CN207655906U - A kind of long-life resistance roaster - Google Patents
A kind of long-life resistance roaster Download PDFInfo
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- CN207655906U CN207655906U CN201721714742.6U CN201721714742U CN207655906U CN 207655906 U CN207655906 U CN 207655906U CN 201721714742 U CN201721714742 U CN 201721714742U CN 207655906 U CN207655906 U CN 207655906U
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- boiler tube
- interior boiler
- interior
- resistance wire
- resistance
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Abstract
A kind of long-life resistance roaster, including interior boiler tube, resistance wire, heat-insulated bell；Interior boiler tube is set in tundish, and the fixed seat of interior boiler tube upper end is fixedly connected with heat-insulated bell, and heat-insulated bell is arranged in the upper end of tundish, and resistance wire is wound on interior boiler tube；Groove is equipped on the excircle of interior boiler tube, the resistance wire for being wound in interior outer surface of furnace tube is embedded in groove；In the outer surface of resistance wire several refractory mortar strip of paper used for sealings are axially pasted with along interior boiler tube；Interior boiler tube core is provided with supporting rod, the upper end of supporting rod is fixedly connected by nut with the fixed seat of interior boiler tube upper end, and fixed end is fixed on the bottom of interior boiler tube by nut by lower end；It is filled with layers of insulating fabric in the hollow position of interior boiler tube.The utility model avoids, using fuel such as diesel oil or coal gas, fundamentally solving CO, SO in flue gas2、NOxThe pollution of equal pernicious gases and floating dust etc. to environment and tundish ontology；The service life of resistance roaster is significantly improved simultaneously.
Description
Technical field
The utility model is related to the bakings that resistance furnace technical field more particularly to a kind of resistance furnace carry out medium and small tundish
It is roasting to use long-life resistance roaster.
Background technology
Smelter is mainly dried using Ladle-casting apparatus and toasts steel (iron) packet, iron packet, tundish etc. both at home and abroad at present,
It is divided into vertical and two kinds horizontal, fuel is based on liquid diesel fuel and gaseous fuel coal gas.Since combustion air amount is supplied
The mixing of insufficient and air fuel gas is bad, and fuel combustion is insufficient, and the thermal efficiency is low, and exhaust emission is big, causes the serious waste of the energy.
Further, since incomplete combustion and high-temp combustion, diffuse CO, SO into workshop2、NOxEqual pernicious gases and floating dust isoconcentration are very
The burning nozzle noise of height, some Ladle-casting apparatus is exceeded, seriously pollutes environment.
There are also baking of tundish or the relevant patent of preheating and documents both at home and abroad, as Chinese Patent Application No. is
200920137247.2, it is entitled《A kind of steel ladle heater》Utility model patent, particular content is：In existing roasting packet
High pressure oxygen rifle is added on device, by flame injection to steel ladle bottom, it is ensured that bottom is toasted in place, and baking quality and steel are improved
In water packet age, utilization rate of equipment and installations is improved, production cost is reduced.The patent, for main technical thought, is suitable for the roasting packet of combustion gas
The baking of large-scale steel ladle, tundish, due to no accurate temperature controlling measure, it is impossible to be used in the new baking for beating castable, and to ring
The pollution problem in border is without any improvement.
And resistance furnace converts electrical energy into thermal energy using electricity as heat source by heating element, is heated to metal in stove.
Resistance furnace is compared with flame furnace, and the thermal efficiency is high, and up to 50-80 ℅, thermal regulation is easy to control, and working condition is good, converter life
It is long, it is suitable for requiring the heating of tighter workpiece.
But for the resistance furnace of baking of tundish, there is also some technological deficiencies, including use the easy loosening and releasing of resistance wire,
Short life etc. limits use of the resistance furnace technology in baking of tundish field.Such as application No. is 201320620121.7, names
For《A kind of resistance roaster》Utility model patent, the resistance wire of interior boiler tube periphery is wrapped in, the case where expanding with heat and contract with cold
Under just easily fall off, shorten resistance roaster service life.
Therefore, baking of tundish device and technique are not suitable for directly heating mode and are preheated or dried in the prior art
The roasting new tundish for beating dampness castable, the thermal efficiency is relatively low when being toasted with diesel oil, coal gas, causes apparent environmental pollution
The problems such as do not solved or be obviously improved at all, the problems such as and resistance furnace is there are resistance wire is easily broken, short life, limit electricity
Hinder the use of roaster.
Utility model content
The purpose of this utility model is to provide a kind of long-life resistance roaster, overcomes the shortcomings of the prior art, keeps away
Exempt from, using fuel such as diesel oil or coal gas, fundamentally to solve CO, SO in flue gas2、NOxEqual pernicious gases and floating dust etc. to environment with
The pollution of tundish ontology, while improving the service life of resistance roaster.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of long-life resistance roaster, including interior boiler tube, resistance wire, heat-insulated bell；Interior boiler tube is set in tundish,
The fixed seat of interior boiler tube upper end is fixedly connected with heat-insulated bell, and heat-insulated bell is arranged in the upper end of tundish, is twined on interior boiler tube
It is wound with resistance wire；On the excircle of the interior boiler tube be equipped with groove, be wound in interior outer surface of furnace tube resistance wire be embedded in it is recessed
In slot；In the outer surface of resistance wire several refractory mortar strip of paper used for sealings are axially pasted with along interior boiler tube；It is provided in interior boiler tube core
The upper end of supporting rod, the supporting rod is fixedly connected by nut with the fixed seat of interior boiler tube upper end, and lower end will be consolidated by nut
Fixed end head is fixed on the bottom of interior boiler tube；It is filled with layers of insulating fabric in the hollow position of the interior boiler tube.
The groove is U-shaped, depth >=1.3 times resistance wire diameter.
The supporting rod is the heat resisting steel material solid bar of 1~2 a diameter of 20~50mm.
The material of the layers of insulating fabric is heat-resisting rock wool or alumina silicate fibre.
Compared with prior art, the utility model has the beneficial effects that：
1) it avoids, using fuel such as diesel oil or coal gas, fundamentally solving CO, SO in flue gas2、NOxIt waits pernicious gases and floats
The pollution to environment and tundish ontology such as dirt；
2) by forming opposite confined space, the efficiency of heating surface and converter life of tundish are improved；
3) tundish that can directly dry castable under moisture state, reduces the processes such as independent baking molding castable；
4) U-shaped depth recess and refractory mortar encapsulation technology are used, limit and reduces resistance wire in high temperature long-time
Aeration level after use, hence it is evident that improve the service life of resistance roaster.
Therefore, the utility model has apparent economic benefit and environmental benefit, in industry especially fills not having
The small-sized slag tundish divided under air source, oil-source condition has apparent economic benefit using field and promotes practical value.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of long-life resistance roaster of the utility model.
Fig. 2 is the schematic diagram of interior boiler tube in the utility model.
Fig. 3 is the partial enlarged view of mounting structure of the resistance wire on interior boiler tube in the utility model.
In figure：Boiler tube, 3- supporting rods, 4- fixed ends, the heat-insulated bells of 5-, 6- thermometrics galvanic couple, 7- in 1- resistance wires, 2-
Hook, 8- temperature feedback controls system, 9- power-supply controller of electric, 10- tundish, 11- refractory mortars strip of paper used for sealing, 12- layers of insulating fabrics.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
See shown in Fig. 1-Fig. 3, a kind of long-life resistance roaster, including interior boiler tube 2, resistance wire 1, heat-insulated bell 5；Interior stove
Pipe 2 is set in tundish 10, and the fixed seat of 2 upper end of interior boiler tube is fixedly connected with heat-insulated bell 5, and heat-insulated bell 5 is arranged in
Between packet 10 upper end, resistance wire 1 is wound on interior boiler tube 2；It is equipped with groove on the excircle of the interior boiler tube 2, is wound in
The resistance wire 1 of 2 outer surface of interior boiler tube is embedded in groove；In the outer surface of resistance wire 1 several are axially pasted with along interior boiler tube
Refractory mortar strip of paper used for sealing 11；2 core of interior boiler tube is provided with supporting rod 3, the upper end of the supporting rod 3 passes through nut and interior boiler tube 2
The fixed seat of upper end is fixedly connected, and fixed end 4 is fixed on the bottom of interior boiler tube 2 by nut by lower end；In the interior boiler tube
2 hollow position is filled with layers of insulating fabric 12.
