Yong Xing Boiler Group Co.,Ltd |
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Dzl Type Different Pressure Coal Fired Boiler with Travelling Chain Grate for Vietnam Paper Factory
Advantages
1.Low original dust concentration. Efficient and energy-saving
enhanced combustion technology, and designed with large volume
furnace and combustion chamber.
2. Sufficient power output. The middle partition wall structure is
conducive to fly ash burning, increase the flue gas stroke, and
increase the heat transfer in the combustion chamber.
3. Feature layout refresh energy efficiency. Advanced threaded pipe
structure, high heat transfer coefficient, low heat loss, and much
higher efficiency than similar products.
4. Conquer the drum kit problem. Part of the riser on the two sides
of the header is pulled toward the furnace, and the novel furnace
structure avoids the "bullet" defect.
5. Rapid warming. A large number of efficient heat transfer thread
pipe is placed in the shell, and the heating time is about 1/3
shorter than that of the water tube boiler.
6. Tube sheet is reliable and durable. The use of arched tube
sheets and the addition of partitions will improve the water
circulation here and allow the front tube sheets to be adequately
cooled.
7. Low investment in boiler room. In the same capacity furnace
type, the smallest size, the boiler room investment is reduced by
at least 1/3 and the old boiler room is suitable for reconstruction
and expansion.
8. Power failure self-protection. The natural circulation makes the
water wall not vaporized, and it is possible to prevent damage
accidents without special protection measures.
Technical data sheet 1
Auxiliary System | Parts |
Water supply system | soft water, demineralized water system, deaerator, feed water pump, water tank, ammonia adding device, dosing device |
Steam (hot water) system | Steam separator (water) cylinder, desuperheater |
Fuel supply system | Coal machine, belt coal conveyor, crusher, vibrating screen electronic belt scale, electromagnetic iron remover, double pear type unloader, pre-furnace coal feeder, etc |
Smoke system | Blower, induced draft fan, chimney, etc. Sewage (steam) system, row, row, sampler, silencer |
Electronic control system | General control, PLC control, DCS control |
Other equipment in the boiler room | Heat exchange station, circulation pump, decontamination unit, etc. |
Flue gas purification system | Dust collector, desulfurization device, denitration device, etc. |
Technical data sheet 2
Item No. | DZH0.5-0.7 | DZH1-1.0 | DZH1-1.25 | DZH2-1.0 | DZH2-1.25 | DZH4-1.25 | DZH4-1.6 | DZH6-1.25 |
Rated steam output(t/h) | 0.5 | 1 | 1 | 2 | 2 | 4 | 4 | 6 |
Rated work pressure(Mpa) | 0.7 | 1 | 1.25 | 1 | 1.25 | 1.25 | 1.6 | 1.25 |
Rated steam temperature(°C) | 165.3 | 184 | 194 | 184 | 194 | 194 | 204 | 194 |
Rated feed water temperature(°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
Thermal efficiency(%) | 76.6 | 77.18 | 77.6 | 76.8 | 77.7 | 78.8 | 78.8 | 78.5 |
Fuel consumption (kg/h) | 79 | 172 | 178 | 358 | 361 | 726 | 732 | 1080 |
Shipping size(m) | 3.67* 1.76* 2.78 | 4.31* 1.9* 2.86 | 4.31 *1.9* 2.85 | 5.41 *2.6* 3.1 | 5.41 *2.6* 3.26 | 5.86 *2.8* 3.39 | 5.86 *2.8* 3.4 | 6.2* 2.96* 3.58 |
Quckly installed boiler | |||||
boiler model | Unit | DZL1-0.7/1.0-AII | DZL2-0.7/1.0-AII | DZL4-0.7/1.25/1.6-AII | DZL6-1.25/1.6-AII |
capacity | ton/h | 1 | 2 | 4 | 6 |
rated pressure | Mpa | 0.7/1.0 | 0.7/1.0 | 0.7/1.25/1.6 | 1.25/1.6 |
rated steam temeperature | ℃ | 170/184 | 170/184 | 184/193/204 | 193/204 |
feed water temperature | ℃ | 20 | 20 | 20 | 105 |
radiation area | ㎡ | 4.21 | 6.43 | 10.55 | 16.95 |
convection area | ㎡ | 20.68 | 39.23 | 90.45 | 134.87 |
economizer area | ㎡ | 9.66 | 16.56 | 16.56 | 53.13 |
valid grate area | ㎡ | 1.852 | 3.15 | 5.18 | 8.395 |
applicable fuel | * | COAL | COAL | COAL | COAL |
exhaust gas temperature | ℃ | 152/160 | 152/161 | 163/163.8/169.5 | 163/169 |
design efficiency | % | 77.73/77.24 | 78.53/78.18 | 79.37/79.30/78.96 | 79.83/79.19 |
fuel consumption | kg/h | 170.74/172.93 | 341.71/343.63 | 673.22/676.27/682.11 | 866.39/877.51 |
max part size for delivery | mm | 5488*2254*2782 | 5694*2704*3324 | 6743*2954*3508 | 8244*2951*3704 |
TWO PART ASSEMBLED BOILER | ||||||||
boiler model | Unit | SZL6-1.25/1.6-AII | SZL8-1.25/1.6-AII | SZL10-1.25/1.6-AII | SZL12-1.25/1.6-AII | SZL15-1.25/1.6-AII | SZL20-1.25/1.6-AII | SZL25-1.25/1.6-AII |
capacity | ton/h | 6 | 8 | 10 | 12 | 15 | 20 | 25 |
rated pressure | Mpa | 12.5/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 |
rated steam temeperature | ℃ | 193/204 | 193/204 | 193/204 | 193/204 | 193/204 | 193/204 | 193/204 |
feed water temperature | ℃ | 105 | 105 | 105 | 105 | 105 | 105 | 105 |
radiation area | m2 | 18.19 | 22.14 | 25.8 | 25.8 | 34.117 | 53.78 | 99.21 |
convection area | m2 | 121.9 | 158.86 | 200.38 | 250.17 | 331.616 | 411.8 | 457.78 |
economizer area | m2 | 53.13 | 104.64 | 130.8 | 174.4/261.1 | 117.72/117.2 | 212.4 | 476.16 |
valid grate area | m2 | 7.55 | 9.34 | 10.98 | 12.78 | 16.24 | 20.84 | 24.76 |
applicable fuel | COAL | COAL | COAL | COAL | COAL | COAL | COAL | |
exhaust gas temperature | ℃ | 165.78/169.85 | 161/165 | 160/162 | 158/150 | 156.7/159.4 | 153/159 | 152/156 |
design efficiency | % | 80.11/79.44 | 79.95/79.98 | 80.55/80.28 | 80.68/80.72 | 80.48/80.56 | 81.09/80.77 | 81.38/81.26 |
fuel consumption | kg/h | 863.28/874.78 | 1153.42/1161.38 | 1430.96/1442.74 | 1714.5/1721.8 | 2167.89/2164.7 | 2868.63/2884.7 | 3551/3556 |
max part size for delivery | mm | 7100*2800*3500 7300*2540*2330 | 7300*3000*3500 7400*2700*2330 | 7600*3200*3500 7700*2900*2330 | 7600*3200*3500 8500*2900*2330 | 7350*3373*3505 8904*3370*1100 | 7814.7*3573*3511 9439*3768*1100 | 8478*2600*2740 Bulk packing |