CN109133576A - A kind of cover-plate glass electric smelter electrode propulsion device and propulsion method - Google Patents
A kind of cover-plate glass electric smelter electrode propulsion device and propulsion method Download PDFInfo
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- CN109133576A CN109133576A CN201810948503.XA CN201810948503A CN109133576A CN 109133576 A CN109133576 A CN 109133576A CN 201810948503 A CN201810948503 A CN 201810948503A CN 109133576 A CN109133576 A CN 109133576A
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- electrode
- propulsion
- progradation
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/03—Tank furnaces
Abstract
The invention discloses a kind of cover-plate glass electric smelter electrode propulsion device and propulsion method, described device holds steel structure by tank furnace support iron lifting top, offers top on tank furnace steel structure and holds hole, the anchor point that hole is corresponding in a water-cooled plate is held on each top；When propulsion device promotes electrode, propulsion lead screw holds hole across top and withstands anchor point；Electric smelter pool wall lower end is additionally provided with lifting body, and when promoting electrode, lifting body raises battery tray, facilitates propulsion；The propulsion device is provided with 6 propulsion points altogether, guarantees that entire progradation, electrode outer wall uniform force select propulsion lead screw as promotion tool and progradation enabled to slowly to carry out, observe electrode case in progradation at any time, progradation is controllable；Propulsion lead screw promotes electrode by water-cooled plate, so that electrode entirety uniform force, avoids electrode damage caused by local pressure.The device is practical, convenient to implement to promote operation in production gap, reduces the influence to production.
Description
[technical field]
The invention belongs to cover-plate glass production fields, and in particular to a kind of cover-plate glass electric smelter electrode propulsion device and push away
Into method.
[background technique]
Electrode is usually semiconductor material, and resistance value is larger under room temperature, and with the raising of temperature, resistance value is in geometric progression
It reduces, is generally used in the glass of oxidizing atmosphere, has the feature of certain resistance value in molten condition using glass, pass through
Electrode generates Joule heat to glass direct-electrifying, constantly melts glass, achievees the purpose that continuous smelting.
Conditions environmental used in high alumina cover-plate glass electric smelter electrode is that at high temperature, tank furnace electrode is in use process
In, by the erosion of glass metal and the deterioration of electrode use condition, molten bath medial electrode will appear different degrees of damage, this feelings
Condition will affect the stabilization of heated by electrodes efficiency and tank furnace technique, therefore electrode is in use for some time, needs according to electrode
Consumption periodically carries out the propulsion operation of electrode, reduces its influence to tank furnace technique and quality, reaches the mesh of continuous melting
's.
[summary of the invention]
It is an object of the invention to overcome the above-mentioned prior art, a kind of high alumina cover-plate glass electric smelter electrode is provided
Propulsion device and propulsion method.The device and method periodically carries out the propulsion operation of electrode according to the consumption of electrode, reduces electricity
Extremely to the influence of tank furnace technique and quality.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of cover-plate glass electric smelter electrode propulsion device, including tank furnace support iron and propulsion lead screw, tank furnace support ferropexy peace
Mounted in the top of electric smelter pool wall；The bottom of tank furnace support iron is fixedly connected with top and holds steel structure, and top, which is held, to be offered 6 tops and hold on steel structure
Hole；Electrode is fixedly mounted in electric smelter pool wall, and water-cooled plate is fixedly connected on electrode outer wall, is provided on the outer wall of water-cooled plate
6 anchor points, 6 anchor points are symmetrical relative to the longitudinal and transverse direction center line of water-cooled plate；Along the direction of propulsion of electrode, each
Hold the corresponding anchor point in hole in top；Top, which is held, gap between hole and water-cooled plate；The lower end of electric smelter pool wall is provided with can be upward
Mobile lifting body；When propulsion device promotes electrode, propulsion lead screw passes through top and holds hole, withstands anchor point.
A further improvement of the present invention is that:
Preferably, it includes that frame is held on 2 support frames and 3 tops that steel structure is held on top；2 support frames are perpendicular to tank furnace support iron, 3 tops
Frame is held each parallel to tank furnace support iron；The top of 2 support frames is connected with tank furnace support ferropexy；Hold the both ends difference of frame in each top
It is fixedly connected with a support frame；Each top hold opened up on frame there are two top hold hole.
