CN204313271U - A kind of CFBB charging gear - Google Patents
A kind of CFBB charging gear Download PDFInfo
- Publication number
- CN204313271U CN204313271U CN201420652530.XU CN201420652530U CN204313271U CN 204313271 U CN204313271 U CN 204313271U CN 201420652530 U CN201420652530 U CN 201420652530U CN 204313271 U CN204313271 U CN 204313271U
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- CN
- China
- Prior art keywords
- feed pipe
- ajutage
- cfbb
- burner hearth
- charging gear
- 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.)
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Abstract
The utility model discloses a kind of CFBB charging gear, comprise burner hearth, feed pipe, it is characterized in that: also comprise the ajutage be connected with burner hearth, ajutage is provided with tilting section, described feed pipe is connected with the tilting section of ajutage, be fixed with downward-sloping jet baffle plate in ajutage at the upper side of feed pipe, below feed pipe, be provided with belt feeder, its feeding belt is positioned at the bottom of feed pipe.The utility model can form negative pressure at feed place, makes fuel to feed smoothly under the effect of negative-pressure ward power, eliminates clogging and flue gas anti-channeling.
Description
Technical field
The utility model relates to a kind of CFBB charging gear.
Background technology
CFBB is a kind of clean, efficient boiler, wide with its fuel tolerance, pollutant emission is low and be widely used in the industry-by-industries such as power plant, metallurgy, papermaking; Along with the development of CFBB, increasing biomass fuel, garbage fuel burn on fluidized-bed combustion boiler; Boiler hearth of circulating fluidized bed is operation under positive pressure, and living beings and garbage fuel, when sending into burner hearth, flue gas anti-channeling often occurs, and fuel is spontaneous combustion in feed pipe, and the fuel that humidity is larger is blocked in feed pipe.Although each power plant operationally, to improve furnace outlet negative pressure, the method for increase feed sealing air air quantity can control this two problems can not from basic solution; As the problem adopting the mode of screw(-type) feeder forced feeding effectively can solve fuel blocking, but run into the softer fuel of bulk quality can be wrapped on screw rod, make screw rod stuck, cannot operate, when especially sending into the rubbish containing article such as iron wires, jam is particularly serious.
Utility model content
For the technical problem of above-mentioned existence, the utility model provides a kind of CFBB charging gear, and it can form negative pressure at feed place, makes fuel to feed smoothly under the effect of negative-pressure ward power, eliminates clogging.
In order to achieve the above object, a kind of CFBB charging gear of the present utility model, comprise burner hearth, feed pipe, it is characterized in that: also comprise the ajutage be connected with burner hearth, ajutage is provided with tilting section, and described feed pipe is connected with the tilting section of ajutage, is fixed with downward-sloping jet baffle plate in the ajutage at the upper side of feed pipe, below feed pipe, be provided with belt feeder, its feeding belt is positioned at the bottom of feed pipe;
During use, the cold wind that blower fan is sent here, through ajutage, enters burner hearth, through jet baffle plate, because circulation area reduces, flow velocity increases, this areal pressure reduces, and produce local decompression herein, fuel is delivered to herein through belt feeder, under the effect of negative pressure, fall into ajutage, enter burner hearth, fuel can be fed smoothly, eliminate clogging, and air quantity larger in ajutage effectively can prevent flue gas anti-channeling in burner hearth;
Preferred as one, described jet baffle plate is connected in the junction, upper end of ajutage and feed pipe; Maximum negative pressure can be formed at the oral area of feed pipe;
In sum, the utility model can form negative pressure at feed place, makes fuel to feed smoothly under the effect of negative-pressure ward power, eliminates clogging and flue gas anti-channeling.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, this CFBB charging gear, comprise burner hearth 1, the ajutage 2 be connected with burner hearth 1, feed pipe 3, ajutage 2 is provided with tilting section, described feed pipe 3 is connected with the tilting section of ajutage 2, is fixed with downward-sloping jet baffle plate 4 in the ajutage 2 at the upper side of feed pipe 3, and jet baffle plate 4 is connected in the junction, upper end of ajutage 2 and feed pipe 3, below feed pipe 3, be provided with belt feeder 5, its feeding belt is positioned at the bottom of feed pipe 3;
During use, the cold wind that blower fan is sent here enters burner hearth 1 through ajutage 2, when jet baffle plate 4, because circulation area reduces, flow velocity increases, and this areal pressure reduces, produce local decompression herein, fuel is delivered to herein through belt feeder 5, under the effect of negative pressure, falls into ajutage 2, enter burner hearth 1 again, fuel can be fed smoothly, eliminate clogging, and air quantity larger in ajutage 2 effectively can prevent flue gas anti-channeling in burner hearth.
Claims (2)
1. a CFBB charging gear, comprise burner hearth, feed pipe, it is characterized in that: also comprise the ajutage be connected with burner hearth, ajutage is provided with tilting section, described feed pipe is connected with the tilting section of ajutage, be fixed with downward-sloping jet baffle plate in ajutage at the upper side of feed pipe, below feed pipe, be provided with belt feeder, its feeding belt is positioned at the bottom of feed pipe.
2. a kind of CFBB charging gear according to claim 1, is characterized in that: described jet baffle plate is connected in the junction, upper end of ajutage and feed pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420652530.XU CN204313271U (en) | 2014-11-05 | 2014-11-05 | A kind of CFBB charging gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420652530.XU CN204313271U (en) | 2014-11-05 | 2014-11-05 | A kind of CFBB charging gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204313271U true CN204313271U (en) | 2015-05-06 |
Family
ID=53135585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420652530.XU Active CN204313271U (en) | 2014-11-05 | 2014-11-05 | A kind of CFBB charging gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204313271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090979A (en) * | 2016-06-28 | 2016-11-09 | 无锡锡能锅炉有限公司 | A kind of pulverized-coal fired boiler feeding structure |
-
2014
- 2014-11-05 CN CN201420652530.XU patent/CN204313271U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090979A (en) * | 2016-06-28 | 2016-11-09 | 无锡锡能锅炉有限公司 | A kind of pulverized-coal fired boiler feeding structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |