Application:
Two-stage gas producer is made for steel rolling furnace, glass furnace. It can be used as fuel supply equipment for any furnaces which require temperature to be within 400-1500 degree.
Working principle:
Coal gas in the two-stage gas producer is constituted by two parts: the upper and the lower. The upper enter the first electrical tar precipitator to be get rid of heavy tar and dust and then enter the indirect cooler. The lower are dedusted by the cyclone dust collectors and enter the waste heat exchanger and cooled down by it. Meanwhile, add extra gas to sensible heat and cool down with air cooling device. The indirect cooled upper gas and lower gas are sent to the second electrical tar precipitator to get deoiled and dedusted. Add pressure to the purified coal gas in order to transport through the pipe to the users.
Characteristics:
1. The calorific value of coal gas is high. The coal is completely retorted in the furnace so the lower stage contains no tar.
2. With high mechanization and hydraulic pressure for coal filling and slag tapping, the equipment can work steadily.
3. It has good coal adaptability and is especially suitable for soft coal that has high tar content and big gas output.
4. Small floor area, high gas output, no sewage pollution, low operation cost in the long term.
Technical parameters
model
|
CG3Q2.0-1
|
CG3Q2.6-1
|
CG3Q3.0-1
|
CG3Q3.2-1
|
CG3Q3.4-1
|
Hearth diameter
|
2000
|
2600
|
3000
|
3200
|
3400
|
sectional area of hearth
|
3.14
|
5.31
|
7.07
|
8.04
|
9.08
|
Water jacket heating area
|
11.69
|
15.19
|
17.53
|
18.7
|
19.87
|
Types of coal
|
No viscous or weak viscous anthracite coal, the coal should meet the quality standard of GB9143 fixed bed gas furnace under normal pressure.
|
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Coal granularity
|
20-40 25-50 30-60
|
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Coal consumption
|
800-900
|
1200-1500
|
2000-2200
|
2200-2600
|
2500-2800
|
Air consumption
|
2.0-2.5
|
2.0-2.5
|
2.0-2.5
|
2.0-2.5
|
2.0-2.5
|
Vapor consumption
|
0.3-0.5
|
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Coal gas output
|
2500-2800
|
4000-5000
|
5500-3800
|
6300-7500
|
700-8800
|
Coal gas calorific value
upper stage lower stage |
6060-6270
7110-7350 5225-5434 |
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Coal gas outlet pressure
upper stage lower stage |
1.0-1.2
2.0-2.5 |
2.2-3.0
3.0-4.5 |
2.2-3.0
3.0-4.5 |
3.0-3.5
3.5-4.5 |
3.0-3.5
3.5-4.5 |
Coal gas
upper stage lower stage |
80-120
450-550 |
80-120
450-550 |
80-120
450-550 |
80-120
450-550 |
80-120
450-550 |
Max hearth air blower pressure
|
6.0
|
6.0
|
6.5
|
7.0
|
7.5
|
Saturated temperature
|
50-65
|
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Fire hole coal gas seal pressure
|
0.25
|
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Vapor output of Water jacket
|
300
|
450
|
500
|
550
|
550
|
Vapor pressure of water jacket
|
0.07
|
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Type of stocking
|
automatic
|
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Driving device of Stocker
|
Hydraulic drive
|
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Revolving speed of ash tray
|
2.97
|
1.7
|
1.5
|
1.5
|
1..5
|
Power of hydraulic station
|
7.5*2
|
7.5*2
|
11*2
|
11*2
|
11*2
|
Way of discharging slag
|
Wet and automatic
|
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Coal gas outlet diameter
upper stage lower stage |
DN350
400*400 |
DN400
766*766 |
DN400
866*866 |
DN500
866*866 |
DN400
866*866 |