CN1417520A - Method for obtaining combustion-supporting gas of furnace - Google Patents
Method for obtaining combustion-supporting gas of furnace Download PDFInfo
- Publication number
- CN1417520A CN1417520A CN01129021A CN01129021A CN1417520A CN 1417520 A CN1417520 A CN 1417520A CN 01129021 A CN01129021 A CN 01129021A CN 01129021 A CN01129021 A CN 01129021A CN 1417520 A CN1417520 A CN 1417520A
- Authority
- CN
- China
- Prior art keywords
- stove
- furnace
- oxygen
- combustion
- waste gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 abstract description 10
- 239000000446 fuel Substances 0.000 abstract description 6
- 238000003915 air pollution Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y02E20/344—
Landscapes
- Air Supply (AREA)
Abstract
A method for obtaining the combustion-supporting gas of furnace or kiln includes such steps as supplying oxygen, recovering the waste gas from the flue of furnace or kiln, and mixing the oxygen with the waste gas from flue of furnace or kiln. The oxygen percentage of the obtained mixed gas is greatly higher than that of air, so that the fuel is fully combusted; and most of the flue waste gas is in a recycling state, so that air pollution caused by waste gas emission is reduced, heat energy loss caused by waste gas emission is avoided, and the heat efficiency of the furnace can be effectively improved.
Description
The invention belongs to the heat power engineering field, relate in particular to the acquisition methods of kiln burning combustion-supporting gas.
At present, no matter be to be the stove of fuel with gas, liquid or solid, all be to adopt air as combustion-supporting gas.Because playing the content of the oxygen of combustion-supporting effect in the air only is 20%, make the combustion process of stove exist some problems like this: at first to be that fuel combustion is insufficient, cause NO, CO content height in the flue gas that flue discharges, both caused waste of fuel, again contaminated air; Next is that about 80% non-combustion-supporting gas also is heated in stove thereupon in the air, takes away a large amount of heats when discharging from flue, causes heat-energy losses.
At the problem of above-mentioned existence, the present invention proposes following scheme, makes the insufficient and a large amount of problems that cause heat-energy losses of discharging of stove waste gas of fuel combustion that combustion-supporting gas exists to solve with air.
A kind of comburant gas obtaining method for furnace and niln, comprise oxygen supply, reclaim the stove stack gases, mix wind in the hot-blast stove, it is characterized in that, send into apparatus of oxygen supply oxygen that provides and the stove waste gas that reclaims from flue in the hot-blast stove in the lump, fully mix, the mist that obtains is sent through the hot-blast stove outlet conduit, makes combustion-supporting gas for stove.
Further, the purity of the oxygen that provides is being advisable more than 98%.
Adopt the present invention to obtain the advantage that the combustion-supporting gas of stove has to be:, help the abundant burning of fuel because the oxygen percentage composition of resulting mist is much higher than airborne oxygen percentage composition after waste gas that reclaims from the stove smokejack and the oxygen mix; Because the stack gases major part is in recycling state, has significantly reduced discharge capacity, has both reduced air pollution, can effectively avoid the heat-energy losses in the stack gases again, has improved the combustion thermal efficiency of stove.
Fig. 1 obtains schematic flow sheet for the combustion-supporting gas of stove.
Embodiment: the oxygen of apparatus of oxygen supply 1 output is sent into hot-blast stove 2 through force (forcing) pump 4 and control valve 5 as figure, the high-temp waste gas that stove waste gas smokejack 6 is come out is sent into hot-blast stove 2 and is fully mixed with oxygen through recovery channel 7 simultaneously, and the mist that obtains is delivered to stove 3 by hot-blast stove 2 air outlets and made combustion-supporting gas.
Claims (2)
1, a kind of comburant gas obtaining method for furnace and niln, comprise oxygen supply, reclaim the stove stack gases, mix wind in the hot-blast stove, it is characterized in that, the oxygen that apparatus of oxygen supply is provided is sent in the hot-blast stove in the lump with the stack gases that reclaims from the stove smokejack and is fully mixed, the mist that obtains is sent through the hot-blast stove outlet, makes combustion-supporting gas for stove.
2, stove combustion-supporting gas acquisition methods as claimed in claim 1 is characterized in that the purity of the oxygen that provides is more than 98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01129021A CN1417520A (en) | 2001-11-01 | 2001-11-01 | Method for obtaining combustion-supporting gas of furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01129021A CN1417520A (en) | 2001-11-01 | 2001-11-01 | Method for obtaining combustion-supporting gas of furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1417520A true CN1417520A (en) | 2003-05-14 |
Family
ID=4668827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01129021A Pending CN1417520A (en) | 2001-11-01 | 2001-11-01 | Method for obtaining combustion-supporting gas of furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1417520A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100570217C (en) * | 2006-03-28 | 2009-12-16 | 吴军杰 | Burner capable of saving fuel and reducing pollution |
| CN101881438A (en) * | 2010-07-07 | 2010-11-10 | 李献本 | Non-polluted multifunctional circulating combustion furnace |
| CN102374525A (en) * | 2010-08-12 | 2012-03-14 | 上海尚实能源科技有限公司 | Oxygen-supplementation-type fume gas circulation combustion device |
| CN103363811A (en) * | 2012-03-30 | 2013-10-23 | 鞍钢股份有限公司 | Combustion method for mixing oxygen into high-temperature flue gas |
| CN104861991A (en) * | 2015-04-23 | 2015-08-26 | 武汉钢铁(集团)公司 | Coke oven flue gas recycling system and processing method |
| CN105295962A (en) * | 2014-07-28 | 2016-02-03 | 宝山钢铁股份有限公司 | Method and device for reducing emission of NOx in waste flue gas of coke oven |
| CN109721259A (en) * | 2019-03-06 | 2019-05-07 | 高雷 | A kind of limekiln hot air circulating system |
-
2001
- 2001-11-01 CN CN01129021A patent/CN1417520A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100570217C (en) * | 2006-03-28 | 2009-12-16 | 吴军杰 | Burner capable of saving fuel and reducing pollution |
| CN101881438A (en) * | 2010-07-07 | 2010-11-10 | 李献本 | Non-polluted multifunctional circulating combustion furnace |
| CN102374525A (en) * | 2010-08-12 | 2012-03-14 | 上海尚实能源科技有限公司 | Oxygen-supplementation-type fume gas circulation combustion device |
| CN103363811A (en) * | 2012-03-30 | 2013-10-23 | 鞍钢股份有限公司 | Combustion method for mixing oxygen into high-temperature flue gas |
| CN105295962A (en) * | 2014-07-28 | 2016-02-03 | 宝山钢铁股份有限公司 | Method and device for reducing emission of NOx in waste flue gas of coke oven |
| CN104861991A (en) * | 2015-04-23 | 2015-08-26 | 武汉钢铁(集团)公司 | Coke oven flue gas recycling system and processing method |
| CN109721259A (en) * | 2019-03-06 | 2019-05-07 | 高雷 | A kind of limekiln hot air circulating system |
| CN109721259B (en) * | 2019-03-06 | 2024-01-23 | 高雷 | Lime kiln hot air circulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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 |