CN204987062U - Face stove powder feeding device - Google Patents
Face stove powder feeding device Download PDFInfo
- Publication number
- CN204987062U CN204987062U CN201520729643.XU CN201520729643U CN204987062U CN 204987062 U CN204987062 U CN 204987062U CN 201520729643 U CN201520729643 U CN 201520729643U CN 204987062 U CN204987062 U CN 204987062U
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- boiler
- stoppage
- transit
- powder
- outlet
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Abstract
The utility model discloses a face stove powder feeding device, it utilizes the field to belong to buggy safety high efficiency, wherein, at stoppage in transit boiler pulverized coal storehouse upper shed, the pipe laying is connected to venturi's aditus laryngis, the buggy mixes exit linkage to the entry that move a boiler tuber pipe of back through venturi with conveying air in venturi, surplus buggy in the stoppage in transit boiler pulverized coal storehouse gets into venturi's throat under the effect of stoppage in transit boiler machine supplying powder, the venturi import is connected with carrying the air supply, carry and close on operating boiler for the powder system, then let in furnace combustion. The utility model discloses can avoid the waste of fuel that the buggy evacuation led to the fact in the boiler pulverized coal storehouse safety of guaranteeing to stop transport. Furthermore, the utility model discloses install rational in infrastructure, the small investment, the working costs is low, is fit for the china's national situation, the power plant boiler of storage formula powder process system in being applicable to, application prospect is wide.
Description
Technical field:
The utility model relates to a kind of station boiler powder process and powder feed system, particularly relates to one and faces stove dust feeder.
Background technology:
Pulverized-coal fired boiler with bin storage type pulverizing system occupies certain proportion in China's station boiler.Pile up for a long time for preventing coal dust and cause spontaneous combustion, need when shutdown of boiler overhauls in advance coal dust remaining in warehouse to be discharged, especially, when some join inflammable and explosive bituminous coal, the brown coal of the Boiler Mixed Burning of the ball type pulverizer system, more need the coal dust in powder storehouse emptying as early as possible after shutdown of boiler.But when boiler breakdowns blowing out, power plant cannot be emptying in time by the coal dust stored in Pulverized Coal Bin, method the most frequently used is at present ash, the slag system that the coal dust in powder storehouse is directly entered boiler by method by manually putting powder, in today that the energy is increasingly in short supply, this processing method is very inconvenient and economical.
Utility model content:
The purpose of this utility model is for problems of the prior art, provide one and face stove dust feeder, it is after the blowing out of middle warehouse formula pulverized-coal fired boiler, as early as possible the coal dust do not used in powder storehouse is entered the operating boiler combustion closed on, ensure the safety in stoppage in transit boiler compound storehouse on the one hand, avoid the waste of fuel of directly being discharged by coal dust and causing on the other hand.
In order to achieve the above object, the utility model takes following technical scheme to be achieved:
One faces stove dust feeder, comprises stoppage in transit pulverized coal bunker of boiler, stoppage in transit Boiler Coal Feeding machine, Venturi tube, boiler operation machine supplying powder and boiler operation Pulverized Coal Bin; Wherein, the outlet of stoppage in transit pulverized coal bunker of boiler is connected to the entrance of stoppage in transit Boiler Coal Feeding machine, the outlet of stoppage in transit Boiler Coal Feeding machine is connected to the throat of Venturi tube, the outlet of Venturi tube and the outlet of boiler operation machine supplying powder are connected to the entrance of boiler operation primary air piping, and the outlet of boiler operation primary air piping is connected to the burner hearth of boiler; The outlet of boiler operation Pulverized Coal Bin is connected to the entrance of boiler operation machine supplying powder.
The utility model further improves and is: the outlet of stoppage in transit Boiler Coal Feeding machine is connected to the throat of Venturi tube by stoppage in transit boiler powder sinking tube.
The utility model further improves and is: the outlet of boiler operation machine supplying powder is connected to the entrance of boiler operation primary air piping by boiler operation powder sinking tube.
The utility model further improves and is: the outlet of Venturi tube is connected to the entrance of boiler operation primary air piping by transfer pipeline.
The utility model further improves and is: transfer pipeline is provided with flow control valve.
The utility model further improves and is: Venturi tube import is connected to conveying source of the gas.
The utility model further improves and is: conveying source of the gas is Powder discharging fan or compressed air gas source.
Compared with prior art, the utility model has following technique effect:
1) the coal dust fast evacuation in stoppage in transit boiler compound storehouse can be made, ensure the safety in powder storehouse and reduce cost of labor;
2) coal dust of discharging directly enters and closes on boiler combustion, avoids coal-fired waste, can increase economic efficiency;
3) by the Venturi tube of appropriate design, can the row's of making powder process more smooth and easy, avoid conveying Air Reverse seal in Pulverized Coal Bin, impact row powder;
4) what the utility model provided faces stove dust feeder, and equipment is simple, and it is convenient to realize, and controls flexibly, can realize by means of only Venturi tube, powder feeding pipes etc.;
5) what the utility model provided faces stove dust feeder, and it is rational in infrastructure, small investment, is applicable to China's national situation;
6) what the utility model provided faces stove dust feeder, convenient and easy on the implementation, is easy to transform existing boiler, not by territorial restrictions; And be not only applicable to transform existing boiler, be equally applicable in the design of newly constructed boiler;
7) what the utility model provided faces stove dust feeder, does not have the restriction of the type of furnace, capacity, coal, thus has broad application prospects.
In sum, the utility model, for the power station having more than two (containing two) pulverized-coal fired boilers, is taked the coal dust in stoppage in transit boiler compound storehouse to send into the mode of closing on the normal boiler combustion run, can be reduced coal-fired waste, increase economic efficiency.
Accompanying drawing illustrates:
Fig. 1 is a kind of structural representation facing stove dust feeder of the utility model;
In figure: 1 is stoppage in transit pulverized coal bunker of boiler, 2 is stoppage in transit Boiler Coal Feeding machine, 3 is stoppage in transit boiler powder sinking tube, and 4 is Venturi tube import, and 5 is Venturi tube, 6 is transfer pipeline, 7 is boiler operation powder sinking tube, and 8 is boiler operation machine supplying powder, and 9 is boiler operation Pulverized Coal Bin, 10 is boiler operation primary air piping, and 11 is flow control valve.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1, the utility model one faces stove dust feeder, comprises stoppage in transit pulverized coal bunker of boiler 1, stoppage in transit Boiler Coal Feeding machine 2, Venturi tube 5, boiler operation machine supplying powder 8 and boiler operation Pulverized Coal Bin 9; Wherein, the outlet of stoppage in transit pulverized coal bunker of boiler 1 is connected to the entrance of stoppage in transit Boiler Coal Feeding machine 2, the outlet of stoppage in transit Boiler Coal Feeding machine 2 is connected to the throat of Venturi tube 5 by stoppage in transit boiler powder sinking tube 3, the outlet of Venturi tube 5 is connected to the entrance of boiler operation primary air piping 10 by transfer pipeline 6; The outlet of boiler operation Pulverized Coal Bin 9 connects the entrance of boiler operation machine supplying powder 8, and the outlet of boiler operation machine supplying powder 8 connects the entrance of boiler operation primary air piping 10 by boiler operation powder sinking tube 7, the outlet of boiler operation primary air piping 10 is connected to the burner hearth of boiler.Wherein, transfer pipeline 6 is provided with flow control valve 11, controls flow by flow control valve 11, Venturi tube import 4 is connected to conveying source of the gas.
After shutdown of boiler, in stoppage in transit pulverized coal bunker of boiler 1, remaining coal dust is under the effect of stoppage in transit Boiler Coal Feeding machine 2, is entered the throat of Venturi tube 5 by stoppage in transit boiler powder sinking tube 3, regulates the rotating speed of stoppage in transit Boiler Coal Feeding machine 2 to control powder-feeding amount.
Venturi tube import 4 is connected with conveying source of the gas, conveying source of the gas can be Powder discharging fan, also can be compressed air gas source etc., determine according to power plant's field condition, conveying air raises at throat's flow velocity of Venturi Venturi tube 5, and pressure reduces, and forms a local depression district, prevent conveying air from playing a reversed role into powder storehouse because of high pressure, affect powder falling.
Be transported to by transfer pipeline 6 after coal dust mixes with conveying air in Venturi tube 5 and close on operating Boiler Coal Feeding system.Coal dust in boiler operation Pulverized Coal Bin 9 enters boiler operation primary air piping 10 by boiler operation powder sinking tube 7 under the control of boiler operation machine supplying powder 8, boiler operation machine supplying powder 8 can according to circumstances be opened, part is opened or close, wind in transfer pipeline 6, powder mixture also enter in boiler operation primary air piping 10, then pass into the hearth combustion of boiler.
In above embodiment, to connect, machine supplying powder introduces, and reality also can be connected with Venturi tube by multiple stage machine supplying powder simultaneously, and powder feeding is simultaneously to accelerate to arrange powder progress.Wind, powder mixture that stoppage in transit stove is come also can pass into the multiple primary air piping running stove, reduce SR and each angle powder amount deviation.
Claims (7)
1. face a stove dust feeder, it is characterized in that: comprise stoppage in transit pulverized coal bunker of boiler (1), stoppage in transit Boiler Coal Feeding machine (2), Venturi tube (5), boiler operation machine supplying powder (8) and boiler operation Pulverized Coal Bin (9); Wherein, the outlet of stoppage in transit pulverized coal bunker of boiler (1) is connected to the entrance of stoppage in transit Boiler Coal Feeding machine (2), the outlet of stoppage in transit Boiler Coal Feeding machine (2) is connected to the throat of Venturi tube (5), the outlet of Venturi tube (5) and the outlet of boiler operation machine supplying powder (8) are connected to the entrance of boiler operation primary air piping (10), and the outlet of boiler operation primary air piping (10) is connected to the burner hearth of boiler; The outlet of boiler operation Pulverized Coal Bin (9) is connected to the entrance of boiler operation machine supplying powder (8).
2. one according to claim 1 faces stove dust feeder, it is characterized in that: the outlet of stoppage in transit Boiler Coal Feeding machine (2) is connected to the throat of Venturi tube (5) by stoppage in transit boiler powder sinking tube (3).
3. one according to claim 1 faces stove dust feeder, it is characterized in that: the outlet of boiler operation machine supplying powder (8) is connected to the entrance of boiler operation primary air piping (10) by boiler operation powder sinking tube (7).
4. one according to claim 1 faces stove dust feeder, it is characterized in that: the outlet of Venturi tube (5) is connected to the entrance of boiler operation primary air piping (10) by transfer pipeline (6).
5. one according to claim 4 faces stove dust feeder, it is characterized in that: transfer pipeline (6) is provided with flow control valve (11).
6. one according to claim 1 faces stove dust feeder, it is characterized in that: Venturi tube import (4) is connected to conveying source of the gas.
7. one according to claim 6 faces stove dust feeder, it is characterized in that: conveying source of the gas is Powder discharging fan or compressed air gas source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729643.XU CN204987062U (en) | 2015-09-18 | 2015-09-18 | Face stove powder feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729643.XU CN204987062U (en) | 2015-09-18 | 2015-09-18 | Face stove powder feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204987062U true CN204987062U (en) | 2016-01-20 |
Family
ID=55121429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520729643.XU Expired - Fee Related CN204987062U (en) | 2015-09-18 | 2015-09-18 | Face stove powder feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204987062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345521A (en) * | 2021-12-21 | 2022-04-15 | 中国建筑第二工程局有限公司 | Preparation system for preparing floor gypsum powder from construction waste and use method of preparation system |
-
2015
- 2015-09-18 CN CN201520729643.XU patent/CN204987062U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345521A (en) * | 2021-12-21 | 2022-04-15 | 中国建筑第二工程局有限公司 | Preparation system for preparing floor gypsum powder from construction waste and use method of preparation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20170918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |