CN109721230A - A kind of glass tempering method - Google Patents
A kind of glass tempering method Download PDFInfo
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- CN109721230A CN109721230A CN201910216290.6A CN201910216290A CN109721230A CN 109721230 A CN109721230 A CN 109721230A CN 201910216290 A CN201910216290 A CN 201910216290A CN 109721230 A CN109721230 A CN 109721230A
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- glass
- tempering
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- cooling air
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Abstract
The present invention is a kind of glass tempering method, when processing the glass of same thickness, the glass tempering blowing time used is associated with the length of every furnace glass, the specific steps of which are as follows: 1) after every furnace glass heating, when the front end of every furnace glass enters cooling air grid or before entering cooling air grid, cooling air grid starts tempering blowing；2) when the end of every furnace glass enters cooling air grid, start tempering blowing timing；3) after tempering blow-time reaches glass tempering time or the glass tempering necessary time of setting, cooling air grid switchs to cooling blowing by tempering blowing；4) cooling air grid is dried the glass cooling temperature to the glass cooling time of setting or setting, and it is cooling to complete glass tempering.This method is associated tempering blow-time with every furnace glass length by controller and displacement sensor, is rationally controlled the Origin And Destination of tempering blowing, is kept tempering blow-time just right, not only ensure that tempering quality but also reduced energy consumption.
Description
Technical field
The present invention relates to glass production manufacturing technology field more particularly to a kind of glass tempering methods.
Background technique
The forming process of tempered glass is after glass to be heated to certain temperature, to drop to centainly according to certain cooling velocity
Temperature after formed.It is corresponding, the energy consumption of glass tempering furnace can mainly there be three parts composition:
1, glass is heated to energy consumption required for certain temperature；
2, glass is cooled to energy consumption required for certain temperature；
3, other auxiliary energy consumptions required for equipment is run.
For heating energy consumption, the lost of heat has been accomplished minimum by current heat preservation technology；Auxiliary energy consumption is come
It says, ratio shared by energy consumption is smaller, and energy loss is also smaller；For cooling energy consumption, current energy consumption or bigger
, there are also the spaces promoted.
In the prior art, glass is swung by reciprocating swing or non-shuttle in cooling air grid and carries out tempering cooling.
In the reciprocating swing tempering cooling procedure of glass, for the needs of energy-saving and emission-reduction, energy consumption, cooling time are further reduced
It can be further subdivided into tempering time and cooling time, requirement of the different periods to wind is different.Cooling wind as a result,
Grid are dried there is also tempering and two kinds of operating modes of cooling blowing.By taking 5 millimeters of glass as an example, cooling wind required for the tempering time
It is high wind pressure, cooling wind required for cooling time is low wind pressure.The requirement of cooling wind is different, the caused energy
Consumption is also different, if being bound to cause the increase of energy consumption using high wind pressure in the cooling period.
The process for completing tempering to glass is well-known in tempering industry, steel required for the glass of different size
Change necessary time (completing the shortest time required for tempering) to be different.But for the glass tempering necessary time for determining specification
It is constant.In order to complete maximum specification glass tempering, common practice is reached in the front end of every furnace glass in industry
Start tempering timing when cooling air grid end, the tempering time of technique initialization as a result caused to be greater than glass tempering necessary time,
Cause unnecessary waste.
For this purpose, designing a kind of glass tempering method, problem above is solved.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide a kind of glass tempering method, this method passes through controller
And displacement sensor, tempering blow-time is associated with every furnace glass length, rationally control tempering blowing starting point with
Terminal, keeps tempering blow-time just right, not only ensure that tempering quality but also has reduced energy consumption.
To achieve the above object, the present invention discloses a kind of glass tempering method, when processing the glass of same thickness, glass
The tempering blowing time used is associated with the length of every furnace glass, the specific steps of which are as follows:
1) cooling when the front end of every furnace glass enters cooling air grid or before entering cooling air grid after every furnace glass heating
Air grid starts tempering blowing；
2) when the end of every furnace glass enters cooling air grid, start tempering blowing timing；
3) after tempering blow-time reaches glass tempering time or the glass tempering necessary time of setting, cooling air grid is by steel
Change blowing and switchs to cooling blowing；
4) cooling air grid is dried the glass cooling temperature to the glass cooling time of setting or setting, and it is cold to complete glass tempering
But.
Further, using displacement sensor judge every furnace glass initially enter cooling air grid time point and every furnace glass
The end of glass enters the time point of cooling air grid.
Further, toughening method as described in claim 1, which is characterized in that in the step 3), the glass of the setting
The tempering time is fixed value or dynamic value relevant to every furnace glass length or length of interval.
Further, institute's displacement sensors are encoder or rotary transformer.
The beneficial effects of the present invention are:
A kind of glass tempering method of the present invention in process of production, when the front end of every furnace glass enters cooling air grid
When or enter cooling air grid before, blower tempering blowing starts, to ensure the front end tempering of every furnace glass, when the end of every furnace glass
When into cooling air grid, starts tempering and dry timing, after the glass tempering time or glass tempering necessary time by setting, wind
The blowing of machine tempering terminates, and to ensure the end tempering of every furnace glass, then switchs to cooling blowing, until the glass of setting is cooling
The cooling temperature of time or setting completes glass tempering process.The length of furnace glass every in this way is associated with tempering blow-time
Get up, has not only met technique requirement, but also reached energy-saving effect.
Need to illustrate two o'clock: (1) " every furnace glass " of the present invention refers to that annealing furnace heats and tempering each time
Cooling glass can be a sheet glass, be also possible to the set constituted along the spaced divided glass of conveying direction, because
This, the front end and end of every furnace glass can be the front end and end of a sheet glass, and most cases are that above-mentioned divided glass is constituted
Set front end and end.(2) front end and end of the present invention can be understood as the front end and end of every furnace glass
Edge, it is also understood that for close to a region of the setting length at above-mentioned edge.
Specific embodiment
Description of specific embodiments of the present invention below.
A kind of glass tempering method, when processing the glass of same thickness, glass tempering blowing time used and every furnace
The length of glass is associated, the specific steps of which are as follows:
1) cooling when the front end of every furnace glass enters cooling air grid or before entering cooling air grid after every furnace glass heating
Air grid starts tempering blowing；
2) when the end of every furnace glass enters cooling air grid, start tempering blowing timing；
3) after tempering blow-time reaches glass tempering time or the glass tempering necessary time of setting, cooling air grid is by steel
Change blowing and switchs to cooling blowing；
4) cooling air grid is dried the glass cooling temperature to the glass cooling time of setting or setting, and it is cold to complete glass tempering
But.
The glass tempering time set described in present embodiment, that is, every furnace glass of same thickness was set as fixed value
The glass tempering time is identical；It or is that dynamic value, that is, the glass tempering time set and every furnace glass length or length of interval exist
Corresponding relationship.
In present embodiment, judge that the front end of every furnace glass initially enters the time of cooling air grid using displacement sensor
The end of point and every furnace glass enters the time point of cooling air grid.Institute's displacement sensors are encoder or rotary transformer.
With wide 2400mm, for the annealing furnace of long 5000mm, the glass energy-saving effect of 5mm thickness is as follows:
| Glass length (mm) | 1000 | 2000 | 3000 | 4000 | 5000 |
| The practical blow-time (s) of tempering | 12 | 14 | 16 | 18 | 20 |
| Tempered glass blow-time in industry (s) | 21 | 21 | 21 | 21 | 21 |
| Save the time (s) | 9 | 7 | 5 | 3 | 1 |
| Energy-saving effect | 42.8% | 33.3% | 23.8% | 14.3% | 4.7% |
Note: 1) air grid length is 5500mm；
2) it fixes tentatively into grid speed as 500mm/s；
3) tempering necessary time is set to 10s；
4) it is based at above-mentioned 3 points, the tempering blow-time in industry is 21s.
As can be seen from the above table, using the method, energy-efficient the good results are evident, when the length of especially every furnace glass is smaller
Energy-saving effect is more prominent.It is easily understood that: above-mentioned tempering necessary time, which is set to a fixed value (such as 10s) and is one, to be shown
Example；It is the glass tempering time of setting in most cases, which is dynamic relevant to every furnace glass length or length of interval
Value.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications should also regard
For protection scope of the present invention.
Claims (4)
1. a kind of glass tempering method, which is characterized in that when processing the glass of same thickness, when used in glass tempering blowing
Between it is associated with the length of every furnace glass, the specific steps of which are as follows:
1) after every furnace glass heating, when the front end of every furnace glass enters cooling air grid or before entering cooling air grid, cooling air grid
Start tempering blowing；
2) when the end of every furnace glass enters cooling air grid, start tempering blowing timing；
3) after tempering blow-time reaches glass tempering time or the glass tempering necessary time of setting, cooling air grid is blown by tempering
Wind switchs to cooling blowing；
4) cooling air grid is dried the glass cooling temperature to the glass cooling time of setting or setting, and it is cooling to complete glass tempering.
2. a kind of glass tempering method as described in claim 1, which is characterized in that the step 1) or 2) in, passed using displacement
Sensor judges that the front end of every furnace glass initially enters the time point of cooling air grid and the end of every furnace glass enters cooling air grid
Time point.
3. a kind of glass tempering method as described in claim 1, which is characterized in that in the step 3), the glass of the setting
The tempering time is fixed value or dynamic value relevant to every furnace glass length or length of interval.
4. a kind of glass tempering method as claimed in claim 2, which is characterized in that institute's displacement sensors are encoder or rotation
Transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216290.6A CN109721230A (en) | 2019-03-21 | 2019-03-21 | A kind of glass tempering method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216290.6A CN109721230A (en) | 2019-03-21 | 2019-03-21 | A kind of glass tempering method |
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| Publication Number | Publication Date |
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| CN109721230A true CN109721230A (en) | 2019-05-07 |
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| CN201910216290.6A Pending CN109721230A (en) | 2019-03-21 | 2019-03-21 | A kind of glass tempering method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422996A (en) * | 2019-09-11 | 2019-11-08 | 巢湖市伟业玻璃有限公司 | Cooling device for tempered glass production |
-
2019
- 2019-03-21 CN CN201910216290.6A patent/CN109721230A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422996A (en) * | 2019-09-11 | 2019-11-08 | 巢湖市伟业玻璃有限公司 | Cooling device for tempered glass production |
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Application publication date: 20190507 |