CN102425934B - Microwave heating high-temperature vertical kiln - Google Patents
Microwave heating high-temperature vertical kiln Download PDFInfo
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- CN102425934B CN102425934B CN 201110429098 CN201110429098A CN102425934B CN 102425934 B CN102425934 B CN 102425934B CN 201110429098 CN201110429098 CN 201110429098 CN 201110429098 A CN201110429098 A CN 201110429098A CN 102425934 B CN102425934 B CN 102425934B
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Abstract
The invention discloses a microwave heating high-temperature vertical kiln which is characterized in that a feeding device (2), an exhaust emission device (1), a preheating area furnace body (4), a preheating area microwave suppressor (5), a microwave heating warming-up area furnace body (6), a microwave heating thermal insulation area furnace body (9), a slow cooling area furnace body (10), a quenching area furnace body (11), a quenching area microwave suppressor (12), a kiln protective atmosphere system (13) and a discharging device (14) are arranged on a vertical passageway (21) arranged on a machine frame (3), wherein a temperature measuring system (8) is arranged on the microwave heating warming-up area furnace body (6), the microwave heating thermal insulation area furnace body (9), the slow cooling area furnace body (10) and the quenching furnace body (11); the kiln protective atmosphere system (13) is connected with the microwave heating warming-up area furnace body (6), the microwave heating thermal insulation area furnace body (9), the slow cooling area furnace body (10), the quenching furnace body (11) and the discharging device (14); and microwave suppressing devices are respectively arranged at abutting joint positions of the parts. The microwave heating high-temperature vertical kiln has the advantages of uniform integral heating, fast heating speed and high production efficiency.
Description
Technical field
The present invention relates to a kind of kiln, particularly relate to a kind of microwave heating high-temperature vertical kiln.
Background technology
Microwave energy is described as " second flame of the mankind ", and the microwave energy application technology is defined as " 21st century a new generation's technology ", " the advanced technology of preparing of new material ", " Future Outer Space heating technique " at World Developed Countries.Different from conventional kiln based on heating using microwave mechanism, it is by the polarized particle motion and is forced to shake material in-fighting and the living heat of phonon direct-coupling that causes, material body is directly as heater, heating using microwave kiln firing rate is fast, production efficiency is high, product is heated evenly, superior product quality, and capacity usage ratio is high, more conventional electrical kiln, gas-combustion kiln power savings advantages are obvious, so the vertical alternative traditional shaft kiln of the microwave high-temperature certainty that is era development.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of whole homogeneous heating, firing rate is fast, production efficiency is high microwave heating high-temperature vertical kiln.
in order to solve the problems of the technologies described above, microwave heating high-temperature vertical kiln provided by the invention, frame is provided with vertical passage, described vertical passage is provided with heating using microwave heating zone body of heater, dock with the lower end of preheating zone body of heater on being located at described vertical passage the upper end of described heating using microwave heating zone body of heater, described preheating zone body of heater is provided with the preheating zone microwave suppressor having, dock with the upper end of microwave heating thermal-insulation district body of heater on being located at described vertical passage the lower end of described heating using microwave heating zone body of heater, the upper end of described preheating zone body of heater be located at described vertical passage on feed arrangement and an end of toxic emission device dock, dock with the upper end of slow cooling district body of heater on being located at described vertical passage the lower end of described microwave heating thermal-insulation district body of heater, dock with the upper end of quench zone body of heater on being located at described vertical passage the lower end of described slow cooling district body of heater, the quench zone body of heater is provided with the quench zone microwave suppressor having, the lower end of described quench zone body of heater connects with drawing mechanism, described heating using microwave heating zone body of heater and microwave heating thermal-insulation district body of heater, slow cooling district body of heater, the quench zone body of heater is provided with temp measuring system, kiln protective atmosphere system and described heating using microwave heating zone body of heater, microwave heating thermal-insulation district body of heater, slow cooling district body of heater, the quench zone body of heater is connected with drawing mechanism, each parts joint is provided with the inhibition microwave device.
Described inhibition microwave device is that each connecting flange faces in described feed arrangement, toxic emission device, preheating zone body of heater, heating using microwave heating zone body of heater, preheating zone microwave suppressor having, microwave heating thermal-insulation district body of heater, temp measuring system, slow cooling district body of heater, quench zone body of heater, drawing mechanism and kiln protective atmosphere system is equipped with the conductive seal pad.
The material of described feed arrangement, toxic emission device, preheating zone body of heater, preheating zone microwave suppressor having, heating using microwave heating zone body of heater, microwave heating thermal-insulation district body of heater, temp measuring system, slow cooling district body of heater, quench zone body of heater, quench zone microwave suppressor having and drawing mechanism is stainless steel material; Frame is carbon steel shaped steel.
Described preheating zone body of heater comprises ceramic fire resistant brick, resistance wire, high temperature resistant stainless steel boiler tube, stainless steel carrying roller, warming plate, described resistance wire is set in the outer side bayonet slot of described ceramic fire resistant brick, and described ceramic fire resistant brick is close to the outside of described high temperature resistant stainless steel boiler tube.
The microwave source system of described heating using microwave heating zone body of heater and described microwave heating thermal-insulation district body of heater be arranged on described heating using microwave heating zone body of heater and microwave heating thermal-insulation district body of heater around, the microwave feed-in mode of described microwave source system adopts the straight wave guide form.
The microwave source system of described heating using microwave heating zone body of heater and described microwave heating thermal-insulation district body of heater is made of microwave head, annular device, water load and microwave power supply.
Add high temperature resistant microwave suppressing plate between described microwave heating thermal-insulation district's body of heater and described slow cooling district body of heater.
The back of the described temp measuring system on described heating using microwave heating zone body of heater and microwave heating thermal-insulation district body of heater is located on the material moving direction that it controls microwave source system.
The control section of the control system of the microwave source system of described heating using microwave heating zone body of heater and described microwave heating thermal-insulation district body of heater adopts insulating power supply.
The microwave power supply leakage transformer of the control system of the microwave source system of described heating using microwave heating zone body of heater and described microwave heating thermal-insulation district body of heater adopts the triangular form connection.
Adopt microwave, the electric Hybrid Heating high-temperature vertical kiln of technique scheme, material is in feed arrangement is fed to vertical passage in the body of heater of preheating zone, material enters into the vertical passage of heating using microwave heating zone body of heater under Action of Gravity Field, do not need propulsion system and the kiln furnitures such as push pedal, saggar, reduced the loss of energy, so energy-conservation.Based on the convection current principle in hot transfer principle, warmed-up gas produces a lift that makes progress in described vertical passage, hot gas material to described preheating zone in uphill process carries out preheating, simultaneously, hot gas carries out cold air cooling from the discharging opening suction to the material of described quench zone again in uphill process, thereby reach recycling heat energy fully, reach energy-conservation purpose.By the microwave source system, material is carried out heat temperature raising at heating using microwave heating zone body of heater, then material enters microwave heating thermal-insulation district body of heater under Action of Gravity Field, be incubated by the microwave source system heating at microwave heating thermal-insulation district body of heater, then it is cooling with stove that material enters slow cooling district body of heater under Action of Gravity Field, enter again the quench zone body of heater and carry out chilling under Action of Gravity Field, the quench zone body of heater be generally adopt water-cooled or air-cooled force cooling, during then material enters drawing mechanism under Action of Gravity Field by the worm screw rotating discharge.Whole process is except drawing mechanism uses the power discharging, other all charging under Action of Gravity Field of each stage material, material layering is queued up and to be advanced successively in vertical passage, and preheating and hot gas preheating, heating using microwave intensification, microwave heating thermal-insulation, slow cooling and chilling successively are until the drawing mechanism discharging.Temp measuring system has guaranteed the accuracy of thermometric in the microwave source system that material moving direction position lag is controlled; The control section of control system adopts insulating power supply, prevents that the impulse wave that produces due to leakage transformer is to the injury of control section; Control system microwave power supply leakage transformer adopts the triangular form connection, can improve the stability of equipment and avoid simultaneously neutral line current to the impact of electrical network.Each connecting flange faces is equipped with the conductive seal pad, can effectively prevent microwave leakage.The present invention adopts preheating, and heating using microwave heats up and insulation, and firing rate is fast, production efficiency is high, more conventional shaft kiln power savings advantages is obvious.
In sum, the present invention utilizes heat circulation because it is the whole homogeneous heating of microwave in addition, takes full advantage of the advantage of heating using microwave, so firing rate is fast, production efficiency is high, and superior product quality, non-environmental-pollution, more conventional saving energy in kiln are with the obvious advantage.Therefore microwave, the vertical alternative traditional shaft kiln of the electric Hybrid Heating high temperature certainty that is era development.
Description of drawings
Fig. 1 is microwave, electric Hybrid Heating high-temperature vertical kiln structural representation.
Fig. 2 is heating zone body of heater schematic cross-section.
The specific embodiment
The present invention is described in more detail below in conjunction with accompanying drawing.
referring to Fig. 1 and Fig. 2, frame 3 is provided with vertical passage 21, vertical passage 21 is provided with heating using microwave heating zone body of heater 6, dock with the lower end of preheating zone body of heater 4 on being located at vertical passage 21 upper end of heating using microwave heating zone body of heater 6, preheating zone body of heater 4 is provided with preheating zone microwave suppressor having 5, dock the upper end of the microwave heating thermal-insulation district body of heater 9 on the lower end of heating using microwave heating zone body of heater 6 and vertical passage 21, dock feed arrangement 2 on the upper end of preheating zone body of heater 4 and vertical passage 21 and the lower end of toxic emission device 1, the upper end of feed arrangement 2 is to being connected to material-transporting system, useless blower fan is taken out in the upper end docking of toxic emission device 1, dock the upper end of the slow cooling district body of heater 10 on the lower end of microwave heating thermal-insulation district body of heater 9 and vertical passage 21, dock the upper end of the quench zone body of heater 11 on the lower end of slow cooling district body of heater 10 and vertical passage 21, quench zone body of heater 11 is provided with quench zone microwave suppressor having 12, dock with drawing mechanism 14 entrances on vertical passage 21 lower end of quench zone body of heater 11, the outlet of drawing mechanism 14 is to being connected to material-transporting system, heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9, slow cooling district body of heater 10, quench zone body of heater 11 is provided with temp measuring system 8, kiln protective atmosphere system 13 and heating using microwave heating zone body of heater 6, microwave heating thermal-insulation district body of heater 9, slow cooling district body of heater 10, quench zone body of heater 11, quench zone microwave suppressor having 12 is connected connection with drawing mechanism, each parts joint is provided with the inhibition microwave device, suppressing microwave device is at feed arrangement 2, toxic emission device 1, preheating zone body of heater 4, preheating zone microwave suppressor having 5, heating using microwave heating zone body of heater 6, microwave heating thermal-insulation district body of heater 9, temp measuring system 8, slow cooling district body of heater 10, quench zone body of heater 11, quench zone microwave suppressor having 12, each connecting flange faces of drawing mechanism 14 and kiln protective atmosphere system 13 is equipped with the conductive seal pad, the material of feed arrangement 2, toxic emission device 1, preheating zone body of heater 4, preheating zone microwave suppressor having 5, heating using microwave heating zone body of heater 6, microwave heating thermal-insulation district body of heater 9, temp measuring system 8, slow cooling district body of heater 10, quench zone body of heater 11, quench zone microwave suppressor having 12 and drawing mechanism 14 is stainless steel material, and the material of frame 3 is carbon steel.Furnace tube material is corundum-mullite or magnesia refractories, filled high-temperature ceramic fibre refractory material or foaming nano ceramics between boiler tube and body of heater; The microwave source system 7 of heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9 be arranged on heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9 around, around heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9, microwave feed-in mode adopts the straight wave guide form; The microwave source system 7 of heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9 is made of water load 15, microwave head 16, annular device 17 and microwave power supply 20; Add high temperature resistant microwave suppressing plate between microwave heating thermal-insulation district body of heater 9 and slow cooling district body of heater 10; The back of the temp measuring system 8 on heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9 is located on the material direction of propulsion that it controls microwave source system 7; The control section of the control system of the microwave source system 7 of heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9 adopts insulating power supply; The microwave power supply leakage transformer of the control system of the microwave source system 7 of heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9 adopts the triangular form connection.
Referring to Fig. 1 and Fig. 2, it is that material relies on the deadweight slicing stoping that material advances, need not any additionaling power, so energy-conservation; The microwave source system 7 of heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9 be arranged on heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9 around, around heating using microwave heating zone body of heater 6 and microwave heating thermal-insulation district body of heater 9, microwave feed-in mode adopts the straight wave guide form; Explosion-proof valve and discharge outlet are equipped with in heating using microwave heating zone body of heater 6 and body of heater 9 tops, microwave heating thermal-insulation district; Add high temperature resistant microwave suppressing plate between microwave heating thermal-insulation district body of heater 9 and slow cooling district body of heater 10, preheating zone microwave suppressor having 5 and quench zone microwave suppressor having 12 are for suppressing the microwave suppressor having of chip architecture, the microwave of microwave suppressor having suppresses spacing L=λ/4+n λ/2mm between sheet, wherein: n=0,1,2,3 ... λ is the wavelength that needs the microwave of inhibition, and length is greater than 1.5 meters, and the microwave from leakage amount is less than 1mW/cm
2The microwave source system 7 that temp measuring system 8 is controlled at material direction of propulsion position lag, the included thermocouple ground connection of temp measuring system 8 is good; Heating using microwave heating zone body of heater 6, microwave heating thermal-insulation district body of heater 9, slow cooling district body of heater 10 is equipped with vertical boiler tube 19, insulation material 18.Referring to Fig. 1, the distribution that is orthogonal of microwave source system 7 installation sites around heating using microwave heating zone body of heater 6, microwave heating thermal-insulation district body of heater 9.Heating using microwave heating zone body of heater 6, all refractory materials employing high alumina corundum-mullite material or the magnesia refractories of microwave heating thermal-insulation district's body of heater 9 gentle cold-zone bodies of heater 10, all insulation materials adopt ceramic beaverboard, ceramic fibre is continuous or the foaming nano ceramics; All high alumina corundum-mullite materials, ceramic beaverboard, ceramic fibre are continuous, the foaming nano ceramics contains iron oxide, zirconia, sodium oxide molybdena, potassium oxide total amount are no more than 0.05%.All high alumina corundum-mullite materials, ceramic beaverboard, ceramic fibre silk floss, foaming nano ceramics do not contain organic gel.
referring to Fig. 1 and Fig. 2, material is transported to feed arrangement 2 through material-transporting system, be fed in preheating zone body of heater 4 furnace chambers by feed arrangement 2 again and carry out preheating, enter heating using microwave heating zone body of heater 6 through preheating zone microwave suppressor having 5 again under action of gravitation, material carries out heat temperature raising by 7 pairs of materials of microwave source system in heating using microwave heating zone body of heater 6, then enter microwave heating thermal-insulation district body of heater 9 under Action of Gravity Field, at microwave heating thermal-insulation district body of heater 9 by microwave source system 7 heat tracings, then enter slow cooling district body of heater 10 cooling with stove under Action of Gravity Field, enter again quench zone body of heater 11 and carry out chilling under Action of Gravity Field, quench zone body of heater 11 be generally adopt water-cooled or air-cooled force cooling, then enter drawing mechanism 14 by the worm-drive discharging through quench zone microwave suppressor having 12 under Action of Gravity Field, transport material to the products storage district by induction system again.Whole process is utilized additionaling power except drawing mechanism and induction system, all the other all rely on the gravity charging, queuing up at the interior material layering of vertical passage 21 advances successively, and preheating successively, heating using microwave intensification, microwave heating thermal-insulation, slow cooling and chilling are until the drawing mechanism discharging.13 pairs of heating using microwave heating zone bodies of heater 6 of kiln protective atmosphere system, microwave heating thermal-insulation district body of heater 9, slow cooling district body of heater 10, quench zone body of heater 11, quench zone microwave suppressor having 12 and drawing mechanism 14 provide protective gas and week reduction gas such as nitrogen protection.
Firing rate of the present invention is fast, production efficiency is high, more conventional shaft kiln power savings advantages is obvious.
Above invention is only better embodiment of the present invention; protection scope of the present invention is not limited with above-mentioned embodiment; as long as the equivalence that those skilled in the art do according to disclosed content is modified or changed, all include in the protection domain of putting down in writing in claims.
Claims (10)
1. microwave heating high-temperature vertical kiln, it is characterized in that: frame (3) is provided with vertical passage (21), described vertical passage (21) is provided with heating using microwave heating zone body of heater (6), dock with the lower end of preheating zone body of heater (4) on being located at described vertical passage (21) upper end of described heating using microwave heating zone body of heater (6), described preheating zone body of heater (4) is provided with preheating zone microwave suppressor having (5), dock with the upper end of microwave heating thermal-insulation district's body of heater (9) on being located at described vertical passage (21) lower end of described heating using microwave heating zone body of heater (6), dock with feed arrangement (2) and toxic emission device (1) on being located at described vertical passage (21) upper end of described preheating zone body of heater (4), dock with the upper end of slow cooling district's body of heater (10) on being located at described vertical passage (21) lower end of described microwave heating thermal-insulation district body of heater (9), dock with the upper end of quench zone body of heater (11) on being located at described vertical passage (21) lower end of described slow cooling district body of heater (10), described quench zone body of heater (11) is provided with quench zone microwave suppressor having (12), dock with drawing mechanism (14) entrance on being located at described vertical passage (21) lower end of described quench zone body of heater (11), described heating using microwave heating zone body of heater (6) and microwave heating thermal-insulation district's body of heater (9), slow cooling district body of heater (10), quench zone body of heater (11) is provided with temp measuring system (8), kiln protective atmosphere system (13) and described heating using microwave heating zone body of heater (6), microwave heating thermal-insulation district body of heater (9), slow cooling district body of heater (10), quench zone body of heater (11), quench zone microwave suppressor having (12) is connected 14 with drawing mechanism) connect, each parts joint is provided with the inhibition microwave device.
2. microwave heating high-temperature vertical kiln according to claim 1 is characterized in that: described inhibition microwave device is that each connecting flange faces in described feed arrangement (2), toxic emission device (1), preheating zone body of heater (4), preheating zone microwave suppressor having (5), heating using microwave heating zone body of heater (6), microwave heating thermal-insulation district's body of heater (9), temp measuring system (8), slow cooling district's body of heater (10), quench zone body of heater (11), drawing mechanism (14) and kiln protective atmosphere system (13) is equipped with the conductive seal pad.
3. microwave heating high-temperature vertical kiln according to claim 1 and 2, it is characterized in that: the material of described feed arrangement (2), toxic emission device (1), preheating zone body of heater (4), preheating zone microwave suppressor having (5), heating using microwave heating zone body of heater (6), microwave heating thermal-insulation district's body of heater (9), temp measuring system (8), slow cooling district's body of heater (10), quench zone body of heater (11), quench zone microwave suppressor having (12) and drawing mechanism (14) is stainless steel material; The material of described frame (3) is carbon steel.
4. microwave heating high-temperature vertical kiln according to claim 1 and 2, it is characterized in that: described heating using microwave heating zone body of heater (6), microwave heating thermal-insulation district's body of heater (9), all refractory materials of slow cooling district's body of heater (10) adopt high alumina corundum-mullite material or magnesia refractories, and all insulation materials adopt ceramic beaverboard, ceramic fibre is continuous or the foaming nano ceramics.
5. microwave heating high-temperature vertical kiln according to claim 1 and 2, it is characterized in that: the microwave source system (7) of described heating using microwave heating zone body of heater (6) and described microwave heating thermal-insulation district's body of heater (9) be arranged on described heating using microwave heating zone body of heater (6) and microwave heating thermal-insulation district's body of heater (9) around, the microwave feed-in mode of described microwave source system (7) adopts the straight wave guide form.
6. microwave heating high-temperature vertical kiln according to claim 1 and 2 is characterized in that: the microwave source system (7) of described heating using microwave heating zone body of heater (6) and described microwave heating thermal-insulation district's body of heater (9) is made of water load (15), microwave head (16), annular device (17) and microwave power supply (20).
7. microwave heating high-temperature vertical kiln according to claim 1 and 2, is characterized in that: add high temperature resistant microwave suppressing plate between described microwave heating thermal-insulation district's body of heater (9) and described slow cooling district's body of heater (10).
8. microwave heating high-temperature vertical kiln according to claim 1 and 2, it is characterized in that: the described temp measuring system (8) on described heating using microwave heating zone body of heater (6) and microwave heating thermal-insulation district's body of heater (9) is located at the back of its microwave source system (7) that controls on the material direction of advance.
9. microwave heating high-temperature vertical kiln according to claim 1 and 2, is characterized in that: the control section employing insulating power supply of the control system of the microwave source system (7) of described heating using microwave heating zone body of heater (6) and described microwave heating thermal-insulation district's body of heater (9).
10. microwave heating high-temperature vertical kiln according to claim 1 and 2, is characterized in that: the microwave power supply leakage transformer employing triangular form connection of the control system of the microwave source system (7) of described heating using microwave heating zone body of heater (6) and described microwave heating thermal-insulation district's body of heater (9).
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| CN103113903B (en) * | 2013-02-01 | 2014-02-19 | 湖南省中晟热能科技有限公司 | Microwave thermal cracking device for organic substances |
| CN103468931B (en) * | 2013-08-20 | 2016-05-11 | 中信大锰矿业有限责任公司大新锰矿分公司 | A kind of microwave calcining equipment |
| CN104968065B (en) * | 2015-06-24 | 2016-09-14 | 南京三乐微波技术发展有限公司 | A kind of HIGH-POWERED MICROWAVES high-temperature heating equipment |
| CN105605921B (en) * | 2016-03-25 | 2018-03-16 | 湖南省中晟热能科技有限公司 | A kind of MICA microwave calcination is horizontal to fry plate kiln |
| CN108131929A (en) * | 2018-01-17 | 2018-06-08 | 鞍山市奥鞍耐火材料有限责任公司 | Refractory material soaks salt drying means and equipment |
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| JP2866719B2 (en) * | 1990-07-20 | 1999-03-08 | 株式会社アイジー技術研究所 | Continuous ceramic plate manufacturing equipment |
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| CN2597925Y (en) * | 2003-01-15 | 2004-01-07 | 长沙隆泰科技有限公司 | Solid material fritting furnace |
| CN101548024A (en) * | 2006-10-03 | 2009-09-30 | J·Y·黄 | Microwave heating method and apparatus for iron oxide reduction |
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