CN202501489U - Coal-feeding air system - Google Patents
Coal-feeding air system Download PDFInfo
- Publication number
- CN202501489U CN202501489U CN2012200308767U CN201220030876U CN202501489U CN 202501489 U CN202501489 U CN 202501489U CN 2012200308767 U CN2012200308767 U CN 2012200308767U CN 201220030876 U CN201220030876 U CN 201220030876U CN 202501489 U CN202501489 U CN 202501489U
- Authority
- CN
- China
- Prior art keywords
- coal
- pipe
- communicated
- air
- dredging
- 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 - Fee Related
Links
Abstract
The utility model relates to a coal-feeding air system, belonging to the field of thermal power generation equipment. The system comprises a furnace hearth, an air blower, valves, an air blowing pipe, a coal dropping pipe, a dredging pipe, a fire observation hole, a coal feeder, and a coal feeding pipe, wherein the coal dropping pipe is arranged at the top of the furnace hearth, the bottom of the coal dropping pipe is equipped with the fire observation hole and the top of the coal dropping pipe is communicated with the air blowing pipe, a pipe body of the fire observation hole is communicated with the dredging pipe, one end of the air blowing pipe is communicated with the coal dropping pipe and the dredging pipe and the other end of the air blowing pipe is communicated with the air blower, the middle of the coal dropping pipe is communicated with one end of the coal feeding pipe, the coal feeder is communicated with the other end of the coal feeding pipe, and the valves are installed on the air blowing pipe, the coal dropping pipe and the dredging pipe. The system of the utility model has the beneficial effects that the air amount of the coal feeding air is guaranteed to be enough and the coal discharging is guaranteed to be smooth; and that ash deposit or coal deposit in the fire observation hole pipe is avoided, so that operational personnel can timely observe coal dropping and combustion conditions and timely make adjustments, thereby ensuring safe and economical operations.
Description
Technical field
The utility model belongs to the steam power plant field, is specifically related to a kind of coal spread wind system.
Background technology
At present, the thermal power plant adopts the auger type feeder in burner hearth, to carry coal more, and coal falls into coal spout through feeder by coal-feeding tube, gets into the burner hearth internal combustion then.The operations staff observes coal breakage situation and combustion case at any time for ease, and peephole can be set on coal spout.In order to guarantee down that coal is unobstructed, avoid stopping up and be provided with coal spread wind.Coal spread wind is from the secondary air duct lateral; Because from secondary air duct; Wind-force is little and blast is low, can not effectively play the effect of coal spread wind, the chute blockage phenomenon is arranged often: particularly between burn period; Secondary air flow can not carry out freely adjusting when reaching underrun before the throwing fuel, chute blockage phenomenon especially severe when ature of coal changes (too wet, too thin); Peephole is connected on and does not have any blow device on the coal spout; Because the long-pending coal of long-term dust stratification causes peephole to stop up, thereby makes the operations staff can't observe coal breakage and combustion case timely; Be not easy to timely combustion case adjusted, the safety and economic operation of enterprise in serious threat.
Summary of the invention
The technical problem that the utility model will solve is: overcome the deficiency of prior art, provide a kind of and can guarantee the unobstructed coal spread wind system that can avoid line clogging again of coal breakage.
The utility model solves the technical scheme that its technical problem adopted: a kind of coal spread wind system, comprise burner hearth, pressure fan, valve, ajutage, coal spout, dredging pipe, peephole, feeder and coal-feeding tube, and said roof of the furnace is provided with coal spout; Said coal spout bottom is provided with peephole, and said coal spout top is communicated with ajutage; Said peephole pipe shaft is communicated with dredging pipe; Said ajutage one end is communicated with coal spout and dredging pipe respectively, and the other end is communicated with pressure fan; Said coal spout middle part is communicated with coal-feeding tube one end; Feeder is communicated with the coal-feeding tube other end; On said ajutage, coal spout and the dredging pipe valve is installed.
Compared with prior art; The beneficial effect of the utility model is: pressure fan has guaranteed the abundance of coal spread wind amount; Guaranteed that time coal is unobstructed, avoided the long-pending coal phenomenon of dust stratification in the pipe, be convenient to the operations staff and observe coal breakage and combustion case timely; And then in time adjust, guaranteed the safety and economic operation of enterprise.
Description of drawings
Fig. 1 is the utility model sketch map.
Be labeled as among the figure:
1, burner hearth; 2, pressure fan; 3, valve; 4, ajutage; 5, coal spout; 6, dredging pipe; 7, peephole; 8, feeder; 9, coal-feeding tube.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model done further describing:
As shown in Figure 1, a kind of coal spread wind system comprises burner hearth 1, pressure fan 2, valve 3, ajutage 4, coal spout 5, dredging pipe 6, peephole 7, feeder 8 and coal-feeding tube 9, and said burner hearth 1 top is provided with coal spout 5; Said coal spout 5 bottoms are provided with peephole 7, and said coal spout 5 tops are communicated with ajutage 4; Said peephole 7 pipe shafts are communicated with dredging pipe 6; Said ajutage 4 one ends are communicated with coal spout 5 and dredging pipe 6 respectively, and the other end is communicated with pressure fan 2; Said coal spout 5 middle parts are communicated with coal-feeding tube 9 one ends; Feeder 8 is communicated with coal-feeding tube 9 other ends; On said ajutage 4, coal spout 5 and the dredging pipe 6 valve 3 is installed.
The utility model operation principle and the course of work are following:
When feeder 8 started, coal entered into coal spout 5 by coal-feeding tube 9, dropped into burning in the burner hearth 1 at last.At this moment, pressure fan 2 work produce coal spread wind, and coal spread wind is transported to respectively in coal spout 5 and the dredging pipe 6 by ajutage 4, and the coal spread wind of the coal spout of flowing through directly enters in the burner hearth 1, and the coal spread wind of the dredging pipe 6 of flowing through is again in peephole 7 enters into burner hearth 1.Be installed in the valve 3 on ajutage 4, coal spout 5 and the dredging pipe 6 through adjusting, can regulate, realized the optimized distribution of coal spread wind, avoided the wind-force waste coal spread wind wind-force size.
The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model technical scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of the utility model technical scheme according to the technical spirit of the utility model.
Claims (1)
1. a coal spread wind system comprises burner hearth (1), pressure fan (2), valve (3), ajutage (4), coal spout (5), dredging pipe (6), peephole (7), feeder (8) and coal-feeding tube (9), and said burner hearth (1) top is provided with coal spout (5); Said coal spout (5) bottom is provided with peephole (7), and it is characterized in that: said coal spout (5) top is communicated with ajutage (4); Said peephole (7) pipe shaft is communicated with dredging pipe (6); Said ajutage (4) one ends are communicated with coal spout (5) and dredging pipe (6) respectively, and the other end is communicated with pressure fan (2); Said coal spout (5) middle part is communicated with coal-feeding tube (9) one ends; Feeder (8) is communicated with coal-feeding tube (9) other end; On said ajutage (4), coal spout (5) and the dredging pipe (6) valve (3) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200308767U CN202501489U (en) | 2012-01-31 | 2012-01-31 | Coal-feeding air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200308767U CN202501489U (en) | 2012-01-31 | 2012-01-31 | Coal-feeding air system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501489U true CN202501489U (en) | 2012-10-24 |
Family
ID=47038102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200308767U Expired - Fee Related CN202501489U (en) | 2012-01-31 | 2012-01-31 | Coal-feeding air system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202501489U (en) |
-
2012
- 2012-01-31 CN CN2012200308767U patent/CN202501489U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20140131 |