CN103638888A - Vertical high-temperature microwave device for preparing fluorescent powder - Google Patents

Vertical high-temperature microwave device for preparing fluorescent powder Download PDF

Info

Publication number
CN103638888A
CN103638888A CN201310699694.8A CN201310699694A CN103638888A CN 103638888 A CN103638888 A CN 103638888A CN 201310699694 A CN201310699694 A CN 201310699694A CN 103638888 A CN103638888 A CN 103638888A
Authority
CN
China
Prior art keywords
temperature microwave
high temperature
microwave cavity
vertical high
cavity
Prior art date
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.)
Granted
Application number
CN201310699694.8A
Other languages
Chinese (zh)
Other versions
CN103638888B (en
Inventor
王达健
李蕊
迪尼斯·阿格拉沃尔
马健
王延泽
孙亮
宋维伟
李广浩
毛智勇
陆启飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University of Technology
Original Assignee
Tianjin University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin University of Technology filed Critical Tianjin University of Technology
Priority to CN201310699694.8A priority Critical patent/CN103638888B/en
Publication of CN103638888A publication Critical patent/CN103638888A/en
Application granted granted Critical
Publication of CN103638888B publication Critical patent/CN103638888B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention discloses a vertical high-temperature microwave device for preparing fluorescent powder. The vertical high-temperature microwave device consists of a closed box, a vertical high-temperature microwave oven, a vibrating feeder and a microwave generator, wherein the vertical high-temperature microwave oven comprises an oven body, a high-temperature microwave cavity, a spiral feeder and a heat-preserving layer; the high-temperature microwave cavity penetrates through central circular holes in upper and lower covers of the oven body, and is provided with a charging hole, a discharging hole, an air inlet, an air outlet and a square hole; the heat-preserving layer is arranged between the high-temperature microwave cavity and the oven body; the spiral feeder is positioned in a cylinder of the high-temperature microwave cavity; a spiral rod are is with an inner ring of a bearing; the spiral rod is connected with a motor-speed reducer; the microwave generator is positioned on the side surface of the vertical high-temperature microwave oven; a square waveguide opening of the microwave generator is positioned at the square hole of the high-temperature microwave cavity. The vertical high-temperature microwave device for preparing the fluorescent powder has the advantages that the device is simple in structure and easy to operate, and can realize continuous production; reaction gas is in countercurrent contact with granular materials in the vertical high-temperature microwave oven, the reaction is complete, and the remarkable technical effects of environment friendliness, energy conservation, quickness and high efficiency are achieved.

