CN103983100B - A kind of external heat preserving device being suitable for rotary kiln height temperate zone - Google Patents
A kind of external heat preserving device being suitable for rotary kiln height temperate zone Download PDFInfo
- Publication number
- CN103983100B CN103983100B CN201410244525.XA CN201410244525A CN103983100B CN 103983100 B CN103983100 B CN 103983100B CN 201410244525 A CN201410244525 A CN 201410244525A CN 103983100 B CN103983100 B CN 103983100B
- Authority
- CN
- China
- Prior art keywords
- heat insulation
- insulation wall
- rotary kiln
- sidepiece
- heat
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a kind of external heat preserving device being suitable for rotary kiln height temperate zone, comprise sidepiece heat insulation wall, two ends end part seal door, triangle rain and snow thermal-insulating sealing ceiling, fixed support, bottom heat insulation wall and base for supporting.Fixed support forms a rectangular structure, two ends are provided with end part seal door, hermatic door has the circular hole matched with rotary kiln profile, two sides are sidepiece heat insulation walls, wherein a sidepiece heat insulation wall is provided with the observation panel be made up of pyroceram, top is triangle rain and snow thermal-insulating sealing ceiling, and bottom is bottom heat insulation wall, is base for supporting below the heat insulation wall of bottom.Feature of the present invention has structure simple; Easy to operate; High insulating effect; Windproof, rainproof, snow defence, anti-frosting function are given prominence to; The present invention is fixed on Dayao pedestal, removable during Dayao maintenance, facilitates inspection and maintenance; The present invention also possesses long service life, operation maintenance workload is little, operating cost is low advantage.
Description
Technical field
The present invention relates to a kind of external heat preserving device, particularly a kind of rotary kiln (salic sinter leaching kiln, cement rotary kiln, calcination rotary kiln) high temperate zone (containing combustion zone, clinkering zone, point to ungird, preheating zone) external heat preserving device.
Background technology
Aluminium oxide, cement, lime, charcoal elements etc. are in large industrialized production process, need ore, concentrate, intermediate product to carry out to sinter, roasting.Such as in coloured and iron and steel industry process: the need of production of aluminium oxide carries out roasting to the grog in production process, aluminium hydroxide; In charcoal element production process, petroleum coke is calcined; The calcining of clinker in cement production process; The pellet of blast furnace ironmaking is produced, external " SL/RN method ", " Krupp method " in ironmaking processes; Tin and lead etc. are extracted in chloridizing volatilization roasting.In ore dressing process, also need to carry out magnetizing roast to poor iron ore, the weak magnetic making ore original changes into ferromagnetism, is beneficial to magnetic separation.The advantages such as adaptability to raw material is strong, utilization rate is high owing to having for rotary kiln, and product sulfur content is low, uniform quality, and output is high, and structure is simple, easy to operate, as burning till or calciner and being used widely.
Because the physical and chemical process in rotary kiln is very complicated, existing gas flowing, fuel combustion, also have the processes such as heat transmission and material movement.So, in the construction and actual production operation of rotary kiln device, all face many problems.At present, mainly there is following problem: 1. investment is large, compares vertical kiln equipment and capital construction, investment generally will exceed 10 ~ 20%; 2. the steel quantity consumption of specific yield is large, and generally larger than shaft kiln 30 ~ 50%; 3. rotary kiln floor space is large; Power consumption when 4. runing is many; 5. kliner coating radiation loss is large, and energy consumption is high.
In the problems referred to above, 3. 1. ~ the be fixed assets one-time investment problem, and 4. reduce by converter technique and steady operation and controlling.5. be belong to the long-standing problem of running, is the most potential, matter of utmost importance also urgently to be resolved hurrily.
Large for kliner coating radiation loss, energy consumption is high.Heat preserving method conventional at present has 2 kinds: one is coated with last layer thermostable heat-isolating coating at kiln liner flame retardant coating brick, and about 2 ~ 5mm is thick, can reduce outside kliner coating temperature 5 ~ 15 DEG C.Due to be coated with coat after, the effective internal diameter of rotary kiln, namely material movement space can be reduced; In addition in rotary kiln running process, heat insulating coatings layer is clashed in the athletic meeting of material repeatedly, and the time one is long, and dope layer can peel off from interior being lining with, and not only loses heat insulation effect, also can corrosion materials.Have much room for improvement in this way.Second method is coated with last layer thermostable heat-isolating coating on the outer sheetmetal of kiln, reduces the heat radiation of kiln crust whereby.When the outer sheetmetal of kiln is not coated with insulating moulding coating, if kiln inner lining refractory is burned and comes off, the outer steel plate of kiln can be rubescent, and operating personnel are very easy to find problem; But after thermostable heat-isolating material is painted on kiln crust, operating personnel just can't see the actual conditions of the outer steel plate of kiln, easily produce potential safety hazard, affect the normal operation of rotary kiln; Moreover thermostable heat-isolating material is painted on kiln crust, operates with kiln, stand to expose to the sun and rain, the time has been grown, and also easily peels off, and loses heat insulation effect.
For these reasons, these the two kinds methods strengthening insulation are all difficult to be used widely in actual production.
Summary of the invention
The object of this invention is to provide that a kind of structure is simple, easy for operation, high insulating effect, do not affect normal operating, long service life, operation maintenance workload is little, operating cost the is low device being suitable for rotary kiln Surgery therapy.
A kind of rotary kiln (salic sinter leaching kiln, cement rotary kiln, calcination rotary kiln) high temperate zone (clinkering zone) external heat preserving device of the present invention, comprises sidepiece heat insulation wall, two ends end part seal door, triangle rain and snow thermal-insulating sealing ceiling, fixed support, bottom heat insulation wall and base for supporting; Fixed support forms a rectangular structure, two ends are provided with two ends end part seal door, hermatic door has the circular hole matched with rotary kiln profile, two sides are sidepiece heat insulation walls, wherein a sidepiece heat insulation wall is provided with the observation panel be made up of pyroceram, top is triangle rain and snow thermal-insulating sealing ceiling, and bottom is bottom heat insulation wall, is base for supporting below the heat insulation wall of bottom.The described sidepiece heat insulation wall being provided with the observation panel be made up of pyroceram, is made up of resistance to more than 600 DEG C heat insulation glass, possesses the function of radiation proof, thermostable transparent.Operating personnel can see kiln exocuticle situation through sidepiece heat insulation wall, if having kiln liner tile to be burned or the phenomenon that drops occurs, kliner coating is rubescent, and operating personnel intuitively can see rubescent or other abnormal conditions of kliner coating.Described triangle rain and snow thermal-insulating sealing ceiling inside is made up of steel plate, the external coated insulating having 45 ~ 55mm thick, the reflect heat that rotary kiln height temperate zone kliner coating is radiated on ceiling can be gone back, prevent external heat conduction and heat radiation by outside effectively insulating heat-insulation layer again.Heat insulation wall inside, described bottom is made up of steel plate, outside is also coated with the thick insulating of 45 ~ 55mm, the reflect heat that rotary kiln height temperate zone kliner coating can be radiated on the heat insulation wall of bottom is gone back, and prevents external heat conduction and heat radiation again by outside effectively insulating heat-insulation layer.Described end part seal door inside is made up of steel plate, the external coated insulating having 45 ~ 55mm thick, the reflect heat that rotary kiln height temperate zone kliner coating is radiated on end part seal door can be gone back, prevent external heat conduction and heat radiation by outside effectively insulating heat-insulation layer again, can also prevent the air in the cavity that formed by rotary kiln external heat preserving device and rotary kiln body and extraneous convection heat transfer' heat-transfer by convection from taking away heat.Described fixed support and the main counter-lateral quadrents heat insulation wall of base for supporting, end part seal door, triangle rain and snow thermal-insulating sealing ceiling, bottom heat insulation wall play fixing and supporting role.
Further improvement of the present invention changes the corner angle of isosceles triangle Rainproof heat-insulation sealing ceiling into 140 ° ~ 155 °, be wherein optimum with 155 ° again, the ceiling of this corner angle is to meet materials reasonable, under support strength meets the prerequisite of production requirement completely, farthest decrease the heat loss through radiation that ceiling two drift angle limit is mutual, increase from the thermal-radiating reflection of other parts of incubation cavity, therefore heat loss through radiation can be down to minimum by this kind of ceiling, plays good insulation effect.This improves the convenience mainly considered and reduce ceiling radiation heat radiation, be convenient to the discharge of ceiling sleet, increase ceiling intensity, improve economy and construction.
In the present invention, the profile of described rain and snow thermal-insulating sealing ceiling is isosceles triangle.Fixed support, base for supporting, the steel plate of rain and snow thermal-insulating sealing ceiling, bottom heat insulation wall, sidepiece heat insulation wall and two ends end part seal door is stainless steel or ordinary steel.
Operation principle of the present invention sketch under:
During normal production, the thermal efficiency of rotary kiln is generally about 45%, and remaining heat is then consumed in the imperfect combustion in kiln waste gas, kiln discharge flying dust, clinker discharging, kliner coating heat radiation and kiln.Wherein, kliner coating heat radiation accounts for 7% of rotary kiln total heat expenditure.The clinkering zone of rotary kiln is again flame combustion band simultaneously, and the temperature of charge of clinkering zone generally need reach 900 ~ 1300 DEG C of ability to carry out sintering and chemical reaction quickly.Now, the temperature of clinkering zone kiln crust often reaches more than 200 DEG C, and especially when kiln inner lining refractory is burnt de-, kiln crust steel plate is rubescent, shinny, and at this moment kiln Skin temperature reaches more than 500 DEG C.So strengthen rotary kiln Surgery therapy, reducing kliner coating heat radiation is the Important Action that rotary kiln is saved energy and reduce the cost.
During normal production, this device is arranged on the outside of rotary kiln high-temperature region (mainly referring to clinkering zone and preheating decomposition zone), the sidepiece heat insulation wall of this device, is made up of resistance to more than 600 DEG C heat insulation glass, possesses the function of radiation proof, thermostable transparent.Operating personnel can see kiln exocuticle situation through sidepiece heat insulation wall, if having inner liner of rotary kiln brick to be burned or the phenomenon that drops occurs, kliner coating is rubescent, and through high temp glass, operating personnel intuitively can see rubescent or other abnormal conditions of kliner coating.Triangle rain and snow thermal-insulating sealing ceiling inside is made up of steel plate, the external coated insulating having 45 ~ 55mm thick, the reflect heat that rotary kiln height temperate zone kliner coating is radiated on ceiling can be gone back, prevent external heat radiation by outside effectively insulating heat-insulation layer again, its profile is that triangle is mainly considered to be convenient to the discharge of ceiling sleet and the convenience of construction.Heat insulation wall inside, bottom is made up of steel plate, and outside is also coated with the thick insulating of 45 ~ 55mm, and the reflect heat that rotary kiln height temperate zone kliner coating can be radiated on the heat insulation wall of bottom is gone back, and prevents external heat radiation again by outside effectively insulating heat-insulation layer.End part seal door inside is made up of steel plate, the external coated insulating having 45 ~ 55mm thick, the reflect heat that rotary kiln height temperate zone kliner coating is radiated on end part seal door can be gone back, prevent external heat radiation by outside effectively insulating heat-insulation layer again, air in the cavity that formed by rotary kiln external heat preserving device and rotary kiln body can also be reduced greatly and extraneous convective zone walks heat.Fixed support and the main counter-lateral quadrents heat insulation wall of base for supporting, end part seal door, triangle rain and snow thermal-insulating sealing ceiling, bottom heat insulation wall play fixing and supporting role, effectively improve this device intensity and service life, make to reach more than 8 years continuous service life.
This device high insulating effect, the heat accounting for rotary kiln total heat expenditure nearly 6% can be saved, cheap, possess windproof, rainproof, snow defence, anti-frosting function, can reach service life more than 8 years, operation maintenance workload is little, operating cost is low, be suitable for as rotary kiln (salic sinter leaching kiln, cement rotary kiln, calcination rotary kiln) high temperate zone (combustion zone, clinkering zone, point to ungird, preheating zone) attemperator outward.
Accompanying drawing explanation
Accompanying drawing 1 is embodiment of the present invention front view.
Accompanying drawing 2 is embodiment of the present invention side view.
Accompanying drawing 3 is sidepiece heat insulation wall figure of the present invention.
Accompanying drawing 4 is two ends of the present invention end part seal door schematic diagrames.
Detailed description of the invention
The specific embodiment of the present invention, describes in detail below in conjunction with accompanying drawing.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the present invention includes sidepiece heat insulation wall 2, two ends end part seal door 6, triangle rain and snow thermal-insulating sealing ceiling 1, fixed support 3, base for supporting 5, bottom heat insulation wall 4; A rectangular structure is formed by fixed support, two ends are provided with two ends end part seal door 6, hermatic door has the circular hole matched with rotary kiln profile, two sides are sidepiece heat insulation walls 2, wherein a sidepiece heat insulation wall is provided with the observation panel be made up of pyroceram 7, top is triangle rain and snow thermal-insulating sealing ceiling 1, and bottom is bottom heat insulation wall 4, is base for supporting 5 below the heat insulation wall of bottom.
In the present invention, the sidepiece heat insulation wall being made up of observation panel pyroceram is installed, be made up of with heat insulation wall framework resistance to more than 600 DEG C heat insulation glass 7, and heat insulation glass wraps up by heat insulation wall framework.
Further improvement of the present invention changes the corner angle of isosceles triangle Rainproof heat-insulation sealing ceiling 1 into 140 ° ~ 155 °, be wherein optimum with 155 ° again, the ceiling of this corner angle is to meet materials reasonable, under support strength meets the prerequisite of production requirement completely, farthest decrease the heat loss through radiation that ceiling two drift angle limit is mutual, increase from the thermal-radiating reflection of other parts of incubation cavity, therefore heat loss through radiation can be down to minimum by this kind of ceiling, plays good insulation effect.Ceiling is made up of heat reflection steel plate 8, the external coated insulating 9 having 45 ~ 55mm thick of steel plate.
In the present invention, the inside of described bottom heat insulation wall and end part seal door is made up of 2mm heat reflection steel plate 8, and outside is coated with the thick insulating of 45 ~ 55mm 9 too.
In the present invention, the profile of described rain and snow thermal-insulating sealing ceiling is isosceles triangle.Fixed support 3, base for supporting 5, the steel plate of rain and snow thermal-insulating sealing ceiling 1, bottom heat insulation wall 4, sidepiece heat insulation wall 2 and two ends end part seal door 6 is stainless steel or ordinary steel.
A kind of embody rule of the present invention, be be used in rotary kiln energy conservation in the middle of, without the need to increasing input, can reach and strengthen rotary kiln Surgery therapy, reduce kliner coating heat radiation, reduce harmful gas emission, energy-saving and cost-reducing object, generally can save the heat accounting for rotary kiln total heat expenditure nearly 6%, and this device also has easy for operation, high insulating effect, long service life (more than 8 years can be reached), operation maintenance workload is little, operating cost is low, do not affect the various features such as the normal operating of rotary kiln, the sidepiece heat insulation wall of this device has pyroceram to make in addition, convenient operation personal observations, human users's security can be strengthened.
Claims (4)
1. be suitable for the external heat preserving device in rotary kiln height temperate zone, it is characterized in that: comprise sidepiece heat insulation wall, two ends end part seal door, triangle rain and snow thermal-insulating sealing ceiling, fixed support, bottom heat insulation wall and base for supporting; Fixed support forms a rectangular structure, two ends are separately installed with end part seal door, hermatic door has the circular hole matched with rotary kiln profile, two sides are sidepiece heat insulation walls, wherein a sidepiece heat insulation wall is provided with the observation panel be made up of pyroceram, top is triangle rain and snow thermal-insulating sealing ceiling, and bottom is bottom heat insulation wall, is base for supporting below the heat insulation wall of bottom; Described sidepiece heat insulation wall, two ends end part seal door, triangle rain and snow thermal-insulating sealing ceiling and bottom heat insulation wall are made up of the steel plate of 2 ~ 5mm, the external coated insulating having 45 ~ 55mm thick of steel plate; The corner angle of triangle rain and snow thermal-insulating sealing ceiling is 140 ° ~ 155 °.
2. a kind of external heat preserving device being suitable for rotary kiln height temperate zone according to claim 1, it is characterized in that: described in the sidepiece heat insulation wall being made up of observation panel pyroceram is installed, be made up of resistance to more than 600 DEG C heat insulation glass and heat insulation wall framework, and heat insulation glass wraps up by heat insulation wall framework.
3. a kind of external heat preserving device being suitable for rotary kiln height temperate zone according to claim 1 and 2, is characterized in that: the profile of described triangle rain and snow thermal-insulating sealing ceiling is isosceles triangle.
4. a kind of external heat preserving device being suitable for rotary kiln height temperate zone according to claim 1, it is characterized in that: fixed support, base for supporting, the steel plate of rain and snow thermal-insulating sealing ceiling, bottom heat insulation wall, sidepiece heat insulation wall and two ends end part seal door is stainless steel or ordinary steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244525.XA CN103983100B (en) | 2014-06-05 | 2014-06-05 | A kind of external heat preserving device being suitable for rotary kiln height temperate zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244525.XA CN103983100B (en) | 2014-06-05 | 2014-06-05 | A kind of external heat preserving device being suitable for rotary kiln height temperate zone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103983100A CN103983100A (en) | 2014-08-13 |
| CN103983100B true CN103983100B (en) | 2015-10-28 |
Family
ID=51275167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410244525.XA Expired - Fee Related CN103983100B (en) | 2014-06-05 | 2014-06-05 | A kind of external heat preserving device being suitable for rotary kiln height temperate zone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103983100B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480298A (en) * | 2014-12-26 | 2015-04-01 | 中铝广西有色崇左稀土开发有限公司 | Ion type rare earth oreburning kiln |
| CN111620710A (en) * | 2020-06-29 | 2020-09-04 | 江苏君耀耐磨耐火材料有限公司 | Composite high-alumina silicon carbide brick for cooperatively treating cement kiln predecomposition zone |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5928602A (en) * | 1995-04-25 | 1999-07-27 | Jarkko Linnainmaa | Metal waste processing facility |
| CN1967120A (en) * | 2005-11-15 | 2007-05-23 | 周玉芬 | Dry method cement rotary kiln surface waste-heat utilization method and device |
| CN201043857Y (en) * | 2007-04-13 | 2008-04-02 | 青铜峡铝业集团有限公司 | Novel power supply device for rotary kiln |
| CN101290190A (en) * | 2008-01-25 | 2008-10-22 | 钱建荣 | Cement rotary kiln barrel radiation, reclaiming and utilizing device |
| CN202041070U (en) * | 2011-03-22 | 2011-11-16 | 南京云高新型材料有限公司 | High-temperature roasting device |
| CN102636022A (en) * | 2012-04-28 | 2012-08-15 | 中国科学院广州能源研究所 | Cylinder wall residual heat recovery and heat transfer device of dry method cement rotary kiln |
-
2014
- 2014-06-05 CN CN201410244525.XA patent/CN103983100B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5928602A (en) * | 1995-04-25 | 1999-07-27 | Jarkko Linnainmaa | Metal waste processing facility |
| CN1967120A (en) * | 2005-11-15 | 2007-05-23 | 周玉芬 | Dry method cement rotary kiln surface waste-heat utilization method and device |
| CN201043857Y (en) * | 2007-04-13 | 2008-04-02 | 青铜峡铝业集团有限公司 | Novel power supply device for rotary kiln |
| CN101290190A (en) * | 2008-01-25 | 2008-10-22 | 钱建荣 | Cement rotary kiln barrel radiation, reclaiming and utilizing device |
| CN202041070U (en) * | 2011-03-22 | 2011-11-16 | 南京云高新型材料有限公司 | High-temperature roasting device |
| CN102636022A (en) * | 2012-04-28 | 2012-08-15 | 中国科学院广州能源研究所 | Cylinder wall residual heat recovery and heat transfer device of dry method cement rotary kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103983100A (en) | 2014-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204141989U (en) | A kind of energy-saving double-layer fuel gas table kiln | |
| CN103983100B (en) | A kind of external heat preserving device being suitable for rotary kiln height temperate zone | |
| CN201555446U (en) | Smelting rotary hearth furnace for directly reducing nickel | |
| CN204325222U (en) | One is dry puts out ring type air flue masonry | |
| CN101418380B (en) | Nontank shaft type electric resistance furnace smelting magnesium apparatus and smelting magnesium method thereof | |
| CN102633494A (en) | Powder material with high infrared radiance in broadband and preparation method of power material | |
| CN205192239U (en) | Full fibre box resistance furnace | |
| CN203731854U (en) | Parallel type lifting high-temperature energy-saving resistance furnace | |
| CN203501775U (en) | Vertical roasting reduction furnace | |
| CN203642680U (en) | Tunnel kiln waste heat using system | |
| CN202747773U (en) | Energy-saving ceramic particle rotary kiln | |
| CN201917202U (en) | Continuous burning-roasting shaft kiln | |
| CN203848675U (en) | Energy-saving lining special for high-temperature heating furnace | |
| CN203869491U (en) | Heat preservation type tunnel kiln | |
| CN205119795U (en) | Energy -saving crucible fibre stove | |
| CN207247917U (en) | Shaft furnace material electric heater unit | |
| CN202532886U (en) | Compound furnace wall for vertical volatilization furnace | |
| CN106382817B (en) | Oxygen enriched molten bath smelting furnace | |
| CN202393208U (en) | Domestic ceramic kiln | |
| CN202688201U (en) | Novel environment friendly and energy saving lime kiln | |
| CN205957697U (en) | Rotary kiln is decreased in solar heat protection | |
| CN206974175U (en) | A kind of energy saving temperature controlling industrial furnace | |
| CN206974174U (en) | A kind of energy-saving industrial electric furnace | |
| CN217877022U (en) | Energy-saving heat-preservation and heat-insulation structure of titanium dioxide calcining rotary kiln | |
| CN206875953U (en) | A kind of sloping hearth furnace of Tape movement cover plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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: 20151028 Termination date: 20170605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |