CN109336363A - Glass melting process - Google Patents
Glass melting process Download PDFInfo
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- CN109336363A CN109336363A CN201811295758.7A CN201811295758A CN109336363A CN 109336363 A CN109336363 A CN 109336363A CN 201811295758 A CN201811295758 A CN 201811295758A CN 109336363 A CN109336363 A CN 109336363A
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- equal
- raw material
- furnace body
- electrode
- rifle
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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
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
-
- 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
-
- 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
- C03B5/235—Heating the glass
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- 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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a kind of glass melting process, implement the glass melting process using kiln, and the kiln includes: furnace body, and the furnace body is equipped with inlet port and outlet port；And burning rifle and electrode, the burning rifle are located on the furnace body, the electrode is located on the furnace body；The glass melting process is the following steps are included: close the discharge port, raw material is added into the furnace body by the feed inlet, heat is provided to the intracorporal raw material of the furnace using the burning rifle and the electrode, wherein within the unit time, the burning rifle to the heat that the raw material provides be R1, the electrode to the heat that the raw material provides is R2, the ratio between the R1 and the R2 are within a preset range.By utilize glass melting process according to an embodiment of the present invention, so as to improve glass production efficiency and product yield, eliminate bubble, striped the defects of, promoted glass consistency and quality, reduce energy consumption.
Description
Technical field
The present invention relates to glass arts, and in particular, to glass melting process.
Background technique
In the related art, it is melted in kiln for manufacturing the batch of glass, then completes the glass of fusing
Liquid is flowed into next procedure and is adjusted and forms.The effect that glass metal melts in kiln determines the quality of glass product.
Summary of the invention
The application is to be made based on inventor to the discovery of following facts and problem and understanding: the prior art is mentioned with increasing
The mode for producing the heat of the raw material of glass is supplied, to improve the production efficiency of glass.Therefore, those skilled in the art deposit
In technology prejudice, which causes those skilled in the art to ask in face of how to improve the production efficiency of glass this technology
When topic, it only will recognize that increase is supplied to the heat of the raw material for producing glass.
Inventor has found that the glass metal circulation of the intracorporal temperature field of the furnace of kiln and generation is not only after in depth studying
There is larger impact to the production efficiency of glass, and also have larger impact to the quality of glass, more especially for fusing viscosity
When high glass kind is with production capacity is promoted, this influence is more significant.
It is of the existing technology the purpose of the invention is to overcome the problems, such as, the glass melting side implemented using kiln is provided
Method.
To achieve the goals above, implement the glass melting process using kiln, the kiln includes: furnace body, described
Furnace body is equipped with inlet port and outlet port；And burning rifle and electrode, the burning rifle are located on the furnace body, the electrode is located at institute
It states on furnace body；The glass melting process is the following steps are included: close the discharge port, by the feed inlet to the furnace body
Interior addition raw material provides heat to the intracorporal raw material of the furnace using the burning rifle and the electrode, wherein within the unit time,
The burning rifle to the heat that the raw material provides be R1, the electrode to the heat that the raw material provides be R2, the R1 and institute
State the ratio between R2 within a preset range.
By utilizing glass melting process according to an embodiment of the present invention, so as to improve the production efficiency and production of glass
Product yield eliminates the defects of bubble, striped, the consistency for promoting glass and quality, reduces energy consumption.
Preferably, the furnace body has the first side wall and the second side wall opposite on first level direction and second
Opposite third side wall and the 4th side wall in horizontal direction, the feed inlet are located at the crown wall and first side wall of the furnace body
At least one of on, the discharge port is located on the bottom wall and at least one of second side wall of the furnace body, described
It burns rifle to be located at least one of the third side wall and the 4th side wall, the electrode is located at the third side wall and institute
It states on each of the 4th side wall, it is preferable that the burning rifle position is in the top of the electrode, it is preferable that the furnace body includes
Along multiple heating zones of first level direction arrangement, each heating zone is equipped at least one described burning rifle.
Preferably, the burning rifle includes the first burning rifle and second burns rifle, and the first burning rifle is located on the third side wall,
The second burning rifle is located on the 4th side wall；The electrode includes first electrode and second electrode, and the first electrode is set
On the third side wall, the second electrode is located on the 4th side wall.
Preferably, the glass melting process is the following steps are included: A) close the discharge port, by the feed inlet to
Raw material is added in the furnace body, provides heat to the intracorporal raw material of the furnace using the burning rifle；B) when the intracorporal original of the furnace
When the material position of material reaches the first preset value, start the electrode to provide heat to the intracorporal raw material of the furnace；C) continue to lead to
It crosses the feed inlet and raw material is added into the furnace body, increase the heat that the heat that rifle provides and electrode offer are provided
Amount, until the ratio between the R1 and the R2 are in the preset range；And D) it is in institute meeting the ratio between the R1 and the R2
Under conditions of stating in preset range, the heat that the burning rifle provides and the heat that the electrode provides are continued growing, when described
When the material position of the intracorporal raw material of furnace reaches the second preset value, stop that raw material is added, it is preferable that first preset value and described the
The ratio between two preset values are more than or equal to 0.2 and are less than or equal to 0.4, it is further preferred that first preset value is default with described second
The ratio between value is equal to 0.33.
Preferably, the glass melting process further comprises: E) stop be added raw material after, meet the R1 with it is described
Under conditions of the ratio between R2 is in the preset range, preset time is heated to the intracorporal raw material of the furnace, it is preferable that described pre-
If the time is -96 hours 24 hours, it is preferable that the glass melting process further comprises: F) to the intracorporal raw material of the furnace
After heating the preset time, the discharge port is opened to make glass metal outflow furnace body and to pass through the feed inlet to the furnace
Raw material is added in vivo.
Preferably, the step C) include: C-1) continue through the feed inlet raw material is added into the furnace body, increase
The heat that the heat and the electrode that the burning rifle provides provide, wherein the speedup for burning the heat that rifle provides is less than described
The speedup for the heat that electrode provides；And C-2) when the material position of the intracorporal raw material of the furnace reaches third preset value, the R1 with
The ratio between described R2 is in the preset range, it is preferable that the ratio between the third preset value and second preset value are more than or equal to
0.7 and less than 1, it is further preferred that the ratio between the third preset value and second preset value are more than or equal to 0.8 and are less than or equal to
0.9。
Preferably, after the material position of the intracorporal raw material of the furnace reaches second preset value, by the R1 and the R2
The sum of be maintained at the 4th preset value.
Preferably, the ratio between the R1 and the R2 be more than or equal to 0.5 and be less than or equal to 0.8, it is preferable that the R1 with it is described
The ratio between R2 is more than or equal to 0.55 and is less than or equal to 0.75, it is further preferred that the ratio between the R1 and the R2 more than or equal to 0.58 and
Less than or equal to 0.7, most preferably, the ratio between the R1 and the R2 are more than or equal to 0.63 and are less than or equal to 0.66.
Preferably, the burning rifle is using natural gas as fuel, the R1=V × Q × Kr, the R2=W × 3600KJ/KWh
× Ke, wherein V is the flow of natural gas, and Q is the calorific value of natural gas, and Kr is the heat that the raw material provides the natural gas
Absorptivity, W is the electrical power of the electrode, and Ke is the absorptivity for the heat that the raw material provides the electrode, 3600KJ/
KWh is the preset parameter value of electric energy and thermal energy conversion, it is preferable that Kr is more than or equal to 55% and is less than or equal to 75%, more preferably
Ground, Kr are more than or equal to 60% and are less than or equal to 70%, and most preferably, Kr is more than or equal to 62% and is less than or equal to 68%, it is preferable that
Ke is more than or equal to 75% and is less than or equal to 93%, it is further preferred that Ke is more than or equal to 85% and is less than or equal to 93%, most preferably
Ground, Ke are more than or equal to 88% and are less than or equal to 90%.
Preferably, under the conditions of isothermal and isobaric, the oxygen combustion volume ratio for burning rifle is (2-3): 1, it is preferable that the burning rifle
Oxygen combustion volume ratio be (2.3-2.7): 1, it is further preferred that it is described burn rifle oxygen combustion volume ratio be (2.45-2.55): 1, it is adjacent
Third of first heating zone in the feed inlet, adjacent three heating zones in three heating zones
The heating zone is adjacent to the discharge port, the burning rifle of first heating zone in adjacent three heating zones
The sum of fuel quantity be M1, the fuel quantity of the burning rifle of second heating zone in adjacent three heating zones
The sum of be M2, the sum of the fuel quantity of the burning rifle of third in the adjacent three heating zones heating zone is
M3, wherein 0.7≤M1/M2≤0.95,1.3≤(M1+M2)/M3≤2, it is preferable that 0.72≤M1/M2≤0.91,1.4≤(M1+
M2)/M3≤1.9, it is further preferred that 0.77≤M1/M2≤0.85,1.55≤(M1+M2)/M3≤1.75.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of kiln according to an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of kiln according to an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The present invention provides the glass melting process implemented using kiln 10.Below with reference to the accompanying drawings it describes real according to the present invention
Apply the kiln 10 of example.As depicted in figs. 1 and 2, kiln 10 according to an embodiment of the present invention includes furnace body 110, burns rifle 120 and electrode
130.Furnace body 110 is equipped with feed inlet 151 and discharge port 152, burns rifle 120 and is located on furnace body 110, electrode 130 is located at furnace body 110
On.
Glass melting process according to an embodiment of the present invention passes through feed inlet the following steps are included: closing discharge port 152
151 are added raw material into furnace body 110, provide heat using the raw material of rifle 120 and electrode 130 into furnace body 110 is burnt.Wherein, exist
In unit time, burn rifle 120 to the heat that the raw material provides be R1, electrode 130 to the heat that the raw material provides be R2, the R1 and
The ratio between the R2 is within a preset range.
Wherein, it burns rifle 120 to refer to the heat that the raw material provides: burning rifle 120 and distribute in the heat of (offer) by the raw material
The part of absorption；Electrode 130 refers to the heat that the raw material provides: electrode 130 distributes in the heat of (offer) to be inhaled by the raw material
The part of receipts.In other words, the heat which absorbs from the heat for burning the offer of rifle 120 is that R1, the raw material are provided from electrode 130
Heat in the heat that absorbs be R2.
In this application, which shall be understood in a broad sense, which not only includes being added to furnace body by feed inlet 151
Solid raw material in 110 also includes the raw material (glass metal) of the liquid in furnace body 110, i.e., turns after the solid raw material is heated
Become the raw material of liquid.
The application is to be made based on inventor to the discovery of following facts and problem and understanding: the prior art is mentioned with increasing
The mode for producing the heat of the raw material of glass is supplied, to improve the production efficiency of glass.Therefore, those skilled in the art deposit
In technology prejudice, which causes those skilled in the art to ask in face of how to improve the production efficiency of glass this technology
When topic, it only will recognize that increase is supplied to the heat of the raw material for producing glass.
Inventor has found that the glass metal circulation of the intracorporal temperature field of the furnace of kiln and generation is not only after in depth studying
There is larger impact to the production efficiency of glass, and also have larger impact to the quality of glass, more especially for fusing viscosity
When high glass kind is with production capacity is promoted, this influence is more significant.
Glass melting process according to an embodiment of the present invention by making the ratio between the R1 and the R2 within a preset range, so as to
To adjust the temperature field in furnace body 110 accurately, in time, stablize to generate ideal glass metal circulation, to establish glass metal
Flow regime.
Due to can produce glass metal circulation in furnace body 110, i.e., there are glass metal circulation in furnace body 110, therefore not only may be used
So that the fusing of glass metal is strengthened, to improve the melting efficiency of glass metal, and then the production efficiency of glass is improved, and
The glass metal in furnace body 110 can be made more uniform, more uniform, the defects of to eliminate the bubble in glass, striped, improved
The consistency and quality of glass stick more particularly to improve production efficiency and production capacity, the promotion fusing of the fusing higher glass of viscosity
Spend the quality and product yield of higher glass.
For example, can produce preceding circulation 161 and rear circulation 162 in furnace body 110, the foundation of preceding circulation 161 and rear circulation 162
And stabilization, it ensure that molten state of the glass metal in furnace body 110 and fusing effect, the molten of kiln 10 thus not only can be improved
Change efficiency and production efficiency, and the quality and product yield of glass can be improved.
Therefore, by utilizing glass melting process according to an embodiment of the present invention, so as to improve the production effect of glass
Rate and product yield eliminate the defects of bubble, striped, the consistency for promoting glass and quality, reduce energy consumption.
As depicted in figs. 1 and 2, in some embodiments of the invention, kiln 10 may include furnace body 110, burn rifle 120,
Electrode 130 and temperature detector 140.
Furnace body 110 can have the first side wall 111 and the second side wall 112 opposite on first level direction and
Opposite third side wall 113 and the 4th side wall 114 in two horizontal directions.Feed inlet 151 is located at crown wall and the first side of furnace body 110
On at least one of wall 111, discharge port 152 is located at least one of bottom wall and second side wall 112 of furnace body 110.Example
Such as, it can be equipped with feed inlet 151 on the first side wall 111, discharge port 152 can be equipped on the second side wall 112.
It burns rifle 120 to be located at least one of third side wall 113 and the 4th side wall 114, electrode 130 is located at third side wall
113 and the 4th on each of side wall 114.Burn the top that rifle 120 is located at electrode 130.Wherein, which can be with
Perpendicular to second horizontal direction.As shown by the arrow a in fig. 2, second horizontal direction is as shown in figure 1 in the first level direction
Shown in arrow B, shown in the arrow C of up and down direction as shown in figure 1.
Burning rifle 120 may include that the first burning rifle 121 and second burns rifle 122, and electrode 130 may include 131 He of first electrode
Second electrode 132.First burning rifle 121 is located on third side wall 113, and the second burning rifle 122 is located on the 4th side wall 114.First electricity
Pole 131 is located on third side wall 113, and second electrode 132 is located on the 4th side wall 114.Temperature detector 140 can be located at bottom wall
On 116.
Preferably, first burning rifle 121 can be it is multiple, second burning rifle 122 can be it is multiple, it is multiple first burn rifles 121 can
Be located on third side wall 113 at interval along the first level direction, multiple second burn rifle 122 can be along the first level side
To being located on the 4th side wall 114 at interval.First electrode 131 can be it is multiple, second electrode 132 can be it is multiple, it is multiple
First electrode 131 can be located on third side wall 113 at interval along the first level direction, and multiple second electrodes 132 can be with
It is located on the 4th side wall 114 at interval along the first level direction.
It is possible thereby to be uniformly heated the glass metal in furnace body 110, so as to so that kiln 10 structure more adduction
Reason.
It is further preferred that multiple first burning rifles 121 can equally spacedly be located at third side wall 113 along the first level direction
On, multiple second burning rifles 122 can be equally spacedly located on the 4th side wall 114 along the first level direction.Multiple first electrodes
131 can equally spacedly be located on third side wall 113 along the first level direction, multiple second electrodes 132 can along this first
Horizontal direction is equally spacedly located on the 4th side wall 114.It is possible thereby to it is uniformly heated the glass metal in furnace body 110, from
And the structure of kiln 10 can be made more reasonable.
As shown in Figure 1, each of the first burning rifle 121 and the second burning rifle 122 can be located at first electrode 131 and second
The top of each of electrode 132.It is possible thereby to keep the structure of kiln 10 more reasonable.
Glass melting process according to an embodiment of the present invention may comprise steps of:
A discharge port 152) is closed, raw material is added into furnace body 110 by feed inlet 151, using burning rifle 120 to furnace body 110
Interior raw material provides heat, so that the solid raw material is heated into liquid.
B) when the material position of the raw material in furnace body 110 reaches the first preset value, start electrode 130 so as into furnace body 110
Raw material provide heat.Solid original when the material position of the raw material in furnace body 110 reaches the first preset value, in furnace body 110
Most of melted by heat is expected at liquid, so that conductive energy, can star electrode 130 at this time, to produce using electrode 130
The raw material (glass metal) of raw heat liquid.
C it) continues through feed inlet 151 and raw material is added into furnace body 110, increase the heat and increase electricity for burning that rifle 120 provides
The heat that pole 130 provides, until the ratio between the R1 and the R2 are in the preset range.Since the raw material in furnace body 110 is more and more,
Therefore the heat that the heat that burning rifle 120 provides is more and more, electrode 130 provides is more and more.Wherein, the heat that rifle 120 provides is burnt
Amount refers to: burning the net quantity of heat that rifle 120 distributes；The heat that electrode 130 provides refers to: all heat that 130 electrical power of electrode generates
Amount.
D it) under conditions of meeting the ratio between the R1 and the R2 and being in the preset range, continues growing and burns what rifle 120 provided
Heat, the heat for continuing growing the offer of electrode 130 stop adding when the material position of the raw material in furnace body 110 reaches the second preset value
Enter raw material.Preferably, the ratio between first preset value and second preset value can be more than or equal to 0.2 and be less than or equal to 0.4.Thus
It can be further improved melting efficiency.It is further preferred that the ratio between first preset value and second preset value can be equal to 0.33.
Specifically, which can be 700 millimeters -1000 millimeters.
In one embodiment of the invention, the step C) may include:
C-1 it) continues through feed inlet 151 and raw material is added into furnace body 110, increase the heat and increase for burning that rifle 120 provides
The heat that electrode 130 provides.Wherein, the speedup for burning the heat that rifle 120 provides is less than the speedup for the heat that electrode 130 provides.By
This can make the ratio between the R1 and the R2 move closer to the preset range.
Although the increase that is, the R2 starts from scratch, the speedup due to burning the heat that rifle 120 provides is less than electrode
The speedup of 130 heats provided, i.e., since the speedup of the R1 is less than the speedup of the R2, the ratio between the R1 and R2 gradually subtracts
It is small, and then the ratio between the R1 and the R2 move closer to the preset range.
C-2) when the material position of the raw material in furnace body 110 reaches third preset value, the ratio between the R1 and the R2 preset model at this
In enclosing.That is, the raising of the material position with the raw material in furnace body 110, the speedup due to burning the heat that rifle 120 provides is less than
The speedup for the heat that electrode 130 provides, therefore the ratio between the R1 and the R2 move closer to the preset range, the original in furnace body 110
When the material position of material reaches third preset value, the ratio between the R1 and the R2 are fallen into the preset range.Then by the ratio between the R1 and the R2
It maintains in the preset range, and continues growing the heat and the heat that the offer of electrode 130 is provided for burning that rifle 120 provides.
Preferably, the ratio between the third preset value and second preset value are more than or equal to 0.7 and less than 1.It is further preferred that should
The ratio between third preset value and second preset value are more than or equal to 0.8 and are less than or equal to 0.9.
It in a specific example of the invention, will after the material position of the raw material in furnace body 110 reaches second preset value
The sum of the R1 and the R2 are maintained at the 4th preset value.
In other words, as the raw material in furnace body 110 gradually increases (i.e. as the material position of the raw material in furnace body 110 gradually rises
It is high), it is more and more to burn the heat that the heat that rifle 120 provides is more and more, electrode 130 provides, i.e. the R1 is gradually increased, the R2 by
It is cumulative big.After the material position of the raw material in furnace body 110 reaches second preset value, the raw material in furnace body 110 no longer increases (i.e. furnace
The material position of raw material in body 110 no longer increases), the heat that the heat that burning rifle 120 provides no longer increases, electrode 130 provides is no longer
Increase, i.e. the R1 no longer increases, the R2 no longer increases, and the sum of the R1 and the R2 are maintained at the 4th preset value.
By the way that the sum of the R1 and the R2 are maintained at the 4th preset value, to not only can preferably meet fusing glass
Requirement to heat, and the temperature field in furnace body 110 can more accurately, be more rapidly adjusted, to generate more
Ideal glass metal circulation.
Wherein, the heat that the 4th preset value is absorbed by the glass metal (raw material) in the unit time, in furnace body 110.It should
4th preset value can be determined according to factors such as the type of raw material, the yield (production capacity) of kiln 10, the glass kinds of production.
Specifically, glass metal in the operating temperature in furnace body 110 between 1530 DEG C to 1650 DEG C, i.e., in furnace body 110
The temperature of glass metal can be more than or equal to 1530 DEG C and be less than or equal to 1650 DEG C.
In some examples of the invention, the ratio between the R1 and the R2 can be more than or equal to 0.5 and be less than or equal to 0.8.It is preferred that
Ground, the ratio between the R1 and the R2 are more than or equal to 0.55 and are less than or equal to 0.75.It is further preferred that the ratio between the R1 and R2 is more than or equal to
0.58 and be less than or equal to 0.7.Most preferably, the ratio between the R1 and the R2 are more than or equal to 0.63 and are less than or equal to 0.66.
Specifically, the burning rifle is using natural gas as fuel, the R1=V × Q × Kr, the R2=W × 3600KJ/KWh × Ke,
In, V is the flow of natural gas, and Q is the calorific value of natural gas, and Kr is the absorptivity for the heat that the raw material provides the natural gas, and W is
The electrical power of electrode 130, Ke are the absorptivities for the heat that the raw material provides electrode 130, and 3600KJ/KWh is electric energy and thermal energy
The preset parameter value of conversion.
Preferably, Kr be more than or equal to 55% and be less than or equal to 75%, it is further preferred that Kr be more than or equal to 60% and be less than etc.
In 70%, most preferably, Kr is more than or equal to 62% and is less than or equal to 68%.Preferably, Ke is more than or equal to 75% and is less than or equal to
93%, it is further preferred that Ke is more than or equal to 85% and is less than or equal to 93%, most preferably, Ke is more than or equal to 88% and is less than etc.
In 90%.Kr and Ke can be determined according to the type of raw material.
In an example of the invention, which be may further include:
E) stop after raw material is added, under conditions of meeting the ratio between the R1 and the R2 and being in the preset range, to furnace body
Raw material in 110 heats preset time.It is possible thereby to further increase the consistency and quality of glass.Preferably, when this is default
Between can be -96 hours 24 hours.It is further preferred that the preset time can be -72 hours 48 hours.
It in a specific example of the invention, can be complete by the glass metal in furnace body 110 after heating the preset time
Portion's discharge.The glass metal of discharge can enter next process.That is, the glass melting process can be carried out intermittently.
In another specific example of the invention, glass melting process according to an embodiment of the present invention can be wrapped further
Include: F) preset time is heated to the raw material in furnace body 110 after, open discharge port 152 and by feed inlet 151 to furnace body 110
Interior addition raw material.
In other words, after heating the preset time to the raw material in furnace body 110, glass metal is discharged by discharge port 152 on one side,
Raw material is added into furnace body 110 by feed inlet 151 on one side.That is, the glass melting process can be carried out continuously.
Preferably, it after heating the preset time to the raw material in furnace body 110, is added by feed inlet 151 into furnace body 110
The amount of raw material be slightly larger than the amount of the glass metal being discharged by discharge port 152, to maintain the material position of the raw material in furnace body 110
In second preset value.This is because the raw material being added has and vapors away on a small quantity.
As shown in Fig. 2, furnace body 110 includes along multiple heating zones 117 of first level direction arrangement, each heating zone
117, which are equipped at least one, burns rifle 120.Glass melting process according to an embodiment of the present invention further include: the oxygen for burning rifle 120 fires volume
Than within a preset range, the fuel quantity positioned at the burning rifle 120 of adjacent three heating zones 117a, 117b, 117c meets preset relation.
The oxygen combustion volume ratio for burning rifle 120 refers to the volume ratio for burning oxygen and fuel that rifle 120 sprays.The fuel can be natural gas.
Glass melting process according to an embodiment of the present invention pass through make burn rifle 120 oxygen fire volume ratio within a preset range,
And the fuel quantity of the burning rifle 120 positioned at adjacent three heating zones 117a, 117b, 117c is made to meet preset relation, so as to essence
Really, the temperature field in furnace body 110 is adjusted, in time to generate ideal glass metal circulation, to establish the stable stream of glass metal
Dynamic state.
Due to can produce glass metal circulation in furnace body 110, i.e., there are glass metal circulation in furnace body 110, therefore not only may be used
So that the fusing of glass metal is strengthened, to improve the melting efficiency of glass metal, and then the production efficiency of glass is improved, and
The glass metal in furnace body 110 can be made more uniform, more uniform, the defects of to eliminate the bubble in glass, striped, improved
The consistency and quality of glass stick more particularly to improve production efficiency and production capacity, the promotion fusing of the fusing higher glass of viscosity
Spend the quality and product yield of higher glass.
For example, can produce preceding circulation 161 and rear circulation 162 in furnace body 110, the foundation of preceding circulation 161 and rear circulation 162
And stabilization, it ensure that molten state of the glass metal in furnace body 110 and fusing effect, the molten of kiln 10 thus not only can be improved
Change efficiency and production efficiency, and the quality and product yield of glass can be improved.
Therefore, by utilizing glass melting process according to an embodiment of the present invention, so as to improve the production effect of glass
Rate and product yield eliminate the defects of bubble, striped, the consistency for promoting glass and quality, reduce energy consumption.
In the step C of glass melting process according to an embodiment of the present invention) in, the fuel characteristic of rifle 120 is burnt in adjustment
And fuel quantity, so as to make burn rifle 120 oxygen combustion volume ratio in the preset range, be located at adjacent three heating zone 117a, 117b,
The fuel quantity of the burning rifle 120 of 117c meets the preset relation.
In glass melting process according to an embodiment of the present invention, can raw material in (possibility) furnace body 110 material position it is first
Reach second preset value, then realize burn rifle 120 oxygen combustion volume ratio in the preset range, be located at adjacent three heating zones
The fuel quantity of the burning rifle 120 of 117a, 117b, 117c meets the preset relation, the i.e. fuel characteristic and fuel of adjustment burning rifle 120
The process of amount is relatively long；Can also (possibility) first realize burn rifle 120 oxygen combustion volume ratio in the preset range, be located at it is adjacent
The fuel quantity of the burning rifle 120 of three heating zones 117a, 117b, 117c meets the preset relation, the i.e. fuel of adjustment burning rifle 120
Characteristic and the process of fuel quantity are relatively short, and then the material position of the raw material in furnace body 110 reaches second preset value.
The oxygen combustion volume ratio for burning rifle 120 can be (2-3): 1.It is possible thereby to more accurately, regulating stove much sooner
Temperature field in body 110, so as to generate more ideal glass metal circulation.Preferably, the oxygen combustion volume ratio for burning rifle 120 can
To be (2.3-2.7): 1.It is further preferred that the oxygen combustion volume ratio for burning rifle can be (2.45-2.55): 1.
Preferably, the oxygen combustion volume ratio of above-mentioned burning rifle 120 can be the oxygen combustion of the burning rifle 120 under the conditions of isothermal and isobaric
Volume ratio.Specifically, if the temperature and/or pressure of oxygen are not equal to the temperature and/or pressure of fuel, it first can be by oxygen
Volume be converted into the volume under the temperature and pressure of fuel, or the volume of fuel can be converted into the temperature in oxygen
With the volume under pressure, the oxygen combustion volume ratio for burning rifle 120 is then calculated again.It is possible thereby to which more reasonably rifle 120 is burnt in control
Oxygen fires volume ratio.
First heating zone 117a in adjacent three heating zones 117a, 117b, 117c can be adjacent to feed inlet 151, phase
Third heating zone 117c in neighbour three heating zones 117a, 117b, 117c can neighbouring discharge port 152.In other words, for phase
For neighbour three heating zones 117a, 117b, 117c, compared with second heating zone 117b and third heating zone 117c, first
A heating zone 117a is more adjacent to feed inlet 151, compared with first heating zone 117a and second heating zone 117b, third
Heating zone 117c is more adjacent to discharge port 152.
The fuel quantity of the burning rifle 120 of first heating zone 117a in adjacent three heating zones 117a, 117b, 117c
The sum of can be M1, the burning rifle 120 of second heating zone 117b in adjacent three heating zones 117a, 117b, 117c
The sum of fuel quantity can be M2, the burning rifle of the third heating zone 117c in adjacent three heating zones 117a, 117b, 117c
The sum of 120 fuel quantity can be M3.For example, being located in first heating zone 117a there are five rifle 120 is burnt, this five burning rifles
The sum of the fuel quantity of 120 (injections) can be M1.
Wherein, 0.7≤M1/M2≤0.95,1.3≤(M1+M2)/M3≤2.It is possible thereby to more accurately, much sooner
Ground adjusts the temperature field in furnace body 110, so as to generate more ideal glass metal circulation.Preferably, 0.72≤M1/M2≤
0.91,1.4≤(M1+M2)/M3≤1.9.It is further preferred that 0.77≤M1/M2≤0.85,1.55≤(M1+M2)/M3≤
1.75。
As shown in Fig. 2, specifically, furnace body 110 may include along first level direction arrangement three heating zone 117a,
117b,117c.It is possible thereby in the case where generating ideal glass metal circulation, reduce accurately, adjust furnace body 110 in time
The difficulty in interior temperature field.Heating zone 117 can be the part between adjacent two dotted lines of the furnace body 110 in Fig. 2.
First side wall 111 can be L, each heating zone 117 at a distance from the second side wall 112 is on the first level direction
Length on the first level direction can be more than or equal to 0.25L and be less than or equal to 0.45L.
Preferably, length of each heating zone 117 on the first level direction can be more than or equal to 0.3L and be less than etc.
In 0.35L.It is further preferred that length of each heating zone 117 on the first level direction can be equal to 0.33L.Thus may be used
To expand the moving range on the boundary of each heating zone 117, so as to increase the operating flexibility of glass melting process.
For example, when length of each heating zone 117 on the first level direction is more than or equal to 0.3L and is less than or equal to
When 0.35L, the boundary of second heating zone 117b can move 0.05L, to adjacent to discharge port to the direction of neighbouring feed inlet 151
The mobile 0.1L in 152 direction.
Wherein, the temperature highest of the glass metal of (distance) 0.6L is spaced with feed inlet 151 on the first level direction, this
Place is referred to as hot spot.Glass metal is in the hotspot location due to thermally expanding, and density becomes smaller floating, and glass metal is in the hot spot
Two sides form the opposite preceding circulation 161 and rear circulation 162 of flow direction.Due to the presence of preceding circulation 161 and rear circulation 162, glass metal
Fusing strengthened, workflow 163 melts the glass metal of completion with work under the driving that furnace body 110 feeds intake and discharges
Stream is flowed out from discharge port 152, and then enters next procedure.
Experimental example 1: the flow of glass metal is 8 ton/days, and product is TFT-LCD glass, and wherein the ratio between the R1 and R2 is equal to
0.5.Bubble and striped are bad within 3%, and product meets quality requirements.
Experimental example 2: the flow of glass metal is 10 ton/days, and product is TFT-LCD glass, wherein the ratio between the R1 and the R2 etc.
In 0.63.Bubble and striped are bad within 3%, and product meets quality requirements.
Experimental example 3: the flow of glass metal is 14 ton/days, and product is LTPS glass, and wherein the ratio between the R1 and R2 is equal to
0.8.Bubble and striped are bad within 4.7%, and product meets quality requirements.
Experimental example 4: glass flow quantity is 8 ton/days, and product is TFT-LCD glass, and wherein the ratio between the R1 and R2 is equal to
0.5, oxygen combustion is than being 2.4, M1/M2=0.7, (M1+M2)/M3=2.Within 2%, product meets product for bubble and striped fraction defective
Matter requirement.
Experimental example 5: glass flow quantity is 10 ton/days, and product is TFT-LCD glass, and wherein the ratio between the R1 and R2 is equal to
0.63, oxygen combustion is than being 2, M1/M2=0.95, (M1+M2)/M3=1.3.Within 2%, product meets for bubble and striped fraction defective
Quality requirements.
Experimental example 6: glass flow quantity is 14 ton/days, and product is LTPS glass, and wherein the ratio between the R1 and the R2 are equal to 0.8,
Oxygen combustion is than being 3, M1/M2=0.77, (M1+M2)/M3=1.75.Within 3.4%, product meets product for bubble and striped fraction defective
Matter requirement.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of glass melting process, which is characterized in that implement the glass melting process using kiln, the kiln includes:
Furnace body, the furnace body are equipped with inlet port and outlet port；And
It burns rifle and electrode, the burning rifle is located on the furnace body, the electrode is located on the furnace body；
The glass melting process the following steps are included: close the discharge port, by the feed inlet into the furnace body plus
Enter raw material, provides heat to the intracorporal raw material of the furnace using the burning rifle and the electrode, wherein within the unit time, it is described
Burn rifle to the heat that the raw material provides be R1, the electrode to the heat that the raw material provides be R2, the R1 and the R2
The ratio between within a preset range.
2. glass melting process according to claim 1, which is characterized in that the furnace body has on first level direction
Opposite the first side wall and the second side wall and third side wall and the 4th side wall opposite in the second horizontal direction, wherein described
Feed inlet is located on the crown wall and at least one of first side wall of the furnace body, and the discharge port is located at the furnace body
On at least one of bottom wall and second side wall, the burning rifle is located in the third side wall and the 4th side wall extremely
On one few, the electrode is located on each of the third side wall and the 4th side wall, it is preferable that the burning rifle position
In the top of the electrode, it is preferable that the furnace body includes along multiple heating zones of first level direction arrangement, Mei Gesuo
Heating zone is stated equipped at least one described burning rifle.
3. glass melting process according to claim 2, which is characterized in that
The burning rifle includes the first burning rifle and second burns rifle, and the first burning rifle is located on the third side wall, and described second burns
Rifle is located on the 4th side wall；
The electrode includes first electrode and second electrode, and the first electrode is located on the third side wall, second electricity
Pole is located on the 4th side wall.
4. glass melting process according to claim 1, which comprises the following steps:
A the discharge port) is closed, raw material is added into the furnace body by the feed inlet, using the burning rifle to the furnace
Intracorporal raw material provides heat；
B) when the material position of the intracorporal raw material of the furnace reaches the first preset value, start the electrode so as to intracorporal to the furnace
Raw material provides heat；
C it) continues through the feed inlet and raw material is added into the furnace body, the heat and the electricity for burning rifle and providing is provided
The heat that pole provides, until the ratio between the R1 and the R2 are in the preset range；With
D it) under conditions of meeting the ratio between the R1 and the R2 and being in the preset range, continues growing the burning rifle and provides
Heat and the electrode provide heat, when the material position of the intracorporal raw material of the furnace reaches the second preset value, stop plus
Enter raw material, it is preferable that the ratio between first preset value and second preset value are more than or equal to 0.2 and are less than or equal to 0.4, more
Preferably, the ratio between first preset value and second preset value are equal to 0.33.
5. glass melting process according to claim 4, which is characterized in that further comprise:
E) stop after raw material is added, under conditions of meeting the ratio between the R1 and the R2 and being in the preset range, to institute
State the intracorporal raw material heating preset time of furnace, it is preferable that the preset time is -96 hours 24 hours, it is preferable that the glass
Melting method further comprises: F) preset time is heated to the intracorporal raw material of the furnace after, open the discharge port so as to
Make glass metal outflow furnace body and raw material is added into the furnace body by the feed inlet.
6. glass melting process according to claim 4, which is characterized in that the step C) include:
C-1 it) continues through the feed inlet and is added raw material into the furnace body, increase the heat that rifle provides and described of burning
The heat that electrode provides, wherein the speedup for burning the heat that rifle provides is less than the speedup for the heat that the electrode provides；With
C-2) when the material position of the intracorporal raw material of the furnace reaches third preset value, the ratio between the R1 and the R2 are described default
In range, it is preferable that the ratio between the third preset value and second preset value are more than or equal to 0.7 and less than 1, more preferably
Ground, the ratio between the third preset value and second preset value are more than or equal to 0.8 and are less than or equal to 0.9.
7. glass melting process according to claim 4, which is characterized in that when the material position of the intracorporal raw material of the furnace reaches
After second preset value, the sum of the R1 and the R2 are maintained at the 4th preset value.
8. glass melting process described in any one of -7 according to claim 1, which is characterized in that the ratio between the R1 and the R2
More than or equal to 0.5 and it is less than or equal to 0.8, it is preferable that the ratio between the R1 and the R2 are more than or equal to 0.55 and less than or equal to 0.75,
It is further preferred that the ratio between the R1 and the R2 be more than or equal to 0.58 and be less than or equal to 0.7, most preferably, the R1 with it is described
The ratio between R2 is more than or equal to 0.63 and is less than or equal to 0.66.
9. glass melting process according to claim 1 to 8, which is characterized in that the burning rifle is with natural gas
Fuel, the R1=V × Q × Kr, the R2=W × 3600KJ/KWh × Ke, wherein V is the flow of natural gas, and Q is natural
The calorific value of gas, Kr are the absorptivities for the heat that the raw material provides the natural gas, and W is the electrical power of the electrode, and Ke is
The absorptivity for the heat that the raw material provides the electrode, 3600KJ/KWh are the preset parameter values of electric energy and thermal energy conversion,
Preferably, Kr is more than or equal to 55% and is less than or equal to 75%, it is further preferred that Kr is more than or equal to 60% and is less than or equal to
70%, most preferably, Kr is more than or equal to 62% and less than or equal to 68%,
Preferably, Ke is more than or equal to 75% and is less than or equal to 93%, it is further preferred that Ke is more than or equal to 85% and is less than or equal to
93%, most preferably, Ke is more than or equal to 88% and is less than or equal to 90%.
10. glass melting process according to claim 9, which is characterized in that
Under the conditions of isothermal and isobaric, the oxygen combustion volume ratio for burning rifle is (2-3): 1, it is preferable that the oxygen for burning rifle fires volume
Than for (2.3-2.7): 1, it is further preferred that the oxygen combustion volume ratio for burning rifle is (2.45-2.55): 1,
First heating zone in adjacent three heating zones is in the feed inlet, adjacent three heating zones
The third heating zone adjacent to the discharge port, first heating zone in adjacent three heating zones
The sum of described fuel quantity for burning rifle is M1, the burning rifle of second heating zone in adjacent three heating zones
The sum of fuel quantity be M2, the fuel quantity of the burning rifle of the third heating zone in adjacent three heating zones
The sum of be M3, wherein 0.7≤M1/M2≤0.95,1.3≤(M1+M2)/M3≤2, it is preferable that 0.72≤M1/M2≤0.91,1.4
≤ (M1+M2)/M3≤1.9, it is further preferred that 0.77≤M1/M2≤0.85,1.55≤(M1+M2)/M3≤1.75.
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