Description

A kind of vertical high-temperature microwave device for the preparation of fluorescent material
Technical field
The invention belongs to rare-earth luminescent material technology of preparing, particularly a kind of vertical high-temperature microwave device for the preparation of fluorescent material.
Background technology
The high temperature sintering method of fluorescent material is the conventional method of preparing rare-earth luminescent material, and major defect has: 1) burn till that product crystal grain is large, density is high, hardness is large, conventionally all need ball milling; 2) firing temperature is higher, the reaction time is long, and product is long cool time, and product, except principal crystalline phase, exists a small amount of middle phase toward contact; 3) the calcining energy of higher temperature consumes high.The high temperature microwave solid phase synthesis technique of fluorescent material is that the interaction between applied microwave electromagnetic field and dielectric solid is converted into electromagnetic energy the synthetic method of high temperature that heat energy is realized new material, have save time, space, save energy consumption, the series of advantages such as operating automation degree height.Conventionally high temperature microwave burns till the high temperature microwave stove that adopts bell-jar, in order to realize continuous production, has developed the high temperature microwave tunnel cave calcination equipment of horizontal, and major defect is that contacting of reducing gas and solid material is insufficient, and gas consumption is large; Body of heater is unfavorable for insulation, and heat energy dissipates large, and the material motion in the horizontal direction power of borrowing increases in transmission mechanism power consumption.In order to realize high efficiency continuous production, need to research and develop new high temperature microwave process for calcining.
Summary of the invention
The object of the invention is for above-mentioned technical Analysis and existing problems, a kind of vertical high-temperature microwave device for the preparation of fluorescent material is provided, this vertical high-temperature wave device structure is simple, easy operating, can realize serialization and produce; Reacting gas and granular material counter current contacting in vertical high-temperature micro-wave oven, sufficient reacting, has environmental protection, energy-conservation, remarkable technique effect fast and efficiently.
Technical scheme of the present invention:
A kind of vertical high-temperature microwave device for the preparation of fluorescent material, by vertical high-temperature micro-wave oven, oscillating feeder and microwave generator, formed, vertical high-temperature micro-wave oven comprises body of heater, high temperature microwave cavity, feeding screw and heat-insulation layer, body of heater is closed cylinder, and the upper cover of cylinder is respectively equipped with lower cover the center hole that diameter is identical; High temperature microwave cavity is closed pipe, the base plate of pipe is provided with center small sircle hole, high temperature microwave cavity is fixing through center hole the sealing of furnace upper cover and lower cover, the upper and lower end side of high temperature microwave cavity is respectively equipped with charging aperture, gas outlet, air inlet and discharging opening, high temperature microwave cavity sidewall on be respectively equipped with the square hole mating with microwave generator waveguide square orifice; It between high temperature microwave cavity and body of heater, is heat-insulation layer; Feeding screw is positioned at high temperature microwave cavity, comprise upper and lower bearing, screw rod and motor-decelerator, the bearing block of upper and lower bearing is fixed with top board and the base plate of high temperature microwave cavity respectively, screw rod is fixed with the inner ring of upper and lower bearing respectively, the center small sircle hole of screw rod lower end hermetically passing high temperature microwave well floor is connected with motor-decelerator, and the circumferential outer edge of screw rod and high temperature microwave cavity inner wall slide and join; Oscillating feeder is positioned at the top of charging aperture; Microwave generator is arranged at the side of vertical high-temperature micro-wave oven, and the waveguide square orifice of microwave generator is positioned the square hole place of high temperature microwave cavity through furnace body wall and heat-insulation layer.
Working procedure of the present invention:
Granular material through oscillating feeder continuous and quantitative by charging aperture to charging in high temperature microwave cavity, material moves down by screw rod; The reacting gas being mixed by nitrogen and hydrogen is entered by air inlet, by gas outlet, discharges; The microwave being produced by microwave generator make material at high temperature sintering obtain fluorescent material.
Advantage of the present invention is: this vertical high-temperature wave device structure is simple, easy operating, can realize serialization and produce; Reacting gas and granular material counter current contacting in vertical high-temperature micro-wave oven, sufficient reacting, has environmental protection, energy-conservation, remarkable technique effect fast and efficiently.
[accompanying drawing explanation]
Fig. 1 is the structural representation of this vertical high-temperature microwave device.
In figure: 1. vertical high-temperature micro-wave oven 2. oscillating feeder 3. microwave generator 4. bodies of heater
5. high temperature microwave cavity 6. feeding screw 7. heat-insulation layer 8. charging aperture 9. gas outlet 10. air inlet 11. discharging opening 12. square hole 13. bearing 14. screw rod 15. motors-decelerators
[specific embodiment]
Following instance is descriptive, is not determinate, can not limit protection scope of the present invention with this.
Embodiment:
A kind of vertical high-temperature microwave device for the preparation of fluorescent material, by vertical high-temperature micro-wave oven 1, oscillating feeder 2 and microwave generator 3, formed, vertical high-temperature micro-wave oven 1 comprises body of heater 4, high temperature microwave cavity 5, feeding screw 6 and heat-insulation layer 7, body of heater 4 is closed cylinder, and the upper cover of cylinder is respectively equipped with lower cover the center hole that diameter is identical; High temperature microwave cavity 5 is closed pipe, the base plate of pipe is provided with center small sircle hole, high temperature microwave cavity 5 is fixing through center hole the sealing of body of heater 4 upper covers and lower cover, the upper and lower end side of high temperature microwave cavity 5 is respectively equipped with charging aperture 8, gas outlet 9, air inlet 10 and discharging opening 11, high temperature microwave cavity 5 sidewall on uniform four square holes 12 that mate with microwave generator 3 waveguide square orifices; Between high temperature microwave cavity 5 and body of heater 4, it is heat-insulation layer 7; Feeding screw 6 is positioned at high temperature microwave cavity 5, comprise upper and lower bearing 13, screw rod 14 and motor-decelerator 15, the bearing block of upper and lower bearing 13 is fixed with top board and the base plate of high temperature microwave cavity 5 respectively, screw rod 14 is fixed with the inner ring of upper and lower bearing 13 respectively, the center small sircle hole of screw rod 14 lower end hermetically passing high temperature microwave cavity 5 base plates is connected with motor-decelerator 15, and the circumferential outer edge of screw rod 14 and high temperature microwave cavity 5 inwalls slide and join; Oscillating feeder 2 is positioned at the top of charging aperture 8; Microwave generator 3 is arranged at the side of vertical high-temperature micro-wave oven 1, and the waveguide square orifice of microwave generator 3 is positioned square hole 12 places of high temperature microwave cavity 5 through body of heater 4 walls and heat-insulation layer 7.
In this embodiment, the internal diameter of vertical high-temperature micro-wave oven is that 70 ㎝, wall thickness are 0.3 ㎝; High temperature microwave cavity is iron pipe, its internal diameter be 10 ㎝, wall thickness be 0.5 ㎝, highly for 4m; The HMG-2100 microwave generator that microwave generator adopts four Newman He Rui microwave companies to produce; The rotating speed of screw rod is 0.07r/min; Insulation material is jacket crown 1500 ceramic beaverboards of Shanghai jacket crown Refractory Co., ltd.
This vertical high-temperature microwave device is prepared the technological parameter of fluorescent material: raw material is AMgSi 2o 8: Eu 2+, Mn 2+(A=Ca, Sr, Ba), particle diameter are 5-15 μ m; Reacting gas is that the nitrogen of volume ratio 95:5 and the gaseous mixture of hydrogen, charge flow rate are 2L/min; The frequency of microwave source is 2.45GHz; Reaction temperature is that 1300 ℃, reaction time are 7h.
The above embodiment has only expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (1)

1. the vertical high-temperature microwave device for the preparation of fluorescent material, it is characterized in that: by vertical high-temperature micro-wave oven, oscillating feeder and microwave generator, formed, vertical high-temperature micro-wave oven comprises body of heater, high temperature microwave cavity, feeding screw and heat-insulation layer, body of heater is closed cylinder, and the upper cover of cylinder is respectively equipped with lower cover the center hole that diameter is identical; High temperature microwave cavity is closed pipe, the base plate of pipe is provided with center small sircle hole, high temperature microwave cavity is fixing through center hole the sealing of furnace upper cover and lower cover, the upper and lower end side of high temperature microwave cavity is respectively equipped with charging aperture, gas outlet, air inlet and discharging opening, high temperature microwave cavity sidewall on be respectively equipped with the square hole mating with microwave generator waveguide square orifice; It between high temperature microwave cavity and body of heater, is heat-insulation layer; Feeding screw is positioned at high temperature microwave cavity, comprise upper and lower bearing, screw rod and motor-decelerator, the bearing block of upper and lower bearing is fixed with top board and the base plate of high temperature microwave cavity respectively, screw rod is fixed with the inner ring of upper and lower bearing respectively, the center small sircle hole of screw rod lower end hermetically passing high temperature microwave well floor is connected with motor-decelerator, and the circumferential outer edge of screw rod and high temperature microwave cavity inner wall slide and join; Oscillating feeder is positioned at the top of charging aperture; Microwave generator is arranged at the side of vertical high-temperature micro-wave oven, and the waveguide square orifice of microwave generator is positioned the square hole place of high temperature microwave cavity through furnace body wall and heat-insulation layer.
CN201310699694.8A 2013-12-19 2013-12-19 Vertical high-temperature microwave device for preparing fluorescent powder Expired - Fee Related CN103638888B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310699694.8A CN103638888B (en) 2013-12-19 2013-12-19 Vertical high-temperature microwave device for preparing fluorescent powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310699694.8A CN103638888B (en) 2013-12-19 2013-12-19 Vertical high-temperature microwave device for preparing fluorescent powder

Publications (2)

Publication Number Publication Date
CN103638888A true CN103638888A (en) 2014-03-19
CN103638888B CN103638888B (en) 2015-05-20

Family

ID=50244255

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310699694.8A Expired - Fee Related CN103638888B (en) 2013-12-19 2013-12-19 Vertical high-temperature microwave device for preparing fluorescent powder

Country Status (1)

Country Link
CN (1) CN103638888B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168306A (en) * 2017-12-18 2018-06-15 重庆中色新材料有限公司 A kind of heating furnace

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5946816A (en) * 1998-03-09 1999-09-07 Lockheed Martin Energy Systems, Inc. Continuous microwave regeneration apparatus for absorption media
CN201058859Y (en) * 2006-12-18 2008-05-14 天津理工大学 Microwave firing device for rare earth fluorescent powder material
CN201252654Y (en) * 2008-04-15 2009-06-03 上海鸿泽企业发展有限公司 Spiral conveying and agitating type microwave heating device
CN201634625U (en) * 2009-12-15 2010-11-17 成都纽曼和瑞微波技术有限公司 Microwave low-temperature refuse pyrolysis device
WO2011010763A1 (en) * 2009-07-24 2011-01-27 Kim Sang Hyeog Rapid drying apparatus for processing a large amount of sludge, and rapid drying method of sludge thereby
CN102305524A (en) * 2011-07-15 2012-01-04 东华大学 Minitype device and method for processing kitchen garbage
CN102305541A (en) * 2011-08-19 2012-01-04 长沙隆泰微波热工有限公司 Sintering furnace formed by combining microwaves and heat source
CN102393132A (en) * 2011-11-14 2012-03-28 山东博润工业技术有限公司 Vertical microwave drying coal furnace
CN202329027U (en) * 2011-11-14 2012-07-11 山东博润工业技术有限公司 Vertical microwave drying coal furnace

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5946816A (en) * 1998-03-09 1999-09-07 Lockheed Martin Energy Systems, Inc. Continuous microwave regeneration apparatus for absorption media
CN201058859Y (en) * 2006-12-18 2008-05-14 天津理工大学 Microwave firing device for rare earth fluorescent powder material
CN201252654Y (en) * 2008-04-15 2009-06-03 上海鸿泽企业发展有限公司 Spiral conveying and agitating type microwave heating device
WO2011010763A1 (en) * 2009-07-24 2011-01-27 Kim Sang Hyeog Rapid drying apparatus for processing a large amount of sludge, and rapid drying method of sludge thereby
CN201634625U (en) * 2009-12-15 2010-11-17 成都纽曼和瑞微波技术有限公司 Microwave low-temperature refuse pyrolysis device
CN102305524A (en) * 2011-07-15 2012-01-04 东华大学 Minitype device and method for processing kitchen garbage
CN102305541A (en) * 2011-08-19 2012-01-04 长沙隆泰微波热工有限公司 Sintering furnace formed by combining microwaves and heat source
CN102393132A (en) * 2011-11-14 2012-03-28 山东博润工业技术有限公司 Vertical microwave drying coal furnace
CN202329027U (en) * 2011-11-14 2012-07-11 山东博润工业技术有限公司 Vertical microwave drying coal furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168306A (en) * 2017-12-18 2018-06-15 重庆中色新材料有限公司 A kind of heating furnace

Also Published As

Publication number Publication date
CN103638888B (en) 2015-05-20

Similar Documents

Publication Publication Date Title
CN103359724B (en) Continuous induction graphitizing system
CN103822464B (en) A kind of continous way mineral little material, powder hot industry microwave calcination stove
Ling et al. Optimisation on the stability of CaO-doped partially stabilised zirconia by microwave heating
CN101125653B (en) Method for synthesizing homogeneous nano silicon carbide powder by burning
CN107758670B (en) Preparation method of boron carbide superfine powder
CN103819202B (en) A kind of stupalith sintering oven and isostatic pressed field control plasma agglomeration method
CN103588182A (en) Method for preparing spherical aluminum nitride powder
CN103833406B (en) Exterior insulation and preparation method thereof
CN108083658A (en) A kind of induction heating apparatus and its method for producing light calcined magnesia
JP2022171629A (en) PROCESS FOR PRODUCING MICROCRYSTALLINE α-ALUMINA BY MICROWAVE CALCINATION
CN103638888B (en) Vertical high-temperature microwave device for preparing fluorescent powder
CN203938607U (en) A kind of stupalith sintering oven
CN101734710A (en) Method for preparing zinc stannate semiconductor functional material
CN104692432B (en) A kind of fluidizing type producing Alpha-alumina stops conversion system and method for transformation
CN103224398A (en) Nitride ceramic material microwave sintering method
CN103943855A (en) Preparation method of positive electrode material of lithium iron phosphate battery
CN107311209B (en) A kind of carbon/calcium aluminate composite powder and preparation method thereof
Rocha et al. Structural characterization of bismuth rare earth tungstates obtained by fast microwave-assisted solid-state synthesis
Hwang et al. Calcination of mega-crystalline calcite using microwave and electric furnaces
CN105330183B (en) A kind of preparation method of aluminous cement
CN107954718A (en) A kind of preparation method of boron carbide smelting device and boron carbide
CN104016316B (en) A kind of continuous preparation method of aluminum nitride powder and equipment thereof
CN102092699A (en) Method for preparing lithium iron phosphate by sintering lithium iron phosphate precursor and microwave sintering equipment
CN103693944A (en) Aluminum-silicon lightweight aggregate based on low-voltage electric porcelain waste material and preparation method thereof
CN102408227B (en) Manganese zinc material with high magnetic permeability and sintering method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150520

Termination date: 20151219

EXPY Termination of patent right or utility model