CN203249490U - Electromagnetic induction heating rotary kiln - Google Patents
Electromagnetic induction heating rotary kiln Download PDFInfo
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- CN203249490U CN203249490U CN2013201214691U CN201320121469U CN203249490U CN 203249490 U CN203249490 U CN 203249490U CN 2013201214691 U CN2013201214691 U CN 2013201214691U CN 201320121469 U CN201320121469 U CN 201320121469U CN 203249490 U CN203249490 U CN 203249490U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/924—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation using renewable energies
- Y02A40/928—Cooking stoves using biomass
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Abstract
The utility model relates to an electromagnetic induction heating rotary kiln. The heating speed and heating efficiency of the rotary kiln are improved, and the rotary kiln is efficiency and saves energy. Different from a traditional heating method, an electromagnetic induction heating method enables the rotary kiln to heat by itself, and is free of open flame, high in heating speed, short in pre-heating time, and capable of accurately controlling the working temperature, the working temperature is 80-1100 DEG C, the working frequency is 10-40 KH z, and the heating efficiency is high and is larger than or equal to 85-99%. Equipment is light, small in size, low in production and manufacturing cost, low in use cost, long in effective working cycle, and high in unit time processing capacity and production efficiency. The electromagnetic induction heating rotary kiln has an automatic kiln-cleaning function, and is suitable for smelting of scrap lead, smelting of scrap zinc, smelting of scrap aluminum, drying and roasting of mine products, drying and roasting of building materials, drying and roasting of chemical products, dehydration and drying of traditional Chinese medicine, dehydration and drying of agricultural products, and dehydration, drying and sterilization of agricultural fertilizer (such as chicken manure, pig manure and cow manure).
Description
Affiliated technical field
The utility model relates to a kind of electromagnetic induction heating rotary kiln, especially can improve firing rate and the thermal efficiency of rotary kiln, and is energy-efficient.Different from traditional heating mode, electromagnetic induction heating makes the rotary kiln self-heating, the flames of anger, and firing rate is fast, and preheating time is short.Can accurately control the operating temperature of rotary kiln, 80 ℃～1100 ℃ of operating temperatures, operating frequency 10KHz～40KHz, the thermal efficiency is high, the thermal efficiency 〉=85%～99%.Equipment is light, and volume is little, the device fabrication low cost of manufacture, and the equipment use cost is low, and the equipment active duty cycle time is long, and FU time treating capacity and production efficiency are high.Have automatically clear kiln function, clear kiln speed is fast, the time is short, efficient is high.Can not discharge the waste gas such as flue dust and carbon monoxide in the production work process, the environment for use environmentally-friendly sanitary can not cause environmental pollution.Be applicable to the scrap lead melting, useless zinc melting, Way of Remelting Scrap Aluminium, the oven dry of mineral products and roasting, the oven dry of building materials and roasting, chemical products oven dry and roasting, the dehydration of Chinese medicine and oven dry, the dehydration of agricultural product and oven dry, dehydration and oven dry and the sterilization of farming fertile (chicken manure, pig manure, cow dung etc.).
Background technology
Rotary kiln refers to rotary calcining kiln (being commonly called as rotary kiln).Rotary kiln can be divided into cement kiln, chemical metallurgy kiln and limekiln by the material handling difference.Cement kiln is mainly used in calcination of cement clinker, minute dry production cement kiln and wet production cement kiln two large classes.The chemical metallurgy kiln then is mainly used in the poor iron ore magnetic roasting of metallurgy industry steel plant; Chromium, josephinite oxidizing roasting; Refractory factory roasting high-aluminium vanadine ore deposit and aluminium manufacturer's roasting grog, aluminium hydroxide; The class mineral such as chemical plant roasting chrome ore and chromite ore fine.Active lime and light dolomite that limekiln (being active lime kiln) is used for roasting steel plant, ferroalloy works.Rotary kiln uses revolving drum equipment that solid material is carried out machinery, physical or chemical treatment in many production industries such as building materials, metallurgy, chemical industry, environmental protection widely, and this kind equipment is called as rotary kiln.The application of rotary kiln originates from manufacture of cement, and 1885 British blue Pehanorms (ERansome) have been invented rotary kiln, after English, U.S.A obtain patent it are put into production, obtain very soon considerable economic benefit.The invention of rotary kiln so that cement industry develops rapidly, has also promoted the research that people use rotary kiln simultaneously, and very fast rotary kiln is widely applied to many industrial circles, and more and more important in these are produced, and becomes the nucleus equipment that corresponding enterprise produces.Its technical performance and working order are determining quality, output and the cost of enterprise product to a great extent.In the application of rotary kiln, the quantity in the cement industry is maximum.Be divided into reducing rotary kiln and latus rectum rotary kiln according to external form, be divided into again the combustion gas rotary kiln according to energy supply effect difference, coal-fired rotary kiln, fuel combination rotary kiln.
At present, so the kiln body inner lining refractory block rotary kiln of known rotary kiln is directly larger, general diameter is greater than 1.5 meters, more than ten meter to tens meters of length, need to adopt a large amount of steel to make the kiln body, and need to use a large amount of refractory materials in the kiln body, refractory material also has certain service life, need maintenance and change refractory material after using a period of time, so the equipment of traditional rotary kiln is heavy, volume is large, and the device fabrication manufacturing cost is high, the equipment use cost is high, and the equipment active duty cycle time is short.
Known rotary kiln is divided into again the combustion gas rotary kiln according to energy supply effect difference, coal-fired rotary kiln, and the fuel combination rotary kiln namely adopts combustion gas, fuel oil and fire coal to provide thermal source for rotary kiln in the kiln body.Because use combustion gas, fuel oil and coal-fired indirect, the kiln surface does not have heat-insulating material, produce heat radiation, cause heat loss.Cause the thermal efficiency low, the thermal efficiency≤70%.
Refractory material in the known rotary kiln body and the steel of kiln body will absorb a large amount of heat energy, and the kiln surface does not have heat-insulating material, produce heat radiation, cause heat loss.Need to reach preheating in several hours and just can reach operating temperature, operating temperature 〉=500 ℃, waste mass energy when needing low temperature to use.So firing rate is slow, preheating time is long, can not accurately control the operating temperature of rotary kiln.
Known rotary kiln device is heavy, and volume is large, and the rotary kiln rotating speed is lower, and rotating speed is fixed, and working speed can not be adjusted, so production efficiency of equipment and unit interval treating capacity are low.
Known rotary kiln device is heavy, and volume is large, needs manually clear up the leftover materials in the kiln body when changing rotary kiln processing raw material, and clear kiln speed is slow, the time is long, efficient is low.
Known rotary kiln is owing to using combustion gas, fuel oil and coal-fired indirect, so the waste gas such as discharging flue dust and carbon monoxide in the production work process, environment for use is poor, causes environmental pollution.
Summary of the invention
Heavy in order to overcome existing rotary kiln device, volume is large, and the device fabrication manufacturing cost is high, and the equipment use cost is high, and the equipment active duty cycle time is short; Firing rate is slow, and preheating time is long, can not accurately control the operating temperature of rotary kiln, operating temperature 〉=500 ℃, and the thermal efficiency is low, the thermal efficiency≤70%; Production efficiency of equipment and unit interval treating capacity are low; Artificial clear kiln speed is slow, the time is long, efficient is low; The waste gas such as discharging flue dust and carbon monoxide in the production work process, environment for use is poor, causes the defective of environmental pollution.This utility model provides a kind of electromagnetic induction heating rotary kiln, and the electromagnetic induction heating rotary kiln device is light, and volume is little, the device fabrication low cost of manufacture, and the equipment use cost is low, and the equipment active duty cycle time is long; The flames of anger, firing rate is fast, and preheating time is short, can accurately control the operating temperature of rotary kiln, 80 ℃～1100 ℃ of operating temperatures; The thermal efficiency is high, the thermal efficiency 〉=85%～99%; FU time treating capacity and production efficiency are high, have automatically clear kiln function, and clear kiln speed is fast, the time is short, efficient is high; Can not discharge the waste gas such as flue dust and carbon monoxide in the production work process, the environment for use environmentally-friendly sanitary can not cause environmental pollution.
The technical scheme that its technical problem of solution that relates to the utility model adopts is: adopt electromagnetic induction heating technology as the thermal source of rotary kiln, electromagnetic induction coil operating frequency 10KHz～40KHz, the kiln body by induction coil electric energy autonomous induction directly generate heat and with thermal energy transfer to material in the kiln, the kiln surface is enclosed with heat-insulating material, reduce heat radiation and thermal losses, improve the thermal efficiency, reduced energy consumption.Need not to install refractory material in the kiln body, so alleviated weight of equipment, reduced the device fabrication cost, owing to can not produce expense and the time of changing refractory material, so reduced the equipment use cost, prolonged the equipment active duty cycle time.The kiln body adopts magnetic conduction conductive high temperature resistance material to consist of, the composite that is used for the kiln body employing magnetic conduction conductive high temperature resistance material liner high temperature resistant stainless steel of the dehydration of the dehydration of chemical products oven dry and roasting and Chinese medicine and oven dry and agricultural product and oven dry, thereby it is light to reach the electromagnetic induction heating rotary kiln device, volume is little, the device fabrication low cost of manufacture, the equipment use cost is low, the purpose that the equipment active duty cycle time is long.
Adopt electromagnetic induction heating technology as the thermal source of rotary kiln, the kiln body directly generate heat by induction coil electric energy autonomous induction and with thermal energy transfer to material in the kiln, the flames of anger is compared with traditional heating mode such as resistance heated and gas heatings and have been saved a large amount of energy.The kiln surface is enclosed with heat-insulating material, reduces heat radiation and thermal losses, has improved the thermal efficiency, has reduced energy consumption.Adjusting induction heating power by the phase-shift control mode outputs to induction coil power and adjusts the rotary kiln operating temperature.Thereby it is fast to reach the rotary kiln firing rate, and preheating time is short, can accurately control the operating temperature of rotary kiln, 80 ℃～1100 ℃ of operating temperatures, and the thermal efficiency is high, the purpose of the thermal efficiency 〉=85%～99%.
Adopt two large-scale high temperature resistant rolling bearings to be installed on two bearing blocks, bearing block is installed on the rotary kiln frame, the rotary kiln body is installed in two large-scale high temperature resistant rolling bearings, large fluted disc is installed in the preheating zone of kiln hood, the frequency control motor of installing on the frame drives small tooth plate after slowing down by reductor, and small tooth plate rotates rotary kiln by the chain-driving large fluted disc.Thereby the rotating speed that changes frequency control motor changes the rotating speed of rotary kiln, 10 rev/mins～60 rev/mins of rotary kiln rotating speeds.Frame is divided into top and the bottom, upper lower bearing bracket is linked together by three punching axles and hydraulic jack, the height of adjusting hydraulic jack can change the angle of frame horizontal line and rotary kiln center line of kiln body, namely change the inclination angle of rotary kiln, thereby change the interior amount by rotary kiln of store list bit time, improved production efficiency.The adjusting range at rotary kiln inclination angle is 0 °～45 °, when rotating rotary kiln and adjust rotary kiln inclination angle 〉=30 °, and automatic clear kiln.Thereby it is high to reach the unit interval treating capacity, and production efficiency is high, has automatically clear kiln function, the clear purpose that kiln speed is fast, the time is short, efficient is high.
Adopt electromagnetic induction heating technology as the thermal source of rotary kiln, the flames of anger can not discharged the waste gas such as flue dust and carbon monoxide in the production work process, and the environment for use environmentally-friendly sanitary can not cause environmental pollution.Can not discharge the waste gas such as flue dust and carbon monoxide thereby reach in the production work process, the environment for use environmentally-friendly sanitary can not cause the purpose of environmental pollution.
The beneficial effect that the utility model relates to is: equipment is light, and volume is little, the device fabrication low cost of manufacture, and the equipment use cost is low, and the equipment active duty cycle time is long; The flames of anger, firing rate is fast, and preheating time is short, can accurately control the operating temperature of rotary kiln, 80 ℃～1100 ℃ of operating temperatures; The thermal efficiency is high, the thermal efficiency 〉=85%～99%; FU time treating capacity and production efficiency are high, have automatically clear kiln function, and clear kiln speed is fast, the time is short, efficient is high; Can not discharge the waste gas such as flue dust and carbon monoxide in the production work process, the environment for use environmentally-friendly sanitary can not cause environmental pollution.
Description of drawings
Below in conjunction with drawings and Examples the utility model is related to and to further specify.
Accompanying drawing is side surface configurations figure of the present invention.
1. charging apertures among the figure, 2. large fluted disc, 3. preheating zone, 4. high temperature resistant bearing, 5. coil rack, the 6. thermal treatment zone, 7. heat-insulating material, 8. induction coil, 9. cooling zone, 10. discharge gate, 11. driving chain, 12. small tooth plates, 13. reductors, 14. frequency control motor, 15. hydraulic jack, 16. bearing blocks, 17. frame, 18. punching axles, 19. electromagnetic induction heating power supplies.
The specific embodiment:
In the drawings, the kiln body is by charging aperture (1), large fluted disc (2), preheating zone (3), the thermal treatment zone (6), cooling zone (9), and discharge gate (10) consists of.The kiln body adopts magnetic conduction conductive high temperature resistance material to consist of, being used for the dehydration of chemical products oven dry and roasting and Chinese medicine and the dehydration of oven dry and agricultural product and the kiln body of oven dry adopts the composite of magnetic conduction conductive high temperature resistance material liner high temperature resistant stainless steel to consist of, the kiln surface is enclosed with heat-insulating material (7), is used for reducing the heat radiation raising thermal efficiency of kiln body.Large fluted disc (2) is installed on the preheating zone (3) between charging aperture (1) and the thermal treatment zone (6), in the kiln body preheating zone (3) feed screw is installed, be used for material from charging aperture (1) carry uniformly to the thermal treatment zone (6).Two high temperature resistant bearings (4) are installed in respectively between kiln body preheating zone (3) and the thermal treatment zone (6) and between the thermal treatment zone (6) and cooling zone (9), two high temperature resistant bearings (4) are installed in respectively on two bearing blocks (16).Two bearing blocks (16) are installed in respectively on the frame (17) with reductor (13) and frequency control motor (14).Driving small tooth plate (12) after the frequency control motor of installing on the frame (14) slows down by reductor (13) rotates, small tooth plate (12) drives large fluted disc (2) by driving chain (11) and rotates, thereby the rotary kiln body is rotated.Change frequency control motor (14) thus rotating speed change the rotating speed of rotary kiln, 10 rev/mins～60 rev/mins of rotary kiln rotating speeds.Frame (17) is divided into up and down two parts, upper lower bearing bracket is linked together by three punching axles (18) and hydraulic jack (15), the height of adjusting hydraulic jack (15) can change the angle of frame (17) horizontal line and rotary kiln center line of kiln body, namely change the inclination angle of rotary kiln, thereby change the interior amount by rotary kiln of store list bit time.The adjusting range at rotary kiln inclination angle is 0 °～45 °, when rotating rotary kiln and adjust rotary kiln inclination angle 〉=30 °, and automatic clear kiln.Coil rack (5) is installed on two bearing blocks (16) of outside, the thermal treatment zone (6), and coil rack (5) is the insulated non-magnetic material.Kiln surface between coil rack (5) and the thermal treatment zone (6) is enclosed with multilayer heat insulation insulation material (7), is used for reducing the heat radiation raising thermal efficiency of kiln body, reduces kiln height temperature to the impact of induction coil (8).Because sense
Answer the temperature of heater coil central point the highest, consistent for guaranteeing the temperature between the kiln body thermal treatment zone (6), adopt a plurality of induction coils (8) more than three or three to be installed on the coil rack (5).A plurality of induction coils (8) more than three or three are connected by wire with electromagnetic induction heating power supply (19), adjusting induction heating power (19) by the phase-shift control mode outputs to induction coil (8) power and adjusts the rotary kiln operating temperature, can accurately control the operating temperature of rotary kiln, 80 ℃～1100 ℃ of operating temperatures, operating frequency 10KHz～40KHz.
Claims (1)
1. electromagnetic induction heating rotary kiln is characterized in that:
(1) the kiln body is by charging aperture, large fluted disc, preheating zone, the thermal treatment zone, cooling zone, discharge gate consists of, the kiln body adopts magnetic conduction conductive high temperature resistance material to consist of, and is used for the dehydration of chemical products oven dry and roasting and Chinese medicine and the dehydration of oven dry and agricultural product and the kiln body of oven dry and adopts the composite of magnetic conduction conductive high temperature resistance material liner high temperature resistant stainless steel to consist of;
(2) the kiln surface is enclosed with heat-insulating material, is used for reducing the heat radiation raising thermal efficiency of kiln body;
(3) large fluted disc is installed on the preheating zone between charging aperture and the thermal treatment zone, and the kiln body is equipped with feed screw in the preheating zone, be used for material from charging aperture carry uniformly to the thermal treatment zone;
(4) two high temperature resistant bearings are installed in respectively between kiln body preheating zone and the thermal treatment zone and between the thermal treatment zone and the cooling zone, two high temperature resistant bearings are installed in respectively on two bearing blocks;
(5) two bearing blocks and reductor and frequency control motor are installed in respectively on the frame, driving small tooth plate after the frequency control motor of installing on the frame slows down by reductor rotates, small tooth plate drives large fluted disc by driving chain and rotates, thereby the rotary kiln body is rotated;
(6) thus the rotating speed that changes frequency control motor changes the rotating speed of rotary kiln, rotary kiln rotating speed: 10 rev/mins～60 rev/mins;
(7) frame is divided into up and down two parts, upper lower bearing bracket is linked together by three punching axles and hydraulic jack, the height of adjusting hydraulic jack can change the angle of frame horizontal line and rotary kiln center line of kiln body, namely change the inclination angle of rotary kiln, thereby change the interior amount by rotary kiln of store list bit time;
(8) adjusting range at rotary kiln inclination angle is: 0 °～45 °, and when rotating rotary kiln and adjust rotary kiln inclination angle 〉=30 °, automatic clear kiln;
(9) coil rack is installed on two bearing blocks of outside, the thermal treatment zone, coil rack is the insulated non-magnetic material, kiln surface between coil rack and the thermal treatment zone is enclosed with the multilayer heat insulation insulation material, be used for reducing the heat radiation raising thermal efficiency of kiln body, reduce kiln height temperature to the impact of induction coil;
(10) because the temperature of load coil central point is the highest, consistent for guaranteeing the temperature between the kiln body thermal treatment zone, adopt a plurality of induction coils more than three or three to be installed on the coil rack;
(11) three or a plurality of induction coils more than three are connected by wire with electromagnetic induction heating power supply, adjust induction heating power by the phase-shift control mode and output to induction coil power and adjust the rotary kiln operating temperature, can accurately control the operating temperature of rotary kiln;
(12) electromagnetic induction heating rotary kiln operating temperature: 80 ℃～1100 ℃, operating frequency: 10KHz～40KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201214691U CN203249490U (en) | 2013-03-18 | 2013-03-18 | Electromagnetic induction heating rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201214691U CN203249490U (en) | 2013-03-18 | 2013-03-18 | Electromagnetic induction heating rotary kiln |
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| CN203249490U true CN203249490U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013201214691U Expired - Fee Related CN203249490U (en) | 2013-03-18 | 2013-03-18 | Electromagnetic induction heating rotary kiln |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134307A (en) * | 2013-03-18 | 2013-06-05 | 古晓跃 | Electromagnetic induction heating rotary kiln |
| CN104880059A (en) * | 2015-06-03 | 2015-09-02 | 朱兴发 | Energy-saving and environment-friendly mercury metallurgy electromagnetic induction roasting rotary kiln with size of phi 2000*18 meters |
| CN105258497A (en) * | 2015-09-28 | 2016-01-20 | 安徽冠华黄金科技有限公司 | Electromagnetic heating reaction kettle rotary kiln with high stability |
| WO2017107532A1 (en) * | 2015-12-21 | 2017-06-29 | 格林美股份有限公司 | Internal heating ceramic liner rotary furnace |
| CN112028102A (en) * | 2020-07-31 | 2020-12-04 | 马鞍山钢铁股份有限公司 | Treatment method and system for efficiently converting calcium sulfite in calcium-based desulfurized fly ash into calcium sulfate |
-
2013
- 2013-03-18 CN CN2013201214691U patent/CN203249490U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134307A (en) * | 2013-03-18 | 2013-06-05 | 古晓跃 | Electromagnetic induction heating rotary kiln |
| CN104880059A (en) * | 2015-06-03 | 2015-09-02 | 朱兴发 | Energy-saving and environment-friendly mercury metallurgy electromagnetic induction roasting rotary kiln with size of phi 2000*18 meters |
| CN105258497A (en) * | 2015-09-28 | 2016-01-20 | 安徽冠华黄金科技有限公司 | Electromagnetic heating reaction kettle rotary kiln with high stability |
| CN105258497B (en) * | 2015-09-28 | 2017-04-12 | 安徽冠华黄金科技有限公司 | Electromagnetic heating reaction kettle rotary kiln with high stability |
| WO2017107532A1 (en) * | 2015-12-21 | 2017-06-29 | 格林美股份有限公司 | Internal heating ceramic liner rotary furnace |
| CN112028102A (en) * | 2020-07-31 | 2020-12-04 | 马鞍山钢铁股份有限公司 | Treatment method and system for efficiently converting calcium sulfite in calcium-based desulfurized fly ash into calcium sulfate |
| CN112028102B (en) * | 2020-07-31 | 2023-03-03 | 马鞍山钢铁股份有限公司 | Treatment method and system for efficiently converting calcium sulfite in calcium-based desulfurized fly ash into calcium sulfate |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20131023 Termination date: 20200318 |