CN1262410A - Hot slag ignition method for circulating fluidized-bed boiler - Google Patents
Hot slag ignition method for circulating fluidized-bed boiler Download PDFInfo
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- CN1262410A CN1262410A CN 99112547 CN99112547A CN1262410A CN 1262410 A CN1262410 A CN 1262410A CN 99112547 CN99112547 CN 99112547 CN 99112547 A CN99112547 A CN 99112547A CN 1262410 A CN1262410 A CN 1262410A
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Abstract
A hot slag ignition method for the circulating fluidized-bed boiler includes spreading the cold basic fuel, prepared from soft coal, anthracite and cold slag through mixing, on the fluidized bed, and igniting with hot slag taken from adjacent boiler. Its advantages are low cost, high safety and reliability, high success rate,a nd easy operation.
Description
The invention belongs to a kind of CFBB ignition method, particularly a kind of hot slag ignition method for circulating fluidized-bed boiler.
CFBB in use owing to reasons such as wearing and tearing cause it must periodic inspection, must light a fire again after the maintenance, therefore, igniting is recurrent thing to CFBB, brings many difficulties to production.At present, the ignition method of CFBB has two kinds: a kind of is the grease gun igniting method, adopt this method, need at first at the handy bituminous coal in CFBB point grate upper berth, anthracite and cold slag with 1: 1.5: the calorific value that the ratio cooperation of 7-8 forms is the cold conditions bed material of 4300-4800KJ/kg, start oil gun then, utilize the fuel combustion liberated heat boiler that ignites.Need purchase oil gun before this method is implemented, set up the igniting oil pump room, invest greatlyyer, because the adjusting of oil gun flame and air quantity control is difficult for grasp, increase operation easier, ignition success rate is low, and it is big to put the kerosene consumption, has improved the igniting cost; Another kind method is the wood ignition method, adopt the wood ignition method, need at first be at the handy bituminous coal in CFBB point grate upper berth, anthracite and cold slag with 1: 2: after the ratio of 11-13 cooperates the calorific value that forms to be the cold conditions bed material of 3400-3800KJ/kg, begin to drop into firewood again, firewood drops into while burning, after treating that 2-3 ton firewood all forms the charcoal of igniting, utilize the heat of the charcoal boiler that ignites.Adopt this method to be: need not purchase oil gun and set up the igniting oil pump room, reduce investment, improve security than the advantage of preceding a kind of method, but because firewood combustion is for up to 2-3 hour, the duration of ignition is long, and the firewood consumption is big, the igniting cost is still higher, and ignition success rate is also lower.
The object of the present invention is to provide a kind of little, safe, easy operation, hot slag ignition method for circulating fluidized-bed boiler that ignition success rate is high of investing.
The present invention is achieved in that at first to spread on the circulating fluid bed boiler bed with bituminous coal, anthracite and cold slag and cooperates the cold conditions bed material that forms, squeezes into warm sludge again.This hot slag ignition method for circulating fluidized-bed boiler also can be implemented by following measure: its cold conditions bed material be with bituminous coal, anthracite and cold slag with 1: 2: it is the low heat value cold conditions bed material of 3000-3400kJ/kg that the ratio of 13-15 cooperates the calorific value that forms; The warm sludge temperature of squeezing into is 800-900 ℃, and the amount of squeezing into of warm sludge is 0.9-1.2 a times of cold conditions bed material.Near warm sludge can adopt in the boiler furnace warm sludge, do not harden for the assurance warm sludge when squeezing into warm sludge, near boiler hearth temperature heat-obtaining slag again during can reducing to 800-900 ℃, beaten and just can start blower fan behind the warm sludge and carry out ignition operation, when a grate boiling better, can be gradually during flameholding and bed, and behind the intact bed, control air quantity with total wind, keep noncoking, do not turn black, normal up to boiler operatiopn.
Advantage of the present invention is: compares with the wood ignition method with the grease gun igniting method, and near the warm sludge of boiler utilizing, the igniting cost is low, safe and reliable, ignition success rate is high, ignition process is simple, easy operating.
Embodiment 1
Cooperating the calorific value that forms at the handy bituminous coal in circulating fluid bed boiler bed upper berth, anthracite and cold slag with 1: 2: 15 ratio is the cold conditions bed material of 3000KJ/kg, boiler hearth temperature makes the warm sludge temperature reach 900 ℃ near reducing, squeezing into warm sludge places on the cold conditions bed material, making the warm sludge use amount is 1.2 times of cold conditions bed material, start blower fan and carry out ignition operation, when a grate seethes with excitement better, can be gradually during flameholding and bed, and behind the intact bed, control air quantity with total wind, keep noncoking, do not turn black, normal up to boiler operatiopn.
Embodiment 2
Cooperating the calorific value that forms at the handy bituminous coal in circulating fluid bed boiler bed upper berth, anthracite and cold slag with 1: 2: 14 ratio is the cold conditions bed material of 3200KJ/g, boiler hearth temperature makes the warm sludge temperature reach 850 ℃ near reducing, the warm sludge of getting with cold conditions bed material equivalent places on the cold conditions bed material, start blower fan and carry out ignition operation, when a grate boiling better, can be gradually during flameholding and bed, and behind the intact bed, control air quantity with total wind, keep noncoking, do not turn black, normal up to boiler operatiopn.
Embodiment 3
Cooperating the calorific value that forms at the handy bituminous coal in circulating fluid bed boiler bed upper berth, anthracite and cold slag with 1: 2: 13 ratio is the cold conditions bed material of 3400KJ/kg, boiler hearth temperature makes the warm sludge temperature reach 800 ℃ near reducing, squeezing into warm sludge places on the cold conditions bed material, making the warm sludge use amount is 0.9 times of cold conditions bed material, start blower fan and carry out ignition operation, when a grate seethes with excitement better, can be gradually during flameholding and bed, and behind the intact bed, control air quantity with total wind, keep noncoking, do not turn black, normal up to boiler operatiopn.
Claims (3)
1. a hot slag ignition method for circulating fluidized-bed boiler is at first spread the cold conditions bed material that forms with bituminous coal, anthracite and the cooperation of cold slag on the circulating fluid bed boiler bed, it is characterized in that: squeeze into warm sludge on the cold conditions bed material.
2. hot slag ignition method for circulating fluidized-bed boiler according to claim 1 is characterized in that: the cold conditions bed material be with bituminous coal, anthracite and cold slag with 1: 2: it is the low heat value cold conditions bed material of 3000-3400kJ/kg that the ratio of 13-15 cooperates the calorific value that forms.
3. hot slag ignition method for circulating fluidized-bed boiler according to claim 1 is characterized in that: the warm sludge temperature is 800-900 ℃, and the warm sludge use amount is 0.9-1.2 a times of cold conditions bed material use amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112547 CN1262410A (en) | 1999-11-16 | 1999-11-16 | Hot slag ignition method for circulating fluidized-bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112547 CN1262410A (en) | 1999-11-16 | 1999-11-16 | Hot slag ignition method for circulating fluidized-bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1262410A true CN1262410A (en) | 2000-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99112547 Pending CN1262410A (en) | 1999-11-16 | 1999-11-16 | Hot slag ignition method for circulating fluidized-bed boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN1262410A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292319A (en) * | 2013-05-17 | 2013-09-11 | 福建远翔化工有限公司 | Ignition method of boiling furnace |
| CN103499093A (en) * | 2013-09-26 | 2014-01-08 | 吉木萨尔县光源发电有限责任公司 | Starting ignition method of circulating fluidized bed boiler |
| CN111189052A (en) * | 2020-03-02 | 2020-05-22 | 重庆世银科技有限公司 | Method for treating organic-containing chemical waste salt by adopting self-propagating pyrolysis method |
-
1999
- 1999-11-16 CN CN 99112547 patent/CN1262410A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292319A (en) * | 2013-05-17 | 2013-09-11 | 福建远翔化工有限公司 | Ignition method of boiling furnace |
| CN103292319B (en) * | 2013-05-17 | 2015-06-17 | 福建远翔化工有限公司 | Ignition method of boiling furnace |
| CN103499093A (en) * | 2013-09-26 | 2014-01-08 | 吉木萨尔县光源发电有限责任公司 | Starting ignition method of circulating fluidized bed boiler |
| CN103499093B (en) * | 2013-09-26 | 2015-12-23 | 吉木萨尔县光源发电有限责任公司 | CFBB starting ignition method |
| CN111189052A (en) * | 2020-03-02 | 2020-05-22 | 重庆世银科技有限公司 | Method for treating organic-containing chemical waste salt by adopting self-propagating pyrolysis method |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |