CN207035777U - A kind of fuel delivery system with drying device - Google Patents
A kind of fuel delivery system with drying device Download PDFInfo
- Publication number
- CN207035777U CN207035777U CN201720902943.2U CN201720902943U CN207035777U CN 207035777 U CN207035777 U CN 207035777U CN 201720902943 U CN201720902943 U CN 201720902943U CN 207035777 U CN207035777 U CN 207035777U
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- CN
- China
- Prior art keywords
- drying device
- burner hearth
- delivery system
- fuel delivery
- gas pipeline
- 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 fuel delivery system with drying device, a kind of fuel delivery system with drying device includes coal store and cage, the cage includes housing, one end is provided with below the charging aperture other end and is provided with discharging opening above the housing, discharging opening is connected by a discharge nozzle with burner hearth, connected below coal store by feeding pipe with housing charging aperture, also include a drying device for being used to coal ash in cage be dried, the drying device includes being used for the heat-producing unit for producing hot gas, the heating space of the hollow formation of enclosure interior, one end is connected the gas pipeline and outlet pipe that the other end connects with heating space with heat-producing unit, described outlet pipe one end connects with heating space, with coal ash is dried, reduce coal ash and block probability, the advantages of mitigating intensity of workers.
Description
Technical field
It the utility model is related to a kind of CFBB, more particularly to a kind of fuel delivery system with drying device
System.
Background technology
Technology of Circulating Fluidized Bed Boiler is the high-efficiency low-pollution cleaning burning branch art developed rapidly in recent ten years.State
This technology the field such as utilizes to have obtained widespread commercial use in station boiler, Industrial Boiler and offal treatment on border, and
Develop to the large circulating fluidized bed boiler of hundreds of thousands multikilowatt scale；Domestic research in this respect, development and application also by
Gradually rise, among existing up to a hundred CFBBs put into operation or manufactured.Following several years will be ciculation fluidized
One important period of bed rapid development.
Recirculating fluidized bed is burnt using coal as fuel, and because equipment needs continuous firing, it is very big to the demand of coal,
Therefore the one large-scale coal store for being used to deposit coal is often set in the burner hearth front end of CFBB, deposited by coal store
Amplification quantity coal, it is sent into via screw conveyor in burner hearth, persistently supplies burner hearth and burnt.
In the prior art as shown in figure 5, a kind of coal conveying device includes coal store 1, cage 2 and one end and coal store 1
Lower end connects the feeding pipe 3 that the other end connects with the charging aperture of cage 2, and coal ash is delivered to cage through feeding pipe 3 in coal store 1
In 2, under the active force of cage 2, coal ash is delivered in burner hearth 51 through discharge nozzle 4 and burnt.
It is in place of the deficiencies in the prior art, in actual production process, steam power plant can produce a large amount of mud, to avoid becoming silted up
Mud impacts to environment, is delivered in burner hearth and is burnt after typically mud can be mixed with coal dust, to reduce mud to ring
The pollution in border, and mud makes its mixture become to moisten after being mixed with coal dust, be easily adhered in course of conveying on discharging tube wall
Feed blocking is caused, and later stage dredging holds reinforcing bar to carrying out impact dredging at blocking by manpower substantially, dredging work is more
Trouble.
Utility model content
The purpose of this utility model is to provide a kind of fuel delivery system with drying device, has and coal ash is done
It is dry, reduce coal ash block probability, mitigate intensity of workers the advantages of.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of fuel delivery system with drying device, including coal store and cage, the cage includes housing, described
One end is provided with below the charging aperture other end and is provided with discharging opening above housing, and discharging opening is connected by a discharge nozzle with burner hearth,
Connected by feeding pipe with housing charging aperture below coal store, in addition to one the drying for coal ash in cage to be dried
Device, the drying device include be used for produce the heat-producing unit of hot gas, the heating space of the hollow formation of enclosure interior, one end with
Heat-producing unit connects the gas pipeline and outlet pipe that the other end connects with heating space, described outlet pipe one end and heating
Space connects.
Using said structure, the coal ash in coal store is delivered in cage through feeding pipe, then the screw drives through cage
Coal ash is delivered in burner hearth by active force from discharge nozzle to be burnt, while heat-producing unit is produced hot gas and entered through gas pipeline
In heating space in housing, coal ash is dried by the heat transfer of housing, makes its coal ash be not easy to adhere on discharge nozzle,
Reduce it and block probability, so as to reduce the dredging work of staff and enable its boiler continuous service, improve work effect
Rate.
More preferably：The heat-producing unit is arranged to burner hearth, is provided with the gas pipeline for by burner hearth
Flue gas is transported in the air-introduced machine in heating space.
Using said structure, by the way that heat-producing unit is arranged into burner hearth, a large amount of high temperature are produced when burner hearth fuel combustion
Flue gas, flue gas in burner hearth is delivered in heating space by gas pipeline by air-introduced machine, coal ash is dried, to flue gas
Multiple utilization is carried out, effectively reaches the effect to economize on resources.
More preferably：It is in the round platform for being more than the other end towards burner hearth one end that the gas pipeline, which connects one end with burner hearth,
Shape, gas pipeline connect with inboard wall of burner hearth and screen pack are provided with one end.
Using said structure, truncated conical shape is arranged to by the way that gas pipeline is in into burner hearth one end, is easy to suck flue gas
In gas pipeline, and then flue gas is filtered by screen pack, avoid dust in flue gas from entering in gas pipeline.
More preferably：The gas pipeline is in burner hearth one end in upper end towards the heeling condition inside burner hearth,
The end face of the screen pack and gas pipeline is set.
Using said structure, it is arranged to upper end towards burner hearth by the way that gas pipeline is in into one end and screen pack in burner hearth
Inner inclination state, the dust that its filter screen filtration goes out is dropped under gravity, avoid dust from being jammed in screen pack
Surface, influence its filter effect.
More preferably：Described outlet pipe one end connects with burner hearth.
Using said structure, by the way that outlet pipe one end is connected with burner hearth, enable its flue gas be back in burner hearth after
It is continuous to carry out further work.
More preferably：The heating interior volume is staggeredly arranged at intervals with some deflectors along shell length direction.
Using said structure, by some deflectors set in housing, barrier effect is played to flue gas, its flue gas is existed
While the residence time is more long in heating space, conductive force is played, it is strengthened the drying effect to coal ash.
More preferably：The relative heating space wall one end of the deflector forms semicircle towards gas pipeline side coiling
Shape.
Using said structure, it is in by the way that deflector one end is arranged into semicircle and semicircle towards gas pipeline one
Side, make its flue gas in the presence of deflector, the residence time is more long and with expanding the contact surface with deflector in heating space
Product, strengthen the heat transfer effect of deflector, it is improved the drying effect to coal ash.
In summary, the utility model has the advantages that：
1st, the hot gas produced by heat-producing unit is delivered in the heating space in housing, and the coal ash in cage is carried out
Dry, make its coal ash be not easy to be adhered on discharging tube wall, reduce and block probability, reach reduction staff and dredge stifled work, make it
Boiler can continuous service, improve the effect of operating efficiency；
2nd, by the way that high-temperature flue gas in burner hearth is delivered in the heating space of housing, coal ash is carried out using the high temperature of flue gas
Dry, reach the effect of energy-conservation.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment, shows overall structure；
Fig. 2 is the partial cutaway schematic of the present embodiment, shows housing interior structure；
Fig. 3 is the enlarged diagram at A in Fig. 2, shows the arrangement mode of deflector；
Fig. 4 is the partial structural diagram of the present embodiment, shows the attachment structure of gas pipeline and burner hearth；
Fig. 5 is the structural representation of prior art, shows overall structure.
In figure, 1, coal store；2nd, cage；21st, housing；22nd, motor；23rd, propeller；3rd, feeding pipe；4th, discharge
Pipe；5th, drying device；51st, burner hearth；52nd, space is heated；53rd, gas pipeline；54th, outlet pipe；6th, air-introduced machine；7th, screen pack；
8th, deflector.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of fuel delivery system with drying device, as illustrated in fig. 1 and 2, including coal store 1 and cage 2, cage 2
Including housing 21, the propeller being arranged in housing 21 23 and the motor 22 for driving the rotation of propeller 23, housing 21 1
End top offers charging aperture, other end lower section offers discharging opening, and coal store 1 passes through feeding pipe 3 and the charging aperture of housing 21
Coal ash is delivered in cage 2 by connection, and the charging aperture of housing 21 is connected by discharge nozzle 4 with burner hearth 51, and coal ash is delivered into burner hearth
Burnt in 51.
With reference to Fig. 1 and 2, a drying device 5 is additionally provided with cage 2, coal ash is dried by drying device 5, on
Stating drying device 5 includes heating space 52, heat-producing unit, gas pipeline 53 and outlet pipe that the inner hollow of housing 21 is formed
54, the one end of gas pipeline 53 connects the other end with heat-producing unit and connected with heating space 52, and the one end of outlet pipe 54, which is communicated in, to be added
Heat space 52, the hot gas for being produced heat-producing unit by gas pipeline 53 are delivered in heating space 52, then pass through housing
Coal ash is dried 21 heat transfer, and then hot gas is discharged by outlet pipe 54, its hot gas is endlessly entered
Enter into heating space 52 and be thermally dried.
Wherein, gas pipeline 53 is respectively arranged at the both sides of shell along its length with outlet pipe 54.
With reference to Fig. 1 and 2, wherein, heat-producing unit is arranged to burner hearth 51, air-introduced machine 6 is provided with gas pipeline 53, by drawing
High-temperature flue gas in burner hearth 51 is delivered in heating space 52 and is thermally dried by blower fan 6.
Reference picture 4, wherein, gas pipeline 53 is provided towards the one end of burner hearth 51 more than another with one end that burner hearth 51 connects
The truncated cone-shaped at end, and it is fixed with screen pack 7 on one end in burner hearth 51.
Reference picture 4, wherein, it is tilted towards burner hearth 51 that one end that gas pipeline 53 is in burner hearth 51 is arranged to upper end
Inclined-plane, screen pack 7 and the end face of gas pipeline 53.
With reference to Fig. 1 and 2, the other end of above-mentioned outlet pipe 54 connects with burner hearth 51, it is heated space 52 and burner hearth 51
Between realize flue gas recirculation.
Reference picture 3, heating 52 interior edge housing of space 21 length direction are staggeredly arranged at intervals with some deflectors 8, deflector 8
Relative heating inwall one end of space 52 forms semicircle towards the side coiling of gas pipeline 53.
Operation principle：Coal ash is entered in cage 2 by feeding pipe 3, then drives propeller 23 by motor 22
Coal ash is delivered to discharge outlet at charging aperture in driving cage 2, and burner hearth 51 is dropped into along discharge nozzle 4 under coal ash Action of Gravity Field
Inside burnt, while air-introduced machine 6 starts, and the part high-temperature flue gas in burner hearth 51 is delivered in housing 21 through gas pipeline 53
Heating space 52 in, it is rapid to improve the temperature of housing 21 under the water conservancy diversion and heat transfer process of flow-stopping plate, make it to cage 2
Interior coal ash is dried, and avoids coal ash from being adhered on discharge nozzle 4, reduces and blocks probability, heats the flue gas in space 52 with outlet
Pipeline 54 enters burner hearth 51 and reused, while screen pack 7 filters to flue gas, avoids dust from entering heating empty
Between in 52.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in the scope of protection of the utility model by Patent Law.
Claims (7)
1. a kind of fuel delivery system with drying device, including coal store (1) and cage (2), the cage (2) include shell
Body (21), housing (21) top one end, which is provided with below the charging aperture other end, is provided with discharging opening, and discharging opening goes out by one
Expects pipe (4) connects with burner hearth (51), is connected below coal store (1) by feeding pipe (3) with housing (21) charging aperture, its feature
It is：Also include a drying device (5) for being used to cage (2) interior coal ash be dried, the drying device (5) includes being used to give birth to
Heating space (52), one end and the heat-producing unit connection other end that the heat-producing unit of heat production gas, housing (21) inner hollow are formed
The gas pipeline (53) and outlet pipe (54) connected with heating space (52), described outlet pipe (54) one end are empty with heating
Between (52) connect.
2. a kind of fuel delivery system with drying device according to claim 1, it is characterized in that：The heat-producing unit
Burner hearth (51) is arranged to, is provided with the gas pipeline (53) for burner hearth (51) interior flue gas to be transported in into heating space (52)
Interior air-introduced machine (6).
3. a kind of fuel delivery system with drying device according to claim 2, it is characterized in that：The gas pipeline
(53) it is in the truncated conical shape for being more than the other end towards burner hearth (51) one end, gas pipeline (53) and stove that one end is connected with burner hearth (51)
Thorax (51) inwall, which connects, is provided with screen pack (7) on one end.
4. a kind of fuel delivery system with drying device according to claim 3, it is characterized in that：The gas pipeline
(53) heeling condition in burner hearth (51) interior one end in upper end towards burner hearth (51) inside, the screen pack (7) and appendix
The end face in road (53) is set.
5. a kind of fuel delivery system with drying device according to claim 2, it is characterized in that：The outlet pipe
(54) one end connects with burner hearth (51).
6. a kind of fuel delivery system with drying device according to claim 1-5 any one, it is characterized in that：Institute
State heating space (52) inside and be staggeredly arranged at intervals with some deflectors (8) along housing (21) length direction.
7. a kind of fuel delivery system with drying device according to claim 6, it is characterized in that：The deflector
(8) relative heating space (52) inwall one end forms semicircle towards gas pipeline (53) side coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902943.2U CN207035777U (en) | 2017-07-24 | 2017-07-24 | A kind of fuel delivery system with drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902943.2U CN207035777U (en) | 2017-07-24 | 2017-07-24 | A kind of fuel delivery system with drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207035777U true CN207035777U (en) | 2018-02-23 |
Family
ID=61461709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720902943.2U Expired - Fee Related CN207035777U (en) | 2017-07-24 | 2017-07-24 | A kind of fuel delivery system with drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207035777U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365729A (en) * | 2020-03-16 | 2020-07-03 | 杭州航民江东热电有限公司 | Fuel conveying system with drying device |
| CN111457394A (en) * | 2020-03-26 | 2020-07-28 | 兰祥波 | Boiler sludge blending combustion device |
| CN112268274A (en) * | 2020-12-10 | 2021-01-26 | 山东方大清洁能源科技有限公司 | DCS boiler equipment based on pulverized coal combustion |
-
2017
- 2017-07-24 CN CN201720902943.2U patent/CN207035777U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365729A (en) * | 2020-03-16 | 2020-07-03 | 杭州航民江东热电有限公司 | Fuel conveying system with drying device |
| CN111457394A (en) * | 2020-03-26 | 2020-07-28 | 兰祥波 | Boiler sludge blending combustion device |
| CN111457394B (en) * | 2020-03-26 | 2022-09-16 | 杭州蓝禾新能源工程技术有限公司 | Boiler sludge blending combustion device |
| CN112268274A (en) * | 2020-12-10 | 2021-01-26 | 山东方大清洁能源科技有限公司 | DCS boiler equipment based on pulverized coal combustion |
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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: 20180223 Termination date: 20190724 |