CN203464257U - Double-fuel boiler - Google Patents
Double-fuel boiler Download PDFInfo
- Publication number
- CN203464257U CN203464257U CN201320579235.1U CN201320579235U CN203464257U CN 203464257 U CN203464257 U CN 203464257U CN 201320579235 U CN201320579235 U CN 201320579235U CN 203464257 U CN203464257 U CN 203464257U
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- CN
- China
- Prior art keywords
- charging gear
- fire grate
- grate
- burner hearth
- fuel boiler
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Solid-Fuel Combustion (AREA)
Abstract
The utility model provides a double-fuel boiler. With the adoption of the double-fuel boiler, poor-quality coal can be combusted and utilized in an industrial boiler so that the reasonable utilization of energy sources is ensured. The double-fuel boiler comprises a hearth, a grate firing feeding device, a fire grate, a coal economizer, an air pre-heater and a convection bank, wherein the fire grate is arranged below the hearth; the grate firing feeding device leads to the fire grate and the convection bank is distributed in a rear part flue in the hearth. The double-fuel boiler is characterized in that a feeding opening is formed in the front wall of the hearth; a suspended feeding device is arranged obliquely and leads to the feeding opening; an air pipe of a feeding air device is arranged towards the tail end of the lower part of the suspended feeding device; the feeding opening is located above the fire grate; the position of the suspended feeding device is higher than that of the grate firing feeding device.
Description
Technical field
The utility model relates to the technical field of boiler structure, is specially a kind of double fuel boiler.
Background technology
China Shi Yige coal big country, but high-quality coal occupation rate is fewer, and most of high-quality coal is all as electric coal, and what Industrial Boiler used is mostly general coal, if burning low grade coal kind is more difficult.Existing Industrial Boiler cannot burning low grade coal kind, and these energy can not rationally be utilized.
Summary of the invention
For the problems referred to above, the utility model provides a kind of double fuel boiler, and it makes coal inferior in the utilization of Industrial Boiler internal combustion, to have guaranteed the reasonable utilization of the energy.
A kind of double fuel boiler, its technical scheme is such: it comprises burner hearth, grate firing charging gear, fire grate, economizer, air preheater, convection bank, the below of described burner hearth is provided with described fire grate, described grate firing charging gear leads to described fire grate, in rear portion flue in described burner hearth, be furnished with convection bank, it is characterized in that: the front wall displacement of described burner hearth has material inlet, suspension charging gear is in tilted layout, and lead to described material inlet, the airduct of feed wind apparatus is towards the lower end of described suspension charging gear, described material inlet is positioned at the top position of described fire grate, the position of described suspension charging gear is higher than described grate firing charging gear.
It is further characterized in that:
In the rear vertical gas pass of described burner hearth, be furnished with in turn described economizer, air preheater, the outlet of described air preheater is communicated with deduster import;
Described airduct level is to layout, and described airduct and described suspension charging gear angulation are α;
In the burner hearth of the top of described fire grate, the lower position of material inlet, be furnished with Secondary Air structure;
The inside of described feed wind apparatus is provided with air quantity controllable register.
Adopt after the utility model, coal inferior falls on fire grate and burns through grate firing charging gear, and another part fuel enters burner hearth by suspension charging gear and burns.Grate firing fuel, slurry fuels enter the flue gas that produces after hearth combustion and after the flue at burner hearth rear portion is introduced air-introduced machine, enter chimney and enter atmosphere.The position of suspension charging gear is higher than grate firing charging gear, and material inlet is positioned at the top position of described fire grate, can make so a part of slurry fuels burn in burner hearth, another part does not burn fuel and drops on fully burning on fire grate, its coal inferior on can combustion-supporting fire grate, and suspension charging gear can be used by supporting feed wind apparatus together, feed wind not only can make fuel blow to burner hearth to burn, and the feed pipe of the cooling suspension charging gear of energy, and prevent fuel generation tempering phenomenon in feed pipe, in combustion process, slurry fuels are lighted by fire grate grate, the thermal-flame that burning forms has improved fire box temperature, for the fuel fire on fire grate provides abundant thermal source, greatly improved the ignition condition of fresh fuel on fire grate, simultaneously, the grate of smooth combustion is again the reliable thermal source that slurry fuels catch fire, can guarantee slurry fuels stable catching fire in time, it is good that it has not only retained grate furnace load adaptability, Load Regulation is advantage easily, but also has advantages of that coal adaptability is good, efficiency of combustion is high, thereby makes boiler in the changeable special burning low grade coal situation of load, all can reach stability and high efficiency burning, it makes coal inferior in the utilization of Industrial Boiler internal combustion, to have guaranteed the reasonable utilization of the energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is air quantity controllable register structural representation of the present utility model.
The specific embodiment
See Fig. 1, it comprises burner hearth 1, grate firing charging gear 2, fire grate 3, economizer 4, air preheater 5, convection bank 6, the below of burner hearth 1 is provided with fire grate 3, grate firing charging gear 2 leads to fire grate 3, in rear portion flue in burner hearth 1, be furnished with convection bank 6, the front wall displacement of burner hearth 1 has material inlet 7, suspension charging gear 8 is in tilted layout and leads to material inlet 7, the airduct 10 of feed wind apparatus 9 is towards the lower end of suspension charging gear 8, material inlet 7 is positioned at the top position of fire grate 3, and the position of suspension charging gear 8 is higher than grate firing charging gear 2.
In the rear vertical gas pass of burner hearth 1, be furnished with in turn economizer 4, air preheater 5, the outlet of air preheater 5 is communicated with the import of deduster 11;
Airduct 10 levels are to layout, and airduct 10 and suspension charging gear 8 angulations are α, guarantee to make fuel to fall smoothly, be blown into burner hearth 1 carry out suspension combustion and fall on fire grate 3, carrying out grate firing burning through feed wind wind-force;
In the burner hearth 0 of the lower position of the top of fire grate 1, material inlet 7, be furnished with Secondary Air structure 12, Secondary Air, to disturbance gas stream in the stove, is strengthened gas and is mixed with obvious effect, can improve the thermal efficiency of boiler;
See Fig. 2, the inside of feed wind apparatus 9 is provided with air quantity controllable register 13, and it can periodically change and make slurry fuels send out the expanded range of fire grate according to payload, plays fuel is burnt and combustion stablized effect.
Claims (5)
1. a double fuel boiler, it comprises burner hearth, grate firing charging gear, fire grate, economizer, air preheater, convection bank, the below of described burner hearth is provided with described fire grate, described grate firing charging gear leads to described fire grate, in rear portion flue in described burner hearth, be furnished with convection bank, it is characterized in that: the front wall displacement of described burner hearth has material inlet, suspension charging gear is in tilted layout, and lead to described material inlet, the airduct of feed wind apparatus is towards the lower end of described suspension charging gear, described material inlet is positioned at the top position of described fire grate, the position of described suspension charging gear is higher than described grate firing charging gear.
2. a kind of double fuel boiler according to claim 1, is characterized in that: in the rear vertical gas pass of described burner hearth, be furnished with in turn described economizer, air preheater, the outlet of described air preheater is communicated with deduster import.
3. a kind of double fuel boiler according to claim 1, is characterized in that: described airduct level is to layout, and described airduct and described suspension charging gear angulation are α.
4. a kind of double fuel boiler according to claim 1, is characterized in that: in the burner hearth of the top of described fire grate, the lower position of material inlet, be furnished with Secondary Air structure.
5. a kind of double fuel boiler according to claim 1, is characterized in that: the inside of described feed wind apparatus is provided with air quantity controllable register.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579235.1U CN203464257U (en) | 2013-09-18 | 2013-09-18 | Double-fuel boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579235.1U CN203464257U (en) | 2013-09-18 | 2013-09-18 | Double-fuel boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203464257U true CN203464257U (en) | 2014-03-05 |
Family
ID=50176621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320579235.1U Expired - Fee Related CN203464257U (en) | 2013-09-18 | 2013-09-18 | Double-fuel boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203464257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486571A (en) * | 2013-09-18 | 2014-01-01 | 江苏太湖锅炉股份有限公司 | Double fuel boiler |
-
2013
- 2013-09-18 CN CN201320579235.1U patent/CN203464257U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486571A (en) * | 2013-09-18 | 2014-01-01 | 江苏太湖锅炉股份有限公司 | Double fuel boiler |
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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 |
Granted publication date: 20140305 Termination date: 20140918 |
|
| EXPY | Termination of patent right or utility model |