CN104593078A - Method for regulating and determining saturation temperature - Google Patents
Method for regulating and determining saturation temperature Download PDFInfo
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- CN104593078A CN104593078A CN201510044894.9A CN201510044894A CN104593078A CN 104593078 A CN104593078 A CN 104593078A CN 201510044894 A CN201510044894 A CN 201510044894A CN 104593078 A CN104593078 A CN 104593078A
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Abstract
The invention discloses a method for regulating and determining a saturation temperature, relating to a gas production method. The method comprises the following steps that the oxide layer circulation position is low, the saturation temperature is improved, the oxide layer circulation position is ascended by an oxide layer circulation cycle, and the ascending distance is less than or equal to the oxide layer length; the oxide layer circulation position is high, the saturation temperature is reduced, the oxide layer circulation position is descended by an oxide layer circulation cycle, and the descending distance is less than or equal to the oxide layer length; starting from the first link or the second link of the oxide layer circulation, the saturation temperature is improved; starting from the first link of the oxide layer circulation, the saturation temperature is reduced; fire detection is performed at the first link of the oxide layer circulation; during dire detection, the gas pressure increment in the furnace is the same; and the saturation temperature is reduced or improved, or the vapor seal is opened and closed, and the vapor pressure change is reduced or eliminated. The method disclosed by the invention has the advantages of high gasification efficiency, slight fluctuation and long fire grate life, and the labor intensity is reduced.
Description
Technical field
The present invention relates to the production method of coal gas.
Background technology
Prior art, does not have temperature of saturation to change, and with the relation of zone of oxidation circulation position, easily occurs the zone of oxidation of two Temperature displaying, easy slagging scorification, easy burn-out fire grate, reduces gasification efficiency.Determine temperature of saturation, according to coal particle size size, moisture content, the ash content of coal, grey molten point, long-play is determined, does not have directly perceived, unified standard.Primary regulation temperature of saturation does not have the upper limit, or incorrect, and gasification efficiency fluctuation is large.Regulate the temperature of saturation time uncertain, gasification efficiency fluctuation is large.
Summary of the invention
In order to solve the problem, the invention provides a kind of foundation zone of oxidation circulation position, regulate and determine the method for temperature of saturation, the present invention is not particularly illustrated, and zone of oxidation is made a comment or criticism at the fuel bed that zone of oxidation chemical reaction occurs.
To achieve these goals, the invention provides a kind of method regulating and determine temperature of saturation, temperature of saturation, single hop stove 50-65 DEG C, two-stage furnace 40-60 DEG C, vapor pressure is suitable, it is characterized in that, comprising:
Zone of oxidation rotation bit sets low, improve temperature of saturation, zone of oxidation circulation position rises, a zone of oxidation loop cycle, climb is less than or equal to zone of oxidation length, suitable to zone of oxidation circulation position, or the distance of shortening and suitable zone of oxidation circulation position, in vaporized chemical, steam content increases, upper and lower zone of oxidation position connects, there is not the zone of oxidation of two Temperature displaying, in a zone of oxidation loop cycle, zone of oxidation position bottom line, distance higher than the zone of oxidation bottom line of Temperature displaying increases, after preheating, gasification agent temperature raises, reduce gasification efficiency, time lengthening, zone of oxidation position bottom line, distance higher than the zone of oxidation bottom line of Temperature displaying reduces gradually, after preheating, gasification agent temperature reduces gradually, to stable, gasification efficiency raises, fire grate life, reduce slagging scorification,
Zone of oxidation rotation bit sets high, and reduces temperature of saturation, and zone of oxidation circulation position declines, a zone of oxidation loop cycle, dropping distance is less than or equal to zone of oxidation length, suitable to zone of oxidation circulation position, or the distance of shortening and suitable zone of oxidation circulation position, after preheating, gasification agent temperature reduces, and in vaporized chemical, steam content reduces, and upper and lower zone of oxidation position connects, improve gasification efficiency, originally zone of oxidation circulation position is much higher, after reducing temperature of saturation, eliminates single hop stove surface adhesion.
Zone of oxidation circulation position often rises 10mm, and in vaporized chemical, steam content increases 2.8-5.5g/m
3, gas pressure is large, and steam increment is large.
Zone of oxidation circulation position often declines 10mm, and in vaporized chemical, steam content reduces 2.8-5.5g/m
3, gas pressure is large, and steam decrement is large.
Second link of zone of oxidation circulation, in zone of oxidation rising 60s; Or first link of zone of oxidation circulation starts in 60s, zone of oxidation decline process improves temperature of saturation, and effect, zone of oxidation temperature is high, and steam resolution ratio is high.
First link of zone of oxidation circulation starts in 60s, and zone of oxidation decline process reduces temperature of saturation, reduces zone of oxidation circulation position, and effect extends zone of oxidation loop cycle, reduces slag carbon content.
Visit fire, adjustment gas furnace, in first link of zone of oxidation circulation, zone of oxidation decline process, what measure is in zone of oxidation circulation, position when zone of oxidation declines, the zone of oxidation upper end portion of Temperature displaying is reducing zone, and centre is zone of oxidation, end portion is slag blanket, under the prerequisite that slagging-off ash-pan rotating speed is constant, stop slagging-off, position when zone of oxidation declines is as zone of oxidation circulation position, effect, extend zone of oxidation loop cycle, reduce slag carbon content, during slagging-off, measure zone of oxidation circulation position, difficulty is large, reduces gasification efficiency.
Open packing, visit fire, in stove, gas pressure increment is equal, the zone of oxidation top disappearance double altitudes of Temperature displaying, the zone of oxidation length of Temperature displaying has comparability, change zone of oxidation circulation position, fire is visited in 1-2 cycle, the zone of oxidation length of Temperature displaying increases, zone of oxidation circulation position increases, otherwise, the zone of oxidation contraction in length of Temperature displaying, zone of oxidation circulation position reduces, prevent vapor pressure large, air sealing valve aperture is large, in stove, gas pressure increment is large, zone of oxidation bottom line, lower than the zone of oxidation bottom line of Temperature displaying at that time, zone of oxidation temperature is low, reduce gasification efficiency.
Increase gasification agent steam flow, improve temperature of saturation, or open packing, the two, arrange steam flow outside reducing, vapor pressure is constant or change on a small quantity, and zone of oxidation temperature is high, and gasification efficiency is stablized.
Reduce gasification agent steam flow, reduce temperature of saturation, or close packing, the two, arrange steam flow outside increasing, vapor pressure is constant or change on a small quantity, and zone of oxidation temperature is high, and gasification efficiency is stablized.
The invention has the advantages that: determine and regulate temperature of saturation directly perceived, gasification efficiency is high, and fluctuation is few, and reduce labour intensity, the fire grate life-span is long.
Embodiment
Adjustment of the present invention and determine the method for temperature of saturation, temperature of saturation, single hop stove 50-65 DEG C, two-stage furnace 40-60 DEG C, vapor pressure is suitable, comprises the steps:
Zone of oxidation rotation bit sets low, improve temperature of saturation, zone of oxidation circulation position rises, be less than or etc. zone of oxidation length, suitable to zone of oxidation circulation position, or the distance of shortening and suitable zone of oxidation circulation position, a little more than suitable zone of oxidation circulation position, temperature of saturation is reduced after combustion, gasification efficiency is high, improve temperature of saturation, zone of oxidation circulation position rising 60-120mm, zone of oxidation temperature is high, caloric power of gas raises, 3-5h, caloric power of gas reduces, fire grate life, improve temperature of saturation, zone of oxidation top line not higher than, the zone of oxidation top line of Temperature displaying at that time, zone of oxidation temperature-stable, gasification efficiency is stablized, gas furnace normally runs, zone of oxidation circulation position rising 20-70mm, zone of oxidation temperature-stable, gasification efficiency is stablized,
Zone of oxidation rotation bit sets high, and reduces temperature of saturation, and zone of oxidation circulation position declines, be less than or equal to zone of oxidation length, suitable to zone of oxidation circulation position, or the distance of shortening and suitable zone of oxidation circulation position, after reducing temperature of saturation, zone of oxidation bottom line is not less than, at that time the zone of oxidation bottom line of Temperature displaying, zone of oxidation temperature is high, stable, gasification efficiency is high, and gas furnace normally runs, zone of oxidation circulation position decline 20-70mm, zone of oxidation temperature is high, stable, and gasification efficiency is high.
Zone of oxidation circulation position often rises 10mm, and in vaporized chemical, quantity of steam increases 2.8-5.5g/m
3, gas pressure is large, and steam increment is large.
Zone of oxidation circulation position often declines 10mm, and in vaporized chemical, steam content reduces 2.8-5.5g/m
3, gas pressure is large, and steam decrement is large.
Second link of zone of oxidation circulation, in zone of oxidation rising 60s; Or first link of zone of oxidation circulation starts in 60s, zone of oxidation decline process, improve temperature of saturation, second link of zone of oxidation circulation, zone of oxidation rises, improve temperature of saturation, upper and lower zone of oxidation position connects, and zone of oxidation temperature is high simultaneously, gasification efficiency is stablized, first link of zone of oxidation circulation starts, and improve temperature of saturation, zone of oxidation loop cycle is short, time is short, and gasification efficiency is high.
First link of zone of oxidation circulation starts in 60s, zone of oxidation decline process, and reduce temperature of saturation, zone of oxidation loop cycle is short, and the time is short, and gasification efficiency is high.
Visit fire, adjustment gas furnace, in first link of zone of oxidation circulation, zone of oxidation decline process, in advance 3-5min terminates, and manufacture once upper mobile under zone of oxidation by a small margin, gasification efficiency is high.
Open packing, visit fire, in stove, gas pressure increment is equal, the zone of oxidation top disappearance double altitudes of Temperature displaying, and zone of oxidation length of the cycle has comparability, change zone of oxidation circulation position, in 1-2 cycle, the zone of oxidation length of Temperature displaying increases, and zone of oxidation circulation position increases, otherwise, the zone of oxidation contraction in length of Temperature displaying, zone of oxidation circulation position reduces, and prevents vapor pressure large, air sealing valve aperture is large, in stove, gas pressure increment is large, and zone of oxidation bottom line, lower than the zone of oxidation bottom line of Temperature displaying, zone of oxidation temperature is low, reduces gasification efficiency.
Increase gasification agent steam flow, improve temperature of saturation, or open packing, the two, arrange steam flow outside reducing, vapor pressure is constant or change on a small quantity, and zone of oxidation temperature is high, and gasification efficiency is stablized.
Reduce gasification agent steam flow, reduce temperature of saturation, or close packing, the two, arrange steam flow outside increasing, vapor pressure is constant or change on a small quantity, and zone of oxidation temperature is high, and gasification efficiency is stablized.
Claims (9)
1. regulate and determine a method for temperature of saturation, temperature of saturation, single hop stove 50-65 DEG C, two-stage furnace 40-60 DEG C, vapor pressure is suitable, it is characterized in that, comprising:
Zone of oxidation rotation bit sets low, and improves temperature of saturation, and zone of oxidation circulation position rises, a zone of oxidation loop cycle, and climb is less than or equal to zone of oxidation length, suitable to zone of oxidation circulation position, or the distance of shortening and suitable zone of oxidation circulation position;
Zone of oxidation rotation bit sets high, and reduces temperature of saturation, and zone of oxidation circulation position declines, a zone of oxidation loop cycle, and dropping distance is less than or equal to zone of oxidation length, suitable to zone of oxidation circulation position, or the distance of shortening and suitable zone of oxidation circulation position.
2. adjustment according to claim 1 and determine the method for temperature of saturation, is characterized in that: zone of oxidation circulation position often rises 10mm, and in vaporized chemical, steam content increases 2.8-5.5g/m
3, gas pressure is large, and steam increment is large.
3. adjustment according to claim 1 and determine the method for temperature of saturation, is characterized in that: zone of oxidation circulation position often declines 10mm, and in vaporized chemical, steam content reduces 2.8-5.5g/m
3, gas pressure is large, and steam decrement is large.
4. adjustment according to claim 1 and determine the method for temperature of saturation, is characterized in that: second link of zone of oxidation circulation, in zone of oxidation rising 60s; Or first link of zone of oxidation circulation starts in 60s, zone of oxidation decline process improves temperature of saturation.
5. adjustment according to claim 1 and determine the coal gas production method of temperature of saturation, it is characterized in that: first link of zone of oxidation circulation starts in 60s, zone of oxidation decline process reduces temperature of saturation.
6. adjustment according to claim 1 and determine the method for temperature of saturation, is characterized in that: visit fire, adjustment gas furnace, in first link of zone of oxidation circulation, and zone of oxidation decline process.
7. the adjustment as described in claim 1,2 and determine the method for temperature of saturation, it is characterized in that: open sealing gland, visit fire, in stove, gas pressure increment is equal, prevent vapor pressure large, air sealing valve aperture is large, and in stove, gas pressure increment is large, zone of oxidation position bottom line, lower than the zone of oxidation bottom line of Temperature displaying.
8. regulate as claimed in claim 1 and determine temperature of saturation method, it is characterized in that: increase gasification agent steam flow, improve temperature of saturation, or open packing, the two, reduce and arranges steam flow outward, vapor pressure is constant or change on a small quantity.
9. adjustment according to claim 1 and determine the method for temperature of saturation, is characterized in that: reduce gasification agent steam flow, reduces temperature of saturation, or close packing, the two, increase and arranges steam flow outward, vapor pressure is constant or change on a small quantity.
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| CN201510044894.9A CN104593078A (en) | 2014-11-14 | 2015-01-29 | Method for regulating and determining saturation temperature |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105602624A (en) * | 2015-07-08 | 2016-05-25 | 王万利 | Method for using gas on kiln |
| CN108865270A (en) * | 2017-05-09 | 2018-11-23 | 王万利 | A method of adjusting and determine saturation temperature |
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2015
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| CN103589458A (en) * | 2013-05-15 | 2014-02-19 | 王万利 | Gas production method through variation of oxidation layer |
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| CN105602624A (en) * | 2015-07-08 | 2016-05-25 | 王万利 | Method for using gas on kiln |
| 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: 20150506 |