CN202329156U - Low-heat-conducting refractory brick for combined rotary kiln - Google Patents
Low-heat-conducting refractory brick for combined rotary kiln Download PDFInfo
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- CN202329156U CN202329156U CN2011204551611U CN201120455161U CN202329156U CN 202329156 U CN202329156 U CN 202329156U CN 2011204551611 U CN2011204551611 U CN 2011204551611U CN 201120455161 U CN201120455161 U CN 201120455161U CN 202329156 U CN202329156 U CN 202329156U
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Abstract
The utility model discloses a low-heat-conducting refractory brick for a combined rotary kiln. A brick body comprises a large surface, a cold surface, bottom surfaces and a hot surface, the cold surface is provided with a heat-insulating groove, the large surface is provided with a lot-drawing-resisting groove, one bottom surface is provided with a boss, the other bottom surface is provided with a locating groove, and the boss and the locating groove are matched. Through utilizing the technical scheme above of the low-heat-conducting refractory brick for the combined rotary kiln, disclosed by the utility model, the cold surface of the brick body is provided with the heat-insulating groove, the large surface is provided with the lot-drawing-resisting groove, the two bottom surfaces of the brick body are further respectively provided with the boss and the locating groove which can strengthen a combination force of brick rings, and the bricks are adhered by high-strength fire clay so as to form a structure with strong heat insulation performance and good stability, the service life of a kiln lining can be remarkably prolonged, and the heat-radiation loss of a kiln body is reduced.
Description
Technical field
The utility model relates to a kind of combined type rotary kiln with low heat conduction refractory brick.
Background technology
The aluminum silica refractory lining body of cement rotary kiln is that wedge type refractory brick ring is built the brick circle that forms.Rely on the chamotte bonding between fragment of brick and the fragment of brick, squeeze into steel plate locking again.But this structure has the shortcoming of the big and poor stability of radiation loss.
Behind the gravitate, the kiln body section of cement rotary kiln is deformed into the curved surface of a similar ellipse.Along with the rotation of kiln body, the refractory brick in the kiln lining will receive the effect of periodic pressure.On the other hand, kiln body and kiln lining occur becoming flexible because of thermal expansion coefficient difference.For example, the thermal coefficient of expansion of kiln body is 14 * 10-6/ ℃; The thermal coefficient of expansion of high-alumina brick is 7 * 10-6/ ℃.Like the kiln temperature is 350 ℃, the kiln of diameter 4.7M, and the gap of 31mm will appear in every circle brick and every circle kiln body in the tangential.Like this, along with the rotation of kiln, loosening laying bricks will receive the extruding of kiln body and damage, and monolithic refractory brick also comes off easily, is commonly called as " lot " and falls brick.Therefore, need a kind of new fire proof material brick shape structure of design, prevent that the cement rotary kiln kiln lining from " lot " taking place fall brick.
The utility model content
The utility model technical problem to be solved provides a kind of combined type rotary kiln with low heat conduction refractory brick, prevents that cement rotary kiln " lot " from falling brick, makes the cement rotary kiln kiln lining have certain thermal insulation and good mechanical stability simultaneously.
For solving the problems of the technologies described above; The utility model adopts following technical scheme: the combined type rotary kiln is with low heat conduction refractory brick, and the brick body comprises big face, huyashi-chuuka (cold chinese-style noodles), bottom surface, hot side, and said huyashi-chuuka (cold chinese-style noodles) is provided with heat insulation groove; Said big is provided with anti-lot groove; Wherein a bottom surface is provided with boss, and another bottom surface is provided with detent, and said boss and said detent are complementary.
As preferably, the height of said brick body is that 200 ± 20mm, length are 198mm.
As preferably, said heat insulation groove is parallel with said bottom surface, and the distance of the side of said heat insulation groove and two bottom surfaces is 50 ± 10mm.
As preferably, the degree of depth of said heat insulation groove is 20 ± 10mm.
As preferably, said anti-lot groove is a square groove, and the distance of the bottom surface of said anti-lot groove and said heat insulation groove is 20 ± 10mm.
As preferably, the height of said anti-lot groove is that 42 ± 10mm, length are 98 ± 20mm.
As preferably, the cross section of said boss is trapezoidal for the 34 ± 5mm that goes to the bottom, upper base 28 ± 5mm, high 10 ± 5mm's.
As preferably, the cross section of said detent is trapezoidal for the 40 ± 5mm that goes to the bottom, upper base 34 ± 5mm, high 12 ± 5mm's.
The utility model is owing to adopted technique scheme; The huyashi-chuuka (cold chinese-style noodles) of this brick has heat insulation groove, big face that anti-lot groove is arranged; Two bottom surfaces of brick also have boss and the detent that strengthens adhesion between the brick circle respectively; By high-strength chamotte bonding, thermal insulation is strong, the structure of good stability thereby can form between brick and the brick, can obviously improve the service life of kiln lining and reduce the radiation loss of kiln body.
Description of drawings
Fig. 1 is the structural representation of the utility model combined type rotary kiln with low heat conduction refractory brick
Fig. 2 is the cutaway view of A-A among Fig. 1
The specific embodiment
Further describe below in conjunction with the specific embodiment of accompanying drawing the utility model.
Illustrated in figures 1 and 2ly is the utility model rotary kiln with low heat conduction refractory brick, the brick body comprises big face 1, huyashi-chuuka (cold chinese-style noodles) 2, bottom surface 3, hot side 4, and said big be the plane (front of brick body among Fig. 1) of area maximum in the refractory brick; Said bottom surface is the two sides of brick body among Fig. 1, and said huyashi-chuuka (cold chinese-style noodles) is the lower plane (the top of brick body in the accompanying drawing) of refractory brick temperature in using, otherwise is hot side (bottom of brick body in the accompanying drawing).Said huyashi-chuuka (cold chinese-style noodles) 2 is provided with heat insulation groove 21, and said big 1 is provided with anti-lot groove 11, and wherein a bottom surface 3 is provided with boss 31, and another bottom surface 3 is provided with detent 32, and said boss 31 is complementary with said detent 32.The height of said brick body is that 200 ± 20mm, length are 198mm.Said heat insulation groove 21 is parallel with said bottom surface 3, and the distance of the side of said heat insulation groove 21 and two bottom surfaces 3 is 50 ± 10mm.The degree of depth of said heat insulation groove 21 is 20 ± 10mm.Said anti-lot groove 11 is a square groove, and said anti-lot groove 11 is 20 ± 10mm with the distance of the bottom surface of said heat insulation groove 21.The height of said anti-lot groove 11 is that 42 ± 10mm, length are 98 ± 20mm, is 3.5 ± 3mm deeply.The cross section of said boss 31 is trapezoidal for go to the bottom 34 ± 5mm, upper base 28 ± 5mm, high 10 ± 5mm's.The cross section of said detent 32 is trapezoidal for go to the bottom 40 ± 5mm, upper base 34 ± 5mm, high 12 ± 5mm's.
When building kiln, any material of not filling in recessed of huyashi-chuuka (cold chinese-style noodles).The big face of brick is bonded to one another with high-strength chamotte, and making interosculates between the fragment of brick becomes to have the firm masonry of certain globality, and thermal insulation is strong, the structure of good stability thereby can form, and can obviously improve the service life of kiln body and reduce the radiation loss of kiln body.
The advantage of the utility model is: when building kiln, any material of not filling on the one hand, has been simplified production in the groove of huyashi-chuuka (cold chinese-style noodles); On the other hand, the space of reservation can be play a part to strengthen heat insulation.
" shank " of refractory brick is that the width of the both sides boss of huyashi-chuuka (cold chinese-style noodles) groove is increased to 50 ± 10mm, significantly increased the support force of " shank ", prevented the kiln lining damage that fractures and cause because of " shank ".
The high-strength chamotte of filling in big of refractory brick and the anti-lot groove thereof, anti-lot groove work to strengthen the chamotte bonding, help preventing that refractory brick blocks from coming off is commonly called as " lot ".
Refractory brick two bottom surfaces have boss and detent respectively, between every circle brick through boss and detent sting mutually with, make kiln lining form a firm integral body, further help preventing " lot ".
Because above advantage, the utility model becomes a kind of low heat conduction refractory brick that is applied to cement rotary kiln, has to form that thermal insulation is strong, the characteristics of good stability structure the service life that can obviously reduce the radiation loss of kiln body and help improving kiln lining.
Claims (8)
1. the combined type rotary kiln is with low heat conduction refractory brick; The brick body comprises big face (1), huyashi-chuuka (cold chinese-style noodles) (2), bottom surface (3), hot side (4); It is characterized in that: said huyashi-chuuka (cold chinese-style noodles) (2) is provided with heat insulation groove (21), and said big (1) is provided with anti-lot groove (11), and wherein a bottom surface (3) are provided with boss (31); Another bottom surface (3) is provided with detent (32), and said boss (31) is complementary with said detent (32).
2. use low heat conduction refractory brick according to the said combined type rotary kiln of claim 1, it is characterized in that: the height of said brick body is that 200 ± 20mm, length are 198mm.
3. use low heat conduction refractory brick according to the said combined type rotary kiln of claim 2, it is characterized in that: said heat insulation groove (21) is parallel with said bottom surface (3), and the distance of the side of said heat insulation groove (21) and two bottom surfaces (3) is 50 ± 10mm.
4. use low heat conduction refractory brick according to the said combined type rotary kiln of claim 2, it is characterized in that: the degree of depth of said heat insulation groove (21) is 20 ± 10mm.
5. use low heat conduction refractory brick according to the said combined type rotary kiln of claim 2, it is characterized in that: said anti-lot groove (11) is a square groove, and said anti-lot groove (11) is 20 ± 10mm with the distance of the bottom surface of said heat insulation groove (21).
6. use low heat conduction refractory brick according to the said combined type rotary kiln of claim 2, it is characterized in that: the height of said anti-lot groove (11) is that 42 ± 10mm, length are 98 ± 20mm.
According to the said combined type rotary kiln of claim 1 with low heat conduction refractory brick, it is characterized in that: the cross section of said boss (31) is trapezoidal for the 34 ± 5mm that goes to the bottom, upper base 28 ± 5mm, high 10 ± 5mm's.
According to the said combined type rotary kiln of claim 1 with low heat conduction refractory brick, it is characterized in that: the cross section of said detent (32) is trapezoidal for the 40 ± 5mm that goes to the bottom, upper base 34 ± 5mm, high 12 ± 5mm's.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204551611U CN202329156U (en) | 2011-11-16 | 2011-11-16 | Low-heat-conducting refractory brick for combined rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204551611U CN202329156U (en) | 2011-11-16 | 2011-11-16 | Low-heat-conducting refractory brick for combined rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202329156U true CN202329156U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204551611U Expired - Lifetime CN202329156U (en) | 2011-11-16 | 2011-11-16 | Low-heat-conducting refractory brick for combined rotary kiln |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364281A (en) * | 2011-11-16 | 2012-02-29 | 范圣良 | Low-heat conduction refractory brick for combined type rotary kiln |
| CN104089479A (en) * | 2014-06-30 | 2014-10-08 | 浙江瑞泰耐火材料科技有限公司 | Zircon mullite brick |
-
2011
- 2011-11-16 CN CN2011204551611U patent/CN202329156U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364281A (en) * | 2011-11-16 | 2012-02-29 | 范圣良 | Low-heat conduction refractory brick for combined type rotary kiln |
| CN104089479A (en) * | 2014-06-30 | 2014-10-08 | 浙江瑞泰耐火材料科技有限公司 | Zircon mullite brick |
| CN104089479B (en) * | 2014-06-30 | 2015-12-16 | 浙江瑞泰耐火材料科技有限公司 | Zircon mullite brick |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |