CN201706467U - Biomass fuel boiler - Google Patents
Biomass fuel boiler Download PDFInfo
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- CN201706467U CN201706467U CN2010202385006U CN201020238500U CN201706467U CN 201706467 U CN201706467 U CN 201706467U CN 2010202385006 U CN2010202385006 U CN 2010202385006U CN 201020238500 U CN201020238500 U CN 201020238500U CN 201706467 U CN201706467 U CN 201706467U
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- biomass fuel
- burner hearth
- fuel boiler
- furnace
- hearth
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Abstract
The utility model relates to a boiler for burning various biomass fuels to generate steam for steam supply and power generation. The utility model adopts the following technical scheme that: a biomass fuel boiler is characterized by comprising a steel frame and a hearth, wherein the hearth is installed on the steel frame, a boiler drum is installed above the hearth, a crossbeam type chain grate is arranged at the lower part of the hearth, the crossbeam type chain grate is directly supported on the steel frame, a slag discharging and ash discharging device is installed below the crossbeam type chain grate, a horizontal flue and a tail flue are arranged at a hearth outlet, and at least one set of feeding device and a spray sowing device are uniformly arranged in front of the boiler of the hearth along the width direction. By adopting the scheme, the utility model overcomes the deficiencies existing in the prior art and provides the novel biomass fuel boiler with low investment cost, short construction cycle and high burning efficiency.
Description
Technical field
The utility model relates to the various biomass fuels of a kind of burning, makes it to produce the boiler that steam is used for steam supply, generating.
Background technology
Along with improving constantly of constant development of economy and living standards of the people; energy supply day is becoming tight; strong by development and use aboundresources, recyclability, as to help improving environment and sustainable development biomass resource is the effective way that solves energy crisis, protection environment.In recent years, biomass power generation has obtained certain development.
Biomass power generation mainly is to utilize agricultural, forestry and industrial discarded object to be raw material, is converted into clean energy resource forms such as electric power.Utilize living beings to burn in boiler, the steam that is produced is used for generating or steam supply, and existing good social benefit has considerable economic again.Because various living beings profiles are different, composition is complicated, the existing mode that adopts chain grate boiler directly to burn usually.
Existing chain grate boiler, traveling-grate stoker load are by the carrying of basis, boiler room, and the boiler room must double-deckly be arranged.The civil engineering workload is big, the cost of investment height, and the construction period is long.
In order to promote biomass power generation better, especially the demand in the deficient area of adapted biomass aboundresources and building materials such as cement, so completely newly developed a kind of novel biomass fuel boiler, impel the timely drying of biomass fuel to catch fire with this, guarantee the biomass efficient burning, and, can reduce the civil engineering workload significantly, shorten the construction period, reduce cost of investment.
The utility model content
The utility model overcomes the deficiency that prior art exists, and the novel biomass fuel boiler that a kind of cost of investment is low, the construction period is short, efficiency of combustion is high is provided.
Realize above-mentioned purpose, the utility model adopts following technical scheme: a kind of biomass fuel boiler, it is characterized in that: include steelframe, be installed in the burner hearth on the steelframe, the top of burner hearth is equipped with drum, the lower disposed of burner hearth has crossbeam type chain-grate, crossbeam type chain-grate directly is bearing on the steelframe, be equipped with below the crossbeam type chain-grate and slag tap and ash discharging gear, furnace outlet is provided with horizontal flue and back-end ductwork, and the stokehold broad ways of burner hearth is arranged at least one cover charging gear and the device of sowing grass seeds by duster equably.
Further setting of the present utility model is: described furnace outlet lower edge is provided with furnace arch, furnace nose, and lower furnace portion is provided with face arch; The furnace arch, furnace nose top of described burner hearth is provided with high temperature superheater, is provided with medium temperature overheater and low temperature superheater in the described horizontal flue, and economizer and air preheater are set in the described back-end ductwork; Wall and face arch place are provided with secondary air channel behind the described burner hearth; Described charging gear includes star rotor and the anti-blocking spring that wear-resisting steel plate is made, and is provided with angle adjustment plate and damper in the described device of sowing grass seeds by duster, and angle adjustment plate adopts heat resisting cast steel; Pipe diameter is more than or equal to 60mm in the interior air preheater of described back-end ductwork; High temperature superheater, medium temperature overheater and low temperature superheater, economizer hand adopt along row and arrange; Described superheater, economizer place all arrange steam sootblower.
Adopt such scheme, the utlity model has following advantage:
1, changed the pattern of the load of conventional chains fire grate by the carrying of basis, boiler room, crossbeam type chain-grate directly is bearing on the boiler steelframe, the boiler room arranges that by bilayer changing individual layer into arranges, reduce the civil engineering workload thus, shorten the construction period, reduce cost of investment, especially be fit to the south east asia of building materials shortages such as cement.
2, according to the combustion characteristics of biomass fuel, face arch is set, guarantees the moisture content evaporation and the vaporization rapidly of fresh fuel, catch fire in time, burn in lower furnace portion.
3, the wall place is furnished with secondary air channel behind face arch and burner hearth, make full use of the effect of high speed secondary wind jet leader tape and propelling movement flue gas, strengthen the disturbance of flue gas, cause flue-gas swirl, the stroke of prolong smoke in stove, improve the degree of filling of gas stream in the stove, make biomass fuel completing combustion, fly ash combustible material reduces, and the needed oxygen of aftercombustion.
4, the biomass fuel feed adopts the star charging gear of brand-new design, in anti-blocking spring mechanism is arranged, guarantee smooth feeding.
5, biomass fuel sprays into burner hearth by the device of sowing grass seeds by duster, and in the process of sowing grass seeds by duster, a part of fines begins suspension combustion, and bulky grain is fallen on the fire grate and burnt away, combustion heat intensity height.Send out elegance and spray from the device of sowing grass seeds by duster with hot blast, its is on the one hand fuel sow grass seeds by duster equably burner hearth rear portion, the required oxygen of postcombustion suspension combustion part on the other hand.
6, in order to improve the degree of filling of furnace high-temperature flue gas, rear water wall is at furnace outlet lower edge outstanding furnace arch, furnace nose that forms in stove.
7, burner hearth is higher, guarantees that furnace outlet gas temperature is lower than ash fusion point, protects superheater effectively, prevents coking.
8, fire grate segment adopts heat-resisting cast iron, long service life in the crossbeam type chain-grate.
9, pipe adopts large-diameter pipe in the air preheater, is difficult for stifled ash.
Below in conjunction with accompanying drawing the utility model is further described:
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the charging gear structural representation among Fig. 1;
Fig. 3 is the apparatus structure schematic diagram of sowing grass seeds by duster among Fig. 1.
Among the figure: 1 is crossbeam type chain-grate, and 2 is drum, and 3 is burner hearth, and 4 is charging gear, 5 are the device of sowing grass seeds by duster, and 6 is furnace arch, furnace nose, and 7 is horizontal flue, and 8 is high temperature superheater, 9 is medium temperature overheater, and 10 is low temperature superheater, and 11 for slagging tap and ash discharge equipment, and 12 is back-end ductwork, 13 is economizer, and 14 is air preheater, and 15 is steam sootblower, and 16 is secondary air channel, 17 is steelframe and platform staircase, and 18 is face arch, and 19 is star rotor, 20 is anti-blocking spring, and 21 is angle adjustment plate, and 22 is damper.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of biomass fuel boiler, burner hearth 3 is installed on the steelframe 17, drum 2 is installed above burner hearth 3, lower disposed crossbeam type chain-grate 1 at burner hearth 3, crossbeam type chain-grate 1 directly is bearing on the boiler steelframe 17, and the charging gear 4 and the device 5 of sowing grass seeds by duster are installed on the front wall of burner hearth 3 bottoms, also can be the many cover charging gears 4 and the device 5 of sowing grass seeds by duster in the utility model embodiment.At burner hearth 3 outlet lower edges furnace arch, furnace nose 6 is set, sets gradually horizontal flue 7 and back-end ductwork 12 behind burner hearth 3, installation is slagged tap and ash discharge equipment 11 below crossbeam type chain-grate 1.High temperature superheater 8, medium temperature overheater 9 and low temperature superheater 10 are installed above furnace arch, furnace nose 6 and in the horizontal flue 7.Economizer 13 and air preheater 14 are set in the back-end ductwork 12.At burner hearth 3 lower disposed face arch 18, in addition, on face arch 18 and burner hearth 3 back walls, arrange secondary air channel 16.
In the utility model embodiment, star charging gear 4 has star rotor 19 and the anti-blocking spring 20 that wear-resisting steel plate makes to constitute, like this star rotor 19 rotations again the effect of the elastic force by anti-blocking spring 20 can guarantee smooth feeding.The device 5 of sowing grass seeds by duster is provided with angle adjustment plate 21 and damper 22 and is used for the fuel metering situation of sowing grass seeds by duster, and angle adjustment plate 21 adopts heat resisting cast steels, is used for the fuel metering angle of sowing grass seeds by duster, and damper 22 is used for controlling the air quantity size, and fuel is sowed grass seeds by duster in the burner hearth 3 equably.When boiler operatiopn, biomass fuel enters burner hearth 3 by the charging gear 4 and the device 5 of sowing grass seeds by duster, biomass fuel after burner hearth 3 internal combustion, the flue gas of generation flow through successively burner hearth 3, furnace arch, furnace nose 6, horizontal flue 7 and back-end ductwork 12.
In the utility model embodiment, on face arch 18 and burner hearth 3 back walls, arrange secondary air channel 16, can strengthen the disturbance of flue gas, cause flue-gas swirl, prolong smoke flow process, and the needed oxygen of aftercombustion; Rear water wall is provided with furnace arch, furnace nose 6 at burner hearth 3 outlet lower edges, has improved the degree of filling of furnace high-temperature flue gas greatly.Burner hearth 3 is highly higher, can guarantee that like this burner hearth 3 outlet cigarette temperature are lower than ash fusion point, prevents coking on the superheater tube wall, guarantees safe and reliable to operation.Superheater in furnace arch, furnace nose 6 tops and the horizontal flue 7 can be arranged according to actual instructions for use.When the parameter of steam is sub-high pressure time high temperature, then need to arrange high temperature superheater 8, medium temperature overheater 9 and low temperature superheater 10; When the parameter of steam is medium temperature and medium pressure, then need to arrange high temperature superheater 8 and low temperature superheater 10; When the parameter of steam is low-temp low-pressure, only need to arrange low temperature superheater 10; When being saturated stove, then need not arrange superheater.Pipe adopts the large-diameter pipe of diameter more than or equal to 60mm in the air preheater 14, is difficult for stifled ash; Fire grate segment adopts heat-resisting cast iron, long service life in the crossbeam type chain-grate 1; Superheater, economizer 13 pipe rows adopt along row and arrange that therefore the space between pipe row is bigger, is convenient to deashing.All arrange steam sootblower 15 at superheater, economizer 13 places, can in time remove coking and dust stratification on the heating surface, do not influence the heat transfer of each heating surface.
Claims (8)
1. biomass fuel boiler, it is characterized in that: include steelframe, be installed in the burner hearth on the steelframe, the top of burner hearth is equipped with drum, the lower disposed of burner hearth has crossbeam type chain-grate, and crossbeam type chain-grate directly is bearing on the steelframe, is equipped with below the crossbeam type chain-grate and slags tap and ash discharging gear, furnace outlet is provided with horizontal flue and back-end ductwork, and the stokehold broad ways of burner hearth is arranged at least one cover charging gear and the device of sowing grass seeds by duster equably.
2. biomass fuel boiler according to claim 1 is characterized in that: described furnace outlet lower edge is provided with furnace arch, furnace nose, and lower furnace portion is provided with face arch.
3. biomass fuel boiler according to claim 1 and 2, it is characterized in that: the furnace arch, furnace nose top of described burner hearth is provided with high temperature superheater, be provided with medium temperature overheater and low temperature superheater in the described horizontal flue, economizer and air preheater are set in the described back-end ductwork.
4. biomass fuel boiler according to claim 1 and 2 is characterized in that: wall and face arch place are provided with secondary air channel behind the described burner hearth.
5. biomass fuel boiler according to claim 1 and 2, it is characterized in that: described charging gear includes star rotor and the anti-blocking spring that wear-resisting steel plate is made, be provided with angle adjustment plate and damper in the described device of sowing grass seeds by duster, angle adjustment plate adopts heat resisting cast steel.
6. biomass fuel boiler according to claim 3, it is characterized in that: described charging gear includes star rotor and the anti-blocking spring that wear-resisting steel plate is made, be provided with angle adjustment plate and damper in the described device of sowing grass seeds by duster, angle adjustment plate adopts heat resisting cast steel.
7. biomass fuel boiler according to claim 3 is characterized in that: pipe diameter is more than or equal to 60mm in the interior air preheater of back-end ductwork; High temperature superheater, medium temperature overheater and low temperature superheater, economizer hand adopt along row and arrange.
8. biomass fuel boiler according to claim 3 is characterized in that: all arrange steam sootblower at superheater, economizer place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202385006U CN201706467U (en) | 2010-06-23 | 2010-06-23 | Biomass fuel boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202385006U CN201706467U (en) | 2010-06-23 | 2010-06-23 | Biomass fuel boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201706467U true CN201706467U (en) | 2011-01-12 |
Family
ID=43443626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202385006U Expired - Lifetime CN201706467U (en) | 2010-06-23 | 2010-06-23 | Biomass fuel boiler |
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| Country | Link |
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| CN (1) | CN201706467U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858589A (en) * | 2010-06-23 | 2010-10-13 | 伟明环保设备有限公司 | Biomass fuel boiler |
| CN102788341A (en) * | 2012-08-03 | 2012-11-21 | 无锡华光锅炉股份有限公司 | Arrangement structure of heating face of blast furnace gas boiler |
| CN104279547A (en) * | 2014-10-21 | 2015-01-14 | 广州优的新能源科技有限公司 | High-moisture fuel fired steam boiler |
-
2010
- 2010-06-23 CN CN2010202385006U patent/CN201706467U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858589A (en) * | 2010-06-23 | 2010-10-13 | 伟明环保设备有限公司 | Biomass fuel boiler |
| CN102788341A (en) * | 2012-08-03 | 2012-11-21 | 无锡华光锅炉股份有限公司 | Arrangement structure of heating face of blast furnace gas boiler |
| CN104279547A (en) * | 2014-10-21 | 2015-01-14 | 广州优的新能源科技有限公司 | High-moisture fuel fired steam boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |