CN101306916A - Annealing process and equipment for foamed glass blank - Google Patents
Annealing process and equipment for foamed glass blank Download PDFInfo
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- CN101306916A CN101306916A CNA2008100628636A CN200810062863A CN101306916A CN 101306916 A CN101306916 A CN 101306916A CN A2008100628636 A CNA2008100628636 A CN A2008100628636A CN 200810062863 A CN200810062863 A CN 200810062863A CN 101306916 A CN101306916 A CN 101306916A
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Abstract
The invention relates to an annealing technique and an annealing device. The annealing technique for chunk foam glass is as follows: the annealing is performed in a kiln, and the chunk foam glass is annealed by adoption of the continuous mesh-belt conveying means; and the temperature of a hearth of the kiln is gradually reduced from the high temperature on an inlet to the normal temperature on an outlet. The annealing device for the chunk foam glass comprises the kiln, wherein, the inside of the furnace is provided with a continuous mesh-belt conveyer, provided with 20 to 50 temperature decreasing regions from the inlet to the outlet, and is also provided with a temperature control system. Due to adoption of continuous mesh-belt conveying of the chunk foam glass, continuous operation is realized; due to adoption of gradual temperature reduction in the kiln, the uniform annealing for a long time is realized, thereby high-performance foam glass with difficulty in fracture, high strength and low thermal conduction is produced; and due to arrangement of a plurality of temperature regions inside the furnace, the temperature is convenient to control independently.
Description
(1) technical field
The present invention relates to a kind of annealing process and annealing device of foamed glass blank.
(2) background technology
Multicellular glass be a kind of be main raw material with glass, have the novel inorganic thermal insulation material of uniform independent closed gap structure.It has kept the chemical stability of unorganic glass fully, has that unit weight is low, thermal conductivity is little, does not burn, characteristics such as physical strength height.Multicellular glass has the good heat-proof quality that can undergo no deterioration in the pyritous wide temperature range at very low temperature.In the multicellular glass production process, reach 560 ℃ of left and right sides pyritous foamed glass blanks according to will be in kiln under the corresponding temperature curve that do not coexist of raw material and size gradually radiating and cooling to the normal temperature state, purpose is to eliminate internal stress to the scope that allows, make multicellular glass obtain stable physical performance, industry slang is called " annealing ".
The thermal conductivity of multicellular glass is very low, and the thermal conductivity ratio regular foam glass of high-performance foam glass is lower, the lower heat radiation that then is unfavorable for blank more of thermal conductivity, so its blank is slower than common foamed glass blank heat radiation, more difficult annealing.Blank is big more to be required higher to annealing, annealing then directly determines the ultimate compression strength and the anti-folding coefficient of finished foam glass, have only through long-time uniform annealing and could eliminate the thermal stresses of foamed glass blank inside, produce the not high-performance foam glass of the low heat conduction of high strength of easy fracture.Suitable annealing speed and annealing curve and uniform furnace temperature are the keys of decision high-performance foam glass annealing technology accurately.Existing pallet car type annealing furnace length is about 98 meters, and annual production only is 10,000 sides, multicellular glass in furnace annealing for up to more than 40 hours.Its mode of movement is to drag chassis by towing mechanism to move in kiln by the timed interval that configures in orbit, and chassis is hauled out the back from the kiln tail and be delivered to kiln hood again outside kiln, enters in the kiln after reconnecting.The multicellular glass blank then is deposited on the chassis by one one, so owing to be that stepped start-stop system drags blank and abuts against together to support mutually avoiding and topple over, such conveying and stacking mode make that the required time of the annealing of blank is also longer.Existing its heating unit of kiln arranges it is the bottom that burner is contained in the burner hearth inlet, low more in the kiln apart from the few more temperature of burner then heat far away more, the temperature that thermopair is detected in the stove will be by regulating the kiln mouth the thermal value and the length of flame of burner repair, regulate comparatively difficulty, need the personnel of operation that rich experience is arranged.Kiln does not have hot air circulating system, and hot gas flow can't stir in the stove, and the temperature difference of furnace roof and furnace bottom is bigger, and the inhomogeneous blank easy fracture that causes of the heat radiation of blank can't be annealed to the high-performance foam glass blank of low heat conduction.Existing in sum pallet car type annealing furnace efficient is low, and product qualified rate is low, is not suitable for the production of high-performance foam glass.
(3) summary of the invention
Technical problem to be solved by this invention is to provide the annealing process and the annealing device of the sectional temperature-controlled foamed glass blank of a kind of continuous conveying, circulation.
The annealing process of described foamed glass blank, described annealing is carried out in kiln, and the mode that adopts guipure to carry is continuously annealed to foamed glass blank, and the kiln fire box temperature is decremented to the normal temperature in exit step by step by the high temperature of ingress.
Further, kiln inside is made as 20～50 lapse of temperature districts.
Further, kiln inside is made as 38 lapse of temperature districts, and preceding 1～32 lapse of temperature district adopts independently temperature control and air cycle, and all the other lapse of temperature districts adopt air cycle.
The annealing device of described foamed glass blank comprises kiln, is provided with the guipure continuous conveying device in the described kiln, and kiln inside is provided with 20～50 lapse of temperature districts from import to outlet, is provided with temperature controlling system in the kiln.
Further, kiln inside is provided with 38 lapse of temperature districts from import to outlet, and preceding 1～32 lapse of temperature district is provided with independently temperature controlling system and air circulation system, and all the other 6 lapse of temperature districts are provided with air circulation system.
Further, the temperature controlling system in preceding 1～10 lapse of temperature district is provided with independently Sweet natural gas heating unit, and the temperature controlling system in the 11st～32 lapse of temperature district is provided with independently electric heater unit.
Further, described temperature controlling system adopts HONEYWELL Mini-scale Distributed Control Systems HC900.
Further, described guipure continuous conveying device is provided with speed detector, and speed detector connects temperature controlling system.
Further, described guipure continuous conveying device is the high temperature resistant guipure of wide cut balanced type, and material is the 12CrSiMo7 stainless steel.
Beneficial effect of the present invention is:
1, adopts guipure to carry blank continuously, realized the continous way operation;
2, adopt cooling step by step in the kiln, realized long-time uniform annealing, thereby produce the not high-performance foam glass of the low heat conduction of high strength of easy fracture;
3, will establish some warm areas in the kiln, thus convenient independent temperature control.
(4) description of drawings
Fig. 1 is the sectional view in the described lapse of temperature of embodiment district.
(5) embodiment
Below by embodiment the present invention is made preferably specific description, but protection scope of the present invention is not limited to this.
With reference to Fig. 1, a kind of annealing device of foamed glass blank comprises kiln 1, is provided with guipure continuous conveying device 2 in the described kiln 1, and kiln inside is provided with 20～50 lapse of temperature districts from import to outlet, is provided with temperature controlling system 3 in the kiln.
Kiln inside is provided with 38 lapse of temperature districts from import to outlet, and preceding 1～32 lapse of temperature district is provided with independently temperature controlling system 3 and air circulation system 4, and all the other 6 lapse of temperature districts are provided with air circulation system.The temperature controlling system in preceding 1～10 lapse of temperature district is provided with independently, and the temperature controlling system in 5, the 11～32 lapse of temperature districts of Sweet natural gas heating unit is provided with independently electric heater unit 6.
Described temperature controlling system adopts HONEYWELL Mini-scale Distributed Control Systems HC900.
Described guipure continuous conveying device 2 is provided with speed detector, and speed detector connects temperature controlling system.
Described guipure continuous conveying device 2 is the high temperature resistant guipure of wide cut balanced type, and material is the 12CrSiMo7 stainless steel.
In the annealing process, guipure continuous conveying device 2 can at the uniform velocity drag blank 7 and move in kiln, and foamed glass blank 7 enters kiln with the timed interval of 30～60 seconds/piece, finishes its annealing process and be sent to the outlet of kiln in the process of carrying.Guipure is provided with speed detector, and the heating unit when guipure does not move in the stove can not be activated, when guipure in production run since fault when out of service Controlling System also can cut off heating system immediately and send guard signal.The circulating air system can guarantee that then the spatial temperature is even in each warm area.HONEYWELL Mini-scale Distributed Control Systems HC900 long-range heating unit and air circulation system to each warm area of whole piece stove in Master Control Room carries out centralized Control, and the temperature signal by temperature measuring system feedback monitors furnace temperature and revises.
Claims (9)
1, a kind of annealing process of foamed glass blank, described annealing is carried out in kiln, it is characterized in that: the mode that adopts guipure to carry is continuously annealed to foamed glass blank, and the kiln fire box temperature is decremented to the normal temperature in exit step by step by the high temperature of ingress.
2, the annealing process of foamed glass blank according to claim 1 is characterized in that: kiln inside is made as 20～50 lapse of temperature districts.
3, the annealing process of foamed glass blank according to claim 2, it is characterized in that: kiln inside is made as 38 lapse of temperature districts, preceding 1～32 lapse of temperature district adopts independently temperature control and air cycle, and all the other lapse of temperature districts adopt air cycle.
4, a kind of annealing device of foamed glass blank comprises kiln, it is characterized in that: be provided with the guipure continuous conveying device in the described kiln, kiln inside is provided with 20～50 lapse of temperature districts from import to outlet, is provided with temperature controlling system in the kiln.
5, the annealing device of foamed glass blank according to claim 4, it is characterized in that: kiln inside is provided with 38 lapse of temperature districts from import to outlet, preceding 1～32 lapse of temperature district is provided with independently temperature controlling system and air circulation system, and all the other 6 lapse of temperature districts are provided with air circulation system.
6, the annealing device of foamed glass blank according to claim 5, it is characterized in that: the temperature controlling system in preceding 1～10 lapse of temperature district is provided with independently Sweet natural gas heating unit, and the temperature controlling system in the 11st～32 lapse of temperature district is provided with independently electric heater unit.
7, according to the annealing device of claim 5 or 6 described foamed glass blanks, it is characterized in that: described temperature controlling system adopts HONEYWELL Mini-scale Distributed Control Systems HC900.
8, the annealing device of foamed glass blank according to claim 4 is characterized in that: described guipure continuous conveying device is provided with speed detector, and speed detector connects temperature controlling system.
9, the annealing device of foamed glass blank according to claim 4 is characterized in that: described guipure continuous conveying device is the high temperature resistant guipure of wide cut balanced type, and material is the 12CrSiMo7 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100628636A CN101306916B (en) | 2008-06-30 | 2008-06-30 | Annealing process and equipment for foamed glass blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100628636A CN101306916B (en) | 2008-06-30 | 2008-06-30 | Annealing process and equipment for foamed glass blank |
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| Publication Number | Publication Date |
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| CN101306916A true CN101306916A (en) | 2008-11-19 |
| CN101306916B CN101306916B (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100628636A Active CN101306916B (en) | 2008-06-30 | 2008-06-30 | Annealing process and equipment for foamed glass blank |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020840A3 (en) * | 2009-08-17 | 2011-05-19 | Sg Schaumglas Gmbh & Co. Kg | Production of foam glass plates and associated devices |
| DE102010011650A1 (en) * | 2010-03-17 | 2011-09-22 | Ernst Pennekamp Gmbh & Co. Ohg | Process for the manufacture of products made of foamed glass and other blown fabrics, as well as the product and furnace for carrying out the process |
| CN103964679A (en) * | 2014-05-19 | 2014-08-06 | 浙江华尔绝热科技有限公司 | Tunnel type cellular glass annealing kiln |
| CN108017264A (en) * | 2017-12-13 | 2018-05-11 | 重庆市合川区金星玻璃制品有限公司 | Foamed glass blank annealing device |
| TWI757084B (en) * | 2021-02-04 | 2022-03-01 | 富鴻系統科技股份有限公司 | Heating furnace structure, foam glass manufacturing equipment and manufacturing method thereof |
-
2008
- 2008-06-30 CN CN2008100628636A patent/CN101306916B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020840A3 (en) * | 2009-08-17 | 2011-05-19 | Sg Schaumglas Gmbh & Co. Kg | Production of foam glass plates and associated devices |
| DE102010011650A1 (en) * | 2010-03-17 | 2011-09-22 | Ernst Pennekamp Gmbh & Co. Ohg | Process for the manufacture of products made of foamed glass and other blown fabrics, as well as the product and furnace for carrying out the process |
| CN103964679A (en) * | 2014-05-19 | 2014-08-06 | 浙江华尔绝热科技有限公司 | Tunnel type cellular glass annealing kiln |
| CN108017264A (en) * | 2017-12-13 | 2018-05-11 | 重庆市合川区金星玻璃制品有限公司 | Foamed glass blank annealing device |
| CN108017264B (en) * | 2017-12-13 | 2020-05-12 | 重庆市合川区金星玻璃制品有限公司 | Foam glass blank annealing device |
| TWI757084B (en) * | 2021-02-04 | 2022-03-01 | 富鴻系統科技股份有限公司 | Heating furnace structure, foam glass manufacturing equipment and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101306916B (en) | 2010-07-28 |
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Owner name: ZHEJIANG ZHENSHEN COLD INSULATION TECHNOLOGY CO., Free format text: FORMER NAME: ZHEJIANG ZHENSHEN THERMAL INSULATION TECHNOLOGY CO., LTD. |
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Address after: 314011, Zhejiang, Xiuzhou District, Jiaxing Wang Zhen town on the west side of the road Patentee after: ZHEJIANG ZHENSHEN COLD INSULATION TECHNOLOGY CO., LTD. Address before: 314011, Zhejiang, Xiuzhou District, Jiaxing Wang Zhen town on the west side of the road Patentee before: Zhejiang Zhenshen Thermal Insulation Technology Co., Ltd. |
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Address after: 314011, Zhejiang, Xiuzhou District, Jiaxing Wang Zhen, west side of the two road, along the west side of Tong Road Patentee after: ZHEJIANG ZHENSHEN COLD INSULATION TECHNOLOGY CO., LTD. Address before: 314011, Zhejiang, Xiuzhou District, Jiaxing Wang Zhen town on the west side of the road Patentee before: ZHEJIANG ZHENSHEN COLD INSULATION TECHNOLOGY CO., LTD. |