CN203833805U - Coarse annealing equipment for optical glass strip - Google Patents
Coarse annealing equipment for optical glass strip Download PDFInfo
- Publication number
- CN203833805U CN203833805U CN201420247976.4U CN201420247976U CN203833805U CN 203833805 U CN203833805 U CN 203833805U CN 201420247976 U CN201420247976 U CN 201420247976U CN 203833805 U CN203833805 U CN 203833805U
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- CN
- China
- Prior art keywords
- burner hearth
- glass
- cooling section
- air
- optical glass
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000137 annealing Methods 0.000 title claims abstract description 41
- 239000005304 optical glass Substances 0.000 title claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 62
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000005192 partition Methods 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 16
- 238000013022 venting Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical group [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 abstract 3
- 238000007599 discharging Methods 0.000 abstract 2
- 238000007507 annealing of glass Methods 0.000 abstract 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The utility model discloses coarse annealing equipment for an optical glass strip, belonging to the technical field of optical glass annealing and being mainly used for solving the problems of stress elimination and tapping hole discharging temperature control after the traditional optical glass is formed. The coarse annealing equipment is mainly characterized in that a controlled cooling section is connected to the rear of a heat insulating and gradient cooling section, and a hearth is internally provided with a muffle cover; two sides of the muffle cover of the heat insulating and gradient cooling section are provided with heating devices; an air convection gas channel is remained between the muffle cover and the wall of the hearth, and a partition wall is arranged at the boundary of the heat insulating and gradient cooling section and the controlled cooling section of the hearth; the glass inlet end of the controlled cooling section of the hearth is additionally provided with a variable-frequency induced draft fan, and a glass tapping hole is provided with an air inlet; an air outlet of the variable-frequency induced draft fan is connected with a pipeline and a branch pipe extending into the muffle cover, and the branch pipe is provided with air vents. The coarse annealing equipment has the characteristics of adjustable glass tapping hole temperature, suitability for annealing and discharging glass strips with different thicknesses and capability of reducing the labor intensity and is mainly used for coarsely annealing the glass strips with different thicknesses.
Description
Technical field
The utility model belongs to optical glass strip material black annealing technical field, is specifically related to a kind of for glass billot black annealing the automatic equipment that regulates glass temperature out.
Background technology
Optical glass strip material eliminates stress through the guipure black annealing furnace annealing of end connection later after founding moulding.The guipure black annealing stove using at present comprises heating zone, insulation and gradient cooling section and free temperature descending section.Electric heater unit is established in heating zone, insulation and gradient cooling section four sides or both sides, and free temperature descending section is not established heating unit.Glass utilizes thermal stresses and stress concentration principle under length, to be broken into block glass on request in annealing furnace outlet after guipure black annealing furnace annealing.Can be fine lower disconnected for the ease of glass, can not cause because of excess Temperature piece material to burst too low lower the breaking that be difficult to, plug for outlet glass temperature must be controlled within the specific limits.Chunk glass material is mainly supplied with downstream secondary press producer and is used, and secondary press producer is in order to improve material use efficiency, according to the billot specification of the size requirements different thickness of press type part.Therefore opticglass needs to produce various thickness different glass piece material in process of production.When production, for stably manufactured technique ensures quality product, conventionally adopt the method that changes draw rate to adjust thickness.In the time changing thickness specification, because glass changes in annealing furnace movement velocity, cause annealing furnace outlet glass temperature to change.This changes according to adjacent-specification thickness size and difference.Specification is poor larger, and plug for outlet glass temperature changes greatly.At present general method is that the specification adjusting in advance insulation and gradient cooling section annealing temperature or draw the transition thickness of one section of centre is carried out Prevention on glass temperature out acute variation and the outlet glass temperature that causes is too high bursts or be too lowly difficult to lower breaking.
The shortcoming of this kind of control method is:
Due to annealing furnace control be room temps, while changing thickness specification, the actual cooling of glass gradient can change and changes with glass run speed, large by adjustment annealing process guarantee glass temperature out operation easier;
2. transition thickness does not meet contract requirements, easily causes stock, increases production cost;
3. cause because temperature out is uncontrollable and burst waste or be difficult to lower disconnected increase labour intensity.
For this reason, need a kind of device to carry out auxiliary adjustment plug for outlet glass temperature.
Summary of the invention
The utility model is exactly for above-mentioned deficiency, and a kind of optical glass strip material black annealing equipment is provided, and on existing guipure black annealing furnace structure basis, improves.Automatically regulate temperature descending section glass cooling rate, reach the object of controlling glass temperature out.
Technical solution of the present utility model is: a kind of optical glass strip material black annealing equipment, comprise the guipure black annealing stove containing burner heating zone and burner hearth insulation and gradient cooling section, burner heating zone is provided with infrared combustor, and burner hearth insulation is provided with heating unit with gradient cooling section both sides; Burner hearth outside is provided with thermal insulation layer; It is characterized in that: described burner hearth insulation is connected burner hearth control temperature descending section afterwards with gradient cooling section, in burner hearth insulation and gradient cooling section and burner hearth control temperature descending section, is provided with inner cover; Described burner hearth insulation is provided with heating unit with the inner cover both sides of gradient cooling section; Between described inner cover and hearth wall, leave convection of air interstitial channels, and in this convection of air interstitial channels, be positioned at burner hearth insulation and be provided with partition with the boundary of gradient cooling section and burner hearth control temperature descending section; On the burner hearth of the glass inlet port end of described burner hearth control temperature descending section, add the frequency converting induced draft fan communicating with convection of air interstitial channels, glass plug for outlet is established the blast inlet communicating with convection of air interstitial channels; Burner hearth is provided with the pipeline being connected with frequency converting induced draft fan air outlet outward, this device for cleaning pipeline overregulates valve and is connected through burner hearth the arm that stretches into inner cover, the arm that arm is positioned at inner cover is provided with pore, utilize air cooling inner cover to regulate burner hearth room temps, and to preheating of air, air after preheating is imported to burner hearth, further regulating stove bore temperature.
Arm described in technical solution of the present utility model is provided with two venting holes, and this two venting holes perforate upwards, is 30 ~ 60 degree angles, air vent aperture 4 ~ 6mm.
Heating unit described in technical solution of the present utility model is silicon carbide hot plate.
Glass plug for outlet described in technical solution of the present utility model is established infrared thermometer, the real time measure glass temperature.The temperature signal of measuring feeds back to intelligent meter, by intelligent meter Signal Regulation fan frequency converter, regulates cooling air quantity thereby change blower fan gravitation.Change glass rate of temperature fall, realize plug for outlet controlled temperature.
The gap of the convection of air interstitial channels described in technical solution of the present utility model is 50 ~ 100mm.
The beneficial effects of the utility model are:
1. exporting glass temperature by monitoring, to regulate cooling rate to realize annealing furnace outlet glass controlled;
2. adopt the air of preheating directly air-cooled to glass in inner cover, can avoid the too fast generation of glass descent of temperature to burst;
3. by controlling annealing furnace temperature out, when prevention specification is changed, glass temperature is crossed when relative superiority or inferiority is broken and is burst;
4. by controlling annealing furnace temperature out, when prevention specification is changed, glass temperature is too low difficult lower disconnected, increases labour intensity.
The utlity model has the feature that glass plug for outlet temperature is adjustable, be applicable to different thickness glass billot annealing blanking, minimizing labour intensity.The utility model is mainly used in the black annealing of different thickness glass billot.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model insulation and gradient cooling segment structure schematic diagram.
Fig. 3 is the utility model control temperature descending section structural representation.
Fig. 4 is invention control temperature descending section branch vent structural representation.
Fig. 5 is the left view of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing, technical solutions of the utility model are further described.
The utility model optical glass strip material black annealing equipment connection is in forming mould rear end, and the glass billot of forming, enters burner heating zone A, burns rifle 1 fast glass temperature is heated to annealing temperature by the infrared gas of both sides.While entering annealing furnace burner hearth, make glass bar material temperature degree evenly in annealing range.Burner hearth surrounding is established inner cover 4, makes Glassy Space more uniform temperature, and inner cover 4 is made by heat-resistance stainless steel.Burner hearth outside is provided with thermal insulation layer 2.Burner hearth insulation is established silicon carbide hot-plate 12 with the burner hearth both sides of gradient cooling section B, establish a temperature automatically controlled unit for 1 meter, both sides heating makes fire box temperature have certain temperature head, poor with compensation glass billot heatsink transverse, make glass billot transverse temperature more even, stress is better eliminated.At burner hearth control temperature descending section, C does not establish heating.Establishing induced draft fan 14 with burner hearth control temperature descending section C intersection, utilize convection of air interstitial channels 3 between inner cover 4 and thermal insulation layer, front end and heating part cut off, and establish blast inlet 13 in plug for outlet rear end, adjust by changing blower fan frequency the air capacity that enters air channel.The gap of convection of air interstitial channels 3 is 50 ~ 100mm.The air entering in convection of air interstitial channels 3 is adjusted inner cover 4 temperature on the one hand to regulate glass rate of temperature fall, and the while is also carried out preheating.Induced draft fan air outlet external pipe 9, imports the air of preheating to control in temperature descending section inner cover 4 by pipeline 9 and arm 5, further regulates glass rate of temperature fall.Arm 5 inlet ends are established regulated valve 10, and inner cover 4 inside are set up two venting holes 11, aperture 4 ~ 6mm separately.Two venting holes 11 are 30 ~ 60 degree angles to blowing up inner cover inwall, regulate glass envrionment temperature in burner hearth by convolution wind, avoid the warm air that temperature is lower directly to blow at glass surface, cause lowering the temperature too fast, cause in stove and burst.At plug for outlet installation infrared temperature measurer 6, the temperature data of mensuration is real-time transmitted to control instruments 7.By after insulation and gradient cooling C, guarantee that glass strain effectively eliminates at glass.
When changing thickness of glass specification, billot travelling speed changes and causes when plug for outlet glass temperature changes, the temperature signal of infrared thermometer 6 is transferred to control instruments 7, control instruments is by comparing with the plate cutting center temperature value of setting according to the trade mark, after send instruction signal to induced draft fan frequency-variable controller 8, adjust blower fan frequency, change induced draft fan gravitation with this.Change and regulate the air quantity that enters inner cover outer air duct by gravitation.By preliminary adjusting inner cover temperature, change glass envrionment temperature in annealing furnace, adjust glass rate of temperature fall.Air after inner cover preheating, through fan out draft, is transported to small transfer line 5 by pipeline 9, distributes through bye-pass, enters in inner cover via two venting holes 11 on bye-pass 5.Establish regulated valve 10 at arm blast inlet, the air output size of arm before and after regulating and distributing, regulates glass rate of temperature fall in annealing furnace by hot blast secondary, and plug for outlet glass temperature is controlled in claimed range.Pore 11 is in a certain angle, to blowing up inner cover inwall, again regulates inner cover temperature, simultaneously to cooling air second-heating, avoids temperature too low, brushes glass and causes glass cooling too fast, causes in glass billot stove and bursts.By controlling the adjusting of temperature descending section, plug for outlet glass is controlled in claimed range.
Claims (5)
1. an optical glass strip material black annealing equipment, comprise the guipure black annealing stove containing burner heating zone (A) and burner hearth insulation and gradient cooling section (B), burner heating zone (A) is provided with infrared combustor, and burner hearth insulation is provided with heating unit with gradient cooling section (B) both sides; Burner hearth outside is provided with thermal insulation layer (2); It is characterized in that: described burner hearth insulation is connected burner hearth control temperature descending section (C) afterwards with gradient cooling section (B), in burner hearth insulation and gradient cooling section (B) and burner hearth control temperature descending section (C), is provided with inner cover (4); Described burner hearth insulation is provided with heating unit with the inner cover both sides of gradient cooling section (B); Between described inner cover and hearth wall, leave convection of air interstitial channels (3), and in this convection of air interstitial channels (3), be positioned at burner hearth insulation and be provided with partition with the boundary of gradient cooling section (B) and burner hearth control temperature descending section (C); On the burner hearth of the glass inlet port end of described burner hearth control temperature descending section (C), add the frequency converting induced draft fan communicating with convection of air interstitial channels (3), glass plug for outlet is established the blast inlet communicating with convection of air interstitial channels (3); Burner hearth is provided with the pipeline (9) being connected with frequency converting induced draft fan air outlet outward, this pipeline (9) by variable valve (10) be connected through burner hearth the arm (5) that stretches into inner cover, the arm that arm (5) is positioned at inner cover is provided with pore (11).
2. a kind of optical glass strip material black annealing equipment according to claim 1, is characterized in that: described arm (5) is provided with two venting holes (11), and this two venting hole (11) perforate upwards, is 30 ~ 60 degree angles, air vent aperture 4 ~ 6mm.
3. a kind of optical glass strip material black annealing equipment according to claim 1 and 2, is characterized in that: described heating unit is silicon carbide hot plate (12).
4. a kind of optical glass strip material black annealing equipment according to claim 1 and 2, is characterized in that: described glass plug for outlet is established infrared thermometer (6).
5. a kind of optical glass strip material black annealing equipment according to claim 1 and 2, is characterized in that: the gap of described convection of air interstitial channels (3) is 50 ~ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247976.4U CN203833805U (en) | 2014-05-15 | 2014-05-15 | Coarse annealing equipment for optical glass strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247976.4U CN203833805U (en) | 2014-05-15 | 2014-05-15 | Coarse annealing equipment for optical glass strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203833805U true CN203833805U (en) | 2014-09-17 |
Family
ID=51511675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420247976.4U Expired - Fee Related CN203833805U (en) | 2014-05-15 | 2014-05-15 | Coarse annealing equipment for optical glass strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203833805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200465A (en) * | 2017-07-18 | 2017-09-26 | 盐城市宁润玻璃制品有限公司 | A kind of used in glass products annealing furnace |
-
2014
- 2014-05-15 CN CN201420247976.4U patent/CN203833805U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200465A (en) * | 2017-07-18 | 2017-09-26 | 盐城市宁润玻璃制品有限公司 | A kind of used in glass products annealing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 |