The groove is U-shaped, 1 diameter of depth >=1.3 times resistance wire.Prevent resistance wire 1 after high temperature long-time use
Short circuit phenomenon caused by loosening overlap joint.1 surface longitudinal of resistance wire is sealed by 2~4 refractory mortar strip of paper used for sealings 11 on interior boiler tube 2
Dress limits aeration level of the resistance wire 1 after high temperature long-time use and improves service life.
The supporting rod 3 is the heat resisting steel material solid bar of 1~2 a diameter of 20~50mm.It is connected by supporting rod 3
The interior sinking of boiler tube 2 when usage time can be prevented longer of the fixed end 4 of 2 bottom of interior boiler tube.
The material of the layers of insulating fabric 12 is heat-resisting rock wool or alumina silicate fibre.2 central empty portion of boiler tube in roaster
Divide and be filled with heat-resisting rock wool or alumina silicate fibre, improve the intensity and embrittlement ability of resistance wire 1 under the conditions of baking temperature, extends
Roaster service life.
Further include thermometric galvanic couple 6, hook 7, temperature feedback control system 8 and power-supply controller of electric 9.1 external tapping of resistance wire connects
Power-supply controller of electric 9 is connect, thermometric galvanic couple 6 is arranged in tundish 10, thermometric galvanic couple 6 and temperature feedback control system 8 and power supply control
Device 9 processed connects, and hook 7 is fixed on the upper end of heat-insulated bell 5.
Roaster with tundish 10 is furnace body when using, and interior boiler tube 2 is inserted perpendicularly into tundish 10, thermometric galvanic couple is passed through
6 measuring temperatures simultaneously control 9 magnitude of current of power-supply controller of electric to realize the accurate temperature controlling of roaster by temperature feedback control system 8.
Roaster can be lifted the tundish 10 that comes in and goes out by hook 7.
Resistance wire 1 uses siderochrome aluminum or nickel chromium triangle matter heating alloy body.
5 lower part of heat-insulated bell is made of the high temperature resistant rock wool of 50~300mm thickness or castable refractory.
When drying the tundish 10 of castable under moisture state, tundish 10 is suitable for reading to keep 10 with 5 lower surface of heat-insulated bell
The distance (being paved with refractory brick etc.) of~50mm, passes through temperature control system (thermometric galvanic couple 6, temperature feedback control system
8 and power-supply controller of electric 9) remain in 10 cavity of tundish that temperature is 80~300 DEG C so that the moisture volatilized when heating is timely
Naturally it escapes.
When toasting the tundish 10 of castable under drying regime, tundish 10 is suitable for reading to keep 0 with 5 lower surface of heat-insulated bell~
The distance of 10mm makes to form relatively closed space in tundish 10, the efficiency of heating surface is improved, in being kept by temperature control system
Between to wrap in 10 cavitys temperature be 300~1200 DEG C.
Embodiment 1
A kind of long-life resistance roaster, including resistance wire 1, interior boiler tube 2, supporting rod 3, fixed end 4, heat-insulated bell
5, thermometric galvanic couple 6, hook 7, temperature feedback control system 8, power-supply controller of electric 9, refractory mortar strip of paper used for sealing 11, layers of insulating fabric 12.
2 bottom of interior boiler tube is connected and fixed end 4 by supporting rod 3, and top is fixed on heat-insulated bell 5,2 external rings of interior boiler tube
Around resistance wire 1, resistance wire 1 is embedded in the groove on Inner boiler tubes 2, and 1 external tapping of resistance wire connects power-supply controller of electric 9, thermometric galvanic couple 6
It is connect with temperature feedback control system 8 and power-supply controller of electric 9, refractory mortar strip of paper used for sealing 11 is pasted on 1 surface of resistance wire, heat-insulated fibre
Dimension layer 12 is filled at 2 internal voids of interior boiler tube.
