CN205316300U - Vertical boiler of formula of putting under powder combustor - Google Patents
Vertical boiler of formula of putting under powder combustor Download PDFInfo
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- CN205316300U CN205316300U CN201620028842.2U CN201620028842U CN205316300U CN 205316300 U CN205316300 U CN 205316300U CN 201620028842 U CN201620028842 U CN 201620028842U CN 205316300 U CN205316300 U CN 205316300U
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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
Abstract
The utility model discloses a vertical boiler of formula of putting under powder combustor, the powder combustor of being connected including the boiler body of vertical structure, with boiler body, the powder combustor for the low nitrogen powder combustor of slag -tap formula, the low nitrogen powder combustor of slag -tap formula sets up in boiler body bottom one side, be the transversal arrangement structure, be equipped with into coal end, link, the link passes through the flange to be connected with boiler body's preceding wall, advance the coal end through defeated powder tuber pipe once respectively with the buggy storehouse with fail whitewashed fan and be connected, the low nitrogen powder combustor of slag -tap formula is held to the link and is equipped with once defeated powder tuber pipe, the combustion -supporting tuber pipe of secondary oxygen boosting, cubic hypoxemia backward flow tuber pipe and the combustion -supporting tuber pipe of quartic from advancing the coal, and the bottom is equipped with the cinder notch, and the below of the cinder notch that falls is equipped with receives the pulp water groove. The utility model discloses optimized vertical boiler's structure and burning behavior, solved the current horizontal boiler's of standing combustor arrangement form and arranged the problem that the sediment form exists.
Description
Technical field
This utility model relates to vertical boiler, specifically the vertical boiler of a kind of powder combustor underneath type.
Background technology
At present, the conventionally used deslagging mode of pulverized-coal fired boiler mostly is dry ash extraction, although part boiler can realize solving coking and the big problem of formation of nitrogen oxides, but majority is all realized by the mode of control flame temperature, it is low that this results in fire box temperature, radiation heat transfer intensity is low, the problem that boiler steel quantity consumption is big. And the mode of dry ash extraction, the easy dust stratification in boiler convection tube bank position, affect heat convection. Furthermore, the sack cleaner that most flyash are both needed to by boiler rear portion is arranged is collected, and sack cleaner workload is big, affects the service life of cleaner unit.
In view of this, arrangement of burner and the deslagging form Problems existing thereof of existing vertical boiler are being improved.
Utility model content
This utility model aims to solve the problem that the problems referred to above that prior art exists, and provides the structure of a kind of complex optimum vertical boiler and the vertical boiler of the powder combustor underneath type of combustibility.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of vertical boiler of powder combustor underneath type, including the powder combustor that the boiler body of vertical structure is connected with boiler body, described powder combustor is the low nitrogen powder combustor of slag tap formula, the low nitrogen powder combustor of slag tap formula is arranged on boiler body bottom side, in lateral arrangement structure, being provided with coal-feeding end, link, link is connected with the front wall of boiler body by flange, and coal-feeding end is connected with Pulverized Coal Bin and defeated powder blower fan respectively by once defeated powder airduct; Slag tap formula low nitrogen powder combustor is provided with once defeated powder airduct, secondary oxygen-rich combustion-supporting airduct, three hypoxia backflow airducts and four combustion-supporting airducts from coal-feeding end to link, and bottom is provided with cinder notch, and being connected with of the cinder notch that falls receives slag bath.
Adopting this utility model of technique scheme, compared with prior art, it provides the benefit that:
By adopting the low nitrogen powder combustor of slag tap formula of underlying transverse arrangement, high-temperature region oxygen deprivation, combustion air classification afterburning can be realized and burn completely and slag tap, thus efficiently solve easily coking in boiler furnace, the various problems such as boiler steel quantity consumption is big, radiation heat transfer intensity is low, the easy dust stratification of convection bank, formation of nitrogen oxides are big and the sack cleaner life-span is low, deslagging is collected by receiving slag bath, the waste residue pollution to environment can be reduced, thus make the low nitrogen powder combustor of slag tap formula be able to be carried out on vertical boiler; The low nitrogen powder combustor of slag tap formula adapts to the ability of coal and is remarkably enhanced, it is possible to adapting to the coal dust of low heat value, low ash smelting point, after burning, the temperature of flue gas can reach 1500 DEG C, it is possible to reduce the steel quantity consumption of Boiler radiation heating surface; Thus the amount of dust in burner hearth reduces, it is possible to strengthen the heat transfer efficiency of convection bank.
As preferably, this utility model further technical scheme is:
Ash port bottom burner hearth bottom ash port and convection bank it is provided with bottom described boiler body. Enter a small amount of lime-ash entrained in the flue gas in vertical boiler burner hearth, 40%-60% will be had to pass through ash port bottom burner hearth bottom ash port and convection bank and discharge, and reduce the workload of sack cleaner further.
The discharging oral area of described once defeated powder airduct is provided with duff pipe guiding device; To realize adjusting defeated powder angle within the scope of 60 °-90 °, improve the coal dust firing uniformity.
The air outlet place of described secondary oxygen-rich combustion-supporting airduct, three hypoxia backflow airducts and four combustion-supporting airducts is respectively equipped with oxygen enrichment wind spinning disk, backflow wind spinning disk and combustion air spinning disk, and oxygen enrichment wind spinning disk, backflow wind spinning disk and combustion air spinning disk drive by motor; By above-mentioned setting, can conveniently regulate airduct endogenous wind and enter the angle of the low nitrogen powder combustor of slag tap formula, can also effectively control diameter and the length of flame, fully burn in time in the heat-accumulating area making the refractory material of the low nitrogen powder combustor of slag tap formula, ensure that the purpose discharged in liquid form by flyash, also can realize the stable regulation of boiler load.
The air inlet of three times described hypoxia backflow airducts is connected with wind mixed chamber, and wind mixed chamber is connected by mixing wind tube and four combustion-supporting airducts, and mixing wind tube is provided with volume damper, and wind mixed chamber connects useless smoke backflow pipe; By above-mentioned setting, backflow flue gas is mixed with four combustion airs of part in mixed negative room, and the oxygen content of the gas in three hypoxia backflow airducts of volume damper regulable control is 5%.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment;
Fig. 2 is the structural representation of the low nitrogen powder combustor of slag tap formula;
Description of reference numerals: 1-Pulverized Coal Bin; The defeated powder blower fan of 2-; The low nitrogen powder combustor of 3-slag tap formula; 4-boiler body; Duff pipe of 21-; The defeated powder airduct of 31-; 32-secondary oxygen-rich combustion-supporting airduct; Tri-hypoxia backflow airducts of 33-; Tetra-combustion-supporting airducts of 34-; 35-falls cinder notch; 36-receives slag bath; 37-adpting flange; 41-burner hearth bottom ash port; Ash port bottom 42-convection bank.
Detailed description of the invention
This utility model is further elaborated by the embodiment provided below in conjunction with accompanying drawing, but this utility model is not constituted any restriction by embodiment.
Referring to Fig. 1, Fig. 2, the vertical boiler of a kind of powder combustor underneath type, slag tap formula low nitrogen powder combustor 3 boiler body 4 of the vertical structure connected with the low nitrogen powder combustor 3 of slag tap formula forms; Slag tap formula powder combustor 3 is provided with coal-feeding end, link, and link is fixed on the front wall of boiler body 4 bottom by adpting flange 37; Slag tap formula low nitrogen powder combustor 3 is provided with once defeated powder airduct 31,32, three hypoxia backflow airducts 33 of secondary oxygen-rich combustion-supporting airduct and four combustion-supporting airducts 34 from coal-feeding end to link; The coal-feeding end of slag tap formula low nitrogen powder combustor 3 is connected with Pulverized Coal Bin 1 by once defeated powder airduct 31, and once defeated powder airduct 31 is provided with defeated powder blower fan 2, and once defeated powder airduct 31 and defeated powder blower fan 2 can realize automatic charging in utilization; Ash port 42 bottom burner hearth bottom ash port 41 and convection bank it is provided with bottom boiler body 4.
Once the discharging opening of defeated powder airduct 31 is provided with the guiding device of duff pipe 21. The adjustment angular range of guiding device is at 60 °-90 °. Pass through guiding device, it is possible to make once the coal dust that the discharging opening of defeated powder airduct 31 exports be uniformly distributed, improve the combustion even degree of coal dust.
Be provided with cinder notch 35 bottom the low nitrogen powder combustor 3 of slag tap formula, the cinder notch 35 that falls be connected with receive slag bath 36. The lime-ash of the coal dust firing cinder notch 35 that can pass through to fall is discharged, and is collected by receiving slag bath 36, reduces the waste residue pollution to environment.
The air outlet place of 32, three hypoxia backflow airducts 33 of secondary oxygen-rich combustion-supporting airduct and four combustion-supporting airducts 34 is respectively equipped with oxygen enrichment wind spinning disk, backflow wind spinning disk and combustion air spinning disk, and oxygen enrichment wind spinning disk, backflow wind spinning disk and combustion air spinning disk drive by motor. The adjustment angular range of oxygen enrichment wind spinning disk is at 0 °-90 °, and the adjustment angular range of backflow wind spinning disk is at 0 °-90 °, and the adjustment angular range of combustion air spinning disk is at 0 °-90 °. By above-mentioned setting, can conveniently regulate airduct endogenous wind and enter the angle of the low nitrogen powder combustor 3 of slag tap formula, can also effectively control diameter and the length of flame, fully burn in time in the heat-accumulating area making the refractory material of the low nitrogen powder combustor 3 of slag tap formula, ensure that the purpose discharged in liquid form by flyash, also can realize the stable regulation of boiler load.
The air inlet of three hypoxia backflow airducts 33 is connected with wind mixed chamber, and wind mixed chamber is connected by mixing wind tube and four combustion-supporting airducts 34, and mixing wind tube is provided with volume damper, and wind mixed chamber connects useless smoke backflow pipe. By above-mentioned setting, backflow flue gas is mixed with four combustion airs of part in mixed negative room, and the oxygen content of the gas in three hypoxia backflow airducts 33 of volume damper regulable control is 5%. The Main Function of three hypoxia backflow wind is to maintain between 1400-1500 DEG C by flue-gas temperature, reduces the temperature of high-temperature region, to protect the refractory material within the low nitrogen powder combustor 3 of slag tap formula.
The work process of this device is as follows:
During boiler combustion, the gas of coal dust and once defeated powder airduct 31 forms gas-solid mixture and sends into the low nitrogen powder combustor 3 of slag tap formula, mixes with the wind of secondary oxygen-rich combustion-supporting airduct 32 blowout rapidly, in the heat-accumulating area flash fire of refractory material; The oxygen enrichment wind that wind is oxygen content 25% of secondary oxygen-rich combustion-supporting airduct 32 blowout, and in secondary oxygen-rich combustion-supporting airduct 32, overall oxygen content only accounts for the 85% of burning total oxygen demand, it is achieved that the anoxycausis state of high-temperature region;Flame, when burning in high-temperature region, is blown, by three hypoxia backflow airducts 33, the hypoxia backflow wind adding oxygen content 5%; Can effectively control flue-gas temperature and maintain between 1400-1500 DEG C, thus reduce again the temperature of high-temperature region; Flame is in the process of rearward movement, and four times combustion-supporting airduct 34 is dried, and makes CO imperfect combustion in flue gas realize burning completely. Owing to fine coal fusion point of ash is 1180 DEG C, in the low nitrogen powder combustor 3 of slag tap formula under the high temperature of 1400-1500 DEG C, reach melted state, discharged by the cinder notch 35 that falls bottom the low nitrogen powder combustor 3 of slag tap formula, fallen in receipts slag bath 36; The high-temperature flue gas carrying a small amount of lime-ash sprays from the low nitrogen powder combustor 3 of slag tap formula, enter in vertical boiler burner hearth, strong radiation heat transfer is carried out with water-cooling wall, the a small amount of lime-ash carried in flue gas has again 40%-60% to pass through ash port 42 bottom burner hearth bottom ash port 41 and convection bank to discharge, and reduces the workload of sack cleaner further.
The foregoing is only the embodiment that this utility model is preferably feasible, not thereby interest field of the present utility model is limited to, the equivalent structure change that all utilization this utility model description and accompanying drawing content are made, is both contained within interest field of the present utility model.
Claims (5)
1. the vertical boiler of a powder combustor underneath type, including the powder combustor that the boiler body of vertical structure is connected with boiler body, it is characterized in that: described powder combustor is the low nitrogen powder combustor of slag tap formula, the low nitrogen powder combustor of slag tap formula is arranged on boiler body bottom side, in lateral arrangement structure, it is provided with coal-feeding end, link, link is connected with the front wall of boiler body by flange, and coal-feeding end is connected with Pulverized Coal Bin and defeated powder blower fan respectively by once defeated powder airduct; Slag tap formula low nitrogen powder combustor is provided with once defeated powder airduct, secondary oxygen-rich combustion-supporting airduct, three hypoxia backflow airducts and four combustion-supporting airducts from coal-feeding end to link, and bottom is provided with cinder notch, and being connected with of the cinder notch that falls receives slag bath.
2. the vertical boiler of powder combustor underneath type according to claim 1, it is characterised in that: it is provided with ash port bottom burner hearth bottom ash port and convection bank bottom described boiler body.
3. the vertical boiler of powder combustor underneath type according to claim 1, it is characterised in that: the discharging oral area of described once defeated powder airduct is provided with duff pipe guiding device.
4. the vertical boiler of powder combustor underneath type according to claim 1, it is characterized in that: the air outlet place of described secondary oxygen-rich combustion-supporting airduct, three hypoxia backflow airducts and four combustion-supporting airducts is respectively equipped with oxygen enrichment wind spinning disk, backflow wind spinning disk and combustion air spinning disk, and oxygen enrichment wind spinning disk, backflow wind spinning disk and combustion air spinning disk drive by motor.
5. the vertical boiler of powder combustor underneath type according to claim 1, it is characterized in that: the air inlet of three times described hypoxia backflow airducts is connected with wind mixed chamber, wind mixed chamber is connected by mixing wind tube and four combustion-supporting airducts, mixing wind tube is provided with volume damper, and wind mixed chamber connects useless smoke backflow pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028842.2U CN205316300U (en) | 2016-01-13 | 2016-01-13 | Vertical boiler of formula of putting under powder combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028842.2U CN205316300U (en) | 2016-01-13 | 2016-01-13 | Vertical boiler of formula of putting under powder combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205316300U true CN205316300U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620028842.2U Active CN205316300U (en) | 2016-01-13 | 2016-01-13 | Vertical boiler of formula of putting under powder combustor |
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| Country | Link |
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| CN (1) | CN205316300U (en) |
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2016
- 2016-01-13 CN CN201620028842.2U patent/CN205316300U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 064400 No. 655, science and technology road, hi tech Industrial Development Zone, Tangshan City, Hebei, Qian'an Patentee after: TANGSHAN JINSHA COMBUSTION HEAT ENERGY CO.,LTD. Address before: 064400 No. 655, science and technology road, Qian'an hi tech Industrial Development Zone, Hebei, Tangshan City, China Patentee before: TANGSHAN GOLD SAND COMBUSTION ENERGY TECHNOLOGY CO.,LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Vertical boiler with powder burner Effective date of registration: 20210624 Granted publication date: 20160615 Pledgee: Bank of China Limited Qian'an Branch Pledgor: TANGSHAN JINSHA COMBUSTION HEAT ENERGY Co.,Ltd. Registration number: Y2021990000552 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221111 Granted publication date: 20160615 Pledgee: Bank of China Limited Qian'an Branch Pledgor: TANGSHAN JINSHA COMBUSTION HEAT ENERGY CO.,LTD. Registration number: Y2021990000552 |