CN207081326U - A kind of intermediate frequency negative electrode heater - Google Patents
A kind of intermediate frequency negative electrode heater Download PDFInfo
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- CN207081326U CN207081326U CN201721037842.XU CN201721037842U CN207081326U CN 207081326 U CN207081326 U CN 207081326U CN 201721037842 U CN201721037842 U CN 201721037842U CN 207081326 U CN207081326 U CN 207081326U
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- intermediate frequency
- heating furnace
- negative electrode
- heating
- power supply
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Abstract
The utility model discloses a kind of intermediate frequency negative electrode heater, the intermediate frequency negative electrode heater includes the first heating furnace, the second heating furnace, conveyer, lifting-positioning device, intermediate frequency power supply and controller, and cathode block is sequentially delivered at the first heating furnace and the second heating furnace by conveyer；Lifting-positioning device rises to be heated with driving cathode block to enter the heating zone of the first heating furnace or the second heating furnace, and after heating terminates, decline makes cathode block return on conveyer；The lifting of controller control lifting-positioning device and heating location；And the frequency of supply of control control intermediate frequency power supply.Controller is connected with intermediate frequency power supply in the utility model intermediate frequency negative electrode heater, and the intermediate frequency power supply is connected with the first heating furnace and the second heating furnace respectively, so that the frequency of supply of intermediate frequency power supply is controlled by controller, realize that centreless heats based on Medium frequency induction, so as to control the heating state of the first heating furnace and/or the second heating furnace, heating effect is improved.
Description
Technical field
Negative electrode technical field of heating is the utility model is related to, more particularly to a kind of intermediate frequency negative electrode heater.
Background technology
Existing cathode assembling preheating station is usually the necessary work station before graphite cathode carbon block phosphorus pig iron casting technique,
For by the negative electrode combined and rod iron by being heated after insulation processing by electricity to rod iron.
Specifically, work station can heat 6 groups of graphite cathode carbon blocks combined and rod iron assembly simultaneously, divide low-temperature zone
With two sections of heating of high temperature section, insulation.Furnace atmosphere Control for Oxygen Content has within 14% by the cathode block cast after preheating
Effect reduces negative electrode iron charcoal pressure drop, reduces aluminium electroloysis direct current consumption, improves current efficiency, and product qualified rate reaches up to more than 99%
Low cost, low power consumption, efficient purpose.Work station mainly by chassis body, platform dolly (two), insulated protective covering, adds
Thermode, heating transformer, control system, pneumatic system, cooling circulating water system etc. are formed.Control voltage is three-phase
380VAC, 50Hz, general power 50KW, mainly control work by PLC.
A), operation principle：
By the cathode carbon pieces combined and rod iron by insulation processing after, both sides are with middle contactor copper billet in cylinder
Lower clamping rod iron is driven, makes its contact, by transformer-supplied, cable, contactor copper billet and rod iron form loop through transformer, this
When rod iron turn into resistance, rod iron is preheated, preheating cathode carbon block after-pouring ferrophosphorus.
B), the course of work：
6 groups of carbon blocks, which are put on 1 platform platform truck, (has positioner) on car, 4 cathode steel bars and carbon block are pressed into technique
It is required that assembling (every group of carbon block has two flutings, and 2 rod irons, 2 rod irons centre preset clearances are placed in each groove), rod iron and carbon
Block central filler insulating materials, prevents conduction.Operating platform truck enters designated area in heating work station, and platform truck can be determined automatically
Position.Put down insulated protective covering (there are multiple temperature sensors on insulated protective covering, measure the temperature in each section).Cylinder operation,
Work station both sides, which heat electrode and clamp rod iron, (to be had cooling circulating water loop in heating electrode, prevents heating-up temperature high electrode from melting
Change), work station target compresses two rod irons of cathode block, forms current loop.Start heating schedule.Control system meeting
Worked by designed temperature rise curve, negative electrode and cathode steel bar is preheated.After cathode sets are preheated, electrode is unclamped, rises and protects
Warm protective cover, platform truck open back initial position, and another platform truck is driven into, and start subsequent cycle.
However, above-mentioned negative electrode preheating station is preheated using resistance heating manner to negative electrode, the effect of heating, limitation are influenceed
Use range；In addition, above-mentioned negative electrode preheating station is only suitable for the negative electrode warm operation in present 660KA electrolytic cells, if electrolysis
Groove demand cathode size somewhat changes, and the preheating station can not just use.
Utility model content
The purpose of this utility model is to provide a kind of intermediate frequency negative electrode heater, can improve heating effect.
To achieve the above object, the utility model provides following scheme：
A kind of intermediate frequency negative electrode heater, the intermediate frequency negative electrode heater include：
First heating furnace and the second heating furnace, first heating furnace are used to carry out the pre-heat treatment to pending cathode block,
Second heating furnace is used to heat the cathode block；
Conveyer, for the cathode block to be sequentially delivered at first heating furnace and the second heating furnace；
Lifting-positioning device, correspondingly the first heating furnace and the second heating furnace setting, for being incited somebody to action in the conveyer
When the cathode block is sent at first heating furnace or the second heating furnace, rise to drive the cathode block to enter described the
The heating zone of one heating furnace or the second heating furnace is heated, and after heating terminates, decline makes the cathode block return to the biography
Send on device；
Intermediate frequency power supply, be connected respectively with first heating furnace and the second heating furnace, for for first heating furnace and
Second heating furnace provides supply voltage；
Controller, it is connected respectively with the lifting-positioning device and intermediate frequency power supply, for controlling the lifting-positioning device
Lifting and heating location；And control controls the frequency of supply of the intermediate frequency power supply, with change first heating furnace and/
Or second heating furnace heating state.
Optionally, the intermediate frequency negative electrode heater also includes：
Optoelectronic switch, it is connected with the controller, for detecting the current location information of the cathode block, and described will works as
Front position information is sent to the controller；The controller controls the lifting-positioning device according to the current location information
Rise.
Optionally, the intermediate frequency negative electrode heater also includes：
Timer, be connected with the controller, for record the cathode block after the lifting-positioning device rises plus
The hot time, and the heat time is sent to the controller；The controller controls the liter according to the heat time
The decline of positioner is dropped.
Optionally, the intermediate frequency negative electrode heater also includes：
Temperature-detecting device, it is connected, and is arranged in the first heating furnace and/or the second heating furnace with the controller, is used
In the heating-up temperature of the detection cathode block, and the heating-up temperature is sent to the controller.
Optionally, the intermediate frequency negative electrode heater also includes：
Transformer, it is connected with external power supply and the intermediate frequency power supply.
Optionally, the transformer is connected by copper bar with the intermediate frequency power supply, and the intermediate frequency power supply passes through copper bar and institute
State the first heating furnace, the connection of the second heating furnace.
Optionally, it is provided with water cooling plant on the copper bar.
Optionally, first heating furnace and the second heating furnace include body of heater and the sensing being arranged in body of heater respectively
Device, the inductor are connected with the intermediate frequency power supply, for after powered up, being heated to the cathode block.
Optionally, the inductor is heating coil.
Optionally, the intermediate frequency negative electrode heater also includes circulation waterway device, for for the high temperature in the inductor
Position cools；
Wherein, the circulation waterway device includes water tank, first circulation waterpipe, second circulation waterpipe, the 3rd circulation
Waterpipe and closed cooling tower；The water tank connects with first circulation waterpipe, and the water in the water tank follows by described first
Ring waterpipe enters the inductor, and the high temperature position in the inductor is cooled；The second circulation waterpipe with it is described
Closed cooling tower connects, and the water in the inductor flows into the closed cooling tower by the second circulation waterpipe
Row cools；The closed cooling tower, the 3rd circulating water pipeline and water tank are sequentially communicated, and the water after cooling follows by described three
Ring waterpipe is flowed into the water tank.
According to specific embodiment provided by the utility model, the utility model discloses following technique effect：
Controller is connected with intermediate frequency power supply in the utility model intermediate frequency negative electrode heater, and the intermediate frequency power supply is respectively with
One heating furnace and the connection of the second heating furnace so that the frequency of supply of intermediate frequency power supply is controlled by controller, it is real based on Medium frequency induction
Existing centreless heating, so as to control the heating state of the first heating furnace and/or the second heating furnace, improves heating effect.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the modular structure schematic diagram of the utility model embodiment intermediate frequency negative electrode heater.
Symbol description：
First heating furnace -1, the second heating furnace -2, lifting-positioning device -3, intermediate frequency power supply -4, controller -5, become
Depressor -6, copper bar -7.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
The purpose of this utility model is to provide a kind of intermediate frequency negative electrode heater, and wherein controller is connected with intermediate frequency power supply, and
The intermediate frequency power supply is connected with the first heating furnace and the second heating furnace respectively so that the power supply of intermediate frequency power supply is controlled by controller
Frequency, realize that centreless heats based on Medium frequency induction, so as to control the heating state of the first heating furnace and/or the second heating furnace, carry
High heating effect.
