CN202254814U - Microwave and heat source combined sintering furnace - Google Patents
Microwave and heat source combined sintering furnace Download PDFInfo
- Publication number
- CN202254814U CN202254814U CN2011203041166U CN201120304116U CN202254814U CN 202254814 U CN202254814 U CN 202254814U CN 2011203041166 U CN2011203041166 U CN 2011203041166U CN 201120304116 U CN201120304116 U CN 201120304116U CN 202254814 U CN202254814 U CN 202254814U
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- microwave
- kiln
- furnace
- cylindrical shell
- rotary kiln
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Abstract
The utility model discloses a microwave and heat source combined sintering furnace including a microwave standing furnace, and the discharge outlet of the microwave standing furnace is connected to the feeding inlet of a rotary kiln. The material is heated by the microwave standing furnace, and the heating temperature can be accurately controlled via microwave sources. Because the material in the rotary kiln is already reached to a certain temperate (lower than the calcining temperature 50-100 DEG C), under the condition that the output and the rotating speed in the kiln are not changed, the length of the rotary kiln is reduced, the inclined angle of the kiln can be properly increased, thus, the detention time of the material in the kiln can be greatly reduced; therefore, the fuel required during the calcination is greatly reduced, meanwhile, the looping phenomenon can be prevented during the calcination.
Description
Technical field
The utility model belongs to heat-exchange device, the sintering furnace that particularly a kind of microwave combines with thermal source.
Background technology
From 1885, rotary kiln was born over nearly 120 years, has experienced repeatedly great technological innovation; As the heat exchange equipment, he has comparison even temperature field, can satisfy the heat exchange requirement in each stage in the various material forming processes; The particularly requirement of mineral generation as chemical reactor, forms the different needs of different phase along with mineral; It both can satisfy different minerals by stages and had formed heat, and the requirement of temperature can be satisfied their requirements to the time again; Be to be used for the best the best equipment that is shaped of multi mineral at present, still not having other equipment can substitute.
Thus can, rotary kiln has multiple function and fine quality, therefore it is the calcining task in many mineral generative processes always in nearly half a century.But; Rotary kiln also exists two very big shortcoming and defect, and one is as heat-exchange device, mainly is " piling up heat " heat exchange between hot air-flow and the material in the kiln; Heat exchange efficiency is low, thereby influences the reduction with energy energy consumption of giving full play to of its due production efficiency; Another is that needed fuel is all supplied with from the kiln end in the material calcining process, the high temperature of fuel burning zone in kiln, the burning down of high oxygen condition, NO
xForm in a large number etc. harmful components, cause a large amount of pollutions etc.In addition, material is easy ring formation in calcination process, safeguards inconvenience, and expense is higher.
The microwave shaft (tower) furnace is to utilize microwave directly to penetrate object and material directly is coupled, and the electromagnetic field of the higher-order of oscillation makes the inner polar molecule phase mutual friction of material, microwave energy is converted into the heat energy of object.Simultaneously, simple to operate, easy to use, energy-efficient, safe and reliable.But for different materials, because dielectric constant is different, microwave exists optionally; Occur easily " thermal runaway ", material is under static relatively situation, and the temperature field is inhomogeneous, in addition; The penetration depth of microwave is limited, and more obvious for the absorbing material decay, output exists problem.
The utility model content
Characteristics such as the purpose of the utility model is the sintering furnace that provides a kind of microwave to combine with thermal source, and it is even to have temperature, and production efficiency is high, and maintenance cost is low, and is energy-conservation.
The solution of the utility model is: the sintering furnace that microwave combines with thermal source, comprise a microwave shaft (tower) furnace, and the discharging opening of said microwave shaft (tower) furnace is connected with the charging aperture of single-revolution kiln.
Further technical scheme is:
The discharging opening of said microwave shaft (tower) furnace is connected with the device for transporting objects of the charging aperture of said rotary kiln through a transition;
Said microwave shaft (tower) furnace comprises housing; Be provided with vertical boiler tube in the housing, the top of housing is provided with feed hopper and is connected with boiler tube with exhaust outlet, and the discharging opening of band valve is located at lower part of frame and is connected with boiler tube; The neighboring of housing is provided with some microwave sources, is filled with insulation material between housing and the boiler tube.
Said rotary kiln comprises transmission device, the burning heater that is located at movable cylindrical shell discharge end that movable cylindrical shell, driving activity cylindrical shell rotate, the kiln hood sealing device that is located at movable cylindrical shell feed end; Said kiln hood sealing device comprises the fixed cylinder that docks with movable cylindrical shell; The neighboring of the interface of fixed cylinder and movable cylindrical shell seals through the seal ring structure of the interior filled stone ink material that is connected with fixed cylinder or movable cylindrical shell, and the charging aperture of said rotary kiln is located on the fixed cylinder of said kiln hood sealing device.
Advantages such as the utility model is on the basis of existing technology, combines microwave shaft (tower) furnace and rotary kiln, and it is fast to make full use of heating using microwave speed, and efficient is high, and is energy-conservation, utilizes kiln temperature even simultaneously, and output is big.
The utility model heats material through the microwave shaft (tower) furnace, heats how many temperature and accurately controls through microwave source, and discharging speed and output are controlled through the height of shaft (tower) furnace and the valve on the discharging opening.Reached the certain temperature calcining heat of material (be lower than 50～100 ℃) owing to get into the material of rotary kiln; Under the prerequisite that rotating speed is constant in guaranteeing output and kiln; The length of rotary kiln reduces, and the angle of inclination of kiln can suitably increase, and the holdup time of material will significantly reduce in the kiln; Not only needed fuel reduces significantly in the calcination process, can avoid occurring simultaneously ring formation phenomenon in the calcination process.
Below in conjunction with accompanying drawing the utility model is described further.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is A-A cutaway view of Fig. 1.
Fig. 3 is B-B cutaway view of Fig. 1.
Fig. 4 is the kiln hood schematic diagram of sealing device of rotary kiln in the utility model.
The specific embodiment
See Fig. 1-Fig. 4, the sintering furnace that microwave combines with thermal source comprises a microwave shaft (tower) furnace, and the discharging opening 8 of microwave shaft (tower) furnace is connected with the charging aperture 11 of single-revolution kiln; The discharging opening 8 of microwave shaft (tower) furnace is connected with the device for transporting objects 9 of the charging aperture 11 of said rotary kiln through a transition; The microwave shaft (tower) furnace comprises the housing 6 of metal; Be provided with vertical corundum boiler tube 4 in the housing 6, the top of housing 6 is provided with feed hopper 1 and is connected with corundum boiler tube 4 with exhaust outlet 2, and the bottom that discharging opening 8 is located at housing 6 is connected with corundum boiler tube 4; Discharging opening 6 is provided with ball valve 5; The neighboring of housing 6 is provided with some microwave sources 3, is filled with insulation material 7 between housing 6 and the corundum boiler tube 4, and the charging aperture 11 usefulness outer covers 10 of the discharging opening 8 of microwave shaft (tower) furnace, device for transporting objects 9 and rotary kiln coat; Rotary kiln comprises transmission device 14, the burning heater 16 that is located at movable cylindrical shell 13 discharge ends 15 that movable cylindrical shell 13, driving activity cylindrical shell 13 rotate, the kiln hood sealing device 12 that is located at movable cylindrical shell 13 feed ends; Kiln hood sealing device 12 comprises the fixed cylinder 121 that docks with movable cylindrical shell 13; The one end sealing of fixed cylinder 121; The neighboring of the other end and movable cylindrical shell 13 interfaces seals through the seal ring structure 123 of the interior filled stone ink material 122 that is connected with fixed cylinder 13 (perhaps movable cylindrical shell), and the charging aperture 11 of said rotary kiln is located on the fixed cylinder 121 of said kiln hood sealing device 12; Fixed cylinder 121 is formed by furnace wall 131, furnace lining 133, insulation material 132 and boiler tube 134 with movable cylindrical shell 13, and movable cylindrical shell 13 is supported by gear wheel 17.
