CN204455260U - Heating and heat-insulating device for aluminum-zinc-plated sink roller - Google Patents
Heating and heat-insulating device for aluminum-zinc-plated sink roller Download PDFInfo
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- CN204455260U CN204455260U CN201420845291.XU CN201420845291U CN204455260U CN 204455260 U CN204455260 U CN 204455260U CN 201420845291 U CN201420845291 U CN 201420845291U CN 204455260 U CN204455260 U CN 204455260U
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- heating
- temperature
- intelligent digital
- aluminum
- power
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 40
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 15
- 239000010703 silicon Substances 0.000 claims abstract description 15
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000007747 plating Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000004069 differentiation Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 10
- 229910052725 zinc Inorganic materials 0.000 description 9
- 239000011701 zinc Substances 0.000 description 9
- 238000005246 galvanizing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 238000005269 aluminizing Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to an aluminum-zinc plating sink roll heating heat preservation device, which comprises a heating furnace, a resistance band, thermocouples and a control system, wherein the control system comprises a silicon controlled power regulator and programmable intelligent digital display temperature controllers; the programmable intelligent digital display temperature controller is connected with the thermocouple to form a detection loop. Compared with the prior art, the beneficial effects of the utility model are that: 1) by adopting a PID (proportion integration differentiation) adjusting mode, the silicon controlled power regulator continuously outputs, the control precision is high, and the uniformity of the furnace temperature is good; 2) the temperature can be controlled according to a set temperature rise curve, and the heating power is automatically regulated by controlling the output of the silicon controlled rectifier power regulator; 3) the automatic power-off protection device has the automatic power-off protection function and the automatic alarm function when the control system is over-temperature, over-current and unbalanced in three-phase load, and ensures the safety and reliability of the system during live working.
Description
Technical field
The utility model relates to a kind of automatic control electrical heating device, particularly relates to a kind of aluminum-zinc alloy sinking roller heating and heat-insulating device.
Background technology
Galvanizing is that to enter zinc pot by stove nose zinc-plated after continuous annealing and cooling for band steel, and the sinking roller in zinc pot, stabilizing roller, control roller go out zinc pot, air knife blow away more than zinc liquid after through cool wind box cooling, form the uniform coating of one deck at belt steel surface.The unit relevant with steel continuous zinc coating has Continuous Hot Dip Galvanizing, continuous zinc/aluminium/aluminium zinc coating unit and continuous electroplating unit etc.; Certain enterprise, in order to adapt to the needs in market, transforms Continuous Hot Dip Galvanizing, makes it both can produce galvanized sheet, also can produce aluminium plating zinc plate.The difficult problem run in transformation process is exactly original sinking roller heating unit is be the design of galvanizing line sinking roller, maximum heating temperature is 400 degree, and zinc wire sinking roller requirement Heating temperature of aluminizing is at about 600 degree, because Heating temperature is inadequate, sinking roller is caused to enter after zinc pot because temperature is lower than the temperature of molten metal in pot, the bent modification of the easy wooden dipper of sinking roller, work-ing life has a greatly reduced quality, not only increase roll change number of times, increase production cost, and also can produce great impact to quality product.
Summary of the invention
The utility model provides a kind of aluminum-zinc alloy sinking roller heating and heat-insulating device, can improve aluminum-zinc alloy sinking roller Heating temperature, and achieve temperature automatic adjustment, has the advantage that homogeneous heating, temperature control are accurate, safe and reliable.
In order to achieve the above object, the utility model realizes by the following technical solutions:
A kind of aluminum-zinc alloy sinking roller heating and heat-insulating device, comprise process furnace, resistive band, thermopair and Controlling System, described Controlling System comprises power of controlled silicon setter and programmable, intelligent digital readout temperature controller, resistive band is evenly distributed on process furnace burner hearth both sides, thermopair is arranged in burner hearth, and programmable, intelligent digital readout temperature controller, power of controlled silicon setter and resistive band connect and compose heating successively and perform loop; Programmable, intelligent digital readout temperature controller and thermopair connect and compose measure loop.
Described resistive band is the star-like heating resistor band of three-phase symmetrical, and material is 0Cr25Al5.
Described programmable, intelligent digital readout temperature controller adopts PID to control.
Described Controlling System have furnace shell open auto-breaking and system over temperature, overcurrent, threephase load uneven time auto-alarm function.
Compared with prior art, the beneficial effects of the utility model are:
1) adopt PID regulative mode, power of controlled silicon setter exports continuously, and by Control for Kiln Temperature in perfect condition, control accuracy is high, and temperature uniformity is good;
2) programmable, intelligent digital readout temperature controller by setting heating curve temperature control, can be automatically adjusted to heating power by the output controlling power of controlled silicon setter;
3) have furnace shell open auto-breaking defencive function and Controlling System overtemperature, overcurrent, threephase load uneven time auto-alarm function, safe and reliable when ensureing system live line work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the A of Fig. 1 is to partial view.
Fig. 3 is the utility model Controlling System schematic circuit.
Fig. 4 is setting heating curve schematic diagram.
In figure: 1. process furnace 2. resistive band 3. power of controlled silicon setter 4. programmable, intelligent digital readout temperature controller 5. thermopair
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1-Fig. 2, it is structural representation of the present utility model, a kind of aluminum-zinc alloy sinking roller of the utility model heating and heat-insulating device, comprise process furnace 1, resistive band 2, thermopair 5 and Controlling System, described Controlling System comprises power of controlled silicon setter 3 and programmable, intelligent digital readout temperature controller 4, resistive band 2 is evenly distributed on process furnace 1 burner hearth both sides, and thermopair 5 is arranged in burner hearth, and programmable, intelligent digital readout temperature controller 4, power of controlled silicon setter 3 and resistive band 2 connect and compose heating successively and perform loop; Programmable, intelligent digital readout temperature controller 4 and thermopair 5 connect and compose measure loop.
Described resistive band 2 is the star-like heating resistor band of three-phase symmetrical, and material is 0Cr25Al5.
Described programmable, intelligent digital readout temperature controller 4 adopts PID to control.
Described Controlling System have furnace shell open auto-breaking and system over temperature, overcurrent, threephase load uneven time auto-alarm function.
The principle of work of a kind of aluminum-zinc alloy sinking roller of the utility model heating and heat-insulating device is: by the temperature of setting in programmable, intelligent digital readout temperature controller 4 and the actual temperature measured by thermopair 5 being contrasted, its deviation exports (4 ~ 20mA) current signal after PID regulates, the power stage of adjustment power of controlled silicon setter 3, reaches rapid heating and accurate heat insulation function.
Seeing Fig. 3, is the utility model Controlling System schematic circuit.In figure, L1, L2, L3 represent three phase lines of three-phase supply; V is voltmeter; Q1 represents switch; Q2, Q3 are air switch; F represents radiator fan; LM represents contactor+detection of electrical leakage unit; R is resistance; J1 is rly.; SB1, SB2 are limit switch.A kind of aluminum-zinc alloy sinking roller of the utility model heating and heat-insulating device, adopts the star-like heating resistor band 2 of three-phase symmetrical, passes into three-phase symmetrical power frequency supply, carry out continuous uniform adjustment by silicon controlled rectifier to power, according to heat Joule's law Q=I
2rt determines Heating temperature, then by thermal-radiating mode to sinking roller indirect heating.
Adopt the fire-resistant fiber knit blanket folded piece of high-quality to make furnace lining, and have enough thickness, quick heating, insulated capacity are strong, thermosteresis is little, the life-span can reach more than 5 years, effectively prevent external environment to the interference of in-furnace temperature.
Adopt programmable, intelligent digital readout temperature controller 4, automatically can carry out PID adjustment, and intensification, insulation, temperature reduction technology curve (as shown in Figure 4) can be set, guarantee that sinking roller carries out exact heat.
Adopt the star-like heating resistor band 2 of three-phase symmetrical as heating unit, material is 0Cr25Al5, and its large section is towards heated object and sinking roller, and heating unit is large to the radiating surface of heated object, can improve thermo-efficiency, shortens the heating-up time.In addition, resistive band 2 points is arranged in burner hearth both sides, rationally distributed, can make sinking roller thermally equivalent, avoids the modification defect that Gun Xi local heating inequality causes.
The power continuous uniform that power of controlled silicon setter 3 exports, can accurate temperature controlling, and saves energy, makes heating resistor band 2 thermally equivalent simultaneously, improves work-ing life.
Controlling System is provided with the interlock protection functions such as ground connection, overtemperature, power-off, overcurrent, threephase load imbalance, and the system that can ensure can safe and reliable operation when live line work.
Controlling System adopts manual manipulation mode, ensures reliable operation, failure rate is low, and easy to maintenance, long service life.
Claims (3)
1. an aluminum-zinc alloy sinking roller heating and heat-insulating device, it is characterized in that, comprise process furnace, resistive band, thermopair and Controlling System, described Controlling System comprises power of controlled silicon setter and programmable, intelligent digital readout temperature controller, resistive band is evenly distributed on process furnace burner hearth both sides, thermopair is arranged in burner hearth, and programmable, intelligent digital readout temperature controller, power of controlled silicon setter and resistive band connect and compose heating successively and perform loop; Programmable, intelligent digital readout temperature controller and thermopair connect and compose measure loop.
2. a kind of aluminum-zinc alloy sinking roller heating and heat-insulating device according to claim 1, is characterized in that, described resistive band is the star-like heating resistor band of three-phase symmetrical, and material is 0Cr25Al5.
3. a kind of aluminum-zinc alloy sinking roller heating and heat-insulating device according to claim 1, is characterized in that, described programmable, intelligent digital readout temperature controller adopts PID to control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845291.XU CN204455260U (en) | 2014-12-26 | 2014-12-26 | Heating and heat-insulating device for aluminum-zinc-plated sink roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845291.XU CN204455260U (en) | 2014-12-26 | 2014-12-26 | Heating and heat-insulating device for aluminum-zinc-plated sink roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204455260U true CN204455260U (en) | 2015-07-08 |
Family
ID=53662173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420845291.XU Active CN204455260U (en) | 2014-12-26 | 2014-12-26 | Heating and heat-insulating device for aluminum-zinc-plated sink roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204455260U (en) |
-
2014
- 2014-12-26 CN CN201420845291.XU patent/CN204455260U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |