CN101251337A - Multi-loop direct-current power supply smelting ore furnace - Google Patents
Multi-loop direct-current power supply smelting ore furnace Download PDFInfo
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- CN101251337A CN101251337A CNA2008100349040A CN200810034904A CN101251337A CN 101251337 A CN101251337 A CN 101251337A CN A2008100349040 A CNA2008100349040 A CN A2008100349040A CN 200810034904 A CN200810034904 A CN 200810034904A CN 101251337 A CN101251337 A CN 101251337A
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Abstract
The invention relates to a submerged arc furnace with a multi-loop direct current power supply, wherein, an alternating current power supply becomes a plurality of direct current power supplies after transforming of a transformer and commutating of a rectifier, the direct current power supplies are connected with one end of a corresponding positive negative carbon electrode bar through a short network, the other end of the positive negative carbon electrode bar inserts into the charging in the hearth, the positive negative electrode instantly produces the arc to melt the charging to obtain ferrous alloy products. The submerged arc furnace has the advantages of steady smelting arc, big melting pot, exact electrode control and remarkable energy saving effect, and is applicable to industrialization; the reactance of the short network is zero and the device does not have the eddy current loss.
Description
Technical field
The present invention relates to the hot furnace apparatus in ferroalloy ore deposit, particularly the hot stove in multi-loop direct-current power supply ore deposit such as double loop, three loops.
Background technology
The smelting mine heat furnace of China's The ferroalloy industry use at present almost all uses three-phase alternating-current supply to go into the stove smelting, also has indivedual use single loop dc sources to go into stove and smelts.These AC power electric furnaces, power factor is low, short net reactance is big, power transmitting device kelvin effect phenomenons such as short net and electrode are serious, can not effectively utilize transmission facility, and the alternating current arc instability when smelting, the eddy-current loss that AC power causes is very big, product power consumption height, device damage is serious, fault rate is high, has a strong impact on electric furnace normally using and saving energy and reduce the cost in producing the ferroalloy process; Adopt the electric furnace of single loop dc source,, can only under lab test or be used as the small-scale production of specialities, can't make it industrialization and use because of its heat radiation energy is little.
Summary of the invention
Technical problem of the present invention be to provide a kind of short net reactance to be zero, equipment does not have eddy-current loss, energy-saving effect is obvious, and the hot stove in multi-loop direct-current power supply ore deposit of suitable suitability for industrialized production.
In order to solve above technical problem, the invention provides the hot stove in a kind of multi-loop direct-current power supply ore deposit, AC power several dc sources behind transformer transformation and rectifier rectification, be connected with an end of corresponding positive and negative carbon electrode bar by short net, the other end of positive and negative carbon electrode bar inserts in the interior furnace charge of burner hearth, the arc light melting batch of positive and negative electrode moment generation obtains the ferroalloy product.
The positive and negative carbon electrode bar that described several dc sources connect distributes with circumferential perpendicular to burner hearth.
Described positive and negative carbon electrode bar is parallel to each other.
Superior effect of the present invention is:
1) the present invention uses multi-loop direct-current power supply, and short net reactance is zero, equipment does not have eddy-current loss, and energy-saving effect is very obvious;
2) smelt arc light and stablize, melting kettle is big, and the electrode precise control is fit to industrialization and uses.
Description of drawings
Fig. 1 is a theory diagram of the present invention;
Fig. 2 is the schematic top plan view of double loop of the present invention DC power supply equipment;
Fig. 3 is the schematic top plan view of three loop DC power supply equipment of the present invention;
Fig. 4 is circuit theory diagrams of the present invention;
Fig. 5 is a circuit diagram of the present invention;
The number in the figure explanation
1-dc source A; 2-dc source B;
3-dc source C; The short net of 4-;
The 5-electrode bar; The 6-burner hearth;
The 7-furnace charge; The 8-arc light;
The 9-rectifier; The 10-transformer.
The specific embodiment
See also shown in the accompanying drawing, the invention will be further described.
As shown in Figure 1, the invention provides the hot stove in a kind of multi-loop direct-current power supply ore deposit, AC power several dc sources after transformer 10 transformations and rectifier 9 rectifications, be connected with an end of corresponding positive and negative carbon electrode bar 5 by short net 4, the other end of positive and negative carbon electrode bar 5 inserts in the furnace charge 7 in the burner hearth 6, electrode bar 5 moves up and down in burner hearth 6 and works, powerful arc light 8 melting batch 7 of positive and negative electrode moment generation, thus obtain the ferroalloy product.
Described positive and negative carbon electrode bar 5 is parallel to each other.
As shown in Figure 2, dc source A, dc source B are connected with positive and negative carbon electrode bar 5 by short net 4 respectively, constitute two circuit DC power supply, dc source A, dc source B are respectively to two positive and negative carbon electrode bar 5 power supplies, two dc sources are just to four positive and negative carbon electrode bar 5 power supplies, to carbonaceous burner hearth 6 discharge generation high temperature arc lights 8, furnace charge 7 is melted in high temperature arc light 8 and is reduced into the ferroalloy product dc source through positive and negative carbon electrode bar 5.
As shown in Figure 3, the positive and negative carbon electrode bar that described several dc sources connect distributes with circumferential perpendicular to burner hearth, dc source A, dc source B is connected with positive and negative carbon electrode bar 5 by short net 4 respectively with dc source C, constitute the DC power supply in three loops, dc source A, dc source B and dc source C are respectively to positive and negative carbon electrode bar 5 power supplies of the six roots of sensation, three dc sources are just to positive and negative carbon electrode bar 5 power supplies of the six roots of sensation, to carbonaceous burner hearth 6 discharge generation high temperature arc lights 8, furnace charge 7 is melted in high temperature arc light 8 and is reduced into the ferroalloy product dc source through the positive and negative carbon electrode bar 5 of the six roots of sensation.
As shown in Figure 4 and Figure 5, dc source is made up of rectifier 10 and transformer 9, and AC power is powered to the hot stove in ore deposit after rectifier becomes direct current with alternating current after transformer 9 transformations.Dc source is delivered to positive and negative carbon electrode bar 5 through short net 4, and each dc source is respectively to two positive and negative carbon electrode bar 5 power supplies, and like this, two dc sources are just powered to four positive and negative carbon electrode bars 5, and by that analogy.To carbonaceous burner hearth discharge generation high temperature arc light 8, furnace charge 7 is melted in high temperature arc light 8 and is reduced into the ferroalloy product dc source through positive and negative carbon electrode bar 5.
By that analogy, the hot stove in multi-loop direct-current power supply of the present invention ore deposit has changed traditional single electrode, bipolar electrode, three electrode single supply direct current furnace, make the line heat source and uncontrollable four electrodes, the face of six electrodes, the body heat source of becoming of three electrode electrode of the unipolar heat point source of single supply, bipolar electrode, crucible is big, dual power supply, three power supplys make electrode control freely, accurately.
Claims (2)
1, a kind of multi-loop direct-current power supply smelting ore furnace is characterized in that:
AC power several dc sources behind transformer transformation and rectifier rectification, be connected with an end of corresponding positive and negative carbon electrode bar by short net, the other end of positive and negative carbon electrode bar inserts in the interior furnace charge of burner hearth, and the arc light melting batch of positive and negative electrode moment generation obtains the ferroalloy product.
2, by the described a kind of multi-loop direct-current power supply smelting ore furnace of claim 1, it is characterized in that:
The positive and negative carbon electrode bar that described several dc sources connect distributes with circumferential perpendicular to burner hearth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100349040A CN101251337A (en) | 2008-03-20 | 2008-03-20 | Multi-loop direct-current power supply smelting ore furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100349040A CN101251337A (en) | 2008-03-20 | 2008-03-20 | Multi-loop direct-current power supply smelting ore furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101251337A true CN101251337A (en) | 2008-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100349040A Pending CN101251337A (en) | 2008-03-20 | 2008-03-20 | Multi-loop direct-current power supply smelting ore furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN101251337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2008
- 2008-03-20 CN CNA2008100349040A patent/CN101251337A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080827 |