In the utility model, microwave source 3 adopts 1.5KW or 3KW microwave source; The charging aperture 11 of rotary kiln adopts bellows; Device for transporting objects 9 adopt track conveying devices or helix transporting device etc. commonly used can resistant to elevated temperatures mechanical transmission device; Transmission device 14 adopts gear drive, and burning heater 16 adopts plain nozzle, and thermal source is natural gas and coal gas.
The manganese dioxide of application 1: 300kg gets into the microwave shaft kiln from feed hopper 1, and heating-up temperature is respectively 100 ℃ from top to bottom, 400 ℃; 800 ℃, adjust temperature through 1.5KW microwave source 3, add the gas of pining for producing and discharge by exhaust outlet 2; Discharging speed is controlled according to the ball valve on the discharging opening 85, and the temperature that material gets into rotary kiln is 780 ℃, in rotary kiln, heats; Be heated to 950 ℃, be incubated 1 hour.Through detecting: the content of manganese is 71.5%, and colour consistency is better, no sintering phenomenon.
The manganese dioxide of application 2: 800kg gets into the microwave shaft kiln from feed hopper 1, and heating-up temperature is respectively 100 ℃ from top to bottom, 400 ℃; 970 ℃; Adjust through 3KW microwave source 3, discharging speed is controlled according to the ball valve on the discharging opening 85, and the temperature that material gets into rotary kiln is 950 ℃; In rotary kiln, add insulation, be incubated 1 hour.Through detecting: the content of manganese is 71.6%, and colour consistency is better, and slight sintering phenomenon is arranged.
Claims (4)
1. the sintering furnace that microwave combines with thermal source comprises a microwave shaft (tower) furnace, it is characterized in that the discharging opening of said microwave shaft (tower) furnace is connected with the charging aperture of single-revolution kiln.
2. the sintering furnace that microwave according to claim 1 combines with thermal source, the discharging opening that it is characterized in that said microwave shaft (tower) furnace is connected with the device for transporting objects of the charging aperture of said rotary kiln through a transition.
3. the sintering furnace that microwave according to claim 1 and 2 combines with thermal source; It is characterized in that said microwave shaft (tower) furnace comprises housing; Be provided with vertical boiler tube in the housing, the top of housing is provided with feed hopper and is connected with boiler tube with exhaust outlet, and the discharging opening of band valve is located at lower part of frame and is connected with boiler tube; The neighboring of housing is provided with some microwave sources, is filled with insulation material between housing and the boiler tube.
4. the sintering furnace that microwave according to claim 3 combines with thermal source is characterized in that said rotary kiln comprise movable cylindrical shell, driving activity cylindrical shell transmission device, the burning heater that is located at movable cylindrical shell discharge end that rotates, the kiln hood sealing device that is located at movable cylindrical shell feed end; Said kiln hood sealing device comprises the fixed cylinder that docks with movable cylindrical shell; The neighboring of the interface of fixed cylinder and movable cylindrical shell seals through the seal ring structure of the interior filled stone ink material that is connected with fixed cylinder or movable cylindrical shell, and the charging aperture of said rotary kiln is located on the fixed cylinder of said kiln hood sealing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203041166U CN202254814U (en) | 2011-08-19 | 2011-08-19 | Microwave and heat source combined sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203041166U CN202254814U (en) | 2011-08-19 | 2011-08-19 | Microwave and heat source combined sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202254814U true CN202254814U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203041166U Expired - Lifetime CN202254814U (en) | 2011-08-19 | 2011-08-19 | Microwave and heat source combined sintering furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN202254814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2011
- 2011-08-19 CN CN2011203041166U patent/CN202254814U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190506 Address after: 410013 No. 178 Changxing Road, Furong District, Changsha City, Hunan Province Patentee after: Hunan Longtai Environmental Energy Technology Co., Ltd. Address before: 410126 No. 178 Changxing Road, Longping High-tech Park, Changsha City, Hunan Province Patentee before: ChangSha SYNO-THERM Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |