CN201314781Y - Lining of rotary kiln and secondary air port structure thereof - Google Patents
Lining of rotary kiln and secondary air port structure thereof Download PDFInfo
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- CN201314781Y CN201314781Y CNU2008202202582U CN200820220258U CN201314781Y CN 201314781 Y CN201314781 Y CN 201314781Y CN U2008202202582 U CNU2008202202582 U CN U2008202202582U CN 200820220258 U CN200820220258 U CN 200820220258U CN 201314781 Y CN201314781 Y CN 201314781Y
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- rotary kiln
- inner liner
- kiln
- lining
- tuyere structure
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Abstract
The utility model relates to a rotary kiln in the production field of carbon, in particular to a lining of the rotary kiln and a secondary air port structure thereof. The lining comprises a metal kiln body and the secondary air port structure, a light pouring material thermal insulation layer is arranged at the inside of the metal kiln body, lining equal part strips with grooves and the lining equal part strips with bosses are formed on the light pouring material thermal insulation layer. The utility model has the advantages that the cracking degree of construction joints can be effectively mitigated; the grooves at two sides of the lining equal part strips formed by a special template are tightly snapped with the lining equal part strips after pouring, thereby being capable of increasing the overall strength of the lining of the kiln; high-temperature materials which run in the rotary kiln can be effectively blocked and can not enter the thermal insulation layer directly, thereby being conductive to protecting the integrity of the thermal insulation layer and simultaneously avoiding the metal kiln body from being damaged by the high-temperature materials. The lining can directly achieve the effect of prolonging the service life of the lining of the rotary kiln, significantly reduce the maintenance cost of the lining of the rotary kiln and effectively reduce the production cost of carbon by calcination.
Description
Technical field
The utility model relates to the rotary kiln of the plain production field of charcoal, particularly relates to a kind of inner liner of rotary kiln and second tuyere structure thereof.
Background technology
Refractory lining is that rotary kiln carries out the working face that high-temperature calcination is produced, and is the primary structure that rotary kiln bears high temperature, generally adopts castable refractory to form at the metal kiln internal casting that has the heating resisting metal anchoring piece.In order to reduce the thermal conductivity of kiln lining material, and then the minimizing liner passes to the heat of metal kiln body, reduce kiln external surface temperature, before the castable refractory casting and constructing, paste kiln body inner surface earlier and pour into a mould the lightening casting material thermal insulation layer that a layer thickness is 60～80mm, to guarantee that kiln external surface temperature is below 250 ℃.
Existing rotary kiln castable refractory liner generally according to the diameter of kiln, radially is divided into some equal portions with its liner along the kiln body when casting and constructing, prop up template along the kiln length direction, equal portions bar of elongated cast at every turn; When the set strength that reaches castable refractory, finish the form removal operation after, rotate the kiln body, make the equal portions that the bar liner is relative therewith arrive pouring position and carry out casting and constructing.Be rotated further the kiln body subsequently, rotational angle determine that following kiln body (containing liner) is in the principle that minimum lays particular stress on state.After the castable refractory casting and constructing is finished half bar number, remaining casting and constructing does not re-use template, but directly cast in the space between two lining equal-dividing bars, and still follow the kiln body and be in the principle that minimum lays particular stress on state and rotate the kiln body, until the castable refractory liner of being poured into a mould along complete cylindrical shell of the elongated formation of kiln body.This carbon rotary kiln inner lining structure has the shortcoming of following several respects: 1, because the lead-in casting and constructing and the asynchronism(-nization) of solidifying in each equal portions, between each lining equal-dividing bar, formed one and connected long, and the construction straight joint of through heat insulating casting material layer radially of whole kiln, made the globality of castable refractory liner relatively poor; 2, above-mentioned construction straight joint is when rotary kiln turns round, behind long-time high temperature action, because changing, the heavily burning line of castable refractory causes its Volume Changes, cause this construction straight joint cracking and expansion gradually, the less high-temperature material of granularity is along with the kiln body rotates in the kiln, in this crack, constantly repeat the process of intrusion-outflow, aggravating the expansion in crack; 3, in the crack of constantly widening, high-temperature material arrives at the heat insulating casting material surface.Because the heat resistance of thermal insulation layer is limited, gradually by the high-temperature material scaling loss and rinse eating away, this crack will make high-temperature material directly arrive the metal kiln body inner surface, jeopardize the safe in utilization of kiln body.
Rotary kiln is the plain and burnt visual plant of calcining of graphite products production process PetroChina Company Limited. of charcoal, mainly partly is made up of kiln body, liner, kiln hood cover, the heavy grey chamber of kiln tail, combustion system, secondary wind feed system etc.The secondary wind feed system of forming by blower fan, air channel outside secondary air channel and the kiln that particularly on the kiln body, is provided with and be located at overfiren air port in the kiln, its effect is in certain location fresh air to be infeeded in the kiln, makes the fugitive constituent that material produces in calcination process in the kiln be fully burned, improve calcining belt temperature, eliminate the carbon calcination tail gas pollution.
Existing rotary kiln, wrap up in the straight-through metal tube of refractory material as secondary air channel outside all adopting, and it is stretched in the kiln, makes overfiren air port direction and kiln body center line form certain angle, rely on to be attached thereto outer air channel of the kiln that connects and blower fan, in kiln, infeed secondary wind.Secondary air channel stretches into the purpose in the kiln, is to prevent that calcining materials from pouring in down a chimney into overfiren air port when the kiln body rotates.The secondary wind feed system of this structure has the shortcoming of following several respects: 1, the outer structure of refractory of wrapping up in of secondary air channel employing, owing in kiln, be blown into cold wind from metal pipe internal surface during work, and the refractory material protective layer of wrapping up in outward stretches into and bears high temperature in the kiln, on the thickness about 100mm, its thermograde reaches 12～13 ℃/mm, and it is very unfavorable that secondary air channel is stretched into the inner branch of kiln; 2, because metal tube is different with the expansion rate of refractory material, the refractory material protective layer that impels secondary air channel to stretch into part in the kiln comes off rapidly, and then burns metal tube; 3, because the structural defective of above-mentioned secondary air channel and working environment abominable generally has only 1/3～1/4 of life-span of kiln liner its service life.In operation process, often run into and be forced to stop the situation that kiln is repaired secondary air channel, the thermal shock that has aggravated kiln lining damages; 4, owing to the existence of aforesaid drawbacks, the high-temperature coke that causes rotating in the kiln body pours in down a chimney into the air channel from overfiren air port, very easily burns blower fan, the personal safety that can jeopardize operating personnel when serious; 5, producing in order not influence calcining, all is to take the simplest measure after producing a period of time usually, and overfiren air port is blocked, and causes no secondary wind supply in the kiln; 6,, make the temperature of burning zone in the kiln and length can't realize that directly the burnt quality in back is forged in influence by the technological requirement of expection because no secondary wind infeeds, and the fugitive constituent that material produces in calcination process in the kiln can not in time burn; 7, in order to keep reaching in the kiln its temperature conditions, the kiln hood burner needs continuous heat supply, can not realize not having the fuel calcining; 8, the fugitive constituent that does not have completing combustion burns with flow of flue gas to kiln tail and even heavy grey chamber, even directly discharges, and the flammable composition of a large amount of high heating values is slatterned, and also causes the carbon calcination tail gas pollution simultaneously.
The utility model content
The utility model is exactly that a kind of inner liner of rotary kiln and second tuyere structure thereof are provided in order to solve the problems of the technologies described above, purpose is to solve that existing inner liner of rotary kiln globality is poor, life-span of kiln liner short, behind the lining processing seam cracking, cause thermal insulation layer to be rinsed sky and cause metal kiln body to bear the problem of high temperature injury.
Be achieved in that a kind of inner liner of rotary kiln and second tuyere structure thereof for reaching above-mentioned purpose the utility model, it comprises metal kiln body and second tuyere structure, be provided with the lightening casting material thermal insulation layer in the metal kiln body inboard, on the lightening casting material thermal insulation layer, be provided with the lining equal-dividing bar of band groove and the lining equal-dividing bar of band boss.
The both sides of the lining equal-dividing bar of described band groove are provided with groove.
The lining equal-dividing bar of described band groove is connected with the lining equal-dividing bar of band boss.
The both sides of the lining equal-dividing bar of described band boss are provided with boss, the mutual interlock of groove of the lining equal-dividing bar of boss and band groove.
The cross sectional shape of described boss is semicircle, circular arc, half elliptic, rectangle or trapezoidal.
The size range of the radius of described boss, height or the length of side is 3～150mm.
Described boss position of center line is apart from lightening casting material thermal insulation layer bottom 30～150mm.
Described lightening casting material thermal insulation layer thickness is 60～80mm.
Described second tuyere structure, comprise inner liner of rotary kiln, secondary air duct, wherein secondary air duct is a broken line shape secondary air duct, and broken line shape secondary air duct communicates around the shape air channel with the kiln that has blower fan is outer, is provided with overfiren air port on the inner liner of rotary kiln of broken line shape secondary air duct outlet.
Described kiln is outer to be with circle-shaped or be looped around the kiln external body with spiral form around the shape air channel.
The quantity of described broken line shape secondary air duct inlet is 1～30.
Described broken line shape secondary air duct inlet is that annular configuration or dislocation are arranged.
Described kiln is outer to be whole spiral rings around kiln body or grading ring around the kiln body around the shape air channel.
Described kiln is outer to be had a big blower fan air feed or has many little blower fan air feeds around the shape air channel.
The knuckle quantity of described broken line shape secondary air duct is 1～5, and the angle of its knuckle is 45～150 °.
Described broken line shape secondary air duct and overfiren air port are poured into a mould or are built by laying bricks or stones in the kiln lining after direct forming or the prefabricated shaping in cast or when building kiln lining by laying bricks or stones.
The cross sectional shape of described broken line shape secondary air duct and overfiren air port is circle, square or rectangle, and the diameter or the length of side are of a size of 20～300mm.
The described prefabricated broken line shape secondary air duct and the material of overfiren air port employing are the refractory material that is used for the carbon rotary kiln liner.
The protrusion height scope of described overfiren air port on the inner liner of rotary kiln surface is 1～200mm.
Described overfiren air port is concordant with the inner surface of inner liner of rotary kiln.
The utlity model has following advantage:
1, adopt quality refractory to water material feeding as inner liner of rotary kiln, the linear shrinkage performance that it is at high temperature less can effectively be alleviated the cracking degree of construction joint.
2, the lining equal-dividing bar grooves on two sides that forms of special template, through with after the tight interlock of casting lining equal portions bar, can increase the bulk strength of kiln liner.
3, the primary and secondary articulation port between formed each lining equal-dividing bar, effectively the high-temperature material in the shutoff rotary kiln running makes it directly not enter thermal insulation layer, helps protecting the intact of thermal insulation layer, also can avoid metal kiln body to be subjected to the infringement of high-temperature material simultaneously.
4, can directly receive the effect that prolongs the inner liner of rotary kiln life-span, obviously reduce the maintenance cost of inner liner of rotary kiln, effectively reduce the carbon calcination production cost.
5, simple in structure, economical and practical.
6, adopt second tuyere structure of the present utility model to change secondary air channel and stretch into the interior structure of kiln, the overfiren air port in the kiln just flushes with or slightly higher than the kiln lining inner surface with the kiln lining inner surface, can not be subjected to the mechanical shock when material tumbles in the kiln.When overfiren air port entered the solid accumulation district, material had only and enters overfiren air port on a small quantity in the kiln, and can only accumulate in the air channel on some positions that is easy to flow out.Therefore in the rotary kiln running process, can not produce the high-temperature material phenomenon that leaks outside.Because overfiren air port and passage thereof are cast or build by laying bricks or stones in the kiln liner that promptly its material is consistent with kiln liner material, admittedly can guarantee that its service life and kiln lining are synchronous.Can guarantee the secondary wind air feed point and the wind supply quantity of technique initialization, can guarantee normal supply secondary wind in kiln for a long time, help making full use of the burning of petroleum coke fugitive constituent, keep long burning zone and high temperature thereof, improve and forge the burnt product quality in back.Because making full use of of fugitive constituent for the outer heat supply of cancellation kiln provides good condition, can realize not having the fuel calcining, improves the energy-conservation level of carbon calcination operation.
Description of drawings
Fig. 1 is the half way casting and constructing template schematic cross-section of going up of the present utility model.
Fig. 2 is a local structure for amplifying schematic diagram of going up half way casting and constructing template of the present utility model.
Fig. 3 is the structural representation of the utility model inner liner of rotary kiln.
Fig. 4 is the structural representation of normal air feed position in the utility model kiln.
Fig. 5 is the structural representation that enters the solid accumulation zone position in the utility model kiln.
Fig. 6 is the structural representation when turning to a high position in the utility model kiln.
Among the figure, 1, metal kiln body; 2, lightening casting material thermal insulation layer; 3, casting and constructing template; 4, the lining equal-dividing bar of band groove; 5, groove; 6, the lining equal-dividing bar of band boss; 7, boss; 8, inner liner of rotary kiln; 9, broken line shape secondary air duct; 10, overfiren air port; 11, kiln is outer around the shape air channel.
The specific embodiment
Below the utility model is described in further detail for the description by the specific embodiment, but protection domain of the present utility model is not limit by embodiment.Those skilled in the art can make various modifications or improvement according to basic thought of the present utility model, but only otherwise break away from basic thought of the present utility model, all within scope of the present utility model.
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model inner liner of rotary kiln and second tuyere structure thereof, comprise metal kiln body 1, be provided with lightening casting material thermal insulation layer 2 in metal kiln body 1 inboard, on lightening casting material thermal insulation layer 2, be provided with the lining equal-dividing bar 4 of band groove and the lining equal-dividing bar 6 of band boss, the both sides of the lining equal-dividing bar 4 of band groove are provided with groove 5, the lining equal-dividing bar 4 of band groove is connected with the lining equal-dividing bar 6 of band boss, the both sides of the lining equal-dividing bar 6 of band boss are provided with boss 7, boss 7 and groove 5 form the mutual interlock of mother-son mouth, the cross sectional shape of boss 7 is semicircle, circular arc, half elliptic, rectangle or trapezoidal, the radius of boss 7, the size range of the height or the length of side is 3～150mm, boss 7 position of center line are apart from lightening casting material thermal insulation layer 2 bottoms 30～150mm, and lightening casting material thermal insulation layer 2 thickness are 60～80mm.
A kind of implementation method of inner liner of rotary kiln 8 is: metal kiln body 1 inner surface that is having the heating resisting metal anchoring piece at first, pouring into a mould a layer thickness is the lightening casting material thermal insulation layer 2 of 60～80mm, prop up two-sided casting and constructing template 3 by predetermined equal portions size then, carried out casting and constructing by the material feeding kind of watering of design code again.Form the lining equal-dividing bar 4 of band groove after the form removal, then form groove 5 in its both sides.Be in the principle rotation kiln body that minimum lays particular stress on state according to kiln body and liner, finishing first half term successively has the template casting and constructing.The second half of casting and constructing then is directly to pour into a mould between the lining equal-dividing bar of two band grooves then, forms the lining equal-dividing bar 6 of band boss automatically, with the lining equal-dividing bar 4 formation mother-son mouth interlocks of band groove.In the second half of casting and constructing, still to be in the principle that minimum lays particular stress on state and rotate the kiln body according to kiln body and liner, until the castable refractory liner of being poured into a mould along complete cylindrical shell of the elongated formation of kiln body.
The utility model is not only applicable to inner liner of rotary kiln, is applicable to that other employing waters the inner liner of rotary kiln of material feeding liner yet.
Shown in Fig. 4-6, the second tuyere structure of rotary kiln, comprise inner liner of rotary kiln 8, secondary air duct, in rotary kiln metal kiln body 1, pour into a mould or build by laying bricks or stones the refractory material inner liner of rotary kiln 8 that has heat-insulation layer, inner liner of rotary kiln 8 is located at the inboard of metal kiln body 1, inner liner of rotary kiln 8 is provided with the secondary air duct that passes inner liner of rotary kiln 8 and metal kiln tube 1, wherein secondary air duct is a broken line shape secondary air duct 9, the quantity of broken line shape secondary air duct 9 inlets is 1～30, broken line shape secondary air duct 9 inlets are that annular configuration or dislocation are arranged, the knuckle quantity of broken line shape secondary air duct 9 is 1～5, the knuckle angle is 45～150 °, broken line shape secondary air duct 9 and overfiren air port 10 are poured into a mould or are built by laying bricks or stones in the kiln lining after direct forming or the prefabricated shaping in cast or when building kiln lining by laying bricks or stones, broken line shape secondary air duct 9 communicates around shape air channel 11 with the kiln that has blower fan is outer, kiln is outer to be with circle-shaped or be looped around the kiln external body with spiral form around shape air channel 11, kiln is outer to be whole spiral rings around kiln body or grading ring around the kiln body around shape air channel 11, kiln is outer to be had a big blower fan air feed or has many little blower fan air feeds around shape air channel 11, on the inner liner of rotary kiln 8 of broken line shape secondary air duct 9 outlets, be provided with overfiren air port 10, the cross sectional shape of broken line shape secondary road 9 and overfiren air port 10 is circular, square or rectangle, the diameter or the length of side are of a size of 20～300mm, the material that prefabricated broken line shape secondary air duct 9 and overfiren air port 10 adopt is the refractory material that is used for carbon rotary kiln liner 8, the protrusion height of overfiren air port 10 on inner liner of rotary kiln 8 surfaces is 1～200mm, and overfiren air port 10 is concordant with the inner surface of inner liner of rotary kiln 8.
In the rotary kiln operation process, blower fan is outer around the shape air channel by kiln, and cold wind is constantly sent into broken line shape secondary air duct, enter in the kiln via overfiren air port, in the rotary kiln operation process, overfiren air port does not contact with calcining materials on most of position, is in normal supply secondary wind state; When overfiren air port turns to the solid accumulation district, the stage casing in broken line shape air channel and kiln cross section Y-axis just form≤90 ° angle, a small amount of material in the overfiren air port that bleeds can not pour in down a chimney into kiln outer around the shape air channel; Be tending towards diminishing along with the kiln body rotates above-mentioned angle, material does not just more have the possibility of pouring in down a chimney; When described overfiren air port turns to a high position, not only broken away from the material district, and a small amount of material that enters overfiren air port during low level can flow out all also.This state that prevents that material from pouring in down a chimney will run through the overall process that carbon rotary kiln is produced.Several overfiren air ports are to be evenly distributed on the circumference of rotary kiln, and therefore when some next air ports are covered by material in the solid accumulation district, other overfiren air port is at air feed in kiln in addition.
Second tuyere structure in above-mentioned the utility model can be used in the rotary kiln of the second tuyere structure of other inner lining structure.
Claims (20)
1, inner liner of rotary kiln and second tuyere structure thereof, comprise metal kiln body (1) and second tuyere structure, it is characterized in that being provided with lightening casting material thermal insulation layer (2) in metal kiln body (1) inboard, be provided with the lining equal-dividing bar (4) of band groove and the lining equal-dividing bar (6) of band boss on lightening casting material thermal insulation layer (2), inner liner of rotary kiln (8) is provided with the secondary air duct that passes inner liner of rotary kiln (8) and metal kiln tube (1).
2, inner liner of rotary kiln according to claim 1 and second tuyere structure thereof is characterized in that the both sides of the lining equal-dividing bar (4) of described band groove are provided with groove (5).
3, inner liner of rotary kiln according to claim 1 and 2 and second tuyere structure thereof is characterized in that the lining equal-dividing bar (4) of described band groove is connected with the lining equal-dividing bar (6) of band boss.
4, inner liner of rotary kiln according to claim 1 and second tuyere structure thereof is characterized in that the both sides of the lining equal-dividing bar (6) of described band boss are provided with boss (7), groove (5) interlock mutually of the lining equal-dividing bar (4) of boss (7) and band groove.
5, inner liner of rotary kiln according to claim 4 and second tuyere structure thereof, the cross sectional shape that it is characterized in that described boss (7) are semicircle, circular arc, half elliptic, rectangle or trapezoidal.
6, inner liner of rotary kiln according to claim 4 and second tuyere structure thereof, the size range that it is characterized in that radius, height or the length of side of described boss (7) is 3～150mm.
7, inner liner of rotary kiln according to claim 4 and second tuyere structure thereof is characterized in that described boss (7) position of center line is apart from lightening casting material thermal insulation layer bottom 30～150mm.
8, inner liner of rotary kiln according to claim 1 and second tuyere structure thereof, the thickness that it is characterized in that described lightening casting material thermal insulation layer (2) is 60～80mm.
9, inner liner of rotary kiln according to claim 1 and second tuyere structure thereof, it is characterized in that described second tuyere structure, comprise inner liner of rotary kiln (8), secondary air duct, it is characterized in that secondary air duct is a broken line shape secondary air duct (9), broken line shape secondary air duct (9) communicates around shape air channel (11) with the kiln that has blower fan is outer, is provided with overfiren air port (10) on the inner liner of rotary kiln (8) of broken line shape secondary air duct (9) outlet.
10, inner liner of rotary kiln according to claim 9 and second tuyere structure thereof, it is characterized in that described kiln outer be with circle-shaped or be looped around the kiln external body around shape air channel (11) with spiral form.
11, inner liner of rotary kiln according to claim 9 and second tuyere structure thereof is characterized in that the quantity of described broken line shape secondary air duct (9) inlet is 1～30.
12,, it is characterized in that described broken line shape secondary air duct (9) inlet is that annular configuration or dislocation are arranged according to claim 9 or 11 described inner liner of rotary kiln and second tuyere structures thereof.
13, inner liner of rotary kiln according to claim 11 and second tuyere structure thereof, the knuckle quantity that it is characterized in that described broken line shape secondary air duct (9) is 1～5, the angle of its knuckle is 45～150 °.
14, inner liner of rotary kiln according to claim 9 and second tuyere structure thereof, it is characterized in that described kiln outer be whole spiral rings around kiln body or grading ring around the kiln body around shape air channel (11).
15,, it is characterized in that having a big blower fan air feed or having many little blower fan air feeds around shape air channel (11) outside the described kiln according to claim 9 or 10 described inner liner of rotary kiln and second tuyere structures thereof.
16, inner liner of rotary kiln according to claim 9 and second tuyere structure thereof is characterized in that described broken line shape secondary air duct (9) and overfiren air port (10) pour into a mould or build by laying bricks or stones in the kiln lining after direct forming or the prefabricated shaping in cast or when building kiln lining by laying bricks or stones.
17, according to claim 9 or 16 described inner liner of rotary kiln and second tuyere structures thereof, the cross sectional shape that it is characterized in that described broken line shape secondary road (9) and overfiren air port (10) is circle, square or rectangle, and the diameter or the length of side are of a size of 20～300mm.
18, inner liner of rotary kiln according to claim 16 and second tuyere structure thereof is characterized in that the described prefabricated broken line shape secondary air duct (9) and the material of overfiren air port (10) employing are the refractory material that is used for the carbon rotary kiln liner.
19, inner liner of rotary kiln according to claim 18 and second tuyere structure thereof is characterized in that the protrusion height scope of described overfiren air port (10) on the inner liner of rotary kiln surface is 1～200mm.
20, inner liner of rotary kiln according to claim 9 and second tuyere structure thereof is characterized in that overfiren air port (10) is concordant with the inner surface of inner liner of rotary kiln (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNU2008202202582U CN201314781Y (en) | 2008-12-03 | 2008-12-03 | Lining of rotary kiln and secondary air port structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008202202582U CN201314781Y (en) | 2008-12-03 | 2008-12-03 | Lining of rotary kiln and secondary air port structure thereof |
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| CN201314781Y true CN201314781Y (en) | 2009-09-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608864B (en) * | 2008-06-17 | 2011-02-02 | 沈阳铝镁设计研究院 | Carbon-calcining rotary kiln lining and second tuyere structure thereof |
| CN102012021A (en) * | 2010-11-24 | 2011-04-13 | 四川电力建设三公司 | Circulating fluidized bed boiler wall refractory concrete cast structure and casting method |
| CN104596237A (en) * | 2015-02-14 | 2015-05-06 | 安徽芜湖海螺建筑安装工程有限责任公司 | Masonry method for improving refractory liner of tertiary air duct of dry-process cement kiln |
| CN104702148A (en) * | 2013-12-09 | 2015-06-10 | 中冶长天国际工程有限责任公司 | Power supply unit and power supply system |
| CN108302932A (en) * | 2018-01-16 | 2018-07-20 | 中钢集团鞍山热能研究院有限公司 | A kind of horizontal air duct structure of carbon-calcining rotary kiln |
| CN111911747A (en) * | 2020-07-10 | 2020-11-10 | 中国兵器工业第五九研究所 | Seawater-soaking-resistant heat-insulation structure and preparation method thereof |
-
2008
- 2008-12-03 CN CNU2008202202582U patent/CN201314781Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608864B (en) * | 2008-06-17 | 2011-02-02 | 沈阳铝镁设计研究院 | Carbon-calcining rotary kiln lining and second tuyere structure thereof |
| CN102012021A (en) * | 2010-11-24 | 2011-04-13 | 四川电力建设三公司 | Circulating fluidized bed boiler wall refractory concrete cast structure and casting method |
| CN102012021B (en) * | 2010-11-24 | 2013-06-19 | 四川电力建设三公司 | Circulating fluidized bed boiler wall refractory concrete cast structure and casting method |
| CN104702148A (en) * | 2013-12-09 | 2015-06-10 | 中冶长天国际工程有限责任公司 | Power supply unit and power supply system |
| CN104596237A (en) * | 2015-02-14 | 2015-05-06 | 安徽芜湖海螺建筑安装工程有限责任公司 | Masonry method for improving refractory liner of tertiary air duct of dry-process cement kiln |
| CN108302932A (en) * | 2018-01-16 | 2018-07-20 | 中钢集团鞍山热能研究院有限公司 | A kind of horizontal air duct structure of carbon-calcining rotary kiln |
| CN111911747A (en) * | 2020-07-10 | 2020-11-10 | 中国兵器工业第五九研究所 | Seawater-soaking-resistant heat-insulation structure and preparation method thereof |
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