CN203132321U - Six-electrode alternating-current submerged arc furnace - Google Patents

Six-electrode alternating-current submerged arc furnace Download PDF

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Publication number
CN203132321U
CN203132321U CN 201320084012 CN201320084012U CN203132321U CN 203132321 U CN203132321 U CN 203132321U CN 201320084012 CN201320084012 CN 201320084012 CN 201320084012 U CN201320084012 U CN 201320084012U CN 203132321 U CN203132321 U CN 203132321U
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China
Prior art keywords
electrode
groups
transformer
phase
submerged arc
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Expired - Fee Related
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CN 201320084012
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Chinese (zh)
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崔存生
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CHENGDU GAOWEI ENERGY-SAVING TECHNOLOGY CO LTD
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CHENGDU GAOWEI ENERGY-SAVING TECHNOLOGY CO LTD
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Abstract

The utility model discloses a six-electrode alternating-current submerged arc furnace. Six phases of electrodes are evenly distributed in the submerged arc furnace, the voltage gradients, the current density distribution, the power and the power circles of all electrodes in the submerged arc furnace are identical, the power circles of the six phases of electrodes intersect reasonably, the temperature of a reaction area in the submerged arc furnace is in balance, and under the condition of keeping the diameters of the electrodes identical, the capacity and the production volume of the submerged arc furnace can be increased by more than two times. The furnace body heat waste of yield per unit is obviously reduced, the electricity unit consumption of yield per unit can be obviously reduced, and manpower is saved by more than 40%. The six-electrode alternating-current submerged arc furnace is simple in structure, easy to manufacture, convenient to popularize, and capable of further improving the capacity of the submerged arc furnace, improving heating efficiency, simplifying the structure, reducing manufacturing cost and prolonging service life.