Preferably, tank furnace support iron, support frame and top hold frame and select high temperature resistant square steel.
Preferably, anchor point offers counterbore.
Preferably, coaxial nut is fixedly mounted in the outside that hole is held on top.
A kind of electrode propulsion method based on the electrode propulsion device, comprising the following steps:
S1, lifting body is promoted, lifting body has pushed up electrode, and the bottom of electrode is made to be detached from the pool wall of electric smelter pool wall
Brick；
S2, increase in anchor point and put bakelite plate, increase bakelite plate between electrode and the tuyere of two sides；
S3, propulsion lead screw is passed through to push up and holds hole, withstand anchor point；
S4, closed electrode two sides cooling wind, the temperature around measuring electrode, when surrounding them temperature is at 580-650 DEG C
Between, carry out electrode progradation；
S5, successively two diagonal propulsion lead screws of rotation carry out propulsion operation simultaneously, when the rotation of all propulsion lead screws is turned around
Afterwards, confirm electrode, surrounding them electric smelter pool wall tank block it is in stable condition, continue promote operation；It is full to electrode push-in stroke
Sufficient sets requirement.
Preferably, in step S1, before promoting lifting body, the tuyere of electrode two sides is adjusted, so that tuyere when electrode promotes
There is gap with electrode.
Preferably, in step S5, the specific steps of electrode are promoted are as follows:
1) any diagonal two propulsion lead screws 1/4 circle is rotated simultaneously；2) the other two diagonal propulsion lead screws 1/4 of rotation
Circle；3) intermediate two propulsion lead screws 1/4 circle of rotation.
Preferably, in step S5, when progradation is obstructed, the glass in surrounding them gap is heated, to surrounding them glass
After glass softening, continue to promote operation.
Preferably, in the progradation of entire electrode, electrode loading current keeps constant value, monitors electrode loading current value
And secondary voltage value；The operating time 15-20min of entire progradation.
Compared with prior art, the invention has the following advantages:
The invention discloses a kind of cover-plate glass electric smelter electrode propulsion device, described device passes through tank furnace support iron lifting top
Steel structure is held, top is offered on tank furnace steel structure and holds hole, the anchor point that hole is corresponding in a water-cooled plate is held on each top；Propulsion device
When promoting electrode, propulsion lead screw holds hole across top and withstands anchor point；Electric smelter pool wall lower end is additionally provided with lifting body, works as propulsion
When electrode, lifting body raises battery tray, facilitates propulsion；The propulsion device is provided with 6 propulsion points altogether, guarantees entire
Progradation, electrode outer wall uniform force select propulsion lead screw as promotion tool and progradation are enabled to slowly to carry out, push away
Into electrode case is observed at any time in the process, progradation is controllable；Propulsion lead screw promotes electrode by water-cooled plate, so that electrode is whole
Uniform force avoids electrode damage caused by local pressure.The device is practical, convenient to implement to promote work in production gap
Industry reduces the influence to production.
Further, top, which holds steel structure and holds frame by support frame and top, forms, and support frame is connect with tank furnace support ferropexy, is pushed up and is held frame
On offer top and hold hole, augering screw, which passes through top, to be held hole and carries out propulsion operation to water-cooling wall, and top holds frame and is designed to that the structure is convenient
The state of electrode from operator holds between frame at any time from top.
Further, tank furnace support iron, support frame and top hold frame and select high temperature resistant square steel, guarantee the steady of propulsion device shape
It is qualitative, meet and promotes required precision.
Further, anchor point offers counterbore, guarantees that augering screw is inserted into counterbore, and progradation promotes spiral shell
The end of bar will not shift in progradation because stress is excessive.
Further, top, which is held, is fixedly installed with coaxial nut on the outside of hole, guarantee that augering screw is in the shape of vertical water-cooled plate
State；Direction of propulsion will not shift.
The invention also discloses a kind of cover-plate glass electric smelter electrode propulsion methods, are slowly advanced electricity by jackscrew mechanism
Pole, and jackscrew position alternately operating guarantee in tank block inside face and glass metal to smoothly carry out propulsion operation to electrode
Electrode surface it is concordant, and two side clearance of electrode is consistent, can effectively avoid electrode up and down or left and right promotes inconsistent, cause wall
Brick inside face and the electrode surface in glass metal be not concordant and the situations such as unbalance stress, washes away to reduce it to tank furnace electrode,
Accelerate the consumption of electrode, while reducing the influence to technique and quality.
[Detailed description of the invention]
Fig. 1 is the structural diagram of the present invention；
Wherein: 1- electrode；2- water-cooled plate；3- tank furnace support iron；4- electric smelter pool wall；5- holds steel structure in top；6- lifting body；7-
Hold frame in top；8- holds hole in top；9- anchor point；10- support frame.
[specific embodiment]
The invention will be described in further detail with reference to the accompanying drawing:
Referring to Fig. 1, the invention discloses a kind of cover-plate glass electric smelter electrode propulsion device and propulsion method, the device is whole
Body is mounted on the side wall of electric smelter pool wall 4, which includes tank furnace support iron 3 and steel structure 5 is held on top, and tank furnace support iron 3 is along electric smelter
The top margin of pool wall 4 is fixedly mounted；It includes that 7,2 support frames 10 of frame are held perpendicular to pond in 2 support frame 10 and 3 tops that steel structure 5 is held on top
Frame 7 is held each parallel to tank furnace support iron 3 in furnace support iron 3,3 tops；The fixed company in bottom on the top and tank furnace support iron 3 of 2 support frames 10
It connects；The both ends that frame 7 is held on each top are fixedly connected with a support frame 10 respectively；It is each top hold opened up on frame 7 there are two top hold
8,3, hole top, which is held, to be offered 6 tops altogether and holds hole 8 on frame 7, each, which is pushed up, holds the outside in hole 8 and be fixedly installed with a coaxial nut.
Electrode 1 is fixedly mounted in electric smelter pool wall 4, is fixedly connected with water-cooled plate 2 on 1 outer wall of electrode, water-cooled plate 2 it is outer
It is symmetrical relative to the longitudinal and transverse direction center line of water-cooled plate 2 that 6 anchor points, 9,6 anchor points 9 are provided on wall；Each positioning
Point 9 offers counterbore；Along the direction of propulsion of electrode 1, the corresponding anchor point 9 in hole 8 is held on each top；Hold hole 8 and water-cooled plate 2 in top
Between have gap；The lower end of electric smelter pool wall 4 is provided with the lifting body 6 that can be moved up；Propulsion device promotes electrode 1
When, propulsion device is provided with propulsion lead screw and holds hole 8 across nut and top, is inserted into the counterbore of each anchor point 9；Tank furnace support
Iron 3, support frame 10 and top hold frame 7 and select high temperature resistant square steel.
The specific progradation of the present apparatus is are as follows:
1. operation prepares before electrode 1 promotes
The calculating of 1.1 electrode, 1 consumption
1.2 propulsive mechanisms and ambient state confirmation
1) propulsion lead screw is adequately lubricated and confirms that lead screw has sufficient nargin before promoting.
2) around tank furnace tank furnace support iron 3, duckbilled air hose, electrode 16 state confirmation of lifting body, confirm every mechanism it
Between do not interfere phenomenon, confirmation tank furnace support iron 3, duckbilled air hose and electrode 1 maintain a certain distance, in order to avoid in progradation
Short circuit phenomenon occurs.
The confirmation of 1.3 tank furnace electrode, 1 electric property and test
1) confirm 1 length of electrode, detect the insulation performance of lead screw and lifting body 6, check and promote Job Operations safety,
Whether electric smelting electric current etc. has anomalous variation.
2) real-time monitoring is needed in 1 progradation of electrode and survey 1 electric current of electrode, voltage；Need complete monitoring ups power equipment
Operation conditions, and constantly feed back new situation；
The preparation of 1.4 driving tools and Emergency Tool goods and materials
1) tool and labour protection prepare
Prepare propulsion and protective device, including insulation wrench (12 cun) two, self-control bakelite ruler two, insulating glove four
Double, insulation four pairs, rubber overshoes, two four sets of cotton dress cotton-padded trousers, 46cm ratchet torque spanner (0-500kg/cm2), loosen liquid.
2) emergency substance prepares
One case of refractory cotton, high pressure cooling duct two-way connect spare, stainless drill rod and stainless steel clip scene it is spare, emergency
Fire-fighting waterway two-way, emergency industry water two-way, emergency refractory brick several piece.
Divide the work before 1.5 operations to personnel
1) department leader is promoted closely to be solely responsible for, propulsion 3 people of personnel, 1 people of site safety care provider, electrode 1 week
1 people of condition monitoring is enclosed, electrode 1 promotes dimensional measurement and electrode seam temperature to measure a people, 6 one people of lifting body, blower frequency one
People, smoke exhaust fan adjust a people, and one people of controling of the pressure of the oven, one people of liquid level, tank furnace and via process control a people.
2) different groups is appointed to control liquid level, the propulsion of electrode 1 and cooperation and monitoring respectively.
2. 1 forward step of electrode:
Before 2.1 operations to around tank furnace state and driving tool reaffirm, while adjusting 1 two sides tuyere of electrode
Position guarantees that electrode 1 does not collide electrode 1 in progradation.
Personnel need to fully understand the detail of this progradation scheme, increased one-shot job before 2.2 push-in electrodes 1
And every newly-increased requirement.
2.3 before being pushed into electrode 1, with the professional tool lifting body 6 of production (specific purpose tool must carry out insulation processing)
Electrode is promoted, makes its 1 weight of safe bearing load electrode, 1 bottom of electrode completely disengages tank block；1 jackscrew of electrode need to promoted and sunk
Increase bakelite plate between hole, makes not collide between operator, tool；The cooling tuyere position in 1 two sides of electrode is adjusted before operation
It sets, guarantees that electrode 1 does not touch electrode 1 in progradation；Bakelite plate need to be increased separately among electrode 1 and 1 two sides tuyere of electrode,
Guarantee that short circuit does not occur in progradation.
2.4 close the top of operated electrode 1 and two sides cooling wind, observe the state change of temperature at 1 gap of electrode, make
Tank block, 1 aperture temp situation of change of electrode are persistently adhered to infrared radiation thermometer, when 1 ambient temperature of electrode reaches (580-650
DEG C) left and right, electrode 1 can be carried out and promote operation.
In 2.5 electrode, 1 progradation, four people are one group, and two people operate jackscrew, and people monitoring and record, a people observe electricity
The movement and deviation trend of pole 1, and operator is instructed to be corrected operation in time, two people carry out electrode 1 in side simultaneously
It is pushed into operation, propulsion lead screw is passed through into nut and hole 8 is held on top, is inserted into the counterbore at anchor point 9；Simultaneously with spanner to propulsion
Screw rod carries out propulsion operation, guarantees that electrode 1 does not tilt in propulsion, and jackscrew firmly cannot be too quickly for the first time, in order to avoid damage electrode
1.If progradation is more difficult, never beaten with hand hammer, in case damage electrode 1 can after waiting 1 surrounding Glass Transition of electrodes
It makes smooth advances.
When 2.6 propulsion operation, it is pushed into diagonal orientation point 9 above and below taking and alternately, guarantees unbiased in 1 progradation of electrode
To and inclination.During propulsion, strength will uniformly if pushing away the deformation of motionless or jackscrew it is necessary to temporarily cease operation, add
1 surrounding gap of thermode；It promotes comprehensively step are as follows: 1) rotate any diagonal two propulsion lead screws 1/4 circle simultaneously；2) rotation is another
Outer diagonal two propulsion lead screws 1/4 circle；3) intermediate two propulsion lead screws 1/4 circle of rotation；6 screw thread jackscrew alternately operatings；
After jackscrew rotation is turned around, stops and observe the active state of electrode 1,1 surrounding tank block of electrode, upper electrode 1, observation electrode 1,
The active state of 1 surrounding tank block of electrode, upper electrode 1, after confirming that all are in stable condition, can answer speed to carry out propulsion operation
2.7 entire push-in 1 job controls of electrode reduced the influence to technique at 15-20 minutes.
2.8 in entire progradation, and 1 loading current of electrode does not adjust, and in progradation, pays close attention to electrode 1
Loading current current value, load secondary voltage variation.
After the completion of 2.9 confirmation push-in electrodes 1 work, cooling wind is slowly opened, with anti-cracking, promotes front and back pool wall cooling section
Frequency does not make special adjustment, while monitoring tank furnace presence states.
3. the technology controlling and process of progradation
3.1 level control
According to the liquid level lifting height calculated before promoting, the prevention adjustment of liquid level is carried out within 20 minutes in advance, in combination with pushing away
It carries out the intervention of liquid level in time into the complexity of process, controls the time that live electrode 1 promotes when necessary, prevent liquid level excessively high
Or there is big fluctuation.
3.2 pool wall cooling wind frequencies
1) it needs gradually to close pool wall cooling wind in 1 progradation of electrode, confirms 1 aperture temp of electrode at 600 DEG C or more.
2) unlatching of pool wall cooling wind is taken and gradually reduces pool wall cooling wind frequency until closing cooling blower；
3) method for being stepped up pool wall cooling wind frequency is taken in the unlatching of pool wall cooling wind, until restoring before closing
Cooling blower frequency；
4) it is too urgent to be sure not to operate during adjustment, prevents tank block and electrode 1 from occurring bursting phenomenon.
5) pool wall cooling wind frequency closing sequence: the 50%--- of primary frequency --- primary frequency is closed；
6) pool wall cooling wind frequency opening sequence: open --- the 50%--- primary frequency of primary frequency；
The variation of 3.3 monitoring tank furnace electric smelting voltages, power meter resistivity.
Electrode 1 is in progradation, and because of pool wall cooling wind to be closed, the voltage of electrode 1 will appear decline process sharply,
For electrode 1 with the variation for promoting depth in progradation, 1 voltage of electrode and resistivity will appear a sharp decline.
3.4 bottom of pond temperature
Bottom of pond temperature does not adjust, and the variation of monitor closely bottom of pond temperature, bottom of pond temperature will appear small in progradation
The rise phenomenon of amplitude can be self-healing after propulsion.
3.5 coping temperature
Coping temperature is influenced by liquid level meter furnace pressure, and coping temperature will appear a degree of rising, is progradation amount
Brought variation can not adjust, based on monitoring.
4. operation points for attention:
4.1 pay attention to the insulating protection in progradation, prevent electrode 1 from tilting and striking sparks；
4.2 pay attention to the restorative adjustment of liquid level after the completion of the fluctuation of liquid level, the especially propulsion of electrode 1, and level control is existed
In processing range；
4.3 pay attention to the variation of monitor closely tank furnace presence states after promoting.
5. record:
Original, the propulsion size of 5.1 recording electrodes 1 promote the time；
The variable quantity of voltage and resistivity in 5.2 record progradations.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of cover-plate glass electric smelter electrode propulsion device, which is characterized in that including tank furnace support iron (3) and propulsion lead screw, pond
Furnace support iron (3) is fixedly mounted on the top of electric smelter pool wall (4)；The bottom of tank furnace support iron (3) is fixedly connected with top and holds steel structure
(5), top, which is held, offers 6 tops and holds hole (8) on steel structure (5)；Electrode (1) is fixedly mounted in electric smelter pool wall (4), electrode (1)
It is fixedly connected on outer wall water-cooled plate (2), 6 anchor points (9), 6 anchor point (9) phases is provided on the outer wall of water-cooled plate (2)
It is symmetrical for the longitudinal and transverse direction center line of water-cooled plate (2)；Hole (8) corresponding one are held on direction of propulsion along electrode (1), each top
A anchor point (9)；Top, which is held between hole (8) and water-cooled plate (2), gap；The lower end of electric smelter pool wall (4) is provided with can be upward
Mobile lifting body (6)；When propulsion device promotes electrode (1), propulsion lead screw passes through top and holds hole (8), withstands anchor point (9).
2. a kind of cover-plate glass electric smelter electrode propulsion device according to claim 1, which is characterized in that hold steel structure in top
It (5) include that frame (7) are held on 2 support frames (6) and 3 tops；2 support frames (10) hold frame (7) perpendicular to tank furnace support iron (3), 3 tops
Each parallel to tank furnace support iron (3)；The top of 2 support frames (10) is fixedly connected with tank furnace support iron (3)；Hold frame (7) in each top
Both ends be fixedly connected respectively with a support frame (10)；Each top hold opened up on frame (7) there are two top hold hole (8).
3. a kind of cover-plate glass electric smelter electrode propulsion device according to claim 2, which is characterized in that tank furnace support iron
(3), support frame (10) and top hold frame (7) and select high temperature resistant square steel.
4. a kind of cover-plate glass electric smelter electrode propulsion device according to claim 1, which is characterized in that anchor point (9)
Offer counterbore.
5. a kind of cover-plate glass electric smelter electrode propulsion device according to claim 1, which is characterized in that hold hole (8) in top
Outside coaxial nut is fixedly mounted.
6. a kind of electrode propulsion method based on electrode propulsion device described in claim 1-5 any one, which is characterized in that packet
Include following steps:
S1, lifting body (6) are promoted, lifting body (6) has pushed up electrode (1), and the bottom of electrode (1) is made to be detached from electric smelting furnace hearth
The tank block of wall (4)；
S2, increase in anchor point (9) and put bakelite plate, increase bakelite plate between electrode (1) and the tuyere of two sides；
S3, propulsion lead screw is passed through to push up and holds hole (8), withstand anchor point (9)；
S4, closed electrode (1) two sides cooling wind, the temperature around measuring electrode (1), when electrode (1) ambient temperature is in 580-
Between 650 DEG C, electrode (1) progradation is carried out；
S5, successively two diagonal propulsion lead screws of rotation carry out propulsion operation simultaneously, after the rotation of all propulsion lead screws is turned around, really
The tank block for recognizing the electric smelter pool wall (4) of electrode (1), electrode (1) around is in stable condition, continues to promote operation；It is pushed away to electrode (1)
Input meets sets requirement.
7. electrode propulsion method according to claim 6, which is characterized in that in step S1, before promoting lifting body (6),
The tuyere of electrode (1) two sides is adjusted, so that there are gap in tuyere and electrode (1) when electrode (1) promotes.
8. electrode propulsion method according to claim 6, which is characterized in that in step S5, promote the specific step of electrode (1)
Suddenly are as follows:
1) any diagonal two propulsion lead screws 1/4 circle is rotated simultaneously；2) other diagonal two propulsion lead screws 1/4 circle of rotation；
3) intermediate two propulsion lead screws 1/4 circle of rotation.
9. electrode propulsion method according to claim 6, which is characterized in that in step S5, when progradation is obstructed, heating
Glass in electrode (1) surrounding gap continues to promote operation after electrode (1) surrounding Glass Transition.
10. electrode propulsion method according to claim 6, which is characterized in that in the progradation of entire electrode (1), electricity
Pole (1) loading current keeps constant value, monitors electrode (1) loading current value and secondary voltage value；The work of entire progradation
Duration 15-20min.
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| CN112624572A (en) * | 2020-12-30 | 2021-04-09 | 彩虹（合肥）液晶玻璃有限公司 | Electrode propelling device for TFT-LCD substrate glass tank furnace |
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| CN111072259A (en) * | 2019-12-30 | 2020-04-28 | 彩虹显示器件股份有限公司 | Device and method for propelling upper and lower electrodes of glass kiln |
| CN111072259B (en) * | 2019-12-30 | 2023-05-16 | 彩虹显示器件股份有限公司 | Device and method for propelling upper and lower electrode layers of glass kiln |
| CN112624572A (en) * | 2020-12-30 | 2021-04-09 | 彩虹（合肥）液晶玻璃有限公司 | Electrode propelling device for TFT-LCD substrate glass tank furnace |
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Application publication date: 20190104 |