CN103363519A - Blast cap of fluidized bed furnace - Google Patents
Blast cap of fluidized bed furnace Download PDFInfo
- Publication number
- CN103363519A CN103363519A CN2013103359685A CN201310335968A CN103363519A CN 103363519 A CN103363519 A CN 103363519A CN 2013103359685 A CN2013103359685 A CN 2013103359685A CN 201310335968 A CN201310335968 A CN 201310335968A CN 103363519 A CN103363519 A CN 103363519A
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- Prior art keywords
- fluidized bed
- blast cap
- bed furnace
- blast
- hot
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Abstract
The invention provides a blast cap of a fluidized bed furnace. The blast cap is cylindric and provided with a blast cap hole. The blast cap is characterized in that the diameter of the blast cap hole is 6 to 7 mm. The blast cap of the fluidized bed furnace provided by the invention overcomes biases in the prior art and has the following effects and advantages: 1, the boiling effect of the fluidized bed furnace is obviously better; 2, furnace temperature is substantially increased; 3, a hot blast rate is greatly increased, and output and quality of hot blast are improved; 4, the operation rate of the fluidized bed furnace is enhanced through improvement of the blast cap; and 5, the environment is improved, and surge is eliminated. According to practical usage, the blast cap of the fluidized bed furnace enables a preset purpose to be achieved and is applicable to fluidized bed furnaces.
Description
Technical field
The present invention relates to chemical production technical field, relate in particular to a kind of hood of fluidized bed furnace.
Background technology
The production of drop sulfur ammonium mainly is to adopt " the dry internal return integrated technique of slurry-spraying pelletizing ", must utilize hot-blast stove that enough hot blasts are provided.Hot-blast stove adopts the Boiling Combustion mode, and capital equipment comprises boil air heater main body, blast cap and attached upper coal facility.The flue gas that burning produces through the sedimentation dedusting after, allocate cold wind into and regulate and reach required temperature and send into spray granulation drier and carry out dry materials by mending air-valve.In process of production, boil air heater blast cap eye is often blocked by cinder and causes the blast cap eye to diminish, and causes air blast to diminish by the air quantity that the blast cap eye blasts, burner hearth fuel boiling deleterious, stove provides hot blast rate inadequate, has a strong impact on product quality and produces load.Also occurred very large problem on product quality: nitrogen content often not, granularity descends, and intensity descends, and the product moisture absorption, product surface is rough, the product aberration is larger etc.Be that through the crux that must go wrong after the investigation and analysis boil air heater blast cap eye major part is blocked.Want to deal with problems, must reprocess transformation to the blast cap eye.It has been generally acknowledged that the shape that change hood of fluidized bed furnace, such as Chinese patent ZL200720101514.1 " hood of fluidized bed furnace " and ZL201020290097.1 " a kind of hood of fluidized bed furnace ", all changed the shape of hood of fluidized bed furnace, but practical effect is unsatisfactory on boil air heater.
Summary of the invention
The object of the invention is to overcome the prejudice of prior art, practical, effective a kind of hood of fluidized bed furnace are provided, to improve fluidized bed furnace boiling effect, more hot blast rate is provided, thereby improves Yield and quality, improve environment.
To achieve these goals, technical scheme of the present invention is as follows: a kind of hood of fluidized bed furnace, be cylindric, and the blast cap eye is arranged on it, it is characterized in that described blast cap eye diameter is 6～7mm.
The present invention has overcome the prejudice of prior art, the effect of the invention and advantage:
1, hot-blast stove boiling successful improves,
2, fire box temperature obviously improves,
3, provide hot blast rate obviously to increase, Yield and quality improves.
4, pass through the operation ratio of blast cap improvement hot-blast stove.
5, improve environment, eliminate surge.
A kind of hood of fluidized bed furnace provided by the invention uses proof by reality, has reached predetermined purpose, is applicable to fluidized bed furnace.
Description of drawings
Accompanying drawing 1 is a kind of hood of fluidized bed furnace structural representation of the present invention;
Among the figure, 1 is the blast cap eye.
The specific embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment:
The present invention uses at certain boil air heater, and the thermic load of boil air heater is 3350 * 10
4KJ/h, fire coal transports with dolly, and cinder is transported to outward specifies the stockyard.Through research and calculating, determine former blast cap is transformed, its blast cap eye (1) diameter is changed greatly, namely from before less than 5mm, change greatly 6～7mm, to increase its ventilation, enough hot blast rates are provided for postorder workshop section, thereby have improved output and product quality.
A kind of hood of fluidized bed furnace structure of the present invention as shown in Figure 1, a kind of hood of fluidized bed furnace is cylindric, and blast cap eye 1 is arranged on it, it is characterized in that described blast cap eye 1 diameter is 6～7mm.
Effect analysis:
Before not adopting the present invention, the coal breaker hammer is owing to long-term the use is worn, and broken coal effect ratio is with relatively poor, and the screen bar also is worn, and the gap broadens, and fire coal is thicker, boiling deleterious during burning; The air blast blow rate required is inadequate, can not blow burner hearth combustion slag; Air-heater exhausting amount is inadequate, and it is less to take hot blast rate away, and the fire box temperature accumulation raises, and the burner hearth fire coal turns white, easily coking, impact intensification control; Boil air heater combustion chamber blast cap eye is stopped up by cinder, and ventilation reduces, and air blast air blast effect is descended, and the boiling effect is bad, and fire box temperature be cannot get up.
By the investigation and analysis to original data record, can see that original product intensity is not high, the intensity average qualification rate only has about 78%, table specific as follows:
| Month | January | February | March | April |
| Mean intensity: N | 32.9 | 30.8 | 31.1 | 33.7 |
| Qualification rate: % | 86.4 | 73.9 | 71.4 | 82.9 |
Adopt the present invention May, to blast cap eye process and remould, air blast and air-heater facility are constant, and the present invention in June is used for boil air heater production, and the boiling successful improves, and fire box temperature obviously improves, and the stove resistance force diminishes provides hot blast rate obviously to increase.
Hearth of hot-blast stove temperature and hot blast temperature contrast:
| Project | Before the transformation | After the transformation |
| The average inlet temperature of air-heater: ℃ | 510 | 630 |
| The average furnace bore temperature: ℃ | 805 | 925 |
Product strength and the contrast of intensity qualification rate:
| Month | January | February | March | April | May | June |
| Mean intensity: N | 32.9 | 30.8 | 31.1 | 33.7 | 32.1 | 39.6 |
| Qualification rate: % | 86.4 | 73.9 | 71.4 | 82.9 | 79.2 | 100.0 |
| ? | Before the transformation | After the transformation |
| Mean intensity: N | 32.1 | 39.6 |
| Qualification rate: % | 78.8 | 100.0 |
| Average split run output | 165 tons | 186 tons |
This shows that use proof by reality, the present invention has reached predetermined purpose.
Claims (1)
1. a hood of fluidized bed furnace is cylindric, and blast cap eye (1) is arranged on it, it is characterized in that described blast cap eye (1) diameter is 6～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103359685A CN103363519A (en) | 2013-08-05 | 2013-08-05 | Blast cap of fluidized bed furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103359685A CN103363519A (en) | 2013-08-05 | 2013-08-05 | Blast cap of fluidized bed furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103363519A true CN103363519A (en) | 2013-10-23 |
Family
ID=49365460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103359685A Pending CN103363519A (en) | 2013-08-05 | 2013-08-05 | Blast cap of fluidized bed furnace |
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| CN (1) | CN103363519A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86203652U (en) * | 1986-06-12 | 1988-03-02 | 中船总公司第七○三研究所 | Fluidizing reactor burning saw powder |
| CN2708992Y (en) * | 2004-07-15 | 2005-07-13 | 云南驰宏锌锗股份有限公司 | Economic environmental protection type fluidized kiln air distribution board |
| US20070200007A1 (en) * | 2003-12-23 | 2007-08-30 | Rob Stevens | Spraying Device and Method for Fluidised Bed Granulation |
| CN203083351U (en) * | 2013-02-18 | 2013-07-24 | 云南鸿泰博化工股份有限公司 | Air distribution plate of fluidized bed furnace |
| CN203454117U (en) * | 2013-08-05 | 2014-02-26 | 瓮福（集团）有限责任公司 | Funnel cap of fluidized bed combustion boiler |
-
2013
- 2013-08-05 CN CN2013103359685A patent/CN103363519A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86203652U (en) * | 1986-06-12 | 1988-03-02 | 中船总公司第七○三研究所 | Fluidizing reactor burning saw powder |
| US20070200007A1 (en) * | 2003-12-23 | 2007-08-30 | Rob Stevens | Spraying Device and Method for Fluidised Bed Granulation |
| CN2708992Y (en) * | 2004-07-15 | 2005-07-13 | 云南驰宏锌锗股份有限公司 | Economic environmental protection type fluidized kiln air distribution board |
| CN203083351U (en) * | 2013-02-18 | 2013-07-24 | 云南鸿泰博化工股份有限公司 | Air distribution plate of fluidized bed furnace |
| CN203454117U (en) * | 2013-08-05 | 2014-02-26 | 瓮福（集团）有限责任公司 | Funnel cap of fluidized bed combustion boiler |
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Application publication date: 20131023 |