CN201547764U - Circulating fluidized bed boiler coal falling pipe - Google Patents
Circulating fluidized bed boiler coal falling pipe Download PDFInfo
- Publication number
- CN201547764U CN201547764U CN2009203129080U CN200920312908U CN201547764U CN 201547764 U CN201547764 U CN 201547764U CN 2009203129080 U CN2009203129080 U CN 2009203129080U CN 200920312908 U CN200920312908 U CN 200920312908U CN 201547764 U CN201547764 U CN 201547764U
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- CN
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- Prior art keywords
- pipe
- coal falling
- coal
- reduce
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003245 coal Substances 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000007704 transition Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a circulating fluidized bed boiler coal falling pipe, which comprises a coal falling pipe (1); the coal falling mouth (2) of the coal falling pipe (1) is connected with a water cooling wall pipe (3); the coal falling pipe (1) has a square shaped section; and a heat resistant steel plate (3) is welded on the bottom board of the coal falling mouth (2) of the coal falling pipe (1). In the utility model, the circular coal falling mouth of the coal falling pipe is changed into square shape, and a heat resistant steel plate is added on the bottom of the coal falling mouth; thereby the whole coal falling pipe is leveler, thus the pipe of the utility model can reduce shake, reduce the wearing speed of the abrasion proof material on the water cooling wall pipe, reduce the leakage of the boiler water cooling wall pipe, and prolong the boiler operation cycle. and the application of square pipe can cause the pipe manufacturing easier, and reduce the maintenance difficulty and replacing work load.
Description
Technical field
The utility model relates to a kind of CFBB coal spout, belongs to the CFBB technical field.
Background technology
The coal dropping port of existing CFBB coal spout is welded on the water screen tube, and CFBB is square gradient tube to circular transition by the coal spout at water screen tube place, there are following two defectives in this coal spout employing side in actual use to the transient mode of circle: one, the coal charge operation of adopting transition conduit to cause to fall and break is not steady, the pipe fitting shake is comparatively serious, the wear-resistant material that covers on the water screen tube is come off easily, after wear-resistant material comes off, the water screen tube that contacts with coal dropping port is leaked by the wearing and tearing of the mixture of coal and coal spread wind easily, influences the normal use of CFBB.Two, square gradient tube construction, manufacture difficulty to circular transition is bigger, makes comparatively time-consuming.
The utility model content
The technical problems to be solved in the utility model is: provide a kind of easy to make, can slow down wear-resistant material come off the time, improve the CFBB coal spout of CFBB working time, can overcome the deficiencies in the prior art.
The technical solution of the utility model: it comprises coal spout, and the coal dropping port of coal spout is connected with water screen tube, and the cross sectional shape of coal spout is a rectangular tube.
On the base plate of the coal dropping port of coal spout, be welded with heat-resisting steel sheet and plate.
The mouth of pipe of coal spout is of a size of 350 * 350mm.
Compared with the prior art; the utility model is by changing into the blanking port of coal spout square from circle; add a heat-resisting steel sheet and plate again in the bottom of coal dropping port; like this because coal spout integral body is comparatively smooth; can reduce the shake of coal spout; it is slower that the wear-resistant material of protecting water screen tube is come off, and reduced the leakage of boiler water-wall tube, prolonged the boiler operatiopn cycle.The whole rectangular tube that uses of body can make the making of pipe fitting be more prone to, and has reduced the maintenance difficulty and has changed workload.
Figure of description
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Embodiment: as shown in Figure 1, the coal dropping port 2 of coal spout 1 is welded on the water screen tube 3, coal spread wind pipe 5 is welded on the coal spout 3, built wear-resistant material 6 on water screen tube 3, coal spout 1 is made as the mouth of pipe is of a size of 350 * 350mm square tube, and on the base plate at coal dropping port 2 places, be welded with a heat-resisting steel sheet and plate 4.
Claims (3)
1. CFBB coal spout, it comprises coal spout (1), the coal dropping port (2) of coal spout (1) is connected with water screen tube (3), it is characterized in that: the cross sectional shape of coal spout (1) is a rectangular tube.
2. CFBB coal spout according to claim 1 is characterized in that: be welded with heat-resisting steel sheet and plate (4) on the base plate of the coal dropping port (2) of coal spout (1).
3. CFBB coal spout according to claim 1 is characterized in that: the mouth of pipe of coal spout (1) is of a size of 350 * 350mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203129080U CN201547764U (en) | 2009-10-21 | 2009-10-21 | Circulating fluidized bed boiler coal falling pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203129080U CN201547764U (en) | 2009-10-21 | 2009-10-21 | Circulating fluidized bed boiler coal falling pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547764U true CN201547764U (en) | 2010-08-11 |
Family
ID=42602939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203129080U Expired - Lifetime CN201547764U (en) | 2009-10-21 | 2009-10-21 | Circulating fluidized bed boiler coal falling pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547764U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003703A (en) * | 2010-12-29 | 2011-04-06 | 兖矿鲁南化肥厂 | Improved coal sliding tube anti-blocking structure |
| CN103453524A (en) * | 2013-09-05 | 2013-12-18 | 无锡华光锅炉股份有限公司 | Rectangular coal feeding pipe for circulating fluidized bed boiler |
| CN104728833A (en) * | 2015-03-19 | 2015-06-24 | 七台河宝泰隆煤化工股份有限公司 | Special-shaped coal drop pipe for wear-resisting boiler |
-
2009
- 2009-10-21 CN CN2009203129080U patent/CN201547764U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003703A (en) * | 2010-12-29 | 2011-04-06 | 兖矿鲁南化肥厂 | Improved coal sliding tube anti-blocking structure |
| CN103453524A (en) * | 2013-09-05 | 2013-12-18 | 无锡华光锅炉股份有限公司 | Rectangular coal feeding pipe for circulating fluidized bed boiler |
| CN103453524B (en) * | 2013-09-05 | 2016-04-06 | 无锡华光锅炉股份有限公司 | A kind of rectangle coal-feeding tube for CFBB |
| CN104728833A (en) * | 2015-03-19 | 2015-06-24 | 七台河宝泰隆煤化工股份有限公司 | Special-shaped coal drop pipe for wear-resisting boiler |
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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: 20100811 |
|
| CX01 | Expiry of patent term |