CN203656439U - Composite material dense-thin separation wearproof elbow - Google Patents
Composite material dense-thin separation wearproof elbow Download PDFInfo
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- CN203656439U CN203656439U CN201320865550.0U CN201320865550U CN203656439U CN 203656439 U CN203656439 U CN 203656439U CN 201320865550 U CN201320865550 U CN 201320865550U CN 203656439 U CN203656439 U CN 203656439U
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- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 238000000926 separation method Methods 0.000 title abstract description 9
- 239000002241 glass-ceramic Substances 0.000 claims abstract description 107
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 239000003245 coal Substances 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 32
- 239000002817 coal dust Substances 0.000 claims description 21
- 230000011218 segmentation Effects 0.000 claims description 16
- 239000004575 stone Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 239000004927 clay Substances 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract 4
- 239000013081 microcrystal Substances 0.000 abstract 2
- 238000005192 partition Methods 0.000 abstract 2
- 239000000945 filler Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 229910001208 Crucible steel Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011224 oxide ceramic Substances 0.000 description 2
- 229910052574 oxide ceramic Inorganic materials 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
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Abstract
The utility model relates to a composite material dense-thin separation wearproof elbow. The composite material dense-thin separation wearproof elbow comprises an elbow body, an inlet end pipe joint and an outlet end pipe joint; the inlet and outlet end pipe joints are respectively connected to the inlet end and outlet end of the elbow body; the elbow body comprises an outer protection steel pipe, multiple glass-ceramic tubes and multiple partition plates; the multiple glass-ceramic tubes are sequentially spliced in the inner cavity of the outer protection steel pipe and are positioned by the outer protection steel pipe and the inlet and outlet end pipe joints to form an internal coal powder channel; fillers fill the gap between the outer protection steel pipe and the glass-ceramic tubes to form a transition buffer layer; the partition plates are embedded in the glass-ceramic tubes to divide the internal coal powder channel into a dense side coal powder channel and a thin side coal powder channel independent from each other; a microcrystal glass-ceramic plate is arranged at the dense side. The composite material dense-thin separation wearproof elbow is longer in service life as the structure with the outer protection steel pipe plus the glass-ceramic tubes is more wearproof; the microcrystal glass-ceramic plate arranged at the dense side also has higher wearproof performance and is not easily worn. In addition, the structure is formed by splicing multiple parts, and the cost is lower.
Description
Technical field
The utility model relates to combustion technology, relates in particular to a kind of composite rich-lean type wear-resistant bend.
Background technique
Deep or light separation elbow is mainly used in Researched of Air Staging Combustion Burning Pulverized Coal field, is especially applied to low NOx combustion field, all has superperformance at aspects such as low-load combustion-stabilizing, the discharges of reduction burning pollutant.At present, existing deep or light separation elbow mainly contains two classes, and a class is casting technique cast steel wear-resistant bend, and another kind of is that welding procedure outer surface Ordinary Steel internal surface is pasted abrasionproof alumina ceramic wear resistant elbow.
As shown in Figure 1, be the structural representation of existing a kind of casting technique cast steel wear-resistant bend.The cost of this wear-resistant bend is higher, life-span is shorter, and outer wall is usually designed to eccentric structure in order to increase the service life, middle deep or light separation dividing plate is in the middle of elbow, be easy to be worn, if and extend life-span of wear-resistant bend by improving the mode of wear-resisting property, can easily in manufacture process, there is again defects i.e.cracks.
As shown in Figure 2, be the structural representation of an existing wear-resistant aluminum oxide ceramics elbow.The life-span of this wear-resistant bend is long, but the means of fixation of ceramic plate pastes or to be fixed on one by one female pipe with screw upper for blocks of, if there is a slice occur cracked or come off, the life-span of elbow will sharply shorten.
Model utility content
The purpose of this utility model is to propose a kind of composite rich-lean type wear-resistant bend, can obtain longer working life, and cost is lower.
For achieving the above object, the utility model provides a kind of composite rich-lean type wear-resistant bend, comprise elbow body, entrance point pipe joint and outlet end pipe joint, described entrance point pipe joint is connected to the entrance point of described elbow body, described outlet end pipe joint is connected to the outlet end of described elbow body, wherein
Described elbow body comprises: external protective steel tube, multiple glass-ceramic tubre and multiple dividing plate, described multiple glass-ceramic tubre splices successively in the inner chamber of described external protective steel tube, and positioned by described external protective steel tube, entrance point pipe joint and outlet end pipe joint, form inner coal dust passage; Between described external protective steel tube and described glass-ceramic tubre, be filled with stuffing, form transition buffer layer; Described multiple dividing plate is embedded in described multiple glass-ceramic tubre, and the inside coal dust passage of described elbow body is divided into independently dense side coal dust passage and light side coal dust passage; Dense side at described multiple dividing plates is provided with cast stone plate.
Further, between described entrance point pipe joint and the entrance point of described elbow body, adopt the Connecting format that welding, flange are connected or union coupling connects, between described outlet end pipe joint and the outlet end of described elbow body, adopt the Connecting format that welding, flange are connected or union coupling connects.
Further, the thickness of described entrance point pipe joint is more than or equal to the thickness of the entrance point of described elbow body, and the thickness of described outlet end pipe joint is more than or equal to the thickness of the outlet end of described elbow body.
Further, described stuffing is blended cement sandy soil.
Further, described multiple glass-ceramic tubre is four glass-ceramic tubres, comprise a glass-ceramic tubre, No. two glass-ceramic tubres, No. three glass-ceramic tubres and No. four glass-ceramic tubres, correspond respectively to 15 °, 30 °, 30 ° and four segmentations of 15 ° from the entrance point of described elbow body to outlet end.
Further, described multiple dividing plate is three groups of dividing plates, comprise a dividing plate, No. two dividing plates and No. three dividing plates, described No. two dividing plates are embedded in the neutral position of described No. two glass-ceramic tubres and No. three glass-ceramic tubres, described No. three dividing plates are embedded in the neutral position of described No. four glass-ceramic tubres, a described dividing plate is embedded in a described glass-ceramic tubre, and with described No. two dividing plates in the segmentation of No. two glass-ceramic tubres in same plane, a described dividing plate and described No. two dividing plates are provided with the interval of linking up for bias pulverized coal between the segmentation of No. two glass-ceramic tubres.
Further, the length at a described dividing plate and the interval of described No. two dividing plates between the segmentation of No. two glass-ceramic tubres is 0.4～0.6 times of length of a described dividing plate.
Further, the length of a described dividing plate is 140mm～200mm, a described dividing plate is 0.15～0.25 times of the effective internal diameter of elbow in the projected length of the entrance point plane of described elbow body, and the angle of the entrance point plane of a described dividing plate and described elbow body is 45 °～60 °.
Further, described cast stone plate and described multiple dividing plate adopt clay to paste, and the windward side termination of cast stone plate adopts the nested clay that adds to paste.
Further, described multiple dividing plate includes outstanding ledge structure, on described multiple glass-ceramic tubres, be also provided with the breach coordinating with the ledge structure of described multiple dividing plates, the ledge structure of described multiple dividing plates is stuck on the breach of described multiple glass-ceramic tubres, and welds with described external protective steel tube.
Based on technique scheme, the utility model has adopted external protective steel tube, multiple glass-ceramic tubres and multiple dividing plates etc. form elbow body, and be filled with stuffing between external protective steel tube and glass-ceramic tubre, multiple glass-ceramic tubres here just form the inside coal dust passage of elbow body, there is wear-resisting effect, and stuffing forms excessive buffer layer, can be to forming good buffering shockproof function between glass-ceramic tubre and external protective steel tube, and can form glass-ceramic tubre fastening at the external protective steel tube of the outer installment of glass-ceramic tubre, the effect of sizing and protection, the dividing plate being arranged in glass-ceramic tubre can be divided into two independently coal dust passages by the inside coal dust passage of elbow body, can obtain better wear-resisting property by cast stone plate being set in dense side.This external protective steel tube adds the structure of glass-ceramic tubre because wear-resisting property is better, therefore working life long, and without being made into eccentric structure, the cast stone plate of the dense side setting of dividing plate also has good wear-resisting property, is not easy to be worn.In addition, this structure is assembled by multiple parts splicings, and cost is lower.
Brief description of the drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of existing a kind of casting technique cast steel wear-resistant bend.
Fig. 2 is the structural representation of an existing wear-resistant aluminum oxide ceramics elbow.
Fig. 3 is an embodiment's of the utility model composite rich-lean type wear-resistant bend knot
Structure schematic diagram.
Fig. 4 is the sectional view of Fig. 3 embodiment's A-A section.
Fig. 5-Fig. 8 is respectively the schematic cross-section of a glass-ceramic tubre, No. two glass-ceramic tubres, No. three glass-ceramic tubres and No. four glass-ceramic tubres in the utility model composite rich-lean type wear-resistant bend embodiment.
Fig. 9 is the enlarged diagram of circle part in Fig. 3 embodiment.
Figure 10 is the structural representation of the dividing plate in the utility model composite rich-lean type wear-resistant bend embodiment.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in Figure 3, be an embodiment's of the utility model composite rich-lean type wear-resistant bend structural representation.Fig. 4 is the sectional view of Fig. 3 embodiment's A-A section.In the present embodiment, composite rich-lean type wear-resistant bend comprises elbow body, entrance point pipe joint 7 and outlet end pipe joint 1, and entrance point pipe joint 7 is connected to the entrance point of elbow body, and outlet end pipe joint 1 is connected to the outlet end of elbow body.
Elbow body comprises external protective steel tube 2, multiple glass-ceramic tubre 3-6 and multiple dividing plate 8-10, multiple glass-ceramic tubre 3-6 splice successively in the inner chamber of external protective steel tube 2, and positioned by external protective steel tube 2, entrance point pipe joint 7 and outlet end pipe joint 1, form inner coal dust passage.
Between external protective steel tube 2 and glass-ceramic tubre 3-6, be filled with stuffing 12, form transition buffer layer.Multiple dividing plate 8-10 are embedded in multiple glass-ceramic tubre 3-6, and the inside coal dust passage of elbow body is divided into independently dense side coal dust passage and light side coal dust passage, are provided with cast stone plate 11 in the dense side of multiple dividing plate 8-10.
In the present embodiment; multiple glass-ceramic tubres have formed the inside coal dust passage of elbow body; there is wear-resisting effect; and stuffing forms excessive buffer layer; can be to forming good buffering shockproof function between glass-ceramic tubre and external protective steel tube; and can form to glass-ceramic tubre the effect of fastening, sizing and protection at the external protective steel tube of the outer installment of glass-ceramic tubre; the dividing plate being arranged in glass-ceramic tubre can be divided into two independently coal dust passages by the inside coal dust passage of elbow body, can obtain better wear-resisting property by cast stone plate being set in dense side.This external protective steel tube adds the structure of glass-ceramic tubre because wear-resisting property is better, therefore working life long, and without being made into eccentric structure, the cast stone plate of the dense side setting of dividing plate also has good wear-resisting property, is not easy to be worn.In addition, this structure is assembled by multiple parts splicings, and cost is lower.
In the time selecting the Connecting format of entrance point pipe joint 7 and outlet end pipe joint 1, need to consider actual requirement of engineering, what for example the entrance point pipe joint 7 in Fig. 3 was selected is the form that union coupling connects, this Connecting format inspection and maintenance is very convenient, but reliability is poor, to be welded to connect form and outlet end pipe joint 1 is selected, its reliability is higher, but inspection and maintenance is not too convenient, therefore project planner can select applicable pipe joint Placement according to actual requirement of engineering, the mode of entrance point pipe joint except selecting union coupling to connect, the Connecting format that can also select welding or flange to connect, and outlet end pipe joint is except selecting the Connecting format of welding, can also select the Connecting format that flange connects or union coupling connects.
Entrance point pipe joint and outlet end pipe joint are except playing connection function, can also play the position-limiting action to elbow body, accordingly, need on the thickness size of entrance point pipe joint, be designed to the size of the thickness of the entrance point that is more than or equal to described elbow body, and the thickness size of outlet end pipe joint is designed to the thickness size of the outlet end that is more than or equal to elbow body.
Mention above, multiple glass-ceramic tubre 3-6 splice successively in the inner chamber of external protective steel tube 2, and between external protective steel tube 2 and glass-ceramic tubre 3-6, are filled with stuffing 12, form transition buffer layer.The design of this transition buffer layer is mainly used in the buffering antihunt action of elbow body, stuffing 12 preferably adopts blended cement sand with low cost, and in order to realize good buffering antihunt action, be preferably between external protective steel tube 2 and glass-ceramic tubre 3-6 and form uniform gap, to obtain the transition buffer layer being evenly distributed.
The glass-ceramic tubre quantity that composite rich-lean type wear-resistant bend of the present utility model adopts depends primarily on flow field angularity and manufactures angle, consider from flow field angularity, segmentation is The more the better, and consider from manufacturing angle, segmentation is fewer, considers from these two conflicting angles, preferably adopts the structure of four sections of glass-ceramic tubres, can either meet like this relatively stable of flow field, elbow manufacture is also more simple.
As shown in Figure 5-Figure 8, be respectively in the utility model composite rich-lean type wear-resistant bend embodiment the schematic cross-section of glass-ceramic tubre 3, No. two glass-ceramic tubres 4, No. three glass-ceramic tubres 5 and No. four glass-ceramic tubres 6.These four sections of glass-ceramic tubres can be formed by the prestressing force glass-ceramic tubre cutting of finished product, and wherein glass-ceramic tubre 3, No. two glass-ceramic tubres 4, No. three glass-ceramic tubres 5 and No. four glass-ceramic tubres 6 correspond respectively to 15 °, 30 °, 30 ° and four segmentations of 15 ° from the outlet end of elbow body to entrance point.Accordingly, multiple segmentations of external protective steel tube 2 are also the form corresponding with each glass-ceramic tubre.
Between each glass-ceramic tubre, do not need to connect, only need splice successively along the inner chamber of external protective steel tube, the outside of glass-ceramic tubre is located by external protective steel tube, and the glass-ceramic tubre at two ends is positioned by the pipe joint at two ends, and tamps by stuffing between glass-ceramic tubre and external protective steel tube.
The quantity of multiple dividing plates of inlaying in glass-ceramic tubre can be determined by the segmentation situation of glass-ceramic tubre, for four sections of glass-ceramic tubres being divided into above, can adopt the structure of three groups of dividing plates, with reference to figure 3, three groups of dividing plates comprise dividing plate 8 No. one, No. two dividing plates 9 and No. three dividing plates 10, No. two dividing plate 9 is divided into three sections, be embedded in the neutral position of No. two glass-ceramic tubres 4 and No. three glass-ceramic tubres 5, No. three dividing plates 10 are embedded in the neutral position of a glass-ceramic tubre 3, No. one dividing plate 8 is embedded in No. four glass-ceramic tubres 6, and with No. two dividing plates 9 in the segmentation of No. three glass-ceramic tubres 5 in same plane, a dividing plate 8 and No. two dividing plates 9 are provided with the interval of linking up for bias pulverized coal between the segmentation of No. three glass-ceramic tubres 5.
The mode that these dividing plates and cast stone plate can adopt clay to paste, cast stone plate is the wearing layer of coal dust windward side, and the windward side termination of cast stone plate can adopt the nested structure that adds clay stickup shown in Fig. 9.Its central diaphragm can be chosen according to engineering experience at the inserted depth of cast stone plate, the degree of depth of such as 20mm etc.
Figure 10 shows the grown form of three groups of dividing plates, can see, on dividing plate, include outstanding ledge structure 17, and in Fig. 5-Fig. 8, can see that a glass-ceramic tubre 3 can arrange breach 13 near a side of No. two glass-ceramic tubres 4, both sides at No. two glass-ceramic tubres 4 can arrange breach 14, near a side of No. two glass-ceramic tubres 4, breach 14 can be set at No. three glass-ceramic tubres 5, near a side of entrance point pipe joint 7, breach 15 can be set at No. four glass-ceramic tubres 6, these breach all match with the ledge structure 17 of dividing plate, the ledge structure 17 of dividing plate is stuck on the breach of each glass-ceramic tubre when mounted, and weld with external protective steel tube 2.As can be seen from Figure 4, No. three dividing plate 10 welds at position 16 with external protective steel tube 1, to fix dividing plate position in glass-ceramic tubre, dividing plate has also played the effect of clamping glass-ceramic tubre simultaneously, avoids glass-ceramic tubre to relatively rotate in external protective steel tube.
In the embodiment shown in fig. 3, dividing plate 8 is important core parts that bias pulverized coal separates, the effect of its deep or light separation depend on the length L 1 of a dividing plate 8 in figure, dividing plate 8 at the projected length X of the entrance point plane of elbow body and dividing plate 8 the isoparametric value of angle [alpha] with the entrance point plane of elbow body.
Preferably the span of L1 is 140mm～200mm, and the span of X is that 0.15DN～0.25DN(DN is the effective internal diameter of elbow), the span of angle [alpha] is 45 °～60 °.If exceed this span, for example L1 and X value are less than normal, and α value is bigger than normal, can cause deep or light separating effect to weaken; On the contrary, if L1 and X value are bigger than normal, α value is less than normal, can cause elbow resistance too high, therefore selects suitable parameter value scope very important normally playing a role concerning guaranteeing composite rich-lean type wear-resistant bend.
A dividing plate 8 and No. two dividing plates 9 are provided with the interval of linking up for bias pulverized coal between the segmentation of No. three glass-ceramic tubres 5, the length at this interval is L2, Main Function is the outlet wind speed of adjusting deep or light both sides, the intrinsic medium of bend pipe is the two phase flow of gas and coal dust solid, medium, after a dividing plate 8 separates, has just produced pressure reduction in deep or light both sides.Because there is the existence of pressure reduction, so medium just can carry out balance through this interval, coal dust after separation is because quality is large, under the effect of inertial force, continue leading operation, gas is under the effect of pressure reduction, a part flows to low voltage side by high pressure side, thereby has ensured that the medium velocity of outlet side equates substantially.Wherein, in order to realize good counterbalance effect, the span of L2 is preferably 0.4～0.6 times of L1.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characteristics is equal to replacement embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (10)
1. a composite rich-lean type wear-resistant bend, comprise elbow body, entrance point pipe joint and outlet end pipe joint, described entrance point pipe joint is connected to the entrance point of described elbow body, and described outlet end pipe joint is connected to the outlet end of described elbow body, it is characterized in that:
Described elbow body comprises: external protective steel tube, multiple glass-ceramic tubre and multiple dividing plate, described multiple glass-ceramic tubre splices successively in the inner chamber of described external protective steel tube, and positioned by described external protective steel tube, entrance point pipe joint and outlet end pipe joint, form inner coal dust passage; Between described external protective steel tube and described glass-ceramic tubre, be filled with stuffing, form transition buffer layer; Described multiple dividing plate is embedded in described multiple glass-ceramic tubre, and the inside coal dust passage of described elbow body is divided into independently dense side coal dust passage and light side coal dust passage; Dense side at described multiple dividing plates is provided with cast stone plate.
2. composite rich-lean type wear-resistant bend according to claim 1, it is characterized in that, between described entrance point pipe joint and the entrance point of described elbow body, adopt the Connecting format that welding, flange are connected or union coupling connects, between described outlet end pipe joint and the outlet end of described elbow body, adopt the Connecting format that welding, flange are connected or union coupling connects.
3. composite rich-lean type wear-resistant bend according to claim 2, it is characterized in that, the thickness of described entrance point pipe joint is more than or equal to the thickness of the entrance point of described elbow body, and the thickness of described outlet end pipe joint is more than or equal to the thickness of the outlet end of described elbow body.
4. composite rich-lean type wear-resistant bend according to claim 1, is characterized in that, described stuffing is blended cement sandy soil.
5. composite rich-lean type wear-resistant bend according to claim 1, it is characterized in that, described multiple glass-ceramic tubre is four glass-ceramic tubres, comprise a glass-ceramic tubre, No. two glass-ceramic tubres, No. three glass-ceramic tubres and No. four glass-ceramic tubres, correspond respectively to 15 °, 30 °, 30 ° and four segmentations of 15 ° from the outlet end of described elbow body to entrance point.
6. composite rich-lean type wear-resistant bend according to claim 5, it is characterized in that, described multiple dividing plate is three groups of dividing plates, comprise dividing plate No. one, No. two dividing plates and No. three dividing plates, described No. two dividing plates are embedded in the neutral position of described No. two glass-ceramic tubres and No. three glass-ceramic tubres, described No. three dividing plates are embedded in the neutral position of a described glass-ceramic tubre, a described dividing plate is embedded in described No. four glass-ceramic tubres, and with described No. two dividing plates in the segmentation of No. three glass-ceramic tubres in same plane, a described dividing plate and described No. two dividing plates are provided with the interval of linking up for bias pulverized coal between the segmentation of No. three glass-ceramic tubres.
7. composite rich-lean type wear-resistant bend according to claim 6, is characterized in that, the length at a described dividing plate and the interval of described No. two dividing plates between the segmentation of No. three glass-ceramic tubres is 0.4～0.6 times of length of a described dividing plate.
8. according to the composite rich-lean type wear-resistant bend described in claim 6 or 7, it is characterized in that, the length of a described dividing plate is 140mm～200mm, a described dividing plate is 0.15～0.25 times of the effective internal diameter of elbow in the projected length of the entrance point plane of described elbow body, and the angle of the entrance point plane of a described dividing plate and described elbow body is 45 °～60 °.
9. composite rich-lean type wear-resistant bend according to claim 1, is characterized in that, described cast stone plate and described multiple dividing plate adopt clay to paste, and the windward side termination of cast stone plate adopts the nested clay that adds to paste.
10. composite rich-lean type wear-resistant bend according to claim 1, it is characterized in that, described multiple dividing plate includes outstanding ledge structure, on described multiple glass-ceramic tubres, be also provided with the breach coordinating with the ledge structure of described multiple dividing plates, the ledge structure of described multiple dividing plates is stuck on the breach of described multiple glass-ceramic tubres, and welds with described external protective steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865550.0U CN203656439U (en) | 2013-12-26 | 2013-12-26 | Composite material dense-thin separation wearproof elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865550.0U CN203656439U (en) | 2013-12-26 | 2013-12-26 | Composite material dense-thin separation wearproof elbow |
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| Publication Number | Publication Date |
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| CN203656439U true CN203656439U (en) | 2014-06-18 |
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|---|---|---|---|
| CN201320865550.0U Withdrawn - After Issue CN203656439U (en) | 2013-12-26 | 2013-12-26 | Composite material dense-thin separation wearproof elbow |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747848A (en) * | 2013-12-26 | 2015-07-01 | 烟台龙源电力技术股份有限公司 | Dense dilute separation wear-resistant elbow made of composite material |
| CN111396671A (en) * | 2020-04-14 | 2020-07-10 | 北京清远顺合环保科技有限公司 | Wear-resistant elbow component of pulverized coal pipeline and pulverized coal flow field optimization method |
-
2013
- 2013-12-26 CN CN201320865550.0U patent/CN203656439U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747848A (en) * | 2013-12-26 | 2015-07-01 | 烟台龙源电力技术股份有限公司 | Dense dilute separation wear-resistant elbow made of composite material |
| CN111396671A (en) * | 2020-04-14 | 2020-07-10 | 北京清远顺合环保科技有限公司 | Wear-resistant elbow component of pulverized coal pipeline and pulverized coal flow field optimization method |
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