CN201821518U - Heating device with molten metal electrodes for steel strips by means of direct energizing - Google Patents
Heating device with molten metal electrodes for steel strips by means of direct energizing Download PDFInfo
- Publication number
- CN201821518U CN201821518U CN 201020528683 CN201020528683U CN201821518U CN 201821518 U CN201821518 U CN 201821518U CN 201020528683 CN201020528683 CN 201020528683 CN 201020528683 U CN201020528683 U CN 201020528683U CN 201821518 U CN201821518 U CN 201821518U
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- China
- Prior art keywords
- molten metal
- steel band
- heating device
- electric heating
- direct electric
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- Expired - Fee Related
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Abstract
The utility model provides a heating device with molten metal electrodes for steel strips by means of direct energizing, which comprises a heat-insulation metal tank and a steel strip penetrating through the same. Two motel metal tanks corresponding to the steel strip are arranged in the heat-insulation metal tank, molten metal layers corresponding to the steel strip are arranged in the molten metal tanks, and the two molten metal tanks are respectively connected with transformer secondary electrodes. The high-temperature molten metal layers well contact with the steel strip, the electric conductivity is fine, thereby no electric spark is generated among the steel strip and the molten metal layers, further, the steel strip is in soft contact with the molten metal layers, the steel strip cannot be strained, and the heating device is simple in structure and convenient in manufacture, while the heat efficiency can reach 90-95%.
Description
Technical field
The utility model relates to steel band heat treatment field, is specifically related to a kind of direct electric heating device of steel band of molten metal electrode.
Background technology
Steel band is when heat-treating, all to heat steel band, generally all heat with the resistance box stove, this kind device is muffle tube to be heated to about 900 degree by thermal radiation with the energising resistance wire earlier, by thermal radiation the steel band in the muffle tube is heated to the 840-870 degree again, make the steel band complete austenitizing, this equipment volume is huge, and area of dissipation is big, and thermal loss is big, add the heat transfer path complexity again, its heat efficiency has only about 35-45%.Also having a kind of steel band firing equipment is to adopt high-frequency induction heating, its heat efficiency can reach 50-70%, but its equipment is complicated, especially the design difficulty of its induction coil is big, the induction coil that designs a homogeneous heating is very difficult, and main is that steel band just loses magnetism after temperature surpasses Curie point, it is very slow that firing rate just becomes, and this has just limited promoting the use of of it.The someone proposes the steel band heating of directly switching on very early, because this heating means do not need heat transmission, directly electric energy is changed into the heat energy of steel band, thereby its heat efficiency can be very high.Is the design of electrode with direct energising to the design difficulty that steel band heats, if use board-like electrode, then because steel band is in constant motion, relatively moves between electrode and steel band, is easy to generate electric spark, can damage steel band; If adopt welding roll, then need the fax of electricity consumption brush handle to give welding roll, this just makes that electrode structure can be very complicated, manufacture difficulty is big.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of direct electric heating device of steel band of molten metal electrode, and is simple in structure, easily manufactured, can not damage heat efficiency height to steel band.
For solving above-mentioned existing technical problem, the utility model adopts following scheme: the direct electric heating device of a kind of steel band of molten metal electrode, comprise the insulation metal box, run through the steel band that is incubated metal box, be provided with two the molten metal casees corresponding in the described insulation metal box with steel band, be provided with the metal pat corresponding with steel band in the described molten metal case, described two molten metal casees link to each other with the transformer secondary output electrode respectively.
As preferably, be provided with the electrical bar corresponding in the described molten metal case with metal pat.Be used for the heating of metal liquid layer, make metal pat keep liquid.
As preferably, be provided with the thermocouple that contacts with metal pat in the described insulation metal box.This thermocouple is connected with outside attemperating unit, is used for controlling automatically the temperature of metal pat, makes the temperature constant of metal pat.
As preferably, the bottom of described molten metal case is provided with the copper coin that is connected with the transformer secondary output electrode.By it electric current is imported in the molten metal case.
As preferably, be equipped with slewing rollers corresponding above the both sides of described molten metal case with steel band, the central authorities of described molten metal case are provided with the pressure roller corresponding with steel band, and described insulation metal box is provided with compressed air cylinder, and described pressure roller is connected with compressed air cylinder.Compressed air cylinder control pressure roller moves up and down, and is used for steel band is pressed in the metal pat, thereby has guaranteed that steel band contacts conduction with metal pat.
As preferably, the top of the slewing rollers at described rear portion is provided with corresponding with the steel band molten metal roller of scraping.Guaranteed the cleaning of steel band.
As preferably, described insulation metal box is provided with infrared thermometer.Be used for measuring temperature of steel strips, infrared thermometer is connected with the attemperating unit of outside, can guarantee the temperature of steel band is controlled at steel band austenitizing temperature scope automatically.
As preferably, described insulation metal box is provided with protection gas and feeds mouthful.Prevent steel band and metal pat oxidation.
As preferably, the afterbody of described insulation metal box is provided with the equal incubator corresponding with steel band.Make the temperature of steel strips after the heating more even.
Beneficial effect:
The utility model adopts technique scheme that a kind of direct electric heating device of steel band of molten metal electrode is provided, the metal pat of high temperature contacts with steel band well, electric conductivity is good, therefore can not produce electric spark between them, because steel band is soft the contact with metal pat, just can not pull steel band, this apparatus structure is simple, easily manufactured, the heat efficiency can reach 90-95%.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the direct electric heating device of a kind of steel band of molten metal electrode, comprise insulation metal box 2, run through the steel band 1 that is incubated metal box 2, be provided with two the molten metal casees 3 corresponding in the described insulation metal box 2 with steel band 1, be provided with the metal pat 4 corresponding with steel band 1 in the described molten metal case 3, described two molten metal casees 3 link to each other with transformer secondary output electrode 8 respectively.Be provided with the electrical bar 5 corresponding in the described molten metal case 3 with metal pat 4.Be provided with the thermocouple 6 that contacts with metal pat 4 in the described insulation metal box 2.The bottom of described molten metal case 3 is provided with the copper coin 7 that is connected with transformer secondary output electrode 8.Top, the both sides of described molten metal case 3 is equipped with slewing rollers 9 corresponding with steel band 1, the central authorities of described molten metal case 3 are provided with the pressure roller 10 corresponding with steel band 1, described insulation metal box 2 is provided with compressed air cylinder 15, and described pressure roller 10 is connected with compressed air cylinder 15.The top of the slewing rollers 9 at described rear portion is provided with corresponding with the steel band 1 molten metal roller 11 of scraping.Described insulation metal box 2 is provided with infrared thermometer 12.Described insulation metal box 2 is provided with protection gas and feeds mouth 13.The afterbody of described insulation metal box 2 is provided with the equal incubator 14 corresponding with steel band 1.Described metal pat 4 adopts plumbous liquation layer, and the material of molten metal case 3 adopts stainless steel.
During real work; electrical bar 5 energising heating in the molten metal case 3; make the lead in the molten metal case 3 be fused into metal pat 4; its temperature available heat galvanic couple 6 is measured; and by attemperating unit make the temperature of metal pat 4 remain on 400 the degree about; steel band 1 enters in the metal pat 4 by two slewing rollers 9 and pressure roller 10; make steel band 1 closely contact with metal pat 4; the copper coin 7 of the bottom of molten metal case 3 links to each other with the transformer secondary output electrode 8 of low-tension supply; the big electric current of low pressure just can be by 4 layers of steel band 1 that arrives between two molten metal casees 3 of the molten metal in two molten metal casees 3 like this; steel band 1 is heated to rapidly about 900 degree; infrared thermometer 12 can be controlled at the temperature of steel band 1 steel band austenitizing temperature scope automatically with attemperating unit; add equal incubator 14 in the exit of steel band 1; make the steel band 1 after the heating more uniform temperature some; scrape molten metal roller 11 and be used for removing plumbous liquid on the steel band 1; for making steel band 1 and the metal pat 4 can oxidation, feed in mouthfuls 13 at protection gas and to feed protection gas nitrogen.
Claims (9)
1. the direct electric heating device of the steel band of a molten metal electrode, comprise insulation metal box (2), run through the steel band (1) that is incubated metal box (2), it is characterized in that: be provided with two the molten metal casees (3) corresponding in the described insulation metal box (2) with steel band (1), be provided with the metal pat (4) corresponding with steel band (1) in the described molten metal case (3), described two molten metal casees (3) link to each other with transformer secondary output electrode (8) respectively.
2. the direct electric heating device of the steel band of a kind of molten metal electrode according to claim 1 is characterized in that: be provided with the electrical bar (5) corresponding with metal pat (4) in the described molten metal case (3).
3. the direct electric heating device of the steel band of a kind of molten metal electrode according to claim 2 is characterized in that: be provided with the thermocouple (6) that contacts with metal pat (4) in the described insulation metal box (2).
4. the direct electric heating device of the steel band of a kind of molten metal electrode according to claim 1 is characterized in that: the bottom of described molten metal case (3) is provided with the copper coin (7) that is connected with transformer secondary output electrode (8).
5. the direct electric heating device of the steel band of a kind of molten metal electrode according to claim 1, it is characterized in that: the top, both sides of described molten metal case (3) is equipped with slewing rollers (9) corresponding with steel band (1), the central authorities of described molten metal case (3) are provided with the pressure roller (10) corresponding with steel band (1), described insulation metal box (2) is provided with compressed air cylinder (15), and described pressure roller (10) is connected with compressed air cylinder (15).
6. the direct electric heating device of the steel band of a kind of molten metal electrode according to claim 1 is characterized in that: the top of the slewing rollers at described rear portion (9) is provided with corresponding with steel band (1) the molten metal roller (11) of scraping.
7. the direct electric heating device of the steel band of a kind of molten metal electrode according to claim 1 is characterized in that: described insulation metal box (2) is provided with infrared thermometer (12).
8. the direct electric heating device of the steel band of a kind of molten metal electrode according to claim 1 is characterized in that: described insulation metal box (2) is provided with protection gas and feeds mouthful (13).
9. the direct electric heating device of the steel band of a kind of molten metal electrode according to claim 1 is characterized in that: the afterbody of described insulation metal box (2) is provided with the equal incubator (14) corresponding with steel band (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020528683 CN201821518U (en) | 2010-09-10 | 2010-09-10 | Heating device with molten metal electrodes for steel strips by means of direct energizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020528683 CN201821518U (en) | 2010-09-10 | 2010-09-10 | Heating device with molten metal electrodes for steel strips by means of direct energizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201821518U true CN201821518U (en) | 2011-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020528683 Expired - Fee Related CN201821518U (en) | 2010-09-10 | 2010-09-10 | Heating device with molten metal electrodes for steel strips by means of direct energizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201821518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980581A (en) * | 2010-09-10 | 2011-02-23 | 浙江佰耐钢带有限公司 | Device for directly electrifying and heating steel belt by using molten metal electrode |
-
2010
- 2010-09-10 CN CN 201020528683 patent/CN201821518U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980581A (en) * | 2010-09-10 | 2011-02-23 | 浙江佰耐钢带有限公司 | Device for directly electrifying and heating steel belt by using molten metal electrode |
| CN101980581B (en) * | 2010-09-10 | 2012-11-28 | 浙江佰耐钢带有限公司 | Device for directly electrifying and heating steel belt by using molten metal electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20130910 |