Description

Six electrodes exchange the hot stove in ore deposit
Technical field
The utility model relates to the hot stove in a kind of ore deposit, especially relates to a kind of six electrodes and exchanges the hot stove in ore deposit.
Background technology
The hot stove in ore deposit, various resistance electric arc furnaces such as furnace of calcium carbide, ferro-alloy furnace, yellow phosphorus stove have been contained, the product of smelting has products such as calcium carbide, yellow phosphorus, ferrosilicon, ferrochrome, silicomanganese, ferronickel, corundum, ferrotianium, plumbous zinc, the core theory that it is smelted is: form directed high temperature ion stream-electric arc by furnace charge current preheating furnace charge, ionization furnace gas, convert electric energy to heat energy, for reduction reaction provides sufficiently high temperature field.
The electrode that the hot stove in existing ore deposit is installed mainly is three-phase electrode, along with continuing to increase of the hot stove power in ore deposit, the hot stove in three-phase electrode ore deposit has certain limitation, operation natural power factor (about 0.65) on the low side, the power of single-phase electrode is excessive, and the distance between the three-phase electrode can increase thereupon, and namely the utmost point heart of the hot stove in ore deposit circle increases, when utmost point heart circle increases, the distribution of temperature field in furnace can occur deviation big, be that electric furnace central temperature problem on the low side occurs; Simultaneously, the hot stove operate power in ore deposit also can occur when not high enough, three-phase electrode crucible district is not communicated with, the problem that the working of a furnace is difficult to control; The yellow phosphorus stove of power more than 15000KVA adopted the way of arranging six strip electrodes at same utmost point heart circle, and perhaps in two close ways that utmost point heart circle is arranged three strip electrodes respectively of diameter, no matter which kind of is arranged, all has stove center temperature problem on the low side.The hot stove high-power in ore deposit has become developing tendency in future, it is advantageous that reduce investment outlay, save manpower, unit cost is low.How to solve the problem of the high-power and temperature field in furnace balance of the hot stove in ore deposit, become one of key issue of the hot stove large scale development in ore deposit.
The utility model content
The utility model has overcome shortcoming of the prior art, provide a kind of six electrodes to exchange the hot stove in ore deposit, can significantly improve the natural power factor of the hot stove of large ore, solve the difficult problem of the temperature field degree of balance difference that existing three electrode ore-smelting furnaces and six electrode ore-smelting furnaces exist effectively, particularly solved in the ore deposit difficult problem that the working of a furnace was difficult to control when hot stove was than underrun.
The technical solution of the utility model is: a kind of six electrodes exchange the hot stove in ore deposit, comprise body of heater and be arranged on body of heater outer transformer and electrode lifting device, described electrode lifting device is perpendicular to the body of heater setting, electrode is installed in electrode lifting device, described electrode stretches in the interior furnace charge of body of heater, and described electrode is connected with transformer by short net; Described electrode comprises two groups of three-phase electrode A1, B1, C1 and A2, B2, C2, described transformer is three single-phase transformer A, B, C, two groups of three-phase electrodes all constitute equilateral triangle, one group is arranged clockwise, another group is for arranging counterclockwise, two groups of triangles stand upside down each other, the shape approximation rhombus that the four sides furnace wall of body of heater surrounds, and the beeline of every phase electrode spacing furnace wall inwall all equates; The primary side of three single-phase transformer A, B, C is connected with electrical network, and secondary side is connected with electrode by Water cooling cable; Two groups of three-phase electrodes form independently two groups of galvanic circles in stove; At six-phase electrode and short net junction current transformer is installed.
Two groups of vertexs of a triangle lay respectively on another extensions of organizing leg-of-mutton base.
The line of two groups of vertexs of a triangle is vertically divided two groups of leg-of-mutton bases equally.
Compared with prior art, the utility model has the advantages that: six-phase electrode is evenly arranged in stove, the voltage gradient of every phase electrode in stove is identical during operation, electric current distribution is identical, power is identical, the power circle is identical, six-phase electrode power circle rationally intersects, reaction in furnace district temperature balance is keeping under the identical situation of electrode diameter, and the hot heat size in ore deposit and output can increase more than the twice; Specific yield body of heater heat waste obviously reduces, and unit product output electricity unit consumption can obviously reduce, and saves manpower more than 40%.Simple in structure, make easily, be convenient to promote; Can further improve the hot heat size in ore deposit, increase the thermal efficiency, simplified structure, reduction cost of manufacture, increase the service life.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the plan structure schematic diagram of the utility model embodiment one;
Fig. 2 is the plan structure schematic diagram of the utility model embodiment two.
The specific embodiment
A kind of six electrodes exchange the hot stove in ore deposit, comprise body of heater and be arranged on body of heater outer transformer and electrode lifting device, described electrode lifting device is perpendicular to the body of heater setting, electrode is installed in electrode lifting device, described electrode stretches in the interior furnace charge of body of heater, described electrode is connected with transformer by short net, and the lifting of electrode is carried out Based Intelligent Control by computer automatic control system.
Embodiment one:
The laying of electrode, short net and transformer and connected mode as shown in Figure 1, wherein: 1,2,3 is first group of three-phase electrode (A1, B1, C1), 4,5,6 is second group of three-phase electrode (A2, B2, C2), 7,8,9 is three single-phase transformers (A, B, C); 10 is furnace wall; First group of three-phase electrode (A1, B1, C1) constitutes equilateral triangle, and be arranged clockwise, second group of three-phase electrode (A2, B2, C2) constitutes equilateral triangle, and be to arrange counterclockwise, two groups of triangles stand upside down each other, and two groups of vertexs of a triangle (A1, A2) lay respectively on another extensions of organizing leg-of-mutton base (B2-C2, B1-C1); The shape approximation rhombus that the four sides furnace wall 10 of body of heater surrounds, the beeline of every phase electrode spacing furnace wall inwall all equate; Three single-phase transformer (A, B, C) primary side and 35KV (or 110KV 220KV etc.) electrical network is connected, secondary side is connected with electrode by the heavy in section Water cooling cable, wherein: first group of three-phase electrode (A1, B1, C1) by heavy in section Water cooling cable 11,12,14,16,18,22 and transformer (A, B, C) link to each other, concrete connected mode is: the x terminal of transformer A, first Water cooling cable 11, electrode B 1, second Water cooling cable 12, the a terminal of transformer B, the x terminal of transformer B, four-way water power cable 14, electrode C1, the 6th Water cooling cable 16, the a terminal of transformer C, the x terminal of transformer C, the 8th Water cooling cable 18, electrode A 1, the 12 Water cooling cable 22, the x terminal of transformer A connects successively; In like manner, second group of three-phase electrode (A2, B2, C2) links to each other with transformer (A, B, C) by heavy in section Water cooling cable 13,15,17,19,20,21, and concrete connected mode is: a terminal of a terminal of a terminal of the x terminal of transformer A, the 11 Water cooling cable 21, electrode B 2, threeway water power cable 13, transformer B, the x terminal of transformer B, five-way water power cable 15, electrode C2, the 7th Water cooling cable 17, transformer C, the x terminal of transformer C, the 9th Water cooling cable 19, electrode A 2, the tenth Water cooling cable 20, transformer A connects successively.First Water cooling cable 11 and the 11 Water cooling cable 21, the tenth Water cooling cable 20 and the 12 Water cooling cable 22 in the low-pressure side of transformer A are and tie; Second Water cooling cable 12 and threeway water power cable 13, four-way water power cable 14 and five-way water power cable 15 low-pressure sides at transformer B are and tie; The 6th Water cooling cable 16 and the 7th Water cooling cable 17, the 8th Water cooling cable 18 and the 9th Water cooling cable 19 in the low-pressure side of transformer C are and tie; First group of three-phase electrode (A1, B1, C1) forms independently galvanic circle in stove; Second group of three-phase electrode (A2, B2, C2) forms independent galvanic circle in stove.
At six-phase electrode (A1, B1, C1, A2, B2, C2) and short net junction great current mutual inductor is installed, in order to measure the six-phase electrode electric current; The six-phase electrode electric current input computer automatic control system of surveying is used for Based Intelligent Control is carried out in the lifting of electrode.
The floor space of embodiment one this laying mode is little, and investment economizes, still, because three position resolver skewness, there is certain deviation in the short net length of six-phase electrode, and wherein short net is the longest mutually for C2, the impedance maximum, operate power with other five mutually electrode have certain deviation, be weak phase.
Embodiment two:
As shown in Figure 2, embodiment two is as follows with the difference of embodiment one:
Three single-phase transformers (A, B, C) are symmetrically distributed for equilateral triangle, and two groups of triangles stand upside down each other, and the line of two groups of vertexs of a triangle (B1, C2) is vertically divided two groups of leg-of-mutton bases (A1-C1, A2-B2) equally.
Embodiment two this laying modes make the short net between six-phase electrode and the transformer be more evenly distributed, impedance more balance some, the power-balance degree of six-phase electrode is better in the stove, temperature field in furnace is more evenly distributed.

Claims (3)

1. an electrode exchanges the hot stove in ore deposit, it is characterized in that: comprise body of heater and be arranged on body of heater outer transformer and electrode lifting device, described electrode lifting device is perpendicular to the body of heater setting, electrode is installed in electrode lifting device, described electrode stretches in the interior furnace charge of body of heater, and described electrode is connected with transformer by short net; Described electrode comprises two groups of three-phase electrode A1, B1, C1 and A2, B2, C2, described transformer is three single-phase transformer A, B, C, two groups of three-phase electrodes all constitute equilateral triangle, one group is arranged clockwise, another group is for arranging counterclockwise, two groups of triangles stand upside down each other, the shape approximation rhombus that the four sides furnace wall of body of heater surrounds, and the beeline of every phase electrode spacing furnace wall inwall all equates; The primary side of three single-phase transformer A, B, C is connected with electrical network, and secondary side is connected with electrode by Water cooling cable; Two groups of three-phase electrodes form independently two groups of galvanic circles in stove; At six-phase electrode and short net junction current transformer is installed.
2. six electrodes according to claim 1 exchange the hot stove in ore deposit, and it is characterized in that: two groups of vertexs of a triangle lay respectively on another extensions of organizing leg-of-mutton base.
3. six electrodes according to claim 1 exchange the hot stove in ore deposit, and it is characterized in that: the line of two groups of vertexs of a triangle is vertically divided two groups of leg-of-mutton bases equally.
CN 201320084012 2013-02-25 2013-02-25 Six-electrode alternating-current submerged arc furnace Expired - Fee Related CN203132321U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103105053A (en) * 2013-02-25 2013-05-15 成都高威节能科技有限公司 Six phase electrode alternating submerged arc furnace
CN103604292A (en) * 2013-11-20 2014-02-26 勾武 Three-phase alternating-current ore smelting furnace and method for controlling furnace condition thereof
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
CN107401917A (en) * 2017-09-15 2017-11-28 巴涌 One kind is without interpolar branch current ore-smelting electric furnace
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

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103105053A (en) * 2013-02-25 2013-05-15 成都高威节能科技有限公司 Six phase electrode alternating submerged arc furnace
CN103105053B (en) * 2013-02-25 2014-07-23 成都高威节能科技有限公司 Six phase electrode alternating submerged arc furnace
CN103604292A (en) * 2013-11-20 2014-02-26 勾武 Three-phase alternating-current ore smelting furnace and method for controlling furnace condition thereof
CN103604292B (en) * 2013-11-20 2015-11-18 勾武 Three-phase alternating current mineral hot furnace furnace control method and three-phase alternating current mineral hot furnace
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
CN107401917A (en) * 2017-09-15 2017-11-28 巴涌 One kind is without interpolar branch current ore-smelting electric furnace
WO2019052499A1 (en) * 2017-09-15 2019-03-21 巴涌 Electric ore heating furnace with no branch current between electrodes

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Granted publication date: 20130814

Termination date: 20190225