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail to the utility model.
As shown in figure 1, the utility model intermediate frequency negative electrode heater include the first heating furnace 1, second heating 2, conveyer,
Lifting-positioning device 3, intermediate frequency power supply 4 and controller 5.
Wherein, first heating furnace 1 is used to carry out the pre-heat treatment to pending cathode block, and second heating furnace 2 is used
Heat in the cathode block.Preferably, first heating furnace 1 is flushed and set side by side with second heating furnace 2
Put.
The conveyer is used to the cathode block being sequentially delivered at the heating furnace 2 of the first heating furnace 1 and second.
The corresponding heating furnace 2 of first heating furnace 1 and second of the lifting-positioning device 3 is set, in the transmission
When the cathode block is sent at the heating furnace 2 of the first heating furnace 1 or second by device, rise to drive the cathode block to enter
The heating zone for entering the heating furnace 2 of the first heating furnace 1 or second is heated, and after heating terminates, decline makes the cathode block
Return on the conveyer.Preferably, the quantity of the lifting-positioning device is multiple to be separately positioned on first heating
Charging aperture, the discharging opening of stove 1, charging aperture, the discharging opening of the second heating furnace 2.
The intermediate frequency power supply 4 is connected with the heating furnace 2 of the first heating furnace 1 and second respectively, for adding for described first
The heating furnace 2 of hot stove 1 and second provides supply voltage.
The controller 5 is connected with the lifting-positioning device and intermediate frequency power supply 4 respectively, for controlling the lifting positioning
The lifting of device and heating location；And control controls the frequency of supply of the intermediate frequency power supply 4, to change first heating
The heating state of the heating furnace 2 of stove 1 and/or second.Wherein, the controller 5 can according to heat cathode block size,
The rise moment of the lifting-positioning device is controlled, to adjust the heating location, so that the utility model intermediate frequency negative electrode
Heater can realize the heating to different size cathode blocks.
Wherein, the controller 5 can be PLC, in the present embodiment, using Siemens S7-200
Programmable controller can realize unit adjustment control, manually control, semiautomatic control, Automatic Control, while according to each equipment
Technological requirement interlock protection function is realized to each section in equipment.
Preferably, the utility model intermediate frequency negative electrode heater also includes optoelectronic switch, the optoelectronic switch and the control
Device 5 connects, and is sent for detecting the current location information of the cathode block, and by the current location information to the control
Device；The controller controls the rise of the lifting-positioning device according to the current location information.Such as when the photoelectricity is opened
When pass detects that the cathode block reaches the heating zone of first heating furnace 1, the current location is sent to the controller
5, the controller 5 controls hydraulic system to rise the lifting-positioning device, and then cathode block is added by the first heating furnace 1
Heat；After heating terminates, control lifting-positioning device declines, and cathode block is returned on conveyer.
Further, the utility model intermediate frequency negative electrode heater also includes timer, the timer and the controller 5
Connection, for recording the heat time of the cathode block after the lifting-positioning device rises, and the heat time is sent
To the controller；The controller 5 controls the decline of the lifting-positioning device according to the heat time.Specifically, institute
The size that controller 5 compares heat time and time threshold is stated, if the heat time reaches time threshold, controls the lifting
Positioner declines, and to stop the heating to the cathode block, otherwise continues to heat.In the present embodiment, the time threshold
Then it is 4~6 pieces per the actual cathode blocks heated of 60min for 10~15min.
In addition, the utility model intermediate frequency negative electrode heater also includes temperature-detecting device, the temperature-detecting device and institute
State controller 5 to connect, and be arranged in the first heating furnace 1 and/or the second heating furnace 2, for detecting the heating of the cathode block
Temperature, and the heating-up temperature is sent to the controller 5.The controller 5 according to heating-up temperature and temperature threshold, it is determined that
Whether cooling processing is heated or carried out in stopping.In the present embodiment, the temperature threshold is 400~600 DEG C.
In addition, the utility model intermediate frequency negative electrode heater also includes transformer 6, the transformer 6 respectively with external power supply
And the intermediate frequency power supply 4 connects, the extraneous power supply provides electric energy by transformer 6 for the intermediate frequency power supply.
Optionally, the transformer 6 is connected by copper bar 7 with the intermediate frequency power supply 4, and the intermediate frequency power supply 4 passes through copper bar 7
It is connected with first heating furnace 1, the second heating furnace 2.Preferably, it is provided with water cooling plant on the copper bar.
In the present embodiment, the rated power of the intermediate frequency power supply 4 is 5000KW, and using the power supply of " one drag two ", it becomes
The capacity of depressor 6 is 5500KVA.Wherein, " one drag two " adds the first heating furnace 1 and second to be powered by the intermediate frequency power supply 4
Hot stove 2 works simultaneously.In the present embodiment, the single-machine capacity of the heating furnace 2 of the first heating furnace 1 and second is 3500KW
Further, the cooling water flexible pipe of the intermediate frequency power supply 4 uses carbon-free sebific duct, and power inleting terminal is equipped with automatic air
Breaker.No matter and the size of the output power value of the intermediate frequency power supply 4, the power of the utility model intermediate frequency negative electrode heater because
Number is not less than 0.95 all the time.And because the intermediate frequency power supply 4 has the function of automatic frequency tracking, the intermediate frequency power supply 4 can be made
And first remain optimal matching, company of the operating personnel without switch capacitor between heating furnace 1 and the second heating furnace 2
Connect, so as to avoid operation factors from influenceing the efficiency of system.Secondly, higher hamonic wave caused by the intermediate frequency power supply 4 meets standard JB/
(normal in power supply grid state, the capacity of short circuit of circuit is not less than for the requirement of the T14549-93 qualities of power supply, utility network harmonic wave
Under 250MVA use condition).The starting success rate of the intermediate frequency power supply 4 should be up to 100%.Power supply cooling water input have hydraulic pressure after
Electrical equipment, control and forbid starting or cutting off intermediate frequency power supply when no-cooling-water.In addition, to make the intermediate frequency power supply pacify in use
Entirely, stably, reliably, there is provided following defencive function：A, major loop short-circuit protection, B, controllable silicon overvoltage protection, C, major loop
Fault-phase protection, D, coolant water temperature protection, E, major loop open-phase protection, F, cooling water pressure minimum living shield, G, controllable silicon overcurrent protection,
H, runout is protected, Y, intermediate frequency power supply error protection, J, middle frequency furnace error protection.
The heating furnace 2 of first heating furnace 1 and second includes body of heater and the inductor being arranged in body of heater respectively, described
Inductor is connected with the intermediate frequency power supply 4, for after powered up, being heated to the cathode block.In the present embodiment, the sensing
Device is heating coil, what the principle sensed by intermediate frequency electromagnetic was operated, is circular ring type induction coil property, cathode block is at it
Centre passes through.
Specifically, according to the cathode block for choosing requirement specification, hung by overhead traveling crane on upper polar region；Is sent to by transmission system
In one heating furnace, when each working cell of producing line to be generated is in normal operating conditions, inductor, which is powered, to be waited to expect, is preheated first,
Then pass in the second heating furnace and heated, the heat time is that 10~15 minutes top for being heated to cathode block is more than 400
DEG C, rod iron is less than 700 DEG C, is cast subsequently into casting area.
Cathode block is caused to damage to avoid temperature too high, the utility model intermediate frequency negative electrode heater also includes circulation waterway
Device, for cooling for the high temperature position in the inductor.
Wherein, the circulation waterway device includes water tank, first circulation waterpipe, second circulation waterpipe, the 3rd circulation
Waterpipe and closed cooling tower；The water tank connects with first circulation waterpipe, and the water in the water tank follows by described first
Ring waterpipe enters the inductor, and the high temperature position in the inductor is cooled；The second circulation waterpipe with it is described
Closed cooling tower connects, and the water in the inductor flows into the closed cooling tower by the second circulation waterpipe
Row cools；The closed cooling tower, the 3rd circulating water pipeline and water tank are sequentially communicated, and the water after cooling follows by described three
Ring waterpipe is flowed into the water tank.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Explanation be only intended to help and understand method and its core concept of the present utility model；Meanwhile for the general technology of this area
Personnel, according to thought of the present utility model, there will be changes in specific embodiments and applications.In summary,
This specification content should not be construed as to limitation of the present utility model.
Claims (10)
1. a kind of intermediate frequency negative electrode heater, it is characterised in that the intermediate frequency negative electrode heater includes：
First heating furnace and the second heating furnace, first heating furnace is used to carry out the pre-heat treatment to pending cathode block, described
Second heating furnace is used to heat the cathode block；
Conveyer, for the cathode block to be sequentially delivered at first heating furnace and the second heating furnace；
Lifting-positioning device, correspondingly the first heating furnace and the second heating furnace setting, described in being incited somebody to action in the conveyer
When cathode block is sent at first heating furnace or the second heating furnace, rises and added with driving the cathode block to enter described first
The heating zone of hot stove or the second heating furnace is heated, and after heating terminates, decline makes the cathode block return to the transmission dress
Put；
Intermediate frequency power supply, it is connected respectively with first heating furnace and the second heating furnace, for for first heating furnace and second
Heating furnace provides supply voltage；
Controller, it is connected respectively with the lifting-positioning device and intermediate frequency power supply, for controlling the liter of the lifting-positioning device
Drop and heating location；And control controls the frequency of supply of the intermediate frequency power supply, to change first heating furnace and/or the
The heating state of two heating furnaces.
2. intermediate frequency negative electrode heater according to claim 1, it is characterised in that the intermediate frequency negative electrode heater also includes：
Optoelectronic switch, it is connected with the controller, for detecting the current location information of the cathode block, and by the present bit
Confidence breath is sent to the controller；The controller controls the liter of the lifting-positioning device according to the current location information
Rise.
3. intermediate frequency negative electrode heater according to claim 1, it is characterised in that the intermediate frequency negative electrode heater also includes：
Timer, it is connected with the controller, during for recording the heating of the cathode block after the lifting-positioning device rises
Between, and the heat time is sent to the controller；The controller is fixed according to the heat time control lifting
The decline of position device.
4. intermediate frequency negative electrode heater according to claim 1, it is characterised in that the intermediate frequency negative electrode heater also includes：
Temperature-detecting device, it is connected, and is arranged in the first heating furnace and/or the second heating furnace with the controller, for examines
The heating-up temperature of the cathode block is surveyed, and the heating-up temperature is sent to the controller.
5. intermediate frequency negative electrode heater according to claim 1, it is characterised in that the intermediate frequency negative electrode heater also includes：
Transformer, it is connected with external power supply and the intermediate frequency power supply.
6. intermediate frequency negative electrode heater according to claim 5, it is characterised in that the transformer by copper bar with it is described in
Frequency power is connected, and the intermediate frequency power supply is connected by copper bar with first heating furnace, the second heating furnace.
7. intermediate frequency negative electrode heater according to claim 6, it is characterised in that be provided with water cooling plant on the copper bar.
8. the intermediate frequency negative electrode heater according to any one of claim 1-7, it is characterised in that first heating furnace and
Second heating furnace includes body of heater respectively and the inductor being arranged in body of heater, the inductor are connected with the intermediate frequency power supply,
For after powered up, being heated to the cathode block.
9. intermediate frequency negative electrode heater according to claim 8, it is characterised in that the inductor is heating coil.
10. intermediate frequency negative electrode heater according to claim 8, it is characterised in that the intermediate frequency negative electrode heater also includes
Circulation waterway device, for cooling for the high temperature position in the inductor；
Wherein, the circulation waterway device includes water tank, first circulation waterpipe, second circulation waterpipe, the 3rd circulating water pipe
Road and closed cooling tower；The water tank connects with first circulation waterpipe, and the water in the water tank passes through the first circulation water
Pipeline enters the inductor, and the high temperature position in the inductor is cooled；The second circulation waterpipe and the enclosed
Cooling tower connects, the water in the inductor flowed into by the second circulation waterpipe in the closed cooling tower carry out it is cold
But cool；The closed cooling tower, the 3rd circulating water pipeline and water tank are sequentially communicated, and the water after cooling passes through three recirculated water
Pipeline is flowed into the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721037842.XU CN207081326U (en) | 2017-08-18 | 2017-08-18 | A kind of intermediate frequency negative electrode heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721037842.XU CN207081326U (en) | 2017-08-18 | 2017-08-18 | A kind of intermediate frequency negative electrode heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207081326U true CN207081326U (en) | 2018-03-09 |
Family
ID=61419583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721037842.XU Expired - Fee Related CN207081326U (en) | 2017-08-18 | 2017-08-18 | A kind of intermediate frequency negative electrode heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207081326U (en) |
-
2017
- 2017-08-18 CN CN201721037842.XU patent/CN207081326U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 |