CN105716382A - Brushless resistance heating steel strip belt dryer - Google Patents
Brushless resistance heating steel strip belt dryer Download PDFInfo
- Publication number
- CN105716382A CN105716382A CN201610233485.8A CN201610233485A CN105716382A CN 105716382 A CN105716382 A CN 105716382A CN 201610233485 A CN201610233485 A CN 201610233485A CN 105716382 A CN105716382 A CN 105716382A
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- China
- Prior art keywords
- steel band
- steel strip
- crossing wheel
- coil
- wire
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Sustainable Development (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a brushless resistance heating steel strip dryer, which comprises a frame; the frame is provided with a coil, a steel strip winding mechanism and a frequency converter; a steel strip is wound on the steel strip winding mechanism; the steel strip also penetrates through the coil, and is contactless with the coil; the coil is connected with the frequency converter; alternating current is input into the coil by the frequency converter; and the frequency converter is connected with a controller. According to the brushless resistance heating steel strip dryer provided by the invention, the steel strip is heated by adopting unique brushless resistance heating, so that the steel strip dryer does not need to be preheated in advance, can be started at any time when a user needs to use, and is low in energy consumption and high in utilization rate of equipment; running velocity of the steel strip is detected by adopting a non-contacting velocity sensor; closed-loop control is performed according to a mathematical model; heating velocity and the running velocity of the steel strip are matched, so that the steel strip can be enabled to be dried thoroughly; the steel strip dryer is small in size, and simple and convenient to install; and the steel strip dryer has a separate control system, is also capable of executing online running with front process equipment and rear process equipment, and is simple to operate and use.
Description
Technical field
The invention belongs to steel band heating, drying technical field, be specifically related to the steel band dehydrator of a kind of brushless resistance heating.
Background technology
In flux-cored wire production process, there are oil and a lot of impurity in the surface of raw material steel band, and for ensureing end product quality, steel band must clean up and could use, and what and then face after cleaning steel is exactly dry problem.The core that steel band is dried is that steel band self to be heated to uniform temperature, the moisture on surface is meeting rapid evaporation, otherwise surface can not be dried, therefore baking operation just require to accomplish steel band heating quickly, uniform and complete, energy-conservation, and steel band itself can not be adversely affected.Traditional furnace drying method is to adopt common electric heating tube to dry, and air is first heated by electric heating tube, and the conduction of heat of recycling air heats steel band, and heat conduction efficiency is very low and drying rate slow, and heat is all lost in air and causes waste greatly.Additionally, this drying mode can only control the air themperature inside drying baker, along with the difference of steel band speed, steel band self-temperature arise that large change (when steel band speed is relatively low, steel band residence time in drying baker longer, cause temperature of steel strips higher；Can cause again when steel band speed is higher that temperature of steel strips is low, dry insufficient phenomenon), result is unstable product quality, and floor space is bigger.
Summary of the invention
The furnace drying method heat conduction efficiency that the technical problem to be solved in the present invention is traditional is very low and drying rate is slow, heat is all lost in air and causes waste greatly, and the change of steel band speed can affect the drying temperature of steel band, product quality impact is bigger, for solving the problems referred to above, the present invention provides the steel band dehydrator that a kind of brushless resistance heats.
It is an object of the invention to realize in the following manner:
The steel band dehydrator of a kind of brushless resistance heating, including frame, frame is provided with coil, steel strip winding mechanism and converter, and steel strip winding is in steel strip winding mechanism, and steel band also extends through coil, and contactless with coil；Coil is connected with converter, and converter inputs alternating current in coil, and converter is connected with controller.
Described steel strip winding mechanism includes wire-crossing wheel and lower wire-crossing wheel, upper wire-crossing wheel and lower wire-crossing wheel can rotate freely, upper wire-crossing wheel is provided with two grooves, lower wire-crossing wheel is provided with a groove, steel band first walks around a groove on wire-crossing wheel, further around the groove crossed on lower wire-crossing wheel, another groove eventually passed on wire-crossing wheel lays out.
Being provided with thermocouple in described frame, the temperature probe of thermocouple and steel strip surface noncontact, the transmission ends of thermocouple is connected with controller.
Being additionally provided with velocity sensor in described frame, velocity sensor is connected with controller, and steel band, through testing the speed wire-crossing wheel, the wire-crossing wheel that tests the speed is provided with code-disc, and velocity sensor and code-disc are noncontact sensing.
Velocity sensor sensing code-disc obtains pulse signal, steel band pulse signal is fed back to controller by velocity sensor, pulse signal is converted into steel band linear velocity by controller, temperature and steel band linear velocity that controller detects according to thermocouple accurately control converter output and add thermocurrent so that steel band can keep heating-up temperature constant under different linear velocities.
Relative to prior art, the present invention provides a kind of steel band by faradic current, produces heat, make the moisture that steel band self is increased to uniform temperature rear surface evaporate when utilizing steel band self-resistance by electric current, thus reaching the purpose dried.Steel band surrounds on upper wire-crossing wheel and lower wire-crossing wheel and forms a loop, and through a hot-wire coil, produces faradic current, owing to steel band self resistance produces Joule heat when by electric current, make temperature of steel strips raise, and is finally reached the purpose drying steel band.Use converter to provide power supply, improve coil working frequency, make magnetic efficiency be greatly improved, only need only small energy consumption just can obtain drying effect well.Detection travel line speed, is accurately controlled to add thermocurrent, and is fed back by thermocouple, it is achieved closed loop control, it is possible to keep the temperature constant of steel band under any speed, not only ensure drying effect but also be unlikely to make steel band overheated by controller in real time.
Beneficial effects of the present invention:
1. equipment adopts unique brushless resistance heating that steel band is heated, it is not necessary to preheating in advance, with opening, and energy consumption is low, utilization rate of equipment and installations is high.
2. energy-saving effect is obvious: induction coil mode of heating reduces energy consumption 80% compared with the mode of common electric heater for heating.
3. equipment volume is little, it is simple and convenient to install；Equipment has independent control system, it is possible to operation online with front and back processing apparatus, operates with simple.
4. adopting contactless tachogenerator detection steel belt operating speed, carry out closed loop control according to mathematical model, the heating of steel band and the speed of service match, it is ensured that steel band can thoroughly be dried.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of the present invention.
Fig. 3 is the lower wire-crossing wheel schematic diagram of the present invention.
Wherein, 1 is coil；2 is upper wire-crossing wheel；3 is lower wire-crossing wheel；4 is converter；5 is steel band；6 is frame；7 is thermocouple；8 is code-disc；9 is velocity sensor.
Detailed description of the invention
As illustrated in the accompanying drawings from 1 to 3, the steel band dehydrator of a kind of brushless resistance heating, including frame 6, frame 6 is provided with coil 1, steel strip winding mechanism and converter 4, steel band 5 is wrapped in steel strip winding mechanism, and steel band 5 also extends through coil 1, and contactless with coil 1；Coil 1 is connected with converter 4, and converter 4 inputs alternating current in coil 1, and converter 4 is connected with controller.
Described steel strip winding mechanism includes wire-crossing wheel 2 and lower wire-crossing wheel 3, upper wire-crossing wheel 2 and lower wire-crossing wheel 3 can rotate freely, upper wire-crossing wheel 2 is provided with two grooves, lower wire-crossing wheel 3 is provided with a groove, steel band 5 first walks around a groove on wire-crossing wheel 2, further around the groove crossed on lower wire-crossing wheel 3, another groove eventually passed on wire-crossing wheel 2 lays out.
Being provided with thermocouple 7, the temperature probe of thermocouple 7 and steel band 5 surface noncontact in described frame 6, the transmission ends of thermocouple 7 is connected with controller.
Being additionally provided with velocity sensor 9 in described frame 6, velocity sensor 9 is connected with controller, and steel band 5, through testing the speed wire-crossing wheel, the wire-crossing wheel that tests the speed is provided with code-disc 8, and velocity sensor 9 senses for noncontact with code-disc 8.
Steel band linear velocity pulse information is fed back to controller by velocity sensor 9, and temperature and steel band linear velocity that controller detects according to thermocouple 7 accurately control converter 4 output and add thermocurrent so that steel band 5 can keep heating-up temperature constant under different linear velocities.
The frame 6 of described steel band dehydrator is provided with shutter, for vent water vapor.
The work process of the present invention is as follows: during work, and converter 4, to input AC electric current in coil 1, produces alternating magnetic field, and the steel band 5 through coil 1 is also a coil, produces faradic current in steel band 5, and steel band 5 produces Joule heat under the effect of self-resistance.There is provided power supply to coil 1 with converter 4, improve the operating frequency of coil 1, make magnetic efficiency be greatly improved, only need only small energy consumption just can obtain drying effect well.Steel band 5 is through testing the speed wire-crossing wheel, code-disc 8 is arranged on and tests the speed on wire-crossing wheel, sensor 9 is fixed in frame and code-disc 8 sensing connects, the pulse signal of code-disc 8 can be detected, the pulse signal detected is fed back to controller by sensor 9, temperature that controller detects according to thermocouple 7 and the speed that steel band runs accurately control to add thermocurrent, it is possible to the heating-up temperature keeping steel band under any speed is constant, not only ensures drying effect but also be unlikely to make steel band overheated.
Relative to prior art, the present invention provides a kind of steel band by faradic current, produces heat, make the moisture that steel band self is increased to uniform temperature rear surface evaporate when utilizing steel band self-resistance by electric current, thus reaching the purpose dried.Steel band surrounds on upper wire-crossing wheel and lower wire-crossing wheel and forms a loop, and through a hot-wire coil, produces faradic current, owing to steel band self resistance produces Joule heat when by electric current, make temperature of steel strips raise, and is finally reached the purpose drying steel band.Use converter to provide power supply, improve coil working frequency, make magnetic efficiency be greatly improved, only need only small energy consumption just can obtain drying effect well.Detection travel line speed, is accurately controlled to add thermocurrent, and is fed back by thermocouple, it is achieved closed loop control, it is possible to keep the temperature constant of steel band under any speed, not only ensure drying effect but also be unlikely to make steel band overheated by controller in real time.
Beneficial effects of the present invention:
1. equipment adopts unique brushless resistance heating that steel band is heated, it is not necessary to preheating in advance, with opening, and energy consumption is low, utilization rate of equipment and installations is high.
2. energy-saving effect is obvious: induction coil mode of heating reduces energy consumption 80% compared with the mode of common electric heater for heating.
3. equipment volume is little, it is simple and convenient to install；Equipment has independent control system, it is possible to operation online with front and back processing apparatus, operates with simple.
4. adopting contactless tachogenerator detection steel belt operating speed, carry out closed loop control according to mathematical model, the heating of steel band and the speed of service match, it is ensured that steel band can thoroughly be dried.
Above-described is only the preferred embodiment of the present invention, it is noted that for a person skilled in the art, without departing under general idea premise of the present invention, it is also possible to making some changes and improvements, these also should be considered as protection scope of the present invention.
Claims (5)
1. the steel band dehydrator of a brushless resistance heating, it is characterized in that: include frame (6), frame (6) is provided with coil (1), steel strip winding mechanism and converter (4), steel band (5) is wrapped in steel strip winding mechanism, steel band (5) also extends through coil (1), and contactless with coil (1)；Coil (1) is connected with converter (4), and converter (4) is input alternating current in coil (1), and converter (4) is connected with controller.
2. the steel band dehydrator of brushless resistance according to claim 1 heating, it is characterized in that: described steel strip winding mechanism includes wire-crossing wheel (2) and lower wire-crossing wheel (3), upper wire-crossing wheel (2) and lower wire-crossing wheel (3) can rotate freely, upper wire-crossing wheel (2) is provided with two grooves, lower wire-crossing wheel (3) is provided with a groove, steel band (5) first walks around a groove on wire-crossing wheel (2), further around the groove crossed on lower wire-crossing wheel (3), another groove eventually passed on wire-crossing wheel (2) lays out.
3. the steel band dehydrator of brushless resistance according to claim 1 heating, it is characterized in that: described frame (6) is provided with thermocouple (7), the temperature probe of thermocouple (7) and steel band (5) surface noncontact, the transmission ends of thermocouple (7) is connected with controller.
4. the steel band dehydrator of brushless resistance according to claim 1 heating, it is characterized in that: described frame (6) is additionally provided with velocity sensor (9), velocity sensor (9) is connected with controller, steel band (5) is through testing the speed wire-crossing wheel, testing the speed and be provided with code-disc (8) on wire-crossing wheel, velocity sensor (9) and code-disc (8) are noncontact sensing.
5. the steel band dehydrator of the brushless resistance heating according to claim 3 or 4, it is characterized in that: steel band linear velocity pulse information is fed back to controller by velocity sensor (9), temperature and steel band linear velocity that controller detects according to thermocouple (7) accurately control converter (4) output and add thermocurrent so that steel band (5) can keep heating-up temperature constant under different linear velocities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233485.8A CN105716382A (en) | 2016-04-15 | 2016-04-15 | Brushless resistance heating steel strip belt dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233485.8A CN105716382A (en) | 2016-04-15 | 2016-04-15 | Brushless resistance heating steel strip belt dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105716382A true CN105716382A (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610233485.8A Pending CN105716382A (en) | 2016-04-15 | 2016-04-15 | Brushless resistance heating steel strip belt dryer |
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| Country | Link |
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| CN (1) | CN105716382A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949727A (en) * | 2017-04-14 | 2017-07-14 | 河南省西工机电设备有限公司 | A kind of dryer of high speed variable-frequency heating metal wire rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07148454A (en) * | 1993-11-29 | 1995-06-13 | Kawasaki Steel Corp | Baking furnace of metal strip coating line |
| CN1734378A (en) * | 2004-08-13 | 2006-02-15 | 中外炉工业株式会社 | Material temperature system for continuous strip material treatment production line |
| CN1778144A (en) * | 2003-03-07 | 2006-05-24 | 塞莱斯公司 | Device for heating by induction of metal strip |
| CN203605661U (en) * | 2013-11-08 | 2014-05-21 | 江阴市威尔巨拉科技有限公司 | Online solid ultrasonic frequency induction steel wire drying device |
| CN205580097U (en) * | 2016-04-15 | 2016-09-14 | 河南省西工机电设备有限公司 | Brushless resistance heating's steel band drying -machine |
-
2016
- 2016-04-15 CN CN201610233485.8A patent/CN105716382A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07148454A (en) * | 1993-11-29 | 1995-06-13 | Kawasaki Steel Corp | Baking furnace of metal strip coating line |
| CN1778144A (en) * | 2003-03-07 | 2006-05-24 | 塞莱斯公司 | Device for heating by induction of metal strip |
| CN1734378A (en) * | 2004-08-13 | 2006-02-15 | 中外炉工业株式会社 | Material temperature system for continuous strip material treatment production line |
| CN203605661U (en) * | 2013-11-08 | 2014-05-21 | 江阴市威尔巨拉科技有限公司 | Online solid ultrasonic frequency induction steel wire drying device |
| CN205580097U (en) * | 2016-04-15 | 2016-09-14 | 河南省西工机电设备有限公司 | Brushless resistance heating's steel band drying -machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949727A (en) * | 2017-04-14 | 2017-07-14 | 河南省西工机电设备有限公司 | A kind of dryer of high speed variable-frequency heating metal wire rod |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |
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| RJ01 | Rejection of invention patent application after publication |