Using tundish as furnace body when roaster uses, roaster is inserted perpendicularly into tundish 10, is surveyed by thermometric galvanic couple 6
Amount temperature simultaneously controls 9 magnitude of current of power-supply controller of electric to realize the accurate temperature controlling of roaster by temperature feedback control system 8.Pass through
Roaster can be lifted the tundish 10 that comes in and goes out by hook 7.
Groove is U-shaped, depth 8mm, 1 a diameter of 5mm of resistance wire.1 surface longitudinal of resistance wire is by 4 refractory mortar strip of paper used for sealings
11 are packaged.Can there is 2 core of boiler tube using 1 a diameter of 25mm heat resisting steel material solid bar as supporting rod 3 in roaster
Effect interior 2 sinkage of boiler tube when preventing usage time longer.
2 central part of boiler tube is filled with alumina silicate fibre in roaster, and the intensity of resistance wire under the conditions of baking temperature can be improved
With embrittlement ability, extend resistance furnace service life.
When drying the tundish 10 of castable under moisture state, tundish 10 is suitable for reading to be kept with 5 lower surface of heat-insulated bell
The distance of 15mm remains in 10 cavity of tundish that temperature is 160 DEG C by temperature control system, makes to volatilize when heating
Moisture escapes naturally in time.
When toasting the tundish 10 of castable under drying regime, tundish 10 is suitable for reading to be kept with 5 lower surface of heat-insulated bell≤
The distance of 5mm makes to form relatively closed space in tundish 10, the efficiency of heating surface is improved, in being kept by temperature control system
Between in packet cavity temperature be 1080 DEG C.
Claims (4)
1. a kind of long-life resistance roaster, including interior boiler tube, resistance wire, heat-insulated bell；Interior boiler tube is set in tundish, interior
The fixed seat of boiler tube upper end is fixedly connected with heat-insulated bell, and heat-insulated bell is arranged in the upper end of tundish, is wound on interior boiler tube
There is resistance wire；It is characterized in that, being equipped with groove on the excircle of the interior boiler tube, it is wound in the resistance wire of interior outer surface of furnace tube
It is embedded in groove；In the outer surface of resistance wire several refractory mortar strip of paper used for sealings are axially pasted with along interior boiler tube；In interior boiler tube core
Portion is provided with supporting rod, and the upper end of the supporting rod is fixedly connected by nut with the fixed seat of interior boiler tube upper end, and lower end passes through
Fixed end is fixed on the bottom of interior boiler tube by nut；It is filled with layers of insulating fabric in the hollow position of the interior boiler tube.
2. a kind of long-life resistance roaster according to claim 1, which is characterized in that the groove be it is U-shaped, depth >=
1.3 times of resistance wire diameters.
3. a kind of long-life resistance roaster according to claim 1, which is characterized in that the supporting rod is 1~2 straight
Diameter is the heat resisting steel material solid bar of 20~50mm.
4. a kind of long-life resistance roaster according to claim 1, which is characterized in that the material of the layers of insulating fabric
For heat-resisting rock wool or alumina silicate fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714742.6U CN207655906U (en) | 2017-12-11 | 2017-12-11 | A kind of long-life resistance roaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714742.6U CN207655906U (en) | 2017-12-11 | 2017-12-11 | A kind of long-life resistance roaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207655906U true CN207655906U (en) | 2018-07-27 |
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ID=62940918
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721714742.6U Active CN207655906U (en) | 2017-12-11 | 2017-12-11 | A kind of long-life resistance roaster |
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| CN (1) | CN207655906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276068A (en) * | 2020-10-27 | 2021-01-29 | 宜昌船舶柴油机有限公司 | Electric heating baking device for refractory cement pouring ladle and manufacturing method |
-
2017
- 2017-12-11 CN CN201721714742.6U patent/CN207655906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276068A (en) * | 2020-10-27 | 2021-01-29 | 宜昌船舶柴油机有限公司 | Electric heating baking device for refractory cement pouring ladle and manufacturing method |
| CN112276068B (en) * | 2020-10-27 | 2022-02-18 | 宜昌船舶柴油机有限公司 | Electric heating baking device for refractory cement pouring ladle and manufacturing method |
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