KR101406576B1 - Heat treat apparatus for tempering a thin glass - Google Patents

Heat treat apparatus for tempering a thin glass Download PDF

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Publication number
KR101406576B1
KR101406576B1 KR1020130024588A KR20130024588A KR101406576B1 KR 101406576 B1 KR101406576 B1 KR 101406576B1 KR 1020130024588 A KR1020130024588 A KR 1020130024588A KR 20130024588 A KR20130024588 A KR 20130024588A KR 101406576 B1 KR101406576 B1 KR 101406576B1
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KR
South Korea
Prior art keywords
air
furnace
slow cooling
outside
blower
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KR1020130024588A
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Korean (ko)
Inventor
김한곤
정숙자
김은식
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김한곤
김은식
정숙자
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Priority to KR1020130024588A priority Critical patent/KR101406576B1/en
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Publication of KR101406576B1 publication Critical patent/KR101406576B1/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00—Tempering or quenching glass products
    • C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

The present invention relates to a thin plate glass reinforced heat treatment apparatus having a slow cooling furnace equipped with an air stirring and exhausting means, wherein the thin plate glass adhered to the glass loading table is preheated, chemically strengthened, The outside air or the circulating air is introduced into the gradual cooling path (cooling path) of the heat treatment apparatus to eliminate the temperature deviation in the gradual cooling path through the agitation and exhaust means provided in the gradual cooling path, and to easily adjust the temperature for raising and lowering the temperature in a short time A thin glass reinforced heat treatment apparatus composed of a preheating furnace, a chemical strengthening furnace, a slow annealing furnace and a cleaning furnace for preheating, chemical strengthening, slow cooling (cooling) The thin glass sheet is subjected to a tempering treatment through a chemical strengthening furnace, A plurality of heaters are arranged in a flat arrangement in the horizontal direction and the outside air or the circulating air is introduced through a plurality of inflow dampers formed on the upper side slow cooling wall of the heater so as to be openable and closable, The blower is connected to an inflow damper through an air inflow path, and external air or internal circulating air introduced through the inflow damper is supplied to the upper side of the heater through a stirring blower, Side blower so that the air heated by the heater is forcibly transferred to the outside of the slow cooling furnace, and a blower for exhausting is provided on the outside of the other side of the slow cooling furnace, A plurality of discharge dampers, which are openably and closably connected to each other, are connected to each other through an air discharge path, Is configured such that the stirring action of the air-generated ring.

Description

TECHNICAL FIELD [0001] The present invention relates to a heat treatment apparatus for tempering a thin glass having a slow cooling furnace equipped with air agitation and exhaust means,

[0001] The present invention relates to a thin glass reinforced heat treatment apparatus, and more particularly to a thin glass reinforced heat treatment apparatus in which a thin plate glass adhered to a glass table is subjected to preheating, chemical strengthening, A slow cooling furnace equipped with an air agitating and exhausting means for facilitating the temperature control for raising and lowering the temperature in a short time by introducing outside air or circulating air into the soft annealing furnace through agitation and exhaust means provided in the annealing furnace, Lt; RTI ID = 0.0 > a < / RTI >

Generally, a heat treatment apparatus is installed to heat a glass used for a cell, a PC, a PDA, a navigation, a construction, and various industrial glasses by a chemical strengthening method. Examples of the heat treatment apparatus include a preheating furnace, a chemical strengthening furnace, A supporting roller provided on the rail, a traveling wheel, and a conveying carriage to preheat, heat, and cool the glass in a sequential process.

The usual chemical strengthening method of glass is to add potassium nitrate (KNO 3 ), which is a heat treatment powder, in the chemical strengthening furnace so that an ion exchange reaction with sodium ion (Na + ) having a small ion radius distributed on the surface is made to strengthen the glass surface Potassium ions (K + ) with a large ionic radius of potassium nitrate solution (KNO 3 ) which is liquefied after filling are substituted with each other to form a pressure stress layer by ion exchange reaction on the glass surface to strengthen the surface density of glass will be.

In order to raise the temperature of the air in the annealing furnace of the thin plate glass, which is a post-process of the chemical strengthening furnace for the heat treatment of the glass by the chemical strengthening method, and then lower the temperature to an appropriate temperature, conventionally, the operation of the heating means is stopped, Some of them have been used by adopting a natural cooling method such as opening a part and lowering the temperature.

As a result, it takes a long time to raise and lower the temperature of the air in the annealing furnace to an appropriate temperature, which results in a decrease in work efficiency.

Patent No. 10-0967799

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a thin glass-reinforced heat treatment apparatus, (Cooling path) for introducing outside air or circulating air into the cooling path to remove the temperature variation in the cooling path through agitation and exhaust means provided in the cooling path, and to adjust the temperature for raising and lowering the temperature in a short time, The present invention has been made to solve the above-mentioned problems occurring in the prior art.

In order to achieve the above-mentioned object, the present invention provides a method of manufacturing a glass laminate, comprising the steps of: preheating, chemical strengthening, slow cooling (cooling) A plurality of heaters are arranged in a horizontal direction in a longitudinal direction so as to be symmetrical with respect to the inner sides of the annealing furnace which is cooled after the tempered heat treatment of the thin plate glass through the chemical strengthening furnace, An agitating blower is connected to an inflow damper through an air inflow path on the outside of one side of the slow cooling furnace so that outside air or internal circulating air is introduced through a plurality of inflow dampers formed on the upper side of the slow cooling wall of the heater , External air or internal circulating air introduced through the inflow damper is supplied to the upper side of the heater through a stirring blower, A blower for blowing air is provided outside the other side of the slow cooling furnace such that the air heated by the heater is forcedly transferred to the outside of the slow cooling furnace through the lower side of the heater, And a plurality of discharge dampers, which are openably and closably provided on the upper side slow cooling furnace, are connected to each other through an air discharge path, whereby stirring action of outside air or circulating air in the slow cooling furnace is generated. A thin glass reinforced heat treatment apparatus having a slow cooling furnace equipped with means.

The thin glass reinforced heat treatment apparatus having the slow cooling furnace having the air agitation and exhaust means according to the present invention has a favorable structure for adjusting the temperature inside the slow cooling furnace to a proper temperature according to the temperature change depending on the size and thickness of the thin glass plate Thereby reducing the temperature variation inside the annealing furnace and making it possible to reach the proper temperature as quickly as possible.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an overall side view of a thin plate glass-reinforced heat treatment apparatus having a slow cooling furnace equipped with air agitation and exhaust means according to the present invention;
2 and 3 are side views of the stirrer blower side according to the present invention,
4 and 5 are side views of the blower for exhaust according to the present invention,
6 is a side view showing the configuration of a collection cradle according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 6, a thin glass reinforced heat treatment apparatus having a slow cooling furnace equipped with an air agitating and evacuating means according to the present invention is characterized in that a thin glass plate placed on a glass table 7 is moved by a moving truck 5 The preheating furnace 1, the chemical strengthening furnace 2, the annealing furnace 3, and the washing furnace 4 are installed to perform preheating, chemical strengthening, slow cooling (cooling) and washing treatment in a sequential process.

Among the preheating furnace 1, the chemical strengthening furnace 2, the annealing furnace 3 and the washing furnace 4, in particular, in the chemical strengthening furnace 2, sodium borohydride Potassium nitrate (KNO 3 ), which is a heat treatment powder, is charged in the chemical strengthening furnace 2 so that an ion exchange reaction with ions (Na + ) is generated.

The potassium nitrate (KNO 3 ) is liquefied by the heating means provided in the chemical strengthening furnace (2), and the ionic radius (Na + ) of the potassium nitrate (KNO 3 ) solution This large potassium ion (K + ) is substituted for each other, and at this time, a pressure stress layer by ion exchange reaction is formed on the glass surface, and a tempered glass having a large surface density is formed.

2 and 3, the preheating furnace 1 is formed by preheating, chemically strengthening, slow cooling (cooling), cleaning, and strengthening the thin plate glass seated on the glass table 7 by a sequential process, (2), a gradual cooling furnace (3), and a cleaning furnace (4), characterized in that the thin glass sheet is mirror-refracted at both inner sides of the annealing furnace (3) And a plurality of inflow dampers 30 formed on the wall of the upper side slow cooling furnace 3 of the heater 20 so as to be selectively opened and closed as required, The stir blower 40 is connected to the inflow damper 30 through the air inflow path 42 on the outside of one side of the slow cooling path 3 so that the outside air or the circulating air is introduced through the inflow damper 30 ) Through the agitating blower (40) to the outside air or the inside circulating air introduced through the agitating blower Is configured to install to the air input 50 to be fed to the upper side of (20) through the plurality of heaters 20 are arranged longitudinal movement to the lower side.

The slow cooling furnace 3 is a device for tempering the thin plate glass through the chemical strengthening furnace 2 and gradually cooling down the temperature of the thin plate glass. The agitating action of the external air or the internal circulating air in the annealing furnace 3 The stress and flatness are stabilized on the surface of the thin plate glass, while the stress caused by the cooling is reduced in the thin plate glass.

At this time, the speed of the agitator blower 40 may be adjusted in order to adjust the temperature drop in the slow cooling furnace 3.

As shown in FIGS. 4 and 5, in order to discharge the heated air that has been moved to the upper side in the slow cooling path 3 by cooling the heater 20, the air passes through the lower side of the heater 20, Cooling blower 3 to the outer side of the slow cooling furnace 3 so that the air heated by the heating coil 20 is forcibly transferred to the outside of the slow cooling furnace 3, And is connected to a plurality of discharge dampers (70) selectively openable and closable as needed through an air discharge path (80).

At this time, as described above, the heated air that has been cooled by the heater 20 and moved to the upper side in the slow cooling path 3 may be discharged to the outside. However, the heated air flows again through the inflow damper 30, So that it can be used.

As a result of the above-described structure, the stirring operation of the outside air or the circulating air inside the slow cooling furnace 3 occurs.

6, in order to collect glass fragments or the like generated during the process of cooling the thin plate glass placed on the glass mounting table 7 in the inner bottom portion of the slow cooling path 3, . At this time, a plurality of wheels 92 are installed on the lower portion of the collection support 90 to facilitate movement.

By the provision of the collection support 90, the air circulation inside the slow cooling furnace 3 due to the maintenance of the cleanliness inside the slow cooling furnace 3 and the stacking of the thin plate glass is maintained. The glass pieces or the like broken in the gradual cooling path 3 fall down to the lower side. If the glass pieces fall into the bottom of the gradual cooling path 3, the space inside the gradual cooling path 3 is reduced, Which will adversely affect product production. Therefore, by providing the collection stand 90 for periodic cleaning management, it is possible to smooth the production of the thin plate glass.

In addition, since the wheel 92 is attached to the lower portion of the collection stand 90, it can be easily pushed out of the slow cooling path 3 during cleaning and can be reliably operated. At this time, it is preferable to install a cleaning door (not shown) on the lower side of the slow cooling path 3 so as to move the collection stand 90 to the outside.

3: slow cooling furnace 20: heater
30: Inflow damper 40: Blower for stirring
42: air inlet line 50: air inlet line
60: blower for blowing air 70:
80: discharge damper

Claims (4)

(1), the chemical strengthening furnace (2), the annealing furnace (3) and the cleaning furnace (3) for the purpose of preheating, chemical strengthening, slow cooling 4), characterized in that:
A plurality of heaters 20 are horizontally longitudinally arranged symmetrically on both sides of the inner side of the annealing furnace 3 which is cooled after the tempered heat treatment of the thin plate glass through the chemical strengthening furnace 2,
The outer wall of the upper cooling passage 3 of the heater 20 is connected to the outside of one side of the slow cooling passage 3 so that the outside air or the circulating air is introduced through a plurality of inflow dampers 30, The blower 40 is connected to the inflow damper 30 through the air inflow path 42,
The outside air or the circulating air introduced through the inflow damper 30 is supplied to the upper side of the heater 20 through the agitating blower 40 and passes through the plurality of heaters 20 arranged in the longitudinal direction to be moved to the lower side The air introducing path 50 is provided so as to be so arranged,
The blower 60 for blowing air is blown out to the outside of the other side of the cooler 3 so that the air heated by the heater 20 through the lower side of the heater 20 is forcibly transferred to the outside of the slow cooling furnace 3 (3) of the upper cooling passage (3) of the upper cooling passage (20) by connecting to a plurality of discharge dampers (70) openably and closably formed through the air discharge passage (80) Wherein the agitating action is generated by the agitating and evacuating means.
The method according to claim 1,
A collection stand 90 is further provided at the inner bottom portion of the slow cooling furnace 3 for collecting non-products including glass fragments generated in the process of reinforcing heat treatment of the thin plate glass placed on the glass table 7 Characterized in that the annealing furnace is equipped with air agitation and exhaust means.
3. The method of claim 2,
And a plurality of wheels (92) are provided on the lower portion of the collection support (90) so as to be movable.
The method according to claim 2 or 3,
And a cleaning opening / closing door is provided on a lower side of the slow cooling path (3) so as to move the collection stand (90) to the outside. .
KR1020130024588A 2013-03-07 2013-03-07 Heat treat apparatus for tempering a thin glass KR101406576B1 (en)

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Application Number Priority Date Filing Date Title
KR1020130024588A KR101406576B1 (en) 2013-03-07 2013-03-07 Heat treat apparatus for tempering a thin glass

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210085620A (en) * 2019-12-31 2021-07-08 주식회사이화정공 Manufacturing device of high refractive glass beads for road marking

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990071351A (en) * 1998-02-09 1999-09-27 시마자키 기요시 Ventilator of environmental devices
KR20080024440A (en) * 2006-09-13 2008-03-18 에스펙 가부시키가이샤 Heat treatment apparatus
KR100866844B1 (en) 2008-04-29 2008-11-04 김한곤 Heat treat apparatus for tempering a thin glass

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990071351A (en) * 1998-02-09 1999-09-27 시마자키 기요시 Ventilator of environmental devices
KR20080024440A (en) * 2006-09-13 2008-03-18 에스펙 가부시키가이샤 Heat treatment apparatus
KR100866844B1 (en) 2008-04-29 2008-11-04 김한곤 Heat treat apparatus for tempering a thin glass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210085620A (en) * 2019-12-31 2021-07-08 주식회사이화정공 Manufacturing device of high refractive glass beads for road marking
KR102288617B1 (en) * 2019-12-31 2021-08-11 주식회사이화정공 Manufacturing device of high refractive glass beads for road marking

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