CN103589457A - Saturation temperature determining and adjusting method - Google Patents
Saturation temperature determining and adjusting method Download PDFInfo
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- CN103589457A CN103589457A CN201310563970.8A CN201310563970A CN103589457A CN 103589457 A CN103589457 A CN 103589457A CN 201310563970 A CN201310563970 A CN 201310563970A CN 103589457 A CN103589457 A CN 103589457A
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Abstract
The invention provides a saturation temperature determining and adjusting method, and relates to a production method of gas. The method comprises the following steps: when the circulation position of an oxidizing layer is high, the saturation temperature is decreased, the circulation position of the oxidizing layer is lowered by a distance less than or equal to the length of the oxidizing layer for each time; and when the circulation position of the oxidizing layer is low, the saturation temperature is increased, the circulation position of the oxidizing layer is lifted by a distance less than or equal to the length of the oxidizing layer for each time. Each time air and oxygen flow is increased or decreased, the circulation position of the oxidizing layer changes by a distance less than or equal to the length of the oxidizing layer. When the air and oxygen flow is increased, or the saturation temperature is decreased, or the air and oxygen flow is decreased, or the saturation temperature is increased, the circulation position of the oxidizing layer changes and is synchronous with circulation of the oxidizing layer; when the saturation temperature is decreased, discharged steam flow is increased; and when the saturation temperature is increased, the discharged steam flow is decreased. The saturation temperature determining and adjusting method has the advantages of high gasification efficiency, small fluctuation, reduced labor intensity and long service life of a furnace grate.
Description
Technical field
The present invention relates to the production method of coal gas.
Background technology
At present, determine temperature of saturation, according to coal particle size size, moisture content, the ash content of coal, grey molten point, long-play is determined, be there is no directly perceived, unified standard.Primary regulation temperature of saturation does not have the upper limit, or incorrect, and the adjusting time is uncertain, and gasification efficiency fluctuation is large, and easily slagging scorification, burns out fire grate.
Summary of the invention
In order to address the above problem, the invention provides a kind ofly according to zone of oxidation circulation position, determine and regulate the method for temperature of saturation.
To achieve these goals, the invention provides a kind of method of determining and regulating temperature of saturation, temperature of saturation 50-65 ℃, vapor pressure is correct, it is characterized in that, comprises the steps:
Zone of oxidation rotation bit sets high, and reduces temperature of saturation, and zone of oxidation circulation position declines, and is once less than or equal to zone of oxidation length, and after preheating, gasification agent temperature reduces, and in vaporized chemical, steam content reduces, and upper and lower zone of oxidation position connects, and improves gasification efficiency;
Zone of oxidation rotation bit sets low, improve temperature of saturation, zone of oxidation circulation position rises, once be less than or equal to zone of oxidation length, in vaporized chemical, steam content increases, upper and lower zone of oxidation position connects, in 1h, zone of oxidation circulation position bottom line, the zone of oxidation bottom line often showing higher than temperature, be raised to correct zone of oxidation circulation position, in 2h, after preheating, gasification agent temperature is high, reduce gasification efficiency, time lengthening, zone of oxidation circulation position bottom line, the zone of oxidation bottom line or the coincidence that lower than temperature, show, after preheating, gasification agent temperature reduces, stable, improve gasification efficiency, fire grate life, reduce slagging scorification.
The every decline 10mm of zone of oxidation circulation position, in vaporized chemical, steam content reduces 3.0-5.5g/m
3, gas pressure is large, and steam decrement is large.
The every rising 10mm of zone of oxidation circulation position, in vaporized chemical, steam content increases 3.0-5.5g/m
3, gas pressure is large, and steam increment is large.
Once increase air, oxygen flow, in stove, gas pressure increases, and is less than or equal to 60-100Pa, and once oxidation layer circulation position declines, and is less than or equal to zone of oxidation length, and upper and lower zone of oxidation position connects, and gasification efficiency is high.
Once reduce air, oxygen flow, in stove, gas pressure reduces, and is less than or equal to 60-100Pa, and once oxidation layer circulation position rises, and is less than or equal to zone of oxidation length, and upper and lower zone of oxidation position connects, and gasification efficiency is stable.
Second link of zone of oxidation circulation, zone of oxidation starts to decline in 30s, or 30-60s, increases air, oxygen flow, or reduction temperature of saturation, reduce zone of oxidation circulation position, effect, reduces zone of oxidation circulation position, decline with zone of oxidation circulation synchronous, reduce or eliminate zone of oxidation circulation position and decline, the disadvantageous effect to zone of oxidation circulation, gasification efficiency is high, stable.
The 3rd link of zone of oxidation circulation, zone of oxidation starts to rise in 30s, or 30-60s, reduces air, oxygen flow, or raising temperature of saturation, rising zone of oxidation circulation position, effect, rising zone of oxidation circulation position, rise with zone of oxidation circulation synchronous, reduce zone of oxidation circulation position and rise, to zone of oxidation circulation disadvantageous effect, gasification efficiency is stable.
Reduce vaporized chemical steam flow, reduce temperature of saturation, increase outer row's steam flow, vapor pressure is constant or reduce, and zone of oxidation temperature is high, and gasification efficiency is high.
Increase vaporized chemical steam flow, improve temperature of saturation, reduce outer row's steam flow, vapor pressure is constant or increase, and zone of oxidation temperature is high, and gasification efficiency is stable.
The invention has the advantages that: determine and regulate temperature of saturation directly perceived, gasification efficiency is high, and fluctuation is few, reduces labour intensity, and the fire grate life-span is long.
Embodiment
The method of determining and regulating temperature of saturation of the present invention, temperature of saturation 50-65 ℃, vapor pressure is correct, comprises the steps:
Zone of oxidation rotation bit sets high, and reduces temperature of saturation, and zone of oxidation circulation position declines, and is once less than or equal to zone of oxidation length, and after preheating, gasification agent temperature reduces, and in vaporized chemical, steam content reduces, and upper and lower zone of oxidation position connects, and improves gasification efficiency;
Zone of oxidation rotation bit sets low, improve temperature of saturation, zone of oxidation circulation position rises, once be less than or equal to zone of oxidation length, in vaporized chemical, steam content raises, upper and lower zone of oxidation position connects, improve temperature of saturation, in 1h, zone of oxidation circulation position bottom line, the zone of oxidation bottom line often showing higher than temperature, be raised to correct zone of oxidation circulation position, in 2h, after preheating, gasification agent temperature is high, reduce gasification efficiency, time lengthening, zone of oxidation circulation position bottom line, the zone of oxidation bottom line or the coincidence that lower than temperature, show, after preheating, gasification agent temperature reduces stable, improve gasification efficiency, reduce slagging scorification, need zone of oxidation circulation position climb large, once improve temperature of saturation, zone of oxidation circulation position rising 40-100mm, be less than or equal to zone of oxidation length, zone of oxidation temperature is high, steam decomposition rate is high, fire grate life.
The every decline 10mm of zone of oxidation circulation position, in vaporized chemical, steam content reduces 3.0-5.5g/m
3, gas pressure is large, and steam decrement is large.
The every rising 10mm of zone of oxidation circulation position, in vaporized chemical, quantity of steam increases 3.0-5.5g/m
3, gas pressure is large, and steam increment is large.
Once increase air, oxygen flow, in stove, gas pressure increases, and is less than or equal to 60-100Pa, once oxidation layer circulation position declines, and is less than or equal to zone of oxidation length, and zone of oxidation is long, in a stove, gas pressure incremental range is large, improves in time temperature of saturation, rising zone of oxidation circulation position.
Once reduce air, oxygen flow, in stove, gas pressure reduces, and is less than or equal to 60-100Pa, once oxidation layer circulation position rises, and is less than or equal to zone of oxidation length, and zone of oxidation is long, in a stove, gas pressure decrement scope is large, reduces in time temperature of saturation, reduces zone of oxidation circulation position.
Second link of zone of oxidation circulation, zone of oxidation starts to decline in 30s, or 30-60s, increase air, oxygen flow, or reduce temperature of saturation, reduce zone of oxidation circulation position, zone of oxidation circulation dropping distance, with zone of oxidation circulation position dropping distance sum, is less than or equal to zone of oxidation length, zone of oxidation starts to decline in 30s, increase air, oxygen flow, or reduce temperature of saturation, reduce zone of oxidation circulation position, the two while, gasification efficiency is high; Described sum is greater than zone of oxidation length, and zone of oxidation starts the 30-60s that declines, and increases air, oxygen flow, or reduces temperature of saturation, increases once oxidation layer and declines, and zone of oxidation circulation position dropping distance is large, and the time is long, and gasification efficiency is high, stable.
The 3rd link of zone of oxidation circulation, zone of oxidation starts to rise in 30s, or 30-60s, reduce air, oxygen flow, or improve temperature of saturation, rising zone of oxidation circulation position, zone of oxidation circulation climb, with zone of oxidation circulation position climb sum, is less than or equal to zone of oxidation length, zone of oxidation starts to rise in 30s, reduces air, oxygen flow, or improves temperature of saturation, rising zone of oxidation circulation position, the two while, zone of oxidation temperature is high, and gasification efficiency is stable; Described sum is greater than zone of oxidation length, and zone of oxidation starts the 30-60s that rises, and reduces air, oxygen flow, or improves temperature of saturation, increases once oxidation layer and rises, and zone of oxidation circulation position climb is large, and the time is long, and zone of oxidation temperature is high, and gasification efficiency is stable.
Reduce vaporized chemical steam flow, reduce temperature of saturation, increase outer row's steam flow, vapor pressure is constant or reduce, and vapor pressure reduces, and zone of oxidation temperature is high, and gasification efficiency is high.
Increase vaporized chemical steam flow, improve temperature of saturation, reduce outer row's steam flow, vapor pressure is constant or increase, and vapor pressure increment is few, and zone of oxidation temperature is high, and gasification efficiency is stable.
Claims (9)
1. determine and regulate a method for temperature of saturation, temperature of saturation 50-65 ℃, vapor pressure is correct, it is characterized in that, comprises the steps:
Zone of oxidation rotation bit sets high, and reduces temperature of saturation, and zone of oxidation circulation position declines, and is once less than or equal to zone of oxidation length;
Zone of oxidation rotation bit sets low, and improves temperature of saturation, and zone of oxidation circulation position rises, and is once less than or equal to zone of oxidation length.
2. the method for determining and regulating temperature of saturation according to claim 1, is characterized in that: the every decline 10mm of zone of oxidation circulation position, in vaporized chemical, steam content reduces 3.0-5.5g/m
3, gas pressure is large, and steam decrement is large.
3. the method for determining and regulating temperature of saturation according to claim 1, is characterized in that: the every rising 10mm of zone of oxidation circulation position, in vaporized chemical, steam content increases 3.0-5.5g/m
3, gas pressure is large, and steam increment is large.
4. the method for determining and regulating temperature of saturation according to claim 1, it is characterized in that: once increase air, oxygen flow, in stove, gas pressure increases, and is less than or equal to 60-100Pa, once oxidation layer circulation position declines, and is less than or equal to zone of oxidation length.
5. the method for determining and regulating temperature of saturation according to claim 1, it is characterized in that: once reduce air, oxygen flow, in stove, gas pressure reduces, and is less than or equal to 60-100Pa, once oxidation layer circulation position rises, and is less than or equal to zone of oxidation length.
6. the method for determining and regulating temperature of saturation according to claim 1, is characterized in that: second link of zone of oxidation circulation, and zone of oxidation starts to decline in 30s, or 30-60s, increase air, oxygen flow, or reduce temperature of saturation, reduce zone of oxidation circulation position.
7. the method for determining and regulating temperature of saturation according to claim 1, is characterized in that: the 3rd link of zone of oxidation circulation, and zone of oxidation starts to rise in 30s, or 30-60s, reduce air, oxygen flow, or improve temperature of saturation, rising zone of oxidation circulation position.
8. the method for determining and regulating temperature of saturation according to claim 1, is characterized in that: reduce vaporized chemical steam flow, reduce temperature of saturation, increase outer row's steam flow, vapor pressure is constant or reduce.
9. the method for determining and regulating temperature of saturation according to claim 1, is characterized in that: increase vaporized chemical steam flow, improve temperature of saturation, reduce outer row's steam flow, vapor pressure is constant or increase.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310563970.8A CN103589457A (en) | 2013-05-17 | 2013-11-14 | Saturation temperature determining and adjusting method |
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| CN201310183051.8 | 2013-05-17 | ||
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| CN201310563970.8A CN103589457A (en) | 2013-05-17 | 2013-11-14 | Saturation temperature determining and adjusting method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075337A (en) * | 2014-03-10 | 2014-10-01 | 王万利 | Use method for coal gas on kiln |
| CN104593077A (en) * | 2014-03-10 | 2015-05-06 | 王万利 | Method for adjusting and determining circulation position of oxidation layer |
| CN104593078A (en) * | 2014-11-14 | 2015-05-06 | 王万利 | Method for regulating and determining saturation temperature |
| CN105713668A (en) * | 2015-01-29 | 2016-06-29 | 王万利 | Method for adjusting air or oxygen flow |
| CN108865270A (en) * | 2017-05-09 | 2018-11-23 | 王万利 | A method of adjusting and determine saturation temperature |
-
2013
- 2013-11-14 CN CN201310563970.8A patent/CN103589457A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075337A (en) * | 2014-03-10 | 2014-10-01 | 王万利 | Use method for coal gas on kiln |
| CN104593077A (en) * | 2014-03-10 | 2015-05-06 | 王万利 | Method for adjusting and determining circulation position of oxidation layer |
| CN104593078A (en) * | 2014-11-14 | 2015-05-06 | 王万利 | Method for regulating and determining saturation temperature |
| CN105713668A (en) * | 2015-01-29 | 2016-06-29 | 王万利 | Method for adjusting air or oxygen flow |
| CN108865270A (en) * | 2017-05-09 | 2018-11-23 | 王万利 | A method of adjusting and determine saturation temperature |
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Application publication date: 20140219 |