CN201251367Y - High-temperature and abrasion resistant inner tube of preheater in cement drying production line - Google Patents
High-temperature and abrasion resistant inner tube of preheater in cement drying production line Download PDFInfo
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- CN201251367Y CN201251367Y CNU200820099702XU CN200820099702U CN201251367Y CN 201251367 Y CN201251367 Y CN 201251367Y CN U200820099702X U CNU200820099702X U CN U200820099702XU CN 200820099702 U CN200820099702 U CN 200820099702U CN 201251367 Y CN201251367 Y CN 201251367Y
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- connecting plate
- lacing film
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- preheater
- top connecting
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Abstract
The utility model relates to a high-temperature and abrasion resistant inner tube of preheater in cement drying production line, comprising a framework of the inner tube and coupons, which is characterized in that the framework of the inner tube is cylindrical shape and surrounded by a plurality of refractory steel top connecting plates, middle connecting plates and bottom strengthening tendon-plates, upper ends of the top connecting plates are fixed with the upper portion of the preheater, lower end of each top connecting plate is fixedly connected with a plurality of middle connecting plates which are connected in series, the lower end of the middle connecting plate in the rear is fixedly connected with the bottom strengthening tendon-plates, the coupons are composed of a plurality of high-temperature and abrasion resistant porcelain inside coupons and outside coupons which are respectively hung inside and outside the framework of the inner tube, the top connecting plates, the middle connecting plates and the bottom strengthening tendon-plates are enlaced with fireproof fibers and the inner space between the inside coupons and the outside coupons is filled with fireproof fibers. The high-temperature and abrasion resistant inner tube has the advantages of high-temperature resistance, oxygenation resistance, corrosion resistance, abrasion resistance, good integral performance, low cost, and long service life.
Description
Technical field
The utility model relates to a kind of device of dry process production line in a kind of cement manufacturing, the high-temperature wearable inner core of preheater in particularly a kind of cement dry method production line.
Background technology
After traditional dry-process rotory kiln, install suspended preheater, it is the developing great technological innovation of modern cement industry, make the material preheating and the part carbonate decomposition process of originally in rotary kiln, carrying out, transfer in the suspended preheater and carry out with suspended state with stacking states.Because the raw material powder that is suspended state can fully mix with the thermal current of discharging in kiln, gas, solid two-phase contact area are big, and heat transfer rate is fast, thermal efficiency height, and the production capacity that therefore helps kiln improves and grog burns till the hear rate reduction.And realize the key of this function, and then be the reasonable coupling of whirlwind tube and inner core and the working condition of inner core, especially the inner core working conditions change will directly influence gas solid separation efficient, heat exchanger effectiveness and product quality.
Therefore, inner core is the critical component of preheater, its physical dimension all has a significant impact the fluid resistance and the separative efficiency of whirlwind tube, its scaling loss distortion can make band material air-flow produce disorderly air-flow in the inner core lower surface, the air-flow short circuit that causes the secondary fly-up of dust easily or take place to enter the mouth reduces the separative efficiency of material, and hear rate increases, even cause preheater windspout barrel to stop up, cause stopping production.
Initial preheater inner barrel is that to adopt heat resisting steel to be made into all-in-one-piece, because the material inequality, expanding does not add consideration, serviceability temperature each side factor such as transfinite, and the inner core that many producers use all has distortion, damage, cracking phenomena in various degree.Cause resolution ratio to reduce, heat loss increases, and output seriously descends.In order to address the above problem, cement producer generally adopts the heat resisting steel lacing film at present, and every lacing film upper design has hook, bottom design groove, and interlocking in twos forms a complete preheater inner barrel.In order to improve the reliability that inner core uses as far as possible, lacing film must be selected for use and contain chromium nickel heat-resisting alloy steel, to guarantee its high-temperature mechanical property such as tensile strength and creep-resistant property etc.
Along with the continuous expansion of cement dry method wire gauge mould, the improving constantly of technological requirement, the heat resisting steel lacing film of traditional preheater inner barrel can not adapt to the requirement of higher operating mode gradually, has following deficiency:
1, preheater C4, C5 inner core generally will adopt the heat resisting steel that contains chromium 25% nickeliferous 20%, and price is very expensive, and the existing market price surpasses 90,000 yuan/ton, and because scarcity of resources is the trend that goes up year by year;
2, the operating temperature of C4, C5 inner core is very high, and particularly under the bigger situation of fluctuation of operating conditions, transient temperature may be up to 1350 ℃, and it is very unfavorable that this long-term stability to heat resisting steel is used;
Even 3 high-quality heat resisting steel, under the washing away of high temperature dust wind sand, it is very serious to wear and tear in preheater, and service life is very limited;
4, preheater inside has been full of high-temperature alkaline gas, can produce strong corrosiveness to heat resisting steel;
5, heat resisting steel very easily oxidized corrosion in high-temperature oxidation environment, thus aggravate reduction of service life.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, the high-temperature wearable inner core of preheater in a kind of cement dry method production line is provided, and this inner core is high temperature resistant, and is anti-oxidant under the high temperature, anticorrosive, wear-resistant, overall performance is good and cost is low, can prolong its service life.
For realizing that the purpose of this utility model has adopted following technical scheme.The high-temperature wearable inner core of preheater in a kind of cement dry method production line, include inner core skeleton and lacing film, it is characterized in that aforementioned inner core skeleton is the top connecting plate by a plurality of heat-resisting steels, the cylindrical shape that gusset is connected and surrounds is strengthened in middle connecting plate and bottom, the upper end of top connecting plate and preheater upper base are connected, the lower end of each top connecting plate is fixed with a plurality of middle connecting plates that bunchiness connects, the middle connecting plate lower end of its tail end and bottom are strengthened gusset and are connected, aforementioned lacing film is made of the inboard lacing film and the outside lacing film of multi-disc high temperature wear resistant ceramic, inboard lacing film and outside lacing film be mounted on the inner core skeleton in, the outside, the top connecting plate, middle connecting plate and bottom are strengthened being wound with refractory fibre on the gusset, also are filled with refractory fibre between inboard lacing film and the outside lacing film.
The high-temperature wearable inner core of preheater in the cement dry method production line that provides by the utility model, because the inner core skeleton is to strengthen the cylindrical shape that gusset is connected and surrounds by the top connecting plate of a plurality of heat-resisting steels, middle connecting plate and bottom, inside and outside two sides at them are mounted with the high temperature wear resistant ceramic lacing film, thereby effectively protect the inner core skeleton to avoid washing away of high temperature dust air-flow, improved its service life greatly; Because top connecting plate and middle connecting plate are twined by refractory fibre, and also be filled with refractory fiber cotton between the high temperature wear resistant ceramic lacing film that the outside articulates in them, the heat resisting steel skeleton is in the approximate airtight space, make the top connecting plate, the middle connecting plate that constitute skeleton greatly reduce touch opportunity with high temperature gas flow like this, thus reduced that the raw material powder discharges under the impact of high temperature gas flow contain oxygen, chloride, the high-temp waste gas of reading sulphur oxide etch degree to it; Because the high temperature wear resistant ceramic lacing film adopts the structural ceramics raw material of high rigidity as aggregate and powder, select for use activate micro powder as bond, suitably add partly nanoscale SILICA FUME, moulding by casting also forms through high-temperature firing, and the wearability under its temperature tolerance, the high temperature is that any heat resisting steel lacing film is all incomparable.The normal serviceability temperature of high temperature wear resistant ceramic lacing film can reach more than 1400 ℃, there are not softening, no creep, and anti-oxidant under the high temperature, anticorrosive, wear-resistant, compared to traditional heat resisting steel lacing film, can increase 2-3 its service life doubly, compare from expense,, 3200 tons of dry method lines, only the C5 inner core once the expense of cover heat resisting steel lacing film about 600,000 yuan, and as employing the utility model, in 450,000 yuan, one-time investment economizes on the use of funds about 1/4 than traditional approach to whole expense (not containing installation fee) greatly.So the utility model is high temperature resistant, at high temperature anti-oxidant, anticorrosive, wear-resistant, overall performance is good, and has reduced cost, can increase the service life greatly.
Description of drawings
The utility model has following accompanying drawing:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of top connecting plate;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of middle connecting plate;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is that the C of Fig. 5 is to view;
Fig. 8 is that the A of Fig. 5 is to partial view;
Fig. 9 is that the B of Fig. 5 is to partial view;
Figure 10 is the schematic diagram of inboard lacing film;
Figure 11 is the D-D view of Figure 10;
Figure 12 is the right view of Figure 10;
Figure 13 is the schematic diagram of outside lacing film;
Figure 14 is the E-E view of Figure 13;
Figure 15 is the right view of Figure 13;
Figure 16 is the schematic diagram of gusset.
The specific embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.As Fig. 1, shown in Figure 2, the high-temperature wearable inner core of preheater in a kind of cement dry method production line, include inner core skeleton 10 and lacing film 20, aforementioned inner core skeleton 10 is the top connecting plate 1 by a plurality of heat-resisting steels, the cylindrical shape that gusset 30 is connected and surrounds is strengthened in middle connecting plate 2 and bottom, the upper end of top connecting plate 1 and preheater upper base are connected, the lower end of each top connecting plate is fixed with a plurality of middle connecting plates 2 that bunchiness connects, middle connecting plate 2 lower ends of its tail end and bottom are strengthened gusset 30 and are connected, aforementioned lacing film 20 is made of the inboard lacing film 4 and the outside lacing film 5 of multi-disc high temperature wear resistant ceramic, inboard lacing film 4 and outside lacing film 5 be mounted on inner core skeleton 10 in, the outside, top connecting plate 1, middle connecting plate 2 and bottom are strengthened being wound with refractory fibre on the gusset 30, also are filled with refractory fibre between inboard lacing film 4 and the outside lacing film 5.
In Fig. 3, embodiment shown in Figure 4, aforesaid top connecting plate 1 has the heat-resisting steel sheet and plate of radian for Y-bandage, its both sides, upper end are provided with bolt connect apertures 1.1, top connecting plate 1 is connected by this connecting hole and preheater upper base, the both sides, middle part of top connecting plate 1 are provided with and hang arm 1.3, the interior outside that hangs arm is arranged with respectively the oblique hangers 1.4 that articulates with inboard lacing film 4 and outside lacing film 5, the lower end of top connecting plate 1 have be connected with middle connecting plate 2 in buckle 1.2.
In the scheme of Fig. 5-shown in Figure 9, aforesaid middle connecting plate 2 is and the consistent heat-resisting steel sheet and plate of top connecting plate 1 radian, outside being provided with, its upper end buckles 2.1, should outer buckle in order to top connecting plate 1 be connected or middle connecting plate 2 between serial connection, middle connecting plate 2 bottoms are provided with in order to buckle 2.3 in the mutual serial connection, both sides, middle connecting plate 2 middle part are provided with and hang arm 2.4, and the interior outside that hangs arm is provided with respectively the hangers 2.2 that articulates with inboard lacing film 4 and outside lacing film 5.
As Figure 10-shown in Figure 15, aforesaid inboard lacing film 4 is the block high temperature wear resistant ceramic lacing film consistent with aforementioned top connecting plate 1 radian with outside lacing film 5, the corresponding position of the hangers 1.4,2.2 on described medial and lateral lacing film 4,5 middle parts and aforementioned top connecting plate 1 and middle connecting plate 2 is provided with oblique hanging hole 4.1,5.1, this hanging hole articulates in order to the hangers 1.4,2.2 with top connecting plate 1 and middle connecting plate 2 respectively, and the upper and lower end of aforementioned medial and lateral lacing film 4,5 is respectively equipped with seam 4.2,5.2.Also be provided with refractory mortar in the natural slit of the junction that aforesaid inboard lacing film 4 and outside lacing film are 5.Traditional heat resisting steel lacing film is formed by the heat resisting steel monoblock cast, rely on hangers all linked with one another between every, find in the production practices, lacing film more than 80% damages and is all begun by the hangers place, this is because of being rigid the connection between lacing film and the lacing film, and thermal stress is difficult to discharge, and this point of attachment steel plate is the thinnest, crackle very easily occurs under high-temperature oxydation, corrosion and wind sand wash away, Gu Guaerchu becomes the weakest link.The high-temperature wearable inner core that the utility model provides is owing to be provided with special-purpose hook on the heat resisting steel middle connecting plate, the upper and lower side of medial and lateral pottery lacing film is provided with seam again, is filled with high temperature fiber in the space that interior outside lacing film forms.After the pottery lacing film hangs up, lacing film not only combines compact but also keep suitable expansion clearance with hook and lacing film with lacing film each other, no matter be that heat expansion or shrinkage can not produce the obvious stress concentration phenomenon, wash away problem thereby effectively solve stress release, oxide etch and wind sand.
The bottom is strengthened gusset 30 and is surrounded circle by a plurality of gusset 3 serial connections, each gusset 3 as shown in figure 16, the radian consistent with aforementioned top connecting plate 1 arranged, and middle connecting plate 2 lower ends of the tail end of the middle connecting plate that is connected in series with each by its reinforcement gusset 30 of forming are connected.
Claims (5)
1, the high-temperature wearable inner core of preheater in a kind of cement dry method production line, include inner core skeleton (10) and lacing film (20), it is characterized in that aforementioned inner core skeleton (10) is the top connecting plate (1) by a plurality of heat-resisting steels, the cylindrical shape that gusset (30) is connected and surrounds is strengthened in middle connecting plate (2) and bottom, the upper end and the preheater upper base of top connecting plate (1) are connected, the lower end of each top connecting plate is fixed with a plurality of middle connecting plates (2) that bunchiness connects, the middle connecting plate of its tail end (2) lower end and bottom are strengthened gusset (30) and are connected, aforementioned lacing film (20) is made of the inboard lacing film (4) and the outside lacing film (5) of multi-disc high temperature wear resistant ceramic, inboard lacing film (4) and outside lacing film (5) be mounted on inner core skeleton (10) in, the outside, top connecting plate (1), middle connecting plate (2) and bottom are strengthened being wound with refractory fibre on the gusset (30), also are filled with refractory fibre between inboard lacing film (4) and the outside lacing film (5).
2, high-temperature wearable inner core by preheater in the described cement dry method production line of claim 1, it is characterized in that aforesaid top connecting plate (1) has the heat-resisting steel sheet and plate of radian for Y-bandage, its both sides, upper end are provided with bolt connect apertures (1.1), top connecting plate (1) is connected by this connecting hole and preheater upper base, the both sides, middle part of top connecting plate (1) are provided with and hang arm (1.3), the interior outside that hangs arm is arranged with respectively the oblique hangers (1.4) that articulates with inboard lacing film (4) and outside lacing film (5), the lower end of top connecting plate (1) have be connected with middle connecting plate (2) in buckle (1.2).
3, high-temperature wearable inner core by preheater in the described cement dry method production line of claim 1, it is characterized in that aforesaid middle connecting plate (2) is and the consistent heat-resisting steel sheet and plate of top connecting plate (1) radian, its upper end is provided with outer buckle (2.1), should outer buckle in order to top connecting plate (1) be connected or middle connecting plate (2) between serial connection, middle connecting plate (2) bottom is provided with in order to buckle (2.3) in the mutual serial connection, both sides, middle connecting plate (2) middle part are provided with and hang arm (2.4), and the interior outside that hangs arm is arranged with respectively the oblique hangers (2.2) that articulates with inboard lacing film (4) and outside lacing film (5).
4, high-temperature wearable inner core by preheater in the described cement dry method production line of claim 1, it is characterized in that aforesaid inboard lacing film (4) and outside lacing film (5) are the block high temperature wear resistant ceramic lacing film consistent with aforementioned top connecting plate (1) radian, in described, outside lacing film (4,5) hangers (1.4 on middle part and aforementioned top connecting plate (1) and the middle connecting plate (2), 2.2) corresponding position be provided with oblique hanging hole (4.1,5.1), this hanging hole respectively in order to the hangers (1.4 of top connecting plate (1) and middle connecting plate (2), 2.2) articulate, aforementioned in, outside lacing film (4,5) on, the lower end is respectively equipped with seam (4.2,5.2).
5,, it is characterized in that also being provided with refractory mortar in the natural slit of the junction between aforesaid inboard lacing film (4) and outside lacing film (5) by the high-temperature wearable inner core of preheater in claim 1 or the 4 described cement dry method production lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820099702XU CN201251367Y (en) | 2008-08-13 | 2008-08-13 | High-temperature and abrasion resistant inner tube of preheater in cement drying production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820099702XU CN201251367Y (en) | 2008-08-13 | 2008-08-13 | High-temperature and abrasion resistant inner tube of preheater in cement drying production line |
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| Publication Number | Publication Date |
|---|---|
| CN201251367Y true CN201251367Y (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820099702XU Expired - Lifetime CN201251367Y (en) | 2008-08-13 | 2008-08-13 | High-temperature and abrasion resistant inner tube of preheater in cement drying production line |
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| CN (1) | CN201251367Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183151A (en) * | 2011-03-15 | 2011-09-14 | 江苏华信达特钢科技有限公司 | Internal cylinder for pre-heater cyclone, preparation method and special ceramic hanging pieces thereof |
| CN102278891A (en) * | 2011-08-18 | 2011-12-14 | 江苏华信达特钢科技有限公司 | Preheater cyclone internal cylinder with steel strips made of super-strong heat resistant steel |
| CN102288040A (en) * | 2011-07-29 | 2011-12-21 | 兴化市华伦达铸钢有限公司 | Ceramic inner barrel hanging sheet |
| CN103424000A (en) * | 2013-08-20 | 2013-12-04 | 中材建设有限公司 | Ceramic inner cylinder of preheater |
| CN109539801A (en) * | 2018-11-21 | 2019-03-29 | 马鞍山迪斯福工业设计有限公司 | A kind of cement kiln preheater suspension device special |
| CN109945660A (en) * | 2019-03-22 | 2019-06-28 | 西安建筑科技大学 | A kind of cement preheater combined type inner cylinder |
-
2008
- 2008-08-13 CN CNU200820099702XU patent/CN201251367Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183151A (en) * | 2011-03-15 | 2011-09-14 | 江苏华信达特钢科技有限公司 | Internal cylinder for pre-heater cyclone, preparation method and special ceramic hanging pieces thereof |
| CN102288040A (en) * | 2011-07-29 | 2011-12-21 | 兴化市华伦达铸钢有限公司 | Ceramic inner barrel hanging sheet |
| CN102278891A (en) * | 2011-08-18 | 2011-12-14 | 江苏华信达特钢科技有限公司 | Preheater cyclone internal cylinder with steel strips made of super-strong heat resistant steel |
| CN102278891B (en) * | 2011-08-18 | 2012-12-19 | 江苏华信达特钢科技有限公司 | Preheater cyclone internal cylinder with steel strips made of super-strong heat resistant steel |
| WO2013023581A1 (en) * | 2011-08-18 | 2013-02-21 | 江苏华信达特钢科技有限公司 | Preheater cyclone inner tube having ultrastrong-type heat-resistant steel-belt |
| CN103424000A (en) * | 2013-08-20 | 2013-12-04 | 中材建设有限公司 | Ceramic inner cylinder of preheater |
| CN103424000B (en) * | 2013-08-20 | 2015-12-09 | 中材建设有限公司 | A kind of ceramic inner barrel of preheater |
| CN109539801A (en) * | 2018-11-21 | 2019-03-29 | 马鞍山迪斯福工业设计有限公司 | A kind of cement kiln preheater suspension device special |
| CN109945660A (en) * | 2019-03-22 | 2019-06-28 | 西安建筑科技大学 | A kind of cement preheater combined type inner cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING LUOMAN WEAR-RESISTANCE MATERIALS CO, LTD Free format text: FORMER OWNER: CHONGQING LUOMAN SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20130514 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130514 Address after: 401320 Chongqing city Banan District Yudong Longhai Road No. 5 dragon collar international 3 19-10 Patentee after: Chongqing Luoman Wear-Resistant Materials Co., Ltd. Address before: 401320 Chongqing city Banan District Yudong County Road No. 57 5-16 Patentee before: Chongqing Luoman Science & Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING LUOMAN WEAR-RESISTANT MATERIALS CO., LTD Free format text: FORMER NAME: CHONGQING LUOMAN WEAR-RESISTANCE MATERIALS CO, LTD. |
|
| CP03 | Change of name, title or address |
Address after: 401320 Chongqing city Banan District Yudong Road No. 102 Building 2 2-15 Baxian Patentee after: CHONGQING LUOMAN WEAR-RESISTANT MATERIALS CO., LTD. Address before: 401320 Chongqing city Banan District Yudong Longhai Road No. 5 dragon collar international 3 19-10 Patentee before: Chongqing Luoman Wear-Resistant Materials Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20090603 |
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| CX01 | Expiry of patent term |