CN109631588A - A kind of method for maintaining of all-electric melting kiln - Google Patents
A kind of method for maintaining of all-electric melting kiln Download PDFInfo
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- CN109631588A CN109631588A CN201910100403.6A CN201910100403A CN109631588A CN 109631588 A CN109631588 A CN 109631588A CN 201910100403 A CN201910100403 A CN 201910100403A CN 109631588 A CN109631588 A CN 109631588A
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- pool wall
- electric melting
- electrode
- brick
- melting kiln
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1621—Making linings by using shaped elements, e.g. bricks
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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
- C03B5/02—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/07—Glass
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The present invention discloses a kind of method for maintaining of all-electric melting kiln, including hot repair and cold repair, hot repair is the main electrode load that (1) first shuts down all-electric melting kiln, and the state that electrode and dog-hole are adjusted to heat preservation will be started, when the temperature of upper pool wall is down to 95-105 DEG C, local route repair is carried out to impaired tank block or transitional brick；(2) length for observing and measuring molybdenum electrode in all-electric melting kiln, is replaced or continues to according to the extent of damage of molybdenum electrode to make it have preferable working condition；(3) main electrode load is adjusted to high pressure gear until the temperature in upper storage reservoir rises to 850-900 DEG C, addition main molten polarizing electrode does further power-up heating, until daily production status demand.Present invention can ensure that can restore as new, this method slows down corrosion of the glass metal to corundum brick significantly relatively, extends kiln service life, effectively reduces production cost, safety and environmental protection, energy-saving consumption-reducing when all-electric melting kiln end-of-life without all shifting onto.
Description
Technical field
The present invention relates to minerals fusion apparatus technical field more particularly to a kind of method for maintaining of all-electric melting kiln.
Background technique
All Electric Melting Furnace is one kind of glass electric melting, and after it is found that high temp glass can be conductive, electric energy can make heat source
Glass is melted, i.e., melts glass with electric melting furnace.And it is all by electricity that All Electric Melting Furnace, which is exactly all normal work furnace fuels,
Power.The cardinal principle of All Electric Melting Furnace is generally added in kiln thorax side wall plug flat horizontal plug-in type, transitional brick oblique cutting using electric energy as heat source
Bottom straight cutting is top-insertion type what angle-inserting type, top were inserted into, is all to carry out indirect resistance radiant heating.Tank furnace is directly used in kiln
Glass for electrode liquid makees heating resistor, and glass metal is made to generate heat, and controls temperature schedule by adjusting electrical power.It is national in recent years right
The control pay attention to day by day of environmental pollution, the full battery kiln thermal efficiency is high, up to 85%, saves the energy, does not pollute, eliminates public hazards, have
Effect improves working condition, and its melted glass metal ingredient out is uniform, and product quality is high, is easy to implement automatically in production process
Change operation.Therefore, electric glass melting has at home and abroad obtained rapid popularization.
But the tank block of domestic traditional all-electric melting kiln generally will be because connecing with high-temperature glass liquid at 3 years or so for a long time
It touches and is etched, so that material qualitative change is poor, and then increases energy consumption, just mean that the glass furnace service life expires, traditional solution
Often blowing out power-off cooling discharging is removed kiln and is rebuild, corundum brick, electrode structure and other thermal insulation materials more renewed.
After kiln is removed, more intact tank block, bottom of pond Zhuan, Xuan brick etc. will be scrapped in kiln, considerably increase production cost, repair
It is long to manage the period.
Application No. is the Chinese invention patents of CN201310158180.1 to disclose modular repair All Electric Melting Furnace oven process, the invention
The design being segmented using pool wall on melting tank overcomes glass by optimizing the material of rationally setting each position refractory brick of melting furnaces
The liquid problem short to kiln seriously corroded, furnace service life extends kiln service life.
Summary of the invention
It is an object of the invention to overcome defect described in the prior art, to provide a kind of maintenance of all-electric melting kiln
Method, the method for maintaining can guarantee when all-electric melting kiln end-of-life without all shifting onto, it is only necessary to which part maintenance can be extensive
Multiple such as new, this method slows down corrosion of the glass metal to corundum brick significantly relatively, extends kiln service life, effectively reduces life
Produce cost, safety and environmental protection, energy-saving consumption-reducing.
To achieve the goals above, the invention provides the following technical scheme:
A kind of method for maintaining of all-electric melting kiln, including hot repair and cold repair, the hot repair the following steps are included:
(1) it shuts down the main electrode load of all-electric melting kiln, and electrode will be started and dog-hole is adjusted to the state of heat preservation,
When the temperature of upper pool wall is down to 95-105 DEG C, start to carry out local route repair to impaired tank block or transitional brick；
(2) observe and measure the length of molybdenum electrode in the all-electric melting kiln, according to the extent of damage of the molybdenum electrode into
Row replacement is continued to make it have preferable working condition；
(3) after the completion of molybdenum electrode maintenance, the main electrode load is adjusted to high pressure gear up to the temperature in upper storage reservoir
Degree rises to 850-900 DEG C, and main molten polarizing electrode is then added and does further power-up heating, until daily production status demand.
Preferably: the all-electric melting kiln includes Xuan Ding and furnace body, and the Xuan Ding is separably set to the top of the furnace body
Portion；The furnace body includes upper pool wall, lower pool wall and the transitional brick between the upper pool wall and the lower pool wall, it is described on
Pool wall is made of pool wall on the pool wall on upper first and second under, and the end of pool wall is located at the full electricity on described first
The lower section of molten silicate liquid level in melting furnace.
Further: the height ratio of pool wall is greater than 7:9, preferably 5:3 on pool wall and described second on described first.
Further: the local route repair of the impaired tank block is to carry out the corundum brick on described first on pool wall more
Repair is mended.
Preferably: the time of heat preservation described in step (1) is 6-8 days.
Preferably: in step (2), being headed into when the length of the molybdenum electrode is less than 58cm, when the molybdenum electrode
Length is maintained the statusquo when being equal to 60cm.
2, preferably: in step (3) when the temperature in the upper storage reservoir rises to 940-960 DEG C, first keeping the temperature 16-18h, and infuse
The swelling that meaning observation occurs, adjusts force-bearing situation using jackscrew in time；Until expansion terminates holding out against jackscrew, do further
Power-up heating, until daily production status demand.
Preferably: the cold repair the following steps are included:
S1, the main electrode load for shutting down all-electric melting kiln will be described after the glass metal cooling in the all-electric melting kiln
Glass metal is cleared up at away from the position the main electrode 5-10cm, carries out part to impaired tank block, transitional brick or leakage hole brick
It repairs；
S2, after the completion of local route repair, firing up is carried out as the heating energy using liquefied gas or natural gas, works as liter
Transformer is adjusted to high pressure gear during heat preservation to 16-18h is kept the temperature after 940-960 DEG C by temperature, attempts power-up heating, Ke Yijia
The heating energy is shut down after electricity, is heated up using power-up, until daily production status demand, is adjusted to suitable gear.
Preferably: local route repair described in step (1) and S1 is to be replaced impaired corundum brick, and in new corundum brick
Between insulating brick preset clearance with fill schmigel carry out it is be bonded.
Further: the distance in the gap is 5-10cm, preferably 5-6cm.
Compared with prior art, the invention has the following advantages:
All-electric melting kiln method for maintaining provided by the invention includes hot repair and cold repair, and specific hot repair and cold repair are according to full electricity
The trouble location of melting furnace and real operating condition carry out, and the present inventor is by research for many years and according to the electricity inside full shop kiln
It flows away to proposing to scientific rationality practicable all-electric melting kiln method for maintaining, the method for maintaining either hot repair or cold
It repairs and is not required to all-electric melting kiln carrying out dismounting reconstruction, only need to carry out local route repair and can restore under low consumption situation as new,
In addition, can go directly damaged part using method for maintaining of the present invention, maintenance efficiency is substantially increased.Specifically, this hair
It is bright when carrying out hot repair, although having shut down the main electrode load of all-electric melting kiln, still keeping the temperature of upper pool wall is 95-
105 DEG C, 950 DEG C of temperature of state under pond, the state can not only guarantee that maintenance personal repaired, but also can make complete after maintenance
Electric melting furnace is rapidly heated to daily production status demand, avoids the cooling of all-electric melting kiln whole or needs 20 after pushing over reconstruction
Build furnace and economic loss caused by the heating-up time within several days, in addition hot repair method provided by the present invention can solve 95% it is complete
Electric melting furnace fault state because, it is measuring according to the present invention it is demonstrated experimentally that in all-electric melting kiln receive glass metal corrode it is more serious
Position be successively tank block, transitional brick, dog-hole, furnace bottom, increased channel and material path, wherein tank block is especially located at pool wall
Silicate formation at tank block corrode the most serious, be secondly transitional brick and dog-hole, but small pool wall, furnace bottom and rising
The erosion in road can be ignored, and in addition the present inventor extrapolates the average life span of AZS corundum brick according to the actual conditions of erosion
It is 7 years or so, thus according to method for maintaining of the invention, directlys adopt hot repair replacement impaired tank block or transitional brick,
Record the length of molybdenum electrode in all-electric melting kiln simultaneously, be replaced or continue to according to the extent of damage of molybdenum electrode so that its
With preferable working condition, restore the all-electric melting kiln repaired as new, the all-electric melting kiln after maintenance is directly by main electricity
Pole isolating transformer be adjusted to high pressure gear until upper storage reservoir in temperature rise to 850-900 DEG C, then be added main molten polarizing electrode do into
One step power-up heating, until daily production status demand, is adjusted to suitable gear and accomplishes that Quick-return produces.
It is in addition of the invention that upper tank block can be changed to traditional monolith tiling method when repairing upper pool wall,
But the upper tank block of monolith is divided on arranged up and down first tank block on tank block and second, several pool walls on first
Brick forms pool wall on first, several on second tank block form pool wall on second, and on first the end of pool wall be located at it is described
The lower section of molten silicate liquid in all-electric melting kiln, with this in maintenance next time, it is only necessary to replace tank block on impaired first
, maintenance cost is again reduced, maintenance efficiency is improved；
Under normal circumstances, 95% damaged part is located on tank block and transitional brick in all-electric melting kiln, and the two
It is repaired using hot repair, efficiency is higher, certainly when damaged part is located at leakage hole brick, furnace bottom, especially leakage hole brick, then
It needs to remove when needing to clear up glass metal at away from the position main electrode 8-12cm using the method for cold repair, the cold repair method
Dog-hole changes the step of brick is repaired, and can so aoxidize to avoid molybdenum electrode, whens preventing from repairing leakage hole brick etc., damages molybdenum electrode,
After the completion of reparation, the present invention then uses liquefied gas or natural gas to carry out firing up as the heating energy, then using power-up
Heating is taken over to daily production status demand.Can so be rapidly heated all-electric melting kiln, and improve efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the furnace structure schematic diagram for cooperating Xuan Ding in one embodiment of the invention；
Fig. 2 is the furnace structure schematic diagram of unmated Xuan Ding in Fig. 1.
Description of symbols:
1, furnace body；11, upper pool wall；111, pool wall on first；112, pool wall on second；12, transitional brick；13, lower pool wall；
14, furnace bottom；15, dog-hole；16, increased channel；2, corundum brick；3, insulating brick；4, Xuan Ding；5, iron is held in the palm；6, jackscrew.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
It should be noted that upper pool wall, lower pool wall, dog-hole, increased channel have corundum brick and are wrapped in invention
Insulating brick composition on the outside of corundum brick.
Embodiment 1
The present invention provides the method for maintaining of pool wall upper in a kind of pair of all-electric melting kiln, comprising the following steps:
(1) as shown in Fig. 1 to 2, first on column plus iron 5 is held in the palm, a surname top 4 is separated with furnace body 1, furnace body 1 can torn open
When maintenance without put into again production a surname top 4 expense, accomplish once put into repeatedly be benefited, save the time, manpower and material resources and
Financial resources, wherein furnace body includes upper pool wall 11, lower pool wall 13 and the transitional brick 12 between upper pool wall 11 and lower pool wall 13, on
Pool wall 11 is made of pool wall 112 on the pool wall 111 on upper first and second under, and the end of pool wall 111 is located on first
The lower section of molten silicate liquid level in the all-electric melting kiln, the height ratio of pool wall 112 is not small on pool wall 111 and second on first
In 7:9, the preferred 5:3 of this embodiment；
(2) it shuts down the main electrode load of all-electric melting kiln, and electrode will be started and dog-hole 15 is adjusted to the shape of heat preservation
State keeps the temperature 7 days, and when the temperature of upper pool wall 11 is down to 100 DEG C, starts to carry out local route repair to impaired tank block, specifically
For the corundum brick 2 on first on pool wall 111 is carried out replacement repairing, while being reserved between new corundum brick 2 and insulating brick 3
The gap of 5cm is bonded with filling schmigel；
(3) length for observing and measuring molybdenum electrode in all-electric melting kiln is pushed up when the length of molybdenum electrode is less than 58cm
Enter, maintains the statusquo when the length of molybdenum electrode is equal to 60cm, to make it have preferable working condition；
(4) after the completion of molybdenum electrode maintenance, main electrode load is adjusted to high pressure gear until the temperature in upper storage reservoir rises to 900
DEG C, when the temperature in upper storage reservoir rises to 950 DEG C, 16h is first kept the temperature, and pay attention to observing kiln tank block, if it expands phenomenon,
Force-bearing situation is adjusted using jackscrew 6 in time；Until expansion terminates holding out against jackscrew 6, further power-up heating is done, until daily production
Duty requirements.
Embodiment 2
The present invention provides the method for maintaining of transitional brick 12 in a kind of pair of all-electric melting kiln, comprising the following steps:
(1) add support iron 5 first on column, a surname top 4 is separated with furnace body 1, it can be when tearing furnace body 1 open and repairing without again
The expense on investment production a surname top 4, accomplishes once to put into and repeatedly be benefited, save time, manpower and material resources and financial resources；
(2) it shuts down the main electrode load of all-electric melting kiln, and electrode will be started and dog-hole is adjusted to the state of heat preservation,
Heat preservation 6 days, and when the temperature of upper pool wall 11 is down to 95 DEG C, start to be replaced impaired upper tank block 11, transitional brick 12,
And between new corundum brick 2 and insulating brick 3 reserve 5cm gap with fill schmigel carry out it is be bonded；
(2) electrode water jacket and cleaning and maintenance of impaired transitional brick 12 are removed, wherein the water jacket or molybdenum electrode that damage need more
Renew, the water jacket safeguarded is put into transitional brick 12 and pre-buried good molybdenum electrode as required, it is desirable that molybdenum electrode maintains an equal level in transition
12 upper end of brick, and cullet are covered, cullet can melt to play the role of vacuum insulating oxygen at high temperature, to realize
Protect the effect of molybdenum electrode；
(3) after the completion of molybdenum electrode maintenance, main electrode load is adjusted to high pressure gear until the temperature in upper storage reservoir rises to 850
DEG C, when the temperature in upper storage reservoir rises to 940 DEG C, 16h is first kept the temperature, and pay attention to observing the swelling that kiln tank block occurs, and
Shi Caiyong jackscrew 6 adjusts force-bearing situation, until expansion terminates holding out against jackscrew 6, when upper storage reservoir temperature rises to 1200 DEG C, main electricity
Pole heads into 60cm and does further power-up heating main electrode is directly enabled after water jacket water flowing, until daily production status demand,
?.
Embodiment 3
The present invention provides the method for maintaining of pool wall 13 lower in a kind of pair of all-electric melting kiln, comprising the following steps:
(1) add support iron 5 first on column, a surname top 4 is separated with furnace body 1, it can be when tearing furnace body 1 open and repairing without again
The expense on investment production a surname top 4, accomplishes once to put into and repeatedly be benefited, save time, manpower and material resources and financial resources；
(2) the whole electrode loads for shutting down the big furnace of all-electric melting kiln, after the glass metal cooling in all-electric melting kiln, by glass
Glass liquid is cleared up at away from the position main electrode 8cm, starts to be replaced impaired lower tank block, and in new corundum brick 2 and is protected
The gap that 5cm is reserved between warm brick 3 is bonded with filling schmigel；
(3) length for observing and measuring molybdenum electrode in all-electric melting kiln is pushed up when the length of molybdenum electrode is less than 58cm
Enter, maintains the statusquo when the length of molybdenum electrode is equal to 60cm, to make it have preferable working condition；
(4) after the completion of molybdenum electrode maintenance, main electrode load is adjusted to high pressure gear, when the temperature in upper storage reservoir rises to 960
DEG C when, first keep the temperature 16h, and pay attention to observe kiln tank block, if it expands phenomenon, in time using jackscrew 6 adjust stress
Then situation does further power-up heating, until daily production status demand.
Embodiment 4
The present invention provides the method for maintaining in leakage hole 15 in a kind of pair of all-electric melting kiln, comprising the following steps:
(1) the whole electrode loads for shutting down the big furnace of all-electric melting kiln, after the glass metal cooling in all-electric melting kiln, by glass
Glass liquid is cleared up at away from the position main electrode 8cm, and carrying out local route repair to impaired 15 brick of leakage hole (specifically can be according to reality
Depending on)；Specially the corundum brick 2 being damaged in leakage hole 15 is replaced, and pre- between new corundum brick 2 and insulating brick 3
The gap of 5cm is stayed to be bonded to fill schmigel；
(2) after the completion of local route repair, firing up is carried out as the heating energy using liquefied gas, when being warming up to 950 DEG C
After keep the temperature 16h, transformer is adjusted to high pressure gear during heat preservation, power-up heating is attempted, the heating energy is shut down after being powered on,
It is heated up using power-up, until daily production status demand.
Embodiment 5
The present invention provides the method for maintaining of increased channel 16 in a kind of pair of all-electric melting kiln, comprising the following steps:
(1) it shuts down the main electrode load of all-electric melting kiln, and electrode will be started and dog-hole is adjusted to the state of heat preservation,
Heat preservation 5 days, and when the temperature of increased channel 16 is down to 100 DEG C, start to carry out local route repair to impaired increased channel brick, specially
The corundum brick 2 of increased channel 16 is subjected to replacement repairing, at the same between new corundum brick 2 and insulating brick 3 reserve 3cm gap with
Filling schmigel is bonded；
(3) observe and measure the length of main molten molybdenum electrode in all-electric melting kiln, when the length of molybdenum electrode is less than 58cm into
Row heads into, and maintains the statusquo when the length of molybdenum electrode is equal to 60cm, to make it have preferable working condition；
(4) after the completion of molybdenum electrode maintenance, main electrode load is adjusted to high pressure gear until the temperature in upper storage reservoir rises to 900
DEG C, when the temperature in upper storage reservoir rises to 950 DEG C, 16h is first kept the temperature, and pay attention to observing kiln tank block, if it expands phenomenon,
Force-bearing situation is then adjusted using jackscrew 6 in time；After expansion, then jackscrew 6 is held out against, further power-up heating is done, until daily
Production status demand.
Note: embodiment 1 and the plug flat the most suitable of embodiment 3 and top insertion electrode in the present invention, embodiment 2 are suitble to oblique cutting the most
Electrode.
The foregoing is merely a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of method for maintaining of all-electric melting kiln, which is characterized in that including hot repair and cold repair, the hot repair includes following step
It is rapid:
(1) it shuts down the main electrode load of all-electric melting kiln, and electrode will be started and dog-hole is adjusted to the state of heat preservation, to upper
When the temperature of pool wall is down to 95-105 DEG C, start to carry out local route repair to impaired tank block or transitional brick；
(2) length for observing and measuring molybdenum electrode in the all-electric melting kiln, is replaced according to the extent of damage of the molybdenum electrode
It changes or continues to make it have preferable working condition；
(3) after the completion of molybdenum electrode maintenance, the main electrode load is adjusted to high pressure gear up to the temperature liter in upper storage reservoir
To 850-900 DEG C, main molten polarizing electrode is then added and does further power-up heating, until daily production status demand.
2. method for maintaining according to claim 1, which is characterized in that the all-electric melting kiln includes Xuan Ding and furnace body, institute
State the top that Xuan Ding is separably set to the furnace body；The furnace body include upper pool wall, lower pool wall and be set to the upper pool wall
Transitional brick between the lower pool wall, the upper pool wall are made of pool wall on the pool wall on upper first and second under,
The end of pool wall is located at the lower section of molten silicate liquid level in the all-electric melting kiln on described first.
3. method for maintaining according to claim 2, which is characterized in that pool wall on pool wall and described second on described first
Height is than being greater than 7:9.
4. method for maintaining according to claim 2, which is characterized in that the local route repair of the impaired tank block is by institute
It states the corundum brick on first on pool wall and carries out replacement repairing.
5. method for maintaining according to claim 1, which is characterized in that the time of cooling described in step (1) is 6-8 days.
6. method for maintaining according to claim 1, which is characterized in that in step (2), when the length of the molybdenum electrode is less than
It is promoted when 58cm, is maintained the statusquo when the length of the molybdenum electrode is equal to 60cm.
7. method for maintaining according to claim 1, which is characterized in that when the temperature in the upper storage reservoir rises in step (3)
At 940-960 DEG C, 16-18h is first kept the temperature, and pays attention to observing the swelling that kiln tank block occurs, is adjusted in time using jackscrew
Force-bearing situation；Until expansion terminates holding out against jackscrew, further power-up heating is done, until daily production status demand.
8. method for maintaining according to claim 1, which is characterized in that the cold repair the following steps are included:
S1, the whole electrodes and corresponding electric heating system for shutting down all-electric melting kiln, with the glass metal in the all-electric melting kiln
After cooling, the glass metal is cleared up at away from the position the main electrode 5-10cm, to impaired tank block, transitional brick or leakage
Hole brick carries out local route repair；
S2, after the completion of local route repair, firing up is carried out as the heating energy using liquefied gas or natural gas, when being warming up to
16-18h is kept the temperature after 940-960 DEG C, transformer is adjusted to high pressure gear during heat preservation, power-up heating is attempted, after being powered on
The heating energy is shut down, is heated up using power-up, until daily production status demand.
9. method for maintaining according to claim 1, which is characterized in that local route repair described in step (1) and S1 is will be by
The corundum brick of damage is replaced, and between new corundum brick and insulating brick preset clearance with fill schmigel carry out it is be bonded.
10. method for maintaining according to claim 9, which is characterized in that the distance in the gap is 5-10cm, preferably 5-
6cm。
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| CN201910100403.6A CN109631588B (en) | 2019-01-31 | 2019-01-31 | A kind of method for maintaining of all-electric melting kiln |
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| CN201910100403.6A CN109631588B (en) | 2019-01-31 | 2019-01-31 | A kind of method for maintaining of all-electric melting kiln |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111253047A (en) * | 2020-04-07 | 2020-06-09 | 江苏亚太光学有限公司 | All-electric melting platinum-free gold crucible optical glass kiln |
| CN112815712A (en) * | 2021-02-07 | 2021-05-18 | 江西铜业集团(贵溪)冶金化工工程有限公司 | Local maintenance method for flash furnace bottom arch foot brick |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111253047A (en) * | 2020-04-07 | 2020-06-09 | 江苏亚太光学有限公司 | All-electric melting platinum-free gold crucible optical glass kiln |
| CN112923731A (en) * | 2021-02-06 | 2021-06-08 | 江西铜业集团(贵溪)冶金化工工程有限公司 | Local maintenance method for flash furnace bottom bricks |
| CN112815712A (en) * | 2021-02-07 | 2021-05-18 | 江西铜业集团(贵溪)冶金化工工程有限公司 | Local maintenance method for flash furnace bottom arch foot brick |
| CN113108607A (en) * | 2021-04-15 | 2021-07-13 | 嘉峪关宏电铁合金有限责任公司 | Quick repairing process for lining of silicomanganese ore heating furnace with super furnace age |
| CN115010346A (en) * | 2022-07-19 | 2022-09-06 | 中国建材国际工程集团有限公司 | Cold repair method and structure of main crown of glass melting furnace |
| CN115010346B (en) * | 2022-07-19 | 2023-10-03 | 中国建材国际工程集团有限公司 | Cold repair method and structure for glass melting furnace crown |
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