CN203509015U - Resistance roaster - Google Patents
Resistance roaster Download PDFInfo
- Publication number
- CN203509015U CN203509015U CN201320620121.7U CN201320620121U CN203509015U CN 203509015 U CN203509015 U CN 203509015U CN 201320620121 U CN201320620121 U CN 201320620121U CN 203509015 U CN203509015 U CN 203509015U
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- China
- Prior art keywords
- resistance
- roaster
- tundish
- control system
- temperature control
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- Expired - Fee Related
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Abstract
The utility model provides a resistance roaster. The resistance roaster comprises a resistance wire, an inner furnace tube, a heat-insulating furnace cover, a temperature measuring galvanic couple, a temperature control system and a power controller, wherein the inner furnace tube is fixed to the bottom of the heat-insulating furnace cover, the resistance wire is embedded into a spiral groove formed in the outer surface of the inner furnace tube, the temperature measuring galvanic couple is arranged on the outer side of the inner furnace tube, the upper end of the temperature measuring galvanic couple is connected with the temperature control system, and the resistance wire and the temperature control system are connected with the power controller. According to the resistance roaster, electricity serves as a heat source, heat efficiency is high, and thermal regulation can be easily controlled; due to the fact that a resistance furnace structure is formed by the resistance roaster and a tundish, roasting efficiency of the tundish can be effectively improved, the service life of a furnace body can be effectively prolonged, fuel such as diesel oil or gas is prevented from being used, and the problem that the environment and a tundish body are polluted is fundamentally solved; the resistance roaster is especially applicable to drying of wet tundish of castable, and small-sized tundishes without sufficient gas sources or oil sources.
Description
Technical field
The utility model belongs to heater field, is specifically related to a kind of resistance roaster for slag baking of tundish.
Background technology
At present, both at home and abroad smelter mainly utilizes Ladle-casting apparatus to be dried and to toast steel (iron) bag, iron bag, tundish etc., is divided into vertical and horizontal two kinds, and fuel be take liquid diesel fuel and gaseous fuel coal gas as main.Because combustion air amount is under-supply bad with air and combustion gas mixing, fuel combustion is insufficient, and the thermal efficiency is low, and exhaust emission is large, causes the serious waste of the energy.In addition,, due to incomplete combustion and high-temp combustion, diffuse CO, SO in workshop
2, the pernicious gas such as NOx and floating dust isoconcentration very high, the burning of some Ladle-casting apparatus is chewed noise and is exceeded standard, serious environment pollution.
Chinese Patent Application No. 200920137247.2 discloses " a kind of steel ladle heater ", its particular content is: on existing Ladle-casting apparatus, add hyperbaric oxygen rifle, flame injection is arrived to steel ladle bottom, guarantee that bottom baking puts in place, improve baking quality and steel ladle age, thereby raising utilization rate of equipment and installations, reduces production costs.It is major technique thinking that this patent be take the roasting bag of combustion gas, is applicable to the baking of large-scale steel ladle, tundish, due to without accurate temperature controlling measure, can not be for newly playing the baking of castable, and also without any improvement to the pollution problem of environment.
Chinese Patent Application No. 201020147977.2 provides " a kind of pouring ladle is carried out to dry Ladle-casting apparatus ", and its Ladle-casting apparatus comprises: shell, intermediate layer, nexine, air outlet, blast orifice, top cover.Shell is formed by 8mm Plate Welding, and intermediate layer is refractory brick, and nexine is fire clay, and there is ventilating opening in outside, and blast orifice is arranged at inner chamber bottom, and there is top cover on top.During work in cavity put-focus charcoal, air blast blasts air blast hole by wind, hot blast is gushed out from air outlet, and pouring ladle is toasted, and once can toast 2 casting ladles, thereby can shorten baking time, raises the efficiency, cost-saving.It is main origin of heat that this utility model be take shortage, the surging coke of price, though the efficiency of heating surface is improved, but because coke directly contacts with ladle or tundish, can pollute ladle or basket pouring material, be not suitable for the tundish preheating of other purposes, nor can be applied to preheating or the new tundish of dampness castable of beating of baking.
In sum, existing baking of tundish device and technique are not all suitable for direct mode of heating and carry out preheating or the new tundish of dampness castable of beating of baking, and the thermal efficiency is lower while toasting with diesel oil, coal gas, and the problems such as environmental pollution that cause are not solved at all or obviously improve.
Summary of the invention
The utility model is intended to overcome the defect that prior art exists, and a kind of pollution that can fundamentally eliminate environment and tundish body is provided, and improves the efficiency of heating surface and converter life, is particularly useful for resistance roaster dry and oven dry moisture state castable tundish.
For this reason, the solution that the utility model is taked is:
A resistance roaster, is characterized in that, comprises resistance wire, interior boiler tube, heat insulation bell, thermometric galvanic couple, temperature control system and power-supply controller of electric; Below heat insulation bell, be fixed with interior boiler tube, interior boiler tube pipe shaft is outer, and with spiral groove, groove is embedded with resistance wire, and thermometric galvanic couple is arranged at interior boiler tube outside, thermometric galvanic couple upper end is connected with temperature control system, and resistance wire and temperature control system are respectively by wire connecting power controller.
Described resistance wire adopts ferrum-chromium-aluminum matter or nickel chromium triangle matter alloy electric heating element.
In described heat insulation bell, be filled with the high alumina castable that 50～300mm is thick.
The beneficial effects of the utility model are:
Because the utility model be take electricity as thermal source, by heating, by electric energy conversion, be heat energy, in tundish, metal is heated, formed a resistance furnace structure together with tundish.Therefore, compared with the prior art there is following positive effect:
1, can avoid using the resource fuel such as diesel oil or coal gas, fundamentally solve CO in flue gas, SO
2, the pollution to environment and tundish body such as the pernicious gas such as NOx and floating dust.
2, by forming relative confined space, can effectively improve the efficiency of heating surface and the converter life of tundish.
3, the thermal efficiency is high, can reach 50-80 ℅, and thermal regulation is easily controlled, and is applicable to the heater that temperature control precision is higher.
4, the tundish that can directly dry castable under moisture state, reduces the operations such as independent baking molding castable.Especially in the small-sized slag tundish use field not possessing under abundant source of the gas, oil sources condition, have more clear superiority.
Accompanying drawing explanation
Fig. 1 is that resistance roaster is used state generalized section.
In figure: resistance wire 1, interior boiler tube 2, heat insulation bell 3, thermometric galvanic couple 4, boiler tube holder 5, suspension ring 6, temperature control system 7, power-supply controller of electric 8, high alumina castable 9, tundish 10.
The specific embodiment
The utility model resistance roaster is mainly comprised of resistance wire 1, interior boiler tube 2, heat insulation bell 3, thermometric galvanic couple 4, temperature control system 7 and power-supply controller of electric 8.Heat insulation bell 3 is a disc, in the middle of the upper surface of disk, be provided with boiler tube holder 5, heat insulation bell 3 lower surface interpositions are equipped with by a fixing interior boiler tube 2 made from ferrum-chromium-aluminum matter or nickel chromium triangle matter alloy electric heating element of boiler tube holder 5, interior boiler tube 2 pipe shafts are processed with spiral groove outward, groove is embedded with resistance wire 1, and resistance wire 1 upper end is connected with power-supply controller of electric 8 by wire.For ease of handling, in the upper end of heat insulation bell 3, be welded with suspension ring 6.Meanwhile, in heat insulation bell 3, be filled with the high alumina castable 9 that 200mm is thick, and high alumina castable 9 lower surfaces are higher than the lower surface of heat insulation bell 3.Thermometric galvanic couple 4 is arranged on the outside of interior boiler tube 2, and the upper end of thermometric galvanic couple 4 is connected with temperature control system 7, and temperature control system 7 is by wire connecting power controller 8.
During heating, take tundish 10 as housing, resistance roaster is vertically stretched in tundish 10, by thermometric galvanic couple 4, measure temperature feedback and control power, to realize the accurate temperature controlling of resistance wire 1.
While drying the tundish 10 of castable under moisture state, tundish 10 bell 3 lower surfaces suitable for reading and heat insulation keep the distance of 10～50mm, by temperature control system 7 according to uniform temperature control system temperature control, so that the moisture that baking volatilizes during tundish is overflowed in time from gap.
While toasting the tundish 10 of castable under drying regime, tundish 10 bell 3 lower surfaces suitable for reading and heat insulation keep the distance of 0～10mm, make the relatively airtight space of the interior formation of tundish 10, improve the efficiency of heating surface, by temperature control system 7, keep the interior temperature of tundish 10 at 300～1200 ℃.
Claims (3)
1. a resistance roaster, is characterized in that, comprises resistance wire, interior boiler tube, heat insulation bell, thermometric galvanic couple, temperature control system and power-supply controller of electric; Below heat insulation bell, be fixed with interior boiler tube, interior boiler tube pipe shaft is outer, and with spiral groove, groove is embedded with resistance wire, and thermometric galvanic couple is arranged at interior boiler tube outside, thermometric galvanic couple upper end is connected with temperature control system, and resistance wire and temperature control system are respectively by wire connecting power controller.
2. resistance roaster according to claim 1, is characterized in that, described resistance wire adopts ferrum-chromium-aluminum matter or nickel chromium triangle matter alloy electric heating element.
3. resistance roaster according to claim 1, is characterized in that, in described heat insulation bell, is filled with the high alumina castable that 50～300mm is thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620121.7U CN203509015U (en) | 2013-10-09 | 2013-10-09 | Resistance roaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620121.7U CN203509015U (en) | 2013-10-09 | 2013-10-09 | Resistance roaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203509015U true CN203509015U (en) | 2014-04-02 |
Family
ID=50367997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620121.7U Expired - Fee Related CN203509015U (en) | 2013-10-09 | 2013-10-09 | Resistance roaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203509015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106232265A (en) * | 2014-05-08 | 2016-12-14 | 日本坩埚株式会社 | Casting ladle heater |
-
2013
- 2013-10-09 CN CN201320620121.7U patent/CN203509015U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106232265A (en) * | 2014-05-08 | 2016-12-14 | 日本坩埚株式会社 | Casting ladle heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Xiangfeng Inventor after: Yang Dazheng Inventor after: Ma Guangyu Inventor after: Liu Changpeng Inventor after: Xu Pengfei Inventor after: Zhang Dakui Inventor after: Yu Shujuan Inventor after: Hou Hongyu Inventor after: Geng Jishuang Inventor after: Qian Feng Inventor before: Wang Xiangfeng Inventor before: Yang Dazheng Inventor before: Ma Guangyu Inventor before: Liu Changpeng Inventor before: Xu Pengfei Inventor before: Zhang Dakui Inventor before: Yu Shujuan Inventor before: Hou Hongyu Inventor before: Geng Jishuang Inventor before: Qian Feng |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20191009 |