negative electrodes are uniformly distributed setting by annular, and every group of positive and negative electrode is oppositely arranged.The short net of secondary comprises soft bus, electrode holde 2 and two current transformers, electrode holde 2 is installed on electrode 3, soft bus is used for connecting current transformer and electrode holde 2, each current transformer converts the alternating current of an external transformer output to a road independently direct current, and this galvanic current range is preferably between 15000～24000A, and voltage range is preferably between 150～250V.The direct current of each road current transformer output is respectively by independently soft bus and electrode holde 2 are input to one group of positive and negative electrode, each group positive and negative electrode is all become to the galvanic power supply unit of the interior conveying of body of heater 4, therefore, the present embodiment one is conveyed into independently direct current of two-way by above-mentioned two groups of positive and negative electrodes in body of heater 4, thereby forms the fusion zone of the sub-circular can be used for smelting corundum.
Above-mentioned update device 5 connects respectively each electrode holde 2, makes in smelting process, and above-mentioned each electrode holde 2 can move up and down by update device 5 according to technological requirement together with positive and negative electrode.
Embodiment bis-
As shown in Figure 3, multi-electrode direct current corundum smelting stove and the embodiment mono-of the utility model embodiment bis-are basic identical, and their difference is: the electrode 3 of the present embodiment two has additional one group of positive and negative electrode, and the short net of secondary is also corresponding, have additional a current transformer.The present embodiment two-way is too much set up one group of positive and negative electrode, can expand compared to embodiment mono-area of above-mentioned fusion zone.The operation principle of the present embodiment two is identical with embodiment mono-with occupation mode, does not repeat them here.
The utility model does not limit to and the above-mentioned specific embodiment; according to foregoing; according to ordinary skill knowledge and the customary means of this area; do not departing under the above-mentioned basic fundamental thought of the utility model prerequisite; the utility model can also be made equivalent modifications, replacement or the change of other various ways, all drops among protection domain of the present utility model.For example, the present embodiment two can also be by setting up more positive and negative electrode, and carry accordingly independently direct current, realizes the further expansion of fusion zone area.
Claims (4)
1. a multi-electrode direct current corundum smelting stove, comprise the short net of secondary, electrode (3) and body of heater (4), described electrode (3) is arranged in body of heater (4), the short net of described secondary comprises soft bus and electrode holde (2), described electrode holde (2) is installed on electrode (3), outside transformer is described electrode (3) power supply by described soft bus and electrode holde (2) successively, it is characterized in that: described electrode (3) is just being provided with two groups, negative electrode, just all, negative electrode is uniformly distributed setting by annular, and every group just, negative electrode is oppositely arranged, the short net of described secondary also comprises two current transformers, each current transformer converts the alternating current of an external transformer output to a road independently direct current, the direct current of each road current transformer output is respectively by independently soft bus and electrode holde (2) are just being input to one group, negative electrode, via electrode (3) be transported to body of heater (4) Nei Ge road independently direct current be used for smelting corundum.
2. multi-electrode direct current corundum smelting stove according to claim 1, is characterized in that: described electrode (3) is also provided with one group or above positive and negative electrode, and the short net of described secondary is set up the described current transformer of respective numbers.
3. multi-electrode direct current corundum smelting stove according to claim 1 and 2, is characterized in that: described multi-electrode direct current corundum smelting stove also comprises update device (5); Described update device (5) connects respectively described each electrode holde (2), in order to control described each positive and negative electrode, moves up and down.
4. multi-electrode direct current corundum smelting stove according to claim 3, is characterized in that: described galvanic current range is between 15000～24000A, and voltage range is between 150～250V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758964.3U CN203561217U (en) | 2013-11-26 | 2013-11-26 | Multi-electrode direct current corundum smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758964.3U CN203561217U (en) | 2013-11-26 | 2013-11-26 | Multi-electrode direct current corundum smelting furnace |
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| Publication Number | Publication Date |
|---|---|
| CN203561217U true CN203561217U (en) | 2014-04-23 |
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| CN201320758964.3U Expired - Fee Related CN203561217U (en) | 2013-11-26 | 2013-11-26 | Multi-electrode direct current corundum smelting furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916229A (en) * | 2016-05-30 | 2016-08-31 | 北京中凯宏德科技有限公司 | Circular electric furnace and electrode arrangement structure thereof |
| WO2017206700A1 (en) * | 2016-05-30 | 2017-12-07 | 北京中凯宏德科技有限公司 | Circular electric furnace, and electrode arrangement structure thereof |
| CN109612280A (en) * | 2018-12-03 | 2019-04-12 | 北京奥邦新材料有限公司 | A kind of bottomless electrode DC mineral hot furnace of multiloop |
| CN110094965A (en) * | 2018-02-11 | 2019-08-06 | 于文 | Novel DC electric furnace |
-
2013
- 2013-11-26 CN CN201320758964.3U patent/CN203561217U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916229A (en) * | 2016-05-30 | 2016-08-31 | 北京中凯宏德科技有限公司 | Circular electric furnace and electrode arrangement structure thereof |
| WO2017206700A1 (en) * | 2016-05-30 | 2017-12-07 | 北京中凯宏德科技有限公司 | Circular electric furnace, and electrode arrangement structure thereof |
| CN105916229B (en) * | 2016-05-30 | 2019-03-15 | 北京中凯宏德科技有限公司 | Round electric furnace and its electrode arrangement structure |
| EP3468302A4 (en) * | 2016-05-30 | 2019-11-27 | Beijing Zhongkaihongde Technology Co., Ltd. | Circular electric furnace, and electrode arrangement structure thereof |
| CN110094965A (en) * | 2018-02-11 | 2019-08-06 | 于文 | Novel DC electric furnace |
| CN110094965B (en) * | 2018-02-11 | 2024-04-02 | 于文 | Novel direct-current smelting electric furnace |
| CN109612280A (en) * | 2018-12-03 | 2019-04-12 | 北京奥邦新材料有限公司 | A kind of bottomless electrode DC mineral hot furnace of multiloop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHEN GUILIN Free format text: FORMER OWNER: FOSHAN SHUNDE DISTRICT WANDIFU ELECTRICAL APPLIANCES CO., LTD. Effective date: 20150401 |
|
| CB03 | Change of inventor or designer information |
Inventor after: Chen Guilin Inventor before: He Gangfeng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HE GANGFENG TO: CHEN GUILIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150401 Address after: 528300 Shop No. 7, garden, garden, Daliang Town, Shunde District, Foshan, Guangdong, China Patentee after: Chen Guilin Address before: 528300 Shop No. 7, garden, garden, Daliang Town, Shunde District, Foshan, Guangdong, China Patentee before: FOSHAN SHUNDE DISTRICT WANDIFU ELECTRICAL APPLIANCES Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |