CN106542722B - Form the method for cleaning of furnace body material - Google Patents
Form the method for cleaning of furnace body material Download PDFInfo
- Publication number
- CN106542722B CN106542722B CN201610931587.7A CN201610931587A CN106542722B CN 106542722 B CN106542722 B CN 106542722B CN 201610931587 A CN201610931587 A CN 201610931587A CN 106542722 B CN106542722 B CN 106542722B
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- furnace
- shaping
- cleaning
- temperature
- glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
- C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
This disclosure relates to a kind of method for cleaning for forming furnace body material, the molding furnace body includes being sequentially connected the Muffle furnace connect, shaping furnace and annealing furnace up and down, overflow brick is provided in the Muffle furnace, glass metal in the overflow brick enters in the shaping furnace after the lower part of the overflow brick is converged to form glass substrate, the glass substrate in the annealing furnace under the action of traction mechanism to be made annealing treatment, the method for cleaning include: stop glass metal supply；Promote the temperature in the Muffle furnace；The temperature in the shaping furnace is reduced with curing glass liquid；The material in the shaping furnace is cleared up using dredging tool.Through the above technical solution, after Muffle stove heating, temperature field around overflow brick is stabilized not damaged, by the way that shaping furnace is cooled down, realize the solidification of sticky glass cream, the intracorporal glass blocks of furnace is cleared up using dredging tool, feed blocking in molding procedure is solved the problems, such as, guarantees the normal operation of production line.
Description
Technical field
This disclosure relates to glass substrate forming field, and in particular, to a kind of method for cleaning for forming furnace body material.
Background technique
In the production process of glass substrate, ingredient it is heats liquefied through kiln and platinum channel process clarification after, at
Overflow down draw is made into product in type furnace body.Production line need to periodically carry out large repairs, replacement molding furnace body and platinum channel etc., in order to open up
The upgrading of wide process bands and product needs to carry out molding procedure and platinum channel process during closing on overhaul frequent
Adjustment Tests.And frequently adjust and will lead to platinum channel process fusing exception or molding procedure feed blocking, glass cream can be
Gradually solidify under lower temperature in furnace body, cause test to be obstructed, and since the temperature of glass blocks is compared with high, hardness is big, clears up difficulty
Greatly, it is unable to operate normally glass substrate production line.
Summary of the invention
Purpose of this disclosure is to provide a kind of method for cleaning for forming furnace body material, this method is able to solve in molding procedure
The problem of feed blocking, effectively removes the intracorporal glass blocks of furnace, guarantees the normal operation of production line.
To achieve the goals above, the disclosure provides a kind of method for cleaning for forming furnace body material, the molding furnace body packet
It includes and is sequentially connected the Muffle furnace connect, shaping furnace and annealing furnace up and down, overflow brick, the overflow brick are provided in the Muffle furnace
Interior glass metal enters in the shaping furnace after the lower part of the overflow brick is converged to form glass substrate, the glass substrate
Pull is formed and is made annealing treatment, the connection of the shaping furnace and annealing furnace under the action of traction mechanism in the annealing furnace
Place is provided with partition, and the gap for allowing the glass substrate to pass through is formed on the partition and remains warm in each section of furnace body
The stabilization of field is spent, the method for cleaning includes: to stop glass metal supply；Promote the temperature in the Muffle furnace；It is described fixed to reduce
Temperature in type furnace is with curing glass liquid；The material in the shaping furnace is cleared up using dredging tool.
Optionally, the step of temperature promoted in the Muffle furnace includes the heater for increasing the Muffle furnace
Power, so that temperature is maintained at 1100 DEG C -1200 DEG C.
Optionally, the temperature reduced in the shaping furnace includes reducing the sizing with the step of curing glass liquid
The heater power of furnace is so that temperature is maintained at 400 DEG C -500 DEG C.
Optionally, glass metal is formed by curing glass cream in the shaping furnace, and the shaping furnace is from top to bottom divided into fixed
2nd area of mono- area Xing Lu and shaping furnace, the temperature reduced in the shaping furnace includes with the step of curing glass liquid, when described
When the glass cream being formed in furnace body is less than the 1/2 of furnace body volume, the power of two area's heater of shaping furnace is reduced, and keep
The heater in one area of shaping furnace is opened；When the glass cream in the sizing furnace body is greater than the 1/2 of furnace body volume, close
The heater in 2nd area of shaping furnace, and the heater in one area of shaping furnace is kept to open.
Optionally, the sequence for closing the heater in 2nd area of shaping furnace is from bottom to top.
Optionally, the step of the temperature reduced in the shaping furnace is with curing glass liquid and described using dredging work
Between the step of tool clears up the material in the shaping furnace, the method for cleaning further includes removing the traction mechanism,
To expose the installing port of the traction mechanism；The described the step of material in the shaping furnace is cleared up using dredging tool
Including carrying out the cleaning of material by the installing port of the traction mechanism.
Optionally, described the step of being cleared up using dredging tool the material in the shaping furnace includes passing through institute
The observation panel for stating shaping furnace carries out the cleaning of material.
Optionally, the temperature reduced in the shaping furnace includes closing the annealing with the step of curing glass liquid
The heater of furnace.
Optionally, the step of temperature promoted in the Muffle furnace and the temperature reduced in the shaping furnace with
The step of curing glass liquid, carries out simultaneously.
Optionally, described to dredge in described the step of being cleared up using dredging tool the material in the shaping furnace
Leading tool is pneumatic pick.
Through the above technical solutions, the temperature field around overflow brick, which is stabilized, makes overflow brick not after Muffle stove heating
It is damaged, by the way that shaping furnace cools down, realizes the solidification of sticky glass cream, the intracorporal glass blocks of furnace is carried out using dredging tool
Cleaning, solves the problems, such as feed blocking in molding procedure, guarantees the normal operation of production line.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the flow chart of one illustrative embodiments of method for cleaning for the molding furnace body material that the disclosure provides；
Fig. 2 is the flow chart of the method for cleaning another exemplary embodiment for the molding furnace body material that the disclosure provides；
Fig. 3 is the structural schematic diagram for the molding furnace body that the disclosure provides.
Description of symbols
1 overflow brick, 2 Muffle furnace
3 shaping furnace, 31 observation panel
4 partition, 5 annealing furnace
6 glass substrate of installing port of 51 traction mechanisms
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " is typically referred to corresponding
It is defined on the basis of the drawing of attached drawing, " inside and outside " refers to the inner and outer of corresponding component profile.
In the molding procedure of glass substrate, as shown in figure 3, molding furnace body is constructed using segmented, including from top to bottom
It is sequentially connected the Muffle furnace 2 connect, shaping furnace 3 and annealing furnace 5, overflow brick 1 is provided in Muffle furnace 2, Muffle furnace 2 is mainly used for
The temperature field around overflow brick 1 is maintained, keeps the performance of overflow brick 1 to stablize, and the glass metal material for supplying platinum channel reaches
To suitable overflow down draw temperature, the translateral smooth side of glass metal stream in 1 upper grooves of overflow brick, in overflow brick 1
Lower part enters after converging to form glass substrate 6 in shaping furnace 3, shape under the action of traction mechanism in annealing furnace 5 of glass substrate 6
It is made annealing treatment at suitable thickness of glass substrate, and in annealing furnace 5, is answered with eliminating the remnants in formed glass substrate 6
Power, stable dimensions reduce deformation and crackle tendency, the glass substrate 6 to be conformed to quality requirements.
Based on above-mentioned molding procedure, when platinum channel process melts exception or molding procedure blocks, such as Fig. 1 institute
Show, the disclosure provides a kind of method for cleaning for forming furnace body material, which includes: S101 step, stops glass metal and supplies
It answers, avoids constantly thering is glass metal to pour in shaping furnace 3；S102 step promotes the temperature in Muffle furnace 2, compensates 2 furnace body of Muffle furnace
Interior temperature field；S103 step reduces the temperature in shaping furnace 3 with curing glass liquid, is convenient to clean；Wherein, in S102 step
The temperature for promoting Muffle furnace 2 also can be avoided when carrying out material cleaning, and temperature is scattered and disappeared excessively, impact to overflow brick 1.
S105 step clears up the material in shaping furnace 3 using dredging tool.Through the above technical solutions, through Muffle stove heating
Afterwards, glass metal does not end up at overflow brick surface, and guarantees that overflow brick is not scattered and disappeared by sizing furnace temperature and influenced, by by shaping furnace
Cooling is realized the glass cream solidification of blocking, is cleared up using dredging tool the intracorporal glass blocks of furnace, solve molding procedure
The problem of middle feed blocking, guarantees the normal operation of production line.
Wherein, it should be noted that the junction of shaping furnace 3 and annealing furnace 5 is provided with partition 4, is formed on partition 4 useful
In allowing the gap that passes through of glass substrate 6, during normal production, partition 4 is heat loss in order to prevent, and prevents shaping furnace 3
It is chaotic with the temperature field of annealing furnace 5, guarantee that each section of furnace body temperature is stablized in a certain range, but works as platinum channel process
When fusing exception or molding procedure block, the generation of partition 4 is unfavorable for negative interaction of the material by furnace body, shows as glass metal
Occur the short time in wave gush it is lower after, formed the higher glass cream of viscosity be deposited on partition 4, about occupy shaping furnace 3
The space of half, since breaking tool cannot be used to clear up sticky material, partition 4 causes larger resistance by furnace body to material
Hinder, material is caused to be not easily cleaned.And blocking material caused by solving partition 4 can be very good not using embodiment of the present disclosure
The problem of easy to clean.
Specifically, in embodiment of the present disclosure, S102 promoted Muffle furnace 2 in temperature the step of include, increase horse
The not power of the heater of furnace 2 is higher than the intracorporal temperature of furnace and usually produces so that temperature is maintained at 1100 DEG C -1200 DEG C
Temperature for heating the glass metal on 1 surface of overflow brick, and guarantees the normal use of overflow brick 1.S103 is reduced in shaping furnace 3
Temperature include with the step of curing glass liquid, reduce shaping furnace 3 heater power so that temperature is maintained at 400 DEG C -500
DEG C, it should be noted that in molding procedure, glass metal is formed by curing glass cream after entering in shaping furnace 3, and shaping furnace 3 is by upper
It can be divided into 2nd area of one area of shaping furnace and shaping furnace under, and multiple heaters are distributed with, when the intracorporal glass cream of 3 furnace of shaping furnace
Less than furnace body volume 1/2 when, the power of the heater in 2nd area of shaping furnace can be reduced, and keep the heater in one area of shaping furnace
It opens, to reduce the further curing glass cream of temperature, and must assure that the heater that cannot close one area of shaping furnace, to prevent fastening
Heat loss in type furnace 3 is excessive, influences the characteristic of Muffle furnace overflow brick 1；When the intracorporal glass cream of 3 furnace of shaping furnace is greater than furnace body
Volume 1/2 when, at this point, closing the heater in 2nd area of shaping furnace, to accelerate glass cream cooling and then be convenient to clean, and still need to protect
Hold the unlatching of one area's heater of shaping furnace.Since glass cream itself also gives out higher heat, i.e. glass cream distributes heat and determines
The summation of 3 heater of type furnace heating heat need to maintain certain temperature, wherein the sequence that 2nd area of shaping furnace closes heater is certainly
On down.
Further, in embodiment of the present disclosure, to accelerate the cured speed of glass metal, and to guarantee shaping furnace 3
Interior glass blocks further hardens at low temperature, and convenient for the broken of glass blocks, easy cleaning goes out furnace body, and S103 reduces shaping furnace 3
Interior temperature can also include closing the heater of annealing furnace 5 with the step of curing glass liquid.In addition, in order to guarantee glass metal
Entered in shaping furnace 3 by 1 surface overflow of overflow brick and solidified immediately, S102 promoted Muffle furnace 2 in temperature the step of and S103 drop
Temperature in low shaping furnace 3 can carry out simultaneously the step of curing glass liquid.
Wherein, traction mechanism is set in annealing furnace 5, to glass substrate 6 play the role of drop-down it is molding, traction mechanism exists
Biggish space is occupied in annealing furnace 5.For the ease of by cured glass blocks by being removed in furnace body, as shown in Fig. 2, as this
Disclosed another exemplary embodiment reduces the step of temperature in shaping furnace 3 is with curing glass liquid in S103 and S105 is adopted
Between the step of being cleared up with dredging tool the material in shaping furnace 3, method for cleaning can also include that S104 removes traction
The step of mechanism, to expose the installing port 51 of traction mechanism, that is, S105 carries out the material in shaping furnace 3 using dredging tool
The step of cleaning includes the cleaning of material being carried out by the installing port 51 of traction mechanism, from installing port 51 to the gap side of partition 4
It is dredged to cured glass blocks, falls glass blocks by the gap of partition 4, complete the scale removal process of material in furnace.Separately
Outside, the installing port 51 for exposing traction mechanism accelerates gas exchanges in furnace and extraneous, cooling and sizing to annealing furnace 5
The solidification of glass metal also can play a role in furnace 3.
In addition, the observation panel 31 for observing situation in furnace is formed in shaping furnace 3 in embodiment of the present disclosure,
For convenience of the cleaning of material in furnace, S105 using dredging tool the material in shaping furnace 3 is cleared up the step of can also wrap
It includes, the cleaning of material is carried out by the observation panel 31 of shaping furnace 3, segment glass block can also be accelerated by taking out in observation panel 31
Block the cleaning of material.
Wherein, in embodiment of the present disclosure, since the hardness of glass blocks is very high, in S105 using dredging tool to fixed
In the step of material in type furnace 3 is cleared up, the tool of dredging can be pneumatic pick, the hand-held pneumatic pick with long drill rod of operator
The intracorporal material of furnace is crushed by the installing port 51 of observation panel 31 and traction mechanism, by point and face, glass blocks is integrally broken
It is broken into scattered bulk, and pneumatic pick provides power by compressed gas, crushing effect is preferable, and safety and stability.In other implementations
In mode, it can also be dredged using tools such as iron rod, steel pipe, rock drill, electric drills.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (10)
1. a kind of method for cleaning for forming furnace body material, the molding furnace body includes being sequentially connected the Muffle furnace (2) connect up and down, determining
Type furnace (3) and annealing furnace (5), the Muffle furnace (2) is interior to be provided with overflow brick (1), and the glass metal in the overflow brick (1) exists
The lower part of the overflow brick (1) enters in the shaping furnace (3) after converging to be formed glass substrate (6), the glass substrate (6)
Pull is formed and is made annealing treatment, the shaping furnace (3) and annealing furnace under the action of the annealing furnace (5) interior traction mechanism
(5) junction is provided with partition (4), and the gap for allowing the glass substrate (6) to pass through is formed on the partition (4)
And maintain the temperature field of each section of furnace body, which is characterized in that the method for cleaning includes:
Stop glass metal supply；
Promote the temperature in the Muffle furnace (2)；
The temperature in the shaping furnace (3) is reduced with curing glass liquid；
The material in the shaping furnace (3) is cleared up using dredging tool.
2. the method for cleaning of molding furnace body material according to claim 1, which is characterized in that described to promote the Muffle furnace
(2) the step of temperature in includes the power for increasing the heater of the Muffle furnace (2) so that temperature be maintained at 1100 DEG C-
1200℃。
3. the method for cleaning of molding furnace body material according to claim 1, which is characterized in that described to reduce the shaping furnace
(3) temperature in includes reducing the heater power of the shaping furnace (3) so that temperature is kept with the step of curing glass liquid
At 400 DEG C -500 DEG C.
4. the method for cleaning of molding furnace body material according to claim 3, which is characterized in that glass metal is in the shaping furnace
(3) it is formed by curing glass cream in, the shaping furnace (3) is from top to bottom divided into 2nd area of one area of shaping furnace and shaping furnace, the drop
Temperature in the low shaping furnace (3) includes with the step of curing glass liquid, when the intracorporal glass cream of the shaping furnace (3) furnace is small
When the 1/2 of furnace body volume, the power of two area's heater of shaping furnace is reduced, and keeps the heater in one area of shaping furnace
It opens；When the intracorporal glass cream of the shaping furnace (3) furnace is greater than the 1/2 of furnace body volume, adding for 2nd area of shaping furnace is closed
Hot device, and the heater in one area of shaping furnace is kept to open.
5. the method for cleaning of molding furnace body material according to claim 4, which is characterized in that close 2nd area of shaping furnace
Heater sequence be from bottom to top.
6. the method for cleaning of molding furnace body material according to claim 1, which is characterized in that reduce the sizing described
Temperature in furnace (3) is to carry out the material in the shaping furnace (3) with the use dredging tool the step of curing glass liquid
Between the step of cleaning, the method for cleaning further includes removing the traction mechanism, to expose the installing port of the traction mechanism
(51)；
Described the step of being cleared up using dredging tool the material in the shaping furnace (3) includes passing through the dragger
The installing port (51) of structure carries out the cleaning of material.
7. the method for cleaning of molding furnace body material according to claim 1 or 6, which is characterized in that described using dredging work
The step of tool clears up the material in the shaping furnace (3) includes being carried out by the observation panel (31) of the shaping furnace (3)
The cleaning of material.
8. the method for cleaning of furnace body material is formed described in any one of -3 according to claim 1, which is characterized in that the drop
Temperature in the low shaping furnace (3) includes the heater for closing the annealing furnace (5) with the step of curing glass liquid.
9. the method for cleaning of furnace body material is formed described in any one of -6 according to claim 1, which is characterized in that described to mention
The step of rising the temperature in the Muffle furnace (2) and the temperature reduced in the shaping furnace (3) are with the step of curing glass liquid
Suddenly it carries out simultaneously.
10. the method for cleaning of molding furnace body material according to claim 1, which is characterized in that described using dredging work
In the step of tool clears up the material in the shaping furnace, the dredging tool is pneumatic pick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610931587.7A CN106542722B (en) | 2016-10-24 | 2016-10-24 | Form the method for cleaning of furnace body material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610931587.7A CN106542722B (en) | 2016-10-24 | 2016-10-24 | Form the method for cleaning of furnace body material |
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| Publication Number | Publication Date |
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| CN106542722A CN106542722A (en) | 2017-03-29 |
| CN106542722B true CN106542722B (en) | 2019-03-12 |
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| CN201610931587.7A Active CN106542722B (en) | 2016-10-24 | 2016-10-24 | Form the method for cleaning of furnace body material |
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| CN115196860A (en) * | 2022-07-18 | 2022-10-18 | 河北光兴半导体技术有限公司 | Broken plate processing method and device in glass production |
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| CN202430110U (en) * | 2011-12-29 | 2012-09-12 | 彩虹集团公司 | Device for controlling forming temperature field of plate glass |
| JP2013212943A (en) * | 2012-03-30 | 2013-10-17 | Avanstrate Inc | Method for manufacturing glass substrate for flat panel display |
| CN202785966U (en) * | 2012-07-09 | 2013-03-13 | 彩虹显示器件股份有限公司 | Device for controlling sheet glass mold temperature field |
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Denomination of invention: Method for cleaning materials in moulding furnace body Effective date of registration: 20200713 Granted publication date: 20190312 Pledgee: Beijing State Owned Financial Leasing Co., Ltd Pledgor: WUHU TUNGHSU PHOTOELECTRIC SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2020990000738 |
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