CN206398707U - A kind of band loosens the feeding back device of wind backward - Google Patents
A kind of band loosens the feeding back device of wind backward Download PDFInfo
- Publication number
- CN206398707U CN206398707U CN201621441777.2U CN201621441777U CN206398707U CN 206398707 U CN206398707 U CN 206398707U CN 201621441777 U CN201621441777 U CN 201621441777U CN 206398707 U CN206398707 U CN 206398707U
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- China
- Prior art keywords
- wind
- feeding warehouse
- guide duct
- back device
- feeding
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Abstract
The utility model provides the feeding back device that a kind of band loosens wind backward, belongs to CFBB recycle stock send-back system technical field.The feeding back device includes feeding warehouse, returning charge storehouse, partition wall, returning charge wind apparatus and refeed line, the partition wall is located in the middle of feeding warehouse and returning charge storehouse, the returning charge wind apparatus, which is located at, returns bin bottom, the feed pipe is connected with feeding warehouse to be communicated, and the feeding back device also includes positioned at feeding warehouse rear wall bottom or is distributed in feeding warehouse rear wall and the anti-c-type loosening wind apparatus of left and right sidewall bottom.The utility model loosens to be blown in front of the loosening wind direction of wind apparatus formation along Flow of Goods and Materials direction, the initial flow power certain to material, beneficial to the flowing of recycle stock；Anti- c-type loosens wind apparatus and arranges that the material of surrounding and bottom can be fluidized preferably along feeding warehouse left and right sides wall and rear wall, can be prevented effectively from fluidisation dead band, it is ensured that Matter Transfer is continuously smooth.
Description
Technical field
The utility model belongs to CFBB recycle stock send-back system technical field, specially a kind of backward pine
Dynamic wind feeding back device.
Background technology
Feeding back device is the key equipment for connecting separator standpipe and burner hearth refeed line, it is therefore an objective to ensure that separator is separated back
The outer circulation material come can stably be conveyed into combustion chamber, while preventing flue gas from playing a reversed role to separator.Feeding back device will by partition wall
Valve body is divided into feeding warehouse and returning charge storehouse, and is respectively arranged loosening wind and returning charge wind in feed back bottom, by the material in two bins
Form two different fluidized states.Following problem often occurs for CFBB running, feeding back device：(1) pot
When stove startup or underload, bottom loosens wind and is upwardly into valve body, and recycle stock is few, in the presence of high blast, and material position is blown
Wear, it is impossible to the normal condition formed in material envelope, destruction separator so that separative efficiency declines, and influences boiler operatiopn；(2) furnace roof
Or castable often falls off and crashed into material returning valve in separator, material returning valve feeding warehouse bottom is deposited on, bottom is blocked and matches somebody with somebody
Wind apparatus, feeding warehouse loosening material can not be entered by loosening wind, therefore material stably can not be recycled to combustion chamber, cause recycle stock
Accumulate overtemperature coking blowing out accident.
Therefore a kind of new feed back valve gear is needed, by new air distribution mode, no matter started, underload or bottom
Block when foreign matter, can ensure that recycle stock can be continuously and stably to fire box's loopback, it is ensured that expect in operation
Position self-balancing ability.
Utility model content
This practicality newly provide it is a kind of can significantly improve the mobilization dynamic of feeding back device interior circulation material, thoroughly solve recycle stream
The band of blocking coking problem during fluidized bed boiler feeding back device bottom deposit foreign matter loosens the feeding back device of wind.The utility model mesh
Be achieved through the following technical solutions：
A kind of band loosens the feeding back device of wind, including feeding warehouse, returning charge storehouse, partition wall, returning charge wind apparatus and refeed line backward,
The feeding warehouse, returning charge storehouse are kept apart by partition wall, and the returning charge wind apparatus, which is located at, returns bin bottom, the refeed line and returning charge
Storehouse connection is communicated, and the feeding back device also includes the loosening wind apparatus positioned at feeding warehouse rear wall bottom.
The one kind for loosening the feeding back device specific embodiment of wind backward as a kind of band of the utility model is preferred, described to loosen
Wind apparatus is communicated by guide duct with the rear wall connection of feeding warehouse.
The one kind for loosening the feeding back device specific embodiment of wind backward as a kind of band of the utility model is preferred, the wind-guiding
Manage as Heat-Resisting Stainless Steel Tube；And the guide duct is many, is staggered in arrangement in two layers or multilayer.
The one kind for loosening the feeding back device specific embodiment of wind backward as a kind of band of the utility model is preferred, the wind-guiding
Pipe most descends the height of discharge air port distance between center line feeding warehouse bottom plate to be 50~100mm, and the guide duct is tilted down and with entering
The angle of 95~100 ° of feed bin rear wall formation.
The one kind for loosening the feeding back device specific embodiment of wind backward as a kind of band of the utility model is preferred, described to loosen
Wind apparatus is the anti-c-type structure for being distributed in feeding warehouse rear wall and left and right sidewall bottom.
The one kind for loosening the feeding back device specific embodiment of wind backward as a kind of band of the utility model is preferred, described to loosen
Wind apparatus is connected with the rear wall and left and right sidewall of feeding warehouse and communicated respectively by guide duct I and guide duct II.
The one kind for loosening the feeding back device specific embodiment of wind backward as a kind of band of the utility model is preferred, the wind-guiding
Pipe I, guide duct II are Heat-Resisting Stainless Steel Tube；And the guide duct I, guide duct II are many, are staggered in arrangement in two layers or multilayer.
The one kind for loosening the feeding back device specific embodiment of wind backward as a kind of band of the utility model is preferred, the wind-guiding
Pipe I tilts down and 95~100 ° of angle is formed with feeding warehouse rear wall；The guide duct II turns forward and respectively with entering
The angle of 30~45 ° of feed bin left and right sidewall formation.
The one kind for loosening the feeding back device specific embodiment of wind backward as a kind of band of the utility model is preferred, the wind-guiding
Pipe I most descends the height of discharge air port distance between center line feeding warehouse bottom plate to be 50~100mm；The guide duct II most descends discharge air port
The height of distance between center line feeding warehouse bottom plate is 50~100mm.
The utility model has the advantages that：
1st, the utility model is set in the bottom of feeding back device rear wall or rear wall and left and right sidewall loosens wind apparatus, after
The loosening wind of side wall is slightly tilted down, and in oblique angle forward, air blows forwards for the loosening wind of the left and right sides, it is to avoid blow wear material envelope and
Influence efficiency separator；
2nd, blown in front of the loosening wind direction of rear wall formation along Flow of Goods and Materials direction, the initial flow power certain to material,
The more conducively flowing of recycle stock, increases the power that material flows out to returning charge storehouse；
3rd, anti-c-type loosens wind apparatus and arranged along feeding warehouse left and right sides wall and rear wall, the equal energy of the material of surrounding and bottom
Preferably fluidized, fluidisation dead band can be prevented effectively from, it is ensured that Matter Transfer is continuously smooth；Meanwhile, the loosening wind in three directions
The circulation dynamics of material can be increased, reduction material accelerates the circulation outflow of material in the residence time of feeding warehouse；
4th, guide duct has certain altitude apart from bottom plate, even if bottom blocks the foreign matters such as a certain amount of castable, can protect
The loosening and flowing of exhibit material, it is ensured that normal Matter Transfer, will not form blocking and coking, greatly improve recirculating fluidized bed pot
Stove usage cycles；
5th, loosen wind apparatus to be arranged on above feeding warehouse bottom plate, resistance is small, can effectively reduce the energy consumption for loosening wind.
Brief description of the drawings
Fig. 1 be the utility model embodiment 1 after to loosen wind feeding back device structural representation.
Fig. 2 is the structural representation that the anti-c-type of the utility model embodiment 2 loosens wind feeding back device, and wherein A is horizontal section view
Figure, B is to bow to sectional view.
Reference：To loosening wind after 1- feeding warehouses, 2- returning charges storehouse, 3- partition walls, 4- returning charge wind apparatus, 5- refeed lines, 6-
Device, 7- guide ducts, 8- returns c-type and loosens wind apparatus, 9- guide ducts I, 10- guide ducts II, 11- guide ducts and feeding warehouse rear wall
The angle of formation, 12- guide ducts I and the angle of feeding warehouse rear wall formation, 13- guide ducts II are formed with feeding warehouse left and right sidewall
Angle.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
Embodiment 1
A kind of band loosens the feeding back device of wind backward, as shown in figure 1, including feeding warehouse 1, returning charge storehouse 2, partition wall 3, returning charge wind
Partition wall 3 is set in the middle of device 4 and refeed line 5, the feeding warehouse 1, returning charge storehouse 2, the returning charge wind apparatus 4 is located at the bottom of returning charge storehouse 2,
The refeed line 5 is connected with returning charge storehouse 2 to be communicated, and the feeding back device also includes the backward loosening positioned at feeding warehouse rear wall bottom
Wind apparatus 6.
The specific work process of the present embodiment feeding back device is：The recycle stock declined is separated through separator to enter to advance first
Feed bin 1, the backward loosening wind produced by the backward loosening wind apparatus 6 installed in the rear wall bottom of feeding warehouse 1 enters forwards
Returning charge storehouse 2, then brushes vulcanization by the returning charge wind apparatus 4 of the bottom of returning charge storehouse 2 and enters stove to refeed line 5, and by refeed line 5 upwards
Thorax combustion chamber.
The present embodiment be mounted with one in the bottom of the rear wall of feeding warehouse 1 of existing feeding back device after to loosen wind apparatus 6,
To producing a backward loosening wind inside whole feeding back device, backward loosen is blown in front of wind along Flow of Goods and Materials direction, to material
The flowing of certain initial flow power, more conducively recycle stock, increases the power that material flows out to returning charge storehouse, follows material
Ring speed is accelerated, and material outflow is more thorough.
Further, it is connected and is communicated with the rear wall of feeding warehouse 1 by guide duct 7 to loosening wind apparatus 6 after the present embodiment.Adopt
Backward loosening wind apparatus 6 is connected with the rear wall of feeding warehouse 1 with guide duct 7 and communicated, the loosening wind wind direction of generation can be carried out
Regulation.
Meanwhile, guide duct 7 described in the present embodiment is Heat-Resisting Stainless Steel Tube；And the guide duct 7 is many, in two layers or many
Layer is staggered in arrangement.Further, the guide duct 7 most descend the height of discharge air port distance between center line feeding warehouse bottom plate for 50~
100mm.The air outlet of guide duct 7 leaves certain altitude apart from the bottom plate of feeding warehouse 1, even if bottom blocks a certain amount of castable etc.
During foreign matter, the loosening and flowing of material can guarantee that, it is ensured that normal Matter Transfer, will not form blocking and coking, carry significantly
High circulation fluidized-bed combustion boiler usage cycles.
Further, the guide duct 7 tilts down and 95~100 ° of angle 11 is formed with the rear wall of feeding warehouse 1.This
Embodiment tilts down guide duct 7, air is blown forward, it is to avoid blows and wears material envelope and influence efficiency separator.
Embodiment 2
A kind of band loosens the feeding back device of wind backward, as shown in Fig. 2 including feeding warehouse 1, returning charge storehouse 2, partition wall 3, returning charge wind
Partition wall 3 is set in the middle of device 4 and refeed line 5, the feeding warehouse 1, returning charge storehouse 2, the returning charge wind apparatus 4 is located at the bottom of returning charge storehouse 2,
The refeed line 5 is connected with returning charge storehouse 2 to be communicated, and the feeding back device also includes being distributed in the rear wall of feeding warehouse 1 and left and right sidewall
The anti-c-type of bottom loosens wind apparatus 8.
The specific work process of the present embodiment feeding back device is：The recycle stock declined is separated through separator to enter to advance first
Feed bin 1, the loosening wind produced by the anti-c-type loosening wind apparatus 8 installed in the rear wall of feeding warehouse 1 and left and right sides wall bottom is blown
Into returning charge storehouse 2, vulcanization is then brushed by the returning charge wind apparatus 4 of the bottom of returning charge storehouse 2 upwards and entered to refeed line 5, and by refeed line 5
Enter fire box.
The present embodiment is mounted with an anti-C in the rear wall of feeding warehouse 1 of existing feeding back device and the bottom in left and right sides portion
Type loosens wind apparatus 8, and making the material of feeding warehouse bottom can be flowed, and can be prevented effectively from fluidisation dead band, it is ensured that Matter Transfer
It is continuous smooth；Meanwhile, the loosening wind in three directions can increase the circulation dynamics of material, and reduction material is in the stop of feeding warehouse
Between, accelerate the circulation outflow of material.
Further, the anti-c-type of the present embodiment loosen wind apparatus 8 by guide duct I 9 and guide duct II 10 respectively with feeding warehouse
Rear wall and left and right sidewall connection are communicated.Using guide duct I 9 and guide duct II 10 by anti-c-type loosen wind apparatus 8 respectively with charging
The rear wall of storehouse 1 and left and right sidewall connection are communicated, and the loosening wind wind direction of generation can be adjusted.
Meanwhile, guide duct I 9, guide duct II 10 described in the present embodiment are Heat-Resisting Stainless Steel Tube；And the guide duct I 9, lead
Airduct II 10 is many, is staggered in arrangement in two layers or multilayer.
Further, the guide duct I tilts down and 95~100 ° of angle 12 is formed with feeding warehouse rear wall；It is described
Guide duct II turn forward and respectively with feeding warehouse left and right sidewall 30~45 ° of angle 13 of formation.The pine of the present embodiment rear wall
Dynamic wind is slightly tilted down, and in oblique angle forward, air blows the loosening wind of the left and right sides forwards, it is to avoid blows and wears material envelope and influence separation
Device efficiency.
Further, the guide duct I 9 most descend the height of discharge air port distance between center line feeding warehouse bottom plate for 50~
100mm；The guide duct II 10 most descends the height of discharge air port distance between center line feeding warehouse bottom plate to be 50~100mm.Guide duct I
9 and guide duct II 10 most descend the discharge air port to leave certain altitude apart from the bottom plate of feeding warehouse 1, even if bottom blocks a certain amount of
During the foreign matters such as castable, the loosening and flowing of material can guarantee that, it is ensured that normal Matter Transfer, will not form blocking and knot
Jiao, greatly improves CFBB usage cycles.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of band loosens the feeding back device of wind, including feeding warehouse, returning charge storehouse, partition wall, returning charge wind apparatus and refeed line, institute backward
Partition wall is stated in the middle of feeding warehouse and returning charge storehouse, the returning charge wind apparatus, which is located at, returns bin bottom, the feed pipe and feeding warehouse
Connection is communicated, it is characterised in that the feeding back device also includes the loosening wind apparatus positioned at feeding warehouse rear wall bottom.
2. a kind of band as claimed in claim 1 loosens the feeding back device of wind backward, it is characterised in that the loosening wind apparatus passes through
Guide duct is communicated with the rear wall connection of feeding warehouse.
3. a kind of band as claimed in claim 2 loosens the feeding back device of wind backward, it is characterised in that the guide duct for it is heat-resisting not
Become rusty steel pipe；And the guide duct is many, is staggered in arrangement in two layers or multilayer.
4. a kind of band loosens the feeding back device of wind backward as described in Claims 2 or 3, it is characterised in that the guide duct is most lower
Discharge air port distance between center line feeding warehouse bottom plate height be 50~100mm, the guide duct tilt down and with after feeding warehouse
The angle of 95~100 ° of side wall formation.
5. a kind of band as claimed in claim 1 loosens the feeding back device of wind backward, it is characterised in that the loosening wind apparatus is to divide
Anti- c-type structure of the cloth in feeding warehouse rear wall and left and right sidewall bottom.
6. a kind of band as claimed in claim 5 loosens the feeding back device of wind backward, it is characterised in that the loosening wind apparatus passes through
Guide duct I and guide duct II are connected with the rear wall and left and right sidewall of feeding warehouse communicate respectively.
7. a kind of band as claimed in claim 6 loosens the feeding back device of wind backward, it is characterised in that the guide duct I, guide duct
II is Heat-Resisting Stainless Steel Tube；And the guide duct I, guide duct II are many, are staggered in arrangement in two layers or multilayer.
8. a kind of band loosens the feeding back device of wind backward as claimed in claims 6 or 7, it is characterised in that the guide duct I is downward
Tilt and with feeding warehouse rear wall 95~100 ° of angle of formation；The guide duct II turns forward and respectively with feeding warehouse or so
The angle of 30~45 ° of side wall formation.
9. a kind of band loosens the feeding back device of wind backward as claimed in claims 6 or 7, it is characterised in that the guide duct I is most lower
The height for discharging air port distance between center line feeding warehouse bottom plate is 50~100mm；The guide duct II most descends discharge air port center line
It is 50~100mm apart from the height of feeding warehouse bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621441777.2U CN206398707U (en) | 2016-12-27 | 2016-12-27 | A kind of band loosens the feeding back device of wind backward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621441777.2U CN206398707U (en) | 2016-12-27 | 2016-12-27 | A kind of band loosens the feeding back device of wind backward |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206398707U true CN206398707U (en) | 2017-08-11 |
Family
ID=59511459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621441777.2U Expired - Fee Related CN206398707U (en) | 2016-12-27 | 2016-12-27 | A kind of band loosens the feeding back device of wind backward |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206398707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826283A (en) * | 2018-08-15 | 2018-11-16 | 黑龙江福恩德瑞能源科技有限公司 | The side-blown wind system of recirculating fluidized bed returning charge and remodeling method |
-
2016
- 2016-12-27 CN CN201621441777.2U patent/CN206398707U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826283A (en) * | 2018-08-15 | 2018-11-16 | 黑龙江福恩德瑞能源科技有限公司 | The side-blown wind system of recirculating fluidized bed returning charge and remodeling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20191227 |