- Contact Person : Ms. LI HAIYAN
- Company Name : Shanghai Chanho Machinery Co., Ltd.
- Tel : 0086-21-20232562
- Fax : 0086-021-58785697
- Address : Shanghai,SHANGHAI,2A-286, No. 350, Chengzhong E. Road, Qingpu Dist. SHANGHAI, CHINA
- Country/Region : China
- Zip : 200120
formaldehyde line
FORMALDEHYDE LINE
1. This formaldehyde line is most advanced formaldehyde line which uses silver method in china . It has advantages in equipments structure, activator making, production technology and control system compared with traditional production technology. The line can produce 37%-42% high concentration formaldehyde stably and also it is best way to produce high concentration formaldehyde with silver method. ( If you add one unit of tail gas system, this device can produce 50%-55% high concentration formaldehyde .)
2. We guarantee consumption of 0.442 t methanol / 37% formaldehyde and minimum it can reach 0.435 t methanol /37% formaldehyde.
3. Main reactor-oxygenation devices structure is totally different from any previous oxygenation device. It solves stress corrosion and gas corrosion in balance heat boiler section of oxygenation device and it extend usage life of oxygenation device greatly.
4. Filer type is different from other suppliers. The structure of filter is reasonable and it is convenient to change and clean filter medium. It adopts new type filter materials with better filter effect (0.3μ99.7% withhold). It improves capacity much . Ordinary just change twice in one year.
5. DCS control system can be choosed so that site monitoring points can be concentrated on 2 sets display screen ( one interphase for reaction part and one inter-phase for absorb system) and the operation is very direct viewing.
EQUIPMENT LIST OF FORMALDEHYDE LINE
ITEM | EQUIPMENT NAME | SPECIFICATION | TYPE | WALL THICKNESS | MATERIAL | QUANTITY | NOTE |
1 | evaporator | DN1000 | 4mm | ss/carbon steel | 1 | Parts contacted with materials are SS 304. Housing, connect big flanges etc are carbon steel inside ss demist wires | |
2 | reboiler | DN550×4200 | 6mm | ss/carbon steel | 1 | Parts contacted methanoal are ss 304. Heat exchange pipe SS 304 25×2mm. Outside shell body is carbon steel with thickness 6 mm. Pressure vessel. | |
3 | air heater | 1100×1800×840 | 3mm | ss/carbon steel | 1 | Parts contacted with gas is ss 304. | |
4 | tail gas heater | 1100×1800×840 | 3mm | ss/carbon steel | 1 | Parts contacted with gas is ss 304. | |
5 | formaldehyde reactor | DN2000×5100 | 8mm | ss/carbon steel | 1 | Parts contacted with materials are SS 304. Housing, connect big flanges etc are carbon steel. Inside heat exchange pipe and tube sheet are ss 316L. Pipe thickness DIA25×2.2mm and tube sheet thickness 20 mm. Other oxygenizer shell body are ss 304. Pressure vessel. | |
6 | No.1 absorb tower including filling materials | DN1800×13500 | 5mm | ss/carbon steel | 1 | Parts contacted with materials are SS 304. Housing, connect big flanges etc are carbon steel including ss structured packing, spraying device. Design standard is for 60000 t / YEAR formaldehyde line. | |
7 | no.2,3 absorb tower including filling materials | DN1600×15800 | 5mm | ss/carbon steel | 1 | Parts contacted with materials are SS 304. Housing, connect big flanges etc are carbon steel including ss structured packing, spraying device. | |
8 | methanol filter | DN500 | 3mm | ss | 2 | SS 304 | |
9 | steam pocket | DN1200×3500 | 10mm | carbon steel | 2 | carbon steel , pressure vessel | |
10 | steam distributor | DN350×3000 | 6mm | carbon steel | 1 | carbon steel , pressure vessel | |
11 | tail gas treatment device | DN1600×16000 | 12mm | 20g/carbon steel | 1 | Carbon steel. Heat exchange pipe are 20 g DIA45×3mm. Tube sheet 16Mn with thickness 36 mm. Pressure vessel. Design standard is for 60000 t / YEAR formaldehyde line. | |
12 | steam filter | DN800×1150 | 5mm | ss/carbon steel | 1 | Parts contacted with materials are SS 304. Housing, connect big flanges etc are carbon steel including filter wires. Pressure vessel . | |
13 | air filter | 1600×800 | 3mm | ss | 1 | Parts contacted with are ss 304 including filter core. | |
14 | mixer | DN550 | 4mm | ss | 1 | Parts contacted with are ss 304 | |
15 | quaternary gas filter | DN2200 | 4mm | ss | 1 | Parts contacted with are ss 304 including filter materials. | |
16 | moisture separator | DN1000×2450 | 4mm | ss | 1 | Parts contacted with materials are SS 304. Housing, connect big flanges etc are carbon steel. | |
17 | air storage tank | DN800 | 6mm carbon | carbon steel | 1 | carbon steel , pressure vessel |
formaldehyde line
