CN104089482B - A kind of centreless electric furnace furnace drying device and utilize the roast technic of this device - Google Patents
A kind of centreless electric furnace furnace drying device and utilize the roast technic of this device Download PDFInfo
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- CN104089482B CN104089482B CN201410340728.9A CN201410340728A CN104089482B CN 104089482 B CN104089482 B CN 104089482B CN 201410340728 A CN201410340728 A CN 201410340728A CN 104089482 B CN104089482 B CN 104089482B
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Abstract
The invention provides a kind of centreless electric furnace furnace drying device and utilize the roast technic of this device, by the magnetic conductor generation electromagnetic induction that electric furnace body induction coil and electric furnace inside are set up, the heat produced by electromagnetic induction reaches the object of baker, and the lifting of induction coil voltage is regulated and controled by certain processing step, realize Effective Regulation to furnace temperature, solve the problem that the elevation rate of the roast technics such as resistance wire baker to furnace temperature and furnace temperature can not regulate and control; Avoid crucible furnace lining to crack because of be heated inequality or temperature shock, leakage occurs, ensure that the service life of furnace lining, rational in infrastructure, safe and effective.
Description
Technical field
The invention belongs to technical field of metallurgical equipment, specifically refer to a kind of furnace drying device of centreless electric furnace, and utilize the drying technology of this device.
Background technology
Centreless electric furnace is widely used in zinc founding, zinc-containing alloy configuration etc. are produced, and after electric furnace is newly built by laying bricks or stones, general nature starts baker and heats up after dry one week, continue can come into operation after 10 to 15 days.Prior art generally adopts the roast technic such as firewood baker or resistance wire baker, though this type of technological operation is comparatively easy, all exists and cannot regulate and control fire box temperature and heating rate, cause each position of furnace lining to be heated inequality, can not the technical problem of expanded by heating simultaneously; And in baker temperature-rise period, crucible furnace lining is uneven at expanded by heating, in the situations such as too fast or unexpected cooling that heat up, all can crack, cause the molten metal seepage put into operation in rear furnace body.Therefore, adopt certain technological measure to realize carrying out Effective Regulation to the temperature in burner hearth or heating rate, effectively can ensure the service life of crucible furnace lining, avoid furnace body leakage.In addition, Unequal distance between resistance wire and hearth wall in resistance wire baker, the near spot temperature of distance resistance wire is high, the shortcoming that the spot temperature of distance is low, is heated uneven; Moreover during resistance wire baker, cannot close bell, there is certain heat loss, cannot ensure Baker effect; And there is certain potential safety hazard in the resistance wire leaked outside.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of centreless electric furnace furnace drying device, can Effective Regulation baker furnace temperature, avoid crucible furnace lining inequality of being heated to crack;
Another object of the present invention there is provided the roast technic utilizing said apparatus baker.
A kind of centreless electric furnace furnace drying device, comprises furnace shell, forms burner hearth in described furnace shell by crucible furnace lining, induction coil is provided with between crucible furnace lining and furnace shell, induction coil connects external circuit control system, and be provided with cylindrical magnetic conducting body in described burner hearth, cylindrical magnetic conducting body and burner hearth circumference are equidistantly arranged; Thermo detector is provided with between described cylindrical magnetic conducting body and hearth wall.
Described cylindrical magnetic conducting body is the cylinder steel plate that multilayer concentric is arranged, and passes through link of boards between steel plate.
Distance between described outermost layer tubular steel plate and hearth wall is 80-160mm.
Described cylindrical magnetic conducting body is provided with hanger.
A roast technic for centreless electric furnace furnace drying device, comprises the following steps:
1) remove foreign material in burner hearth, and install thermo detector;
2) cylindrical magnetic conducting body is hung in burner hearth prop up, be located at burner hearth center;
3) check electrical system, close after normal bell, and electric furnace is energized;
4) reach regulation and control in-furnace temperature by regulation and control induction coil external circuit voltage, and realize regulation and control by thermo detector reading numerical values, liter first per hour 3.5 DEG C, when rising to 200 DEG C, constant temperature 48h, period control temperature scope 200 ± 20 DEG C; Then liter per hour 5.5 DEG C, when rising to 400 DEG C, constant temperature 48h, period control temperature scope 400 ± 20 DEG C; Last liter per hour 5.5 DEG C, when rising to 550 DEG C, constant temperature 36h, period control temperature scope 550 ± 20 DEG C;
5) after electric in-furnace temperature reaches set point of temperature, hang out magnetic conductor, after checking that each system of electric furnace is normal, put into production.
The invention has the beneficial effects as follows:
1, by the magnetic conductor generation electromagnetic induction that electric furnace body induction coil and electric furnace inside are set up, the heat produced by electromagnetic induction reaches the object of baker, and by regulating and controlling the lifting of induction coil voltage, realizes the Effective Regulation to furnace temperature;
2, magnetic conductor and hearth wall are equidistantly arranged, and avoid resistance wire baker and to be heated uneven problem;
3, Effective Regulation can be carried out to furnace temperature, avoid crucible furnace lining to crack because of be heated inequality or temperature shock, ensure that the service life of furnace lining, rational in infrastructure, safe and effective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of cylindrical magnetic conducting body in the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention and effect thereof are described further.
As shown in Figure 1, 2, a kind of centreless electric furnace furnace drying device, comprise furnace shell 1, burner hearth 3 is formed by crucible furnace lining 2 in described furnace shell 1, induction coil 4 is provided with between crucible furnace lining 2 and furnace shell 1, described induction coil 4 connects external circuit control system, can realize the lifting to induction coil 4 voltage by the external circuit control system of electric furnace body; Be provided with cylindrical magnetic conducting body 5 in described burner hearth 3, cylindrical magnetic conducting body 5 and burner hearth 3 circumference are equidistantly arranged; Be provided with thermo detector 6 between described cylindrical magnetic conducting body 5 and hearth wall, temperature is by the display of electric furnace external circuit system; There is electromagnetic induction in the cylindrical magnetic conducting body 5 set up by electric furnace body induction coil 4 and electric furnace inside, the heat produced by electromagnetic induction reaches the object of baker, and by regulating and controlling the lifting of induction coil 4 voltage, realize the Effective Regulation to furnace temperature, resistance wire baker then separately must connect power supply; Reduce induction coil 4 voltage or power-off, all can control fire box temperature flexibly, reach baker furnace temperature and be elevated by given pace; Solve the problem that in firewood, combustion gas, resistance wire baker process, temperature cannot accurately control; Avoid crucible furnace lining 2 to crack because of be heated inequality or temperature shock, leakage occurs, ensure that the service life of furnace lining.The cylinder steel plate 7 that described cylindrical magnetic conducting body 5 is arranged for multilayer concentric, is connected by gusset 8 between steel plate; Burner hearth 3 internal magnetic field intensity is successively decreased by circumferential center, cylinder steel plate 7 is traditionally arranged to be layer 2-3, columnar structured consistent with electric furnace liner structure, spacing is equal to, furnace lining energy thermally equivalent, the distance between general outermost layer cylinder steel plate 7 and hearth wall is between 80-160mm, and the spot temperature that when avoiding resistance wire baker, distance resistance wire is near is high, the spot temperature of distance is low, and furnace lining is heated uneven shortcoming; Described cylindrical magnetic conducting body 5 is provided with hanger 9, facilitates hanging in of cylindrical magnetic conducting body to hang out.
Further, the roast technic of centreless electric furnace furnace drying device described above, comprises the following steps:
1) remove foreign material in burner hearth, and install thermo detector;
2) cylindrical magnetic conducting body is hung in burner hearth prop up, be located at burner hearth center;
3) check electrical system, close after normal bell, and electric furnace is energized;
4) regulation and control in-furnace temperature is reached by regulation and control induction coil external circuit voltage, and realize regulation and control by thermo detector reading numerical values, first with the ramp of liter per hour 3.5 DEG C, when rising to 200 DEG C, constant temperature 48h, period control temperature scope 200 ± 20 DEG C, object is to allow steam in stove fully evaporate; Then with the ramp of liter per hour 5.5 DEG C, when rising to 400 DEG C, constant temperature 48h, period control temperature scope 400 ± 20 DEG C, object is the crucible furnace lining even inflation made for refractory material, avoids it to crack; Last with the ramp of liter per hour 5.5 DEG C, when rising to 550 DEG C, constant temperature 36h, period control temperature scope 550 ± 20 DEG C, object is abundant high temperature sintering and detects electric furnace performance;
5) after electric in-furnace temperature reaches set point of temperature, such as zinc founding industry is 600 DEG C, hangs out magnetic conductor, after checking that each system of electric furnace is normal, puts into production.
Cylindrical magnetic conducting body 5 is hung in burner hearth 3, is placed on the fragment of brick 10 that props up in advance, and makes cylindrical magnetic conducting body 5 be positioned at burner hearth center; Utilize electric furnace body power supply, heat up gradually according to certain control rate, cylindrical magnetic conducting body 5, after electric furnace coil electricity, produces electromagnetic induction, for baker provides the thermal source be evenly distributed, solves heating rate inequality, furnace lining is heated uneven problem; Especially the external circuit control system of induction coil 4 can regulate different voltage, and reads in-furnace temperature by thermo detector 6, realizes the effective control to temperature; Under other parts of electric furnace or system fault conditions, also can power down process at any time, continue afterwards to heat up, flexibly and easily.When furnace temperature reaches set point of temperature, hang out cylindrical magnetic conducting body 5, completing baker can put into production.
Claims (1)
1. a roast technic for centreless electric furnace furnace drying device, is characterized in that comprising the following steps:
1) remove foreign material in burner hearth, and install thermo detector;
2) cylindrical magnetic conducting body is hung in burner hearth prop up, be located at burner hearth center;
3) check electrical system, close after normal bell, and electric furnace is energized;
4) reach regulation and control in-furnace temperature by regulation and control induction coil external circuit voltage, and realize regulation and control by thermo detector reading numerical values, liter first per hour 3.5 DEG C, when rising to 200 DEG C, constant temperature 48h, period control temperature scope 200 ± 20 DEG C; Then liter per hour 5.5 DEG C, when rising to 400 DEG C, constant temperature 48h, period control temperature scope 400 ± 20 DEG C; Last liter per hour 5.5 DEG C, when rising to 550 DEG C, constant temperature 36h, period control temperature scope 550 ± 20 DEG C;
5) after electric in-furnace temperature reaches set point of temperature, hang out magnetic conductor, after checking that each system of electric furnace is normal, put into production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410340728.9A CN104089482B (en) | 2014-07-17 | 2014-07-17 | A kind of centreless electric furnace furnace drying device and utilize the roast technic of this device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410340728.9A CN104089482B (en) | 2014-07-17 | 2014-07-17 | A kind of centreless electric furnace furnace drying device and utilize the roast technic of this device |
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| Publication Number | Publication Date |
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| CN104089482A CN104089482A (en) | 2014-10-08 |
| CN104089482B true CN104089482B (en) | 2016-03-30 |
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| CN201410340728.9A Active CN104089482B (en) | 2014-07-17 | 2014-07-17 | A kind of centreless electric furnace furnace drying device and utilize the roast technic of this device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106017105A (en) * | 2016-07-07 | 2016-10-12 | 宁波中能连通机械有限公司 | Furnace drying method of industrial furnace module and furnace drying device of furnace drying method |
| CN114353529A (en) * | 2022-01-12 | 2022-04-15 | 新疆八钢佳域工业材料有限公司 | Furnace lining baking method for zinc melting intermediate frequency furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201688691U (en) * | 2010-04-21 | 2010-12-29 | 西安机电研究所 | Water cooling-free intermediate frequency furnace of inductor |
| CN202747796U (en) * | 2012-09-17 | 2013-02-20 | 秦瑞发 | Drier for furnace body of medium-frequency furnace |
| CN203284449U (en) * | 2013-06-05 | 2013-11-13 | 攀钢集团攀枝花钢钒有限公司 | Sensing heating core device for drying of aluminum and zinc melting furnace |
| CN204115479U (en) * | 2014-07-17 | 2015-01-21 | 白银有色集团股份有限公司 | A kind of centreless electric furnace furnace drying device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6393044B1 (en) * | 1999-11-12 | 2002-05-21 | Inductotherm Corp. | High efficiency induction melting system |
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- 2014-07-17 CN CN201410340728.9A patent/CN104089482B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201688691U (en) * | 2010-04-21 | 2010-12-29 | 西安机电研究所 | Water cooling-free intermediate frequency furnace of inductor |
| CN202747796U (en) * | 2012-09-17 | 2013-02-20 | 秦瑞发 | Drier for furnace body of medium-frequency furnace |
| CN203284449U (en) * | 2013-06-05 | 2013-11-13 | 攀钢集团攀枝花钢钒有限公司 | Sensing heating core device for drying of aluminum and zinc melting furnace |
| CN204115479U (en) * | 2014-07-17 | 2015-01-21 | 白银有色集团股份有限公司 | A kind of centreless electric furnace furnace drying device |
Non-Patent Citations (1)
| Title |
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| 《锌合金生产中工频无芯感应电炉的应用》;刘立群;《湖南有色金属》;20090630;第25卷(第3期);第37-39页 * |
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Effective date of registration: 20170915 Address after: 730900 No. 175 Silver Road, Baiyin District, Gansu, Baiyin Patentee after: Baiyin Nonferrous zinc aluminium profiles Co., Ltd. Address before: 730900 Friendship Road, Baiyin District, Gansu, Baiyin, No. 96 Patentee before: Baiyin Nonferrous Metal Group Co., Ltd. |
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