CN201834951U - Steel belt direct-electrification continuous heating device of pressure plate electrode - Google Patents
Steel belt direct-electrification continuous heating device of pressure plate electrode Download PDFInfo
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- CN201834951U CN201834951U CN2010205713286U CN201020571328U CN201834951U CN 201834951 U CN201834951 U CN 201834951U CN 2010205713286 U CN2010205713286 U CN 2010205713286U CN 201020571328 U CN201020571328 U CN 201020571328U CN 201834951 U CN201834951 U CN 201834951U
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- steel band
- pressing plate
- continuous heating
- plate electrode
- heating unit
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Abstract
The utility model provides a steel belt direct-electrification continuous heating device of a pressure plate electrode, which comprises a drum wheel, a winding wheel and a steel belt which is arranged between the drum wheel and the winding wheel, wherein two pressure plate electrification devices corresponding to the steel belt are arranged between the drum wheel and the winding wheel, a heat preservation box corresponding to the steel belt is arranged between the two pressure plate electrification devices, and the two electrification devices are connected with a secondary electrode of a transformer through a copper bar. The steel belt direct-electrification continuous heating device has a simple structure, is convenient to use, has uniform heating temperature, and is free from damaging the steel belt. The heat efficiency can reach 90 to 95 percent.
Description
Technical field
The utility model relates to steel band thermal treatment field, is specifically related to a kind of continuous heating unit of the direct energising of steel band of pressing plate electrode.
Background technology
Energy-saving and emission-reduction are long-range strategy policies of national economic development, concerning an enterprise, energy-conservationly can reduce product cost, thereby can improve competitiveness of product.Steel band thermal treatment will consume a large amount of heat energy, energy-conservationly just seems even more important.Steel band is when heat-treating, all to heat steel band, generally all heat with the resistance box stove, this device is muffle tube and refractory brick on every side thereof to be heated to about 900 degree by thermal radiation with the high temperature resistance silk of switching on earlier, by thermal radiation the steel band in the muffle tube is heated to the 840-870 degree again, makes the steel band complete austenitizing.This equipment volume is huge, and area of dissipation is big, and calorific loss is big, adds the heat transfer path complexity again, and its thermo-efficiency has only about 35-45%.Another shortcoming of this device is that its thermal inertia is very big, and the change of temperature is very difficult, per hour can only change tens degree. therefore,, not only cause the inaction waste of electric energy but also make that operation is very inconvenient even stove temporarily need not also must allow stove often open.
Also having a kind of steel band heating installation is to adopt high-frequency induction heating, and its thermo-efficiency can reach 50-70%, but its equipment is complicated, and especially the design difficulty of its ruhmkorff coil is big, and the ruhmkorff coil that design a steel band homogeneous heating is very difficult.Main is that steel band just loses magnetism after temperature surpasses Curie temperature, and it is very slow that rate of heating just becomes, and this has just limited promoting the use of of it.
Very early the someone propose to conductor directly switch on the heating imagination, this heating means do not need heat passage, can directly change electric energy into the heat energy of steel band, thereby its thermo-efficiency are very high; The thermal inertia of this device is very little, and stove can use with the opening, and can not cause the inaction loss of electric energy; More, can reach the per second hundreds of to several thousand degree because directly the rate of heating of energising heating is very fast.Rate of heating is fast more, and the austenite matrix particle of formation is just more little, makes that the martensite bar body that forms subsequently is also very little, can increase intensity and toughness after the steel band thermal treatment like this, thereby improve the steel band thermal treatment quality.
Though directly ohmic heating technology has this many advantages, is not commonly used for a long time.Particularly the continuous heating of steel band never has this technology of fine application.Its reason is that the design difficulty of directly energising heating counter electrode is very big, the especially continuous heating of steel band, and the design of electrode is more difficult.The electric current of heating is very big because steel band is directly switched on, and steel band is in constant motion, and makes to relatively move between steel band and electrode, therefore is easy to produce electrical spark, and steel band is damaged.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of continuous heating unit of the direct energising of steel band of pressing plate electrode, and simple in structure, easy to use, Heating temperature is even, can not damage steel band, the thermo-efficiency height.
For solving above-mentioned existing technical problem, the utility model adopts following scheme: a kind of steel band of pressing plate electrode is the continuous heating unit of energising directly, comprise hai roll wheel, winding wheel, be located at the steel band between hai roll wheel and the winding wheel, be provided with between described hai roll wheel and the winding wheel two with the corresponding pressing plate of the steel band devices of switching on, be provided with the insulation can corresponding with steel band between described two pressing plates energising device, described two energising devices are connected with the transformer secondary output electrode by copper bar.
As preferably; described pressing plate energising device comprises insulcrete, is located at upper water box and lower header on the insulcrete; the bottom of described upper water box, the top of lower header are equipped with a pressing plate that is connected with copper bar, and the both sides that are positioned at steel band between described two pressing plates are equipped with a protecting sheet corresponding with steel band.All be connected with water in upper water box and lower header, pressing plate and protecting sheet are cooled off, casing is made with steel plate, and casing is provided with water-in and water outlet, and guide water board is housed in the casing, makes current cross casing, good cooling results along the path flow of spiraling.
As preferably, described insulcrete is provided with four root posts, the top of described four root posts is provided with the retaining plate of connection, be socketed with slide block on described four root posts, described slide block links to each other with upper water box, and upper water box can be moved up and down, and described retaining plate is provided with compressed air cylinder, it links to each other with upper water box, is used for making upper water box vertically to move up and down.
As preferably, described insulation can comprises shell, inner casing, is located at the insulating cotton layer between shell and the inner casing.High insulating effect.
As preferably, described protecting sheet adopts expanded graphite plate.Expanded graphite plate conducts electricity very well, and soft and flexible, frictional coefficient is very little, and can conduct electricity conducts heat can protect steel band again.
As preferably, described insulation can is provided with infra-red thermometer and protection gas inlet.Infra-red thermometer is used for measuring the temperature of steel band, and it is connected with automatic temperature regulation device, is used for controlling temperature of steel strips automatically at setting range.Feed mouth and be used for feeding protection gas, prevent the steel band oxidation.
Beneficial effect:
The utility model adopts technique scheme that a kind of continuous heating unit of the direct energising of steel band of pressing plate electrode is provided, and it is simple in structure, and is easy to use, and Heating temperature is even, can not damage steel band, and thermo-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, a kind of steel band of pressing plate electrode continuous heating unit of directly switching on, comprise hai roll wheel 1, winding wheel 2, be located at the steel band 3 between hai roll wheel 1 and the winding wheel 2, be provided with between described hai roll wheel 1 and the winding wheel 2 two with the corresponding pressing plate of steel band 3 device 4 of switching on, be provided with the insulation can 5 corresponding with steel band 3 between described two pressing plates energising device 4, described two energising devices 4 are connected with transformer secondary output electrode 7 by copper bar 6.Described pressing plate energising device 4 comprises insulcrete 41, is located at upper water box 42 and lower header 43 on the insulcrete 41; the top of the bottom of described upper water box 42, lower header 43 is equipped with a pressing plate 44 that is connected with copper bar 6, and the both sides that are positioned at steel band 3 between described two pressing plates 44 are equipped with a protecting sheet 45 corresponding with steel band 3.Described insulcrete 41 is provided with four root posts 46, the top of described four root posts 46 is provided with the retaining plate 47 of connection, be socketed with slide block 48 on described four root posts 46, described slide block 48 links to each other with upper water box 42, described retaining plate 47 is provided with compressed air cylinder 49, and described upper water box 42 links to each other with compressed air cylinder 49.Described insulation can 5 comprises shell 51, inner casing 52, is located at the insulating cotton layer 53 between shell 51 and the inner casing 52.Described protecting sheet 45 adopts expanded graphite plate.Described insulation can 5 is provided with infra-red thermometer 8 and protection gas inlet 9.Simple in structure, easy to use, Heating temperature is even, can not damage steel band, and thermo-efficiency can reach 90-95%.
The effect of upper water box 42 and lower header 43 is cooling pressing plates 44.Pressing plate 44 adopts copper sheet, with it electric current is imported steel band 3.Protecting sheet 45 adopts expanded graphite plates, conducts electricity very well, and soft and flexible, frictional coefficient is very little, not only has been used for conductive and heat-conductive but also be used for protecting steel band 3.The plastic plate that insulcrete 41 usefulness are thicker is done, and its effect is entire electrode and ground insulation.Insulation can 5 provides a sealed space for steel band 3, can oxidation so that feed the steel band 3 that makes heating behind the protection gas, and played the effect of insulation.The shell 51 of insulation can 5 can adopt ceramic tile, and inner casing 52 adopts stainless steel plate, is filled with insulating cotton layer 53, high insulating effect between shell 51 and the inner casing 52.This device provides power supply by a transformer.The big current low voltage magnetic of its transformer adopting voltage regulator/transformer, primary voltage is 380 volts, secondary voltage is the 9-30 volt.Be in series with a magnetic modulation coil on the iron core of magnetic voltage regulator/transformer, regulate direct current, can regulate the secondary voltage of output easily, thereby realize the automatic control of temperature of steel strips by it.
Claims (6)
1. the steel band of a pressing plate electrode continuous heating unit of directly switching on, comprise hai roll wheel (1), winding wheel (2), be located at the steel band (3) between hai roll wheel (1) and the winding wheel (2), it is characterized in that: be provided with between described hai roll wheel (1) and the winding wheel (2) two with the corresponding pressing plate of steel band (3) devices (4) of switching on, be provided with the insulation can (5) corresponding with steel band (3) between described two pressing plates energising devices (4), described two energising devices (4) are connected with transformer secondary output electrode (7) by copper bar (6).
2. the steel band of a kind of pressing plate electrode according to claim 1 continuous heating unit of directly switching on; it is characterized in that: described pressing plate energising device (4) comprises insulcrete (41), is located at upper water box (42) and lower header (43) on the insulcrete (41); the top of the bottom of described upper water box (42), lower header (43) is equipped with a pressing plate (44) that is connected with copper bar (6), and the both sides that are positioned at steel band (3) between described two pressing plates (44) are equipped with a protecting sheet (45) corresponding with steel band (3).
3. the steel band of a kind of pressing plate electrode according to claim 2 continuous heating unit of directly switching on, it is characterized in that: described insulcrete (41) is provided with four root posts (46), the top of described four root posts (46) is provided with the retaining plate (47) of connection, be socketed with slide block (48) on described four root posts (46), described slide block (48) links to each other with upper water box (42), described retaining plate (47) is provided with compressed air cylinder (49), and described upper water box (42) links to each other with compressed air cylinder (49).
4. the steel band of a kind of pressing plate electrode according to claim 1 continuous heating unit of directly switching on, it is characterized in that: described insulation can (5) comprises shell (51), inner casing (52), is located at the insulating cotton layer (53) between shell (51) and the inner casing (52).
5. the steel band of a kind of pressing plate electrode according to claim 2 continuous heating unit of directly switching on is characterized in that: described protecting sheet (45) adopts expanded graphite plate.
6. the steel band of a kind of pressing plate electrode according to claim 1 continuous heating unit of directly switching on is characterized in that: described insulation can (5) is provided with infra-red thermometer (8) and protection gas inlet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205713286U CN201834951U (en) | 2010-10-14 | 2010-10-14 | Steel belt direct-electrification continuous heating device of pressure plate electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205713286U CN201834951U (en) | 2010-10-14 | 2010-10-14 | Steel belt direct-electrification continuous heating device of pressure plate electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201834951U true CN201834951U (en) | 2011-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205713286U Expired - Fee Related CN201834951U (en) | 2010-10-14 | 2010-10-14 | Steel belt direct-electrification continuous heating device of pressure plate electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201834951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031360A (en) * | 2010-10-14 | 2011-04-27 | 浙江佰耐钢带有限公司 | Steel belt direct electrical continuous heater of pressure plate electrode |
-
2010
- 2010-10-14 CN CN2010205713286U patent/CN201834951U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031360A (en) * | 2010-10-14 | 2011-04-27 | 浙江佰耐钢带有限公司 | Steel belt direct electrical continuous heater of pressure plate electrode |
| CN102031360B (en) * | 2010-10-14 | 2012-08-08 | 浙江佰耐钢带有限公司 | Steel belt direct electrical continuous heater of pressure plate 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: 20110518 Termination date: 20131014 |