CN203384958U - Carbon black burning tail gas boiler - Google Patents
Carbon black burning tail gas boiler Download PDFInfo
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- CN203384958U CN203384958U CN201320291365.5U CN201320291365U CN203384958U CN 203384958 U CN203384958 U CN 203384958U CN 201320291365 U CN201320291365 U CN 201320291365U CN 203384958 U CN203384958 U CN 203384958U
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- temperature
- low
- air preheater
- economizer
- carbon black
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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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Abstract
A carbon black burning tail gas boiler relates to gas boilers and solves the technical problems of low hot air temperature and unstable burning of the existing carbon black tail gas boiler. The carbon black burning tail gas boiler is formed by burners, a hearth, a slag solidifying pipe, a high-temperature overheater, a low-temperature overheater, a convection bank, a high-temperature coal economizer, a low-temperature coal economizer, a high-temperature air preheater, a middle-temperature air preheater and a low-temperature air preheater; the burners are arranged in four corners of a burning chamber at the lower part of the hearth in a round-tangential mode; the slag solidifying pipe, the high-temperature overheater, the low-temperature overheater and the convection bank are sequentially arranged in a horizontal flue; the high-temperature coal economizer, the high-temperature air preheater, the low-temperature coal economizer, the middle-temperature air preheater and the low-temperature air preheater are sequentially arranged in a vertical shaft tail flue; the two levels of coal economizers and the three levels of air preheaters are arranged in a crossing mode. The carbon black burning tail gas boiler is used for a boiler utilizing carbon black tail gas, and has the advantages of high hot air temperature, stable burning and easy volume and parameter expansion.
Description
Technical field
The utility model belongs to the boiler plant technical field, is specifically related to a kind of boiler that utilizes carbon black tail gas.
Background technology
Carbon black tail gas is the byproduct of carbon black process, low (the about 3000KJ/Nm of its calorific value
3), moisture is up to 39%, and difficulty is caught fire and poor combustion stability.Carbon black tail gas contains poisonous and harmful, the flammable explosive gas such as carbon monoxide, hydrogen sulfide, sulfur dioxide, sulfur trioxide, hydrogen.
The existing published boiler that utilizes carbon black tail gas, burner hearth mostly is two barrel structures, has limited the development of boiler capacity and parameter; Air preheater mostly is the main air preheater, and hot blast temperature is low, is unfavorable for catching fire and smooth combustion of carbon black tail gas; Combustion chamber mostly is insulated combustion chamber, and the refractory material consumption is large, and thermal loss is more.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes prior art, and a kind of combustion boiler with tailed is provided, the technical problem that solve that combustion boiler with tailed hot blast temperature at present is low, combustion instability, capacity and parameter is difficult for expansion.
The utility model is achieved through the following technical solutions:
A kind of combustion boiler with tailed, comprise; Burner, burner hearth, crust block pipe, high temperature superheater, low temperature superheater, convection bank, high-temperature economizer, low-level (stack-gas) economizer and air preheater; Described burner is positioned at the lower furnace portion combustion chamber, and described crust block pipe is positioned at the furnace outlet place, and described crust block pipe, high temperature superheater, low temperature superheater, convection bank are arranged in horizontal flue successively; Described high-temperature economizer, low-level (stack-gas) economizer and air preheater are arranged in tail vertical well gas flue; It is characterized in that: described burner is a kind of high-power low heat value Dual-cyclone combustor, is circle of contact direction and is arranged on four jiaos of lower furnace portion combustion chambers; Described burner hearth surrounding is provided with fin panel casing, and forward and backward water-cooling wall is to closing waist in burner hearth, and all heating surfaces in combustion chamber block with refractory material; Described convection bank is arranged in the high temperature superheater back, is provided with special down-comer and steam guiding tube; Described air preheater divides three grades: high-temperature air preheater, middle warm air preheater and low-temperature air preheater, high-temperature economizer, high-temperature air preheater, low-level (stack-gas) economizer, middle warm air preheater, low-temperature air preheater successively arranged crosswise in tail vertical well gas flue, described low-temperature air preheater adopts outer plating enamel pipe, is horizontal layout.
The substantive distinguishing features that the utility model is outstanding and significant effect are:
The utility model is because the burner hearth surrounding is provided with fin panel casing, forward and backward water-cooling wall is to closing waist in burner hearth, form the semi-open type combustion chamber, the all heating surfaces in combustion chamber are blocked with refractory material simultaneously, form adiabatic semi-open type combustion chamber, good seal performance, chamber temperature can reach 1100 ℃, guarantees the carbon black fine particle dust completing combustion in carbon black tail gas; Because furnace roof adopts the membrane wall ceiling, the castable refractory use amount is few, has shortened construction period and has reduced difficulty of construction; Owing to adopting high-power low heat value Dual-cyclone combustor, guarantee carbon black tail gas smooth combustion, not de-fire; Due to the layout that adopts the convection current steam-generating bank, made up the heat absorption deficiency of burner hearth, reduced again the boiling degree of economizer, increased security, the reliability of water circulation; Layout owing to adopting three grades of air preheaters, improved hot blast temperature, avoided again cold end corrosion.
The utility model is for utilizing the boiler of carbon black tail gas, has that hot blast temperature is high, flameholding, capacity and parameter expansion be easy to advantage.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Below in conjunction with accompanying drawing, by embodiment, the utility model is further illustrated.
The specific embodiment
As shown in Figure 1, a kind of combustion boiler with tailed, by burner 1, burner hearth 2, crust block pipe 3, high temperature superheater 4, low temperature superheater 5, convection bank 6, high-temperature economizer 7, high-temperature air preheater 8, low-level (stack-gas) economizer 9, in warm air preheater 10 and low-temperature air preheater 11 form; Described burner 1 is circle of contact direction and is arranged on four jiaos of burner hearth 2 lower combustion chamber, and crust block pipe 3, high temperature superheater 4, low temperature superheater 5, convection bank 6 are arranged in horizontal flue successively; High-temperature economizer 7, high-temperature air preheater 8, low-level (stack-gas) economizer 9, middle warm air preheater 10, low-temperature air preheater 11 are arranged in tail vertical well gas flue successively, two-stage economizer and three grades of air preheater arranged crosswise.
Described burner 1 adopts the patented technology (patent No.: 201120034667) of " a kind of high-power low heat value Dual-cyclone combustor ", because this burner is double-cyclone, coal gas is contrary with the air rotation direction, mixing moment completes, flame is short, and power is large, is particularly suitable for the low calorie fuels such as carbon black tail gas, can guarantee the smooth combustion of carbon black tail gas, not de-fire; Described burner is quadrangle tangential circle to be arranged, the flue gas limit rises on the rotation limit, and the burner of four jiaos can ignite mutually.
Described burner hearth 2 surroundings are provided with fin panel casing, and forward and backward water-cooling wall, to closing waist in burner hearth, forms the semi-open type combustion chamber, all heating surfaces in combustion chamber is blocked with refractory material simultaneously, forms adiabatic semi-open type combustion chamber.
Described convection bank 6 is arranged in high temperature superheater 4 back, it is provided with special down-comer and steam guiding tube, guarantees that its safe water circulation is reliable, and the layout of convection bank has made up the heat absorption deficiency of burner hearth, reduce again the boiling degree of economizer, increased security, the reliability of water circulation.
Described air preheater divides three grades: high-temperature air preheater 8, middle warm air preheater 10 and low-temperature air preheater 11, with the economizer arranged crosswise, to improve hot blast temperature; Low-temperature air preheater is horizontal layout, adopts outer plating enamel pipe, and flue gas contacts with the one side of plating enamel, guarantees that low-temperature air preheater does not produce cold end corrosion.
Operation principle of the present utility model:
Normal temperature air enters from low-temperature air preheater 11, warm air preheating 10 in process, high-temperature air preheater 8 are heated to 300 ℃ of left and right, after entering burner 1 and carbon black tail gas fully mixing, in burner 1 outlet, light, the flue gas of generation is discharged boiler through burner hearth 2, crust block pipe 3, high temperature superheater 4, low temperature superheater 5, convection bank 6, high-temperature economizer 7, high-temperature air preheater 8, low-level (stack-gas) economizer 9, middle warm air preheater 10, low-temperature air preheater 11; Boiler feedwater enters drum through low-level (stack-gas) economizer 9, high-temperature economizer 7 through aqueduct, pot water enters furnace wall cooling through down-comer, produce saturated vapor and enter drum, after carbonated drink is separated, saturated vapor imports membrane wall ceiling, low temperature superheater 5, high temperature superheater 4 through collecting the vapour header for the user through steam guiding tube; For making up the deficiency of burner hearth caloric receptivity, reduce the boiling rate of economizer, be furnished with convection bank 6 after low temperature superheater 5, convection bank 6 is provided with special down-comer and steam guiding tube, guarantees that its safe water circulation is reliable.
Claims (1)
1. a combustion boiler with tailed, comprise; Burner (1), burner hearth (2), crust block pipe (3), high temperature superheater (4), low temperature superheater (5), convection bank (6), high-temperature economizer (7), low-level (stack-gas) economizer (9), and air preheater; Described burner (1) is positioned at burner hearth (2) lower combustion chamber, described crust block pipe (3) is positioned at burner hearth (2) exit, and described crust block pipe (3), high temperature superheater (4), low temperature superheater (5), convection bank (6) are arranged in horizontal flue successively; Described high-temperature economizer (7), low-level (stack-gas) economizer (9) and air preheater are arranged in tail vertical well gas flue; It is characterized in that: described burner (1) is a kind of high-power low heat value Dual-cyclone combustor, is circle of contact direction and is arranged on four jiaos of burner hearth (2) lower combustion chamber; Described burner hearth (2) surrounding is provided with fin panel casing, and forward and backward water-cooling wall is to closing waist in burner hearth, and all heating surfaces in combustion chamber block with refractory material; Described convection bank (6) is arranged in high temperature superheater (4) back, is provided with special down-comer and steam guiding tube; Described air preheater divides three grades: high-temperature air preheater (8), middle warm air preheater (10) and low-temperature air preheater (11), high-temperature economizer (7), high-temperature air preheater (8), low-level (stack-gas) economizer (9), middle warm air preheater (10), low-temperature air preheater (11) successively arranged crosswise in tail vertical well gas flue, described low-temperature air preheater (11) adopts outer plating enamel pipe, is horizontal layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320291365.5U CN203384958U (en) | 2013-05-24 | 2013-05-24 | Carbon black burning tail gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320291365.5U CN203384958U (en) | 2013-05-24 | 2013-05-24 | Carbon black burning tail gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384958U true CN203384958U (en) | 2014-01-08 |
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ID=49873440
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320291365.5U Expired - Lifetime CN203384958U (en) | 2013-05-24 | 2013-05-24 | Carbon black burning tail gas boiler |
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| Country | Link |
|---|---|
| CN (1) | CN203384958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277782A (en) * | 2013-05-24 | 2013-09-04 | 太原锅炉集团有限公司 | Carbon black tail gas combusting boiler |
-
2013
- 2013-05-24 CN CN201320291365.5U patent/CN203384958U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277782A (en) * | 2013-05-24 | 2013-09-04 | 太原锅炉集团有限公司 | Carbon black tail gas combusting boiler |
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| 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: 20140108 |