CN104374175A - Online continuous infrared-microwave drying device of glass fiber core materials - Google Patents
Online continuous infrared-microwave drying device of glass fiber core materials Download PDFInfo
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- CN104374175A CN104374175A CN201310349055.9A CN201310349055A CN104374175A CN 104374175 A CN104374175 A CN 104374175A CN 201310349055 A CN201310349055 A CN 201310349055A CN 104374175 A CN104374175 A CN 104374175A
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Abstract
The invention discloses an online continuous infrared-microwave drying device of glass fiber core materials. The online continuous infrared-microwave drying device comprises a tank, a microwave power source, a microwave transmission part, microwave irradiation units, a temperature monitor, a vacuum pump, a conveying belt and a metal shield. The online continuous infrared-microwave drying device is characterized in that the bottom of the tank is provided with a closable channel, the channel is connected with the vacuum pump, the vacuum pump is provided with a function of continuously sucking the gas inside the tank, and a stable negative-pressure state in the tank can be guaranteed. The microwave transmission part can divide a single microwave source into a plurality of microwaves uniformly, and the glass fiber core materials can be uniformly heated. The online continuous infrared-microwave drying device has the advantages that the online continuous infrared-microwave drying device has a plurality of microwave heating bands, the internal gas in the oven can be continuously sucked, and high drying efficiency is realized. The infrared-microwave drying device can be used for drying wet and viscose materials and for drying the glass fiber core materials.
Description
Technical field
The present invention relates to a kind of drying unit, particularly relate to a kind of infrared microwave on-line continuous drying unit of glass fibre core.
Background technology
Glass fibre is a kind of Inorganic Non-metallic Materials of excellent performance, has good insulating, heat resistance is strong, corrosion resistance good, the feature that mechanical strength is high, usually for electrically insulating material, heat-insulating material and fire-proof shield material.Glass fibre is carried out pull an oar, after mixed slurry, shaping and stoving process, the glass fiber wet mat of high-durability, excellent heat-insulating property can be obtained.Glass fiber wet mat has the feature of high porosity, High water cut, quantitative 50 ~ 400g/m
2, thickness 0.2 ~ 8mm, intensity is lower.Glass fiber wet mat is carried out vacuumizing process, loads multilayer Obstruct membrane material, energy-efficient vacuum heat-insulating plate (VIP) after carrying out soldering, can be obtained.Under normal circumstances, the glass fiber wet mat as VIP core texture is called as glass fibre core.
Energy-efficient VIP requires that glass fibre core has extremely low moisture content, to ensure its low thermal conductivity factor.At present, adopt the hot air drier of one side Hot-blast Heating to carry out drying and processing to glass fibre core in most cases, consume energy huge.In addition, the temperature of hot blast is higher than the temperature in casing, and that is, hot blast directly blows to the baking temperature of baking temperature higher than another side in felt face.This makes the dry tenacity on the two sides of core inconsistent, and the dry tenacity of the one side that temperature is high is large, and can strengthen along with this difference of increase of core thickness.According to data, the absorbent of glass fiber wet mat reduces with the rising of baking temperature, and the difference of baking temperature causes the absorbent on glass fibre belt two sides different.Particularly, baking temperature more than 300 DEG C after, glass fibre core can be subject to the impact of hot blast, and occur Surface hardened layer phenomenon, flexibility decrease is more, affects the serviceability of finished product after product reprocessing.
Microwave heating technique can improve the drying efficiency of glass fibre core effectively, have that thermal loss is little, energy-conserving and environment-protective, the plurality of advantages such as easy to operate, be the most effective current green stoving process, receive the extensive attention of people.
The patent No. be ZL200310101584.3 patent of invention on disclose a kind of double micro-wave oven making baking box.The inner surface of the heating clamber of this micro-wave oven is coated with far infrared generation film, electric heating body is arranged on the top of heating clamber, can realize sending far infrared under the condition not having annex, simplifies the structure of body of heater.
The patent No. be ZL200810231466.7 patent of invention on disclose a kind of radiationless micro-wave oven.Body of heater and the fire door of this micro-wave oven all adopt metal shield, and body of heater or fire door have the camera be communicated with cooking cavity.The holding wire of camera is connected with display, reaches radiation protection ability strong and reduce it to the beneficial effect of human injury.
The patent No. be ZL201110295378.5 patent of invention on disclose a kind of hybrid microwave sintering process of mullite composite material.By the acting in conjunction of auxiliary heating with insulation combined unit, make mullite composite material can absorb far infrared wave rapidly, achieve the object of burning till fast.
Glass fibre has the characteristic of water suction, oil suction: meanwhile, and the diameter of glass fibre is only between several micron to twenties microns.That many tiny glass fibres are overlapped to form 3-D solid structure, that there is micron order hole core.Glass fibre core is made to have higher temperature by heating.Meanwhile, the gas that glass fibre core inside volatilizes is had only and could fully be excreted by the inner small pore of core, reaches the effect of drying completely.Thus, conventional Hot-blast Heating and heating using microwave can not realize efficient oven dry.In addition, microwave has material and selectively adds thermal property, and namely material can only could farthest absorb microwave energy and convert thereof into heat energy in certain frequency band.Adjust optimal microwave frequency, to reach the drying effect of glass fibre core the best, become the knotty problem in current microwave drying field.
Summary of the invention
Technical problem to be solved by this invention overcomes the low shortcoming of the drying efficiency of existing drying unit, provides a kind of infrared microwave on-line continuous drying unit of glass fibre core.This infrared microwave drying unit can be used for drying wet stock and viscous material, also may be used for drying glass fibre core.
For solving the problem, the invention provides a kind of infrared microwave on-line continuous drying unit of glass fibre core, this infrared microwave on-line continuous drying unit is made up of casing, microwave power supply, Microwave emission portion, microwave irradiation unit, temperature monitoring, vavuum pump, conveyer belt and metal shielding, it is characterized in that described bottom half has a closeable duct, this duct is connected with vavuum pump.Described casing is cuboid or cylindrical shape, and the entrance and exit of casing is semiclosed; In whole casing, temperature presents the low feature in middle high both sides according to length direction.Described microwave irradiation portion is connected to microwave power supply, adjustable microwave input power.Described Microwave emission portion is connected to multiple microwave irradiation unit adjacent one another are; Single microwave energy is divided into the multiple microwaves corresponding to microwave irradiation number of unit by Microwave emission portion equably, can heat the material below microwave irradiation unit equably.Described temperature monitoring is connected to multiple thermocouple temperature sensitive sensor; Thermocouple temperature sensitive sensor is positioned over the multiple position of box house, accurately can detect the temperature of the multiple position of box house.Described vavuum pump has the function of continuous drawing box house gas, can ensure that box house has a stable negative pressure state.Described conveyer belt adopts polytetrafluoroethylene (PTFE) and/polypropylene and the engineering plastics such as/polyethylene and/polysulfones and/or glass and/or porcelain material.
Compared with existing infrared microwave drying unit and method thereof, the invention has the advantages that: the infrared microwave on-line continuous drying unit of a kind of glass fibre core described in (1) has the function of continuous drawing oven interior gas, for the moisture extraction of wet stock provides subnormal ambient, be convenient to the effusion of wet stock internal gas, improve drying efficiency; (2) there is excellent capability of electromagnetic shielding, solve the safety problem of operator; (3) there is multiple heating using microwave frequency range, can be multiple wet stock and stickum provides oven dry.
Accompanying drawing explanation
Fig. 1 is the infrared microwave on-line continuous drying unit structural representation of a kind of glass fibre core of the present invention.
Mark in figure: 10 conveyer belts, 20 casings, 30 temperature monitorings, 40 microwave irradiation unit, 50 Microwave emission portions, 60 microwave power supplys, 70 vavuum pumps.
Specific implementation method
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims and limited.
Embodiment
With reference to Fig. 1, the infrared microwave on-line continuous drying unit of a kind of glass fibre core described in the present embodiment comprises: 10 conveyer belts, 20 casings, 30 temperature monitorings, 40 microwave irradiation unit, 50 Microwave emission portions, 60 microwave power supplys, 70 vavuum pumps.
This infrared microwave on-line continuous drying unit is when making, and concrete steps are as follows:
(1) make one long be 20m, wide be 1.5m polytetrafluoroethylene (PTFE) conveyer belt, zone face is opened the circular port of φ 10mm;
(2) make the rectangular box body of the stainless steel casing of a 21m*2.5m*1.8m, two surfaces in casing elongatedness direction all have the rectangular opening of a 1.7m*0.4m;
(3) Microwave emission portion, microwave power supply and temperature detector are installed on the upper surface of casing, microwave irradiation cellular installation is in box house;
(4) have the duct of a φ 20mm every 5m at the bottom elongatedness of rectangular box body, duct is connected with vavuum pump.
Above are only several detailed description of the invention of the present invention, but design concept of the present invention is not limited thereto, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should belong to the behavior of invading the scope of protection of the invention.
Claims (7)
1. the infrared microwave on-line continuous drying unit of a glass fibre core, be made up of casing, microwave power supply, Microwave emission portion, microwave irradiation unit, temperature monitoring, vavuum pump, conveyer belt and metal shielding, it is characterized in that described bottom half has a closeable duct, this duct is connected with vavuum pump.
2. infrared microwave on-line continuous drying unit according to claim 1, it is characterized in that described casing is cuboid or cylindrical shape, the entrance and exit of casing is semiclosed; In whole casing, temperature presents the low feature in middle high both sides according to length direction.
3. infrared microwave on-line continuous drying unit according to claim 1, is characterized in that described microwave irradiation portion is connected to microwave power supply, adjustable microwave input power.
4. infrared microwave on-line continuous drying unit according to claim 1, is characterized in that described Microwave emission portion is connected to multiple microwave irradiation unit adjacent one another are; Single microwave energy is divided into the multiple microwaves corresponding to microwave irradiation number of unit by Microwave emission portion equably, can heat the material below microwave irradiation unit equably.
5. infrared microwave on-line continuous drying unit according to claim 1, is characterized in that described temperature monitoring being connected to multiple thermocouple temperature sensitive sensor; Thermocouple temperature sensitive sensor is positioned over the multiple position of box house, accurately can detect the temperature of the multiple position of box house.
6. infrared microwave on-line continuous drying unit according to claim 1, is characterized in that described vavuum pump has the function of continuous drawing box house gas, can ensure that box house has a stable negative pressure state.
7. infrared microwave on-line continuous drying unit according to claim 1, is characterized in that described conveyer belt adopts polytetrafluoroethylene (PTFE) and/polypropylene and the engineering plastics such as/polyethylene and/polysulfones and/or glass and/or porcelain material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310349055.9A CN104374175A (en) | 2013-08-12 | 2013-08-12 | Online continuous infrared-microwave drying device of glass fiber core materials |
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| CN201310349055.9A CN104374175A (en) | 2013-08-12 | 2013-08-12 | Online continuous infrared-microwave drying device of glass fiber core materials |
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| CN104374175A true CN104374175A (en) | 2015-02-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI548848B (en) * | 2015-11-20 | 2016-09-11 | 財團法人金屬工業研究發展中心 | Microwave heating and drying device |
| CN106430224A (en) * | 2016-09-30 | 2017-02-22 | 昆山蓝胜建材有限公司 | Microwave drying oven and method for preparing sodium silicate aerogel by utilizing microwave drying method |
| CN109282597A (en) * | 2018-11-01 | 2019-01-29 | 南京仁恒轴承滚动体有限公司 | A kind of needle roller drying device |
| CN109405420A (en) * | 2018-10-29 | 2019-03-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of hot galvanizing microwave drying heating device |
| TWI664386B (en) * | 2018-10-12 | 2019-07-01 | National Formosa University | Device for phase-shift energy consistency of standing waves |
| CN114502516A (en) * | 2019-09-27 | 2022-05-13 | 欧文斯科宁知识产权资产有限公司 | Method for drying wet glass fiber forming pack |
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| US20020006464A1 (en) * | 1998-02-04 | 2002-01-17 | Michael Wefers | Method and apparatus for drying or heat-treating products |
| CN101282600A (en) * | 2007-04-06 | 2008-10-08 | 财团法人食品工业发展研究所 | Continuous microwave heating apparatus |
| CN102200373A (en) * | 2010-03-26 | 2011-09-28 | 中国农业机械化科学研究院 | Vacuum freeze-drying tester |
| CN102829614A (en) * | 2012-09-20 | 2012-12-19 | 天津市永昌焊丝有限公司 | Welding rod drying equipment used for manufacturing electrode rods |
| CN202734453U (en) * | 2012-08-13 | 2013-02-13 | 国家海洋局第三海洋研究所 | Vacuum continuous dryer for simulation control of microwave and infrared integration heating source |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020006464A1 (en) * | 1998-02-04 | 2002-01-17 | Michael Wefers | Method and apparatus for drying or heat-treating products |
| CN101282600A (en) * | 2007-04-06 | 2008-10-08 | 财团法人食品工业发展研究所 | Continuous microwave heating apparatus |
| CN102200373A (en) * | 2010-03-26 | 2011-09-28 | 中国农业机械化科学研究院 | Vacuum freeze-drying tester |
| CN202734453U (en) * | 2012-08-13 | 2013-02-13 | 国家海洋局第三海洋研究所 | Vacuum continuous dryer for simulation control of microwave and infrared integration heating source |
| CN102829614A (en) * | 2012-09-20 | 2012-12-19 | 天津市永昌焊丝有限公司 | Welding rod drying equipment used for manufacturing electrode rods |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI548848B (en) * | 2015-11-20 | 2016-09-11 | 財團法人金屬工業研究發展中心 | Microwave heating and drying device |
| CN106430224A (en) * | 2016-09-30 | 2017-02-22 | 昆山蓝胜建材有限公司 | Microwave drying oven and method for preparing sodium silicate aerogel by utilizing microwave drying method |
| TWI664386B (en) * | 2018-10-12 | 2019-07-01 | National Formosa University | Device for phase-shift energy consistency of standing waves |
| CN109405420A (en) * | 2018-10-29 | 2019-03-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of hot galvanizing microwave drying heating device |
| CN109282597A (en) * | 2018-11-01 | 2019-01-29 | 南京仁恒轴承滚动体有限公司 | A kind of needle roller drying device |
| CN114502516A (en) * | 2019-09-27 | 2022-05-13 | 欧文斯科宁知识产权资产有限公司 | Method for drying wet glass fiber forming pack |
| US11981599B2 (en) | 2019-09-27 | 2024-05-14 | Owens Corning Intellectual Capital, Llc | Process for drying wet glass fibre forming packages |
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Application publication date: 20150225 |